Unwinding device with tensioning assembly

Abstract

The utility model discloses an unwinding device with a tensioning assembly, which comprises a first bracket and a second bracket, and further comprises an unwinding platform, a multi-stage telescopic rod for connecting the first bracket and the second bracket, and a detachable guide rail mounted on the first bracket and connected with the second bracket, the power structure is installed on the unwinding platform and corresponds to the detachable guide rail, the unwinding structure is installed on the top of the unwinding platform, the unwinding tensioning assembly is installed at the front end of the unwinding platform, and the vacuum suction assembly is installed at the bottom of the unwinding platform. The first support and the second support are each provided with a lifting assembly, the bottom of the unwinding platform is provided with a detection structure, and the unwinding platform is further provided with a storage battery and a PLC. The starting point position of the unwinding platform is the end, connected with the first support, of the detachable guide rail. According to the utility model, the coiled material is in a tensioning state in the whole unwinding process, so that the coiled material is prevented from loosening, the coiled material is prevented from wrinkling in the laying process, and the laying quality is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of epoxy coiled materials, in particular to an unwinding device with a tensioning component. Background Art

[0002] Epoxy coiled material is a new type of floor material in the flooring industry. It is a polymer composite material made of elastomer toughened epoxy resin and polyurethane compound resin system as the matrix, toughened and strengthened with glass fiber, and prepared through a special curing process.

[0003] When laying existing epoxy coils, they are generally placed manually. However, when placing epoxy coils manually, due to insufficient tensioning force of the coils, the coils are not laid flat and are prone to wrinkles. There is also the possibility of deviation during the laying process, which causes the coils to be laid outside the glue application area, that is, the coils come into contact with the unlaid ground or are laid on the already laid coils, resulting in laying failure. In addition, the manual laying of the coils by workers is inefficient.

[0004] Therefore, how to prevent the coil from shifting during the laying process and improve the laying quality is a technical problem that needs to be solved urgently. Utility Model Content

[0005] The utility model aims to provide an unwinding device with a tensioning assembly to solve the problem in the prior art that when manually laying epoxy coils, the coils are easily offset, which affects the laying quality and even causes laying failure.

[0006] In order to achieve the above-mentioned purpose, the utility model proposes an unwinding device with a tensioning assembly, comprising a first bracket and a second bracket, wherein the unwinding platform, a multi-stage telescopic rod for connecting the first bracket and the second bracket, a detachable guide rail installed on the first bracket and connected to the second bracket, a power structure installed on the unwinding platform and corresponding to the detachable guide rail, an unwinding structure installed on the top of the unwinding platform, an unwinding tensioning assembly installed at the front end of the unwinding platform, and a vacuum suction assembly installed at the bottom of the unwinding platform; lifting assemblies are installed on the first bracket and the second bracket, a detection structure is installed at the bottom of the unwinding platform, and a battery and a PLC controller are also installed on the unwinding platform; the starting position of the unwinding platform is one end where the detachable guide rail is connected to the first bracket.

[0007] Optionally, the detachable guide rail includes a guide rail body, a protrusion arranged on one end of the guide rail body, a groove arranged on the other end of the guide rail body, and a guide rail bolt passing through the groove on the guide rail body.

[0008] Optionally, the guide rail body is provided with a guide groove corresponding to the power structure; the first bracket is provided with a support plate for fixing the guide rail body, and the second bracket is provided with a rotating sleeve movably mounted on it by bolts, and the rotating sleeve is in contact with the bottom of the guide rail body.

[0009] Optionally, the power structure includes a motor installed on the top of the unwinding platform, and a rotating wheel installed on the motor, and the rotating wheel is located in the guide groove; a sliding structure in contact with the guide rail body is installed at the bottom of the unwinding platform.

[0010] Optionally, the sliding structure includes a semicircular groove arranged at the bottom of the unwinding platform, a ball movably installed in the semicircular groove, and a limit plate installed at the bottom of the unwinding platform, the limit plate is provided with a limit groove corresponding to the ball, and the ball contacts the top surface of the guide rail body.

[0011] Optionally, the unwinding structure includes an unwinding frame installed on the top of the unwinding platform, an unwinding roller movably installed on the unwinding frame, a limiting circular plate installed on the unwinding roller, an L-shaped mounting frame installed on the top of the unwinding platform and located next to the unwinding frame, a screw rod installed on the L-shaped mounting frame through a nut, an arc-shaped friction block connected to the other end of the screw rod and located above the unwinding frame, and a telescopic spring mounted on the screw rod.

[0012] Optionally, two ends of the telescopic spring are in contact with the L-shaped mounting frame and the arc-shaped friction block respectively.

[0013] Optionally, the epoxy coil is rolled between the two limiting circular plates, and a first infrared distance sensor facing the limiting circular plates is installed on the unwinding rack.

[0014] Optionally, the unwinding tensioning assembly includes a tensioning hole arranged at the front end of the unwinding platform, a tensioning spring installed in the tensioning hole, a tensioning movable rod movably installed in the tensioning hole, a tensioning limit plate installed on the tensioning movable rod and adapted to the tensioning hole, and a tensioning roller movably installed on the tensioning movable rod.

[0015] Optionally, two ends of the tensioning spring are in contact with the bottom of the tensioning hole and the tensioning limit plate respectively, and a sealing cover is installed at the opening of the tensioning hole.

[0016] Optionally, the detection structure includes two second infrared distance sensors installed at the bottom of the unwinding platform and connected to the PLC controller, and the distance between the installation positions of the two second infrared distance sensors is equal to the width of the epoxy coil.

[0017] Optionally, the vacuum suction assembly includes a mounting plate installed at the bottom of the unwinding platform, a lifting electric cylinder installed on the mounting plate, a horizontal plate installed on the lifting electric cylinder, a miniature vacuum pump installed on the top of the horizontal plate, and a vacuum suction cup installed on the miniature vacuum pump.

[0018] Optionally, the lifting assembly includes a lifting electric cylinder, a support block installed on the lifting electric cylinder, and a rubber anti-sliding block installed at the bottom of the support block.

[0019] Optionally, rollers are installed at the bottom of the first bracket and the second bracket.

[0020] Compared with the prior art, the utility model provides an unwinding device with a tensioning assembly, which has the following beneficial effects:

[0021] The unwinding device with a tensioning component guides the movement of the unwinding platform and limits the moving direction of the unwinding platform through the setting of a detachable guide rail, and cooperates with the unwinding tensioning component to keep the coil in a tensioned state during the entire unwinding process, thereby preventing the coil from loosening and avoiding wrinkles in the coil during laying, thereby ensuring the laying quality. In addition, through the setting of a detection structure, the laying trajectory of the coil is demonstrated before laying, thereby preventing laying problems caused by the placement of the first bracket and the second bracket, thereby ensuring the laying quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0023] Figure 2 This utility model Figure 1 A partial enlarged view of point A in the middle.

[0024] Figure 3 This utility model Figure 1 A partial enlarged view of point B in the middle.

[0025] Figure 4 It is a schematic diagram of the unwinding platform and the unwinding structure of the utility model.

[0026] Figure 5 It is a structural schematic diagram of the unwinding platform and the unwinding structure of the utility model from another perspective.

[0027] Figure 6 It is a schematic diagram of the unwinding platform and the sliding structure of the utility model.

[0028] Figure 7 It is a structural schematic diagram of an unwinding platform and an unwinding tensioning assembly of the utility model.

[0029] Figure 8 It is a structural schematic diagram of the unwinding platform and the vacuum suction component of the utility model.

[0030] Fig. 9 This utility model Figure 8 A partial enlarged view of point C in the middle.

[0031] Fig.10It is a structural schematic diagram of the first bracket, the second bracket and the unwinding platform of the utility model.

[0032] Fig.11 It is a structural schematic diagram of the detachable guide rail of the utility model.

[0033] Markings in the figure: 1. First bracket; 11. Lifting assembly; 111. Lifting electric cylinder; 112. Support block; 113. Rubber anti-sliding block; 12. Roller; 13. Support plate; 2. Second bracket; 21. Rotating sleeve; 3. Unwinding platform; 31. Detection structure; 311. Second infrared distance sensor; 32. Battery; 33. PLC controller; 34. Sliding structure; 341. Semicircular groove; 342. Ball bearing; 343. Limiting plate; 344. Limiting through groove; 4. Multi-stage telescopic rod; 5. Removable guide rail; 51. Guide rail body; 511. Guide groove; 52. Bump; 53. Groove; 5 4. Guide rail bolts; 6. Power structure; 61. Motor; 62. Rotating wheel; 7. Unwinding structure; 71. Unwinding frame; 711. First infrared distance sensor; 72. Unwinding roller; 73. Limiting circular plate; 74. L-shaped mounting frame; 75. Screw; 76. Arc friction block; 77. Telescopic spring; 8. Unwinding tensioning assembly; 81. Tensioning hole; 811. Sealing cover; 82. Tensioning spring; 83. Tensioning moving rod; 84. Tensioning limiting plate; 85. Tensioning roller; 9. Vacuum suction assembly; 91. Mounting plate; 92. Lifting electric cylinder; 93. Horizontal plate; 94. Miniature vacuum pump; 95. Vacuum suction cup. DETAILED DESCRIPTION

[0034] The following is a detailed description in conjunction with the accompanying drawings and specific implementations. In the following description, many specific details are set forth to facilitate a full understanding of the present utility. However, the present utility can be implemented in many other ways different from those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present utility, so the present utility is not limited by the specific embodiments disclosed below.

[0035] The unwinding device with a tensioning component of the present application can be used in occasions such as laying epoxy coils, and of course can also be used in other similar application scenarios. The unwinding device with a tensioning component is described in detail below.

[0036] See attached Figure 1 — Fig.11As shown, a structural schematic diagram of a preferred embodiment of an unwinding device with a tensioning assembly is shown in the present application. The unwinding device with a tensioning assembly comprises a first bracket 1 and a second bracket 2, and is characterized in that it also comprises an unwinding platform 3, a multi-stage telescopic rod 4 installed on the first bracket 1 and the second bracket 2 for connecting the first bracket 1 and the second bracket 2, a detachable guide rail 5 installed on the first bracket 1 and connected to the second bracket 2, a power structure 6 installed on the unwinding platform 3 and corresponding to the detachable guide rail 5, an unwinding structure 7 installed on the top of the unwinding platform 3, an unwinding tensioning assembly 8 installed at the front end of the unwinding platform 3, and a vacuum suction assembly 9 installed at the bottom of the unwinding platform. A lifting assembly 11 is installed on both the first bracket 1 and the second bracket 2, a detection structure 31 is installed at the bottom of the unwinding platform 3, and a battery 32 and a PLC controller 33 are also installed on the unwinding platform 3; the starting position of the unwinding platform 3 is at one end of the detachable guide rail connected to the first bracket 1.

[0037] The utility model connects the first bracket 1 and the second bracket 2 by setting a multi-stage telescopic rod 4, so that the first bracket 1 and the second bracket 2 can move synchronously; by setting a detachable guide rail 5, the length of the guide rail can be set according to the length of the epoxy coil to be laid, thereby increasing the application range of the device; by setting a power structure 6, it is used to drive the unwinding platform 3 to move; by setting an unwinding tensioning component 8, the epoxy coil is tensioned to ensure that the epoxy coil is kept tensioned during the laying process, thereby ensuring the laying quality of the epoxy coil; by setting a vacuum suction component 9 , the epoxy coil can be vacuumed and one end of the epoxy coil can be limited to ensure that the epoxy coil is kept in a tensioned state before laying, so as to avoid the epoxy coil falling and contacting with glue before laying; through the setting of the lifting component 11, it is used to lift the first bracket 1 and the second bracket 2 to separate the roller from the bottom surface, so as to ensure that the first bracket 1 and the second bracket 2 will not move during the laying process; through the setting of the detection structure 31, before the epoxy coil is laid, the laying trajectory of the epoxy coil can be demonstrated to avoid the deviation of the epoxy coil during the laying process. It should be specially noted that the multi-stage telescopic rod 4 in this application is an ordinary telescopic rod, which belongs to the prior art and will not be described in detail in this application.

[0038] See attached Fig.11 As shown, in the utility model, the detachable guide rail 5 includes a plurality of guide rail bodies 51, a protrusion 52 arranged on one end of the guide rail body 51, a groove 53 arranged on the other end of the guide rail body 51, and a guide rail bolt 54 installed on the guide rail body 51 and penetrating the groove 53; a support plate 13 for fixing the guide rail body 51 is installed on the first bracket 1, and a rotating sleeve 21 is movably installed on the second bracket 2 through bolts.

[0039] The utility model can splice multiple guide rail bodies 51 by setting the protrusion 52 and the groove 53 in cooperation with the guide rail bolt 54, thereby increasing the overall length of the guide rail, increasing the stroke of the unwinding platform 3, increasing the length that the device can be laid, and improving the practicality of the device; the support plate 13 is set to fix the guide rail body 51 at the end to prevent the guide rail body 51 from moving during the movement of the unwinding platform 3; the rotating sleeve 21 is movably connected, so that the rotating sleeve 21 can support the guide rail body 51 at the same time, and after the guide rail is extended, the second bracket 2 can be directly pulled to move without disassembly, thereby making the operation more convenient.

[0040] See attached Fig.11 As shown, in the present invention, a guide groove 511 is provided on the guide rail body 51, and the guide groove 511 corresponds to the power structure 6 installed on the unwinding platform 3; the rotating sleeve 21 contacts the bottom surface of the guide rail body 51. The present invention guides the movement of the unwinding platform 3 by setting the guide groove 511.

[0041] See attached Figure 4 and Figure 5 As shown, in the utility model, the power structure 6 includes a motor 61 installed on the top of the unwinding platform 3, a rotating wheel 62 installed on the motor 61, and the rotating wheel 62 is located in the guide groove 511; a sliding structure 34 in contact with the guide rail body 51 is installed at the bottom of the unwinding platform 3.

[0042] The utility model uses the motor 61 as a power source for the movement of the unwinding platform 3 to drive the rotating wheel 62 to rotate, so that the unwinding platform 3 can move along the guide groove 511.

[0043] See attached Figure 3 and Figure 6 As shown, in the utility model, the sliding structure 34 includes a semicircular groove 341 arranged at the bottom of the unwinding platform 3, a ball 342 movably installed in the semicircular groove 341, and a limiting plate 343 installed at the bottom of the unwinding platform 3, and the limiting plate 343 is provided with a limiting groove 344 corresponding to the ball 342, and the ball 342 is in contact with the top surface of the guide rail body 51.

[0044] The utility model provides an installation position for the ball 342 by setting a semicircular groove 341; by setting the ball 342, the friction between the unwinding platform 3 and the top surface of the guide rail body 51 is reduced, so that the movement of the unwinding platform 3 is smoother; by setting the limiting plate 343, it is used to limit the ball 342 to prevent the ball 342 from slipping out of the semicircular groove 341; by setting the limiting through groove 344, the ball 342 is avoided while ensuring that the ball 342 contacts the top surface of the guide rail body 51.

[0045] See attached Figure 1 and Figure 4 As shown, in the utility model, the unwinding structure 7 includes an unwinding frame 71 installed on the top of the unwinding platform 3, an unwinding roller 72 movably installed on the unwinding frame 71, a limiting circular plate 73 installed on the unwinding roller 72, an L-shaped mounting frame 74 installed on the top of the unwinding platform 3 and located beside the unwinding frame 71, a screw 75 installed on the L-shaped mounting frame 74 through a nut, an arc-shaped friction block 76 connected to the other end of the screw 75 and located above the unwinding frame 71, and a telescopic spring 77 sleeved on the screw 75.

[0046] The utility model provides a support for the unwinding roller 72 and a mounting position by setting the unwinding frame 71; the unwinding roller 72 is used to place the epoxy coil; the epoxy coil is limited by the setting of the limiting circular plate 73, and the epoxy coil is limited between the two limiting circular plates 73. It should be particularly noted that the minimum distance between the two limiting circular plates 73 is the width of the epoxy coil, and the distances from the two limiting circular plates 73 to the middle position of the unwinding roller 72 are equal; the L-shaped mounting frame 74 is provided to provide a mounting position for the arc friction block 76; the screw 7 5 is set up, and the arc friction block 76 is installed in cooperation with the nut; the setting of the arc friction block 76 can avoid the situation that the tension of the coil is poor and wrinkles appear when the unwinding roller 72 continues to rotate and unwind due to inertia after the unwinding platform 3 stops moving during the laying process of the coil, thereby improving the laying quality of the epoxy coil; through the setting of the telescopic spring 77, the elastic force of the telescopic spring 77 is applied to the arc friction block 76, thereby increasing the friction between the arc friction block 76 and the limiting circular plate 73, thereby offsetting the inertia of the unwinding roller 72. It should be particularly noted that when the arc friction block 76 moves to the position farthest away from the unwinding rack 71, the minimum distance from the arc friction block 76 to the top surface of the unwinding rack 71 is greater than the diameter of the limiting circular plate 73, and the maximum diameter of the epoxy coil when it is rolled will not exceed the diameter of the limiting circular plate 73, so the epoxy coil can be replaced.

[0047] See attached Figure 4 As shown, in the present invention, the two ends of the telescopic spring 77 are in contact with the L-shaped mounting frame 74 and the arc-shaped friction block 76 respectively; the epoxy coil is rolled between two limiting circular plates 73, and a first infrared distance sensor 711 facing the limiting circular plate 73 is installed on the unwinding frame 71.

[0048] The utility model limits the installation position of the unwinding roller 72 by setting the first infrared distance sensor 711, ensuring that the epoxy coil on the unwinding roller 72 is located in the middle position of the unwinding platform 3, thereby ensuring the accuracy of the detection of the detection structure 31.

[0049] See attached Figure 4 and Figure 7 As shown, in the utility model, the unwinding tensioning assembly 8 includes a tensioning hole 81 arranged at the front end of the unwinding platform 3, a tensioning spring 82 installed in the tensioning hole 81, a tensioning movable rod 83 movably installed in the tensioning hole 81, a tensioning limit plate 84 installed on the tensioning movable rod 83 and adapted to the tensioning hole 81, and a tensioning roller 85 movably installed on the tensioning movable rod 83; the two ends of the tensioning spring 82 are in contact with the bottom of the tensioning hole 81 and the tensioning limit plate 84 respectively, and a sealing cover 811 is installed at the opening of the tensioning hole 81.

[0050] The utility model provides an installation position for the tensioning spring 82 and the tensioning movable rod 83 through the setting of the tensioning hole 81; the tensioning limit plate 84 is set so that the tensioning spring 82 can drive the tensioning movable rod 83 to move; the tensioning roller 85 is set to contact with the epoxy coil so that the tensioning force of the epoxy coil can be adjusted; the sealing cover 811 is set to limit the tensioning limit plate 84 to prevent the tensioning limit plate 84 from separating from the tensioning hole 81.

[0051] The adjustment principle of the unwinding tensioning assembly 8 of the utility model is as follows:

[0052] When the tensioning force of the epoxy coil is too large, the pressure of the epoxy coil on the tensioning roller 85 will increase. At this time, the tensioning roller 85 will drive the tensioning movable rod 83 to move. The tensioning movable rod 83 drives the tensioning limit plate 84 to move, so that the tensioning spring 82 is compressed, and the pressure of the epoxy coil on the tensioning roller 85 is reduced; when the tensioning force of the epoxy coil is too small, the pressure of the epoxy coil on the tensioning roller 85 is reduced. At this time, the elastic restoring force of the tensioning spring 82 will push the tensioning limit plate 84 to move, and the tensioning limit plate 84 drives the tensioning movable rod 83 to move, so that the tensioning movable rod 83 moves outward along the tensioning hole 81, so that the pressure of the epoxy coil on the tensioning roller 85 increases, thereby ensuring that the epoxy coil is in a tensioned state.

[0053] See attached Figure 5 As shown, in the present invention, the detection structure 31 includes two second infrared distance sensors 311 installed at the bottom of the unwinding platform 3 and connected to the PLC controller 33. The distance between the installation positions of the two second infrared distance sensors 311 is equal to the width of the epoxy coil.

[0054] The utility model can demonstrate the laying trajectory of the epoxy coil by setting up two second infrared distance sensors 311, that is, before laying, it can first move through the stroke of the unwinding platform 3. During this process, if the distance sensed by the second infrared distance sensor 311 changes abnormally, it means that there is a problem in the laying of the epoxy coil.

[0055] See attached Figure 5 and Figure 8As shown, in the utility model, the vacuum suction assembly 9 includes a mounting plate 91 installed at the bottom of the unwinding platform 3, a lifting electric cylinder 92 installed on the mounting plate 91, a horizontal plate 93 installed on the lifting electric cylinder 92, a miniature vacuum pump 94 installed on the top of the horizontal plate 93, and a vacuum suction cup 95 installed on the miniature vacuum pump 94.

[0056] The utility model provides a mounting position for the lifting electric cylinder 92 by setting the mounting plate 91; provides a power source for the lifting and lowering movement of the micro vacuum pump 94 by setting the lifting electric cylinder 92, so that the starting end of the epoxy coil can be lowered to contact the glue; through the setting of the micro vacuum pump 94, in conjunction with the vacuum suction cup 95, the starting end of the epoxy coil can be sucked and limited to prevent the coil from contacting the glue before laying.

[0057] See attached Figure 1 and Fig.10 As shown, in the utility model, the lifting assembly 11 includes a lifting electric cylinder 111, a support block 112 installed on the lifting electric cylinder 111, and a rubber anti-sliding block 113 installed at the bottom of the support block 112; a roller 12 is installed at the bottom of the first bracket 1 and the second bracket 2, and the roller 12 is a universal wheel.

[0058] The utility model uses the lifting electric cylinder 111 as the power source for lifting the first bracket 1 and the second bracket 2; and uses the rubber anti-sliding block 113 to increase the friction between the device and the ground to prevent the device from moving during the laying process, thereby ensuring the quality of laying the epoxy coil.

[0059] See attached Figure 1 — Fig.11 As shown, the use process of the utility model is as follows:

[0060] The first step is to move the device to the position where it needs to be laid, and then apply glue to the designated position. Of course, you can also apply glue first, and then move the device to the designated position when the application is completed, and then apply glue;

[0061] The second step is to connect multiple guide rail bodies 51 through guide rail bolts 54 to extend the length of the guide rail. It should be noted that when extending the length of the guide rail, the second bracket 2 needs to be moved to avoid the device from tilting due to center offset.

[0062] The third step is to adjust the positions of the first bracket 1 and the second bracket 2. After the adjustment is completed, the lifting electric cylinder 111 in the lifting assembly 11 is started by an external power supply. The lifting electric cylinder 111 drives the supporting block 112 connected thereto to move downward, so that the rubber anti-sliding block 113 contacts the ground, and the first bracket 1 and the second bracket 2 are lifted.

[0063] In the fourth step, the motor 61 in the power structure 6 is started through the PLC controller 33, and the motor 61 drives the rotating wheel 62 connected thereto to rotate, so that the unwinding platform 3 moves along the guide groove 511, and the second infrared distance sensor 311 monitors until the unwinding platform 3 moves to the end of the guide rail, and then resets; during the movement, if the distance of the second infrared distance sensor 311 changes abnormally, such as suddenly increasing or suddenly decreasing, the PLC controller 33 receives a signal and controls the motor 61 to stop working, indicating that there is a problem there; then the worker controls the unwinding platform 3 through the PLC controller 33, and then starts the lifting cylinder 111 again to make the roller 12 contact with the ground, and repeats the third and fourth steps;

[0064] Step 5: When the fourth step is completed, the epoxy coil is passed around the tension roller 85 and contacts the vacuum suction cup 95, and the micro vacuum pump 94 is controlled by the PLC controller 33 to work to suck the epoxy coil;

[0065] Step 6: The PLC controller 33 controls the lifting cylinder 92 to descend, so that the epoxy coil contacts the glue, and then the motor 61 in the power structure 6 is started to lay the coil until it moves to the specified position. The PLC controller 33 controls the working time of the motor 61 to control the moving distance of the unwinding platform 3.

[0066] In the seventh step, workers manually cut the epoxy coil and manually lay the end of the epoxy coil.

[0067] It should be specially noted that the lifting assembly 11 in the present application is an external power source and is not powered by the battery 32 .

[0068] The above embodiments are descriptions of the present application, not limitations of the present application. Any solution that is a simple transformation of the present application belongs to the protection scope of the present application.

Claims

1. A reeling device with a tensioning assembly, comprising a first bracket (1) and a second bracket (2), It is characterized in that The invention also comprises an unwinding platform (3), a multi-stage telescopic rod (4) mounted on the first bracket (1) and the second bracket (2) for connecting the first bracket (1) and the second bracket (2), a detachable guide rail (5) mounted on the first bracket (1) and connected to the second bracket (2), a power structure (6) mounted on the unwinding platform (3) and corresponding to the detachable guide rail (5), an unwinding structure (7) mounted on the top of the unwinding platform (3), an unwinding tensioning assembly (8) mounted on the front end of the unwinding platform (3), and a vacuum suction assembly (9) mounted on the bottom of the unwinding platform. The first bracket (1) and the second bracket (2) are both mounted with a lifting assembly (11), a detection structure (31) is mounted at the bottom of the unwinding platform (3), and a storage battery (32) and a PLC controller (33) are also mounted on the unwinding platform (3); the starting point of the unwinding platform (3) is at one end where the detachable guide rail is connected to the first bracket (1).

2. The unwinding device with a tensioning assembly according to claim 1, It is characterized in that The detachable guide rail (5) comprises a plurality of guide rail bodies (51), a protrusion (52) arranged on one end of the guide rail body (51), a groove (53) arranged on the other end of the guide rail body (51), and a guide rail bolt (54) installed on the guide rail body (51) and penetrating the groove (53); A support plate (13) for fixing the guide rail body (51) is mounted on the first bracket (1), and a rotating sleeve (21) is movably mounted on the second bracket (2) via bolts.

3. The unwinding device with a tensioning assembly according to claim 2, It is characterized in that The guide rail body (51) is provided with a guide groove (511), and the guide groove (511) corresponds to a power structure (6) installed on the unwinding platform (3); the rotating sleeve (21) is in contact with the bottom surface of the guide rail body (51).

4. The unwinding device with a tensioning assembly according to claim 3, It is characterized in that The power structure (6) comprises a motor (61) mounted on the top of the unwinding platform (3), and a rotating wheel (62) mounted on the motor (61), wherein the rotating wheel (62) is located in the guide groove (511); and a sliding structure (34) in contact with the guide rail body (51) is mounted on the bottom of the unwinding platform (3).

5. The unwinding device with a tensioning assembly according to claim 4, It is characterized in that The sliding structure (34) comprises a semicircular groove (341) arranged at the bottom of the unwinding platform (3), a ball (342) movably mounted in the semicircular groove (341), and a limiting plate (343) mounted at the bottom of the unwinding platform (3), wherein a limiting through groove (344) corresponding to the ball (342) is provided on the limiting plate (343), and the ball (342) contacts the top surface of the guide rail body (51).

6. The unwinding device with a tensioning assembly according to claim 1, It is characterized in that The unwinding structure (7) comprises an unwinding frame (71) mounted on the top of the unwinding platform (3), an unwinding roller (72) movably mounted on the unwinding frame (71), a limiting circular plate (73) mounted on the unwinding roller (72), an L-shaped mounting frame (74) mounted on the top of the unwinding platform (3) and located beside the unwinding frame (71), a screw rod (75) mounted on the L-shaped mounting frame (74) via a nut, an arc-shaped friction block (76) connected to the other end of the screw rod (75) and located above the unwinding frame (71), and a telescopic spring (77) sleeved on the screw rod (75).

7. The unwinding device with a tensioning assembly according to claim 6, It is characterized in that The two ends of the telescopic spring (77) are in contact with the L-shaped mounting frame (74) and the arc-shaped friction block (76) respectively; the epoxy coil is rolled between the two limiting circular plates (73), and the unwinding frame (71) is provided with a first infrared distance sensor (711) facing the limiting circular plates (73).

8. The unwinding device with a tensioning assembly according to claim 1, It is characterized in that The unwinding tensioning assembly (8) comprises a tensioning hole (81) arranged at the front end of the unwinding platform (3), a tensioning spring (82) installed in the tensioning hole (81), a tensioning movable rod (83) movably installed in the tensioning hole (81), a tensioning limit plate (84) installed on the tensioning movable rod (83) and adapted to the tensioning hole (81), and a tensioning roller (85) movably installed on the tensioning movable rod (83).

9. The unwinding device with a tensioning assembly according to claim 8, It is characterized in that The two ends of the tensioning spring (82) are in contact with the bottom of the tensioning hole (81) and the tensioning limit plate (84) respectively, and a sealing cover (811) is installed at the opening of the tensioning hole (81).

10. The unwinding device with a tensioning assembly according to claim 1, It is characterized in that The detection structure (31) comprises two second infrared distance sensors (311) installed at the bottom of the unwinding platform (3) and connected to the PLC controller (33), and the distance between the installation positions of the two second infrared distance sensors (311) is equal to the width of the epoxy coil; The vacuum suction assembly (9) comprises a mounting plate (91) mounted on the bottom of the unwinding platform (3), a lifting electric cylinder (92) mounted on the mounting plate (91), a horizontal plate (93) mounted on the lifting electric cylinder (92), a micro vacuum pump (94) mounted on the top of the horizontal plate (93), and a vacuum suction cup (95) mounted on the micro vacuum pump (94); The lifting assembly (11) comprises a lifting electric cylinder (111), a support block (112) mounted on the lifting electric cylinder (111), and a rubber anti-sliding block (113) mounted on the bottom of the support block (112); Rollers (12) are installed at the bottom of the first bracket (1) and the second bracket (2).

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