Pin wire feeding structure applied to ceramic capacitor and piezoresistor production

Abstract

The utility model relates to the field of ceramic capacitor and piezoresistor production, in particular to a pin wire feeding structure applied to ceramic capacitor and piezoresistor production, which comprises a sliding rail, a sliding block arranged on the sliding rail and an air cylinder with a piston rod. The wire clamp is characterized in that the lower portion of the inner side of the movable clamp assembly is connected with the fixed base in a hinged mode, and a V-shaped wire clamping groove is formed in the top face between the movable clamp assembly and the fixed base; a reset spring is arranged between the lower end of the movable clamp assembly and the sliding block, and under the action of the reset spring, the V-shaped wire clamping groove is in a clamping state. The air cylinder is arranged above the movable clamp assembly, and when the piston rod abuts against the outer side portion of the movable clamp assembly, the V-shaped wire clamping groove is in an open state. According to the utility model, the influence of pressure fluctuation of compressed air in the air cylinder on clamping force can be effectively avoided, so that the pin wire can be clamped in the V-shaped wire clamping groove very stably, and a stable pin wire is provided for the next production process.

Description

Technical Field

[0001] This utility model relates to the field of ceramic capacitor and varistor manufacturing, and in particular to a lead wire delivery structure. Background Technology

[0002] Lead wires are an indispensable material in the production of ceramic capacitor-level varistors. Since the purchased lead wires are packaged in rolls, a wire feeding mechanism is needed to transport them to a bending and shearing mechanism to form the leads used on capacitors. Chinese utility model patent application number 202210454004.1, entitled "Multi-lead Capacitor Welding and Assembly Machine," discloses a technical solution in which the lead wire feeding device 61 includes a wire pressing cylinder 613, a wire pressing guide rod seat 614, and a wire pressing guide rod 615. The wire pressing guide rod 615 is mounted on both sides of the wire pressing cylinder via wire pressing guide rods 6110. The lower end of the wire pressing guide rod 615 longitudinally passes through the wire pressing guide rod seat 614 and is positioned at the wire passage opening of the wire pressing guide rod seat 614. The wire pressing cylinder 613 and the wire pressing guide rod 6110 together drive the wire pressing guide rod 615 downwards, thereby pressing the lead wire passing through the wire passage opening of the wire pressing guide rod seat 614. However, this technology still has the following technical problems in use: the wire clamping guide rod is pressed parallel to the lead wire under the drive of the wire clamping cylinder. The magnitude of the clamping force is achieved by the pressure of the compressed air in the cylinder. In actual production, the pressure of the compressed air usually fluctuates to a certain extent, which leads to a certain fluctuation in the clamping force provided by the cylinder. Therefore, it is easy to have excessive clamping force that flattens the lead wire, or insufficient clamping force that causes the lead wire to slip, affecting the normal transfer of the lead wire.

[0003] Given the above-mentioned shortcomings of the existing technology, the applicant believes it is necessary to make technical improvements to provide a lead wire feeding structure that can stably clamp the lead wire, thereby greatly improving the operational stability of the device. Utility Model Content

[0004] The purpose of this invention is to solve the above-mentioned problems and shortcomings, and to provide a lead wire feeding structure for the production of ceramic capacitors and varistors. The movable clamping assembly of this lead wire feeding structure is hinged to a fixed base, and a V-shaped wire clamping groove is formed on the top surface between the two. A return spring is provided between the lower end of the movable clamping assembly and the slider. The return spring keeps the V-shaped wire clamping groove in a clamped state, and the cylinder piston rod presses against the outer side of the movable clamping assembly to open the V-shaped wire clamping groove. Thus, the clamping of the lead wire is accomplished by the elastic force of the return spring, and the cylinder's function is to open the V-shaped wire clamping groove. Therefore, the influence of compressed air pressure fluctuations in the cylinder on the clamping force can be effectively avoided, allowing the lead wire to be stably clamped in the V-shaped wire clamping groove, providing a stable lead wire for the next production process.

[0005] The technical solution of this utility model is implemented as follows: a lead wire feeding structure applied to the production of ceramic capacitors and varistors includes a slide rail, a slider disposed on the slide rail, and a cylinder with a piston rod. A fixed seat and a movable clamping assembly are mounted on the slider. The movable clamping assembly is characterized in that the lower inner part of the movable clamping assembly is hinged to the fixed seat, and a V-shaped wire clamping groove is formed on the top surface between the movable clamping assembly and the fixed seat. A return spring is provided between the lower end of the movable clamping assembly and the slider. Under the action of the return spring, the V-shaped wire clamping groove is clamped. The cylinder is disposed above the movable clamping assembly, and when the piston rod presses against the outer side of the movable clamping assembly, the V-shaped wire clamping groove is opened.

[0006] Furthermore, the movable clamping assembly includes a clamping part and a resetting part; the outer side of the clamping part is fixed to the top surface of the resetting part; a hinge part is provided on the inner bottom surface of the clamping part, and a hinge seat is provided on the inner side of the fixed seat to be assembled with the hinge part; a V-shaped clamping groove is formed on the top surface between the clamping part and the fixed seat; the resetting spring is disposed between the lower end of the resetting part and the slider.

[0007] Furthermore, the hinge seat includes two hinge protrusions arranged side by side, the top edge of the hinge protrusions having an arc-shaped structure; a hinge cavity is formed between the two hinge protrusions for the hinge portion to be accommodated.

[0008] Furthermore, the lower end of the reset part is provided with an insertion hole for the reset spring to be inserted.

[0009] The beneficial effects of this utility model are:

[0010] First, the lower inner part of the movable clamp assembly described in this application is hinged to the fixed base, and a V-shaped wire clamping groove is formed on the top surface between the movable clamp assembly and the fixed base. A cylinder is positioned above the outer side of the movable clamp assembly, and a return spring is provided between the lower end of the movable clamp assembly and the slider. During operation, when the piston rod of the cylinder extends, it presses down on the outer side of the movable clamp assembly, causing the inner upper part of the movable clamp assembly to swing upwards, opening the V-shaped wire clamping groove. Simultaneously, the lower end of the movable clamp assembly is pressed against the slider, compressing the return spring. When the piston rod retracts back into the cylinder, the return spring is restored. When the spring returns, the spring force of the return spring presses the lower end of the movable clamp assembly outward, while the upper inner side of the movable clamp assembly swings downward, thus clamping the V-shaped wire clamping groove and holding the lead wire in the V-shaped wire clamping groove. In this process, the magnitude of the clamping force on the lead wire is directly related to the spring force of the return spring. The compressed air in the cylinder is used to open the V-shaped wire clamping groove. Therefore, in this invention, the magnitude of the clamping force on the lead wire is independent of the pressure of the compressed air in the cylinder, thereby avoiding the influence of compressed air pressure fluctuations on the clamping force and completing the lead wire feeding action very stably.

[0011] Secondly, during the clamping and movement of the lead wire, the lead wire can form a balance with the wall of the V-shaped clamping groove according to its own material hardness, diameter and other properties. This ensures that the lead wire is clamped firmly and will not slip during movement, and also prevents the lead wire from being flattened or damaged. Furthermore, the clamping angle of the V-shaped clamping groove can be adjusted according to the diameter of the lead wire, thereby enabling the clamping and conveying of lead wires of different specifications, which greatly improves the operational flexibility of this invention. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a front view structural diagram of the present invention.

[0014] Figure 3 This is a schematic diagram of the exploded disassembly structure of this utility model.

[0015] Figure 4 This is a schematic diagram of the movable clamp assembly in this utility model.

[0016] Figure 5 This is a schematic diagram of the structure of the fixed base in this utility model.

[0017] Figure 6 This is a schematic diagram of the lead plate in this utility model. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0019] like Figure 1 , 2As shown in Figure 3, this utility model provides a lead wire feeding structure for the production of ceramic capacitors and varistors, including a slide rail 10, a slider 20 disposed on the slide rail 10, and a cylinder 1 with a piston rod 11. A fixed seat 2 and a movable clamping assembly 3 are mounted on the slider 20. To achieve the purpose proposed by this utility model, the lower inner part of the movable clamping assembly 3 is hinged to the fixed seat 2, and a V-shaped wire clamping groove 21 is formed on the top surface between the movable clamping assembly 3 and the fixed seat 2. A return spring 30 is provided between the lower end of the movable clamping assembly 3 and the slider 20. Under the action of the return spring 30, the V-shaped wire clamping groove 21 is clamped. The cylinder 1 is disposed above the movable clamping assembly 3, and when the piston rod 11 presses against the outer part of the movable clamping assembly 3, the V-shaped wire clamping groove 21 is opened. In this way, the upper inner side of the movable clamp assembly 3 is hinged to the fixed base, forming a V-shaped wire clamping groove 21 that is narrower at the bottom and wider at the top between the upper end of the movable clamp assembly and the fixed base. As the upper end of the movable clamp assembly swings up and down, the opening of the V-shaped wire clamping groove 21 becomes larger or smaller, thereby loosening or clamping the lead wire 100 in the groove. In use, the piston rod 11 is first driven by the cylinder 1 to extend, and the piston rod 11 presses against the outer side of the movable clamp assembly 3, causing the inner side of the movable clamp assembly to swing upward, thereby making the opening of the V-shaped wire clamping groove 21 larger and open, making it easier to place the lead wire 100 in the groove. At this time, the lower end of the movable clamp assembly is pressed towards the slider 20, and the return spring is compressed. When the piston rod 11 retracts into the cylinder, the return spring 30 at the lower end presses the lower end of the movable clamp assembly to swing outward, while the upper inner side of the movable clamp assembly 3 swings downward, thereby... The V-shaped wire clamping groove 21 is clamped, clamping the lead wire 100 inside the V-shaped wire clamping groove 20. During this process, the magnitude of the clamping force on the lead wire 100 is directly related to the elastic force of the return spring 30. The function of the compressed air in the cylinder is to open the V-shaped wire clamping groove 21. Therefore, in this utility model, the magnitude of the clamping force on the lead wire 100 is independent of the pressure of the compressed air in the cylinder 1, thereby avoiding the influence of the clamping force on the pressure fluctuation of the compressed air, and completing the lead wire feeding action very stably, providing a stable lead wire for the downstream process.

[0020] like Figure 2 , 3As shown in Figure 4, the movable clamping assembly 3 includes a clamping part 31 and a resetting part 32. The outer side of the clamping part 31 is fixed to the top surface of the resetting part 32. A hinge part 311 is provided on the inner bottom surface of the clamping part 31, and a hinge seat 22 is provided on the inner side of the fixed base 2 to be assembled with the hinge part 311. A V-shaped clamping groove 21 is formed on the top surface between the clamping part 31 and the fixed base 2. The resetting spring 30 is disposed between the lower end of the resetting part 32 and the slider 20. In this way, the clamping part 31 and the fixed base 2 are hinged together by the hinge part 311 being assembled on the hinge seat 22. Alternatively, the hinge part 311 can be disposed on the fixed base 2, and the hinge seat 22 can be disposed on the clamping part 31.

[0021] like Figure 2 , 3 As shown in Figure 5, the hinge seat 22 includes two hinge protrusions 221 arranged side by side, and the top edge of the hinge protrusions 221 has an arc-shaped structure; a hinge cavity 222 is formed between the two hinge protrusions 221 for the hinge part 311 to be accommodated. By placing the hinge part 311 inside the hinge cavity 222, the hinge part 311 is less likely to move left and right when rotating, thus clamping the lead wire 100 more firmly; the bottom surface of the clamping part 31 on the left and right sides of the hinge part 311 is in contact with the top surface of the two hinge protrusions 221, and the top edge of the hinge protrusions 221 is set as an arc-shaped structure. In this way, when the clamping part 31 swings up and down, the contact point with the top surface of the hinge protrusions 221 can change with the change of the swing angle, so that the groove angle of the V-shaped wire clamping groove 21 changes more precisely, clamping the lead wire 100 more tightly.

[0022] like Figure 2 , 3 As shown in Figure 4, the lower end of the reset part 32 is provided with a mounting hole 321 for the reset spring 30 to be fitted. In this way, when compressed, the reset spring 30 can retract into the mounting hole 321, and when it extends to reset, it extends along the length direction of the mounting hole 321, making it less likely to fall out and ensuring that the reset part 32 will not shift when it swings, thus ensuring the stability of this utility model.

[0023] like Figure 1 , 3 As shown, the end of the V-shaped wire clamping groove 21 is provided with a lead plate 4 with a lead hole 41, the center of which is aligned with the center of the V-shaped wire clamping groove 21. This positioning of the lead hole 41 prevents the lead wire 100 from curling during transport, ensuring smooth lead wire transport and precise control of the lead wire length. The lead plate 4 also has a waist-shaped mounting hole 42, which allows for easy adjustment of the position of the lead hole 41, ensuring precise alignment with the V-shaped wire clamping groove 21.

[0024] like Figure 1 , 3 As shown, it also includes a lead holder 5 with a lead groove 51, and the two ends of the lead groove 51 are respectively aligned with the V-shaped wire clamping groove 21 and the lead hole 41. In this way, through the further limiting of the lead groove 51, even if the V-shaped wire clamping groove 21 is in the open state, the lead wire 100 is not easy to curl, thereby further ensuring the smooth delivery of the lead wire and the precise control of the delivery length of the lead wire 100.

[0025] like Figure 1 , 3 As shown, the lead holder 5 is composed of an integrally connected longitudinal portion 52 and a transverse portion 53. The longitudinal portion 52 is fixed to the side of the fixed base 2, and the transverse portion 53 is fitted to the ends of the fixed base 2 and the movable clamping assembly 3, so that the transverse portion 53 covers the fixed base 2 and the movable clamping assembly 3. The lead groove 51 is disposed on the top surface of the transverse portion 53, and the lead plate 4 is disposed on the side of the transverse portion 53. By using the lead holder 5 to cover the fixed base 2 and the movable clamping assembly 3, the V-shaped clamping groove 21 can be effectively prevented from being disturbed by external factors when it is open or clamped, thereby ensuring its stable operation.

[0026] like Figure 1 , 3 As shown, a cylinder seat 12 is also installed at the other end of the fixed base 2. One end of the cylinder seat 12 is fixed to the fixed base 2, and the cylinder 1 is installed at the other end of the cylinder seat 12. In this way, the cylinder 1 is also installed on the slider 20 through the cylinder seat 12. When the slider 20 slides, it can drive the cylinder 1 to slide together, thereby greatly increasing the flexibility of operation and making the structure of the entire device very compact and space-saving.

[0027] like Figure 1 , 3 As shown, the end of the cylinder seat 12 is also provided with a screw hole 121 that is fixedly connected to the longitudinal part 52 of the lead wire seat 5. In this way, the lead wire seat 5 and the cylinder seat 12 are assembled together to form a three-sided clamping structure for the movable clamping assembly 3 and the fixed seat 2, which provides more reliable protection for the movable clamping assembly 3 and the fixed seat 2, thereby further protecting the V-shaped wire clamping groove 21 from external interference in the open or clamped state, thus ensuring its stable operation.

[0028] like Figure 1 , 3 As shown, the end of the cylinder seat 12 is also provided with a nesting protrusion 122 that nests together with the longitudinal portion 52. In this way, the end of the cylinder seat 12 and the end of the longitudinal portion 52 are nested together, making the assembly structure between the two more stable.

[0029] To facilitate the assembly of the various components, such as Figure 1 ,3 As shown in Figure 5, each of the four corners of the fixed base 2 is provided with a screw hole for fixing together with the slider 20. The sides and ends of the fixed base 2 are respectively provided with screw holes for mounting the longitudinal part 52 of the lead wire seat 5 and for mounting the cylinder seat 12. In this way, the various components can be easily assembled together with screws. The hinge protrusion 221 and the hinge part 311 are respectively provided with through holes for the hinge pin to pass through.

Claims

1. A lead feeding structure applied to the production of ceramic capacitors and varistors, comprising a sliding rail (10), a sliding block (20) arranged on the sliding rail (10), and a pneumatic cylinder (1) with a piston rod (11), wherein a fixed seat (2) and a movable clamp assembly (3) are arranged on the sliding block (20), characterized in that: The inner lower part of the movable clamp assembly (3) is connected with the fixed seat (2) in a hinged manner, and a V-shaped clamping groove (21) is formed on the top surface between the movable clamp assembly (3) and the fixed seat (2); a reset spring (30) is arranged between the lower end of the movable clamp assembly (3) and the sliding block (20), and under the action of the reset spring (30), the V-shaped clamping groove (21) is in a clamping state; the air cylinder (1) is arranged above the movable clamp assembly (3), and when the piston rod (11) presses the outer side of the movable clamp assembly (3), the V-shaped clamping groove (21) is in an open state.

2. The lead feeding structure for ceramic capacitor and varistor production according to claim 1, wherein: The movable clamp assembly (3) comprises a clamping part (31) and a reset part (32); the outer side of the clamping part (31) is fixed to the top surface of the reset part (32); the inner bottom surface of the clamping part (31) is provided with a hinge part (311), the inner side of the fixed seat (2) is provided with a hinge seat (22) assembled with the hinge part (311), and a V-shaped clamping groove (21) is formed on the top surface between the clamping part (31) and the fixed seat (2); the reset spring (30) is arranged between the lower end of the reset part (32) and the sliding block (20).

3. The lead feeding structure for ceramic capacitor and varistor production according to claim 2, wherein: The hinge seat (22) comprises two hinge protrusions (221) arranged side by side, and the top edge of the hinge protrusion (221) is in an arc structure; the hinge cavity (222) for accommodating the hinge part (311) is formed between the two hinge protrusions (221).

4. The lead feeding structure for ceramic capacitor and varistor production according to claim 2, wherein: The lower end of the reset part (32) is provided with an embedding hole (321) for embedding the reset spring (30).

5. The lead feeding structure for ceramic capacitor and varistor production according to claim 1, wherein: The end of the V-shaped clamping groove (21) is provided with a lead plate (4) with a lead hole (41), and the center of the lead hole (41) is arranged in alignment with the center of the V-shaped clamping groove (21).

6. The lead feeding structure for ceramic capacitor and varistor production according to claim 5, wherein: It also comprises a lead seat (5) with a lead groove (51), and the two ends of the lead groove (51) are arranged in alignment with the V-shaped clamping groove (21) and the lead hole (41) respectively.

7. The lead feeding structure for ceramic capacitor and varistor production according to claim 6, wherein: The lead seat (5) is composed of a longitudinal part (52) and a transverse part (53) connected integrally, the longitudinal part (52) is fixed to the side surface of the fixed seat (2), and the transverse part (53) is attached to the end of the fixed seat (2) and the movable clamp assembly (3), so that the transverse part (53) is arranged in a covering manner with the fixed seat (2) and the movable clamp assembly (3); the lead groove (51) is arranged on the top surface of the transverse part (53), and the lead plate (4) is arranged on the side surface of the transverse part (53).

8. The lead feeding structure for ceramic capacitor and varistor production according to claim 7, wherein: The other end of the fixed seat (2) is also provided with a cylinder seat (12), one end of the cylinder seat (12) is fixed to the fixed seat (2), and the air cylinder (1) is installed at the other end of the cylinder seat (12).

9. The lead feeding structure for ceramic capacitor and varistor production according to claim 8, wherein: The end of the cylinder seat (12) is also provided with a screw hole (121) fixedly connected with the longitudinal part (52) of the lead seat (5).

10. The lead feeding structure for ceramic capacitor and varistor production according to claim 8, wherein: The end of the cylinder seat (12) is also provided with a nesting protrusion (122) nested with the longitudinal part (52).

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