PVC injection shoe linkage mold

Abstract

The application discloses a PVC injection shoe linkage mold, which comprises a base, a foot mold is arranged in the base, a limiting plate is arranged at the bottom of the foot mold, a positioning sliding plate is arranged on the lower surface of the limiting plate, the bottom of the positioning sliding plate is slidably connected with the base, a push plate is arranged on the rear side of the positioning sliding plate, the upper surface of the base is provided with two symmetrical side molds, the side molds are provided with mold cavities corresponding to the foot mold, the side molds are hingedly connected with the push plate, the rear side of the push plate is provided with a linkage structure, and the upper surface of the side plate is provided with an upper mold; the two side molds are hingedly connected with the push plate, the rear sides of the push plate and the side molds are connected through the linkage structure, the driving block of the upper mold is in contact with the linkage structure, a linkage state is formed, the two side molds can be opened by the upper mold driving the driving block to push the linkage structure when the mold is opened, the mold opening operation is simple and convenient, the mold opening efficiency is improved, and the upper mold and the two side molds can be fixed on the lower mold through the arrangement of the locking group, so that the pressure in the mold is maintained.

Description

Technical Field

[0001] This application relates to the field of PVC injection molded shoe production technology, specifically a PVC injection molded shoe linkage mold. Background Technology

[0002] PVC injection molded shoes are footwear products made by directly injecting molten polyvinyl chloride (PVC) material into a mold through an injection molding process, completing the sole molding and bonding it to the upper in one step. Their core characteristics are high efficiency, low cost, waterproofing, and durability, making them widely used in rain boots, safety shoes, casual shoes, and other fields.

[0003] Existing PVC injection molds for shoes require unlocking and opening the upper mold first, followed by unlocking the two side molds, before the molded shoes can be removed. This method is cumbersome, time-consuming, and labor-intensive. Therefore, this application proposes a PVC injection mold for shoes with a linkage mechanism to solve this problem. Summary of the Invention

[0004] The technical problem to be solved by this application is to overcome the existing defects and provide a PVC injection mold for shoes that can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this application provides the following technical solution: a PVC injection molded shoe linkage mold, comprising a base, a foot mold disposed inside the base, a limit plate disposed at the bottom of the foot mold, a positioning slide plate disposed on the lower surface of the limit plate, the bottom of the positioning slide plate being slidably connected to the base, a push plate disposed on the rear side of the positioning slide plate, two symmetrical side molds disposed on the upper surface of the base, each side mold having a cavity corresponding to the foot mold, the side molds being hinged to the push plate, a linkage structure disposed on the rear side of the push plate, an upper mold disposed on the upper surface of the side plate, one side of the upper mold being fixed to the base by a locking assembly, the other side of the upper mold being hinged to a mounting frame by two corner plates, the mounting frame being fixed to the rear side of the base, and the two corner plates being in contact with the linkage structure by a driving block.

[0006] Furthermore, the linkage structure includes a baffle, a push rod, a spring, a fixed plate, and a limiting linkage rod. The rear side of the push plate is connected to the baffle through two push rods, and the two push rods slide through the fixed plate and are slidably connected to the fixed plate. A spring is sleeved on the push rod, and the spring is located between the fixed plate and the baffle. Two limiting linkage rods are hinged above the fixed plate, and the two limiting linkage rods are respectively hinged to two side molds.

[0007] Furthermore, the two limiting linkage rods are V-shaped.

[0008] Furthermore, the locking assembly includes a limiting screw, a limiting block, a locking frame, a handwheel nut, and a plug. Plugs are provided on the two side molds, and limiting blocks are provided above the two plugs. The limiting blocks have slots. Locking frames are provided on the outer sides of the two plugs. The bottom of the locking frame is hinged to the base. A limiting screw is fixed to the upper surface of the locking frame. The limiting screw is placed in the slot of the limiting block, and a handwheel nut is threaded onto the outer side of the limiting screw.

[0009] Furthermore, the locking frame is in the shape of an inverted "U", and a circular plate is provided at the bottom of the locking frame.

[0010] Furthermore, an opening handle is provided on the side of the upper mold near the locking assembly.

[0011] Compared with the prior art: This application uses two side molds hinged to the push plate, and the push plate and the rear side of the side molds are connected by a linkage structure. The drive block of the upper mold is in contact with the linkage structure to form a linkage state. When the mold is opened, the upper mold drives the drive block to push the linkage structure to open the two side molds. The mold opening operation is simple and convenient, improving the mold opening efficiency. In addition, the locking group can fix the upper mold and the two side molds on the lower mold to maintain the internal pressure. Attached Figure Description

[0012] Figure 1 This is a first structural schematic diagram of the present application;

[0013] Figure 2 This is a front sectional view of this application;

[0014] Figure 3 This is a schematic diagram of the second structure of this application;

[0015] Figure 4 for Figure 1 A magnified view of part A in the image.

[0016] In the diagram: 1. Base, 2. Foot mold, 3. Limiting plate, 4. Positioning slide plate, 5. Push plate, 6. Linkage structure, 7. Baffle, 8. Push rod, 9. Spring, 10. Fixing plate, 11. Limiting linkage rod, 12. Side mold, 13. Upper mold, 14. Locking assembly, 15. Limiting screw, 16. Limiting block, 17. Locking bracket, 18. Handwheel nut, 19. Insert block, 20. Corner plate, 21. Mounting bracket, 22. Drive block, 23. Mold opening handle. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application (for ease of description and understanding, hereinafter referred to as...), Figure 2(The above is described above). All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0018] Please see Figure 1-4 This application provides a technical solution for a PVC injection molded shoe linkage mold: a PVC injection molded shoe linkage mold includes a base 1, a foot mold 2 is provided inside the base 1, a limit plate 3 is provided at the bottom of the foot mold 2, a positioning slide plate 4 is provided on the lower surface of the limit plate 3, the bottom of the positioning slide plate 4 is slidably connected to the base 1, and a push plate 5 is provided on the rear side of the positioning slide plate 4.

[0019] The base 1 has a cavity inside that accommodates the foot mold 2. The bottom of the cavity has a groove that facilitates the sliding of the positioning slide plate 4. The upper surface of the push plate 5 is hinged to the two side molds 12.

[0020] The upper surface of the base 1 is provided with two symmetrical side molds 12. The side molds 12 have mold cavities corresponding to the foot molds 2. The side molds 12 are hinged to the push plate 5. The push plate 5 has a linkage structure 6 on its rear side.

[0021] Furthermore, the linkage structure 6 includes a baffle 7, a push rod 8, a spring 9, a fixed plate 10, and a limiting linkage rod 11. The rear side of the push plate 5 is connected to the baffle 7 through two push rods 8, and the two push rods 8 slide through the fixed plate 10 and are slidably connected to the fixed plate 10. The spring 9 is sleeved on the push rod 8, and the spring 9 is located between the fixed plate 10 and the baffle 7. Two limiting linkage rods 11 are hinged above the fixed plate 10, and the two limiting linkage rods 11 are respectively hinged to the two side molds 12.

[0022] The two limiting linkage rods 11 are hinged to the side mold 12 at the opposite position to the hinged position between the side mold 12 and the push plate 5. The limiting linkage rods 11 can limit the side mold 12. With the setting of the spring 9, when the mold is closed, the baffle 7 can be pushed away from the fixed plate 10, thereby driving the push rod 8, the push plate 5, the positioning slide plate 4 and the side mold 12 to move, so that the two side molds 12 are closed together.

[0023] Furthermore, the two limit linkage rods 11 are in a "V" shape.

[0024] The upper surface of the side plate is provided with an upper mold 13. One side of the upper mold 13 is fixed to the base 1 by a locking assembly 14. The other side of the upper mold 13 is hinged to the mounting frame 21 by two corner plates 20. The mounting frame 21 is fixed to the rear side of the base 1. The two corner plates 20 are in contact with the linkage structure 6 through a drive block 22.

[0025] During mold opening, the upper mold 13 drives the corner plate 20 and the drive block 22 to rotate at the hinge point of the mounting frame 21, causing the drive block 22 to push the baffle 7, push rod 8, push plate 5, positioning slide plate 4 and foot mold 2 to move along the slide groove at the bottom of the base 1. At the same time, the push plate 5 drives the two side molds 12 to rotate at the hinge point between the side molds 12 and the limit linkage rod 11, thereby realizing the mold opening operation of the side molds 12.

[0026] Furthermore, the locking assembly 14 includes a limiting screw 15, a limiting block 16, a locking frame 17, a handwheel nut 18, and an insert block 19. Insert blocks 19 are provided on the two side molds 12, and limiting blocks 16 are provided above the two insert blocks 19. The limiting blocks 16 have slots. The locking frame 17 is provided on the outside of the two insert blocks 19. The bottom of the locking frame 17 is hinged to the base 1. The limiting screw 15 is fixed on the upper surface of the locking frame 17. The limiting screw 15 is placed in the slot of the limiting block 16. The handwheel nut 18 is threadedly connected to the outside of the limiting screw 15.

[0027] When closing the mold, flip the handwheel nut 18 upwards to fix the locking bracket 17 to the two insert blocks 19, and the limiting screw 15 is locked in the slot of the limiting block 16. Then tighten the handwheel nut 18. When opening the mold, reverse the above actions.

[0028] Furthermore, the locking frame 17 is inverted "U" shape, and a circular plate is provided at the bottom of the locking frame 17.

[0029] When in use: When opening the mold, rotate the handwheel nut 18 to move the handwheel nut 18 upward away from the limit block 16. Then hold the handwheel nut 18 and flip it downward to separate the locking frame 17 from the two inserts 19 and the limit screw 15 from the limit block 16.

[0030] Subsequently, the hand-held mold opening handle 23 is lifted upwards, and the upper mold 13 drives the corner plate 20 and the drive block 22 to rotate at the hinge point of the mounting bracket 21. This causes the drive block 22 to push the baffle 7, push rod 8, push plate 5, positioning slide plate 4 and foot mold 2 to move along the slide groove at the bottom of the base 1. The baffle 7 compresses the spring 9, and at the same time, the push plate 5 drives the two side molds 12 to rotate at the hinge point between the side molds 12 and the limit linkage rod 11, thereby realizing the mold opening operation of the side molds 12.

[0031] When the mold is closed, the limiting plate 3 on the foot mold 2 is placed inside the positioning slide plate 4. Then, the mold opening handle 23 is held by hand, so that the upper mold 13 drives the corner plate 20 and the drive block 22 to rotate at the hinge point of the mounting bracket 21. The upper mold 13 is placed on the two side molds 12. At the same time, the spring 9 pushes the baffle 7 away from the fixed plate 10, thereby driving the push rod 8, the push plate 5, the positioning slide plate 4 and the side molds 12 to move, so that the two side molds 12 are closed together.

[0032] Then, flip the handwheel nut 18 upwards to fix the locking bracket 17 to the two insert blocks 19. The limiting screw 15 is locked in the slot of the limiting block 16. Then tighten the handwheel nut 18 to complete the fixing.

[0033] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A PVC injection molded shoe linkage mold, characterized in that: The base (1) includes a foot mold (2) inside the base (1). A limiting plate (3) is provided at the bottom of the foot mold (2). A positioning slide plate (4) is provided on the lower surface of the limiting plate (3). The bottom of the positioning slide plate (4) is slidably connected to the base (1). A push plate (5) is provided on the rear side of the positioning slide plate (4). Two symmetrical side molds (12) are provided on the upper surface of the base (1). The side molds (12) have cavities corresponding to the foot mold (2). The side molds (12) are hinged to the base (1). On the push plate (5), a linkage structure (6) is provided on the rear side of the push plate (5), and an upper mold (13) is provided on the upper surface of the side plate. One side of the upper mold (13) is fixed to the base (12) by the locking group (14), and the other side of the upper mold (13) is hinged to the mounting frame (21) by two corner plates (20). The mounting frame (21) is fixed to the rear side of the base (1), and the two corner plates (20) are in contact with the linkage structure (6) through the drive block (22).

2. The PVC injection molded shoe linkage mold according to claim 1, characterized in that: The linkage structure (6) includes a baffle (7), a push rod (8), a spring (9), a fixed plate (10), and a limiting linkage rod (11). The back side of the push plate (5) is connected to the baffle (7) through two push rods (8), and the two push rods (8) slide through the fixed plate (10) and are slidably connected to the fixed plate (10). The push rod (8) is fitted with a spring (9), and the spring (9) is located between the fixed plate (10) and the baffle (7). Two limiting linkage rods (11) are hinged above the fixed plate (10), and the two limiting linkage rods (11) are respectively hinged to the two side molds (12).

3. The PVC injection molded shoe linkage mold according to claim 2, characterized in that: The two limiting linkage rods (11) are in the shape of a "V".

4. The PVC injection molded shoe linkage mold according to claim 1, characterized in that: The locking assembly (14) includes a limiting screw (15), a limiting block (16), a locking frame (17), a handwheel nut (18), and a plug (19). The two side molds (12) are provided with plugs (19), and the two plugs (19) are provided with limiting blocks (16) above them. The limiting blocks (16) are provided with slots. The two plugs (19) are provided with locking frames (17) on their outer sides. The bottom of the locking frames (17) is hinged to the base (1). The upper surface of the locking frames (17) is fixed with a limiting screw (15). The limiting screw (15) is placed in the slot of the limiting block (16). The outer side of the limiting screw (15) is threaded with a handwheel nut (18).

5. A PVC injection molded shoe linkage mold according to claim 4, characterized in that: The locking frame (17) is inverted "U" shape, and a circular plate is provided at the bottom of the locking frame (17).

6. The PVC injection molded shoe linkage mold according to claim 1, characterized in that: The upper mold (13) is provided with a mold opening handle (23) on the side near the locking assembly (14).

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