Automatic splicing and punching device for plastic film roll

Abstract

The utility model discloses an automatic plastic film roll splicing and punching device which comprises a rack base, a punching cutting table is arranged at the end of the rack base, a punching cutting die frame is arranged at the end of the punching cutting table, a cutting frame is arranged on one side of the punching cutting die frame, and the cutting frame is arranged on the other side of the punching cutting die frame. Through cooperative use of a positioning cutting groove, a cutting air cylinder, a strip-shaped tool apron, a cutting blade, a guide rod, a guide block and a positioning film pressing plate on the cutting frame, a punched film can be cut off after being rolled; a cutting air cylinder is used for pushing a strip-shaped tool apron and a cutting blade to move downwards to penetrate through a strip-shaped hole groove in a positioning film pressing plate to cut off a film on a punching cutting table, and when the strip-shaped tool apron moves downwards, the positioning film pressing plate is pushed to press and position the film through positioning and downward moving of a guide block on a guide rod. Therefore, the effect that the cutting blade presses down and fixes the thin film while cutting the thin film is achieved, and then the problem that the thin film is dragged and suspended in the cutting process to deform and wrinkle in the rolling process can be effectively prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of cigarette film punching and cutting, and in particular relates to a plastic film roll automatic splicing and punching device. Background Art

[0002] In the process of cigarette packaging, automation technology is widely used in all procedures to reduce labor intensity and labor costs. Therefore, various supporting auxiliary materials are required to cooperate with it to make auxiliary materials that can realize automation. Similarly, the film rolls produced by film manufacturers must also meet the needs of cigarette factories. When using film to package cigarette boxes, automatic splicing and replacement of film rolls can be achieved. When the existing film punching device is used, the motor is started to drive the roller to rotate, and the plastic film to be punched is close to the roller. It can be evenly punched under the action of the punching nails. It can also be combined with film blowing equipment to achieve online punching, thereby solving the problems existing in the prior art. However, since there are multiple punching needles connected to a roller, and the degree of wear of each punching needle is different, and each punching needle is fixed to the roller by welding, it is impossible to replace a punching needle alone, resulting in a high replacement cost.

[0003] To this end, a plastic film punching device with the announcement number "CN106891381A" includes a bracket and a roller, one end of the roller is axially fixed to the bracket and the end is connected to a motor, an annular groove is provided on the other end surface of the roller, a cylindrical electromagnet is inserted and fixed in the annular groove, a sealing plate capable of closing the notch of the annular groove is fixed on the roller, the sealing plate has a connecting part, the connecting part is axially fixed to the bracket; a battery for powering the electromagnet and a switch for controlling the connection or disconnection of the two are fixed on the connecting part; a plurality of connecting holes connected to the annular groove are provided on the outer wall of the roller, punching needles made of stainless steel are inserted in the connecting holes, one end of the punching needle is against the outer wall of the electromagnet, and the other end of the punching needle is solid cone-shaped and extends out of the connecting hole. The plastic film punching device has the advantage of convenient replacement of the punching needle.

[0004] However, for the above-mentioned plastic film punching device, although the rotation of the motor drives the roller to rotate, and the plastic film to be punched can be evenly punched and cut under the action of the punching needle when it is close to the roller, there are still the following obvious defects during use: However, during the cutting process, since there is no component to position the film cut, the film will be lifted up and pulled in the air after cutting, so that the film will be deformed and pulled, and wrinkles will appear during winding. Utility Model Content

[0005] The utility model aims to provide a device for automatically splicing and punching plastic film rolls to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for automatically splicing and punching plastic film rolls, comprising a frame seat, a punching and cutting table is provided at the end of the frame seat, a reeling side plate is provided on one side of the punching and cutting table and located at one side of the end of the frame seat, a punching die frame is provided at the end of the punching and cutting table, a cutting frame is provided on one side of the punching and cutting die frame, the cutting frame is arranged on one side of the end of the punching and cutting table, and a positioning cutting groove is provided on the inner side of the cutting frame at a position corresponding to the end of the punching and cutting table, a cutting cylinder is symmetrically provided at the top of the inner part of the cutting frame, a strip knife seat is horizontally fixed at the bottom of the piston rod of the cutting cylinder, a cutting blade for cutting the cigarette film is provided at the bottom of the strip knife seat, guide grooves are vertically provided on the inner side walls of the cutting frame, guide rods are vertically fixed inside the guide grooves, guide blocks are movably sleeved on the guide rods, a positioning film pressing plate is fixed between the guide blocks, a spring is penetrated at the upper end of the guide rod, and the spring is fixedly connected to the top of the guide groove and the end of the guide block.

[0007] Preferably, the punching knife die frame is installed in a groove provided at the end of the punching and cutting table, and three punching cylinders for punching holes in the cigarette film are provided at the top of the punching knife die frame, and a guide film-piercing groove is penetrated through the side of the punching knife die frame, and three hole grooves for positioning and punching holes in the cigarette film are equidistantly provided at the bottom end of the guide film-piercing groove, and the three punching knife rods can be pushed down by the punching cylinder to perform the punching operation.

[0008] Preferably, the piston rod of the punching cylinder is movable and penetrates to the inner upper end of the guide film-piercing groove, and a punching knife rod is fixed to the bottom end of the piston rod of the punching cylinder, and a positioning strip is fixed to the corresponding upper end of the inner part of the guide film-piercing groove, and the positioning strip is equidistantly provided with perforation grooves that are conducive to the penetration of the punching knife rod, thereby preventing the film from being lifted up by the punching knife rod, thereby playing a role in limiting the punching of the film.

[0009] Preferably, a manual three-way air valve is installed on one side of the punching and cutting table, and the manual three-way air valve is connected to the punching cylinder via a three-way pipe through a connected polyester hose, and the manual three-way air valve is connected to an external air compressor through the polyester hose. The manual three-way air valve can be manually controlled to make the punching cylinder and the cutting cylinder work, so as to cut and punch holes in the film.

[0010] Preferably, the unwinding side plate is fixed to one end side of the frame seat, and an unwinding shaft is provided on the upper end of one surface of the unwinding side plate, and an unwinding roller for unwinding the cigarette film is installed on the unwinding shaft, which is used to unwind the film roll at a uniform speed through the unwinding roller on the unwinding shaft.

[0011] Preferably, a mounting groove is provided on one side of the end of the punching and cutting table, and a supporting conveying roller for unwinding and feeding the cigarette film is provided inside the mounting groove, which plays a supporting role in conveying the film and avoids scratches and damage caused by the film contacting the side of the punching and cutting table.

[0012] The technical effects and advantages of the utility model: the automatic splicing and punching device for plastic film rolls, through the coordinated use of the positioning cutting groove, cutting cylinder, strip knife seat, cutting blade, guide rod, guide block and positioning film pressing plate on the cutting frame, can use the cutting cylinder to push the strip knife seat and the cutting blade downward to pass through the strip hole groove on the positioning film pressing plate to cut the film on the punching and cutting table after the punched film is rolled up, and at the same time the strip knife seat moves downward, pushes the positioning film pressing block to move downward on the guide rod to press and position the film, thereby achieving the effect of the cutting blade pressing down and fixing the film during cutting, thereby effectively preventing the film from being pulled in the air during cutting, causing deformation and wrinkles during rolling.

[0013] Through the coordinated use of the punching cylinder, the guide film-piercing groove, the hole groove, the punching knife rod, the positioning strip and the punching groove on the punching knife die frame, the film can be positioned through the guide film-piercing groove when punching holes, and the punching cylinder pushes the punching knife rod to pass through the perforation groove on the positioning strip to perform a punching operation on the positioned film. At the same time, when the punching cylinder drives the punching knife rod to retract, the positioning strip is set to limit the upward pulling of the film, so as to avoid the situation that the punching knife rod retracts and pulls the film up and deforms it, thereby further improving the quality of film punching, enhancing the stability of the film, and effectively preventing the film from being pulled up and deformed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the cutting frame of the utility model;

[0016] Figure 3 This is a schematic diagram of the punching knife die frame structure of the utility model;

[0017] Figure 4 For this utility model Figure 1 Enlarged structural diagram at A in the middle.

[0018] In the figure: 1. frame base; 2. punching and cutting table; 3. unwinding side plate; 4. punching knife die frame; 5. cutting frame; 6. positioning cutting groove; 7. cutting cylinder; 8. strip knife seat; 9. cutting blade; 10. guide groove; 11. guide rod; 12. guide block; 13. punching cylinder; 14. guide film-passing groove; 15. hole groove; 16. punching knife rod; 17. positioning strip plate; 18. manual three-way air valve; 19. unwinding shaft; 20. support conveying roller; 21. positioning film pressing plate. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-4 The utility model provides a technical solution: an automatic splicing and punching device for plastic film rolls, comprising a frame seat 1, a punching and cutting table 2 is provided at the end of the frame seat 1 for punching and cutting the film, a manual three-way air valve 18 is installed on one side of the punching and cutting table 2, and the punching cylinder 13 and the cutting cylinder 7 can be controlled. The manual three-way air valve 18 is connected to the punching cylinder 13 through a three-way pipe through a connected polyester hose, and the manual three-way air valve 18 is connected to an external air compressor through a polyester hose to ensure the normal operation of the film punching and cutting action, a side of the punching and cutting table 2 and a side of the end of the frame seat 1 are provided with an unwinding side plate 3, and an unwinding shaft 19 can be fixed on one side of the unwinding side plate 3, the unwinding side plate 3 is fixed on one end side of the frame seat 1, and an unwinding shaft 19 is provided on the upper end of one side of the unwinding side plate 3, and an unwinding roller for unwinding the cigarette film is installed on the unwinding shaft 19, which is used for unwinding the rolled film.

[0021] When processing the punching die frame 4, pay attention to the unwinding shaft 19 having a diameter of 120 mm to adapt to the winding film paper tube paper. A punching die frame 4 is provided at the end of the punching and cutting table 2. The punching die frame 4 is installed in a groove provided at the end of the punching and cutting table 2 to ensure the stability of the equipment during punching. The top of the punching die frame 4 is provided with three punching cylinders 13 for punching holes in the cigarette film, which can push the punching knife rod 16 to move up and down. A guide film-piercing groove 14 is penetrated on the side of the punching die frame 4 to position the film when punching holes and prevent deviation. Three hole grooves 15 for positioning and punching holes in the cigarette film are equidistantly provided at the bottom end of the guide film-piercing groove 14 to buffer the punching knife rod 16. The piston rod of the punching cylinder 13 movably penetrates to the inner upper end of the guide film-piercing groove 14.

[0022] A punching knife bar 16 is fixed to the bottom end of the piston rod of the punching cylinder 13 to realize the punching operation of the film. The punching knife bar 16 can punch a film with a thickness of 19-21um, and the diameter of the punching knife bar 16 is 15mm, the hole spacing is 85mm, and the width of the guide film-penetrating groove 14 is 280mm. A positioning strip plate 17 is fixed to the corresponding upper end of the inner part of the guide film-penetrating groove 14, and the positioning strip plate 17 is equidistantly provided with perforation grooves that are conducive to the penetration of the punching knife bar 16, which can position the punching knife bar 16 to prevent the vibration from causing the punching knife bar 16 to deviate. A cutting frame 5 is provided on one side of the punching knife die frame 4, and the cutting frame 5 is arranged on one side of the end of the punching cutting table 2, and the cutting frame 5 is formed by steel welding. A positioning cutting groove 6 is provided at the inner side of the cutting frame 5 corresponding to the position of the end of the punching cutting table 2, which plays a role in buffering and protecting the blade edge when the cutting blade 9 is cutting. The inner top of the cutting frame 5 is symmetrically provided with a cutting cylinder 7 to push the strip knife seat 8 downward.

[0023] A strip knife seat 8 is horizontally fixed to the bottom of the piston rod of the cutting cylinder 7, and a cutting blade 9 for cutting the cigarette film is provided at the bottom of the strip knife seat 8 for cutting the cigarette film. Guide grooves 10 are vertically provided on the inner side walls of the cutting frame 5, so that the two ends of the guide rod 11 can be fixed at the upper and lower ends of the guide groove 10. Guide rods 11 are vertically fixed inside the guide groove 10, which is conducive to the stable up and down sliding of the guide block 12. The guide rods 11 are movably sleeved with guide blocks 12, and a positioning film pressing plate 21 is fixed between the guide blocks 12, which is conducive to positioning and pressing during film cutting. A spring is penetrated at the upper end of the guide rod 11, and the spring is fixedly connected to the top of the guide groove 10 and the end of the guide block 12. An installation groove is provided on one side of the end of the punching and cutting table 2, and a support conveying roller 20 for supporting the unwinding and feeding of the cigarette film is provided inside the installation groove, which is used for supporting and conveying the film to avoid scratching with the edges and corners of the machine.

[0024] Specifically, when in use, the cutting cylinder 7 and the punching cylinder 13 are connected to the manual three-way air valve 18, and the manual three-way air valve 18 is connected to the external compressed air equipment through the air pipe. The film roll is passed through the unwinding roller set on the unwinding shaft 19, and the film is pulled out through the guide film-passing groove 14 and through the punching knife mold frame 4. At this time, the manual three-way air valve 18 is used to control the punching cylinder 13 through the handle rod, so that the punching cylinder 13 pushes the punching knife rod 16 through the positioning strip 17 to punch holes in the film. During the punching process, the positioning strip 17 can be used to limit the film to prevent the film from being pulled up by the punching knife rod 16 and causing deformation, effectively ensuring that the film is stable and does not deviate when punching. At the same time, a dark PVC adhesive sheet is attached to the punching position of the film so that the outer film is adhered to the inner film through the circular hole, thereby A film roll that can meet the needs of automatic splicing and replacement of film rolls in tobacco factories is produced. Then, the length of the film pulled out must exceed the positioning cutting groove 6. The handle rod is pulled to make the manual three-way air valve 18 control the cutting cylinder 7 to push the strip knife seat 8 downward, and the cutting blade 9 passes through the positioning film pressing plate 21. At the same time, the downward movement of the strip knife seat 8 is used to make the positioning film pressing plate 21 move up and down on the guide rod 11 through the guide blocks 12 connected at both ends to press the film down and position it. Then, the cutting blade 9 is used to cut the film along the positioning cutting groove 6. Finally, the manual three-way air valve 18 is pulled to make the cutting blade 9 move up, and the positioning film pressing plate 21 automatically moves up through the resilience of the spring, and the film can be pulled out.

[0025] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for automatically splicing and punching plastic film rolls, comprising a frame seat (1), a punching and cutting table (2) is provided at the end of the frame seat (1), a reeling side plate (3) is provided on one side of the punching and cutting table (2) and located at the end of the frame seat (1), a punching die frame (4) is provided at the end of the punching and cutting table (2), and a cutting frame (5) is provided on one side of the punching die frame (4), characterized in that: The cutting frame (5) is arranged on one side of the end of the punching and cutting table (2), and a positioning cutting groove (6) is provided on the inner side of the cutting frame (5) at a position corresponding to the end of the punching and cutting table (2). A cutting cylinder (7) is symmetrically provided at the top of the interior of the cutting frame (5). A strip knife seat (8) is horizontally fixed at the bottom of the piston rod of the cutting cylinder (7). A cutting blade (9) for cutting the cigarette film is provided at the bottom of the strip knife seat (8). Guide grooves (10) are vertically provided on the inner side walls of the cutting frame (5). Guide rods (11) are vertically fixed inside the guide grooves (10). Guide blocks (12) are movably sleeved on the guide rods (11). Positioning film pressing plates (21) are fixed between the guide blocks (12). A spring is passed through the upper end of the guide rod (11), and the spring is fixedly connected to the top of the guide groove (10) and the end of the guide block (12).

2. The automatic splicing and punching device for plastic film rolls according to claim 1, characterized in that: The punching die frame (4) is installed in a groove provided at the end of the punching and cutting table (2); the top of the punching die frame (4) is provided with three punching cylinders (13) for punching holes in the cigarette film; a guide film-piercing groove (14) is provided through the side of the punching die frame (4); and three hole grooves (15) for positioning and punching holes in the cigarette film are equidistantly provided at the bottom end of the guide film-piercing groove (14).

3. The automatic splicing and punching device for plastic film rolls according to claim 2, characterized in that: The piston rod of the punching cylinder (13) is movable and penetrates to the inner upper end of the guide film-piercing groove (14), and a punching knife rod (16) is fixed to the bottom end of the piston rod of the punching cylinder (13). A positioning strip (17) is fixed to the corresponding upper end of the inner part of the guide film-piercing groove (14), and perforation grooves are equidistantly arranged on the positioning strip (17) to facilitate the penetration of the punching knife rod (16).

4. The automatic splicing and punching device for plastic film rolls according to claim 1, characterized in that: A manual three-way air valve (18) is installed on one side of the punching and cutting table (2), and the manual three-way air valve (18) is connected to the punching cylinder (13) by a three-way pipe through a connected polyester hose, and the manual three-way air valve (18) is connected to an external compressed air device through the polyester hose.

5. The automatic splicing and punching device for plastic film rolls according to claim 1, characterized in that: The unwinding side plate (3) is fixed to one end side of the frame seat (1), and an unwinding shaft (19) is provided at the upper end of one surface of the unwinding side plate (3), and an unwinding roller for unwinding the cigarette film is installed on the unwinding shaft (19).

6. The automatic splicing and punching device for plastic film rolls according to claim 1, characterized in that: A mounting groove is provided on one side of the end of the punching and cutting table (2), and a supporting conveying roller (20) for supporting the unwinding and feeding of the cigarette film is provided inside the mounting groove.

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