Double-channel uncoiling and conveying system for aluminum material for zip-top can cover

Abstract

The utility model relates to the technical field of zip-top can cover processing, in particular to a double-channel uncoiling and conveying system for aluminum materials for zip-top can covers, which comprises a first uncoiling and conveying channel and a second uncoiling and conveying channel which are alternately communicated with a processing and conveying channel of aluminum material processing equipment. The first uncoiling machine is arranged at the head end of the first uncoiling conveying channel, the second uncoiling machine is arranged at the head end of the second uncoiling conveying channel, the first uncoiling machine and the second uncoiling machine can alternately supply aluminum materials to the aluminum material machining equipment, uninterrupted feeding of the aluminum material machining equipment is achieved, and meanwhile the material supplementing pressure of all the uncoiling machines is relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of can cover processing, in particular to a double-channel unwinding and conveying system of aluminum materials for can covers. Background Art

[0002] When using aluminum to produce can lids, an aluminum uncoiler is generally required. Due to the large size and weight of aluminum, the aluminum uncoiler generally requires the cooperation of a crane or a gantry when loading. Since it takes a certain amount of time to change the material of the aluminum uncoiler, in order to ensure uninterrupted production of the production line, it is necessary to prepare to change the material of the aluminum uncoiler when there is still a lot of excess material. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a double-channel unwinding and conveying system for aluminum materials for can covers, so as to solve the problem that the unwinding and conveying of aluminum materials by an unwinding machine is time-consuming and labor-intensive in the production process of can covers.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a dual-channel unwinding and conveying system for aluminum materials for can lids, including a first unwinding and conveying channel and a second unwinding and conveying channel, the first unwinding and conveying channel and the second unwinding and conveying channel are alternately connected to the processing and conveying channel of the aluminum material processing equipment, a first unwinding machine is arranged at the head end of the first unwinding and conveying channel, and the aluminum material of the first unwinding and conveying channel enters the processing and conveying channel through the first unwinding and conveying channel, and a second unwinding machine is arranged at the head end of the second unwinding and conveying channel, and the aluminum material of the second unwinding and conveying channel enters the processing and conveying channel through the second unwinding and conveying channel. The first unwinding machine and the second unwinding machine alternately provide aluminum materials to the aluminum material processing equipment, which is not only beneficial to the continuous production of the aluminum material processing equipment, but also beneficial to reducing the feeding pressure on each unwinding machine.

[0005] As a preferred solution, the first uncoiler, the second uncoiler and the aluminum material processing equipment are arranged in a straight line, the first uncoiler conveying channel is provided with an avoidance area, the second uncoiler is arranged in the avoidance area, and the second uncoiler conveying channel is arranged between the second uncoiler and the aluminum material processing equipment. The second uncoiler conveying channel is provided with an avoidance area for facilitating the installation of the second uncoiler, and the first uncoiler, the second uncoiler and the aluminum material processing equipment are arranged in a straight line, so that the arrangement is conducive to the first uncoiler and the second uncoiler feeding the aluminum material processing equipment.

[0006] As a preferred solution, a conveying frame is provided between the first uncoiler and the aluminum material processing equipment, and a conveying guide roller is provided on the conveying frame. The upper end surfaces of the conveying guide rollers cooperate to form a first uncoiler conveying channel. The aluminum coil of the first uncoiler bypasses the upper end surfaces of the conveying guide rollers and enters the processing conveying channel. The lower part of the conveying guide rollers is an escape zone. The aluminum material of the first uncoiler bypasses the conveying guide rollers on the conveying frame and is transported to the aluminum material processing equipment. The second uncoiler is provided in the conveying frame and the aluminum material of the second uncoiler can be directly transported to the aluminum material processing equipment, so that the first uncoiler and the second uncoiler can supply aluminum material to the aluminum material processing equipment conveniently.

[0007] As a preferred solution, the conveying frame is further provided with a guiding mechanism, which includes an aluminum material clamping member and a guiding member, which is arranged on the conveying frame, and an aluminum material clamping member is arranged at the action end of the guiding member, and the guiding member drives the aluminum material clamping member to reciprocate between the end of the first unwinding conveying channel and the front end of the processing conveying channel. The guiding mechanism can conveniently deliver the head end of the aluminum material supplied by the first unwinding machine to the aluminum material processing equipment, reducing the difficulty of feeding.

[0008] As a preferred solution, the guiding member includes a first transmission wheel, a second transmission wheel, a transmission connecting member and a driving member. The first transmission wheel and the second transmission wheel are both installed on the conveying frame. The transmission connecting member is a transmission chain or a transmission belt. The transmission connecting member is in transmission cooperation with the first transmission wheel and the second transmission wheel. The driving member is arranged on the conveying frame and drives the first transmission wheel or the second transmission wheel. The aluminum clamping member is connected to each transmission connecting member.

[0009] As a preferred solution, the aluminum processing equipment includes a clamping mechanism, which includes a clamping base, a fixed clamping roller, a movable clamping roller and a clamping roller adjusting member. The fixed clamping roller is arranged on the clamping base and is driven to rotate by a clamping driving member. A clamping roller adjusting member is arranged on the clamping base. The action end of the clamping roller adjusting member is connected to the movable clamping roller and adjusts the distance between the movable clamping roller and the fixed clamping roller. A clamping channel is formed between the movable clamping roller and the fixed clamping roller. The clamping channel is located at the head end of the processing and conveying channel and is connected to the processing and conveying channel. The first uncoiling conveying channel and the second uncoiling conveying channel are alternately connected to the clamping channel.

[0010] Compared with the prior art, the utility model has the following beneficial effects: the dual-channel uncoiling and conveying system of the utility model comprises a first uncoiling and conveying channel and a second uncoiling and conveying channel, a first uncoiling machine is arranged at the head end of the first uncoiling and conveying channel, a second uncoiling machine is arranged at the head end of the second uncoiling and conveying channel, the aluminum material of the first uncoiling machine is conveyed to the processing and conveying channel of the aluminum material processing equipment through the first uncoiling and conveying channel, the aluminum material of the second uncoiling machine is conveyed to the processing and conveying channel of the aluminum material processing equipment through the second uncoiling and conveying channel, the first uncoiling and conveying channel and the second uncoiling and conveying channel are alternately connected to the processing and conveying channel of the aluminum material processing equipment, so that the first uncoiling machine and the second uncoiling machine can alternately supply aluminum material to the aluminum material processing equipment, thereby realizing uninterrupted feeding to the aluminum material processing equipment and reducing the feeding pressure of each uncoiling machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 It is a schematic diagram of the side structure of the dual-channel unwinding and conveying system;

[0013] Figure 2 It is a schematic diagram of the three-dimensional structure of the double-channel unwinding and conveying system;

[0014] In the figure: 1. first uncoiler, 2. second uncoiler, 3. transport frame, 4. transport guide roller, 5. guide mechanism, 6. clamping mechanism, 61. fixed clamping roller, 62. movable clamping roller, 63. clamping roller adjusting member. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] like Figure 1 and Figure 2As shown, this embodiment provides a dual-channel uncoiling and conveying system for aluminum materials for can lids, which is used to solve the technical problem in the prior art that the normal production of the production line is affected by the feeding of the aluminum material uncoiling machine. The dual-channel uncoiling and conveying system includes a first uncoiling and conveying channel and a second uncoiling and conveying channel. The first uncoiling and conveying channel and the second uncoiling and conveying channel are alternately connected to the processing and conveying channel of the aluminum material processing equipment. A first uncoiling and conveying channel is provided at the head end of the first uncoiling and conveying channel. The aluminum material of the first uncoiling and conveying machine 1 enters the processing and conveying channel through the first uncoiling and conveying channel. A second uncoiling and conveying channel is provided at the head end of the second uncoiling and conveying channel. The aluminum material of the second uncoiling and conveying machine 2 enters the processing and conveying channel through the second uncoiling and conveying channel.

[0017] Specifically, the dual-channel uncoiling and conveying system for aluminum materials for can lids of the present embodiment has two uncoiling and conveying channels, namely a first uncoiling and conveying channel and a second uncoiling and conveying channel. A first uncoiling machine 1 is arranged at the head end of the first uncoiling and conveying channel, and a second uncoiling machine 2 is arranged at the head end of the second uncoiling and conveying channel. The first uncoiling machine 1 and the second uncoiling machine 2 are both uncoiling equipment for aluminum material processing, and the present utility model does not elaborate on their structures. The first uncoiling conveying channel and the second uncoiling conveying channel are alternately connected to the processing and conveying channel of the aluminum material processing equipment. When the first uncoiling conveying channel is connected to the processing and conveying channel of the aluminum material processing equipment, the aluminum material on the first uncoiling machine 1 is supplied to the aluminum material processing equipment through the first uncoiling conveying channel, and the aluminum material supplied to the aluminum material processing equipment enters the processing and conveying channel of the aluminum material processing equipment for processing, at which time the second uncoiling machine 2 can be refilled. When the aluminum material on the first uncoiling machine 1 is unrolled, the second uncoiling conveying channel is connected to the processing and conveying channel of the aluminum material processing equipment, at which time the aluminum material on the second uncoiling machine 2 is supplied to the aluminum material processing equipment through the second uncoiling conveying channel for processing, and at this time the first uncoiling machine 1 can be refilled. The first uncoiling conveying channel and the second uncoiling conveying channel are alternately connected to the processing and conveying channel of the aluminum material processing equipment, thereby ensuring the smoothness of the processing of the aluminum material processing equipment and reducing the pressure of refilling on each uncoiling machine.

[0018] In this embodiment, a first uncoiling and conveying channel and a second uncoiling and conveying channel are arranged. A first uncoiler 1 is arranged at the head end of the first uncoiling and conveying channel, and a second uncoiler 2 is arranged at the head end of the second uncoiling and conveying channel. When the first uncoiler 1 and the first uncoiling and conveying channel are used to feed materials to the aluminum material processing equipment, the second uncoiler 2 can be replenished with materials. When the second uncoiler 2 and the second uncoiling and conveying channel are used to feed materials to the aluminum material processing equipment, the first uncoiler 1 can be replenished with materials. The first uncoiler 1 and the second uncoiler 2 are alternately uncoiled and fed, which is not only beneficial for the continuous and stable production of the aluminum material processing equipment, but also beneficial for reducing the pressure of replenishing materials on the first uncoiler 1 and the second uncoiler 2.

[0019] In a further embodiment, the first uncoiler 1, the second uncoiler 2 and the aluminum processing equipment are arranged in a straight line, the first uncoiler conveying channel is provided with an avoidance area, the second uncoiler 2 is arranged in the avoidance area, and the second uncoiler conveying channel is arranged between the second uncoiler 2 and the aluminum processing equipment.

[0020] An avoidance zone is set in the first uncoiler and conveying channel, and an installation space is provided for the second uncoiler 2. The aluminum material of the second uncoiler 2 is directly supplied to the aluminum material processing equipment through the second uncoiler and conveying channel, while the aluminum material of the first uncoiler 1 bypasses the avoidance zone and is supplied to the aluminum material processing equipment through the first uncoiler and conveying channel.

[0021] As a specific example of the first unwinding conveying passage and the second unwinding conveying passage, see Figure 1 and Figure 2 A conveying frame 3 is arranged between the first uncoiler 1 and the aluminum material processing equipment, and a conveying guide roller 4 is arranged on the conveying frame 3. The upper end surfaces of each conveying guide roller 4 cooperate to form a first uncoiling and conveying channel. The aluminum coil of the first uncoiler 1 bypasses the upper end surfaces of each conveying guide roller 4 and enters the processing and conveying channel. The lower part of the conveying guide roller 4 is an avoidance area.

[0022] Specifically, a conveying frame 3 is arranged between the first uncoiler 1 and the aluminum material processing equipment, and a conveying guide roller 4 is arranged on the conveying frame 3. The aluminum coil of the first uncoiler 1 passes around the upper end surface of each conveying guide roller 4 and is conveyed to the aluminum material processing equipment. The upper end surface of each conveying guide roller 4 cooperates to form a first uncoiling conveying channel;

[0023] The area below the transport guide roller 4 in the transfer rack is an avoidance area, and the second uncoiler 2 is arranged in the avoidance area inside the transfer rack. In some embodiments, the second uncoiler 2 is close to the aluminum processing equipment, and the vacant area between the second uncoiler 2 and the aluminum processing equipment is the second uncoiler and transport channel. The aluminum material of the second uncoiler 2 directly leads to the aluminum processing equipment. In other embodiments, there is a long distance between the second uncoiler 2 and the aluminum processing equipment. At this time, a number of supporting guide rollers can be set between the second uncoiler 2 and the aluminum processing equipment. The aluminum material of the second uncoiler 2 bypasses each supporting guide roller or is supported by each supporting guide roller and leads to the aluminum processing equipment. At this time, the surfaces of each supporting guide roller cooperate to form a second uncoiler and transport channel.

[0024] See also Figure 1 and Figure 2 In order to further improve the stability of aluminum material transportation, a reversing roller is provided at the end of the conveying frame 3 facing the first uncoiler 1. The aluminum material of the first uncoiler 1 passes around the lower end surface of the reversing roller and then passes around the upper end surfaces of each conveying guide roller 4 in turn, and is finally supplied to the aluminum material processing equipment.

[0025] Since the aluminum material of the first uncoiler 1 needs to bypass the conveying guide rollers 4 on the transfer rack when passing through the first uncoiler conveying channel, in order to facilitate the aluminum material of the first uncoiler conveying channel to be conveyed to the processing conveying channel of the aluminum material processing equipment, please refer to Figure 1 and Figure 2 In some embodiments, the conveying frame 3 is also provided with a guiding mechanism 5, which includes an aluminum material clamping member and a guiding member. The guiding member is arranged on the conveying frame 3, and the aluminum material clamping member is arranged at the action end of the guiding member. The guiding member drives the aluminum material clamping member to reciprocate between the end of the first unwinding conveying channel and the front end of the processing conveying channel.

[0026] Specifically, the guide mechanism 5 includes an aluminum material clamp and a guide member. The guide member is arranged on the conveying frame 3. The aluminum material clamp is arranged at the action end of the guide member. The guide member drives the aluminum material clamp to move back and forth between the end of the first unwinding conveying channel and the front end of the processing conveying channel. When the first unwinding machine 1 is replenished, the guide member drives the aluminum material clamp to move to the end of the first unwinding conveying channel. After the aluminum material on the first unwinding machine 1 passes through the first unwinding conveying channel, the front end of the aluminum material is clamped by the aluminum material clamp. When the aluminum material of the first unwinding machine 1 needs to be supplied to the aluminum material processing equipment, the guide member drives the aluminum material clamp to move to the front end of the processing conveying channel. After the aluminum material clamp releases the aluminum material, the end of the aluminum material is manually or by tooling to be fed into the processing conveying channel of the aluminum material processing equipment.

[0027] As a specific example of a guiding member, the guiding member includes a first transmission wheel, a second transmission wheel, a transmission connecting member and a driving member. The first transmission wheel and the second transmission wheel are both installed on the conveying frame 3. The transmission connecting member is a transmission chain or a transmission belt. The transmission connecting member is in transmission cooperation with the first transmission wheel and the second transmission wheel. The driving member is arranged on the conveying frame 3 and drives the first transmission wheel or the second transmission wheel. The aluminum clamp is connected to each transmission connecting member.

[0028] Specifically, the first transmission wheel and the second transmission wheel are both installed on the conveying frame 3, the first transmission wheel is located at the end of the first unwinding conveying channel, and the second transmission wheel is located close to the aluminum processing equipment. The transmission connecting member is a transmission chain or a transmission belt, and the transmission connecting member and the first transmission wheel and the second transmission wheel are in transmission cooperation. The driving member is preferably a servo motor, and the driving member is arranged on the conveying frame 3. The power output end of the driving member is connected to the first transmission wheel or the second transmission wheel. The driving member drives the first transmission wheel or the second transmission wheel to rotate, thereby driving the transmission connecting member to rotate. The aluminum clamping member is connected to each transmission connecting member, and each transmission connecting member rotates to drive the aluminum clamping member to reciprocate between the end of the first unwinding conveying channel and the front end of the processing conveying channel.

[0029] In order to improve the structural stability of the guiding member, there are at least two first transmission wheels and second transmission wheels, each first transmission wheel is connected by a first connecting rod, each second transmission wheel is connected by a second connecting rod, each first transmission wheel corresponds to a second transmission wheel, each first transmission wheel is connected to the corresponding second transmission wheel by a transmission connecting member, and the aluminum clamping member is connected to each transmission connecting member.

[0030] As a specific example of an aluminum clamp, the aluminum clamp includes a fixed part and a movable part, the fixed part is connected to each transmission connecting part, a fixed clamping surface is provided on the fixed part, the movable part is connected to the fixed part by bolts, and a movable clamping surface is provided on the movable part. After the aluminum passes through the fixed clamping surface and the movable clamping surface, the movable part is connected to the fixed part to clamp the end of the aluminum.

[0031] When the aluminum material of the second decoiler 2 enters the aluminum material processing equipment through the second decoiler conveying channel, the aluminum material passes under the second transmission wheel.

[0032] In order to stably feed aluminum materials into the processing and conveying channel of aluminum processing equipment for processing, please refer to Figure 2 In some embodiments, the aluminum processing equipment includes a clamping mechanism 6, which includes a clamping base, a fixed clamping roller 61, a movable clamping roller 62 and a clamping roller adjusting member 63. The fixed clamping roller 61 is arranged on the clamping base and driven to rotate by a clamping driving member. A clamping roller adjusting member 63 is arranged on the clamping base. The action end of the clamping roller adjusting member 63 is connected to the movable clamping roller 62 and adjusts the distance between the movable clamping roller 62 and the fixed clamping roller 61. A clamping channel is formed between the movable clamping roller 62 and the fixed clamping roller 61. The clamping channel is located at the head end of the processing and conveying channel and is connected to the processing and conveying channel. The first uncoiling conveying channel and the second uncoiling conveying channel are alternately connected to the clamping channel.

[0033] Specifically, the clamping mechanism 6 includes a clamping base, a fixed clamping roller 61, a movable clamping roller 62 and a clamping roller adjusting member 63. The fixed clamping roller 61 is arranged on the clamping base. A clamping driving member is arranged on the clamping base. The clamping driving member is a motor. The power output end of the clamping driving member is connected to the fixed clamping roller 61 and drives the fixed clamping roller 61 to rotate; a clamping roller adjusting member 63 is also arranged on the clamping base. The clamping roller adjusting member 63 is preferably an oil cylinder. The action end of the clamping roller adjusting member 63 is provided with a movable clamping roller 62. The movable clamping roller 62 is parallel to the fixed clamping roller 61 and is rotatably connected to the clamping roller adjusting member 63. The clamping roller adjusting member 63 drives the movable clamping roller 62 to approach or move away from the fixed clamping roller 61, thereby adjusting the distance between the movable clamping roller 62 and the fixed clamping roller 61.

[0034] A pinching channel is formed between the movable pinching roller 62 and the fixed pinching roller 61. The pinching channel is located at the head end of the processing and conveying channel and is connected to the processing and conveying channel. When the first uncoiling and conveying channel is connected to the processing and conveying channel, the aluminum material in the first uncoiling and conveying channel passes through the pinching channel and enters the processing and conveying channel. When the second uncoiling and conveying channel is connected to the processing and conveying channel, the aluminum material in the second uncoiling and conveying channel passes through the pinching channel and enters the processing and conveying channel.

[0035] When the head end of the aluminum material in the first uncoiling conveying channel or the second uncoiling conveying channel enters into the clamping channel, the clamping roller adjusting member 63 drives the movable clamping roller 62 to approach the fixed clamping roller 61, and the aluminum material is clamped by the fixed clamping roller 61 and the movable clamping roller 62. The clamping driving member drives the fixed clamping roller 61 to rotate and drives the aluminum material to move into the processing and conveying channel. When the aluminum material can be towed for processing by the aluminum material processing equipment, the clamping roller adjusting member 63 drives the movable clamping roller 62 away from the fixed clamping roller 61.

[0036] In the description of this specification, the description of reference terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. Double channel unwinding and conveying system for aluminum materials for can lids, characterized by: The invention comprises a first uncoiling conveying channel and a second uncoiling conveying channel, wherein the first uncoiling conveying channel and the second uncoiling conveying channel are alternately connected to a processing conveying channel of an aluminum material processing device, wherein a first uncoiling machine (1) is arranged at the head end of the first uncoiling conveying channel, and the aluminum material of the first uncoiling machine (1) enters the processing conveying channel through the first uncoiling conveying channel, and a second uncoiling machine (2) is arranged at the head end of the second uncoiling conveying channel, and the aluminum material of the second uncoiling machine (2) enters the processing conveying channel through the second uncoiling conveying channel.

2. The dual-channel unwinding and conveying system for aluminum materials for can lids according to claim 1, characterized in that: The first uncoiler (1), the second uncoiler (2) and the aluminum material processing equipment are arranged in a straight line, the first uncoiler conveying channel is provided with an avoidance area, the second uncoiler (2) is arranged in the avoidance area, and the second uncoiler conveying channel is arranged between the second uncoiler (2) and the aluminum material processing equipment.

3. The dual-channel unwinding and conveying system for aluminum materials for can lids according to claim 2, characterized in that: A conveying frame (3) is arranged between the first uncoiler (1) and the aluminum material processing equipment, and a conveying guide roller (4) is arranged on the conveying frame (3). The upper end surfaces of the conveying guide rollers (4) cooperate to form a first uncoiler conveying channel. The aluminum coil of the first uncoiler (1) bypasses the upper end surfaces of the conveying guide rollers (4) and enters the processing conveying channel. The lower part of the conveying guide rollers (4) is an avoidance zone.

4. The dual-channel unwinding and conveying system for aluminum materials for can lids according to claim 3, characterized in that: The conveying frame (3) is also provided with a guiding mechanism (5), the guiding mechanism (5) comprising an aluminum material clamping member and a guiding member, the guiding member being arranged on the conveying frame (3), the aluminum material clamping member being arranged at the action end of the guiding member, the guiding member driving the aluminum material clamping member to reciprocate between the end of the first unwinding conveying channel and the front end of the processing conveying channel.

5. The dual-channel unwinding and conveying system for aluminum materials for can lids according to claim 4, characterized in that: The guide member comprises a first transmission wheel, a second transmission wheel, a transmission connection member and a driving member, the first transmission wheel and the second transmission wheel are both mounted on a transport frame (3), the transmission connection member is a transmission chain or a transmission belt, the transmission connection member and the first transmission wheel and the second transmission wheel are both in transmission cooperation, the driving member is arranged on the transport frame (3) and drives the first transmission wheel or the second transmission wheel, and the aluminum material clamping member is connected to each transmission connection member.

6. The dual-channel unwinding and conveying system for aluminum materials for can lids according to claim 3, characterized in that: The aluminum material processing equipment comprises a clamping mechanism (6), the clamping mechanism (6) comprising a clamping base, a fixed clamping roller (61), a movable clamping roller (62) and a clamping roller adjusting member (63), the fixed clamping roller (61) being arranged on the clamping base and driven to rotate by a clamping driving member, the clamping base being provided with a clamping roller adjusting member (63), the action end of the clamping roller adjusting member (63) being connected to the movable clamping roller (62) and adjusting the distance between the movable clamping roller (62) and the fixed clamping roller (61), a clamping channel being formed between the movable clamping roller (62) and the fixed clamping roller (61), the clamping channel being located at the head end of the processing and conveying channel and communicating with the processing and conveying channel, and the first uncoiling and conveying channel and the second uncoiling and conveying channel being alternately communicated with the clamping channel.

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