Unwinding device with adjustable axial position

Abstract

The utility model relates to the technical field of unreeling devices, in particular to an axial-position-adjustable unreeling device which comprises a support, an adjusting assembly is fixed to one side of the support, a containing groove is formed in the top of the support, an unreeling roller is installed in the containing groove, and a stepped shaft is arranged at one end of the unreeling roller. The adjusting assembly comprises a Z-shaped mounting plate, a lead screw, a hand wheel and a movable base, the Z-shaped mounting plate is fixed to one side of the support, and the lead screw is rotationally connected with the Z-shaped mounting plate; the hand wheel is fixed to the end of the lead screw. The movable base is arranged on the Z-shaped mounting plate, the movable base is in sliding connection with the Z-shaped mounting plate, and the movable base is in threaded connection with the lead screw; a bearing is arranged at the top of the movable base, rotationally connected with the movable base and located between the end face of the stepped shaft and the end face of the unwinding roller. The utility model provides an unwinding device with an adjustable axial position. The unwinding device can solve the technical problem that in the prior art, an adjusting assembly is poor in durability.

Description

Technical Field

[0001] The utility model relates to the technical field of unwinding devices, in particular to an unwinding device with adjustable axial position. Background Art

[0002] The coating machine generally needs to use an unwinding device to unwind the rolled substrate and then apply a layer of specific glue, coating or ink on the substrate, and then rewind the coated substrate using a rewinding device.

[0003] The existing unwinding device generally uses an unwinding roller for unwinding, but it is impossible to judge in advance whether the positions of the unwinding roller and the winding roller of the winding device correspond. The relative position of the unwinding roller and the winding roller can only be confirmed when the coating machine starts working. At this time, the axial position of the running unwinding roller is generally adjusted.

[0004] For example, the prior art, publication number: CN218144719U, discloses a reeling device with an axial adjustment function, including a reeling bracket, a reeling roller, and an adjustment assembly for axially adjusting the reeling roller, the reeling bracket is provided with a limit groove for radially limiting the reeling roller, the reeling roller is slidably installed in the limit groove, the adjustment assembly includes an adjustment bracket fixedly installed on the reeling bracket, an adjustment rod threadedly inserted on the adjustment bracket, a first adjustment ring axially fixedly installed on the adjustment rod, and a second adjustment ring axially fixedly installed on the reeling roller, the outer wall of the second adjustment ring is provided with an adjustment groove, and the first adjustment ring is clamped and installed in the adjustment groove. With the adjustment assembly, the prior art can realize the axial position adjustment of the reeling roller in operation.

[0005] However, the prior art still has the following technical problems: the end face of the first adjusting ring of the prior art adjusting assembly contacts the inner wall of the adjusting groove of the second adjusting ring, and as the unwinding roller rotates, there is always planar friction between the inner wall of the adjusting groove and the end face of the first adjusting ring, resulting in significant wear on the end face of the first adjusting ring and the inner wall of the adjusting groove. In order to ensure the adjustment accuracy, the first adjusting ring and the second adjusting ring need to be replaced frequently. Utility Model Content

[0006] The utility model provides an unwinding device with adjustable axial position, which can solve the technical problem of poor durability of the regulating components in the prior art.

[0007] The present application provides the following technical solution: an axially position adjustable unwinding device, comprising a bracket, an adjustment component is fixed to one side of the bracket, a placement groove is opened on the top of the bracket, an unwinding roller is installed in the placement groove, and a stepped shaft is arranged at one end of the unwinding roller;

[0008] The adjustment assembly includes a Z-shaped mounting plate, a screw rod, a handwheel and a movable base. The Z-shaped mounting plate is fixed to one side of the bracket, and the screw rod is rotatably connected to the Z-shaped mounting plate; the handwheel is fixed to the end of the screw rod; the movable base is arranged on the Z-shaped mounting plate, the movable base is slidably connected to the Z-shaped mounting plate, and the movable base is threadedly connected to the screw rod; a bearing is arranged on the top of the movable base, the bearing is rotatably connected to the movable base, and the bearing is located between the end face of the stepped shaft and the end face of the unwinding roller.

[0009] Technical principle: Changing plane friction to rolling friction can effectively reduce friction and effectively improve the durability of the equipment.

[0010] Beneficial effects:

[0011] 1. Placing the unwinding roller into the placement groove at the top of the bracket can prevent the longitudinal displacement of the unwinding shaft when it rotates, and the stepped shaft at the end of the unwinding roller can be used to cooperate with the adjustment component so that the axial position of the unwinding roller can be adjusted when it rotates.

[0012] 2. The Z-shaped mounting plate is used to install the screw rod, hand wheel and movable base, and enables the movable base to be located between the end face of the stepped shaft and the end face of the unwinding roller directly below the stepped shaft, so as to facilitate the contact between the bearing on the top of the movable base and the end face of the stepped shaft or the end face of the unwinding roller, and because the bearing is rotatably connected to the movable base, when the stepped shaft rotates with the unwinding roller, the end face of the stepped shaft or the end face of the unwinding roller is in rolling contact with the outer surface of the bearing and drives the bearing to rotate, thereby effectively avoiding the defect of large wear caused by the plane contact in the prior art and effectively improving the durability of the equipment.

[0013] The hand wheel is used to rotate the screw rod to make the movable base move axially, and the outer surface of the bearing on the top of the movable base contacts the end face of the stepped shaft or the end face of the unwinding roller, thereby pushing the unwinding roller to move axially.

[0014] Furthermore, strip grooves and through holes are provided on the side of the bracket and the upper surface of one end of the Z-shaped mounting plate. The position of the strip groove on the Z-shaped mounting plate corresponds to the position of the through hole on the side of the bracket, and the position of the through hole on the Z-shaped mounting plate corresponds to the position of the strip groove on the side of the bracket.

[0015] Beneficial effect: Strip grooves and through holes are respectively arranged on the side of the bracket and the Z-shaped mounting plate, and the strip grooves and the through holes are made to correspond to each other, so that the vertical position of the Z-shaped mounting plate can be adjusted, thereby changing the contact surface size between the outer surface of the bearing and the end face of the unwinding roller or the end face of the stepped shaft.

[0016] Furthermore, a slide groove is provided on the middle end surface of the Z-shaped mounting plate, and the movable base is slidably connected to the slide groove.

[0017] Beneficial effect: The movable base can be fixed on the Z-shaped mounting plate by means of the slide groove, and the moving direction and stroke of the movable base are fixed, thereby ensuring the accuracy and safety of the axial displacement of the unwinding roller under the control of the adjusting device when the unwinding roller rotates, and preventing the unwinding roller from moving too long and causing damage to the equipment.

[0018] Furthermore, an annular boss is arranged on the top of the movable base, the inner wall of the annular boss is inclined outward to form a flared shape, a bearing mounting column is arranged in the middle of the annular boss, and the bearing is fixed on the bearing mounting column.

[0019] Beneficial effects: The annular boss can provide a certain degree of support for the bottom of the bearing, thereby improving the structural strength of the bearing. After the bearing is installed on the bearing mounting column, the inner wall of the annular boss tilts outward to form a flared shape, creating a holding space between the outer surface of the bearing and the inner wall of the annular boss. Since lubricating oil is often applied between the bearing and the stepped shaft or the end face of the unwinding roller to further reduce friction, the holding space can be used to accommodate the lubricating oil that falls from the bearing, stepped shaft and the end face of the unwinding roller. The collected lubricating oil can continuously lubricate the bearing, and a brush can be used to re-apply the fallen lubricating oil to the stepped shaft and the end face of the unwinding roller, thereby improving the utilization rate of the lubricating oil.

[0020] Furthermore, a clamping device is provided on the top of the bracket, and the clamping device includes a pressing block, a locking mechanism and a pressing wheel. One end of the pressing block is hinged to the bracket, and a locking groove is opened at the other end of the pressing block. The locking mechanism is arranged on the bracket corresponding to the locking groove. A pressing wheel mounting hole is opened in the middle of the pressing block, and a pressing wheel support column is installed in the pressing wheel mounting hole. The end of the pressing wheel support column is rotatably connected to the pressing wheel.

[0021] Beneficial effect: The pressure block and the locking mechanism cooperate to lock the unwinding roller in the prevention groove to prevent its vertical displacement. Since a pressure wheel is provided in the middle of the pressure block, the pressure wheel contacts and rotates with the unwinding roller, thereby avoiding contact between the unwinding roller and the lower surface of the pressure block to generate plane friction, thereby effectively improving the durability of the unwinding roller.

[0022] Furthermore, the locking mechanism includes a rocker and a locking handwheel, the rocker is rotatably connected to the bracket, a thread is provided at the end of the rocker, and the locking handwheel is threadedly connected to the rocker.

[0023] Beneficial effects: the locking hand wheel is connected to the rocker arm through a thread, so that the locking hand wheel can be tightened or loosened to fix or loosen the pressure block; the rocker arm is rotatably connected to the bracket, so that the rocker arm can be rotated and moved out of the locking groove of the pressure block after the locking hand wheel is loosened to lift the pressure block, and it is also convenient to cooperate with the locking hand wheel to lock and fix the pressure block when the pressure block is pressed down.

[0024] Furthermore, a limiting threaded hole is opened on the upper surface of the pressure block above the pressure wheel mounting hole, the limiting threaded hole is connected to the pressure wheel mounting hole, and a limiting screw is arranged in the limiting threaded hole.

[0025] Beneficial effect: The limit screw can lock the pressure wheel support column in the pressure wheel mounting hole through the limit threaded hole, and prevent the pressure wheel support column from rotating with the pressure wheel, thereby ensuring the stability of the pressure wheel after contacting the unwinding roller when the pressure block presses the unwinding roller.

[0026] Furthermore, a support bearing is provided on the bracket below the placement groove.

[0027] Beneficial effect: The support bearing can be used to prevent the unwinding roller from contacting the bottom of the placement groove, so that the unwinding roller is lifted by the support bearing, and when the unwinding roller rotates, the support bearing is driven to rotate together, reducing the friction between the unwinding roller and the support bearing, and increasing the service life of the unwinding roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a front view of an embodiment 1 of an unwinding device with adjustable axial position according to the utility model;

[0029] Figure 2 for Figure 1 Left view of .

[0030] Figure 3 for Figure 1 Left view of the stereogram.

[0031] Figure 4 for Figure 1 Right side view of the stereogram.

[0032] Figure 5 This is a three-dimensional diagram of a movable base of Example 2 of an unwinding device with adjustable axial position according to the utility model. DETAILED DESCRIPTION

[0033] The following is further described in detail through specific implementation methods:

[0034] The marks in the drawings in the specification include: bracket 1, adjustment assembly 2, Z-shaped mounting plate 21, strip groove 211, through hole 212, slide groove 213, screw 22, handwheel 23, movable base 24, bearing 241, annular boss 242, unwinding roller 3, stepped shaft 31, clamping device 4, pressure block 41, locking groove 411, rocker 42, locking handwheel 43, pressure wheel 44, pressure wheel mounting hole 441, limit screw 442, support bearing 5.

[0035] Example 1

[0036] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, an axially position adjustable unwinding device includes a bracket, an adjustment component 2 is fixed on one side of the bracket, a clamping device 4 is arranged on the top of the bracket, a placement slot is opened on the top of the bracket, an unwinding roller 3 is installed in the placement slot, and a stepped shaft 31 is arranged at one end of the unwinding roller 3. When specifically set, in order to facilitate replacement, the stepped shaft 31 can be a subsequent installation part welded and fixed to the end of the unwinding roller 3, or it can be integrally formed with the unwinding roller 3. In this embodiment, the stepped shaft 31 is selected to be integrally formed with the unwinding roller 3. A support bearing 5 is arranged on the bracket below the placement slot. When specifically set, two support bearings 5 ​​are symmetrically arranged under the bracket below the placement slot, and the support bearings 5 ​​are rotatably connected to the support bearing 5 mounting column welded on the bracket.

[0037] The adjustment component 2 includes a Z-shaped mounting plate 21, a screw rod 22, a hand wheel 23 and a movable base 24. The Z-shaped mounting plate 21 is fixed to one side of the bracket. The side edge of the bracket and the upper surface of one end of the Z-shaped mounting plate 21 are provided with a strip groove 211 and a through hole 212. The position of the strip groove 211 on the Z-shaped mounting plate 21 corresponds to the position of the through hole 212 on the side edge of the bracket, and the position of the through hole 212 on the Z-shaped mounting plate 21 corresponds to the position of the strip groove 211 on the side edge of the bracket. This arrangement facilitates the adjustment of the vertical position of the Z-shaped mounting plate 21. The screw rod 22 is rotatably connected to the Z-shaped mounting plate 21; the handwheel 23 is fixed to the end of the screw rod 22; a slide groove 213 is opened on the middle end face of the Z-shaped mounting plate 21, the movable base 24 is slidably connected to the slide groove 213, and the movable base 24 is threadedly connected to the screw rod 22; a bearing 241 is arranged on the top of the movable base 24, the bearing 241 is rotatably connected to the movable base 24, and after the movable base 24 is installed, the bearing 241 is located between the end face of the stepped shaft 31 and the end face of the unwinding roller 3.

[0038] The clamping device 4 includes a clamping block 41, a locking mechanism and a clamping wheel 44. One end of the clamping block 41 is hinged to the bracket, and the other end of the clamping block 41 is provided with a locking groove 411. The locking mechanism is arranged on the bracket corresponding to the locking groove 411. A clamping wheel mounting hole 441 is arranged in the middle of the clamping block 41. A clamping wheel 44 supporting column is installed in the clamping wheel mounting hole 441, and the end of the clamping wheel 44 supporting column is rotatably connected to the clamping wheel 44. A limiting threaded hole is arranged on the upper surface of the clamping block 41 above the clamping wheel mounting hole 441. The limiting threaded hole is connected to the clamping wheel mounting hole 441, and a limiting screw 442 is arranged in the limiting threaded hole. The locking mechanism includes a rocker 42 and a locking handwheel 43. The rocker 42 is rotatably connected to the bracket, and a thread is arranged at the end of the rocker 42. The locking handwheel 43 is threadedly connected to the rocker 42.

[0039] Here’s how to use it:

[0040] Adjust the vertical position of the Z-shaped mounting plate 21. Loosen the bolts set in the strip groove 211 and the through hole 212, and move the vertical height of the Z-shaped mounting plate 21 vertically to change the contact area between the outer surface of the bearing 241 and the left end surface of the unwinding roller 3 or the right end surface of the stepped shaft 31.

[0041] Adjust the axial position of the unwinding roller 3. During the operation of the unwinding roller 3, the hand wheel 23 is rotated to rotate the screw rod 22, and the thread on the screw rod 22 drives the movable base 24 to move along the slide groove 213, so that the bearing 241 on the top of the movable base 24 contacts the left end surface of the unwinding roller 3 or the right end surface of the stepped shaft 31 and pushes the unwinding roller 3 to move right or left axially, and at the same time, the bearing 241 rotates under the drive of the unwinding roller 3, thereby reducing friction.

[0042] Example 2

[0043] like Figure 5 As shown, an annular boss 242 is provided on the top of the movable base 24, the inner wall of the annular boss 242 is inclined outward to form a flared shape, a bearing 241 mounting column is provided in the middle of the annular boss 242, and the bearing 241 is fixed on the bearing 241 mounting column.

[0044] This arrangement facilitates the use of the space between the inner wall of the annular boss 242 and the outer surface of the bearing 241 to receive the lubricating oil dropped from the surface of the bearing 241, the left end face of the unwinding roller 3 or the right end face of the stepped shaft 31, and the collected lubricating oil can be used to repeatedly lubricate the parts, and the cleanliness of the adjustment component 2 can be ensured.

[0045] The above is only an embodiment of the utility model. The utility model is not limited to the field involved in this implementation case. The common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model 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. An axially position adjustable unwinding device, comprising a bracket, an adjustment component is fixed to one side of the bracket, characterized in that: A placement groove is provided on the top of the bracket, a reeling roller is installed in the placement groove, and a stepped shaft is provided at one end of the reeling roller; The adjustment assembly includes a Z-shaped mounting plate, a screw rod, a handwheel and a movable base, wherein the Z-shaped mounting plate is fixed to one side of the bracket, and the screw rod is rotatably connected to the Z-shaped mounting plate; the handwheel is fixed to the end of the screw rod; the movable base is slidably connected to the Z-shaped mounting plate, and the movable base is threadedly connected to the screw rod; a bearing is rotatably connected to the top of the movable base, and the bearing is located between the end face of the stepped shaft and the end face of the unwinding roller.

2. The unwinding device with adjustable axial position according to claim 1, characterized in that: The side edge of the bracket and the upper surface of one end of the Z-shaped mounting plate are both provided with strip grooves and through holes. The position of the strip groove on the Z-shaped mounting plate corresponds to the position of the through hole on the side edge of the bracket, and the position of the through hole on the Z-shaped mounting plate corresponds to the position of the strip groove on the side edge of the bracket.

3. The unwinding device with adjustable axial position according to claim 2, characterized in that: A slide groove is provided on the middle end surface of the Z-shaped mounting plate, and the movable base is slidably connected in the slide groove.

4. The unwinding device with adjustable axial position according to claim 1, characterized in that: An annular boss is arranged on the top of the movable base, the inner wall of the annular boss is inclined outward to form a flared shape, a bearing mounting column is arranged in the middle of the annular boss, and the bearing is fixed on the bearing mounting column.

5. The unwinding device with adjustable axial position according to claim 1, characterized in that: A clamping device is provided on the top of the bracket, and the clamping device includes a clamping block, a locking mechanism and a clamping wheel. One end of the clamping block is hinged to the bracket, and a locking groove is provided at the other end of the clamping block. The locking mechanism is provided on the bracket corresponding to the locking groove. A clamping wheel mounting hole is provided in the middle of the clamping block, and a clamping wheel support column is installed in the clamping wheel mounting hole. The end of the clamping wheel support column is rotatably connected to the clamping wheel.

6. The unwinding device with adjustable axial position according to claim 5, characterized in that: The locking mechanism comprises a rocker and a locking hand wheel, the rocker is rotatably connected to the bracket, a thread is arranged at the end of the rocker, and the locking hand wheel is threadedly connected to the rocker.

7. The unwinding device with adjustable axial position according to claim 5, characterized in that: A limiting threaded hole is formed on the upper surface of the pressing block above the pressing wheel mounting hole. The limiting threaded hole is communicated with the pressing wheel mounting hole, and a limiting screw is arranged in the limiting threaded hole.

8. The unwinding device with adjustable axial position according to claim 1, characterized in that: A support bearing is arranged on the bracket below the placement groove.

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