Film drawing device for plastic packaging film

Abstract

The utility model belongs to the technical field of plastic packaging equipment, and particularly relates to a plastic packaging film drawing device which comprises a rack, the front side face and the rear side face of the rack are rotationally connected with the ends of four transmission shafts at the same time through rolling bearings, every two of the four transmission shafts form a group, and the two groups of transmission shafts are in transmission connection with two conveying belts respectively. When a plastic packaging film is conveyed, the motor, the first chain wheel, the second chain wheel, the first gear, the second gear, the connecting shaft and the transmission shaft can be used for driving the conveying belts on the upper side and the lower side to rotate anticlockwise and clockwise respectively, and the two conveying belts adsorb the plastic packaging film through the electrified conductive adhesive tape when rotating. The two winding rollers drive the plastic packaging films on the two winding rollers to move rightwards between the two conveying belts to be conveyed, so that the plastic packaging films can be flatly laid on the conveying belts in the film drawing process through cooperation of the structure, the flatness of the plastic packaging films is kept, and the situation that the subsequent plastic packaging effect is affected due to folding of the plastic packaging films in the film drawing process is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic sealing equipment, and in particular relates to a film pulling device for plastic sealing film. Background Art

[0002] In order to maintain the stability of the packaging of some products after production and to prevent the packaging from being contaminated during transportation, a plastic sealing machine is usually used to seal the packaging after production.

[0003] When the laminator is working, a film pulling device is required to pull the plastic film on the film roll and send it into the laminator. However, most of the existing film pulling devices use the film roll to rotate to release the plastic film when performing the film pulling operation, and then use the gravity of the plastic film to make the plastic film fall naturally into the laminator. The above film pulling method can easily cause the plastic film to fold and affect the laminator effect. Utility Model Content

[0004] The utility model aims to provide a film-drawing device for a plastic sealing film, which can prevent the plastic sealing film from being folded during the film-drawing process to affect the subsequent plastic sealing effect.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A film-pulling device for plastic film, comprising a frame, the front and rear sides of the frame are rotatably connected to the ends of four transmission shafts through rolling bearings at the same time, the four transmission shafts are grouped in pairs and the two groups of transmission shafts are respectively connected to two conveyor belts, and the outer sides of the two conveyor belts are each provided with a group of conductive rubber strips;

[0007] The opposite ends of the two groups of conductive rubber strips are overlapped with the opposite ends of the two electrostatic generators respectively, and the opposite ends of the two groups of conductive rubber strips are overlapped with the opposite ends of the two electrostatic releasers respectively. A controller is fixedly arranged on the outer side of the frame.

[0008] The opposite ends of the two electrostatic generators are respectively fixedly connected to the front ends of the two fixing plates 2, and the rear ends of the two fixing plates 2 are fixedly connected to the inner side surface of the frame.

[0009] The opposite ends of the two electrostatic releasers are fixedly connected to the fixing plate 1, the rear end of the fixing plate 1 is fixedly connected to the inner side surface of the frame, and the two electrostatic generators are electrically connected to the controller.

[0010] The two conveyor belts are overlapped with two sections of plastic sealing films respectively, and the two sections of plastic sealing films are respectively rolled up on two winding rollers, and each of the winding rollers is sleeved with one end of two supporting rollers.

[0011] The rear ends of the two support rollers on the rear side are both fixedly connected to the inner side surface of the frame. The front ends of the two support rollers on the front side are respectively fixedly connected to the rear ends of two electric push rods. The front ends of the two electric push rods are both fixedly connected to the inner side surface of the frame. The two electric push rods are both electrically connected to the controller.

[0012] Both ends of the plastic sealing film are respectively lapped with two guide rollers. The two guide rollers are respectively arranged on the left side of the two conveyor belts. The ends of the two guide rollers are both rotationally connected to the frame through rolling bearings.

[0013] At the front ends of the four transmission shafts, sprockets one are fixedly arranged. The sprockets one on the upper side are connected by chain drive. The front end of the transmission shaft in the lower right is fixedly connected to the output shaft of the motor. The motor is fixedly connected to the frame through a mounting seat. The motor is electrically connected to the controller.

[0014] The sprockets one on the lower side are in transmission connection with the sprocket two through a chain. The sprocket two is fixedly arranged in the middle of the connecting shaft. The rear end of the connecting shaft is rotationally connected to the front side surface of the frame through a rolling bearing.

[0015] At the front end of the connecting shaft, a gear two is fixedly arranged. The gear two is meshed and connected with the gear one. The gear one is fixedly arranged at the front end of the transmission shaft in the upper right.

[0016] The technical effects achieved by the present utility model are as follows:

[0017] In the present utility model, conductive rubber strips are arranged on the conveyor belts, and an electrostatic generator and an electrostatic discharger are arranged to be in contact with the conductive rubber strips. When using the device to convey the plastic sealing film, the motor, sprockets one, sprocket two, gear one, gear two, connecting shaft and transmission shaft can be used to drive the upper and lower conveyor belts to rotate counterclockwise and clockwise respectively. When the two conveyor belts rotate, the charged conductive rubber strips adsorb the plastic sealing film, driving the plastic sealing films on the two winding rollers to move rightward between the two conveyor belts for conveying. When the conductive rubber strips move to the right end of the conveyor belt, they are in contact with the electrostatic discharger to eliminate static electricity, so that the upper plastic sealing film is separated from the upper conveyor belt and stacked with the lower plastic sealing film. At this time, the conveyor belts continue to drive the plastic sealing film to move rightward, so that the plastic sealing film moves to the right side of the conveyor belt and is connected to the subsequent plastic sealing mechanism. Thus, through the cooperation of the above structures, the plastic sealing film can be laid flat on the conveyor belt during the film pulling process to maintain the flatness of the plastic sealing film, and further avoid the folding of the plastic sealing film during the film pulling process, which affects the subsequent plastic sealing effect.

[0018] In the present utility model, the support roller is sleeved with the winding roller, and the front support roller is connected to the electric push rod, so as to facilitate the user to disassemble and replace the winding roller, effectively improving the convenience of operation and maintenance of the device. Description of the Drawings

[0019] Figure 1 is the front view structural schematic diagram of the present utility model;

[0020] Figure 2 is the front view sectional structural schematic diagram of the present utility model;

[0021] Figure 3 is the structural schematic diagram of the right view section of the winding roller in the present utility model;

[0022] Figure 4 is the structural schematic diagram of the connecting shaft in the present utility model.

[0023] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0024] 1. Frame; 2. Transmission shaft; 3. First sprocket; 4. Controller; 5. Motor; 6. Conveyor belt; 7. Conductive rubber strip; 8. Static eliminator; 9. First fixing plate; 10. Connecting shaft; 11. First gear; 12. Winding roller; 13. Plastic sealing film; 14. Static generator; 15. Second fixing plate; 16. Guide roller; 17. Support roller; 18. Electric push rod; 19. Second sprocket; 20. Second gear. Specific embodiments

[0025] In order to make the purpose and advantages of the present utility model clearer, the present utility model will be specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific implementation manners of the present utility model, and does not strictly limit the specific protection scope claimed by the present utility model.

[0026] As Figures 1-4 shown, a film pulling device for a plastic sealing film includes a frame 1. The front and rear sides of the frame 1 are simultaneously rotationally connected to the ends of four transmission shafts 2 through rolling bearings. The four transmission shafts 2 are divided into two groups, and the two groups of transmission shafts 2 are respectively in transmission connection with two conveyor belts 6. A group of conductive rubber strips 7 are arranged on the outer sides of the two conveyor belts 6;

[0027] The opposite ends of the two groups of conductive rubber strips 7 are respectively lapped with the opposite ends of two static generators 14, and the opposite ends of the two groups of conductive rubber strips 7 are respectively lapped with the opposite ends of two static eliminators 8. A controller 4 is fixedly arranged on the outer side of the frame 1. When the conveyor belt 6 rotates to drive the conductive rubber strip 7 to contact the static generator 14, the conductive rubber strip 7 is charged with static electricity, so as to adsorb and fix the plastic sealing film 13 by using the charged conductive rubber strip 7, so that the plastic sealing film 13 is laid flat on the conveyor belt 6, thereby avoiding the folding of the plastic sealing film 13 during the film pulling process and affecting the plastic sealing effect.

[0028] Further, the opposite ends of the two static generators 14 are respectively fixedly connected to the front ends of two second fixing plates 15, and the rear ends of the two second fixing plates 15 are both fixedly connected to the inner side of the frame 1.

[0029] Further, the opposite ends of the two static eliminators 8 are fixedly connected to the first fixing plate 9, and the rear end of the first fixing plate 9 is fixedly connected to the inner side surface of the frame 1. The two static generators 14 are both electrically connected to the controller 4. When the conductive rubber strip 7 moves to the right end of the conveyor belt 6 and contacts the static eliminator 8 to eliminate static electricity, the upper plastic sealing film 13 is separated from the upper conveyor belt 6 and stacked with the lower plastic sealing film 13. At this time, the conveyor belt 6 continues to drive the plastic sealing film 13 to move to the right, so that the plastic sealing film 13 moves to the right side of the conveyor belt 6 and enters the plastic sealing equipment for subsequent processing.

[0030] Further, the two conveyor belts 6 are respectively lapped with two sections of the plastic sealing film 13, and the two sections of the plastic sealing film 13 are respectively wound on the two winding rollers 12. Each winding roller 12 is sleeved at one end of the two supporting rollers 17.

[0031] Further, the rear ends of the two supporting rollers 17 at the rear side are both fixedly connected to the inner side surface of the frame 1. The front ends of the two supporting rollers 17 at the front side are respectively fixedly connected to the rear ends of the two electric push rods 18. The front ends of the two electric push rods 18 are both fixedly connected to the inner side surface of the frame 1. The two electric push rods 18 are both electrically connected to the controller 4. When installing and winding the roller 12, the user can sleeve the rear end of the winding roller 12 wound with the plastic sealing film 13 on the rear supporting roller 17 and keep the winding roller 12 in a horizontal state. At this time, the user can control the electric push rod 18 to extend through the controller 4 to drive the front supporting roller 17 to move backward and insert into the front end of the winding roller 12, so as to facilitate the user to disassemble and replace the winding roller 12 and effectively improve the convenience of operation and maintenance of the device.

[0032] Further, the two ends of the plastic sealing film 13 are also respectively lapped with the two guiding rollers 16. The two guiding rollers 16 are respectively arranged on the left side of the two conveyor belts 6. The ends of the two guiding rollers 16 are both rotatably connected to the frame 1 through rolling bearings.

[0033] Further, sprocket wheels one 3 are fixedly arranged at the front ends of the four transmission shafts 2. The two sprocket wheels one 3 on the upper side are connected by chain drive. The front end of the transmission shaft 2 in the lower right is fixedly connected to the output shaft of the motor 5. The motor 5 is fixedly connected to the frame 1 through the mounting seat. The motor 5 is electrically connected to the controller 4.

[0034] Further, the two sprocket wheels one 3 on the lower side are connected to the sprocket wheel two 19 through a chain. The sprocket wheel two 19 is fixedly arranged in the middle of the connecting shaft 10. The rear end of the connecting shaft 10 is rotatably connected to the front side surface of the frame 1 through a rolling bearing.

[0035] Further, a gear two 20 is fixedly arranged at the front end of the connecting shaft 10. The gear two 20 is meshed with the gear one 11. The gear one 11 is fixedly arranged at the front end of the transmission shaft 2 in the upper right.

[0036] The working principle of the utility model is as follows: When using this device for film pulling operation, the user can sleeve the rear end of the winding roller 12 wound with the plastic sealing film 13 on the rear support roller 17, and keep the winding roller 12 in a horizontal state. At this time, the user can control the electric push rod 18 to extend through the controller 4 to drive the front support roller 17 to move backward and insert into the front end of the winding roller 12. Then, the user controls the electrostatic generator 14 to work through the controller 4, and controls the motor 5 to work. By using the first sprocket 3, the second sprocket 19, the first gear 11, the second gear 20, the connecting shaft 10 and the transmission shaft 2, the upper and lower conveyor belts 6 are respectively driven to rotate counterclockwise and clockwise. When the conveyor belt 6 rotates and the conductive rubber strip 7 contacts the electrostatic generator 14, the conductive rubber strip 7 is charged with static electricity;

[0037] When the charged conductive rubber strip 7 rotates to the left end of the conveyor belt 6, the user pulls the end of the plastic sealing film 13 to move so that the plastic sealing film 13 passes through between the guide roller 16 and the conveyor belt 6. At this time, the charged conductive rubber strip 7 adsorbs the plastic sealing film 13 so that the plastic sealing film 13 is laid flat on the conveyor belt 6, and the conveyor belt 6 is used to convey the plastic sealing film 13. When the conductive rubber strip 7 moves to the right end of the conveyor belt 6, it contacts the static electricity release device 8 to eliminate static electricity, so that the upper plastic sealing film 13 is separated from the upper conveyor belt 6 and stacked with the lower plastic sealing film 13. At this time, the conveyor belt 6 is used to continuously drive the plastic sealing film 13 to move to the right, so that the plastic sealing film 13 moves to the right side of the conveyor belt 6 and enters the plastic sealing equipment for subsequent processing.

[0038] The above is only the preferred embodiment of the utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the utility model, several improvements and retouches can be made, and these improvements and retouches should also be regarded as the protection scope of the utility model. The structures, devices and operation methods not specifically described and explained in the utility model, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. A film pulling device for a plastic sealing film, comprising a frame (1), characterized in that: The front and rear sides of the frame (1) are rotatably connected to the ends of four transmission shafts (2) through rolling bearings. The four transmission shafts (2) are grouped in pairs, and the two groups of transmission shafts (2) are respectively drivingly connected to two conveyor belts (6). A group of conductive rubber strips (7) are arranged on the outer sides of the two conveyor belts (6); The opposite ends of the two groups of conductive rubber strips (7) are respectively lapped with the opposite ends of two electrostatic generators (14), and the opposite ends of the two groups of conductive rubber strips (7) are respectively lapped with the opposite ends of two electrostatic dischargers (8). A controller (4) is fixedly arranged on the outer side of the frame (1).

2. The film pulling device for a plastic-sealed film according to claim 1, characterized in that: The opposite ends of the two electrostatic generators (14) are respectively fixedly connected to the front ends of two fixing plates two (15), and the rear ends of the two fixing plates two (15) are both fixedly connected to the inner side of the frame (1).

3. The film pulling device for a plastic-sealed film according to claim 1, characterized in that: The opposite ends of the two electrostatic dischargers (8) are both fixedly connected to the fixing plate one (9). The rear end of the fixing plate one (9) is fixedly connected to the inner side of the frame (1). The two electrostatic generators (14) are both electrically connected to the controller (4).

4. The film pulling device for a plastic sealing film according to claim 1, characterized in that: The two conveyor belts (6) are respectively lapped with two sections of plastic sealing films (13). The two sections of plastic sealing films (13) are respectively wound on two winding rollers (12). Each winding roller (12) is sleeved on one end of two support rollers (17).

5. The film pulling device for a plastic-sealed film according to claim 4, characterized in that: The rear ends of the two support rollers (17) at the rear side are both fixedly connected to the inner side of the frame (1). The front ends of the two support rollers (17) at the front side are respectively fixedly connected to the rear ends of two electric push rods (18). The front ends of the two electric push rods (18) are both fixedly connected to the inner side of the frame (1). The two electric push rods (18) are both electrically connected to the controller (4).

6. The film pulling device for a plastic-sealed film according to claim 4, wherein: Both ends of the plastic sealing films (13) are also respectively lapped with two guide rollers (16). The two guide rollers (16) are respectively arranged on the left sides of the two conveyor belts (6). The ends of the two guide rollers (16) are rotatably connected to the frame (1) through rolling bearings.

7. The film pulling device for a plastic-sealed film according to claim 1, wherein: Sprockets one (3) are fixedly arranged at the front ends of the four transmission shafts (2). A chain drive connection is provided between the two upper sprockets one (3). The front end of the transmission shaft (2) at the lower right is fixedly connected to the output shaft of the motor (5). The motor (5) is fixedly connected to the frame (1) through a mounting seat. The motor (5) is electrically connected to the controller (4).

8. The film pulling device for a plastic-sealed film according to claim 7, wherein: The two lower sprockets one (3) are in chain drive connection with a sprocket two (19). The sprocket two (19) is fixedly arranged in the middle of the connecting shaft (10). The rear end of the connecting shaft (10) is rotatably connected to the front side of the frame (1) through a rolling bearing.

9. The film pulling device for a plastic-sealed film according to claim 8, wherein: A gear two (20) is fixedly arranged at the front end of the connecting shaft (10). The gear two (20) is meshed and connected with a gear one (11). The gear one (11) is fixedly arranged at the front end of the transmission shaft (2) at the upper right.

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