Earplug rubbing device

By designing an earplug kneading device with a conveyor belt and multiple adjustable kneading mechanisms, the problems of poor applicability and low efficiency of existing equipment have been solved, enabling efficient kneading and mass production of different earplugs.

CN224224256UActive Publication Date: 2026-05-12JIANGYIN SIAN PLASTIC PROTECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGYIN SIAN PLASTIC PROTECH CO LTD
Filing Date
2025-06-10
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing kneading equipment is poorly suited for processing earplugs with different material ratios and sizes, has low kneading efficiency, and is prone to causing earplugs to roll out, thus failing to meet the needs of mass automated production.

Method used

An earplug kneading device was designed, comprising a conveyor belt, a kneading mechanism, and an adjustment mechanism. The earplugs are transported by the conveyor belt and kneaded using multiple kneading mechanisms and adjustable kneading plates. Combined with the adjustment of the rotation speed and direction of the turntable, efficient kneading of different earplugs can be achieved.

Benefits of technology

It improves the efficiency and adaptability of earplug kneading, ensuring that earplugs of different sizes and materials do not roll out during the kneading process, thus meeting the needs of mass production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an earplug kneading device which comprises a rack, a conveying belt and a kneading mechanism. The number of the rubbing mechanisms is more than one, each rubbing mechanism comprises a cover body, a driving piece, a rubbing plate and a connecting assembly, and the driving piece is connected with the connecting assembly through the cover body; the connecting assembly comprises a rotating disc, a connecting shaft, a connecting block and a first fastener. The discharging end and the feeding end of the washboard are each provided with an inclined face inclining upwards, and baffles inclining upwards are arranged on the two sides of the washboard. The earplug processing device has the advantages that the earplugs are rubbed on line, the earplug processing effect is improved, and the earplug processing requirements of various sizes and materials are met.
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Description

Technical Field

[0001] This utility model relates to the field of earplug manufacturing and processing technology, and in particular to an earplug kneading device. Background Technology

[0002] In the production of silicone earplugs, kneading is a crucial step, primarily aimed at ensuring material uniformity, plasticity, and the performance of the final product. Therefore, to meet the needs of mass automated production of earplugs, existing kneading equipment uses a reciprocating rotating washboard to knead the earplugs. However, this method has poor applicability for kneading earplugs with different material ratios and sizes, and its kneading efficiency is low, with many earplugs rolling out from the sides of the washboard. Further improvements to the structure of existing kneading equipment are needed. Utility Model Content

[0003] The purpose of this invention is to provide an earplug rubbing device that can improve the efficiency of earplug rubbing.

[0004] To achieve the above-mentioned utility model objectives, this utility model provides an earplug kneading device, including a frame, a conveyor belt, and a kneading mechanism;

[0005] The conveyor belt is connected to the frame, the discharge end of the conveyor belt is inclined downward, and guide plates are provided on both sides of the conveyor belt, with the guide plates located at the discharge end of the conveyor belt;

[0006] The number of the kneading mechanism is one or more, and the kneading mechanism includes a cover, a driving component, a kneading board, and a connecting component. The driving component is connected to the connecting component through the cover.

[0007] The connecting assembly includes a turntable, a connecting shaft, a connecting block, and a first fastener. The turntable is connected to the driving component. The turntable is provided with an adjustment groove. The connecting shaft is detachably connected to the turntable through the first fastener and the adjustment groove.

[0008] The rubbing plate is connected to the connecting shaft via the connecting block. Both the discharge end and the feed end of the rubbing plate are provided with upward inclined surfaces, and both sides of the rubbing plate are provided with upward inclined baffles.

[0009] As a further improvement to the utility model, an adjustment mechanism is provided between the cover and the frame.

[0010] Furthermore, a guide rod is provided between the cover and the frame.

[0011] As a further improvement of the utility model, the connecting block is connected to the washboard by a second fastener.

[0012] Furthermore, the top of the washboard is provided with a connecting plate, the washboard is connected to the connecting block through the connecting plate, and side plates are provided on both sides of the connecting plate.

[0013] Furthermore, the washboard is a transparent board.

[0014] This utility model discloses an earplug kneading device. Earplugs to be processed are placed in batches on the feed end of a conveyor belt for online transport. A turntable rotates under the drive of a driving component, and a connecting block eccentrically mounted on the turntable rotates accordingly. A kneading plate connected to the block kneads the earplugs below. The kneading amplitude can be adjusted by changing the position of the connecting shaft on the turntable, in conjunction with the turntable's speed and direction, according to process requirements. Furthermore, having multiple kneading mechanisms allows for improved earplug kneading effectiveness by setting different directions of the kneading plates, compared to a single kneading mechanism.

[0015] The advantages of this earplug rubbing device compared to existing technologies are as follows:

[0016] This technology enables online earbud kneading, improving earbud processing effectiveness and adapting to the processing needs of earbuds of various sizes and materials. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an earplug kneading device according to the present invention;

[0018] Figure 2 This is a schematic diagram of the washboard connection structure. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0020] like Figure 1-2 As shown, the present invention provides an earplug kneading device, which includes a frame 1, a conveyor belt 2, and a kneading mechanism 3;

[0021] The conveyor belt 2 is connected to the frame 1. The discharge end of the conveyor belt 2 is inclined downward to facilitate material unloading. Guide plates 21 are provided on both sides of the conveyor belt 2. The guide plates 21 are located at the discharge end of the conveyor belt 2. Since the earplugs after kneading are spherical or elliptical, the guide plates 21 play a guiding role. The earplugs are discharged between the two guide plates 21 to prevent batches of earplugs from rolling out of the conveyor belt 2.

[0022] The number of kneading mechanisms 3 is more than one. The kneading mechanism 3 includes a cover 31, a drive component 32, a rubbing board 34, and a connecting component 35. The drive component 32 is connected to the connecting component 35 through the cover 31.

[0023] An adjustment mechanism 33 is connected between the cover 31 and the frame 1. The adjustment mechanism 33 can be an existing screw adjustment assembly. By rotating the screw, the height of the cover 31 can be adjusted. A guide rod 311 is provided between the cover 31 and the frame 1. The cover 31 moves up and down along the guide rod 311. The guide rod 311 guides the cover 31 and prevents the entire rubbing mechanism 3 from shifting, which would affect the rubbing effect of the earplugs.

[0024] The connecting assembly 35 includes a turntable 351, a connecting shaft 352, a connecting block 353, and a first fastener 355. The turntable 351 is connected to the driving component 32. The turntable 351 is provided with an adjustment groove 354. The connecting shaft 352 is detachably connected to the turntable 351 through the first fastener 355 and the adjustment groove 354.

[0025] The rubbing plate 34 is connected to the connecting shaft 352 via the connecting block 353. Both the discharge end and the feed end of the rubbing plate 34 are provided with upward inclined surfaces 341 to prevent the earplugs from getting stuck at the discharge end and the feed end of the rubbing plate 34. Both sides of the rubbing plate 34 are provided with upward inclined baffles 342. The baffles 342 block the earplugs below the rubbing plate 34 to prevent the earplugs from rolling out from both sides of the rubbing plate 34 and getting stuck in the gap between the conveyor belt 2 and the frame 1 during the rubbing process.

[0026] After repeated use, the bottom of the washboard 34 will retain a significant amount of silicone, requiring regular cleaning. The connecting block 353 is connected to the washboard 34 via a second fastener 356, allowing the washboard 34 to be assembled and disassembled by tightening the second fastener 356. The top of the washboard 34 has a connecting plate 357, which connects the washboard 34 to the connecting block 353. Side plates 358 are located on both sides of the connecting plate 357. Since the washboards 34 on the production line are generally large, they can easily slip during manual assembly and disassembly; holding the side plates 358 facilitates this process.

[0027] The scouring plate 34 is a transparent plate, which allows the operator to intuitively observe the material scouring situation below the scouring plate 34 and also facilitates timely cleaning of the bottom of the scouring plate 34.

[0028] This invention discloses an earplug kneading device. Earplugs to be processed are placed in batches on the feed end of a conveyor belt 2 for online transport. A turntable 351 rotates under the drive of a drive unit 32 (an existing device, which can be a motor). A connecting block 353, eccentrically mounted on the turntable 351, rotates accordingly. A kneading plate 34 connected to the block kneads the earplugs below. The kneading amplitude can be adjusted by changing the position of the connecting shaft 352 on the turntable 351, according to process requirements and in conjunction with the rotation speed and direction of the turntable 351. Furthermore, having multiple kneading mechanisms 3 allows for improved earplug kneading effect by setting different directions of the kneading plates 34, compared to a single kneading mechanism 3.

[0029] The preferred embodiments of this utility model have been described in detail above, but this utility model is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this utility model, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. An earplug kneading device, characterized in that, Includes the frame, conveyor belt, and kneading mechanism; The conveyor belt is connected to the frame, the discharge end of the conveyor belt is inclined downward, and guide plates are provided on both sides of the conveyor belt, with the guide plates located at the discharge end of the conveyor belt; The number of the kneading mechanism is one or more, and the kneading mechanism includes a cover, a driving component, a kneading board, and a connecting component. The driving component is connected to the connecting component through the cover. The connecting assembly includes a turntable, a connecting shaft, a connecting block, and a first fastener. The turntable is connected to the driving component. The turntable is provided with an adjustment groove. The connecting shaft is detachably connected to the turntable through the first fastener and the adjustment groove. The rubbing plate is connected to the connecting shaft via the connecting block. Both the discharge end and the feed end of the rubbing plate are provided with upward inclined surfaces, and both sides of the rubbing plate are provided with upward inclined baffles.

2. The earplug kneading device as described in claim 1, characterized in that, An adjustment mechanism is connected between the cover and the frame.

3. The earplug kneading device as described in claim 2, characterized in that, A guide rod is provided between the cover and the frame.

4. The earplug kneading device as described in claim 1, characterized in that, The connecting block is connected to the washboard via a second fastener.

5. The earplug kneading device as described in claim 4, characterized in that, The top of the washboard is provided with a connecting plate, and the washboard is connected to the connecting block through the connecting plate. Side plates are provided on both sides of the connecting plate.

6. The earplug kneading device as described in claim 4, characterized in that, The washboard is a transparent board.