Dual end opening mold for nylon zipper

Abstract

The utility model discloses a kind of nylon zipper double-opening end mould, wherein, including: the surface of lower mould is equipped with main runner, the left side and the right side of the top of main runner are equipped with first small slot and first block slot respectively;The left side and the right side of the bottom of main runner are equipped with second block slot and second small slot respectively;Upper mould is equipped with with main runner matched secondary runner, the left side and the right side of the top of secondary runner are equipped with with first small slot matched third small slot, with first block slot matched third block slot, the left side and the right side of the bottom of secondary runner are equipped with with second small slot matched fourth small slot, with second block slot matched fourth block slot. Through the application of the utility model, a kind of nylon zipper double-opening end mould is provided, the zipper formed by the mould injection molding can install two pullers of different orientations, realize the " bidirectional split type " zipper structure, satisfy the required of multiple conditions.

Description

Technical Field

[0001] This utility model relates to the technical field of zipper manufacturing molds and related fields, and in particular to a double-opening tail mold for nylon zippers. Background Technology

[0002] A significant technical limitation exists in current zipper mold manufacturing technology: existing injection molding processes can only mold a single square or small insert structure onto the same zipper strip. This design constraint directly restricts the functional combinations of zippers, limiting the final product to either a zipper system with one unidirectional slider or a bidirectional zipper system with two sliders moving in the same direction. However, this structure cannot meet the market's demand for complex functionalities where two sliders move in opposite directions on the same zipper, i.e., a "bidirectional split-opening" zipper structure cannot be achieved. Utility Model Content

[0003] In view of this, and to solve the above problems, the purpose of this utility model is to provide a double-opening tail mold for nylon zippers, comprising:

[0004] Lower mold, upper mold;

[0005] The surface of the lower mold is provided with a main channel, and the top left and right sides of the main channel are respectively provided with a first small slot and a first square slot.

[0006] The bottom left and right sides of the main channel are respectively provided with a second square groove and a second small slot.

[0007] The upper mold is provided with a secondary flow channel that matches the main flow channel. The top left and right sides of the secondary flow channel are respectively provided with a third small slot that matches the first small slot and a third block slot that matches the first block slot. The bottom left and right sides of the secondary flow channel are respectively provided with a fourth small slot that matches the second small slot and a fourth block slot that matches the second block slot.

[0008] The above-mentioned nylon zipper double-opening tail mold includes a lower mold with a first groove and an upper mold with a second groove. A first limiting block is installed on the lower mold near the first square groove, and the right end of the first limiting block extends into the first square groove. A second limiting block is installed on the upper mold near the third square groove, and the right end of the second limiting block extends into the third square groove. A first guide post is installed on the first groove and the second groove, a first guide post groove is formed between one end of the first guide post and the right end of the first limiting block, and a second guide post groove is formed between the other end of the first guide post and the right end of the second limiting block. The first guide post groove and the second guide post groove are connected.

[0009] The above-mentioned nylon zipper double-opening tail mold includes a lower mold with a third groove and an upper mold with a fourth groove. A third limiting block is installed on the lower mold near the second square groove, and the left end of the third limiting block extends into the second square groove. A fourth limiting block is installed on the upper mold near the fourth square groove, and the left end of the fourth limiting block extends into the fourth square groove. A second guide post is installed on the third groove and the fourth groove, one end of the second guide post and the left end of the third limiting block form a third guide post groove, and the other end of the second guide post and the left end of the fourth limiting block form a fourth guide post groove. The third guide post groove and the fourth guide post groove are connected.

[0010] The aforementioned nylon zipper double-opening tail mold includes a main channel comprising a main channel, a first main branch channel, a second main branch channel, a third main branch channel, and a fourth main branch channel. The main channel is longitudinally arranged at the center of the lower mold. The first and second main branch channels are arranged at an angle relative to each other and are connected to the top of the main channel. The third and fourth main branch channels are arranged at an angle relative to each other and are connected to the bottom of the main channel.

[0011] The above-mentioned nylon zipper double-ended mold, wherein the end of the first main branch away from the main branch is connected to the first small slot through a first gate; the width of the first gate gradually decreases from the direction of the first main branch towards the direction of the first small slot; the end of the third main branch away from the main branch is connected to the second small slot through a second gate; the width of the second gate gradually decreases from the direction of the third main branch towards the direction of the second small slot.

[0012] The aforementioned nylon zipper double-ended mold includes a secondary flow channel comprising: a secondary path, a first secondary branch path, a second secondary branch path, a third secondary branch path, and a fourth secondary branch path. The secondary path is longitudinally arranged at the center of the upper mold. The first and second secondary branches are inclined relative to each other and connected to the top ends of the secondary paths. The third and fourth secondary branches are inclined relative to each other and connected to the bottom ends of the secondary paths. The main path and the secondary paths are arranged opposite each other. The first main branch path and the first secondary branch path are arranged opposite each other. The second main branch path and the second secondary branch path are arranged opposite each other. The third main branch path and the third secondary branch path are arranged opposite each other. The fourth main branch path and the fourth secondary branch path are arranged opposite each other.

[0013] In the aforementioned nylon zipper double-tail mold, the end of the first secondary branch away from the secondary branch is connected to the third small slot via a third gate; the width of the third gate gradually decreases from the direction of the first secondary branch towards the direction of the third small slot; the end of the third secondary branch away from the secondary branch is connected to the fourth small slot via a fourth gate; the width of the fourth gate gradually decreases from the direction of the third secondary branch towards the direction of the fourth small slot.

[0014] The above-mentioned nylon zipper double-opening tail mold includes an upper mold with several upper guide holes, a lower mold with several lower guide holes, and several guide posts that are correspondingly connected to the upper guide holes and the lower guide holes.

[0015] The aforementioned nylon zipper double-ended mold further includes: two pressure molds; the upper mold is provided with two through holes, and the two pressure molds pass through the two through holes and are respectively connected to the first guide post and the second guide post.

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

[0017] By applying this utility model, a double-opening tail mold for nylon zippers is provided. The first small slot and the first square slot of this mold are injection molded to form the first small insert and the first square of the first group. The second small slot and the second square slot are injection molded to form the second small insert and the second square of the second group. Two zipper heads facing different directions can be installed on the same injection molded zipper to realize the "two-way opening" zipper structure and meet the needs of various situations. Attached Figure Description

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

[0019] Figure 2 This is a second schematic diagram of the lower mold in this utility model.

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

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

[0022] Figure 5 This is a first partial sectional view of a nylon zipper double-tail mold according to the present invention.

[0023] Figure 6 This is a second partial sectional view of a nylon zipper double-tail mold according to the present invention.

[0024] Figure 7 This is a schematic diagram of the zipper in this utility model.

[0025] 1. Lower mold; 2. Main runner; 3. First small slot; 4. First square slot; 5. Second square slot; 6. Second small slot; 7. Upper mold; 8. Secondary runner; 9. Third small slot; 10. Third square slot; 11. Fourth small slot; 12. Fourth square slot; 13. First groove section; 14. Second groove section; 15. First limiting block; 16. Second limiting block; 17. First guide pillar; 18. First guide pillar groove; 19. Second guide pillar groove; 20. Third groove section; 21. Fourth groove section; 22. Third limiting block; 23. Fourth limiting block; 24. Second guide pillar; 25. Third guide post groove; 26. Fourth guide post groove; 27. Main path; 28. First main branch path; 29. ​​Second main branch path; 30. Third main branch path; 31. Fourth main branch path; 32. First gate; 33. Second gate; 34. Secondary path; 35. First secondary branch path; 36. Second secondary branch path; 37. Third secondary branch path; 38. Fourth secondary branch path; 39. Third gate; 40. Fourth gate; 41. Guide post; 42. Compression mold; 43. Through hole; 44. Zipper; 45. First block; 46. First small insert; 47. Second block; 48. Second small insert. Detailed Implementation

[0026] 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.

[0027] 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.

[0028] like Figures 1 to 7 As shown, a preferred embodiment of a double-ended nylon zipper mold is illustrated, comprising: a lower mold 1 and an upper mold 7.

[0029] The surface of the lower mold 1 is provided with a main flow channel 2. The top left and right sides of the main flow channel 2 are respectively provided with a first small slot 3 and a first square slot 4. The bottom left and right sides of the main flow channel 2 are respectively provided with a second square slot 5 and a second small slot 6. The upper mold 7 is provided with a secondary flow channel 8 that matches the main flow channel 2. The top left and right sides of the secondary flow channel 8 are respectively provided with a third small slot 9 that matches the first small slot 3 and a third square slot 10 that matches the first square slot 4. The bottom left and right sides of the secondary flow channel 8 are respectively provided with a fourth small slot 11 that matches the second small slot 6 and a fourth square slot 12 that matches the second square slot 5.

[0030] In actual use, after the upper mold 7 and the lower mold 1 are closed, the injection zipper 44 of the injection cavity formed by the first small slot 3 and the third small slot 9, the injection zipper 44 of the injection cavity formed by the first square slot 4 and the third square slot 10, the injection zipper 44 of the injection cavity formed by the second small slot 6 and the fourth small slot 11, and the injection zipper 44 of the injection cavity formed by the second square slot 5 and the fourth square slot 12, can install two zipper heads facing different directions, realizing a "two-way opening" zipper structure to meet the needs of various situations.

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

[0032] Furthermore, a double-ended nylon zipper mold includes a lower mold 1 with a first groove 13 and an upper mold 2 with a second groove 14. A first limiting block 15 is installed on the lower mold 1 near the first square groove 4, with the right end of the first limiting block 15 extending into the first square groove 4. A second limiting block 16 is installed on the upper mold 7 near the third square groove 10, with the right end of the second limiting block 16 extending into the third square groove 10. A first guide post 17 is installed in the first groove 13 and the second groove 14. A first guide post groove 18 is formed between one end of the first guide post 17 and the right end of the first limiting block 15, and a second guide post groove 19 is formed between the other end of the first guide post 17 and the right end of the second limiting block 16. The first guide post groove 18 and the second guide post groove 19 are connected. Specifically, the first guide post groove 18 and the second guide post groove 19 formed after the upper mold 7 and the lower mold 1 are closed can be used to injection mold a first pin located in the first square 45.

[0033] Furthermore, a double-ended nylon zipper mold includes a lower mold 1 with a third groove 20 and an upper mold 7 with a fourth groove 21. A third limiting block 22 is installed on the lower mold 1 near the second square groove 5, with its left end extending into the second square groove 5. A fourth limiting block 23 is installed on the upper mold 7 near the fourth square groove 12, with its left end extending into the fourth square groove 12. A second guide post 24 is installed in the third groove 20 and the fourth groove 21. One end of the second guide post 24 and the left end of the third limiting block 22 form a third guide post groove 25, and the other end of the second guide post 24 and the left end of the fourth limiting block 23 form a fourth guide post groove 26. The third guide post groove 25 and the fourth guide post groove 26 are connected. Specifically, after the upper mold 7 and the lower mold 1 are closed, the second pin located in the second square 47 can be injection molded into the third guide post groove 25 and the fourth guide post groove 26.

[0034] Furthermore, a double-ended nylon zipper mold is provided, wherein the main channel 2 includes: a main channel 27, a first main branch channel 28, a second main branch channel 29, a third main branch channel 30, and a fourth main branch channel 31; the main channel 27 is longitudinally arranged at the center of the lower mold 1, the first main branch channel 28 and the second main branch channel 29 are arranged at an angle relative to each other and are connected to the top of the main channel 27, and the third main branch channel 30 and the fourth main branch channel 31 are arranged at an angle relative to each other and are connected to the bottom of the main channel 27.

[0035] Furthermore, in a double-ended nylon zipper mold, the end of the first main branch 28 furthest from the main branch 27 is connected to the first small slot 3 via a first gate 32; the width of the first gate 32 gradually decreases from the direction of the first main branch 28 toward the direction of the first small slot 3; the end of the third main branch 30 furthest from the main branch 27 is connected to the second small slot 6 via a second gate 33; the width of the second gate 33 gradually decreases from the direction of the third main branch 30 toward the direction of the second small slot 6. Specifically, the gradually decreasing diameter of the first gate 32 and the second gate 33 can control the material flow rate.

[0036] Furthermore, a double-ended nylon zipper mold includes a secondary flow channel 8 comprising: a secondary channel 34, a first secondary branch channel 35, a second secondary branch channel 36, a third secondary branch channel 37, and a fourth secondary branch channel 38. The secondary channel 34 is longitudinally positioned at the center of the upper mold 7. The first secondary branch channel 35 and the second secondary branch channel 36 are inclined relative to each other and connected to the top of the secondary channel 34. The third secondary branch channel 37 and the fourth secondary branch channel 38 are inclined relative to each other and connected to the bottom of the secondary channel 34. The main channel 27 is positioned opposite to the secondary channel 34. The first main branch channel 28 is positioned opposite to the first secondary branch channel 35. The second main branch channel 29 is positioned opposite to the second secondary branch channel 36. The third main branch channel 30 is positioned opposite to the third secondary branch channel 37. The fourth main branch channel 31 is positioned opposite to the fourth secondary branch channel 38.

[0037] Furthermore, in a double-ended nylon zipper mold, the end of the first sub-branch 35 furthest from the sub-branch 34 is connected to the third small slot 9 via a third gate 39; the width of the third gate 39 gradually decreases from the direction of the first sub-branch 35 towards the direction of the third small slot 9; the end of the third sub-branch 37 furthest from the sub-branch 34 is connected to the fourth small slot 11 via a fourth gate 40; the width of the fourth gate 40 gradually decreases from the direction of the third sub-branch 37 towards the direction of the fourth small slot 11. Specifically, the gradually decreasing diameters of the third gate 39 and the fourth gate 40 allow for control of the material flow rate.

[0038] Furthermore, a double-ended nylon zipper mold is provided, wherein the upper mold 7 is provided with several upper guide holes, the lower mold 1 is provided with several lower guide holes, and several guide posts 41 are correspondingly connected to the several upper guide holes and several lower guide holes. Specifically, the upper mold 7 and the lower mold 1 are positioned by the several guide posts 41.

[0039] Furthermore, a double-ended nylon zipper mold further includes: two pressing molds 42; the upper mold 7 is provided with two through holes 43, and the two pressing molds 42 pass through the two through holes 43 and are respectively connected to the first guide post 17 and the second guide post 24. Specifically, the first guide post 17 and the second guide post 24 are pressed together by the two pressing molds 42.

[0040] 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 double-opening tail mold for nylon zippers, characterized in that, include: Lower mold, upper mold; The surface of the lower mold is provided with a main channel, and the top left and right sides of the main channel are respectively provided with a first small slot and a first square slot. The bottom left and right sides of the main channel are respectively provided with a second square groove and a second small slot. The upper mold is provided with a secondary flow channel that matches the main flow channel. The top left and right sides of the secondary flow channel are respectively provided with a third small slot that matches the first small slot and a third block slot that matches the first block slot. The bottom left and right sides of the secondary flow channel are respectively provided with a fourth small slot that matches the second small slot and a fourth block slot that matches the second block slot.

2. The double-opening tail mold for nylon zippers according to claim 1, characterized in that, The lower mold has a first groove, and the upper mold has a second groove. A first limiting block is installed on the lower mold near the first square groove, and the right end of the first limiting block extends into the first square groove. A second limiting block is installed on the upper mold near the third square groove, and the right end of the second limiting block extends into the third square groove. A first guide post is installed on the first groove and the second groove. A first guide post groove is formed between one end of the first guide post and the right end of the first limiting block, and a second guide post groove is formed between the other end of the first guide post and the right end of the second limiting block. The first guide post groove and the second guide post groove are connected.

3. The double-opening tail mold for nylon zippers according to claim 2, characterized in that, The lower mold has a third groove, and the upper mold has a fourth groove. A third limiting block is installed on the lower mold near the second square groove, and the left end of the third limiting block extends into the second square groove. A fourth limiting block is installed on the upper mold near the fourth square groove, and the left end of the fourth limiting block extends into the fourth square groove. A second guide post is installed on the third groove and the fourth groove. One end of the second guide post and the left end of the third limiting block form a third guide post groove, and the other end of the second guide post and the left end of the fourth limiting block form a fourth guide post groove. The third guide post groove and the fourth guide post groove are connected.

4. The nylon zipper double-end mold according to claim 1, characterized in that, The main road includes: a main road, a first main branch road, a second main branch road, a third main branch road, and a fourth main branch road; the main road is longitudinally arranged at the center of the lower mold, the first main branch road and the second main branch road are arranged at an angle relative to each other and are connected to the top of the main road, and the third main branch road and the fourth main branch road are arranged at an angle relative to each other and are connected to the bottom of the main road.

5. A double-ended nylon zipper mold according to claim 4, characterized in that, The end of the first main branch away from the main road is connected to the first small slot through a first gate; the width of the first gate gradually decreases from the direction of the first main branch towards the direction of the first small slot; the end of the third main branch away from the main road is connected to the second small slot through a second gate; the width of the second gate gradually decreases from the direction of the third main branch towards the direction of the second small slot.

6. A double-opening tail mold for nylon zippers according to claim 5, characterized in that, The secondary flow channel includes: a secondary path, a first secondary branch path, a second secondary branch path, a third secondary branch path, and a fourth secondary branch path; the secondary path is longitudinally arranged at the center of the upper mold, the first secondary branch path and the second secondary branch path are arranged at an angle relative to each other and are connected to the top of the secondary path, the third secondary branch path and the fourth secondary branch path are arranged at an angle relative to each other and are connected to the bottom of the secondary path, the main path and the secondary path are arranged opposite each other, the first main branch path and the first secondary branch path are arranged opposite each other, the second main branch path and the second secondary branch path are arranged opposite each other, the third main branch path and the third secondary branch path are arranged opposite each other, and the fourth main branch path and the fourth secondary branch path are arranged opposite each other.

7. A double-ended nylon zipper mold according to claim 6, characterized in that, The end of the first sub-branch away from the sub-branch is connected to the third small slot through a third gate; the width of the third gate gradually decreases from the direction of the first sub-branch towards the direction of the third small slot; the end of the third sub-branch away from the sub-branch is connected to the fourth small slot through a fourth gate; the width of the fourth gate gradually decreases from the direction of the third sub-branch towards the direction of the fourth small slot.

8. A double-ended nylon zipper 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.

9. A double-ended nylon zipper mold according to claim 3, characterized in that, Also includes: Two pressure molds; the upper mold is provided with two through holes, and the two pressure molds pass through the two through holes and are respectively connected to the first guide post and the second guide post.

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