EVA sole foaming production line

By introducing an automated feeding structure on the EVA foaming production line, the uneven problem caused by manual pouring is solved, the uniform laying of raw materials is achieved, and the foaming effect and safety are improved.

CN223161407UActive Publication Date: 2025-07-29DONGGUAN HONGYI NEW MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202421842206.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-01
Publication Date
2025-07-29
Estimated Expiration
2034-08-01

AI Technical Summary

Technical Problem

The existing EVA foaming production line requires manual pouring of materials, resulting in uneven distribution of raw materials, affecting the foaming effect, and posing safety hazards.

Method used

The feeding structure is adopted, including electric guide rails, transmission blocks, conical funnels and partition plates. The raw materials are automatically controlled to avoid manual operations and ensure uniform laying of raw materials.

Benefits of technology

It improves the foaming and forming rate of raw materials, reduces safety risks, and improves production efficiency and product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of EVA (Ethylene Vinyl Acetate) sole foaming, in particular to an EVA sole foaming production line which comprises an open mill and a roller, a feeding structure is arranged on the open mill and comprises an electric guide rail fixedly arranged on the inner side of the open mill, a transmission block is arranged on the electric guide rail, a connecting rod is fixedly arranged at one end of the transmission block, and the other end of the transmission block is connected with the roller. A fixing sleeve is installed on the connecting rod, a conical funnel is fixedly installed on one side of the fixing sleeve, and a plurality of partition plates are arranged at the bottom of the conical funnel. Through the arrangement of the feeding structure, a worker does not need to manually pour raw materials onto the roller, the problem of non-uniform laying cannot be caused, the foaming forming rate of the raw materials is improved, the raw materials are poured into the conical funnel, and an electric guide rail is started to drive a transmission block to move left and right; the conical funnel is driven by the transmission block to move to put the raw materials into the roller, the raw material putting speed can be controlled through the arrangement of the partition plate, and the situation that the raw materials fall too fast in the moving process of the conical funnel is avoided.
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Description

Technical Field

[0001] The utility model relates to an EVA sole foaming production line, in particular to an EVA sole foaming production line, belonging to the technical field of EVA sole foaming. Background Art

[0002] Due to its excellent physical and chemical properties, EVA (ethylene-vinyl acetate copolymer) material has been widely used in sole manufacturing. EVA material has high resilience, tensile strength, toughness, good shock absorption and buffering properties. Since EVA resin is the main raw material, it needs to be mixed with other additives (such as crosslinking agents, foaming agents, modifiers, etc.) to achieve specific hardness, elasticity and wear resistance. According to the requirements of the product, the proportion of each raw material is determined, and various raw materials are fully mixed by a stirring device to ensure uniform mixing. Preheating treatment may be required during the mixing process to improve the fluidity of the raw materials and prepare for subsequent molding.

[0003] The existing EVA foaming production line has a single structure. Personnel need to manually pour the raw materials onto the rollers of the open mill, then manually spread and place them evenly, and then start the open mill to make its temperature reach the corresponding temperature, so as to foam and mold the poured raw materials. Since the raw materials are manually placed by personnel, the distribution of the raw materials will be uneven, resulting in poor foaming effect. Moreover, it is dangerous to put raw materials when the machine is running, and the practicability is not high.

[0004] Therefore, it is urgent to improve an EVA sole foaming production line to solve the above existing problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an EVA sole foaming production line. Through the setting of the feeding structure, there is no need for personnel to manually pour the raw materials onto the rollers, which will not cause the problem of uneven laying, improve the foaming and molding rate of the raw materials, pour the raw materials into the internal of the conical funnel, start the electric guide rail to drive the transmission block to move left and right, and the conical funnel also starts to move under the drive of the transmission block to put the raw materials into the rollers. The setting of the partition plate can control the feeding speed of the raw materials and avoid the raw materials falling too fast during the movement of the conical funnel, thus resulting in uneven laying of the raw materials.

[0006] In order to achieve the above purpose, the main technical solutions adopted by the utility model include:

[0007] An EVA sole foaming production line includes an internal mixer and rollers. A feeding structure is arranged on the internal mixer. The feeding structure includes an electric guide rail fixedly installed inside the internal mixer. A transmission block is installed on the electric guide rail. One end of the transmission block is fixedly installed with a connecting rod. A fixed sleeve is installed on the connecting rod. One side of the fixed sleeve is fixedly installed with a conical funnel. A plurality of partition plates are arranged at the bottom of the conical funnel.

[0008] Preferably, a plurality of mounting holes are formed in the connecting rod. A first spring is fixedly installed inside the mounting holes. One end of the first spring is fixedly installed with a clamping block. A plurality of clamping holes for cooperating with the clamping block are formed inside the fixed sleeve.

[0009] Preferably, one end of the clamping block is set to be arc-shaped.

[0010] Preferably, a blanking frame connected to the internal mixer is installed below the rollers. The inner cavity of the blanking frame is set to be inclined.

[0011] Preferably, a plurality of fixing blocks are fixedly installed at the bottom of the internal mixer. An aggregate box is installed between the plurality of fixing blocks. A handle is fixedly installed on the front of the aggregate box.

[0012] Preferably, a sliding groove is formed in the fixing block. A slider connected to the aggregate box is movably installed inside the sliding groove.

[0013] Preferably, a fixing plate is fixedly installed on one side of the fixing block. A plug rod is movably installed on the fixing plate. One end of the plug rod is fixedly installed with a stop block that fits against the slider. A second spring connected to the fixing plate is wound around the plug rod.

[0014] The utility model has at least the following beneficial effects:

[0015] Through the setting of the feeding structure, there is no need for personnel to manually pour the raw materials onto the rollers, which will not cause the problem of uneven laying, improve the foaming molding rate of the raw materials. Pour the raw materials into the inside of the conical funnel, start the electric guide rail to drive the transmission block to move left and right, and the conical funnel also starts to move under the drive of the transmission block to put the raw materials into the rollers. The setting of the partition plates can control the feeding speed of the raw materials and prevent the raw materials from falling too fast during the movement of the conical funnel, thus avoiding uneven laying of the raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings:

[0017] Figure 1Schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 Schematic diagram of the conical funnel of the present utility model;

[0019] Figure 3 Schematic diagram of the partition plate of the present utility model;

[0020] Figure 4 Schematic diagram of the electric guide rail of the present utility model;

[0021] Figure 5 Of the present utility model Figure 4 Enlarged view at position A;

[0022] Figure 6 Of the present utility model Figure 1 Enlarged view at position B.

[0023] In the figure, 1. Banbury mixer; 2. Roller; 3. Feeding structure; 4. Electric guide rail; 5. Transmission block; 6. Connecting rod; 7. Fixed sleeve; 8. Conical funnel; 9. Partition plate; 10. Mounting hole; 11. First spring; 12. Block; 13. Card hole; 14. Blanking frame; 15. Fixed block; 16. Aggregate box; 17. Handle; 18. Slide groove; 19. Slide block; 20. Fixed plate; 21. Insert rod; 22. Stopper; 23. Second spring. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] As Figures 1-6 Shown, an embodiment of an EVA sole foaming production line provided in this embodiment.

[0026] An EVA sole foaming production line includes an open mill 1 and rollers 2. A feeding structure 3 is arranged on the open mill 1. The feeding structure 3 includes an electric guide rail 4 fixedly installed inside the open mill 1. A transmission block 5 is installed on the electric guide rail 4. One end of the transmission block 5 is fixedly installed with a connecting rod 6. A fixed sleeve 7 is installed on the connecting rod 6. One side of the fixed sleeve 7 is fixedly installed with a conical funnel 8. The bottom of the conical funnel 8 is provided with a plurality of partition plates 9. Through the setting of the feeding structure 3, there is no need for personnel to manually pour raw materials onto the rollers 2, which will not cause the problem of uneven laying, improve the foaming molding rate of raw materials, pour the raw materials into the inside of the conical funnel 8, start the electric guide rail 4 to drive the transmission block 5 to move left and right, and the conical funnel 8 also starts to move under the drive of the transmission block 5 to put raw materials into the rollers 2. The setting of the partition plates 9 can control the feeding speed of the raw materials and prevent the raw materials from falling too fast during the movement of the conical funnel 8, resulting in uneven laying of the raw materials.

[0027] As Figure 5 shown, a plurality of mounting holes 10 are opened on the connecting rod 6. A first spring 11 is fixedly installed inside the mounting holes 10. One end of the first spring 11 is fixedly installed with a clamping block 12. A plurality of clamping holes 13 are opened inside the fixed sleeve 7 for cooperating with the clamping block 12. Through the setting of the mounting holes 10, the first spring 11, the clamping block 12 and the clamping holes 13, the clamping block 12 is clamped with the clamping holes 13 under the elastic action of the first spring 11, and the conical funnel 8 can be fixed on the connecting rod 6. When pulling the partition plate 9, the clamping block 12 is squeezed and retracted into the inside of the mounting holes 10. After the clamping block 12 disengages from the inside of the clamping holes 13, the conical funnel 8 can be disassembled to clean the remaining raw materials inside it.

[0028] As Figure 5 shown, one end of the clamping block 12 is set to be arc-shaped. Through the setting that one end of the clamping block 12 is arc-shaped, the friction force at one end of the clamping block 12 can be reduced, making it easier for the clamping block 12 to slide inside the fixed sleeve 7, thus facilitating the disassembly and installation of the conical funnel 8.

[0029] As Figure 1 shown, a blanking frame 14 connected to the open mill 1 is installed below the rollers 2. The inner cavity of the blanking frame 14 is set to be inclined. Through the setting of the blanking frame 14, the raw materials dropped when the rollers 2 rotate can be collected. The inclined setting can make the raw materials slide uniformly to the collection point for collection, preventing the raw materials from scattering on the blanking frame 14 after falling, thereby increasing the collection time of the raw materials.

[0030] As Figure 6As shown in the figure, a plurality of fixing blocks 15 are fixedly installed at the bottom of the open mill 1. An aggregate box 16 is installed between the plurality of fixing blocks 15. A handle 17 is fixedly installed on the front surface of the aggregate box 16. Through the setting of the fixing blocks 15, the aggregate box 16 and the handle 17, the raw materials slipping from the blanking frame 14 uniformly fall into the aggregate box 16. The aggregate box 16 is pulled out through the handle 17, and the raw materials falling inside it are poured into the conical funnel 8 again, avoiding waste of raw materials and thus increasing production costs.

[0031] As Figure 6 shown in the figure, a chute 18 is opened on the fixing block 15. A slider 19 connected to the aggregate box 16 is movably installed inside the chute 18. Through the setting of the chute 18 and the slider 19, the friction between the aggregate box 16 and the fixing block 15 can be reduced, making it easier for the aggregate box 16 to slide on the fixing block 15, thus facilitating the pulling and pushing of the aggregate box 16.

[0032] As Figure 6 shown in the figure, a fixing plate 20 is fixedly installed on one side of the fixing block 15. A plug rod 21 is movably installed on the fixing plate 20. A stop block 22 that fits with the slider 19 is fixedly installed at one end of the plug rod 21. A second spring 23 connected to the fixing plate 20 is wound around the plug rod 21. Through the setting of the fixing plate 20, the plug rod 21, the stop block 22 and the second spring 23, when the plurality of plug rods 21 are pulled outwards and the aggregate box 16 is pushed into the inside of the chute 18, then the plug rod 21 is released and it pushes the stop block 22 to move and fit with the slider 19 under the elastic action of the second spring 23, which can limit the aggregate box 16 and prevent the aggregate box 16 from sliding off and causing the raw materials inside it to fall out.

[0033] In this embodiment, as Figures 1-6 shown in the figure, the working process of an EVA sole foaming production line provided in this embodiment is as follows:

[0034] Pour the raw materials into the inside of the conical funnel 8, start the electric guide rail 4 to drive the transmission block 5 to move left and right. The conical funnel 8 also starts to move under the drive of the transmission block 5 to put the raw materials into the roller 2. The setting of the partition plate 9 can control the feeding speed of the raw materials and prevent the raw materials from falling too fast during the movement of the conical funnel 8, resulting in uneven laying of the raw materials.

[0035] In summary, in this embodiment, for an EVA sole foaming production line according to this embodiment, through the settings of the mounting holes 10, the first springs 11, the clamping blocks 12 and the clamping holes 13, the clamping blocks 12 are engaged with the clamping holes 13 under the elastic action of the first springs 11, and the conical funnel 8 can be fixed on the connecting rod 6. When the partition plate 9 is pulled, the clamping blocks 12 are squeezed and contracted into the interior of the mounting holes 10. After the clamping blocks 12 are disengaged from the interior of the clamping holes 13, the conical funnel 8 can be disassembled to clean the remaining raw materials inside. Through the setting that one end of the clamping block 12 is arc-shaped, the friction force at one end of the clamping block 12 can be reduced, making it easier for the clamping block 12 to slide inside the fixed sleeve 7, thus facilitating the disassembly and installation of the conical funnel 8. Through the setting of the blanking frame 14, the raw materials dropped when the roller 2 rotates can be collected. The inclined shape allows the raw materials to slide uniformly to the collection point for collection, preventing the raw materials from scattering on the blanking frame 14 after falling, thereby increasing the time for collecting the raw materials. Through the settings of the fixing blocks 15, the aggregate box 16 and the handle 17, the raw materials sliding from the blanking frame 14 uniformly fall into the aggregate box 16. By pulling out the aggregate box 16 with the handle 17, the raw materials dropped inside can be poured back into the conical funnel 8 again, avoiding waste of raw materials and increasing production costs. Through the settings of the sliding grooves 18 and the sliding blocks 19, the friction force between the aggregate box 16 and the fixing blocks 15 can be reduced, making it easier for the aggregate box 16 to slide on the fixing blocks 15, thus facilitating the pulling and pushing of the aggregate box 16. Through the settings of the fixing plate 20, the insertion rods 21, the blocking blocks 22 and the second springs 23, when the plurality of insertion rods 21 are pulled outwards and the aggregate box 16 is pushed into the interior of the sliding groove 18, then the insertion rods 21 are released and they push the blocking blocks 22 to move and fit with the sliding blocks 19 under the elastic action of the second springs 23, which can limit the aggregate box 16 and prevent the aggregate box 16 from sliding off and causing the raw materials inside to fall out.

[0036] As used in the specification and claims, certain terms are used to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not use the difference in name as a way to distinguish components, but use the difference in function of the components as the criterion for distinction. As mentioned throughout the specification and claims, "comprising" is an open-ended term and should be interpreted as "including but not limited to". "Substantially" means within an acceptable error range. Those skilled in the art can solve technical problems within a certain error range and basically achieve the technical effect.

[0037] It should be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a commodity or system comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such commodity or system. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the commodity or system comprising the element.

[0038] The above description shows and describes several preferred embodiments of the present invention. However, as previously mentioned, it should be understood that the present invention is not limited to the forms disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be altered within the scope of the inventive concept described herein through the above teachings or the techniques or knowledge in the relevant field. Any alterations and changes made by those skilled in the art without departing from the spirit and scope of the present invention shall fall within the protection scope of the appended claims of the present invention.

Claims

1. An EVA sole foaming production line, comprising an open mill (1) and rollers (2), characterized in that: The internal mixer (1) is provided with a feeding structure (3). The feeding structure (3) includes an electric guide rail (4) fixedly installed inside the internal mixer (1). A transmission block (5) is installed on the electric guide rail (4). One end of the transmission block (5) is fixedly installed with a connecting rod (6). A fixed sleeve (7) is installed on the connecting rod (6). One side of the fixed sleeve (7) is fixedly installed with a conical funnel (8). A plurality of partition plates (9) are arranged at the bottom of the conical funnel (8).

2. The EVA sole foaming production line according to claim 1, characterized in that: A plurality of mounting holes (10) are formed in the connecting rod (6). A first spring (11) is fixedly installed inside the mounting hole (10). One end of the first spring (11) is fixedly installed with a clamping block (12). A plurality of clamping holes (13) for cooperating with the clamping block (12) are formed inside the fixed sleeve (7).

3. An EVA sole foaming production line according to claim 2, characterized in that: One end of the clamping block (12) is arc-shaped.

4. An EVA sole foaming production line according to claim 1, characterized in that: A blanking frame (14) connected to the internal mixer (1) is installed below the roller (2). The inner cavity of the blanking frame (14) is inclined.

5. An EVA sole foaming production line according to claim 1, characterized in that: A plurality of fixing blocks (15) are fixedly installed at the bottom of the internal mixer (1). An aggregate box (16) is installed between the plurality of fixing blocks (15). A handle (17) is fixedly installed on the front surface of the aggregate box (16).

6. An EVA sole foaming production line according to claim 5, characterized in that: A sliding groove (18) is formed in the fixing block (15). A slider (19) connected to the aggregate box (16) is movably installed inside the sliding groove (18).

7. An EVA sole foaming production line according to claim 6, characterized in that: A fixing plate (20) is fixedly installed on one side of the fixing block (15). A plug rod (21) is movably installed on the fixing plate (20). One end of the plug rod (21) is fixedly installed with a stop block (22) that fits against the slider (19). A second spring (23) connected to the fixing plate (20) is wound around the plug rod (21).