Multi-module heat shrinkage pipe heat shrinkage equipment and method for improving heat shrinkage efficiency

Abstract

The invention discloses a multi-module heat shrink tube heat shrink device and method for improving heat shrink efficiency, and belongs to the field of heat shrink tube heat shrink automation equipment. The device comprises a vertical unit and a horizontal unit which are fixed on a workbench; the vertical unit comprises a first clamping jaw used for clamping a wire harness, a first heating element used for heating the wire harness in the first clamping jaw, and a first wire snapping mechanism used for enabling the heated wire harness to move upwards and poke the heated wire harness to a wire falling area towards one side. The horizontal unit comprises a second clamping jaw used for clamping the wire harness, a second heating element used for heating the wire harness in the second clamping jaw, and a second wire snapping mechanism used for shifting the heated wire harness to one side to a wire falling area. The wire falling area is located between the vertical unit and the horizontal unit, and the passing-in track of the wire harness to be thermally shrunk and the throwing-out track of the thermally shrunk wire harness in the vertical unit and the horizontal unit do not affect each other. According to the invention, the requirement that a wire harness production factory is not allowed to unfasten the binding of the two sides of the wire harness connecting part is met, and the efficiency is effectively improved.

Description

Technical Field

[0001] The present invention belongs to the field of heat shrinkage automation equipment for heat shrinkable tubes in wire harness production, and particularly relates to a heat shrinkable tube heat shrinkage equipment and method for improving heat shrinkage efficiency with multiple modules. Background Art

[0002] In the actual wire harness production field, one or several wires are connected together through processes such as wire stripping, welding, and riveting, and then a heat shrinkable tube is used to heat shrink and cover the connection points thereof to achieve purposes such as insulation and waterproofing, thus forming a wire harness. Usually, 50 or 100 such wire harnesses are bundled together, and both ends of the connection points are tied up to form a bundled wire harness for easy transfer. For distinction, the wire harnesses are divided into wire harnesses to be heat shrunk and heat shrunk wire harnesses.

[0003] For the heat shrinkage of the aforementioned wire harnesses to be heat shrunk, there are currently three methods adopted by wire harness production manufacturers:

[0004] a. Directly use a hot air gun or the like to heat the heat shrinkable tube of the wire harness to be heat shrunk for heat shrinkage. This is an original heat shrinkage method and will be gradually phased out and eliminated;

[0005] b. Heat shrink the heat shrinkable tube by heating the wire harness to be heat shrunk as it flows through the heating area. This heat shrinkage method achieves relatively good effects in terms of heat shrinkage effect and consistency by controlling the flowing speed and the temperature of the heating area;

[0006] c. Heat shrink the heat shrinkable tube by heating the wire harness to be heat shrunk while it stays in the heating area. This heat shrinkage method achieves relatively good effects in terms of heat shrinkage effect and consistency by controlling the staying time in the heating area and the temperature of the heating area;

[0007] Based on the above heat shrinkage process of the wire harness heat shrinkable tube and the current situation of the transfer of bundled wire harnesses, the current heat shrinkage methods respectively have the following problems:

[0008] For the aforementioned heat shrinkage method a, directly heating the heat shrinkable tube with a hot air gun or the like for heat shrinkage: the heat shrinkage consistency of the heat shrinkable tube is poor, the heat shrinkage effect depends on the subjectivity of the worker, and the labor intensity of the worker is high; it is a method to be phased out in current wire harness production factories;

[0009] For the aforementioned heat shrinkage method b, heat shrinking the heat shrinkable tube by heating the wire harness to be heat shrunk as it flows through the heating area: since the flowing distance is relatively large, the wire harness will be pulled to a relatively far place, so the bundling on both sides of the connection part of the bundled wire harness must be released so that the wire harness can flow through the heating area one by one for heat shrinkage of the heat shrinkable tube. This conflicts with the requirement of wire harness production manufacturers that the bundling on both sides of the connection part of the bundled wire harness should not be untied during the transfer process;

[0010] As described in the foregoing heat shrinkage method c, the heat shrinkage of the heat shrinkable tube is performed by heating the heat shrinkable tube in the manner that the heat shrinkable tube stays in the heating area: Since the time required for the heat shrinkage of the heat shrinkable tube is longer than the time for the worker to center the heat shrinkable tube on the wire harness and place it in the heating area, there is a waiting time for the worker after centering the heat shrinkable tube on the wire harness to be heat shrunk, resulting in waste of the beat, which cannot meet the purpose of improving production efficiency of the wire harness manufacturer;

[0011] Based on the above characteristics, the existing heat shrinkable tube equipment cannot synchronously meet or achieve the requirements put forward by the wire harness manufacturer. Therefore, there is an urgent need to provide a new heat shrinkable tube heat shrinkage equipment to optimize the wire harness production process flow and improve the efficiency. Summary of the Invention

[0012] The object of the present invention is to overcome the defects in the prior art and provide a heat shrinkable tube heat shrinkage equipment and method for improving heat shrinkage efficiency with multiple modules.

[0013] The specific technical solutions adopted by the present invention are as follows:

[0014] In the first aspect, the present invention provides a heat shrinkable tube heat shrinkage equipment for improving heat shrinkage efficiency with multiple modules, including a vertical unit and a horizontal unit fixed on a workbench; specifically, a rectangular hole is opened on the desktop of the workbench, and the equipment composed of the vertical unit and the horizontal unit is respectively located in the rectangular hole of the workbench, and the two are adapted to each other with the same tabletop height.

[0015] The vertical unit includes a first jaw for clamping the wire harness, a first heating element for heating the wire harness in the first jaw, and a first wire ejecting mechanism for moving the heated wire harness upward and deflecting it to a wire dropping area to one side;

[0016] The horizontal unit includes a second jaw for clamping the wire harness, a second heating element for heating the wire harness in the second jaw, and a second wire ejecting mechanism for deflecting the heated wire harness to a wire dropping area to one side;

[0017] The wire dropping area is located between the vertical unit and the horizontal unit, and the feeding trajectories of the wire harnesses to be heat shrunk and the throwing trajectories of the heat shrunk wire harnesses in the vertical unit and the horizontal unit do not affect each other.

[0018] Preferably, the first jaw is installed on a first jaw holder, and a first groove for placing the wire harness is vertically opened at the top of the first jaw holder; the first jaw is located on both sides of the bottom of the first groove and is used for clamping the wire harness falling into the first groove.

[0019] Preferably, the initial position of the first heating element is located below the first jaw and can be moved to the first jaw under the drive of a power source; the first heating element includes two sector-shaped heating sheets, and the two heating sheets can be separated or closed into a ring through a hinge rod, and the wire harness can be accommodated at the closed ring to heat the heat shrinkable tube.

[0020] Preferably, the first wire flicking mechanism includes a wire flicking mechanism frame and a first wire deflecting rod; the wire flicking mechanism frame can move up and down in the vertical direction driven by a power source, and a horizontal first wire deflecting rod is installed at the top; the initial position of the first wire deflecting rod is below the bottom of the first groove, and one end is rotatably connected to the wire flicking mechanism frame; the first wire deflecting rod can push the wire harness upward to move out of the first groove, and throw the wire harness into the wire dropping area by rotation.

[0021] Preferably, the second jaw is installed on the second jaw holder, and a second groove for placing the wire harness is horizontally opened beside the second jaw holder; the second jaws are located on both sides of the bottom of the second groove for clamping the wire harness entering the second groove.

[0022] Preferably, the initial position of the second heating element is behind the second jaw, and it can move forward to the second jaw driven by a power source; the second heating element includes two sector-shaped heating sheets, and the two heating sheets can be separated or closed into a ring through a hinge rod, and the wire harness can be accommodated at the closed ring to heat the heat shrinkable tube.

[0023] Preferably, the second wire flicking mechanism includes a second wire deflecting rod; the second wire deflecting rod is horizontally arranged, and one end is rotatably connected to the workbench, and the second wire deflecting rod can throw the wire harness into the wire dropping area by rotation.

[0024] Preferably, the vertical unit is located at the lower left of the wire dropping area, and the horizontal unit is located on the right side of the wire dropping area.

[0025] In a second aspect, the present invention provides a heating method for a heat shrinkable tube heat shrinking device using the multi-module described in any one of the first aspects to improve the heat shrinkage efficiency, which is specifically as follows:

[0026] Place the wire harness to be heat shrunk at the front end of the workbench surface, straighten the heat shrinkable tube to the connection point position of the wire, and then sequentially and cyclically place it into the first groove of the vertical unit and the second groove of the horizontal unit for heat shrinking; when the wire harness to be heat shrunk is clamped by the first jaw or the second jaw, the heating work of the next wire harness to be heat shrunk can be carried out;

[0027] When the heat shrinkable tube is placed into the first groove of the vertical unit, the first clamping jaw clamps the wire harness; the two heating sheets of the first heating element open and move upward, close at the position of the wire harness, and start heat shrinking the heat shrinkable tube on the wire; after the heat shrinking time ends, the two heating sheets of the first heating element open and then move downward to the original position and close again, and the first clamping jaw releases the heat-shrunk wire harness; the wire rack of the first wire ejecting mechanism moves upward in the vertical direction driven by the power source, drives the first wire deflecting rod to push the wire harness upward to move out of the first groove; then, the first wire deflecting rod rotates around the connection point by a certain angle driven by the power source and rotates by a certain angle, and throws the heat-shrunk wire harness into the wire dropping area; then, the wire rack and the first wire deflecting rod of the first wire ejecting mechanism return to the original position;

[0028] When the heat shrinkable tube is placed into the second groove of the horizontal unit, the second clamping jaw clamps the wire harness; the two heating sheets of the second heating element open and move towards the direction close to the second clamping jaw, close at the position of the wire harness, and start heat shrinking the heat shrinkable tube on the wire; after the heat shrinking time ends, the two heating sheets of the second heating element open and then move to the side to the original position and close again, and the second clamping jaw releases the heat-shrunk wire harness; the second wire deflecting rod of the second wire ejecting mechanism rotates around the connection point by a certain angle driven by the power source and rotates by a certain angle, and throws the heat-shrunk wire harness into the wire dropping area; then, the second wire deflecting rod rotates and returns to the original position.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1) It meets the requirement of the wire harness production factory not to untie the bundling not far from both sides of the connection part of the wire harness: As Figure 5 shown, due to the close spatial arrangement of the two heating areas, the existing bundling of the two ends of the connected wire harness can be not untied, and the heat shrinking process can be realized;

[0031] 2) Efficiency improvement: Due to the reasonable layout of the two heating units and the function of automatic wire dropping, workers can alternately feed the heat shrinkable tubes into the two heating areas for heat shrinking, without waiting time, and there is no interference between the feeding and wire dropping of the two, with good convenience and greatly improved efficiency. Description of the Drawings

[0032] Figure 1 is a schematic description diagram of the wire harness;

[0033] Figure 2 is a basic structure description diagram of the residence type heat shrinkable tube machine in the prior art;

[0034] Figure 3 is Figure 2 a description diagram of adding a horizontal heating module in

[0035] Figure 4 is a description diagram of the core structure of the device of the present invention;

[0036] Figure 5 It is a descriptive diagram of the device of the present invention when placed on a workbench and operating.

[0037] Figure 6 It is the wire snapping mechanism (i.e., the second wire snapping mechanism) of the horizontal unit of the device of the present invention, describing the process of the horizontal unit lifting the wire harness.

[0038] Figure 7 It is the wire snapping mechanism (i.e., the first wire snapping mechanism) of the vertical unit of the device of the present invention, describing the process of the vertical unit lifting the wire harness.

[0039] Figure 8 It is the wire snapping structure of the vertical unit of the device of the present invention.

[0040] In the figure, the reference numerals are: 001 wire, 002 heat shrinkable tube, 003 wire harness, 101 vertical unit, 102 horizontal unit, 103 bundled wire harness, 104 bundling point, 105 wire harness to be heat shrunk, 106 heat-shrunk wire harness, 107 first wire snapping mechanism, 108 workbench, 109 second heating element, 110 second wire separating rod, 111 first jaw, 112 second jaw, 113 first heating element, 114 wire snapping mechanism frame, 115 first wire separating rod, 123 second wire snapping mechanism, 116 is Figure 3 The trajectory of feeding the wire harness 105 to be heat shrunk into the upper heating area, 117 is Figure 3 The trajectory of feeding the wire harness 105 to be heat shrunk into the lower heating area, 118 is Figure 3 The trajectory of the heat-shrunk wire harness 106 falling after being heat shrunk in the upper heating area, 119 is Figure 4 The trajectory of feeding the wire harness 105 to be heat shrunk into the heating area of the vertical unit 101, 120 is Figure 4 The trajectory of feeding the wire harness 105 to be heat shrunk into the heating area of the horizontal unit 102, 121 is Figure 4 The trajectory of the heat-shrunk wire harness 106 from the heating area of the vertical unit 101 to the wire dropping area, 122 is Figure 4 The trajectory of the heat-shrunk wire harness 106 from the heating area of the horizontal unit 102 to the wire dropping area, 123 is the second wire snapping mechanism. Detailed implementation manners

[0041] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following provides a detailed description of the specific embodiments of the present invention with reference to the accompanying drawings. A lot of specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below. The technical features in various embodiments of the present invention can be combined correspondingly without conflict.

[0042] In the description of the present invention, it should be understood that when an element is considered to be "connected" to another element, it can be directly connected to the other element or indirectly connected, i.e., there is an intermediate element. On the contrary, when an element is referred to as being "directly" connected to another element, there is no intermediate element.

[0043] In the description of the present invention, it should be understood that the terms "first" and "second" are only used for the purpose of distinguishing descriptions and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features.

[0044] In the present invention, for the convenience of description, the "left", "right", "up", and "down" directions shown in Figure 4 are used as the reference to illustrate the positional relationship of each component in the device of the present invention. For the "front" and "rear" of the horizontal unit, they respectively refer to Figure 4 the left side and the right side in

[0045] i.e., the side adjacent to the wire dropping area is the "front", and the side far from the wire dropping area is the "rear". Without special instructions, the positional relationship of the present invention is described according to this. Figure 1 As shown in

[0046] a structural schematic description diagram of the wire harness 003. One or several wires 001 are connected together through processes such as wire stripping, welding, and riveting, and then the heat shrinkable tube 002 is used to heat shrink and cover its connection points to achieve purposes such as insulation and waterproofing, thereby forming a wire harness 003. Usually, 50 or 100 such wire harnesses are bundled together, and both ends of the connection points are tied (i.e., the tying points 104), and the whole is used as the bundled wire harness 103 for transfer. For distinction, the wire harness 003 is divided into the to-be-heat-shrunk wire harness 105 and the heat-shrunk wire harness 106.

[0047] a. The selection of heat shrinkage methods for heat shrinkable tubes 002 in the prior art mainly includes: flow-through type and residence type. Among them, the flow-through type is like the heat shrinkage method b in the background art, that is, the flow-through type requires the wire harness 003 to flow through a heating area of a certain length, which will naturally pull the wire harness 003 from the initial position to a relatively far place. This has been verified in the actual production activities of wire harness manufacturers and cannot meet the requirement of wire harness manufacturers not to untie the bundling 104 on both sides of the connection part of the bundled wire harness 103; while the residence type is like the heat shrinkage method c in the background art, where the wire harness 104 is fixed at a specified position to complete the heat shrinkage of the heat shrinkable tube 002 without pulling on the wire harness 003; however, the production beat of the residence type is relatively slow and cannot keep up with the beat of the worker's operation; therefore, there is room for designing other structures and methods to improve efficiency based on the residence type heat shrinkage.

[0048] b. Based on the residence type heat shrinkage, find solutions to improve efficiency by changing the structure and method. In the actual production activities of wire harness production factories, by increasing the temperature of the heating area to shorten the time required for heat shrinkage to improve heat shrinkage efficiency, this solution can only shorten the heat shrinkage time limitedly and cannot solve the above-mentioned beat mismatch problem. At the same time, it leads to the situation that the wire harness skin at both ends of the heat shrinkable tube is damaged by baking, which is unacceptable to wire harness production factories. Therefore, consider the solution of a module with multiple heating areas. The modules with multiple heating areas take turns to perform heat shrinkage, so that the heat shrinkage efficiency can be increased several times.

[0049] c. The increase in the heating area necessarily requires more space; to match the time for workers to center the heat shrinkable tube on the wire harness and place it in the heating area, through time measurement in production practice, the structure of a dual-module heating area is the best solution.

[0050] As Figure 2 shown, it is the basic structure of a residence type heat shrinkable tube machine in the current prior art: there is only one module of a horizontally arranged heating area. On this basis, add a module of a horizontally arranged heating area above the original horizontally arranged heating area. The basic structure is shown in Figure 3 . As shown in the figure, the trajectory 116 is the trajectory for delivering the wire harness 105 to be heat shrunk into the upper heating area, the trajectory 117 is the trajectory for delivering the wire harness 105 to be heat shrunk into the lower heating area, and the trajectory 118 is the trajectory for the heat shrunk wire harness 106 to fall after being heat shrunk in the upper heating area. Among them, the trajectories 117 and 118 intersect, which means there is a problem of mutual interference in the actual working process, which will affect the operation of workers and is unacceptable.

[0051] d. Thus, for the arrangement of the double-module heating area, it is necessary to select the optimal structural form, which leads to the following technical problems: to avoid pulling on the wire harness, the distance between the two heating areas should be as small as possible and arranged near the front end of the equipment; an automatic wire dropping method should be adopted to avoid wasting time for workers to pick up the wire; the wire threading and dropping of the two heating areas should not interfere with each other; the wire dropping area after heat shrinkage should be isolated from the wire feeding area that has not yet been heat shrunk and should not interfere with each other.

[0052] Based on the above technical problems, the present invention provides a heat shrinkable tube heat shrinking device for improving the heat shrinkage efficiency of multiple modules, which mainly includes a vertical unit 101 and a horizontal unit 102 fixed on a workbench 108. As Figure 4 shown, on the basis of a horizontally arranged heating area in the prior art, a vertically arranged heating area is added. Here, the horizontally arranged heating area is named the horizontal unit 102, and the vertically arranged heating area is named the vertical unit 101; as Figure 4 shown, the wire harness 105 to be heat shrunk is placed on the left side of the vertical unit 101, and the heat-shrunk wire harness 106 automatically drops between the vertical unit 101 and the horizontal unit 102.

[0053] The vertical unit 101 and the horizontal unit 102 cooperate with each other to achieve the function of improving the efficiency during the heat shrinkage process of the heat shrinkable tube. The cooperation process will be described below.

[0054] In the device of the present invention, as Figure 7 and 8 shown, the vertical unit 101 mainly includes a first jaw 111, a first heating element 113, and a first wire springing mechanism 107. Among them, the first jaw 111 is used to clamp the wire harness 003, the first heating element 113 is used to heat the wire harness 003 in the first jaw 111, and the first wire springing mechanism 107 is used to move the heated wire harness 003 upward and can deflect it to the wire dropping area to one side.

[0055] In the device of the present invention, as Figure 6 shown, the horizontal unit 102 mainly includes a second jaw 112, a second heating element 109, and a second wire springing mechanism 123. Among them, the second jaw 112 is used to clamp the wire harness 003, the second heating element 109 is used to heat the wire harness 003 in the second jaw 112, and the second wire springing mechanism 123 is used to deflect the heated wire harness 003 to the wire dropping area to one side.

[0056] In the device of the present invention, the wire dropping area is located between the vertical unit 101 and the horizontal unit 102, and the feeding trajectory of the wire harness 105 to be heat shrunk and the throwing trajectory of the heat-shrunk wire harness 106 in the vertical unit 101 and the horizontal unit 102 do not affect each other. Specifically, as Figure 4As shown, the wire harness 105 to be heat-shrunk and the heat-shrunk wire harness 106 are arranged in two independent areas without interfering with each other; the trajectory 119 is the trajectory for the wire harness 105 to be heat-shrunk to enter the heating area of the vertical unit 101, the trajectory 120 is the trajectory for the wire harness 105 to be heat-shrunk to enter the heating area of the horizontal unit 102, the trajectory 121 is the trajectory for the heat-shrunk wire harness 106 to move from the heating area of the vertical unit 101 to the wire dropping area, and the trajectory 122 is the trajectory for the heat-shrunk wire harness 106 to move from the heating area of the horizontal unit 102 to the wire dropping area. The four trajectories are independent of each other without intersection and will not interfere during the actual working process.

[0057] During actual use, on the premise of not affecting the heat-shrunk wire harness 106 from falling into the wire dropping area, a relatively small value of L should be obtained; for further optimization, the component sizes within the width range of M should be compressed as much as possible to obtain the minimum value of M; further combined with practical verification, on the condition that the bundling 104 at both ends of the bundled wire harness 103 does not need to be untied and the heat shrinking of each wire 003 can be carried out in the two heating areas, the values of L and M are appropriately adjusted to obtain the best structural layout. As Figure 5 shown, a preferred structure of the device of the present invention is as follows: The device is placed in the middle of the workbench 108, and the device tabletop is flush with the tabletop of the workbench 108; the wire harness 105 to be heat-shrunk is placed at the front end of the tabletop of the workbench 108, and the worker straightens the heat-shrinkable tube to the connection point position of the wire 003 one by one and puts it into the heating area for heat shrinking.

[0058] As a preferred embodiment of the present invention, the structure of the vertical unit 101 is specifically as follows:

[0059] The first clamping jaw 111 is installed on the first clamping jaw frame, and a first groove is vertically opened at the top of the first clamping jaw frame. The size of the first groove should be large enough to accommodate the wire 003. The first clamping jaw 111 is located on both sides of the bottom of the first groove and can clamp the wire 003 falling to the bottom of the first groove. The initial position of the first heating element 113 is below the first clamping jaw 111 and can move upward to the position of the first clamping jaw 111 under the drive of a power source. The first heating element 113 includes two sector-shaped heating sheets, and the two heating sheets can be separated or closed into a ring through a hinge rod, and the size at the closed ring should be large enough to accommodate the wire 003, so as to heat and shrink the heat-shrinkable tube 002 through the two heating sheets. The first wire ejecting mechanism 107 mainly includes a wire ejecting mechanism frame 114 and a first wire deflecting rod 115. As Figure 7 shown, the wire ejecting mechanism frame 114 can move up and down in the vertical direction under the drive of a power source, and a horizontal first wire deflecting rod 115 is installed at the top. As Figure 8As shown, the initial position of the first wire deflecting rod 115 is below the bottom of the first groove. One end of the first wire deflecting rod 115 is rotatably connected to the wire deflecting mechanism frame 114, and the first wire deflecting rod 115 can rotate about this connection point as the axis. The first wire deflecting rod 115 can push the wire harness 003 upward to move out of the first groove, and throw the wire harness 003 into the wire dropping area by rotating around the axis.

[0060] As a relatively preferred embodiment of the present invention, the structure of the horizontal unit 102 is specifically as follows:

[0061] The second clamping jaw 112 is installed on the second clamping jaw holder. A second groove is horizontally opened beside the second clamping jaw holder (as Figure 6 shown, on the left side in this embodiment). The size of the second groove should be large enough to accommodate the wire harness 003. The second clamping jaw 112 is located on both sides of the bottom of the second groove and can clamp the wire harness 003 entering the second groove. The initial position of the second heating element 109 is behind the second clamping jaw 112 (as Figure 4 shown, on the right side in this embodiment) and can move forward (to the left in this embodiment) to the second clamping jaw 112 under the drive of the power source. The second heating element 109 includes two fan-shaped heating sheets. The two heating sheets can be separated or closed into a ring through a hinge rod, and the wire harness 003 can be accommodated at the closed ring, and then the heat shrinkable tube 002 is heated and shrunk by the two heating sheets. The second wire deflecting mechanism 123 mainly includes a second wire deflecting rod 110. The second wire deflecting rod 110 is horizontally arranged and its initial position is below the second groove. One end of the second wire deflecting rod 110 is rotatably connected to the workbench 108, and the second wire deflecting rod 110 can rotate about this connection point as the axis. The second wire deflecting rod 110 can throw the wire harness 003 into the wire dropping area by rotating.

[0062] Using the above heat shrinkable tube heat shrinking equipment with multiple modules to improve the heat shrinkage efficiency, the present invention also provides a heating method, and the heating method is specifically as follows:

[0063] Place the wire harness 105 to be heat shrunk at the front end of the workbench 108 tabletop, straighten the heat shrinkable tube 002 to the connection point position of the wire 001, and then sequentially and cyclically place it into the first groove of the vertical unit 101 and the second groove of the horizontal unit 102 for heat shrinking. When the wire harness 105 to be heat shrunk is clamped by the first clamping jaw 111 or the second clamping jaw 112, the heating work of the next wire harness 105 to be heat shrunk can be carried out.

[0064] When the heat shrink tube 002 is placed into the first groove of the vertical unit 101, the first clamping jaw 111 clamps the wire harness 003. The two heating plates of the first heating element 113 open and move upward, close at the position of the wire harness 003, and start heat shrinking the heat shrink tube 002 on the wire 001. After the heat shrinking time ends, the two heating plates of the first heating element 113 open, move downward to the original position and then close, and the first clamping jaw 111 releases the heat shrunk wire harness 106. The wire ejecting mechanism frame 114 of the first wire ejecting mechanism 107 moves upward in the vertical direction under the drive of the power source, drives the first wire deflecting rod 115 to push the wire harness 003 upward to move out of the first groove. Subsequently, the first wire deflecting rod 115 rotates around the connection point by a certain angle under the drive of the power source, and throws the heat shrunk wire harness 106 into the wire dropping area. Then, the wire ejecting mechanism frame 114 and the first wire deflecting rod 115 of the first wire ejecting mechanism 107 return to the original position.

[0065] When the heat shrink tube 002 is placed into the second groove of the horizontal unit 102, the second clamping jaw 112 clamps the wire harness 003. The two heating plates of the second heating element 109 open and move towards the second clamping jaw 112, close at the position of the wire harness 003, and start heat shrinking the heat shrink tube 002 on the wire 001. After the heat shrinking time ends, the two heating plates of the second heating element 109 open, move to the side and then close to the original position, and the second clamping jaw 112 releases the heat shrunk wire harness 106. The second wire deflecting rod 110 of the second wire ejecting mechanism 123 rotates around the connection point by a certain angle under the drive of the power source, and throws the heat shrunk wire harness 106 into the wire dropping area. Then, the second wire deflecting rod 110 rotates and returns to the original position.

[0066] In this embodiment, the heating method is specifically as follows:

[0067] As Figure 5 shown, the device lands in the middle of the workbench 108, and the device tabletop is flush with the workbench 108 tabletop. The wire harness 105 to be heat shrunk is placed at the front end of the workbench 108 tabletop. The worker straightens each heat shrink tube to the connection point position of the wire harness 003 and puts it into the heating area for heat shrinking.

[0068] For example, if it is first placed into the heating area of the vertical unit 101, the first clamping jaw 111 of the vertical unit 101 will first clamp the wire harness 003. The first heating element 113 of the vertical unit 101 opens, moves upward, closes at the position of the wire harness 003, and starts heat shrinking the heat shrink tube 002 on the wire harness 003. The device will heat shrink the heat shrink tube 002 according to the set time. After the heat shrinking time ends, the first heating element 113 of the vertical unit 101 first opens, returns downward to the original position and then closes. The first clamping jaw 111 of the vertical unit 101 releases the heat shrunk wire harness 106. The first wire ejecting mechanism 107 of the vertical unit 101 is as Figure 7As shown by the arrow, first lift the heat-shrunk wire harness 106. The first wire-pulling rod 115 of the vertical unit 101 flips as shown by the circular arc arrow in Figure 8 and pulls the heat-shrunk wire harness 106 into the area where heat shrinking is completed. After these operations, the first wire-elasticating mechanism 107 of the vertical unit 101 resets. So far, one working process of the vertical unit 102 is completed, and wait for the subsequent wire harness to be put in for heat shrinking.

[0069] Continuing from the previous paragraph, when the heat-shrunk wire harness 105 is placed in the heating area of the vertical unit 101, the first gripper 111 of the vertical unit 101 will clamp the heat-shrunk wire harness 105. Then the worker can operate the next heat-shrunk wire harness 105. Smooth the heat-shrinkable tube on the heat-shrunk wire harness 105 to the connection point of the wire harness and place it in the heating area of the horizontal unit 102. The second gripper 112 of the horizontal unit 102 will clamp the heat-shrunk wire harness 105. The second heating element 109 of the horizontal unit 102 opens and moves forward. When it reaches the position of the heat-shrunk wire harness 105, it closes and starts to heat-shrink the heat-shrinkable tube 002 on the wire harness 003. The device will heat-shrink the heat-shrinkable tube 003 according to the set time. When the heat-shrinking time ends, the second heating element 109 of the horizontal unit 102 first opens, moves back to the original position and then closes. The second gripper 112 of the horizontal unit 102 releases the heat-shrunk wire harness 106. The second wire-pulling rod 110 of the horizontal unit 102 is as shown by the circular arc arrow in Figure 6 and pulls the heat-shrunk wire harness 106 into the wire-drop area. Then the second wire-pulling rod 110 of the horizontal unit 102 resets immediately. So far, one working process of the horizontal unit 102 is completed, and wait for the subsequent heat-shrunk wire harness 105 to be put in for heat shrinking.

[0070] The working processes of the above vertical unit 101 and horizontal unit 102 are carried out alternately. After the heat-shrunk wire harness 105 is clamped by the first gripper 111 or the second gripper 112, the work on the next heat-shrunk wire harness 105 can be carried out.

[0071] As shown in Figure 6 , the wire-pulling mode of the horizontal unit 102 is as follows: after the heat shrinking is completed and the second gripper 112 of the horizontal unit 102 opens to release the heat-shrunk wire harness 106, the second wire-pulling rod 110 of the horizontal unit 102 will rotate a certain angle and pull the heat-shrunk wire harness 106 from the heating area of the horizontal unit 102 into the wire-drop area, so as to realize pulling the heat-shrunk wire harness 106 from the heating area of the horizontal unit 102 into the wire-drop area. After this operation, the second wire-pulling rod 110 of the horizontal unit 102 resets immediately.

[0072] As shown in Figure 7As shown, there is a certain height difference when the heat-shrinkable wire harness 105 to be heat-shrunk enters the heating area of the vertical unit 101. In order for the heat-shrunk wire harness 106 to smoothly cross this height from the heating area of the vertical unit 101 and successfully fall into the wire dropping area, the first wire bouncing mechanism 107 of the vertical unit 101 is optimized as shown in Figure 8 and Figure 7 . The wire bouncing mechanism frame 114 of the first wire bouncing mechanism 107 will lift the heat-shrunk wire harness 106 by a certain height. Then, the first wire deflecting rod 115 of the vertical unit 101 will flip and deflect the heat-shrunk wire harness 106 towards the wire dropping area. The heat-shrunk wire harness 106 will fall into the wire dropping area under the action of gravity, thereby realizing deflecting the heat-shrunk wire harness 106 from the heating area of the vertical unit 101 to the wire dropping area. After completing this series of actions, the first wire bouncing mechanism 107 of the vertical unit 101 will immediately reset.

[0073] The above-described embodiments are only a preferred solution of the present invention, but they are not intended to limit the present invention. Those of ordinary skill in the relevant technical field can still make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all technical solutions obtained by means of equivalent substitution or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A multi-module heat shrink tube heat shrink device for improving heat shrink efficiency, characterized in that: It comprises a vertical unit (101) and a horizontal unit (102) fixed on a workbench (108); The vertical unit (101) comprises a first clamping jaw (111) for clamping the wire harness (003), a first heating element (113) for heating the wire harness (003) in the first clamping jaw (111), and a first wire elastic mechanism (107) for moving the heated wire harness (003) upward and to one side to a wire drop area; The horizontal unit (102) comprises a second clamping jaw (112) for clamping the wire harness (003), a second heating element (109) for heating the wire harness (003) in the second clamping jaw (112), and a second wire elastic mechanism (123) for moving the heated wire harness (003) to one side to a wire drop area; The wire drop area is located between the vertical unit (101) and the horizontal unit (102), and the delivery trajectory of the to-be-heat-shrunk wire bundle (105) and the ejection trajectory of the heat-shrunk wire bundle (106) in the vertical unit (101) and the horizontal unit (102) do not affect each other.

2. A multi-module heat shrink tube heat shrink device for improving heat shrink efficiency according to claim 1, characterized in that: The first clamping jaw (111) is installed on a first clamping jaw frame, and a first groove for placing the wiring harness (003) is vertically opened on the top of the first clamping jaw frame; the first clamping jaw (111) is located on both sides of the bottom of the first groove and is used to clamp the wiring harness (003) falling into the first groove.

3. The heat shrinking device for heat shrinking tubes with multi-modules for improving heat shrinking efficiency according to claim 2, characterized in that: The first heating element (113) is initially located below the first clamp (111) and can be moved to the first clamp (111) under the drive of a power source; the first heating element (113) comprises two fan-shaped heating plates, which can be separated or closed into a ring shape by a hinge rod, and the closed ring shape can accommodate a wiring harness (003) to heat the heat shrink tube (002).

4. The heat shrinking device for heat shrinking tubes with multi-modules for improving heat shrinking efficiency according to claim 3, characterized in that: The first wire-elasticating mechanism (107) comprises a wire-elasticating mechanism frame (114) and a first wire-moving rod (115); the wire-elasticating mechanism frame (114) can move up and down in a vertical direction under the drive of a power source, and a horizontal first wire-moving rod (115) is installed on the top; the first wire-moving rod (115) is initially located below the bottom of the first groove, and one end is rotatably connected to the wire-elasticating mechanism frame (114); the first wire-moving rod (115) can push the wire harness (003) to move upward out of the first groove, and throw the wire harness (003) into a wire-dropping area by rotating.

5. The heat shrinking device for heat shrinking tubes with multiple modules for improving heat shrinking efficiency according to claim 1, characterized in that: The second clamping jaw (112) is installed on a second clamping jaw frame, and a second groove for placing the wiring harness (003) is horizontally opened on the side of the second clamping jaw frame; the second clamping jaw (112) is located on both sides of the bottom of the second groove and is used to clamp the wiring harness (003) entering the second groove.

6. A multi-module heat shrink tube heat shrink device for improving heat shrink efficiency according to claim 5, characterized in that: The initial position of the second heating element (109) is located behind the second clamp (112), and can be moved forward to the second clamp (112) under the drive of a power source; the second heating element (109) includes two fan-shaped heating plates, and the two heating plates can be separated or closed into a ring through a hinge rod, and the closed ring can accommodate a wiring harness (003) to heat the heat shrink tube (002).

7. A multi-module heat shrink tube heat shrink device for improving heat shrink efficiency according to claim 6, characterized in that: The second wire-elasticating mechanism (123) comprises a second wire-elasticating rod (110); the second wire-elasticating rod (110) is horizontally arranged and initially located below the second groove, one end of which is rotatably connected to the workbench (108); the second wire-elasticating rod (110) can throw the wire harness (003) into the wire-dropping area by rotating.

8. The heat shrinking device for heat shrinking tubes with multiple modules for improving heat shrinking efficiency according to claim 1, characterized in that: The vertical unit (101) is located at the lower left of the line-falling area, and the horizontal unit (102) is located at the right side of the line-falling area.

9. A heating method for a heat shrink tube heat shrink device using the multi-module according to any one of claims 1 to 8 to improve heat shrink efficiency, characterized in that: The details are as follows: The wire harness (105) to be heat shrunk is placed at the front end of the workbench (108), the heat shrink tube (002) is rolled to the connection point of the wire (001), and then placed in the first groove of the vertical unit (101) and the second groove of the horizontal unit (102) in turn for heat shrinkage; when the wire harness (105) to be heat shrunk is clamped on the first clamp (111) or the second clamp (112), the next wire harness (105) to be heat shrunk can be heated; When the heat shrink tube (002) is placed in the first groove of the vertical unit (101), the first clamp (111) clamps the wire harness (003); the two heating plates of the first heating element (113) open and move upward, and close at the position of the wire harness (003), and start to heat shrink the heat shrink tube (002) on the wire (001); after the heat shrinking time is over, the two heating plates of the first heating element (113) open and move downward to the original position and then close, and the first clamp (111) is released to release the heat-shrinked wire harness (103). 6); the elastic wire mechanism frame (114) of the first elastic wire mechanism (107) moves upward in the vertical direction under the drive of the power source, driving the first wire-moving rod (115) to push the wire harness (003) upward to move out of the first groove; the first wire-moving rod (115) then rotates around the axis along the connection point and rotates a certain angle under the drive of the power source, throwing the heat-shrunk wire harness (106) into the wire-dropping area; then, the elastic wire mechanism frame (114) of the first elastic wire mechanism (107) and the first wire-moving rod (115) return to their original positions; When the heat shrink tube (002) is placed in the second groove of the horizontal unit (102), the second clamp (112) clamps the wire harness (003); the two heating plates of the second heating element (109) open and move in the direction close to the second clamp (112), close when reaching the position of the wire harness (003), and start to shrink the heat shrink tube (002) on the wire (001); after the shrinking time is over, the two heating plates of the second heating element (109) open and move sideways to the original position and then close, and the second clamp (112) is released to release the heat-shrinkable wire harness (106); the second wire-moving rod (110) of the second wire-elastic mechanism (123) rotates around the axis and rotates a certain angle along the connection point under the drive of the power source, and throws the heat-shrinkable wire harness (106) into the wire-dropping area; then, the second wire-moving rod (110) rotates and returns to its original position.

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