Automatic tinned tube cutting device

Abstract

This utility model discloses an automatic wire cutting and tinning sleeve device, including a frame. A bare wire supply mechanism is located on one side of the frame, and a sleeve supply mechanism is located on the other side. A bare wire moving mechanism is located between the bare wire supply mechanism and the sleeve supply mechanism. The bare wire supply mechanism includes a fixed clamp and a wire cutting assembly. A tinning mechanism is located on one side of the wire cutting assembly. The tinning mechanism contacts the bare wire and tins it by lifting and lowering. The sleeve supply mechanism includes a sleeve clamp that can move in the opposite direction to the movement of the bare wire. The sleeve opening held by the sleeve clamp faces the bare wire, and the axis of the bare wire passes through the sleeve. A hot air fan is lifted and lowered on the frame, and the air outlet of the hot air fan is located above the sleeve moving path. This utility model can replace manual labor in completing the three processes of cutting, tinning, and sleeve insertion, reducing labor consumption, improving production efficiency, and effectively improving the accuracy of cutting and sleeve positioning, reducing errors in subsequent heat shrinking positions, and improving quality stability.

Description

Technical Field

[0001] This utility model relates to the field of wire processing technology, specifically to an automatic wire cutting and tinning sleeve equipment. Background Technology

[0002] Connectors, also commonly referred to as joints or plugs in China, are electrical connectors used to connect two active devices and transmit current or signals. Their wiring typically consists of an inner bare conductor and an outer heat-shrink tubing. The bare conductor is usually made of multiple strands of fine metal wire twisted together.

[0003] Before product assembly, the bare wires need to be processed. First, the bare wires are cut to the specified length; second, the bare wires are locally tin-plated (the core function of which is to fuse multiple strands of fine wires to form a dense connection); finally, heat-shrink tubing is threaded onto the bare wires and heated to shrink and fix them.

[0004] In the existing technology, each wire requires three manual processes: cutting, tinning, and sheathing. The process is cumbersome, highly repetitive, labor-intensive, and has low production efficiency. Furthermore, manual cutting of the length is prone to errors, and the position of the sheath can be offset, resulting in inaccurate positioning of the sheath and subsequent errors in heat shrinking, leading to poor quality stability. Utility Model Content

[0005] The purpose of this utility model is to provide an automatic wire cutting and tin plating sleeve equipment that can replace manual labor in completing the three processes of cutting, tin plating, and sleeve insertion, thereby reducing labor consumption, improving production efficiency, and effectively improving the accuracy of cutting and sleeve positioning, reducing errors in subsequent heat shrinking positions, and improving quality stability.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an automatic wire cutting and tinning sleeve device, including a frame, a bare wire supply mechanism on one side of the frame, and a sleeve supply mechanism on the other side. A bare wire moving mechanism is provided between the bare wire supply mechanism and the sleeve supply mechanism. The bare wire supply mechanism includes a fixed clamp and a wire cutting assembly. A tinning mechanism is provided on the side of the wire cutting assembly away from the fixed clamp. The tinning mechanism contacts the bare wire and tinns it by lifting and lowering. The sleeve supply mechanism includes a sleeve clamp that can move in the opposite direction to the movement direction of the bare wire. The sleeve opening held by the sleeve clamp faces the bare wire, and the axis of the bare wire passes through the sleeve. A hot air fan is lifted and lowered on the frame, and the air outlet of the hot air fan is located above the sleeve moving path.

[0007] A further improvement of this utility model is that the bare wire moving mechanism includes a fixed-length gripper and a movable gripper group that are movable along the bare wire conveying direction. The movable gripper group is located below the fixed-length gripper and includes two movable grippers spaced apart. After the fixed-length gripper pulls out a fixed length of bare wire, the movable gripper group clamps the bare wire from the side of the fixed-length gripper that is close to the fixed gripper.

[0008] A further improvement of this utility model is that the sleeve clamp is provided with a telescopic clamp on the side near the fixed clamp, which is driven to extend and retract by a telescopic rod, and the extension and retraction direction of the telescopic rod is perpendicular to the movement direction of the bare line on the water surface.

[0009] A further improvement of this utility model is that the tin plating mechanism includes an upper heating head and a lower support head, which are respectively arranged above and below the bare wire conveying path, and are both driven by a telescopic rod to perform lifting and lowering movements. A tin wire feeding component is provided on one side of the upper heating head, and the tin wire output by the tin wire feeding component is located below the heating surface of the upper heating head.

[0010] A further improvement of this utility model is that the upper heating head is fixed on the surface of the vertical plate, and the solder wire feeding assembly includes an angle adjustment component disposed on the vertical plate and located on one side of the upper heating head. The adjustment end of the angle adjustment component is provided with a guide tube, and the outlet of the guide tube faces downwards from the heating surface of the upper heating head.

[0011] A further improvement of this utility model is that the casing supply mechanism further includes a casing conveying assembly, and a casing cutting assembly is provided between the casing conveying assembly and the casing clamp. The casing cutting assembly includes a fixed cutter and a movable cutter located above the fixed cutter. The movable cutter is driven by a power source to perform lifting and cutting.

[0012] A further improvement of this utility model is that the wire cutting assembly includes a finger clamp cylinder, and two cutting blades are provided opposite to each other on the two clamping fingers of the finger clamp cylinder. The area between the two cutting blades forms a cutting opening, and the movement path of the bare wire passes through the cutting opening.

[0013] A further improvement of this utility model is that a wire collection box is provided below the retracted position of the telescopic gripper to cooperate with it.

[0014] A further improvement of this utility model is that the air outlet of the hot air blower is provided with a sealing hood, and the sealing hood has an air guide port extending through the bottom surface of the sleeve to be heated along the length of the sleeve, the width of the air guide port being greater than the width of the sleeve.

[0015] A further improvement of this utility model is that the fixed-length gripper, the movable gripper, and the telescopic gripper are all rotary opening and closing grippers.

[0016] The beneficial effects of this utility model are as follows: This invention, by incorporating a bare wire supply mechanism, a sleeve supply mechanism, a bare wire moving mechanism, an automatic wire cutting component, a lifting tinning mechanism, and a hot air blower, can replace manual labor in completing the three processes of cutting, tinning, and sleeve insertion, thus reducing manpower consumption. The fixed grippers, wire cutting component, and fixed-length grippers work together to achieve precise cutting, effectively reducing cutting errors. The sleeve grippers hold the sleeve and place it on the bare wire. The hot air blower, through lifting and lowering, positions and heats the sleeve, initially fixing it in place and ensuring precise and uniform positioning of the sleeve on the bare wire, avoiding errors in subsequent heat shrinking.

[0017] This invention utilizes a combination of fixed-length grippers and movable gripper assemblies to achieve segmented relay conveying. After the fixed-length grippers pull out the bare wire, the movable gripper assemblies perform a secondary clamping. The fixed-length grippers ensure accurate cutting length. When the fixed-length grippers release the bare wire, the movable gripper assemblies maintain clamping. The two spaced movable grippers reduce the sag of the bare wire, improving transmission stability. Compared to simply pulling the bare wire to the sleeve using the fixed-length grippers, the relay force of the movable gripper assemblies allows the fixed-length grippers to release, exposing one end of the bare wire and reducing interference between the grippers and the sleeve, thus facilitating subsequent alignment operations when inserting the sleeve.

[0018] This invention uses a sleeve clamp to hold the cut sleeve section. The sleeve clamp moves towards the bare wire and places the sleeve section onto one end of the cut bare wire. Initially, a small section is placed on the sleeve. At this time, the bare wire is stably supported by the sleeve section and the telescopic clamp. The two movements can release the bare wire to avoid the sleeve and prevent interference with the movement of the sleeve clamp, so that the sleeve clamp can continue to extend and place the entire sleeve section on the bare wire section.

[0019] The sleeve cutting assembly of this invention is located between the sleeve conveying assembly and the sleeve clamp, improving the continuity of sleeve length cutting and supply. The moving cutter lifts and cuts in conjunction with the fixed cutter to ensure that each sleeve section is of consistent length. After cutting, the sleeve clamp directly picks up the sleeve for insertion, reducing the time for secondary sleeve positioning and improving continuity.

[0020] In this invention, the upper heating head and the lower support head are arranged opposite each other. The upper heating head melts the solder wire, and the lower support head supports the bare wire, so that the molten solder wraps around the section of the bare wire corresponding to the upper heating head and the lower support head, ensuring that the molten solder covers the multiple strands of metal wire in the bare wire. By setting an adjustable guide tube, the position and angle of the solder wire delivery can be flexibly controlled, so that the solder wire is supplied directly to the area below the heating surface and matches the heating surface of the upper heating head, ensuring that the solder wire falls accurately into the heating area.

[0021] This invention effectively utilizes telescopic grippers to automatically release the processed wire into the collection box when the grippers retract, achieving automated collection and reducing manual sorting steps. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural schematic diagram of the present invention.

[0023] Figure 2 This is a schematic diagram of the structure of this utility model.

[0024] Figure 3 This is a partially enlarged schematic diagram of the fixed gripper structure of this utility model.

[0025] Figure 4 This is a partially enlarged schematic diagram of the tin plating mechanism of this utility model.

[0026] Figure 5 This is a schematic diagram showing the engagement position of the movable gripper and the fixed-length gripper of this utility model. (Only the gripper fingers are shown in the diagram.) Figure 6 This is a partially enlarged schematic diagram of the casing supply mechanism of this utility model.

[0027] Figure 7 This is a schematic diagram showing the engagement position of the movable gripper and the sleeve gripper of this utility model.

[0028] In the diagram, 1-frame, 2-bare wire supply mechanism, 3-sleeve supply mechanism, 4-fixed gripper, 5-sleeve gripper, 6-hot air blower, 7-fixed length gripper, 8-moving gripper, 9-upper heating head, 10-lower support head, 11-solder wire feeding assembly, 12-vertical plate, 13-angle adjustment component, 14-guide tube, 15-sleeve conveying assembly, 16-fixed cutter, 17-moving cutter, 18-power source, 19-finger clamp cylinder, 20-cutter, 21-sealing hood, 22-air vent, 23-telescopic gripper, 24-first mounting frame, 25-second mounting frame, 26-bare wire, 27-sleeve. Detailed Implementation

[0029] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0030] Example 1: Combination Figures 1-7 It can be seen that an automatic wire cutting and tin plating sleeve equipment includes a frame 1, and one side of the frame 1 (i.e. Figure 2 On the left side of the structure, there is a bare wire supply mechanism 2, and on the other side (i.e., Figure 2 On the right side of the structure, a tubing supply mechanism 3 is provided. A bare wire moving mechanism is provided between the bare wire supply mechanism 2 and the tubing supply mechanism 3. The bare wire supply mechanism 2 includes a fixed clamp 4 and a wire cutting assembly. A tin plating mechanism is provided on the side of the wire cutting assembly away from the fixed clamp 4. The tin plating mechanism contacts the bare wire through lifting and lowering to tin it. The tubing supply mechanism 3 includes a mechanism that can move along the direction of the bare wire (i.e., Figure 2 (From left to right) move in the opposite direction (i.e.) Figure 2The sleeve clamp 5 (moving from right to left) holds the sleeve opening facing the bare wire, with the axis of the bare wire passing through the sleeve. A hot air fan 6 is raised and lowered on the frame 1, with the air outlet of the hot air fan 6 located above the sleeve's moving path. The bare wire supply mechanism 2 also includes a supply component (such as an unwinding roller, not shown in the figure) for releasing the bare wire, which is positioned in the initial source direction of the bare wire. The bare wire moving assembly pulls the bare wire out from the supply component.

[0031] The bare wire moving mechanism includes a fixed-length gripper 7 and a movable gripper group that are movable along the bare wire conveying direction. The movable gripper group is located below the fixed-length gripper 7 and includes two spaced-apart movable grippers 8. The fixed-length gripper 7 is initially positioned close to the fixed gripper 4. After a fixed length of bare wire is pulled out, the movable gripper group moves along the guide rail on the frame 1 to the side of the fixed-length gripper 7 closest to the fixed gripper 4 (i.e.,...). Figure 2 The left side of the fixed-length clamp 7 holds the bare wire segment.

[0032] Both the fixed-length gripper 7 and the movable gripper 8 move horizontally on the frame 1 via their respective drive devices (such as a motor-driven lead screw slide or a cylinder-driven slide rail mechanism). The gripping part of the fixed-length gripper 7 is positioned downwards, while the gripping part of the movable gripper 8 is positioned upwards, and the two are offset in the vertical direction to avoid interference.

[0033] After the fixed-length clamp 7 pulls out a fixed length of bare wire, the movable clamp assembly clamps the bare wire from the side of the fixed-length clamp 7 closest to the fixed clamp 4. The fixed-length clamp 7 is positioned downwards, and the movable clamp 8 is positioned upwards.

[0034] The sleeve clamp 5 has a telescopic clamp 23 on the side near the fixed clamp 4, which is driven to extend and retract by a telescopic rod. The extension and retraction direction of the telescopic rod is perpendicular to the movement direction of the bare line on the water surface. The telescopic clamp 23 is used to clamp and support the bare line before inserting the sleeve and to release the line afterward.

[0035] Preferably, the frame 1 includes a table, on which a first mounting frame 24 and a second mounting frame 25 are arranged in parallel. The bare wire conveying path is located between the first mounting frame 24 and the second mounting frame 25. The fixed gripper 4, the wire cutting assembly, the fixed length gripper 7, the tin plating mechanism, and the hot air blower 6 are all arranged on the first mounting frame. The telescopic rod of the telescopic gripper 23 and the sleeve gripper 5 are arranged on the second mounting frame. The sleeve gripper 5 is moved horizontally on the second mounting frame 25 by a driving device (such as a motor-driven lead screw slide or a cylinder-driven slide rail mechanism).

[0036] The tin plating mechanism includes an upper heating head 9 and a lower support head 10. The upper heating head 9 and the lower support head 10 are positioned above and below the bare wire transport path, respectively, and are driven by their respective independent telescopic rods to perform lifting and lowering movements. A solder wire feeding assembly 11 is provided on one side of the upper heating head 9. The solder wire feeding assembly 11 is a conventional solder wire feeding assembly used in the prior art for feeding solder wire. The solder wire continuously or on demand is located below the heating surface of the upper heating head 9 so that it can melt and drip or contact the bare wire.

[0037] In the wire processing technology involved in this utility model, the bare wire conductor is made of multiple strands of fine metal wires twisted together. Inevitably, tiny gaps exist between these strands, forming potential capillary channels for fluids (such as moisture or corrosive gases). To achieve a highly reliable seal (especially airtightness or waterproofness) at the wire connection points, conventional existing technologies involve localized tin plating of the bare wire conductor. This tin plating does not cover the entire length of the bare wire conductor, but is controlled within a specific section. The core principle is that molten solder penetrates and fills all the gaps between the multiple strands of fine wires in this section during the tin plating process, transforming this section of conductor from a multi-strand discrete structure into a dense metallic entity. This small, dense "tin plug" effectively blocks the path of moisture or gas to penetrate into the connector or deeper into the wire along the capillary channels inside the conductor. Subsequently, after inserting and heat-shrinking an external sleeve (preferably an adhesive-coated double-walled heat-shrink sleeve), the sleeve forms a tight external sealing layer with the outer surface of the conductor and adjacent components (such as waterproof plugs). This internal "tin-plated plug," working in conjunction with the external heat-shrink sealing layer, forms a complete double-sealing barrier, achieving reliable internal and external isolation with minimal process complexity and material cost. Therefore, only a small section of tin needs to be plated to meet overall airtightness requirements, avoiding the additional costs, weight increases, and reduced flexibility associated with overall tin plating.

[0038] The heating surface temperature of the upper heating head 9 can be controlled at 250-350℃ to melt the solder wire. The lower support head 10 can be made of a high-temperature resistant thermally conductive material (such as copper alloy). To prevent molten solder from adhering to the surface of the support head, the working surface of the lower support head 10 is preferably treated with anti-soldering, such as nickel plating or spraying a high-temperature resistant non-stick coating. Preferably, the upper heating head 9 and the lower support head 10 are provided with arc surfaces that mate with the bare wire; these arc surfaces, after the aforementioned treatment, can effectively reduce solder adhesion.

[0039] The upper heating head 9 is fixed to the surface of the vertical plate 12. The solder wire feeding assembly includes an angle adjusting component 13 located on the vertical plate 12 and on one side of the upper heating head 9. The adjusting end of the angle adjusting component 13 is provided with a guide tube 14, and the outlet of the guide tube 14 faces downwards from the heating surface of the upper heating head 9. The angle adjusting component 13 is a conventional component in the prior art that can adjust the angle of the guide tube 14. Preferably, it includes a fixed base set on the surface of the vertical plate 12. An adjusting arm is bolted to the fixed base. The adjusting arm is bolted to the fixed base and the angle can be adjusted by loosening the bolt. A secondary adjusting base is also bolted to the adjusting arm. The secondary adjusting base is bolted to the adjusting arm and its angle can be adjusted by loosening its corresponding bolt. The secondary adjusting base is provided with a guide hole, and the guide tube 14 is fixedly connected in the guide hole.

[0040] Preferably, vertical telescopic rod mounting plates are respectively provided above and below the bare wire conveying path on the frame 1. Each telescopic rod (such as a cylinder or electric push rod) is vertically mounted on its corresponding telescopic rod mounting plate and drives the corresponding component to rise and fall. The vertical plate 12 is slidably connected to the surface of the upper telescopic rod mounting plate via a slide rail, and its bottom is connected to the end of the upper telescopic rod. A lower vertical plate is slidably connected to the lower telescopic rod mounting plate via a slide rail, and the lower vertical plate is connected to the end of the lower telescopic rod. The lower support head 10 is disposed on the surface of the lower vertical plate. By extending and retracting the telescopic rods, the lifting height and contact pressure of the upper heating head 9 and the lower support head 10 can be precisely controlled.

[0041] The casing supply mechanism 3 also includes a casing conveying assembly 15. A casing cutting assembly is disposed between the casing conveying assembly 15 and the casing clamp 5. The casing cutting assembly includes a fixed cutter 16 and a movable cutter 17 located above the fixed cutter 16. The movable cutter 17 is driven by a power source 18 (such as a cylinder) to perform lifting and cutting. Preferably, both the fixed cutter 16 and the movable cutter 17 are provided with V-shaped cuts that cooperate with the casing.

[0042] To provide stable support, a first mounting plate is horizontally fixed on one side of the frame 1, and the fixing gripper 4 and the cutting assembly are mounted on the first mounting plate. A second mounting plate is horizontally fixed on the other side of the frame 1, and the sleeve cutting assembly and the sleeve conveying assembly 15 are both mounted on the second mounting plate. The sleeve supply mechanism 3 also includes a sleeve unwinding roller (which may be equipped with a tension controller), which pulls the sleeve out from the sleeve unwinding roller and releases it to the predetermined cutting position via the sleeve conveying assembly 15.

[0043] The sleeve conveying assembly 15 is a conventional clamping roller conveyor. The distance between the two clamping rollers is slightly smaller than the outer diameter of the sleeve (e.g., 0.1-0.5 mm smaller), which facilitates the conveying of the sleeve and provides appropriate friction. The sleeve conveying assembly 15 has guide components (e.g., guide sleeves or guide blocks with guide holes whose inner diameter matches the outer diameter of the sleeve) at both the front and rear ends to facilitate the guiding of the sleeve. The guide channels of the two guide components are coaxially arranged and cooperate with the clamping position of the sleeve clamping claw 5 and the subsequent sleeve application path. When the sleeve is applied to the bare wire, the tin-plated portion of the bare wire is encased inside the sleeve.

[0044] The wire cutting assembly includes a finger-grip cylinder 19, on which two fingers of the finger-grip cylinder 19 are respectively provided with cutting blades 20 facing each other. The area between the two cutting blades 20 forms a cutting opening, through which the movement path of the bare wire passes. The cutting edges of the two cutting blades 20 are staggered to avoid direct collision during cutting.

[0045] Below the retracted position of the telescopic gripper 23 is a wire collection box (not shown in the figure) that works in conjunction with it. This allows the processed wire to fall directly into the box for collection after the telescopic gripper 23 is released.

[0046] The hot air blower 6 has a sealed air hood 21 at its outlet. An air guide 22 extends through the bottom surface of the sleeve to be heated along the length of the sleeve. The width of the air guide 22 is greater than the width of the sleeve, preferably 1.5-3 times the outer diameter of the sleeve, to ensure that the hot air can evenly cover the area around the sleeve that needs to be pre-fixed. The length of the air guide 22 is slightly greater than the local length of the sleeve that needs to be preheated and shrunk. The hot air blower 6 is driven to rise and fall by a telescopic rod (e.g., a cylinder or electric cylinder).

[0047] This invention relates to an automatic wire cutting and tinning sleeve device. A hot air blower (6) performs preliminary heat shrinking on the sleeves fitted onto the bare wire, initially fixing the sleeves' position on the wire (especially the tinned section) and effectively preventing slippage or displacement during subsequent transfer. Compared to manual operation, this step significantly improves the accuracy, consistency, and stability of sleeve positioning, providing a reliable foundation for subsequent processes. It should be noted that the hot air blower only achieves the pre-positioning of the sleeves; the final overall heat shrink sealing (i.e., the uniform shrinkage of the sleeve along its entire length to form a sealing layer) requires a separate subsequent process, and this invention does not involve overall heat shrinking.

[0048] In existing technologies, overall heat shrinking is typically achieved using specialized equipment. For example, a wire assembly with a pre-fixed sleeve is fed into a hot air tunnel or oven with specific temperature and time parameters. Uniform hot air causes the sleeve to shrink evenly along its entire length, tightly wrapping the bare wire and adjacent components to form a final seal. The core of this invention lies in automating the wire cutting, tinning, sleeve installation, and preliminary fixing processes, ensuring precise and consistent sleeve positioning and providing a qualified semi-finished product for the overall heat shrinking process.

[0049] The fixed-length gripper 7, the movable gripper 8, and the telescopic gripper 23 are all rotary opening and closing grippers. For example, grippers driven by pneumatic or electric rotary cylinders achieve opening and closing actions through rotation.

[0050] The casing clamp 5 is designed to accommodate the length of the casing section, and thus has a relatively long clamping length. Preferably, its structure includes an upper clamping part and a lower clamping part arranged opposite each other, both driven by a drive device (such as a cylinder or motor) to perform opening and closing movements (i.e., closing and separating). Multiple parallel vertical clamping plates are alternately fixed on the lower surface of the upper clamping part and the upper surface of the lower clamping part. All clamping plates have V-shaped openings, and the V-shaped openings of the upper clamping plate and the lower clamping plate cooperate with each other. When the clamps are closed, these alternately cooperating V-shaped openings together form a stable and uniform clamping of the entire length of the casing section, preventing it from tilting or slipping during movement. While waiting for the casing conveying assembly 15 to convey the casing, the casing clamps 5 remain open (the upper and lower clamping parts are separated); after the casing is conveyed to the predetermined cutting position and cut by the cutting assembly to form a casing section, the casing clamps 5 immediately close, clamping the casing section through their upper and lower V-shaped jaws.

[0051] The working principle of the automatic wire cutting and tin plating sleeve equipment provided by the utility model is as follows: When the equipment is working, the fixed jaws of the bare wire supply mechanism hold the wire, and the fixed-length jaws clamp the end of the bare wire. Then, the fixed jaws release, and the fixed-length jaws pull the bare wire out to a predetermined length before the fixed jaws clamp the wire again. The tin-plating mechanism's tin wire feeding assembly delivers the tin wire to below the heating surface of the upper heating head. The upper heating head and lower support head rise and fall in coordination with the bare wire to melt the tin wire. Under the influence of gravity, capillary action, and the support of the lower support head 10, the molten tin wraps around the corresponding strands of metal wire on the bare wire, completing local tin plating. After tin plating is completed, the upper heating head 9 and the lower support head 10 rise and fall to reset, respectively, and detach from the bare wire. Tin wire feeding stops. The moving jaw assembly moves below the bare wire to clamp it, and the finger-clamping cylinder 19 of the wire cutting assembly drives the two clamping fingers with cutters 20 to close, cutting the bare wire between the fixed jaw 4 and the moving jaw assembly. At this point, a section of bare wire that has completed tin plating (held at one end by the fixed-length clamp 7 and in the middle by the moving clamp assembly) is separated. The fixed and fixed-length clamps then release, and the moving clamps transfer the cut bare wire section to the tubing station. The telescopic clamps extend to hold the bare wire and provide support. The tubing supply mechanism supplies material through the tubing conveying assembly, supports the conveyed tubing through the tubing clamps, and then the tubing cutting assembly cuts the tubing. The tubing clamps hold the cut tubing section and move it towards the bare wire, placing the front end (pipe opening) of the tubing section onto the end of the bare wire, initially fitting a small section (e.g., 2-5mm). At this point, the bare wire is supported by the tubing section and the telescopic clamp 23. The moving clamp assembly releases the bare wire and descends to its original position to avoid obstructing the subsequent movement of the tubing clamp 5. The tubing clamps continue to move, fitting the entire tubing section onto the bare wire. Driven by the lifting mechanism, the hot air blower 6 descends, aligning the air guide 22 of the sealing hood 21 with and approaching the localized area on the sleeve section that requires heat shrinking (usually near one end of the sleeve). The hot air blower 6 blows out hot air, which locally heats the sleeve through the air guide 22, causing it to shrink and initially fixing the sleeve to the bare wire to facilitate subsequent heat shrinking processes. Then, the telescopic grippers retract and open, automatically releasing the processed wire into the collection box for automated collection, realizing automatic and continuous operation of cutting, tinning, and sleeve insertion.

[0052] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing 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. Any equivalent structural or procedural transformations made using the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An automatic wire cutting and tin-plating sleeve device, characterized in that: The device includes a frame (1), a bare wire supply mechanism (2) on one side of the frame (1) and a sleeve supply mechanism (3) on the other side. A bare wire moving mechanism is provided between the bare wire supply mechanism (2) and the sleeve supply mechanism (3). The bare wire supply mechanism (2) includes a fixed clamp (4) and a wire cutting assembly. A tin plating mechanism is provided on the side of the wire cutting assembly away from the fixed clamp (4). The tin plating mechanism contacts the bare wire by lifting and tin plating it. The sleeve supply mechanism (3) includes a sleeve clamp (5) that can move in the opposite direction of the bare wire's movement. The sleeve opening held by the sleeve clamp (5) faces the bare wire and the axis of the bare wire passes through the sleeve. A hot air blower (6) is lifted and lowered on the frame (1). The air outlet of the hot air blower (6) is located above the sleeve moving path.

2. The automatic wire cutting and tin-plating sleeve equipment according to claim 1, characterized in that: The bare wire moving mechanism includes a fixed-length gripper (7) and a movable gripper group that are movable along the bare wire conveying direction. The movable gripper group is located below the fixed-length gripper (7) and includes two movable grippers (8) spaced apart. After the fixed-length gripper (7) pulls out a fixed length of bare wire, the movable gripper group clamps the bare wire from the side of the fixed-length gripper (7) near the fixed gripper (4).

3. The automatic wire cutting and tin-plating sleeve equipment according to claim 2, characterized in that: The sleeve clamp (5) is provided with a telescopic clamp (23) driven to extend and retract by a telescopic rod on the side near the fixed clamp (4). The extension and retraction direction of the telescopic rod is perpendicular to the movement direction of the bare line on the water surface.

4. The automatic wire cutting and tin-plating sleeve equipment according to claim 1, characterized in that: The tin plating mechanism includes an upper heating head (9) and a lower support head (10). The upper heating head (9) and the lower support head (10) are positioned opposite each other above and below the bare wire conveying path, and are both driven by a telescopic rod to perform lifting and lowering movements. A tin wire feeding assembly (11) is provided on one side of the upper heating head (9), and the tin wire output by the tin wire feeding assembly is located below the heating surface of the upper heating head (9).

5. The automatic wire cutting and tin-plating sleeve equipment according to claim 4, characterized in that: The upper heating head (9) is fixed on the plate surface of the vertical plate (12). The solder wire feeding assembly includes an angle adjustment component (13) disposed on the vertical plate (12) and located on one side of the upper heating head (9). The adjustment end of the angle adjustment component (13) is provided with a guide tube (14), and the outlet of the guide tube (14) faces downwards from the heating surface of the upper heating head (9).

6. An automatic wire cutting and tin-plating sleeve device according to claim 1 or 2, characterized in that: The casing supply mechanism (3) further includes a casing conveying assembly (15), and a casing cutting assembly is provided between the casing conveying assembly (15) and the casing clamp (5). The casing cutting assembly includes a fixed cutter (16) and a movable cutter (17) located above the fixed cutter (16). The movable cutter (17) is driven by a power source (18) to perform lifting and cutting.

7. The automatic wire cutting and tin-plating sleeve equipment according to claim 1, characterized in that: The wire cutting assembly includes a finger clamp cylinder (19), on which two fingers of the finger clamp cylinder (19) are provided with cutting blades (20) facing each other, and the area between the two cutting blades (20) forms a cutting opening, through which the movement path of the bare wire passes.

8. The automatic wire cutting and tin-plating sleeve equipment according to claim 3, characterized in that: Below the retracted position of the telescopic gripper (23) is a wire collection box that works in conjunction with it.

9. The automatic wire cutting and tin-plating sleeve equipment according to claim 1, characterized in that: The hot air blower (6) has a sealed hood (21) at its air outlet. The sealed hood (21) has an air guide (22) extending through the bottom surface of the sleeve to be heated along the length of the sleeve. The width of the air guide (22) is greater than the width of the sleeve.

10. An automatic wire cutting and tin-plating sleeve device according to claim 3, characterized in that: The fixed-length gripper (7), the movable gripper (8), and the telescopic gripper (23) are all rotating and opening grippers.

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