Heat shrink tubing automatic cutting device

Abstract

The present invention relates to an automatic sleeve cutting device for heat shrinkable tubes, comprising a cutting mechanism and a sleeve mechanism, wherein the cutting mechanism is mounted on the first frame, and the sleeve mechanism is mounted on the second frame, wherein the feeding unit is used for feeding the heat shrinkable tubes, wherein the feeding unit is used for sending the heat shrinkable tubes to the cutting unit, wherein the cutting unit is used for cutting the heat shrinkable tubes, wherein the clamping unit is used for clamping and fixing the cut heat shrinkable tubes, wherein the connecting unit is used for grabbing the heat shrinkable tubes on the clamping unit, wherein the secondary positioning unit is used for clamping and positioning the product, wherein the product clamping unit is used for clamping the positioned product, and wherein the connecting unit sets the heat shrinkable tubes at the preset position of the product. The present invention realizes the full automation of the cutting and setting of the heat shrinkable tubes, thereby greatly improving the production efficiency and the quality of the products.

Description

Technical Field

[0001] The invention relates to a heat shrinkable tube sleeve, and in particular to a heat shrinkable tube automatic cutting sleeve device. Background Art

[0002] Heat shrink tubing is a special polyolefin heat shrink tubing, also called EVA material. The outer layer is made of high-quality soft cross-linked polyolefin material and the inner layer is made of hot melt adhesive. The outer layer has the characteristics of insulation, corrosion resistance, and wear resistance, and the inner layer has the advantages of low melting point, waterproof sealing, and high adhesion. Heat shrink tubing is usually required at both ends of the power lead. However, the cutting and casing process of heat shrink tubing needs to be done manually, so there are disadvantages such as high labor cost, inconvenient operation, and low efficiency. Summary of the invention

[0003] In order to overcome the above-mentioned defects, the present invention provides an automatic cutting and sleeve device for heat shrinkable tubes, which accurately cuts heat shrinkable tubes of required lengths through a cutting mechanism, and accurately sleeves the heat shrinkable tubes at preset positions of products through a sleeve mechanism, thereby realizing full automation of the cutting and sleeve installation of heat shrinkable tubes, greatly improving production efficiency and product quality.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] A device for automatically cutting sleeves of heat shrinkable tubes comprises a first frame, a cutting mechanism, a second frame and a sleeve mechanism, wherein the cutting mechanism is mounted on the first frame, and the sleeve mechanism is mounted on the second frame, the cutting mechanism comprises a feeding unit, a feeding unit, a cutting unit and a clamping unit, and the sleeve mechanism comprises a connecting pipe unit, a product clamping unit and a secondary positioning unit, the feeding unit is used for feeding the heat shrinkable tube, the feeding unit is used for sending the heat shrinkable tube to the cutting unit, the cutting unit is used for cutting the heat shrinkable tube, the clamping unit is used for clamping and fixing the cut heat shrinkable tube, the connecting pipe unit is used for grabbing the heat shrinkable tube on the clamping unit, the secondary positioning unit is used for clamping and positioning the product, the product clamping unit is used for clamping the positioned product, and the connecting pipe unit sleeves the heat shrinkable tube at a preset position of the product.

[0006] Preferably, the feeding unit includes a feeding fixing plate and a feeding clamping cylinder installed on the first frame, the feeding fixing plate is provided with a feeding hole for the heat shrink tube to pass through, and the feeding clamping cylinder is provided with a pair of feeding clamping cylinder jaws, and the feeding clamping cylinder jaws are located below the feeding hole.

[0007] Preferably, the feeding unit includes an up and down moving cylinder and a feeding clamping cylinder, the up and down moving cylinder is installed on the first frame, the up and down moving cylinder is connected to the feeding clamping cylinder and can drive the feeding clamping cylinder to move up and down, and the feeding clamping cylinder is provided with a pair of feeding clamping cylinder claws.

[0008] Preferably, the cutting unit includes a fixed frame, a guide column and a cutting cylinder, the fixed frame is installed on the first frame, the guide column and the cutting cylinder are installed on the fixed frame, the guide column is provided with a material guide hole for the heat shrink tube to pass through, the cutting cylinder is provided with a pair of cutting cylinder jaws, and a tool is fixedly installed on each cutting cylinder jaw.

[0009] Preferably, the clamping unit includes a first moving cylinder, a second moving cylinder and a clamping cylinder, the first moving cylinder is installed on the first frame, the second moving cylinder is installed on the first moving cylinder and the first moving cylinder can drive the second moving cylinder to move forward and backward, the clamping cylinder is installed on the second moving cylinder, the second moving cylinder can drive the clamping cylinder to move left and right, and the clamping cylinder is provided with a pair of clamping cylinder jaws.

[0010] Preferably, two clamping cylinders arranged in parallel are provided on the second motion cylinder, and the clamping cylinders are located below the cutting unit.

[0011] Preferably, the taking over unit includes a flipping cylinder, a taking over cylinder, a taking over cylinder clamp and a first Z-axis drive unit, the first Z-axis drive unit is installed on the second frame, the first Z-axis drive unit is connected to a bracket and the first Z-axis drive unit can drive the bracket to move up and down, the flipping cylinder is installed on the bracket, the flipping cylinder is connected to the taking over cylinder, and the taking over cylinder is provided with a pair of taking over cylinder clamps.

[0012] Preferably, the first Z-axis driving unit includes a stepper motor, a lead screw and a lead screw nut, the stepper motor is connected to the lead screw, the lead screw is threaded to the lead screw nut, the bracket is fixedly mounted on the lead screw nut, a rotating shaft is rotatably mounted on the bracket, the flip cylinder is connected to the rotating shaft and can drive the rotating shaft to rotate relative to the bracket, and two parallel-arranged takeover cylinders are mounted on the rotating shaft.

[0013] Preferably, the secondary positioning unit includes a secondary positioning cylinder and a third Z-axis driving cylinder, the third Z-axis driving cylinder is installed on the second frame, the secondary positioning cylinder is connected to the third Z-axis driving cylinder and the third Z-axis driving cylinder can control the secondary positioning cylinder to move up and down, and the secondary positioning cylinder is provided with a pair of secondary positioning cylinder clamps.

[0014] Preferably, the product clamping unit includes a product clamping cylinder and a second Z-axis driving cylinder, the second Z-axis driving cylinder is installed on the second frame, the product clamping cylinder is connected to the second Z-axis driving cylinder and the second Z-axis driving cylinder can drive the product clamping cylinder to move up and down, and the product clamping cylinder is provided with a pair of product clamping cylinder claws.

[0015] The beneficial effects of the present invention are as follows: the present invention mainly comprises a cutting mechanism and a sleeve mechanism, the cutting mechanism comprises a feeding unit, a feeding unit, a cutting unit and a clamping unit, the sleeve mechanism comprises a connecting pipe unit, a product clamping unit and a secondary positioning unit, the heat shrinkable tube enters the device through the feeding unit, the heat shrinkable tube is fed to the cutting unit through the feeding unit, the cutting unit cuts the heat shrinkable tube of a preset length and the clamping unit clamps the cut heat shrinkable tube, and then the connecting pipe unit and the clamping unit cooperate with each other, so that the heat shrinkable tube clamped by the clamping unit is smoothly transferred to the connecting pipe unit, after the product is clamped and positioned by the secondary positioning unit and the product clamping unit, the connecting pipe unit finally sleeves the heat shrinkable tube at the preset position of the product in the product clamping unit, thereby completing the automatic cutting and sleeve work of the heat shrinkable tube; the present invention accurately cuts the heat shrinkable tube of the required length through the cutting mechanism, and accurately sleeves the heat shrinkable tube at the preset position of the product through the sleeve mechanism, thereby realizing the full-process automatic operation of cutting and sleeve of the heat shrinkable tube, greatly improving the production efficiency and the quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2 is a side view of the present invention;

[0018] Figure 3 It is a structural schematic diagram of the cutting mechanism in the present invention;

[0019] Figure 4 It is a schematic structural diagram of the cutting mechanism of the present invention from another viewing angle;

[0020] Figure 5 for Figure 4 The enlarged view of point A in the middle;

[0021] Figure 6 It is one of the structural schematic diagrams of the sleeve mechanism in the present invention;

[0022] Figure 7 This is the second structural schematic diagram of the sleeve mechanism in the present invention;

[0023] Figure 8 This is the third structural schematic diagram of the sleeve mechanism in the present invention;

[0024] Fig. 9It is a structural schematic diagram of the product conveying mechanism in the present invention;

[0025] Fig.10 It is a structural schematic diagram of the heat shrink tube discharge tray in the present invention;

[0026] Fig.11 It is a structural schematic diagram of the heat shrink tube guide pulley assembly in the present invention;

[0027] Fig.12 It is a schematic diagram of the structure of the heat shrink tube in the present invention;

[0028] In the figure: 100-first frame, 101-heat shrink tube discharge tray, 102-heat shrink tube guide pulley assembly, 103-heat shrink tube;

[0029] 200-cutting mechanism, 210-feeding unit, 211-feeding fixing plate, 212-feeding hole, 213-feeding clamping cylinder, 214-feeding clamping cylinder clamping claw,

[0030] 220-feeding unit, 221-up and down motion cylinder, 222-feeding clamping cylinder, 223-feeding clamping cylinder clamping jaws,

[0031] 230-cutting unit, 231-fixed frame, 232-guide column, 233-material guide hole, 234-cutting cylinder, 235-cutting cylinder clamp, 236-tool,

[0032] 240-clamping unit, 241-first moving cylinder, 242-second moving cylinder, 243-clamping cylinder, 244-clamping cylinder jaws,

[0033] 300-second frame, 400-casing mechanism,

[0034] 410-take-over unit, 411-flip cylinder, 412-take-over cylinder, 413-take-over cylinder clamp, 414-first Z-axis drive unit, 415-stepping motor, 416-screw, 417-screw nut, 418-bracket, 419-rotating shaft,

[0035] 420-product clamping unit, 421-product clamping cylinder, 422-product clamping cylinder jaws, 423-second Z-axis drive cylinder,

[0036] 430-secondary positioning unit, 431-secondary positioning cylinder, 432-secondary positioning cylinder clamp, 433-third Z-axis driving cylinder; 500-product, 510-product conveying mechanism. DETAILED DESCRIPTION

[0037] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0038] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0039] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0040] Example: Figure 1-12As shown, an automatic tube cutting device for heat shrinkable tubes includes a first frame 100, a cutting mechanism 200, a second frame 300 and a tube mechanism 400. The cutting mechanism 200 is installed on the first frame 100, and the tube mechanism 400 is installed on the second frame 300. The cutting mechanism 200 includes a feeding unit 210, a feeding unit 220, a cutting unit 230 and a clamping unit 240. The tube mechanism 400 includes a connecting unit 410, a product clamping unit 420 and a secondary positioning unit 430. The feeding unit 210 is used for heat shrinkable tubes. The feeding unit 220 is used for feeding the heat shrink tube 103 to the cutting unit 230, the cutting unit 230 is used for cutting the heat shrink tube 103, the clamping unit 240 is used for clamping and fixing the cut heat shrink tube, the connecting unit 410 is used for grabbing the heat shrink tube 103 on the clamping unit 240, the secondary positioning unit 430 is used for clamping and positioning the product 500, the product clamping unit 420 is used for clamping the positioned product 500, and the connecting unit 410 sets the heat shrink tube 103 at a preset position of the product 500.

[0041] The present invention mainly achieves two purposes: first, cutting the required heat shrink tube from the feed tube; second, sleeve the cut heat shrink tube on the preset position of the product, the cutting work is completed by the cutting mechanism 200, and the sleeve work is completed by the sleeve mechanism 400; wherein the device comprises two parallel first frames 100 and second frames 300, the first frame 100 is equipped with the cutting mechanism 200, and the second frame 300 is equipped with the sleeve mechanism 400, such as Figure 1 , 10 As shown in -12, first, the heat shrink tube discharge tray 101 sends the heat shrink tube to the feeding unit 210 through the heat shrink tube guide pulley assembly 102, and then the feeding unit 220 pulls the heat shrink tube out of the feeding unit and sends it to the cutting unit 230. The cutting unit 230 cuts off the heat shrink tube 103 at the end of a certain length, and the clamping unit 240 just clamps the cut heat shrink tube and sends the heat shrink tube to the connecting unit 410. The connecting unit 410 clamps the heat shrink tube, and the clamping unit 240 releases the heat shrink tube. The product 500 is sent to the secondary positioning unit 430 by the product conveying mechanism 510, and the secondary The positioning unit 430 clamps the product, and the product clamping unit 420 adjusts its position and clamps the ground wire in the product. Part of the ground wire is passed through the top of the product clamping unit. The connecting unit 410 moves downward and sleeves the heat shrink tube on the ground wire higher than the product clamping unit to complete the sleeve work. The connecting unit 410 releases the heat shrink tube and returns to its position. The present invention accurately cuts the heat shrink tube of the required length through the cutting mechanism, and the sleeve mechanism 400 accurately sleeves the heat shrink tube on the preset position of the product, thereby realizing the full automation of cutting and sleeve installation of the heat shrink tube, which greatly improves production efficiency and product quality.

[0042] like Figure 3 Shown and Figure 4 As shown, the feed unit 210 includes a feed fixing plate 211 and a feed clamping cylinder 213 installed on the first frame 100. The feed fixing plate 211 is provided with a feed hole 212 for the heat shrink tube to pass through. The feed clamping cylinder 213 is provided with a pair of feed clamping cylinder jaws 214, and the feed clamping cylinder jaws 214 are located below the feed hole 212. The feed clamping cylinder 213 is installed below the feed fixing plate 211. The heat shrink tube guide pulley assembly 102 delivers the heat shrink tube to the feed unit 210 and allows the heat shrink tube 103 to pass through the feed hole 212 provided on the feed fixing plate 211. The feed clamping cylinder 213 controls a pair of feed clamping cylinder jaws 214 to clamp the heat shrink tube passing through the feed hole 212.

[0043] like Figure 4 As shown, the feeding unit 220 includes an up and down moving cylinder 221 and a feeding clamping cylinder 222. The up and down moving cylinder 221 is installed on the first frame 100. The up and down moving cylinder 221 is connected to the feeding clamping cylinder 222 and can drive the feeding clamping cylinder 222 to move up and down. The feeding clamping cylinder 222 is provided with a pair of feeding clamping cylinder jaws 223. The up-and-down moving cylinder 221 is installed on the first frame 100 on one side of the feeding unit, and the feeding clamping cylinder 222 is horizontally installed on the up-and-down moving cylinder 221, and the feeding clamping cylinder jaw 223 on the feeding clamping cylinder 222 is located directly below the feeding clamping cylinder jaw 214 of the feeding clamping cylinder 213, and the feeding clamping cylinder 222 controls the feeding clamping cylinder jaw 223 to clamp the heat shrink tube, and the up-and-down moving cylinder 221 drives the feeding clamping cylinder 222 to pull the heat shrink tube downward and feed the heat shrink tube into the cutting unit 230.

[0044] like Figure 5As shown, the cutting unit 230 includes a fixed frame 231, a guide column 232 and a cutting cylinder 234. The fixed frame 231 is installed on the first frame 100, and the guide column 232 and the cutting cylinder 234 are installed on the fixed frame 231. The guide column 232 is provided with a material guide hole 233 for the heat shrink tube to pass through. The cutting cylinder 234 is provided with a pair of cutting cylinder jaws 235, and a tool 236 is fixedly installed on each cutting cylinder jaw 235. The guide column 232 is cylindrical and vertically mounted on the fixing frame 231. The material guide hole 233 is located at the central axis of the guide column. A pair of cutters 236 are located directly below the guide column 232. The up and down moving cylinder 221 passes the heat shrink tube clamped by the feeding clamping cylinder through the material guide hole 233 on the guide column 232, and makes the heat shrink tube passing under the cutter just the preset cutting length. The cutting cylinder 234 controls the cutter 236 to cut the heat shrink tube.

[0045] like Figure 4 As shown, the clamping unit 240 includes a first motion cylinder 241, a second motion cylinder 242 and a clamping cylinder 243, wherein the first motion cylinder 241 is mounted on the first frame 100, the second motion cylinder 242 is mounted on the first motion cylinder 241 and the first motion cylinder can drive the second motion cylinder to move forward and backward, the clamping cylinder 243 is mounted on the second motion cylinder 242, the second motion cylinder 242 can drive the clamping cylinder 243 to move left and right, and a pair of clamping cylinder jaws 244 are provided on the clamping cylinder 243. Two clamping cylinders 243 arranged in parallel are provided on the second motion cylinder 242, and the clamping cylinder 243 is located below the cutting unit 230. The movement direction of the first moving cylinder 241 is positioned as the front-to-back direction, that is, the direction toward or away from the second frame, and the movement direction of the second moving cylinder 242 is defined as the left-to-right direction, that is, the direction toward or away from the feeding unit. The directions of the first moving cylinder and the second moving cylinder are perpendicular to each other, and the two clamping cylinders 243 are arranged along the movement direction of the second moving cylinder 242. For example: first, the clamping cylinder claw 244 on the left clamping cylinder is located directly below the guide column 232, so the clamping cylinder claw on the left first clamps a cut heat shrink tube, and then the second moving cylinder 242 drives the clamping cylinder to move to the left, and moves the clamping cylinder claw on the right to directly below the guide column 232, and clamps the cut heat shrink tube. This can ensure that double-line heat shrink tubes are taken at one time, which is more efficient. The first moving cylinder 241 drives the clamping cylinder 243 to move forward and backward to ensure that the heat shrink tube is smoothly delivered to the connecting unit 410.

[0046] like Figure 6As shown, the take-over unit 410 includes a flip cylinder 411, a take-over cylinder 412, a take-over cylinder clamp 413 and a first Z-axis drive unit 414, the first Z-axis drive unit 414 is installed on the second frame 300, the first Z-axis drive unit 414 is connected to a bracket 418 and the first Z-axis drive unit 414 can drive the bracket 418 to move up and down, the flip cylinder 411 is installed on the bracket, the flip cylinder 411 is connected to the take-over cylinder 412, and the take-over cylinder 412 is provided with a pair of take-over cylinder clamps 413.

[0047] The first Z-axis driving unit 414 includes a stepper motor 415, a screw 416 and a screw nut 417, the stepper motor 415 is connected to the screw 416, the screw 416 is screwed to the screw nut 417, the bracket 418 is fixedly mounted on the screw nut 417, a rotating shaft 419 is rotatably mounted on the bracket 418, the flip cylinder 411 is connected to the rotating shaft 419 and can drive the rotating shaft to rotate relative to the bracket, and two parallel-arranged connecting cylinders 412 are mounted on the rotating shaft 419. The flip cylinder 411 can control the connecting cylinder 412 to flip 180 degrees. When the stepper motor drives the screw 416 to rotate, the screw nut 417 drives the bracket to move up and down along the screw. The two connecting cylinders 412 correspond to the clamping cylinders 243 one by one. When the two clamping cylinders 243 have clamped the heat shrink tube 103, the first moving cylinder 241 is in the retracted position, that is, the clamping cylinder 243 is away from the connecting unit to prevent the connecting cylinder 412 from colliding with the clamping cylinder 243 during the flipping process. The cylinder 411 controls the connecting cylinder 412 to flip 180° and then flip to the side of the clamping cylinder. The first moving cylinder 241 drives the clamping cylinder 243 to move toward the side of the connecting cylinder 412 until the clamping cylinder jaw 244 moves to just above the connecting cylinder jaw 413. The connecting cylinder controls the connecting cylinder jaw 413 to clamp the heat shrink tube in the clamping cylinder jaw, and at the same time, the clamping cylinder jaw 244 releases the heat shrink tube, thereby completing the handover of the heat shrink tube. The first Z-axis drive unit 414 is to realize the subsequent sleeve work.

[0048] like Figure 6 and Figure 7As shown, the secondary positioning unit 430 includes a secondary positioning cylinder 431 and a third Z-axis driving cylinder 433. The third Z-axis driving cylinder 433 is installed on the second frame 300. The secondary positioning cylinder 431 is connected to the third Z-axis driving cylinder 433 and the third Z-axis driving cylinder 433 can control the secondary positioning cylinder 431 to move up and down. A pair of secondary positioning cylinder clamps 432 are provided on the secondary positioning cylinder 431. The third Z-axis driving cylinder 433 is provided with two parallel secondary positioning cylinders 431. When the product conveying mechanism 510 delivers the product to the secondary positioning unit 430, the third Z-axis driving cylinder 433 controls the secondary positioning cylinder 431 to lift up, and the secondary positioning cylinder 431 controls the secondary positioning cylinder clamps 432 to clamp the two products 500 to prevent the products from being offset to the left and right due to the vibration of the equipment.

[0049] like Figure 8 As shown, the product clamping unit 420 includes a product clamping cylinder 421 and a second Z-axis driving cylinder 423. The second Z-axis driving cylinder 423 is installed on the second frame 300. The product clamping cylinder 421 is connected to the second Z-axis driving cylinder 423 and the second Z-axis driving cylinder 423 can drive the product clamping cylinder 421 to move up and down. A pair of product clamping cylinder jaws 422 are provided on the product clamping cylinder 421. Two parallel product clamping cylinders 421 are installed on the second Z-axis driving cylinder 423. When the secondary positioning cylinder jaws 432 clamp the product, as shown in FIG. Figure 6 As shown, the second Z-axis driving cylinder 423 controls the product clamping cylinder 421 to move downward and controls two pairs of product clamping cylinder jaws 422 to clamp the ground wire of a product respectively. Figure 7 As shown, the first Z-axis drive unit 414 then drives the connecting cylinder 412 downward, and respectively sleeves the two heat shrink tubes 103 clamped by the connecting cylinder jaws on the ground wires of the two products extending out of the product clamping cylinder jaws, thereby completing the operation of sleeve the heat shrink tube on the product ground wire. Before the next group of products arrives, the secondary positioning cylinder moves downward, and the secondary positioning cylinder jaws 432 are opened for standby.

[0050] The operation process of the present invention: the steps are as follows:

[0051] Step 1: If Figure 1 , 10 As shown in FIG. 12 , first, the heat shrink tube discharge tray 101 delivers the heat shrink tube to the feed hole 212 of the feed unit 210 through the heat shrink tube guide pulley assembly 102, and is clamped by the feed clamping cylinder jaw 214 and the feed clamping cylinder jaw 223;

[0052] Step 2: The up-and-down moving cylinder 221 drives the feeding clamping cylinder 222 to pull the heat shrink tube downward, and feeds the heat shrink tube into the guide hole 233 in the cutting unit 230, so that the heat shrink tube passing under the cutter is just the preset cutting length, and the cutting cylinder 234 controls the cutter 236 to cut the heat shrink tube;

[0053] Step 3: The clamping cylinder jaw 244 on the left clamping cylinder is located directly below the guide column 232, so the clamping cylinder jaw on the left first clamps a cut heat shrink tube, and then the second moving cylinder 242 drives the clamping cylinder to move to the left, moves the clamping cylinder jaw on the right to directly below the guide column 232, and clamps the cut heat shrink tube;

[0054] Step 4: The turning cylinder 411 controls the connecting cylinder 412 to turn 180° and then turn to the side of the clamping cylinder, that is, the turning cylinder is turned from Figure 7 The status is flipped to Figure 1 The first moving cylinder 241 drives the clamping cylinder 243 to move toward the connecting cylinder 412 until the clamping cylinder jaws 244 move to the top of the connecting cylinder jaws 413, and the connecting cylinder controls the connecting cylinder jaws 413 to clamp the heat shrink tube in the clamping cylinder jaws, while the clamping cylinder jaws 244 release the heat shrink tube, thereby completing the handover of the heat shrink tube;

[0055] Step 5: If Figure 6 As shown, when the product conveying mechanism 510 delivers the product to the secondary positioning unit 430, the third Z-axis driving cylinder 433 controls the secondary positioning cylinder 431 to lift up, and the secondary positioning cylinder 431 controls the secondary positioning cylinder clamp 432 to clamp the two products 500;

[0056] Step 6: If Figure 6 As shown, the second Z-axis driving cylinder 423 controls the product clamping cylinder 421 to move downward and controls the two pairs of product clamping cylinder jaws 422 to clamp the ground wire of a product respectively, and the flip cylinder 411 controls the connecting cylinder 412 to flip 180° and then flip to the side of the product clamping cylinder 421, that is, the flip cylinder is turned from Figure 6 The status is flipped to Figure 7 status, such as Figure 7 As shown, the first Z-axis drive unit 414 then drives the connecting cylinder 412 downward, and respectively sleeves the two heat shrink tubes 103 clamped by the connecting cylinder jaws on the ground wires of the two products extending out of the product clamping cylinder jaws, thereby completing the operation of sleeve the heat shrink tube on the product ground wire. Before the next group of products arrives, the secondary positioning cylinder moves downward, and the secondary positioning cylinder jaws 432 are opened for standby.

[0057] It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these modifications and improvements all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A heat shrink tube automatic cutting device, characterized in that: The invention comprises a first frame (100), a cutting mechanism (200), a second frame (300) and a sleeve mechanism (400), wherein the cutting mechanism (200) is mounted on the first frame (100), the sleeve mechanism (400) is mounted on the second frame (300), the cutting mechanism (200) comprises a feeding unit (210), a feeding unit (220), a cutting unit (230) and a clamping unit (240), the sleeve mechanism (400) comprises a connecting unit (410), a product clamping unit (420) and a secondary positioning unit (430), the feeding unit (210) is used for feeding the heat shrink tube (103) The material feeding unit (220) is used to feed the heat shrink tube (103) to the cutting unit (230), the cutting unit (230) is used to cut the heat shrink tube (103), the clamping unit (240) is used to clamp and fix the cut heat shrink tube, the connecting unit (410) is used to grab the heat shrink tube (103) on the clamping unit (240), the secondary positioning unit (430) is used to clamp and position the product (500), the product clamping unit (420) is used to clamp the positioned product (500), and the connecting unit (410) sleeves the heat shrink tube (103) at a preset position of the product (500); The cutting unit (230) comprises a fixing frame (231), a guide column (232) and a cutting cylinder (234); the fixing frame (231) is mounted on the first frame (100); the guide column (232) and the cutting cylinder (234) are mounted on the fixing frame (231); a material guide hole (233) for the heat shrink tube to pass through is provided on the guide column (232); a pair of cutting cylinder clamping jaws (235) is provided on the cutting cylinder (234); a tool (236) is fixedly mounted on each cutting cylinder clamping jaw (235); The clamping unit (240) comprises a first moving cylinder (241), a second moving cylinder (242) and a clamping cylinder (243); the first moving cylinder (241) is mounted on the first frame (100); the second moving cylinder (242) is mounted on the first moving cylinder (241) and the first moving cylinder can drive the second moving cylinder to move forward and backward; the clamping cylinder (243) is mounted on the second moving cylinder (242); the second moving cylinder (242) can drive the clamping cylinder (243) to move left and right; and a pair of clamping cylinder jaws (244) are provided on the clamping cylinder (243); The connecting unit (410) comprises a flip cylinder (411), a connecting cylinder (412), a connecting cylinder clamp (413) and a first Z-axis drive unit (414); the first Z-axis drive unit (414) is mounted on the second frame (300); the first Z-axis drive unit (414) is connected to a bracket (418) and the first Z-axis drive unit (414) can drive the bracket (418) to move up and down; the flip cylinder (411) is mounted on the bracket; the flip cylinder (411) is connected to the connecting cylinder (412); and the connecting cylinder (412) is provided with a pair of connecting cylinder clamps (413).

2. The heat shrink tube automatic cutting device according to claim 1, characterized in that: The feed unit (210) comprises a feed fixing plate (211) and a feed clamping cylinder (213) mounted on the first frame (100); the feed fixing plate (211) is provided with a feed hole (212) for the heat shrink tube to pass through; the feed clamping cylinder (213) is provided with a pair of feed clamping cylinder jaws (214); the feed clamping cylinder jaws (214) are located below the feed hole (212).

3. The heat shrink tube automatic cutting device according to claim 1, characterized in that: The feeding unit (220) comprises an up-and-down moving cylinder (221) and a feeding clamping cylinder (222); the up-and-down moving cylinder (221) is mounted on the first frame (100); the up-and-down moving cylinder (221) is connected to the feeding clamping cylinder (222) and is capable of driving the feeding clamping cylinder (222) to move up and down; and the feeding clamping cylinder (222) is provided with a pair of feeding clamping cylinder jaws (223).

4. The automatic heat shrink tube cutting device according to claim 1, characterized in that: The second moving cylinder (242) is provided with two clamping cylinders (243) arranged in parallel, and the clamping cylinders (243) are located below the cutting unit (230).

5. The automatic heat shrink tube cutting device according to claim 1, characterized in that: The first Z-axis driving unit (414) comprises a stepper motor (415), a lead screw (416) and a lead screw nut (417); the stepper motor (415) is connected to the lead screw (416); the lead screw (416) is threadedly connected to the lead screw nut (417); the bracket (418) is fixedly mounted on the lead screw nut (417); a rotating shaft (419) is rotatably mounted on the bracket (418); the flip cylinder (411) is connected to the rotating shaft (419) and is capable of driving the rotating shaft to rotate relative to the bracket; and two parallel-arranged connecting cylinders (412) are mounted on the rotating shaft (419).

6. The automatic heat shrink tube cutting device according to claim 1, characterized in that: The secondary positioning unit (430) comprises a secondary positioning cylinder (431) and a third Z-axis driving cylinder (433); the third Z-axis driving cylinder (433) is mounted on the second frame (300); the secondary positioning cylinder (431) is connected to the third Z-axis driving cylinder (433) and the third Z-axis driving cylinder (433) can control the secondary positioning cylinder (431) to move up and down; and a pair of secondary positioning cylinder clamps (432) are provided on the secondary positioning cylinder (431).

7. The heat shrink tube automatic cutting device according to claim 1, characterized in that: The product clamping unit (420) comprises a product clamping cylinder (421) and a second Z-axis driving cylinder (423), wherein the second Z-axis driving cylinder (423) is mounted on the second frame (300), the product clamping cylinder (421) is connected to the second Z-axis driving cylinder (423) and the second Z-axis driving cylinder (423) can drive the product clamping cylinder (421) to move up and down, and the product clamping cylinder (421) is provided with a pair of product clamping cylinder jaws (422).

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