CN-122008357-A - Roller cutting knife and film cutting machine

Abstract

The embodiment of the invention discloses a roller cutting knife and a film cutting machine, which comprise a roller roll surface, a plurality of first cutting knives, a plurality of second cutting knives, a blowing structure and a blowing structure, wherein the first cutting knives are arranged adjacently along the axial direction of the roller roll surface, the first cutting knives are arranged in a group along the circumferential direction of the roller roll surface at intervals, the second cutting knives are arranged adjacently in sequence along the circumferential direction of the roller roll surface, the juncture of the two adjacent first cutting knives and the two second cutting knives is provided with a middle rim charge area, the blowing structure comprises a blowing port, the blowing port is positioned in the middle rim charge area, and the blowing port is used for being connected with an external air source to realize blowing down of middle rim charge positioned in the middle rim charge area. According to the embodiment of the invention, the air blowing structure is arranged, so that air flow can be continuously blown out to the middle rim charge in the cutting process, the middle rim charge is timely separated from the surface of the knife roller, and the adhesion and winding of the middle rim charge are effectively avoided.

Inventors

• LIU JINQIAO
• XU ZHIYUAN

Assignees

• 楚天科技股份有限公司

Dates

Publication Date

20260512

Application Date

20260330

Claims (10)

1. 1. A roller cutter, comprising: A roller surface of the roller; The plurality of first cutting blades are adjacently arranged along the axial direction of the roller surface, and are arranged at intervals along the circumferential direction of the roller surface by taking at least two first cutting blades as a group; The second cutting blades are sequentially and adjacently arranged along the circumferential direction of the roller surface of the roller, and a middle rim charge area is formed at the junction of the two adjacent first cutting blades and the two second cutting blades; The blowing structure comprises a blowing port, wherein the blowing port is positioned in the middle rim charge area and is used for being connected with an external air source to blow down the middle rim charge positioned in the middle rim charge area.
2. 2. The roller cutter of claim 1, wherein a plurality of the first cutters and a plurality of the second cutters enclose to form a plurality of cutting areas, each cutting area sharing an adjacent edge with an adjacent cutting area.
3. 3. The roller cutter of claim 2, wherein the blowing structure further comprises: The air inlet is positioned at one end of the roller cutting knife in the length direction; and the air inlet channel is positioned in the roller cutting knife and extends along the length direction, and the air inlet channel is communicated with the air inlet and the air blowing port.
4. 4. The film cutting machine is characterized by comprising the roller cutting knife according to any one of claims 1-3, and further comprising: The roller cutting knife is positioned below the first conveying mechanism and is adjacently arranged; a second conveying mechanism disposed adjacent to the first conveying mechanism in a first direction; the waste recycling mechanism is positioned below the second conveying mechanism and comprises: the waste material transferring negative pressure roller is adjacently arranged with the roller cutting knife in the first direction and corresponds to the middle rim charge area, and the rotation direction of the roller cutting knife is opposite to that of the waste material transferring negative pressure roller; The waste collection box is arranged below the waste transfer negative pressure roller.
5. 5. The film cutting machine of claim 4, wherein the waste recycling mechanism further comprises a cleaning member disposed on a side of the waste transfer negative pressure roller facing away from the roller cutting blade in the first direction, and the cleaning member is in abutment with the waste transfer negative pressure roller.
6. 6. The film cutter of claim 4, wherein the first transfer mechanism comprises a first negative pressure roller, and the second transfer mechanism comprises a second negative pressure roller, the second negative pressure roller being opposite to the first negative pressure roller in rotation direction; the first negative pressure roller is used for adsorbing and conveying materials, the roller cutting knife is used for slicing the materials to form material slices when the materials are positioned between the first conveying mechanism and the roller cutting knife, and the second negative pressure roller is used for receiving and conveying the material slices when the material slices are positioned between the first negative pressure roller and the second conveying mechanism.
7. 7. The film cutter of claim 6, wherein the roller surface comprises a first end and a second end opposite to each other along the length direction thereof, the cutting area and the first end and the second end form two side edge material areas therebetween, and the first negative pressure roller is provided with: The cutting device comprises a cutting area, a first negative pressure suction hole area, a middle rim charge area and a second rim charge area, wherein the cutting area is used for cutting the cutting area, the first negative pressure suction hole area corresponds to the cutting area, the first negative pressure suction hole area comprises a plurality of first negative pressure suction holes, the first negative pressure suction holes are arranged at intervals to form a first avoiding area, and the middle rim charge area corresponds to the first avoiding area; The first negative pressure roller comprises a first roller surface, the first roller surface comprises a third end and a fourth end which are opposite along the length direction of the first roller surface, a second avoiding area is formed between the first negative pressure suction hole area and the third end and the fourth end, and the second avoiding area corresponds to the two side edge material areas.
8. 8. The film cutting machine of claim 6, wherein the second negative pressure roller is provided with a plurality of groups of negative pressure suction holes, the plurality of groups of negative pressure suction holes are arranged at intervals along the length direction of the second negative pressure roller, each group of negative pressure suction holes comprises a plurality of second negative pressure suction holes, and the plurality of second negative pressure suction holes are arranged at intervals along the circumference direction of the second negative pressure roller.
9. 9. The film cutter of claim 8, wherein the second transfer mechanism further comprises a negative pressure conveyor belt comprising a plurality of belt bodies; the second negative pressure roller is provided with a plurality of grooves, the grooves are positioned between two adjacent groups of negative pressure suction holes, the belt bodies are positioned in the grooves, and the second negative pressure roller drives the belt bodies to move.
10. 10. The film cutter of claim 9, wherein the belt body is provided with: the belt body is provided with a first negative pressure roller, a first transmission tooth and a second transmission tooth, wherein the first transmission tooth is arranged on one surface of the belt body facing the second negative pressure roller; The second negative pressure suction holes are arranged at intervals along the length direction of the belt body.

Description

Roller cutting knife and film cutting machine Technical Field The invention relates to the technical field of medicine conveying, in particular to a film cutter and a roller cutting knife. Background In the automatic production process of the hot melt adhesive medicine patches, materials are transported to a roller cutting station for molding processing. The cutting knife on the existing roller cutting knife is arranged at intervals, continuous strip-shaped rim charge can be formed between two adjacent material slices when cutting, the formed strip-shaped rim charge occupies a large amount of effective material area, usable material slices cannot be formed, the yield of finished products of materials in unit length is reduced, the utilization rate of raw materials is low, and the production cost is high. Disclosure of Invention Aiming at least part of problems and defects in the prior art, the embodiment of the invention discloses a film cutting machine and a roller cutting knife, which can effectively avoid clamping and stacking of intermediate rim charge. The roller cutting knife comprises a roller surface, a plurality of first cutting knives, a plurality of second cutting knives, a blowing structure and a blowing structure, wherein the first cutting knives are arranged adjacently along the axial direction of the roller surface, the first cutting knives are arranged in a group at intervals along the circumferential direction of the roller surface, the second cutting knives are arranged adjacently in sequence along the circumferential direction of the roller surface, a middle rim charge area is formed at the juncture of the two adjacent first cutting knives and the two second cutting knives, the blowing structure comprises a blowing port, the blowing port is located in the middle rim charge area, and the blowing port is used for being connected with an external air source to realize blowing down of middle rim charge located in the middle rim charge area. In some embodiments, a plurality of the first cutting blades and a plurality of the second cutting blades enclose to form a plurality of cutting areas, each of the cutting areas sharing an adjacent edge with an adjacent cutting area. In some embodiments, the blowing structure further comprises an air inlet positioned at one end of the roller cutting knife in the length direction, and an air inlet channel positioned in the roller cutting knife and extending in the length direction, wherein the air inlet channel is communicated with the air inlet and the air blowing opening. On the other hand, the film cutting machine comprises any one of the roller cutting knives, a first conveying mechanism, a second conveying mechanism, a waste recycling mechanism and a waste collecting box, wherein the roller cutting knives are arranged below the first conveying mechanism and are adjacently arranged, the second conveying mechanism is adjacently arranged on the first conveying mechanism in the first direction, the waste recycling mechanism is arranged below the second conveying mechanism, the waste recycling mechanism comprises a waste transferring negative pressure roller, the waste transferring negative pressure roller is adjacently arranged on the roller cutting knives in the first direction and corresponds to the middle rim charge area, the roller cutting knives and the waste transferring negative pressure roller are opposite in rotation direction, and the waste collecting box is arranged below the waste transferring negative pressure roller. In some embodiments, the waste recycling mechanism further comprises a cleaning member disposed on a side of the waste transfer negative pressure roller facing away from the roller cutting blade in the first direction, and the cleaning member is in abutment with the waste transfer negative pressure roller. In some embodiments, the first conveying mechanism comprises a first negative pressure roller, the second conveying mechanism comprises a second negative pressure roller, the second negative pressure roller is opposite to the first negative pressure roller in rotation direction, the first negative pressure roller is used for adsorbing and conveying materials, the roller cutting knife is used for slicing the materials to form material slices when the materials are between the first conveying mechanism and the roller cutting knife, and the second negative pressure roller is used for receiving and conveying the material slices when the material slices are between the first negative pressure roller and the second conveying mechanism. In some embodiments, the roller surface comprises a first end and a second end which are opposite along the length direction of the roller surface, two side edge material areas are formed between the cutting area and the first end and the second end, the first negative pressure roller is provided with a first negative pressure suction hole area corresponding to the cutting area, the first negative pres