Material shaft pressing assembly and winding and unwinding device

Abstract

The utility model relates to the technical field of unwinding equipment, in particular to a material shaft pressing assembly and a winding and unwinding device, which comprises a support and a pressing assembly arranged on the side wall of the support. A step is arranged on the top of the support, a containing groove is formed in the step, a material shaft is installed in the containing groove, and a stepped shaft is arranged at one end of the material shaft. The pressing assembly comprises an L-shaped pressing block and a locking mechanism, one end of the L-shaped pressing block is rotationally connected with the support, a platform is arranged at the other end of the L-shaped pressing block, and a through groove is formed in the platform; a pressing bearing is arranged in the middle of the L-shaped pressing block and rotationally connected with the L-shaped pressing block. The locking mechanism is arranged on the side wall of the support, and a spring is arranged between the locking mechanism and the platform. The utility model provides a material shaft pressing assembly and a winding and unwinding device. The technical problem that a material shaft falls off due to the fact that the pressing assembly is loosened due to too large vibration can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of unwinding equipment, in particular to a material shaft pressing component and a winding and unwinding device. Background Art

[0002] Before unwinding or rewinding the coating machine, it is generally necessary to remove the material shaft, reinstall the material roll on the material shaft, then reinstall the material shaft on the bracket, and use the clamping assembly to tighten the material shaft to prevent the material shaft from falling off due to excessive vibration during the unwinding and rewinding process, causing damage to personnel and equipment.

[0003] As in the prior art, authorization announcement number: CN213445409U, discloses an anti-deviation winding and unwinding device, including an unwinding pallet, an unwinding pressure plate and an unwinding body, the unwinding body is mounted on the unwinding pallet, the unwinding pressure plate is hinged to the top of the unwinding pallet, and bearings are provided on the side of the unwinding pressure plate and the side of the unwinding pallet. The unwinding pressure plate can press the unwinding body on the unwinding pallet to prevent it from being displaced during rotation, and the bearing is driven to rotate after contacting the unwinding body.

[0004] However, the existing technology still has the following technical problems: the unwinding body generates large vibrations during rotation, which easily makes it impossible for the pressure plate to effectively lock the unwinding body, causing the unwinding body to fall off and cause damage to personnel and equipment. Utility Model Content

[0005] The utility model provides a material shaft pressing component and a rewinding and unwinding device, which can solve the technical problem that the material shaft falls off due to loosening of the pressing component caused by excessive vibration.

[0006] This application provides the following technical solutions:

[0007] A material shaft pressing assembly and a winding and unwinding device, comprising a bracket and a pressing assembly, wherein the pressing assembly is arranged on the side wall of the bracket; a step is arranged on the top of the bracket, a placement groove is opened on the step, a material shaft is installed in the placement groove, and a stepped shaft is arranged at one end of the material shaft;

[0008] The clamping assembly includes an L-shaped pressure block and a locking mechanism. One end of the L-shaped pressure block is rotatably connected to the bracket, and the other end of the L-shaped pressure block is provided with a platform with a through groove; a pressure bearing is provided in the middle of the L-shaped pressure block, and the pressure bearing is rotatably connected to the L-shaped pressure block; the locking mechanism is provided on the side wall of the bracket, and a spring is provided between the locking mechanism and the platform.

[0009] Beneficial effects:

[0010] 1. The spring between the locking mechanism and the end platform of the L-shaped pressing block has the following advantages: (1) while ensuring the pressing effect of the L-shaped pressing block on the material shaft, the vertical vibration generated by the material shaft during rotation can be offset by the spring, thereby preventing the pressing bearing set in the middle of the L-shaped pressing block from crushing the outer surface of the material shaft; (2) when the locking mechanism locks the L-shaped pressing block, the spring can provide a pre-tightening force, so that the locking mechanism can maintain a vertical state without swinging or loosening when there is no external force, thereby helping to improve the locking efficiency, and the elastic force of the spring can prevent the locking mechanism from falling off when the material shaft rotates, so that the locking mechanism is always in a state of locking the L-shaped pressing block, thereby preventing the material shaft from falling out of the placement slot due to failure to be locked, causing damage to personnel and equipment.

[0011] 2. The clamping assembly is arranged on the side wall of the bracket to facilitate the rotation of the clamping block, which is conducive to leaving enough space for disassembling and installing the material shaft when disassembling the material shaft; the step on the top of the bracket can be used as an intermediate placement platform for the material shaft after disassembling the material shaft, and can also be used as an auxiliary platform when installing the material shaft with coiled materials, which is convenient for disassembling and installing the material shaft; a platform is set at one end of the L-shaped clamping block, and a through groove is opened on the platform. The platform is convenient for setting a spring to form a buffer, and the through groove is convenient for installing a locking mechanism; the clamping bearing in the middle of the L-shaped clamping block is used to contact the outer surface of the material shaft and rotate under the drive of the material shaft, which can ensure the clamping effect on the material shaft and reduce the friction between the material shaft and the clamping bearing.

[0012] Furthermore, the locking mechanism includes a fixed shaft, a rotating base and a handwheel, the fixed shaft is fixedly connected to the bracket, the rotating base is rotatably connected to the fixed shaft, and the handwheel is detachably connected to the rotating base.

[0013] Beneficial effects: The fixed shaft arranged on the side of the bracket can be used to set the rotating base, and can also be used to support the pressing block to facilitate locking the material shaft. The hand wheel and the rotating base can cooperate to lock the pressing block.

[0014] Furthermore, the handwheel includes a wheel body and a rod body, the wheel body is fixedly connected to the rod body, the rod body is detachably connected to the rotating base, and a spring is provided on the rod body, and the spring is located between the platform and the wheel body.

[0015] Beneficial effect: The wheel body is used to tighten or loosen the rod body and the rotating base. A spring is set on the rod body and the spring is located between the platform and the wheel body, so that after the handwheel locks the pressure block, the compression bearing is pressed against the material shaft. When the material shaft vibrates due to rotation, the spring set on the rod body between the platform and the wheel body can apply a compression force to the pressure block, so that the compression bearing on the pressure block maintains contact with the material shaft, thereby avoiding damage to the outer surface of the material shaft due to the compression bearing bouncing up and then falling down, and the spring can also effectively buffer the material shaft to avoid excessive vibration of the material shaft.

[0016] Furthermore, the fixed shaft is a stepped shaft, and a locking nut is provided at the end of the stepped shaft.

[0017] Beneficial effects: The fixed shaft is a stepped shaft. This setting can avoid direct contact between the pressing block and the rotating base on the fixed shaft and the side wall of the bracket, making it easier to place the pressing block on the fixed shaft and lock it. The locking nut set at the end of the stepped shaft can cooperate with the shoulder of the stepped shaft to lock the pressing block on the fixed shaft, which is beneficial to improving the stability of the overall structure.

[0018] Furthermore, it also includes an adjustment component arranged on the side wall of the bracket, the adjustment component includes a Z-shaped mounting plate, a movable base and a screw handwheel, the Z-shaped mounting plate is fixed to one side of the bracket, a slide groove is opened in the middle of the Z-shaped mounting plate, the movable base is slidably connected to the slide groove, the screw handwheel is rotatably connected to the Z-shaped mounting plate, and the screw handwheel is threadedly connected to the movable base; a bearing is rotatably connected to the top of the movable base.

[0019] Beneficial effect: The Z-shaped mounting plate can be used to effectively install the movable base and the screw handwheel in the appropriate position, so that when the screw handwheel is rotated, the movable base can move axially along the material shaft, and then the bearing connected to the top of the movable base can be pressed against the end face of the stepped shaft or the end face of the material shaft, thereby pushing the material shaft to move axially left and right.

[0020] Furthermore, it also includes a support assembly arranged on the side wall of the bracket, and the support assembly includes two support bearings rotatably connected to the side wall of the bracket.

[0021] Beneficial effect: The two support bearings of the support assembly and the clamping bearing on the pressing block can effectively fix the material shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a three-dimensional diagram of a material shaft pressing assembly and a winding and unwinding device according to a first embodiment of the present invention.

[0023] Figure 2 for Figure 1 A enlarged view of the middle clamping assembly. DETAILED DESCRIPTION

[0024] The following is further described in detail through specific implementation methods:

[0025] The marks in the drawings of the specification include: bracket 1, step 11, placement groove 12, clamping assembly 2, L-shaped pressure block 21, platform 211, through groove 212, clamping bearing 22, spring 23, fixed shaft 24, rotating base 25, handwheel 26, material shaft 3, stepped shaft 31, adjustment assembly 4, Z-shaped mounting plate 41, movable base 42, screw handwheel 43, bearing 44, support bearing 5.

[0026] Example 1

[0027] like Figure 1 As shown, a material shaft pressing assembly and a winding and unwinding device include a bracket 1 and a pressing assembly 2. A step 11 is provided on the top of the bracket 1. A placement groove 12 is opened on the step 11. A material shaft 3 is installed in the placement groove 12. A stepped shaft 31 is provided at one end of the material shaft 3.

[0028] like Figure 2 As shown, the clamping assembly 2 is arranged on the side wall of the bracket 1. The clamping assembly 2 includes an L-shaped clamping block 21 and a locking mechanism. One end of the L-shaped clamping block 21 is rotatably connected to the bracket 1, and the other end of the L-shaped clamping block 21 is provided with a platform 211, and the platform 211 is provided with a through slot 212. The L-shaped clamping block 21 has a hole in the middle, and a clamping bearing 22 fixing column is interference-fitted in the hole. The end of the clamping bearing 22 fixing column is fixed with a clamping bearing 22, and the clamping bearing 22 is rotatably connected to the clamping bearing 22 fixing column. The locking mechanism is arranged on the side wall of the bracket 1, and a spring 23 is provided between the locking mechanism and the platform 211. Specifically, the locking mechanism includes a fixed shaft 24, a rotating base 25, and a handwheel 26. The fixed shaft 24 is welded to the bracket 1, the rotating base 25 is rotatably connected to the fixed shaft 24, and the handwheel 26 is threadedly connected to the rotating base 25. The fixed shaft 24 is a stepped shaft, and a locking nut is provided at the end of the stepped shaft. The locking nut is used to cooperate with the shoulder of the stepped shaft to lock and fix the pressing block on the fixed shaft 24.

[0029] The handwheel 26 includes a wheel body for tightening or loosening the handwheel 26 and a rod body for connecting to the rotating base 25. The wheel body and the rod body are integrally formed, and a telescopic spring 23 is provided on the rod body. When the handwheel 26 is vertically placed in the through groove 212 of the L-shaped pressure block 21, the telescopic spring 23 is located between the platform 211 and the wheel body, so that the handwheel 26 can be kept vertical by the spring 23 without rotating and falling, so that the handwheel 26 can be tightened or loosened.

[0030] It also includes an adjustment component 4 arranged on the side wall of the bracket 1, and the adjustment component 4 includes a Z-shaped mounting plate 41, a movable base 42 and a screw handwheel 43. The Z-shaped mounting plate 41 is fixed to one side of the bracket 1, and a slide groove is opened in the middle of the Z-shaped mounting plate 41. The movable base 42 is slidably connected to the slide groove, the screw handwheel 43 is rotatably connected to the Z-shaped mounting plate 41, and the screw handwheel 43 is threadedly connected to the movable base 42; a bearing 44 is rotatably connected to the top of the movable base 42.

[0031] It also includes a support assembly arranged on the side wall of the bracket 1, and the support assembly includes two support bearing mounting columns welded and fixed to the side wall of the bracket, and two support bearings 5 ​​respectively rotatably connected to the ends of the support bearing mounting columns.

[0032] Here’s how to use it:

[0033] Install the coiled material. Loosen the handwheels 26 on the clamping devices at both ends of the material shaft 3, and turn the handwheels 26 so that the handwheels 26 and the rotating base 25 rotate around the fixed base to form a tree branch state. At this time, the L-shaped pressure block 21 is loosened and lifted, so that the material shaft 3 can be removed from the bracket 1, and the coiled material can be placed on the material shaft 3.

[0034] Install the material shaft 3 and the buffer. The step 11 provided on the top of the bracket 1 can be used to receive the material shaft 3 before placing the material shaft 3 with the coiled material in the placement groove 12, effectively reducing the difficulty of installing the material shaft 3 in the placement groove 12. The material shaft 3 is installed in the placement groove 12 so that the lower ends of the material shaft 3 contact the lower outer surface of the support bearing 5, and the end of the material shaft 3 with the stepped shaft 31 is located on the bracket 1 equipped with the adjustment component 4. Press down the L-shaped pressure block 21 so that the compression bearing 22 contacts the upper outer surface of the material shaft 3. At this time, the handwheel 26 and the spring 23 mounted on the handwheel 26 are rotated vertically together, so that the spring 23 is located between the lower surface of the handwheel 26 and the platform 211. Due to the pre-tightening force of the spring 23, the handwheel 26 will not swing and fall when it is not tightened. After the handwheel 26 is tightened, vertical vibration is generated when the material shaft 3 rotates, so that the side of the L-shaped pressure block 21 with the through groove 212 moves upward and is rebounded by the spring 23, thereby effectively achieving buffering.

[0035] The above is only an embodiment of the present invention. The present invention is not limited to the field involved in this implementation case. Common knowledge such as the specific structure and characteristics of the scheme is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A material shaft pressing assembly and a winding and unwinding device, comprising a bracket and a pressing assembly, characterized in that: The clamping assembly is arranged on the side wall of the bracket; a step is arranged on the top of the bracket, a placement groove is opened on the step, a material shaft is installed in the placement groove, and a stepped shaft is arranged at one end of the material shaft; The clamping assembly includes an L-shaped clamping block and a locking mechanism. One end of the L-shaped clamping block is rotatably connected to the bracket, and the other end of the L-shaped clamping block is provided with a platform, and a through groove is opened on the platform; a clamping bearing is provided in the middle of the L-shaped clamping block, and the clamping bearing is rotatably connected to the L-shaped clamping block; the locking mechanism is provided on the side wall of the bracket, and a spring is provided between the locking mechanism and the platform.

2. The material shaft pressing assembly and the winding and unwinding device according to claim 1, characterized in that: The locking mechanism comprises a fixed shaft, a rotating base and a hand wheel, wherein the fixed shaft is fixedly connected to the bracket, the rotating base is rotatably connected to the fixed shaft, and the hand wheel is detachably connected to the rotating base.

3. The material shaft pressing assembly and the winding and unwinding device according to claim 2, characterized in that: The hand wheel comprises a wheel body and a rod body, wherein the wheel body is fixedly connected to the rod body, the rod body is detachably connected to the rotating base, and a spring is arranged on the rod body, and the spring is located between the platform and the wheel body.

4. The material shaft pressing assembly and the winding and unwinding device according to claim 3, characterized in that: The fixed shaft is a stepped shaft, and a locking nut is arranged at the end of the stepped shaft.

5. The material shaft pressing assembly and the winding and unwinding device according to claim 4, characterized in that: It also includes an adjustment component arranged on the side wall of the bracket, the adjustment component includes a Z-shaped mounting plate, a movable base and a screw handwheel, the Z-shaped mounting plate is fixed to one side of the bracket, a slide groove is opened in the middle of the Z-shaped mounting plate, the movable base is slidably connected to the slide groove, the screw handwheel is rotatably connected to the Z-shaped mounting plate, and the screw handwheel is threadedly connected to the movable base; a bearing is rotatably connected to the top of the movable base.

6. The material shaft pressing assembly and the winding and unwinding device according to claim 5, characterized in that: It also includes a support assembly arranged on the side wall of the bracket, and the support assembly includes two support bearings rotatably connected to the side wall of the bracket.

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