CN117637259A

CN117637259A - Automatic twisting and pipe penetrating device for heat shrinkage pipe

Info

Publication number: CN117637259A
Application number: CN202210969981.5A
Authority: CN
Inventors: 王传松; 周福新
Original assignee: Shenzhen Kaifa Technology Co Ltd
Current assignee: Shenzhen Kaifa Technology Co Ltd
Priority date: 2022-08-12
Filing date: 2022-08-12
Publication date: 2024-03-01

Abstract

The invention relates to the technical field of heat-shrinkable tube processing equipment, and particularly discloses an automatic wire twisting and tube penetrating device for a heat-shrinkable tube packaged by an extension line of an unmanned aerial vehicle power motor, which replaces manual sleeving and baking of a heat-shrinkable tube, has high operation efficiency and good processing quality, is used for rounding the heat-shrinkable tube and reducing tube penetrating difficulty, and comprises a carrying unit, a wire twisting unit for grasping and twisting the extension line, a heat-shrinkable tube penetrating unit with a round sucking component and a flexible wire guide mechanism, a flexible wire positioning unit for pulling and holding a flexible wire, a baking unit for baking the flexible wire and a blanking unit for taking out a processed finished product, wherein the carrying unit comprises a rotatable turntable and at least five carrying driving components distributed along the circumferential direction of the turntable, and each carrying driving component comprises a carrying tool which is connected with the turntable in a sliding manner and used for carrying a workpiece to be processed; the twisting unit, the heat shrinkage pipe penetrating unit, the flexible wire positioning unit and the blanking unit are positioned beside the turntable and correspond to four continuous carrying driving assemblies on the turntable one by one.

Description

Automatic twisting and pipe penetrating device for heat shrinkage pipe

Technical Field

The invention relates to the technical field of heat-shrinkable tube processing equipment, in particular to an automatic wire twisting and tube penetrating device for a heat-shrinkable tube packaged by an extension line of an unmanned aerial vehicle power motor.

Background

In unmanned aerial vehicle's course of working, its power motor generally needs to add and welds three flexible extension lines to be connected with controller and power electricity, after three flexible extension lines welded to power motor, need wear to establish the path pyrocondensation sleeve on every extension line and draw in fixedly to the solder joint, turn round the line with three flexible extension again and become one, sheathe in big sleeve pipe high temperature and toast the design, utilize the shrink of pyrocondensation pipe under the high temperature toasting, realize the spacing to the power motor wiring end, and the pyrocondensation pipe has functions such as soft, fire-retardant, insulation, anticorrosion, can guarantee the stability of wiring end and the reliability of power motor use. Therefore, the welding of the flexible extension line is a key step of the power motor production process, and has important significance on whether the power motor can reliably work.

At present, when flexible extension lines are welded, a heat shrinkage pipe is sleeved by a manual mode, the labor intensity is high, the sleeve penetrating and baking operations are generally completed by 280 (UPH 280) per hour, the working efficiency is low, the time period for operating and training new staff is long, and meanwhile, the quality problems that the heat shrinkage pipe is not penetrated in place, the baking heat shrinkage is not in place and the like exist; in addition, the heat shrinkage tube for the sleeve in the market adopts coiled materials, the cross section of part of incoming materials is irregular ellipse, and the cross section of a common flexible extension line is circular, so that the heat shrinkage tube is difficult to meet the penetration of the flexible extension line, the tube penetrating difficulty of the heat shrinkage tube is increased, and the welding operation efficiency of the flexible extension line is further influenced.

Disclosure of Invention

Based on the above, it is necessary to provide an automatic wire twisting and pipe penetrating device for heat shrinkage pipes, which replaces manual sleeving and baking of heat shrinkage pipes, improves the working efficiency, avoids the sleeving and baking quality problems caused by personnel fatigue and misoperation, and improves the processing quality; through inhaling the circle to the pyrocondensation pipe, adjust the irregular pyrocondensation pipe of cross section in the incoming material, reduced the cross-under degree of difficulty of pyrocondensation pipe.

The automatic wire twisting and pipe penetrating device for the heat shrinkage pipe comprises a carrying unit, a wire twisting unit, a heat shrinkage pipe penetrating unit, a flexible wire positioning unit, a baking unit and a discharging unit, wherein the carrying unit comprises a turntable, a first driving mechanism used for driving the turntable to rotate, and at least five carrying driving assemblies arranged on the turntable and distributed along the circumferential direction of the turntable, each carrying driving assembly comprises a carrying tool in sliding connection with the turntable, and a second driving mechanism used for driving the carrying tool to be close to or far from the center of the turntable, and the carrying tool is used for carrying a workpiece to be processed; the wire twisting unit, the heat shrinkage tube penetrating unit, the flexible wire positioning unit and the blanking unit are respectively positioned at the side of the turntable and correspond to four continuous object carrying driving assemblies on the turntable one by one;

the wire twisting unit comprises a clamping piece used for clamping the tail end of an extension line of a workpiece to be processed, and a third driving mechanism for driving the clamping piece to rotate so as to twist the flexible wire;

the heat-shrinkable tube cross-connection unit comprises a round sucking assembly for receiving the heat-shrinkable tube and adjusting rounding of the heat-shrinkable tube, and a flexible wire guide mechanism for guiding and positioning the tail end of the flexible wire so as to align the flexible wire with the heat-shrinkable tube after round sucking, wherein the round sucking assembly comprises an upper suction head and a lower suction head which are communicated with an external air pressure device, and the upper suction head and the lower suction head jointly provide round sucking air pressure for the heat-shrinkable tube;

the flexible wire positioning unit comprises a clamping plate, a fourth driving mechanism for driving the clamping plate to be close to or far away from the turntable, and a fifth driving mechanism for driving the clamping plate and the fourth driving mechanism to lift along the vertical direction, wherein a clamping gap is formed at the bottom of the clamping plate and is used for clamping and pulling the tail end of a flexible wire;

the baking unit is used for baking the flexible wire pulled by the flexible wire positioning unit and comprises a heating head which is suspended above the turntable and a seventh driving mechanism which drives the heating head to move above the turntable;

the blanking unit comprises a gripper for gripping a processed finished product and a sixth driving mechanism for driving the gripper to move.

In one embodiment, the automatic wire twisting and pipe penetrating device for the heat shrinkage pipe further comprises a box frame which is erected above the turntable and fixedly connected with the turntable, a controller which is installed on the box frame, a control panel which is electrically connected with the controller and used for sending an operation instruction to the controller, and a control cabinet, wherein the object carrying unit, the wire twisting unit, the heat shrinkage pipe penetrating unit, the flexible wire positioning unit and the blanking unit are respectively arranged on a working table surface of the control cabinet.

In one embodiment, the workbench surface of the control cabinet is provided with a feeding position, a twisting position, a pipe penetrating position, a baking position and a material taking position in sequence in the circumferential direction of the turntable, when the number of the object carrying driving components is greater than five, at least one cooling position is further arranged between the material taking position and the feeding position, the twisting unit is arranged at the twisting position, the heat shrinkage pipe penetrating unit is arranged at the pipe penetrating position, the flexible line positioning unit is arranged at the baking position, and the material discharging unit is arranged at the material taking position.

In one embodiment, the carrying tool comprises a fixed plate fixed on the turntable and an objective table in sliding connection with the fixed plate, wherein the top surface of the fixed plate is provided with a sliding rail extending along the radial direction of the turntable, the bottom surface of the objective table is provided with a sliding groove in sliding fit with the sliding rail, the end part of the objective table is provided with a limiting plate extending towards the direction close to the top surface of the fixed plate, the limiting plate is provided with a guide hole for the tail end of the fixed plate to penetrate through, and the output end of the second driving mechanism is fixedly connected with the limiting plate; the end of fixed plate is equipped with first backup pad, first spacing breach has been seted up in the first backup pad, is equipped with the locating pin that treats the head location of machined part on the objective table, sets up between locating pin and first backup pad and be equipped with the second backup pad of the spacing breach of second, sets up between second backup pad and locating pin and the line ball piece of being connected with the objective table swing, the line ball piece is used for compressing tightly the flexible line of treating the machined part.

In one embodiment, the automatic wire twisting and pipe penetrating device for the heat shrinkage pipe further comprises a feeding unit, wherein the feeding unit comprises a vibration plate which is electrically connected with the controller and used for accommodating the heat shrinkage pipe to be connected in a penetrating mode, and a material sorting mechanism connected with the vibration plate, a material conveying channel is arranged on the material sorting mechanism, one end of the material conveying channel is communicated with the output end of the vibration plate, and the other end of the material conveying channel corresponds to the round sucking component.

In one embodiment, the cross sections of the upper suction head and the lower suction head are respectively in a semicircular arc structure, and the inner surfaces of the upper suction head and the lower suction head are respectively provided with air holes communicated with an external air pressure device; the round sucking assembly further comprises an eighth driving mechanism for driving the upper suction head to be close to or far away from the lower suction head.

In one embodiment, the automatic wire twisting and threading device for the heat shrinkage tube further comprises an opening and closing mechanism arranged between the circle sucking component and the flexible wire guide mechanism, the opening and closing mechanism comprises a guide tube, a threading channel is formed in the guide tube in the horizontal direction, the inner diameter of the threading channel, which is adjacent to the circle sucking component, is smaller than the inner diameter of the threading channel, which is adjacent to the flexible wire guide mechanism, and the opening and closing mechanism further comprises a switching valve which is electrically connected with the controller and used for cutting off or communicating the threading channel.

In one embodiment, the flexible wire guide mechanism comprises a poking block corresponding to the large-diameter end of the guide tube, a ninth driving mechanism for driving the poking block to move along the vertical direction to be close to or far away from the flexible wire to be guided, and a tenth driving mechanism for driving the ninth driving mechanism and the poking block to move to be close to or far away from the turntable.

In one embodiment, the wire twisting unit further comprises an opening and closing tool arranged beside the clamping piece, the opening and closing tool comprises a supporting rod fixed on a working table surface of the control cabinet, a cantilever connected with the top of the supporting rod in a rotating mode, a swinging rod connected with the tail end of the cantilever, and an eleventh driving mechanism for driving the cantilever and the swinging rod to swing in a vertical plane, and the swinging rod swings to push the wire pressing block to press or leave the flexible wire.

In one embodiment, the automatic wire twisting and pipe penetrating device for the heat shrinkage pipe further comprises a discharging and transferring unit, wherein the discharging and transferring unit comprises a material conveying belt arranged between a baking position and a material taking position, and a twelfth driving mechanism electrically connected with the controller and driving the material conveying belt to rotate.

According to the automatic wire twisting and pipe penetrating device for the heat-shrinkable pipe, the workpiece to be machined is positioned and converted among different stations through the object carrying unit, an operator only needs to fix the workpiece to be machined on one object carrying tool on the rotary table, the workpiece to be machined is sequentially moved to the wire twisting unit to twist a flexible wire, the heat-shrinkable pipe is in butt joint with the heat-shrinkable pipe at the heat-shrinkable pipe penetrating unit, the tail end of the heat-shrinkable pipe is straightened at the flexible wire positioning unit, the straightened heat-shrinkable pipe is baked by the baking unit, and a finished product is taken out at the blanking unit; the round component is used for sucking the heat-shrinkable tube, so that the heat-shrinkable tube is round, the heat-shrinkable tube can be smoothly sleeved on the flexible wire, and the penetration difficulty of the heat-shrinkable tube is reduced.

Drawings

FIG. 1 is a schematic view of an automatic twisting and threading device for heat shrink tubing in an embodiment of the present invention;

FIG. 2 is a schematic diagram of a heat shrink tube automatic twisting and threading device according to an embodiment of the present invention after a box frame is removed;

FIG. 3 is a schematic view of the embodiment of FIG. 2 illustrating an alternative view of the auto-twisting tube threading device for heat shrink tubes;

FIG. 4 is a schematic view of a portion of an auto-twisting tube threading device for heat shrink tubes according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a loading tool according to an embodiment of the present invention;

FIG. 6 is a schematic view of a partial enlarged structure of the portion A in the embodiment shown in FIG. 3;

FIG. 7 is a schematic diagram of a twisted wire unit according to an embodiment of the present invention;

FIG. 8 is a schematic view of a heat shrink tubing access unit according to an embodiment of the present invention;

FIG. 9 is an enlarged partial schematic view of portion B of the embodiment of FIG. 8;

FIG. 10 is a schematic diagram of a flexible wire positioning unit according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of a blanking unit according to an embodiment of the present invention.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.

Referring to fig. 1-3, the invention discloses an automatic wire twisting and threading device 10 for heat shrinkage tubes, which comprises a carrying unit 100, a wire twisting unit 200, a heat shrinkage tube threading unit 300, a flexible wire positioning unit 400, a baking unit 500 and a blanking unit 600, wherein the object (to-be-machined piece) implemented by the device of the embodiment comprises a head and three flexible wires welded on one side of the head, the carrying unit 100 is used for positioning a plurality of to-be-machined pieces at one time, the plurality of to-be-machined pieces arranged on the carrying unit 100 at the same time are respectively in different machining stages, so that the to-be-machined pieces can finish machining operations at different stages when being arranged on the carrying unit 100, and in addition, the carrying unit 100 is used as a carrier for transferring the positions of the to-be-machined pieces, so that the to-be-machined pieces can move to different stations and perform corresponding operations. The twisting unit 200, the heat shrinkage tube penetrating unit 300, the flexible wire positioning unit 400, the baking unit 500 and the blanking unit 600 are sequentially arranged along the position moving direction of the carrying unit 100, the five correspond to different processing stages of a workpiece to be processed respectively, and the twisting unit 200 is used for twisting three flexible wires of the workpiece to be processed positioned on the carrying unit 100 to form a twisted body; the heat shrinkage pipe threading unit 300 is used for sleeving the heat shrinkage pipe on the stranded body after rounding the heat shrinkage pipe; the flexible wire positioning unit 400 serves to pull the ends of the strands so that the strands are straightened and provide the baking unit 500 with processing conditions; the baking unit 500 is used for baking the flexible wire pulled by the flexible wire positioning unit 400, and specifically baking the part of the flexible wire stranded body, which is sleeved by the heat shrinkage tube, so that the heat shrinkage tube is softened and is adhered to the stranded body, and the heat shrinkage tube is fixed on the flexible wire stranded body; the blanking unit 600 is used for taking out the finished product to be processed, so as to free the corresponding position on the carrying unit 100, and facilitate the operator to place a new workpiece to be processed on the carrying unit 100.

Referring to fig. 1-6, the carrying unit 100 includes a turntable 110, a first driving mechanism 120 for driving the turntable 110 to rotate, and at least five carrying driving assemblies 130 disposed on the turntable 110 and distributed along a circumferential direction of the turntable 110, in this embodiment, the first driving mechanism 120 is a motor installed at a bottom center of the turntable 110, and an output shaft of the motor is fixedly connected with a center of the turntable 110 to drive the turntable 110 to rotate clockwise or counterclockwise. In addition, the motor can be a servo motor or a reduction gear set is arranged at the output end of a common three-phase motor to adjust the rotation speed of the turntable 110, so that the rotation speed and the rotation period of the turntable 110 are adapted to the time of each working stage of the workpiece to be processed. Each carrying driving assembly 130 comprises a carrying tool 140 slidably connected with the turntable 110, and a second driving mechanism 131 for driving the carrying tool 140 to approach or depart from the center of the turntable 110, wherein the carrying tool 140 is used for receiving a workpiece to be processed; the twisting unit 200, the heat shrinkage tube penetrating unit 300, the flexible wire positioning unit 400 and the blanking unit 600 are respectively positioned at the side of the turntable 110 and correspond to four continuous carrying driving assemblies 130 on the turntable 110 one by one.

In one embodiment, the automatic wire twisting and pipe penetrating device for heat shrinkage pipes further comprises a box frame 150 erected above the turntable 110 and fixedly connected with the turntable 110, a controller 151 installed on the box frame 150, a control panel 152 electrically connected with the controller 151 and used for sending operation instructions to the controller 151, and a control cabinet 153; in this embodiment, the box frame 150 encloses a square or cuboid working space, the carrying unit 100, the twisting unit 200, the heat shrinkage tube penetrating unit 300, the flexible wire positioning unit 400 and the blanking unit 600 are respectively disposed on the working table of the control cabinet 153, that is, the carrying unit 100, the twisting unit 200, the heat shrinkage tube penetrating unit 300, the flexible wire positioning unit 400, the baking unit 500 and the blanking unit 600 are respectively accommodated in the working space, transparent baffles are respectively disposed on each side of the box frame 150, and a feed inlet, a discharge outlet and a personnel operating position are respectively disposed on the transparent baffles. In this embodiment, the controller 151 is electrically connected to an external power supply to access an operating voltage, the control panel 152 is provided with corresponding control buttons to control the power-consuming components of each unit to start and stop, the control panel 152 is further provided with a display screen to display the operating parameters of the heat shrink tube automatic twisting and threading device 10, and of course, the control panel 152 can be replaced by a touch display screen integrally to simplify the device structure.

Further, the bottom of the control cabinet 153 is provided with a supporting leg 154, and the height of the supporting leg 154 is adjustable to adjust the height of the working table of the control cabinet 153, so as to adapt to the height of an operator. The control cabinet 153 is provided with a feeding position, a twisting position, a pipe penetrating position, a baking position and a material taking position sequentially in the circumferential direction of the turntable 110, when the number of the material carrying driving components 130 is equal to five, when the turntable 110 rotates to each station corresponding to each material carrying driving component 130 one by one, the feeding position provides an operation area for operators, the operators can conveniently place workpieces to be processed on the material carrying tool 140 corresponding to the feeding position, the twisting unit 200 is arranged at the twisting position, the heat shrinkage pipe penetrating unit 300 is arranged at the pipe penetrating position, the flexible line positioning unit 400 is arranged at the baking position, and the discharging unit 600 is arranged at the material taking position. When the number of the carrying driving components 130 is greater than five, at least one cooling position is further provided between the material taking position and the material loading position, the twisting unit 200 is arranged at the twisting position, the heat shrinkage tube penetration unit 300 is arranged at the tube penetration position, the flexible wire positioning unit 400 is arranged at the baking position, and the material discharging unit 600 is arranged at the material taking position. In this embodiment, six carrying driving assemblies 130 are uniformly arranged in the circumferential direction of the turntable 110, that is, a cooling position is arranged on the working table surface of the control cabinet 153, so that when the blank carrying tool 140 moves to the feeding position after the finished product is taken down by the blanking unit 600, the carrying tool 140 is naturally cooled or cooled by a fan or a cold air curtain in the process through the cooling position, so that the carrying tool 140 is cooled, and a new workpiece to be machined is placed on the carrying tool 140. In actual operation, if the carrying tool 140 adopts natural cooling, the number of cooling positions between the material taking position and the material loading position can be increased, and correspondingly, the number of carrying driving components 130 corresponding to the cooling positions on the turntable 110 is increased, so as to prolong the cooling time of the carrying tool 140.

Further, an extension table 155 is provided at the edge of the working table of the control cabinet 153 corresponding to the loading position, and the extension table 155 is used for supporting the elbow of the operator and providing a to-be-machined workpiece placement area, so that the operator can place a large number of to-be-machined workpieces at the extension table 155 at a time to reduce the time of frequently taking materials.

Referring to fig. 2, 5 and 6, the carrying tool 140 includes a fixing plate 141 fixed on the turntable 110 and an objective table 142 slidably connected with the fixing plate 141, the end of the fixing plate 141 extends out of the edge of the turntable 110, a sliding rail 143 extending radially along the turntable 110 is disposed on the top surface of the fixing plate 141, a sliding slot slidably engaged with the sliding rail 143 is disposed on the bottom surface of the objective table 142, a limiting plate 144 extending in a direction close to the top surface of the fixing plate 141 is disposed at the end of the objective table 142, a guiding hole 145 for the end of the fixing plate 141 to penetrate is formed in the limiting plate 144, and the output end of the second driving mechanism 131 is fixedly connected with the limiting plate 144. Through setting up limiting plate 144 to offer guiding hole 145 on limiting plate 144, when fixed plate 141 and objective table 142 pass through slide rail spout cooperation with sliding connection, further limited objective table 142 for the gliding orbit of fixed plate 141, avoided objective table 142 to produce rocking for fixed plate 141 sliding in-process, in addition, limiting plate 144 still provides the connecting portion of second actuating mechanism 131 and objective table 142 for with the driving force transmission of second actuating mechanism 131 to objective table 142, in order to drive objective table 142 and remove. In this embodiment, the second driving mechanism 131 is a linear motor or an air cylinder. Preferably, the air cylinder of the second driving mechanism 131 is provided, the input end of the air cylinder is periodically connected with positive pressure air and negative pressure air, and the output end of the air cylinder corresponds to the limiting plate 144, so that the limiting plate 144 and the objective table 142 are pushed away from the turntable 110 by the positive pressure air, or the limiting plate 144 and the objective table 142 are driven to be close to the turntable 110 by the negative pressure air.

The end of the fixing plate 141 is provided with a first support plate 146, a first limit notch 1461 is formed in the first support plate 146, a positioning pin 147 for positioning the head of a workpiece to be processed is arranged on the objective table 142, a second support plate 148 arranged between the positioning pin 147 and the first support plate 146 and provided with a second limit notch 1481, and a wire pressing block 149 arranged between the second support plate 148 and the positioning pin 147 and connected with the objective table 142 in a swinging manner, wherein the wire pressing block 149 is used for pressing flexible wires of the workpiece to be processed. In this embodiment, a limiting platform is disposed on a side of the second support plate 148 adjacent to the positioning pin 147, the limiting platform is flush with the bottom of the second limiting notch 1481, and the pressing block 149 is hinged to the limiting platform. The first support plate 146 and the second support plate 148 are used together to receive a flexible wire on a workpiece to be processed to effect positioning of the flexible wire. When the workpiece to be machined is positioned, the pressing line block 149 is firstly stirred, the limiting platform is exposed, the head of the workpiece to be machined is embedded on the positioning pin 147, the flexible line of the workpiece to be machined is sequentially erected on the first support plate 146 and the second support plate 148, and then the pressing line block 149 is reversely stirred to compress the flexible line, so that the positioning of one end of the flexible line is realized.

Referring to fig. 2, 3 and 7, the wire twisting unit 200 includes a grip 210 for gripping the end of the extension wire of the workpiece to be processed, and a third driving mechanism 220 for driving the grip 210 to rotate to twist the flexible wire. Further, the wire twisting unit 200 further includes a bracket 230 for fixing a third driving mechanism 220, where the third driving mechanism 220 is a common three-phase motor or a servo motor, and an output end of the third driving mechanism 220 is fixedly connected with the clamping member 210, in this embodiment, the clamping member 210 is a pneumatic gripper or an electric gripper, further, a photoelectric sensor for detecting an end of a flexible wire is disposed on the bracket 230, and is electrically connected with a driving device of the clamping member 210, and when the second driving mechanism pushes the stage, the photoelectric sensor sends an electrical signal to the driving device of the clamping member 210, and the driving device controls the clamping member 210 to act so as to grasp the end of the flexible wire, so as to further drive the end of the flexible wire to rotate under the action of the third driving mechanism 220, thereby implementing twisting of the flexible wire.

Further, referring to fig. 7, the wire twisting unit 200 further includes an opening and closing tool disposed beside the clamping member 210, the opening and closing tool includes a support rod 240 fixed on a working table of the control cabinet, a cantilever 250 rotatably connected to the top of the support rod 240, a swing rod 260 connected to the end of the cantilever 250, and an eleventh driving mechanism 270 driving the cantilever 250 and the swing rod 260 to swing in a vertical plane, where the swing rod 260 swings to push the wire pressing block to press or separate from the flexible wire. In this embodiment, in order to reduce the difficulty of the swing rod 260 pushing the wire pressing block, the wire pressing block is designed into an L-shaped structure, the joint of the horizontal portion and the vertical portion of the L-shaped structure of the wire pressing block is hinged on the limiting platform of the second support plate, the eleventh driving mechanism 270 is a motor, and a multi-stage reduction gear is arranged between the eleventh driving mechanism 270 and the cantilever 250, so as to enable the eleventh driving mechanism 270 to drive the cantilever 250 to swing periodically. Thus, when the swing rod 260 and the cantilever 250 swing under the driving of the eleventh driving mechanism 270, during the first half period, the swing rod 260 pushes the vertical part of the wire pressing block, so that the wire pressing block swings and the transverse part of the wire pressing block leaves the flexible wire, contacts the constraint of the wire pressing block on the flexible wire, so that the flexible wire is twisted under the driving of the clamping piece 210, after the twisting action of the flexible wire is completed, the controller controls the clamping piece 210 to loosen the flexible wire, at this moment, the swing rod 260 is in the second half period, the swing rod 260 swings reversely and pushes the vertical part of the wire pressing block to swing back, so that the transverse part of the wire pressing block compresses the flexible wire, the positioning of the flexible wire is realized, and then the limiting plate is driven by the second driving mechanism to move towards the direction close to the turntable 110, so that the flexible wire is separated from the twisting unit 200.

Referring to fig. 2-4 and 8-9, the heat shrink tube penetration unit 300 includes a round sucking assembly for receiving the heat shrink tube and adjusting rounding of the heat shrink tube, and a flexible wire guiding mechanism for guiding and positioning the end of the flexible wire to align the flexible wire with the heat shrink tube after round sucking, wherein the round sucking assembly includes an upper suction head 310 and a lower suction head 320 which are communicated with an external air pressure device, and the upper suction head 310 and the lower suction head 320 together provide round sucking air pressure for the heat shrink tube. Further, the cross sections of the upper suction head 310 and the lower suction head 320 are respectively in a semicircular arc structure, the upper suction head 310 and the lower suction head 320 are jointly enclosed to form a heat shrinkage tube circle sucking area, and the semicircular arc inner surface of the upper suction head 310 and the semicircular arc inner surface of the lower suction head 320 are jointly used for limiting the shape and the size of the outer surface of the heat shrinkage tube after circle sucking. The inner surfaces of the upper suction head 310 and the lower suction head 320 are respectively provided with an air hole 330 communicated with an external air pressure device; the round sucking assembly further comprises an eighth driving mechanism 340 for driving the upper suction head 310 to be close to or far away from the lower suction head 320, the eighth driving mechanism 340 is a linear motor or a cylinder, and a displacement sensor which is electrically connected with the eighth driving mechanism 340 and used for detecting a heat shrinkage tube is arranged on the upper suction head 310, and the displacement sensor can be replaced by a photoelectric sensor. When rounding the cut heat shrink tube, the heat shrink tube is placed on the lower suction head 320 from the left side of the lower suction head 320, the displacement sensor detects the occurrence of the heat shrink tube on the lower suction head 320 and sends an electrical signal to the eighth driving mechanism 340, so that the eighth driving mechanism 340 controls the upper suction head 310 to move in a direction approaching the lower suction head 320 until the upper suction head 310 is covered with the lower suction head 320, and then the upper suction head 310 and the lower suction head 320 are respectively communicated with the negative pressure provided by the external air pressure device, so that the negative pressure is generated in the round suction area at the air hole 330 approaching the upper suction head 310 and the air hole 330 approaching the lower suction head 320, respectively, and thus, the deformed heat shrink tube stretches to the inner surface of the upper suction head 310 and the inner surface of the lower suction head 320 under the action of the negative pressure, thereby rounding the heat shrink tube.

Further, the automatic wire twisting and penetrating device for the heat shrinkage tube further comprises an opening and closing mechanism arranged between the circle sucking component and the flexible wire guiding mechanism, the opening and closing mechanism comprises a guide tube 350, a threading channel is formed in the guide tube 350 along the horizontal direction, the inner diameter of the threading channel, which is adjacent to the circle sucking component, is smaller than the inner diameter of the threading channel, which is adjacent to the flexible wire guiding mechanism, and the opening and closing mechanism further comprises a switch valve which is electrically connected with the controller and used for isolating or communicating the threading channel. In this embodiment, the length of the penetration channel of the guide tube 350 is greater than or equal to the length of the heat shrink tube, an image sensor electrically connected to the switch valve is disposed in the guide tube 350, and when the image sensor detects that a heat shrink tube completely enters the guide tube 350 and is sleeved on the flexible wire, the image sensor sends an electrical signal to the switch valve, and the switch valve acts to block the penetration channel, so as to prevent the heat shrink tube in the circle suction area from continuously entering the guide tube 350. When the image sensor detects that the heat shrinkage tube and the flexible wire leave the guide tube 350, a signal is sent to the switch valve to enable the switch valve to act and open, so that the heat shrinkage tube in the circle sucking area enters the guide tube 350 and the next flexible wire threading operation is performed.

The flexible wire guide mechanism is used for adjusting the position of the flexible wire, so that the tail end of the stranded flexible wire is aligned with the heat shrinkage tube, and when the second driving mechanism drives the limiting plate and the objective table to move, the tail end of the flexible wire can be accurately inserted into the heat shrinkage tube, and the tube penetrating operation of the flexible wire is realized. In this embodiment, the flexible wire guiding mechanism includes a poking block 360 corresponding to the large diameter end of the guiding tube 350, a ninth driving mechanism 370 driving the poking block 360 to move along the vertical direction to approach or separate from the flexible wire to be guided, and a tenth driving mechanism 380 driving the ninth driving mechanism 370 and the poking block 360 to move to approach or separate from the turntable 110. Further, the bottom of the poking block 360 is provided with a fork opening 361 with a semicircular cross section, the fork opening 361 extends along the thickness direction of the poking block 360 and is used for limiting the extending path of the flexible line, in other words, the flexible line is limited through the inner surface of the fork opening 361, so that the flexible line is arranged along the thickness direction of the fork opening 361, and the guide of the flexible line is realized. Specifically, when the ninth driving mechanism 370 drives the poking block 360 to approach the flexible wire, if the flexible wire is in a deflected state, when the edge of the fork opening 361 of the poking block 360 abuts against the edge of the flexible wire, the edge of the fork opening 361 will push the flexible wire slightly, so that the flexible wire slides into the fork opening 361, and the alignment of the flexible wire is realized. In this embodiment, since the workpiece to be processed is positioned during feeding, the flexible wire on the workpiece to be processed is only deflected by a smaller angle in the twisting process, and the deflection direction of the flexible wire is smaller than the deflection angle of the width direction of the poking block 360 when the poking block 360 is close to the flexible wire, the flexible wire can be pushed into the fork 361 through the fork 361 of the poking block 360 and the action of the flexible wire. When the heat shrinkage tube is sleeved on the flexible line, the poking block 360 moves away from the turntable 110 under the drive of the tenth driving mechanism 380, then presses the heat shrinkage tube under the drive of the ninth driving mechanism 370, and further moves towards the direction close to the turntable 110 under the drive of the tenth driving mechanism 380, so that the heat shrinkage tube moves to the connection part of the flexible line and the head of the workpiece to be processed along the flexible line.

Further, the automatic twisting and pipe penetrating device for heat shrinkage pipes further comprises a feeding unit 700, wherein the feeding unit 700 comprises a vibration plate 710 which is electrically connected with the controller and used for accommodating heat shrinkage pipes to be penetrated and connected, and a material sorting mechanism 720 which is connected with the vibration plate 710, a material conveying channel is arranged on the material sorting mechanism 720, one end of the material conveying channel is communicated with the output end of the vibration plate 710, and the other end of the material conveying channel corresponds to the round sucking component, namely corresponds to the input end of the lower suction head 320. In this embodiment, the width of the material conveying channel is slightly larger than the diameter of the heat shrinkage tube, so, when the heat shrinkage tube cut into a predetermined length enters the material sorting mechanism 720 from the input end of the material conveying channel under the drive of the vibration disc 710, the heat shrinkage tube always moves along the length direction of the material conveying channel under the constraint of the material conveying channel and is guided by the inner wall surface of the material conveying channel, thereby realizing the sorting of the automatic feeding of the heat shrinkage tube. In this embodiment, a recess is formed on the working surface of the control cabinet 153, a base slidingly connected to the inner surface of the control cabinet 153 is disposed at the recess, and the vibration plate 710 is disposed on the base. In this way, the distance between the vibration plate 710 and the working table of the control cabinet 153 can be adjusted, so that the output end of the vibration plate 710 is flush with the material conveying channel and the bottom of the inner surface of the lower suction head 320, so as to ensure smooth movement of the heat shrinkage tube.

Referring to fig. 3 and 10, the flexible wire positioning unit 400 includes a clamping plate 410, a fourth driving mechanism 420 for driving the clamping plate 410 to approach or separate from the turntable 110, and a fifth driving mechanism 430 for driving the clamping plate 410 and the fourth driving mechanism 420 to lift in a vertical direction, wherein a slit 411 is formed at a bottom of the clamping plate 410, the slit 411 is used for clamping and pulling an end of a flexible wire, and in this embodiment, the slit 411 is in a valley-shaped structure. The clamping plate 410 and the pressing line block of the flexible line positioning unit 400 are used for positioning the flexible line together, when the carrying tool 140 drives the workpiece to be processed to move to the position of the flexible line positioning unit 400, the fourth driving mechanism 420 drives the clamping plate 410 to be close to the tail end of the flexible line, and then the fifth driving mechanism 430 drives the clamping plate 410 to move towards the direction close to the top surface of the turntable 110 until the flexible line is embedded into the clamping slot 411 of the clamping plate 410 and is in limiting abutting connection with the edge of the clamping slot 411, so that the tail end of the flexible line is prevented from swinging. The baking unit comprises a heating head which is suspended above the turntable 110 and a seventh driving mechanism which drives the heating head to move above the turntable 110, in particular, the heating head is arranged on the box frame, when the heating head is electrified and generates heat under the action of the controller and generates heat radiation for heating the heat shrinkage tube, the heat shrinkage tube is softened and glued on the flexible wire, so that the fixed connection between the heat shrinkage tube and the flexible wire is realized. After the heat shrink tube is connected with the flexible wire, the fifth driving mechanism 430 drives the clamping plate 410 to leave the flexible wire, the restraint of the clamping plate 410 on the flexible wire is released, and the flexible wire leaves the flexible wire positioning unit 400 under the driving of the second driving mechanism and the turntable 110 so as to move to the next station.

It should be noted that, in this embodiment, the baking unit 500 includes two heating heads and two seventh driving mechanisms for driving the two heating heads respectively, where one seventh driving mechanism drives one heating head to move and heat the heat shrinkage tube at the baking position, and the other seventh driving mechanism drives the other heating head to move and preheat the flexible wire of the workpiece placed at the feeding position, so as to reduce twisting difficulty of the flexible wire.

Referring to fig. 2, 3 and 11, the blanking unit 600 includes a gripper 610 for gripping a processed product and a sixth driving mechanism 620 for driving the gripper 610 to move, in this embodiment, the gripper 610 is an electric gripper electrically connected with the controller and capable of opening and closing, and moves to a carrying tool corresponding to the material taking position under the control of the sixth driving mechanism 620, and removes the product on the carrying tool to free the carrying tool for placing a new workpiece to be processed. In order to realize automatic output of finished products, in this embodiment, the automatic twisting and threading device for heat shrinkage tubes further includes a discharging and transferring unit 800, the discharging and transferring unit 800 includes a material conveying belt 810 disposed between a baking position and a material taking position, and a twelfth driving mechanism 820 electrically connected to the controller and driving the material conveying belt 810 to rotate, the twelfth driving mechanism 820 is a linear motor, and the material conveying belt 810 is used for receiving a processed finished product sent by a gripper so as to transmit the processed finished product to a next processing device or a storage device.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims

1. The automatic wire twisting and tube penetrating device for the heat shrinkage tube is characterized by comprising a carrying unit, a wire twisting unit, a heat shrinkage tube penetrating unit, a flexible wire positioning unit, a baking unit and a discharging unit, wherein the carrying unit comprises a rotary table, a first driving mechanism for driving the rotary table to rotate, and at least five carrying driving assemblies which are arranged on the rotary table and distributed along the circumferential direction of the rotary table, each carrying driving assembly comprises a carrying tool in sliding connection with the rotary table, and a second driving mechanism for driving the carrying tool to be close to or far away from the center of the rotary table, and the carrying tool is used for carrying workpieces to be processed; the wire twisting unit, the heat shrinkage tube penetrating unit, the flexible wire positioning unit and the blanking unit are respectively positioned at the side of the turntable and correspond to four continuous object carrying driving assemblies on the turntable one by one;

2. The automatic wire twisting and pipe penetrating device for the heat shrinkable pipe according to claim 1, further comprising a box frame erected above the turntable and fixedly connected with the turntable, a controller arranged on the box frame, a control panel electrically connected with the controller and used for sending an operation instruction to the controller, and a control cabinet, wherein the carrying unit, the wire twisting unit, the heat shrinkable pipe penetrating unit, the flexible wire positioning unit and the blanking unit are respectively arranged on a working table surface of the control cabinet.

3. The automatic wire twisting and threading device for the heat shrinkage tube according to claim 2, wherein a feeding position, a wire twisting position, a tube threading position, a baking position and a material taking position are sequentially arranged on the working table surface of the control cabinet in the circumferential direction of the turntable, when the number of the object carrying driving components is greater than five, at least one cooling position is further arranged between the material taking position and the feeding position, the wire twisting unit is arranged at the wire twisting position, the heat shrinkage tube penetrating unit is arranged at the tube threading position, the flexible wire positioning unit is arranged at the baking position, and the discharging unit is arranged at the material taking position.

4. The automatic wire twisting and pipe penetrating device for the heat shrinkage pipe according to claim 3, wherein the object carrying tool comprises a fixed plate fixed on a turntable and an object stage in sliding connection with the fixed plate, the top surface of the fixed plate is provided with a sliding rail extending along the radial direction of the turntable, the bottom surface of the object stage is provided with a sliding groove in sliding fit with the sliding rail, the end part of the object stage is provided with a limiting plate extending towards the direction close to the top surface of the fixed plate, the limiting plate is provided with a guide hole for the tail end of the fixed plate to penetrate, and the output end of the second driving mechanism is fixedly connected with the limiting plate; the end of fixed plate is equipped with first backup pad, first spacing breach has been seted up in the first backup pad, is equipped with the locating pin that treats the head location of machined part on the objective table, sets up between locating pin and first backup pad and be equipped with the second backup pad of the spacing breach of second, sets up between second backup pad and locating pin and the line ball piece of being connected with the objective table swing, the line ball piece is used for compressing tightly the flexible line of treating the machined part.

5. The automatic wire twisting and pipe penetrating device for the heat shrinkable pipe according to claim 4, further comprising a feeding unit, wherein the feeding unit comprises a vibration plate which is electrically connected with the controller and used for accommodating the heat shrinkable pipe to be penetrated and connected, and a material sorting mechanism which is connected with the vibration plate, the material sorting mechanism is provided with a material conveying channel, one end of the material conveying channel is communicated with the output end of the vibration plate, and the other end of the material conveying channel corresponds to the round sucking component.

6. The automatic wire twisting and pipe penetrating device for the heat shrinkable pipe according to claim 5, wherein the cross sections of the upper suction head and the lower suction head are respectively in a semicircular arc structure, and the inner surfaces of the upper suction head and the lower suction head are respectively provided with an air hole communicated with an external air pressure device; the round sucking assembly further comprises an eighth driving mechanism for driving the upper suction head to be close to or far away from the lower suction head.

7. The automatic wire twisting and threading device for heat shrinkable tubes according to claim 6, further comprising an opening and closing mechanism arranged between the circle sucking assembly and the flexible wire guide mechanism, wherein the opening and closing mechanism comprises a guide tube, a threading channel is formed in the guide tube in the horizontal direction, the inner diameter of the threading channel, which is adjacent to the circle sucking assembly, is smaller than the inner diameter of the threading channel, which is adjacent to the flexible wire guide mechanism, and the opening and closing mechanism further comprises a switch valve which is electrically connected with the controller and used for isolating or communicating the threading channel.

8. The automatic wire twisting and threading device for heat shrinkable tubes according to claim 7, wherein the flexible wire guide mechanism comprises a poking block corresponding to the large-diameter end of the guide tube, a ninth driving mechanism for driving the poking block to move along the vertical direction to be close to or far away from the flexible wire to be guided, and a tenth driving mechanism for driving the ninth driving mechanism and the poking block to move to be close to or far away from the turntable.

9. The automatic wire twisting and threading device for heat-shrinkable tubes according to claim 8, wherein the wire twisting unit further comprises an opening and closing tool arranged beside the clamping piece, the opening and closing tool comprises a supporting rod fixed on a working table surface of the control cabinet, a cantilever connected with the top of the supporting rod in a rotating mode, a swinging rod connected with the tail end of the cantilever, and an eleventh driving mechanism driving the cantilever and the swinging rod to swing in a vertical plane, and the swinging rod swings to push the wire pressing block to press or leave the flexible wire.

10. The automatic twisting and threading device for heat shrinkable tubing of claim 9 further comprising a discharge transfer unit comprising a material conveying belt disposed between the baking position and the material taking position and a twelfth driving mechanism electrically connected to the controller and driving the material conveying belt to rotate.