Automatic unwinding device

Abstract

The utility model relates to the technical field of battery production, and discloses an automatic unwinding device. The automatic unwinding device comprises a rack, a driving assembly is fixedly arranged on one side of the rack, and the output end of the driving assembly is in driving connection with a rotating shaft; the rotating shaft is slidably sleeved with a sliding shaft sleeve, a material disc assembly is arranged on the sliding shaft sleeve, and the material disc assembly comprises a loading shaft sleeve, a left blocking disc and a right blocking disc, the sliding shaft sleeve on the right side of the charging tray assembly is sequentially provided with a U-shaped baffle and a reverse thread nut which is in threaded connection with the right end of the sliding shaft sleeve; and the shaft hole of the right baffle plate is smaller than the diameter of the U-shaped baffle plate and larger than the diameter of the reverse thread nut. The automatic unwinding device is simple in structure and low in manufacturing cost, coil stock replacement is more convenient and faster, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production, in particular to an automatic unwinding device. Background Art

[0002] The production process of battery cover plates involves an unwinding device, on which the coil is installed for unwinding and stretching, and then punched and formed by a punching machine. Due to the different specifications of battery cover plates, the required width of the coil is also different. Therefore, an unwinding device that can install and unwind coils of different widths is needed to complete the production process of battery cover plates.

[0003] The Chinese utility model patent with the announcement number CN 211110103 U discloses a reeling device, including a base; a support shaft, one end of which is connected to the base; a rotating drum, which is sleeved on the support shaft and rotates with the support shaft, and is used to set the material roll, and release the strip material on the material roll when the rotating drum rotates with the support shaft as the rotation center; wherein a fixed block and a pressure plate are provided on the rotating drum, and the fixed block and the pressure plate are respectively used to abut the opposite sides of the material roll, and the axial position of the pressure plate can be adjusted on the rotating drum. The reeling device is provided with a fastener that can be adjusted along the axial direction of the rotating drum, so that the rotating drum can be used to install material rolls of different widths.

[0004] Although the above patent solves the problem of being able to install coils of different widths, the unwinding device needs to disassemble and assemble a series of parts when replacing the coils, which increases its workload and reduces production efficiency.

[0005] Therefore, an automatic unwinding device is urgently needed to solve the above problems. Utility Model Content

[0006] Based on the above, the purpose of the utility model is to provide an automatic unwinding device to solve the problem that the unwinding device in the prior art has tedious disassembly and assembly work when taking and replacing the coil, which affects its production efficiency.

[0007] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0008] The utility model provides an automatic unwinding device comprising:

[0009] A frame, one side of which is fixedly provided with a driving assembly, an output end of which is drivingly connected to a rotating shaft, and the rotating shaft passes through the frame and extends to the other side of the frame;

[0010] A sliding sleeve is slidably arranged on the rotating shaft along the X axis, and a limiting screw is arranged on the sliding sleeve;

[0011] A material tray assembly is sleeved on the sliding sleeve, the material tray assembly includes a loading sleeve and a left baffle plate and a right baffle plate located on both sides of the loading sleeve, a key slot is opened on the inner hole wall of the loading sleeve, and the nut of the limiting screw is arranged in the key slot;

[0012] A limit assembly, comprising a "U"-shaped baffle plate arranged on the right side of the material tray assembly and a reverse thread nut threadedly connected to the right end of the sliding sleeve;

[0013] Wherein, the axial hole of the right baffle is smaller than the diameter of the "U"-shaped baffle and larger than the diameter of the reverse thread nut.

[0014] As an optional technical solution for an automatic unwinding device, a limiting groove is provided in the direction of the outer diameter axis of the rotating shaft, and the end of the limiting screw is arranged in the limiting groove.

[0015] As an optional technical solution for an automatic unwinding device, a spring is installed on the rotating shaft, one end of the spring abuts against the right side of the shoulder of the rotating shaft, and the other end of the spring abuts against the left side of the sliding sleeve.

[0016] As an optional technical solution for an automatic unwinding device, a first nut and a second nut are threadedly connected to the rotating shaft located on the right side of the sliding sleeve, and the first nut and the second nut can be locked with each other to position the sliding sleeve.

[0017] As an optional technical solution of the automatic unwinding device, a gasket is further provided between the sliding sleeve and the first nut.

[0018] As an optional technical solution for an automatic unwinding device, the bracket includes a supporting upright plate, a bottom plate, and side support plates arranged on both sides of the supporting upright plate. The supporting upright plate and the side support plates are both vertically arranged on the bottom plate, and the upper end portion of the side support plate is inclined toward the direction of the supporting upright plate.

[0019] As an optional technical solution for an automatic unwinding device, a mounting plate is fixedly provided at the upper end of the side support plate, the drive assembly is fixedly provided on the mounting plate, a flange is provided on the side of the support vertical plate away from the mounting plate, and at least one bearing is provided in the axial hole of the flange.

[0020] As an optional technical solution for an automatic unwinding device, the driving assembly includes a driving motor and a reducer connected to the output end of the driving motor, the output end of the reducer is fixed to the mounting plate, the rotating shaft passes through the bearing and the mounting plate and is rotatably connected to the reducer.

[0021] The beneficial effects of the utility model are:

[0022] The utility model provides an automatic unwinding device, which comprises: a frame, a driving component is fixedly arranged on one side of the frame, and the output end of the driving component is drivingly connected to a rotating shaft; a sliding sleeve is slidably arranged on the rotating shaft, and a material tray component is arranged on the sliding sleeve, and the material tray component comprises a loading sleeve and a left baffle plate and a right baffle plate located on both sides of the loading sleeve; a "U"-shaped baffle plate and a reverse thread nut threadedly connected to the right end of the sliding sleeve are arranged in sequence on the sliding sleeve on the right side of the material tray component; wherein, the shaft hole of the right baffle plate is smaller than the diameter of the "U"-shaped baffle plate and larger than the diameter of the reverse thread nut. Under the above structure, when the coil on the loading sleeve needs to be replaced, the reverse thread nut is loosened clockwise. Since the axial hole of the right baffle plate is larger than the diameter of the reverse thread nut, it is only necessary to loosen the reverse thread nut and the "U"-shaped baffle plate can be taken out upward. At this time, the right baffle plate can be taken out from the sliding sleeve, and then the coil can be removed or a new coil can be reinstalled. The automatic unwinding device has a simple structure and low manufacturing cost, which makes the replacement of coils more convenient and quick, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of the automatic unwinding device of the utility model embodiment;

[0024] Figure 2 This is a cross-sectional view of the automatic unwinding device according to an embodiment of the utility model;

[0025] Figure 3 It is a partial structural exploded diagram of the automatic unwinding device of the embodiment of the utility model;

[0026] Figure 4 It is a schematic diagram of the structure of the rotating shaft in the embodiment of the utility model.

[0027] In the figure:

[0028] 1. Frame; 101. Bottom plate; 102. Support plate; 103. Side support plate; 104. Mounting plate; 105. Flange;

[0029] 2. Driving assembly; 201. Driving motor; 202. Speed ​​reducer; 203. Rotating shaft; 204. Limiting groove;

[0030] 3. Sliding sleeve; 301. Limiting screw; 302. Keyway; 304. Spring; 305. Washer; 306. First nut; 307. Second nut;

[0031] 4. Material tray assembly; 401. Left baffle plate; 402. Loading shaft sleeve; 403. Right baffle plate;

[0032] 5. Limiting assembly; 501. "U"-shaped baffle; 502. Reverse thread nut. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0034] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] In the description of this embodiment, terms such as "up", "down", "left", and "right" and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present utility model.

[0037] In the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more than two. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0038] like Figure 1-4As shown, the utility model provides an automatic unwinding device, which includes a frame 1, a driving assembly 2 is fixedly arranged on one side of the frame 1, and the output end of the driving assembly 2 is drivingly connected to a rotating shaft 203, and the rotating shaft 203 passes through the frame 1 and extends to the other side of the frame 1; a sliding sleeve 3 is slidably arranged on the rotating shaft 203 along the X axis, and a limiting screw 301 is arranged on the sliding sleeve 3; a material tray assembly 4 is sleeved on the sliding sleeve 3, and the material tray assembly 4 includes a loading sleeve 4 02 and the left baffle plate 401 and the right baffle plate 403 located on both sides of the loading shaft sleeve 402, a keyway 302 is opened on the inner hole wall of the loading shaft sleeve 402, and the nut of the limiting screw 301 is arranged in the keyway 302; the limiting component 5 includes a "U"-shaped baffle plate 501 arranged on the right side of the material tray component 4 and a reverse thread nut 502 threadedly connected to the right end of the sliding shaft sleeve 3; wherein, the axial hole of the right baffle plate 403 is smaller than the diameter of the "U"-shaped baffle plate 501 and larger than the diameter of the reverse thread nut 502.

[0039] The utility model provides an automatic unwinding device. When it is necessary to replace the coil on the loading shaft sleeve 402, the reverse thread nut 502 is loosened clockwise. Since the axial hole of the right baffle plate 403 is larger than the diameter of the reverse thread nut 502, it is only necessary to loosen the reverse thread nut 502 and the "U"-shaped baffle plate 501 can be taken out upwards. At this time, the right baffle plate 403 can be taken out from the sliding shaft sleeve 3, and then the coil is removed or a new coil is reinstalled. The automatic unwinding device has a simple structure and low manufacturing cost, which makes the replacement of the coil more convenient and quick, thereby improving production efficiency. Secondly, since the sliding sleeve 3 and the rotating shaft 203 can move in the X-axis direction, and a spring 304 is provided on the shoulder of the rotating shaft 203 and the sliding sleeve 3, when it is necessary to adjust the X-axis position of the material tray assembly 4, it is only necessary to loosen the first nut 306 and the second nut 307, and then continue to rotate the position of the first nut 306 on the rotating shaft 203 to adjust the X-axis position of the material tray assembly 4. After adjusting to the appropriate position, the first nut 306 and the second nut 307 can be locked with each other. The spring 304 can apply a pressure toward the first nut 306 to the sliding sleeve 3 under its own elastic force, so that the sliding sleeve 3 and the material tray assembly 4 are fixed in the adjusted position. The arrangement of this structure increases the applicability of the automatic unwinding device.

[0040] Specifically, Figure 1As shown, the bracket includes a supporting upright plate 102, a bottom plate 101 and two side supporting plates 103 arranged on both sides of the supporting upright plate 102, the supporting upright plate 102 and the two side supporting plates 103 are respectively vertically arranged on the bottom plate 101, and the supporting upright plate 102, the bottom plate 101 and the two side supporting plates 103 are fixed to form a rectangular structure with one side open; the upper end parts of the two side supporting plates 103 are respectively inclined toward the supporting upright plate 102; a mounting plate 104 is fixedly provided at the inclined position of the upper ends of the two side supporting plates 103 by screws, the output end of the reducer 202 is fixedly installed on the mounting plate 104, the output end of the driving motor 201 and the input end at the bottom of the reducer 202 are fixedly connected, and the driving motor 201 is vertically arranged close to one side of the frame 1 at this time. This structure makes the entire unwinding device smaller in size and suitable for various working environments.

[0041] Furthermore, a flange 105 is installed on the side of the supporting plate 102 away from the mounting plate 104, and a plurality of bearings are arranged in the axial hole of the flange 105. In the present structure, two bearings are preferably arranged, and one end of the rotating shaft 203 is penetrated by the two bearings and is drivingly connected to the output end of the reducer 202. The arrangement of the two bearings enables the rotating shaft 203 to resist the centrifugal force brought by the unwinding device during the unwinding process, thereby making the automatic unwinding device more stable during operation.

[0042] In this embodiment, if Figures 2 to 4 As shown, a long strip-shaped limiting groove 204 is provided in the axial direction of the outer diameter of the rotating shaft 203, and a vertical threaded through hole is provided on the outer diameter of the sliding sleeve 3 toward its axial hole. The limiting screw 301 is sequentially penetrated through the threaded through holes and its end extends into the limiting groove 204 on the rotating shaft 203. The sliding sleeve 3 can move left and right on the length stroke of the limiting groove 204 of the rotating shaft 203, so as to adjust the position of the material tray assembly 4 on the rotating shaft 203 to adapt to different material discharge operations.

[0043] Specifically, Figure 2 and Figure 3As shown, the outer diameter of the sliding sleeve 3 is a stepped structure, that is, two shoulders are formed on the outer diameter of the sliding sleeve 3, and the shaft hole diameters of the left stop plate and the right stop plate 403 are both smaller than the diameter of the shoulder on the left side of the sliding sleeve 3. At the same time, the shaft hole diameter of the right stop plate 403 is smaller than the diameter of the "U"-shaped baffle 501 and larger than the outer diameter of the reverse thread nut 502. Therefore, the discharge assembly presses the "U"-shaped baffle 501 onto the right baffle plate 403 under the thrust when the reverse thread nut 502 is tightened. The coil on the loading shaft sleeve 402 can be stably rotated and discharged between the left baffle plate 401 and the right baffle plate 403. Since the axial hole of the right baffle plate 403 is larger than the diameter of the reverse thread nut 502, it is only necessary to loosen the reverse thread nut 502 and the "U"-shaped baffle plate 501 can be taken out upwards. At this time, the right baffle plate 403 can be taken out from the sliding shaft sleeve 3, and then the coil can be removed or a new coil can be reinstalled, making the replacement of the coil more convenient and quick, thereby improving production efficiency.

[0044] Furthermore, the inner thread of the reverse nut 502 is a reverse structure, and the thread on the right end of the sliding sleeve 3 connected to the reverse nut 502 is a reverse thread. Therefore, the locking direction of the reverse nut 502 and the sliding sleeve 3 is counterclockwise, so that when the rotating shaft 203 rotates clockwise to drive the material tray assembly 4 to discharge the material, the reverse nut 502 and the sliding sleeve 3 will not loosen due to the inertia and centrifugal force brought by the rotation of the rotating shaft 203.

[0045] In this embodiment, if Figure 2 and Figure 3 As shown, a spring 304 is sleeved on the rotating shaft 203 between the shoulder of the rotating shaft 203 and the left shoulder of the sliding sleeve 3, and a first nut 306 and a second nut 307 that are locked with each other are set at the end of the rotating shaft 203 extending to the right side of the counter-thread nut 502. When it is necessary to adjust the position of the material tray assembly 4 on the rotating shaft 203, it is only necessary to loosen the first nut 306 and the second nut 307, and then continue to rotate the position of the first nut 306 on the rotating shaft 203 to adjust the position of the material tray assembly 4 on the rotating shaft 203. After adjusting to a suitable position, the first nut 306 and the second nut 307 are locked with each other. The spring 304 can apply a pressure toward the first nut 306 to the sliding sleeve 3 under its own elastic force, so that the sliding sleeve 3 and the material tray assembly 4 are fixed at the adjusted position. The arrangement of this structure increases the applicability of the automatic unwinding device.

[0046] Further, such as Figure 3 As shown, an annular gasket 305 is sleeved on the rotating shaft 203 between the first nut 306 and the sliding sleeve 3 to prevent the first nut 306 from wearing the sliding sleeve 3 when the first nut 306 is rotated to adjust the position of the material tray assembly 4 on the rotating shaft 203.

[0047] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiments according to the technology of the utility model, which does not depart from the content of the technical solution of the utility model, belongs to the scope of the technical solution of the utility model.

Claims

1. An automatic unwinding device, characterized in that: include: A frame, one side of which is fixedly provided with a driving assembly, an output end of which is drivingly connected to a rotating shaft, and the rotating shaft passes through the frame and extends to the other side of the frame; A sliding sleeve is slidably arranged on the rotating shaft along the X axis, and a limiting screw is arranged on the sliding sleeve; A material tray assembly is sleeved on the sliding sleeve, the material tray assembly includes a loading sleeve and a left baffle plate and a right baffle plate located on both sides of the loading sleeve, a key slot is opened on the inner hole wall of the loading sleeve, and the nut of the limiting screw is arranged in the key slot; A limit assembly, comprising a "U"-shaped baffle plate arranged on the right side of the tray assembly and a reverse thread nut threadedly connected to the right end of the sliding sleeve; Wherein, the axial hole of the right baffle is smaller than the diameter of the "U"-shaped baffle and larger than the diameter of the reverse thread nut.

2. The automatic unwinding device according to claim 1, characterized in that: A limiting groove is provided in the outer diameter axis direction of the rotating shaft, and the end of the limiting screw is arranged in the limiting groove.

3. The automatic unwinding device according to claim 2, characterized in that: A spring is installed on the rotating shaft, one end of the spring abuts against the right side of the shoulder of the rotating shaft, and the other end of the spring abuts against the left side of the sliding sleeve.

4. The automatic unwinding device according to claim 3, characterized in that: A first nut and a second nut are threadedly connected on the rotating shaft located on the right side of the sliding sleeve. The first nut and the second nut can be locked with each other and position the sliding sleeve.

5. The automatic unwinding device according to claim 4, characterized in that: A gasket is also provided between the sliding sleeve and the first nut.

6. The automatic unwinding device according to claim 1, characterized in that: The frame includes a supporting upright plate, a bottom plate and side supporting plates arranged on both sides of the supporting upright plate. The supporting upright plate and the side supporting plates are both vertically arranged on the bottom plate, and the upper end portion of the side supporting plate is inclined toward the supporting upright plate.

7. The automatic unwinding device according to claim 6, characterized in that: A mounting plate is fixedly arranged at the upper end of the side support plate, the driving assembly is fixedly arranged on the mounting plate, a flange is arranged on the side of the support vertical plate away from the mounting plate, and at least one bearing is arranged in the axial hole of the flange.

8. The automatic unwinding device according to claim 7, characterized in that: The driving assembly includes a driving motor and a reducer connected to the output end of the driving motor. The output end of the reducer is fixed to the mounting plate. The rotating shaft passes through the bearing and the mounting plate and is rotatably connected to the reducer.

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