Foaming device for EVA foaming shoe material production

Abstract

The utility model discloses an EVA foaming shoe material production foaming device which comprises a workbench and a plurality of supporting legs, the upper end of the workbench is fixedly connected with a U-shaped frame, a first transverse plate is jointly and fixedly connected between the inner side walls of the two ends of the U-shaped frame, the first transverse plate is detachably connected with a plurality of lower forming heating molds, and the lower forming heating molds are fixedly connected with the workbench. And an air cylinder is installed at the inner top of the U-shaped frame, a second transverse plate is installed at the tail end of an output shaft of the air cylinder, and a plurality of upper forming heating molds are detachably connected to the bottom of the second transverse plate. The EVA material foaming device is reasonable in structural design, EVA materials are foamed under the combined action of the upper forming heating mold and the lower forming heating mold, the annular scraper is controlled to move downwards, redundant materials overflowing from the upper forming heating mold and the lower forming heating mold can be scraped off, and the scraped materials can fall into the waste storage box to be collected; and the waste storage box can be conveniently pulled out forwards to treat the waste, and operation is easy and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of foaming shoe processing, in particular to a foaming device for producing EVA foaming shoe materials. Background Art

[0002] EVA is the main material for the soles of sports shoes, and it has the advantages of being light and shock-resistant. The EVA one-step molding process often uses a paired upper and lower mold as a paired mold. After adding EVA, fillers, foaming agents, bridging agents and other materials, the upper and lower molds are kept in a pressed state and heated to form a molded product.

[0003] During the foaming process of EVA foam shoe material production, EVA is easy to overflow the mold cavity after foaming, resulting in scraps and leftovers, which require extra effort to cut off, making the operation inconvenient and affecting work efficiency. For this reason, we designed an EVA foam shoe material production foaming device to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve the problems existing in the prior art, and a foaming device for producing EVA foamed shoe materials is proposed. The EVA material is foamed by the joint action of an upper molding heating mold and a lower molding heating mold, and the annular scraper is controlled to move downward, so that the excess material overflowing from the upper molding heating mold and the lower molding heating mold can be scraped off, and the scraped material can fall into a waste storage box for collection, and the waste storage box can be conveniently pulled forward to process the waste, and the operation is simple.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A foaming device for producing EVA foamed shoe materials comprises a workbench and a plurality of supporting legs, wherein a U-shaped frame is fixedly connected to the upper end of the workbench, a first cross plate is fixedly connected between the inner side walls at both ends of the U-shaped frame, a plurality of lower forming heating molds are detachably connected to the first cross plate, a cylinder is installed at the inner top of the U-shaped frame, a second cross plate is installed at the end of the output shaft of the cylinder, a plurality of upper forming heating molds are detachably connected to the bottom of the second cross plate, the plurality of upper forming heating molds are respectively opposite to the plurality of lower forming heating molds, a scraper assembly is commonly sleeved on the side walls of the plurality of upper forming heating molds, the scraper assembly is driven to move up and down by a driving assembly installed on the second cross plate, and a waste storage box is provided above the workbench.

[0007] Preferably, the plurality of lower forming and heating dies are all mounted on the upper end of the first transverse plate by screws, and the plurality of upper forming and heating dies are all mounted on the bottom of the second transverse plate by screws.

[0008] Preferably, a plurality of through openings are formed through the first transverse plate.

[0009] Preferably, the scraper assembly includes a plurality of annular scrapers which are respectively slidably mounted on the side walls of the upper molding heating molds, two adjacent annular scrapers are connected by a connecting rod, and the opposite side walls of the two outermost annular scrapers are fixedly connected to support plates.

[0010] Preferably, the drive assembly includes a servo motor installed on the upper end of the second horizontal plate, a threaded rod is installed at the end of the output shaft of the servo motor, the threaded rod thread passes through one of the support plates, and the bottom of the second horizontal plate is fixedly connected to a limit rod, and the limit rod slides through the other support plate.

[0011] Preferably, a baffle is fixedly connected to the upper end of the workbench, and the waste storage box is abutted against the front side wall of the baffle. Two vertical plates are fixedly connected to the upper end of the workbench, and the front side walls of the two vertical plates are rotatably connected to a baffle that abuts against the front side wall of the waste storage box.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The EVA foam shoe material production foaming device adds the raw materials for producing EVA foam shoes into multiple lower molding heating molds, starts the cylinder to drive the second horizontal plate to move downward until the multiple upper molding heating molds are completely closed with the corresponding lower molding heating molds, and the EVA material is foamed by the upper molding heating mold and the lower molding heating mold. It can foam multiple EVA foam shoe materials at the same time and is easy to operate.

[0014] 2. In the EVA foam shoe material production foaming device, the servo motor drives the threaded rod to rotate, which can move multiple annular scrapers downward to scrape off the excess material overflowing from the upper molding heating mold and the lower molding heating mold. The scraped material can fall into the waste storage box for collection, and the waste storage box can be pulled forward to process the waste, which is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure from a first perspective of a foaming device for producing EVA foamed shoe materials proposed by the utility model;

[0016] Figure 2 This is a second-view stereoscopic structural diagram of an EVA foam shoe material production foaming device proposed by the utility model;

[0017] Figure 3 This is a schematic diagram of the main plane structure of an EVA foam shoe material production foaming device proposed by the utility model;

[0018] Figure 4 The utility model provides a schematic diagram of the top plan structure of a foaming device for producing EVA foamed shoe materials.

[0019] In the figure: 1. workbench; 2. supporting legs; 3. U-shaped frame; 4. first horizontal plate; 5. lower forming and heating mold; 6. baffle plate; 7. through port; 8. cylinder; 9. second horizontal plate; 10. upper forming and heating mold; 11. annular scraper; 12. connecting rod; 13. supporting plate; 14. limiting rod; 15. servo motor; 16. threaded rod; 17. baffle plate; 18. waste storage box; 19. vertical plate. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-Figure 4 A foaming device for producing EVA foamed shoe materials comprises a workbench 1 and a plurality of supporting legs 2. A U-shaped frame 3 is fixedly connected to the upper end of the workbench 1. A first horizontal plate 4 is fixedly connected between the inner side walls at both ends of the U-shaped frame 3. A plurality of lower molding heating molds 5 are detachably connected to the first horizontal plate 4. A plurality of through openings 7 are formed through the first horizontal plate 4. The arrangement of the through openings 7 enables waste to fall from the first horizontal plate 4 and reduces the accumulation of waste on the first horizontal plate 4. A cylinder 8 is installed on the inner top of the U-shaped frame 3. A second horizontal plate 4 is installed at the end of the output shaft of the cylinder 8. The second cross plate 9 and the inner side walls of both ends of the U-shaped frame 3 are abutted and slidably connected, so that the cylinder 8 can stably drive the second cross plate 9 to move up and down, and the bottom of the second cross plate 9 is detachably connected with multiple upper forming heating molds 10, and the multiple upper forming heating molds 10 are respectively opposite to the multiple lower forming heating molds 5. The multiple lower forming heating molds 5 are all installed on the upper end of the first cross plate 4 by screws, and the multiple upper forming heating molds 10 are all installed on the bottom of the second cross plate 9 by screws, which is convenient for disassembly and replacement of the upper forming heating molds 10 and the lower forming heating molds 5;

[0022] The side walls of the multiple upper molding and heating molds 10 are collectively sleeved with a scraper assembly, which includes multiple annular scrapers 11 slidably sleeved on the side walls of the multiple upper molding and heating molds 10, respectively. Two adjacent annular scrapers 11 are connected by a connecting rod 12, and the opposite side walls of the two outermost annular scrapers 11 are fixedly connected with a support plate 13. The connecting rod 12 and the support plate 13 are connected to the annular scrapers 11 by screws, which is convenient for installing and replacing the annular scrapers 11. The annular scrapers 11 move downward to scrape off the EVA foam shoe material overflowing from the upper molding and heating molds 10 and the lower molding and heating molds 5;

[0023] The scraper assembly is driven to move up and down by a driving assembly installed on the second transverse plate 9. The driving assembly includes a servo motor 15 installed at the upper end of the second transverse plate 9. A threaded rod 16 is installed at the end of the output shaft of the servo motor 15. The threaded rod 16 threadably penetrates one of the support plates 13. The bottom of the second transverse plate 9 is fixedly connected to a limiting rod 14. The limiting rod 14 slides through the other support plate 13. The threaded rod 16 and the limiting rod 14 work together to guide and limit the multiple annular scrapers 11 through the two support plates 13, so that the multiple annular scrapers 11 can only move up and down, and then the servo motor 15 drives the threaded rod 16 to rotate, so that the multiple annular scrapers 11 can stably move up and down;

[0024] A waste storage box 18 is provided above the workbench 1. A baffle 17 is fixedly connected to the upper end of the workbench 1, and the waste storage box 18 abuts against the front side wall of the baffle 17. Two vertical plates 19 are fixedly connected to the upper end of the workbench 1. The front side walls of the two vertical plates 19 are rotatably connected to a baffle 6 that abuts against the front side wall of the waste storage box 18. The baffle 17 and the baffle 6 work together to fix the waste storage box 18 so that the waste storage box 18 cannot move forward or backward.

[0025] The functional principle of the utility model can be explained through the following operation modes:

[0026] In the utility model, when the EVA foam shoe material production foaming device is working, the raw materials for producing EVA foam shoes are added into the lower molding heating mold 5, and the cylinder 8 is started to drive the second horizontal plate 9 to move downward until the multiple upper molding heating molds 10 and the corresponding lower molding heating molds 5 are completely closed, and the EVA material is foamed by the upper molding heating molds 10 and the lower molding heating molds 5;

[0027] When overflow occurs during the foaming process, the servo motor 15 is started to drive the threaded rod 16 to rotate, and the multiple annular scrapers 11 can be moved downward under the action of the threaded engagement to scrape off the excess material overflowing from the upper molding heating mold 10 and the lower molding heating mold 5. The scraped material can fall into the waste storage box 18 for collection. The baffle 6 is rotated so that it does not abut against the front side wall of the waste storage box 18, and the waste storage box 18 can be pulled forward, which is convenient for handling the waste and easy to operate.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An EVA foaming shoe material production foaming device, comprising a workbench (1) and a plurality of supporting legs (2), characterized in that: The upper end of the workbench (1) is fixedly connected to a U-shaped frame (3), and a first cross plate (4) is fixedly connected between the inner side walls at both ends of the U-shaped frame (3), and a plurality of lower forming heating molds (5) are detachably connected to the first cross plate (4). A cylinder (8) is installed at the inner top of the U-shaped frame (3), and a second cross plate (9) is installed at the end of the output shaft of the cylinder (8). The bottom of the second cross plate (9) is detachably connected to a plurality of upper forming heating molds (10), and the plurality of upper forming heating molds (10) are respectively opposite to the plurality of lower forming heating molds (5). The side walls of the plurality of upper forming heating molds (10) are jointly sleeved with a scraper assembly, and the scraper assembly is driven to move up and down by a driving assembly installed on the second cross plate (9). A waste storage box (18) is provided above the workbench (1).

2. The EVA foaming shoe material production foaming device according to claim 1, characterized in that: The plurality of lower forming and heating dies (5) are all mounted on the upper end of the first transverse plate (4) by means of screws, and the plurality of upper forming and heating dies (10) are all mounted on the bottom of the second transverse plate (9) by means of screws.

3. The EVA foaming shoe material production foaming device according to claim 1, characterized in that: The first transverse plate (4) is provided with a plurality of through openings (7).

4. The EVA foaming shoe material production foaming device according to claim 1, characterized in that: The scraper assembly comprises a plurality of annular scrapers (11) which are respectively slidably mounted on the side walls of a plurality of upper forming heating dies (10); two adjacent annular scrapers (11) are connected via a connecting rod (12); and opposite side walls of the two outermost annular scrapers (11) are fixedly connected to a support plate (13).

5. The EVA foaming shoe material production foaming device according to claim 4, characterized in that: The driving assembly comprises a servo motor (15) mounted on the upper end of the second transverse plate (9); a threaded rod (16) is mounted on the end of the output shaft of the servo motor (15); the threaded rod (16) is threadedly passed through one of the support plates (13); a limiting rod (14) is fixedly connected to the bottom of the second transverse plate (9); and the limiting rod (14) is slidably passed through the other support plate (13).

6. The EVA foaming shoe material production foaming device according to claim 1, characterized in that: The upper end of the workbench (1) is fixedly connected to a baffle (17), and the waste storage box (18) abuts against the front side wall of the baffle (17). The upper end of the workbench (1) is fixedly connected to two vertical plates (19), and the front side walls of the two vertical plates (19) are rotatably connected to a baffle (6) that abuts against the front side wall of the waste storage box (18).

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