A material tape transition buffer device

Abstract

The application provides a material belt transition buffer device, which comprises a rotating wheel assembly, a transmission plate assembly and a winding core assembly; the rotating wheel assembly is provided with multiple groups and forms a feeding guide mechanism, an outer ring guide mechanism and an inner ring guide mechanism respectively; the outer ring guide mechanism and the inner ring guide mechanism are opposite in rotation direction; the transmission plate assembly comprises a fixed bottom plate, side stop plates, a support bottom plate and a top plate; the side stop plates are provided with multiple groups and are vertically arranged on the fixed bottom plate; the support bottom plate is connected with the multiple side stop plates simultaneously and is provided with an inner ring hole; the feeding guide mechanism, the outer ring guide mechanism and the inner ring guide mechanism are arranged on the fixed bottom plate respectively and are connected through the top plate; the inner ring guide mechanism and the winding core guide mechanism are arranged on the fixed bottom plate and are located in the inner ring hole respectively; the material belt can be conveyed to the support bottom plate through the feeding guide mechanism and is slid on the support bottom plate through the outer ring guide mechanism to form a winding shape; the inner end of the material belt is transmitted out after winding around the winding core assembly and forms a second winding through the inner ring guide mechanism.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel strip finishing rolling, in particular to a material strip transition buffering device. BACKGROUND

[0002] The cold rolling of steel strip material is mainly to uncoil the hot-rolled steel strip in coils purchased from a steel plant into a finishing rolling equipment to form a steel strip with higher surface quality and dimensional accuracy. Since the finishing rolling of strip material is usually carried out on a high-speed wire rod production line, the hot-rolled material coil produced by the steel plant is quickly exhausted, and then it is necessary to avoid frequent shutdown and feeding, and the intermittent time is long, which greatly affects the production efficiency. Therefore, the existing cold rolling workshop usually uncoils and welds the hot-rolled steel strip to form a continuous super-long wire material, so as to adapt to the high-speed wire production demand of the finishing rolling equipment or the pre-finishing rolling equipment. However, continuous high-speed production has a very high requirement on the uncoiling and welding efficiency of the upstream, and the workers have a heavy burden, which is easy to cause danger or welding quality problems, and any fault of the upstream and downstream will still cause the shutdown of the whole line, which poses a great hidden danger to the production efficiency. SUMMARY

[0003] In view of the deficiencies of the prior art, the present application provides a material strip transition buffering device to solve the technical problem of close correlation between the upstream and downstream of the finishing rolling mentioned in the background art, and any fault easily causes the shutdown of the whole line.

[0004] To solve the technical problem, the technical scheme adopted by the present application is as follows:

[0005] A material strip transition buffering device, comprising a rotating wheel assembly, a transmission plate assembly and a winding core assembly;

[0006] The rotating wheel assembly is rotatable and is provided with multiple groups, and forms a material feeding guide mechanism, an outer ring guide mechanism and an inner ring guide mechanism, respectively. The rotation directions of the outer ring guide mechanism and the inner ring guide mechanism are opposite.

[0007] The transmission plate assembly comprises a fixed bottom plate, side stop plates, a support bottom plate and a top plate. The side stop plates are provided in multiple numbers and are vertically arranged on the fixed bottom plate. The support bottom plate is connected with multiple side stop plates at the same time, and the support bottom plate is provided with an inner ring hole. The material feeding guide mechanism, the outer ring guide mechanism and the inner ring guide mechanism are arranged on the fixed bottom plate and are connected through the top plate. The inner ring guide mechanism and the winding core guide mechanism are arranged on the fixed bottom plate and are located in the inner ring hole together with the winding core assembly.

[0008] The material strip can be conveyed to the support bottom plate through the material feeding guide mechanism, and is slid on the support bottom plate through the outer ring guide mechanism to form a winding shape. The inner end of the material strip can be transmitted out after winding around the winding core assembly, and forms a second winding through the inner ring guide mechanism.

[0009] Further, the rotating wheel assembly comprises a rotating wheel motor, a rotating wheel shaft and a rotating wheel body; the rotating wheel shaft is coaxially arranged on the output shaft of the rotating wheel motor, and the rotating wheel body is coaxially and fixedly arranged on the rotating wheel shaft.

[0010] Further, a guide plate assembly, a transmission mechanism and a driving assembly are further arranged; the guide plate assembly is arranged on the support bottom plate in a liftable manner, one side of the guide plate assembly can abut against the inner end of the material belt, and one end of the guide plate assembly faces the winding core assembly; the transmission mechanism and the driving assembly are arranged on the fixed bottom plate respectively, and the driving assembly can drive the guide plate assembly to lift or lower through the transmission mechanism.

[0011] Further, a releasing assembly is further arranged on the fixed bottom plate, and when the rotating wheel motor of the inner ring guide mechanism close to the transmission mechanism rotates, the guide plate assembly can be lowered through the releasing assembly.

[0012] Further, the transmission mechanism comprises a fixed plate, a driving gear ring, a connecting assembly, a transmission assembly, a ratchet wheel and a pawl assembly; the fixed plate is arranged on the fixed bottom plate, the driving gear ring, the connecting assembly and the transmission assembly are coaxially and rotatably arranged on the fixed plate respectively, the ratchet wheel is coaxially and fixedly arranged on the transmission assembly, and the pawl assembly is rotatably arranged on the fixed bottom plate; the driving assembly can drive the driving gear ring to rotate, the rotation of the driving gear ring can make the connecting assembly rotate forward and be inserted into the transmission assembly, thereby driving the transmission assembly to rotate, the rotation of the transmission assembly can drive the guide plate assembly to lift, the pawl assembly can limit the reverse rotation of the transmission assembly through the ratchet wheel, when the rotating wheel motor of the inner ring guide mechanism close to the transmission mechanism rotates, the pawl assembly can be away from the ratchet wheel through the releasing assembly, the guide plate assembly slides downward under the gravity, the transmission assembly reverses, and the connecting assembly is away from the transmission assembly.

[0013] Further, the transmission assembly comprises a rotating shaft and a transmission gear; the rotating shaft is rotatably arranged on the fixed plate, the transmission gear and the ratchet wheel are coaxially and fixedly arranged on the rotating shaft respectively, and the transmission gear can drive the guide plate assembly to lift or lower; a limiting groove is arranged on the rotating shaft, and the connecting assembly can be inserted into the limiting groove to drive the rotating shaft to rotate.

[0014] Further, the connecting assembly comprises a transmission ring, an insertion block and an elastic rope; the transmission ring is rotatably arranged on the fixed plate, the insertion block is slidably arranged on the transmission ring and connected with the transmission ring through the elastic rope; the top end of the insertion block is provided with an inclined surface, the inner side of the driving gear ring is provided with a pushing groove, and rotation of the pushing groove can extrude the inclined surface of the insertion block, so that the insertion block is inserted into the limiting groove and abuts against the insertion block.

[0015] Further, the releasing assembly comprises a connecting rope and a pushing block; the pushing block is arranged on the output shaft of the runner motor of the inner ring guide mechanism close to the transmission mechanism, one end of the connecting rope is connected with the pawl assembly, and the other end is connected with the fixed bottom plate through the pushing block, and rotation of the pushing block can tighten the connecting rope, so that the pawl assembly is away from the ratchet wheel.

[0016] Further, the pawl assembly comprises a pawl body, a connecting rod and a torsion spring; the connecting rod is arranged on the fixed bottom plate, the pawl body is rotatably arranged on the connecting rod and connected with the connecting rod through the torsion spring, and the connecting rope is connected with the pawl body.

[0017] Further, the guide plate assembly comprises a guide plate body, a rack and a telescopic column; the telescopic column is arranged on the fixed bottom plate, the guide plate body is slidably arranged on the support bottom plate, and the rack is arranged on the guide plate body and engaged with the transmission gear.

[0018] Compared with the prior art, the progress of the present application lies in that:

[0019] The main structure of the device is an inner-outer double-layer turntable device formed by the outer ring guide mechanism and the inner ring guide mechanism, the rotation directions of which are opposite, the material belt enters the support bottom plate through the feeding guide mechanism and is wound into a roll under the driving of the outer ring guide mechanism, the material head on the inner side is led out through the roll core assembly and is wound outward into a second roll around the reversely rotating inner ring guide mechanism, and finally the material head is led out from the roll core assembly of the second roll and enters the subsequent finishing device through the guide. The rolled device can store a large amount of steel belt material in the form of a large roll, realizing seamless connection between the front and rear processes.

[0020] The material belt transition and storage device enables the steel belt after unwinding and welding to be transitioned through the storage device and then enter the subsequent finishing equipment. Whether problems occur in the unwinding and welding processes or problems occur in the subsequent finishing process, the processes will not affect each other, avoiding the risk of complete production stop due to a mistake, and reducing the burden on upstream workers and improving the safety and quality of production. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present application, the drawings required to be used in the specific embodiments will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn according to the actual proportion.

[0022] Figure 1 A schematic view of a material tape transition buffer device provided for an embodiment of the present application is shown in the figure.

[0023] Figure 2 A schematic view of a material tape transition buffer device provided for an embodiment of the present application is shown in the figure. Figure 1 A schematic view of a material tape transition buffer device provided for an embodiment of the present application is shown in the figure.

[0024] Figure 3 A schematic view of a material tape transition buffer device provided for an embodiment of the present application is shown in the figure. Figure 2 A schematic view of a material tape transition buffer device provided for an embodiment of the present application is shown in the figure.

[0025] Figure 4 A schematic view of a material tape transition buffer device provided for an embodiment of the present application is shown in the figure. Figure 2 A schematic view of a material tape transition buffer device provided for an embodiment of the present application is shown in the figure.

[0026] Reference signs:

[0027] Rotary wheel assembly 1, rotary wheel motor 11, rotary wheel shaft 12, rotary wheel body 13,

[0028] Transmission plate assembly 2, fixed bottom plate 21, side baffle 22, support bottom plate 23, top plate 24,

[0029] Feeding guide mechanism 31, outer ring guide mechanism 32, inner ring guide mechanism 33, core assembly 34,

[0030] Guide plate assembly 4, guide plate body 41, rack 42, telescopic column 43,

[0031] Transmission mechanism 5, fixed plate 51, drive gear ring 52, pushing groove 521, connecting assembly 53, transmission ring 531, insertion block 532, elastic rope 533, transmission assembly 54, rotating shaft 541, limiting groove 5411, transmission gear 542, ratchet 55, pawl assembly 56, pawl body 561, connecting rod 562, torsional spring 563,

[0032] Drive assembly 6, drive motor 61, drive gear 62,

[0033] Release assembly 7, connecting rope 71, pushing block 72,

[0034] Material tape 8. Specific embodiments

[0035] The embodiments of the technical solutions of the present application will be described in detail below in combination with the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0036] Please see Figures 1-4 The embodiment provides a material belt 8 transition buffer device, which comprises a rotating wheel assembly 1, a transmission plate assembly 2 and a winding core assembly 34.

[0037] The rotating wheel assembly 1 is rotatable and comprises multiple groups, and forms a feeding guide mechanism 31, an outer ring guide mechanism 32 and an inner ring guide mechanism 33 respectively.

[0038] The transmission plate assembly 2 comprises a fixed bottom plate 21, side stop plates 22, a supporting bottom plate 23 and a top plate 24; the side stop plates 22 are arranged vertically on the fixed bottom plate 21; the supporting bottom plate 23 is connected to the side stop plates 22 simultaneously, and the supporting bottom plate 23 is provided with an inner ring hole; the feeding guide mechanism 31, the outer ring guide mechanism 32 and the inner ring guide mechanism 33 are arranged on the fixed bottom plate 21 and connected through the top plate 24; the inner ring guide mechanism 33 and the winding core guide mechanism are arranged on the fixed bottom plate 21 and located in the inner ring hole of the winding core assembly 34. Preferably, the supporting bottom plate 23 is circular, and the bottom end of the material belt 8 abuts against the supporting bottom plate 23.

[0039] The material belt 8 can be conveyed to the supporting bottom plate 23 through the feeding guide mechanism 31 and slide on the supporting bottom plate 23 through the outer ring guide mechanism 32, and forms a winding shape; the inner end of the material belt 8 can be transmitted out after winding around the winding core assembly 34 and form a second winding through the inner ring guide mechanism 33.

[0040] Specifically, the feeding guide mechanism 31 comprises multiple opposite rotating wheel assemblies 1, material is inserted into the opposite rotating wheel assemblies 1 in the feeding guide mechanism 31 and slides into the supporting bottom plate 23 through the rotating wheel guide assembly; the outer ring guide mechanism 32 comprises a plurality of rotating wheel assemblies 1 arranged around the supporting bottom plate 23, the material belt 8 is rotated on the supporting bottom plate 23 through the rotating wheel assemblies 1 in the outer ring guide mechanism 32 to form a continuous ring shape; the inner ring guide mechanism 33 comprises a plurality of rotating wheel assemblies 1 arranged in a ring shape, the winding core assembly 34 is located in the inner ring guide mechanism 33 and is arranged obliquely, the inner end of the material belt 8 is transmitted outwards after winding around the winding core assembly 34, and at the same time, the material belt 8 between the inner ring guide mechanism 33 and the outer ring guide mechanism 32 is arched inwards and gradually wound on the inner ring guide mechanism 33 due to the opposite rotation directions of the inner ring guide mechanism 33 and the outer ring guide mechanism 32.

[0041] The device main structure is an inner-outer double-layer rotating disc device formed by the outer ring guiding mechanism 32 and the inner ring guiding mechanism 33, the rotating directions are opposite, the material belt 8 enters the support bottom plate 23 through the feeding guiding mechanism 31, and is wound into a roll under the driving of the outer ring guiding mechanism 32, the inner end of the material belt 8 is led out through the roll core assembly 34, and is wound outward into a second roll around the reversely rotating inner ring guiding mechanism 33, finally the material end is led out from the roll core assembly 34 of the second roll, and enters the subsequent finishing device through the guiding. The rolled device can store a large amount of steel belt material in the form of a large roll, and realizes seamless connection of the front and rear processes.

[0042] In other schemes, the rotating wheel assembly 1 includes a rotating wheel motor 11, a rotating wheel shaft 12 and a rotating wheel body 13; the rotating wheel shaft 12 is coaxially arranged on the output shaft of the rotating wheel motor 11, and the rotating wheel body 13 is coaxially fixed on the rotating wheel shaft 12. It should be understood that the bottom of each rotating wheel motor 11 in the feeding guiding mechanism 31, the outer ring guiding mechanism 32 and the inner ring guiding mechanism 33 is connected with the fixed bottom plate 21, the top of the rotating wheel shaft 12 of the feeding guiding mechanism 31 and the outer ring guiding mechanism 32 is connected with the top plate 24, and the side surface of the rotating wheel body 13 abuts against the material belt 8. In addition, it is worth mentioning that the structure of the roll core assembly 34 is the same as that of the rotating wheel assembly 1, and the roll core assembly 34 is located at the center of the inner ring guiding mechanism 33. As a preferred, one or more groups of rotating wheel assemblies 1 can be additionally arranged near the roll core assembly 34 to limit the direction of the material belt 8 entering the roll core assembly 34.

[0043] The material belt 8 is usually wound on the outer ring guiding mechanism 32 for multiple rolls before being manually guided into the roll core assembly 34. When manually guided, a new guiding plate needs to be additionally placed on the support bottom plate 23, one hand needs to fix the guiding plate, and the other hand needs to guide the inner end of the material belt 8 to slide on the guiding plate until entering the roll core assembly 34. Since this operation needs to additionally place and fix the guiding plate, it is relatively cumbersome. Therefore, in other schemes, the guiding plate assembly 4, the transmission mechanism 5 and the driving assembly 6 are also provided; the guiding plate assembly 4 is arranged to be liftable on the support bottom plate 23, one side of the guiding plate assembly can abut against the inner end of the material belt 8, and one end of the guiding plate assembly faces the roll core assembly 34; the transmission mechanism 5 and the driving assembly 6 are arranged on the fixed bottom plate 21, and the driving assembly 6 can drive the guiding plate assembly 4 to lift through the transmission mechanism 5.

[0044] It should be understood that the inner end of the material belt 8 is the end of the innermost circle of the rolled material belt 8, after the guiding plate assembly 4 is lifted, the inner end of the material belt 8 abuts against the guiding plate assembly 4, and moves to the roll core assembly 34 through the guiding plate assembly 4, and the material belt 8 can pass the roll core assembly 34 to be transmitted out.

[0045] By arranging the guiding plate assembly 4, it can be lifted by the driving assembly 6 when needed, which avoids the need to additionally place and fix the guiding plate when the material belt 8 is guided into the roll core assembly 34.

[0046] In other solutions, the releasing assembly 7 is arranged on the fixed base plate 21 and is capable of lowering the guide plate assembly 4 when the inner ring guide mechanism 33 of the transmission mechanism 5 is rotated by the rotating motor 11.

[0047] In other solutions, the transmission mechanism 5 comprises a fixed plate 51, a driving gear ring 52, a connecting assembly 53, a transmission assembly 54, a ratchet wheel 55 and a pawl assembly 56; the fixed plate 51 is arranged on the fixed base plate 21, the driving gear ring 52, the connecting assembly 53 and the transmission assembly 54 are coaxially and rotatably arranged on the fixed plate 51, the ratchet wheel 55 is coaxially arranged on the transmission assembly 54, and the pawl assembly 56 is rotatably arranged on the fixed base plate 21; the driving assembly 6 is capable of rotating the driving gear ring 52, the rotation of the driving gear ring 52 is capable of rotating the connecting assembly 53 and inserting the connecting assembly 53 into the transmission assembly 54, thereby rotating the transmission assembly 54, the rotation of the transmission assembly 54 is capable of lifting or lowering the guide plate assembly 4, the pawl assembly 56 is capable of limiting the reverse rotation of the transmission assembly 54 through the ratchet wheel 55, and when the inner ring guide mechanism 33 of the transmission mechanism 5 is rotated by the rotating motor 11, the pawl assembly 56 is capable of moving away from the ratchet wheel 55 through the releasing assembly 7, the guide plate assembly 4 is lowered by gravity, the transmission assembly 54 is reversed, and the connecting assembly 53 moves away from the transmission assembly 54. It should be understood that the driving assembly 6 comprises a driving motor 61 and a driving gear 62, the driving motor 61 is arranged on the fixed base plate 21, and the driving gear 62 is coaxially arranged on the output shaft of the driving motor 61, and the driving gear 62 and the driving gear ring 52 are engaged.

[0048] In other solutions, the transmission assembly 54 comprises a rotating shaft 541 and a transmission gear 542; the rotating shaft 541 is rotatably arranged on the fixed plate 51, the transmission gear 542 and the ratchet wheel 55 are coaxially arranged on the rotating shaft 541, and the transmission gear 542 is capable of lifting or lowering the guide plate assembly 4; the rotating shaft 541 is provided with a limiting groove 5411, the connecting assembly 53 is capable of being inserted into the limiting groove 5411 and rotating the rotating shaft 541.

[0049] In other solutions, the connecting assembly 53 comprises a transmission ring 531, an insertion block 532 and an elastic rope 533; the transmission ring 531 is rotatably arranged on the fixed plate 51, the insertion block 532 is slidably arranged on the transmission ring 531 and connected with the transmission ring 531 through the elastic rope 533; the top end of the insertion block 532 is provided with an inclined surface, the inner side of the driving gear ring 52 is provided with a pushing groove 521, and the rotation of the pushing groove 521 can press the inclined surface of the insertion block 532, so that the insertion block 532 is inserted into the limiting groove 5411 and abuts against the insertion block 532. It should be understood that the insertion block 532 is located outside the limiting groove 5411 before being pressed, and the insertion block 532 is inserted into the limiting groove 5411 after being pressed, so that one end of the insertion block 532 abuts against the pushing groove 521 and the other end abuts against the limiting groove 5411, and the driving gear ring 52 drives the transmission ring 531 and the rotating shaft 541 to rotate through the insertion block 532; after the driving gear ring 52 stops rotating, the rotating shaft 541 reverses, the insertion block 532 moves away from the abutment of the pushing groove 521, and the elastic rope 533 drives the insertion block 532 to move away from the limiting groove 5411, so that the reverse rotation of the rotating shaft 541 does not drive the transmission ring 531 and the driving gear ring 52 to rotate. It should be understood that when the insertion block 532 is pressed to slide to the lowest position, the top end of the insertion block 532 still has a pressing allowance with the pushing groove 521.

[0050] In other solutions, the releasing assembly 7 comprises a connecting rope 71 and a pushing block 72; the pushing block 72 is arranged on the output shaft of the runner motor 11 close to the inner ring guide mechanism 33 of the transmission mechanism 5, one end of the connecting rope 71 is connected with the pawl assembly 56, and the other end passes through the pushing block 72 and is connected with the fixed bottom plate 21, and the rotation of the pushing block 72 can tighten the connecting rope 71, so that the pawl assembly 56 moves away from the ratchet wheel 55.

[0051] In other solutions, the pawl assembly 56 comprises a pawl body 561, a connecting rod 562 and a torsional spring 563; the connecting rod 562 is arranged on the fixed bottom plate 21, the pawl body 561 is rotatably arranged on the connecting rod 562 and connected with the connecting rod 562 through the torsional spring 563, and the connecting rope 71 is connected with the pawl body 561.

[0052] In other solutions, the guide plate assembly 4 comprises a guide plate body 41, a rack 42 and a telescopic column 43; the telescopic column 43 is arranged on the fixed bottom plate 21, the guide plate body 41 is slidably arranged on the support bottom plate 23, and the rack 42 is arranged on the guide plate body 41 and engaged with the transmission gear 542. It should be understood that the rotation of the transmission gear 542 can make the rack 42 ascend and descend, so as to make the guide plate body 41 ascend and descend.

[0053] The use process of the above-mentioned material belt 8 transition buffer device is as follows: the material belt 8 enters the support bottom plate 23 through the feeding guide mechanism 31, and then is wound on the support bottom plate 23 under the driving of the outer ring guide mechanism 32 to form a first coil, at this time, the inner ring guide mechanism 33 and the winding core assembly 34 are not started; when the first coil of the material belt 8 is wound with enough layers, the driving motor 61 is started, the driving gear 62 drives the driving gear ring 52 to rotate, the pushing groove 521 in the driving gear ring 52 extrudes the insertion block 532 in the connecting assembly 53, the insertion block 532 is inserted into the limiting groove 5411 on the rotating shaft 541, the driving gear ring 52, the transmission ring 531 and the rotating shaft 541 rotate together, and then the transmission gear 542 drives the rack 42 to lift, so that the guide plate body 41 is lifted, in this process, the pawl assembly 56 limits the reverse rotation of the ratchet wheel 55, that is, the pawl assembly 56 limits the reverse rotation of the rotating shaft 541; the inner end of the material belt 8 abuts against the guide plate assembly 4 after being lifted, the operator manually limits the other side of the material belt 8, so that the material belt 8 passes through the winding core assembly 34, and then the inner ring guide mechanism 33 is started, the pushing block 72 rotates by one circle each time, the connecting rope 71 is tightened once, the ratchet wheel 55 body is away from the ratchet wheel 55 once, the guide plate body 41 slides under the action of gravity, the transmission gear 542 reverses, drives the rotating shaft 541 to reverse, so that the insertion block 532 is away from the abutment of the pushing groove 521, and is away from the limiting groove 5411 under the driving of the elastic rope 533, at this time, the reverse rotation of the rotating shaft 541 does not drive the transmission ring 531 or the driving gear ring 52 to rotate; in this process, the material belt 8 is rewound and gradually wound on the inner ring guide mechanism 33. The steel belt after being welded by the above-mentioned material belt transition buffer device is transitioned through the buffer device and then enters the subsequent finishing equipment, whether there is a problem in the unwinding or welding process or a problem in the subsequent finishing process, the upper and lower processes will not affect each other, the risk of stopping production due to an error is avoided, the burden of the upstream workers is reduced, and the safety and quality of production are improved.

[0054] The above examples are only used to illustrate the technical solutions of the present application, but not limit it; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application.

Claims

1. A web transition buffer apparatus, characterized by, The application relates to a winding device. The rotating wheel assembly is rotatable and comprises multiple groups, and forms a feeding guide mechanism, an outer ring guide mechanism and an inner ring guide mechanism, wherein the outer ring guide mechanism and the inner ring guide mechanism rotate in opposite directions. The transmission plate assembly comprises a fixed bottom plate, side stop plates, a supporting bottom plate and a top plate; the side stop plates are arranged vertically on the fixed bottom plate; the supporting bottom plate is connected with the side stop plates; the inner ring hole is arranged on the supporting bottom plate; the feeding guide mechanism, the outer ring guide mechanism and the inner ring guide mechanism are arranged on the fixed bottom plate and connected through the top plate; the inner ring guide mechanism and the winding core guide mechanism are arranged on the fixed bottom plate and located in the inner ring hole of the winding core assembly. The material belt can be conveyed to the supporting bottom plate through the feeding guide mechanism and slid on the supporting bottom plate through the outer ring guide mechanism to form a winding shape; the inner end of the material belt can pass around the winding core assembly and form a second winding through the inner ring guide mechanism. The rotating wheel assembly comprises a rotating wheel motor, a rotating wheel shaft and a rotating wheel body; the rotating wheel shaft is coaxially arranged on the output shaft of the rotating wheel motor; and the rotating wheel body is coaxially fixed on the rotating wheel shaft. The device further comprises a guide plate assembly, a transmission mechanism and a driving assembly; the guide plate assembly is arranged on the supporting bottom plate in a lifting manner; one side of the guide plate assembly can abut against the inner end of the material belt; and one end of the guide plate assembly faces the winding core assembly; the transmission mechanism and the driving assembly are arranged on the fixed bottom plate; and the driving assembly can drive the guide plate assembly to lift through the transmission mechanism. The device further comprises a releasing assembly arranged on the fixed bottom plate. The transmission mechanism comprises a fixed plate, a driving gear ring, a connecting assembly, a transmission assembly, a ratchet wheel and a pawl assembly; the fixed plate is arranged on the fixed bottom plate; the driving gear ring, the connecting assembly and the transmission assembly are coaxially and rotatably arranged on the fixed plate; the ratchet wheel is coaxially fixed on the transmission assembly; and the pawl assembly is rotatably arranged on the fixed bottom plate; the driving assembly can drive the driving gear ring to rotate; the rotation of the driving gear ring can make the connecting assembly rotate forward and insert into the transmission assembly, thereby driving the transmission assembly to rotate; the rotation of the transmission assembly can drive the guide plate assembly to lift; the pawl assembly can limit the reverse rotation of the transmission assembly through the ratchet wheel; when the rotating wheel motor of the inner ring guide mechanism close to the transmission mechanism rotates, the pawl assembly can be driven away from the ratchet wheel through the releasing assembly; the guide plate assembly slides downward under the gravity; the transmission assembly reversely rotates; and the connecting assembly moves away from the transmission assembly. The releasing assembly comprises a connecting rope and a pushing block; the pushing block is arranged on the output shaft of the rotating wheel motor of the inner ring guide mechanism close to the transmission mechanism; one end of the connecting rope is connected with the pawl assembly; the other end of the connecting rope passes through the pushing block and is connected with the fixed bottom plate; and the rotation of the pushing block can tighten the connecting rope, so that the pawl assembly is driven away from the ratchet wheel.

2. The web transition buffer of claim 1, wherein, The transmission assembly comprises a rotating shaft and a transmission gear; the rotating shaft is rotatably arranged on the fixed plate, the transmission gear and the ratchet wheel are coaxially arranged on the rotating shaft respectively, the transmission gear can drive the guide plate assembly to lift; the rotating shaft is provided with a limiting slot, the connecting assembly can be inserted into the limiting slot to drive the rotating shaft to rotate.

3. The web transition buffer of claim 2, wherein, The connecting assembly comprises a transmission ring, an insertion block and an elastic rope; the transmission ring is rotatably arranged on the fixed plate, the insertion block is slidably arranged on the transmission ring and connected with the transmission ring through the elastic rope; the top end of the insertion block is provided with an inclined surface, the inner side of the driving gear ring is provided with a pushing groove, the rotation of the pushing groove can extrude the inclined surface of the insertion block, so that the insertion block is inserted into the limiting slot and abuts against the insertion block.

4. The web transition buffer of claim 3, wherein, The pawl assembly comprises a pawl body, a connecting rod and a torsion spring; the connecting rod is arranged on the fixed bottom plate, the pawl body is rotatably arranged on the connecting rod and connected with the connecting rod through the torsion spring, and the connecting rope is connected with the pawl body.

5. The web transition buffer of claim 4, wherein, The guide plate assembly comprises a guide plate body, a rack and a telescopic column; the telescopic column is arranged on the fixed bottom plate, the guide plate body is slidably arranged on the support bottom plate, and the rack is arranged on the guide plate body and engaged with the transmission gear.

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