Heat shrink tubing automatic feeding sleeve, cutting and heat shrinking device

Abstract

The invention discloses an automatic feeding sleeve, cutting and heat shrinking device for heat shrinkable tubes; it belongs to the technical field of auxiliary tooling for motor stator processing; its technical points include a frame, a mounting seat is arranged on the frame, a mobile platform is arranged on the mounting seat, a material tray with heat shrinkable tubes rolled up is connected on the mobile platform, and the heat shrinkable tubes in the material tray are automatically output through a feeding mechanism on the mounting seat; an automatic tube cutting mechanism and a heat shrinkable tube guiding and positioning mechanism are arranged in sequence on the mobile platform on the side of the output end of the feeding mechanism, a wire clamping mechanism for clamping external coil wires is arranged on the frame on the side of the heat shrinkable tube guiding and positioning mechanism; a hot air blowing and shrinking mechanism corresponding to the heat shrinkable tube on the heat shrinkable tube guiding and positioning mechanism is arranged on the frame above the wire clamping mechanism; the invention aims to provide an automatic feeding sleeve, cutting and heat shrinking device for heat shrinkable tubes with a compact structure, a high degree of automation and good use effect; it is used for motor stator processing.

Description

Technical Field

[0001] The invention relates to an auxiliary tooling for motor stator processing, and more specifically, to an automatic feeding sleeve, cutting and heat shrinking device for a heat shrink tube. Background Art

[0002] During the micromotor processing, it is necessary to cover the stator enameled coil wire end with a heat shrink tube at the connection point with the wire to provide insulation, flame retardancy, rust and corrosion protection. This process is currently done manually. This method has the following disadvantages: it requires a lot of manpower, takes up space, has cumbersome processes, has low production efficiency and cannot guarantee quality, which ultimately affects the efficiency of motor stator product assembly. Summary of the invention

[0003] The object of the present invention is to provide a heat shrink tube automatic feeding sleeve, cutting and heat shrinking device with compact structure, high automation and good use effect in view of the above-mentioned deficiencies in the prior art.

[0004] The technical solution of the present invention is implemented as follows: an automatic feeding, cutting and heat shrinking device for heat shrinkable tubes comprises a frame, a mounting seat is provided on the frame, a mobile platform is provided on the mounting seat, a material tray with heat shrinkable tubes rolled up is connected to the mobile platform, and the heat shrinkable tubes in the material tray are automatically output through a feeding mechanism on the mounting seat, and the conveying direction of the feeding mechanism is the same as the moving direction of the mobile platform.

[0005] An automatic tube cutting mechanism and a heat shrink tube guiding and positioning mechanism are sequentially arranged on the mobile platform on the side of the output end of the feeding mechanism. The heat shrink tube enters the heat shrink tube guiding and positioning mechanism after passing through the automatic tube cutting mechanism. A wire clamping mechanism for clamping the external coil wire is arranged on the frame on the side of the heat shrink tube guiding and positioning mechanism.

[0006] When the external coil wire is located in the wire clamping mechanism, the external coil wire is opposite to the cut heat shrink tube on the heat shrink tube guiding and positioning mechanism; a hot air blowing mechanism corresponding to the heat shrink tube on the heat shrink tube guiding and positioning mechanism is arranged on the frame above the wire clamping mechanism.

[0007] In the above-mentioned automatic feeding, cutting and heat shrinking device for heat shrinkable tubes, the mobile platform consists of a mounting plate, a linear slide rail arranged between the mounting plate and the mounting seat, and a sleeve cylinder fixed to the edge of the mounting seat and the free end of the piston rod connected to the mounting plate.

[0008] In the above-mentioned automatic feeding sleeve, cutting and heat shrinking device for heat shrinkable tubes, the feeding mechanism includes a feeding support, on which a knurled driving wheel is movably connected via a rotating shaft, and one end of the rotating shaft with the knurled driving wheel extends to the outside of the feeding support and is connected to a one-way bearing.

[0009] A column is arranged on the moving platform at the side of the one-way bearing, a push-tube cylinder is hinged on the column, and a free end of a piston rod of the push-tube cylinder is hinged to the one-way bearing.

[0010] A lower pressing plate is hinged at the upper end of the feeding support, and a driven wheel matched with a knurled driving wheel is movably connected at the bottom of the lower pressing plate. The heat shrinkable tube output from the material tray is automatically output through the cooperation of the knurled driving wheel and the driven wheel.

[0011] In the above-mentioned automatic heat shrink tube feeding sleeve, cutting and heat shrinking device, the two ends of the driven wheel support shaft are respectively connected to connecting seats, and each connecting seat is respectively fixedly connected to a pressure rod, and the free end of the pressure rod passes through the lower pressure plate and extends to the upper side of the lower pressure plate.

[0012] An adjusting spring is provided on the outer sleeve of the pressure rod between the lower pressure plate and the connecting seat, an annular groove is formed on the proximal end of the free end of the pressure rod, a limiting sleeve is provided in the annular groove, and the limiting sleeve is located on the upper end surface of the lower pressure plate. In the initial state, the pressure rod can be telescopically fixed on the lower pressure plate with the cooperation of the adjusting spring and the limiting sleeve.

[0013] In the above-mentioned automatic feeding, sleeve cutting and heat shrinking device for heat shrinkable tubes, the automatic tube cutting mechanism includes a cutter seat fixed on the mobile platform, and a cutting hole opposite to the feeding mechanism is provided on the cutter seat.

[0014] A hanging plate is fixed horizontally on the upper end of the cutter seat, a pipe cutting cylinder is arranged vertically on the hanging plate, a piston rod of the pipe cutting cylinder passes through the hanging plate and extends to the lower side of the hanging plate and is connected with a cutter matching the cutting hole.

[0015] Cutter guide blocks matched with the cutter are arranged on the cutter seats on the left and right sides of the cutter, and the cutter is driven by the pipe cutting cylinder to move up and down along the cutter guide blocks.

[0016] In the above-mentioned automatic feeding sleeve, cutting and heat shrinking device for heat shrinkable tubes, the heat shrinkable tube guiding and positioning mechanism is composed of a positioning cylinder fixed on the side of the cutter seat, a first connecting block connected to the free end of the positioning cylinder piston rod, and a guide tube arranged on the first connecting block in the horizontal direction and opposite to the cutting hole; the end of the guide tube opposite to the cutting hole is trumpet-shaped, and the heat shrinkable tube is transported by the feeding mechanism through the cutting hole and enters the guide tube.

[0017] In the above-mentioned automatic feeding sleeve, cutting and heat shrinking device for heat shrinkable tubes, the wire clamping mechanism is composed of a clamping support arranged on a frame below the heat shrinkable tube guiding and positioning mechanism, a wire positioning cylinder fixed on the clamping support in the vertical direction, a V-shaped positioning block fixed to the free end of the piston rod of the wire positioning cylinder and opposite to the heat shrinkable tube guiding and positioning mechanism, a wire pressing cylinder arranged on the frame above the heat shrinkable tube guiding and positioning mechanism, and a wire pressing strip fixed to the free end of the piston rod of the wire pressing cylinder and cooperating with the V-shaped positioning block to press the wire; when the V-shaped positioning block and the wire pressing strip cooperate to clamp the wire of the motor stator coil, the wire is opposite to the heat shrinkable tube on the heat shrinkable tube guiding and positioning mechanism.

[0018] In the above-mentioned automatic feeding sleeve, cutting and heat shrinking device for heat shrinkable tube, the V-shaped positioning block is composed of a horizontal connecting part fixedly connected to the free end of the wire positioning cylinder piston rod by a screw, a vertical positioning part integrally formed at the free end of the horizontal connecting part, two positioning parts integrally formed at the upper end of the vertical positioning part and arranged at intervals, and a V-shaped notch arranged at the upper end of the positioning part; a guide groove adapted to the wire strip is formed between the two positioning parts.

[0019] A pressing block matched with the V-shaped notch is formed on the conductor pressing strip. When the conductor pressing strip enters the guide groove, the pressing block enters the V-shaped notch at the same time.

[0020] In the above-mentioned automatic feeding sleeve, cutting and heat shrinking device for heat shrinkable tubes, the hot air blowing mechanism is composed of a slider cylinder fixed on a frame, a second connecting block connected to the free end of the slider cylinder piston rod, a hot air gun clamping block connected to the second connecting block, and a hot air gun clamped and fixed on the hot air gun clamping block; the hot air gun is opposite to the heat shrinkable tube on the heat shrinkable tube guiding and positioning mechanism, and the extension and retraction direction of the slider cylinder is parallel to the guiding direction of the heat shrinkable tube guiding and positioning mechanism.

[0021] After the present invention adopts the above structure, the material tray is installed on the mobile platform and the feeding mechanism is set to automatically output the material, and then the heat shrink tube is cut to a fixed length by the automatic tube cutting mechanism. The cut heat shrink tube is guided by the guide positioning mechanism to be opposite to the coil wire on the external stator carrier, and the coil wire is fixed under the clamping of the wire clamping mechanism. Then the heat shrink tube is driven by the mobile platform to be inserted into the end of the coil wire, and finally the hot air blowing mechanism blows hot air to the heat shrink tube to complete the heat shrink wrapping. By adopting the device of the present invention, the processing of the entire heat shrink tube is completed freely, which not only has high work efficiency but also uniform quality. While saving a lot of manpower, it significantly improves the quality and market competitiveness of the final finished motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described in detail below in conjunction with the embodiments in the accompanying drawings, but this does not constitute any limitation to the present invention.

[0023] Figure 1 It is a schematic diagram of the structure of the present invention;

[0024] Figure 2 It is a structural schematic diagram of the mobile platform part of the present invention;

[0025] Figure 3 It is a structural schematic diagram of the wire clamping mechanism and the hot air shrinking mechanism of the present invention;

[0026] Figure 4 yes Figure 3 A local enlarged schematic diagram of the middle A;

[0027] Figure 5 It is a structural schematic diagram of the feeding mechanism of the present invention;

[0028] Figure 6 It is a schematic diagram of the assembly structure of the automatic tube cutting mechanism and the heat shrink tube guiding and positioning mechanism of the present invention.

[0029] In the figure: 1, frame; 1a, mounting seat; 2, moving platform; 2a, mounting plate; 2b, linear slide rail; 2c, sleeve cylinder; 3, material tray; 4, feeding mechanism; 4a, feeding support; 4b, knurled driving wheel; 4c, one-way bearing; 4d, column; 4e, tube push cylinder; 4f, lower pressure plate; 4g, driven wheel; 4h, connecting seat; 4i, pressure rod; 4j, adjustment spring; 4k, limit sleeve; 5, automatic tube cutting mechanism; 5a, cutter seat; 5b, cutting hole; 5c, hanging plate; 5d, tube cutting cylinder; 5e, cutter; 5f, Cutter guide block; 6, heat shrink tube guide positioning mechanism; 6a, positioning cylinder; 6b, first connecting block; 6c, guide tube; 7, wire clamping mechanism; 7a, clamping support; 7b, wire positioning cylinder; 7c, V-shaped positioning block; 7d, wire clamping cylinder; 7e, wire pressure strip; 7f, horizontal connecting part; 7g, vertical positioning part; 7h, positioning part; 7i, V-shaped notch; 7j, guide groove; 7k, clamping block; 8, hot air shrinking mechanism; 8a, slider cylinder; 8b, second connecting block; 8c, hot air gun clamping block; 8d, hot air gun. DETAILED DESCRIPTION

[0030] See also Figures 1 to 6 As shown, an automatic feeding, cutting and heat shrinking device for heat shrinkable tubes of the present invention comprises a frame 1, a mounting seat 1a is provided on the frame 1, a mobile platform 2 is provided on the mounting seat 1a, a material tray 3 with heat shrinkable tubes rolled up is connected to the mobile platform 2, the heat shrinkable tubes in the material tray 3 are automatically output through a feeding mechanism 4 on the mounting seat 1a, and the conveying direction of the feeding mechanism 4 is the same as the moving direction of the mobile platform 2.

[0031] An automatic tube cutting mechanism 5 and a heat shrink tube guiding and positioning mechanism 6 are sequentially arranged on the mobile platform 2 on the side of the output end of the feeding mechanism 4. The heat shrink tube enters the heat shrink tube guiding and positioning mechanism 6 after passing through the automatic tube cutting mechanism 5. A wire clamping mechanism 7 for clamping the external coil wire is arranged on the frame 1 on the side of the heat shrink tube guiding and positioning mechanism 6.

[0032] When the external coil wire is located in the wire clamping mechanism 7, the external coil wire is opposite to the cut heat shrink tube on the heat shrink tube guide positioning mechanism 6; a hot air blowing mechanism 8 corresponding to the heat shrink tube on the heat shrink tube guide positioning mechanism 6 is arranged on the frame 1 above the wire clamping mechanism 7. With the above structure, the heat shrink tube can be automatically output quickly, accurately and stably with short stroke and high efficiency.

[0033] The mobile platform, the feeding mechanism, the automatic tube cutting mechanism 5, the heat shrink tube guiding and positioning mechanism 6, the wire clamping mechanism 7 and the hot air shrinking mechanism 8 are respectively connected to the control electric box 9 circuit, and a touch screen controller 10 is arranged on the control electric box.

[0034] Preferably, the mobile platform 2 is composed of a mounting plate 2a, a linear slide rail 2b arranged between the mounting plate 2a and the mounting seat 1a, and a sleeve cylinder 2c fixed to the edge of the mounting seat 1a and the free end of the piston rod connected to the mounting plate 2a. The material tray, the feeding mechanism, the automatic tube cutting mechanism 5 and the heat shrink tube guide positioning mechanism 6 are all arranged on the mounting plate. In this way, the overall movement of the automatic feeding and cutting parts can be realized, which is convenient for subsequent sleeves.

[0035] Preferably, the feeding mechanism 4 includes a feeding support 4a, on which a knurled driving wheel 4b is movably connected via a rotating shaft, and one end of the rotating shaft of the knurled driving wheel 4b extends to the outside of the feeding support 4a and is connected to a one-way bearing 4c.

[0036] A column 4d is provided on the mobile platform 2 on the side of the one-way bearing 4c, and a tube-pushing cylinder 4e is hinged on the column 4d, and the free end of the piston rod of the tube-pushing cylinder 4e is hinged to the one-way bearing 4c. The one-way bearing cooperates with the tube-pushing cylinder to realize the automatic output of the heat shrink tube and avoid the movement of the heat shrink tube caused by the backward movement of the knurled driving wheel, thereby affecting the accuracy.

[0037] A lower pressure plate 4f is hinged at the upper end of the feeding support 4a, and a driven wheel 4g cooperating with the knurled driving wheel 4b is movably connected to the bottom of the lower pressure plate 4f. The heat shrinkable tube output from the material tray 3 is automatically output through the cooperation of the knurled driving wheel 4b and the driven wheel 4g.

[0038] See also Figure 5As shown, further preferably, both ends of the driven wheel 4g support shaft are respectively connected to connecting seats 4h, and each connecting seat 4h is respectively fixedly connected to a pressure rod 4i, and the free end of the pressure rod 4i passes through the lower pressure plate 4f and extends to the upper side of the lower pressure plate 4f.

[0039] An adjusting spring 4j is sleeved on the outer periphery of the pressure rod 4i between the lower pressure plate 4f and the connecting seat 4h, an annular groove is formed at the proximal end of the free end of the pressure rod 4i, and a limiting sleeve 4k is sleeved in the annular groove. The limiting sleeve 4k is located on the upper end surface of the lower pressure plate 4f. In the initial state, the pressure rod 4i can be telescopically fixed on the lower pressure plate 4f with the cooperation of the adjusting spring 4j and the limiting sleeve 4k. With this structure, the driven wheel combined with the lower pressure plate can apply pressure to the heat shrink tube to ensure that the heat shrink tube will not slip during the transportation process. At the same time, by adjusting the spring and the pressure rod, an elastic connection is formed between the driven wheel and the lower pressure plate, which can not only adapt to heat shrink tubes of different diameters, but also keep the driven wheel in contact with the heat shrink tube at all times when the lower pressure plate swings slightly, so as to prevent the heat shrink tube from slipping during feeding.

[0040] See also Figure 6 As shown, in this embodiment, the automatic pipe cutting mechanism 5 includes a cutter seat 5 a fixed on the mobile platform 2 , and a cutting hole 5 b opposite to the feeding mechanism 4 is provided on the cutter seat 5 a .

[0041] A hanging plate 5c is fixed horizontally on the upper end of the cutter seat 5a, and a pipe cutting cylinder 5d is arranged vertically on the hanging plate 5c. The piston rod of the pipe cutting cylinder 5d passes through the hanging plate 5c and extends to the lower side of the hanging plate 5c and is connected to a cutter 5e that matches the cutting hole 5b.

[0042] Cutter guide blocks 5f are provided on the cutter seats 5a on the left and right sides of the cutter 5e, and the cutter 5e is driven by the tube cutting cylinder 5d to move up and down along the cutter guide blocks 5f. The cutter blade moves up and down close to the cutter seat, thereby cooperating with the cutting hole to automatically cut off the heat shrink tube.

[0043] Correspondingly, the heat shrink tube guiding and positioning mechanism 6 is composed of a positioning cylinder 6a fixed on the side of the cutter seat 5a, a first connecting block 6b connected to the free end of the piston rod of the positioning cylinder 6a, and a guide tube 6c arranged on the first connecting block 6b in the horizontal direction and opposite to the cutting hole 5b; the end of the guide tube 6c opposite to the cutting hole 5b is horn-shaped, which can facilitate the heat shrink tube to enter the guide tube. The heat shrink tube is transported by the feeding mechanism through the cutting hole and enters the guide tube 6c. Then it is cut according to the required length.

[0044] Preferably, in this embodiment, the wire clamping mechanism 7 is composed of a clamping support 7a arranged on the frame 1 below the heat shrink tube guiding and positioning mechanism 6, a wire positioning cylinder 7b fixed on the clamping support 7a in the vertical direction, a V-shaped positioning block 7c fixed to the free end of the piston rod of the wire positioning cylinder 7b and opposite to the heat shrink tube guiding and positioning mechanism 6, a wire pressing cylinder 7d arranged on the frame 1 above the heat shrink tube guiding and positioning mechanism 6, and a wire pressing strip 7e fixed to the free end of the piston rod of the wire pressing cylinder 7d and cooperating with the V-shaped positioning block 7c to press the wire; when the V-shaped positioning block 7c and the wire pressing strip 7e cooperate to clamp the wire of the motor stator coil, the wire is opposite to the heat shrink tube on the heat shrink tube guiding and positioning mechanism 6.

[0045] Further preferably, to ensure the stability of clamping, the V-shaped positioning block 7c is composed of a horizontal connecting part 7f fixedly connected to the free end of the piston rod of the wire positioning cylinder 7b by screws, a vertical positioning part 7g integrally formed at the free end of the horizontal connecting part 7f, two positioning parts 7h integrally formed at the upper end of the vertical positioning part 7g and arranged at intervals, and a V-shaped notch 7i arranged at the upper end of the positioning part 7h; a guide groove 7j adapted to the wire strip 7e is formed between the two positioning parts 7h.

[0046] A pressing block 7k is formed on the wire pressing strip 7e to match the V-shaped notch 7i. When the wire pressing strip 7e enters the guide groove 7j, the pressing block 7k enters the V-shaped notch 7i at the same time. Two identical V-shaped notches can ensure that the clamped wire is in a horizontal state and the position when fixed is unique, which facilitates the automatic and accurate sleeve connection of the heat shrink tube.

[0047] Preferably, the hot air blowing mechanism 8 is composed of a slider cylinder 8a fixed on the frame 1, a second connecting block 8b connected to the free end of the piston rod of the slider cylinder 8a, a hot air gun clamping block 8c connected to the second connecting block 8b, and a hot air gun 8d clamped and fixed on the hot air gun clamping block 8c; the hot air gun 8d is opposite to the heat shrinkable tube on the heat shrinkable tube guiding and positioning mechanism 6 and the extension and retraction direction of the slider cylinder 8a is parallel to the guiding direction of the heat shrinkable tube guiding and positioning mechanism 6.

[0048] The setting of the heat shrink tube guide and positioning mechanism effectively ensures the uniqueness of the position of the heat shrink tube during sleeve connection, greatly facilitating subsequent precise sleeve connection.

[0049] The cylinder involved in the present invention, the solenoid valve on the pipeline connecting the cylinder to the compressed air source is connected to the control electric box circuit. Its specific working principle and connection method are existing technologies and are not the technical points to be protected by the present invention, so they will not be repeated here.

[0050] When using it, first select the heat shrink tube with the appropriate diameter according to the size of the stator coil wire, and then set the output length of the heat shrink tube and the horizontal moving distance of the mobile platform through the touch screen controller. Then the settings can be started to work.

[0051] When working, the tube push cylinder and the one-way bearing cooperate to drive the knurled driving wheel to rotate, and the knurled driving wheel and the driven wheel cooperate to clamp the heat shrink tube and move it forward to a predetermined length. After it is in place, the tube cutting cylinder is triggered to drive the cutter to cut the heat shrink tube, and at the same time, the positioning cylinder is triggered to extend forward to position the heat shrink tube at the predetermined accurate position. At this time, the feeding mechanism, the automatic tube cutting mechanism and the heat shrink tube guide positioning mechanism are in a waiting state.

[0052] At this time, the external motor stator carrier drives the stator coil wire into the working position, and the wire positioning cylinder drives the V-shaped positioning block to rise to position the coil wire. At the same time, the wire pressing cylinder drives the wire pressure strip to move down, pressing the coil wire to complete the positioning of the coil wire. At this time, the sleeve cylinder is triggered to extend, and the mounting plate drives the heat shrink tube to move forward and sleeve it outside the positioned coil wire, and the hot air blower is triggered to start. At the same time, the slider cylinder drives the hot air gun to move back and forth, and the hot air shrinks the heat shrink tube to tightly wrap the coil wire, completing the automatic feeding, cutting and sleeve heat shrinking of the heat shrink tube. Then repeat the above actions to feed, cut and shrink the heat shrink tube for the next time.

[0053] The above embodiments are preferred implementation modes of the present invention and are only used to facilitate the description of the present invention. They are not intended to limit the present invention in any form. Any person with ordinary knowledge in the relevant technical field, if they do not depart from the scope of the technical features of the present invention, can make equivalent embodiments by partial changes or modifications to the technical contents disclosed in the present invention, and they still fall within the scope of the technical features of the present invention without departing from the technical features of the present invention.

Claims

1. A heat shrink tubing automatic feeding, cutting and heat shrinking device, comprising a frame (1), characterized in that: The frame (1) is provided with a mounting seat (1a), a movable platform (2) is provided on the mounting seat (1a), a material tray (3) on which a heat shrink tube is rolled is connected to the movable platform (2), the heat shrink tube in the material tray (3) is automatically output through a feeding mechanism (4) on the mounting seat (1a), and the conveying direction of the feeding mechanism (4) is the same as the moving direction of the movable platform (2); An automatic tube cutting mechanism (5) and a heat shrink tube guiding and positioning mechanism (6) are sequentially arranged on the moving platform (2) on the side of the output end of the feeding mechanism (4); the heat shrink tube enters the heat shrink tube guiding and positioning mechanism (6) after passing through the automatic tube cutting mechanism (5); and a wire clamping mechanism (7) for clamping the external coil wire is arranged on the frame (1) on the side of the heat shrink tube guiding and positioning mechanism (6); When the external coil wire is located in the wire clamping mechanism (7), the external coil wire is opposite to the cut heat shrink tube on the heat shrink tube guiding and positioning mechanism (6); a hot air blowing mechanism (8) corresponding to the heat shrink tube on the heat shrink tube guiding and positioning mechanism (6) is provided on the frame (1) above the wire clamping mechanism (7); The wire clamping mechanism (7) is composed of a clamping support (7a) arranged on a frame (1) below the heat shrink tube guiding and positioning mechanism (6), a wire positioning cylinder (7b) fixed on the clamping support (7a) in a vertical direction, a V-shaped positioning block (7c) fixed to the free end of the piston rod of the wire positioning cylinder (7b) and opposite to the heat shrink tube guiding and positioning mechanism (6), a wire pressing cylinder (7d) arranged on the frame (1) above the heat shrink tube guiding and positioning mechanism (6), and a wire pressing strip (7e) fixed to the free end of the piston rod of the wire pressing cylinder (7d) and cooperating with the V-shaped positioning block (7c) to press the wire; when the V-shaped positioning block (7c) and the wire pressing strip (7e) cooperate to clamp the wire of the motor stator coil, the wire is opposite to the heat shrink tube on the heat shrink tube guiding and positioning mechanism (6); The V-shaped positioning block (7c) is composed of a horizontal connecting portion (7f) fixedly connected to the free end of the piston rod of the wire positioning cylinder (7b) by means of a screw, a vertical positioning portion (7g) integrally formed at the free end of the horizontal connecting portion (7f), two positioning portions (7h) integrally formed at the upper end of the vertical positioning portion (7g) and arranged at intervals, and a V-shaped notch (7i) arranged at the upper end of the positioning portion (7h); a guide groove (7j) adapted to the wire pressure strip (7e) is formed between the two positioning portions (7h); A pressing block (7k) matching the V-shaped notch (7i) is formed on the conductor pressure strip (7e); when the conductor pressure strip (7e) enters the guide groove (7j), the pressing block (7k) simultaneously enters the V-shaped notch (7i); The feeding mechanism (4) comprises a feeding support (4a), on which a knurled driving wheel (4b) is movably connected via a rotating shaft, and one end of the rotating shaft of the knurled driving wheel (4b) extends to the outside of the feeding support (4a) and is connected to a one-way bearing (4c); A column (4d) is provided on the movable platform (2) on the side of the one-way bearing (4c), a push tube cylinder (4e) is hingedly connected to the column (4d), and a free end of a piston rod of the push tube cylinder (4e) is hingedly connected to the one-way bearing (4c); A lower pressing plate (4f) is hingedly connected to the upper end of the feeding support (4a), and a driven wheel (4g) that cooperates with the knurled driving wheel (4b) is movably connected to the bottom of the lower pressing plate (4f). The heat shrink tube output from the material tray (3) is automatically output through the cooperation of the knurled driving wheel (4b) and the driven wheel (4g).

2. The automatic heat shrink tubing feeding, cutting and heat shrinking device according to claim 1, characterized in that: The mobile platform (2) is composed of a mounting plate (2a), a linear slide rail (2b) arranged between the mounting plate (2a) and the mounting seat (1a), and a sleeve cylinder (2c) fixed to the edge of the mounting seat (1a) and having a free end of a piston rod connected to the mounting plate (2a).

3. The automatic heat shrink tubing feeding, cutting and heat shrinking device according to claim 1, characterized in that: The two ends of the driven wheel (4g) support shaft are respectively connected to connecting seats (4h), and each connecting seat (4h) is respectively fixedly connected to a pressure rod (4i), and the free end of the pressure rod (4i) passes through the lower pressure plate (4f) and extends to the upper side of the lower pressure plate (4f); An adjusting spring (4j) is sleeved on the outer periphery of the pressure rod (4i) between the lower pressure plate (4f) and the connecting seat (4h), an annular groove is formed on the proximal end of the free end of the pressure rod (4i), a limiting sleeve (4k) is sleeved in the annular groove, and the limiting sleeve (4k) is located on the upper end surface of the lower pressure plate (4f). In an initial state, the pressure rod (4i) can be telescopically fixed on the lower pressure plate (4f) with the cooperation of the adjusting spring (4j) and the limiting sleeve (4k).

4. The automatic feeding, cutting and heat shrinking device for heat shrinkable tube according to claim 1, characterized in that: The automatic pipe cutting mechanism (5) comprises a cutter seat (5a) fixed on the mobile platform (2), and a cutting hole (5b) opposite to the feeding mechanism (4) is provided on the cutter seat (5a); A hanging plate (5c) is fixed in the horizontal direction on the upper end of the cutting knife seat (5a), and a pipe cutting cylinder (5d) is arranged in the vertical direction on the hanging plate (5c). The piston rod of the pipe cutting cylinder (5d) passes through the hanging plate (5c) and extends to the lower side of the hanging plate (5c) and is connected to a cutting knife (5e) matching the cutting hole (5b); Cutter guide blocks (5f) matching with the cutter (5e) are arranged on the cutter seats (5a) on the left and right sides of the cutter (5e), ​​and the cutter (5e) is driven by the pipe cutting cylinder (5d) to move up and down along the cutter guide blocks (5f).

5. The automatic feeding, cutting and heat shrinking device for heat shrinkable tube according to claim 4, characterized in that: The heat shrink tube guiding and positioning mechanism (6) comprises a positioning cylinder (6a) fixed to the side of the cutter seat (5a), a first connecting block (6b) connected to the free end of the piston rod of the positioning cylinder (6a), and a guide tube (6c) arranged on the first connecting block (6b) in the horizontal direction and opposite to the cutting hole (5b); the end of the guide tube (6c) opposite to the cutting hole (5b) is flared, and the heat shrink tube is transported by the feeding mechanism through the cutting hole and enters the guide tube (6c).

6. The automatic heat shrink tubing feeding, cutting and heat shrinking device according to claim 1, characterized in that: The hot air shrinking mechanism (8) comprises a slider cylinder (8a) fixed on the frame (1), a second connecting block (8b) connected to the free end of the piston rod of the slider cylinder (8a), a hot air gun clamping block (8c) connected to the second connecting block (8b), and a hot air gun (8d) clamped and fixed on the hot air gun clamping block (8c); the hot air gun (8d) is opposite to the heat shrink tube on the heat shrink tube guiding and positioning mechanism (6), and the extension direction of the slider cylinder (8a) is parallel to the guiding direction of the heat shrink tube guiding and positioning mechanism (6).

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