Conveying structure and double faced adhesive tape production line

Abstract

The invention relates to the technical field of conveying devices, and discloses a conveying structure and a double faced adhesive tape production line. The conveying device is provided with a conveying belt capable of rotating, and a conveying face moving in the direction of the winding roller is formed on the top side of the conveying belt; the transfer unit comprises a transfer frame, an unwinding roller, a transfer roller, a separation assembly, a cutting assembly and a pressing assembly, the unwinding roller and the transfer roller are rotationally connected to the transfer frame, the pressing assembly is provided with a pressing plate capable of being close to the conveying face downwards or away from the conveying face upwards, and the separation assembly is located between the unwinding roller and the transfer roller; the coiled materials on the unwinding roller can be unwound, pass through the transfer roller and are guided to the lower side of the pressing plate, the separating assembly is used for separating release paper on the coiled materials, the cutting assembly is used for cutting the separated release paper, splicing of the two coiled materials can be achieved in the conveying process through the conveying belt, and the conveying efficiency is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of conveying devices, and in particular to a conveying structure and a double-sided adhesive production line. Background Art

[0002] Double-sided tape is widely used in sanitary napkins and other products. The production of double-sided tape requires multiple processes. After a small roll of double-sided tape is formed, multiple smaller rolls of double-sided tape are usually spliced ​​and rewound to form a large roll to facilitate transfer to the next workstation. Currently, after a roll of double-sided tape is unwound, the next roll of double-sided tape needs to be manually spliced ​​to the end of the previous roll, and the two are fixed to each other by hot melting. This operation is cumbersome and difficult to improve production efficiency. Therefore, there is an urgent need for a structure that can splice double-sided tape during transportation to improve overall production efficiency. Summary of the invention

[0003] The purpose of the present invention is to provide a conveying structure and a double-sided adhesive production line to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] The solution of the present invention to solve its technical problem is: A conveying structure, comprising: a winding device, which has a rotating winding roller; a conveying device, which has a conveying belt that can rotate, and a conveying surface that moves toward the winding roller is formed on the top side of the conveying belt; a transfer unit, including a transfer frame, a unwinding roller, a transfer roller, a separation component, a cutting component and a crimping component, the unwinding roller and the transfer roller are respectively rotatably connected to the transfer frame, the crimping component has a pressure plate that can move downward toward the conveying surface or upward away from the conveying surface, the separation component is located between the unwinding roller and the transfer roller, the coil on the unwinding roller can be unwound through the transfer roller and guided to the lower side of the pressure plate, the separation component is used to separate the release paper on the coil, and the cutting component is used to cut the separated release paper.

[0005] The technical solution has at least the following beneficial effects: the double-sided adhesive roll material to be unwound and spliced ​​is loaded into the unwinding roller, and after the roll material is unwound and passes through the transfer roller, the release paper on the roll material is torn off to the separation component, and the part of the roll material with the release paper torn off continues to be guided to the lower side of the pressing plate. At this time, after the release paper is torn off the roll material on the bottom side of the pressing plate, the exposed adhesive surface of the part faces downward, and the winding roller is used to wind up the roll material. After the winding of the previous roll material is completed, the end part of the roll material is still on the conveying surface. When two roll materials need to be spliced ​​together, the pressing plate moves down, presses the head end of the next roll material tightly against the end of the previous roll material, and uses the adhesive surface of the next roll material to bond and fix the two together, and then the pressing plate moves up a distance, removes the pressure on the roll material and directly presses it to the conveying surface. The pressure of the feeding surface, the movement of the conveyor belt, the unwinding roller rotates to unwind, and the winding roller rotates to rewind. At this time, the separation component continuously separates the release paper from the roll passing through the transfer roller, so that the adhesive surface of the roll can continue to adhere to the end part of the previous roll. Then the cutting component cuts off the separated release paper to stop the release paper from continuing to be separated from the roll. The pressure plate can move upward to reset, and the unwinding roller releases the complete roll onto the conveyor belt, which is kept by the conveyor belt to stably transfer the roll to the winding roller to realize the winding of the roll. In this way, by separating part of the release paper from the next roll and directly connecting it with the tail of the previous roll by bonding, the two rolls can be spliced ​​in the process of conveying with the conveyor belt, effectively improving the conveying efficiency.

[0006] As a further improvement of the above technical solution, the separation assembly includes a separation roller and a feeding roller which are respectively rotatably connected to the transfer frame, a first material transfer gap is formed between the separation roller and the top side of the transfer roller, two feeding rollers are arranged in the up-down direction, a second material transfer gap for sending out the release paper is formed between the two feeding rollers, and the coil unwound from the unwinding roller passes through the first material transfer gap. When the coil enters the first material transfer gap, the release paper on the coil is separated from the separation roller, and the separation roller can be used to guide the release paper and the coil separated from the release paper, so that the release paper is guided to the second material transfer gap after passing through, and the two feeding rollers are used to rotate to send out the release paper, and the coil separated from the release paper is guided to the transfer roller, so that it is convenient to guide the coil and the release paper, and the release paper can be continuously sent out.

[0007] As a further improvement of the above technical solution, a pressure roller is rotatably connected to the transfer frame, and a third material transfer gap is formed between the pressure roller and one side of the bottom of the transfer roller. The coil unwound from the unwinding roller passes through the third material transfer gap and is guided to the lower side of the pressure plate. The coil separated from the release paper or the complete coil can be guided through the third material transfer gap, and the coil is pressed toward the transfer roller by the pressure roller, so that the coil can be better guided and sent out, especially when the complete coil is unwound to the conveyor belt, the stability is higher.

[0008] As a further improvement of the above technical solution, the transfer frame is connected to a guide plate located above the pressure roller, and the guide plate is inclined from top to bottom toward the direction close to the transfer roller. When the release paper is no longer needed to be separated, the release paper is cut by the cutting assembly. At this time, the end of the release paper is partially separated from the surface of the coil. When passing through the guide plate, the inclined guidance of the guide plate can make the release paper close to the surface of the coil, so that it can be closely attached to the surface of the coil again when entering the third feeding gap, effectively preventing the separated release paper from curling.

[0009] As a further improvement of the above technical solution, the cutting assembly includes a cutting drive and a cutter, wherein the cutting drive is connected to the transfer frame, the cutting drive drives the cutter, and the cutting drive can drive the cutter to move in a direction close to or away from the transfer roller. When the release paper is being separated, the cutting drive drives the cutter to a state away from the transfer roller, and when the release paper needs to be cut, the cutting drive drives the cutter close to the transfer roller to cut the release paper led to the separation assembly.

[0010] As a further improvement of the above technical solution, a blade is provided on the side of the cutter facing the transfer roller, and the two ends of the blade are inclined toward the center away from the transfer roller. When the cutter approaches the release paper, the two sides of the blade first contact the two sides of the release paper respectively, which can effectively limit the position of the release paper and prevent the release paper from shifting. As the cutting drive drives the blade to gradually approach the transfer roller, the release paper can be gradually pressurized, thereby achieving cutting of the release paper from both sides to the center.

[0011] As a further improvement of the above technical solution, the crimping assembly includes a crimping drive connected to the intermediate transfer rack, the crimping drive drives the pressure plate, the crimping drive can drive the pressure plate to move up and down, the top side of the pressure plate is connected to a first negative pressure source, the bottom side of the pressure plate is provided with a plurality of first negative pressure holes, the first negative pressure source is connected to the plurality of first negative pressure holes through a pipeline. When the coil is guided to the bottom side of the pressure plate, the first negative pressure source is started, so that negative pressure is formed at the plurality of first negative pressure holes to achieve adsorption of the coil, so that the coil can be kept relatively fixed to the bottom side of the pressure plate, and when the pressure plate presses the coil down to the end of the previous coil to be spliced ​​with each other, the first negative pressure source stops generating negative pressure at the first negative pressure holes, and removes the negative pressure suction on the coil.

[0012] As a further improvement of the above technical solution, a negative pressure box is provided in the conveying device, the negative pressure box is connected to a second negative pressure source through a pipeline, a connecting hole is provided on the top side of the negative pressure box, and a plurality of second negative pressure holes are provided on the conveyor belt. When the coil is conveyed on the conveyor belt, the second negative pressure source forms a negative pressure on the negative pressure box, so that a negative pressure suction force is formed at the plurality of second negative pressure holes on the conveyor belt, so that the coil can be closely attached to the conveyor belt, unfolded and laid flat on the conveyor belt, and the coil can be stably sent to the winding roller as the conveyor belt rotates.

[0013] As a further improvement of the above technical solution, the present invention also includes a base frame, the base frame is connected with a translation drive, the translation drive is connected with a translation seat, at least two transfer units are arranged on the translation seat, the translation drive can drive the translation seat to reciprocate in the horizontal direction and make at least one of the transfer units face the conveyor belt. During operation, one transfer unit faces the conveyor belt to realize the splicing and unwinding of the coiled material, while the other transfer unit is staggered with the conveyor belt, and the winding roller in the transfer unit can be loaded and unloaded to realize the timely replenishment of the coiled material. After the unwinding of the transfer unit with the conveyor belt is completed, the translation drive drives the translation seat to face the replenished transfer unit to the conveyor belt, which can save the replenishment time and further improve the overall production efficiency.

[0014] A double-sided adhesive tape production line comprises the above-mentioned conveying structure.

[0015] This technical solution has at least the following beneficial effects: in this double-sided adhesive production line, the conveying structure separates part of the release paper from the next roll and directly connects it with the tail of the previous roll by bonding, so that the two rolls can be spliced ​​during the conveying process using the conveyor belt, effectively improving the conveying efficiency, thereby making the overall production more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly describes the drawings required for use in the description of the embodiments. Obviously, the drawings described are only part of the embodiments of the present invention, not all of the embodiments, and those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the conveying structure of the present invention.

[0018] Figure 2 yes Figure 1 A partial enlarged schematic diagram of part A.

[0019] In the accompanying drawings: 1-winding roller, 21-conveyor belt, 22-negative pressure box, 31-transfer frame, 32-unwinding roller, 33-transfer roller, 341-pressure plate, 342-crimping drive member, 343-first negative pressure source, 351-separation roller, 352-feeding roller, 36-pressure roller, 37-guide plate, 381-cutting drive member, 382-cutter, 41-base frame, 42-translation drive member. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the present invention. In addition, all the connection relationships mentioned in the text do not refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connecting accessories according to the specific implementation situation. The various technical features in the invention can be combined interchangeably without conflicting with each other.

[0021] Reference Figure 1 and Figure 2 A conveying structure, comprising: a winding device, which has a rotating winding roller 1; a conveying device, which has a conveying belt 21 that can rotate, and the top side of the conveying belt 21 is formed with a conveying surface that moves toward the winding roller 1; a transfer unit, including a transfer frame 31, a reeling roller 32, a transfer roller 33, a separation component, a cutting component and a crimping component, the reeling roller 32 and the transfer roller 33 are respectively rotatably connected to the transfer frame 31, and the crimping component has a function of moving downward toward the conveying surface or upward away from the conveying surface. The pressure plate 341 on the conveying surface, the separation component is located between the unwinding roller 32 and the transfer roller 33, the coiled material on the unwinding roller 32 can be unwound through the transfer roller 33 and guided to the lower side of the pressure plate 341, the separation component is used to separate the release paper on the coiled material, and the cutting component is used to cut the separated release paper. Naturally, in order to drive the unwinding roller 32, the transfer roller 33 and the winding roller 1 to rotate, motors are respectively configured to provide rotational driving force to the unwinding roller 32, the transfer roller 33 and the winding roller 1.

[0022] In this conveying structure, the double-sided adhesive roll material to be unwound and spliced ​​is loaded into the unwinding roller 32. After the roll material is unwound and passes through the transfer roller 33, the release paper on the roll material is torn off to the separation component, and the part of the roll material with the release paper torn off continues to be guided to the lower side of the pressure plate 341. At this time, after the release paper is torn off the roll material on the bottom side of the pressure plate 341, the exposed adhesive surface of the part faces downward, and the winding roller 1 is used to wind up the roll material. After the winding of the previous roll material is completed, the end part of the roll material is still on the conveying surface. When two roll materials need to be spliced ​​together, the pressure plate 341 moves down, presses the head end of the next roll material against the end of the previous roll material, and uses the adhesive surface of the next roll material to bond and fix the two together. Then the pressure plate 341 moves up a distance to remove the pressure on the roll material directly pressing against the conveying surface. The conveyor belt 21 moves, the unwinding roller 32 rotates to unwind, and the winding roller 1 rotates to rewind. At this time, the separation component continuously separates the release paper from the roll material passing through the transfer roller 33, so that the adhesive surface of the roll material can continue to adhere to the end part of the previous roll material, and then the cutting component cuts off the separated release paper to stop the release paper from continuing to be separated from the roll material, and the pressure plate 341 can move upward to reset, and the unwinding roller 32 releases the complete roll material onto the conveyor belt 21, and the conveyor belt 21 keeps the roll material stably transferred to the winding roller 1 to achieve the winding of the roll material. In this way, by separating part of the release paper from the next roll material and directly connecting it with the tail of the previous roll material by bonding, it is possible to achieve splicing of the two roll materials during the transportation using the conveyor belt 21, thereby effectively improving the transportation efficiency.

[0023] In practical applications, in order to prevent the coil from adhering to the transfer roller 33 and the pressure plate 341, some anti-adhesion measures can be taken on the transfer roller 33 and the pressure plate 341. For example, the contact surface of the transfer roller 33 and the pressure plate 341 with the coil is a smooth surface, or an anti-stick coating is further added.

[0024] The separation component is mainly used to pull out the separated release paper. In the present embodiment, the separation component includes a separation roller 351 and a feed roller 352 which are respectively rotatably connected to the transfer frame 31. A first feeding gap is formed between the separation roller 351 and the top side of the transfer roller 33. Two feed rollers 352 are arranged in the up and down directions. A motor is arranged on the transfer frame 31, which can provide driving force to the two feed rollers 352 at the same time. A second feeding gap for feeding out the release paper is formed between the two feed rollers 352. The roll unwound from the unwinding roller 32 passes through the first feeding gap. When the roll material enters the first feeding gap, the release paper on the roll material is separated from the separation roller 351, and the separation roller 351 can be used to guide the release paper and the roll material with the release paper separated, so that the release paper is led to the second feeding gap after passing, and the two feeding rollers 352 are used to rotate to feed the release paper, and the roll material with the release paper separated is led to the transfer roller 33, so that it is convenient to guide the roll material and the release paper, and the release paper can be continuously fed out.

[0025] In order to stably deliver the coiled material after passing through the transfer roller 33, in this embodiment, a pressure roller 36 is rotatably connected to the transfer frame 31, and a third material transfer gap is formed between the pressure roller 36 and one side of the bottom of the transfer roller 33. The coiled material unwound from the unwinding roller 32 is guided to the lower side of the pressing plate 341 after passing through the third material transfer gap. The coiled material separated from the release paper or the complete coiled material can be guided through the third material transfer gap, and the coiled material can be pressed toward the transfer roller 33 by the pressure roller 36, so that the coiled material can be better guided and delivered, especially when the complete coiled material is unwound to the conveyor belt 21, the stability is higher.

[0026] When the separated release paper passes directly through the transfer roller 33 and is directly sent to the conveyor belt 21, the release paper is easily compressed and folded on the conveyor belt 21, thereby affecting the tightness of the final winding. Therefore, in this embodiment, the transfer frame 31 is located above the pressure roller 36 and is connected with a guide plate 37, and the guide plate 37 is inclined from top to bottom toward the transfer roller 33. When the release paper is no longer needed to be separated, the release paper is cut by the cutting assembly. At this time, the end of the release paper is partially separated from the surface of the coil. When passing through the guide plate 37, the inclined guide of the guide plate 37 can make the release paper close to the surface of the coil, so that it can be closely attached to the surface of the coil again when entering the third feeding gap, effectively preventing the separated release paper from curling.

[0027] The cutting assembly is used to cut the release paper. Specifically, the cutting assembly includes a cutting drive 381 and a cutter 382. The cutting drive 381 is connected to the transfer frame 31. The cutting drive 381 drives the cutter 382. The cutting drive 381 can drive the cutter 382 to move in a direction close to or away from the transfer roller 33. The cutting drive 381 can be a cylinder, an electric screw or a hydraulic cylinder. When the release paper is being separated, the cutting drive 381 drives the cutter 382 to a state away from the transfer roller 33. When the release paper needs to be cut, the cutting drive 381 drives the cutter 382 close to the transfer roller 33 to cut the release paper led to the separation assembly.

[0028] Furthermore, a blade is provided on the side of the cutter 382 facing the transfer roller 33, and the two ends of the blade are inclined toward the center away from the transfer roller 33. When the cutter 382 approaches the release paper, the two sides of the blade first contact the two sides of the release paper, which can effectively limit the position of the release paper and prevent the release paper from shifting. As the cutting drive 381 drives the blade to gradually approach the transfer roller 33, the release paper can be gradually pressurized, thereby achieving the cutting of the release paper from both sides to the center.

[0029] When the coil is guided to the bottom side of the pressing plate 341, the coil needs to be relatively positioned to the bottom side of the pressing plate 341. The head end of the coil can be folded upward and directly bonded to the bottom side of the pressing plate 341. In order to improve the convenience of use, in the present embodiment, the crimping assembly includes a crimping drive 342 connected to the transfer rack 31, and the crimping drive 342 drives the pressing plate 341. The crimping drive 342 can drive the pressing plate 341 to move up and down. The crimping drive 342 can adopt a cylinder, an electric screw or a hydraulic cylinder, etc. The top side of the pressing plate 341 is connected to a first negative pressure source 343, and the bottom side of the pressing plate 341 is provided with a plurality of first negative pressure holes, and the first negative pressure source 343 is connected to the plurality of first negative pressure holes through a pipeline. When the coil is guided to the bottom side of the pressure plate 341, the first negative pressure source 343 is started, so that negative pressure is formed at the multiple first negative pressure holes to achieve adsorption of the coil, thereby keeping the coil relatively fixed to the bottom side of the pressure plate 341. When the pressure plate 341 presses the coil down to connect with the end of the previous coil, the first negative pressure source 343 stops generating negative pressure at the first negative pressure holes and removes the negative pressure suction on the coil.

[0030] When the coil is guided to the conveyor belt 21, the friction between the coil and the conveyor belt 21 can drive the coil to slide on the conveyor belt 21. In order to improve the stability of the coil transportation, in this embodiment, a negative pressure box 22 is provided in the conveying device, and the negative pressure box 22 is connected to the second negative pressure source through a pipeline. A connecting hole is provided on the top side of the negative pressure box 22, and a plurality of second negative pressure holes are provided on the conveyor belt 21. When the coil is transported on the conveyor belt 21, the second negative pressure source forms a negative pressure on the negative pressure box 22, so that a negative pressure suction force is formed at the plurality of second negative pressure holes on the conveyor belt 21, so that the coil can be closely attached to the conveyor belt 21, unfolded and laid flat on the conveyor belt 21, and the coil can be stably sent to the winding roller 1 as the conveyor belt 21 rotates.

[0031] The present invention also includes a base frame 41, on which a translation drive 42 is connected, and the translation drive 42 is driven to be connected to a translation seat, and at least two transfer units are arranged on the translation seat, and the translation drive 42 can drive the translation seat to reciprocate in the horizontal direction and make at least one of the transfer units face the conveyor belt 21, and the translation drive 42 can be a cylinder, a hydraulic cylinder or an electric screw. During operation, one transfer unit faces the conveyor belt 21 to achieve the splicing and unwinding of the coiled material, while the other transfer unit is staggered with the conveyor belt 21, and the unwinding roller 32 in the transfer unit can be loaded and unloaded to achieve the timely replenishment of the coiled material. When the transfer unit facing the conveyor belt 21 is unwound, the translation drive 42 drives the translation seat to face the replenished transfer unit to the conveyor belt 21, which can save the replenishing time and further improve the overall production efficiency.

[0032] A double-sided adhesive tape production line comprises the above-mentioned conveying structure.

[0033] In this double-sided tape production line, the conveying structure separates part of the release paper from the next roll and directly connects it to the tail of the previous roll by bonding, so that the two rolls can be spliced ​​during the conveying process using the conveyor belt 21, effectively improving the conveying efficiency and making the overall production more efficient.

[0034] The preferred embodiments of the present invention are specifically described above, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A conveying structure, characterized in that: include: A winding device having a rotating winding roller (1); A conveying device, comprising a rotatable conveying belt (21), wherein a conveying surface movable toward the winding roller (1) is formed on the top side of the conveying belt (21); The transfer unit comprises a transfer frame (31), a reel (32), a transfer roller (33), a separation component, a cutting component and a crimping component. The reel (32) and the transfer roller (33) are respectively rotatably connected to the transfer frame (31). The crimping component has a pressure plate (341) that can move downward toward the conveying surface or upward away from the conveying surface. The separation component is located between the reel (32) and the transfer roller (33). The coil on the reel (32) can be unwound through the transfer roller (33) and guided to the lower side of the pressure plate (341). The separation component is used to separate the release paper on the coil, and the cutting component is used to cut the separated release paper.

2. A conveying structure according to claim 1, characterized in that: The separation assembly comprises a separation roller (351) and a feeding roller (352) which are respectively rotatably connected to the transfer frame (31); a first material transfer gap is formed between the separation roller (351) and the top side of the transfer roller (33); two feeding rollers (352) are arranged in the up-down direction; a second material transfer gap for feeding out release paper is formed between the two feeding rollers (352); and the roll unwound from the unwinding roller (32) passes through the first material transfer gap.

3. A conveying structure according to claim 1, characterized in that: A pressure roller (36) is rotatably connected to the transfer frame (31), and a third material transfer gap is formed between the pressure roller (36) and one side of the bottom of the transfer roller (33). The coiled material unwound from the unwinding roller (32) passes through the third material transfer gap and is guided to the lower side of the pressing plate (341).

4. A conveying structure according to claim 3, characterized in that: The transfer frame (31) is located above the pressure roller (36) and is connected to a guide plate (37), and the guide plate (37) is inclined from top to bottom in a direction close to the transfer roller (33).

5. A conveying structure according to claim 1, characterized in that: The cutting assembly comprises a cutting drive member (381) and a cutter (382); the cutting drive member (381) is connected to the transfer frame (31); the cutting drive member (381) drives the cutter (382); the cutting drive member (381) can drive the cutter (382) to move in a direction approaching or away from the transfer roller (33).

6. A conveying structure according to claim 5, characterized in that: A blade is provided on the side of the cutter (382) facing the transfer roller (33), and both ends of the blade are inclined in a direction away from the transfer roller (33) to the center.

7. A conveying structure according to claim 1, characterized in that: The crimping assembly includes a crimping drive member (342) connected to the intermediate transfer frame (31), the crimping drive member (342) drivingly connected to the pressing plate (341), the crimping drive member (342) can drive the pressing plate (341) to move up and down, the top side of the pressing plate (341) is connected to a first negative pressure source (343), the bottom side of the pressing plate (341) is provided with a plurality of first negative pressure holes, the first negative pressure source (343) is connected to the plurality of first negative pressure holes through pipelines.

8. A conveying structure according to claim 1, characterized in that: A negative pressure box (22) is provided in the conveying device, the negative pressure box (22) is connected to a second negative pressure source via a pipeline, a connecting hole is provided on the top side of the negative pressure box (22), and a plurality of second negative pressure holes are provided on the conveying belt (21).

9. A conveying structure according to claim 1, characterized in that: It also includes a base frame (41), the base frame (41) is connected to a translation drive member (42), the translation drive member (42) is drivingly connected to a translation seat, at least two transfer units are arranged on the translation seat, and the translation drive member (42) can drive the translation seat to reciprocate in the horizontal direction and make at least one of the transfer units face the conveyor belt (21).

10. A double-sided adhesive tape production line, characterized in that: Comprising the conveying structure according to any one of claims 1 to 9.

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