A mold for solder wire production

By using a connection method of movable blocks and movable slots in the solder wire production mold, combined with a return spring and a retaining rod, the mold core can be quickly replaced, solving the problem of cumbersome hole diameter changes required in existing molds and improving production efficiency.

CN224463439UActive Publication Date: 2026-07-07JIANGSU CHANGHONG SOLDER MANUFACTURING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU CHANGHONG SOLDER MANUFACTURING CO LTD
Filing Date
2025-08-13
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing solder wire production molds require changing different hole diameters according to the thickness of the solder wire, which is cumbersome and reduces work efficiency.

Method used

The fixed sleeve and the movable sleeve are connected by a movable block and a movable groove, and with the help of a return spring, a fixing rod and a fixing hole, the mold core is fixed, which makes it easy to replace extension cylinders of different sizes.

Benefits of technology

This avoids the tedious work of disassembling and changing molds, improves work efficiency, and meets a wider range of processing needs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to soldering wire production technical field, concretely provides a mould for soldering wire production, including support and movable cover, and the inside of fixed cover and movable cover all are established movable slot, and the inside of fixed cover and movable cover jointly is provided with mould core, and the inside of mould core is fixed mounting respectively with first extension cylinder, second extension cylinder and third extension cylinder, and the outside of mould core even fixed mounting has three movable blocks with movable slot sliding connection. The utility model installs the first extension cylinder, second extension cylinder and third extension cylinder of different thickness in the inside of mould core, and fixed cover and movable cover all with mould core between, adopt movable block and movable slot's mode and move the connection, cooperate reset spring, insert solid rod and insert solid hole simultaneously, realize the fixed of mould core to can according to the processing need with the first extension cylinder, second extension cylinder or third extension cylinder of specified size turns to the work position, avoids the tedious dismantling and replacement work.
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Description

Technical Field

[0001] This utility model relates to the field of solder wire production technology, and in particular to a mold for solder wire production. Background Technology

[0002] Solder wire, also known as solder wire, solder braid, tin wire, or tin wire, is composed of two parts: a tin alloy and additives. The alloy composition is either tin-lead or lead-free, with the additives evenly poured into the center of the tin alloy. Different types of solder wire use different additives. The additives improve the heat conduction of the solder wire during the soldering process, remove oxidation, reduce the surface tension of the materials being soldered, remove oil stains from the surface of the materials being soldered, and increase the soldering area. Solder wire is characterized by being a tin alloy wire of a certain length and diameter, and can be used in conjunction with soldering irons or lasers in the soldering of electronic components. The production of solder wire requires specific dies. By passing the solder wire through the die, it is extruded and stretched to produce finer solder wire. This necessitates changing the die with different apertures depending on the required thickness of the solder wire.

[0003] Currently, existing solder wire production molds require changing molds with different apertures depending on the thickness of the solder wire being produced. This method of replacement is cumbersome and reduces work efficiency. Therefore, it is necessary to provide a mold for solder wire production that solves the aforementioned technical problems. Utility Model Content

[0004] The technical problem this invention aims to solve is that existing solder wire production molds require changing molds with different apertures depending on the thickness of the solder wire being produced. This replacement method is cumbersome and reduces work efficiency. To address these shortcomings, this invention provides a mold for solder wire production, including a support and a movable sleeve. Both the fixed sleeve and the movable sleeve have movable grooves on their inner sides, and a mold core is jointly housed inside both. A first extension cylinder, a second extension cylinder, and a third extension cylinder are fixedly installed inside the mold core, and three movable blocks that are slidably connected to the movable grooves are evenly fixedly installed on the outer side of the mold core. This invention installs first, second, and third extension cylinders of different thicknesses inside the mold core, and the fixed sleeve and movable sleeve are movably connected to the mold core using movable blocks and movable grooves. Combined with a return spring, a retaining rod, and a retaining hole, the mold core is fixed in place. This allows the first, second, or third extension cylinder of a specified size to be rotated to the working position according to processing needs, avoiding tedious replacement work.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: a mold for producing solder wire, comprising a support and a movable sleeve. A fixed sleeve is fixedly installed on the inner side of the support. Movable grooves are opened on the inner sides of both the fixed sleeve and the movable sleeve. A mold core is jointly provided inside the fixed sleeve and the movable sleeve. A first extension cylinder, a second extension cylinder, and a third extension cylinder are fixedly installed inside the mold core. Three movable blocks that are slidably connected to the movable grooves are evenly fixedly installed on the outer side of the mold core. An insertion hole is opened on the outer side of each movable block. A return spring is fixedly installed on the outer side of the movable sleeve. One end of the return spring is fixedly connected to an insertion rod that penetrates the movable sleeve. One end of the insertion rod is inserted into the insertion hole.

[0006] Furthermore, a base plate is fixedly connected to the lower end of the bracket, and four fixing holes are evenly opened on the upper surface of the base plate.

[0007] Furthermore, a slot is provided on the upper surface of the base plate, an L-shaped plug is inserted into the slot, and a collection groove is fixedly installed on one side of the L-shaped plug.

[0008] As a further feature, a connecting frame is fixedly installed on one side of the bracket, and a sponge ring is provided at one end of the connecting frame.

[0009] Furthermore, U-shaped seats are fixedly installed on the upper and lower surfaces of the bracket, and fixing blocks are symmetrically fixedly installed on the outer side of the movable sleeve. A connecting block that plugs into the U-shaped seat is fixedly installed on the rear surface of each fixing block.

[0010] In a further configuration, a groove is provided on the rear surface of the connecting block, a rotating shaft is rotatably connected to the inner side of the groove, a stopper is fixedly connected to one end of the rotating shaft, and a torsion spring is fixedly connected between the stopper and the connecting block.

[0011] In a further configuration, the torsion spring is located on the outside of the rotating shaft, and the rear surface of the retainer contacts the U-shaped seat.

[0012] Compared with related technologies, the mold for solder wire production provided by this utility model has the following beneficial effects:

[0013] This utility model provides a mold for solder wire production. Inside the mold core, a first extension cylinder, a second extension cylinder, and a third extension cylinder of different diameters are installed. The fixed sleeve and the movable sleeve are movably connected to the mold core using movable blocks and movable slots. Simultaneously, a return spring, a fixing rod, and a fixing hole are used to fix the mold core. This allows the first, second, or third extension cylinder of a specified size to be rotated to the working position according to processing needs, avoiding cumbersome disassembly and replacement work. This solves the technical problem in existing solder wire production molds where different diameter molds need to be replaced according to the thickness of the solder wire being produced, a method that is cumbersome and reduces work efficiency.

[0014] This utility model provides a mold for solder wire production. By turning the stop to a horizontal position, the torsion spring undergoes elastic deformation, which allows the connecting block to be pulled out from the inside of the U-shaped seat. This facilitates the separation of the movable sleeve and the fixed sleeve, and makes it easy to remove the mold core from the inside of the movable sleeve and the fixed sleeve. As a result, the mold core with different models of first extension cylinder, second extension cylinder and third extension cylinder can be replaced according to the needs, so as to meet a wider range of needs and enhance practicality. Attached Figure Description

[0015] Figure 1 A schematic diagram of a preferred embodiment of a mold for producing solder wire provided by this utility model;

[0016] Figure 2 This is a perspective view of the entire utility model;

[0017] Figure 3 This is a schematic diagram of the left-side structure of this utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of the mold core, fixed sleeve, and movable sleeve of this utility model;

[0019] Figure 5 This is a left-side view of the connection between the U-shaped seat and the fixing block of this utility model.

[0020] The following are the labels in the diagram: 1. Base plate; 2. Fixing hole; 3. Bracket; 4. First extension cylinder; 5. Second extension cylinder; 6. Mold core; 7. Fixing sleeve; 8. Third extension cylinder; 9. U-shaped seat; 10. Fixing block; 11. Connecting frame; 12. Sponge ring; 13. Movable sleeve; 14. Return spring; 15. Insert rod; 16. Collection groove; 17. Slot; 18. L-shaped insert block; 19. Groove; 20. Stopper; 21. Connecting block; 22. Movable block; 23. Movable groove; 24. Inserting hole; 25. Torsion spring; 26. Rotating shaft. Detailed Implementation

[0021] To facilitate understanding of this utility model, a more comprehensive description will be provided below with reference to the accompanying drawings. The drawings show typical embodiments of this utility model. Example

[0022] like Figure 1-5 As shown, a mold for producing solder wire according to this utility model includes a support 3 and a movable sleeve 13. A fixed sleeve 7 is fixedly installed on the inner side of the support 3. Movable grooves 23 are opened on the inner sides of both the fixed sleeve 7 and the movable sleeve 13. A mold core 6 is jointly provided inside the fixed sleeve 7 and the movable sleeve 13. A first extension cylinder 4, a second extension cylinder 5 and a third extension cylinder 8 are fixedly installed inside the mold core 6. Three movable blocks 22 that are slidably connected to the movable grooves 23 are evenly fixedly installed on the outer side of the mold core 6. An insertion hole 24 is opened on the outer side of each movable block 22. A return spring 14 is fixedly installed on the outer side of the movable sleeve 13. One end of the return spring 14 is fixedly connected to an insertion rod 15 that passes through the movable sleeve 13. One end of the insertion rod 15 is inserted into the insertion hole 24.

[0023] In practice, a first extension cylinder 4, a second extension cylinder 5, and a third extension cylinder 8 of different diameters are installed inside the mold core 6. The fixed sleeve 7 and the movable sleeve 13 are movably connected to the mold core 6 by a movable block 22 and a movable groove 23. At the same time, the mold core 6 is fixed by a return spring 14, a fixing rod 15, and a fixing hole 24. Thus, the first extension cylinder 4, the second extension cylinder 5, or the third extension cylinder 8 of a specified size can be rotated to the working position according to the processing needs, avoiding cumbersome disassembly and replacement work. This solves the technical problem in the existing solder wire production mold that requires the replacement of molds with different hole diameters according to the thickness of the solder wire to be produced. This disassembly and replacement method is relatively troublesome and reduces work efficiency.

[0024] like Figure 1 As shown, the lower end of the bracket 3 is fixedly connected to the base plate 1. Four fixing holes 2 are evenly opened on the upper surface of the base plate 1. A slot 17 is opened on the upper surface of the base plate 1. An L-shaped plug 18 is inserted into the slot 17. A collection groove 16 is fixedly installed on one side of the L-shaped plug 18.

[0025] like Figure 3 As shown, a connecting frame 11 is fixedly installed on one side of the bracket 3, and a sponge ring 12 is provided at one end of the connecting frame 11. Example

[0026] like Figure 1-5As shown, based on Embodiment 1, this utility model provides a technical solution: U-shaped seats 9 are fixedly installed on the upper and lower surfaces of the bracket 3, and fixing blocks 10 are symmetrically fixedly installed on the outer side of the movable sleeve 13. A connecting block 21 that is inserted into the U-shaped seat 9 is fixedly installed on the rear surface of each fixing block 10. A groove 19 is opened on the rear surface of the connecting block 21. A rotating shaft 26 is rotatably connected to the inner side of the groove 19. A stop 20 is fixedly connected to one end of the rotating shaft 26. A torsion spring 25 is fixedly connected between the stop 20 and the connecting block 21. The torsion spring 25 is located on the outer side of the rotating shaft 26, and the rear surface of the stop 20 is in contact with the U-shaped seat 9.

[0027] In practice, by turning the stopper 20 to a horizontal position, the torsion spring 25 undergoes elastic deformation, thereby pulling the connecting block 21 out of the U-shaped seat 9. This facilitates the separation of the movable sleeve 13 from the fixed sleeve 7, making it easier to remove the mold core 6 from the movable sleeve 13 and the fixed sleeve 7. As a result, the mold core 6 with different models of the first extension cylinder 4, the second extension cylinder 5, and the third extension cylinder 8 can be replaced as needed, meeting a wider range of requirements and enhancing practicality.

[0028] In use, the solder wire is passed through the third extension tube 8 and the sponge ring 12 to form solder wire of the required diameter. The sponge ring 12 cleans up debris, which falls into the collection tank 16. When the first extension tube 4 or the second extension tube 5 needs to be switched to the working position, first pull the insertion rod 15 to stretch the return spring 14, causing one end of the insertion rod 15 to disengage from the insertion hole 24. Then rotate the mold core 6 by 60° or 120°, and finally release the insertion rod 15. At this time, under the elastic tension of the return spring 14, one end of the insertion rod 15 is inserted back into the corresponding insertion hole 24, thus fixing the rotated mold core 6. When the mold core 6 needs to be disassembled, first turn the stop 20 to a horizontal position to cause the torsion spring 25 to elastically deform. Then move the movable sleeve 13 to pull the connecting block 21 out from the U-shaped seat 9, separating the movable sleeve 13 from the fixed sleeve 7. At this time, the mold core 6 can be removed from the movable sleeve 13 and the fixed sleeve 7.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mold for producing solder wire, comprising a support (3) and a movable sleeve (13), characterized in that: A fixed sleeve (7) is fixedly installed on the inner side of the bracket (3). The fixed sleeve (7) and the movable sleeve (13) are both provided with movable grooves (23). The fixed sleeve (7) and the movable sleeve (13) are both provided with a mold core (6). The mold core (6) is fixedly installed with a first extension cylinder (4), a second extension cylinder (5) and a third extension cylinder (8). The outer side of the mold core (6) is uniformly fixedly installed with three movable blocks (22) that are slidably connected to the movable grooves (23). Each movable block (22) is provided with a insertion hole (24) on its outer side. A return spring (14) is fixedly installed on the outer side of the movable sleeve (13). One end of the return spring (14) is fixedly connected with an insertion rod (15) that passes through the movable sleeve (13). One end of the insertion rod (15) is inserted into the insertion hole (24).

2. A mold for producing solder wire according to claim 1, characterized in that, The lower end of the bracket (3) is fixedly connected to a base plate (1), and four fixing holes (2) are evenly opened on the upper surface of the base plate (1).

3. A mold for producing solder wire according to claim 2, characterized in that, The upper surface of the base plate (1) is provided with a slot (17), and an L-shaped plug (18) is inserted into the slot (17). A collection groove (16) is fixedly installed on one side of the L-shaped plug (18).

4. A mold for producing solder wire according to claim 1, characterized in that, A connecting frame (11) is fixedly installed on one side of the bracket (3), and a sponge ring (12) is provided at one end of the connecting frame (11).

5. A mold for producing solder wire according to claim 1, characterized in that, U-shaped seats (9) are fixedly installed on the upper and lower surfaces of the bracket (3), and fixed blocks (10) are symmetrically fixedly installed on the outer side of the movable sleeve (13). A connecting block (21) that is inserted into the U-shaped seat (9) is fixedly installed on the rear surface of each fixed block (10).

6. A mold for producing solder wire according to claim 5, characterized in that, The rear surface of the connecting block (21) is provided with a groove (19), and a rotating shaft (26) is rotatably connected to the inner side of the groove (19). A stopper (20) is fixedly connected to one end of the rotating shaft (26), and a torsion spring (25) is fixedly connected between the stopper (20) and the connecting block (21).

7. A mold for producing solder wire according to claim 6, characterized in that, The torsion spring (25) is located outside the rotating shaft (26), and the rear surface of the retainer (20) is in contact with the U-shaped seat (9).