Polishing device for connector pin production

By designing a polishing mechanism and a blower, the problems of low efficiency and inconsistent quality in connector pin production were solved, achieving automated polishing and waste disposal, and improving production efficiency and quality stability.

CN223947563UActive Publication Date: 2026-02-27ZHENJIANG XUANHAO HARDWARE CO LTD
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Patent Information

Application Number
CN202520637551.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-07
Publication Date
2026-02-27
Estimated Expiration
2035-04-07

AI Technical Summary

Technical Problem

Existing polishing equipment for connector pin production suffers from low efficiency, unstable operation, uneven polishing, and inconsistent surface quality, making it difficult to achieve automatic pin delivery and precise control.

Method used

The polishing mechanism, including servo motor-driven drive rollers and driven rollers, combined with alumina polishing belts and conveyor rollers, enables automated feeding and polishing of the pins. It is equipped with a fan and filter screen for waste disposal.

Benefits of technology

The automated polishing of the inserts has been achieved, which has improved production efficiency, reduced human intervention errors, ensured the consistency of polishing quality and the stability of production, and reduced operational risks.

✦ Generated by Eureka AI based on patent content.

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Abstract

The polishing device for connector pin production comprises a base, a connecting plate is fixedly installed at the bottom of the base, a polishing mechanism is arranged on the inner side of the connecting plate, the polishing mechanism comprises a driving roller, a driven roller, a polishing abrasive belt and a conveying roller, a servo motor is fixedly installed on the right side of the connecting plate, and the servo motor is connected with the driving roller. Through the arrangement of the polishing mechanism, in the machining process, during rotation of a conveying roller, thread line segments on the surface of the conveying roller can rotate inwards at the same time, so that a contact pin is driven to be conveyed forwards, at the moment, a servo motor is started to drive a transmission roller at the output end to rotate, and in the rotating process of the transmission roller, a polishing abrasive belt and a driven roller can be driven to rotate; the contact pins are ground through the polishing abrasive belt, high-degree automation is achieved, the contact pins can be automatically pushed forwards in a mechanical mode, manual operation is not needed, the production efficiency is improved, errors caused by manual intervention are reduced, and the operation risk is reduced.
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Description

Technical Field

[0001] This utility model relates to a polishing device for connector pin production, belonging to the technical field of polishing devices. Background Technology

[0002] Connector pins are crucial components of connectors, typically used for electrical connections and signal transmission. Their function is to transmit circuits or signals by inserting them into the connector's socket. Pins are generally made of highly conductive materials (such as copper or copper alloys), and their surfaces may be plated with gold or silver to improve conductivity and corrosion resistance. Pins provide electrical contact within the connector, and rough or defective surfaces can lead to poor contact, increased resistance, and overheating. Polishing removes tiny burrs, oxide layers, and irregular defects from the pin surface; therefore, polishing equipment is used during connector pin manufacturing to polish their surfaces.

[0003] Authorization announcement number (CN 212553268 U) discloses a polishing device for connector pin production, relating to the technical field of polishing devices. To solve the problems of slow polishing efficiency and low structural flexibility of existing polishing devices for connector pin production, a support stabilizing plate is installed on the top of the bottom support box, and the support stabilizing plate is connected to the bottom support box by bolts. An upper protective fixing cover is installed at the middle position above the support stabilizing plate. A feeding hopper is installed above the upper protective fixing cover. A vibration motor is installed below the front end of the feeding hopper. A side vacuum cleaner is installed on one side outside the upper protective fixing cover. A dust collection box is installed at the front end of the side vacuum cleaner. An exhaust hole is provided above one side of the side vacuum cleaner. A pin storage is installed at the middle position of the front end of the bottom support box.

[0004] Existing pin polishing equipment requires manual operation or the use of a simple rotating polishing disc during use. However, the automatic feeding and precise control of the pins are often difficult to achieve, which may lead to unstable operation, uneven polishing, and low efficiency. Furthermore, due to uneven pin feeding, traditional polishing equipment results in inconsistent surface quality and unstable polishing effects, requiring frequent manual intervention and affecting processing efficiency.

[0005] To address this, a polishing device for connector pin manufacturing is proposed. Utility Model Content

[0006] In view of this, the present invention provides a polishing device for connector pin production to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial alternative.

[0007] The technical scheme of the utility model is achieved as follows: a polishing device for connector pin production, comprising a base, a connecting plate is fixedly installed at the bottom of the base, a polishing mechanism is arranged at the inner side of the connecting plate, the polishing mechanism comprises a transmission roller, a driven roller, a polishing abrasive belt and a conveying roller, a servo motor is fixedly installed at the right side of the connecting plate, the output end of the servo motor is fixedly connected with the transmission roller, the transmission roller is movably connected to the inner side of the connecting plate, the driven roller is movably connected to the inner side of the connecting plate, and the driven roller is located at the bottom of the transmission roller, the polishing abrasive belt is located at the outer side of the transmission roller and the driven roller, conveying rollers are arranged at the front and back sides of the inner side of the base, and a gap for the pin to pass through is reserved between the polishing abrasive belt and the conveying rollers.

[0008] Further preferably, the polishing abrasive belt is made of aluminum oxide, and the particle size is P180-P240.

[0009] Further preferably, the diameter of the driven roller is greater than that of the transmission roller, and the rotating speed of the transmission roller is greater than that of the driven roller, and the transmission roller and the driven roller are drivingly connected through the polishing abrasive belt.

[0010] Further preferably, the surface of the conveying roller is provided with a thread segment, the two conveying rollers are symmetrically arranged, the two conveying rollers are provided with a driving assembly, and the two conveying rollers can be driven to rotate inwardly, so that the thread segments on the surfaces of the conveying rollers move relatively.

[0011] Further preferably, bearing sleeves are fixedly installed around the inner side of the base, and the left and right ends of the two conveying rollers are located at the inner side of the bearing sleeves.

[0012] Further preferably, a box body is fixedly installed at the right side of the base, a fan is fixedly installed at the rear side of the box body, a connecting pipe is communicated with the front side of the box body, cavities are formed in the inner side of the base, and the other end of the connecting pipe penetrates through the base and is communicated with the inner sides of the three cavities.

[0013] Further preferably, a filter screen is fixedly installed at the inner side of the base, the filter screen is located at the top of the three cavities, and the filter screen is connected with the inner side of the base through bolts and can be disassembled when needed.

[0014] The utility model discloses an embodiment has the following advantages due to adopting the above technical scheme:

[0015] I. This utility model, through the setting of a polishing mechanism, allows the threaded segments on the surface of the conveying roller to rotate inward simultaneously during the processing, thereby driving the insert pin forward. At this time, the servo motor is activated to drive the transmission roller at the output end to rotate. During the rotation of the transmission roller, the polishing sand belt and the driven roller will rotate, and the insert pin will be polished by the polishing sand belt. This achieves a high degree of automation, enabling automatic forward propulsion through mechanical means without manual operation. This not only improves production efficiency but also reduces errors caused by human intervention and lowers operational risks.

[0016] II. This utility model can generate suction by setting up a fan. The suction is guided through the cavity by the connecting pipe and transmitted to the inside of the base, thereby absorbing and treating the waste generated during polishing and preventing the waste from escaping. The filter screen can isolate and filter the dust and waste absorbed by the fan. The filter screen is connected to the base by bolts, which can be easily disassembled and cleaned.

[0017] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional front view structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the three-dimensional rear-view bottom structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the polishing belt structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the conveyor roller structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the filter screen in the disassembled state of this utility model;

[0024] Figure 6 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0025] Label: 1, base; 2, connecting plate; 3, polishing mechanism; 301, servo motor; 302, transmission roller; 303, driven roller; 304, polishing abrasive belt; 305, conveying roller; 306, bearing sleeve; 4, box; 5, fan; 6, connecting pipe; 7, filter screen; 8, cavity. DETAILED DESCRIPTION

[0026] Hereinafter, only certain exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present application. Therefore, the drawings and the description are considered to be essentially exemplary rather than limiting.

[0027] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0028] Example 1

[0029] As Figures 1-6 shown, the embodiment of the utility model provides a kind of polishing device for connector pin production, including base 1, the bottom of base 1 is fixedly installed with connecting plate 2, the inner side of connecting plate 2 is provided with polishing mechanism 3, and polishing mechanism 3 includes transmission roller 302, driven roller 303, polishing abrasive belt 304 and conveying roller 305, the right side of connecting plate 2 is fixedly installed with servo motor 301, the output end of servo motor 301 is fixedly connected with transmission roller 302, transmission roller 302 is movably connected to the inner side of connecting plate 2, driven roller 303 is movably connected to the inner side of connecting plate 2, and driven roller 303 is located at the bottom of transmission roller 302, polishing abrasive belt 304 is located at the outer side of transmission roller 302 and driven roller 303, conveying roller 305 is provided on the front and rear sides of base 1 inner side, and the gap for pin passing is reserved between polishing abrasive belt 304 and conveying roller 305, the material of polishing abrasive belt 304 is aluminum oxide, granularity is P180-P240, the diameter of driven roller 303 is greater than the diameter of transmission roller 302, and the rotational speed of transmission roller 302 is greater than driven roller 303, transmission roller 302 and driven roller 303 are drivenly connected by polishing abrasive belt 304, the surface of conveying roller 305 is provided with thread segment, two conveying rollers 305 are symmetrically arranged, two conveying rollers 305 are equipped with driving assembly, two conveying rollers 305 can be driven to rotate to the inner side, so that the relative motion of the thread segment on the surface of conveying roller 305 is generated, bearing sleeve 306 is fixedly installed on the periphery of base 1 inner side, and the left and right ends of two conveying rollers 305 are located on the inner side of bearing sleeve 306.

[0030] With the polishing mechanism 3 in place, during the processing, the threaded segments on the surface of the conveying roller 305 rotate inwards as it rotates, thereby driving the pin forward. At this time, the servo motor 301 is started to drive the transmission roller 302 at the output end to rotate. During the rotation of the transmission roller 302, the polishing belt 304 and the driven roller 303 will rotate. The polishing belt 304 polishes the pin, achieving a high degree of automation. It can automatically move forward mechanically without manual operation, which not only improves production efficiency but also reduces errors caused by human intervention and lowers operational risks.

[0031] Example 2

[0032] like Figures 1-6 As shown, in one embodiment, a housing 4 is fixedly installed on the right side of the base 1, a fan 5 is fixedly installed on the rear side of the housing 4, a connecting pipe 6 is connected to the front side of the housing 4, a cavity 8 is opened on the inner side of the base 1, and the other end of the connecting pipe 6 passes through the base 1 and connects to the inner side of the three cavities 8. A filter screen 7 is fixedly installed on the inner side of the base 1. The filter screen 7 is located at the top of the three cavities 8. The filter screen 7 is connected to the inner side of the base 1 by bolts. The filter screen 7 can be disassembled by removing the bolts when needed.

[0033] The fan 5 generates suction, which is transmitted through the cavity 8 to the inside of the base 1 via the connecting pipe 6, thereby absorbing and treating the waste generated during polishing and preventing the waste from escaping. The filter screen 7 isolates and filters the dust and waste absorbed by the fan 5, and the filter screen 7 is connected to the base 1 by bolts, which can be easily disassembled and cleaned.

[0034] When this utility model is in operation: After the connector pin is placed on top of the conveying roller 305, the two conveying rollers 305 can be driven to rotate inward simultaneously by the drive component inside the conveying roller 305. While the conveying roller 305 is rotating, the threaded segments on its surface will also rotate inward, thereby driving the pin forward. At this time, the servo motor 301 is started to drive the transmission roller 302 at the output end to rotate. During the rotation of the transmission roller 302, the polishing sand belt 304 and the driven roller 303 will rotate. The polishing sand belt 304 polishes the pin. When waste is generated during polishing, the fan 5 can be started. When the fan 5 is started, it will generate suction to guide the air. When the waste comes into contact with the suction, it will be transferred downward and filtered by the filter screen 7 to prevent dust from escaping into the air.

[0035] The above merely describes a specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can easily think of various changes or replacements within the technical range disclosed by the present application, which should be encompassed in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A polishing device for connector pin production, comprising a base (1), characterized in that: The bottom of the base (1) is fixedly provided with a connecting plate (2), the inner side of the connecting plate (2) is provided with a polishing mechanism (3), the polishing mechanism (3) comprises a transmission roller (302), a driven roller (303), a polishing abrasive belt (304) and a conveying roller (305), the right side of the connecting plate (2) is fixedly provided with a servo motor (301), the output end of the servo motor (301) is fixedly connected with the transmission roller (302), the transmission roller (302) is movably connected to the inner side of the connecting plate (2), the driven roller (303) is movably connected to the inner side of the connecting plate (2), and the driven roller (303) is located at the bottom of the transmission roller (302), the polishing abrasive belt (304) is located at the outer side of the transmission roller (302) and the driven roller (303), the front and rear sides of the inner side of the base (1) are provided with conveying rollers (305), and gaps for inserting pins are reserved between the polishing abrasive belt (304) and the conveying rollers (305).

2. The polishing device for connector pin production according to claim 1, characterized in that: The polishing abrasive belt (304) is made of aluminum oxide and has a particle size of P180-P240.

3. The polishing device for connector pin production of claim 1, wherein: The diameter of the driven roller (303) is greater than that of the transmission roller (302), and the rotation speed of the transmission roller (302) is greater than that of the driven roller (303), and the transmission roller (302) and the driven roller (303) are drivingly connected through the polishing abrasive belt (304).

4. The polishing device for connector pin production of claim 1, wherein: The surface of the conveying roller (305) is provided with a thread segment, the two conveying rollers (305) are symmetrically arranged, the two conveying rollers (305) are provided with a driving assembly, and the two conveying rollers (305) can be driven to rotate inward, so that the thread segments on the surfaces of the conveying rollers (305) move relatively.

5. The polishing device for connector pin production of claim 1, wherein: The inner side of the base (1) is fixedly provided with a bearing sleeve (306) around, and the left and right ends of the two conveying rollers (305) are located in the inner side of the bearing sleeve (306).

6. The polishing device for connector pin production of claim 1, wherein: The right side of the base (1) is fixedly provided with a box body (4), the rear side of the box body (4) is fixedly provided with a fan (5), the front side of the box body (4) is communicated with a connecting pipe (6), the inner side of the base (1) is provided with cavities (8), and one end of the connecting pipe (6) penetrates through the base (1) and communicates with the inner sides of the three cavities (8).

7. The polishing device for connector pin production according to claim 6, characterized in that: The inner side of the base (1) is fixedly provided with a filter screen (7), the filter screen (7) is located at the top of the three cavities (8), and the filter screen (7) is connected to the inner side of the base (1) by bolts and can be disassembled when necessary.

Citation Information

Patent Citations

  • Polishing device for connector pin production

    CN212553268U