A list of the contents of this article:
- 1 、What is a door frame forming machine?
- 2 、Brief introduction of EDM Machine
- 3 、What are the forming methods of welded steel pipes
- 4 、What is a plastic injection molding machine? What is it used for? What is the finished product?
- 5 、Does anyone know the working principle and characteristics of vertical vibration extrusion molding machine?
What is a door frame forming machine?
1. Forming process
Automatic feeding-guiding-leveling, feeding-continuous punching-forming-sizing, cutting-receiving
2. Unit performance
2.1 range of rolled plates
Material: galvanized sheet, low carbon steel, such as Q235
Plate thickness: 0.8 ≤∮≤ 1.5 “
Sheet width: 150 ≤ §≤ 300mm
2.2 production area: 30 meters long X 3 meters wide
2.3Total installed capacity: 42kw
2.4equipped with gas source: gas source: 0.9m3 / min, 0.6~0.7MPa
3. Technical parameters of the main components
3. 1 automatic discharging machine:
3.1.1 Internal expansion type, load 3T
3.1.2 drive 4kw variable frequency motor
3.1.3 Inner diameter of coil: 500 ~ 520mm, outer diameter of coil: ≤ 1200
3.1.4 automatic control of discharge speed by electrical induction
3. 2 guide rack:
3.2.1 one pair of horizontal rollers and two opposite rollers
3.2.2 it can move in the same direction and guide the movement.
3. 3 leveling machine
3.3.1 Correction roller: upper 4 / lower 4, front and rear one pair of pinch rollers.
3.3.2 leveling ring material range: maximum material width 350mm
Maximum material thickness 0.8-1.5mm
3.3.3 driving force: 2kw servo motor
3 and 4 continuous punching parts
3, 4, 1 rack: four-column punching rack
3.4.2 stamping die: stamping die
Die material: Cr12, quenching treatment, hardness up to 58-62 °
3. 5 forming mainframe
3, 5, 1 rack: the frame is gantry type, side pull type to replace the roller mode.
3, 5, 2 forming racks: 18
3, 5, 3 maximum feed width ≤ 350mm, rolled plate thickness: 0.8 ≤∮≤ 1.5mm
3, 5, 4 roll shaft diameter: 60mm, material 40Cr, heat treatment: quenching and tempering
3, 5, 5 roller material: GCr15, integral quenching treatment, hardness HRC56-62 °
3, 5, 6 motor power: 22kw variable frequency motor, ZQ400 reducer
3, 5, 7 transmission mode: each rack is equipped with a gear distribution box transmission (except the main power position)
3.6 cut-off part
3, 6, 1 hydraulic blade cut off
3, 6, 2 hydraulic pumping stations: 5.5kw
3, 6, 3 blade material: Cr12, quenching treatment.
3, 7 electrical control: PLC control, LCD screen operation, encoder fixed length.
Brief introduction of EDM Machine
EDM machine tool refers to the CNC machine tool used for electrical discharge machining. After the designed model is machined with copper and other electrode materials by engraving and milling machine or lathe, the machine tool is put on the EDM machine tool to do EDM. It is also called CNC EDM machine tool.
Buy electric spark molding machine to go to Kai Mechanical and Electrical Technology Co., Ltd., the company was established in May 2008, located in Suzhou, Jiangsu Province, the existing staff of more than 100 people. Suzhou Longkai Mechanical and Electrical Technology Co., Ltd., referred to as Suzhou Longkai Technology, is a new modern numerical control equipment company integrating R & D, manufacturing and sales. The company mainly sells spinneret die, CNC drilling machine, CNC piercing machine, fast WEDM, WEDM, turret milling machine, surface grinder, EDM machine and other mechanical and electrical equipment sold all over the world.
Please consult Longkai mechanical and electrical customer service for more questions!
What are the forming methods of welded steel pipes
Common methods are:
1. Single radius forming method
There are three kinds of single radius roll forming methods: circumferential bending forming method, edge bending forming method and central bending forming method. The single radius forming method is that the pass is composed of a single radius, and the horizontal roll and vertical roll of the forming machine are arranged alternately. The strip passes through the middle of the horizontal roll and the vertical roll, and gradually bends the plate into a tube. two。 Circumferential bending method
The bending radius of each frame decreases gradually when the strip is bent at the same time in the whole width direction; the edge bending method begins to bend from the edge of the strip, and the bending radius is constant, and the deformation angle is gradually increased to reduce the width of the middle part of the strip until the strip is closed in a circle; the central bending method starts the bending deformation from the central part of the strip, the bending radius is constant, and gradually extends to the edges on both sides until the circle is closed. 3. Double radius forming method (comprehensive bending forming method)
More than two basic deformation methods are used for combined deformation, but the edge forming method and circumferential forming method are widely used. The forming method of comprehensive deformation of the edge and circumference of the tube billet, which takes the pass radius of the extrusion roll or the radius of the finished tube as the edge bending radius, bends the edge of the steel strip to a certain deformation angle, and then the forming times are basically unchanged, while the bending forming of the middle part of the strip is distributed according to the circumferential bending forming method. The forming process of this method is stable, the deformation is uniform, the edge is relatively elongated, and the forming quality is good.
What is a plastic injection molding machine? What is it used for? What is the finished product?
Plastic injection molding machine is used for injection molding machines, a wide range of products, such as the general NOTEBOOK,LCD frame, mobile phone case, TV case and so on, almost all plastic parts are made in this way.
The following is the working principle of the injection molding machine and the injection molding process:
1. The working principle of injection molding machine
The working principle of the injection molding machine is similar to that of the syringe for injection. With the help of the thrust of the screw (or plunger), the plastic which has been plasticized and melted (that is, viscous flow) is injected into the closed mold cavity, and the product is obtained after curing and shaping.
Injection molding is a cyclic process, and each cycle mainly includes: quantitative feeding-melt plasticizing-pressure injection-filling cooling-opening and taking parts. Take out the plastic part and then close the mold for the next cycle.
2. The structure of injection molding machine.
According to the plasticizing mode, the injection molding machine is divided into plunger injection molding machine and screw injection molding machine. According to the transmission mode of the machine, it can be divided into hydraulic type, mechanical type and hydraulic-mechanical (connecting rod) type, and it is divided into automatic, semi-automatic and manual injection molding machine according to the mode of operation.
(1) horizontal injection molding machine: this is the most common type. The mold closing part and the injection part are on the same horizontal centerline, and the mold is opened along the horizontal direction. Its features are: the fuselage is short, easy to operate and maintain; the center of gravity of the machine is low, and the installation is stable; after the product is ejected, the product can be automatically dropped by gravity, so it is easy to realize automatic operation. At present, this type of injection molding machine is mostly used in the market.
(2) Vertical injection molding machine: the mold closing part and the injection part are on the same vertical centerline, and the mold is opened along the vertical direction. Therefore, the utility model has the advantages of small area, easy placement of inserts, convenient loading and unloading of moulds, and the materials falling into the hopper can be plasticized more evenly. However, after the product is ejected, it is not easy to drop automatically, it must be removed by hand, and it is not easy to realize automatic operation. Vertical injection molding machine is suitable for small injection molding machine, generally less than 60 grams of injection molding machine is more, large, medium-sized machine is not suitable.
(3) Angle injection molding machine: its injection direction and mold interface are on the same surface, so it is especially suitable for flat products where gate marks are not allowed in the machining center. It covers an area smaller than the horizontal injection molding machine, but the inserts put into the mold are easy to fall. This type of injection molding machine is suitable for small machines.
(4) Multi-mold turntable injection molding machine: it is a special injection molding machine with multi-station operation, which is characterized by the turntable structure of the mold closing device and the rotation of the mold around the rotating shaft. This type of injection molding machine gives full play to the plasticizing ability of the injection device, which can shorten the production cycle and improve the production capacity of the machine. therefore, it is especially suitable for the production of mass products with long cooling setting time or more auxiliary time due to the placement of inserts. However, because the mold closing system is huge and complex, and the mold closing force of the mold closing device is often small, this kind of injection molding machine is widely used in the production of plastic soles and other products.
The general injection molding machine includes injection device, mold closing device, hydraulic system and electrical control system and so on.
The basic requirements of injection molding are plasticizing, injection and molding. Plasticizing is the premise of realizing and ensuring the quality of molded products, and in order to meet the requirements of molding, injection must have sufficient pressure and speed. At the same time, due to the high injection pressure, there is a high pressure in the mold cavity (the average pressure in the mold cavity is generally between 20~45MPa), so there must be enough mold closing force. Thus it can be seen that the injection device and mold closing device are the key components of the injection molding machine.
3. Operation of injection molding machine
3.1 Action procedure of injection molding machine
Mold closing → pre-molded → inverted → nozzle forward → injection → packing → nozzle back → cooling → opening → ejection → door → take workpiece → close → closing mold.
3.2 injection molding machine operation items: injection molding machine operation items include control keyboard operation, electrical control cabinet operation and hydraulic system operation. Select the injection process, feeding action, injection pressure, injection speed and ejection form, monitor the temperature, current and voltage of each section of the barrel, adjust the injection pressure and back pressure, and so on.
3.2.1 Action selection in injection process
The general injection molding machine can be operated either manually or semi-automatically or fully automatically.
Manual operation is in a production cycle, each action is realized by the operator toggling the operation switch. Generally, it is only selected when testing the machine to adjust the mold.
In semi-automatic operation, the machine can automatically complete the action of a work cycle, but after each production cycle, the operator must open the safety door, remove the workpiece, and then close the safety door, so that the machine can continue the next cycle of production.
When fully automatic operation, the injection molding machine can automatically enter the next working cycle after completing the action of one working cycle. In the normal continuous working process, there is no need to stop the machine for control and adjustment. However, it should be noted that if fully automatic work is required, (1) do not open the safety door halfway, otherwise the automatic operation will be interrupted; (2) the material should be fed in time; (3) if you choose the electric eye sensor, you should be careful not to close the electric eye.
In fact, it is usually necessary to stop temporarily in the fully automatic operation, such as spraying release agent to the machine mold and so on.
In normal production, semi-automatic or fully automatic operation is generally selected. At the beginning of the operation, the mode of operation (manual, semi-automatic or fully automatic) should be selected according to the needs of production, and the manual, semi-automatic or fully automatic switch should be switched accordingly.
The semi-automatic and fully automatic working procedure has been determined by the circuit itself. the operator only needs to change the speed and pressure, the length of time, the number of thimbles and so on on the cabinet surface, so that the working procedure will not be confused by the operator adjusting the wrong button.
Before each action is adjusted properly in a cycle, manual operation should be selected first, and after confirming that each action is normal, semi-automatic or fully automatic operation should be selected.
3.2.2 selection of premolded action
According to whether the injection seat retreats before and after pre-plastic feeding, that is, whether the nozzle leaves the mold, the injection molding machine generally has three options.
(1) fixed feeding: the nozzles are always affixed to the mold before and after premolding, and the injection seat does not move.
(2) pre-feeding: the nozzle carries on the pre-plastic feeding against the mold, the pre-molding is finished, the injection seat retreats, and the nozzle leaves the mold. The purpose of choosing this method is to use the injection hole of the mold against the nozzle during premolding, so as to prevent the melt from flowing out of the nozzle when the back pressure is high, and after premolding, the heat transfer between the nozzle and the mold can be avoided for a long time, which affects the relative stability of their respective temperature.
(3) Post-feeding: after the injection is completed, the injection seat retreats, the nozzle leaves the mold and then premolded, and the injection seat moves forward after premolding. This action is suitable for processing plastics with very narrow molding temperature, because the contact time between the nozzle and the mold is short, the heat loss is avoided and the solidification of the melt in the nozzle hole is avoided.
After the injection is over and the cooling timer is finished, the premolding action begins. The screw rotates to squeeze the plastic melt to the front of the screw head. Due to the function of the one-way valve at the front end of the screw, the molten plastic is accumulated at the front end of the barrel, forcing the screw back. When the screw retreats to a predetermined position (this position is determined by the stroke switch to control the distance of the screw retreat to achieve quantitative feeding), the premolding stops and the screw stops rotating. This is followed by the retractive action, that is, the screw makes a small amount of axial retreat, which can relieve the pressure of the molten material gathered at the nozzle and overcome the “salivation” phenomenon caused by the imbalance of pressure inside and outside the barrel. If there is no need for retraction, it should be stopped and the switch should be set to the appropriate position to allow the premolding to stop. At the same time when the switch is pressed, the reverse stop switch is also pressed. When the screw retracts back to the pressure stop switch, the reversal stops. Then the betting seats began to fall back. When the injection seat retreats to the pressure stop switch, the injection seat stops retreating. If the fixed feeding mode is adopted, attention should be paid to adjusting the position of the stroke switch.
In general, fixed feeding is adopted in general production to save the injection seat advance and retreat operation time and speed up the production cycle.
Does anyone know the working principle and characteristics of vertical vibration extrusion molding machine?
What we buy is the product of Wali heavy Industry Machinery Co., Ltd. I will tell you the working principle of their machinery. Wali Machinery specializes in manufacturing vertical vibration extrusion molding machine, carbon electrode molding machine. Vertical vibration extrusion molding machine, carbon electrode molding machine can withstand your strict inspection, high-quality vertical vibration extrusion molding machine, carbon electrode molding machine to create higher value for you. Only do the products that the customers are satisfied with, not the products that the customers don’t want! I. the scope of application of machinery
This machine is suitable for producing carbon products with large cross-section, round and rectangular cross-section and long length. Such as: graphite electrode, carbon electrode, carbon block and so on. The internal structure and volume density of the finished products are consistent. This equipment can replace the large extrusion molding machine.
Second, working principle and characteristics
The molding machine hangs the vibration motor on both sides of the mold barrel as a vibration source, and a pressure mechanism is arranged above and below the mold barrel. After the material in the mold barrel is pressurized up and down, and after the end of the pressurized vibration, the mold barrel is flipped to the horizontal position. The molded products are pushed out and cooled by a hydraulic pusher set at the bottom of the mold barrel, and become qualified raw electrode products after inspection.
The main features are: reasonable design of vibration source, reliable and easy vacuum mode, simple overall structure, convenient maintenance and small amount of maintenance, large single machine capacity and high degree of automation. For detailed technical parameters, please consult the customer service of Wali heavy Industry Machinery Company! I hope it will help you!
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