An automatic unwinding system

Abstract

The present invention discloses an automatic unwinding system, belonging to the technical field of UV harness tape coating. An automatic unwinding system includes a material changing module and a loading module. A tension adjusting module is arranged on one side of the material changing module. The material changing module includes a first turntable and a second turntable. The first turntable and the second turntable are respectively provided with a first disc and a second disc. In order to solve the problem that the harness tape material roll is heavy, it is difficult for personnel to load the material, and it is difficult to load the material accurately and smoothly, thereby affecting the production efficiency, an unwinding position and a loading position are arranged inside the material changing module, and the unwinding position and the loading position are both provided with a rotating shaft containing the material roll. When the material roll of the unwinding position is consumed and only the rotating shaft is left, the material changing module moves the material roll and the rotating shaft of the loading position to the unwinding position, and the rotating shaft of the unwinding position moves to the loading position. At this time, the personnel control the loading module to reinstall the rotating shaft containing the material roll to the loading position, thereby reducing the work intensity of the personnel and improving the production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of UV harness tape coating, in particular to an automatic unwinding system. Background Art

[0002] Wiring tape is a special tape used for wiring harness binding and protection of automobiles, airplanes, ships and other means of transportation. It not only plays a role in fixing and protecting wires, but also has important functions in insulation and flame retardancy. Wiring tape is usually made of PVC (polyvinyl chloride), PE (polyethylene) and other materials, with good flexibility and durability. These materials can not only withstand certain mechanical stress, but also have certain flame retardant properties. In the automotive industry, wiring harness tape is widely used in engine compartments, chassis, body interiors and other parts. It can not only fix the wiring harness, but also prevent the wiring harness from being damaged due to vibration and friction. As an important industrial consumable, wiring harness tape plays an indispensable role in modern transportation. Correct selection and use of wiring harness tape can not only improve production efficiency, but also ensure the safety and stable operation of the electrical system.

[0003] The unwinding process of wiring harness tape manufacturing is one of the key steps in wiring harness production. After the personnel install the roll to be coated on the unwinding bracket, the motor drives the roll to rotate and slowly unwinds it. However, after the unwinding is completed, the traditional roll replacement method mainly relies on personnel to disassemble the roll and then load the material. There is a problem that the wire harness tape roll is heavy, and it is difficult for personnel to load the material, and it is difficult to load the material accurately and smoothly, which affects production efficiency. Therefore, it does not meet the existing needs. This application proposes an automated unwinding system. Summary of the invention

[0004] The object of the present invention is to provide an automated unwinding system, in which an unwinding position and a loading position are arranged inside a material changing module, and both the unwinding position and the loading position are provided with rotating shafts, and material rolls are fixed on the two rotating shafts. When the material roll at the unwinding position is consumed and only the rotating shaft is left, the material changing module moves the material roll and the rotating shaft at the loading position to the unwinding position, and the rotating shaft at the unwinding position moves to the loading position. At this time, personnel control the loading module to reinstall the rotating shaft containing the material roll to the loading position, thereby reducing the work intensity of personnel, improving production efficiency, and solving the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automated unwinding system, comprising a material changing module and a loading module, a tension adjustment module being arranged on one side of the material changing module, the material changing module comprising a first turntable and a second turntable, a first fixed frame being arranged below the first turntable, a first disc being arranged inside the first turntable, a second fixed frame being arranged below the second turntable, a second disc being arranged inside the second turntable, a second motor being arranged on one side of the second turntable, a rotating shaft and a material roll being arranged between the first turntable and the second turntable, the loading module comprising a workbench and a lifting plate, the workbench being located below the lifting plate, and the rotating shaft being located above the lifting plate.

[0006] Preferably, a first supporting roller is arranged inside the first fixing frame, a first bracket is arranged on one side of the first fixing frame, the first supporting roller contacts the curved surface of the first turntable, a second supporting roller is arranged inside the second fixing frame, a second bracket is arranged on one side of the second fixing frame, the second supporting roller contacts the curved surface of the second turntable.

[0007] Preferably, a first motor is provided on one side of the first turntable, the first motor is fixed on the first bracket, a rotating shaft is provided at one end of the first motor, and the rotating shaft passes through the first bracket, the first turntable, the second turntable and the second bracket in sequence.

[0008] Preferably, the material roll is fixed on a rotating shaft, and transmission blocks are provided at both ends of the rotating shaft, a first limit block is provided on the side of the first disc, and a second limit block is provided on the side of the second disc, the first limit block and the second limit block are both hollow structures with open bottom and sides, and the transmission blocks at both ends of the rotating shaft are respectively located inside the first limit block and the second limit block.

[0009] Preferably, a first electric telescopic rod is provided on the side of the first disc, a first plug plate is provided below the first electric telescopic rod, one end of the first plug plate is connected to the first electric telescopic rod, the other end of the first plug plate passes through the first disc and extends to the bottom of the first limit block, a second electric telescopic rod is provided on the side of the second disc, a second plug plate is provided below the second electric telescopic rod, one end of the second plug plate is connected to the second electric telescopic rod, the other end of the second plug plate passes through the second disc and extends to the bottom of the second limit block.

[0010] Preferably, a fixing ring is provided on the side of the second disc, a driven gear and a driving gear are provided on one side of the second motor, the driving gear is connected to the second motor shaft, the driven gear is connected to the fixing ring, the driven gear is meshed with the driving gear, and the second motor is fixed to the side of the second turntable through a fixing plate.

[0011] Preferably, a third electric telescopic rod is arranged between the workbench and the lifting plate, first limit grooves are arranged at both ends of the workbench, support rods are arranged at both ends of the lifting plate, the support rods are located inside the first limit grooves, a clamping block is arranged at the upper end of the support rod, and the transmission block is located inside the clamping block.

[0012] Preferably, a pulley is provided under the workbench, a slideway is provided under the pulley, a first positioning block and a second positioning block are provided on two side surfaces of the workbench respectively, and a first baffle plate and a second baffle plate are provided at both ends of the slideway respectively.

[0013] Preferably, the tension adjustment module includes a mounting plate, at least two mounting plates are provided, a first roller, an adjusting roller, a second roller, a third roller and a substrate are provided between the two mounting plates, sliders are provided at both ends of the adjusting roller, columns are provided on both sides of the adjusting roller, a slide groove is provided at the upper end of the column, a fourth electric telescopic rod is provided inside the slide groove, the slider is located inside the slide groove, and the telescopic end of the fourth electric telescopic rod is connected to the slider.

[0014] Preferably, one end of the substrate is connected to the material roll, and the other end of the substrate passes through the first roller, the adjusting roller, the second roller and the third roller in sequence.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention provides a material changing module and a loading module, wherein an unwinding position and a loading position are provided inside the material changing module, and both the unwinding position and the loading position are provided with rotating shafts, and material rolls are fixed on the two rotating shafts. When the material roll at the unwinding position is consumed and only the rotating shaft is left, the material changing module moves the material roll and the rotating shaft at the loading position to the unwinding position, and the rotating shaft at the unwinding position moves to the loading position. At this time, after the personnel removes the rotating shaft at the loading position, the loading module is controlled to install the rotating shaft containing the material roll to the loading position. Repeating the above steps can realize smooth and continuous unwinding, while reducing the work intensity of the personnel and improving production efficiency.

[0017] 2. The present invention is that when the personnel removes the rotating shaft of the loading position and controls the loading module to move to the first positioning block and contact the first baffle plate, the rotating shaft containing the material roll is fixed above the loading module, and the third electric telescopic rod drives the rotating shaft containing the material roll to move upward, and the transmission blocks at both ends of the rotating shaft are respectively located inside the first limit block and the second limit block. Then the first electric telescopic rod controls the first plug plate to move below the first limit block, and the second electric telescopic rod controls the second plug plate to move below the second limit block, so that the bottom of the first limit block and the second limit block are both in a closed state, thereby making the rotating shaft containing the material roll fixed between the first turntable and the second turntable, and finally the personnel controls the loading module to move to the second positioning block and contact the second baffle plate, so that the loading module is away from the material changing module, and then completes the material changing operation of the loading position, realizes standardized operation, ensures the smoothness of loading and changing, and avoids the possibility of safety hazards caused by personnel's incorrect operation.

[0018] 3. The present invention realizes slow unwinding by, when the first motor drives the first turntable and the second turntable to rotate, so that the material roll is in the unwinding position, the second motor drives the driving gear to rotate, and the driving gear then drives the driven gear, the second disc, the rotating shaft, the first disc and the material roll to rotate in sequence, wherein when the first turntable and the second turntable rotate, since the first bracket is fixed at a position away from the first turntable and the second bracket is fixed at a position away from the second turntable, the first bracket and the second bracket are prevented from interfering with the movement of the first electric telescopic rod, the second telescopic rod and the second motor, and at the same time, the personnel can control the vertical position of the adjustment roller by the fourth electric telescopic rod driving the slider to move up and down inside the slide slot, thereby adjusting the tension of the substrate, thereby ensuring the stable transportation of the substrate, helping to improve the subsequent processing accuracy, reduce material waste, and further improve the production quality of the wiring harness tape. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an overall schematic diagram of the present invention;

[0020] Figure 2 It is a schematic diagram of the partial structure of the first fixing frame of the present invention;

[0021] Figure 3 It is a schematic diagram of the partial structure of the first disc of the present invention;

[0022] Figure 4 It is a schematic diagram of the partial structure of the second disc of the present invention;

[0023] Figure 5 It is a schematic diagram of the partial structure of the feeding module of the present invention;

[0024] Figure 6 It is a partial structural schematic diagram of the tension adjustment module of the present invention;

[0025] Figure 7 It is a schematic diagram of the local structure of the adjustment drum of the present invention;

[0026] Figure 8 It is a schematic diagram of the local position of the substrate of the present invention.

[0027] In the figure: 1, material changing module; 101, first rotating disk; 102, second rotating disk; 103, first fixed frame; 1031, first supporting roller; 1032, first bracket; 104, second fixed frame; 1041, second supporting roller; 1042, second bracket; 105, first motor; 106, first disc; 1061, first limit block; 1062, first electric telescopic rod; 1063, first plug plate; 107, second disc; 1071, second limit block; 1072, second electric telescopic rod; 1073, second plug plate; 1074, fixed ring; 108, second motor; 1081, fixed plate; 1082, driven gear; 1083, driving gear Wheel; 2, loading module; 201, workbench; 2011, first limiting groove; 202, lifting plate; 2021, support rod; 2022, block; 203, third electric telescopic rod; 204, pulley; 205, first positioning block; 2051, first baffle; 206, second positioning block; 2061, second baffle; 207, slide; 3, tension adjustment module; 301, mounting plate; 302, first roller; 303, adjustment roller; 3031, slider; 3032, fourth electric telescopic rod; 3033, column; 3034, slide; 304, second roller; 305, third roller; 4, substrate; 5, rotating shaft; 501, transmission block; 6, material roll. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] In order to solve the problem that the wire harness tape rolls are heavy, it is difficult for personnel to load the materials accurately and smoothly, thus affecting production efficiency, please refer to Figure 1-8 , this embodiment provides the following technical solutions:

[0030] An automated unwinding system includes a material changing module 1 and a material loading module 2. A tension adjusting module 3 is provided on one side of the material changing module 1. The material changing module 1 includes a first turntable 101 and a second turntable 102. A first fixed frame 103 is provided below the first turntable 101. A first disc 106 is provided inside the first turntable 101. A second fixed frame 104 is provided below the second turntable 102. A second disc 107 is provided inside the second turntable 102. A second motor 108 is provided on one side of the second turntable 102. A rotating shaft 5 and a material roll 6 are provided between the first turntable 101 and the second turntable 102. The material loading module 2 includes a workbench 201 and a lifting plate 202. The workbench 201 is located below the lifting plate 202, and the rotating shaft 5 is located above the lifting plate 202.

[0031] Specifically, an unwinding position and a loading position are provided inside the material changing module 1, and both the unwinding position and the loading position are provided with a rotating shaft 5, and material rolls 6 are fixed on the two rotating shafts 5. When the material roll 6 at the unwinding position is consumed and only the rotating shaft 5 is left, the material changing module 1 moves the material roll 6 and the rotating shaft 5 at the loading position to the unwinding position, and the rotating shaft 5 at the unwinding position moves to the loading position. At this time, after the personnel removes the rotating shaft 5 at the loading position, the loading module 2 is controlled to install the rotating shaft 5 containing the material roll 6 to the loading position. Repeating the above steps can achieve smooth and continuous unwinding, while reducing the work intensity of the personnel and improving production efficiency.

[0032] A first support roller 1031 is disposed inside the first fixed frame 103, a first bracket 1032 is disposed on one side of the first fixed frame 103, and the first support roller 1031 contacts the curved surface of the first rotating disk 101. A second support roller 1041 is disposed inside the second fixed frame 104, a second bracket 1042 is disposed on one side of the second fixed frame 104, and the second support roller 1041 contacts the curved surface of the second rotating disk 102. A first motor 105 is disposed on one side of the first rotating disk 101, and the first motor 105 is fixed on the first bracket 1032. One end of the first motor 105 is provided A rotating shaft is provided, which passes through the first bracket 1032, the first turntable 101, the second turntable 102 and the second bracket 1042 in sequence. The material roll 6 is fixed on the rotating shaft 5. Transmission blocks 501 are provided at both ends of the rotating shaft 5. A first limit block 1061 is provided on the side of the first disc 106, and a second limit block 1071 is provided on the side of the second disc 107. The first limit block 1061 and the second limit block 1071 are both hollow structures with open bottoms and sides. The transmission blocks 501 at both ends of the rotating shaft 5 are respectively located inside the first limit block 1061 and the second limit block 1071.

[0033] A first electric telescopic rod 1062 is provided on the side of the first disc 106, a first plug plate 1063 is provided below the first electric telescopic rod 1062, one end of the first plug plate 1063 is connected to the first electric telescopic rod 1062, the other end of the first plug plate 1063 passes through the first disc 106 and extends to the bottom of the first limit block 1061, a second electric telescopic rod 1072 is provided on the side of the second disc 107, a second plug plate 1073 is provided below the second electric telescopic rod 1072, one end of the second plug plate 1073 is connected to the second electric telescopic rod 1072, the other end of the second plug plate 1073 passes through the first disc 106 and extends to the bottom of the first limit block 1061, The second disc 107 extends to the bottom of the second limit block 1071, and a fixing ring 1074 is provided on the side of the second disc 107. A driven gear 1082 and a driving gear 1083 are provided on one side of the second motor 108. The driving gear 1083 is connected to the shaft of the second motor 108, and the driven gear 1082 is connected to the fixing ring 1074. The driven gear 1082 is meshed with the driving gear 1083. The second motor 108 is fixed to the side of the second turntable 102 through a fixing plate 1081, the first disc 106 is connected to the first turntable 101 through a bearing, and the second disc 107 is connected to the second turntable 102 through a bearing.

[0034] A third electric telescopic rod 203 is arranged between the workbench 201 and the lifting plate 202, first limiting grooves 2011 are arranged at both ends of the workbench 201, support rods 2021 are arranged at both ends of the lifting plate 202, the support rod 2021 is located inside the first limiting groove 2011, a clamping block 2022 is arranged at the upper end of the support rod 2021, and a transmission block 501 is located inside the clamping block 2022, a pulley 204 is arranged below the workbench 201, a slideway 207 is arranged below the pulley 204, a first positioning block 205 and a second positioning block 206 are respectively arranged on both sides of the workbench 201, and a first baffle 2051 and a second baffle 2061 are respectively arranged at both ends of the slideway 207, the combination of the pulley 204 and the slideway 207 can ensure that the motion trajectory of the loading module 2 is in a straight line state, and the first baffle 2051 and the second baffle 2061 can limit the position of the loading module 2.

[0035] Specifically, when the personnel removes the rotating shaft 5 of the loading position and controls the loading module 2 to move to the first positioning block 205 and the first baffle 2051, the rotating shaft 5 containing the material roll 6 is fixed above the loading module 2 by the transmission block 501 being stuck in the block 2022, and the third electric telescopic rod 203 drives the rotating shaft 5 containing the material roll 6 to move upward until the transmission blocks 501 at both ends of the rotating shaft 5 are respectively located inside the first limit block 1061 and the second limit block 1071, and then the first electric telescopic rod 1062 controls the first plug plate 1063 to move to the bottom of the first limit block 1061, and the second electric telescopic rod 1072 controls The second plug plate 1073 moves to the bottom of the second limit block 1071, so that the bottom of the first limit block 1061 and the second limit block 1071 are both in a closed state, so that the rotating shaft 5 containing the material roll 6 is fixed between the first disc 106 and the second disc 107. Finally, the personnel control the loading module 2 to move to the second positioning block 206 and contact the second baffle 2061, so that the loading module 2 is away from the material changing module 1, and the material changing operation of the loading position is completed, thereby realizing standardized operation, ensuring the smoothness of loading and changing, avoiding the possibility of safety hazards caused by personnel erroneous operation, and further improving the safety of wiring harness tape production.

[0036] The tension adjustment module 3 includes a mounting plate 301, at least two mounting plates 301 are provided, a first roller 302, an adjusting roller 303, a second roller 304, a third roller 305 and a substrate 4 are provided between the two mounting plates 301, sliders 3031 are provided at both ends of the adjusting roller 303, columns 3033 are provided on both sides of the adjusting roller 303, a slide groove 3034 is provided at the upper end of the column 3033, a fourth electric telescopic rod 3032 is provided inside the slide groove 3034, the slider 3031 is located inside the slide groove 3034, the telescopic end of the fourth electric telescopic rod 3032 is connected to the slider 3031, one end of the substrate 4 is connected to the material roll 6, and the other end of the substrate 4 passes through the first roller 302, the adjusting roller 303, the second roller 304 and the third roller 305 in sequence.

[0037] Specifically, when the first motor 105 drives the first turntable 101 and the second turntable 102 to rotate, so that the material roll 6 is in the unwinding position, the second motor 108 drives the driving gear 1083 to rotate, and the driving gear 1083 then drives the driven gear 1082, the second disc 107, the rotating shaft 5, the first disc 106 and the material roll 6 to rotate in sequence, thereby realizing slow unwinding. When the first turntable 101 and the second turntable 102 rotate, since the first bracket 1032 is fixed at a position away from the first turntable 101, the second bracket 1042 is fixed at a position away from the second turntable 102, thereby preventing the first bracket 1032 and the second bracket 1042 from interfering with the movement of the first electric telescopic rod 1062, the second electric telescopic rod 1072 and the second motor 108. At the same time, personnel can control the vertical position of the adjustment roller 303 by driving the slider 3031 to move up and down in the slide groove 3034 through the fourth electric telescopic rod 3032, so as to adjust the tension of the substrate 4, thereby ensuring the stable transportation of the substrate 4, helping to improve the subsequent processing accuracy, reduce material waste, and further improve the production quality of the wiring harness tape.

[0038] Working principle: by setting an unwinding position and a loading position inside the material changing module 1, both the unwinding position and the loading position are provided with a rotating shaft 5, and a material roll 6 is fixed on the two rotating shafts 5. When the material roll 6 at the unwinding position is consumed and only the rotating shaft 5 is left, the material changing module 1 moves the material roll 6 and the rotating shaft 5 at the loading position to the unwinding position, and the rotating shaft 5 at the unwinding position moves to the loading position. At this time, after the personnel removes the rotating shaft 5 at the loading position, the loading module 2 is controlled to move to the first positioning block 205 and the first baffle 2051. At this time, the rotating shaft 5 containing the material roll 6 is driven by the transmission The block 501 is fixed above the loading module 2 by being stuck in the blocking block 2022, and the third electric telescopic rod 203 drives the rotating shaft 5 containing the material roll 6 to move upward, and the transmission blocks 501 at both ends of the rotating shaft 5 are respectively fixed inside the first limit block 1061 and the second limit block 1071, so that the position of the rotating shaft 5 containing the material roll 6 is fixed at the loading position, thereby completing the material changing operation at the loading position and realizing standardized operation. Repeating the above steps can realize smooth and continuous unwinding, while reducing the workload of personnel and improving production efficiency.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automated unwinding system, comprising a material changing module (1), characterized in that ； The invention also comprises a loading module (2), wherein a tension adjustment module (3) is arranged on one side of the material changing module (1), the material changing module (1) comprises a first turntable (101) and a second turntable (102), a first fixed frame (103) is arranged below the first turntable (101), a first disc (106) is arranged inside the first turntable (101), a second fixed frame (104) is arranged below the second turntable (102), a second disc (107) is arranged inside the second turntable (102), a second motor (108) is arranged on one side of the second turntable (102), a rotating shaft (5) and a material roll (6) are arranged between the first turntable (101) and the second turntable (102), and the loading module (2) comprises a workbench (201) and a lifting plate (202), the workbench (201) is located below the lifting plate (202), and the rotating shaft (5) is located above the lifting plate (202).

2. The automatic unwinding system according to claim 1, characterized in that: A first supporting roller (1031) is arranged inside the first fixed frame (103), a first bracket (1032) is arranged on one side of the first fixed frame (103), and the first supporting roller (1031) contacts the curved surface of the first rotating disk (101); a second supporting roller (1041) is arranged inside the second fixed frame (104), a second bracket (1042) is arranged on one side of the second fixed frame (104), and the second supporting roller (1041) contacts the curved surface of the second rotating disk (102).

3. The automatic unwinding system according to claim 1, characterized in that: A first motor (105) is arranged on one side of the first turntable (101), the first motor (105) is fixed on the first bracket (1032), and a rotating shaft is arranged at one end of the first motor (105), and the rotating shaft passes through the first bracket (1032), the first turntable (101), the second turntable (102) and the second bracket (1042) in sequence.

4. The automatic unwinding system according to claim 1, characterized in that: The material roll (6) is fixed on the rotating shaft (5), and transmission blocks (501) are arranged at both ends of the rotating shaft (5). A first limit block (1061) is arranged on the side of the first disc (106), and a second limit block (1071) is arranged on the side of the second disc (107). The first limit block (1061) and the second limit block (1071) are both hollow structures with the bottom and the side open. The transmission blocks (501) at both ends of the rotating shaft (5) are respectively located inside the first limit block (1061) and the second limit block (1071).

5. The automatic unwinding system according to claim 1, characterized in that: A first electric telescopic rod (1062) is arranged on the side of the first disc (106), a first plug plate (1063) is arranged below the first electric telescopic rod (1062), one end of the first plug plate (1063) is connected to the first electric telescopic rod (1062), the other end of the first plug plate (1063) passes through the first disc (106) and extends to the bottom of the first limit block (1061), a second electric telescopic rod (1072) is arranged on the side of the second disc (107), a second plug plate (1073) is arranged below the second electric telescopic rod (1072), one end of the second plug plate (1073) is connected to the second electric telescopic rod (1072), the other end of the second plug plate (1073) passes through the second disc (107) and extends to the bottom of the second limit block (1071).

6. The automatic unwinding system according to claim 1, characterized in that: A fixing ring (1074) is provided on the side of the second disc (107), and a driven gear (1082) and a driving gear (1083) are provided on one side of the second motor (108). The driving gear (1083) is connected to the shaft of the second motor (108), the driven gear (1082) is connected to the fixing ring (1074), the driven gear (1082) is meshed with the driving gear (1083), and the second motor (108) is fixed to the side of the second rotating disc (102) via a fixing plate (1081).

7. The automatic unwinding system according to claim 1, characterized in that: A third electric telescopic rod (203) is arranged between the workbench (201) and the lifting plate (202); first limit grooves (2011) are arranged at both ends of the workbench (201); support rods (2021) are arranged at both ends of the lifting plate (202); the support rods (2021) are located inside the first limit grooves (2011); a clamping block (2022) is arranged at the upper end of the support rod (2021); and the transmission block (501) is located inside the clamping block (2022).

8. The automatic unwinding system according to claim 1, characterized in that: A pulley (204) is arranged below the workbench (201), a slideway (207) is arranged below the pulley (204), a first positioning block (205) and a second positioning block (206) are arranged on two side surfaces of the workbench (201), and a first baffle (2051) and a second baffle (2061) are arranged at both ends of the slideway (207).

9. The automatic unwinding system according to claim 1, characterized in that: The tension adjustment module (3) comprises a mounting plate (301), at least two mounting plates (301) are provided, a first roller (302), an adjustment roller (303), a second roller (304), a third roller (305) and a substrate (4) are provided between the two mounting plates (301), sliders (3031) are provided at both ends of the adjustment roller (303), columns (3033) are provided on both sides of the adjustment roller (303), a slide groove (3034) is provided at the upper end of the column (3033), a fourth electric telescopic rod (3032) is provided inside the slide groove (3034), the slider (3031) is located inside the slide groove (3034), and the telescopic end of the fourth electric telescopic rod (3032) is connected to the slider (3031).

10. The automatic unwinding system according to claim 9, characterized in that: One end of the substrate (4) is connected to the material roll (6), and the other end of the substrate (4) passes through the first roller (302), the adjustment roller (303), the second roller (304) and the third roller (305) in sequence.

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