Drum paper bullet assembly jig

CN224935786UActive Publication Date: 2026-11-03深圳市云科实业有限公司
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Patent Information

Application Number
CN202522307537.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-31
Publication Date
2026-11-03
Estimated Expiration
2035-10-31

AI Technical Summary

Technical Problem

The assembly of springs and drum paper in existing speaker units relies on manual operation, resulting in low assembly efficiency, inaccurate positioning, and affecting product quality consistency and sound quality.

Method used

Design a jig for assembling paper drums and springs, including a lower mold base and an upper mold base. The paper drum and springs are positioned using placement grooves and stepped surfaces, and are bonded together by pressing surfaces. The assembly accuracy and stability are improved by combining positioning posts and pressing parts.

Benefits of technology

It improves the bonding effect between the spring and the drum paper, ensures the consistency of assembly quality and the ease of operation, meets user needs, and has a wide range of applications.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a drum paper elastic sheet assembly jig, including lower mould base and upper mould base, the upper end of lower mould base is provided with the placement groove for the drum paper to place the positioning and is provided with the step surface for the elastic sheet to place the positioning, the step surface is provided with two and symmetrically sets up in the both sides of placement groove, the upper mould base detachable type sets up in the upper end of lower mould base, the lower end of upper mould base is provided with the pressure bonding surface for with elastic sheet contact to press the elastic sheet and press on the drum paper, thus, utilize the drum paper to place in the placement groove and coat the glue water, place the elastic sheet on the step surface in the positioning, cooperate upper mould base and assemble in lower mould base, make the pressure bonding surface and elastic sheet contact to realize the bonding assembly between the drum paper and elastic sheet, and simultaneously, upper mould base can carry out the pressure maintaining operation to the drum paper and elastic sheet, is favorable for improving the bonding effect between the drum paper and elastic sheet, and the assembly quality is stable and consistent, thereby guarantees the quality of final product, and the application range is wide.
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Description

Technical Field

[0001] This utility model relates to the field of speaker assembly technology, and in particular to a jig for assembling a drum paper spring. Background Technology

[0002] With the development of science and technology, entertainment and leisure have received increasing attention from society, bringing many business opportunities. As the output terminal of audio equipment, the main function of a speaker is to convert electrical signals into sound through loudspeakers. Relying on the sound-enhancing effect of the speaker, it can reproduce the live effect as much as possible. Traditional speakers usually include a cabinet, PCB board, speaker unit and grille. The speaker unit is set inside the cabinet, and its sound output end faces the grille so that the sound of the speaker unit is played outward through the grille.

[0003] The speaker unit includes components such as a spring, diaphragm, bracket, magnet, and voice coil. The assembly and connection between the spring and diaphragm is an extremely critical and precise process. Existing spring and diaphragm assembly processes generally involve manual assembly. The operator first applies glue to a designated position on the diaphragm, then manually places the spring on the diaphragm, roughly aligning it by visual inspection, and finally applies pressure with fingers or simple auxiliary tools to press the two together. This assembly of the spring and diaphragm relies on the operator's eyesight and feel, resulting in low assembly efficiency. Furthermore, it is difficult to ensure that the assembly position of the spring and diaphragm is accurate in each product, leading to errors in the assembly position and resulting in inconsistent quality of the final product. This affects the sound quality of the product, fails to meet user needs, and has a limited range of applications.

[0004] Therefore, it is necessary to design a new technical solution to solve the above problems. Utility Model Content

[0005] In view of this, the present invention addresses the deficiencies of the existing technology and its main objective is to provide a paper drum and spring assembly fixture. The fixture utilizes paper drums placed on a placement groove and coated with adhesive. Springs are then positioned on a stepped surface, and an upper mold base is assembled with a lower mold base to ensure contact between the pressing surface and the spring, thereby achieving adhesive assembly between the paper drum and the spring. Simultaneously, the upper mold base can maintain pressure on the paper drum and the spring, which improves the bonding effect between them and has a wide range of applications.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A paper drum spring assembly fixture includes a lower mold base and an upper mold base. The upper end of the lower mold base is provided with a placement groove for placing and positioning the paper drum and a stepped surface for placing and positioning the spring. Two stepped surfaces are provided and symmetrically arranged on both sides of the placement groove. The upper mold base is detachably disposed on the upper end of the lower mold base. The lower end of the upper mold base is provided with a pressing surface for contacting the spring to press the spring onto the paper drum.

[0007] As a preferred embodiment, the stepped surface is provided with a first positioning post, which is used to be fitted and positioned with the positioning hole of the spring piece. Correspondingly, the lower end of the upper mold base is provided with a first positioning groove for matching and connecting with the positioning post.

[0008] As a preferred embodiment, the pressing surface is provided with a first pressing part and a second pressing part. The first pressing part extends circumferentially along the edge of the drum paper, and the second pressing part is provided in the inner circumference of the first pressing part. The second pressing part is provided with a plurality of points that are arranged at intervals corresponding to the positions where the spring sheet connects to the drum paper.

[0009] As a preferred embodiment, the lower end of the upper mold base is further provided with a positioning protrusion, and the upper end of the lower mold base is correspondingly provided with a second positioning groove that matches and connects with the positioning protrusion. The second positioning groove is located between the placement groove and the step surface.

[0010] As a preferred embodiment, the upper edge of the lower mold base is provided with an upwardly extending second positioning post, and the lower end of the upper mold base is provided with a third positioning groove that matches the second positioning post, with the second positioning post adapted to be positioned on the third positioning groove.

[0011] As a preferred embodiment, the placement slots are provided in a six-slot arrangement along the length of the lower mold base, and correspondingly, the step surface is provided in a twelve-slot arrangement, each corresponding to one of the six placement slots.

[0012] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution, it mainly achieves bonding and assembly between the drum paper and the spring sheet by designing each component, placing the drum paper on the placement groove and applying glue, and then placing and positioning the spring sheet on the stepped surface. The upper mold base is then assembled with the lower mold base so that the pressing surface contacts the spring sheet, thereby realizing the bonding and assembly between the drum paper and the spring sheet. At the same time, the upper mold base can perform a pressure holding operation on the drum paper and the spring sheet, which is beneficial to improving the bonding effect between the drum paper and the spring sheet. The assembly quality is stable and consistent, thus ensuring the quality of the final product. It is simple to operate, easy to assemble, meets the user's needs, and has a wide range of applications. Secondly, the first positioning post is designed to ensure accurate positioning of the spring sheet on the stepped surface. The matching connection of the first positioning groove and the first positioning post ensures accurate assembly positioning between the upper and lower mold bases, improving the bonding and assembly effect between the paper drum and the spring sheet. Simultaneously, the positioning protrusion and the second positioning groove enable foolproof assembly connection of the upper mold base on the lower mold base, guaranteeing the assembly effect between the paper drum and the spring sheet. Furthermore, the second positioning post and the third positioning groove enable multi-positioning assembly between the upper and lower mold bases, resulting in excellent usability. Furthermore, the first pressing part and the second pressing part are provided to enable precise pressing operations between the corresponding pressing parts and the bonding positions of the spring sheet and the drum paper, thereby improving the bonding effect between the drum paper and the spring sheet, and thus ensuring consistent quality of the final product and strong practicality.

[0013] To more clearly illustrate the structural features, technical means, and specific objectives and functions of this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0014] Figure 1 This is a perspective view of an embodiment of the present utility model; Figure 2 This is an exploded view of an embodiment of the present utility model; Figure 3 This is a cross-sectional view of an embodiment of the present utility model; Figure 4 This is a schematic diagram of the upper mold base according to an embodiment of the present utility model; Explanation of reference numerals in the attached diagram: 11. Lower mold base; 111. Placement groove; 112. Step surface; 113. First positioning post; 114. Second positioning groove; 115. Second positioning post; 12. Upper mold base; 121. Pressing surface; 122. First positioning groove; 123. Positioning protrusion; 124. Third positioning groove; 125. First pressing part; 126. Second pressing part; 13. Drum paper; 14. Spring piece; 141. Positioning hole. Detailed Implementation

[0015] Please refer to Figures 1 to 4 As shown, it illustrates the specific structure of an embodiment of the present invention.

[0016] A jig for assembling paper drum springs includes a lower mold base 11 and an upper mold base 12. The upper end of the lower mold base 11 is provided with a placement groove 111 for placing and positioning paper drums 13 and a stepped surface 112 for placing and positioning springs 14. Two stepped surfaces 112 are provided and symmetrically arranged on both sides of the placement groove 111. The upper mold base 12 is detachably disposed on the upper end of the lower mold base 11. The lower end of the upper mold base 12 is provided with a pressing surface 121 for contacting the springs to press the springs onto the paper drums. In this embodiment, six placement slots 111 are provided and arranged at intervals along the length direction of the lower mold base 11. Correspondingly, twelve step surfaces 112 are provided and arranged symmetrically to correspond to the six placement slots 111 respectively. In use, first place the drum paper on the placement groove and apply glue to the position where it connects to the spring sheet. Then, position the two ends of the spring sheet on the two stepped surfaces. Next, assemble the upper mold base onto the lower mold base so that the pressing surface of the upper mold base contacts the spring sheet to hold it in place, thus achieving the assembly connection between the spring sheet and the drum paper. In this way, through the design of each component, by placing the drum paper on the placement groove and applying glue, and then positioning the spring sheet on the stepped surface, and with the upper mold base assembled onto the lower mold base so that the pressing surface contacts the spring sheet, the bonding assembly between the drum paper and the spring sheet is achieved. At the same time, the upper mold base can maintain pressure on the drum paper and the spring sheet, which helps to improve the bonding effect between the drum paper and the spring sheet, resulting in stable and consistent assembly quality, thus ensuring the quality of the final product. It is simple to operate, easy to assemble, meets the user's needs, and has a wide range of applications.

[0017] Furthermore, the stepped surface 112 is provided with a first positioning post 113, which is used to be adapted to the positioning hole 141 of the spring piece 14 for positioning. Correspondingly, the lower end of the upper mold base 12 is provided with a first positioning groove 122 for matching and connecting with the positioning post. Thus, the setting of the first positioning post is to facilitate the accurate placement and positioning of the spring piece on the stepped surface. The matching and connection of the first positioning groove and the first positioning post ensures accurate assembly positioning between the upper mold base and the lower mold base, which is beneficial to improving the bonding and assembly effect between the paper drum and the spring piece.

[0018] Furthermore, the lower end of the upper mold base 12 is provided with a positioning protrusion 123, and the upper end of the lower mold base 11 is provided with a second positioning groove 114 that matches and connects with the positioning protrusion. The second positioning groove 114 is located between the placement groove 111 and the step surface 112. Preferably, the upper edge of the lower mold base 11 is also provided with an upwardly extending second positioning post 115, and the lower end of the upper mold base 12 is provided with a third positioning groove 124 that matches the second positioning post. The second positioning post 115 is adapted to be positioned on the third positioning groove 124. Thus, the positioning protrusion and the second positioning groove are provided to realize the foolproof assembly connection of the upper mold base on the lower mold base, ensuring the assembly effect between the paper drum and the spring sheet. Moreover, the second positioning post and the third positioning groove are provided to realize multiple positioning assembly between the upper mold base and the lower mold base, resulting in good usability.

[0019] Furthermore, the pressing surface 121 is provided with a first pressing part 125 and a second pressing part 126. The first pressing part 125 extends circumferentially along the edge of the drum paper 13, and the second pressing part 126 is disposed in the inner circumference of the first pressing part 125. The second pressing part 126 is provided with a plurality of positions corresponding to the connection between the spring sheet 14 and the drum paper 13, which are arranged at intervals. In this way, the precise pressing operation of the corresponding pressing part with the spring sheet and the drum paper is achieved, thereby improving the bonding effect between the drum paper and the spring sheet, and thus ensuring the consistent quality of the final product and strong practicality.

[0020] The key design feature of this utility model lies in its component design. It utilizes a diaphragm placed on a placement groove and glued, followed by the placement and positioning of a spring sheet on a stepped surface. The upper mold base is then assembled with the lower mold base, allowing the pressing surface to contact the spring sheet, thus achieving adhesive bonding between the diaphragm and the spring sheet. Simultaneously, the upper mold base provides pressure maintenance for the diaphragm and spring sheet, improving the bonding effect and ensuring consistent assembly quality. This guarantees the quality of the final product. The design is simple to operate, easy to assemble, meets user needs, and has a wide range of applications. Secondly, the first positioning post is designed to ensure accurate positioning of the spring sheet on the stepped surface. The matching connection of the first positioning groove and the first positioning post ensures accurate assembly positioning between the upper and lower mold bases, improving the bonding and assembly effect between the paper drum and the spring sheet. Simultaneously, the positioning protrusion and the second positioning groove enable foolproof assembly connection of the upper mold base on the lower mold base, guaranteeing the assembly effect between the paper drum and the spring sheet. Furthermore, the second positioning post and the third positioning groove enable multi-positioning assembly between the upper and lower mold bases, resulting in excellent usability. Furthermore, the first pressing part and the second pressing part are provided to enable precise pressing operations between the corresponding pressing parts and the bonding positions of the spring sheet and the drum paper, thereby improving the bonding effect between the drum paper and the spring sheet, and thus ensuring consistent quality of the final product and strong practicality.

[0021] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A jig for assembling paper springs, characterized in that: It includes a lower mold base and an upper mold base. The upper end of the lower mold base is provided with a placement groove for placing and positioning the drum paper and a stepped surface for placing and positioning the spring sheet. There are two stepped surfaces, which are symmetrically arranged on both sides of the placement groove. The upper mold base is detachably installed on the upper end of the lower mold base. The lower end of the upper mold base is provided with a pressing surface for contacting the spring sheet to press the spring sheet onto the drum paper.

2. The assembly fixture for the paper spring according to claim 1, characterized in that: The stepped surface is provided with a first positioning post, which is used to be adapted to the positioning hole of the spring piece for positioning. Correspondingly, the lower end of the upper mold base is provided with a first positioning groove for matching and connecting with the positioning post.

3. The assembly fixture for the paper spring according to claim 1, characterized in that: The pressing surface is provided with a first pressing part and a second pressing part. The first pressing part extends circumferentially along the edge of the drum paper. The second pressing part is located in the inner circumference of the first pressing part. The second pressing part is provided with a plurality of points that are arranged at intervals corresponding to the positions where the spring sheet connects to the drum paper.

4. The assembly fixture for the paper spring according to claim 1, characterized in that: The lower end of the upper mold base is also provided with a positioning protrusion, and the upper end of the lower mold base is correspondingly provided with a second positioning groove that matches and connects with the positioning protrusion. The second positioning groove is located between the placement groove and the step surface.

5. The assembly fixture for the paper spring according to claim 1, characterized in that: The upper edge of the lower mold base is provided with an upwardly extending second positioning post, and the lower end of the upper mold base is provided with a third positioning groove that matches the second positioning post. The second positioning post is adapted to be positioned on the third positioning groove.

6. The paper spring assembly fixture according to claim 1, characterized in that: The placement slots are provided in six ways and are arranged at intervals along the length of the lower mold base. Correspondingly, the step surface is provided in twelve ways and is arranged symmetrically to correspond to the six placement slots.