An uncoiler

Abstract

The utility model relates to uncoiling device technical field discloses a kind of uncoiling equipment, including rack, rack is equipped with expansion and contraction subassembly and limiting component;The number of expansion and contraction subassembly is at least 2, and one side of rack is uncoiling area, and rack is connected with support frame through rotating component, and expansion and contraction subassembly carries coil material and switches in uncoiling area through rotating component;Uncoiling area is equipped with material guiding subassembly, and material guiding subassembly is used for the material guiding after the uncoiling of coil material;The number of limiting component matches the number of expansion and contraction subassembly, and limiting component is located at the side of expansion and contraction subassembly, and limiting component adjusts limiting interval according to the width or thickness of the coil material, and the end surface of the both sides of coil material is limited or circumferential surface is limited.This scheme rotates rack through rotating component, switches the coil material carried by expansion and contraction subassembly to uncoiling area and carries out uncoiling, simultaneously carries out coil material feeding to idle expansion and contraction subassembly, makes uncoiling operation keep continuity, realizes that coil material feeding and uncoiling are carried out simultaneously, and improves uncoiling efficiency.

Description

Technical Field

[0001] This utility model relates to the field of unwinding device technology, and in particular to an unwinding device. Background Technology

[0002] Uncoiling units are core equipment in industrial production lines used to process rolled materials (such as metal coils, plastic films, and paper). Their main function is to smoothly unwind the rolls and continuously convey them to subsequent processes (such as straightening, shearing, and stamping). Uncoiling units use expansion and contraction cylinders to support the rolled material; existing uncoiling equipment typically has only one expansion and contraction cylinder.

[0003] Chinese Patent CN202122145335.0 discloses a double-head uncoiler, comprising: a column, a rotating mechanism and a limiting mechanism mounted on the column, a main shaft passing through the rotating mechanism, and two support frames mounted on the main shaft. Each support frame includes: an inner baffle, an outer baffle, support arms, and a sleeve. The inner baffle is connected to the main shaft. Four inner wing arms with elongated holes are mounted on the inner baffle. T-shaped sleeves are slidably mounted in the elongated holes and connected to the support arms. A sleeve is mounted on the main shaft, and four hinge seats are mounted on the sleeve. Connecting arms are hinged between the support arms and the hinge seats. A sleeve screw is mounted in the sleeve, and screw holes are provided on the main shaft. The sleeve screw is connected to the screw holes. The outer baffle is fixed to the sleeve, and four outer wing arms are mounted on the outer baffle. The four outer wing arms are staggered from the four inner wing arms and do not interfere with the support arms. This invention has a simple structure, improves the stability of the support frame, and achieves the function of limiting the movement of steel strip coils of different widths. However, this solution needs further improvement.

[0004] This invention overcomes the shortcomings of the prior art by providing an unwinding device with multiple expansion and contraction components, which can reduce the time required for preparing roll materials. Utility Model Content

[0005] The main objective of this invention is to provide an unwinding device, including a frame, which is equipped with expansion and contraction components and limiting components. The number of expansion and contraction components is at least two. One side of the frame is an unwinding area. The frame is connected to a support frame via a rotating component. The expansion and contraction components carry the rolled material and switch between the two sides within the unwinding area via the rotating component. The unwinding area is equipped with a material guiding component, which is used to guide the material after unwinding. The number of limiting components matches the number of expansion and contraction components. The limiting components are located on the sides of the expansion and contraction components. The limiting components adjust the limiting range according to the width or thickness of the rolled material, limiting the two end faces or the circumference of the rolled material.

[0006] Optionally, the rotating assembly includes a turntable bearing, an external gear bearing, a transmission gear, and a rotary motor; the transmission gear and the rotary motor are mounted on the support frame, and the rotary motor is connected to the transmission gear; the inner side of the turntable bearing is fixedly connected to the support frame, and the outer side is fixedly connected to the inner side of the external gear bearing; the external gear bearing is fixedly connected to the frame, and the external gear bearing meshes with the transmission gear.

[0007] Optionally, a positioning guide post and a positioning hole are provided between the opposite surfaces of the support frame and the frame. The positioning guide post is fixedly connected to the support frame, and the positioning hole is fixedly connected to the frame. The movable end of the positioning guide post moves toward the positioning hole. The positioning guide post is inserted into the positioning hole to position the frame. Positioning inclined surfaces are provided on both sides of the positioning hole.

[0008] Optionally, a support wheel is provided between the opposing surfaces of the support frame and the machine frame, the axle of the support wheel is fixedly connected to the support frame, and the wheel surface of the support wheel makes rolling contact with the machine frame.

[0009] Optionally, the limiting assembly includes a pressure roller, a pressure arm, a pressure arm shaft, and a pressure arm cylinder; the pressure arm cylinder is hinged to the frame, the movable end of the pressure arm cylinder is hinged to the pressure arm through a pressure arm connecting rod, the tail end of the pressure arm is fixedly connected to the circumferential surface of the pressure arm shaft, the pressure arm shaft rotates with the pressure arm shaft, the head end of the pressure arm shaft is provided with the pressure roller, and the pressure roller is drivenly connected to a pressure roller motor.

[0010] Optionally, the limiting assembly includes a limiting frame, a limiting roller, a limiting screw, a limiting roller motor, and a limiting roller cylinder. The limiting frame is connected to the machine frame, and the limiting frame is equipped with a limiting roller, a limiting screw, and a limiting roller motor.

[0011] The limiting roller motor is connected to the limiting screw drive, and the limiting screw is divided into a left-hand screw and a right-hand screw with the center of the limiting screw. The left-hand screw and the right-hand screw are respectively connected to a limiting roller through a connecting sleeve.

[0012] The limiting roller cylinder is hinged to the frame, and the movable end of the limiting roller cylinder is connected to the connecting sleeve through a lead screw.

[0013] Optionally, the limiting frame is provided with a scale mark, which is arranged parallel to the limiting screw, and the connecting sleeve is provided with a pointer.

[0014] Optionally, the number of expansion and contraction components is two, and the two expansion and contraction components are arranged in a centrally symmetrical manner with respect to the rotation component.

[0015] Optionally, the expansion and contraction assembly includes a main shaft, which is connected to a rotating assembly. The main shaft is provided with a pushing assembly and an expansion assembly. The rotating assembly drives the main shaft, as well as the pushing assembly and the expansion assembly connected to the main shaft, to rotate. The rotating assembly and the main shaft are mounted on the frame.

[0016] The expansion assembly includes several expansion plates that form a cylindrical support surface centered on the main shaft. The pushing assembly is connected to the expansion assembly in a transmission manner, and the pushing assembly drives the expansion assembly to move along the axial direction of the main shaft. When the expansion assembly moves along the axial direction of the main shaft, it drives the expansion plates to move and expand or shrink along the radial direction of the main shaft, thereby changing the size of the support surface.

[0017] Optionally, the feeding assembly includes a feeding frame, the feeding frame being provided with an upper clamping assembly and a lower clamping assembly; the upper clamping assembly and the lower clamping assembly are respectively hinged to the feeding frame, the upper clamping assembly being located above the lower clamping assembly; the upper clamping assembly is used for rolling contact with the upper side of the coil, and the lower clamping assembly is used for rolling contact with the lower side of the coil through a conveying assembly;

[0018] The upper clamping assembly and the lower clamping assembly rotate around the hinge point with the feeding frame to change the size of the clamped space, and a feed sheet of a predetermined width passes between the upper clamping assembly and the lower clamping assembly.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The unwinding equipment provided by this utility model includes at least two expansion and contraction components for carrying the coiled material. After the coiled material on one side is unwound in the unwinding area, the frame is rotated by a rotating component to switch the coiled material carried by the expansion and contraction component on the other side to the unwinding area for unwinding. At the same time, the idle expansion and contraction components are used for loading coiled material, so that the unwinding operation is continuous and the loading and unwinding are carried out simultaneously, thereby improving the unwinding efficiency. Furthermore, the coiled material is limited by a limiting component to prevent the coiled material carried by the expansion and contraction components from unwinding during the waiting process. Attached Figure Description

[0021] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0022] Figure 1 This is a schematic diagram of an embodiment of the unwinding equipment of this utility model;

[0023] Figure 2 This is a side view of an embodiment of the unwinding equipment of this utility model;

[0024] Figure 3 This is a partial enlarged view of section A of the unwinding equipment of this utility model;

[0025] Figure 4 This is a rear view of an embodiment of the unwinding equipment of this utility model;

[0026] Figure 5 This is a schematic diagram of the rotating assembly in an embodiment of the unwinding equipment of this utility model;

[0027] Figure 6 This is a top view of the rotating assembly in an embodiment of the unwinding equipment of this utility model;

[0028] Figure 7 This is a schematic diagram of the limiting component in an embodiment of the unwinding equipment of this utility model;

[0029] Figure 8 This is a side view of the limiting component in an embodiment of the unwinding equipment of this utility model;

[0030] Figure 9 This is a schematic diagram of the separation of the limit roller cylinder of the limit component in an embodiment of the uncoiling equipment of this utility model;

[0031] Figure 10 This is a schematic diagram of the limiting screw of the limiting component in an embodiment of the uncoiling equipment of this utility model;

[0032] Figure 11 This is a schematic diagram of the expansion and contraction components in an embodiment of the unwinding equipment of this utility model;

[0033] Figure 12 This is a side view of the expansion and contraction component in an embodiment of the unwinding equipment of this utility model;

[0034] Figure 13 Cross-sectional view of the expansion and contraction component in an embodiment of the unwinding equipment of this utility model. Figure 1 ;

[0035] Figure 14 Cross-sectional view of the expansion and contraction component in an embodiment of the unwinding equipment of this utility model. Figure 2 ;

[0036] Figure 15 This is a schematic diagram of the feeding assembly in an embodiment of the uncoiling equipment of this utility model;

[0037] Figure 16 This is a side view of the feeding assembly in an embodiment of the uncoiling equipment of this utility model;

[0038] Figure 17 This is a schematic diagram of the material feeding assembly in the open state of an embodiment of the uncoiling equipment of this utility model;

[0039] Figure 18 This is a schematic diagram of the closed state of the feeding assembly in an embodiment of the uncoiling equipment of this utility model.

[0040] Figure label:

[0041] 10-Frame; 11-Unwinding area; 12-Positioning hole; 121-Positioning bevel;

[0042] 20-Expansion / Contraction Assembly; 21-Main Shaft; 211-Support Bearing; 212-Brake Disc; 22-Rotating Assembly; 221-Unwinding Motor; 222-Transmission Gear; 23-Push Assembly; 231-Sliding Sleeve; 232-First Hydraulic Cylinder; 233-Support Plate; 234-Rotary Joint; 24-Expansion Assembly; 241-Expansion Plate; 242-First Connecting Rod; 243-Second Connecting Rod; 244-Mounting Block; 245-Connecting Block; 246-Baffle;

[0043] 30-Limit assembly; 31-Pressure roller; 311-Pressure roller motor; 32-Pressure arm; 321-Pressure arm shaft; 322-Pressure arm cylinder; 323-Pressure arm connecting rod; 33-Limit frame; 331-Scale marking; 34-Limit roller; 35-Limit screw; 351-Left-hand screw; 352-Right-hand screw; 353-Connecting sleeve; 354-Screw connecting rod; 355-Pointer; 36-Limit roller motor; 37-Limit roller cylinder;

[0044] 40 - Rotating assembly; 41 - Turntable bearing; 42 - External gear bearing; 43 - Transmission gear; 44 - Rotary motor; 50 - Support frame; 51 - Positioning guide post; 52 - Support wheel;

[0045] 60-Feeding assembly; 61-Feeding frame; 62-Upper clamping assembly; 621-Upper clamping frame; 6211-First connecting part; 6212-Second connecting part; 6213-Support arm; 6214-Third connecting part; 622-Upper clamping roller; 623-Second hydraulic cylinder; 624-Upper feeding roller; 625-First cylinder; 626-Slide rail; 627-Slide groove; 628-Baffle plate; 63-Lower clamping assembly; 631-Lower clamping frame; 6311-Connecting seat; 6312-Through hole; 632-Third hydraulic cylinder; 633-Lower feeding roller; 64-Conveying assembly; 641-Conveying frame; 6411-Mounting part; 642-Conveying surface; 643-Conveying roller; 644-Conveying motor; 645-Sprocket; 646-Chain; 647-Second cylinder; 648-Detection roller. Detailed Implementation

[0046] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and similar expressions used in this specification are for illustrative purposes only. In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or implying the number of indicated technical features. Thus, unless otherwise stated, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "multiple" means two or more. The term "comprising" and any variations thereof mean non-exclusive inclusion, where one or more other features, integers, steps, operations, units, components, and / or combinations thereof may be present or added.

[0047] Furthermore, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; as a mechanical connection or an electrical connection; as a direct connection or an indirect connection through an intermediate medium, or as a connection within two components. All technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0048] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0049] like Figure 1-18 The diagram shown is a schematic representation of an embodiment of the unwinding equipment provided by this utility model.

[0050] Please refer to Figure 1-18 This embodiment is mainly used for unwinding rolled materials. For example... Figure 1-4As shown, this embodiment includes a frame 10, which is equipped with an expansion / contraction assembly 20 and a limiting assembly 30. The number of expansion / contraction assemblies 20 is at least two. One side of the frame 10 is an unwinding area 11. The frame 10 is connected to a support frame 50 via a rotating assembly 40, and the support frame 50 is fixedly connected to the ground. The expansion / contraction assembly 20 carries the rolled material and switches within the unwinding area 11 via the rotating assembly 40. Specifically, this embodiment uses two expansion / contraction assemblies 20. After the rolled material on one side is unwound in the unwinding area 11, the frame 10 is rotated via the rotating assembly 40 to switch the rolled material carried by the expansion / contraction assembly 20 on the other side to the unwinding area 11 for unwinding. Simultaneously, the idle expansion / contraction assembly 20 is used for loading rolled material, ensuring continuous unwinding operations and achieving synchronous loading and unwinding, thus improving unwinding efficiency.

[0051] The unwinding area 11 is equipped with a feeding component 60, which is located on the side of the unwinding area 11 and is used to feed the material after unwinding. The number of limiting components 30 matches the number of expansion and contraction components 20. The limiting components 30 are located on the side of the expansion and contraction components 20. The limiting components 30 adjust the limiting range according to the thickness of the material to limit the circumference of the material and prevent the material carried by the expansion and contraction components 20 from spreading out during the waiting process. The limiting components 30 can also adjust the limiting range according to the width of the material to limit the two end faces of the material and prevent the material from spreading out towards the end faces.

[0052] In one embodiment, such as Figure 3 and 5 As shown in Figure 6, the rotating assembly 40 includes a turntable bearing 41, an external gear bearing 42, a transmission gear 43, and a rotary motor 44. The transmission gear 43 and the rotary motor 44 are mounted on the support frame 50. The rotary motor 44 is connected to the transmission gear 43. The inner side of the turntable bearing 41 is fixedly connected to the support frame 50, and the outer side is fixedly connected to the inner side of the external gear bearing 42. The external gear bearing 42 is fixedly connected to the frame 10 and meshes with the transmission gear 43. The rotary motor 44 drives the transmission gear 43 to rotate, which in turn drives the external gear bearing 42 to rotate, thereby rotating the frame 10 connected to the external gear bearing 42. Specifically, there are two transmission gears 43, symmetrically arranged on both sides of the external gear bearing 42. The rotary motor 44 is poweredly connected to one of the transmission gears 43. The turntable bearing 41 connects the external gear bearing 42 and the frame 10 to the support frame 50.

[0053] Furthermore, a positioning guide post 51 and a positioning hole 12 are provided between the opposing surfaces of the support frame 50 and the frame 10. The positioning guide post 51 is fixedly connected to the support frame 50, and the positioning hole 12 is fixedly connected to the frame 10. The movable end of the positioning guide post 51 moves towards the positioning hole 12, and the positioning guide post 51 is inserted into the positioning hole 12 to position the frame 10. Through the cooperation of the positioning guide post 51 and the positioning hole 12, the expansion and contraction assembly 20 is positioned and fixed in the unwinding area 11 after the frame 10 rotates. There are two positioning holes 12, and the two positioning holes 12 and the two expansion and contraction assemblies 20 are distributed accordingly. Positioning inclined surfaces 121 are provided on both sides of the positioning hole 12. After the positioning guide post 51 is shortened and separated from the positioning hole 12 on one side, the rotating component 40 drives the frame 10 to rotate, causing the positioning hole 12 and the positioning guide post 51 to be misaligned. The positioning guide post 51 extends out. When the frame 10 rotates to the positioning hole 12 on the other side, the positioning inclined surface 121 of the positioning hole 12 on the other side contacts the top of the positioning guide post 51. As the frame 10 rotates, the positioning inclined surface 121 abuts against and compresses the positioning guide post 51. When the positioning guide post 51 is aligned with the positioning hole 12, the positioning guide post 51 springs back into the positioning hole 12 to achieve positioning.

[0054] Furthermore, a support wheel 52 is provided between the opposing surfaces of the support frame 50 and the frame 10. The pivot of the support wheel 52 is fixedly connected to the support frame 50, and the wheel surface of the support wheel 52 makes rolling contact with the frame 10. The support wheel 52 is used to support the frame 10 and maintain its balance, and the contact method with the frame 10 is rolling contact, which reduces the friction of the support.

[0055] In one embodiment, such as Figure 7-10 As shown, the limiting assembly 30 includes a pressure roller 31, a pressure arm 32, a pressure arm shaft 321, and a pressure arm cylinder 322. The cylinder body of the pressure arm cylinder 322 is hinged to the frame 10. The movable end of the pressure arm cylinder 322 is hinged to the pressure arm 32 via a pressure arm connecting rod 323. The tail end of the pressure arm 32 is fixedly connected to the circumferential surface of the pressure arm shaft 321. The pressure arm 32 rotates with the pressure arm shaft 321. The pressure roller 31 is located at the head end of the pressure arm shaft 321 and is connected to the pressure roller motor 311. The pressure arm cylinder 322 drives the pressure arm shaft 321 to rotate, which in turn drives the pressure arm 32 to rotate closer to the coiled material. The pressure roller 31 presses against the circumferential surface of the coiled material, and the pressure roller motor 311 drives the pressure roller 31 to rotate, thus tightening the coiled material.

[0056] In one embodiment, such as Figure 7-10As shown, the limiting assembly 30 includes a limiting frame 33, a limiting roller 34, a limiting screw 35, a limiting roller motor 36, and a limiting roller cylinder 37. The limiting frame 33 is connected to the machine frame 10 and is equipped with the limiting roller 34, the limiting screw 35, and the limiting roller motor 36. The limiting roller motor 36 is driven by the limiting screw 35, which is divided into a left-handed screw 351 and a right-handed screw 352 around its center. The left-handed screw 351 and the right-handed screw 352 are each connected to a limiting roller 34 through a connecting sleeve 353. The limiting roller cylinder 37 is hinged to the machine frame 10, and the movable end of the limiting roller cylinder 37 is connected to the connecting sleeve 353 through a screw connecting rod 354.

[0057] When the limiting roller motor 36 drives the limiting screw 35 to rotate, since the left-hand screw 351 and the right-hand screw 352 have opposite thread directions, the two limiting rollers 34 move synchronously closer to each other or synchronously further apart. This can be adjusted according to the width of the coil material, and the limiting rollers 34 limit the end face of the coil material. Through the limiting roller cylinder 37, in conjunction with the screw connecting rod 354 and the connecting sleeve 353, the limiting rollers 34 are driven to rotate upward as a whole, avoiding interference between the limiting rollers 34 and the coil material feeding.

[0058] Furthermore, the limiting frame 33 is provided with a scale mark 331, which is arranged parallel to the limiting screw 35, and the connecting sleeve 353 is provided with a pointer 355. The width between the limiting rollers 34 is indicated by the pointer 355 and the scale mark 331.

[0059] In one embodiment, there are two expansion / contraction components 20, which are arranged symmetrically about the rotating component 40. When one expansion / contraction component 20 rotates 180 degrees, it coincides with the initial position of the other expansion / contraction component 20.

[0060] In one embodiment, such as Figure 11-14As shown, the expansion / contraction assembly 20 includes a main shaft 21, which is connected to a rotating assembly 22. The main shaft 21 is equipped with a pushing assembly 23 and an expansion assembly 24. The rotating assembly 22 drives the main shaft 21, as well as the pushing assembly 23 and the expansion assembly 24 connected to the main shaft 21, to rotate. The expansion assembly 24 includes several expansion plates 241, which form a cylindrical support surface with the main shaft 21 as the axis. The pushing assembly 23 is connected to the expansion assembly 24, and the pushing assembly 23 drives the expansion assembly 24 to move along the axial direction of the main shaft 21. When the expansion assembly 24 moves along the axial direction of the main shaft 21, it drives the expansion plates 241 to move and expand or shrink along the radial direction of the main shaft 21, changing the size of the support surface formed. The pushing component 23 causes the expansion plate 241 of the expansion component 24 to contract, reducing the outer diameter of the support surface so that it is smaller than the inner diameter of the coil, facilitating the coil to fit into the expansion component 24. After the coil is fitted into the expansion component 24, the pushing component 23 causes the expansion component 24 to expand outward, increasing the outer diameter of the support surface so that the support surface is pressed against the inner diameter of the coil, thus completing the bearing of the coil. After bearing the coil, the rotating component 22 causes the expansion component 24 to rotate around the main shaft 21, thereby causing the coil to rotate, in conjunction with the feeding structure to achieve the unwinding of the coil.

[0061] The pushing assembly 23 includes a sliding sleeve 231, a first hydraulic cylinder 232, and a support plate 233. The first hydraulic cylinder 232 is located at the beginning of the main shaft 21 via the sliding sleeve 231. The sliding sleeve 231 is cylindrical, with its inner side facing the outer circumferential surface of the main shaft 21. The beginning of the sliding sleeve 231 is connected to the first hydraulic cylinder 232, and the end of the sliding sleeve 231 is connected to the support plate 233 via an expansion assembly 24. The support plate 233 is fitted onto the outer circumferential surface of the main shaft 21 and is fixedly connected to the main shaft 21. The first hydraulic cylinder 232 drives the sliding sleeve 231 to extend and retract along the direction of the main shaft 21, thereby causing the expansion assembly 24 connected to the sliding sleeve 231 to expand outward or contract inward. The axial movement of the sliding sleeve 231 along the main shaft 21 is converted into radial movement along the main shaft 21 via the expansion plate 241, thus expanding or contracting the support surface. The first hydraulic cylinder 232 is connected to the rotary joint 234 at the tail of the main spindle 21 through an internal channel, and the hydraulic system is connected externally through the rotary joint 234. The rotary joint 234 is used to prevent the connecting pipes of the hydraulic system from getting tangled when the first hydraulic cylinder 232 rotates with the main spindle 21.

[0062] The expansion assembly 24 includes a first connecting rod 242, a second connecting rod 243, a mounting block 244, and a connecting block 245. The first end of the first connecting rod 242 is hinged to the mounting block 244, and the tail end of the first connecting rod 242 is hinged to the connecting block 245. The mounting block 244 is fixedly connected to the sliding sleeve 231, and the connecting block 245 is fixedly connected to the inner surface of the expansion plate 241. The first end of the second connecting rod 243 is hinged to the support plate 233, and the tail end of the second connecting rod 243 is hinged to the middle of the first connecting rod 242.

[0063] The support plate 233 is fixedly connected to the main shaft 21. The sliding sleeve 231 moves along the axial direction of the main shaft 21 under the drive of the first oil cylinder 232. When the sliding sleeve 231 moves, it drives the first connecting rod 242 and the second connecting rod 243 to move, changing the included angle between the first connecting rod 242 and the second connecting rod 243. When the included angle decreases, the first connecting rod 242 pushes the expansion plate 241 to move radially outward of the main shaft 21. At this time, the support surface enclosed by the expansion plate 241 expands. When the included angle increases, the first connecting rod 242 drives the expansion plate 241 to move radially inward of the main shaft 21. At this time, the support surface enclosed by the expansion plate 241 decreases.

[0064] Specifically, the expansion assembly 24 includes multiple expansion units, and in this embodiment, the number of expansion units is specifically three. Each expansion unit includes four first connecting rods 242, one second connecting rod 243, one mounting block 244, one connecting block 245, and one expansion plate 241. Two first connecting rods 242 are grouped together, resulting in two groups of first connecting rods 242. The mounting block 244 and the connecting block 245 are both elongated. The first ends of the first connecting rods 242 in the first group are hinged to both sides of the first end of the mounting block 244, and the tail ends are hinged to both sides of the first end of the connecting block 245. The first ends of the first connecting rods 242 in the second group are hinged to both sides of the tail end of the mounting block 244, and the tail ends are hinged to both sides of the tail end of the connecting block 245. The tail end of the second connecting rod 243 extends between the first connecting rods 242 in the second group and is hinged to the middle of the first connecting rods 242 in the second group. The expansion plates 241 in the multiple expansion units form a support surface.

[0065] A baffle 246 is provided at the interval between the expansion plates 241 of adjacent expansion units, and the baffle 246 is connected to the expansion plates 241. The baffle 246 is used to prevent the rolled material from getting stuck in the gap between the expansion plates 241.

[0066] The rotating assembly 22 includes an unwinding motor 221 and a transmission gear 222. The transmission gear 222 is fixedly connected to the main shaft 21, and the unwinding motor 221 is poweredly connected to the transmission gear 222 through a reducer (not shown). The unwinding motor 221 and the transmission gear 222 can also be driven by a sprocket and chain.

[0067] The spindle 21 is connected to the frame 10 via support bearings 211. There are two sets of support bearings 211, which are used to connect the spindle 21 to the front and rear sides of the frame 10, respectively, to reduce the rotational resistance between the spindle 21 and the frame 10.

[0068] It also includes a brake disc 212, which is located on the main shaft 21. The brake disc 212 is an air disc brake used to stop the rotation of the main shaft 21.

[0069] In one embodiment, such as Figure 15-18As shown, the feeding assembly 60 includes a feeding frame 61, which is equipped with an upper clamping assembly 62 and a lower clamping assembly 63. The upper clamping assembly 62 clamps the upper side of the circumference of the coil, and the lower clamping assembly 63 clamps the lower side of the circumference of the coil through the conveying assembly 64, preventing the coil from unraveling. The upper clamping assembly 62 is used for rolling contact with the upper side of the coil, and the lower clamping assembly 63 is used for rolling contact with the lower side of the coil through the conveying assembly 64. Both the upper clamping assembly 62 and the lower clamping assembly 63 are in rolling contact with the coil, reducing contact wear when the coil rotates.

[0070] The upper clamping assembly 62 and the lower clamping assembly 63 are hinged to the feeder frame 61, with the upper clamping assembly 62 positioned above the lower clamping assembly 63. The upper clamping assembly 62 and the lower clamping assembly 63 rotate around their hinge points with the feeder frame 61 to change the size of the clamping space, accommodating the clamping of rolls of different sizes. A feed sheet of predetermined width passes between the upper clamping assembly 62 and the lower clamping assembly 63. When the conveying assembly 64 contacts the roll, it outputs power to tighten the roll.

[0071] The upper clamping assembly 62 includes an upper clamping frame 621, an upper clamping roller 622, and a second hydraulic cylinder 623. A first connecting portion 6211 and a second connecting portion 6212 extend from both sides of the upper clamping frame 621, forming a predetermined angle between them. The tail end of the cylinder body of the second hydraulic cylinder 623 is hinged to the feeder frame 61. The first connecting portion 6211 is hinged to the movable end of the second hydraulic cylinder 623, and the second connecting portion 6212 is hinged to the feeder frame 61. The angle between the first connecting portion 6211 and the second connecting portion 6212 creates a connecting rod-like function. When the second hydraulic cylinder 623 is working, the first connecting part 6211 drives the upper clamping frame 621 to rotate around the hinge point with the feeder frame 61. When the second hydraulic cylinder 623 pushes, the upper clamping frame 621 rotates upward away from the lower clamping assembly 63, and the space between the upper clamping frame 621 and the lower clamping assembly 63 increases. When the second hydraulic cylinder 623 retracts, the upper clamping frame 621 rotates downward and moves closer to the clamping assembly 13, and the space between the upper clamping frame 621 and the lower clamping assembly 63 decreases. A support arm 6213 extends from the middle of the front end of the upper clamping frame 621. The first end of the support arm 6213 is provided with an upper clamping roller 622, which is used to roll in contact with the upper side of the circumferential surface of the coiled material.

[0072] The upper clamping frame 621 has a first connecting part 6211 and a second connecting part 6212 on both sides respectively. The first connecting parts 6211 on both sides are symmetrically arranged, and the second connecting parts 6212 on both sides are symmetrically arranged. There are two second oil cylinders 623, which are symmetrically arranged on both sides of the upper clamping frame 621.

[0073] The upper clamping frame 621 extends into a third connecting portion 6214. A second connecting portion 6212 is located between the first connecting portion 6211 and the third connecting portion 6214. The third connecting portion 6214 is equipped with an upper feed roller 624. The second connecting portion 6212 and the third connecting portion 6214 have a certain included angle. The upper feed roller 624 is used to roll into contact with the upper surface of the sheet material after unwinding, and has the function of limiting the sheet material.

[0074] The support arm 6213 is equipped with a first cylinder 625 and a slide rail 626. The upper pressing roller 622 is slidably connected to the slide rail 626 via a slide groove 627. The slide groove 627 is connected to the movable end of the first cylinder 625. The slide rail 626 and the support arm 6213 are arranged in parallel. The first cylinder 625 drives the slide groove 627 to move along the slide rail 626, thereby driving the upper pressing roller 622 to move along the slide rail 626, extending the range of motion of the upper pressing roller 622. This range can be adjusted according to the outer diameter of the roll material to accommodate the upper pressing of roll materials of various sizes. A baffle 628 is provided below the upper pressing roller 622 to prevent the roll material head from getting stuck in the gap connecting the upper pressing roller 622 and the slide groove 627.

[0075] The lower clamping assembly 63 includes a lower clamping frame 631 and a third hydraulic cylinder 632. The lower clamping frame 631 has a conveying assembly 64 at its front end and is hinged to a feeding frame 61 at its rear end. A lower feeding roller 633 is located at the hinge point. The cylinder body of the third hydraulic cylinder 632 is hinged to the feeding frame 61. The feeding frame 61 is omitted in the illustration, and the connection between the third hydraulic cylinder 632 and the feeding frame 61 is omitted, but this does not affect the implementation of the technical solution in this embodiment. The movable end of the third hydraulic cylinder 632 is hinged to the lower center of the lower clamping frame 631. The third hydraulic cylinder 632 drives the lower clamping frame 631 to rotate around the hinge point with the feeding frame 61. When the third hydraulic cylinder 632 pushes, as... Figure 17 As shown, the lower clamping bracket 631 rotates upward, approaching the upper clamping assembly 62. At this time, the space between the upper clamping assembly 62 and the lower clamping assembly 63 decreases, as... Figure 18 As shown, when the third cylinder 632 retracts, the lower clamping frame 631 rotates downwards, moving away from the upper clamping assembly 62. At this time, the space between the upper clamping assembly 62 and the lower clamping assembly 63 increases. The surface opposite to the upper clamping frame 621 of the lower clamping frame 631 is the conveying surface. The conveying surface is a smooth surface and has through holes 6312. The through holes 6312 are provided to prevent the material sheet from adhering to the conveying surface.

[0076] The conveying assembly 64 includes a conveying frame 641, a conveying surface 642, conveying rollers 643, and a conveying motor 644. The conveying frame 641 is connected to the lower clamping frame 631. Conveying rollers 643 are respectively provided at both ends of the conveying frame 641, and the conveying surface 642 is provided between the conveying rollers 643. The conveying motor 644 is connected to the conveying rollers 643 for transmission through a sprocket 645 and a chain 646. The conveying motor 644 drives the conveying rollers 643 to rotate. Through the rolling contact between the conveying rollers 643 and the coiled material, the coiled material is driven to rotate, thereby tightening the coiled material.

[0077] A connecting seat 6311 is provided on the lower side of the first end of the lower clamping frame 631. The connecting seat 6311 is equipped with a sprocket 645. The lower side of the tail end of the conveyor frame 641 extends the mounting part 6411 and is hinged to the connecting seat 6311. The conveyor motor 644 is driven by the sprocket 645. The sprocket 645 is driven by the conveyor roller 643 through the chain 646. The mounting part 6411 is equipped with a second cylinder 647. The movable end of the second cylinder 647 is hinged to the conveyor frame 641. The second cylinder 647 pushes the conveyor frame 641 to rotate around the connecting seat 6311. By pushing the conveyor frame 641 to rotate, the included angle between the conveyor frame 641 and the lower clamping frame 631 is changed. A detection roller 648 is provided in the middle of the conveyor roller 643 located at the first end of the conveyor frame 641. The detection roller 648 is used to detect the rolled material.

[0078] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Under the concept of this utility model, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of this utility model as described above. For the sake of brevity, they are not provided in detail. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An unwinding device, characterized in that, The device includes a frame, which is equipped with expansion and contraction components and limiting components. The number of expansion and contraction components is at least two. One side of the frame is an unwinding area. The frame is connected to a support frame via a rotating component. The expansion and contraction components carry the rolled material and switch between the two sides within the unwinding area via the rotating component. The unwinding area is equipped with a material guiding component, which guides the material after unwinding. The number of limiting components matches the number of expansion and contraction components. The limiting components are located on the sides of the expansion and contraction components and adjust their limiting range according to the width or thickness of the rolled material, limiting either the two end faces or the circumference of the rolled material.

2. The unwinding equipment according to claim 1, characterized in that, The rotating assembly includes a turntable bearing, an external gear bearing, a transmission gear, and a rotary motor; the transmission gear and the rotary motor are mounted on the support frame, and the rotary motor is connected to the transmission gear; the inner side of the turntable bearing is fixedly connected to the support frame, and the outer side is fixedly connected to the inner side of the external gear bearing; the external gear bearing is fixedly connected to the frame, and the external gear bearing meshes with the transmission gear.

3. The unwinding equipment according to claim 2, characterized in that, A positioning guide post and a positioning hole are provided between the opposite surfaces of the support frame and the frame. The positioning guide post is fixedly connected to the support frame, and the positioning hole is fixedly connected to the frame. The movable end of the positioning guide post moves toward the positioning hole. The positioning guide post is inserted into the positioning hole to position the frame. Positioning inclined surfaces are provided on both sides of the positioning hole.

4. The unwinding equipment according to claim 2, characterized in that, A support wheel is provided between the opposing surfaces of the support frame and the machine frame. The rotation shaft of the support wheel is fixedly connected to the support frame, and the wheel surface of the support wheel makes rolling contact with the machine frame.

5. The unwinding equipment according to claim 1, characterized in that, The limiting assembly includes a pressure roller, a pressure arm, a pressure arm shaft, and a pressure arm cylinder; the pressure arm cylinder is hinged to the frame, the movable end of the pressure arm cylinder is hinged to the pressure arm through a pressure arm connecting rod, the tail end of the pressure arm is fixedly connected to the circumferential surface of the pressure arm shaft, the pressure arm shaft rotates with the pressure arm shaft, the head end of the pressure arm shaft is provided with the pressure roller, and the pressure roller is drivenly connected to the pressure roller motor.

6. The unwinding equipment according to claim 1, characterized in that, The limiting assembly includes a limiting frame, a limiting roller, a limiting screw, a limiting roller motor, and a limiting roller cylinder. The limiting frame is connected to the machine frame and is equipped with a limiting roller, a limiting screw, and a limiting roller motor. The limiting roller motor is connected to the limiting screw drive, and the limiting screw is divided into a left-hand screw and a right-hand screw with the center of the limiting screw. The left-hand screw and the right-hand screw are respectively connected to a limiting roller through a connecting sleeve. The limiting roller cylinder is hinged to the frame, and the movable end of the limiting roller cylinder is connected to the connecting sleeve through a lead screw.

7. The unwinding equipment according to claim 6, characterized in that, The limiting frame is equipped with a scale mark, which is arranged parallel to the limiting screw, and the connecting sleeve is equipped with a pointer.

8. The unwinding equipment according to claim 1, characterized in that, The number of expansion and contraction components is two, and the two expansion and contraction components are arranged in a centrally symmetrical manner with respect to the rotation component.

9. The unwinding equipment according to claim 1, characterized in that, The expansion and contraction assembly includes a main shaft, which is connected to a rotating assembly. The main shaft is equipped with a pushing assembly and an expansion assembly. The rotating assembly drives the main shaft, as well as the pushing assembly and the expansion assembly connected to the main shaft, to rotate. The rotating assembly and the main shaft are mounted on the frame. The expansion assembly includes several expansion plates that form a cylindrical support surface centered on the main shaft. The pushing assembly is connected to the expansion assembly in a transmission manner, and the pushing assembly drives the expansion assembly to move along the axial direction of the main shaft. When the expansion assembly moves along the axial direction of the main shaft, it drives the expansion plates to move and expand or shrink along the radial direction of the main shaft, thereby changing the size of the support surface.

10. The unwinding equipment according to claim 1, characterized in that, The feeding assembly includes a feeding frame, which is provided with an upper clamping assembly and a lower clamping assembly. The upper clamping assembly and the lower clamping assembly are respectively hinged to the feeding frame, and the upper clamping assembly is located above the lower clamping assembly. The upper clamping assembly is used to make rolling contact with the upper side of the coil, and the lower clamping assembly makes rolling contact with the lower side of the coil through the conveying assembly. The upper clamping assembly and the lower clamping assembly rotate around the hinge point with the feeding frame to change the size of the clamped space, and a feed sheet of a predetermined width passes between the upper clamping assembly and the lower clamping assembly.

Images