Thermistor single-end glass seal stay wire assembly equipment

Abstract

The utility model discloses thermistor single-end glass seal stay wire assembly equipment which comprises a workbench and a sliding frame, the sliding frame is connected to the workbench in a sliding mode, a machining table is connected to the middle of the top of the workbench in a sliding mode, a mounting groove is formed in the center of the upper surface of the machining table, and an assembly jig is clamped in the mounting groove. Wire drawing machines are arranged above the workbench and located on the front side and the rear side of the assembling jig, and a plurality of Dumet wires are arranged between the two wire drawing machines in a straightening mode. According to the utility model, a proper number of Dumet wires can be drawn through the wire drawing machines, the Dumet wires can be straightened through the cooperation of the two wire drawing machines, and when the Dumet wires are drawn, the distance between the two wire drawing machines can be correspondingly adjusted according to the manufacturing requirements of different thermistors, so that the lengths of the Dumet wires straightened by the two wire drawing machines are adjusted, and the production efficiency is improved. The adaptability is higher, the use is more convenient, the silver paste can be conveniently sprayed through the matched use of the sliding frame and the spray gun, the Dumet wire does not need to be moved, the production continuity is high, and the production efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of single-ended packaging technology for thermistors, specifically a single-ended glass-sealed wire-drawing assembly device for thermistors. Background Technology

[0002] A thermistor is a resistive element that is sensitive to temperature, exhibiting different resistance values ​​at different temperatures, and is therefore a common component of temperature sensors. Thermistors are classified into positive temperature coefficient thermistors (PTC) and negative temperature coefficient thermistors (NTC) according to their temperature coefficient.

[0003] The manufacturing process of single-ended glass-sealed thermistors requires wire straightening, cutting, adsorption and positioning, silver paste application, chip mounting, glass shell insertion, and sintering. In traditional single-ended glass-sealed thermistor manufacturing process, each step is carried out separately using individual equipment. After completing a single step, the wires are manually or mechanically transported to the next equipment for the next step. This results in a fragmented production process for single-ended glass-sealed thermistors, with discontinuous steps affecting production efficiency and product qualification rates. Furthermore, the wire lengths vary for different thermistor specifications. Once the wire length is determined, it needs to be straightened and cut again, which is time-consuming and labor-intensive, further impacting production efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a single-ended glass-sealed pull-wire assembly device for thermistors to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A thermistor single-ended glass-sealed wire drawing assembly device includes a worktable and a slide. The slide is slidably connected to the worktable. A processing table is slidably connected to the middle position of the top of the worktable. An installation groove is opened at the center of the upper surface of the processing table, and an assembly fixture is engaged in the installation groove. Wire drawing machines are arranged on both the front and rear sides of the assembly fixture above the worktable. Multiple DuMei wires are straightened between the two wire drawing machines. A second guide groove is opened at the middle position of the upper surface of the worktable. A concave groove is opened below the inner wall of the worktable on the side corresponding to the second guide groove.

[0007] A concave slide table is slidably connected within the concave slide groove. The upper surface of the concave slide table is flush with the upper surface of the worktable. A third guide groove is provided on both sides of the upper surface of the concave slide table. A third guide rail is installed in each of the two third guide grooves. A third guide block is slidably connected to each of the two third guide rails. The two wire drawing machines are respectively installed on the two third guide blocks. The third guide rails and the third guide blocks cooperate to drive the corresponding wire drawing machine to move back and forth above the concave slide table.

[0008] As a further embodiment of this utility model: a fourth guide rail is installed on the top of the carriage, a fourth guide block is slidably connected on the fourth guide rail, a mounting platform is connected to the lower part of the fourth guide block via a bracket, an electric push rod is installed on the mounting platform, the output end of the electric push rod extends to the lower part of the mounting platform, and a spray gun is fixed to the end of the output end of the electric push rod via a connecting seat. The spray gun is used to spray the slurry for thermistor encapsulation onto the upper part of the assembly fixture.

[0009] As a further embodiment of this utility model: a paperboard is fixed on the assembly fixture, the DuMei thread is attached to the paperboard, and masking adhesive is applied between the DuMei thread and the paperboard.

[0010] As a further embodiment of this utility model: the front and rear sides of the upper surface of the worktable are provided with first guide grooves, and first guide rails are installed in the two first guide grooves. First guide blocks are slidably connected to the two first guide rails. The slide is a U-shaped structure, and its two bottom ends are respectively fixed on the first guide blocks on the corresponding side. The first guide rails and the first guide blocks cooperate to drive the slide to move back and forth on the upper side of the worktable.

[0011] As a further embodiment of this utility model: a second guide rail is installed in the second guide groove, a second guide block is slidably connected on the second guide rail, the processing table is fixed on the second guide block, and the second guide rail and the second guide block cooperate to drive the processing table to move back and forth on the worktable.

[0012] As a further embodiment of this utility model: a lead screw is rotatably connected to the middle position inside the concave slide groove. One end of the lead screw is threadedly connected to the concave slide table. A motor is installed on the outside of the worktable on the side corresponding to the lead screw. One end of the motor output shaft is fixedly connected to one end of the lead screw. The motor cooperates with the lead screw to drive the concave slide table to move back and forth in the concave slide groove and drive the wire drawing machine above it to move synchronously above the worktable.

[0013] As a further improvement of this utility model: the Dumei wire is a high-strength alloy wire, one end of which is connected to the thermistor, and the other end extends to the outside of the thermistor glass shell.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. In this utility model, a suitable number of Dumme wires can be drawn by a wire drawing machine, and the Dumme wires can be straightened by two wire drawing machines working together. When drawing the Dumme wires, the distance between the two wire drawing machines can be adjusted according to the manufacturing requirements of different thermistors, thereby adjusting the length of the Dumme wires straightened by the two wire drawing machines. This makes it more adaptable and more convenient to use.

[0016] 2. In this utility model, after the Dumei wire is bonded to the board, the wire drawing machine is separated from the Dumei wire. At this time, the thermistor is taken out and placed at the end of the Dumei wire close to the board. After it is placed, the slide is moved to move the spray gun to the junction of the thermistor and the Dumei wire. Silver paste is sprayed onto the junction through the spray gun. After the silver paste cools and sets, the thermistor and the Dumei wire are connected into a whole. The use of the slide and the spray gun can facilitate the spraying of silver paste without moving the Dumei wire, resulting in strong production continuity and high production efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the unfolded structure of the workbench in this utility model.

[0020] Figure 3 This is a cross-sectional structural diagram of the workbench in this utility model.

[0021] Figure 4 This is a diagram showing the connection structure between the carriage and the spray gun in this utility model.

[0022] Figure 5 This is a top view of the assembly fixture and Dumei silk thread in this utility model.

[0023] Figure label annotations: 1-Workbench, 2-Slide, 3-Processing table, 4-Assembly fixture, 5-Wire drawing machine, 6-Dumei wire, 7-Mounting groove, 8-First guide groove, 9-First guide rail, 10-Motor, 11-Second guide groove, 12-Concave slide, 13-First guide block, 14-Second guide rail, 15-Screw rod, 16-Second guide block, 17-Concave slide, 18-Third guide groove, 19-Third guide rail, 20-Third guide block, 21-Fourth guide rail, 22-Fourth guide block, 23-Electric push rod, 24-Mounting table, 25-Connecting seat, 26-Spray gun, 27-Paper board, 28-Mask tape. Detailed Implementation

[0024] The following embodiments will be described in detail with reference to the accompanying drawings. In the drawings and description, similar or identical parts are referred to by the same reference numerals. Furthermore, in practical applications, the shape, thickness, or height of each component may be enlarged or reduced. The embodiments listed in this utility model are merely illustrative and not intended to limit the scope of the utility model. Any obvious modifications or alterations made to this utility model do not depart from its spirit and scope.

[0025] Example 1

[0026] Please see Figure 1 , Figure 2 In this embodiment of the utility model, a thermistor single-end glass sealing wire drawing assembly device includes a workbench 1 and a slide 2. The slide 2 is slidably connected to the workbench 1. A processing table 3 is slidably connected to the middle position of the top of the workbench 1. An installation groove 7 is opened at the center of the upper surface of the processing table 3, and an assembly fixture 4 is snapped into the installation groove 7. The assembly fixture 4 is used for single-end glass sealing of the thermistor. Wire drawing machines 5 are set on both the front and rear sides of the assembly fixture 4 above the workbench 1. Multiple DuMei wires 6 are straightened between the two wire drawing machines 5. The DuMei wires 6 are high-strength alloy wires, one end of which is connected to the thermistor, and the other end extends to the outside of the thermistor glass shell for connecting the thermistor to an external power source. The DuMei wires 6 are set above the assembly fixture 4.

[0027] Please see Figure 3 The worktable 1 has first guide grooves 8 on both the front and rear sides of its upper surface. First guide rails 9 are installed in both first guide grooves 8. First guide blocks 13 are slidably connected to both first guide rails 9. The slide 2 has a U-shaped structure, and its two bottom ends are respectively fixed on the first guide blocks 13 on the corresponding side. The first guide rails 9 and the first guide blocks 13 cooperate to drive the slide 2 to move back and forth on the upper side of the worktable 1.

[0028] A second guide groove 11 is provided in the middle of the upper surface of the worktable 1. A second guide rail 14 is installed in the second guide groove 11. A second guide block 16 is slidably connected to the second guide rail 14. The processing table 3 is fixed on the second guide block 16. The second guide rail 14 and the second guide block 16 cooperate to drive the processing table 3 to move back and forth on the upper side of the worktable 1.

[0029] A concave slide groove 12 is provided on the lower side of the inner wall of the workbench 1 corresponding to the second guide groove 11. A concave slide table 17 is slidably connected in the concave slide groove 12. The upper surface of the concave slide table 17 is flush with the upper surface of the workbench 1. A third guide groove 18 is provided on both sides of the upper surface of the concave slide table 17. A third guide rail 19 is installed in each of the two third guide grooves 18. A third guide block 20 is slidably connected on each of the two third guide rails 19. Two wire pulling machines 5 are respectively installed on the two third guide blocks 20. The third guide rails 19 and the third guide blocks 20 cooperate to drive the corresponding wire pulling machine 5 to move back and forth above the concave slide table 17.

[0030] A lead screw 15 is rotatably connected to the middle position inside the concave slide 12. One end of the lead screw 15 is threadedly connected to the concave slide table 17. A motor 10 is installed on the side of the worktable 1 corresponding to the lead screw 15. One end of the output shaft of the motor 10 is connected and fixed to one end of the lead screw 15. The motor 10 and the lead screw 15 cooperate to drive the concave slide table 17 to move back and forth in the concave slide 12 and drive the wire drawing machine 5 above it to move synchronously.

[0031] Example 2

[0032] Based on Example 1, please refer to Figure 4 A fourth guide rail 21 is mounted on the top of the carriage 2. A fourth guide block 22 is slidably connected to the fourth guide rail 21. A mounting platform 24 is connected to the bottom of the fourth guide block 22 via a bracket. An electric push rod 23 is mounted on the mounting platform 24. The output end of the electric push rod 23 extends to the bottom of the mounting platform 24, and a spray gun 26 is fixed to the end of the output end of the electric push rod 23 via a connecting seat 25. The spray gun 26 is used to spray the slurry for thermistor encapsulation onto the top of the assembly fixture 4.

[0033] Example 3

[0034] Based on Examples 1 and 2, please refer to Figure 5 A paperboard 27 is fixed on the assembly fixture 4. Dumee silk thread 6 is attached to the paperboard 27, and masking adhesive 28 is applied between the Dumee silk thread 6 and the paperboard 27. The Dumee silk thread 6 and the paperboard 27 are bonded and fixed by the masking adhesive 28.

[0035] Working principle:

[0036] When using this device, select a suitable assembly fixture 4 and fix it in the mounting slot 7. Use a wire pulling machine 5 to pull out an appropriate number of DuMei wires 6. Use two wire pulling machines 5 in conjunction to straighten the DuMei wires 6. When pulling out the DuMei wires 6, adjust the distance between the two wire pulling machines 5 according to the manufacturing requirements of different thermistors, and then adjust the length of the DuMei wires 6 straightened by the two wire pulling machines 5. After the length of the DuMei wires 6 is adjusted, use the motor 10 and the lead screw 15 to move the concave slide 17 left and right to move the DuMei wires 6 above it to the top of the assembly fixture 4. The assembly fixture 4 has a paperboard 27 fixed on it in advance. Move the DuMei wires 6 to the top of the paperboard 27. Then use the wire pulling machine 5 to attach the straightened DuMei wires 6 to the paperboard 27. After attaching, apply a layer of masking adhesive 28 to bond and fix the DuMei wires 6 to the paperboard 27.

[0037] After the Dummey wire 6 is bonded to the paperboard 27, the wire drawing machine 5 separates from the Dummey wire 6. At this time, the thermistor is taken out and placed at the end of the Dummey wire 6 near the paperboard 27. After it is placed, the moving carriage 2 moves the spray gun 26 to the junction of the thermistor and the Dummey wire 6. Silver paste is sprayed onto the junction through the spray gun 26. After the silver paste cools and sets, the thermistor and the Dummey wire 6 are connected into a whole. At this time, a glass shell is put on the outside of this whole and sent into the glass furnace for glass sealing. The thermistor and one end of the Dummey wire 6 are completely covered in the glass shell. Thus, a complete thermistor element is produced.

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0039] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A thermistor single-ended glass-sealed wire assembly device, comprising a workbench (1) and a slide (2), wherein the slide (2) is slidably connected to the workbench (1), characterized in that, A processing table (3) is slidably connected to the middle position of the top of the workbench (1). An installation groove (7) is opened at the center of the upper surface of the processing table (3), and an assembly fixture (4) is snapped into the installation groove (7). A wire drawing machine (5) is set on both the front and rear sides of the assembly fixture (4) above the workbench (1). Multiple Dumere wires (6) are straightened between the two wire drawing machines (5). A second guide groove (11) is opened at the middle position of the upper surface of the workbench (1). A concave sliding groove (12) is opened below the inner wall of the workbench (1) on the side corresponding to the second guide groove (11). A concave slide table (17) is slidably connected in the concave slide groove (12). The upper surface of the concave slide table (17) is flush with the upper surface of the worktable (1). A third guide groove (18) is provided on both sides of the upper surface of the concave slide table (17). A third guide rail (19) is installed in each of the two third guide grooves (18). A third guide block (20) is slidably connected on each of the two third guide rails (19). Two wire drawing machines (5) are respectively installed on the two third guide blocks (20). The third guide rail (19) and the third guide block (20) cooperate to drive the corresponding wire drawing machine (5) to move back and forth above the concave slide table (17).

2. The thermistor single-ended glass-sealed wire assembly device according to claim 1, characterized in that, A fourth guide rail (21) is mounted on the top of the slide (2), and a fourth guide block (22) is slidably connected on the fourth guide rail (21). A mounting platform (24) is connected to the bottom of the fourth guide block (22) via a bracket. An electric push rod (23) is mounted on the mounting platform (24). The output end of the electric push rod (23) extends to the bottom of the mounting platform (24), and a spray gun (26) is fixed to the end of the output end of the electric push rod (23) via a connecting seat (25). The spray gun (26) is used to spray the slurry for thermistor encapsulation onto the top of the assembly fixture (4).

3. The thermistor single-ended glass-sealed wire assembly device according to claim 2, characterized in that, A paperboard (27) is fixed on the assembly fixture (4), and the Dumei thread (6) is attached to the paperboard (27), with masking tape (28) applied between the Dumei thread (6) and the paperboard (27).

4. The thermistor single-ended glass-sealed wire assembly device according to claim 3, characterized in that, The workbench (1) has first guide grooves (8) on both the front and back sides of its upper surface. Each of the two first guide grooves (8) is equipped with a first guide rail (9). Each of the two first guide rails (9) is slidably connected with a first guide block (13). The slide (2) has a U-shaped structure, and its two bottom ends are respectively fixed on the first guide block (13) on the corresponding side. The first guide rail (9) and the first guide block (13) cooperate to drive the slide (2) to move back and forth on the upper side of the workbench (1).

5. The thermistor single-ended glass-sealed wire assembly device according to claim 4, characterized in that, A second guide rail (14) is installed in the second guide groove (11), and a second guide block (16) is slidably connected on the second guide rail (14). The processing table (3) is fixed on the second guide block (16). The second guide rail (14) and the second guide block (16) cooperate to drive the processing table (3) to move back and forth above the worktable (1).

6. The thermistor single-ended glass-sealed wire assembly device according to claim 5, characterized in that, A lead screw (15) is rotatably connected to the middle position inside the concave slide groove (12). One end of the lead screw (15) is threadedly connected to the concave slide table (17). A motor (10) is installed on the side of the worktable (1) corresponding to the lead screw (15). One end of the output shaft of the motor (10) is connected and fixed to one end of the lead screw (15). The motor (10) cooperates with the lead screw (15) to drive the concave slide table (17) to move back and forth in the concave slide groove (12) and drive the wire drawing machine (5) above it to move synchronously above the worktable (1).

7. The thermistor single-ended glass-sealed wire assembly device according to claim 1 or 6, characterized in that, The Dumei wire (6) is a high-strength alloy wire, with one end connected to the thermistor and the other end extending to the outside of the thermistor's glass shell.

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