Machine wrapping film clamping and cutting device

Abstract

The utility model relates to the field of wrapping films, and discloses a wrapping film clamping and cutting device for a machine, which comprises a platform and a knife rest, the left side of the top end of the platform is fixedly connected with a film roller, the left side of the platform is fixedly connected with a stand column, an inner groove is arranged in the stand column, and a linear screw is movably assembled in the inner groove. The linear screw rod is sleeved with a threaded sleeve, the right side of the threaded sleeve is fixedly connected with a wheel seat, and the wheel seat is movably connected with a film clamping wheel. According to the winding film clamping and cutting device for the machine, the lifting motor is arranged, before film cutting, the lifting motor drives the linear screw to rotate, the wheel base is driven to descend through the threaded sleeve, the film clamping wheel abuts against the outer portion of a winding film roll outside the film roller, and after the film cutter cuts the uppermost film roll, the threaded sleeve descends by a certain distance to drive the film clamping wheel to descend; and the clamping film is adjusted through automatic lifting, the cutting stability is guaranteed, and the problem that the cutting stability is poor is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of winding films, in particular to a film clamping and cutting device for machine-use winding films. Background Technique

[0002] Winding films are mainly used for bundling, fixing and protecting products. In the production process of winding films, film cutting is a crucial link. The rolls of machine-use winding films are usually of large specifications, and during the production process, they need to be wound and cut into specified lengths to ensure that the winding films can meet the requirements of different products in subsequent packaging processes.

[0003] At present, the commonly used film cutting devices for machine-use winding films on the market mainly rely on fixed cutting knives to complete cutting. However, during the cutting process, these devices often do not have movable film clamping components and cannot effectively adjust according to the changes in the size and position of the film rolls. When the cutting knife cuts at a high speed, it is easy to cause the film roll to be unstable, resulting in the deviation of the film roll position and inaccurate cutting position. Due to the lack of cooperation of the film clamping component, it is easy to produce burrs during the cutting process and the stability is poor.

[0004] Therefore, a film clamping and cutting device for machine-use winding films is needed to solve the above technical defects. Content of the Utility Model

[0005] The purpose of the utility model is to provide a film clamping and cutting device for machine-use winding films to solve the problem of poor cutting stability proposed in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A film clamping and cutting device for machine-use winding films, including a platform and a tool rest. A film roll is fixedly connected to the left side of the top of the platform. A column is fixedly connected to the left side of the platform. An inner groove is opened in the column. A linear screw rod is movably assembled in the inner groove. A threaded sleeve is sleeved outside the linear screw rod. A wheel seat is fixedly connected to the right side of the threaded sleeve. A film clamping wheel is movably connected at the wheel seat. A lifting motor is installed at the top of the column. The output shaft of the lifting motor is fixedly connected to the linear screw rod.

[0007] Preferably, the film clamping wheel and the film roll are in the same plane in the vertical direction.

[0008] Preferably, a set of guide rods are respectively fixed on both sides of the inner wall of the inner groove. Sliding sleeves are respectively welded at the four corners of the threaded sleeve. The sliding sleeves are sleeved outside the guide rods and slide.

[0009] Preferably, a lifting groove is provided on the right side inside the platform. A tool rest is provided above the lifting groove. A fixed seat is fixedly connected to the top end and inside of the tool rest. A moving motor is fixedly connected to the rear end of the fixed seat. A gear is fixedly sleeved on the output shaft of the moving motor. A tooth rail is movably assembled at the top end and inside of the tool rest. The gear and the tooth rail are meshed and connected. A chassis is fixedly connected to the right side of the bottom end of the platform.

[0010] Preferably, a tool shaft is movably assembled between the tooth rails. A film cutting knife is fixedly assembled at the middle position of the tool shaft. A tool disc motor is installed at the top end of the tooth rail. The output shaft of the tool disc motor is fixedly connected to the tool shaft.

[0011] Preferably, the lifting groove is located below the tool rest, and the size of the lifting groove is larger than the length of the tool rest.

[0012] Preferably, a cylinder is fixedly connected to the middle position of the bottom end of the chassis. A piston rod is provided at the output end of the cylinder. The piston rod penetrates upward through the lifting groove and is fixedly connected to the bottom end of the tool rest.

[0013] Preferably, a set of lifting rods are fixedly connected to both sides of the bottom end of the tool rest. Sleeve rods are respectively fixed to both sides of the bottom end of the chassis. The lifting rods penetrate through the sleeve rods.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: The winding film clamping and cutting device of this machine not only realizes the lifting adjustment of film clamping to ensure the stability of cutting, realizes the accuracy of the cutting section, makes the slitting more uniform, but also realizes the operation without manual operation, and the cutting is more efficient and safe;

[0015] (1) By providing a lifting motor, a linear screw rod, a threaded sleeve, a wheel seat, and a film clamping wheel, the device is divided into two parts: film clamping and film cutting. Before film cutting, the lifting motor drives the linear screw rod to rotate, drives the wheel seat to descend through the threaded sleeve, and the film clamping wheel abuts against the winding film roll outside the film roll. After the film cutting knife cuts the uppermost group of film rolls, the threaded sleeve descends a certain distance, drives the film clamping wheel to descend, and abuts against the position of the next group of film rolls to be cut. By automatically lifting and adjusting film clamping, the stability of cutting is ensured;

[0016] (2) By providing a cylinder, a piston rod, a lifting rod, and a sleeve rod, when the film cutting knife cuts, the cylinder drives the piston rod to retract, drives the tool rest to descend through the tool rest, drives the position of the film cutting knife to descend, and the lifting rod penetrates through the sleeve rod to ensure the stability of the descent, so as to perform fixed-distance slitting on the film roll outside the film roll. By controlling the stroke distance of the piston rod, the accuracy of the cutting section is ensured, and the slitting is more uniform;

[0017] (3) By arranging a moving motor, a film cutting knife, a toothed rail, and a gear, with the moving motor arranged at the tool rest. During cutting, the cutter head motor drives the film cutting knife to rotate at high speed. When the moving motor drives the gear to rotate, it drives the engaged toothed rail to move leftward, thereby driving the film cutting knife to move leftward to cut the film roll outside the film roller. After cutting, it automatically resets, without the need for manual operation, and the cutting is more efficient and safe. Brief Description of the Drawings

[0018] Figure 1 is a front view sectional structure schematic diagram of the present utility model;

[0019] Figure 2 is a front view sectional structure schematic diagram of the inner groove of the present utility model;

[0020] Figure 3 is a partial top view structure schematic diagram of the toothed rail of the present utility model;

[0021] Figure 4 is a top view structure schematic diagram of the film clamping wheel of the present utility model.

[0022] In the figure: 1. Tool rest; 2. Toothed rail; 3. Fixed seat; 4. Gear; 5. Cutter head motor; 6. Tool shaft; 7. Film cutting knife; 8. Film roller; 9. Film clamping wheel; 10. Wheel seat; 11. Lifting motor; 12. Linear screw; 13. Threaded sleeve; 14. Sliding sleeve; 15. Guide rod; 16. Inner groove; 17. Column; 18. Platform; 19. Underframe; 20. Rod sleeve; 21. Lifting rod; 22. Cylinder; 23. Piston rod; 24. Lifting groove; 25. Moving motor. Detailed Description of the Embodiment

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-4, an embodiment provided by the present utility model: a film clamping and cutting device for machine-use winding film, comprising a platform 18 and a tool rest 1. On the left side of the top end of the platform 18, a film roller 8 is fixedly connected. On the left side of the platform 18, a column 17 is fixedly connected. An inner groove 16 is formed in the column 17. A linear screw rod 12 is movably assembled in the inner groove 16. A thread sleeve 13 is sleeved outside the linear screw rod 12. On the right side of the thread sleeve 13, a wheel seat 10 is fixedly connected. A film clamping wheel 9 is movably connected at the wheel seat 10. A lifting motor 11 is installed at the top end of the column 17. The output shaft of the lifting motor 11 is fixedly connected to the linear screw rod 12. The film clamping wheel 9 and the film roller 8 are in the same plane in the vertical direction. On both sides of the inner wall of the inner groove 16, a set of guide rods 15 are respectively fixedly connected. At the four corners of the thread sleeve 13, sliding sleeves 14 are respectively welded. The sliding sleeves 14 are sleeved outside the guide rods 15 and slide thereon;

[0025] Specifically, as Figure 1 , Figure 2 and Figure 4 shown, the device is divided into two parts: film clamping and film cutting. Before film cutting, the lifting motor 11 drives the linear screw rod 12 to rotate, drives the wheel seat 10 to descend through the thread sleeve 13, and the film clamping wheel 9 abuts against the outer winding film roll of the film roller 8. After the film cutting knife 7 cuts the uppermost set of film rolls, the thread sleeve 13 descends a certain distance, drives the film clamping wheel 9 to descend, and abuts against the position of the next set of film rolls to be cut.

[0026] A lifting groove 24 is located below the tool rest 1. The size of the lifting groove 24 is larger than the length of the tool rest 1. In the middle position at the bottom end of the chassis 19, a cylinder 22 is fixedly connected. The output end of the cylinder 22 is provided with a piston rod 23. The piston rod 23 penetrates upward through the lifting groove 24 and is fixedly connected to the bottom end of the tool rest 1. On both sides of the bottom end of the tool rest 1, a set of lifting rods 21 are respectively fixedly connected. On both sides of the bottom end of the chassis 19, rod sleeves 20 are respectively fixed. The lifting rods 21 penetrate through the rod sleeves 20;

[0027] Specifically, as Figure 1 shown, when the film cutting knife 7 cuts, the cylinder 22 drives the piston rod 23 to retract, drives the tool rest 1 to descend through the tool rest 1, drives the position of the film cutting knife 7 to descend, and the lifting rods 21 penetrate through the rod sleeves 20 to ensure the stability of the descent, so as to perform fixed-distance cutting on the film roll outside the film roller 8, and ensure the accuracy of the cutting section by controlling the stroke distance of the piston rod 23.

[0028] On the right side inside the platform 18, a lifting groove 24 is provided. Above the lifting groove 24, a tool rest 1 is provided. At the top end and inside of the tool rest 1, a fixed seat 3 is fixedly connected. At the rear end of the fixed seat 3, a moving motor 25 is fixedly connected. The output shaft of the moving motor 25 is fixedly sleeved with a gear 4. At the top end and inside of the tool rest 1, a tooth rail 2 is movably assembled. The gear 4 and the tooth rail 2 are meshed and connected. On the right side at the bottom end of the platform 18, a chassis 19 is fixedly connected. Between the tooth rails 2, a tool shaft 6 is movably assembled. In the middle position of the tool shaft 6, a film cutting knife 7 is fixedly assembled. At the top end of the tooth rail 2, a tool disc motor 5 is installed. The output shaft of the tool disc motor 5 is fixedly connected to the tool shaft 6;

[0029] Specifically, as Figure 1 and Figure 3 shown, a moving motor 25 is provided at the tool rest 1. During cutting, the cutter head motor 5 drives the film cutting knife 7 to rotate at a high speed. When the moving motor 25 drives the gear 4 to rotate, it drives the tooth rail 2 engaged therewith to move leftward, thereby driving the film cutting knife 7 to move leftward to cut the film roll outside the film roller 8, and automatically resetting after cutting.

[0030] Working principle: When the present utility model is in use, first, the film roll is sleeved on the film roller 8. Before film cutting, the lifting motor 11 drives the linear screw 12 to rotate, and drives the wheel seat 10 to descend through the threaded sleeve 13. The film clamping wheel 9 abuts against the winding film roll outside the film roller 8. A moving motor 25 is provided at the tool rest 1. During cutting, the cutter head motor 5 drives the film cutting knife 7 to rotate at a high speed. When the moving motor 25 drives the gear 4 to rotate, it drives the tooth rail 2 engaged therewith to move leftward, thereby driving the film cutting knife 7 to move leftward to cut the film roll outside the film roller 8. After the film cutting knife 7 finishes cutting the uppermost group of film rolls, the threaded sleeve 13 descends a certain distance, driving the film clamping wheel 9 to descend and abut against the position of the next group of film rolls to be cut. The air cylinder 22 drives the piston rod 23 to retract, and drives the tool rest 1 to descend, driving the position of the film cutting knife 7 to descend. The lifting rod 21 passes through the rod sleeve 20 to ensure the stability of the descent, so as to perform fixed-distance cutting on the film rolls outside the film roller 8, and the tool rest 1 automatically resets after cutting.

[0031] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A film clamping and cutting device for machine use, comprising a platform (18) and a tool holder (1), characterized in that: On the left side at the top of the platform (18), a film roller (8) is fixedly connected. On the left side of the platform (18), a column (17) is fixedly connected. An inner groove (16) is formed inside the column (17). A linear screw rod (12) is movably assembled in the inner groove (16). A thread sleeve (13) is sleeved outside the linear screw rod (12). On the right side of the thread sleeve (13), a wheel seat (10) is fixedly connected. A film clamping wheel (9) is movably connected at the wheel seat (10). At the top of the column (17), a lifting motor (11) is installed. The output shaft of the lifting motor (11) is fixedly connected to the linear screw rod (12).

2. The machine-use winding film clamping and cutting device according to claim 1, characterized in that: The film clamping wheel (9) and the film roller (8) are in the same plane in the vertical direction.

3. The film clamping and cutting device for machine-use winding film according to claim 1, wherein: On both sides of the inner wall of the inner groove (16), a set of guide rods (15) are respectively fixedly connected. At the four corners of the thread sleeve (13), sliding sleeves (14) are respectively welded. The sliding sleeves (14) are sleeved outside the guide rods (15) and slide.

4. The film clamping and cutting device for machine-used winding film according to claim 1, characterized in that: On the right side inside the platform (18), a lifting groove (24) is provided. Above the lifting groove (24), a tool holder (1) is provided. At the top and inside of the tool holder (1), a fixed seat (3) is fixedly connected. At the rear end of the fixed seat (3), a moving motor (25) is fixedly connected. The output shaft of the moving motor (25) is fixedly sleeved with a gear (4). A toothed rail (2) is movably assembled at the top and inside of the tool holder (1). The gear (4) and the toothed rail (2) are meshed. At the right side at the bottom of the platform (18), a chassis (19) is fixedly connected.

5. The machine-use winding film clamping and cutting device according to claim 4, characterized in that: A tool shaft (6) is movably assembled between the toothed rails (2). A film cutting knife (7) is fixedly assembled at the middle position of the tool shaft (6). At the top of the toothed rail (2), a tool disc motor (5) is installed. The output shaft of the tool disc motor (5) is fixedly connected to the tool shaft (6).

6. The machine-use winding film clamping and cutting device according to claim 4, characterized in that: The lifting groove (24) is located below the tool holder (1). The size of the lifting groove (24) is larger than the length of the tool holder (1).

7. A machine-use winding film clamping and cutting device according to claim 4, characterized in that: At the middle position at the bottom of the chassis (19), a cylinder (22) is fixedly connected. The output end of the cylinder (22) is provided with a piston rod (23). The piston rod (23) penetrates upward through the lifting groove (24) and is fixedly connected to the bottom end of the tool holder (1).

8. A machine-use winding film clamping and cutting device according to claim 4, characterized in that: At both sides of the bottom end of the tool holder (1), a set of lifting rods (21) are respectively fixedly connected. At both sides of the bottom end of the chassis (19), rod sleeves (20) are respectively fixed. The lifting rods (21) penetrate through the rod sleeves (20).

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