Capacitor pin soldering anti-sticking device
By using a sliding soldering head and a blocking strip in the capacitor lead soldering device, the problem of lead adhesion and lifting was solved, achieving efficient and reliable lead soldering and improving product quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN CHENGDONG ELECTRONIC TECH CO LTD
- Filing Date
- 2025-08-22
- Publication Date
- 2026-07-21
AI Technical Summary
Existing capacitor lead soldering machines are prone to lead adhesion during the soldering process, leading to incomplete or excessive soldering, resulting in more defective products and affecting product quality and production efficiency.
Design a capacitor lead welding anti-sticking device, which uses a sliding first welding head and a second welding head, combined with a blocking bar and a cylinder-driven telescopic device. The blocking bar abuts the lead after welding to prevent the lead from being pulled up when the welding head is reset.
It effectively prevents the lead wire from adhering during the resetting of the welding head, avoids incorrect welding of the lead wire, improves the product qualification rate, and enhances production stability and efficiency.
Smart Images
Figure CN224526192U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of capacitor technology, specifically relating to a capacitor lead welding anti-sticking device. Background Technology
[0002] In the electronics manufacturing industry, capacitors, as an important energy storage component, are widely used in various electronic devices. The performance stability of a capacitor is closely related to the connection quality of its various components. Among them, the soldering quality between the capacitor body and the leads is one of the key factors affecting the electrical performance and service life of the capacitor.
[0003] To achieve efficient and reliable soldering of capacitor bodies and leads, capacitor lead soldering machines have been developed. The working principle of existing capacitor lead soldering machines is roughly as follows: First, the capacitor body is accurately placed on a feeding mechanism, which transports it to the soldering station. Next, the leads are placed at the lead soldering points on both sides of the capacitor body, ensuring a tight fit between the leads and the leads. Then, the soldering head applies pressure and heat to the connection between the capacitor body and the leads, melting and fusing the connection, thus completing the soldering process. The leads, once soldered to the capacitor body, become the capacitor leads.
[0004] However, existing capacitor lead soldering machines have a significant problem in actual production. Because capacitor leads are typically thin, the connection between the lead and the capacitor body needs to be melted during soldering to achieve the bond. However, in practice, if one end of the lead is melted but hasn't fully cooled and hardened before the soldering head quickly resets, the molten lead, due to its adhesive properties, is easily picked up and adhered to by the soldering head. This adhered lead is then carried to the lead soldering point of the next capacitor, where it is incorrectly soldered. This situation directly results in one capacitor having a missing lead and another having an extra lead, severely impacting product quality, causing a large number of defective products, increasing production costs, reducing production efficiency, and negatively affecting large-scale production. Utility Model Content
[0005] The purpose of this utility model is to provide a capacitor pin welding anti-sticking device, which aims to solve the technical problem of increased defective products caused by incomplete welding and excessive welding of capacitor pins in the existing capacitor pin welding device.
[0006] To achieve the above objectives, this utility model provides a capacitor pin welding anti-adhesion device, including a welding mechanism. The welding mechanism includes a slidably disposed first welding head and a second welding head. The first welding head and the second welding head are respectively connected to a driving device. A capacitor body is fixed between the first welding head and the second welding head, and the pin welding points on both sides of the capacitor body are respectively arranged corresponding to the first welding head and the second welding head. The driving device drives the first welding head and the second welding head to reciprocate relative to each other to achieve welding between the capacitor body and the pins. A blocking strip is provided above the first welding head and the second welding head, and the height of the blocking strip is higher than the highest point of the pin welding point. The two blocking strips are respectively connected to a telescopic device that drives the blocking strip to reciprocate relative to the pins of the capacitor body. When the first welding head and the second welding head move towards each other and finish welding between the capacitor body and the pins, the blocking strip abuts against the pins of the capacitor body. After the first welding head and the second welding head move away from each other, the blocking strip resets.
[0007] Preferably, the telescopic device is a cylinder.
[0008] Preferably, the cylinders are fixed to one side of the first welding head and the second welding head respectively. In the initial state, the cylinders are retracted, and the blocking strips are located directly above the first welding head and the second welding head respectively.
[0009] Preferably, a wire feeding mechanism is further provided above the welding mechanism. The wire feeding mechanism includes a first wire feeding jaw and a second wire feeding jaw respectively disposed on the first welding head and the second welding head. A gap is formed between the first welding head and the second welding head and the first wire feeding jaw and the second wire feeding jaw to allow the blocking strip to move. Preferably, a wire conveying mechanism is provided above the wire feeding mechanism, and the wire conveying mechanism is located between the first wire feeding jaw and the second wire feeding jaw.
[0010] Preferably, the transmission mechanism has two leads, and the distance between the two leads is greater than the distance between the two pins of the capacitor body.
[0011] Preferably, the wire feeding mechanism further includes a wire cutting component, which is disposed above the first wire feeding jaw and the second wire feeding jaw. The wire cutting component is connected to a cylinder to realize the opening and closing movement, thereby cutting the lead wire to a preset length.
[0012] Preferably, the first wire feeding claw and the second wire feeding claw are connected to the first welding head and the second welding head, respectively, and the first wire feeding claw and the second wire feeding claw can open and close relative to the first welding head and the second welding head to clamp and fix the lead wire.
[0013] Preferably, a feeding mechanism is provided between the first welding head and the second welding head.
[0014] Preferably, the feeding mechanism is a disc type, located between and below the first welding head and the second welding head, and the feeding mechanism rotates relative to the first welding head and the second welding head; multiple fixing clamps are arranged around the feeding mechanism, and a capacitor body is fixed in the fixing clamps. The capacitor body rotates between the first welding head and the second welding head under the drive of the feeding mechanism.
[0015] The capacitor lead welding anti-adhesion device provided in this embodiment of the utility model has at least one of the following technical effects:
[0016] This utility model discloses a capacitor lead welding anti-adhesion device. With the cooperation of a first welding head, a second welding head, a blocking strip, and a telescopic device, the blocking strip can abut the lead after welding, effectively preventing the lead from being accidentally welded to the next capacitor lead welding point when the welding head is reset. This fundamentally solves the problem of missing or extra leads in capacitors and significantly improves the product qualification rate.
[0017] This utility model discloses a capacitor pin welding anti-sticking device. With the cooperation of a cylinder in the telescopic device, the blocking bar can achieve rapid response and precise movement. The design of fixing the cylinder to the welding head ensures the coordination of movement between the blocking bar and the welding head, avoids the blocking bar from interfering with the welding process, and improves the stability and reliability of the device operation.
[0018] This utility model discloses a capacitor lead welding anti-sticking device. With the cooperation of the pre-reserved movable gap between the wire feeding mechanism and the blocking bar, the blocking bar can be smoothly reset after completing the action of abutting the lead. At the same time, it does not affect the wire feeding operation of the first wire feeding claw and the second wire feeding claw, ensuring the orderly connection between lead feeding and anti-sticking action and improving production continuity.
[0019] This utility model discloses a capacitor lead welding anti-sticking device. With the cooperation of a disc-type feeding mechanism and multiple fixing clamps, it can realize the continuous conveying and positioning of the capacitor body. Combined with the efficient operation of the anti-sticking device, the welding cycle of a single capacitor is greatly shortened, and the efficiency of mass production is significantly improved. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1This is a front view of a capacitor lead welding anti-sticking device provided in an embodiment of the present invention.
[0022] Figure 2 for Figure 1 Enlarged view of point A in the middle.
[0023] Figure 3 A perspective view of a capacitor pin welding anti-sticking device provided for an embodiment of this utility model.
[0024] Figure 4 for Figure 3 Enlarged view of point B in the middle.
[0025] The following are the labeling elements in the figure:
[0026] 10—Wire feeding mechanism; 11—Wire cutting assembly; 20—Wire delivery mechanism; 21—First wire delivery gripper.
[0027] 22—Second wire feed gripper; 30—Welding mechanism; 31—First welding head; 32—Second welding head
[0028] 40—Feeding mechanism; 41—Fixing clamp; 50—Limiting mechanism; 51—Cylinder; 52—Blocking bar
[0029] 60—Capacitor body; 61—Pin. Detailed Implementation
[0030] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.
[0031] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0033] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.
[0034] In one embodiment of this utility model, such as Figure 1-4 As shown, a capacitor lead welding anti-sticking device is provided, including a wire feeding mechanism 10, a wire delivery mechanism 20, a welding mechanism 30, a feeding mechanism 40, and a limiting mechanism 50 for producing and processing capacitors. The capacitor includes a capacitor body 60 and leads 61 located on both sides of the capacitor body 60.
[0035] The wire feeding mechanism 10 is located at the top of the device and in the middle position. Inside the wire feeding mechanism 10, there are two parallel lead wire feeding channels vertically arranged, and the distance between the two lead wire feeding channels is greater than the distance between the pins on both sides of the capacitor to be welded. The bottom surface of the wire feeding mechanism 10 is flat. The wire feeding mechanism 10 is used to continuously, stably, and controllably feed the uncut lead wires to the wire feeding mechanism 20 below. Through the design of parallel lead wire feeding channels, the independence of the two lead wires is ensured, reducing process interruptions caused by lead wire entanglement. At the same time, it can be adapted to capacitors with different pin spacings, improving the versatility of the device.
[0036] like Figure 2 As shown, a wire cutting assembly 11 is provided below the wire feeding mechanism 10. The wire cutting assembly 11 consists of two cutters. The cutters are slidably disposed on both sides of the bottom surface of the wire feeding mechanism 10 and are in contact with the bottom surface of the wire feeding mechanism 10. Each cutter is connected to a cylinder. When the lead wire is fed out from the bottom surface of the wire feeding mechanism 10 to a preset length through the lead wire feeding channel, the two cutters slide rapidly through the extension and retraction movement of the cylinders. The cutters cooperate with the bottom surface of the wire feeding mechanism 10 to apply shearing force to the lead wire and complete the cutting of the lead wire.
[0037] The wire feeding mechanism 20 includes a first wire feeding jaw 21 and a second wire feeding jaw 22. Both the first wire feeding jaw 21 and the second wire feeding jaw 22 are openable and closable cylinder jaw structures. The first wire feeding jaw 21 and the second wire feeding jaw 22 are symmetrically arranged below the wire feeding mechanism 10. The first wire feeding jaw 21 and the second wire feeding jaw 22 are respectively located on both sides of the capacitor body 60. The end of the first wire feeding jaw 21 and the second wire feeding jaw 22 adjacent to the capacitor body 60 is the clamping part. The clamping part of the first wire feeding jaw 21 and the second wire feeding jaw 22 is located directly below the uncut lead wire in the wire feeding mechanism 10. In the initial state, the first wire feeding jaw 21 and the second wire feeding jaw 22 are in the open state, receiving the lead wire fed by the wire feeding mechanism 10. After the lead wire is fed into place, the first wire feeding jaw 21 and the second wire feeding jaw 22 close to firmly clamp the lead wire, and then the wire cutting assembly 11 cuts the lead wire.
[0038] The welding mechanism 30 includes a first welding head 31 and a second welding head 32 that are slidably disposed. The first welding head 31 and the second welding head 32 are respectively disposed below the first wire feeding claw 21 and the second wire feeding claw 22. The first wire feeding claw 21 is disposed on the first welding head 31 and the second wire feeding claw 22 is disposed on the second welding head 32. The first welding head 31 and the second welding head 32 are respectively connected to a driving device (not shown). The driving device is preferably a cylinder. The driving device can drive the first welding head 31 and the second welding head 32 to reciprocate relative to each other, so that the first wire feeding claw 21 and the second wire feeding claw 22 can move synchronously with the first welding head 31 and the second welding head 32, respectively. The first welding head 31 and the second welding head 32 are adjacent to the capacitor body 60 at one end, which is a working end that is adapted to the capacitor leads 61. The working end has a built-in heating component, which allows the first welding head 31 and the second welding head 32 to apply pressure and heat at the same time when contacting the lead wire and the capacitor body, so that the lead wire and the capacitor body 60 are fused together. After the lead wire is welded, it becomes the leads 61 on both sides of the capacitor body 60, thus completing the welding. A gap is reserved between the working end and the clamping part.
[0039] The feeding mechanism 40 is located between the first welding head 31 and the second welding head 32. The feeding mechanism 40 includes a rotating disk and a driving device for driving the rotating disk to rotate. The rotating disk can rotate relative to the welding mechanism 30. A plurality of fixed clamps 41 are evenly arranged around the periphery of the rotating disk. The fixed clamps 41 are used to hold the capacitor body 60. The rotating disk rotates and the fixed clamps 41 drive the capacitor body 60 to rotate to the welding station. The lead welding points on both sides of the capacitor body 60 protrude from the fixed clamps 41, and the lead welding points are in contact with the end of the lead wire away from the tangent assembly 11 and are waiting to be welded.
[0040] There are two limiting mechanisms 50, each including a cylinder 51 and a blocking bar 52. The cylinder 51 is fixed to the side of the first welding head 31 and the second welding head 32, respectively. The output end of the cylinder 51 is connected to the blocking bar 52 via a connecting rod. The blocking bar 52 is a high-temperature resistant, non-deformable, and high-strength metal strip, and is perpendicular to the lead wire. When the cylinder 51 is in the retracted state, the blocking bar 52 is located in the gap between the welding head and the wire feeding jaws, tangentially behind the working end of the welding head. The height of the blocking bar 52 is higher than the lead welding point. When the cylinder 51 is in the extended state, the blocking bar 52 is pushed out of the working end of the welding head.
[0041] When the first welding head 31 and the second welding head 32 move toward the capacitor body 60, they simultaneously drive the cylinder 51 and the blocking bar 52 to approach the capacitor body 60. After the first welding head 31 and the second welding head 32 finish welding the lead wire, the cylinder 51 extends and drives the blocking bar 52 to move toward the working end of the welding head until it abuts against the lead wire welded to the capacitor body 60. At this time, the first welding head 31 and the second welding head 32 retract and reset, driving the limiting mechanism 50 to retract synchronously. At this time, the cylinder 51 extends and the speed of the cylinder 51 extension is consistent with the speed of the welding head retraction, so that the blocking bar 52 is kept in contact with the lead wire, thereby keeping the lead wire on the capacitor body 60 and preventing it from being taken away by the welding head. Subsequently, the blocking bar 52 separates from the lead wire under the driving force of the first welding head 31 and the second welding head 32 continuing to retract. At the same time, the blocking bar 52 resets under the action of the cylinder 51.
[0042] The working process of this embodiment is as follows:
[0043] In the initial state, the first welding head 31 and the second welding head 32 are positioned relatively far from the welding station, the first wire feeding jaw 21 and the second wire feeding jaw 22 are in the open state, and the two uncut leads in the wire feeding mechanism 10 are respectively inserted into the clamping parts of the first wire feeding jaw 21 and the second wire feeding jaw 22, and the end face of the lead is on the same horizontal plane as the bottom surface of the first welding head 31 and the second welding head 32; the cylinder 51 of the limiting mechanism 50 is in the retracted state, and the blocking bar 52 is located directly above the welding head.
[0044] At this time, the first wire feeding jaw 21 and the second wire feeding jaw 22 close to clamp the lead wire; the wire cutting assembly 11 of the wire feeding mechanism 10 moves under the drive of the cylinder, and the wire cutting assembly 11 cooperates with the bottom surface of the wire feeding mechanism 10 to form a shearing force, cutting the lead wire to a preset length.
[0045] Subsequently, the drive device of the welding mechanism 30 is activated, driving the first welding head 31 and the second welding head 32 to move towards each other, so that the first welding head 31 and the second welding head 32 move closer to the capacitor body 60, and simultaneously drive the first wire feeding claw 21, the second wire feeding claw 22 and the cylinder 51 and the blocking bar 52 of the limiting mechanism 50 to move.
[0046] At the same time, the feeding mechanism 40 rotates, driving the fixed clamp 41 and the capacitor body 60 it holds to rotate to the welding station between the first welding head 31 and the second welding head 32, with the leads 61 on both sides of the capacitor corresponding to the working ends of the first welding head 31 and the second welding head 32 respectively.
[0047] The first wire feeding jaw 21 and the second wire feeding jaw 22, carrying the cut lead wire, continue to move towards each other with the welding head until the lead wire contacts the welding point of the pins 61 on both sides of the capacitor. The first welding head 31 and the second welding head 32 then abut against the lead wire, and the welding of the lead wire to the capacitor body 60 is completed by heating and pressurizing.
[0048] After welding is completed, the cylinder 51 of the limiting mechanism 50 extends, driving the blocking bar 52 to move towards the lead wire until the blocking bar 52 abuts against the lead wire, thus limiting the lead wire.
[0049] Subsequently, the first wire feeding jaw 21 and the second wire feeding jaw 22 open, releasing the lead wire; the driving device drives the first welding head 31 and the second welding head 32 to move in the opposite direction to reset, synchronously driving the wire feeding jaw and the limiting mechanism 50 to reset. During this process, the cylinder 51 continues to extend, and the extension speed of the telescopic rod in the cylinder 51 is consistent with the speed of the welding head movement, so that the blocking bar 52 and the lead wire continue to be in contact until the blocking bar 52 moves from directly above the welding head to between the working end and the capacitor body, thereby keeping the lead wire at the pin 61.
[0050] Subsequently, as the first welding head 31 and the second welding head 32 continue to retract, the blocking strip 52 separates from the lead wire. At the same time, the blocking strip 52 is reset by the action of the cylinder 51.
[0051] Subsequently, the wire feeding mechanism 10 delivers new leads to the wire feeding grippers, and the feeding mechanism 40 continues to rotate, delivering the welded capacitor and simultaneously delivering the next capacitor body 60 to the welding station to enter the next welding cycle.
[0052] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A capacitor lead soldering anti-sticking device, characterized in that: The system includes a welding mechanism (30), which includes a first welding head (31) and a second welding head (32) that are slidably disposed. The first welding head (31) and the second welding head (32) are respectively connected to a driving device. A capacitor body (60) is fixed between the first welding head (31) and the second welding head (32), and the welding points of the leads (61) on both sides of the capacitor body (60) are respectively arranged corresponding to the first welding head (31) and the second welding head (32). The driving device drives the first welding head (31) and the second welding head (32) to reciprocate relative to each other to realize the welding of the capacitor body (60) and the leads (61). The first welding head (31) and the second welding head (32) are respectively provided with a blocking strip (52), and the height of the blocking strip (52) is higher than the highest point of the welding point of the pin (61). The two blocking strips (52) are respectively connected to a telescopic device that drives the blocking strip (52) to reciprocate relative to the pin of the capacitor body (60). When the first welding head (31) and the second welding head (32) move towards each other to weld the capacitor body (60) and the pin (61), the blocking strip (52) abuts against the pin (61) of the capacitor body (60). After the first welding head (31) and the second welding head (32) move away from each other, the blocking strip (52) resets.
2. The capacitor lead welding anti-sticking device according to claim 1, characterized in that: The telescopic device is a cylinder (51).
3. The capacitor lead welding anti-sticking device according to claim 2, characterized in that: The cylinder (51) is fixed to one side of the first welding head (31) and the second welding head (32). In the initial state, the cylinder (51) is retracted, and the blocking strip (52) is located directly above the first welding head (31) and the second welding head (32).
4. The capacitor lead welding anti-sticking device according to claim 1, characterized in that: Above the welding mechanism (30) is a wire feeding mechanism (20), which includes a first wire feeding claw (21) and a second wire feeding claw (22) respectively disposed on the first welding head (31) and the second welding head (32). A gap is formed between the first welding head (31), the second welding head (32) and the first wire feeding claw (21) and the second wire feeding claw (22) for the blocking bar (52) to move.
5. A capacitor lead welding anti-sticking device according to claim 4, characterized in that: A wire feeding mechanism (10) is provided above the wire feeding mechanism (20), and the wire feeding mechanism (10) is located between the first wire feeding jaw (21) and the second wire feeding jaw (22).
6. The capacitor lead welding anti-sticking device according to claim 5, characterized in that: The transmission mechanism (10) has two leads, and the distance between the two leads is greater than the distance between the two pins (61) of the capacitor body (60).
7. A capacitor lead welding anti-sticking device according to claim 5, characterized in that: The wire feeding mechanism (10) also includes a wire cutting assembly (11), which is located above the first wire feeding jaw (21) and the second wire feeding jaw (22). The wire cutting assembly (11) is connected to a cylinder (51) to realize the opening and closing movement, thereby cutting the lead wire to a preset length.
8. A capacitor lead welding anti-sticking device according to claim 4, characterized in that: The first wire feeding jaw (21) and the second wire feeding jaw (22) are respectively connected to the first welding head (31) and the second welding head (32). The first wire feeding jaw (21) and the second wire feeding jaw (22) can open and close relative to the first welding head (31) and the second welding head (32) to clamp and fix the lead wire.
9. A capacitor lead welding anti-sticking device according to claim 1, characterized in that: A feeding mechanism (40) is provided between the first welding head (31) and the second welding head (32).
10. A capacitor lead welding anti-sticking device according to claim 9, characterized in that: The feeding mechanism (40) is a disc type, located between the first welding head (31) and the second welding head (32) and below the first welding head (31) and the second welding head (32). The feeding mechanism (40) rotates relative to the first welding head (31) and the second welding head (32). Multiple fixing clamps (41) are provided around the feeding mechanism (40). A capacitor body (60) is fixed in the fixing clamp (41). The capacitor body (60) rotates between the first welding head (31) and the second welding head (32) under the drive of the feeding mechanism (40).