CN216803678U - Plastic film's cutting device - Google Patents

Abstract

The application relates to a cutting device of a plastic film, which relates to the technical field of plastic film production and comprises a rack, wherein a cutting mechanism for cutting the plastic film is arranged on the rack, the cutting mechanism comprises a feed roller, and the feed roller is rotationally arranged on the rack and is used for guiding the plastic film in; the discharging roller is rotationally arranged on the rack, and the plastic film bypasses the discharging roller and is led out; the cutter, the cutter setting just is located between feed roller and the discharge roller in the frame, and the cutter cuts plastic film. This application is walked around the discharge roll after plastic film passes through the feed roll leading-in and is derived, and the cutter setting cuts plastic film between feed roll and discharge roll to need not the manual work and cut, improved plastic film's cutting accuracy.

Description

Plastic film's cutting device

Technical Field

The application relates to the technical field of plastic film production, in particular to a cutting device for plastic films.

Background

Plastic film is a common packaging material in modern packaging industry, and is generally made of polyethylene, polypropylene, and other resins. The plastic film is widely applied to the fields of food, medicine, chemical industry and the like, and brings great convenience to life of people.

In the related art, after a plastic film is produced, the plastic film is usually wound on a bobbin shaft, and then when the plastic film needs to be used, the plastic film is pulled out from the bobbin shaft, and then the plastic film is manually cut according to the required length, however, the manual cutting precision is not high, the condition that the cutting opening of the plastic film is not flat is easy to occur, and therefore the use performance of the plastic film is reduced.

SUMMERY OF THE UTILITY MODEL

In order to improve plastic film's cutting accuracy, this application provides a plastic film's cutting device.

The application provides a plastic film's cutting device adopts following technical scheme:

the utility model provides a plastic film's cutting device, includes the frame, be provided with in the frame and be used for carrying out the mechanism that cuts to plastic film, it includes to cut the mechanism:

the feeding roller is rotatably arranged on the rack and is used for guiding the plastic film;

the discharging roller is rotationally arranged on the rack, and the plastic film bypasses the discharging roller and is led out;

the cutter is arranged on the rack and located between the feeding roller and the discharging roller, and the cutter cuts the plastic film.

Through adopting above-mentioned technical scheme, plastic film walks around the discharge roller after leading-in through the feed roller and derives, and the cutter setting cuts plastic film between feed roller and discharge roller to need not the manual work and cut, improved plastic film's cutting precision.

Optionally, the cutter passes through the horizontal setting that slides of moving mechanism in the frame, the removal subassembly includes:

the sliding rod is arranged on the rack and is positioned between the feeding roller and the discharging roller;

the rotary screw rod is rotationally connected to the rack;

the cutter holder is slidably arranged on the sliding rod and is in threaded connection with the rotating screw rod, and the cutter is arranged on the cutter holder;

and the rotating motor is arranged on the rack, and an output shaft of the rotating motor is connected with the rotating screw rod.

When plastic films with different widths are cut, the position of the cutter in the horizontal direction needs to be adjusted;

through adopting above-mentioned technical scheme, rotate the motor start-up and drive and rotate the lead screw and rotate, rotate the lead screw and rotate and drive the blade holder horizontal migration on the slide bar, the blade holder removes and drives the cutter and slides, and the cutter removes behind the target position, stops to rotate the motor to accomplish the adjustment to the cutter position, be convenient for cut the plastic film of different width.

Optionally, be provided with the adjustment mechanism that is used for adjusting cutter vertical position on the blade holder, adjustment mechanism includes:

the cutter holder is provided with a vertical sliding hole, and the adjusting screw horizontally penetrates through the sliding hole to be in threaded connection with the cutter;

and the fixing nut is in threaded connection with the adjusting screw rod and abuts against the cutter tightly.

By adopting the technical scheme, the movable plastic film bypasses the feeding roller and the discharging roller, the fixing nut is screwed to be separated from the adjusting screw rod, the adjusting screw rod is moved to drive the cutter to move, the cutter moves to cut the plastic film, the fixing nut is screwed to be in threaded connection with the adjusting screw rod and tightly abuts against the cutter, after the cutting is completed, the fixing nut is screwed to be separated from the adjusting screw rod, the adjusting screw rod is moved back to the original position, so that the adjustment of the position of the cutter is completed, and the plastic film is convenient to cut.

Optionally, a collecting box for collecting the cut film waste is arranged on the rack, an upper opening of the collecting box is open and is communicated with the negative pressure source, and the collecting box is used for sucking and collecting the cut film waste.

By adopting the technical scheme, the cut film waste is guided out to the upper opening of the collecting box through the discharging roller, and the negative pressure source is started to suck the film waste into the collecting box for collection and treatment, so that the probability of environmental pollution caused by scattering of the film waste in the working environment is reduced.

Optionally, a guiding mechanism for guiding the cut film waste into the collecting box is arranged on the rack, and the guiding mechanism includes:

the driving cylinder is arranged on the rack;

the mounting rack is arranged on the piston rod of the driving cylinder;

the guide roller is rotatably arranged on the mounting frame and is abutted to the cut film waste.

Through adopting above-mentioned technical scheme, drive actuating cylinder and start to drive and drive the mounting bracket and remove, the mounting bracket removes and drives the guide roll and removes, and the guide roll removes to contradict with the film waste material and with the leading-in collecting box of film waste material in to the probability outside the collecting box has been reduced to the film waste material.

Optionally, a flattening mechanism for flattening the plastic film on the feeding roller is arranged on the frame, and the flattening mechanism includes:

the connecting block is horizontally arranged on the rack in a sliding manner;

the two tensioning rollers are rotatably connected to the connecting block and mutually matched to clamp the plastic film;

and the locking assembly is arranged on the rack and is used for locking the horizontal position of the connecting block.

Through adopting above-mentioned technical scheme, with the taut plastic film of two straining rolls, unblock locking Assembly, the removal connecting block drives two straining rolls and moves, and two straining rolls move and tear plastic film flat to accomplish the flat exhibition work to plastic film, reduced plastic film because the fold and lead to the probability of cutting accuracy deviation.

Optionally, the locking assembly includes:

the locking screw is rotationally connected to the rack and is in threaded connection with the connecting block;

the locking rod is rotatably connected to the rack, a fixing groove is formed in the locking rod, and the locking screw is in inserting fit with the fixing groove.

By adopting the technical scheme, the locking rod is rotated to be separated from the locking screw rod, the locking screw rod is screwed to rotate to drive the connecting block to move, and after the connecting block moves to the target position, the locking rod is rotated to enable the locking screw rod to be in splicing fit with the fixed groove, so that the connecting block is moved and locked.

Optionally, two the take-up roller all sets up on the connecting block through the vertical slip of removal subassembly, the removal subassembly includes:

the two moving blocks are vertically arranged on the connecting block in a sliding manner, and the two tensioning rollers are respectively and rotatably connected to the two moving blocks;

the movable screw rod is rotatably connected to the connecting block and is in a vertical state, two sections of threads with opposite spiral lines are arranged on the movable screw rod, and the two movable blocks are respectively positioned on the two sections of threads with opposite spiral lines;

the fixing piece is used for fixing the rotation direction of the movable screw rod.

Through adopting above-mentioned technical scheme, unblock fixed part, the rotation removes the lead screw and drives two movable blocks and be close to each other, and two movable blocks move when pressing from both sides tight plastic film, lock the fixed part, then move the connecting block and drive two straining rolls and flare-out plastic film to accomplish two straining rolls and to the work of flare-out of plastic film.

Optionally, the fixing member includes:

the fixed disc is arranged on the movable screw rod;

and the fixed screw is in threaded connection with the fixed disc and abuts against the connecting block.

Through adopting above-mentioned technical scheme, twist and move the clamping screw and break away from with the connecting block, rotate the fixed disk and drive the removal lead screw and rotate and adjust two take-up roller positions, adjust the back of accomplishing, twist and move clamping screw and pass the fixed disk and support tightly on the connecting block to the completion is fixed to removal lead screw turned position.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the plastic film is led in through the feeding roller and then led out by bypassing the discharging roller, and the cutter is arranged between the feeding roller and the discharging roller to cut the plastic film, so that manual cutting is not needed, and the cutting precision of the plastic film is improved;

2. the rotary motor is started to drive the rotary screw rod to rotate, the rotary screw rod rotates to drive the cutter holder to horizontally move on the sliding rod, the cutter holder moves to drive the cutter to slide, and the rotary motor is stopped after the cutter moves to a target position, so that the adjustment of the position of the cutter is completed, and plastic films with different widths can be conveniently cut;

3. through the unlocking fixing piece, the movable lead screw is rotated to drive the two movable blocks to be close to each other, the fixing piece is locked when the two movable blocks move to tightly clamp the plastic film, and then the movable connecting block drives the two tensioning rollers to flatten the plastic film, so that the plastic film can be flattened by the two tensioning rollers.

Drawings

FIG. 1 is a schematic perspective view of the present application;

FIG. 2 is an enlarged schematic view of section A of FIG. 1;

FIG. 3 is a schematic structural view of a flattening mechanism of the present application;

fig. 4 is an enlarged schematic view of a portion B in fig. 1.

Reference numerals: 1. a frame; 11. a sliding hole; 12. moving the hole; 13. a collection box; 14. a travel bar; 2. a cutting mechanism; 21. a feed roll; 22. a discharging roller; 23. a cutter; 3. a moving mechanism; 31. a slide bar; 32. rotating the screw rod; 33. a tool apron; 34. rotating the motor; 4. an adjustment mechanism; 41. adjusting the screw rod; 5. a flattening mechanism; 51. connecting blocks; 52. a take-up roll; 53. a locking assembly; 54. locking the screw rod; 55. a locking lever; 6. a moving assembly; 61. a moving block; 62. moving the screw rod; 63. a fixing member; 64. fixing the disc; 65. fixing the screw rod; 66. fixing grooves; 7. a guide mechanism; 71. a driving cylinder; 72. a mounting frame; 73. and a guide roller.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses plastic film's cutting device.

Referring to fig. 1, the cutting device for plastic films includes a frame 1, and a cutting mechanism 2 for cutting the plastic films is disposed on the frame 1.

Referring to fig. 1 and 2, the cutting mechanism 2 includes a feed roller 21, a discharge roller 22, and a cutter 23. The feeding roller 21 and the discharging roller 22 are both rotationally connected to the frame 1, the axial directions of the feeding roller 21 and the discharging roller 22 are parallel, and the plastic film sequentially bypasses the feeding roller 21 and the discharging roller 22. The cutting knife 23 is horizontally arranged on the frame 1 in a sliding manner through the moving mechanism 3 and is positioned between the feed roller 21 and the discharge roller 22.

Referring to fig. 1 and 2, the moving mechanism 3 includes a sliding rod 31, a rotating screw 32, a tool holder 33 and a rotating motor 34, the sliding rod 31 is fixedly connected to the frame 1 between the feed roller 21 and the discharge roller 22, and the axial direction of the sliding rod 31 is parallel to the axial direction of the feed roller 21 and the discharge roller 22. The rotating screw rod 32 is rotatably connected to the frame 1 and located above the sliding rod 31, and the tool apron 33 is horizontally slidably mounted on the sliding rod 31 along the axial direction of the sliding rod 31 and is in threaded connection with the rotating screw rod 32. The cutter 23 is detachably arranged on the cutter holder 33 through the adjusting mechanism 4. A rotating motor 34 is fixedly connected on the frame 1 and an output shaft is fixedly connected with the rotating screw rod 32

Referring to fig. 1 and 2, the adjusting mechanism 4 is used for adjusting the vertical position of the cutting knife 23 on the knife holder 33, and the adjusting mechanism 4 comprises an adjusting screw 41 and a fixing nut 42. The knife holder 33 is provided with a vertical sliding hole 11 on the side wall close to the rotating motor 34, and the adjusting screw 41 horizontally penetrates through the sliding hole 11 to be in threaded connection with the cutter 23. The head of the adjusting screw 41 abuts against the side wall of the tool apron 33 close to the rotating motor 34. The fixing nut 42 is screwed on the adjusting screw 41 and abuts against a side wall of the tool apron 33 facing away from the rotating motor 34.

Referring to fig. 1 and 3, a flattening mechanism 5 for flattening the plastic film on the feed roller 21 is disposed on the frame 1, and the flattening mechanism 5 includes a connecting block 51, two tensioning rollers 52 and a locking assembly 53. The frame 1 is fixedly connected with a movable rod 14, the movable rod 14 is positioned on one side of the feed roller 21 far away from the discharge roller 22, and the axial direction of the movable rod is parallel to the axial direction of the feed roller 21. The connecting block 51 is horizontally slidably mounted on the moving rod 14 in the axial direction of the moving rod 14.

Referring to fig. 1 and 3, the two tensioning rollers 52 are vertically slidably disposed on the connecting block 51 through the moving assembly 6, and the moving assembly 6 includes two moving blocks 61, a moving screw 62 and a fixing member 63. A vertical moving hole 12 is formed in the side wall of the connecting block 51 close to the rotating motor 34, and the two moving blocks 61 are slidably mounted on the moving hole 12. Two tensioning rollers 52 are rotatably mounted on the side walls of the two moving blocks 61 close to the plastic film and respectively located above and below the plastic film for clamping the plastic film.

Referring to fig. 3, the movable screw 62 is rotatably mounted on the connecting block 51 and located in the movable hole 12, and the movable screw 62 is in a vertical state and has a top end vertically extending upward out of the connecting block 51. Two sections of threads with opposite spiral lines are arranged on the movable screw rod 62, and the two movable blocks 61 are respectively in threaded connection with the two sections of threads with opposite spiral lines. The fixing member 63 is used for fixing the rotation direction of the moving screw 62, and the fixing member 63 includes a fixed disk 64 and a fixed screw 65. The fixed plate 64 is fixedly connected to the top end of the moving screw 62. The fixing screw 65 is screwed on the fixing plate 64 and vertically penetrates through the fixing plate 64 downwards to abut against the upper surface of the connecting block 51.

Referring to fig. 3 and 4, a locking assembly 53 is used to lock the horizontal position of the connection block 51, and the locking assembly 53 includes a locking screw 54 and a locking lever 55. The locking screw 54 is rotatably connected to the frame 1 with its axial direction parallel to the axial direction of the moving rod. The locking screw 54 is threadedly coupled to the connecting block 51. One end of the locking rod 55 is rotatably connected to the frame 1, a fixing groove 66 is formed in a side wall of the other end of the locking rod 55 close to the locking screw 54, and after the locking screw 54 rotates to a target position, the locking rod 55 rotates to enable the locking screw 54 to be in inserted fit with the fixing groove 66, so that the rotation angle of the locking screw 54 is locked.

Referring to fig. 3, the fixing screw 65 is screwed to be separated from the connecting block 51, the fixed disc 64 is rotated to drive the movable screw 62 to rotate, the movable screw 62 rotates to drive the two movable blocks 61 to move, the two movable blocks 61 move to drive the two tensioning rollers 52 to move and clamp the plastic film, and after the two tensioning rollers 52 clamp the plastic film, the fixing screw 65 is screwed to abut against the upper surface of the connecting block 51. Meanwhile, the locking rod 55 is rotated to be separated from the locking screw 54, the locking screw 54 is rotated to drive the connecting block 51 to move, and the connecting block 51 moves to drive the two tensioning rollers 52 to tear the plastic film flat.

Referring to fig. 1, a collecting box 13 for collecting the cut film waste is fixedly connected to the frame 1, and the collecting box 13 is located on the side of the discharging roller 22 away from the feeding roller 21. The collecting box 13 is positioned below the discharging roller 22, and the upper opening of the collecting box is in an opening state. The bottom end of the collecting box 13 is communicated with a negative pressure source.

Referring to fig. 1, a guide mechanism 7 for guiding the cut film waste into the collection box 13 is provided on the frame 1, and the guide mechanism 7 includes a driving cylinder 71, a mounting bracket 72, and a guide roller 73. The driving cylinder 71 is fixedly connected to the frame 1 and located on one side of the discharging roller 22 away from the feeding roller 21, the driving cylinder 71 is in an inclined state, and the height of one end of the driving cylinder 71 away from the discharging roller 22 is higher than the height of one end of the driving cylinder 71 close to the discharging roller 22. The mounting bracket 72 is fixedly connected to one end of the piston rod of the driving cylinder 71 close to the discharging roller 22. The guide rollers 73 are rotatably mounted on opposite inner sidewalls of the mounting frame 72.

Referring to fig. 1, the driving cylinder 71 is started to drive the guide roller 73 to move, the guide roller 73 moves to abut against the film waste and guides the film waste into the upper opening of the collection box 13, meanwhile, the negative pressure source is started to pump air to the collection box 13, and the collection box 13 sucks the film waste to be collected.

The working principle of the embodiment of the application is as follows:

the plastic film bypasses the discharging roller 22 to be led out after being guided in by the feeding roller 21, the fixing nut 42 is screwed to be separated from the adjusting screw rod 41, the adjusting screw rod 41 is moved to drive the cutter 23 to move, the moving cutter 23 cuts the plastic film, and the fixing nut 42 and the adjusting screw rod 41 are screwed to be in threaded connection and tightly abut against the cutter 23, so that manual cutting is not needed, and the cutting precision of the plastic film is improved.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (9)

1. A cutting device of plastic film is characterized in that: including frame (1), be provided with in frame (1) and be used for cutting mechanism (2) that cut to plastic film, it includes to cut mechanism (2):

the feeding roller (21) is rotatably arranged on the frame (1) and is used for guiding the plastic film;

the discharging roller (22), the discharging roller (22) is rotatably arranged on the rack (1), and the plastic film bypasses the discharging roller (22) and then is led out;

the cutting knife (23) is arranged on the rack (1) and located between the feeding roller (21) and the discharging roller (22), and the cutting knife (23) cuts the plastic film.

2. A plastic film slitting device as defined in claim 1, wherein: cutter (23) through moving mechanism (3) horizontal slip set up in frame (1), moving mechanism (3) include:

the sliding rod (31) is arranged on the rack (1) and is positioned between the feeding roller (21) and the discharging roller (22);

the rotary screw rod (32), the rotary screw rod (32) is rotationally connected to the rack (1);

the cutter holder (33), the cutter holder (33) is slidably mounted on the sliding rod (31) and is in threaded connection with the rotating screw rod (32), and the cutter (23) is arranged on the cutter holder (33);

the rotating motor (34) is arranged on the rack (1), and an output shaft of the rotating motor (34) is connected with the rotating screw rod (32).

3. A plastic film slitting device as defined in claim 2, wherein: be provided with on blade holder (33) and be used for carrying out adjustment mechanism (4) adjusted cutter (23) vertical position, adjustment mechanism (4) include:

the cutter holder (33) is provided with a vertical sliding hole (11), and the adjusting screw rod (41) horizontally penetrates through the sliding hole (11) to be in threaded connection with the cutter (23);

and the fixing nut is in threaded connection with the adjusting screw rod (41) and is tightly abutted against the cutter (23).

4. A plastic film slitting device as defined in claim 1, wherein: the film waste collecting device is characterized in that a collecting box (13) used for collecting cut film waste is arranged on the rack (1), the upper opening of the collecting box (13) is in an open state and is communicated with a negative pressure source, and the collecting box (13) is used for sucking and collecting the cut film waste.

5. A plastic film slitting device as defined in claim 1, wherein: the frame (1) is provided with a guide mechanism (7) for guiding the cut film waste into a collection box (13), and the guide mechanism (7) comprises:

the driving air cylinder (71), the said driving air cylinder (71) is set up on framework (1);

the mounting rack (72) is arranged on a piston rod of the driving cylinder (71);

the guide roller (73) is rotatably arranged on the mounting frame (72) and is abutted to the cut film waste.

6. A plastic film slitting device as defined in claim 1, wherein: be provided with on frame (1) and be used for carrying out the flattening mechanism (5) of flattening to the plastic film on feed roller (21), flattening mechanism (5) include:

the connecting block (51), the said connecting block (51) slips horizontally and sets up on the framework (1);

the two tensioning rollers (52) are rotatably connected to the connecting block (51) and are matched with each other to clamp the plastic film;

the locking assembly (53) is arranged on the frame (1) and is used for locking the horizontal position of the connecting block (51).

7. A cutting device for plastic film as claimed in claim 6, characterized in that: the locking assembly (53) comprises:

the locking screw rod (54) is rotationally connected to the rack (1) and is in threaded connection with the connecting block (51);

locking lever (55), locking lever (55) rotate to be connected on frame (1), fixed slot (66) have been seted up on locking lever (55), locking screw (54) and fixed slot (66) are pegged graft and are cooperated.

8. A cutting device for plastic film as claimed in claim 6, characterized in that: the two tensioning rollers (52) are vertically arranged on the connecting block (51) in a sliding manner through the moving assembly (6), and the moving assembly (6) comprises:

the two moving blocks (61) are vertically arranged on the connecting block (51) in a sliding manner, and the two tensioning rollers (52) are respectively and rotatably connected to the two moving blocks (61);

the movable screw rod (62) is rotatably connected to the connecting block (51) and is in a vertical state, two sections of threads with opposite spiral lines are arranged on the movable screw rod (62), and the two movable blocks (61) are respectively positioned on the two sections of threads with opposite spiral lines;

and the fixing piece (63) is used for fixing the rotating direction of the movable screw rod (62).

9. A plastic film slitting device as defined in claim 8, wherein: the fixing member (63) includes:

the fixed disc (64), the said fixed disc (64) is set up on moving the lead screw (62);

and the fixing screw rod (65) is in threaded connection with the fixing disc (64) and abuts against the connecting block (51).

Images