Adjustable cutting mechanism for packaging film processing

Abstract

The utility model provides an adjustable cutting mechanism for packaging film processing, and relates to the field of packaging film processing, the adjustable cutting mechanism comprises a packaging film cutting machine body, a cutting adjusting rod and cutting knives, the cutting adjusting rod is fixed on the upper end face of the packaging film cutting machine body, the cutting knives are distributed at the front end of the packaging film cutting machine body at equal intervals, and the cutting knives are fixed on the cutting adjusting rod. A cavity opening in the left end of the cutting adjusting rod is connected with a negative pressure pump through a negative pressure pipe, adsorption grooves are formed in the front surface and the rear surface of the cutting adjusting rod, the surface of the cutting adjusting rod is sleeved with an adjusting block, the front end of the adjusting block is connected with a cutting knife through a mounting frame, and a distance sensor is fixed to the upper end of the mounting frame. The outer ring face of the adjusting block is movably connected with an auxiliary roller, and the inner side of the adjusting block is connected with a positioning pressing plate through a screw joint column. The cutting device solves the problem that in the prior art, the fixing position of a sliding block at the lower end of a cutting blade is adjusted according to the inserting hole position, and consequently the cutting width adjusting effect of a packaging film is limited.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging film processing, and particularly relates to an adjustable cutting mechanism for packaging film processing. Background Art

[0002] Packaging films mainly refer to the films used for packaging items, usually including polyethylene films, biaxially oriented polyester (BOPET), BOPP films, CPP films, etc., and are mainly used for packaging food, medicines, and textiles. During production, the packaging film needs to be cut into various different widths. After retrieval, in the prior art (publication number: CN202223418978.9), a cutting mechanism for a packaging film is described. It is recorded in the text that "under the action of the cutting mechanism, through the action of multiple sliding blocks and the first slider at the bottom, the sliding blocks slide between the inside of the first sliding groove and the outer wall of the fixed rod, so as to be able to adjust the distance between the sliding blocks, and thus be able to change the cutting distance of the packaging film. And the threaded rod can realize the fixed connection between the first slider and the sliding block. According to the actual needs, the sliding blocks and the cutting blades can also be adjusted or reduced, so as to form n + 1 packaging film cutting quantities. Subsequently, the sliding blocks are fixed by inserting the fixing pins between the first fixing groove and the second fixing groove, so as to be able to adjust the cutting width", but in the prior art, the fixed position of the sliding block at the lower end of the cutting blade is adjusted according to the plugging hole positions, resulting in the problem of limited adjustment effect of the cutting width of the packaging film. Content of the Utility Model

[0003] In order to overcome the defects existing in the prior art, the present utility model provides an adjustable cutting mechanism for packaging film processing to solve the problem that in the prior art, the fixed position of the sliding block at the lower end of the cutting blade is adjusted according to the plugging hole positions, resulting in the limited adjustment effect of the cutting width of the packaging film.

[0004] To achieve the above object, an adjustable cutting mechanism for packaging film processing is provided, including: a packaging film cutting machine body, a cutting adjustment rod, and a cutting knife. The cutting adjustment rod is fixed on the upper end surface of the packaging film cutting machine body, and the cutting knives are equidistantly distributed at the front end of the packaging film cutting machine body.

[0005] The left end cavity of the cutting adjustment rod is connected to a negative pressure pump through a negative pressure pipe. The front and rear surfaces of the cutting adjustment rod are provided with adsorption grooves. An adjustment block is sleeved on the surface of the cutting adjustment rod. The front end of the adjustment block is connected to the cutting knife through a mounting frame. A distance sensor is fixed on the upper end of the mounting frame. An auxiliary roller is movably connected to the outer ring surface of the adjustment block. The inner side of the adjustment block is connected to a positioning pressure plate through a threaded column.

[0006] Further, a negative pressure pump is fixedly supported on the left side of the packaging film cutting machine body, and the left and right ends of the cutting adjustment rod are embedded and connected with a left fixing plate and a right fixing plate.

[0007] Further, the lower ends of the left fixing plate and the right fixing plate are screwed to the upper surface of the packaging film cutting machine body, and a negative pressure pipe penetrates through the inside of the left fixing plate.

[0008] Further, a material guiding roller is installed at the upper end of the packaging film cutting machine body through a bracket; and the material guiding roller is located at the rear side end of the cutting adjustment rod, and a negative pressure cavity is formed inside the cutting adjustment rod.

[0009] Further, a positioning groove is provided on the upper surface of the cutting adjustment rod, and the lower surface of the positioning pressing plate is pressed against the groove surface of the positioning groove through a rubber pad.

[0010] Further, an installation frame is welded to the front end face of the adjustment block, the cutting knife is fixed to the inside of the installation frame through a fixing bolt, and limiting rings are fixed to the left and right sides of the auxiliary roller.

[0011] Further, the negative pressure pump, the negative pressure pipe, the cutting adjustment rod, the adjustment block, the auxiliary roller, the positioning pressing plate and the cutting knife constitute an adjustable cutting mechanism of the packaging film cutting machine body.

[0012] The beneficial effect of the present utility model is that the adjustable cutting mechanism for packaging film processing of the present utility model uses the adjustment block to install with the cutting knife. By moving the adjustment block arbitrarily on the surface of the cutting adjustment rod, the cutting width of the packaging film is adjusted, so that the negative pressure pump firmly adsorbs the adjustment block in the adsorption groove of the cutting adjustment rod to fix the cutting position of the cutting knife, which is convenient to improve the adjustment accuracy of the packaging film cutting mechanism, strengthen the width adjustment effect of the packaging film cutting mechanism, and at the same time ensure the stability of the cutting of the adjustable cutting mechanism. Description of the Drawings

[0013] Figure 1 It is a front view structural schematic diagram of the adjustable cutting mechanism for packaging film processing according to an embodiment of the present utility model.

[0014] Figure 2 It is a front view sectional connection structural schematic diagram of the adjustable cutting mechanism according to an embodiment of the present utility model.

[0015] Figure 3 It is a front view partial sectional structural schematic diagram of the adjustable cutting mechanism according to an embodiment of the present utility model.

[0016] Figure 4 It is a side view sectional connection structural schematic diagram of the adjustable cutting mechanism according to an embodiment of the present utility model.

[0017] In the figure: 1. Packaging film cutting machine body; 11. Feeding roller; 2. Negative pressure pump; 21. Negative pressure pipe; 3. Cutting adjustment rod; 31. Left fixing plate; 32. Adsorption groove; 33. Right fixing plate; 34. Positioning groove; 35. Negative pressure chamber; 4. Cutting knife; 41. Distance sensor; 42. Fixing bolt; 43. Mounting frame; 5. Adjusting block; 51. Auxiliary roller; 52. Limiting ring; 53. Screwed column; 54. Positioning pressing plate; 55. Rubber pad. Detailed implementation mode

[0018] Refer to Figures 1 to 4 As shown in the figure, the utility model provides an adjustable cutting mechanism for packaging film processing, including: a packaging film cutting machine body 1, a cutting adjustment rod 3 and a cutting knife 4. A cutting adjustment rod 3 is fixed on the upper end surface of the packaging film cutting machine body 1, and cutting knives 4 are equidistantly distributed at the front end of the packaging film cutting machine body 1.

[0019] The left end cavity of the cutting adjustment rod 3 is connected to a negative pressure pump 2 through a negative pressure pipe 21. Adsorption grooves 32 are arranged on the front and rear surfaces of the cutting adjustment rod 3. An adjusting block 5 is sleeved on the surface of the cutting adjustment rod 3. The front end of the adjusting block 5 is connected to the cutting knife 4 through a mounting frame 43. A distance sensor 41 is fixed on the upper end of the mounting frame 43. An auxiliary roller 51 is movably connected to the outer ring surface of the adjusting block 5. The inner side of the adjusting block 5 is connected to a positioning pressing plate 54 through a screwed column 53.

[0020] When cutting the processed and formed packaging film, first select the corresponding number of adjusting blocks 5 according to the number of cuts required for the packaging film. Move the adjusting block 5 on the surface of the cutting adjustment rod 3 left and right to drive the cutting knife 4 to move left and right. When moving, adjust the positions of multiple groups of adjusting blocks 5 according to the numerical changes detected by the distance sensor 41. When the position of a group of adjusting blocks 5 is adjusted, rotate the screwed column 53 to press the adjusting block 5 tightly on the cutting adjustment rod 3. Then adjust the next group of adjusting blocks 5. After all adjustments are completed in sequence, turn on the negative pressure pump 2 to make the adsorption grooves 32 of the cutting adjustment rod 3 firmly adsorb the adjusting blocks 5. Make the packaging film pass through the lower end of the adjusting block 5, and the adjusting block 5 can cut it.

[0021] In this embodiment, a negative pressure pump 2 is supported and fixed on the left side of the packaging film cutting machine body 1. The left and right ends of the cutting adjustment rod 3 are embedded and connected with a left fixing plate 31 and a right fixing plate 33. The lower ends of the left fixing plate 31 and the right fixing plate 33 are screwed to the upper surface of the packaging film cutting machine body 1. A negative pressure pipe 21 penetrates through the left fixing plate 31.

[0022] As a preferred implementation mode, the negative pressure pump 2 makes the adsorption grooves 32 of the cutting adjustment rod 3 generate negative pressure suction through the negative pressure pipe 21, which is convenient for fixing the adjusting blocks 5 with adjusted positions on the rod. By removing the right fixing plate 33, the number of adjusting blocks 5 sleeved on the surface of the cutting adjustment rod 3 can be increased or decreased.

[0023] In this embodiment, a guide roller 11 is installed at the upper end of the packaging film cutting machine body 1 through a bracket; and the guide roller 11 is located at the rear end of the cutting adjustment rod 3, and a negative pressure cavity 35 is formed inside the cutting adjustment rod 3. A positioning groove 34 is provided on the upper surface of the cutting adjustment rod 3, and the lower surface of the positioning pressure plate 54 is pressed against the groove surface of the positioning groove 34 through a rubber pad 55.

[0024] As a preferred embodiment, the guide roller 11 facilitates the transmission of the packaging film to the lower end of the cutting knife 4. The negative pressure cavity 35 generates a negative pressure suction force on the adsorption groove 32, firmly adsorbing the sleeved adjustment block 5 to ensure the stability of the adjustment block 5 during the cutting process without displacement. The positioning pressure plate 54 facilitates pressing the adjustment block 5 against the surface of the cutting adjustment rod 3, preventing the adjustment block 5 adjacent to the adjustment block 5 from causing the adjusted adjustment block 5 to shift.

[0025] In this embodiment, an installation frame 43 is welded to the front end surface of the adjustment block 5, and the cutting knife 4 is fixed to the inside of the installation frame 43 through a fixing bolt 42. Limit rings 52 are fixed to the left and right sides of the auxiliary roller 51.

[0026] As a preferred embodiment, the auxiliary roller 51 facilitates the transmission of the packaging film conveyed from the guide roller 11 to the cutting edge of the cutting knife 4 at the front side, so that the packaging film passed by the cutting knife 4 is cut into an appropriate width.

[0027] In this embodiment, the negative pressure pump 2, the negative pressure pipe 21, the cutting adjustment rod 3, the adjustment block 5, the auxiliary roller 51, the positioning pressure plate 54, and the cutting knife 4 constitute an adjustable cutting mechanism of the packaging film cutting machine body 1.

[0028] As a preferred embodiment, the adjustable cutting mechanism of the packaging film cutting machine body 1 facilitates improving the adjustment accuracy of the packaging film cutting mechanism, enhancing the width adjustment effect of the packaging film cutting mechanism, and ensuring the stability of the adjustable cutting mechanism during cutting.

[0029] The adjustable cutting mechanism for packaging film processing of the present utility model can effectively solve the problem of limited width adjustment effect of packaging film cutting in the prior art, facilitate improving the adjustment accuracy of the packaging film cutting mechanism, enhancing the width adjustment effect of the packaging film cutting mechanism, and ensuring the stability of the adjustable cutting mechanism during cutting, and is applicable to the adjustable cutting mechanism for packaging film processing.

Claims

1. An adjustable cutting mechanism for packaging film processing, comprising: A packaging film cutting machine body (1), a cutting adjustment rod (3), and a cutting knife (4). The upper end surface of the packaging film cutting machine body (1) is fixed with the cutting adjustment rod (3), and the cutting knives (4) are equidistantly distributed at the front end of the packaging film cutting machine body (1). It is characterized in that: The left end opening of the cutting adjustment rod (3) is connected to a negative pressure pump (2) through a negative pressure pipe (21). Adsorption grooves (32) are arranged on the front and rear surfaces of the cutting adjustment rod (3). An adjustment block (5) is sleeved on the surface of the cutting adjustment rod (3). The front end of the adjustment block (5) is connected to the cutting knife (4) through a mounting bracket (43). A distance sensor (41) is fixed to the upper end of the mounting bracket (43). An auxiliary roller (51) is movably connected to the outer ring surface of the adjustment block (5). The inner side of the adjustment block (5) is connected to a positioning pressure plate (54) through a screw column (53).

2. The adjustable cutting mechanism for packaging film processing according to claim 1, wherein, The negative pressure pump (2) is supported and fixed on the left side of the packaging film cutting machine body (1). The left and right ends of the cutting adjustment rod (3) are embedded and connected with a left fixing plate (31) and a right fixing plate (33).

3. The adjustable cutting mechanism for packaging film processing according to claim 2, characterized in that, The lower ends of the left fixing plate (31) and the right fixing plate (33) are screwed to the upper surface of the packaging film cutting machine body (1). The negative pressure pipe (21) passes through the inside of the left fixing plate (31).

4. An adjustable cutting mechanism for packaging film processing according to claim 1, characterized in that, A guide roller (11) is installed on the upper end of the packaging film cutting machine body (1) through a bracket; and the guide roller (11) is located at the rear end of the cutting adjustment rod (3). A negative pressure chamber (35) is opened inside the cutting adjustment rod (3).

5. The adjustable cutting mechanism for packaging film processing according to claim 1, characterized in that, A positioning groove (34) is arranged on the upper surface of the cutting adjustment rod (3). The lower surface of the positioning pressure plate (54) is pressed against the groove surface of the positioning groove (34) through a rubber pad (55).

6. The adjustable cutting mechanism for packaging film processing according to claim 1, characterized in that, The front end surface of the adjustment block (5) is welded with a mounting bracket (43). The cutting knife (4) is fixed to the inside of the mounting bracket (43) through a fixing bolt (42). Limit rings (52) are fixed to the left and right sides of the auxiliary roller (51).

7. The adjustable cutting mechanism for packaging film processing according to claim 1, wherein, The negative pressure pump (2), the negative pressure pipe (21), the cutting adjustment rod (3), the adjustment block (5), the auxiliary roller (51), the positioning pressure plate (54), and the cutting knife (4) constitute an adjustable cutting mechanism of the packaging film cutting machine body (1).

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