Automatic wire-cutting tin-plating sleeve equipment

Abstract

The invention discloses automatic wire cutting and tin plating sleeve equipment which comprises a rack, a bare wire supply mechanism is arranged on one side of the rack, a sleeve supply mechanism is arranged on the other side of the rack, a bare wire moving mechanism is arranged between the bare wire supply mechanism and the sleeve supply mechanism, the bare wire supply mechanism comprises a fixed clamping jaw and a wire cutting assembly, and a tin plating mechanism is arranged on one side of the wire cutting assembly. The tin plating mechanism is in contact with a bare wire through lifting to perform tin plating on the bare wire, the casing pipe supply mechanism comprises a casing pipe clamping jaw capable of moving in the reverse direction of the moving direction of the bare wire, a casing pipe opening clamped by the casing pipe clamping jaw faces the bare wire, the axis of the bare wire penetrates through the casing pipe, and an air heater is arranged on the rack in a lifting mode. The air outlet end of the air heater is located above the moving path of the sleeve. The device can replace manual work to complete the three procedures of cutting, tinning and sleeve penetrating, manpower consumption is reduced, the production efficiency is improved, the accuracy of cutting and sleeve positioning is effectively improved, the error of the follow-up thermal shrinkage position is reduced, and the quality stability is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wire processing, in particular to an automatic wire cutting, tinning and sleeve equipment. BACKGROUND

[0002] Connectors, also commonly known as connectors or plug-ins in China, mainly refer to electrical connectors used to connect two active devices and transmit current or signals. The matching wire is usually composed of an internal bare wire conductor and an external heat-shrinkable sleeve. Among them, the bare wire conductor is usually twisted by multiple thin metal wires.

[0003] Before product assembly, the bare wire needs to be processed. First, the bare wire is cut to a specified length; second, the bare wire is locally tinned (its core function is to fuse multiple thin wires to form a dense connection); finally, the heat-shrinkable sleeve is provided on the bare wire and heated and shrunk to be fixed.

[0004] In the prior art, each wire needs to be manually cut, tinned and sleeved in three processes, which is tedious, repetitive, labor-intensive, low in production efficiency, and prone to errors in manual cutting length and sleeve positioning, resulting in poor quality stability. SUMMARY

[0005] The present application aims to provide an automatic wire cutting, tinning and sleeve equipment that can replace manual cutting, tinning and sleeving in three processes, reduce labor consumption, improve production efficiency, and effectively improve the accuracy of cutting and sleeve positioning, reduce subsequent heat-shrinkage position errors, and improve quality stability.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present application is: an automatic wire cutting, tinning and sleeve equipment, comprising a rack, a bare wire supply mechanism is arranged on one side of the rack, and a sleeve supply mechanism is arranged on the other side, a bare wire moving mechanism is arranged between the bare wire supply mechanism and the sleeve supply mechanism, the bare wire supply mechanism comprises a fixed jaw and a wire cutting assembly, a tinning mechanism is arranged on the side of the wire cutting assembly away from the fixed jaw, the tinning mechanism contacts the bare wire through lifting to tin it, the sleeve supply mechanism comprises a sleeve jaw that can move in the opposite direction of the movement direction of the bare wire, the sleeve jaw holds the sleeve opening towards the bare wire, and the axis of the bare wire passes through the sleeve, a hot air blower is arranged on the rack and can lift and lower, and the air outlet end of the hot air blower is located above the sleeve movement path.

[0007] The further improved scheme of the present application is that the bare wire moving mechanism comprises a fixed length gripper and a moving gripper group arranged in the direction of the bare wire conveying, the moving gripper group is arranged below the fixed length gripper and comprises two moving grippers arranged at intervals, and after the fixed length gripper pulls out the bare wire of the fixed length, the moving gripper group clamps the bare wire from the side of the fixed length gripper close to the fixed gripper.

[0008] The further improved scheme of the present application is that the sleeve gripper is provided with a telescopic gripper close to the side of the fixed gripper and driven by a telescopic rod to extend and retract, and the telescopic direction of the telescopic rod is perpendicular to the moving direction of the bare wire on the water surface.

[0009] The further improved scheme of the present application is that the tinning mechanism comprises an upper heating head and a lower supporting head, the upper heating head and the lower supporting head are oppositely arranged above and below the bare wire conveying path and are driven by telescopic rods to perform lifting movement, one side of the upper heating head is provided with a tin wire feeding assembly, and the tin wire output by the tin wire feeding assembly is below the heating surface of the upper heating head.

[0010] The further improved scheme of the present application is that the upper heating head is fixed on the plate surface of a vertical plate, the tin wire feeding assembly comprises an angle adjusting member arranged on the vertical plate and located at one side of the upper heating head, an adjusting end of the angle adjusting member is provided with a guide pipe, and the outlet of the guide pipe faces the heating surface below the upper heating head.

[0011] The further improved scheme of the present application is that the sleeve feeding mechanism further comprises a sleeve conveying assembly, a sleeve cutting assembly is arranged between the sleeve conveying assembly and the sleeve gripper, the sleeve cutting assembly comprises a fixed cutter and a movable cutter located above the fixed cutter, and the movable cutter is driven by a power source to perform lifting cutting.

[0012] The further improved scheme of the present application is that the wire cutting assembly comprises a finger clamping air cylinder, two cutters are oppositely arranged on two clamping fingers of the finger clamping air cylinder, a cutting gap is formed between the two cutters, and the moving path of the bare wire passes through the cutting gap.

[0013] The further improved scheme of the present application is that a wire collecting box is arranged below the telescopic gripper in the retracted position.

[0014] The further improved scheme of the present application is that the air outlet end of the hot air machine is provided with a sealed air cover, the sealed air cover is provided with an air guide opening penetrating along the length direction of the sleeve towards the bottom surface of the sleeve to be heated, and the width of the air guide opening is greater than the width of the sleeve.

[0015] The further improved scheme of the present application is that the fixed length gripper, the moving gripper and the telescopic gripper are all rotary open-close grippers.

[0016] The present application has the advantages that: The present application can replace manual operation to complete the three processes of cutting, tinning and sleeving, and reduce labor consumption by setting the bare wire supply mechanism, sleeve supply mechanism, bare wire moving mechanism, automatic cutting assembly, lifting tinning mechanism and hot air machine. The fixed clamping jaw, cutting assembly and fixed length clamping jaw cooperate to complete accurate cutting, effectively reducing cutting error. The sleeve clamping jaw clamps the sleeve and sets it on the bare wire, and the hot air machine is lifted for positioning and heating, preliminarily fixing the sleeve to ensure the accuracy of the position of the sleeve on the bare wire and avoid errors in the subsequent heat shrink position.

[0017] The present application realizes segmented relay conveying by cooperating the fixed length clamping jaw with the moving clamping jaw group. When the fixed length clamping jaw pulls out the bare wire, the moving clamping jaw group performs secondary clamping. The fixed length clamping jaw ensures the accuracy of the cutting length. When the fixed length clamping jaw releases the bare wire, the moving clamping jaw group still maintains clamping. The two interval arranged moving clamping jaws reduce the bare wire overhanging section, improve transmission stability, and compared with pulling the bare wire to the sleeve only by the fixed length clamping jaw, the relay of the moving clamping jaw group can release the fixed length clamping jaw, expose one end of the bare wire, reduce the interference between the clamping jaw and the sleeve, and facilitate the subsequent alignment operation of sleeving.

[0018] The present application clamps the cut sleeve section by the sleeve clamping jaw, moves the sleeve clamping jaw to the bare wire, and sets the sleeve section on the cut bare wire end. A small section is set first. At this time, the bare wire is stably supported by the sleeve section and the telescopic clamping jaw. Two movements can release the bare wire to avoid interfering with the sleeve clamping jaw movement, so as to facilitate the sleeve clamping jaw to continue to extend to make the sleeve section completely set on the bare wire section.

[0019] The sleeve cutting assembly of the present application is arranged between the sleeve conveying assembly and the sleeve clamping jaw, improving the continuity of sleeve length cutting and supply. The movable cutter lifting cutting and fixed cutter cooperate to ensure the consistency of the length of each sleeve. After cutting, the sleeve clamping jaw directly clamps and sleeves, reducing the secondary positioning time of the sleeve and improving the continuity.

[0020] In the present application, the upper heating head and the lower supporting head are oppositely arranged. The upper heating head melts the tin wire, and the lower supporting head lifts the bare wire, so that the molten tin wraps the corresponding section of the bare wire above the upper heating head and the lower supporting head, ensuring that the tin liquid covers the multiple metal wires of the bare wire. By adjusting the angle of the guide pipe, the tin wire conveying position and angle can be flexibly controlled, so that the tin wire is directly supplied to the lower side of the heating surface and cooperates with the heating surface of the upper heating head, ensuring that the tin wire accurately falls into the heating area.

[0021] The present application effectively utilizes the telescopic clamping jaw. When the telescopic clamping jaw is retracted, the processed wire is automatically released into the collection box, realizing automatic collection and reducing the manual sorting link. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1It is a schematic structural perspective view of the present invention.

[0023] Figure 2 It is a schematic diagram of the main structure of the present invention.

[0024] Figure 3 It is a partially enlarged schematic diagram of the fixed clamping jaw structure of the present invention.

[0025] Figure 4 It is a partially enlarged schematic diagram of the tin plating mechanism structure of the present invention.

[0026] Figure 5 This is a schematic diagram of the cooperating positions of the movable clamp and the fixed-length clamp of the present invention. (The fixed-length clamp only shows the clamp fingers in the figure) Figure 6 It is a partially enlarged schematic diagram of the sleeve supply mechanism structure of the present invention.

[0027] Figure 7 This is a schematic diagram of the matching positions of the movable clamping jaw and the casing clamping jaw of the present invention.

[0028] In the figure, 1-frame, 2-bare wire supply mechanism, 3-sleeve supply mechanism, 4-fixed clamp, 5-sleeve clamp, 6-hot air blower, 7-fixed length clamp, 8-movable clamp, 9-upper heating head, 10-lower supporting head, 11-tin wire feeding assembly, 12-vertical plate, 13-angle adjustment member, 14-guide tube, 15-sleeve conveying assembly, 16-fixed cutter, 17-movable cutter, 18-power source, 19-finger clamping cylinder, 20-cutter, 21-sealed air hood, 22-air guide port, 23-telescopic clamp, 24-first mounting frame, 25-second mounting frame, 26-bare wire, 27-sleeve. DETAILED DESCRIPTION

[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 tinning sleeve equipment includes a frame 1, one side of the frame 1 (i.e. Figure 2 The left side of the figure is provided with a bare wire supply mechanism 2, and the other side (i.e. Figure 2 The right side of the figure is provided with a sleeve supply mechanism 3, 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 clamping jaw 4 and a wire cutting assembly, and a tinning mechanism is provided on the side of the wire cutting assembly away from the fixed clamping jaw 4. The tinning mechanism contacts the bare wire by lifting and tinning it, and the sleeve supply mechanism 3 includes a movable member that can move along the direction of movement of the bare wire (i.e. Figure 2 Move in the opposite direction (i.e. Figure 2The sleeve clamping jaw 5 is arranged on the rack 1 to move from right to left, the sleeve clamping jaw 5 clamps the sleeve pipe nozzle towards the bare wire and the axis of the bare wire passes through the sleeve pipe, the rack 1 is provided with a hot air blower 6 which is arranged above the sleeve pipe moving path.

[0031] The bare wire moving mechanism comprises a fixed length clamping jaw 7 and a moving clamping jaw group which are arranged to move along the bare wire conveying direction, the moving clamping jaw group is arranged below the fixed length clamping jaw 7 and comprises two spaced moving clamping jaws 8. The fixed length clamping jaw 7 is initially arranged close to the fixed clamping jaw 4, after pulling out the fixed length bare wire, the moving clamping jaw group moves along the guide rail on the rack 1 to clamp the segment of the bare wire from the side close to the fixed length clamping jaw 7 of the fixed clamping jaw 4, that is, the left side of the fixed length clamping jaw 7. Figure 2

[0032] The fixed length clamping jaw 7 and the moving clamping jaw 8 are horizontally moved on the rack 1 by respective driving devices such as motor driven screw slides or cylinder driven slide rail mechanisms. The clamping part of the fixed length clamping jaw 7 is arranged downwards, the clamping part of the moving clamping jaw 8 is arranged upwards, and the two are vertically staggered to avoid interference.

[0033] After the fixed length clamping jaw 7 pulls out the fixed length bare wire, the moving clamping jaw group clamps the segment of the bare wire from the side close to the fixed length clamping jaw 7 of the fixed clamping jaw 4. The fixed length clamping jaw 7 is arranged downwards, and the moving clamping jaw 8 is arranged upwards.

[0034] The side close to the fixed clamping jaw 4 of the sleeve clamping jaw 5 is provided with a telescopic clamping jaw 23 which is driven to extend and retract by a telescopic rod, the telescopic direction of the telescopic rod is perpendicular to the moving direction of the bare wire on the water surface. The telescopic clamping jaw 23 is used to clamp and support the bare wire before penetrating the sleeve pipe, and release the wire after completion.

[0035] Preferably, the rack 1 comprises a table top, the table top is provided with a first mounting frame 24 and a second mounting frame 25 which are arranged in parallel, the conveying path of the bare wire is located between the first mounting frame 24 and the second mounting frame 25, the fixed clamping jaw 4 and the cutting assembly, the fixed length clamping jaw 7, the tinning mechanism and the hot air blower 6 are arranged on the first mounting frame, the telescopic rod of the telescopic clamping jaw 23 and the sleeve clamping jaw 5 are arranged on the second mounting frame, and the sleeve clamping jaw 5 is horizontally moved on the second mounting frame 25 by a driving device such as a motor driven screw slide or a cylinder driven slide rail mechanism.

[0036] ​The tinning mechanism comprises an upper heating head 9 and a lower supporting head 10, which are oppositely arranged above and below the bare wire conveying path and are driven to move up and down by independent telescopic rods respectively. One side of the upper heating head 9 is provided with a tin wire feeding assembly 11, which is a conventional tin wire feeding assembly for feeding tin wire in the prior art. The tin wire continuously or on-demand output by the tin wire feeding assembly 11 is located below the heating surface of the upper heating head 9 so as to melt and drop or contact the bare wire.

[0037] In the wire processing technology involved in the present application, the bare wire conductor is twisted by a plurality of fine metal wires, and there are inevitably small gaps between the fine wires inside, forming potential capillary penetration channels of fluid (such as moisture or corrosive gas). In order to realize high-reliability sealing (especially air-tightness or water resistance) of the wire connection part, the bare wire conductor is usually subjected to partial tinning treatment in the conventional prior art. The tinning treatment is not applied to the whole length of the bare wire conductor, but is controlled in a specific section. The core principle is that the molten solder penetrates and fills all the gaps between the plurality of fine wires in the section during the tinning process, so that the section of the conductor is transformed from a plurality of discrete structures to a dense metal entity. This small section of dense "tinning plug" effectively blocks the penetration path of moisture or gas along the capillary channel inside the conductor to the inside of the connector or the depth of the wire. Subsequently, after the external sleeve (preferably a double-walled heat-shrinkable sleeve containing glue) is inserted and heat-shrunk, the sleeve and the outer surface of the conductor and the adjacent parts (such as a waterproof plug) form a tight external sealing layer. The internal "tinning plug" and the external heat-shrinkable sealing layer work together to form a complete double-sealing barrier, thereby realizing reliable internal and external isolation with the lowest process complexity and material cost. Therefore, only a small section of tin needs to be plated to meet the overall air-tightness requirement, avoiding the additional cost, weight increase and flexibility reduction caused by overall tinning.

[0038] The temperature of the heating surface of the upper heating head 9 can be controlled at 250-350°C to melt the tin wire. The lower supporting head 10 can be made of a high-temperature-resistant and heat-conductive material (such as copper alloy). In order to avoid the adhesion of molten solder on the surface of the supporting head, the working surface of the lower supporting head 10 is preferably subjected to anti-soldering treatment, such as nickel plating or spraying of a high-temperature-resistant non-stick coating. Preferably, the upper heating head 9 and the lower supporting head 10 are provided with arc surfaces matched with the bare wire, which can effectively reduce the adhesion of solder after the aforementioned treatment.

[0039] The upper heating head 9 is fixed on the plate surface of the vertical plate 12, and the tin wire feeding assembly includes an angle adjusting member 13 arranged on the vertical plate 12 and located on one side of the upper heating head 9. The adjusting end of the angle adjusting member 13 is provided with a guide pipe 14, and the outlet of the guide pipe 14 is directed towards the lower side of the heating surface of the upper heating head 9. The angle adjusting member 13 is a conventional component capable of adjusting the angle of the guide pipe 14 in the prior art. Preferably, it includes a fixing seat arranged on the plate surface of the vertical plate 12, a adjusting arm is connected to the fixing seat by bolts, the adjusting arm is locked on the fixing seat by bolts and can be adjusted by loosening the bolts, a secondary adjusting seat is also connected to the adjusting arm by bolts, the secondary adjusting seat is locked on the adjusting arm by bolts and can be adjusted by loosening the corresponding bolts, and the secondary adjusting seat is provided with a guide hole, and the guide pipe 14 is fixedly connected in the guide hole.

[0040] Preferably, vertical telescopic rod mounting plates are arranged above and below the bare wire conveying path on the rack 1. Each telescopic rod (such as a pneumatic cylinder or an electric push rod) is vertically arranged on the corresponding telescopic rod mounting plate and drives the corresponding component to rise and fall. The vertical plate 12 is slidably connected to the plate surface of the telescopic rod mounting plate above by a slide rail and the bottom thereof is connected to the rod end of the telescopic rod above. The lower telescopic rod mounting plate is slidably connected to a lower vertical plate by a slide rail, the lower vertical plate is connected to the rod end of the telescopic rod below, and the lower supporting head 10 is arranged on the plate surface of the lower vertical plate. By the telescopic function of the telescopic rod, the lifting height and contact pressure of the upper heating head 9 and the lower supporting head 10 can be accurately controlled.

[0041] The sleeve feeding mechanism 3 further includes a sleeve conveying assembly 15, and a sleeve cutting assembly is arranged between the sleeve conveying assembly 15 and the sleeve clamping jaw 5. The sleeve cutting assembly includes a fixed cutter 16 and a movable cutter 17 located above the fixed cutter 16, and the movable cutter 17 is driven to rise and fall by a power source 18 (such as a pneumatic cylinder) for cutting. Preferably, the fixed cutter 16 and the movable cutter 17 are each provided with a V-shaped cutout matched with the sleeve.

[0042] In order to provide stable support, a first mounting plate is horizontally fixed on one side of the rack 1, and the fixed clamping jaw 4 and the cutting assembly are arranged on the first mounting plate. A second mounting plate is horizontally fixed on the other side of the rack 1, and the sleeve cutting assembly and the sleeve conveying assembly 15 are arranged on the second mounting plate. The sleeve feeding mechanism 3 further includes a sleeve unwinding roller (which can be equipped with a tension controller), and the sleeve is pulled out from the sleeve unwinding roller by the sleeve conveying assembly 15 and is discharged to a predetermined cutting position.

[0043] The sleeve conveying assembly 15 is a conventional pinch roller conveyor, the distance between the two pinch rollers is slightly smaller than the outer diameter of the sleeve (for example, 0.1-0.5mm smaller), which facilitates the conveying of the sleeve and provides appropriate friction. The sleeve conveying assembly 15 is provided with guide members (for example, guide sleeves or guide blocks with guide holes matching the outer diameter of the sleeve) at the front and rear, which facilitate the guiding of the sleeve. The guide channels of the two guide members are coaxially arranged and cooperate with the clamping position of the sleeve clamping jaw 5 and the subsequent sleeving path. When the sleeve is sleeved on the bare wire, the tinned part of the bare wire is covered in the sleeve.

[0044] The wire cutting assembly includes a finger clamp cylinder 19, and the two clamping fingers of the finger clamp cylinder 19 are oppositely provided with cutting knives 20. The range between the two cutting knives 20 forms a cutting opening, and the movement path of the bare wire passes through the cutting opening. The cutting edges of the two cutting knives 20 are staggered to avoid direct collision during cutting.

[0045] A wire collecting box (not shown in the figure) is arranged below the retracted position of the telescopic clamping jaw 23 to cooperate with the telescopic clamping jaw 23. The processed wire directly falls into the box for collection after the telescopic clamping jaw 23 is loosened.

[0046] The outlet end of the hot air blower 6 is provided with a sealing air cover 21, and the sealing air cover 21 is provided with an air guide opening 22 along the length direction of the sleeve towards the bottom surface of the sleeve to be heated. The width of the air guide opening 22 is greater than the width of the sleeve, and is preferably 1.5-3 times the outer diameter of the sleeve, so as to ensure that the hot air can uniformly cover the circumferential area of the sleeve that needs to be pre-fixed. The length of the air guide opening 22 is slightly greater than the local length of the sleeve that needs to be pre-heated and shrunk. The hot air blower 6 is driven to lift by a telescopic rod (for example, a pneumatic cylinder or an electric cylinder).

[0047] The automatic wire cutting and tinned sleeve equipment of the present application preliminarily shrinks the sleeve sleeved on the bare wire by the hot air blower 6, preliminarily fixes the position of the sleeve on the bare wire (especially the tinned section), effectively prevents the sleeve from slipping or shifting in the subsequent transfer process, and significantly improves the accuracy, consistency and stability of the sleeve positioning compared with manual operation, thereby providing a reliable basis for the subsequent process. It should be particularly noted that the hot air blower here only realizes the pre-positioning of the sleeve, and the final overall heat shrinkage sealing (i.e., the sleeve uniformly shrinks along the whole length to form a sealing layer) needs to be completed by an independent subsequent process, and the present application does not involve overall heat shrinkage.

[0048] In the prior art, the overall heat shrinkage is usually realized by a special device, for example, the wire assembly with the preliminarily fixed sleeve is sent into a hot air tunnel or an oven with specific temperature and time parameters, and the sleeve is uniformly shrunk along the whole length by uniform hot air to tightly wrap the bare wire and adjacent components, thereby forming the final sealing. The core of the equipment of the present application is to automatically complete the wire cutting, tinning, sleeve sleeving and preliminary fixing links, thereby ensuring the accurate and consistent position of the sleeve and providing qualified semi-finished products for the overall heat shrinkage process.

[0049] The fixed length clamping jaw 7, the moving clamping jaw 8 and the telescopic clamping jaw 23 are all rotary open-close clamping jaws. For example, the clamping jaws driven by rotary air cylinders, which are driven by gas or electricity, realize open-close action by rotation.

[0050] The sleeve clamping jaw 5 is a clamping jaw with long clamping length to adapt to the length of the sleeve section. Preferably, its structure comprises upper and lower clamping parts arranged oppositely, which are driven by a driving device (such as an air cylinder or a motor) to perform open-close movement (i.e. folding and separating upwards and downwards). On the lower surface of the upper clamping part and the upper surface of the lower clamping part, a plurality of parallel vertical clamping plates are fixed alternately. V-shaped clamping openings are formed on all the clamping plates, and the V-shaped clamping openings of the clamping plates of the upper clamping part and the clamping plates of the lower clamping part are matched with each other. When the clamping jaw is folded, these alternately matched V-shaped clamping openings collectively form stable and uniform clamping of the full length of the sleeve section, preventing it from being skewed or slipping during movement. When waiting for the sleeve to be transported by the sleeve transporting assembly 15, the sleeve clamping jaw 5 is kept in an open state (the upper and lower clamping parts are separated); after the sleeve is transported to the predetermined cutting position and cut by the cutting assembly to form a sleeve section, the sleeve clamping jaw 5 is immediately folded to clamp the sleeve section by the V-shaped clamping openings thereof.

[0051] The working principle of the automatic wire cutting tinned sleeve equipment provided by the application is as follows: When the device is in operation, the fixed jaw of the bare wire feeding mechanism fixes the wire, the fixed length jaw clamps the end of the bare wire, then the fixed jaw is released, the fixed length jaw pulls out the bare wire to a predetermined length, then the fixed jaw is clamped again to fix the wire, the tin wire feeding assembly of the tinning mechanism feeds the tin wire to the lower side of the heating surface of the upper heating head, the upper heating head and the lower supporting head are lifted and lowered to cooperate with the bare wire, the tin wire is melted, the molten tin liquid wraps the multiple metal wires at the corresponding position on the bare wire under the action of gravity, capillary action and the lifting of the lower supporting head 10, and the partial tinning is completed. After the tinning is completed, the upper heating head 9 and the lower supporting head 10 are lifted and lowered respectively to reset and separate from the bare wire. The tin wire feeding is stopped. The moving jaw group moves to the lower side of the bare wire to clamp it, the finger cylinder 19 of the wire cutting assembly drives the two clamping fingers with the cutter 20 to close, and the bare wire is cut between the fixed jaw 4 and the moving jaw group. At this time, a segment of the bare wire segment (one end is clamped by the fixed length jaw 7, and the middle segment is clamped by the moving jaw group) that has completed tinning is separated. Then the fixed jaw and the fixed length jaw are released, the moving jaw moves the cut bare wire segment to the sleeve station, and the telescopic jaw is extended to clamp and support the bare wire. The sleeve feeding mechanism feeds through the sleeve feeding assembly, supports the incoming sleeve through the sleeve jaw, cuts the sleeve through the sleeve cutting assembly, moves the clamped cut sleeve segment towards the bare wire, and initially sleeves a small segment (such as 2-5 mm) on the end of the bare wire, at this time, the bare wire is supported by the sleeve segment and the telescopic jaw 23. The moving jaw group releases the bare wire and resets to avoid blocking the subsequent action of the sleeve jaw 5. The sleeve jaw continues to move to sleeve the entire sleeve segment on the bare wire. The hot air machine 6 is driven by the lifting mechanism to lower, so that the air guide opening 22 of the sealing air baffle 21 is aligned with and close to the local position (usually close to one end of the sleeve) of the sleeve segment that needs to be heat-shrunk fixed. The hot air machine 6 blows hot air through the air guide opening 22 to heat and shrink the sleeve locally, initially fixes the sleeve on the bare wire to facilitate the heat shrinkage of subsequent other links, then the telescopic jaw is retracted, opened, and automatically releases the processed wire to the collection box for automatic collection, realizes the automatic continuous operation of cutting, tinning and sleeving.

[0052] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Any equivalent structure or equivalent process conversion made by using the content of the present application specification and drawings, or directly or indirectly applied to other related technical fields, is also included in the patent protection scope of the present application.

Claims

1. An automatic wire cutting and tinning sleeve equipment, characterized by: The invention comprises a frame (1), wherein a bare wire supply mechanism (2) is provided on one side of the frame (1), and a sleeve supply mechanism (3) is provided 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) comprises a fixed clamping jaw (4) and a wire cutting assembly; a tinning mechanism is provided on a side of the wire cutting assembly away from the fixed clamping jaw (4); the tinning mechanism tins the bare wire by contacting the bare wire by lifting; the sleeve supply mechanism (3) comprises a sleeve clamping jaw (5) which can move in the opposite direction of the moving direction of the bare wire; the sleeve pipe opening clamped by the sleeve clamping jaw (5) faces the bare wire and the axis of the bare wire passes through the sleeve; a hot air blower (6) is provided on the frame (1) for lifting and lowering; the air outlet end of the hot air blower (6) is located above the sleeve moving path.

2. The automatic wire cutting and tinning sleeve equipment according to claim 1, characterized in that: The bare wire moving mechanism comprises a fixed-length clamp (7) and a movable clamp group arranged to move along the bare wire conveying direction, the movable clamp group being located below the fixed-length clamp (7) and comprising two movable clamps (8) arranged at intervals, and after the fixed-length clamp (7) pulls out a fixed length of bare wire, the movable clamp group clamps the section of bare wire from a side of the fixed-length clamp (7) close to the fixed clamp (4).

3. The automatic wire cutting and tinning sleeve equipment according to claim 2, characterized in that: A telescopic clamping jaw (23) is provided on one side of the sleeve clamping jaw (5) close to the fixed clamping jaw (4), and is driven to extend and retract by a telescopic rod. The telescopic direction of the telescopic rod is perpendicular to the moving direction of the bare wire on the water surface.

4. The automatic wire cutting and tinning sleeve equipment according to claim 1, characterized in that: The tinning mechanism comprises an upper heating head (9) and a lower supporting head (10), wherein the upper heating head (9) and the lower supporting head (10) are relatively arranged above and below the bare wire conveying path, and are both driven by a telescopic rod to perform lifting movements, and 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 tinning 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), and the tin wire feeding assembly includes an angle adjustment member (13) arranged on the vertical plate (12) and located on one side of the upper heating head (9), and the adjustment end of the angle adjustment member (13) is provided with a guide tube (14), and the outlet of the guide tube (14) is directed toward the bottom of the heating surface of the upper heating head (9).

6. The automatic wire cutting and tinning sleeve equipment according to claim 1 or 2, characterized in that: The casing supply mechanism (3) further comprises a casing conveying assembly (15), a casing cutting assembly being provided between the casing conveying assembly (15) and the casing clamping jaw (5), the casing cutting assembly comprising a fixed cutter (16) and a movable cutter (17) located above the fixed cutter (16), the movable cutter (17) being driven by a power source (18) to perform lifting and cutting.

7. The automatic wire cutting and tinning sleeve equipment according to claim 1, characterized in that: The wire cutting assembly comprises a finger clamping cylinder (19), wherein two clamping fingers of the finger clamping cylinder (19) are provided with cutters (20) facing each other, and a range between the two cutters (20) forms a cutting opening, and a moving path of the bare wire passes through the cutting opening.

8. The automatic wire cutting and tinning sleeve equipment according to claim 3, characterized in that: A wire collection box cooperating with the telescopic clamping claw (23) is provided below the retracted position of the telescopic clamping claw (23).

9. The automatic wire cutting and tinning sleeve equipment according to claim 1, characterized in that: The air outlet end of the hot air blower (6) is provided with a sealed air cover (21), and the sealed air cover (21) is provided with an air guide port (22) penetrating along the length direction of the sleeve toward the bottom surface of the sleeve to be heated, and the width of the air guide port (22) is greater than the width of the sleeve.

10. The automatic wire cutting and tinning sleeve equipment according to claim 3, characterized in that: The fixed-length clamping jaw (7), the movable clamping jaw (8) and the telescopic clamping jaw (23) are all rotating opening and closing clamping jaws.

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