Roll material unwinding equipment

Abstract

The invention discloses roll material unwinding equipment, a roll material is fixed on a roll material shaft through a tensioning structure, the roll material unwinding equipment comprises a bracket device, a first winding device, a second winding device, a first winding device and a second winding device, the fixing device is used for fixing the first end of the winding shaft; the first conveying device comprises a first conveying mechanism and a first lifting mechanism; at the first position, the first conveying mechanism is located below the coil stock, so that when the tensioning structure is released to relieve the tensioning force between the coil stock shaft and the coil stock, the first bracket can support the first end of the coil stock shaft, the second bracket can support the second end of the coil stock shaft, and the fixing device fixes the first end of the coil stock shaft; and at the second position, the first conveying mechanism is in contact with the coil stock, so that the first conveying mechanism can convey the coil stock after the support of the second bracket on the second end of the coil stock shaft is released, and the coil stock is unwound from the coil stock shaft. According to the coil stock unwinding equipment, the production efficiency is improved, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of glass fiber chopped strand mat production equipment, and in particular to a coil unwinding equipment. Background Art

[0002] Chopped strand glass fiber mat is made of chopped and bonded glass fiber yarns. It is widely used in military facilities, aerospace, wind power generation, chemical industry, oil pipeline transportation, automobile manufacturing, electrical and sanitary ware industries. In the winding process of chopped strand glass fiber mat in the production process, it is necessary to remove the wound felt roll product from the felt reel and then put a new paper tube on the felt reel. At present, the unwinding process of the felt roll product is mainly completed manually. Due to the heavy weight of the felt roll product, the unwinding process of the felt roll has the problems of high labor intensity and waste of labor costs. Summary of the invention

[0003] In order to solve the above technical problems, the present application provides a coil unwinding device, which can realize automatic unwinding of coils, improve production efficiency and reduce manual labor intensity.

[0004] The present application provides a coil unwinding device, wherein the coil is fixed on a coil shaft by a tensioning structure, and the coil unwinding device comprises:

[0005] A bracket device, the bracket device comprising a first bracket and a second bracket;

[0006] A fixing device, disposed on a side of the first bracket away from the second bracket, the fixing device being used to fix the first end of the coil shaft;

[0007] A first conveying device is disposed between the first bracket and the second bracket, the first conveying device comprises a first conveying mechanism and a first lifting mechanism, the first lifting mechanism is connected to the first conveying mechanism, and is used to drive the first conveying mechanism to reciprocate between a first position and a second position in a vertical direction;

[0008] In the first position, the first conveying mechanism is located below the coil, so that when the tensioning structure is released to release the tensioning force between the coil shaft and the coil, the first bracket can support the first end of the coil shaft, the second bracket can support the second end of the coil shaft, and the fixing device fixes the first end of the coil shaft;

[0009] In the second position, the first conveying mechanism contacts the coil so that after the second bracket releases the support of the second end of the coil shaft, the first conveying mechanism can convey the coil so that the coil is unwound from the coil shaft.

[0010] In some embodiments of the present application, the first bracket includes:

[0011] Support block;

[0012] A first support frame, disposed on the support block, wherein the first support frame is rotatably connected to the support block;

[0013] The bracket device also includes a first driving mechanism, which is fixedly connected to the support block and is used to drive the support block to move in a horizontal direction perpendicular to the axis of the coil shaft, so as to push the support block to move after the coil is unwound, thereby driving the coil shaft located on the first support frame to move in a circular motion around the fixing device, so as to sleeve a core shaft on the coil shaft.

[0014] In some embodiments of the present application, the first bracket further includes a distance sensor, and the distance sensor is used to sense the moving distance of the support block to control the rotation angle of the coil shaft.

[0015] In some embodiments of the present application, the second bracket includes a second support frame and a second lifting mechanism, and the second lifting mechanism is connected to the second support frame and is used to drive the second support frame to move in a vertical direction;

[0016] When the first conveying mechanism is located at the first position, the second support frame can support the second end of the coil shaft;

[0017] When the first conveying mechanism is located at the second position, the second lifting mechanism drives the second support frame to move downward so that the top surface of the second support frame is lower than the top surface of the first conveying mechanism to release the support of the second end of the coil shaft by the second support frame.

[0018] In some embodiments of the present application, the coil shaft is provided with a cavity, and a plurality of grooves connected to the cavity are provided in the circumference of the coil shaft, and the tensioning structure includes:

[0019] An elastic member, one end of which is connected to the coiling shaft;

[0020] A tensioning block, which is disposed in the slot and connected to the other end of the elastic member;

[0021] An inflatable component connected to the first end of the coil shaft;

[0022] When the inflation component introduces gas into the cavity, the tensioning block is pushed out of the groove body and abuts against the surface of the core shaft of the coil to achieve tensioning of the coil; when the inflation component stops introducing gas into the cavity, the tensioning block is reset under the action of the elastic member to release the tensioning force between the coil shaft and the coil.

[0023] In some embodiments of the present application, the fixing device includes a holding ring and a second driving mechanism, and the second driving mechanism drives the holding ring to open or close to achieve clamping or releasing of the coil shaft.

[0024] In some embodiments of the present application, the coil unwinding equipment also includes a core sleeve device, which is located at one end of the first conveying device away from the fixing device, and the core sleeve device includes at least one gripper, and at least one of the grippers is used to grab the core shaft and sleeve the core shaft on the coil shaft.

[0025] In some embodiments of the present application, the coil unwinding equipment also includes a second conveying device, which is located at an end of the first conveying device away from the fixing device, and the second conveying device is used to convey the coil conveyed by the first conveying device to the next process.

[0026] In some embodiments of the present application, the coil unwinding equipment also includes a lifting device, which is used to remove the coil connected to the coil shaft from the coil making equipment and move the coil connected to the coil shaft to the bracket device.

[0027] In some embodiments of the present application, the coil unwinding device also includes a controller, and the fixing device, the lifting device and the controller are all electrically connected.

[0028] The technical solution provided by this application may have the following beneficial effects:

[0029] The present application can support and fix the coil by means of the first bracket, the second bracket and the fixing device; the coil shaft is fixed by means of the second bracket and the fixing device, and the coil can be unrolled from the coil shaft by means of the first conveying device, thereby improving production efficiency and reducing manual labor intensity.

[0030] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0032] Figure 1It is a schematic structural diagram of a coil unwinding device according to an exemplary embodiment.

[0033] Figure 2 The figure is a schematic diagram showing the action of placing a coil on a first conveying device according to an exemplary embodiment.

[0034] Figure 3 is a schematic diagram of the action of unwinding a coil according to an exemplary embodiment.

[0035] Figure 4 The figure is a schematic structural diagram of a fixing device at one angle according to an exemplary embodiment.

[0036] Figure 5 is a schematic structural diagram of a fixing device from another angle according to an exemplary embodiment.

[0037] Figure 6 It is a schematic diagram showing the angle deviation of the first bracket and the action of the sleeve core according to an exemplary embodiment.

[0038] Figure 7 is a schematic diagram showing the action of unwinding a coil to a second conveying device according to an exemplary embodiment.

[0039] Figure 8 The figure is a schematic diagram of the action of coil material transportation according to an exemplary embodiment.

[0040] Fig. 9 The figure is a schematic diagram of the action of a lifting device preparing to lift a core shaft and a coil shaft according to an exemplary embodiment.

[0041] Fig.10 The figure is a schematic diagram of the action of a lifting device lifting a core shaft and a coil shaft according to an exemplary embodiment.

[0042] Reference numerals

[0043] 1. Coil; 11. Mandrel; 2. Coil shaft; 3. Tension structure; 31. Tension block; 32. Inflatable component; 321. Inflatable joint; 322. Air pipeline; 4. Bracket device; 41. First bracket; 411. Support block; 412. First support frame; 42. Second bracket; 421. Second support frame; 422. Second lifting mechanism; 43. First driving mechanism; 44. Frame; 45. Slider; 5. Fixing device; 51. Holding ring; 52. Second driving mechanism; 6. First conveying device; 61. First conveying mechanism; 62. First lifting mechanism; 63. First servo motor; 7. Core sleeve device; 8. Second conveying device; 81. Second servo motor; 82. Roller; 9. Hoisting device;

[0044] 10, first position; 20, second position. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application. It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments can be arbitrarily combined with each other.

[0046] When using a roll making device to make a roll, a core shaft (such as a paper tube) is sleeved on a roll shaft, and the core shaft and the roll shaft are fixed by a tensioning structure, and then the cloth (such as felt cloth) is wound on the core shaft to form a roll (such as a felt roll). When unwinding, the roll is taken off the roll shaft together with the core shaft, and then a new core shaft is sleeved on the roll shaft. At present, the above work is all done manually, which has the problems of high labor intensity and waste of labor costs.

[0047] Based on this, the present application provides a coil unwinding device, which includes a bracket device, a fixing device and a first conveying device, the bracket device includes a first bracket and a second bracket; the fixing device is arranged on the side of the first bracket away from the second bracket, and is used to fix the first end of the coil shaft; the first conveying device is arranged between the first bracket and the second bracket, the first conveying device includes a first conveying mechanism and a first lifting mechanism, the first lifting mechanism is connected to the first conveying mechanism, and is used to drive the first conveying mechanism to reciprocate between a first position and a second position in a vertical direction; in the first position, the first conveying mechanism is located below the coil, so that when the tensioning structure is released to release the tensioning force between the coil shaft and the coil, the first bracket can support the first end of the coil shaft, the second bracket can support the second end of the coil shaft, and the fixing device fixes the first end of the coil shaft; in the second position, the first conveying mechanism contacts the coil, so that after the support of the second bracket for the second end of the coil shaft is released, the first conveying mechanism can convey the coil, so that the coil is unwound from the coil shaft. The present application can unwind the coiled material through the coil unwinding device, thereby improving production efficiency and reducing manual labor intensity.

[0048] Some specific implementation modes described below are intended to facilitate those skilled in the art to understand the present embodiment, and the present embodiment is not limited to some specific implementation modes described below.

[0049] like Figure 1-Figure 3As shown, an exemplary embodiment of the present application provides a coil unwinding device, in which a coil 1 is fixed on a coil shaft 2 by a tensioning structure 3, and the coil unwinding device includes a bracket device 4, a fixing device 5 and a first conveying device 6, wherein the bracket device 4 includes a first bracket 41 and a second bracket 42; the fixing device 5 is arranged on a side of the first bracket 41 away from the second bracket 42, and is used to fix the first end of the coil shaft 2; the first conveying device 6 is arranged between the first bracket 41 and the second bracket 42, and the first conveying device 6 includes a first conveying mechanism 61 and a first lifting mechanism 62, and the first lifting mechanism 62 is connected to the first conveying mechanism 61, and is used to drive the first conveying mechanism 61 to reciprocate between a first position 10 and a second position 20 in a vertical direction; as shown Figure 2 As shown, in the first position 10, the first conveying mechanism 61 is located below the coil 1, so that when the tensioning structure 3 is released to release the tensioning force between the coil shaft 2 and the coil 1, the first bracket 41 can support the first end of the coil shaft 2, the second bracket 42 can support the second end of the coil shaft 2, and the fixing device 5 fixes the first end of the coil shaft 2; Figure 3 As shown, in the second position 20 , the first conveying mechanism 61 contacts the coil 1 so that after the second bracket 42 releases the support for the second end of the coil shaft 2 , the first conveying mechanism 61 can convey the coil 1 so that the coil 1 is unwound from the coil shaft 2 .

[0050] In this embodiment, when in the first position 10, the tensioning structure 3 releases the tensioning force between the coil shaft 2 and the coil 1, supports the first end of the coil shaft 2 by the first bracket 41, and supports the second end of the coil shaft 2 by the second bracket 42, so as to support the coil 1 located on the coil shaft 2; when in the second position 20, the second bracket 42 releases the support for the second end of the coil shaft 2 to make way for the conveyance of the coil 1, and drives the first conveying mechanism 61 to move in a vertical upward direction by the first lifting mechanism 62, so that the first conveying mechanism 61 contacts the coil 1, and the coil 1 is conveyed by the first conveying mechanism 61, so that the coil 1 is unwound from the coil shaft 2.

[0051] Among them, Figure 1 As shown, the bracket device 4 also includes a frame 44, and the first bracket 41 and the fixing device 5 are arranged on the frame 44 at intervals. In this embodiment, the first lifting mechanism 62 can use a lifting cylinder, and two lifting cylinders can be provided, which are respectively provided at both ends of the first conveying mechanism 61 to improve the stability of the movement of the first conveying mechanism 61; the first conveying device 6 can use a belt conveyor, and the belt conveyor uses the first servo motor 63 as a power output to drive the belt to rotate.

[0052] In one embodiment, if Figure 1 and Figure 2As shown, the first bracket 41 includes a support block 411 and a first support frame 412 arranged on the support block 411, and the first support frame 412 is rotatably connected to the support block 411; the bracket device 4 also includes a first driving mechanism 43, and the first driving mechanism 43 is fixedly connected to the support block 411, and is used to drive the support block 411 to move in a horizontal direction perpendicular to the axis of the coil shaft 2, so as to push the support block 411 to move after the coil 1 is unwound, so as to drive the coil shaft 2 located on the first support frame 412 to make a circular motion around the fixing device 5, so as to sleeve the core shaft 11 on the coil shaft 2.

[0053] In this embodiment, after the coil 1 is unwound, the first end of the coil shaft 2 is still supported by the first bracket 41 and fixed by the fixing device 5. In order to facilitate the installation of the new core shaft 11 on the coil shaft 2, the support block 411 is driven by the first driving mechanism 43 to move in a horizontal direction perpendicular to the axis of the coil shaft 2. Since the first support frame 412 is rotatably connected to the support block 411, and the first end of the coil shaft 2 is fixed to the fixing device 5, when the support block 411 moves in a horizontal direction perpendicular to the axis of the coil shaft 2, the coil shaft 2 uses the fixing device 5 as a fulcrum and only rotates in the horizontal direction to form a cantilever beam support action state.

[0054] The first bracket 41 is a split structure with upper and lower parts, the support block 411 is arranged on the frame 44, the first support frame 412 is located above the support block 411, and the first support frame 412 and the support block 411 can be connected to each other in rotation through a rotating shaft and a bearing. The bracket device 4 also includes a slider 45 arranged on the frame 44, the support block 411 is fixedly connected to the slider 45, one end of the slider 45 is fixedly connected to the support block 411, and the other end of the slider 45 is fixedly connected to the first driving mechanism 43, and the first driving mechanism 43 drives the support block 411 to move by driving the slider 45. In addition, the first support frame 412 is provided with a U-shaped opening opening upward, and its opening width is the same as the diameter of the end of the coil shaft 2, which can ensure accurate positioning.

[0055] The coil shaft 2 can be offset by 10°-20° relative to its original axis. The first driving mechanism 43 can be a driving cylinder, and the offset angle of the coil shaft 2 can be controlled by controlling the stroke of the driving cylinder and the distance between the driving cylinder and the fixing device 5. For example, the stroke of the driving cylinder can be set to 80 mm, and the distance between the driving cylinder and the fixing device 5 can be set to 284 mm, then the coil shaft 2 can be offset by 15° in the direction of its original axis.

[0056] In one embodiment, the first bracket 41 further includes a distance sensor, and the distance sensor is used to sense the moving distance of the support block 411 to control the rotation angle of the coil shaft 2 .

[0057] In this embodiment, the distance sensor can be a photoelectric sensor. The photoelectric sensor is a sensor based on the photoelectric effect. When it is irradiated with visible light, a photoelectric effect will be generated, and the light signal will be converted into an electrical signal and output. By setting two photoelectric sensors and setting the photoelectric sensors on the cylinder wall of the driving cylinder, the distance between the two photoelectric sensors is used as the stroke control.

[0058] In one embodiment, the second bracket 42 includes a second support frame 421 and a second lifting mechanism 422, and the second lifting mechanism 422 is connected to the second support frame 421, and is used to drive the second support frame 421 to move in the vertical direction; when the first conveying mechanism 61 is located at the first position 10, the second support frame 421 can support the second end of the coil shaft 2; when the first conveying mechanism 61 is located at the second position 20, the second lifting mechanism 422 drives the second support frame 421 to move downward, so that the top surface of the second support frame 421 is lower than the top surface of the first conveying mechanism 61, so as to release the support of the second support frame 421 for the second end of the coil shaft 2.

[0059] In this embodiment, the second support frame 421 can be lifted and lowered by the second lifting mechanism 422. When the first conveying mechanism 61 is located at the first position 10, the second support frame 421 can support the second end of the coil shaft 2; when the first conveying mechanism 61 is located at the second position 20, the second lifting mechanism 422 drives the second support frame 421 to move downward, so that the top surface of the second support frame 421 is lower than the top surface of the first conveying mechanism 61, so as to make way for the conveying of the coil 1, so that the coil 1 can be output by the end of the first conveying mechanism 61 close to the second support frame 421. Among them, the second support frame 421 is also provided with a U-shaped opening opening upward, and its opening width is the same as the diameter of the end of the coil shaft 2, which can ensure accurate positioning. The second lifting mechanism 422 can be a lifting cylinder.

[0060] In one embodiment, if Figure 1 As shown, the coil shaft 2 is provided with a cavity, and a plurality of grooves connected to the cavity are provided circumferentially of the coil shaft 2. The tensioning structure 3 includes an elastic member, a tensioning block 31 and an inflation component 32. One end of the elastic member is connected to the coil shaft 2; the tensioning block 31 is arranged in the groove, and the tensioning block 31 is connected to the other end of the elastic member; the inflation component 32 is connected to the first end of the coil shaft 2; when the inflation component 32 introduces gas into the cavity, the tensioning block 31 is pushed out of the groove and abuts against the surface of the core shaft 11 of the coil 1 to achieve tensioning of the coil 1; when the inflation component 32 stops introducing gas into the cavity, the tensioning block 31 is reset under the action of the elastic member to release the tensioning force between the coil shaft 2 and the coil 1.

[0061] In this embodiment, the gas introduced into the cavity by the inflatable component 32 may be, for example, compressed air; the inflatable component 32 includes an inflatable joint 321 and an air pipeline 322, and the inflatable component 32 is moved to the first end of the coil shaft 2 through a sliding device (e.g., a linear bearing conveying device) and connected to the first end of the coil shaft 2, and compressed air is introduced into the cavity through the inflatable component 32, and under the action of the gas pressure, the tension block 31 is pushed out of the groove body and abuts against the surface of the core shaft 11 of the coil 1 to achieve the tensioning of the coil 1, and the elastic member is squeezed at this time; after the compressed air is released, the tension block 31 is reset under the action of the elastic member to release the tensioning force between the coil shaft 2 and the coil 1. The elastic member may be, for example, a spring.

[0062] In one embodiment, if Figure 1 , Figure 4 and Figure 5 As shown, the fixing device 5 includes a holding ring 51 and a second driving mechanism 52 . The second driving mechanism 52 drives the holding ring 51 to open or close so as to clamp or release the coil shaft 2 .

[0063] In this embodiment, the holding ring 51 is composed of two approximately semicircular structures, and the opening and closing of the holding ring 51 is controlled by the second driving mechanism 52 and the electromagnetic valve to achieve the clamping or release of the coil shaft 2; the spacing between the two semicircular structures when opened can be sufficient to allow the end of the coil shaft 2 to be inserted. The second driving mechanism 52 can be, for example, a rotary cylinder to make the two semicircular structures move in opposite directions to open the holding ring 51; the signal control point for its opening can use a photoelectric sensor.

[0064] In one embodiment, if Figure 1 and Figure 6 As shown, the coil unwinding device also includes a core sleeve device 7, which is located at the end of the first conveying device 6 away from the fixing device 5. The core sleeve device 7 includes at least one gripper, and the at least one gripper is used to grab the core shaft 11 and sleeve the core shaft 11 on the coil shaft 2.

[0065] In this embodiment, at least one gripper of the core sleeve device 7 can grab the core shaft 11 and sleeve the core shaft 11 on the coil shaft 2. The number of grippers is not limited and can be one, two, etc. For example, Figure 1The number of the grippers is set to two. The mandrel 11 can be provided by a feeding mechanism (not shown in the figure, the feeding mechanism can also be replaced by manual labor). The feeding mechanism is arranged on one side of the first conveying device 6, and the feeding mechanism includes a hopper, a material rack and a chain line. Limit plates are installed on both sides of the hopper, and the width between the two limit plates is adjusted by a motor; multiple mandrels 11 are placed in the hopper of the feeding mechanism, and the hopper is conveyed to the material rack via the chain line. The gripper is driven by a driving mechanism, and the position of the gripper is detected by a position sensor. The driving mechanism, the first driving mechanism 43, and the position sensor are all electrically connected to the controller. When the position sensor detects the position of the gripper and moves the mandrel 11 on the gripper to the specified position, the controller controls the first driving mechanism 43 to operate, so that the coil shaft 2 rotates around the fixing device 5, and the gripper is driven to move by the driving mechanism to move the mandrel 11 to the coil shaft 2.

[0066] In one embodiment, if Figure 3 and Figure 7 As shown, the coil unwinding device further comprises a second conveying device 8, which is located at one end of the first conveying device 6 away from the fixing device 5, and is used to convey the coil 1 conveyed by the first conveying device 6 to the next process.

[0067] In this embodiment, the coil 1 unwound by the first conveying device 6 can be conveyed to the next process by the second conveying device 8, which reduces the labor intensity. The second conveying device 8 can use a roller conveyor belt, and use the second servo motor 81 as the power output to drive multiple rollers 82 to rotate.

[0068] In one embodiment, if Figure 8 As shown, the coil unwinding device further includes a hoisting device 9, which is used to remove the coil 1 connected to the coil shaft 2 from the coil making device and move the coil 1 connected to the coil shaft 2 to the bracket device 4.

[0069] In this embodiment, the lifting device 9 can be hoisted on both ends of the coil shaft 2, and the coil shaft 2 and the coil 1 can be removed from the coil making equipment and moved downward to the bracket device 4, thereby reducing the labor intensity. Among them, the lifting device 9 can use a hook and a driving mechanism that drives the hook to operate. The descent signal of the hook will give an opening signal to the holding ring 51, so that when the hook moves the coil shaft 2 to the bracket device 4, the holding ring 51 can be in an open state, so that the holding ring 51 can fix the first end of the coil shaft 2. In this embodiment, the number of hooks is not limited, and can be one, two, etc. For example, Figure 1 The number of middle hooks is set to two.

[0070] like Fig. 9 and Fig.10As shown, when the unwinding is completed, the hoisting device 9 can also be used to lift the coil shaft 2 with the new core shaft 11 from the bracket device 4 and move it to the coil making device.

[0071] In one embodiment, the coil unwinding device further includes a controller, and the fixing device 5 and the lifting device 9 are electrically connected to the controller.

[0072] In this embodiment, after the hoisting device 9 hoists the coil shaft 2 and the coil 1 to the bracket device 4, the controller controls the fixing device 5 to start to fix the coil shaft 2, so as to improve the automation degree of the equipment.

[0073] An exemplary embodiment of the present application provides a working process of a coil unwinding device:

[0074] The hoisting device 9 lifts the two ends of the coil shaft 2, removes the coil shaft 2 and the coil 1 from the coil making device, and moves them to the top of the bracket device 4. The second driving mechanism 52 drives the ring 51 to open. At this time, the first bracket 41 and the second bracket 42 and the open end of the ring 51 are all kept on the same axis; the first conveying mechanism 61 is located at the first position 10. The hoisting device 9 hoists the coil shaft 2 and the coil 1 to the first bracket 41 and the second bracket 42. At the same time, the first end of the coil shaft 2 is placed in the ring 51. The second driving mechanism 52 drives the ring 51 to close, and the hoisting device 9 returns to the waiting position. The inflatable component 32 stops supplying compressed air to the coil shaft 2, and the tension block 31 is reset under the action of the elastic member to release the tension between the coil shaft 2 and the coil 1. The second lifting mechanism 422 drives the second support frame 421 to move downward. At this time, the coil shaft 2 is supported by the ring 51 and the first bracket 41. The first lifting mechanism 62 drives the first conveying mechanism 61 to move upward to the second position 20, so that the first conveying mechanism 61 contacts the coil 1, and the first conveying mechanism 61 moves in a direction away from the first bracket 41 to unwind the coil 1 together with the core shaft 11 from the coil shaft 2. The second conveying device 8 continues to convey the coil 1 conveyed by the first conveying mechanism 61 to the next process.

[0075] After the coil 1 is unwound from the coil shaft 2, the gripper grabs the new mandrel 11 to the specified position; the first drive mechanism 43 drives the support block 411 to move in a horizontal direction perpendicular to the axis of the coil shaft 2, so that the coil shaft 2 rotates around the holding ring 51 to achieve the angular offset of the coil shaft 2. At this time, the axis of the coil shaft 2 coincides with the axis of the mandrel 11 located on the gripper, and the gripper sleeves the mandrel 11 on the coil shaft 2 to complete the sleeve action of the mandrel 11. At this time, the first drive mechanism 43 drives the support block 411 to reset, so that the coil shaft 2 returns to the initial position. The first lifting mechanism 62 drives the first conveying mechanism 61 to move downward to the first position 10, and the second lifting mechanism 422 drives the second support frame 421 to move upward, and the second end of the coil shaft 2 is supported by the second support frame 421. The inflatable assembly 32 is plugged into the first end of the coil shaft 2, and compressed air is introduced into the cavity of the coil shaft 2, so that the tension block 31 is pushed out of the groove and abuts against the core shaft 11 to achieve tensioning of the core shaft 11. The hoisting device 9 hoists the two ends of the coil shaft 2, hoists the coil shaft 2 and the core shaft 11 away, and moves them to the roll making device.

[0076] In summary, the coil unwinding device of the present application can realize the automatic withdrawal of the coil 1 from the coil shaft 2, and realize the automatic sleeve of the coil shaft 2 by angularly offsetting the coil shaft 2. The labor intensity of workers is reduced, the automation degree of the production line is improved, and the production efficiency is improved.

[0077] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the embodiments disclosed herein. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and embodiments are intended to be exemplary only, and the true scope and spirit of the present application are indicated by the claims of the present application.

[0078] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A coil unwinding device, characterized in that: The coil is fixed on the coil shaft by a tensioning structure, and the coil unwinding device comprises: A bracket device, the bracket comprising a first bracket and a second bracket; A fixing device, disposed on a side of the first bracket away from the second bracket, the fixing device being used to fix the first end of the coil shaft; A first conveying device is disposed between the first bracket and the second bracket, the first conveying device comprises a first conveying mechanism and a first lifting mechanism, the first lifting mechanism is connected to the first conveying mechanism, and is used to drive the first conveying mechanism to reciprocate between a first position and a second position in a vertical direction; In the first position, the first conveying mechanism is located below the coil, so that when the tensioning structure is released to release the tensioning force between the coil shaft and the coil, the first bracket can support the first end of the coil shaft, the second bracket can support the second end of the coil shaft, and the fixing device fixes the first end of the coil shaft; In the second position, the first conveying mechanism contacts the coil so that after the second bracket releases the support of the second end of the coil shaft, the first conveying mechanism can convey the coil so that the coil is unwound from the coil shaft.

2. The coil unwinding device according to claim 1, characterized in that: The first bracket comprises: Support block; A first support frame, disposed on the support block, wherein the first support frame is rotatably connected to the support block; The bracket device also includes a first driving mechanism, which is fixedly connected to the support block and is used to drive the support block to move in a horizontal direction perpendicular to the axis of the coil shaft, so as to push the support block to move after the coil is unwound, thereby driving the coil shaft located on the first support frame to move in a circular motion around the fixing device, so as to sleeve a core shaft on the coil shaft.

3. The coil unwinding device according to claim 2, characterized in that: The first bracket further includes a distance sensor, and the distance sensor is used to sense the moving distance of the support block to control the rotation angle of the coil shaft.

4. The coil unwinding device according to claim 1, characterized in that: The second bracket includes a second support frame and a second lifting mechanism, and the second lifting mechanism is connected to the second support frame and is used to drive the second support frame to move in a vertical direction; When the first conveying mechanism is located at the first position, the second support frame can support the second end of the coil shaft; When the first conveying mechanism is located at the second position, the second lifting mechanism drives the second support frame to move downward so that the top surface of the second support frame is lower than the top surface of the first conveying mechanism to release the support of the second end of the coil shaft by the second support frame.

5. The coil unwinding device according to claim 1, characterized in that: The coil shaft is provided with a cavity, and a plurality of grooves connected to the cavity are provided around the coil shaft, and the tensioning structure includes: An elastic member, one end of which is connected to the coiling shaft; A tensioning block, which is disposed in the slot and connected to the other end of the elastic member; An inflatable component connected to the first end of the coil shaft; When the inflation component introduces gas into the cavity, the tensioning block is pushed out of the groove body and abuts against the surface of the core shaft of the coil to achieve tensioning of the coil; when the inflation component stops introducing gas into the cavity, the tensioning block is reset under the action of the elastic member to release the tensioning force between the coil shaft and the coil.

6. The coil unwinding device according to claim 1, characterized in that: The fixing device comprises a holding ring and a second driving mechanism, wherein the second driving mechanism drives the holding ring to open or close so as to clamp or release the coil shaft.

7. The coil unwinding device according to claim 1 or 2, characterized in that: The coil unwinding device also includes a core sleeve device, which is located at one end of the first conveying device away from the fixing device. The core sleeve device includes at least one gripper, and at least one gripper is used to grab the core shaft and sleeve the core shaft on the coil shaft.

8. The coil unwinding device according to claim 1, characterized in that: The coil unwinding equipment further comprises a second conveying device, which is located at an end of the first conveying device away from the fixing device, and is used to convey the coil conveyed by the first conveying device to the next process.

9. The coil unwinding device according to claim 1, characterized in that: The coil unwinding device also includes a hoisting device, which is used to remove the coil connected to the coil shaft from the coil making device and move the coil connected to the coil shaft to the bracket device.

10. The coil unwinding device according to claim 9, characterized in that: The coil unwinding device further comprises a controller, and the fixing device, the hoisting device and the controller are all electrically connected.

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