A silicone watchband mold based on skeleton

Abstract

The utility model discloses a silicone watchband mold based on a skeleton, comprising: a lower mold and an upper mold, wherein the upper mold and the lower mold are arranged side by side in a vertical direction, and a lifting frame is arranged between the upper mold and the lower mold; a first mold core; a second mold core, which is arranged side by side with the first mold core on the inner side of the lifting frame, and bolt assemblies matching with the second mold core are arranged at both ends of the first mold core; a driving insert, which can be detachably installed on the upper mold to drive the first mold core and the second mold core to move away from each other; by providing the driving insert, the guide insert and the separated first mold core and the second mold core, it is ensured that when the mold is closed, the expanded skeleton will no longer contact and interfere with the lower mold to cause scratch damage, and the installation position of the skeleton will not change after the mold is closed, the qualified rate of the product is greatly improved, the device structure is simple, and it is easy to use.

Description

Technical Field

[0001] The utility model specifically relates to a silicone watchband mould based on a skeleton. Background Art

[0002] In recent years, the market share of smart wearable products has continued to grow steadily. There are many types of silicone straps used in smart wearable products. Silicone straps are a common watch strap material, usually made of silicone, also known as silicone rubber. Silicone has the characteristics of softness, wear resistance, high temperature resistance, and pollution resistance.

[0003] However, there are shortcomings in the production of existing silicone watch straps with plastic frames. Since the plastic frame expands due to heat, it will scrape against the peak of the lower mold cavity when the mold is closed. After the scrape, the frame is brought out, which eventually leads to the production problem that the frame cannot be installed in place. This problem causes the silicone watch strap to be unable to be produced at full capacity in the full cavity in actual production, resulting in low output and low pass rate. For this reason, we propose a silicone watch strap mold based on a skeleton. Utility Model Content

[0004] The utility model aims to provide a silicone watchband mold based on a skeleton, so as to solve the problem in the above background technology that the plastic skeleton expands when heated, and may scrape against the peak of the lower mold cavity during mold closing, resulting in low pass rate.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a silicone watchband mold based on a skeleton, comprising:

[0006] A lower mold and an upper mold, wherein the upper mold and the lower mold are arranged side by side in a vertical direction, and a lifting frame is arranged between the upper mold and the lower mold;

[0007] The first mold core;

[0008] A second mold core is arranged side by side with the first mold core on the inner side of the lifting frame, and bolt assemblies matching with the second mold core are arranged at both ends of the first mold core;

[0009] A driving insert is detachably mounted on the upper mold to drive the first mold core and the second mold core to move away from each other;

[0010] A guide groove is formed on the lower surface of the second mold core, and the guide groove passes through a side wall of the first mold core and extends toward the inner side of the first mold core;

[0011] The guide insert is fixed on the lower mold, and the guide insert is slidably matched with the guide groove.

[0012] Preferably, the cross section of the driving insert is an isosceles trapezoid, and the lower base of the driving insert corresponds to the upper mold.

[0013] Preferably, a slide groove is provided on the inner side of the lifting frame, and the lifting frame cooperates with the first mold core and the second mold core respectively through the slide groove, and a pressing block for pressing the first mold core and the second mold core is provided on the inner side of the slide groove.

[0014] Preferably, the cross section of the pressing block is "L"-shaped, and the pressing block and the slide groove are matched by connecting bolts.

[0015] Preferably, the bolt assembly includes a rod body and a threaded head, the rod body is slidably arranged at both ends of the inner side of the first mold core, and a threaded head is fixed at one end of the rod body, and the outer surface of the threaded head is connected to a limiting nut through a threaded portion.

[0016] Preferably, the outer diameter of the rod body is greater than the outer diameter of the threaded head.

[0017] Preferably, an upper pad matched with an upper platform of an external press is provided on the upper die, and a lower pad matched with a lower platform of the external press is provided on the lower surface of the lower die.

[0018] Preferably, the lifting frame is frame-shaped, and the inner hole of the lifting frame has the same shape as the lower mold and the upper mold.

[0019] Preferably, the guide insert is rectangular, and two guide inserts are provided.

[0020] Preferably, a groove for accommodating the skeleton is formed on one side wall of the first mold core.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] By providing a driving insert, a guide insert and a separate first mold core and a second mold core, it is avoided that the skeleton of the mold core side wall contacts and scratches the peak of the mold cavity when the mold is closed. When the mold is closed, the expanded skeleton will no longer contact and interfere with the lower mold to cause scratch damage, and the installation position of the skeleton will not change after the mold is closed. The qualified rate of products is greatly improved, and the device has a simple structure and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the drive insert of the utility model;

[0025] Figure 3 This is a schematic diagram of the guide insert structure of the utility model;

[0026] Figure 4 This is a schematic diagram of the lifting frame structure of the utility model;

[0027] Figure 5This is a schematic diagram of the guide groove structure of the utility model;

[0028] Figure 6 This is a schematic diagram of the bolt assembly structure of the utility model;

[0029] Figure 7 It is a schematic diagram of the existing mold clamping structure;

[0030] Figure 8 Schematic diagram of the existing mold core structure.

[0031] In the figure: 1, lower pad; 2, lower mold; 31, first mold core; 311, groove; 32, second mold core; 33, guide groove; 4, lifting frame; 5, upper mold; 6, upper pad; 7, drive insert; 8, guide insert; 91, slide groove; 92, pressure block; 101, rod body; 102, threaded head. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] See also Figure 1-Figure 8 The utility model provides a technical solution: a silicone watchband mold based on a skeleton, comprising:

[0034] A lower die 2 and an upper die 5, wherein the upper die 5 and the lower die 2 are arranged side by side in the vertical direction, and a lifting frame 4 is arranged between the upper die 5 and the lower die 2;

[0035] A first mold core 31;

[0036] The second mold core 32 is arranged side by side with the first mold core 31 on the inner side of the lifting frame 4. The first mold core 31 and the second mold core 32 are designed separately to reduce the width of the mold core when the mold is closed. After the final mold is closed, the distance between the first mold core 31 and the second mold core 32 is increased by driving the insert 7 so that the skeleton of the silicone watch strap enters the mold cavity of the lower mold 2. Bolt assemblies matching the second mold core 32 are arranged at both ends of the first mold core 31.

[0037] The driving insert 7 is detachably mounted on the upper mold 5 to drive the first mold core 31 and the second mold core 32 to move away from each other, so as to adjust the overall width of the first mold core 31 and the second mold core 32 after the mold is closed;

[0038] A guide groove 33 is formed on the lower surface of the second mold core 32, and the guide groove 33 passes through a side wall of the first mold core 31 and extends toward the inner side of the first mold core 31;

[0039] The guide insert 8 is fixed on the lower mold 2, and the guide insert 8 is slidably matched with the guide groove 33, so as to drive the first mold core 31 and the second mold core 32 away from each other.

[0040] Preferably, the cross section of the driving insert 7 is an isosceles trapezoid, and the lower base of the driving insert 7 corresponds to the upper mold 5, so that the short side of the upper base of the driving insert 7 can be better extended between the first mold core 31 and the second mold core 32.

[0041] Preferably, a slide groove 91 is opened on the inner side of the lifting frame 4, and the lifting frame 4 cooperates with the first mold core 31 and the second mold core 32 respectively through the slide groove 91. A pressing block 92 for pressing the first mold core 31 and the second mold core 32 is arranged on the inner side of the slide groove 91, so as to facilitate the simple pressing and installation of the first mold core 31 and the second mold core 32 onto the lifting frame 4.

[0042] Preferably, the cross section of the pressing block 92 is “L”-shaped, and the pressing block 92 and the slide groove 91 are matched with each other through connecting bolts, so as to facilitate the convenient pressing of the first mold core 31 and the second mold core 32 .

[0043] Preferably, the bolt assembly includes a rod body 101 and a threaded head 102. The rod body 101 is slidably arranged at both ends of the inner side of the first mold core 31, and a threaded head 102 is fixed to one end of the rod body 101. The outer surface of the threaded head 102 is connected to a limiting nut through a threaded portion, so that the two ends of the first mold core 31 and the second mold core 32 are connected to each other so that the first mold core 31 and the second mold core 32 are in the same plane.

[0044] Preferably, the outer diameter of the rod body 101 is greater than the outer diameter of the threaded head 102 .

[0045] Preferably, an upper pad 6 cooperating with an upper platform of an external press is provided on the upper die 5, and a lower pad 1 cooperating with a lower platform of an external press is provided on the lower surface of the lower die 2.

[0046] Preferably, the lifting frame 4 is frame-shaped, and the inner hole of the lifting frame 4 has the same shape as the lower mold 2 and the upper mold 5 , so that the upper mold 5 and the lower mold 2 can extend into the inner side of the lifting frame 4 .

[0047] Preferably, the guide insert 8 is rectangular, and two guide inserts 8 are provided to facilitate better horizontal movement of the first mold core 31 and the second mold core 32.

[0048] Preferably, a groove 311 for accommodating the skeleton is formed on one side wall of the first mold core 31 .

[0049] Existing mold scratching reasons: such as Figure 7 , Figure 8As shown in the figure, during production, the lower die and the lower pad are fixed together on the lower platform of the press, and the lifting frame with the mold core falls down, first contacting the lower die, and then the upper die and the upper pad installed on the upper platform of the press go down, and finally reach the mold closing state with the lifting frame, the lower die and the mold core. The skeleton is installed on the mold core and moves downward with the mold core. Before reaching the final mold closing position, the skeleton first contacts the front position of the mold cavity of the lower die, resulting in scratches, and the installation position of the skeleton on the mold core changes, causing the relative position of the skeleton in the product to change, and the product is scrapped.

[0050] The working principle and use process of the utility model are as follows: when in use, the skeleton is respectively installed on the inner side of the groove 311 opened on the side wall of the first mold core 31 and the second mold core 32, and the two mold cores, the first mold core 31 and the second mold core 32, which are divided into two parts, are combined by a bolt assembly and placed on the lifting frame 4. The combined mold core is smaller than the original mold core in width, and then the two combined mold cores are pressed by the pressing block 92. When the mold is closed, when the combined mold core falls with the lifting frame 4, the mold core combined by the first mold core 31 and the second mold core 32 is smaller in width than the original mold core, so The skeletons on both sides no longer contact the front edge of the lower mold 2. The guide groove 33 on the lower surface of the merged mold core falls on the newly added guide insert 8 of the lower mold 2 to position the mold core. Finally, the upper mold 5 with the newly added drive insert 7 falls down to close the mold. The newly added drive insert 7 first contacts the merged mold core. As the height continues to decrease, the originally merged mold core is separated again by the drive insert 7 and gradually moves to both sides along the guide insert 8. When the upper mold 5 finishes falling, the separated first mold core 31 and second mold core 32 are just pushed to the accurate mold closing position.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A silicone watchband mold based on a skeleton, characterized in that: include: A lower mold (2) and an upper mold (5), wherein the upper mold (5) and the lower mold (2) are arranged side by side in a vertical direction, and a lifting frame (4) is arranged between the upper mold (5) and the lower mold (2); A first mold core (31); A second mold core (32) is arranged side by side with the first mold core (31) on the inner side of the lifting frame (4), and bolt assemblies matching with the second mold core (32) are arranged at both ends of the first mold core (31); A driving insert (7) is detachably mounted on the upper mold (5) to drive the first mold core (31) and the second mold core (32) to move away from each other; A guide groove (33) is formed on the lower surface of the second mold core (32), and the guide groove (33) penetrates a side wall of the first mold core (31) and extends toward the inside of the first mold core (31); The guide insert (8) is fixed on the lower mold (2), and the guide insert (8) is slidably matched with the guide groove (33).

2. A skeleton-based silicone watchband mold according to claim 1, characterized in that: The cross section of the driving insert (7) is an isosceles trapezoid, and the lower base of the driving insert (7) corresponds to the upper mold (5).

3. A skeleton-based silicone watchband mold according to claim 1, characterized in that: A slide groove (91) is provided on the inner side of the lifting frame (4), and the lifting frame (4) is respectively matched with the first mold core (31) and the second mold core (32) through the slide groove (91). A pressing block (92) for pressing the first mold core (31) and the second mold core (32) is provided on the inner side of the slide groove (91).

4. A skeleton-based silicone watchband mold according to claim 3, characterized in that: The cross section of the pressing block (92) is in an "L" shape, and the pressing block (92) and the slide groove (91) are matched with each other via connecting bolts.

5. The skeleton-based silicone watchband mold according to claim 1, characterized in that: The bolt assembly comprises a rod body (101) and a threaded head (102); the rod body (101) is slidably arranged at two ends of the inner side of the first mold core (31); one end of the rod body (101) is fixed with a threaded head (102); and the outer surface of the threaded head (102) is connected to a limiting nut through a threaded portion.

6. A skeleton-based silicone watchband mold according to claim 5, characterized in that: The outer diameter of the rod body (101) is greater than the outer diameter of the threaded head (102).

7. The skeleton-based silicone watchband mold according to claim 1, characterized in that: The upper die (5) is provided with an upper pad (6) which matches with the upper platform of the external press, and the lower surface of the lower die (2) is provided with a lower pad (1) which matches with the lower platform of the external press.

8. The skeleton-based silicone watchband mold according to claim 1, characterized in that: The lifting frame (4) is frame-shaped, and the inner hole of the lifting frame (4) has the same shape as the lower mold (2) and the upper mold (5).

9. The skeleton-based silicone watchband mold according to claim 1, characterized in that: The guide insert (8) is rectangular, and two guide inserts (8) are provided.

10. The skeleton-based silicone watchband mold according to claim 1, characterized in that: A groove (311) for accommodating a frame is formed on one side wall of the first mold core (31).

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