Middle-position cutting device for packaging film

Abstract

The utility model relates to the technical field of packaging films, in particular to a packaging film middle-position cutting device which comprises a first feeding roller, a second feeding roller, a driving roller, a driving motor, a third feeding roller, a middle-position cutting device body, a fourth feeding roller and a conveying belt. A packaging film is conveyed to a conveying belt through a first feeding roller, a second feeding roller, a driving roller, a third feeding roller and a fourth feeding roller, one end of a cutting knife of the middle-position cutting-off device is connected with a middle-position cutting-off device connecting plate, the other end of the cutting knife is connected with a machine frame, the cutting knife is stabilized, and therefore a cutting blade does not deviate, and the packaging film is cut off. And the cutting hardcover property of the packaging film is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging films, in particular to a packaging film mid-position cutting device. Background Art

[0002] The Chinese patent with authorization announcement number CN220409006U discloses a shearing device suitable for plastic packaging films of various sizes. What is specifically disclosed is that a threaded rod is provided inside the vertical cutting groove, and a second motor is provided on the side surface of the vertical cutting groove. The output end of the second motor penetrates into the interior of the vertical cutting groove and is transmission-connected with the threaded rod. The outer surface of the threaded rod is threadedly connected with a sliding block, and a vertical cutting knife is fixedly installed on the upper end surface of the sliding block. By setting the vertical cutting knife, the plastic packaging film can be vertically cut to cut the packaging film into two halves from the middle. However, in actual use, this patent cuts the packaging film vertically. Since the vertical cutting knife is slidably connected to the threaded rod, a slight external force on the vertical cutting knife will cause the position of the vertically cut packaging film to shift, thereby making the size of the packaging film not accurate enough. Therefore, there is an urgent need for a packaging film center cutting device that can ensure that the position of the vertical cut on the packaging film will not shift when the packaging film is vertically cut. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a packaging film mid-position cutting device, which can ensure that when the packaging film is cut vertically, the position of the vertical cutting will not be offset on the packaging film.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows: a packaging film mid-position cutting device, comprising a frame, a feeding roller, a multi-stage transmission roller, a cross-cutting knife and a conveyor belt, wherein the feeding roller, the multi-stage transmission roller, the cross-cutting knife and the conveyor belt are sequentially connected to the frame along the X direction;

[0005] A first feeding roller, the first feeding roller is connected to the frame, the first feeding roller is parallel to the feeding roller, and the first feeding roller is located in the X direction of the multi-stage transmission roller;

[0006] A second feeding roller, the second feeding roller is connected to the frame, the second feeding roller is parallel to the first feeding roller, and the second feeding roller is located above the first feeding roller in the X direction;

[0007] An active roller is connected to the frame, is parallel to the second feeding roller, and is located in the X direction of the second feeding roller;

[0008] A driving motor, wherein the output end of the driving motor is connected to the driving roller;

[0009] The third feed roller is connected to the frame, the third feed roller is located below the active roller, the third feed roller is parallel to the active roller, a gap is provided between the third feed roller and the active roller, and the third feed roller is located at the starting end of the conveyor belt;

[0010] The mid-position cutting device includes a connecting portion, a cutting knife, a connecting plate, a first support rod and a second support rod. The connecting portion is connected to the frame. One end of the cutting knife is detachably connected to the connecting portion. There are two connecting plates, one of which is connected to the frame through the first support rod, and the other is connected to the frame through the second support rod. The other end of the cutting knife is detachably connected between the two connecting plates.

[0011] A fourth feeding roller, the fourth feeding roller is connected to the frame, and the fourth feeding roller is located between the third feeding roller and the second feeding roller;

[0012] The cross-cutting knife is located between the conveyor belt and the third feeding roller.

[0013] Furthermore, the packaging film mid-position cutting device also includes a screw and a nut. A first threaded hole is provided on the connecting part, and a first through hole is provided at one end of the cutting knife. The screw passes through the first through hole and the first threaded hole in sequence to thread the cutting knife to the connecting part. A second through hole is provided at the other end of the cutting knife, and a third through hole matching the second through hole is provided on the connecting plate. The screw passes through the first through hole and the second through hole in sequence, and the connecting plate is connected to the cutting knife with a nut.

[0014] Furthermore, the angle between the cutting blade and the horizontal is 20-30°.

[0015] Furthermore, the cutting blade is made of carbon steel.

[0016] The beneficial effect of the utility model is that: by connecting one end of the cutting knife to the connecting part and the other end of the cutting knife to the frame, the cutting knife is prevented from being offset in the vertical cutting position on the packaging film due to external force, ensuring that the blade of the cutting knife can stably cut the packaging film of the first feed roller and the second feed roller along the X direction, thereby improving the accuracy of packaging film cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a packaging film mid-position cutting device according to a specific embodiment of the utility model;

[0018] Figure 2 for Figure 1 A magnified view of part A;

[0019] Figure 3 This is another structural schematic diagram of a packaging film mid-position cutting device according to a specific embodiment of the utility model;

[0020] Figure 4 for Figure 3 A magnified view of part B;

[0021] Figure 5 Schematic diagram of the wrapping structure of the packaging film;

[0022] Figure 6 This is a structural schematic diagram of a pressing device of a packaging film mid-position cutting device according to a specific embodiment of the present invention.

[0023] Label Description

[0024] 1. Frame;

[0025] 2. Feed roller;

[0026] 3. Multi-stage conveyor roller;

[0027] 4. Crosscut knife;

[0028] 5. Conveyor belt;

[0029] 6. The first feeding roller;

[0030] 7. Second feeding roller;

[0031] 8. Active roller;

[0032] 9. Drive motor;

[0033] 10. Third feed roller; 11. Center cutting device; 111. Connecting portion; 112. Cutting blade; 113. Connecting plate; 114. First support rod; 115. Second support rod; 12. Fourth feed roller; 13. Screw; 14. Nut; 15. Mounting platform; 16. Pressing plate; 161. Pressing block;

[0034] 101. Screw. DETAILED DESCRIPTION

[0035] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

[0036] Please refer to Figures 1 to 6 A packaging film mid-position cutting device includes a frame 1, a feeding roller 2, a multi-stage transmission roller 3, a cross-cutting knife 4 and a conveyor belt 5, wherein the feeding roller 2, the multi-stage transmission roller, the cross-cutting knife 4 and the conveyor belt 5 are sequentially connected to the frame 1 along the X direction;

[0037] The first feeding roller 6 is connected to the frame 1, the first feeding roller 6 is parallel to the feeding roller 2, and the first feeding roller 6 is located in the X direction of the multi-stage transmission roller;

[0038] The second feed roller 7 is connected to the frame 1, the second feed roller 7 is parallel to the first feed roller 6, and the second feed roller 7 is located above the first feed roller 6 in the X direction;

[0039] Active roller 8, active roller 8 is connected to the frame 1, active roller 8 is parallel to the second feeding roller 7, and active roller 8 is located in the X direction of the second feeding roller 7;

[0040] A driving motor 9, wherein the output end of the driving motor 9 is transmission-connected to the active roller 8;

[0041] The third feed roller 10 is connected to the frame 1 and is located below the active roller 8. The third feed roller 10 is parallel to the active roller 8. A gap is provided between the third feed roller 10 and the active roller 8. The third feed roller 10 is located at the starting end of the conveyor belt 5.

[0042] The mid-position cutting device 11 includes a connecting portion 111, a cutting blade 112, a connecting plate 113, a first support rod 114, and a second support rod 115. The connecting portion 111 is connected to the frame 1, and one end of the cutting blade 112 is detachably connected to the connecting portion 111. The connecting plate 113 has two pieces, one of which is connected to the frame 1 through the first support rod 114, and the other is connected to the frame 1 through the second support rod 115. The other end of the cutting blade is detachably connected between the two connecting plates 113.

[0043] The fourth feed roller 12 is connected to the frame 1 and is located between the third feed roller 10 and the second feed roller 7;

[0044] The cross-cutting knife 4 is located between the conveyor belt 5 and the third feeding roller 10 .

[0045] In the above embodiment, the packaging film is wound around the feed roller 2, the multi-stage transmission roller, the first feed roller 6, the second feed roller 7, the active roller 8, the third feed roller 10 and the fourth feed roller 12 in sequence, the drive motor 9 is turned on, the active roller 8 rotates, thereby driving the third feed roller 10 to rotate, and the packaging film is transported along X. When the packaging film is located between the first feed roller 6 and the second feed roller 7, since one end of the cutting knife 112 is connected to the connecting part 111 and the other end of the cutting knife 112 is connected to the frame 1, the cutting knife 112 is prevented from being offset in the vertical cutting position on the packaging film by external force, thereby ensuring that the blade of the cutting knife 112 can stably cut the packaging film of the first feed roller 6 and the second feed roller 7, thereby improving the accuracy of packaging film cutting.

[0046] As an optional embodiment, the film mid-position cutting device 11 also includes a screw 13 and a nut 14. A first threaded hole is provided on the connecting part 111, and a first through hole is provided at one end of the cutting knife 112. The screw 13 passes through the first through hole and the first threaded hole in sequence to thread the cutting knife 112 to the connecting part 111. The cutting knife 112 is provided with a second through hole at the other end, and a third through hole matching the second through hole is provided on the connecting plate 113. The screw 13 passes through the first through hole and the second through hole in sequence, and the connecting plate 113 is connected to the cutting knife 112 with the nut 14.

[0047] In the above embodiment, the cutting blade 112 can be detachably connected so that the cutting blade 112 can be repaired and replaced at any time.

[0048] As an optional embodiment, the angle between the cutting blade 112 and the horizontal is 20-30 degrees.

[0049] As an optional embodiment, the cutting blade 112 is made of carbon steel.

[0050] In the above embodiment, the cutting knife 112 can be better maintained stable and the cutting performance and impact resistance of the cutting knife 112 can be improved to ensure that the vertical cutting of the packaging film does not deviate, thereby ensuring the cutting accuracy and improving the production efficiency of the packaging film.

[0051] As an optional embodiment, the packaging film mid-position cutting device 11 further includes a pressing device, which includes a mounting platform 15, a pressing plate 16, and a screw 101. The mounting platform 15 is connected to the frame 1, and the upper edge of the mounting platform 15 is flush with the lower edge of the first feeding roller 2. The screw 101 is rotatably connected to the mounting platform via a bearing. The pressing plate 16 is provided with a threaded hole that cooperates with the screw 101, and a pressing block 161 is provided below the pressing plate 16.

[0052] In the above embodiment, the pressing plate 16 is threadedly connected to the screw 101 to control the up and down movement of the pressing plate 16, so that the pressing block 161 below the pressing plate 16 can press the diaphragm to ensure that the diaphragm does not wrinkle when cut vertically.

[0053] As an optional embodiment, the pressing plate 16 is a strip-shaped plate.

[0054] The above description is only an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent transformation made by using the contents of the present invention specification and drawings, or directly or indirectly applied to the relevant

[0055] The relevant technical fields are similarly included in the patent protection scope of this utility model.

Claims

1. A packaging film mid-position cutting device, characterized in that: It includes a frame, a feeding roller, a multi-stage transmission roller, a cross-cutting knife and a conveyor belt, wherein the feeding roller, the multi-stage transmission roller, the cross-cutting knife and the conveyor belt are sequentially connected to the frame along the X direction; A first feeding roller, the first feeding roller is connected to the frame, the first feeding roller is parallel to the feeding roller, and the first feeding roller is located in the X direction of the multi-stage transmission roller; A second feeding roller, the second feeding roller is connected to the frame, the second feeding roller is parallel to the first feeding roller, and the second feeding roller is located above the first feeding roller in the X direction; An active roller is connected to the frame, is parallel to the second feeding roller, and is located in the X direction of the second feeding roller; A driving motor, wherein the output end of the driving motor is connected to the driving roller; The third feed roller is connected to the frame, the third feed roller is located below the active roller, the third feed roller is parallel to the active roller, a gap is provided between the third feed roller and the active roller, and the third feed roller is located at the starting end of the conveyor belt; The mid-position cutting device includes a connecting portion, a cutting knife, a connecting plate, a first support rod and a second support rod. The connecting portion is connected to the frame. One end of the cutting knife is detachably connected to the connecting portion. There are two connecting plates, one of which is connected to the frame through the first support rod, and the other is connected to the frame through the second support rod. The other end of the cutting knife is detachably connected between the two connecting plates. A fourth feeding roller, the fourth feeding roller is connected to the frame, and the fourth feeding roller is located between the third feeding roller and the second feeding roller; The cross-cutting knife is located between the conveyor belt and the third feeding roller.

2. The packaging film mid-position cutting device according to claim 1, characterized in that: The packaging film mid-position cutting device also includes a screw and a nut. A first threaded hole is provided on the connecting part, and a first through hole is provided at one end of the cutting knife. The screw passes through the first through hole and the first threaded hole in sequence to thread the cutting knife to the connecting part. A second through hole is provided at the other end of the cutting knife, and a third through hole matching the second through hole is provided on the connecting plate. The screw passes through the first through hole and the second through hole in sequence, and the connecting plate is connected to the cutting knife with a nut.

3. The packaging film mid-position cutting device according to claim 1, characterized in that: The angle between the cutting knife and the horizontal is 20-30°.

4. The packaging film mid-position cutting device according to claim 1, characterized in that: The cutting blade is made of carbon steel.

Images