A tape wheel and apparatus using the same

Abstract

The utility model belongs to mechanical transmission and conveying technical field relates to a belt pulley, including belt pulley main part, rubber strip, tensioning mechanism and tensioning locking mechanism. Belt pulley main part is equipped with the installation groove of through outer circumferential surface, rubber strip is circumferential and is set up in the outer circumferential surface, and tensioning mechanism is rotatablely installed through pivot, is equipped with the radial clamping groove of link with installation groove, is used for locking rubber strip both ends, and tensioning locking mechanism is connected with tensioning mechanism and is used for locking tensioning mechanism in the tensioning position. The utility model discloses still used above-mentioned cloth bag wheel's equipment. The utility model directly tightens rubber strip through rotating tensioning mechanism, ensures rubber layer and wheel body closely adhere, effectively controls the outer diameter runout to be within 0.3mm, significantly improves cloth belt operation stability and product slitting accuracy. Meanwhile adopt detachable locking structure, make rubber strip replacement convenient, and maintenance efficiency improves about 60%, solves the problem that traditional many splicing structures are big, and the replacement is complicated.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical transmission and conveying technology, and relates to a cloth belt pulley and equipment using it. Background Technology

[0002] Currently, in slitting equipment, the belt pulley assembly, as a guiding component for the belt's movement, is widely used in the conveying and slitting of filter rods. During long-term operation, the belt pulley bears continuous frictional loads, and its structural stability and the fitting precision of its rubber-coated components directly affect the smoothness of the belt's operation and the consistency of the filter rod's slitting length.

[0003] A search of existing technologies revealed Chinese patent CN206600356U, which discloses a belt pulley and a device using the same. The device includes a body, a bushing, a frame disc, and a support wheel. The support wheel consists of several sector-shaped support wheel blocks, the outer circumference of which is covered with a polyurethane layer. The sector-shaped support wheel blocks are mounted on the frame disc via positioning pins and fixing screws. A tensioning conical sleeve is provided between the support wheel and the bushing. The tensioning conical sleeve is threaded onto the outside of the bushing and its outer conical surface mates with the inner conical surface of the support wheel. A locking nut is provided on the outer circumference for fixation.

[0004] The assembly of multiple sector-shaped support wheel blocks results in poor outer diameter consistency and increased radial runout, with measured outer diameter runout typically exceeding 0.5mm. Furthermore, replacing the rubber layer or adjusting the outer diameter requires disassembling the entire support wheel assembly, leading to complex procedures and lengthy maintenance. In contrast, this invention achieves high-precision tensioning and easy replacement through an integrated rubber strip and rotary tensioning mechanism, fundamentally solving the aforementioned problems. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a belt pulley and a device using it, which can effectively reduce outer diameter runout, improve the stability of the conveying and cutting process, and simplify the replacement process of the rubber strip.

[0006] Technical solution

[0007] A cloth belt pulley, comprising:

[0008] The main body of the cloth belt pulley has an outer circumferential surface, and the main body of the cloth belt pulley is provided with a mounting groove in the radial direction that communicates with and passes through the outer circumferential surface;

[0009] A rubber strip is circumferentially disposed on the outer circumferential surface of the belt pulley body;

[0010] The tensioning mechanism is rotatably mounted on the belt pulley body via a pivot or bearing. The tensioning mechanism is provided with a radial groove that engages with the mounting groove. The tensioning mechanism is adapted to receive and lock the two ends of the rubber strip passing through the mounting groove via the radial groove.

[0011] The tensioning and locking mechanism is inserted through the main body of the belt pulley and disposed on the tensioning mechanism. The tensioning and locking mechanism is adapted to restrict the rotation of the tensioning mechanism relative to the main body of the belt pulley when the tensioning mechanism is rotated to the tensioned position.

[0012] In a preferred embodiment of this utility model, the tensioning mechanism includes a rotating tensioning wheel and a tightening screw. The radial groove extends axially along the rotating tensioning wheel and is disposed on the rotating tensioning wheel. The rotating tensioning wheel has a threaded hole communicating with the radial groove. The tightening screw is adapted to be threaded into the threaded hole and abuts against the end surface of the rubber strip in the radial groove to restrict the movement of the rubber strip in the radial groove.

[0013] In a preferred embodiment of this utility model, two tightening screws are provided, and the two tightening screws are symmetrically arranged on both sides of the rubber strip in the width direction within the radial groove.

[0014] In a preferred embodiment of this utility model, the main body of the belt pulley is provided with an axial fixing hole; the tensioning and locking mechanism includes a locking fixing sleeve and a locking bolt, the locking fixing sleeve is provided with a locking through hole, and the locking fixing sleeve is an open annular structure, suitable for pressing against the outer circumferential surface of the tensioning mechanism by tightening; wherein, the locking bolt is adapted to pass through the axial fixing hole and be threaded into the locking through hole, so as to restrict the rotation of the locking fixing sleeve relative to the main body of the belt pulley and fix the locking fixing sleeve on the tensioning mechanism.

[0015] In a preferred embodiment of this utility model, at least two fan-shaped recessed areas are provided on the outer surface of the main body of the cloth belt pulley, which are evenly distributed in the circumferential direction. The depth of the fan-shaped recessed areas is 3-8mm, which is used to reduce the overall weight.

[0016] In a preferred embodiment of this utility model, the rotating tensioning wheel has a rotating operation hole in the middle. The rotating operation hole is a hexagonal hole, and the depth of the rotating operation hole is 1 / 2 to 2 / 3 of the thickness of the rotating tensioning wheel. The inner wall is provided with an anti-rust coating.

[0017] In a preferred embodiment of this utility model, the rubber strip is made of nitrile rubber or fluororubber with a Shore hardness of 60-80HA, and the outer surface of the rubber strip is provided with anti-slip textures extending axially, the spacing of the anti-slip textures being 1-3mm.

[0018] In a preferred embodiment of this utility model, the tensioning mechanism is rotatably connected to the main body of the belt pulley via a deep groove ball bearing. The inner ring of the deep groove ball bearing is interference-fitted with the pivot, and the outer ring is transition-fitted with the mounting hole of the tensioning mechanism.

[0019] A second objective of this invention is to provide a device using the aforementioned belt pulley, comprising:

[0020] A conveyor assembly, wherein the conveyor assembly is provided with a cloth belt for carrying and conveying products;

[0021] The drive wheel and the belt pulley are mounted on the drive wheel and the belt pulley is arranged on the moving path of the belt. The belt runs around the outer circumference of the rubber strip of the belt pulley. The contact between the rubber strip and the belt reduces the outer diameter runout during operation.

[0022] A slitting mechanism is provided with a slitting blade, which is arranged along the moving direction of the product and is adapted to slitting the product conveyed to the slitting position via the conveyor belt.

[0023] Beneficial effects

[0024] This invention utilizes a rotatable tensioning mechanism to directly tighten and lock both ends of the rubber strip, replacing the traditional integral rubber ring or multi-piece spliced ​​structure. This design ensures a tight fit and synchronous rotation between the rubber strip and the main body of the belt pulley, fundamentally reducing belt speed fluctuations and outer diameter runout caused by slippage or assembly errors. Experiments show that using the belt pulley of this invention, the outer diameter runout of the belt on the outer circumference of its rubber strip can be controlled within 0.3mm, significantly improving the accuracy of product length cutting. Furthermore, replacing the rubber strip does not require disassembling the entire pulley, simplifying operation and increasing maintenance efficiency. Attached Figure Description

[0025] Figure 1 Schematic diagram of the cloth belt pulley in Example 1 Figure 1 ;

[0026] Figure 2 Front view of the belt pulley in Example 1;

[0027] Figure 3 Schematic diagram of the cloth belt pulley in Example 1 Figure 2 ;

[0028] Figure 4 Schematic diagram of the cloth belt pulley in Example 1 Figure 3 ;

[0029] Figure 5 Front view of the rotating tensioning wheel of the belt pulley in Example 1;

[0030] Figure 6 Side view of the rotating tensioning wheel of the belt pulley in Example 1;

[0031] Figure 7 A schematic diagram of the locking sleeve for the belt pulley in Example 1;

[0032] Figure 8 A schematic diagram of the locking bolt for the belt pulley in Example 1;

[0033] Figure 9 Schematic diagram of the device using a cloth belt pulley in Example 2;

[0034] The components are labeled as follows: 1-Main body of the belt pulley; 11-Outer circumferential surface; 12-Mounting groove; 13-Axial fixing hole; 14-Fan-shaped recessed area; 2-Rubber strip; 3-Tensioning mechanism; 31-Radial groove; 32-Rotating tensioning wheel; 321-Threaded hole; 322-Rotating operating hole; 33-Tightening screw; 4-Tensioning locking mechanism; 41-Locking fixing sleeve; 411-Locking through hole; 42-Locking bolt; 5-Belt; 6-Product; 7-Slitting mechanism. Detailed Implementation

[0035] The present invention will be described in detail below with reference to the embodiments, so that those skilled in the art can better understand the present invention, but the present invention is not limited to the following embodiments.

[0036] Example 1

[0037] like Figure 1-8 As shown, a cloth belt pulley includes a cloth belt pulley body 1, a rubber strip 2, a tensioning mechanism 3, and a tensioning locking mechanism 4.

[0038] The main body 1 of the belt pulley has an outer circumferential surface 11, on which a mounting groove 12 is formed in the radial direction, and the mounting groove 12 penetrates the outer circumferential surface 11. The rubber strip 2 is elongated and is arranged circumferentially along the outer circumferential surface 11 of the main body 1 of the belt pulley.

[0039] The tensioning mechanism 3 is rotatably mounted on the belt pulley body 1 via a pivot (not shown). The tensioning mechanism 3 includes a rotating tensioning wheel 32 and a tightening screw 33. The rotating tensioning wheel 32 is provided with a radial groove 31 extending along its axial direction, which engages with the mounting groove 12 during installation. The rotating tensioning wheel 32 is also provided with a threaded hole 321 communicating with the radial groove 31.

[0040] During installation, both ends of the rubber strip 2 pass through the mounting groove 12 and are accommodated in the radial groove 31. Subsequently, the tightening screw 33 is screwed into the threaded hole 321, so that its end abuts against the end surface of the rubber strip 2, thereby achieving initial fixation of the end of the rubber strip 2.

[0041] To further ensure the fixing effect, two tightening screws 33 are provided in this embodiment. These two tightening screws 33 are symmetrically arranged on both sides of the rubber strip 2 in the width direction.

[0042] The tensioning and locking mechanism 4 includes a locking sleeve 41 and a locking bolt 42. The locking sleeve 41 is an open annular structure, fitted onto the outer circumferential surface of the rotating tension wheel 32, and generates a clamping force through the tightening effect of its opening. An axial fixing hole 13 is provided on the main body 1 of the belt pulley. A locking through hole 411 is provided on the locking sleeve 41.

[0043] When a tool (such as a hexagonal wrench) is inserted into the hexagonal rotating operating hole 322 in the middle of the rotating tensioning wheel 32, and the rotating tensioning wheel 32 is rotated until the rubber strip 2 reaches the predetermined tension state, the locking bolt 42 is passed through the axial fixing hole 13 and screwed into the locking through hole 411. By tightening the locking bolt 42, the rotation of the locking fixing sleeve 41 and the rotating tensioning wheel 32 fixed thereto relative to the belt pulley body 1 is restricted, thereby locking the entire tension state.

[0044] As a preferred embodiment, a fan-shaped recessed area 14 is provided on the outer surface of the main body 1 of the cloth belt pulley. This effectively reduces the overall weight of the cloth belt pulley while ensuring structural strength.

[0045] Example 2

[0046] This embodiment provides a device using the belt pulley as described in Embodiment 1, such as... Figure 9 As shown, it includes a conveying assembly, a drive wheel, a belt pulley, and a slitting mechanism 7.

[0047] The conveying assembly is equipped with a cloth belt 5 for carrying and conveying the product 6 (such as a filter rod). The cloth belt pulley is mounted on the drive wheel and is set on the moving path of the cloth belt 5. The cloth belt 5 wraps around the outer circumferential surface 11 of the rubber strip 2 of the cloth belt pulley.

[0048] The belt pulley of this invention, through its unique tensioning structure, ensures the high roundness consistency of the contact surface between the rubber strip 2 and the belt 5. The measured outer diameter runout of the belt 5 on this belt pulley is less than or equal to 0.3mm, which greatly improves the smoothness of operation.

[0049] The slitting mechanism 7 is equipped with a slitting blade to precisely slit the product 6 that is conveyed to the slitting station by the conveyor belt 5.

[0050] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A cloth belt pulley, characterized in that, include: The main body of the cloth belt pulley (1) has an outer circumferential surface (11) and a mounting groove (12) is provided on the main body of the cloth belt pulley (1) in the radial direction, which is connected to and penetrates the outer circumferential surface (11). Rubber strip (2), the rubber strip (2) is circumferentially attached to the outer circumferential surface (11) of the cloth belt wheel body (1), and the outer surface of the rubber strip (2) is coplanar with the outer circumferential surface (11) of the cloth belt wheel body (1) or protrudes from the outer circumferential surface (11) by 0.5-2mm; Tensioning mechanism (3), which is rotatably mounted on the belt pulley body (1) via a pivot or bearing, is provided with a radial groove (31) that engages with the mounting groove (12). The tensioning mechanism (3) is adapted to receive and lock the two ends of the rubber strip (2) passing through the mounting groove (12) via the radial groove (31). The tensioning and locking mechanism (4) includes a locking component that passes through the belt pulley body (1) and is connected to the tensioning mechanism (3). The tensioning and locking mechanism (4) is adapted to restrict the rotation of the tensioning mechanism (3) relative to the belt pulley body (1) when the tensioning mechanism (3) is rotated to the tension position.

2. The belt pulley according to claim 1, characterized in that: The tensioning mechanism (3) includes a rotating tensioning wheel (32) and a tightening screw (33). The radial groove (31) extends along the axial direction of the rotating tensioning wheel (32) and is disposed on the rotating tensioning wheel (32). The rotating tensioning wheel (32) is provided with a threaded hole (321) communicating with the radial groove (31). The tightening screw (33) is adapted to be threaded into the threaded hole (321) and abut against the end surface of the rubber strip (2) in the radial groove (31) to restrict the movement of the rubber strip (2) in the radial groove (31).

3. The belt pulley according to claim 2, characterized in that: Two tightening screws (33) are provided, and the two tightening screws (33) are symmetrically arranged on both sides of the rubber strip (2) in the width direction within the radial groove (31).

4. The belt pulley according to claim 1, characterized in that: The main body (1) of the belt pulley is provided with an axial fixing hole (13); The tensioning and locking mechanism (4) includes a locking sleeve (41) and a locking bolt (42). The locking sleeve (41) is provided with a locking through hole (411). The locking sleeve (41) is an open annular structure with an opening width suitable for pressing against the outer circumferential surface of the tensioning mechanism (3) by tightening. The locking bolt (42) is adapted to pass through the axial fixing hole (13) and be threaded into the locking through hole (411) to restrict the rotation of the locking sleeve (41) relative to the belt pulley body (1) and fix the locking sleeve (41) on the tensioning mechanism (3).

5. The belt pulley according to claim 2, characterized in that: The rotating tensioning wheel (32) has a rotating operation hole (322) in the middle. The rotating operation hole (322) is a hexagonal hole, and the depth of the rotating operation hole (322) is 1 / 2 to 2 / 3 of the thickness of the rotating tensioning wheel (32). The inner wall is provided with an anti-rust coating.

6. The belt pulley according to claim 1, characterized in that: The outer surface of the main body (1) of the cloth belt pulley is provided with at least two fan-shaped sinking areas (14) evenly distributed in the circumferential direction, and the depth of the fan-shaped sinking area (14) is 3-8mm.

7. The belt pulley according to claim 1, characterized in that: The rubber strip (2) is made of nitrile rubber or fluororubber with a Shore hardness of 60-80HA. The outer surface of the rubber strip (2) is provided with anti-slip textures extending along the axial direction, and the spacing of the anti-slip textures is 1-3mm.

8. The belt pulley according to claim 1, characterized in that: The tensioning mechanism (3) is rotatably connected to the belt pulley body (1) via a deep groove ball bearing. The inner ring of the deep groove ball bearing is interference-fitted with the pivot, and the outer ring is transition-fitted with the mounting hole of the tensioning mechanism (3).

9. A device using a belt pulley as described in any one of claims 1-8, characterized in that, include: The conveying assembly is provided with a cloth belt (5) for carrying and conveying the product (6). The cloth belt (5) is made of nylon canvas with a thickness of 0.8-1.5mm, and the surface of the cloth belt (5) is provided with a wear-resistant coating. The drive wheel and the belt pulley are mounted on the drive wheel. The belt pulley is located on the moving path of the belt (5). The belt (5) travels around the outer circumferential surface (11) of the rubber strip (2) of the belt pulley. The contact between the rubber strip (2) and the belt (5) reduces the outer diameter runout during operation. The slitting mechanism (7) is provided with a slitting blade, which is arranged along the moving direction of the product (6) and is adapted to slitting the product (6) conveyed to the slitting position via the belt (5).

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