Multifunctional film laminating device for plates

Abstract

The utility model belongs to the technical field of children furniture manufacturing, and particularly relates to a multifunctional plate film laminating device which comprises a film laminating device, the film laminating device comprises a C-shaped arm assembly, a lifting supporting plate base, a pressing plate assembly, a film propeller, a plate propeller, a plate discharger and a control box, and a PLC is arranged in the control box. The PLC is used for driving the plate propeller to move and place a plate to the position above the lifting supporting plate base, driving the film propeller to transfer a film to the surface of the plate, driving the pressing plate assembly to conduct hot pressing on the plate and the film, and driving the plate discharger to move out the plate. The device is reasonable in design, simple in structure and convenient to machine, on one hand, manpower and time cost can be effectively reduced, production and machining benefits in a plant are guaranteed, on the other hand, the production and machining work progress can be effectively improved, the attaching effect of a film material on a plate is guaranteed, the workpiece forming quality is guaranteed, and the use requirement is met.

Description

Technical Field

[0001] The utility model belongs to the technical field of children's furniture manufacturing, and in particular relates to a multifunctional film laminating device for a plate. Background Art

[0002] For the boards used to make children's furniture, in addition to being formaldehyde-free, they also need to be multifunctional so that they can meet the preparation and processing requirements for furniture for people to use.

[0003] At present, in the existing market, except for artificial wood, there are not many categories of functional boards. In order to adapt to the living needs of the healthy, green and intelligent era, the furniture material industry urgently needs functional material prefabricated products such as film and other component materials. At the same time, how to bond the already produced multifunctional film materials to the board and quickly enter the furniture manufacturing link is also particularly critical. The conventional operation in the existing technology is: first manually place the board on the processing table, then manually lay the film material on the board, use a pressing device to bond the two, and then manually export the formed workpiece to provide convenience for subsequent production. Unfavorable conditions, the above processing method not only requires a lot of manpower costs, but also the manual laying of membrane materials will affect its bonding effect to a certain extent, thereby affecting the workpiece molding quality, and cannot meet the subsequent production and processing needs of the workpiece. For this reason, we provide a multifunctional membrane bonding device for plates with reasonable design, simple structure, and convenient processing. On the one hand, it can effectively reduce manpower and time costs and ensure the production and processing efficiency in the factory. On the other hand, it can effectively improve the production and processing progress, and ensure the bonding effect of the membrane material on the plate, ensure the workpiece molding quality, and meet the use needs. Utility Model Content

[0004] In response to the technical problems existing in the above-mentioned workpiece bonding process, the utility model proposes a multifunctional film bonding device for plates, which has a reasonable design, simple structure, and convenient processing. On the one hand, it can effectively reduce manpower and time costs and ensure the production and processing efficiency in the factory. On the other hand, it can effectively improve the production and processing progress, ensure the bonding effect of the film material on the plate, ensure the workpiece molding quality, and meet the use requirements.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is a multifunctional film laminating device for sheets, including a film laminating device, wherein the film laminating device includes a C-arm assembly, a lifting pallet base, a pressing plate assembly, a film material pusher, a panel pusher, a panel unloader and a control box, wherein a PLC controller is arranged in the control box, and the PLC controller drives the panel pusher to move the sheet to the top of the lifting pallet base, and drives the film material pusher to move the film material to the surface of the sheet, drives the pressing plate assembly to hot-press the sheet and the film material, and drives the panel unloader to move out the sheet.

[0006] Preferably, the lifting pallet base includes a support plate formed by casting and having a flat surface, a lifting cylinder A for driving the support plate to move up and down in the vertical direction, a pneumatic solenoid valve A for controlling the operation of the cylinder lifting A, a guide column A for supporting the support plate and limiting its vertical lifting direction, a guide bearing A established in the support plate and sleeved on the outer periphery of the guide column A, and a travel switch for safety protection during the lifting process of the support plate.

[0007] Preferably, the pressing plate assembly is arranged directly above the lifting support plate base, and the pressing plate assembly includes a pressing plate formed by casting and having a smooth surface, a guide column B which limits the lifting direction of the pressing plate, a guide bearing B which facilitates the smooth operation of the pressing plate, an electric heating tube and a temperature controller. A plurality of circular holes are opened at the bottom of the pressing plate, and the electric heating tubes are inserted into the circular holes. The temperature controller is a needle type temperature controller and is arranged inside the pressing plate.

[0008] Preferably, the guide column A and the guide column B are coaxially arranged in two upper and lower sections, wherein the guide column A is fastened to the ground and longitudinally distributed at the corners of the lifting plate base, and the guide column B is longitudinally distributed at the corners of the pressure plate and connected to the upper end of the guide column A.

[0009] Preferably, the C-arm assembly includes an arm seat, a C-arm, a guide block, a lifting cylinder C, and a pneumatic solenoid valve C. The lower end of the arm seat is fastened to the ground, and a longitudinally arranged I-shaped groove is provided in its front end surface. The guide block includes a protrusion A and a protrusion B designed in an I-shape, and is slidably connected to the wall seat and is respectively connected to the rear sides of the support plate and the pressure plate.

[0010] Preferably, the pressing plate and the arm seat are connected by a C-arm.

[0011] Preferably, the lifting cylinder C is arranged above the back of the C-arm and the pressing plate to provide driving power for the pressing plate.

[0012] Preferably, the panel pusher is arranged in front of the lifting plate base, and the panel pusher includes a roller line D, a pushing cylinder D, a pneumatic suction cup D, and a pneumatic solenoid valve D. The pneumatic suction cup D is arranged on the telescopic head of the pushing cylinder D, and a first driving motor D for driving the pushing cylinder D to rotate in the longitudinal direction is arranged on one side of the installation position of the pushing cylinder D. The pushing cylinder D is hingedly arranged on the outside of the roller line D, and a second driving motor D for driving the pushing cylinder D to rotate circumferentially is arranged below the pushing cylinder D.

[0013] Preferably, the film material pusher is set up on one side of the lifting pallet base, and the film material pusher includes a roller line F, a film material cylinder F, a pneumatic suction cup F, and a pneumatic solenoid valve F. The pneumatic suction cup F is arranged on the telescopic head of the film material cylinder F. A first driving motor F for driving the film material cylinder F to rotate in the longitudinal direction is arranged on one side of the installation position of the film material cylinder F. The film material cylinder F is hingedly arranged on the outside of the roller line F. A second driving motor F for driving the film material cylinder F to rotate circumferentially is arranged below the film material cylinder F.

[0014] Preferably, a plate unloader is arranged on the other side of the lifting pallet base, and the plate unloader includes a roller line E, a unloading cylinder E, a pneumatic suction cup E and a pneumatic solenoid valve E. The pneumatic suction cup E is arranged on the telescopic head of the unloading cylinder E. A first driving motor E for driving the unloading cylinder E to rotate in the longitudinal direction is arranged on one side of the installation position of the unloading cylinder E. The unloading cylinder E is hingedly arranged on the outside of the roller line E. A second driving motor E for driving the unloading cylinder E to rotate circumferentially is arranged below the unloading cylinder E.

[0015] Compared with the prior art, the advantages and positive effects of the utility model are:

[0016] 1. The utility model provides a multifunctional film laminating device for plates. The controller in the film laminating device drives the plate pusher to move the plate onto the top of the pallet base, drives the film material pusher to move the film material to the surface of the plate, drives the pressing plate assembly to hot-press the multifunctional film material, and drives the plate unloader to send the plate away, completing the whole process of intelligent and rapid laminating of the film material and the plate, producing fire-proof, anti-aging, heat-resistant, negative ion-releasing, and antibacterial functional plates for the furniture material industry, providing a new intelligent and efficient solution; the device is reasonably designed, simple in structure, and easy to process. On the one hand, it can effectively reduce the manpower and time costs and ensure the production and processing benefits in the factory. On the other hand, it can effectively improve the production and processing progress, and ensure the laminating effect of the film material on the plate, ensure the molding quality of the workpiece, and meet the use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor.

[0018] Figure 1 It is a structural schematic diagram of a multifunctional film laminating device for a plate;

[0019] Figure 2 is a structural schematic diagram of a bonding device;

[0020] In the above figures, 1, film sticking device; 2, C-arm assembly; 21, arm seat; 211, I-shaped groove; 22, C-arm; 23, bump A; 24, bump B; 3, lifting support base; 31, support plate; 32, lifting cylinder A; 33, guide column A; 4, pressing plate assembly; 41, pressing plate; 42, guide column B; 5, film material pusher; 51, roller line F; 52, film material cylinder F; 53, Pneumatic suction cup F; 54, first drive motor F; 55, second drive motor F; 6, plate pusher; 61, roller line D; 62, push cylinder D; 63, pneumatic suction cup D; 64, first drive motor D; 65, second drive motor D; 7, plate unloader; 71, roller line E; 72, unloading cylinder E; 73, pneumatic suction cup E; 74, first drive motor E; 75, second drive motor E. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] Examples, such as Figure 1-2 As shown, a multifunctional film laminating device for a sheet material comprises a film laminating device 1, and the film laminating device 1 comprises a C-arm assembly 2, a lifting pallet base 3, a pressing plate assembly 4, a film material pusher 5, a plate pusher 6, a plate unloader and a control box. A PLC controller is arranged in the control box, and the plate pusher 6 is driven by the PLC controller to move the sheet material to the top of the lifting pallet base 3, and the film material pusher 5 is driven to move the film material to the surface of the sheet material, and the pressing plate assembly 4 is driven to hot-press the sheet material and the film material, and the plate unloader is driven to move out the sheet material, thereby completing the convenient loading of the sheet material and the laminating process of the film material and the sheet material, meeting the production and processing requirements.

[0024] In order to achieve effective support for the workpiece and complete the processing of the membrane material, the lifting pallet base 3 includes a support plate 31 formed by casting and with a flat surface, a lifting cylinder A32 for driving the support plate 31 to move up and down in the vertical direction, a pneumatic solenoid valve A for controlling the operation of the cylinder lifting A, a guide column A33 for supporting the support plate 31 and limiting its vertical lifting direction, a guide bearing A established in the support plate 31 and sleeved on the outer periphery of the guide column A33, and a travel switch for safety protection during the lifting process of the support plate 31. In this way, the lifting pallet base 3 can be raised or lowered smoothly, and the travel switch can ensure its safe rise or fall.

[0025] In order to effectively achieve the bonding between the sheet material and the membrane material, the pressing plate assembly 4 is arranged directly above the lifting pallet base 3. The purpose of arranging the pressing plate assembly 4 is to facilitate placing the multifunctional membrane material on the sheet material on the lifting pallet base 3, and to carry out corresponding heat bonding and pressurization work to ensure that the multifunctional membrane material is not cracked after being bonded to the sheet material; the pressing plate assembly 4 includes a pressing plate 41 formed by casting and with a smooth surface, a guide column B42 that limits the lifting direction of the pressing plate 41, a guide bearing B that facilitates the smooth operation of the pressing plate 41, an electric heating tube and a temperature controller. A plurality of circular holes are opened at the bottom of the pressing plate 41, and the electric heating tubes are inserted into the circular holes. In order to ensure that the heat bonding temperature is stable at the process specified value, the temperature controller is a needle type temperature controller and is arranged inside the pressing plate 41. Its function is to disconnect when the temperature is stable, or to reset the heating at a low temperature, so as to fully guarantee the progress of production and processing and meet the use requirements.

[0026] In order to further improve the rationality of the establishment of the device, on the one hand, in order to ensure that the lifting pallet base 3 rises to the position to be bonded, or to ensure the action of descending to remove the completed workpiece or place the plate or film to be bonded, the guide column A33 is fastened to the ground and longitudinally distributed at the corners of the lifting pallet base 3, and passes through the guide bearings established in the support plate 31 to ensure the smoothness of the operation of the equipment components; further, the guide column B42 is longitudinally distributed at the corners of the pressure plate 41, and is connected to the upper end of the guide column A33, and passes through the guide bearings established in the pressure plate 41, which provides convenient conditions for the pressing plate assembly 4 to descend to the top of the lifting pallet base 3, ensuring the use function, and the guide column A33 and the guide column B42 are coaxially established in two upper and lower sections, which ensures the stability of the connection between the equipment components and guarantees the use requirements.

[0027] In order to ensure that the pressing plate assembly 4 can be easily raised after being lowered or pressing, this action is achieved by setting up the C-arm assembly 2. Specifically, the C-arm assembly 2 includes an arm seat 21, a C-arm 22, a guide block, a lifting cylinder C, and a pneumatic solenoid valve C. The lower end of the arm seat 21 is fastened to the ground, and a longitudinally arranged I-shaped groove is provided in its front end surface. Of course, an I-shaped groove is also longitudinally provided at the rear of the C-arm 22. The guide block includes an I-shaped protrusion A23 and a protrusion B24, which are slidably connected to the wall seat and are respectively connected to the rear sides of the support plate 31 and the pressing plate 41. One side of the protrusion A23 is connected to the arm seat 21, and the other side is It is connected to the support plate 31 to ensure the convenience of the support plate 31 in the vertical lifting and lowering adjustment. The protrusion B24 is respectively connected to the arm seat 21 and the pressure plate 41. Furthermore, the pressure plate 41 and the arm seat 21 are connected by the C-arm 22. Of course, a protrusion B24 is also provided on one side of the C-arm 22 to connect it with the arm seat 21 to ensure that it can be synchronously lifted, moved and adjusted in the vertical direction with the pressure plate 41 to meet the use requirements; in addition, the lifting cylinder C is arranged above the back of the C-arm 22 and the pressure plate 41 to provide driving power for the pressure plate 41. Of course, its output end is connected to the guide block to ensure the effective transmission of power.

[0028] In order to effectively complete the loading of the plate, the plate pusher 6 is arranged in front of the lifting plate base 3. The plate pusher 6 includes a roller line D61, a pushing cylinder D62, a pneumatic suction cup D63, and a pneumatic solenoid valve D. The pneumatic suction cup D63 is arranged on the telescopic head of the pushing cylinder D62. A first driving motor D64 for driving the pushing cylinder D62 to rotate in the longitudinal direction is arranged on one side of the installation position of the pushing cylinder D62. The pushing cylinder D62 is hingedly arranged on the outside of the roller line D61 and is located at the pushing cylinder. A second driving motor D65 is provided below D62 for driving the pushing cylinder D62 to rotate in a circumferential direction. Specifically, when the lifting and lowering support base 3 has removed all the workpieces, the pneumatic suction cup D63 on the plate pusher 6 sucks the new plate through vacuum. Under the thrust of the pushing cylinder D62, the plate is pushed along the roller line D61 and moved into the lifting and lowering support base 3. When the vacuum force disappears, the pneumatic suction cup D63 releases the adsorbed plate, and the pushing cylinder D62 contracts to complete this process. In order to realize the convenient loading of the plate, the established As for the first drive motor D64, its function is to provide driving power for the push cylinder D62 and make it rotate in the vertical direction, providing convenient conditions for the pneumatic suction cup D63 to approach the workpiece. As for the push cylinder D62 set up, it is set up in two rows and located on both sides of the workpiece. As for the movement of the plate, the first drive motor D64 on the same side performs synchronous action to make the push cylinder D62 rotate and ensure that the pneumatic suction cup D63 absorbs the workpiece, and then controls the second drive motor D65 to run, driving the above-mentioned equipment (i.e., the push cylinder D62, the first drive motor D64, etc.) to rotate synchronously in the circumferential direction, especially toward the input direction of the plate. When the workpiece on this side rotates to the maximum distance, the first drive motor D64, the second drive motor D65 and the push cylinder D62 on the other side repeat the above work and also transport the plate a certain distance. This reciprocating process is carried out by using the equipment located on both sides of the roller line D61 to alternately operate, thereby completing the convenient loading of the plate, reducing labor costs, ensuring the work progress, and meeting the use requirements.

[0029] In order to effectively complete the loading of the film material workpiece, the film material pusher 5 is set on one side of the lifting pallet base 3. The film material pusher 5 includes a roller line F51, a film material cylinder F52, a pneumatic suction cup F53, a pneumatic suction cup F53, and a pneumatic solenoid valve F. The pneumatic suction cup F53 is arranged on the telescopic head of the film material cylinder F52. A first driving motor F54 for driving the film material cylinder F52 to rotate in the longitudinal direction is arranged on one side of the installation position of the film material cylinder F52. The film material cylinder F52 is hingedly arranged on the outside of the roller line F51. A pneumatic motor F54 for driving the film material cylinder F52 to rotate in the circumferential direction is arranged below the film material cylinder F52. The second drive motor F55 is driven. Specifically, when the controller instructs the film material pusher 5 to run, the pneumatic solenoid valve F works and controls the film material cylinder F52 to extend. At the same time, the pneumatic suction cup F53 absorbs the film material, and under the push of the film material cylinder F52, it moves along the roller line F51. The film material is moved to the new plate to complete this process. The specific movement process of the film material refers to the movement of the plate. The functions of the first drive motor F54 and the second drive motor F are the same as those of the first drive motor D64 and the first drive motor D64, which ensures the stability of workpiece clamping and the convenience of loading, and fully meets the needs of production and processing.

[0030] In order to effectively complete the removal of the processed plates, the plate unloader 7 is arranged on the other side of the lifting pallet base 3. The plate unloader 7 includes a roller line E71, a discharge cylinder E72, a pneumatic suction cup E73 and a pneumatic solenoid valve E. The pneumatic suction cup E73 is arranged on the telescopic head of the discharge cylinder E. A first drive motor E74 for driving the discharge cylinder E to rotate in the longitudinal direction is arranged on one side of the installation position of the discharge cylinder E. The discharge cylinder E is hingedly arranged on the outside of the roller line E71. A second drive motor E75 for driving the discharge cylinder E to rotate circumferentially is arranged below the discharge cylinder E. Specifically, when the film material of the plate is pasted, the controller instructs the unloading cylinder E72 to extend and the pneumatic suction cup to rotate. E73 sucks the finished panel, and under the thrust of the unloading cylinder E72, the finished panel is moved from the lifting pallet base 3 to the roller line E71, and is manually moved off the line to other transportation tools for export, which greatly reduces the labor cost. In addition, for the process of removing the workpiece from the lifting pallet base 3, the operation method is roughly the same as the process of placing the plate. The difference is that the initial state of the unloading cylinder E is inclined, that is, the unloading cylinder E in the inclined state is driven to a horizontal state by the cooperation of the first drive motor E74 and the second drive motor E75 to complete the material removal over a distance. The left and right side equipments operate alternately and reciprocate in this way, so as to facilitate the removal of the processed workpiece, which greatly improves the functionality of the device.

[0031] In the above process: the controller in the film laminating device 1 drives the plate pusher 6 to move the plate onto the top of the pallet base, drives the film material pusher 5 to move the film material to the surface of the plate, drives the pressing plate assembly 4 to hot-press the multifunctional film material, and drives the plate unloader to send the plate away, completing the whole process of intelligent and rapid lamination of the film material and the plate, producing fire-proof, anti-aging, heat-resistant, negative ion-releasing, and antibacterial functional plates for the furniture material industry, providing a new intelligent and efficient solution; the device is reasonably designed, simple in structure, and easy to process. On the one hand, it can effectively reduce manpower and time costs and ensure the production and processing benefits in the factory. On the other hand, it can effectively improve the production and processing progress, and ensure the lamination effect of the film material on the plate, ensure the molding quality of the workpiece, and meet the use requirements.

[0032] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A multifunctional film laminating device for a plate, comprising a film laminating device, characterized in that: The film pasting device includes a C-arm assembly, a lifting pallet base, a pressing plate assembly, a film material pusher, a panel pusher, a panel unloader and a control box. A PLC controller is arranged in the control box. The PLC controller drives the panel pusher to move the panel to the top of the lifting pallet base, drives the film material pusher to move the film material to the surface of the panel, drives the pressing plate assembly to hot-press the panel and the film material, and drives the panel unloader to move the panel out.

2. A multifunctional film laminating device for plates according to claim 1, characterized in that: The lifting support plate base includes a support plate formed by casting and having a flat surface, a lifting cylinder A for driving the support plate to move up and down in the vertical direction, a pneumatic solenoid valve A for controlling the operation of the cylinder lifting A, a guide column A for supporting the support plate and limiting its vertical lifting direction, a guide bearing A established in the support plate and sleeved on the outer periphery of the guide column A, and a travel switch for safety protection during the lifting process of the support plate.

3. A multifunctional film laminating device for plates according to claim 2, characterized in that: The pressing plate assembly is arranged directly above the lifting support plate base, and the pressing plate assembly includes a pressing plate formed by casting and having a flat surface, a guide column B which limits the lifting direction of the pressing plate, a guide bearing B which facilitates the smooth operation of the pressing plate, an electric heating tube and a temperature controller. A plurality of circular holes are opened at the bottom of the pressing plate, and the electric heating tubes are inserted into the circular holes. The temperature controller is a needle type temperature controller and is arranged inside the pressing plate.

4. The multifunctional film laminating device for plates according to claim 3, characterized in that: The guide column A and the guide column B are set up in two coaxial upper and lower sections, wherein the guide column A is fastened to the ground and longitudinally distributed at the corners of the lifting support plate base, and the guide column B is longitudinally distributed at the corners of the pressure plate and connected to the upper end of the guide column A.

5. The multifunctional film laminating device for plates according to claim 4, characterized in that: The C-arm assembly includes an arm seat, a C-arm, a guide block, a lifting cylinder C, and a pneumatic solenoid valve C. The lower end of the arm seat is fastened to the ground, and a longitudinally arranged I-shaped groove is provided in its front end surface. The guide block includes a protrusion A and a protrusion B designed in an I-shape, and is slidably connected to the wall seat and is respectively connected to the rear sides of the support plate and the pressure plate.

6. The multifunctional film laminating device for plates according to claim 5, characterized in that: The pressing plate and the arm seat are connected by a C-shaped arm.

7. The multifunctional film laminating device for plates according to claim 5, characterized in that: The lifting cylinder C is arranged above the back of the C-arm and the pressing plate to provide driving power for the pressing plate.

8. The multifunctional film laminating device for plates according to claim 7, characterized in that: The panel pusher is arranged in front of the lifting plate base, and the panel pusher includes a roller line D, a pushing cylinder D, a pneumatic suction cup D, and a pneumatic solenoid valve D. The pneumatic suction cup D is arranged on the telescopic head of the pushing cylinder D. A first driving motor D for driving the pushing cylinder D to rotate in the longitudinal direction is arranged on one side of the installation position of the pushing cylinder D. The pushing cylinder D is hingedly arranged on the outside of the roller line D. A second driving motor D for driving the pushing cylinder D to rotate circumferentially is arranged below the pushing cylinder D.

9. The multifunctional film laminating device for plates according to claim 8, characterized in that: The film material pusher is set up on one side of the lifting pallet base, and the film material pusher includes a roller line F, a film material cylinder F, a pneumatic suction cup F, and a pneumatic solenoid valve F. The pneumatic suction cup F is arranged on the telescopic head of the film material cylinder F. A first driving motor F for driving the film material cylinder F to rotate in the longitudinal direction is arranged on one side of the installation position of the film material cylinder F. The film material cylinder F is hingedly arranged on the outside of the roller line F. A second driving motor F for driving the film material cylinder F to rotate circumferentially is arranged below the film material cylinder F.

10. The multifunctional film laminating device for plates according to claim 9, characterized in that: The plate unloader is arranged on the other side of the lifting pallet base, and the plate unloader includes a roller line E, a unloading cylinder E, a pneumatic suction cup E and a pneumatic solenoid valve E. The pneumatic suction cup E is arranged on the telescopic head of the unloading cylinder E. A first driving motor E for driving the unloading cylinder E to rotate in the longitudinal direction is arranged on one side of the installation position of the unloading cylinder E. The unloading cylinder E is hingedly arranged on the outside of the roller line E. A second driving motor E for driving the unloading cylinder E to rotate circumferentially is arranged below the unloading cylinder E.

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