High-efficiency shoe tree production line

Abstract

The invention relates to an efficient shoe tree production line, which relates to the field of plastic molding technology. The invention comprises an extrusion system, a traction system, a trimming system, a molding frame, a molding conveying device, a plurality of molding molds, an upper pressure device, a lower suction system and a negative pressure bonding system which are connected in sequence. Each molding mold is installed on the molding conveying device. The upper pressure device is slidably installed on the molding frame. The upper pressure device points to each molding mold. During the conveying process of the molding conveying device, the upper pressure device and the molding mold move at the same speed. The lower suction system is connected to each molding mold. The negative pressure bonding system comprises a lifting adsorption frame, an adsorption air pipe and a negative pressure bonding air supply device. The lifting adsorption frame is liftably installed on the molding mold. The negative pressure bonding air supply device is connected to the adsorption air pipe. The adsorption air pipe is installed on the lifting adsorption frame. A negative pressure hole is provided on the side wall of the lifting adsorption frame. The adsorption air pipe points to the negative pressure hole. The lower suction system is connected to the inner side of each molding mold, which reduces labor and has high production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of plastic molding, in particular to a high-efficiency shoe tree production line. Background Art

[0002] Plastic shoe trees are mainly produced by injection molding.

[0003] Injection molding is a method of manufacturing parts by injecting plastic material into a mold. Plastic pellets are first placed in the injection molding machine's hopper and melted by heating. The molten plastic is then pushed through the machine's screw and injected through a nozzle into the mold. The injected plastic solidifies as it cools. The molded plastic shoe tree is then removed from the mold, completing the production process.

[0004] However, the existing shoe trees have a slow production speed and require injection molding one by one, which is costly and labor-intensive, making it difficult to meet the needs of large-scale production. Summary of the Invention

[0005] In order to overcome the technical defects of the prior art, the present invention provides a high-efficiency shoe tree production line, which reduces labor and has high production efficiency.

[0006] The technical solution adopted by the present invention is:

[0007] The high-efficiency shoe tree production line includes an extrusion system, a molding system, a traction system and a trimming system which are connected in sequence. The traction system and the trimming system are installed on the side of the molding system. The molding system includes a molding frame, a molding conveying device, a plurality of molding molds, an upper pressure device, a lower suction system and a negative pressure laminating system. The molding conveying device is installed on the molding frame, and each molding mold is installed on the molding conveying device. The upper pressure device is slidably installed on the molding frame, and the upper pressure device points to each molding mold. During the conveying process of the molding conveying device, the upper pressure device and the molding mold are pressed together. The molding die moves at a constant speed, the downward suction system is connected to each molding die, the negative pressure laminating system includes a lifting adsorption frame, an adsorption air pipe and a negative pressure laminating air supply device, the negative pressure laminating air supply device is slidably mounted on the molding frame, the lifting adsorption frame is liftably mounted on the molding die, the negative pressure laminating air supply device is connected to the adsorption air pipe, the adsorption air pipe is mounted on the lifting adsorption frame, a negative pressure hole is provided on the side wall of the lifting adsorption frame, the adsorption air pipe points to the negative pressure hole, the downward suction system is slidably mounted on the molding frame, and the downward suction system is connected to the inner side of each molding die.

[0008] Preferably, the extrusion system comprises a plurality of extruders and a sheet extrusion die, each of the extruders is connected to the sheet extrusion die, and the sheet extrusion die is provided with an extrusion slot.

[0009] Preferably, the forming conveying device is a chain conveyor belt.

[0010] Preferably, the forming mold is provided with a plurality of model grooves, and each of the model grooves is provided with a suction hole connected to the down-suction system.

[0011] Preferably, the upper pressing device includes an upper pressing cylinder, an upper pressing plate, an upper pressing lifting rail and an upper pressing translation slide. The upper pressing translation slide can be slidably installed on the lower side of the top plate of the forming frame. The lower side of the top of the forming frame is provided with a sliding rail parallel to the conveying direction of the forming conveying device. The upper pressing translation slide can be slidably installed on the sliding rail. The forming frame is equipped with an upper pressing sliding cylinder that drives the upper pressing translation slide. The upper pressing cylinder is installed at the bottom of the upper pressing translation slide. The upper pressing lifting rail is installed at the bottom of the upper pressing translation slide. The upper pressing plate rises and slides along the upper pressing lifting rail. The output end of the upper pressing cylinder is installed on the top of the upper pressing plate. The sliding direction of the upper pressing translation slide is parallel to the conveying direction of the forming conveying device.

[0012] Preferably, the down-suction system includes a down-suction sliding frame, a down-suction sliding suction pipe, a down-suction lifter and a down-suction sliding block, the down-suction sliding block is slidably mounted on the down-suction sliding frame, the down-suction lifter is mounted on the down-suction sliding block, the down-suction sliding suction pipe is mounted on the forming mold, the output end of the down-suction lifter is equipped with a down-suction pipe, the down-suction sliding suction pipe is disconnectably connected to the down-suction pipe of the corresponding down-suction lifter, and the down-suction sliding suction pipe is connected to the forming mold.

[0013] Preferably, the negative pressure laminating air supply device includes a laminating adsorption sliding frame, a laminating adsorption lifter and a laminating adsorption sliding block, the laminating adsorption sliding block is slidably installed on the laminating adsorption sliding frame, the laminating adsorption lifter is installed on the laminating adsorption sliding block, and a laminating adsorption tube is installed at the output end of the laminating adsorption lifter, and the adsorption air pipe is disconnectably connected to the laminating adsorption tube of the corresponding laminating adsorption lifter.

[0014] Preferably, the lifting adsorption frame is installed on the forming mold in a liftable manner, and a return spring is provided between the lifting adsorption frame and the forming mold, and the pushing force of the return spring is equal to the gravity of the lifting adsorption frame.

[0015] The beneficial effects of the present invention are:

[0016] The traction system and the trimming system are installed on the side of the forming system, and the extrusion system extrudes the sheet, which is formed into the shape of a shoe rack by the forming system when passing through the forming system. The forming conveyor is installed on the forming frame, and each forming mold is installed on the forming conveyor. Each forming mold is transported by the forming conveyor. The forming conveyor transports while the forming mold forms. The upper pressing device is slidably installed on the forming frame, and the upper pressing device points to each forming mold. The upper pressing device and the forming mold adapt to each other to achieve forming. During the conveying process of the forming conveyor, the upper pressing device and the forming mold move at the same speed, thereby achieving that during the conveying process of the forming conveyor, the upper pressing device and the forming mold are also adapted during the movement.

[0017] The down-suction system is connected to each forming mold, thereby generating negative pressure on the forming mold. The negative pressure laminating system includes a lifting adsorption frame, an adsorption air pipe and a negative pressure laminating air supply device. The negative pressure laminating air supply device is slidably installed on the forming machine frame, and the lifting adsorption frame is lifted and installed on the forming mold. The negative pressure laminating air supply device is connected to the adsorption air pipe, and the adsorption air pipe is installed on the lifting adsorption frame. Before the sheet is formed, the sheet is covered on the lifting adsorption frame. The side wall of the lifting adsorption frame is provided with a negative pressure hole, and the adsorption air pipe points to the negative pressure hole. When the adsorption air pipe blows air to the negative pressure hole, due to Bernoulli's principle, the pressure is small at the position with large flow rate. Due to the extrusion system The sheet extruded by the system is covered on the lifting adsorption rack, and the air on the side of the negative pressure hole close to the forming mold is quickly sucked out, so that the sheet is quickly pressed down and then quickly approaches the forming mold, thereby improving the forming speed. If the diameter of the negative pressure hole is too small, in order to further accelerate the speed of downward deformation of the sheet, the side wall of the lifting adsorption rack can be set as a negative pressure seam. When the adsorption air pipe blows air to the negative pressure seam, the air in the lifting adsorption rack is quickly discharged by the negative pressure seam. The downward suction system can be slidably installed on the forming machine frame. The downward suction system is connected to the inner side of each forming mold, and then after the sheet is pressed down and close to the forming mold, negative pressure continues to be generated to achieve forming. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention.

[0019] Figure 2 Schematic diagram of the molding system structure.

[0020] Figure 3 for Figure 2 Enlarged schematic diagram of point A in the middle.

[0021] Figure 4 Schematic diagram of the cross section of the lifting adsorption rack.

[0022] Figure 5 for Figure 2 Enlarged schematic diagram of point B in the middle.

[0023] Description of reference numerals:

[0024] 1. Extrusion system; 11. Extruder; 12. Extrusion die;

[0025] 2. Molding system;

[0026] 21. Forming frame;

[0027] 22. Molding and conveying device;

[0028] 23. Molding mold; 231. Model groove; 2311. Suction hole;

[0029] 24. Upper pressure device; 241. Upper pressure cylinder; 242. Upper pressure plate; 243. Upper pressure lifting rail;

[0030] 25. Down-suction system; 251. Down-suction sliding frame; 252. Down-suction sliding suction pipe; 253. Down-suction lifter; 254. Down-suction sliding block;

[0031] 26. Negative pressure laminating system; 261. Lifting adsorption rack; 2611. Negative pressure hole; 262. Adsorption air pipe; 263. Negative pressure laminating air supply device; 2631. Laminating adsorption sliding rack; 2632. Laminating adsorption lifter; 2633. Laminating adsorption sliding block. DETAILED DESCRIPTION

[0032] The present invention will be further described below in conjunction with the accompanying drawings:

[0033] like Figure 1 — Figure 5As shown, this embodiment provides an efficient shoe stretcher production line, including an extrusion system 1, a molding system 2, a traction system and a trimming system connected in sequence, the traction system and the trimming system are installed on the side of the molding system 2, the extrusion system 1 extrudes a sheet, and the sheet is molded into the shape of a shoe stretcher by the molding system 2 when passing through the molding system 2, the traction system is used to pull the molded whole plate of shoe stretchers, and under the traction of the traction system, the sheet that has been molded into the shape of a shoe stretcher is cut off when passing through the trimming system, the molding system 2 includes a molding frame 21, a molding conveying device 22, a plurality of molding molds 23, an upper pressing device 24, a lower suction system 25 and a negative pressure laminating system 26, the molding conveying device 22 is installed on the molding frame 21, and each The forming mold 23 is installed on the forming conveying device 22, and the forming conveying device 22 is installed on the forming frame 21. Each forming mold 23 is installed on the forming conveying device 22. Each forming mold 23 is transported by the forming conveying device 22. The forming conveying device 22 transports while the forming mold 23 is formed. The upper pressing device 24 is slidably installed on the forming frame 21. The upper pressing device 24 points to each forming mold 23. The upper pressing device 24 and the forming mold 23 adapt to each other to achieve molding. During the conveying process of the forming conveying device 22, the upper pressing device 24 and the forming mold 23 move at the same speed, thereby achieving that during the conveying process of the forming conveying device 22, the upper pressing device 24 and the forming mold 23 are also adapted during the movement.

[0034] The down-suction system 25 is connected to each forming mold 23, thereby generating negative pressure on the forming mold 23. The negative pressure laminating system 26 includes a lifting adsorption frame 261, an adsorption air pipe 262 and a negative pressure laminating air supply device 263. The negative pressure laminating air supply device 263 is slidably installed on the forming frame 21, and the lifting adsorption frame 261 is lifted and installed on the forming mold 23. The negative pressure laminating air supply device 263 is connected to the adsorption air pipe 262, and the adsorption air pipe 262 is installed on the lifting adsorption frame 261. Before the sheet is formed, the sheet is covered on the lifting adsorption frame 261. The side wall of the lifting adsorption frame 261 is provided with a negative pressure hole 2611, and the adsorption air pipe 262 points to the negative pressure hole 2611. When the adsorption air pipe 262 blows air to the negative pressure hole 2611, due to the Bernoulli principle, the flow The pressure is small at the position with high speed. Since the sheet extruded by the extrusion system 1 is covered on the lifting adsorption frame 261, the air on the side of the negative pressure hole 2611 close to the forming mold 23 is quickly sucked out, causing the sheet to be quickly pressed down and then quickly approach the forming mold 23, thereby improving the forming speed. If the diameter of the negative pressure hole 2611 is too small, in order to further accelerate the speed of downward deformation of the sheet, the side wall of the lifting adsorption frame 261 can be set as a negative pressure seam. When the adsorption air pipe 262 blows air to the negative pressure seam, the air in the lifting adsorption frame 261 is quickly discharged by the negative pressure seam, and the downward suction system 25 can be slidably installed on the forming frame 21. The downward suction system 25 is connected to the inner side of each forming mold 23, and then after the sheet is pressed down and close to the forming mold 23, it continues to generate negative pressure to achieve forming.

[0035] Please note that the reason why the negative pressure laminating system 26 is provided in addition to the downward suction system 25 is to use the negative pressure laminating system 26 to quickly suck the sheet toward the forming mold 23 before the downward suction system 25 sucks the sheet, thereby accelerating the forming speed.

[0036] Specifically, the extrusion system 1 includes a plurality of extruders 11 and a sheet extrusion die 12 . Each extruder 11 is connected to the sheet extrusion die 12 . The sheet extrusion die 12 is provided with an extrusion slot to extrude the plastic sheet.

[0037] Specifically, the forming conveying device 22 is a chain conveyor belt, which is convenient for circulating the forming mold 23 .

[0038] Specifically, the forming mold 23 is provided with a plurality of model grooves 231 , each of which is provided with a suction hole 2311 connected to the downward suction system 25 . The plastic sheet is deformed toward the model groove 231 under the adsorption of the suction hole 2311 until it is formed.

[0039] Specifically, the upper pressing device 24 includes an upper pressing cylinder 241, an upper pressing plate 242, an upper pressing lifting rail 243 and an upper pressing translation slide. The upper pressing translation slide is slidably mounted on the lower side of the top plate of the forming frame 21. The lower side of the top of the forming frame 21 is provided with a sliding rail parallel to the conveying direction of the forming conveying device 22. The upper pressing translation slide is slidably mounted on the sliding rail. The forming frame 21 is provided with an upper pressing sliding cylinder for driving the upper pressing translation slide. The upper pressing cylinder 241 is mounted on the bottom of the upper pressing translation slide. The upper pressing lifting rail 243 is mounted on the bottom of the upper pressing translation slide. The upper pressing plate 242 moves along the upper pressing lifting rail. 243 rises and falls and slides, and the output end of the upper pressure cylinder 241 is installed on the top of the upper pressure plate 242. The sliding direction of the upper pressure translation slide is parallel to the conveying direction of the molding conveying device 22. The upper pressure translation slide drives the upper pressure plate 242 to move horizontally, and the upper pressure cylinder 241 pushes the upper pressure plate 242 downward. While the upper pressure cylinder 241 presses the upper pressure plate 242 downward, the upper pressure sliding cylinder pushes the upper pressure translation slide to translate on the lower side of the top plate of the molding frame 21, and the translation speed of the upper pressure translation slide is consistent with the conveying speed of the molding conveying device 22, so that the upper pressure plate 242 is adapted to the molding mold 23 to achieve molding.

[0040] Specifically, the down-suction system 25 includes a down-suction sliding frame 251, a down-suction sliding suction pipe 252, a down-suction lifter 253 and a down-suction sliding block 254. The down-suction sliding block 254 is slidably mounted on the down-suction sliding frame 251. The down-suction lifter 253 is mounted on the down-suction sliding block 254. The down-suction sliding suction pipe 252 is mounted on the forming mold 23. The output end of the down-suction lifter 253 is mounted with a down-suction pipe. The down-suction pipe is externally connected to an air pump. The down-suction lifter 253 is a conventional cylinder structure. The down-suction sliding suction pipe 252 is disconnectably connected to the down-suction pipe corresponding to the down-suction lifter 253. The down-suction sliding suction pipe 252 is connected to the suction hole 2311. When the down-suction sliding suction pipe 252 is connected to the down-suction pipe under the down-suction lifter 253, the down-suction pipe sucks air so that the forming mold 23 attracts the plastic sheet to achieve forming.

[0041] Specifically, the negative pressure laminating air supply device 263 includes a laminating adsorption sliding frame 2631, a laminating adsorption lifter 2632 and a laminating adsorption sliding block 2633. The laminating adsorption sliding block 2633 is slidably installed on the laminating adsorption sliding frame 2631, and the laminating adsorption lifter 2632 is installed on the laminating adsorption sliding block 2633. The output end of the laminating adsorption lifter 2632 is installed with a laminating adsorption tube, and the laminating adsorption tube is externally connected to an air pump. The laminating adsorption lifter 2632 is a conventional cylinder structure. The adsorption air pipe 262 is disconnectably connected to the laminating adsorption tube corresponding to the laminating adsorption lifter 2632. When the adsorption air pipe 262 is connected to the laminating adsorption tube, air is blown, which produces two effects. One is that the air flow rate on the lower side of the plastic sheet is fast, thereby realizing the downward pressure of the plastic sheet. On the other hand, the air flow is drawn out from the negative pressure hole 2611, further accelerating the speed of the downward pressure of the plastic sheet.

[0042] Specifically, the lifting adsorption frame 261 can be lifted and lowered on the forming mold 23. A return spring is provided between the lifting adsorption frame 261 and the forming mold 23. The pushing force of the return spring is equal to the gravity of the lifting adsorption frame 261. When the upper pressure plate 242 is pressed down, the lifting adsorption frame 261 descends to avoid it. When the plastic sheet is pressed down by the air pressure, a seal is formed between the lifting adsorption frame 261 and the plastic sheet.

[0043] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. High-efficiency shoe tree production line, characterized by: The machine comprises an extrusion system, a molding system, a traction system and a trimming system which are connected in sequence. The traction system and the trimming system are installed on the side of the molding system. The molding system comprises a molding frame, a molding conveying device, a plurality of molding molds, an upper pressure device, a lower suction system and a negative pressure laminating system. The molding conveying device is installed on the molding frame, and each molding mold is installed on the molding conveying device. The upper pressure device is slidably installed on the molding frame, and the upper pressure device points to each molding mold. During the conveying process of the molding conveying device, the upper pressure device and the molding mold, etc. The suction system is connected to each molding mold, and the negative pressure laminating system includes a lifting adsorption frame, an adsorption air pipe and a negative pressure laminating air supply device. The negative pressure laminating air supply device is slidably mounted on the molding frame, and the lifting adsorption frame is liftably mounted on the molding mold. The negative pressure laminating air supply device is connected to the adsorption air pipe, and the adsorption air pipe is mounted on the lifting adsorption frame. A negative pressure hole is provided on the side wall of the lifting adsorption frame. The adsorption air pipe points to the negative pressure hole. The suction system is slidably mounted on the molding frame, and the suction system is connected to the inner side of each molding mold.

2. The high-efficiency shoe tree production line according to claim 1, characterized in that: The extrusion system comprises a plurality of extruders and a sheet extrusion die, each of the extruders is communicated with the sheet extrusion die, and the sheet extrusion die is provided with an extrusion slot.

3. The high-efficiency shoe tree production line according to claim 1 is characterized in that: The forming conveying device is a chain conveyor belt.

4. The high-efficiency shoe tree production line according to claim 1, characterized in that: The forming mold is provided with a plurality of model grooves, and each of the model grooves is provided with a suction hole communicated with a downward suction system.

5. The high-efficiency shoe tree production line according to claim 1, characterized in that: The upper pressing device includes an upper pressing cylinder, an upper pressing plate, an upper pressing lifting rail and an upper pressing translation slide. The upper pressing translation slide can be slidably installed on the lower side of the top plate of the forming frame. The lower side of the top of the forming frame is provided with a sliding rail parallel to the conveying direction of the forming conveying device. The upper pressing translation slide can be slidably installed on the sliding rail. The forming frame is equipped with an upper pressing sliding cylinder that drives the upper pressing translation slide. The upper pressing cylinder is installed at the bottom of the upper pressing translation slide. The upper pressing lifting rail is installed at the bottom of the upper pressing translation slide. The upper pressing plate rises and slides along the upper pressing lifting rail. The output end of the upper pressing cylinder is installed on the top of the upper pressing plate. The sliding direction of the upper pressing translation slide is parallel to the conveying direction of the forming conveying device.

6. The high-efficiency shoe tree production line according to claim 1, characterized in that: The down-suction system includes a down-suction sliding frame, a down-suction sliding suction pipe, a down-suction lifter and a down-suction sliding block. The down-suction sliding block is slidably mounted on the down-suction sliding frame. The down-suction lifter is mounted on the down-suction sliding block. The down-suction sliding suction pipe is mounted on the forming mold. The output end of the down-suction lifter is equipped with a down-suction pipe. The down-suction sliding suction pipe is disconnectably connected to the down-suction pipe of the corresponding down-suction lifter. The down-suction sliding suction pipe is connected to the forming mold.

7. The high-efficiency shoe tree production line according to claim 1, characterized in that: The negative pressure laminating air supply device includes a laminating adsorption sliding frame, a laminating adsorption lifter and a laminating adsorption sliding block. The laminating adsorption sliding block is slidably installed on the laminating adsorption sliding frame. The laminating adsorption lifter is installed on the laminating adsorption sliding block. A laminating adsorption tube is installed at the output end of the laminating adsorption lifter. The adsorption air pipe is disconnectably connected to the laminating adsorption tube of the corresponding laminating adsorption lifter.

8. The high-efficiency shoe tree production line according to claim 1, characterized in that: The lifting adsorption frame is installed on the forming mold in a liftable manner. A return spring is provided between the lifting adsorption frame and the forming mold. The pushing force of the return spring is equal to the gravity of the lifting adsorption frame.

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