Zipper forming die

Abstract

The utility model relates to the technical field of zipper machining dies, and discloses a zipper forming die which comprises a lower die and an upper die, a lower die plate is fixedly installed at the bottom of the lower die, an upper die plate is fixedly installed at the top of the upper die, and the top end face of the upper die plate is fixedly connected with a hydraulic telescopic rod of a hydraulic unit. The lower mold comprises a mold base fixedly installed on the top end face of a lower mold plate, and a first forming piece is fixedly arranged in the mold base. The lower die further comprises a mounting rod rotationally arranged in the die holder, a second forming part and a third forming part are arranged on the outer side of the mounting rod, and the third forming part comprises a third die block slidably connected into the die holder. According to the zipper forming die, the third forming piece is additionally arranged between the second forming piece and the first forming piece, the forming number of zipper teeth can be adjusted, and therefore the forming length of a zipper can be conveniently adjusted according to the actual machining requirement, and the universality of the die is improved.

Description

Technical Field

[0001] This utility model relates to the field of zipper processing mold technology, specifically a zipper forming mold. Background Technology

[0002] Zippers are connectors that use continuously arranged teeth to join or separate items. They are now widely used in clothing, bags, tents, etc. Zippers mainly include metal zippers and plastic zippers. Plastic zippers are generally formed by injection molding.

[0003] Existing plastic zipper molding molds generally consist of upper and lower molds. Molten plastic is injected into the mold by an injection molding machine and cooled to form the zipper. Then, the plastic zipper teeth are engaged and fixed with the fabric tape by hot pressing or ultrasonic welding to ensure uniform spacing and tight engagement. Some existing zipper injection molds also improve the cooling efficiency of the plastic by adding heat dissipation units, which is conducive to the rapid forming of the zipper. Alternatively, they can add positioning structures to prevent misalignment of the injection mold during forming, thus ensuring the uniform shape of the zipper and improving the quality of the finished product.

[0004] However, most zipper forming molds on the market still have some shortcomings in use. For example, the forming length of the zipper teeth in existing zipper forming molds is mostly fixed, which makes it inconvenient to adjust the forming length of the zipper teeth according to the required zipper length. This results in low versatility and certain defects in use. Therefore, we propose a zipper forming mold to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a zipper forming mold to solve the problem mentioned in the background art that the forming length of the zipper teeth in existing zipper forming molds is mostly fixed, which makes it inconvenient to adjust the forming length of the zipper teeth according to the required zipper length.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a zipper forming mold, comprising a lower mold and an upper mold, wherein a lower template is fixedly installed at the bottom of the lower mold, and an upper template is fixedly installed at the top of the upper mold, and the top surface of the upper template is fixedly connected to the hydraulic telescopic rod of a hydraulic unit; the lower mold includes a mold base fixedly installed at the top surface of the lower template, and a first forming component is fixedly disposed inside the mold base;

[0007] The lower mold also includes a mounting rod rotatably disposed inside the mold base, and a second molding component and a third molding component are disposed on the outer side of the mounting rod.

[0008] As a preferred embodiment of this utility model, the top surface of the lower template is evenly distributed with guide rods, and the upper template is fixedly provided with a sleeve structure that cooperates with the guide rods. The guide rods are slidably connected to the upper template through the sleeve structure and play a positioning role for the upper template.

[0009] As a preferred embodiment of this utility model, one end of the mounting rod is rotatably connected to the first molded part through a bearing structure, and the other end of the mounting rod is rotatably connected to the mold base through a bearing structure.

[0010] As a preferred technical solution of this utility model, the first molding part includes a first module fixedly disposed inside the mold base, and a first molding groove and a chain tooth molding groove are provided on the side end face of the first module facing the upper mold, and the chain tooth molding groove is disposed on the side of the first molding groove close to the third molding part.

[0011] As a preferred embodiment of the present invention, the second molding component includes a second module slidably connected inside the mold base, and the top surface of the second module is provided with a second molding groove.

[0012] As a preferred embodiment of this utility model, the outer surface of the mounting rod is provided with a convex thread structure, and the interior of the second module is provided with a threaded hole that mates with the mounting rod.

[0013] As a preferred technical solution of this utility model, the third molding part includes a third module that is slidably connected inside the mold base, and the third module has an installation groove on one end face facing the mounting rod, and the cross section of the installation groove about the axial direction of the mounting rod is U-shaped.

[0014] As a preferred technical solution of this utility model, the third module is disposed between the second module and the first module, and the top surface of the third module is also provided with a chain tooth forming groove.

[0015] As a preferred technical solution of this utility model, the lower mold further includes a positioning block and a connecting groove. The positioning block is fixedly connected to the side end face of the second module and the third module facing the first module. The connecting groove that cooperates with the positioning block is opened on the side end face of the first module and the third module facing the second module, and the side end face of the connecting groove is inclined.

[0016] As a preferred embodiment of this utility model, the upper mold and the lower mold have the same structure, and the upper mold and the lower mold are symmetrically arranged about the XY plane.

[0017] Compared with the prior art, the beneficial effects of this utility model are: the zipper forming mold can adjust the number of zipper teeth by adding or removing a third forming part between the second forming part and the first forming part, thereby facilitating the adjustment of the forming length of the zipper according to actual processing needs and improving the versatility of the mold;

[0018] 1. The tooth forming groove, the first forming groove and the second forming groove are used to form the zipper teeth and the upper and lower stop parts respectively. By inserting the third forming part into the mold base, the third module is located between the second module and the first module, which can increase the number of zipper teeth formed, thereby increasing the forming length of the zipper.

[0019] 2. Positioning blocks are fixedly connected to the end faces of the second and third modules facing the first module. Simultaneously, connecting grooves that mate with the positioning blocks are formed on the end faces of the first and third modules facing the second module. When the third molded part is inserted between the second and first molded parts or pulled out from between them, rotating the mounting rod moves the second module towards the first module, thereby pressing the third molded part between the second and first molded parts. Furthermore, due to the inclined setting of one end face of the connecting groove, when the positioning block is inserted into the connecting groove, the positioning block presses the third module through the connecting groove, limiting and fixing the third module. This improves the positioning and fit between the third molded part and the first and second molded parts, maintaining accurate positioning of the chain teeth. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is an exploded structural diagram of the second and third molded parts of this utility model;

[0022] Figure 3 This is a schematic diagram of the connection state between the second and third molded parts of this utility model;

[0023] Figure 4 This is a schematic diagram of the overall structure of the third molded part in this utility model;

[0024] Figure 5 This is a schematic diagram of the cross-sectional structure of the first molded part of this utility model.

[0025] In the diagram: 100, lower mold; 110, mold base; 120, mounting rod; 130, first forming part; 131, first module; 132, first forming groove; 133, chain tooth forming groove; 140, second forming part; 141, second module; 142, threaded hole; 143, second forming groove; 150, third forming part; 151, third module; 152, mounting groove; 160, positioning block; 170, connecting groove; 180, feed port; 200, upper mold; 3, lower template; 4, upper template; 500, hydraulic unit; 6, guide rod. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5 This utility model provides a technical solution: a zipper forming mold, including a lower mold 100 and an upper mold 200. A lower template 3 is fixedly installed at the bottom of the lower mold 100, and an upper template 4 is fixedly installed at the top of the upper mold 200. The top surface of the upper template 4 is fixedly connected to the hydraulic telescopic rod of the hydraulic unit 500. Specifically, as shown... Figure 1 As shown, the upper mold 200 and the lower mold 100 have the same structure, and the upper mold 200 and the lower mold 100 are symmetrically arranged about the XY direction plane. The upper mold 200 is driven to move in the Z-axis direction by the hydraulic unit 500 to open and close the upper mold 200 and the lower mold 100.

[0028] Furthermore, guide rods 6 are evenly distributed on the top surface of the lower template 3, and a sleeve structure that cooperates with the guide rods 6 is fixedly installed inside the upper template 4. The guide rods 6 are slidably connected to the upper template 4 through the sleeve structure. The guide rods 6 play a guiding and positioning role for the upper template 4 and the upper mold 200, making the movement of the upper mold 200 more stable and improving the mold closing accuracy of the lower mold 100 and the upper mold 200.

[0029] Specific examples Figure 2 As shown, the lower mold 100 includes a mold base 110 fixedly installed on the top surface of the lower template 3, and a first molding component 130 is fixedly disposed inside the mold base 110. The lower mold 100 also includes a mounting rod 120 rotatably disposed inside the mold base 110, and a second molding component 140 and a third molding component 150 are disposed on the outer side of the mounting rod 120. Figure 3 and Figure 4As shown, one end of the mounting rod 120 is rotatably connected to the first molded part 130 through a bearing structure, and the other end of the mounting rod 120 is rotatably connected to the mold base 110 through a bearing structure. The outer surface of the mounting rod 120 is provided with a protruding thread structure. Since the second module 141 is slidably connected inside the mold base 110, and the interior of the second module 141 is provided with a threaded hole 142 that mates with the mounting rod 120, the movement of the second molded part 140 inside the mold base 110 can be controlled by rotating the mounting rod 120.

[0030] Specific examples Figure 4 As shown, the first molding part 130 includes a first module 131 fixedly disposed inside the mold base 110, and a first molding groove 132 and a chain tooth molding groove 133 are provided on the side end face of the first module 131 facing the upper mold 200. The chain tooth molding groove 133 is disposed on the side of the first molding groove 132 close to the third molding part 150. Meanwhile, a second molding groove 143 is provided on the top surface of the second module 141. Plastic particles heated to a molten state are injected into the chain tooth molding groove 133, the first molding groove 132 and the second molding groove 143 through the injection molding mechanism to form the chain teeth of the zipper and the upper and lower stop parts respectively.

[0031] Furthermore, the third molding component 150 includes a third module 151 slidably connected inside the mold base 110, and the top surface of the third module 151 also has a chain tooth forming groove 133. Simultaneously, the end face of the third module 151 facing the mounting rod 120 has a mounting groove 152, and the cross-section of the mounting groove 152 about the axial direction of the mounting rod 120 is U-shaped. Figure 2 and Figure 4 As shown, by inserting the third molding part 150 into the interior of the mold base 110, the third module 151 is located between the second module 141 and the first module 131, which can increase the number of zipper teeth formed, thereby increasing the forming length of the zipper.

[0032] Furthermore, the lower mold 100 also includes a positioning block 160 and a connecting groove 170, specifically as follows: Figure 4As shown, positioning blocks 160 are fixedly connected to the end faces of the second module 141 and the third module 151 facing the first module 131. Connecting grooves 170 that cooperate with positioning blocks 160 are opened on the end faces of the first module 131 and the third module 151 facing the second module 141. The end face of the connecting groove 170 is inclined. When the third molding part 150 is inserted between the second molding part 140 and the first molding part 130 or pulled out from between the second molding part 140 and the first molding part 130, the mounting rod 120 is rotated to move the second module 141 toward the first module 131, thereby pressing the third molding part 150 between the second molding part 140 and the first molding part 130. At the same time, the positioning block 160 is inserted into the connecting groove 170 to limit and fix the third molding part 150.

[0033] Specific examples Figure 5 As shown, the outer end faces of the first molding part 130, the second molding part 140 and the third molding part 150 are all uniformly provided with inlet ports 180 along the chain tooth distribution direction. Through the inlet ports 180, injection molding raw materials can be uniformly fed into the chain tooth forming groove 133, the first forming groove 132 and the second forming groove 143.

[0034] The working principle of this utility model is as follows: When using this zipper forming mold, the hydraulic unit 500 drives the upper mold 200 to move in the Z-axis direction, thereby opening or closing the upper mold 200 and the lower mold 100. Specifically, as shown below... Figure 1 and Figure 5 As shown, the upper mold 200 and the lower mold 100 have the same structure. The injection molding mechanism injects plastic raw material heated to a molten state into the feed port 180, so that the molten plastic raw material flows evenly into the chain tooth forming groove 133, the first forming groove 132 and the second forming groove 143 through the feed port 180, thereby forming the chain teeth and the upper and lower stop parts of the zipper respectively.

[0035] Specific examples Figure 2 and Figure 4 As shown, the second molding part 140 is slidably disposed inside the mold base 110. By rotating the mounting rod 120, the second molding part 140 is separated from the first molding part 130, allowing the third molding part 150 to be inserted into the mold base 110. The third module 151 is positioned between the second module 141 and the first module 131. By rotating the mounting rod 120 in the opposite direction, the second module 141 is moved toward the first module 131, thereby pressing the third molding part 150 between the second molding part 140 and the first molding part 131. At the same time, the positioning block 160 is inserted into the connecting groove 170 to limit and fix the third molding part 150, thereby increasing the number of zipper teeth formed and thus increasing the forming length of the zipper.

[0036] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A slider forming mold comprising a lower mold (100) and an upper mold (200), characterized by: The lower mold (100) is fixedly installed with a lower template (3) at the bottom, and the upper mold (200) is fixedly installed with an upper template (4) at the top. The top surface of the upper template (4) is fixedly connected to the hydraulic telescopic rod of the hydraulic unit (500). The lower mold (100) includes a mold base (110) fixedly installed on the top surface of the lower template (3), and a first molding part (130) is fixedly installed inside the mold base (110). The lower mold (100) also includes a mounting rod (120) rotatably disposed inside the mold base (110), and a second molding part (140) and a third molding part (150) are disposed on the outside of the mounting rod (120).

2. A slider for a fastener chain as defined in claim 1, wherein: The top surface of the lower template (3) is evenly distributed with guide rods (6), and the upper template (4) is fixedly provided with a sleeve structure that cooperates with the guide rods (6). The guide rods (6) are slidably connected to the upper template (4) through the sleeve structure and play a positioning role for the upper template (4).

3. A slider forming mold according to claim 2, wherein: One end of the mounting rod (120) is rotatably connected to the first molded part (130) through a bearing structure, and the other end of the mounting rod (120) is rotatably connected to the mold base (110) through a bearing structure.

4. A slider forming mold according to claim 3, wherein: The first molded part (130) includes a first module (131) fixedly disposed inside the mold base (110), and a first molding groove (132) and a chain tooth molding groove (133) are provided on the side end face of the first module (131) facing the upper mold (200), and the chain tooth molding groove (133) is disposed on the side of the first molding groove (132) close to the third molded part (150).

5. A slider forming mold according to claim 4, wherein: The second molded part (140) includes a second module (141) slidably connected inside the mold base (110), and the top surface of the second module (141) is provided with a second molding groove (143).

6. A slider forming mold according to claim 5, wherein: The outer surface of the mounting rod (120) is provided with a convex thread structure, and the interior of the second module (141) is provided with a threaded hole (142) that mates with the mounting rod (120).

7. A slider forming mold according to claim 6, wherein: The third molding part (150) includes a third module (151) slidably connected inside the mold base (110), and the third module (151) has an installation groove (152) on one end face facing the mounting rod (120), and the installation groove (152) has a "U" shaped cross section about the axial direction of the mounting rod (120).

8. A slider forming mold according to claim 7, wherein: The third module (151) is located between the second module (141) and the first module (131), and the top surface of the third module (151) is also provided with a chain tooth forming groove (133).

9. A slider forming mold according to claim 8, wherein: The lower mold (100) also includes a positioning block (160) and a connecting groove (170). The positioning block (160) is fixedly connected to the side end face of the second module (141) and the third module (151) facing the first module (131). The connecting groove (170) that cooperates with the positioning block (160) is opened on the side end face of the first module (131) and the third module (151) facing the second module (141), and the side end face of the connecting groove (170) is inclined.

10. A slider forming mold according to claim 9, wherein: The upper mold (200) and the lower mold (100) are symmetrical about the XY direction plane.

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