Unwinding device for super-wide web material
By introducing a frame assembly, a winding trolley, and an unwinding mechanism into the unwinding device, and utilizing guide rails and locking components to achieve flexible position adjustment of the roll material, the problems of difficult alignment and excess material falling off in traditional unwinding devices are solved, thereby improving production efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU JWELL MACHINERY
- Filing Date
- 2025-06-09
- Publication Date
- 2026-06-09
AI Technical Summary
Traditional unwinding devices cannot flexibly adjust their position, making it difficult to align the roll with the subsequent rollers, and small-diameter excess material is prone to falling off, affecting production continuity and safety.
The unwinding device, which includes a frame assembly, a winding trolley, and an unwinding mechanism, achieves position adjustment through longitudinal and transverse guide rails. Combined with locking components and a drive motor, it ensures stable unwinding of the roll material.
It enables flexible adjustment of the roll position, reduces the difficulty of alignment with downstream rollers, solves the space limitation problem when loading large diameter rolls, and improves production efficiency and safety.
Smart Images
Figure CN224336742U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of roll production equipment technology, and in particular to an unwinding device for ultra-wide rolls. Background Technology
[0002] In the production process of composite membranes such as waterproof membranes, it is necessary to combine membranes of different materials. The production line requires an unwinding device for unwinding the substrate or covering layer. Typically, the unwinding device is placed below the cooling support to save floor space. However, this restricts the space above the unwinding device, making it difficult to directly load large-diameter membranes onto the unwinding station. Traditional fixed unwinding frames cannot be flexibly adjusted, leading to difficulties in aligning the membrane with subsequent rollers, and small-diameter excess material is prone to falling off, affecting production continuity and safety. Summary of the Invention
[0003] In order to solve the above-mentioned technical problems, the purpose of this application is to provide an unwinding device for ultra-wide web materials that is flexible in position adjustment, easy to align, and adaptable to large diameter web materials.
[0004] To achieve the above objectives, this application adopts the following technical solution: an unwinding device for ultra-wide web materials, comprising:
[0005] A rack assembly includes a longitudinal guide rail disposed on the ground and a longitudinal sliding base that mates with the longitudinal guide rail, the longitudinal sliding base being configured to move back and forth along the longitudinal guide rail, the longitudinal guide rail extending in the longitudinal direction.
[0006] A winding trolley, at least partially mounted on the longitudinal sliding base, is configured to move back and forth relative to the longitudinal sliding base in a transverse direction perpendicular to the longitudinal direction.
[0007] The unwinding mechanism includes an unwinding support arranged parallel to the winding trolley and a pair of abrasive rollers rotatably mounted on top of the unwinding support. The unwinding support is configured to be movable back and forth on the longitudinal base in the transverse direction. The pair of abrasive rollers both extend in the transverse direction and are spaced apart in the longitudinal direction, with a center-to-center distance of 300mm to 400mm.
[0008] A locking assembly is arranged between the longitudinal sliding base and the unwinding support.
[0009] In the above technical solution, a further preferred embodiment is that a plurality of first moving wheel systems are installed at the bottom of the longitudinal moving base, and each of the first moving wheel systems is configured to roll back and forth along the longitudinal guide rail.
[0010] In the above technical solution, a further preferred embodiment is that the longitudinal moving base is equipped with a first transverse guide rail that cooperates with the winding trolley and a second transverse guide rail that cooperates with the unwinding support.
[0011] In the above technical solution, it is further preferred that the bottom of the coiling trolley is equipped with a plurality of second moving wheel systems that cooperate with the first transverse guide rail, and each of the second moving wheel systems is configured to be able to roll back and forth along the first transverse guide rail.
[0012] In the above technical solution, a further preferred embodiment is that the bottom of the coiling trolley is also equipped with several omnidirectional wheels that are in contact with the ground.
[0013] In the above technical solution, a further preferred embodiment is that the bottom of the unwinding support is equipped with a plurality of third moving wheel systems that cooperate with the second transverse guide rail, and each of the third moving wheel systems is configured to be able to roll back and forth along the second transverse guide rail.
[0014] In the above technical solution, a further preferred embodiment is that the unwinding mechanism further includes a drive motor and a transmission assembly, wherein the drive motor and the transmission assembly are respectively arranged on different sides of the pair of abrasive rollers, and the drive motor is connected to one of the abrasive rollers in a transmission connection; the transmission assembly includes a pair of sprockets and a chain that meshes with the pair of sprockets simultaneously, and one sprocket is coaxially sleeved on one of the abrasive rollers.
[0015] In the above technical solution, a further preferred embodiment is that the unwinding mechanism further includes an aluminum roller rotatably mounted on the unwinding support, the aluminum roller being parallel to and located between the pair of abrasive rollers, and the diameter of the aluminum roller being smaller than the diameter of the abrasive rollers.
[0016] In the above technical solution, a further preferred embodiment is that the locking assembly includes a locking rod and a locking plate with a locking groove. The locking rod is installed on one of the longitudinal moving base and the unwinding support, and the locking plate is installed on the other of the longitudinal moving base and the unwinding support. The locking rod extends along the transverse direction and is configured to be inserted into the locking groove.
[0017] In the above technical solution, it is further preferred that the top of the pair of grinding rollers forms a support surface, and the top of the winding trolley has a bearing surface, which is located above the support surface.
[0018] Compared with the prior art, this application achieves the following beneficial effects:
[0019] This application features a simple structure and convenient operation, enabling adjustment of the roll material's position in both left-right and front-back directions. This reduces the difficulty of aligning with downstream rollers and shortens alignment time. Furthermore, by moving the coiling trolley in the left-right direction, it solves the problem of limited space when loading large-diameter roll materials, reducing loading difficulty, shortening loading time, and further improving production efficiency. Attached Figure Description
[0020] Figure 1 A schematic diagram illustrating the location of an unwinding device in a roll material production line, provided in an embodiment of this application;
[0021] Figure 2 for Figure 1 A three-dimensional structural diagram of the unwinding device in the diagram;
[0022] Figure 3 for Figure 2 Front view of the unwinding device in the middle;
[0023] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle;
[0024] Figure 5 for Figure 3 A magnified view of a portion of point B in the middle;
[0025] Figure 6 for Figure 3 A magnified view of a portion of point C in the middle;
[0026] Figure 7 for Figure 2 A top view of the unwinding device in the middle;
[0027] Figure 8 for Figure 2 Side view of the unwinding device in the middle;
[0028] Figure 9 for Figure 2 Rear view of the unwinding device.
[0029] The components are as follows: 100, unwinding device; 10, frame assembly; 1, longitudinal guide rail; 2, longitudinal shift base; 21, first moving wheel system; 22, first transverse guide rail; 23, second transverse guide rail; 24, fourth moving wheel system; 20, winding trolley; 201, limiting groove; 202, handle; 5, second moving wheel system; 6, caster wheel; 30, unwinding mechanism; 3, unwinding support; 31, third moving wheel system; 4, frosted roller; 7, drive motor; 8, transmission assembly; 81, sprocket; 82, chain; 9, aluminum roller; 40, locking assembly; 11, locking rod; 12, locking plate; 200, coil material; 300, pressing roller; 400, cooling bracket. Detailed Implementation
[0030] To illustrate the technical content, structural features, achieved objectives, and effects of the application in detail, the technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. In the following description, for illustrative purposes, numerous specific details are set forth to provide a detailed description of various exemplary embodiments or implementations of the invention. However, various exemplary embodiments may also be implemented without these specific details or in one or more equivalent arrangements. Furthermore, the various exemplary embodiments may differ, but are not necessarily exclusive. For example, the specific shape, structure, and characteristics of the exemplary embodiments may be used or implemented in another exemplary embodiment without departing from the inventive concept.
[0031] The "vertical direction" mentioned in this application refers to Figure 2 The front-back direction shown in the diagram, and the "lateral direction" as described in this application are... Figure 2 The left and right directions are shown.
[0032] This application provides an unwinding device for ultra-wide web materials, such as... Figure 1 As shown, the unwinding device 100 is arranged below the cooling tray 400 in the roll material production line, and unwinds the roll material 200 downstream to the pressing roller 300 after loading. The unwinding device 100 includes: a frame assembly 10, a winding trolley 20, and an unwinding mechanism 30.
[0033] like Figure 2 As shown, the frame assembly 10 includes a longitudinal guide rail 1 arranged on the ground and a longitudinal sliding base 2 that cooperates with the longitudinal guide rail 1. The longitudinal guide rail 1 extends in the longitudinal direction. A plurality of first moving wheel trains 21 are installed on the bottom of the longitudinal sliding base 2. Each first moving wheel train 21 has an annular groove that cooperates with the longitudinal guide rail 1. The cooperation between the annular groove and the longitudinal guide rail 1 ensures that the first moving wheel train 21 does not derail during the back-and-forth rolling process on the longitudinal guide rail 1, providing guidance for the movement of the longitudinal sliding base 2 and ensuring that the longitudinal sliding base 2 moves back and forth along the longitudinal guide rail 1 in the front-to-back direction.
[0034] Since the unwinding device of this application can carry ultra-wide rolls, the length of the longitudinal base 2 in the left and right directions matches the width of the roll of 4000-9000mm. Several fourth moving wheel systems 24 are also installed at the bottom of the longitudinal base 2. The several fourth moving wheel systems 24 and several first moving wheel systems 21 are arranged at intervals in the left and right directions to ensure the balance of the longitudinal base 2 and to share the weight borne by several first moving wheel systems 21, thereby extending the service life of the first moving wheel systems 21.
[0035] like Figure 1-4As shown, at least a portion of the winding trolley 20 is mounted on the longitudinal base 2. The winding trolley 20 is configured to move back and forth relative to the longitudinal base 2 in a transverse direction. A first transverse guide rail 22 that mates with the winding trolley 20 is mounted on the top of the longitudinal base 2. Several second moving wheel systems 5 that mate with the first transverse guide rail 22 are mounted on the bottom of the winding trolley 20. Each second moving wheel system 5 has an annular groove that mates with the first transverse guide rail 22. The engagement of the annular groove with the first transverse guide rail 22 ensures that the second moving wheel system 5 does not derail during its back-and-forth rolling on the first transverse guide rail 22, providing guidance for the movement of the winding trolley 20 and ensuring that the winding trolley 20 moves back and forth in the left-right direction along the first transverse guide rail 22. The bottom of the coiling trolley 20 is also equipped with several casters 6 that are in contact with the ground. Several second moving wheel systems 5 and several casters 6 are respectively arranged at the left and right ends of the coiling trolley 20. The second moving wheel systems 5 support the coiling trolley 20 on the longitudinal base 2. The bottom of the coiling trolley 20 is connected to the casters 6 through support rods. The support rods eliminate the height difference, so that the coiling trolley 20 is balanced and supported on both the ground and the longitudinal base 2. When the longitudinal base 2 moves in the front-back direction, the casters 6 enable the coiling trolley 20 to move back and forth with the longitudinal base 2 to adjust its position. The coiling trolley 20 moves in the left and right direction via the second moving wheel system 5 and the universal wheels 6, and can move between a first position on which most of it is mounted on the longitudinal base 2 and a second position on which most of it is offset to one side of the longitudinal base 2. When the coiling trolley 20 moves to the second position, most of it is pulled out to the outside of the cooling bracket 400. The part of the coiling trolley 20 located outside the cooling bracket 400 is unobstructed on the upper, front and rear sides, which can provide enough space for large diameter and ultra-wide rolls 200 to be hoisted onto the coiling trolley 20.
[0036] The winding trolley 20 is also equipped with a handle 202, which makes it easy for the operator to pull the winding trolley 20 to move it between the first position and the second position.
[0037] like Figure 2 , 3As shown in Figure 5, the unwinding mechanism 30 includes an unwinding support 3 arranged side-by-side with the winding trolley 20 and a pair of abrasive rollers 4 rotatably mounted on the top of the unwinding support 3. The unwinding support 3 is configured to be movable back and forth on the longitudinal base 2 in the transverse direction. A second transverse guide rail 23 that cooperates with the unwinding support 3 is mounted on the top of the longitudinal base 2. Several third moving wheel systems 31 that cooperate with the second transverse guide rail 23 are mounted on the bottom of the unwinding support 3. Each third moving wheel system 31 has an annular groove that cooperates with the second transverse guide rail 23. The cooperation between the annular groove and the second transverse guide rail 23 ensures that the third moving wheel system 31 does not derail during the back and forth rolling process on the second transverse guide rail 23, providing guidance for the movement of the unwinding support 3 and ensuring that the unwinding support 3 moves back and forth in the left and right directions along the second transverse guide rail 23.
[0038] like Figure 7 As shown, a pair of abrasive rollers 4 extend in the transverse direction and are spaced apart in the longitudinal direction. Each abrasive roller 4 is rotatably mounted on the top of the unwinding support 3 around its own axis. The center distance d between the pair of abrasive rollers 4 is 300mm to 400mm, which ensures that the pair of abrasive rollers 4 can support large-diameter rolls and simultaneously contact the rolls to unwind the rolls through friction.
[0039] like Figure 3 , 6 As shown in Figure 9, the top of a pair of abrasive rollers 4 forms a horizontal support surface W1, and the top of the winding trolley 20 has a bearing surface W2, which is located above the support surface W1. When the bearing surface W2 of the winding trolley 20 is loaded with roll material, the height difference between the bearing surface W2 and the support surface W1 makes it easy for the operator to push the roll material 200 on the winding trolley 20 onto the unwinding mechanism 30. The bearing surface W2 is also provided with a downwardly recessed limiting groove 201, which cooperates with the outer surface of the roll material to prevent the roll material from rolling off the winding trolley 20 during left and right movement, thereby improving the safety of operation.
[0040] like Figure 3 , 6 As shown in Figures 7, 8, and 9, the unwinding mechanism 30 also includes a drive motor 7 and a transmission assembly 8. The drive motor 7 and the transmission assembly 8 are respectively arranged on different sides of a pair of abrasive rollers 4. The drive motor 7 is connected to one of the abrasive rollers 4 to drive the abrasive roller 4 to rotate around its own axis. The transmission assembly 8 includes a pair of sprockets 81 and a chain 82 that meshes with the pair of sprockets 81. A sprocket 81 is coaxially mounted on one abrasive roller 4. When the drive motor 7 drives the connected abrasive roller 4 to rotate, the other abrasive roller 4 rotates synchronously under the transmission of the transmission assembly 8. The synchronously rotating pair of abrasive rollers 4 causes the roll material 200 in contact with them to rotate under the action of friction to unwind outward.
[0041] The unwinding mechanism 30 also includes an aluminum roller 9 rotatably mounted on the unwinding support 3. The aluminum roller 9 is parallel to and located between a pair of frosted rollers 4. The diameter of the aluminum roller 9 is smaller than the diameter of the frosted rollers 4. When the diameter of the roll material on the pair of frosted rollers 4 decreases due to unwinding, the aluminum roller 9 supports the remaining small roll below the support surface W1, allowing the small roll to continue to be unwound until unwinding is complete.
[0042] A locking component 40 is also provided between the longitudinal base 2 and the unwinding support 3. The locking component 40 is used to lock the unwinding support 3 onto the longitudinal base 2 to prevent the unwinding mechanism 30 from shifting left and right during the unwinding process, which would affect the production quality.
[0043] The locking assembly 40 includes a locking rod 11 and a locking plate 12 with a locking groove. The locking rod 11 is mounted on the longitudinal base 2, and the locking plate 12 is mounted on the unwinding support 3. The locking rod 11 extends in the lateral direction and is configured to be inserted into the locking groove.
[0044] The working principle of this application is as follows: The operator pulls the coiling trolley 20 to the outside of the longitudinal moving base 2 in the left-right direction, leaving only the end equipped with the second moving wheel system 5 supported on the longitudinal moving base 2. At this time, most of the coiling trolley 20 is offset to one side of the longitudinal moving base 2. The large-diameter, ultra-wide roll material 200 is hoisted onto the coiling trolley 20 using a crane or hoisting equipment. After the coiling trolley 20 is loaded with the roll material 200, it is pushed back to the first position mostly erected on the longitudinal moving base 2 in the left-right direction. The roll 200 on the winding trolley 20 is pushed onto a pair of abrasive rollers 4 of the unwinding mechanism 30. The position of the unwinding support 3 is moved in the left and right direction to align the roll 200 with the downstream pressing roller 300. After accurate alignment, the unwinding support 3 is locked onto the longitudinal base 2 by the locking assembly 40. The drive motor 7 is started, and the roll 200 on the pair of abrasive rollers 4 begins to be unwound by friction.
[0045] The foregoing has shown and described the basic principles, main features, and advantages of this application. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this application. Various changes and modifications can be made without departing from the spirit and scope of this application. The scope of protection claimed by this application is defined by the appended claims, specification, and their equivalents.
Claims
1. An unwinding device for ultra-wide web materials, characterized in that, include: A rack assembly includes a longitudinal guide rail disposed on the ground and a longitudinal sliding base that mates with the longitudinal guide rail, the longitudinal sliding base being configured to move back and forth along the longitudinal guide rail, the longitudinal guide rail extending in the longitudinal direction. A winding trolley, at least partially mounted on the longitudinal sliding base, is configured to move back and forth relative to the longitudinal sliding base in a transverse direction perpendicular to the longitudinal direction. The unwinding mechanism includes an unwinding support arranged parallel to the winding trolley and a pair of abrasive rollers rotatably mounted on top of the unwinding support. The unwinding support is configured to be movable back and forth on the longitudinal base in the transverse direction. The pair of abrasive rollers both extend in the transverse direction and are spaced apart in the longitudinal direction, with a center-to-center distance of 300mm to 400mm. A locking assembly is arranged between the longitudinal sliding base and the unwinding support.
2. The unwinding device according to claim 1, characterized in that, The bottom of the longitudinal base is equipped with several first moving wheel systems, each of which is configured to roll back and forth along the longitudinal guide rail.
3. The unwinding device according to claim 1, characterized in that, The longitudinal base is equipped with a first transverse guide rail that cooperates with the winding trolley and a second transverse guide rail that cooperates with the unwinding support.
4. The unwinding device according to claim 3, characterized in that, The bottom of the coiling trolley is equipped with several second moving wheel systems that cooperate with the first transverse guide rail. Each of the second moving wheel systems is configured to roll back and forth along the first transverse guide rail.
5. The unwinding device according to claim 4, characterized in that, The bottom of the coiling trolley is also equipped with several omnidirectional wheels that are in contact with the ground.
6. The unwinding device according to claim 3, characterized in that, The bottom of the unwinding support is equipped with a plurality of third moving wheel systems that cooperate with the second transverse guide rail. Each of the third moving wheel systems is configured to roll back and forth along the second transverse guide rail.
7. The unwinding device according to claim 1, characterized in that, The unwinding mechanism further includes a drive motor and a transmission assembly. The drive motor and the transmission assembly are respectively arranged on different sides of the pair of abrasive rollers. The drive motor is connected to one of the abrasive rollers in a driving connection. The transmission assembly includes a pair of sprockets and a chain that meshes with the pair of sprockets. One of the sprockets is coaxially mounted on one of the abrasive rollers.
8. The unwinding device according to claim 1, characterized in that, The unwinding mechanism further includes an aluminum roller rotatably mounted on the unwinding support. The aluminum roller is parallel to and located between the pair of abrasive rollers. The diameter of the aluminum roller is smaller than the diameter of the abrasive rollers.
9. The unwinding device according to claim 1, characterized in that, The locking assembly includes a locking rod and a locking plate with a locking groove. The locking rod is mounted on one of the longitudinal base and the unwinding support, and the locking plate is mounted on the other of the longitudinal base and the unwinding support. The locking rod extends in the transverse direction and is configured to be inserted into the locking groove.
10. The unwinding device according to claim 1, characterized in that, The top of the pair of abrasive rollers forms a support surface, and the top of the winding trolley has a bearing surface, which is located above the support surface.