Material belt breaking device

Abstract

The utility model discloses a material belt breaking device, which relates to the technical field of injection molding process auxiliary equipment, and comprises a first pressing arm, a second pressing arm and an elastic piece arranged between the first pressing arm and the second pressing arm, one end of the first pressing arm is hinged with one end of the second pressing arm, and the other end of the second pressing arm is hinged with the other end of the first pressing arm. A pressing and positioning structure is arranged between the other end of the first pressing arm and the other end of the second pressing arm and used for pressing and positioning a product, and redundant material strips on the product extend out of the position between the first pressing arm and the second pressing arm to be broken off. According to the material belt breaking-off device, the material belt can be fast broken off while the flatness of a product is guaranteed, the requirement of a customer for the flatness of the product is met, the product yield and the working efficiency are improved, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for injection molding processes, specifically to a strip breaking device. Background Technology

[0002] In the field of product manufacturing that combines inserts and plastics, many inserts need to be injection molded with a strip attached, which means that the strip needs to be broken off after the product is injection molded.

[0003] Currently, a pre-cut section is usually left at the connection between the insert and the strip. For example, in practice, a pre-cut section of about 0.1mm is usually left at the connection between the insert and the strip. After the insert and plastic are injection molded into a product, the part where the insert and the strip are connected becomes the strip connection part of the product. The strip can be manually broken off from the strip connection part.

[0004] However, due to factors such as insert material and pre-cut thickness, it is very easy to require repeated bending to break the strip manually. This not only affects the flatness of the product and fails to meet the customer's requirements for product flatness, reducing the product yield, but also results in high labor intensity, low work efficiency, and high production costs. Utility Model Content

[0005] In view of the above-mentioned defects in the existing technology, this utility model provides a strip breaking device that can quickly break the strip while ensuring the flatness of the product, thus meeting the customer's requirements for product flatness, improving product yield and work efficiency, and reducing production costs.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A strip breaking device includes a first clamping arm, a second clamping arm, and an elastic element disposed between the first clamping arm and the second clamping arm. One end of the first clamping arm and the second clamping arm are hinged together, and a clamping and positioning structure is provided between the other ends of the first clamping arm and the second clamping arm. The clamping and positioning structure is used to clamp and position the product. Excess strip on the product extends out from between the first clamping arm and the second clamping arm for breaking.

[0008] In some technical solutions, the clamping and positioning structure includes a positioning structure and a clamping structure located around the positioning structure. The positioning structure is used to position the main body of the product, and the clamping structure is used to clamp the material strip connection part of the product.

[0009] In some technical solutions, the positioning structure includes a contour positioning platform disposed on the first pressing arm and a contour positioning groove disposed on the second pressing arm, wherein the contour positioning platform and the contour positioning groove together form a contour positioning cavity adapted to the product body.

[0010] In some technical solutions, the material strip connecting part includes a first material strip connecting part and a second material strip connecting part disposed on opposite sides of the product body, and the pressing structure includes a first pressing plane disposed on the first pressing arm and a second pressing plane disposed on the second pressing arm. The first pressing plane and the second pressing plane cooperate with each other to press the first material strip connecting part and the second material strip connecting part.

[0011] In some technical solutions, the material strip connecting part further includes a third material strip connecting part disposed on the product body. The third material strip connecting part is located between the first material strip connecting part and the second material strip connecting part. The pressing structure further includes a third pressing plane disposed on the first pressing arm and a fourth pressing plane disposed on the second pressing arm. The third pressing plane and the fourth pressing plane cooperate with each other to press the third material strip connecting part.

[0012] In some technical solutions, a clamping limit structure is provided between the first clamping arm and the second clamping arm.

[0013] In some technical solutions, the clamping and limiting structure includes a first limiting platform disposed on the first clamping arm and a second limiting platform disposed on the second clamping arm. The first limiting platform is provided with a first limiting plane, and the second limiting platform is provided with a second limiting plane that cooperates with the first limiting plane.

[0014] In some technical solutions, the first limiting platform is provided with a clearance groove for avoiding the third material strip connection part, the second limiting platform is provided with a pressing platform for pressing down the third material strip connection part, the third pressing plane is provided at the bottom of the clearance groove, and the fourth pressing plane is provided on the pressing platform.

[0015] In some technical solutions, the clamping and limiting structure further includes a third limiting platform disposed on the second clamping arm, the third limiting platform being provided with a third limiting plane, and the first clamping arm being provided with a fourth limiting plane that cooperates with the third limiting plane.

[0016] In some technical solutions, the first clamping arm and the second clamping arm are hinged together by a pivot. The elastic element is a torsion spring, which is sleeved on the pivot. One torsion arm of the torsion spring is located on the first clamping arm, and the other torsion arm of the torsion spring is located on the second clamping arm.

[0017] By adopting the above technical solution, the beneficial effects of this utility model are:

[0018] The material strip breaking device provided by this utility model has a clamping and positioning structure between the first clamping arm and the second clamping arm. By clamping and positioning the product through the clamping and positioning structure, the material strip extending from the first clamping arm and the second clamping arm can be broken off quickly and stably by the operator, thereby realizing the rapid separation of the material strip from the product. This not only ensures the flatness of the product and meets the customer's requirements for product flatness, thus improving the product yield, but also improves work efficiency and reduces production costs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an embodiment of the material strip breaking device of this utility model;

[0020] In the diagram: 1. First clamping arm; 11. Contouring positioning platform; 12. First clamping plane; 13. Third clamping plane; 14. First limiting platform; 15. First limiting plane; 16. Clearance groove; 17. Fourth limiting plane; 18. First mounting groove; 2. Second clamping arm; 21. Contouring positioning groove; 22. Second clamping plane; 23. Fourth clamping plane; 24. Second limiting platform; 25. Second limiting plane; 26. Clamping platform; 27. Third limiting platform; 28. Third limiting plane; 29. ​​Second mounting groove; 3. Elastic element; 4. Rotating shaft. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and are not intended to limit this utility model.

[0022] In the field of product manufacturing combining inserts and plastics, after the inserts and plastics are injection molded and formed into a product, the inserts and plastics constitute the main body of the product. The part where the inserts are connected to the strip becomes the strip connection part of the product. It is necessary to manually break the strip from the strip connection part to separate the strip from the product. In order to achieve the separation of the strip from the product quickly and stably, this utility model provides a strip breaking device.

[0023] like Figure 1As shown, an embodiment of the material strip breaking device of the present invention is disclosed. The material strip breaking device includes a first pressing arm 1, a second pressing arm 2, and an elastic member 3 disposed between the first pressing arm 1 and the second pressing arm 2. One end of the first pressing arm 1 and the second pressing arm 2 are hinged together, and a pressing and positioning structure is provided between the other ends of the first pressing arm 1 and the second pressing arm 2. The pressing and positioning structure is used to press and position the product. Excess material strip on the product extends out from between the first pressing arm 1 and the second pressing arm 2 for breaking.

[0024] This strip breaking device uses a clamping and positioning structure to clamp and position the product, allowing manual labor to quickly and stably break the strip extending from the first clamping arm 1 and the second clamping arm 2, thereby achieving rapid separation of the strip from the product. This not only does not affect the flatness of the product, but also ensures the flatness of the product, meets the customer's requirements for product flatness, improves product yield, increases work efficiency, and reduces production costs.

[0025] In some embodiments, the clamping and positioning structure includes a positioning structure and a clamping structure located around the positioning structure. The positioning structure is used to position the main body of the product, and the clamping structure is used to clamp the strip connection portion of the product. This configuration achieves both positioning of the main body of the product and local clamping of the strip connection portion, further improving the stability of the product during strip breakage. It not only does not affect the flatness of the product but also facilitates rapid strip breakage.

[0026] In some embodiments, the positioning structure includes a contour positioning platform 11 disposed on the first clamping arm 1 and a contour positioning groove 21 disposed on the second clamping arm 2. The contour positioning platform 11 and the contour positioning groove 21 together form a contour positioning cavity adapted to the product body. This configuration further improves the stability and accuracy of product positioning, which is beneficial for improving the material strip breaking effect and increasing product yield. Of course, other positioning structures can also be adopted according to the specific structure of the product in practical applications, which will not be elaborated here.

[0027] In some embodiments, the strip connection includes a first strip connection and a second strip connection disposed on opposite sides of the product body. The clamping structure includes a first clamping plane 12 disposed on a first clamping arm 1 and a second clamping plane 22 disposed on a second clamping arm 2. The first clamping plane 12 and the second clamping plane 22 cooperate with each other to clamp the first strip connection and the second strip connection. By setting the first clamping plane 12 and the second clamping plane 22, the clamping force and clamping position of the first strip connection and the second strip connection can be precisely controlled, which can reduce the vibration and movement of the first strip connection and the second strip connection during the strip breaking process, thereby improving the breaking accuracy and breaking speed.

[0028] In some embodiments, the contour positioning stage 11 is disposed on the first pressing plane 12 and located at the center of the first pressing plane 12, and the first pressing plane 12 extends to the periphery of the contour positioning stage 11; the contour positioning groove 21 is disposed on the second pressing plane 22 and located at the center of the second pressing plane 22, and the second pressing plane 22 extends to the periphery of the contour positioning groove 21; of course, according to the processing requirements of the product, the contour positioning stage 11 and the contour positioning groove 21 may have other arrangements, which will not be elaborated here.

[0029] In some embodiments, the strip connection portion further includes a third strip connection portion disposed on the product body, located between the first strip connection portion and the second strip connection portion. The clamping structure further includes a third clamping plane 13 disposed on the first clamping arm 1 and a fourth clamping plane 23 disposed on the second clamping arm 2. The third clamping plane 13 and the fourth clamping plane 23 cooperate with each other to clamp the third strip connection portion. By setting the third clamping plane 13 and the fourth clamping plane 23, the clamping force and clamping position of the third strip connection portion can be precisely controlled, which can reduce the vibration and movement of the third strip connection portion during the strip breaking process, thereby improving the breaking accuracy and breaking speed.

[0030] In some embodiments, a clamping limit structure is provided between the first clamping arm 1 and the second clamping arm 2. This configuration prevents the first clamping arm 1 and the second clamping arm 2 from exceeding the safe height range of the product when clamping it, thereby avoiding damage to the product due to excessively low height and ensuring product quality.

[0031] In some embodiments, the clamping and limiting structure includes a first limiting platform 14 disposed on a first clamping arm 1 and a second limiting platform 24 disposed on a second clamping arm 2. The first limiting platform 14 is provided with a first limiting plane 15, and the second limiting platform 24 is provided with a second limiting plane 25 that mates with the first limiting plane 15. By providing the first limiting plane 15 and the second limiting plane 25, the stability of the first limiting platform 14 and the second limiting platform 24 during engagement can be improved, thereby ensuring product quality.

[0032] In some embodiments, the first limiting platform 14 is provided with a relief groove 16 for avoiding the third material strip connection part, the second limiting platform 24 is provided with a pressing platform 26 for pressing down the third material strip connection part, the third pressing plane 13 is provided at the bottom of the relief groove 16, and the fourth pressing plane 23 is provided on the pressing platform 26.

[0033] In some embodiments, the clamping and limiting structure further includes a third limiting platform 27 disposed on the second clamping arm 2, the third limiting platform 27 being provided with a third limiting plane 28, and the first clamping arm 1 being provided with a fourth limiting plane 17 that cooperates with the third limiting plane 28. By providing the third limiting plane 28 and the fourth limiting plane 17, the stability of the first clamping arm 1 when cooperating with the third limiting platform 27 can be improved, thereby ensuring product quality.

[0034] In some embodiments, the third limiting platform 27 is located on one side of the positioning structure (the contour positioning platform 11 and the contour positioning groove 21), while the first limiting platform 14 and the second limiting platform 24 are located on the other side of the positioning structure. This arrangement balances the clamping force on both sides of the product, thereby preventing the product from being damaged due to insufficient clamping height on one side, and further ensuring the quality of the product.

[0035] In some embodiments, the first clamping arm 1 and the second clamping arm 2 are hinged together by a pivot 4. The elastic element 3 is preferably a torsion spring, which is sleeved on the pivot 4, with one torsion arm of the torsion spring located on the first clamping arm 1 and the other torsion arm of the torsion spring located on the second clamping arm 2. Of course, the elastic element 3 can also be a spring, depending on the actual needs, and this embodiment does not limit this.

[0036] In some embodiments, a first mounting groove 18 is provided on the first clamping arm 1, and a second mounting groove 29 is provided on the second clamping arm 2. The two torsion arms of the torsion spring are respectively placed in the first mounting groove 18 and the second mounting groove 29.

[0037] The above describes in detail some embodiments of the material strip breaking device of this utility model. The embodiments are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. Of course, there are more embodiments, which will not be elaborated here.

[0038] In summary, the material strip breaking device of this utility model can quickly break the material strip while ensuring the flatness of the product, thus meeting the customer's requirements for product flatness, improving product yield and work efficiency, and reducing production costs.

[0039] This utility model is not limited to the specific embodiments described above. Any modifications made by those skilled in the art based on the above concept without creative effort shall fall within the protection scope of this utility model.

Claims

1. A strip breaking device, characterized in that, It includes a first clamping arm, a second clamping arm, and an elastic element disposed between the first clamping arm and the second clamping arm. The first clamping arm and the second clamping arm are hinged at one end, and a clamping and positioning structure is provided between the other ends of the first clamping arm and the second clamping arm. The clamping and positioning structure is used to clamp and position the product. Excess material strip on the product extends out from between the first clamping arm and the second clamping arm for breaking off.

2. The strip breaking device according to claim 1, characterized in that, The clamping and positioning structure includes a positioning structure and a clamping structure located around the positioning structure. The positioning structure is used to position the main body of the product, and the clamping structure is used to clamp the material strip connection part of the product.

3. The strip breaking device according to claim 2, characterized in that, The positioning structure includes a contour positioning platform disposed on the first pressing arm and a contour positioning groove disposed on the second pressing arm. The contour positioning platform and the contour positioning groove together form a contour positioning cavity adapted to the product body.

4. The strip breaking device according to claim 2, characterized in that, The material strip connection includes a first material strip connection and a second material strip connection provided on opposite sides of the product body. The pressing structure includes a first pressing plane provided on the first pressing arm and a second pressing plane provided on the second pressing arm. The first pressing plane and the second pressing plane cooperate with each other to press the first material strip connection and the second material strip connection.

5. The strip breaking device according to claim 4, characterized in that, The material strip connection part further includes a third material strip connection part disposed on the product body. The third material strip connection part is located between the first material strip connection part and the second material strip connection part. The pressing structure further includes a third pressing plane disposed on the first pressing arm and a fourth pressing plane disposed on the second pressing arm. The third pressing plane and the fourth pressing plane cooperate with each other to press the third material strip connection part.

6. The strip breaking device according to claim 5, characterized in that, A clamping limit structure is provided between the first clamping arm and the second clamping arm.

7. The strip breaking device according to claim 6, characterized in that, The clamping and limiting structure includes a first limiting platform disposed on the first clamping arm and a second limiting platform disposed on the second clamping arm. The first limiting platform is provided with a first limiting plane, and the second limiting platform is provided with a second limiting plane that cooperates with the first limiting plane.

8. The strip breaking device according to claim 7, characterized in that, The first limiting platform is provided with a clearance groove for avoiding the third material strip connection part, the second limiting platform is provided with a pressing platform for pressing down the third material strip connection part, the third pressing plane is provided at the bottom of the clearance groove, and the fourth pressing plane is provided on the pressing platform.

9. The strip breaking device according to claim 7, characterized in that, The clamping and limiting structure further includes a third limiting platform disposed on the second clamping arm, a third limiting plane disposed on the third limiting platform, and a fourth limiting plane disposed on the first clamping arm that cooperates with the third limiting plane.

10. The strip breaking device according to any one of claims 1 to 9, characterized in that, The first clamping arm and the second clamping arm are hinged together by a pivot. The elastic element is a torsion spring, which is sleeved on the pivot. One torsion arm of the torsion spring is located on the first clamping arm, and the other torsion arm of the torsion spring is located on the second clamping arm.

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