CN111532844A - Unwinding mechanism and automatic reel changing device - Google Patents
Unwinding mechanism and automatic reel changing device Download PDFInfo
- Publication number
- CN111532844A CN111532844A CN202010385594.8A CN202010385594A CN111532844A CN 111532844 A CN111532844 A CN 111532844A CN 202010385594 A CN202010385594 A CN 202010385594A CN 111532844 A CN111532844 A CN 111532844A
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- China
- Prior art keywords
- shaft
- unwinding
- rotating shaft
- driving
- material preparing
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H19/00—Changing the web roll
- B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
- B65H19/12—Lifting, transporting, or inserting the web roll; Removing empty core
- B65H19/123—Lifting, transporting, or inserting the web roll; Removing empty core with cantilever supporting arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H19/00—Changing the web roll
- B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
- B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H19/00—Changing the web roll
- B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
- B65H19/20—Cutting-off the expiring web
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
- B65H23/032—Controlling transverse register of web
- B65H23/0326—Controlling transverse register of web by moving the unwinding device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/18—Constructional details
- B65H75/24—Constructional details adjustable in configuration, e.g. expansible
- B65H75/242—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages
- B65H75/243—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages actuated by use of a fluid
Abstract
The invention relates to an unwinding mechanism and an automatic reel changing device. This unwinding mechanism includes: a pushing member; the rotating shaft can rotate around the axis of the rotating shaft and is movably arranged along the axial direction of the rotating shaft relative to the pushing piece; the unwinding shaft is coaxially arranged on the rotating shaft and synchronously rotates with the rotating shaft; the material preparing shaft is coaxially arranged on the rotating shaft and can rotate around the axis of the material preparing shaft relative to the rotating shaft; the driving assembly is used for driving the rotating shaft to rotate around the axis of the rotating shaft and driving the material preparing shaft to move along the axial direction of the rotating shaft relative to the pushing piece; the opposite ends of the material preparing shaft and the unwinding shaft can be mutually butted, so that the material coil sleeved on the material preparing shaft can be pushed to the unwinding shaft by the pushing piece in the process that the material preparing shaft moves along the axial direction of the material preparing shaft relative to the pushing piece. Therefore, two sets of unwinding mechanisms which are mutually standby are avoided being equipped in the prior art, the structure of the device is simplified, and the occupied space is reduced.
Description
Technical Field
The invention relates to the technical field of material roll unreeling, in particular to an unreeling mechanism and an automatic roll changing device.
Background
When a material roll needs to be processed, the material roll needs to be unreeled to an output material belt. For example, in the production process of lithium batteries, the cathode/anode sheets need to be unreeled to a reeling machine for reeling. When the material roll is completely unreeled, automatic roll changing is needed. Generally, the automatic roll changing device can cut off and separate the used material belt from the material roll, and simultaneously, the front end of the material belt of the standby material roll is connected with the tail end of the used material belt. To ensure the reliability of the connection, the leading end of the tape of the reserve roll is provided with an adhesive tape for adhering to the trailing end of the tape being used.
However, the conventional automatic roll changing device generally needs to be equipped with two sets of unwinding mechanisms which are mutually standby, that is, when one unwinding mechanism works normally, the other unwinding mechanism is standby, so that the automatic roll changing device has a complex structure and occupies a large space.
Disclosure of Invention
Therefore, it is necessary to provide an unwinding mechanism and an automatic rewinding device for overcoming the above-mentioned drawbacks, in order to solve the problems of the automatic rewinding device that the structure is complicated and the occupied space is large because two unwinding mechanisms which are mutually standby need to be provided.
An unwinding mechanism, comprising:
a pushing member;
the rotating shaft can rotate around the axis of the rotating shaft and is movably arranged along the axial direction of the rotating shaft relative to the pushing piece;
the unwinding shaft is coaxially arranged on the rotating shaft and synchronously rotates with the rotating shaft; and
the material preparing shaft is coaxially arranged on the rotating shaft and can rotate around the axis of the material preparing shaft relative to the rotating shaft; and
the driving assembly is used for driving the rotating shaft to rotate around the axis of the rotating shaft and driving the material preparing shaft to move relative to the pushing piece along the axial direction of the rotating shaft;
the opposite ends of the material preparing shaft and the unwinding shaft can be mutually butted, so that the material coil sleeved on the material preparing shaft can be pushed to the unwinding shaft by the pushing piece in the process that the material preparing shaft moves relative to the pushing piece along the axial direction of the material preparing shaft.
In one embodiment, the unwinding shaft is provided with at least two mounting positions for the package material roll arranged along the axial direction of the unwinding shaft, and the material preparing shaft is provided with at least one material preparing position for mounting the material roll arranged along the axial direction of the material preparing shaft;
wherein the number of the mounting positions on the unreeling shaft is at least one more than the number of the stock preparation positions on the stock preparation shaft.
In one embodiment, the unreeling shaft is movable relative to the rotating shaft along the self-axial direction;
the unreeling mechanism further comprises a movable driving piece, wherein the movable driving piece is connected to the rotating shaft and the unreeling shaft and used for driving the unreeling shaft to move relative to the rotating shaft along the axial direction of the unreeling shaft, so that the unreeling shaft and the end parts, facing to each other, of the material preparing shafts are mutually butted or separated.
In one embodiment, the movable driving element is mounted at one end of the rotating shaft, the unreeling shaft is a hollow shaft, a push plate is connected inside the unreeling shaft, the unreeling shaft is sleeved at one end of the rotating shaft where the movable driving element is mounted, and the driving end of the movable driving element is connected to the push plate.
In one embodiment, the movable drive member is a cylinder, and the rotating shaft has a central bore extending along its axis;
the unwinding mechanism further comprises an air pipe arranged in the central hole, one end of the air pipe is connected with an external air source, and the other end of the air pipe is connected with the movable driving piece.
In one embodiment, the preparation shaft is movably connected to the pushing piece along the axial direction of the preparation shaft;
the driving assembly comprises a moving seat, a first driving structure and a second driving structure, the moving seat is movably connected to the pushing part along the axial direction of the material preparing shaft and connected with the material preparing shaft, and the moving seat is positioned on one side of the pushing part, which is far away from the unreeling shaft; the first driving structure is connected with the moving seat and the pushing piece; the second driving structure is arranged on the movable seat and is in transmission connection with the rotating shaft.
In one embodiment, the first driving structure includes a screw rod, a screw nut and a material changing driving member, the screw rod is rotatably connected to the pushing member around its axis and is parallel to the material preparing shaft, the screw nut is threadedly connected to the screw rod and is connected to the moving seat, and the material changing driving member is connected to the pushing member and is in transmission connection with the screw rod.
In one embodiment, the unwinding shaft is provided with a tensioning assembly, and the tensioning assembly can be controllably expanded along the radial direction of the unwinding shaft to tension the material roll on the unwinding shaft.
In one embodiment, the outer circumferential surface of the unreeling shaft is provided with a mounting groove; the tight subassembly of bloating including set up in the tight piece and the gasbag of bloating of mounting groove, the gasbag is located the tight piece of bloating with between the mounting groove diapire, and with outside air supply intercommunication, work as the gasbag is aerifyd and can promote when expanding the tight piece of bloating is followed the tight piece of bloating is worn out radially of unreeling the mounting groove.
In one embodiment, the rotating shaft has a central hole extending along an axis thereof, one end of the central hole is communicated with an external air source, the rotating shaft 20 is radially provided with a first air passage communicated with the central hole, the unreeling shaft is radially provided with a second air passage communicated with the first air passage and the mounting groove, and an air tap of the air bag is communicated with the second air passage.
An automatic roll changing device comprises the roll releasing mechanism in any embodiment.
Above-mentioned unwinding mechanism and automatic roll change device, the cover is equipped with at least one reserve material book on the stock shaft, and the cover is equipped with a material book on the unwinding shaft. The driving assembly drives the rotating shaft to rotate, so that the unreeling shaft is driven to rotate to unreel. Because the material preparing shaft can rotate relative to the rotating shaft, the material preparing shaft does not rotate along with the rotating shaft, and the material preparing roll on the material preparing shaft is prevented from rotating.
When the material roll on the unwinding shaft is unwound and needs to be changed, the driving assembly stops driving the rotating shaft to rotate, the working material belt is cut off at the moment, the driving assembly drives the material preparation shaft to relatively abut against the pushing piece to move along the axis of the driving assembly, so that the rotating shaft and the unwinding shaft are driven to relatively abut against the pushing piece to move along the axial direction of the rotating shaft, and the standby material roll on the material preparation shaft is abutted against and pushed onto the unwinding shaft by the abutting piece. The driving component drives the material preparing shaft to move back to the initial position along the axis of the material preparing shaft relative to the pushing piece again, and then the starting end of the standby material roll on the unwinding shaft is connected with the cut working material belt. The driving assembly drives the rotating shaft to rotate, so that the unreeling shaft is driven to rotate to realize continuous unreeling.
Therefore, the unwinding shaft and the material preparing shaft which can be mutually butted are arranged on the rotating shaft, the standby material on the material preparing shaft is pushed to the unwinding shaft by the pushing piece to realize reel change, two sets of unwinding mechanisms which are mutually standby are arranged in the prior art, the structure of the device is simplified, and the occupied space is reduced.
Drawings
Fig. 1 is a cross-sectional view of an unwinding mechanism (with a driving assembly omitted) according to an embodiment of the present invention;
FIG. 2 is a front view of the unwinding mechanism shown in FIG. 1;
FIG. 3 is a top view of the unwinding mechanism shown in FIG. 1;
fig. 4 is a side view of an unwinding shaft of the unwinding mechanism shown in fig. 1.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Referring to fig. 1, fig. 2 and fig. 3, an unwinding mechanism according to an embodiment of the present invention includes a pushing element 10, a rotating shaft 20, an unwinding shaft 30, a material preparing shaft 40 and a driving assembly 50.
The rotating shaft 20 is rotatable about its own axis and is movably disposed along its own axis with respect to the urging member 10. The unwinding shaft 30 is coaxially disposed on the rotating shaft 20, and rotates synchronously with the rotating shaft 20, so that the unwinding shaft 30 can rotate along with the rotating shaft 20 to unwind. The supply shaft 40 is coaxially disposed on the rotary shaft 20 and is rotatable about its own axis with respect to the rotary shaft 20 so that the supply shaft 40 does not rotate with the rotary shaft 20 when the rotary shaft 20 rotates. The driving assembly 50 is used for driving the rotating shaft 20 to rotate around its own axis and driving the material preparing shaft 40 to move along its own axis relative to the pushing part 10.
The end parts of the material preparing shaft 40 and the unwinding shaft 30 facing each other can be butted against each other, so that the abutting part 10 can push the material roll sleeved on the material preparing shaft 40 onto the unwinding shaft 30 in the process that the material preparing shaft 40 moves relative to the abutting part 10 along the axial direction of the material preparing shaft 40.
In the unwinding mechanism, at least one standby material roll is sleeved on the standby material shaft 40, and a material roll is sleeved on the unwinding shaft 30. The driving assembly 50 drives the rotating shaft 20 to rotate, thereby driving the unwinding shaft 30 to rotate for unwinding. Since the supply reel 40 is rotatable with respect to the rotating shaft 20, the supply reel 40 does not rotate with the rotating shaft 20, and the supply roll on the supply reel 40 is prevented from rotating.
When the material roll on the unwinding shaft 30 is unwound and needs to be changed, the driving assembly 50 stops driving the rotating shaft 20 to rotate, at this time, the working material belt is cut off, the driving assembly 50 drives the material preparation shaft 40 to move along the axis of the driving assembly relative to the pushing member 10, so that the rotating shaft 20 and the unwinding shaft 30 are driven to move relative to the pushing member 10 along the axial direction of the rotating shaft 20 together, and the pushing member 10 pushes the spare material roll on the material preparation shaft 40 to the unwinding shaft 30. The driving assembly 50 drives the material preparing shaft 40 to move back to the initial position along its own axis with respect to the pushing member 10 (at this time, the rotating shaft 20 and the unwinding shaft 30 return to the initial position together with the material preparing shaft 40), and then the leading end of the material preparing roll on the unwinding shaft 30 is connected to the cut-off work tape. The driving assembly 50 drives the rotating shaft 20 to rotate, thereby driving the unwinding shaft 30 to rotate for further unwinding.
Therefore, the unwinding mechanism is provided with the unwinding shaft 30 and the material preparing shaft 40 which can be butted with each other on the rotating shaft 20, and the material preparing roll on the material preparing shaft 40 is pushed to the unwinding shaft 30 by the pushing part 10 to realize roll changing, so that two sets of unwinding mechanisms which are mutually standby are avoided in the prior art, the structure of the device is simplified, and the occupied space is reduced.
It can be understood that, during the roll change, the pushing member 10 pushes the stock roll on the stock shaft 40 to the unwinding shaft 30, and at the same time, the stock roll pushes the empty roll (i.e. the roll that is completely unwound) on the unwinding shaft 30 to move along the unwinding shaft 30 and be replaced by the stock roll. After the roll change is completed, the driving assembly 50 drives the rotating shaft 20 to rotate to drive the unwinding shaft 30 to rotate, and the reserve roll and the empty roll on the unwinding shaft 30 rotate together with the unwinding shaft 30. Because the empty material roll has small mass (i.e. the inertia moment is small), the influence on the rotation of the unwinding shaft 30 is small, and the standby material roll on the unwinding shaft 30 can be normally unwound.
It should be further noted that the driving assembly 50 drives the stock shaft 40 to move along its own axis relative to the pushing member 10, so that on one hand, the stock roll on the stock shaft 40 can be pushed onto the unwinding shaft 30, thereby realizing roll change; on the other hand, the driving assembly 50 can also be used for driving the material preparing shaft 40 to move along the axial direction thereof, so as to drive the unwinding shaft 30 to move along the axial direction thereof, and further realize deviation correction (i.e. a deviation correction function) on the material belt unwound and output by the unwinding shaft 30. That is to say, the drive assembly 50 is utilized to drive the stock preparing shaft 40 to move along the axis, so that two functions of roll changing and deviation rectifying can be realized, the equipment structure is simplified, and the space saving and the cost reduction are facilitated.
In an embodiment of the invention, the unwinding shaft 30 has at least two mounting locations for the set roll arranged along its axial direction. The stock reel 40 has at least one stock level for a set roll (i.e., a stock roll) running in its axial direction. And, the number of mounting positions on the unreeling shaft 30 is at least one more than the number of stock positions on the stock shaft 40. Thus, before the unwinding mechanism starts unwinding, one reel is sleeved on the unwinding shaft 30 at a mounting position closest to the stock preparation shaft 40, and one stock is sleeved on each stock preparation position on the stock preparation shaft 40. When the reel on the unwinding shaft 30 needs to be changed after being unwound, the pushing element 10 pushes all the reserve rolls on the reserve roll 40 to the unwinding shaft 30, so that one reserve roll closest to the unwinding shaft 30 moves to a mounting position of the unwinding shaft 30 closest to the reserve roll 40, and the empty roll on the unwinding shaft 30 is pushed to an adjacent mounting position by the reserve roll. The above steps are repeated in a circulating manner until all the standby material rolls on the standby material shaft 40 are pushed to the unwinding shaft 30 and the unwinding is completed. Since the number of mounting positions on the unwinding shaft 30 is at least one more than the number of stock positions on the stock preparation shaft 40, it is ensured that the unwinding shaft 30 can accommodate all stock rolls on the lower stock preparation shaft 40.
Referring to fig. 1 and 4, in one embodiment of the present invention, the unwinding shaft 30 is provided with an expansion assembly 32, and the expansion assembly 32 is controllably expanded along a radial direction of the unwinding shaft 30 to expand the material roll on the unwinding shaft 30, i.e., to fix the material roll relative to the unwinding shaft 30. In this manner, the expansion assembly 32 can be used to expand or release the roll on the unwind shaft 30. When the material needs to be unreeled, the expansion assembly 32 expands the material roll on the unreeling shaft 30, so that the material roll rotates synchronously along with the unreeling shaft 30, and the unreeling is realized. When a roll change is required, the tensioning assembly 32 releases the roll so that the stock roll pushes the empty roll on the unwinding shaft 30 to move away from the stock shaft 40 when the pushing member 10 pushes the stock roll, so that the stock roll slides onto the unwinding shaft 30.
In the embodiment, the outer circumferential surface of the unwinding shaft 30 is provided with a mounting groove 31. The expansion assembly 32 includes an expansion block 321 and an air bag 322 both disposed in the mounting groove 31. The air bag 322 is located between the expansion block 321 and the bottom wall of the mounting groove 31 and is communicated with an external air source, so that the air bag 322 can be inflated or deflated by the external air source. When the air bag 322 is inflated and expanded, the expansion block 321 can be pushed to penetrate out of the mounting groove 31 along the radial direction of the unwinding shaft 30, so as to abut against the inner wall of the material roll, and further expand the material roll. When the material roll is not required to be inflated, the air bag 322 is deflated to be contracted, so that the inflating block 321 is retracted into the mounting groove 31 in the radial direction of the unwinding shaft 30, thereby releasing the material roll so that the material roll can slide along the unwinding shaft 30.
In particular embodiments, the rotating shaft 20 has a central bore 21 extending along its axis. One end of the central hole 21 is communicated with an external air source. The rotating shaft 20 is provided with a first air passage communicated with the central hole 21 along the radial direction, the unreeling shaft 30 is provided with a second air passage communicated with the first air passage and the mounting groove 31 along the radial direction, and an air tap of the air bag 322 is communicated with the second air passage.
Further, the mounting groove 31 extends along the longitudinal axial direction of the unwinding shaft 30, and the expansion block 321 also extends along the longitudinal axial direction of the unwinding shaft 30, thereby being beneficial to ensure that each roll on the unwinding shaft 30 is simultaneously expanded or released. Preferably, the length of the mounting groove 31 and the expansion block 321 is substantially equal to the length of the unreeling shaft 30.
Further, the outer peripheral surface of the unreeling shaft 30 is provided with a plurality of mounting grooves 31, the mounting grooves 31 are arranged at intervals along the circumferential direction of the unreeling shaft 30, and each mounting groove 31 is provided with an expansion assembly 32. So, utilize a plurality of tight subassemblies 32 that expand simultaneously to expand to roll up the material, ensure that the material is rolled up and is expanded tightly stably, be favorable to improving unreeling quality.
In an embodiment, two sidewalls at the opening of the mounting groove 31 protrude inward into the mounting groove 31 to form a blocking portion 311. The expansion block 321 comprises a limiting part and an expansion part connected to the limiting part, the limiting part is positioned in the mounting groove 31, and in the process that the expansion block 321 moves along the radial direction of the unwinding shaft 30 under the pushing of the airbag 322, the expansion part can extend out of the mounting groove 31 to abut against the inner wall of the material roll, so that the material roll is expanded; and the limiting part can abut against the stopping part 311 to prevent the expansion block 321 from continuously extending out of the mounting groove 31 and separating from the unreeling shaft 30.
In the embodiment of the present invention, the unreeling shaft 30 is movable in its own axis direction with respect to the rotating shaft 20. The unwinding mechanism further comprises a movable driving member 34, wherein the movable driving member 34 is connected to the rotating shaft 20 and the unwinding shaft 30 and is used for driving the unwinding shaft 30 to move along the axial direction of the unwinding shaft 30 relative to the rotating shaft 20, so that the ends of the unwinding shaft 30 and the preparation shaft 40 facing each other are butted with each other or separated from each other. In this way, when the unwinding is required, the movable driving member 34 drives the unwinding shaft 30 to move axially along itself and away from the standby shaft 40, so that the ends of the unwinding shaft 30 and the standby shaft 40 facing each other are separated, and the standby shaft 40 is prevented from influencing the rotation of the unwinding shaft 30 during the unwinding. When a reel change is required, the moving drive 34 drives the unwinding shaft 30 to move axially along itself close to the standby shaft 40, so that the unwinding shaft 30 and the standby shaft 40 are butted against each other at the ends facing each other, so as to push the standby reel on the standby shaft 40 against the unwinding shaft 30.
In an embodiment, the unwinding shaft 30 includes a reel changing position and an unwinding position during its axial movement relative to the rotating shaft 20. When the unwinding shaft 30 is in the reel change position, the ends of the unwinding shaft 30 and the stock preparation shaft 40 facing each other abut against each other so as to push the stock roll on the stock preparation shaft 40 against the unwinding shaft 30. When the unwinding shaft 30 is located at the unwinding position, the ends of the unwinding shaft 30 and the material preparation shaft 40 facing each other are separated from each other, so that the material preparation shaft 40 is prevented from influencing the rotation of the unwinding shaft 30 during unwinding.
In particular, in the embodiment, the movable driving member 34 is installed at one end of the rotating shaft 20. The unreeling shaft 30 is a hollow shaft, and a push plate 33 is fixedly connected to the interior thereof. The unreeling shaft 30 is sleeved on one end of the rotating shaft 20, on which the movable driving member 34 is mounted, so that the movable driving member 34 is positioned in the unreeling shaft 30, and the driving end of the movable driving member 34 is conveniently connected to the push plate 33. In this way, the driving end of the movable driving member 34 drives the push plate 33 to move along the axial direction of the unreeling shaft 30, so that the unreeling shaft 30 moves synchronously with the push plate 33.
Alternatively, the unreeling shaft 30 and the rotating shaft 20 can be connected by a key, so that the unreeling shaft 30 and the rotating shaft 20 can rotate synchronously, and the unreeling shaft 30 can move axially relative to the rotating shaft 20. For example, a key groove extending lengthwise in the axial direction of the rotating shaft 20 is formed between the unwinding shaft 30 and the rotating shaft 20, and the key is slidably disposed in the key groove along the lengthwise extending direction of the key groove.
Alternatively, the movable drive 34 may be a pneumatic cylinder. Further, the unwinding mechanism further comprises an air tube disposed in the central hole 21 of the rotating shaft 20, one end of the air tube is connected to an external air source, and the other end of the air tube is connected to the movable driving member 34, that is, the external air source is connected to the movable driving member 34 through the air tube. More specifically, the moving drive 34 is a single-acting cylinder.
Referring to fig. 1, fig. 2 and fig. 3, in the embodiment of the present invention, the stock shaft 40 is movably connected to the pushing element 10 along its own axial direction. The driving assembly 50 includes a movable base 51, a first driving structure 53 and a second driving structure 55. The movable seat 51 is movably connected to the pushing element 10 along the axial direction of the stock shaft 40 and is fixedly connected to the stock shaft 40, and the movable seat 51 is located on a side of the pushing element 10 away from the unreeling shaft 30. The first driving structure 53 is connected to the moving seat 51 and the abutting member 10, and is configured to drive the moving seat 51 to move along the axial direction of the material preparing shaft 40 relative to the abutting member 10, so as to drive the material preparing shaft 40, the rotating shaft 20 and the unwinding shaft 30 to move synchronously along the axial direction of the material preparing shaft 40, thereby facilitating the roll change. The second driving structure 55 is disposed on the movable base 51, and is connected to the rotating shaft 20 in a transmission manner, so as to drive the rotating shaft 20 to rotate around its own axis, and further drive the unwinding shaft 30 to rotate around its own axis, so as to unwind.
In one embodiment, the first driving structure 53 includes a screw 532, a screw nut 533 and a material-changing driving member 531. The screw rod 532 is rotatably connected to the pushing member 10 around its axis and is parallel to the material preparing shaft 40. The screw nut 533 is screwed to the screw 532 and is fixedly connected to the movable base 51. The material changing driving member 531 is connected to the pushing member 10 and is in transmission connection with the lead screw 532 to drive the lead screw 532 to rotate around its own axis. Thus, when the coil needs to be replaced, the material changing driving member 531 drives the screw rod 532 to rotate around the axis thereof, so that the moving seat 51 moves along the axial direction of the material preparing shaft 40 along with the screw rod nut 533, and further drives the material preparing shaft 40, the rotating shaft 20 and the unwinding shaft 30 to move along with the axial direction of the material preparing shaft 40, so that the pushing member 10 pushes the standby coil material on the material preparing shaft 40 to the unwinding shaft 30, and the coil replacement is realized. Alternatively, the reload drive 531 may be a motor.
Further, the movable base 51 may be connected to the pushing member 10 through a guide rod 511. That is, one end of the guide rod 511 is fixedly connected to the pushing element 10, and the movable base 51 is slidably connected to the guide rod 511. Alternatively, the refueling driving member 531 may be mounted on a side of the guide bar 511 facing away from the push piece 10.
In an embodiment, the second driving structure 55 includes a rotating driving member 551 disposed on the moving base 51, and the rotating driving member 551 is in transmission connection with the rotating shaft 20 to drive the rotating shaft 20 to rotate around its axis, so as to drive the unwinding shaft 30 to rotate around its axis for unwinding.
Further, in one embodiment, the rotary driving member 551 may be in transmission connection with the rotary shaft 20 using a gear transmission structure. That is, the output shaft of the rotary driving member 551 is provided with a driving gear 552, the rotary shaft 20 is provided with a driven gear 553, and the driving gear 552 and the driven gear 553 are engaged with each other, so that the rotary driving member 551 drives the driving gear 552 to rotate, thereby driving the driven pulley 553, and further driving the rotary shaft 20 to rotate. Of course, the rotary driving member 551 is not limited to be in transmission connection with the rotary shaft 20 by a gear transmission structure, and other transmission structures, such as a belt transmission structure, may be adopted, and is not limited herein.
In the embodiment, the material preparing shaft 40 is a hollow shaft and is sleeved outside the rotating shaft 20. One end of the rotating shaft 20 penetrates through the material preparing shaft 40 and is in transmission connection with a rotating driving member 551. The other end of the rotating shaft 20 passes through the preparing shaft 40 and is used for installing the unreeling shaft 30. Alternatively, the material preparing shaft 40 may be sleeved outside the rotating shaft 20 through a bearing, so that the material preparing shaft 40 can rotate relative to the rotating shaft 20, that is, when the rotating shaft 20 rotates, the material preparing shaft 40 does not rotate along with the rotating shaft 20.
In one embodiment, the pushing member 10 may be a mounting plate. The preparation shaft 40 may be mounted to the mounting plate by means of a sliding sleeve, so that the preparation shaft 40 is axially movably connected to the mounting plate in its own axis. That is to say, the first driving structure 53 drives the material preparing shaft 40, the rotating shaft 20 and the unwinding shaft 30 to move axially, so that the mounting plate and the material preparing shaft 40 move relatively, and then the mounting plate is used for pushing the material preparing roll on the material preparing shaft 40 to move onto the unwinding shaft 30 to change the roll, so that no additional part for pushing the material preparing roll is needed, the structure of the device is further simplified, and the occupied space is reduced.
Of course, in other embodiments, the material preparing shaft 40 may be fixedly connected to the mounting plate, and an urging member is additionally provided, and the first driving structure 53 is drivingly connected to the urging member, so as to drive the urging member to move along the axial direction of the material preparing shaft 40, so as to facilitate the urging of the material preparing roll on the material preparing shaft 40 onto the unwinding shaft 30. That is, in the present embodiment, the rotating shaft 20, the stock shaft 40 and the mounting plate do not move in the axial direction during the material pushing process, but the first driving structure 53 drives the pushing member to move, so as to realize the relative movement between the pushing member and the stock shaft 40.
Based on the unwinding mechanism, the invention further provides an automatic reel changing device, and the automatic reel changing device comprises the unwinding mechanism in any one of the embodiments.
In an embodiment, the automatic roll changing device further includes a cutting mechanism and a splicing mechanism, the cutting mechanism is used for cutting off the material strip which is unwound and output from the unwinding shaft 30, and the splicing mechanism is used for bonding the cut material strip with the starting end of the standby material roll which is changed to the unwinding shaft 30. It should be noted that both the cutting mechanism and the belt splicing mechanism can adopt the mature prior art, and therefore, the details are not described herein.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The utility model provides an unwinding mechanism which characterized in that includes:
a pushing member;
the rotating shaft can rotate around the axis of the rotating shaft and is movably arranged along the axial direction of the rotating shaft relative to the pushing piece;
the unwinding shaft is coaxially arranged on the rotating shaft and synchronously rotates with the rotating shaft; and
the material preparing shaft is coaxially arranged on the rotating shaft and can rotate around the axis of the material preparing shaft relative to the rotating shaft; and
the driving assembly is used for driving the rotating shaft to rotate around the axis of the rotating shaft and driving the material preparing shaft to move relative to the pushing piece along the axial direction of the rotating shaft;
the opposite ends of the material preparing shaft and the unwinding shaft can be mutually butted, so that the material coil sleeved on the material preparing shaft can be pushed to the unwinding shaft by the pushing piece in the process that the material preparing shaft moves relative to the pushing piece along the axial direction of the material preparing shaft.
2. Unwinding mechanism according to claim 1, characterised in that the unwinding shaft has at least two mounting places for nested rolls running in its axial direction, and the preparation shaft has at least one preparation place for mounted rolls running in its axial direction;
wherein the number of the mounting positions on the unreeling shaft is at least one more than the number of the stock preparation positions on the stock preparation shaft.
3. The unwinding mechanism of claim 1, wherein the unwinding shaft is axially movable with respect to the rotation shaft;
the unreeling mechanism further comprises a movable driving piece, wherein the movable driving piece is connected to the rotating shaft and the unreeling shaft and used for driving the unreeling shaft to move relative to the rotating shaft along the axial direction of the unreeling shaft, so that the unreeling shaft and the end parts, facing to each other, of the material preparing shafts are mutually butted or separated.
4. The unwinding mechanism as claimed in claim 3, wherein the movable driving member is mounted at one end of the rotating shaft, the unwinding shaft is a hollow shaft, and is internally connected with a push plate, the unwinding shaft is sleeved at one end of the rotating shaft where the movable driving member is mounted, and a driving end of the movable driving member is connected to the push plate.
5. The unwinding mechanism of claim 4, wherein the movable driving member is a cylinder, and the rotary shaft has a central hole extending along an axis thereof;
the unwinding mechanism further comprises an air pipe arranged in the central hole, one end of the air pipe is connected with an external air source, and the other end of the air pipe is connected with the movable driving piece.
6. The unwinding mechanism as claimed in claim 1, wherein the standby shaft is movably connected to the pushing member along its axial direction;
the driving assembly comprises a moving seat, a first driving structure and a second driving structure, the moving seat is movably connected to the pushing part along the axial direction of the material preparing shaft and connected with the material preparing shaft, and the moving seat is positioned on one side of the pushing part, which is far away from the unreeling shaft; the first driving structure is connected with the moving seat and the pushing piece; the second driving structure is arranged on the movable seat and is in transmission connection with the rotating shaft.
7. The unwinding mechanism as claimed in claim 1, wherein an expansion assembly is provided on the unwinding shaft, the expansion assembly being controllably expandable in a radial direction of the unwinding shaft to expand the material roll on the unwinding shaft.
8. The unwinding mechanism as claimed in claim 7, wherein the unwinding shaft has an installation groove formed on an outer circumferential surface thereof; the tight subassembly of bloating including set up in the tight piece and the gasbag of bloating of mounting groove, the gasbag is located the tight piece of bloating with between the mounting groove diapire, and with outside air supply intercommunication, work as the gasbag is aerifyd and can promote when expanding the tight piece of bloating is followed the tight piece of bloating is worn out radially of unreeling the axle the mounting groove.
9. The unwinding mechanism as claimed in claim 8, wherein the rotating shaft has a central hole extending along an axis thereof, one end of the central hole is connected to the external air source, the rotating shaft is radially provided with a first air passage connected to the central hole, the unwinding shaft is radially provided with a second air passage connected to the first air passage and the mounting groove, and an air tap of the air bag is connected to the second air passage.
10. An automatic reel changer comprising the reel release mechanism according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010385594.8A CN111532844A (en) | 2020-05-09 | 2020-05-09 | Unwinding mechanism and automatic reel changing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010385594.8A CN111532844A (en) | 2020-05-09 | 2020-05-09 | Unwinding mechanism and automatic reel changing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111532844A true CN111532844A (en) | 2020-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010385594.8A Pending CN111532844A (en) | 2020-05-09 | 2020-05-09 | Unwinding mechanism and automatic reel changing device |
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| Country | Link |
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| CN (1) | CN111532844A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112520098A (en) * | 2020-12-02 | 2021-03-19 | 吴彬彬 | Packaging equipment applied to logistics transportation piece bundling |
| CN114314169A (en) * | 2021-12-07 | 2022-04-12 | 江西聚润纺织科技有限公司 | Winding head mechanism for intelligently manufacturing fiber textile |
| CN114852652A (en) * | 2022-05-16 | 2022-08-05 | 杭州数创自动化控制技术有限公司 | Material coil falling machine and method |
| CN115091167A (en) * | 2022-07-12 | 2022-09-23 | 一汽解放汽车有限公司 | Bearing installation device and gearbox production device |
| CN116654683A (en) * | 2023-07-25 | 2023-08-29 | 江苏时代新能源科技有限公司 | Tongs and conveyor |
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2020
- 2020-05-09 CN CN202010385594.8A patent/CN111532844A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112520098A (en) * | 2020-12-02 | 2021-03-19 | 吴彬彬 | Packaging equipment applied to logistics transportation piece bundling |
| CN114314169A (en) * | 2021-12-07 | 2022-04-12 | 江西聚润纺织科技有限公司 | Winding head mechanism for intelligently manufacturing fiber textile |
| CN114314169B (en) * | 2021-12-07 | 2023-07-25 | 江西聚润纺织科技有限公司 | Intelligent manufacturing fiber spinning winding head mechanism |
| CN114852652A (en) * | 2022-05-16 | 2022-08-05 | 杭州数创自动化控制技术有限公司 | Material coil falling machine and method |
| CN114852652B (en) * | 2022-05-16 | 2023-10-13 | 杭州数创自动化控制技术有限公司 | Tilting machine and tilting method for material rolls |
| CN115091167A (en) * | 2022-07-12 | 2022-09-23 | 一汽解放汽车有限公司 | Bearing installation device and gearbox production device |
| CN115091167B (en) * | 2022-07-12 | 2024-03-19 | 一汽解放汽车有限公司 | Bearing mounting device and gearbox production device |
| CN116654683A (en) * | 2023-07-25 | 2023-08-29 | 江苏时代新能源科技有限公司 | Tongs and conveyor |
| CN116654683B (en) * | 2023-07-25 | 2023-11-17 | 江苏时代新能源科技有限公司 | Tongs and conveyor |
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