Automatic cable tie cutting device

Abstract

The present invention discloses an automatic cable tie cutting device, which is used to cut the cable tie tied on the outer peripheral part of the box body, and includes an automatic cable tie cutting device, wherein the automatic cable tie cutting device includes a claw mechanism for lifting the cable tie and keeping it away from the surface of the box body, a clamping device for clamping the lifted cable tie, and a cutting device for cutting the clamped cable tie, wherein the clamping device has at least two clamping positions along the length direction of the cable tie, and the cutting device has at least a pair of scissors, and the scissors are located between the two clamping positions. The automatic cable tie cutting device has a simple structure, is easy to operate, and has a high degree of automation. It can quickly cut the cable ties on the box body one by one and pull them off the box body, has high work efficiency, reduces the labor intensity of personnel, and the entire operation process is environmentally friendly and pollution-free.

Description

Technical Field

[0001] The invention relates to an automatic cable tie cutting device. Background Art

[0002] After the production of LCD panels is completed, they are usually packed for storage and transportation. The outside of the whole box of LCD panels is usually tied and fixed with cable ties to avoid damage to the LCD panels during transportation. When the whole box of LCD panels needs to be unpacked for assembly, the cable ties need to be cut first. In the prior art, when unpacking the LCD panels, the cable ties are cut mainly by using photoelectric sensors to sense the position of the cable ties and using claws to clamp them. The cutting and tying method uses a saw blade to saw off. In the actual process, the sensing position of the cable ties is often inaccurate, the claws cannot pick up the cable ties, and the saw blade method will generate a lot of dust to pollute the environment and take a long time. Summary of the invention

[0003] The object of the present invention is to provide a novel automatic cable tie cutting device to solve one or more problems of the prior art.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an automatic cable tie cutting device, used for cutting the cable tie tied on the outer periphery of the box body, including an automatic cable tie cutting device, the automatic cable tie cutting device including a claw mechanism for scooping up the cable tie and keeping it away from the surface of the box body, a clamping device for clamping the scooped cable tie, and a cutting device for cutting the clamped cable tie, wherein the clamping device has at least two clamping positions along the length direction of the cable tie, and the cutting device has at least scissors, and the scissors are located between the two clamping positions.

[0005] Preferably, the scooping claw mechanism includes a scooping claw seat, and a shovel blade arranged on the end of the scooping claw seat for shoveling the cable tie onto the scooping claw seat, the shovel blade has a contact surface that can contact the surface of the box body, and a guide surface different from the contact surface, and when the contact surface contacts the surface of the box body, the guide surface is inclined gradually upward toward the scooping claw seat.

[0006] Further preferably, the scraper is rotatably connected to the claw seat around a rotation axis, and an elastic member for providing the elastic force required to drive the scraper to move relative to the claw seat toward the surface of the box body is also provided between the scraper and the claw seat.

[0007] Furthermore, the clamping device includes a clamping seat capable of moving toward or away from the claw seat, and a clamping drive mechanism for driving the clamping seat to move linearly, and the clamping seat and the claw seat are respectively provided in two groups.

[0008] Preferably, the shearing device also includes a mounting seat for installing the scissors, the scissors have a first scissor arm and a second scissor arm which are rotatably connected to each other, the first scissor arm is fixed on the mounting seat, and a scissor driving mechanism is provided between the mounting seat and the second scissor arm for driving the second scissor arm to rotate so as to close or open the second scissor arm relative to the first scissor arm.

[0009] Preferably, the cable tie cutting device further comprises a compression spring sheet capable of being compressed on the cable tie scooped up by the scooping claw mechanism, and an elastic force detector capable of detecting the compression state of the compression spring sheet to determine whether the cable tie is cut.

[0010] Preferably, the cable tie cutting device also includes a detection device for detecting the position of the cable tie on the outer peripheral portion of the box body, and the automatic cable tie cutting equipment also includes a driving device for driving the automatic cable tie cutting device to move as a whole, and the driving device is signal-connected to the detection device and controls the movement of the claw mechanism according to the position information detected by the detection device.

[0011] Further preferably, the detection device includes a camera for scanning and photographing the surface of the box and obtaining an image of the box surface, and an image processor capable of obtaining the position coordinates of the cable tie based on the image of the box surface taken by the camera, and a signal connection is provided between the driving device and the image processor.

[0012] Further preferably, the driving device is a manipulator, the automatic cable tie cutting device has a base fixedly mounted on the manipulator, and the claw mechanism, the clamping device and the cutting device are all mounted on the base.

[0013] Further preferably, the cable tie cutting device further comprises a position sensor for detecting whether the claw mechanism has moved to a position, and a signal connection is provided between the position sensor and the driving device.

[0014] Due to the application of the above technical scheme, the present invention has the following advantages compared with the prior art: the automatic cable tie cutting device of the present invention, wherein the cable tie to be cut on the box body is scooped up by setting a scooping claw mechanism, the scooped cable tie is fixed and clamped by a clamping device, and the clamped cable tie is cut by a cutting device with scissors. It has a simple structure, convenient operation, and a high degree of automation. It can quickly cut the cable ties on the box body one by one and pull them off the box body. It has high work efficiency, reduces the labor intensity of personnel, and the entire operation process is environmentally friendly and pollution-free. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Attached Figure 1 A schematic diagram of an unpacked box tied with a lashing belt;

[0016] Attached Figure 2 It is a schematic diagram of the overall structure of the automatic cable tie cutting device of the present invention;

[0017] Attached Figure 3 It is a schematic diagram of the overall structure of the automatic cable tie cutting device of the present invention;

[0018] Attached Figure 4 It is an enlarged schematic diagram of the claw mechanism and the clamping device in the automatic cable tie cutting device of the present invention;

[0019] Attached Figure 5 It is an enlarged schematic diagram of the cutting device in the automatic cable tie cutting device of the present invention;

[0020] Attached Figure 6 It is a schematic diagram of the cooperation between the cutting device and the pressing spring sheet in the automatic cable tie cutting device of the present invention;

[0021] Wherein: 100, box body; 101, cable tie; 200, cable tie cutting device; 300, manipulator (driving device); 1, machine base; 2, claw mechanism; 21, claw seat; 22, scraper; 22a, contact surface; 22b, guide surface; 23, rotating shaft; 24, torsion spring; 3, clamping device; 31, clamping seat; 32, clamping driving mechanism (clamping cylinder); 4, cutting device; 41, scissors; 411, first scissor arm; 412, second scissor arm; 42, scissor driving mechanism (cutting cylinder); 43, mounting seat; 44, feeding driving mechanism (feeding cylinder); 5, camera; 6, pressing spring; 7, in-place sensor; 8, color photoelectric sensor; 9, elastic force detector. DETAILED DESCRIPTION

[0022] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] See also Figures 1 to 6 As shown, an automatic cable tie cutting device is used to cut the cable tie 101 tied on the outer periphery of the box body 100, see Figure 1 In the embodiment, a plurality of cable ties 101 are tied around the outer periphery of the box body 100 , and the plurality of cable ties 101 are distributed at intervals along the length extension direction of the box body 100 . The cable ties cutting device cuts the cable ties 101 from the upper part of the box body 100 .

[0024] The automatic cable tie cutting device comprises an automatic cable tie cutting device 200 and a driving device 300 for driving the automatic cable tie cutting device 200 to move as a whole. The driving device 300 is a manipulator, and the automatic cable tie cutting device 200 is integrally mounted on the moving end of the manipulator.

[0025] See also Figure 3As shown, the automatic cable tie cutting device 200 includes a claw mechanism 2 for scooping up the cable tie 101 and keeping it away from the surface of the box 100, a clamping device 3 for clamping the scooped cable tie 101, and a cutting device 4 for cutting the clamped cable tie 101, wherein the clamping device 3 has at least two clamping positions along the length direction of the cable tie 101, and the cutting device 4 has at least a pair of scissors 41, and the scissors 41 are located between the two clamping positions, so as to cut the cable tie 101 located between the two clamping positions.

[0026] Specifically, see Figure 4 As shown, the claw mechanism 2 includes a claw seat 21, a scraper 22 disposed at the end of the claw seat 21 for scraping the cable tie 101 onto the claw seat 21, the scraper 22 having a contact surface 22a capable of contacting the surface of the box 100, and a guide surface 22b different from the contact surface 22a, when the contact surface 22a is in close contact with the surface of the box 100, the guide surface 22b is inclined gradually upward toward the claw seat 21. Here, the end of the scraper 22 is rotatably connected to the claw seat 21 around the rotating shaft 23, and an elastic member for driving the scraper 22 to move relative to the claw seat 21 toward the surface of the box 100 is also disposed between the scraper 22 and the claw seat 21. Here, the elastic member is a torsion spring sleeved on the rotating shaft 23.

[0027] In this way, when the claw mechanism 2 as a whole approaches the upper surface of the box 100 downward, the scraper 22 first contacts the box 100, and the close surface 22a contacts the surface of the box 100. Under the action of the torsion spring 24, the outer end of the scraper 22 maintains contact with the surface of the box 100 without damaging the surface of the box 100; then, when moving toward the cable tie 101, the cable tie 101 will follow the guide surface 22b to reach the claw seat 21, and the cable tie 101 will be lifted up and separated from the upper surface of the box 100.

[0028] See also Figure 4 As shown, the clamping device 3 includes a clamping seat 31 that can move toward or away from the claw seat 21, and a clamping drive mechanism 32 for driving the clamping seat 31 to make linear motion. Here, the clamping seat 31 can be lifted up and down and is arranged above the claw seat 21. The clamping drive mechanism 32 adopts a clamping cylinder for driving the clamping seat 31 to lift up and down. When the claw mechanism 2 picks up the cable tie 101 onto the claw seat 21, the clamping cylinder 32 drives the clamping seat 31 to move downward, thereby clamping the cable tie 101 between the claw seat 21 and the clamping seat 31. The claw seat 21 and the clamping seat 21 are also provided with an anti-slip structure, such as a sawtooth structure, on the surface opposite to the clamping seat 21 to prevent the cable tie 101 from slipping. A color photoelectric sensor 8 is also provided on the machine base 1 or the clamping seat 31 to detect whether there is a cable tie 101 below it, so as to determine whether the claw mechanism 2 has picked up the cable tie 101 onto the claw seat 21.

[0029] Two groups of clamping seats 31 and claw seats 21 are respectively provided to form two clamping positions for the cable tie 101. Two groups of clamping drive mechanisms 32 are also provided to control the two groups of clamping seats 31 respectively, which is mainly used to release the clamping at one clamping position after the cable tie 101 is cut. When the cable tie cutting device 200 moves as a whole, the clamping seat 31 at one clamping position and the claw seat 21 maintain the clamping of the cable tie 101, and the cable tie 101 can be pulled away from the box 100.

[0030] See also Figure 5 , Figure 6 As shown, the shearing device 4 also includes a mounting seat 43 for mounting the scissors 41. The scissors 41 have a first scissor arm 411 and a second scissor arm 412 that are rotatably connected to each other. The first scissor arm 411 is fixed on the mounting seat 43. A scissor driving mechanism 42 is provided between the mounting seat 43 and the second scissor arm 412 for driving the second scissor arm 412 to rotate and close or open relative to the first scissor arm 411. Here, the scissor driving mechanism 42 adopts a shearing cylinder. The mounting seat 43 can be mounted on the machine base 1 in a linear motion. The shearing device 4 also includes a feed driving mechanism for driving the mounting seat 43 in a linear motion. Here, a feed cylinder 44 is adopted, so that after the cable tie 101 is clamped and fixed, the mounting seat 43 is driven as a whole to move toward the cable tie 101, so that the cable tie 101 is located between the blades of the first scissor arm 411 and the second scissor arm 412. Then, the shearing cylinder is started to drive the second scissor arm 412 to rotate, so that the cable tie 101 can be cut.

[0031] See also Figure 3 , Figure 6 As shown, the cable tie cutting device 200 further includes a pressing spring sheet 6 that can be pressed on the cable tie 101 picked up by the claw mechanism 2, and an elastic force detector 9 that can detect the pressing state of the pressing spring sheet 6 to determine whether the cable tie 101 is cut. When the cable tie 101 is not cut, the pressing spring sheet 6 is pressed on the cable tie 101, and the pressing spring sheet 6 is subjected to a certain pressing force; once the cable tie 101 is cut, the pressing spring sheet 6 is no longer pressed on the cable tie 101 and is no longer subjected to the pressing force, and the elastic force detector 9 detects the change in the state of the pressing spring sheet 6, and then sends a signal to the cutting device 4 to reset the scissors 41.

[0032] The cable tie cutting device 200 also includes a detection device for detecting the position of the cable tie 101 on the outer peripheral portion of the box body 100. The detection device is connected to the driving device 300 by signal, and the driving device 300 can control the movement of the claw mechanism 2 according to the position information detected by the detection device, so that the claw mechanism 2 can accurately reach the cable tie 101 to be cut and pick up the cable tie 101. Figure 3As shown, the detection device includes a camera 5 for scanning and photographing the surface of the box 100 and obtaining an image of the surface of the box 100, and an image processor (not shown in the figure) that can obtain the position coordinates of the cable tie 101 according to the image of the surface of the box taken by the camera 5. The image processor is connected to the manipulator 300 by a signal, and the manipulator 300 drives the entire cable tie cutting device 200 to move according to the obtained position coordinate information, so that the claw mechanism 2 approaches the cable tie 101 in a direction perpendicular to the length of the cable tie 101 to be cut and picks up the cable tie 101, and then clamps and cuts it.

[0033] See also Figure 3 As shown, the cable tie cutting device 200 also includes a position sensor 7 for detecting whether the claw mechanism 2 has moved to a position. The position sensor 7 is connected to the manipulator 300 of the driving device by signal to prevent the manipulator 300 from touching the box 100 after moving too far and causing damage to the box 100.

[0034] The working process of this embodiment is described in detail below:

[0035] The camera 5 of the detection device first scans along the length direction of the box 100 (i.e., perpendicular to the length direction of the cable tie 101), and transmits the scanned box surface image to the image processor. The image processor obtains the position coordinates of each cable tie 101 on the box 100 based on the box surface image, and sends the position coordinates to the manipulator 300. The manipulator 300 then controls the movement of the cable tie cutting device 200 based on the position coordinates, so that the cable tie cutting device 200 first approaches the upper surface of the box 100 and reaches the vicinity of the cable tie 101 to be cut. The outer end of the scraper 22 of the claw mechanism 2 first contacts the upper surface of the box 100, and then the claw mechanism 2 moves toward the cable tie 101 together with the entire cable tie cutting device 200, thereby scooping the cable tie 101 from the scraper 22 to the claw seat 21. Then, the clamping devices 3 on both sides are activated to clamp the cable tie 101 between the claw seat 21 and the clamping seat 31, and the cutting device 4 is activated, and the scissors 41 move toward the cable tie 101 and cut the cable tie 101. Finally, the clamping of one clamping device 3 is released, and the manipulator 300 moves to remove the cut cable tie 101 from the box 100.

[0036] The automatic cable tie cutting device of the present invention has a simple structure, is easy to operate, and has a high degree of automation. It can effectively detect the position coordinates of the cable ties 101 to be cut, and can quickly and effectively cut the cable ties 101 on the box 100 one by one. It has high work efficiency, reduces the labor intensity of personnel, and the entire operation process is environmentally friendly and pollution-free.

[0037] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic cable tie cutting device, used to cut the cable tie tied on the outer periphery of the box body, characterized in that: The invention comprises an automatic cable tie cutting device, the automatic cable tie cutting device comprises a claw mechanism for lifting the cable tie and keeping it away from the surface of the box body, a clamping device for clamping the lifted cable tie, and a cutting device for cutting the clamped cable tie, wherein the clamping device has at least two clamping positions along the length direction of the cable tie, the cutting device has at least a pair of scissors, the scissors are located between the two clamping positions, the cutting device also comprises a mounting seat for mounting the scissors, the scissors have a first scissor arm and a second scissor arm rotatably connected to each other, the first scissor arm is fixed on the mounting seat, and a scissor driving mechanism for driving the second scissor arm to rotate and close or open relative to the first scissor arm is arranged between the mounting seat and the second scissor arm; The claw mechanism comprises a claw seat, a scraper provided at the end of the claw seat for scraping the cable tie onto the claw seat, the scraper having a contact surface capable of contacting the surface of the box body, and a guide surface different from the contact surface, when the contact surface contacts the surface of the box body, the guide surface is inclined gradually upward toward the claw seat, the scraper is rotatably connected to the claw seat around a rotation axis, and an elastic member is further provided between the scraper and the claw seat for driving the scraper to move relative to the claw seat toward the surface of the box body with the required elastic force; When the claw mechanism as a whole moves downwards towards the upper surface of the box, the scraper first contacts the box, and the contact surface contacts the surface of the box. Under the action of the elastic member, the outer end of the scraper maintains contact with the surface of the box without damaging the surface of the box. The cable tie cutting device also includes a compression spring sheet capable of compressing the cable tie picked up by the claw mechanism, and an elastic force detector capable of detecting the compression state of the compression spring sheet to determine whether the cable tie is cut, and the compression spring sheet is located between the two clamping positions.

2. The automatic cable tie cutting device according to claim 1 is characterized in that: The clamping device comprises a clamping seat capable of moving toward or away from the claw seat, and a clamping driving mechanism for driving the clamping seat to move linearly. The clamping seat and the claw seat are respectively provided in two groups.

3. The automatic cable tie cutting device according to claim 1 is characterized in that: The cable tie cutting device also includes a detection device for detecting the position of the cable tie on the outer peripheral portion of the box body, and the automatic cable tie cutting equipment also includes a driving device for driving the automatic cable tie cutting device to move as a whole. The driving device is connected to the detection device by signal and controls the movement of the claw mechanism according to the position information detected by the detection device.

4. The automatic cable tie cutting device according to claim 3 is characterized in that: The detection device includes a camera for scanning and photographing the box surface and obtaining an image of the box surface, and an image processor capable of obtaining the position coordinates of the cable tie based on the box surface image taken by the camera, and a signal connection is provided between the drive device and the image processor.

5. The automatic cable tie cutting device according to claim 3 is characterized in that: The driving device is a manipulator, and the automatic cable tie cutting device has a machine base fixedly mounted on the manipulator, and the claw mechanism, the clamping device and the cutting device are all mounted on the machine base.

6. The automatic cable tie cutting device according to claim 3 is characterized in that: The cable tie cutting device further comprises a position sensor for detecting whether the claw mechanism has moved to a position, and a signal connection is provided between the position sensor and the driving device.

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