A stopper rod position adjustable mold

CN224881126UActive Publication Date: 2026-10-23SHANGHAI JUNTAI ZIP MOLDS CO LTD
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Patent Information

Application Number
CN202522128459.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-09
Publication Date
2026-10-23
Estimated Expiration
2035-10-09

AI Technical Summary

Technical Problem

[0002]目前,拉链在生产完成之后,需要在端部注塑形成止口,止口能够防止拉链头滑出拉链的两端,有效确保拉链的闭合稳定性,但是目前注塑止口的模具仅能够生产制造一种长度的拉链,因此,不同长度的拉链需要更换不同的模具,这不仅会造成模具的浪费,在生产过程中需要更换模具,增加了工人的工作强度,还减慢了工人的工作效率

Benefits of technology

[0016]上述技术方案与现有技术相比具有的积极效果是:

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Abstract

The utility model discloses a plug rod position adjustable type mould, its characterized in that, include: the upper die is equipped with main runner, and the main runner sets along the length direction of upper die, and the at least one end of main runner is communicated with outside, plug rod passes through one end of main runner and enters main runner, and slides in main runner, the position of lower die is equipped with auxiliary runner corresponding to main runner, and the both ends inner wall of length direction of auxiliary runner is relatively inclined and sets, and the one end of plug rod that enters main runner is equipped with the block, and the block can embed auxiliary runner, and plug rod passes through the block and carries out the plugging of main runner and auxiliary runner. Through the application of the utility model, provide a plug rod position adjustable type mould, through the relative position of adjusting plug rod in main runner and auxiliary runner, make this mould can be applicable to a variety of different length's zipper, need not to change mould in the process of producing different zipper, effectively reduce the working strength of worker, accelerate the work efficiency.
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Description

Technical Field

[0001] This utility model relates to the technical field of zipper manufacturing molds and related fields, and in particular to a mold with an adjustable stopper position. Background Technology

[0002] Currently, after zippers are manufactured, stoppers need to be injection molded at the ends to prevent the zipper head from slipping out of both ends of the zipper, effectively ensuring the stability of the zipper's closure. However, the molds for injection molding the stoppers can only produce zippers of one length. Therefore, different molds are required for zippers of different lengths. This not only wastes molds, but also increases the workload of workers and slows down their work efficiency due to the need to change molds during the production process. Utility Model Content

[0003] In view of this, in order to solve the above problems, the purpose of this utility model is to provide a stopper rod position adjustable mold, which includes:

[0004] Lower mold, upper mold, stopper;

[0005] The upper mold is provided with a main channel, which is arranged along the length direction of the upper mold, and at least one end of the main channel is connected to the outside.

[0006] The stopper rod extends into the main channel through one end of the main channel and slides within the main channel;

[0007] The lower mold is provided with a secondary flow channel at the position corresponding to the main flow channel, and the inner walls of the two ends of the secondary flow channel in the length direction are inclined relative to each other;

[0008] The end of the stopper rod that extends into the main flow channel is provided with a plug, which can be embedded in the secondary flow channel. The stopper rod blocks the main flow channel and the secondary flow channel through the plug.

[0009] In the aforementioned adjustable stopper position mold, the stopper block has a rectangular cross-section, a length surface of the stopper rod is flush with a length surface of the upper mold, and the stopper block protrudes relative to a length surface of the upper mold.

[0010] In the aforementioned adjustable stopper position mold, the lower mold is provided with a groove, a limiting block is embedded in the groove, and a length surface of the limiting block is recessed towards the bottom of the groove to form the secondary flow channel.

[0011] In the aforementioned adjustable stopper rod mold, the bottom of the groove is provided with several through holes communicating with the outside.

[0012] In the aforementioned adjustable stopper position mold, the upper mold is provided with an injection hole, which is connected to the main runner.

[0013] In the aforementioned adjustable stopper rod mold, the upper mold is provided with a plurality of upper guide holes, the lower mold is provided with a plurality of lower guide holes, and a plurality of guide pins are correspondingly connected to the plurality of upper guide holes and the plurality of lower guide holes.

[0014] In the aforementioned adjustable stopper position mold, the upper mold is provided with two sets of upper chain tooth cavities, which are symmetrically arranged along the main channel.

[0015] In the aforementioned adjustable stopper position mold, the lower mold is provided with two sets of lower chain tooth cavities, which are symmetrically arranged along the secondary flow channel.

[0016] The positive effects of the above technical solution compared with the existing technology are:

[0017] By applying this utility model, an adjustable stopper rod position mold is provided. By adjusting the relative position of the stopper rod in the main flow channel and the secondary flow channel, this mold can be applied to zippers of various lengths. There is no need to change the mold during the production of different zippers, which effectively reduces the labor intensity of workers and speeds up the work efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the lower mold and stopper rod in this utility model.

[0019] Figure 2 This is a schematic diagram of the stopper rod in this utility model.

[0020] Figure 3 This is a first schematic diagram of the lower mold in this utility model.

[0021] Figure 4 This is a second schematic diagram of the lower mold in this utility model.

[0022] Figure 5 This is a schematic diagram of the upper mold in this utility model.

[0023] Figure 6 This is a cross-sectional view of a stopper rod position adjustable mold according to the present invention.

[0024] 1. Upper mold; 2. Lower mold; 3. Stopper; 4. Main runner; 5. Secondary runner; 6. Block; 7. Groove; 8. Limiting block; 9. Through hole; 10. Injection hole; 11. Upper guide hole; 12. Lower guide hole; 13. Guide post; 14. Upper chain tooth cavity; 15. Lower chain tooth cavity. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0026] The structures, proportions, and sizes illustrated in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0027] like Figures 1 to 6 As shown, a preferred embodiment of an adjustable stopper rod mold is illustrated, comprising: a lower mold 2, an upper mold 1, and a stopper rod 3.

[0028] The upper mold 1 is provided with a main channel 4, which is arranged along the length direction of the upper mold 1, and at least one end of the main channel 4 is connected to the outside. The stopper rod 3 extends into the main channel 4 through one end of the main channel 4 and slides in the main channel 4. The lower mold 2 is provided with a secondary channel 5 at the position corresponding to the main channel 4, and the inner walls of the two ends of the secondary channel 5 are inclined relative to each other in the length direction. The stopper rod 3 is provided with a block 6 at the end of the main channel 4, which can be embedded in the secondary channel 5. The stopper rod 3 blocks the main channel 4 and the secondary channel 5 through the block 6.

[0029] In actual use, the stopper 3 can be slidably installed in the main channel 4, thereby limiting the length of the main channel 4, so that zippers of different lengths can be placed in the main channel 4 for injection molding stop. Just adjust the relative position of the stopper 3 to the main channel 4. After the zipper is placed, the upper mold 1 and the lower mold 2 are closed, and injection molding can be performed in the upper mold 1 and the lower mold 2 to form the stop of the zipper.

[0030] Specifically, the inner walls of the secondary flow channel 5 are inclined relative to each other in the two width directions, providing an inclined channel for the block 6 to move in and out of the secondary flow channel 5, so that the block 6 can move in and out of the secondary flow channel 5 more smoothly and will not get stuck in the secondary flow channel 5.

[0031] Based on the above, this utility model also has the following embodiments:

[0032] Furthermore, in a stopper rod position adjustable mold, the stopper block 6 has a rectangular cross-section, a length surface of the stopper rod 3 is flush with a length surface of the upper mold 1, and the stopper block 6 protrudes relative to a length surface of the upper mold 1. Specifically, the stopper rod 3 is fully embedded in the main channel 4, resulting in better material blocking effect on the main channel 4.

[0033] Furthermore, a stopper rod position adjustable mold is provided, wherein the stopper block 6 is disposed on the surface along the length direction of the stopper rod 3.

[0034] Furthermore, in a stopper rod position adjustable mold, the lower mold 2 is provided with a groove 7, a limiting block 8 is embedded in the groove 7, and a length surface of the limiting block 8 is recessed towards the bottom of the groove 7 to form a secondary flow channel 5.

[0035] Furthermore, a stopper rod position adjustable mold is provided, wherein the bottom of the groove 7 is provided with several through holes 9 communicating with the outside.

[0036] Furthermore, a stopper rod position adjustable mold is provided, wherein the upper mold 1 is provided with an injection hole 10, which is connected to the main channel 4.

[0037] In actual use, the material enters the main flow channel 4 and the secondary flow channel 5 through the injection hole 10 to form a stop at the end of the zipper. The limiting block 8 can be disassembled and replaced by passing a tool through the through hole 9. The disassembly method is simple and quick.

[0038] Furthermore, in a stopper rod position adjustable mold, the upper mold 1 is provided with a plurality of upper guide holes 11, the lower mold 2 is provided with a plurality of lower guide holes 12, and a plurality of guide posts 13 are correspondingly inserted and connected to the plurality of upper guide holes 11 and the plurality of lower guide holes 12. Specifically, the upper mold 1 and the lower mold 2 are positioned and closed by the guide posts 13.

[0039] Furthermore, a stopper rod position adjustable mold is provided, wherein the upper mold 1 is provided with two sets of upper chain tooth cavities 14, and the two sets of upper chain tooth cavities 14 are symmetrically arranged along the main channel 4.

[0040] Furthermore, in a stopper position adjustable mold, the lower mold 2 is provided with two sets of lower chain tooth cavities 15, which are symmetrically arranged along the secondary flow channel 5. Specifically, the upper chain tooth cavity 14 is used to hold the upper chain of the zipper, and the lower mold tooth cavity 15 is used to hold the lower chain of the zipper.

[0041] The above description is merely a preferred embodiment of the present invention and does not limit the implementation and protection scope of the present invention. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present invention should be included within the protection scope of the present invention.

Claims

1. A stopper rod position adjustable mold, characterized in that, include: Lower mold, upper mold, stopper; The upper mold is provided with a main channel, which is arranged along the length direction of the upper mold, and at least one end of the main channel is connected to the outside. The stopper rod extends into the main channel through one end of the main channel and slides within the main channel; The lower mold is provided with a secondary flow channel at the position corresponding to the main flow channel, and the inner walls of the two ends of the secondary flow channel in the length direction are inclined relative to each other; The end of the stopper rod that extends into the main flow channel is provided with a plug, which can be embedded in the secondary flow channel. The stopper rod blocks the main flow channel and the secondary flow channel through the plug.

2. The adjustable stopper rod mold according to claim 1, characterized in that, The block has a rectangular cross-section, one length surface of the stopper rod is flush with one length surface of the upper mold, and the block protrudes relative to one length surface of the upper mold.

3. The adjustable stopper rod mold according to claim 1, characterized in that, The lower mold is provided with a groove, and a limiting block is embedded in the groove. A long surface of the limiting block is recessed towards the bottom of the groove to form the secondary flow channel.

4. The adjustable stopper rod position mold according to claim 3, characterized in that, The bottom of the groove is provided with several through holes that communicate with the outside.

5. The adjustable stopper rod mold according to claim 1, characterized in that, The upper mold is provided with an injection hole, which is connected to the main channel.

6. The adjustable stopper rod mold according to claim 1, characterized in that, The upper mold is provided with a plurality of upper guide holes, the lower mold is provided with a plurality of lower guide holes, and a plurality of guide posts are connected to the plurality of upper guide holes and the plurality of lower guide holes in a corresponding manner.

7. The adjustable stopper rod mold according to claim 1, characterized in that, The upper mold is provided with two sets of upper chain tooth cavities, which are symmetrically arranged along the main channel.

8. The adjustable stopper rod mold according to claim 1, characterized in that, The lower mold is provided with two sets of lower chain tooth cavities, which are symmetrically arranged along the secondary flow channel.