Feeding device for solder paste processing

By using a double-layer nested structure and an electric heating tube design, the problems of feed rate adjustment and temperature control in the solder paste processing feeding device are solved, achieving material flowability and equipment stability, and reducing maintenance complexity and cost.

CN223779219UActive Publication Date: 2026-01-09SHENZHEN TONGFANG ELECTRONGIC NEW MATERIAL CO LTD
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Patent Information

Application Number
CN202520385888.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2026-01-09
Estimated Expiration
2035-03-06

AI Technical Summary

Technical Problem

Existing solder paste processing feeding devices are difficult to adjust the feed rate according to demand, and are prone to material condensation when the temperature changes, affecting the conveying quality and equipment stability.

Method used

The conveying pipe fitting adopts a double-layer nested structure, with an electric heating tube installed between the inner and outer pipe bodies. Combined with the flexible pipe structure and flange connection, it ensures the fluidity and structural flexibility of the material during the conveying process and avoids condensation.

Benefits of technology

It enables flexible adjustment of the feed rate, maintains material flowability, avoids condensation, ensures conveying quality and equipment stability, and reduces maintenance complexity and cost.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a feeding device for solder paste processing, which relates to the technical field of solder paste processing and comprises a conveying pipe fitting and a flexible pipe structure, the flexible pipe structure is mounted at one end of the conveying pipe fitting, an assembly pipe fitting is mounted at one end, far away from the flexible pipe structure, of the conveying pipe fitting, and a feeding hopper is mounted at the top of the assembly pipe fitting. And a material pushing assembly is mounted in the middle of the assembling pipe fitting. According to the feeding device for solder paste processing, the electric heating pipes are annularly distributed and installed between the outer pipe body and the inner pipe body which are of a double-layer structure, by means of operation of the structures of the electric heating pipes, it can be guaranteed that materials conveyed in the conveying pipe fitting are kept in a molten state to the maximum extent, and the situation that subsequent processing goes wrong due to the unnecessary condensation problem is avoided; and due to the structural arrangement of the flexible pipe structure, the structural flexibility of connection between the whole device and downstream processing equipment can be ensured to the greatest extent, and the limitation of connection between the equipment caused by structural interference is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of solder paste processing technology, specifically to a feeding device for solder paste processing. Background Technology

[0002] Solder paste processing refers to the process of processing raw materials such as solder powder, resin, acidic resin, and flux into solder paste through a series of technological steps. Solder paste is a material used in the manufacture and maintenance of electronic components, and it has the functions of protection, lubrication, and thermal conductivity.

[0003] For example, utility model application No. 202320409168.2 discloses a continuous feeding device for solder paste processing. This feeding device, through the cooperation between the movable adjusting block component and the positioning pressure rod component, enables the positioning pressure rod component to position the movable adjusting block by rotation. This achieves the effect of quantitatively controlling the amount of material sucked by the suction cylinder by adjusting the position of the movable adjusting block, solving the problem that current continuous feeding devices for solder paste processing have a single feeding amount each time, making it difficult to adjust the feeding amount according to needs. However, similar to the feeding device in the above document, considering that the conveyed material needs to maintain a certain degree of fluidity, it is necessary to provide a certain degree of constant temperature environment for the conveyed material to avoid unnecessary condensation due to temperature loss inside the pipeline structure, which could lead to blockage of the pipeline structure.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and proposed a feeding device for solder paste processing. Utility Model Content

[0005] The purpose of this invention is to provide a feeding device for solder paste processing to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a feeding device for solder paste processing, comprising a feeding tube and a flexible tube structure, wherein a flexible tube structure is installed at one end of the feeding tube, and an assembly tube is installed at the end of the feeding tube away from the flexible tube structure, and a feeding hopper is installed at the top of the assembly tube, and a pushing component is installed in the middle of the assembly tube. The feeding tube comprises an outer tube body, an inner tube body, an electric heating tube, and a combined ring frame, wherein an inner tube body is disposed inside the outer tube body, and an electric heating tube is disposed between the inner tube body and the outer tube body, and combined ring frames are installed at both ends of the outer tube body.

[0007] Furthermore, the electric heating tubes are arranged in a circular array between the inner tube body and the outer tube body in three sets at equal intervals, and the combined ring frame is connected to the outer tube body and the inner tube body by flanges.

[0008] Furthermore, the flexible tube structure includes an expansion joint, a protective sleeve, and a connecting ring. The expansion joint is covered with a protective sleeve, and connecting rings are installed at both ends of the expansion joint.

[0009] Furthermore, the expansion joint is flange-connected to the combined ring frame via a connecting ring at one end, and the expansion joint and the connecting ring are fixedly connected.

[0010] Furthermore, the assembly pipe includes an auxiliary pipe body, a feed inlet, and a support shaft bracket. The feed inlet is provided at the top of the auxiliary pipe body, and the support shaft bracket is installed in the middle of the end of the auxiliary pipe body away from the material conveying pipe.

[0011] Furthermore, the auxiliary pipe body is connected to one end of the conveying pipe through a flange structure, and the auxiliary pipe body and the feed inlet are welded together. Moreover, the top of the feed inlet is connected to the feed hopper through a flange structure.

[0012] Furthermore, the feeding assembly includes a support frame, a servo motor, a gearbox, an auger, and an anti-stick coating. The servo motor is horizontally mounted at one end of the support frame, and the gearbox is mounted at the power output end of the servo motor. The end of the gearbox away from the servo motor is horizontally connected to the auger, and the surface of the auger is coated with an anti-stick coating.

[0013] Furthermore, the auger is horizontally positioned inside the conveying pipe, and one end of the auger is connected to the power output end of the gearbox via a coupling.

[0014] This utility model provides a feeding device for solder paste processing, which has the following beneficial effects:

[0015] 1. This utility model, by setting an outer tube and an inner tube with a double-layer nested structure, gives the entire material conveying pipe fitting good structural insulation, thereby minimizing heat loss of the internal material during conveying and preventing condensation. At the same time, by circumferentially arranging an electric heating tube between the outer and inner tubes, the operation of the electric heating tube provides an effective heating effect for the entire material conveying pipe fitting. This method can maximize the preservation of the material's fluidity during conveying and further avoid varying degrees of structural condensation caused by temperature changes or heat loss, which would affect the downstream processing equipment's processing of solder paste. The use of the above structure can effectively ensure the material conveying quality of the entire device and ensure the stability of material processing.

[0016] 2. This utility model features a flexible pipe structure installed at one end of the conveying pipe fitting. Utilizing the inherent structural characteristics of the expansion joint, the connecting ring at the end furthest from the conveying pipe fitting can be adjusted to any angle within a certain range. This structure allows for flexible adjustments and connections based on downstream processing equipment, avoiding unnecessary structural interference caused by the fixed structure of conventional pipelines, or structural impacts on the ease of connection and assembly. Furthermore, the auxiliary pipe body has a flanged inlet at its top, enabling structural combination or disassembly with the feed hopper. This structure also allows for the replacement of the feed hopper with a suitable pipe structure or other feeding structures based on the needs of the conveyed material or the upstream equipment, thus ensuring the flexibility of the device's operation.

[0017] 3. This utility model, by connecting the conveying pipe fittings, flexible pipe structure, and assembly pipe fittings with flange structure, can effectively ensure the stability, firmness, and sealing of the connection between the structures. On the other hand, it can also make the structures easy to disassemble and have a modular structure setting. This can reduce the complexity of maintenance operations and reduce the overall maintenance cost of the equipment to a certain extent. In addition, since the outer surface of the auger is coated with an anti-stick coating, it can also avoid unnecessary structural adhesion during the material pushing process, thereby reducing the complexity of subsequent maintenance of the equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the axial side view of the main body of a feeding device for solder paste processing according to the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of a feeding device for solder paste processing according to the present invention.

[0020] Figure 3 This is a three-dimensional structural diagram of a feeding pipe fitting for a solder paste processing device according to the present invention;

[0021] Figure 4 This is a three-dimensional structural diagram of an assembly pipe fitting for a solder paste feeding device according to the present invention.

[0022] Figure 5 This is a three-dimensional structural diagram of a feeding component of a feeding device for solder paste processing according to the present invention.

[0023] In the diagram: 1. Material conveying pipe fitting; 101. Outer pipe body; 102. Inner pipe body; 103. Electric heating tube; 104. Combined ring frame; 2. Flexible pipe structure; 201. Expansion joint; 202. Protective sleeve; 203. Connecting ring; 3. Assembly pipe fitting; 301. Auxiliary pipe body; 302. Feed inlet; 303. Support shaft frame; 4. Feed hopper; 5. Pushing assembly; 501. Support frame; 502. Servo motor; 503. Gearbox; 504. Screwdriver; 505. Anti-stick coating. Detailed Implementation

[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0025] like Figures 1 to 5 As shown, a feeding device for solder paste processing includes a feeding tube 1 and a flexible tube structure 2. The flexible tube structure 2 is installed at one end of the feeding tube 1, and an assembly tube 3 is installed at the end of the feeding tube 1 away from the flexible tube structure 2. A feeding hopper 4 is installed at the top of the assembly tube 3, and a pushing assembly 5 is installed in the middle of the assembly tube 3. The feeding tube 1 includes an outer tube body 101, an inner tube body 102, an electric heating tube 103, and a combined ring frame 104. The inner tube body 102 is disposed inside the outer tube body 101, and the electric heating tube 103 is disposed between the inner tube body 102 and the outer tube body 101. The two ends of the outer tube body 101... All are equipped with a combined ring frame 104. The electric heating tubes 103 are arranged in a circular array between the inner tube body 102 and the outer tube body 101, and are arranged in three sets at equal intervals. The combined ring frame 104 is connected to the outer tube body 101 and the inner tube body 102 by flanges. By setting the outer tube body 101 and the inner tube body 102 with a double-layer nested structure, the entire material conveying pipe fitting 1 has good structural heat insulation. At the same time, by arranging the electric heating tubes 103 in a ring between the outer tube body 101 and the inner tube body 102, the operation of the electric heating tubes 103 can provide an effective heating effect for the entire interior of the material conveying pipe fitting 1.

[0026] like Figures 1 to 5As shown, the flexible tube structure 2 includes an expansion joint 201, a protective sleeve 202, and a connecting ring 203. The expansion joint 201 is covered by the protective sleeve 202, and connecting rings 203 are installed at both ends of the expansion joint 201. The expansion joint 201 is flange-connected to the combined ring frame 104 through the connecting ring 203 at one end, and the expansion joint 201 and the connecting ring 203 are fixedly connected. The assembly pipe fitting 3 includes an auxiliary pipe body 301, a feed port 302, and a support shaft frame 303. The top of the auxiliary pipe body 301 is provided with the feed port 302, and the auxiliary pipe body 301... A support shaft 303 is installed in the middle of the end away from the conveying pipe fitting 1. The auxiliary pipe body 301 is connected to one end of the conveying pipe fitting 1 through a flange structure. The auxiliary pipe body 301 and the feed inlet 302 are welded together. The top of the feed inlet 302 is connected to the feed hopper 4 through a flange structure. A flexible pipe structure 2 is installed at one end of the conveying pipe fitting 1. Through the characteristics of the expansion joint 201 itself, the connecting ring 203 at the end away from the conveying pipe fitting 1 can be adjusted to any angle within a certain range.

[0027] like Figures 1 to 5 As shown, the feeding assembly 5 includes a support frame 501, a servo motor 502, a gearbox 503, an auger 504, and an anti-stick coating 505. The servo motor 502 is horizontally mounted at one end of the support frame 501, and the gearbox 503 is mounted at the power output end of the servo motor 502. The auger 504 is horizontally connected at the end of the gearbox 503 away from the servo motor 502, and the surface of the auger 504 is coated with an anti-stick coating 505. The auger 504 is horizontally positioned in the middle of the inside of the feeding pipe 1, and one end of the auger 504 is connected to the power output end of the gearbox 503 through a coupling. By connecting the feeding pipe 1, the flexible pipe structure 2, and the assembly pipe 3 together with a flange structure, the stability, firmness, and sealing of the connection between the structures can be effectively ensured, and the structures can also be easily disassembled.

[0028] In summary, as Figures 1 to 5 As shown, the feeding device for solder paste processing is used by first connecting one end of the entire device to the feeding hopper 4 via the feeding port 302 at the top of the auxiliary pipe 301 and the flange structure at its upper end, or by selecting an appropriate pipe structure to connect and combine them according to the needs of the upstream feeding equipment. Then, by utilizing the adjustability of the expansion joint 201 itself, which is connected to the combined ring frame 104 at one end of the conveying pipe fitting 1 via the connecting ring 203 at one end, the connecting ring 203 at the other end of the expansion joint 201 is oriented towards the downstream equipment and connected to the pipe structure. The protective sleeve 202 provides a certain degree of structural protection for the expansion joint 201.

[0029] During material conveying, the material enters the assembly pipe 3 from the feed hopper 4. During this process, the servo motor 502, which is installed on one side of the auxiliary pipe 301 via the support frame 501, starts to operate. In conjunction with the gearbox 503, it drives the auger 504 connected to it and makes it rotate axially in the horizontal direction inside the conveying pipe 1. By using its rotation, the material inside the auxiliary pipe 301 is pushed into the inner pipe 102, and the material is further moved into the flexible pipe structure 2, so that the material enters the downstream processing equipment.

[0030] During this process, the electric heating tube 103, which is arranged in a ring between the outer tube 101 and the inner tube 102, will keep the material inside the entire conveying pipe 1 at an appropriate temperature, thereby ensuring that the material is in a suitable fluid state and avoiding unnecessary temperature changes that may cause partial condensation, thus affecting the processing of downstream equipment.

[0031] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A feeding device for solder paste processing, comprising a feeding tube (1) and a flexible tube structure (2), characterized in that: One end of the conveying pipe (1) is equipped with a flexible pipe structure (2), and the end of the conveying pipe (1) away from the flexible pipe structure (2) is equipped with an assembly pipe (3). The top of the assembly pipe (3) is equipped with a feed hopper (4), and the middle of the assembly pipe (3) is equipped with a pusher assembly (5). The conveying pipe (1) includes an outer pipe body (101), an inner pipe body (102), an electric heating tube (103), and a combined ring frame (104). The inner pipe body (102) is arranged inside the outer pipe body (101), and an electric heating tube (103) is arranged between the inner pipe body (102) and the outer pipe body (101). The combined ring frame (104) is installed at both ends of the outer pipe body (101).

2. The feeding device for solder paste processing according to claim 1, characterized in that, The electric heating tubes (103) are arranged in a circular array between the inner tube body (102) and the outer tube body (101) in three sets at equal intervals, and the combined ring frame (104) is connected to the outer tube body (101) and the inner tube body (102) by flanges.

3. The feeding device for solder paste processing according to claim 1, characterized in that, The flexible tube structure (2) includes an expansion joint (201), a protective sleeve (202), and a connecting ring (203). The expansion joint (201) is covered with a protective sleeve (202), and a connecting ring (203) is installed at both ends of the expansion joint (201).

4. A feeding device for solder paste processing according to claim 3, characterized in that, The expansion joint (201) is flange-connected to the combined ring frame (104) via a connecting ring (203) at one end, and the expansion joint (201) and the connecting ring (203) are fixedly connected.

5. A feeding device for solder paste processing according to claim 1, characterized in that, The assembly pipe fitting (3) includes an auxiliary pipe body (301), a feed inlet (302) and a support shaft frame (303). The feed inlet (302) is provided at the top of the auxiliary pipe body (301), and the support shaft frame (303) is installed in the middle of the end of the auxiliary pipe body (301) away from the material conveying pipe fitting (1).

6. A feeding device for solder paste processing according to claim 5, characterized in that, The auxiliary pipe (301) is connected to one end of the conveying pipe (1) through a flange structure, and the auxiliary pipe (301) and the feed inlet (302) are welded together. The top of the feed inlet (302) is connected to the feed hopper (4) through a flange structure.

7. A feeding device for solder paste processing according to claim 1, characterized in that, The feeding assembly (5) includes a support frame (501), a servo motor (502), a gearbox (503), an auger (504), and an anti-stick coating (505). The servo motor (502) is horizontally mounted at one end of the support frame (501), and the gearbox (503) is mounted at the power output end of the servo motor (502). The auger (504) is horizontally connected at the end of the gearbox (503) away from the servo motor (502), and the surface of the auger (504) is coated with an anti-stick coating (505).

8. A feeding device for solder paste processing according to claim 7, characterized in that, The auger (504) is horizontally positioned in the middle of the material conveying pipe (1), and one end of the auger (504) is connected to the power output end of the gearbox (503) via a coupling.

Citation Information

Patent Citations

  • Continuous feeding device for solder paste processing

    CN219234325U