Film cutting and recycling mechanism

Abstract

The invention discloses a film cutting and recycling mechanism which comprises a front conveying roller, a rear conveying roller and a cutting knife device arranged between the front conveying roller and the rear conveying roller, the cutting knife device comprises edge cutting knives and middle cutting knife sets, and any middle cutting knife set comprises two middle cutting knives arranged in parallel. A film recovery device is arranged on a support of the front conveying roller and comprises a horizontal type main cylinder and a plurality of vertical type branch cylinders arranged on the horizontal type main cylinder, and the horizontal type main cylinder is connected with an air draft device. The edge thin film cut by the edge cutting knife and the thin film narrow strips cut by the two middle cutting knives of any middle cutting knife set are sucked into the corresponding vertical sub-cylinders, and useful strip-shaped thin films are conveyed forwards. Therefore, a large gap is formed between any two adjacent strip-shaped films, and the situation that the adjacent strip-shaped films are possibly bonded or the edges of the films are overlapped and bonded up and down can be effectively avoided.

Description

Technical Field

[0001] The invention relates to disposable glove production equipment, in particular to film cutting equipment. Background Art

[0002] To make disposable film gloves, the whole film needs to be cut into several strips. Two layers of film strips are stacked and pressed into gloves by a mold. The whole film is divided into several strips, conveyed by a conveyor roller and cut by a cutting knife, such as Figure 1 , Figure 2 As shown, the cut strip film continues to be conveyed forward. Since the cutting blade is thin, there is almost no gap between adjacent strip films after cutting. In addition, the heat generated by the friction between the cutting blade and the film acts on the film, and the conveying roller inevitably has a conveying deviation. Therefore, adjacent strip films conveyed forward may be bonded to each other, or the edges of the films may overlap and bond to each other. Summary of the invention

[0003] The technical problem solved by the present invention is that the film cutting method in the prior art may cause the adjacent strip films conveyed forward to be bonded to each other, or the edges of the films may be overlapped and bonded to each other.

[0004] To solve the above technical problems, the present invention provides the following technical solutions: a film cutting and recovery mechanism, comprising a front conveying roller and a rear conveying roller, and a cutting knife device arranged between the front conveying roller and the rear conveying roller, the cutting knife device comprising a pair of knife brackets, a knife cross plate pivotally connected to the pair of knife brackets, and a cutting knife installed on the knife cross plate, the cutting knife comprising an edge cutting knife and a middle cutting knife group, a plurality of middle cutting knife groups are located between the pair of edge cutting knives, any middle cutting knife group comprises two middle cutting knives arranged in parallel, and a gap is provided between the two middle cutting knives arranged in parallel; a film recovery device is arranged between the front conveying roller and the cutting knife device, the film recovery device comprises a horizontal main cylinder, a plurality of vertical sub-cylinders arranged on the horizontal main cylinder, the horizontal main cylinder is connected to the exhaust device, the vertical sub-cylinders are connected to the horizontal main cylinder, the number of the vertical sub-cylinders is equal to the sum of the number of the edge cutting knives and the middle cutting knife group, and the plurality of vertical sub-cylinders are arranged in a one-to-one manner corresponding to the edge cutting knives and the middle cutting knife group.

[0005] According to the above technical solution, the film is conveyed forward along the rear conveyor roller and the front conveyor roller under the drive of a pair of traction rollers in front of the front conveyor roller. The tool horizontal plate is rotated, and the edge cutting knife and the middle cutting knife are rotated forward and downward to cut the passing film. The edge film cut by the edge cutting knife is sucked into the corresponding vertical split cylinder, which is located at the two ends of the horizontal main cylinder; the narrow film strip cut by the two middle cutting knives of any middle cutting knife group is sucked into the corresponding vertical split cylinder, and the narrow film strip is located between the two middle cutting knives of any middle cutting knife group. In this way, among the several strip films conveyed forward by the front conveyor roller, the gap size between any adjacent strip films is equal to the width of the narrow film strip, and thus, it can effectively avoid the possible adhesion between adjacent strip films, or the situation where the edges of the film are overlapped and adhered up and down.

[0006] The handle of the edge cutting knife is fixedly inserted on the edge cutting knife base, and the edge cutting knife base is installed on the knife horizontal plate.

[0007] The handles of the two middle cutting knives of any middle cutting knife group are fixedly inserted on the middle cutting knife base, and the middle cutting knife base is installed on the knife cross plate.

[0008] A motor is installed on the cutter bracket, and the motor is connected to the pivot shaft of the cutter horizontal plate. The motor drives the cutter horizontal plate to rotate, so that the cutting knife penetrates into the film and cuts the film.

[0009] The two ends of the horizontal main cylinder are fixedly mounted on the bracket of the front conveying roller through a U-shaped connecting piece. The U-shaped connecting piece half surrounds the horizontal main cylinder, and the U-shaped connecting piece is fixedly mounted on the bracket of the front conveying roller through screws.

[0010] As an improvement, the front conveying roller is higher than the rear conveying roller, the film is conveyed forward from low to high, and the cutting knife cuts the film in the conveying direction of the film, which is beneficial to improve the cutting effect and enhance the quality of the film after cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be further described below in conjunction with the accompanying drawings:

[0012] Figure 1 It is a schematic diagram of a film cutting device in the prior art;

[0013] Figure 2 for Figure 1 A top view of

[0014] Figure 3 It is a schematic diagram of the film cutting and recycling mechanism of the present invention;

[0015] Figure 4 for Figure 3 A top view of

[0016] Figure 5It is a working schematic diagram of the film cutting and recycling mechanism of the present invention;

[0017] Figure 6 for Figure 5 Top view of the .

[0018] Explanation of symbols in the figure:

[0019] 01. Cutting device in the prior art; 02. Cutting knife in the prior art;

[0020] 10. Front conveyor roller; 11. Bracket for the front conveyor roller;

[0021] 20. Rear conveyor roller;

[0022] 30. Cutting knife device; 31. Knife support; 32. Knife horizontal plate; 33. Edge cutting knife; 34. Middle cutting knife group; 35. Middle cutting knife; 36. Edge cutting knife base; 37. Middle cutting knife base;

[0023] 40. Horizontal main tube; 41. Vertical sub-tube; 42. U-shaped connector;

[0024] 90. Film; 91. Edge film; 92. Narrow strip of film; 93. Strip film. DETAILED DESCRIPTION

[0025] Combination Figure 3 , Figure 4 A film cutting and recycling mechanism includes a front conveying roller 10 and a rear conveying roller 20, and a cutting knife device 30 arranged between the front conveying roller and the rear conveying roller, the cutting knife device includes a pair of knife brackets 31, a knife cross plate 32 pivotally connected to the pair of knife brackets, and a cutting knife installed on the knife cross plate, the cutting knife includes an edge cutting knife 33 and a middle cutting knife group 34, a plurality of middle cutting knife groups are located between the pair of edge cutting knives, any middle cutting knife group includes two middle cutting knives 35 arranged in parallel, and there is a gap between the two middle cutting knives arranged in parallel.

[0026] A film recovery device is provided between the front conveying roller and the cutting knife device. The film recovery device includes a horizontal main cylinder 40 and a plurality of vertical sub-cylinders 41 arranged on the horizontal main cylinder. The horizontal main cylinder is connected to the exhaust device, and the vertical sub-cylinders are connected to the horizontal main cylinder. The number of vertical sub-cylinders is equal to the sum of the number of edge cutting knives 33 and the middle cutting knife group 34, and the plurality of vertical sub-cylinders are arranged in a one-to-one manner corresponding to the edge cutting knives 33 and the middle cutting knife group 34.

[0027] The handle of the edge cutting knife 33 is fixedly inserted on the edge cutting knife base 36 , and the edge cutting knife base is installed on the knife cross plate 32 .

[0028] The handles of the two middle cutting knives 35 of any middle cutting knife set 34 are fixedly inserted on the middle cutting knife base 37 , and the middle cutting knife base is installed on the knife cross plate 32 .

[0029] A motor is installed on the tool support 31 , and the motor is connected to the pivot shaft of the tool horizontal plate 32 .

[0030] The two ends of the horizontal main cylinder 40 are fixedly mounted on the bracket 11 of the front conveying roller through U-shaped connecting pieces 42.

[0031] The front conveying roller 10 is higher than the rear conveying roller 20 .

[0032] refer to Figure 5 , Figure 6 , driven by a pair of traction rollers in front of the front conveying roller 10, the film 90 is conveyed forward along the rear conveying roller 20 and the front conveying roller 10. Driven by the motor, the cutter horizontal plate 32 rotates, and the edge cutting knife 33 and the middle cutting knife 35 rotate forward and downward to cut the passing film 90. The edge film 91 cut by the edge cutting knife is sucked into the corresponding vertical sub-drum 41, which is located at the two ends of the horizontal main drum 40; the film strip 92 cut by the two middle cutting knives 35 of any middle cutting knife group 34 is sucked into the corresponding vertical sub-drum, and the film strip 92 is located between the two middle cutting knives 35 of any middle cutting knife group. In this way, among the plurality of strip films 93 conveyed forward by the front conveying roller 10, the gap between any adjacent strip films is equal to the width of the film strip 92, thereby effectively avoiding the possible adhesion between adjacent strip films 93, or the situation where the film edges are overlapped and adhered up and down.

[0033] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. A film cutting and recycling mechanism, comprising a front conveying roller (10) and a rear conveying roller (20), and a cutting knife device (30) arranged between the front conveying roller and the rear conveying roller, the cutting knife device comprising a pair of knife brackets (31), a knife cross plate (32) pivotally connected to the pair of knife brackets, and a cutting knife mounted on the knife cross plate, characterized in that: The cutting knives include edge cutting knives (33) and a middle cutting knife group (34), a plurality of middle cutting knife groups are located between a pair of edge cutting knives, and any middle cutting knife group includes two middle cutting knives (35) arranged in parallel, and a gap is provided between the two middle cutting knives arranged in parallel; A film recovery device is provided between the front conveying roller and the cutting knife device, and the film recovery device comprises a horizontal main cylinder (40) and a plurality of vertical sub-cylinders (41) arranged on the horizontal main cylinder, the horizontal main cylinder is connected to the exhaust device, and the vertical sub-cylinders are connected to the horizontal main cylinder, the number of the vertical sub-cylinders is equal to the sum of the number of the edge cutting knives (33) and the number of the middle cutting knife group (34), and the plurality of vertical sub-cylinders are arranged in a one-to-one manner corresponding to the edge cutting knives (33) and the middle cutting knife group (34).

2. The film cutting and recycling mechanism according to claim 1, characterized in that: The handle of the edge cutting knife (33) is fixedly inserted on the edge cutting knife base (36), and the edge cutting knife base is installed on the knife horizontal plate (32).

3. The film cutting and recycling mechanism according to claim 1, characterized in that: The handles of the two middle cutting knives (35) of any middle cutting knife group (34) are fixedly inserted on the middle cutting knife base (37), and the middle cutting knife base is installed on the knife cross plate (32).

4. The film cutting and recycling mechanism according to claim 1, characterized in that: A motor is installed on the tool support (31), and the motor is connected to the pivot shaft of the tool horizontal plate (32).

5. The film cutting and recycling mechanism according to claim 1, characterized in that: The two ends of the horizontal main cylinder (40) are fixedly mounted on the bracket (11) of the front conveying roller through U-shaped connecting pieces (42).

6. The film cutting and recycling mechanism according to claim 1, characterized in that: The front conveying roller (10) is higher than the rear conveying roller (20).

Images