The product is mainly composed of input, pre washing, main cleaning, rinsing and output parts.
The standard combined cleaning system is very flexible and can be combined according to the special requirements of users.
The reasonable waterway design achieves water saving and high efficiency, and the water consumption is only 500L/ hours.
The pre washing water tank and the main cleaning tank are equipped with steam heating and temperature control devices to adjust the water temperature to achieve the best cleaning effect.
The conveying device adopts frequency conversion speed regulation, and the conveying chain speed is 0.7-7 M / min, which can be adjusted to meet the cleaning requirements under different conditions.
The main cleaning part is equipped with a swing nozzle cleaning system, and the best cleaning effect can be obtained.
The transmission guide rod can be adjusted, and can be used for cleaning various different sizes of appliances.
There is a large detachable panel on both sides of the tunnel for easy maintenance and cleaning.
The whole machine is made of stainless steel.
The nozzle can be dismantled without any tools, and the direction is easy to adjust.
The pre washing and main cleaning parts are equipped with filtration system, which is easy to remove and easy to clean.
Product features of drum type cleaning machine
Problems of injection mold test
After we finish the mold, we will try the mold, because some defects in the design will cause defects in injection molding. The main defects are several. I will explain them one by one.
Test mold
1, inadequate plastic parts: mainly due to inadequate injection molding machine material position, improper filling flow, or injection machine parameters are not correct, inflatable and exhaust causes are not filled with plastic cavity, plastic parts incomplete or multi cavity cavity filled with several types of cavity filling discontent.
2, the size is unstable: This is mainly due to the poor precision of the mold, the instability of the injection machine and the unstable forming conditions, so that the change of the size of the plastic parts is unstable. It is necessary to modify the mold or adjust the parameters of the injection molding machine.
3. Bubble: due to excessive gas or bad exhaust in the melt, the residual gas in the plastic part is found to be smaller or cluster holes. The surface of the product is not beautiful.
4, Microcosm: due to poor pressure preservation, poor plastic parts cooling, uneven wall thickness and plastic shrinkage, need to adjust the product structure.
5, too large flex: due to poor mold clearance, too large clearance, or plastic flow too good, too much material to make plastic parts edge extrusion extra thin.
6, the weld mark is obvious or too much: because the plastic temperature of the front end is relatively low, the resin phase is difficult to solve, and so on.
What problems should be paid attention to in CNC punching process design
Stamping is a processing method for forming the required shape and size of stamping parts by exerting external force on plate, strip, pipe and profile by press and die to produce plastic deformation or separation. A large number of stamping parts such as automobiles, instruments and meters, household appliances, bicycles, office machines, living utensils and so on. Below is a brief introduction to the design of CNC punching machine.
First, the design principle of numerical control program
The design method of numerical control program has two kinds of manual programming and automatic programming. No matter manual programming or automatic programming, the numerical control program produced should have clear program structure, standard statement, good readability and strong modifiable. Especially for single piece small batch numerical control production, it may be necessary to modify and adjust the program at any time in the machine tool control cabinet. The readability and modifiable of the program are particularly important.
Two. Select the appropriate programming base
In most cases, the base point of the CNC punch press is based on the original point of the machine tool, but sometimes the programming base point outside the original point can greatly reduce the numerical calculation in the program design, reduce the program section and the programming workload, increase the readability and modifiable program, and reduce the errors in the program design. The programming base points can be selected at any part of the part or machine tool, but must be related to the positioning datum of the parts.
Three. Choose the proper order of changing the mold and the path of the knife
When designing CNC punching machine, we should choose a reasonable order of replacement, usually with a circular hole, a rear hole, a big hole after the hole, and a shape after the center. In order to shorten the processing time, at the same time, a set of molds should be selected after all the holes needed to be processed on this part. In order to reasonably select the die changing sequence, we should also select the tool path and ensure the safe and reliable operation of the machine.
Four. The reasonable position of the clamp and the way of displacement
CNC punch press every clamp positioning has a certain range of processing, when exceeding this range, we must clamp the shift to complete the rest of the processing. When the gripper is shifted, the sheet material is pressed by the pressing block first, and the clamp is moved to the base position, and then clamped and continued to process.
Five, reasonable way of discharging
For CNC punching of small and medium-sized parts, typesetting process is usually used to improve the utilization ratio of materials. The process of typesetting can achieve a reasonable route and a reasonable replacement order. At the same time, the auxiliary processing time is shortened and the processing time is saved.
Six. Centralized design of stamping process
In the machining programming of CNC punching machine, the principle of centralized design should be followed, that is, to complete the machining of all types of holes and shape of the CNC machine tool in one time, so as to prevent the occurrence of repeated positioning error. This can give full play to the advantages of CNC machine tools, improve production efficiency and ensure machining quality. For some parts that must be relocated, the method of repeated positioning should be considered fully, and in the case of repeated positioning, the holes with related dimensions should be done as far as possible in a machining location.
Chongyachejianb
The above is the attention to the process design of CNC punch press, good programming habits and clear design ideas, the selection of reliable raw materials and good performance equipment is the key to improve the technological level
The technical difficulties in producing aluminum alloy radiator profiles
Aluminum alloys are widely used in heat dissipating equipment due to their light and beautiful appearance, good thermal conductivity and easy processing to form complex shapes. The design, manufacture and production of aluminum alloy radiator profiles are very difficult.
1. ingot quality requirements
The alloy composition of the ingot must be strictly controlled to ensure the purity of the alloy. The ingot must be homogenized to make the ingot’s microstructure and properties uniform. The surface of the ingots should be smooth, and there is no segregation or slime. The end face of the ingot must be smooth, not cut into a step shape or the cutting slope is too large (the slope should be less than 3mm).
Because the step shape or cutting slope is too large, when the plane die is used to squeeze the heat dissipated profile, if there is no design diversion, the ingot is directly touched by the mold. Because the ingot end face is not flat, the mold is first touched in some places, and the stress concentration is produced. It is easy to squeeze the tooth shape of the mould, or cause the different succor of the material. The phenomenon of extrusion molding is not good.
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2. requirements for the mold
The heat treatment of the mould is very important. It is necessary to use vacuum heating to quenching. It is best to use high pressure pure nitrogen quenching to ensure that all parts of the die after quenching are homogeneous in performance. After quenching, three tempering is required, so that the hardness of the mould is guaranteed to have enough toughness under the premise of HRC48-52. This is an important condition to prevent the die from breaking.
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3. pressure requirements
In order to prevent the die breaking from the extrusion pressure, the extrusion pressure is related to the length of the ingot, the size of the alloy deformation resistance, the state of the ingot, the size of the deformation degree, and so on. Therefore, the extrusion of the cast rod of the aluminum profile should not be too long, which is about (0.6-0.85 times) of the length of the normal casting bar.
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4. Requirements for extrusion process
The key to the production of the profile of the radiator is the first test die of the extrusion die. If there are conditions, the simulation test can be done on the computer to see whether the working belt of the mold design is reasonable, and then the die is tested on the extruder. The first test model is very important, the manipulator should let the main plunger forward and press down under the low pressure of lower than 8MPa. It is best to use the light beam to look after the die outlet. When the die is successfully pressed, the extrusion speed should be controlled so as to achieve smooth operation. When producing radiator profiles, attention should be paid to the heating temperature of the mould, and the mold temperature should be similar to the temperature of the ingot. If the temperature difference is too large, the temperature of the metal will be reduced due to the slow extrusion speed when the upper pressure is pressed.
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In addition to the above factors, the extrusion technology of the profile of the radiator is related to the ability and level of the extruder, the automation of the rear equipment, and the working skills of the workers. The different section of the heat dissipating section should take corresponding measures according to its characteristics, and it can not be generalized. Dongguan Chicco Industrial Co., Ltd., specializing in the processing of aluminum automotive power amplifier radiator, aluminum profile home sound radiator and aluminum LED radiator mainly, also camp CNC processing, all kinds of aluminum and hardware accessories manufacturing.
Milling cutters + features + application
The SEHW series square shoulder milling cutter in ISO can be machined in various forms, such as plane, right angle face and slot. Comb, dense tooth and super dense tooth have its own length. The safe blade groove and brand are used and optimized for a long time. It can realize high efficiency cutting with different conditions and use 4 blade blade with good economy.
The knife is designed with a big positive angle, and the cutting edge is light. The blade’s main cutting edge is a space curve with A edge compensation. The S blade can get an ideal 90 degree on the knife body. When the main angle is on the main corner, there is enough side angle to ensure that the cutting is steady, the maximum depth can reach 10.8MM and the maximum feed can reach 0.3MM/Z.
The blade adopts a simple screw pressing method, the blade is conveniently transposition, the blade has a large space, the cuttings are smooth, the unique blade and tool structure design and manufacture, so that the cutting tool has a high precision. This greatly improves the machining precision and the surface quality of the processed workpiece.
The cutter body is protected by the cemented carbide tool pad with precision plane machining, and the cutter body is durable.
How much do you know about the gain performance of the antenna
Gain means that when the input power is equal, the letter generated by the actual antenna and the ideal radiation unit at the same point in space.
The ratio of the power density to the number. It quantitatively describes the degree of concentration of an input power by an antenna. The gain is obviously related to the antenna pattern. The narrower the main lobe, the smaller the sidelobe and the higher the gain. It is possible to understand the physical meaning of gain by generating signals of a certain size at certain points at a certain distance.
Antenna gain is used to measure the ability of antennas to transmit and receive signals in a specific direction. It is one of the most important parameters for selecting base station antennas.
Generally speaking, gain enhancement mainly depends on reducing the width of the vertical radiating lobe, and maintaining the omnidirectional radiation performance on the horizontal plane. Antenna gain is very important for the operation quality of mobile communication system, because it determines the signal level of the cellular edge. Increasing the gain can increase the coverage of the network in a definite direction, or increase the gain margin within a certain range. Any cellular system is a two-way process, increasing the gain of the antenna and reducing the gain Budget Margin of the bidirectional system. In addition, the parameters for antenna gain are dBd and dBi. The DBi is relative to the gain of the point source antenna, and the radiation in all directions is uniform; the gain of dBd relative to the symmetrical phase antenna is dBi=dBd+2.15. Under the same conditions, the higher the gain, the farther the distance is. Generally, the antenna gain of GSM directional base station is 18dBi and omnidirectional 11dBi.
If an ideal non directional point source is used as the transmitting antenna, the input power of 100W is required, and when a directional antenna with a gain of G = 13 dB = 20 is a transmitting antenna, the input power is only 100 / 20 = 5W. In other words, the gain of an antenna, with the radiating effect on its maximum radiation direction, and the direction free theory. Compare the input power magnification with the point source.
The gain of the half wave symmetric oscillator is G = 2.15 dBi; the 4.5 wave symmetric oscillator is arranged along the vertical line, forming a vertical.
The gain of the four element array is about G = 8.15 dBi (dBi this unit represents the ideal source of the homogeneous radiation.
If the half wave symmetric oscillator is used as a comparison object, the unit of gain is dBd.
Which industries can be applied to the PU conveyor belt
White material PU conveyor belt is a food grade conveyor belt, green material conveyer belt processing and white material is a bit different, the surface is soft, the hardness is relatively large, can be made of anti oil anti fat conveyor belt, the white polyurethane (PU) conveyer belt not only has high tensile strength, good winding, light, thin, toughening of the ordinary conveyor belt. And other characteristics, and oil resistant, non-toxic, hygienic, easy to clean. This kind of conveyor belt accords with hygienic standard, wearable and resistant to physical aging. It is a durable transportation product.
It is suitable for transportation of packaging machinery and fresh surface food, transportation of surface food oven, transportation of surface food processing equipment, chocolate food delivery, biscuit food delivery, Pu food conveyor belt, and White PU conveyor belt, with good anti stickiness, the conveying goods and conveyor belts are separated quickly and effectively. No trace, especially for conveying bread and dough.
PU conveyer belt has the characteristics of oil resistant and wear-resistant, especially for puffed food delivery, fried food PU conveyor belt and black PU conveyor belt, ink green Pu conveyor belt with good anti oil, anti chemical oil properties, cutting resistance, piercing resistance, abrasion resistance, good soft toughness, and used in mineral oil and hydrocarbon products. It is mainly used in production and processing of steel, aluminum, iron and steel machinery, wood sheet Pu conveyor belt, steel transportation, aluminum plate transportation.
Teach you how to wear good saws
aw blade is a general term for thin circular cutting tools used for cutting solid materials. The saw blade can be divided into: diamond saw blade for cutting stone; high speed steel saw blade for cutting metal materials (not embedded hard alloy cutter head); used for solid wood, furniture, wood-based panel, aluminum alloy, aluminum profile, radiator, plastic, plastic steel and other carbide saw blades.
So how do you get a good saw? Today, the sharp sharp saw blade will give you great publicity!!! dance
1, the sawing blade first measure the outer diameter of the saw blade and the center hole, select the centering washer, then put the saw blade on the saw blade seat, and then lock the roll cap of the saw seat, then relax the lock screw and move the saw seat, so that the size of the saw blade is aligned with the blade seat, and then the screw is locked. If the saw blade has broken or made new teeth, guide plates must be used. Generally speaking, it is easier to use guide millstones, so guide plates should be used as far as possible.
2, circular saw blade rotating tighten adjustment if the rotation of the saw blade does not properly tighten, then the blade forward displacement will not be allowed, so when the blade is installed, the circular saw blade is rotated in the direction of the left hand against clockwise. If the loosening is unsuitable, the M17 open wrench is used to adjust the anti loose nut to make the rotation of the saw blade loose and tight. When. The principle of tightness can eliminate the inertia of the saw blade and the impact of the grinding wheel, so it should not be too tight.
3. The thickness of the saw blade is adjusted to make the saw tooth grinding energy average. The center of the grinding wheel and the thickness center of the saw blade should be in a straight line.
4, because the cutting angle adjustment is often changed due to the material to be machined by the saw blade, the suitable cutting angle should be chosen according to the material of the cutting material. The adjustment method of cutting angle is to relax the clamping screw first, then rotate the base of the saw blade to the cutting angle, and then lock the clamping seat screw.
5, tooth type transformation usually has two types of teeth, one is triangular teeth, two is curved teeth, and the teeth should be decided before grinding. When changing the gear type, when the machine is running, change the gear type button with the L plate hand, and choose the type of gear to be rubbed.
6, high and low gear difference before grinding should decide whether to sharpen the high and low teeth. If you want to sharpen the high and low gear, adjust the high and low gear adjustment rod to the required scale.
The function of the universal pen
The powerful function of “universal telemetry pen” comes from the smart chip + hand control technology. It is not only a universal measuring pen, but also a high sensitivity test device. It can not contact electrical equipment, can remotely detect the electric equipment of various voltage levels, and can quickly find a variety of electrical equipment, such as wires, cables, electric blankets and so on. No broken line and broken line position; can find the position of shallow wall catgut embedding; can quickly measure electrical equipment, wire and cable circuit break; can help you solve many electrical maintenance technical problems, and have self inspection, induction control, AC and DC identification, digital and sound, light display and other characteristics. The specific functions are as follows:
Self checking function ensures that the product is safe and reliable.
1. Contact digital display;
2, ultra long distance telemetry high and low voltage electricity (automatic alarm);
3, close distance telemetry high and low voltage electricity (automatic alarm);
4, divide the power zero and fire line out of the wire layer;
5. Quickly locate the broken line in the insulation layer of cables, wires, electric blankets, etc.
6, find the location of shallow wall catgut embedding.
7, distinguish the DC power +, – pole;
8. Estimate the capacity of the battery;
9, daily electrical circuit inspection (such as plugs, wires, electrical appliances, fuse, etc.);
10. Electronic device testing (e.g. resistors, capacitors, diodes, transistors);
11, static electricity check (can detect cloth category);
12, electrical equipment leakage inspection;
13. Estimate the insulation resistance of electrical equipment;
14. AC and DC sound recognition;
Factors affecting turning roundness and accuracy of diamond cutting tools
t is a new technology developed in 60s by using the sharp natural diamond knife to turn the soft metals such as aluminum alloy and copper alloy to get the optical mirror. It has been a new technology in 60s, and has been in history for nearly thirty years.
At the beginning, it was mainly used in advanced technology such as aerospace electronics. The mid 70s has become one of the main means of processing optical parts. High reflectivity can be obtained by cutting optical metal mirrors with diamond knives. With the advent of computer numerical control (CNC) ultra precision lathe in recent years, the contour processing of aspheric surfaces is better solved.
Then, what are the factors that affect the roundness and surface accuracy of optical lens in turning?
Undefined
1. Factors affecting the roundness of the lens
There are two main factors that affect the roundness of the lens, one is the rotary error of the spindle, and the other is the deformation of the clamping part of the. The rotation error of the spindle will be directly transmitted to the lens. Only by improving the rotation accuracy of the spindle can the roundness error of the lens be reduced. Improving the roundness of the spindle of the original machine tool and the verticality of the journal and the shoulder of the thrust table is an effective way to improve the rotation accuracy of the spindle. The accuracy of the measurement is the key to the perpendicularity of the journal and the thrust shoulder. In the actual work, the axis and the axis of the shaft are used as the measuring datum, which not only has enough precision but also the detection state is the same as the use state. The unity of the three benchmarks.
The error of the clamping of the workpiece is the error source of the processing lens. There are two requirements for the installation of high-precision optical lens. The first is that the clamping fixture can not cause or cause deformation of the workpiece. Second, it is easy to disassemble the card. The use of any card loading method will cause local stress on the lens, but it should be reduced as far as possible.
2. Factors affecting the accuracy of lens surface shape
In some countries, some countries use a closed loop numerical control system with the ability of micro time resolution to control the trajectory of the tool, and the surface shape accuracy can reach 2~0.5 microns.
According to the previous processing experience, it is necessary to improve the precision of measuring the taper of the lens first, and then improve the precision of the copying plate, and then improve the precision and stiffness of the hydrostatic guide.
3. Influence of hot deformation of machine tool and workpiece on machining precision
The thermal deformation is mainly caused by thermal expansion and thermal stress, and it occupies a large proportion in the machining error. Even for a small part, the temperature variation of one degree centigrade can cause unacceptable error.
In order to control the temperature rise of the machine tool, the two oil tanks of the machine tool are separated from the machine tool bed, and the machine tool is turned into a stable state for more than two hours before machining. In the process of processing, the local heat source is eliminated, the machine tool light is closed at any time, and the operator pays attention away from the machine tool after the knife, and the internal oil of the part is taken. The bath method reduces the thermal distortion of the lens. The machine tool works in the constant temperature room.
The aspheric mirror that is superfined and turned off by a diamond knife needs polishing and polishing the surface of the parts to further improve the accuracy and smoothness of the surface.
epilogue
It is necessary to use advanced diamond tools to turn over optical parts. The spindle bearing of machine tool usually adopts hydrostatic bearing with liquid or gas, the rotary precision is 0.05~0.025 micron, and all of them have enough stiffness and good repeatability. Besides, machine tools require higher level in vibration control, temperature control, servo performance and positioning accuracy. The preparation of diamond tools, the selection of process parameters, the stress free loading of workpiece and the selection of tools should be carefully prepared and implemented.
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