A kind of label penetrating tube mechanism suitable for laser coding

Abstract

A kind of wear identification pipe mechanism suitable for laser coding, including conveying assembly and blowing assembly;Conveying assembly includes first connecting seat and the first connecting seat on the conveying roller and first conduit arranged, the output direction of conveying roller is towards the axial direction of first conduit, the position between the both ends of first conduit is provided with upward opening, the output end of first conduit has the limiting ring along its circumferential direction;Blowing assembly includes first connecting piece and blowing device, one end of first connecting piece is fixed, blowing device is fixedly connected to the other end of first connecting piece, and the air outlet surface of blowing device is towards first conduit.Compared with prior art, the blowing device of the present wear identification pipe mechanism can supply air during laser engraving process, blow away the molten plastic and smoke generated during laser engraving process, significantly reduce the phenomenon that it re-attaches to heat shrink tube, especially in the notch area, improve the quality of laser engraving.

Description

Technical Field

[0001] This utility model pertains to marking tube insertion mechanisms, specifically relating to a marking tube insertion mechanism suitable for laser marking. Background Technology

[0002] In the field of wire harness manufacturing, to facilitate user identification of connection nodes, markings (such as model numbers, serial numbers, etc.) are usually laser-engraved on the surface of heat shrink tubing. In existing technologies, the laser engraving process for heat shrink tubing is mostly completed using a fixed laser marking machine. The specific process is as follows: the heat shrink tubing is conveyed to the laser engraving station via a conveyor assembly, and the laser beam ablates the outer wall of the tubing according to a preset program to form the marking pattern. After the marking pattern is engraved on the heat shrink tubing, it is usually necessary to cut off the engraved pattern, then fit it onto the wire harness, and finally bake it to fix the heat shrink tubing onto the wire harness. For example, the "fully automatic laser marking and numbering tube insertion device" disclosed in publication number CN108436280A can laser engrave on heat shrink tubing, while simultaneously achieving the functions of cutting and fitting the heat shrink tubing.

[0003] During laser ablation, the surface material of the heat shrink tubing does not completely vaporize after melting at high temperatures, and some of the molten plastic will re-adhere to the etched surface. In addition, the smoke generated during laser ablation will also adhere to the surface of the tubing, resulting in blurred markings and reduced marking quality. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a marking tube insertion mechanism suitable for laser marking.

[0005] To achieve the above objectives, this utility model discloses a marking tube insertion mechanism suitable for laser marking, including a conveying component and a blowing component; The conveying assembly includes a first connecting seat, a conveying roller and a first conduit disposed on the first connecting seat, the output direction of the conveying roller is oriented toward the axial direction of the first conduit, an upward opening is provided between the two ends of the first conduit, and the output end of the first conduit has a limiting ring disposed along its circumference; The blower assembly includes a first connector and a blower device. One end of the first connector is fixed, and the blower device is fixedly connected to the other end of the first connector. The air outlet surface of the blower device faces the first duct.

[0006] Preferably, the limiting ring has a sheet-like structure.

[0007] Preferably, the blowing device is offset from the opening in the axial direction of the first conduit.

[0008] Preferably, the other end of the first connector is provided with a first through hole, and the air outlet surface of the blower faces the first through hole.

[0009] Preferably, it further includes a second conduit, which is arranged in the same direction as the first conduit and is located on the side of the conveying roller away from the first conduit.

[0010] Preferably, the inlet ends of the first and second catheters gradually increase in diameter outwards.

[0011] Preferably, the first connecting seat is provided with a pressure tube assembly, which is located on the side of the second guide tube away from the conveying roller; the pressure tube assembly includes a pressure strip, one end of which is movably connected, and the other end of which is used to press against the heat shrink tubing.

[0012] Preferably, the pressure tube assembly further includes a second connecting seat, which is fixedly connected to the first connecting seat, and one end of the pressure strip is rotatably connected to the second connecting seat.

[0013] Preferably, the other end of the pressure strip is suspended in the air.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: A blower assembly is provided, comprising a first connector and a blower device. The blower device is connected and fixed to the first connector and faces the first guide tube. After the heat shrink tubing passes through the first guide tube, it is partially exposed through an opening, allowing the laser to engrave on the heat shrink tubing. The blower device delivers air during the laser engraving process, dispersing the molten plastic and smoke generated during laser engraving, significantly reducing the re-adhesion of these substances onto the heat shrink tubing, especially in the engraved area, thus improving the quality of the laser engraving.

[0015] The output end of the first conduit has a limiting ring arranged circumferentially. The front end of the heat shrink tubing can be fed into the limiting ring and locked inside the limiting ring. In this way, both ends of the heat shrink tubing are fixed, and only the middle opening is exposed. The heat shrink tubing can also remain stable after the air blowing device blows air, avoiding the heat shrink tubing from shaking during the engraving process and improving the quality of laser engraving. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the marking tube insertion mechanism suitable for laser marking in the embodiment; Figure 2 for Figure 1 The portion at point A in the diagram is shown below; Figure 3 for Figure 1 A top view of a marking tube mechanism suitable for laser marking; Figure 4 This is a three-dimensional exploded view of the conveying assembly and the pressure tube assembly; Conveying assembly 100; first connecting seat 110; conveying roller 120; first guide tube 130; opening 131; limiting ring 132; Blower assembly 200; first connector 210; blower device 220; Second catheter 300; Pressure tube assembly 400; Pressure strip 410; Second connecting seat 420; Cutting component 500; Fifth connecting seat 510; Cutter 520; Transfer assembly 600; third connector 610; linear module 620; fourth connector 630; first gripper 640; Clamping component 700; second gripper 710. Detailed Implementation

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] A marking tube insertion mechanism suitable for laser marking, see [link / reference] Figures 1-4 The system includes a conveying assembly 100 and a blowing assembly 200. The marking tube is a segment formed by cutting heat shrink tubing after laser engraving; the unengraved segment is simply heat shrink tubing. Currently, heat shrink tubing is produced in rolls. The conveying assembly 100 transports the unwound heat shrink tubing to the laser engraving position for laser engraving, then cuts off the engraved segment and attaches it to the wire harness.

[0019] The conveying assembly 100 includes a first connecting seat 110 and conveying rollers 120 and a first conduit 130 disposed on the first connecting seat 110. The conveying rollers 120 adopt a conventional roller structure; in this embodiment, there are two rollers positioned opposite each other. The output direction formed by the two rollers is towards the axial direction of the first conduit 130, specifically towards the inside of the first conduit 130. The heat shrink tubing can be fed into the first conduit 130 under the action of the two rollers. An upward-facing opening 131 is provided between the two ends of the first conduit 130, and the output end of the first conduit 130 has a limiting ring 132 arranged circumferentially thereafter. After the heat shrink tubing is fed into the first conduit 130, when the front end of the heat shrink tubing (with the output end side of the first conduit 130 as the front and the input end side of the first conduit 130 as the rear) is stuck in the limiting ring 132, the conveying rollers 120 stop conveying, and the heat shrink tubing portion inside the first conduit 130 is exposed through the opening 131, so that a pattern can be ablated on the heat shrink tubing by a laser marking machine.

[0020] The air blowing assembly 200 includes a first connector 210 and an air blowing device 220. One end of the first connector 210 is fixed, specifically fixed to a first connecting seat. The air blowing device 220 can be a conventional fan, which is fixedly connected to the other end of the first connector 210. The air outlet of the air blowing device 220 faces the first duct 130. During the laser marking process, the air blowing device 220 blows air into the first duct 130, which disperses the molten plastic and smoke generated during laser engraving, significantly reducing the phenomenon of re-adhesion onto the heat shrink tubing, especially the engraved area, and improving the quality of laser engraving. Due to the setting of the limiting ring 132, the front end of the heat shrink tubing can be conveyed into the limiting ring 132 and locked inside the limiting ring 132. In this way, both ends of the heat shrink tubing are fixed, with only the middle opening 131 protruding. After the air blowing device 220 blows air, the heat shrink tubing can also remain stable, avoiding vibration of the heat shrink tubing during the engraving process and improving the quality of laser engraving.

[0021] The first conduit 130 was originally a complete tube with both ends connected. A small piece was cut off from its side wall to form the opening 131 and the limiting ring 132.

[0022] The limiting ring 132 has a sheet-like structure, and its end face is part of the end face of the output end of the first conduit 130. Because the sheet-like limiting ring 132 is thin, only a small section of the heat-shrink tubing is held within it. Combined with the length of the opening 131, this forms the minimum length of the marking tube. If the length of the marking tube needs to be increased, simply continue feeding the heat-shrink tubing until it reaches the designated position. In other words, the sheet-like limiting ring 132 can process marking tubes of a wider range of lengths, making it highly versatile.

[0023] In the axial direction of the first conduit 130, the air blowing device 220 is staggered from the opening 131. This can prevent the air blowing device from blowing directly onto the heat shrink tubing at the opening 131, further reducing vibration and improving the engraving quality.

[0024] The first connecting member 210 is a bent plate structure, including a vertical plate and an inclined plate, with the inclined plate facing downwards toward the opening 131 of the first conduit 130. A through hole is provided on the inclined plate, and a blower 220 is installed on the side of the plate away from the first conduit 130, with the air outlet of the blower 220 facing the first through hole. The blower 220 is installed on the side away from the first conduit 130, which is equivalent to an outer position, facilitating later maintenance.

[0025] Currently, existing laser marking machines generally use vertical downward laser engraving on heat shrink tubing. To avoid the blower assembly 200 blocking the laser beam, the blower assembly 200 and the first beam do not overlap in the direction of the top-view projection.

[0026] In this embodiment, the marking tube insertion mechanism also includes a second conduit 300, which is arranged in the same direction as the first conduit 130. The second conduit 300 is located on the side of the conveying roller 120 away from the first conduit 130, that is, the second conduit 300 is further arranged on the input end side of the conveying roller 120. This allows the heat shrink tubing to be input into the conveying roller 120 in a straight line, so that the conveying roller 120 can convey smoothly.

[0027] The inlet ends of the first conduit 130 and the second conduit 300 gradually widen outward to form a flared opening, which facilitates the insertion of the heat shrink tubing into the two conduits. Both the first conduit 130 and the second conduit 300 are fixed to the first connecting seat by a connecting block.

[0028] In this embodiment, a pressure tube assembly 400 is provided on the first connecting seat 110. The pressure tube assembly 400 is located on the side of the second guide tube 300 away from the conveying roller 120. Finally, the pressure tube assembly 400, the second guide tube 300, the conveying roller 120, and the first guide tube 130 are arranged in sequence. The pressure tube assembly 400 includes a pressure strip 410, one end of which is movably connected, and the other end of which is used to press against the heat shrink tubing. By pressing against the heat shrink tubing with the pressure strip 410, the resistance during the input of the heat shrink tubing is increased, which can improve the stability of the heat shrink tubing roll unwinding process.

[0029] The heat shrink tubing assembly 400 further includes a second connecting seat 420, which is fixedly connected to the first connecting seat 110. The second connecting seat 420 is an upward-facing U-shaped seat with a through hole for the heat shrink tubing to pass through. A pressure strip 410 is disposed inside the U-shaped seat, with one end rotatably connected to the inner wall of the U-shaped seat and the other end pressing against the heat shrink tubing.

[0030] The weight of the pressure strip 410 is configured so that it will not completely crush the heat shrink tubing, but will only partially deform the heat shrink tubing, so that the other end of the pressure strip 410 is supported and suspended in the air by the heat shrink tubing. In other words, the other end of the pressure strip 410 presses against the heat shrink tubing by its own weight.

[0031] In this embodiment, the marking tube insertion mechanism also includes a cutting component 500, a transfer component 600, a clamping component 700, and a laser marking machine (not shown in the figure).

[0032] The transfer assembly 600 includes a third connecting seat 610, a linear module 620, a fourth connecting seat 630, and a first gripper 640. The third connecting seat 610 can be mounted on a workbench. The linear module 620 can be a motor and lead screw nut structure, which moves back and forth along the axial direction of the first guide tube 130. The fourth connecting seat 630 is connected to the linear module 620, and the first gripper 640 is connected to the fourth connecting seat 630. Under operating conditions, the linear module 620 drives the first gripper 640 to move back and forth through the fourth connecting seat 630.

[0033] The cutting assembly 500 includes a fifth connector 510 and a cutter 520 mounted on the fifth connector 510. The cutter 520 is located between the first conduit 130 and the transfer assembly 600. After laser marking, the conveyor roller 120 continues to convey the heat shrink tubing, which passes the cutter 520 until it reaches the first gripper 640. When it reaches the designated position, the conveyor roller 120 stops conveying, the first gripper 640 holds the tubing, and then the cutter 520 cuts it to form a marking tube.

[0034] The clamping assembly 700 includes a second jaw 710 fixed to the fifth connector 510, located on the side of the first jaw 640 away from the cutter 520. The second jaw 710 is capable of gripping and fixing the wire harness, and the end of the wire harness can extend out of the second jaw 710. The linear module 620 drives the first jaw 640 to move towards the wire harness to fit the marking tube onto the wire harness.

[0035] The laser marking machine uses existing conventional laser marking devices, which can be set up according to the laser device in CN108436280A, and will not be described in detail here.

[0036] The above description is only a preferred embodiment of the present utility model, and its structure is not limited to the shapes listed above. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A marking tube insertion mechanism suitable for laser marking, characterized in that: Includes conveying components and blowing components; The conveying assembly includes a first connecting seat, a conveying roller and a first conduit disposed on the first connecting seat, the output direction of the conveying roller is oriented toward the axial direction of the first conduit, an upward opening is provided between the two ends of the first conduit, and the output end of the first conduit has a limiting ring disposed along its circumference; The blower assembly includes a first connector and a blower device. One end of the first connector is fixed, and the blower device is fixedly connected to the other end of the first connector. The air outlet surface of the blower device faces the first duct.

2. The marking tube insertion mechanism for laser marking according to claim 1, characterized in that: The limiting ring has a sheet-like structure.

3. The marking tube insertion mechanism for laser marking according to claim 1, characterized in that: In the axial direction of the first conduit, the blowing device is offset from the opening.

4. The marking tube insertion mechanism for laser marking according to claim 1, characterized in that: The other end of the first connector is provided with a first through hole, and the air outlet surface of the blower faces the first through hole.

5. The marking tube insertion mechanism for laser marking according to claim 1, characterized in that: It also includes a second conduit, which is arranged in the same direction as the first conduit and is located on the side of the conveying roller away from the first conduit.

6. The marking tube insertion mechanism for laser marking according to claim 5, characterized in that: The inlet diameters of the first and second catheters gradually increase outward.

7. The marking tube insertion mechanism for laser marking according to claim 5, characterized in that: The first connecting seat is provided with a crimping assembly, which is located on the side of the second guide tube away from the conveying roller; the crimping assembly includes a crimping strip, one end of which is movably connected, and the other end of which is used to press against the heat shrink tubing.

8. The marking tube insertion mechanism for laser marking according to claim 7, characterized in that: The pressure tube assembly further includes a second connecting seat, which is fixedly connected to the first connecting seat, and one end of the pressure strip is rotatably connected to the second connecting seat.

9. The marking tube insertion mechanism for laser marking according to claim 7, characterized in that: The other end of the pressure strip is suspended in the air.

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