CN212147741U

CN212147741U - Cutting machine for plastic bag production

Info

Publication number: CN212147741U
Application number: CN202020232746.6U
Authority: CN
Inventors: 陈国辉
Original assignee: Chongqing Longsheng Packaging Products Co ltd
Current assignee: Chongqing Longsheng Packaging Products Co ltd
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2020-12-15
Anticipated expiration: 2030-02-28

Abstract

The utility model relates to a plastic bag processing field especially relates to guillootine is used in plastic bag production, including the membrane roller, the transfer roller, first conveyer belt, the second conveyer belt, cut the sword and be used for the drive to cut the drive assembly of the vertical reciprocating motion of sword, be equipped with the cushion between the discharge end of first conveyer belt and the feed end of second conveyer belt, cut the sword and be located the top of cushion, all be equipped with the subassembly of breathing in between the area face of first conveyer belt and between the area face of second conveyer belt, the subassembly of breathing in includes the aspirator pump, all is equipped with a plurality of through-hole on the area face of first conveyer belt and the area face of second conveyer belt. This scheme has improved the stability of conveyer belt conveying plastic film.

Description

Cutting machine for plastic bag production

Technical Field

The utility model relates to a plastic bag processing field especially relates to guillootine is used in plastic bag production.

Background

In the production and processing of plastic bags, the plastic film needs to be cut. Cutting machines are used in the prior art to cut plastic films. The existing cutting machine comprises a conveying belt and a cutting knife, wherein the conveying belt conveys a plastic film rolled on a film roller to the position below the cutting knife, and the cutting knife cuts the plastic film. Because the plastic film is thin and light, and the plastic film roll has certain winding force on the film roller, when the plastic film is horizontally conveyed by the belt surface of the conveying belt, the plastic film and the belt surface of the conveying belt are easy to relatively move, so that the plastic film is conveyed by the conveying belt unstably, the belt surface of the conveying belt and the plastic film are easy to relatively slip, and the plastic film is not easy to convey below the cutting knife.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a guillootine is used in plastic bag production to improve the stability of conveyer belt conveying plastic film.

In order to achieve the above purpose, the technical scheme of the utility model is that: guillootine is used in plastic bag production, including the membrane roller, the transfer roller, first conveyer belt, the second conveyer belt, cut the sword and be used for the drive to cut the drive assembly of the vertical reciprocating motion of sword, be equipped with the cushion between the discharge end of first conveyer belt and the feed end of second conveyer belt, it is located the top of cushion to cut the sword, all be equipped with the subassembly of breathing in between the upper and lower band surface of first conveyer belt and the upper and lower band surface of second conveyer belt, the subassembly of breathing in includes the aspirator pump, all be equipped with a plurality of through-hole on the band surface of first conveyer belt and the band surface of second conveyer belt.

The working principle and the effect of the scheme are as follows: and the film roller is wound with a plastic film to be cut. The conveying roller is used for conveying the plastic film to the first conveying belt, the first conveying belt conveys the plastic film to the top of cushion and the second conveying belt, the drive assembly drives the vertical reciprocating motion of cutting knife, and when the cutting knife moves downwards, the cutting knife offsets with the cushion to cut off the plastic film. The cut plastic film is conveyed to other places under the conveyance of the second conveyor belt.

The aspirator pump is used for breathing in, all be equipped with a plurality of through-hole on the area face of first conveyer belt and the area face of second conveyer belt, so when the aspirator pump breathes in, the suction that the aspirator pump produced can be through the through-hole effect on frivolous plastic film, make the plastic film tightly adsorb on the area face of first conveyer belt and the area face of second conveyer belt, first conveyer belt is when conveying the plastic film like this, relative movement can not take place between the area face of plastic film and first conveyer belt, the plastic film conveys on first conveyer belt relatively stably, be convenient for make the plastic film convey to the cushion direction. The cut plastic film on the second conveyor belt is also adsorbed on the belt surface of the second conveyor belt, and the plastic film is conveyed on the second conveyor belt more stably.

Furthermore, the air suction assembly further comprises an air suction disc, a plurality of air holes are formed in the top of the air suction disc, the air suction disc is arranged in a hollow mode, and the air suction pump is communicated with the air suction disc. From this, be equipped with a plurality of suction holes on the suction disc, the aspirator pump inhales through the suction disc, compares exclusive use aspirator pump and inhales, can increase the inspiratory active area, has increased the area that the plastic film is adsorbed on corresponding area, and the plastic film is located corresponding area more stable on.

Further, drive assembly includes vertical movement's sliding block and the cam that is used for driving sliding block vertical movement, cuts the sword and is located the bottom of sliding block, fixedly connected with fixed plate on the sliding block, and the top of fixed plate is equipped with the fixed block, is connected with the extension spring between fixed block and the fixed plate. From this, when the cam rotated, when the protrusion end of cam offseted with the sliding block, the sliding block drove and cuts sword and move down, and the distance grow between fixed block and the fixed plate simultaneously, the extension spring is elongated and hold power. When the protruding end of the cam is far away from the sliding block, the tension spring drives the sliding block to reset under the action of the elastic force of the tension spring, and the sliding block drives the cutting knife to move upwards and reset. From this, through this scheme realized cutting the vertical reciprocating motion of sword. And, because the cam rotates in succession, the protruding end of cam can not continuously be used in on the sliding block, so cut the sword and can separate immediately after the cushion offsets, cut the sword and can not stop the time of overlength on the cushion to can not hinder the plastic film and convey between first conveyer belt and second conveyer belt.

Further, vertical sliding connection has the sliding part on the bottom of sliding block, is connected with the pressure spring between sliding part and the sliding block, cuts the sword and is located the bottom of sliding part. From this, after cutting sword and cushion offset, the sliding block receives the offset of cam and can continue downstream, and the distance between sliding block and the sliding part diminishes this moment, and the pressure spring is compressed, and the pressure spring produces pressure, and the pressure spring promotes the sliding part downwards to increased the pressure that cuts the sword, be favorable to cutting the sword and cut off the plastic film. And so set up, can avoid hindering the sliding block downstream because of cutting sword and cushion counterbalance, even if cut the sword and offset with the cushion, because the pressure spring has the cushioning effect, the sliding block still can downstream under the effect of cam.

Further, be equipped with fixed fixture block and removal fixture block on the sliding part, fixed fixture block fixed connection is on the sliding part, removes fixture block lateral sliding connection on the sliding part, is connected with the connecting piece between fixed fixture block and the removal fixture block, cuts the sword card between fixed fixture block and removal fixture block. From this, can make fixed fixture block and removal fixture block will cut the sword chucking through the connecting piece, when needs change and cut the sword, through the control connecting piece to make and fix the becoming loose between fixture block and the removal fixture block, and then can take off and change cutting the sword.

Further, a clamping groove is formed in the side face of the top of the cutting knife, the fixed clamping block and the movable clamping block are respectively provided with a protruding portion, and the protruding portions are clamped in the clamping groove. From this, through the bulge card in the draw-in groove, and then realized cutting knife card between fixed fixture block and the removal fixture block.

Further, the connecting piece is a bolt. Through twisting the bolt, thereby can make the removal fixture block remove, and then can adjust the distance between fixed fixture block and the removal fixture block, easy operation is convenient.

Furthermore, the top of the sliding block is fixedly connected with a driven rod, the cam is positioned above the driven rod, and the cam is abutted to the driven rod. Therefore, the cam and the driven rod form a cam mechanism, and when the cam rotates, the cam is abutted against the driven rod to drive the sliding block to vertically move. The follower lever offsets with the cam, compares the sliding block and directly offsets with the cam, and the area of contact of cam and follower lever is less, and the sliding block slides more sensitively.

Furthermore, a knife groove is arranged on the cushion block. When the cutting knife is abutted to the cushion block, the cutting knife is inserted into the knife groove, so that the plastic film is cut more thoroughly by the cutting knife.

Further, a collecting box is arranged below the discharge end of the second conveyor belt. The collecting box is used for collecting the plastic film cut off by the second conveyor belt.

Drawings

Fig. 1 is a partial front sectional view of a cutting machine for producing a plastic bag according to embodiment 1;

FIG. 2 is a top view of a belt face of the first conveyor belt of FIG. 1;

fig. 3 is a partial front sectional view of a cutting machine for producing plastic bags according to embodiment 2;

fig. 4 is a partial front sectional view of a cutting machine for producing plastic bags according to embodiment 3;

fig. 5 is an enlarged view of a in fig. 4.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the film roller comprises a film roller 1, a conveying roller 2, a cushion block 3, a first conveying belt 4, a second conveying belt 5, a suction pump 6, a suction disc 7, an air hole 8, a collecting box 9, a cutting knife 10, a sliding block 11, a fixing plate 12, a tension spring 13, a fixing block 14, a cam 15, a driven rod 16, a belt surface 17, a through hole 18, a sliding part 19, a pressure spring 20, a fixing fixture block 21, a moving fixture block 22, a bolt 23 and a transverse plate 24.

Example 1

Substantially as shown in figures 1-2 of the accompanying drawings: cutting machine is used in plastic bag production, including the frame, rotate the membrane roller 1 of connection in the frame, be located two transfer rollers 2 on 1 right side of membrane roller, be located the first conveyer belt 4 on 2 right sides of transfer roller, be located the second conveyer belt 5 on 4 right sides of first conveyer belt, cut sword 10 and be used for the drive to cut the drive assembly of the vertical reciprocating motion of sword 10. Two 2 vertical distributions of transfer roller, two 2 rotation of transfer roller connect in the frame. First conveyer belt 4 and second conveyer belt 5 all include area 17 and two band pulleys, and the left end of first conveyer belt 4 is the feed end, and the right-hand member is the discharge end. The left end of the second conveyor belt 5 is a feeding end, and the right end of the second conveyor belt is a discharging end. Be equipped with the cushion 3 of welding in the frame between the discharge end of first conveyer belt 4 and the feed end of second conveyer belt 5, the clearance between 4 right-hand members of first conveyer belt and the 5 left ends of second conveyer belt can be filled to cushion 3, can make the plastic film smoothly move to second conveyer belt 5 from first conveyer belt 4 on. The cutting blade 10 is located above the pad block 3, and a cutter groove is formed in the pad block 3, so that the bottom of the cutting blade 10 can be inserted into the cutter groove, thereby cutting the plastic film. All be equipped with the subassembly of breathing in between the upper and lower band surface 17 of first conveyer belt 4 and the upper and lower band surface 17 of second conveyer belt 5, the subassembly of breathing in this embodiment includes through fix with screw aspirator pump 6 and the sucking disc 7 in the frame, and sucking disc 7 is located aspirator pump 6's top, is equipped with a plurality of gas pockets 8 on sucking disc 7's the top, and the inside cavity of sucking disc 7 sets up, through the pipeline intercommunication between aspirator pump 6 and the sucking disc 7. Referring to fig. 2, the belt surface 17 of the first conveyor belt 4 and the belt surface 17 of the second conveyor belt 5 are provided with a plurality of through holes 18. A collecting box 9 is arranged below the discharge end of the second conveyor belt 5.

The drive assembly in this embodiment includes the sliding block 11 that vertical slip set up in the frame and is used for driving cam 15 of sliding block 11 vertical migration, and the concrete sliding connection mode between sliding block 11 and the frame is: a vertical groove is formed in the rack, a sliding block is welded on the sliding block 11, and the sliding block is located in the vertical groove. The driven rod 16 is welded on the top of the sliding block 11, the cam 15 is located above the driven rod 16, the cam 15 is rotatably arranged on the rack through a rotating shaft, a motor for driving the cam 15 to rotate is arranged on the rack, and the cam 15 abuts against the driven rod 16. Cutting knife 10 welds on the bottom of sliding block 11, and welding has fixed plate 12 on the both sides face of sliding block 11, and the top of fixed plate 12 is equipped with two fixed blocks 14 that weld in the frame, is connected with extension spring 13 between fixed block 14 and the fixed plate 12. The frame is provided with a motor which can lead the film roller 1 to rotate anticlockwise. The frame is provided with a motor which enables the first conveyor belt 4 and the second conveyor belt 5 to rotate clockwise.

The specific implementation process is as follows: the film roll 1 is wound with a plastic film to be cut. The plastic film is placed on the first conveyor belt 4, the cam 15 is rotated, the film roller 1 rotates anticlockwise, the first conveyor belt 4 and the second conveyor belt 5 rotate clockwise by controlling the corresponding motor, the suction pump 6 is started, the suction pump 6 sucks air through the suction disc 7, the suction disc 7 generates suction downwards, and therefore the plastic film is adsorbed on the belt surface 17 on the upper side of the first conveyor belt 4. The first conveyor belt 4 conveys the plastic film to the right and the plastic film is moved by the pad 3 onto the second conveyor belt 5. Meanwhile, as the cam 15 rotates, when the protruding end of the cam 15 abuts against the driven rod 16, the sliding block 11 drives the cutting blade 10 to move downward, the sliding block 11 drives the fixed plate 12 to move downward, the distance between the fixed block 14 and the fixed plate 12 becomes larger, and the tension spring 13 is stretched to store power. The cutting blade 10 is inserted into the cutter groove of the pad block 3, and the plastic film is cut by the cutting blade 10. The cut plastic film is conveyed to the right into a collection bin 9 under the conveyance of the second conveyor belt 5. When the protruding end of the cam 15 is far away from the sliding block 11, the tension spring 13 drives the fixed plate 12 to move upwards under the action of the elasticity of the tension spring 13, the fixed plate 12 drives the sliding block 11 to move upwards to reset, and the sliding block 11 drives the cutting knife 10 to move upwards to reset, so that the plastic film on the first conveyor belt 4 is not prevented from moving to the belt surface 17 on the upper side of the second conveyor belt 5 through the cushion block 3.

In this embodiment, when the getter pump 6 suctions air, the getter pump 6 adsorbs the plastic film on the upper side belt surface 17 of the first conveyor belt 4 and the upper side belt surface 17 of the second conveyor belt 5 through the getter disk 7, so that when the plastic film is conveyed by the first conveyor belt 4, the plastic film and the upper side belt surface 17 of the first conveyor belt 4 do not move relatively, the plastic film is stably conveyed on the first conveyor belt 4, and the plastic film is conveniently conveyed towards the cushion block 3. The cut plastic film on the second conveyor belt 5 is also stuck to the upper belt surface 17 of the second conveyor belt 5, and the plastic film is stably conveyed on the second conveyor belt 5.

In the embodiment, the area of the plastic film adsorbed on the belt surface 17 can be increased through the air suction disc 7, so that the plastic film is adsorbed on the corresponding belt surface 17 more stably.

Example 2

As shown in fig. 3, in this embodiment, the bottom of the sliding block 11 is vertically slidably connected to a sliding portion 19, specifically, the bottom of the sliding block 11 is provided with a groove body, the sliding portion 19 is located in the groove body, a vertical sliding groove is formed in the inner wall of the groove body, a sliding block is welded to the side portion of the sliding portion 19, and the sliding block is located in the sliding groove. A pressure spring 20 is connected between the sliding part 19 and the top of the groove body of the sliding block 11, and the cutting knife 10 is welded on the bottom of the sliding part 19.

In this embodiment, after the cutting knife 10 abuts against the pad 3, the sliding block 11 continues to move downward due to the abutment of the cam 15, at this time, the sliding portion 19 is stationary, the distance between the sliding block 11 and the sliding portion 19 becomes smaller, the pressure spring 20 is compressed, the pressure spring 20 generates pressure, and the pressure spring 20 pushes the sliding portion 19 downward, so that the pressure of the cutting knife 10 is increased, which is beneficial to cutting off the plastic film by the cutting knife 10. When the slide block 11 moves upward, the compression spring 20 between the slide block 11 and the slide part 19 is reset, and the slide block 11 pulls the slide part 19 upward by the compression spring 20, thereby moving the cutting blade 10 upward.

Example 3

As shown in fig. 4 and 5, a transverse plate 24 is welded to the bottom of the sliding portion 19, a fixed clamping block 21 is welded to the transverse plate 24, a movable clamping block 22 is arranged on the transverse plate 24 in a transverse sliding mode, the movable clamping block 22 is located on the right side of the fixed clamping block 21, and the transverse sliding connection mode of the movable clamping block 22 and the transverse plate 24 is as follows: the bottom surface of the transverse plate 24 is provided with a transverse dovetail groove, and the top of the movable fixture block 22 is provided with a slide block which is positioned in the dovetail groove. A connecting member is connected between the fixed block 21 and the movable block 22, and the connecting member in this embodiment is a bolt 23. Cutting knife 10 is clamped between fixed fixture block 21 and movable fixture block 22, specifically, clamping grooves are formed in two side faces of the top of cutting knife 10, and both fixed fixture block 21 and movable fixture block 22 are provided with protrusions clamped in the clamping grooves.

Therefore, after the bolt 23 is unscrewed, the bolt 23 no longer fixes the movable clamping block 22, and the movable clamping block 22 can slide rightwards, so that the cutting knife 10 is convenient to remove and replace. After the cutting blade 10 is replaced, the bolt 23 is continuously tightened, the movable block 22 moves leftwards, and the fixed block 21 and the movable block 22 clamp the cutting blade 10. In this embodiment, the cutting blade 10 and the sliding portion 19 are detachably connected to each other, so that the cutting blade 10 can be easily replaced.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, without departing from the concept of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the present invention and the practicability of the patent. The technology, shape and construction parts which are not described in the present invention are all known technology.

Claims

1. Guillootine is used in plastic bag production includes membrane roller, transfer roller, first conveyer belt, second conveyer belt, cuts the sword and is used for the drive to cut the drive assembly of the vertical reciprocating motion of sword, its characterized in that: be equipped with the cushion between the discharge end of first conveyer belt and the feed end of second conveyer belt, it is located the top of cushion to cut the sword, all be equipped with the subassembly of breathing in between the upper and lower band face of first conveyer belt and the upper and lower band face of second conveyer belt, the subassembly of breathing in includes the aspirator pump, all be equipped with a plurality of through-hole on the band face of first conveyer belt and the band face of second conveyer belt.

2. The cutting machine for producing plastic bags according to claim 1, wherein: the air suction assembly further comprises an air suction disc, a plurality of air holes are formed in the top of the air suction disc, the air suction disc is hollow, and an air suction pump is communicated with the air suction disc.

3. The cutting machine for producing plastic bags according to claim 1, wherein: the drive assembly comprises a sliding block and a cam, the sliding block vertically moves, the cutting knife is located at the bottom of the sliding block, a fixed plate is fixedly connected to the sliding block, a fixed block is arranged above the fixed plate, and a tension spring is connected between the fixed block and the fixed plate.

4. The cutting machine for producing plastic bags according to claim 3, wherein: vertical sliding connection has the sliding part on the bottom of sliding block, is connected with the pressure spring between sliding part and the sliding block, cut the sword and be located the bottom of sliding part.

5. The cutting machine for producing plastic bags according to claim 4, wherein: the cutting tool is characterized in that the sliding part is provided with a fixed clamping block and a movable clamping block, the fixed clamping block is fixedly connected to the sliding part, the movable clamping block is transversely connected to the sliding part in a sliding mode, a connecting piece is connected between the fixed clamping block and the movable clamping block, and the cutting tool is clamped between the fixed clamping block and the movable clamping block.

6. The cutting machine for producing plastic bags according to claim 5, wherein: the cutting knife is characterized in that a clamping groove is formed in the side face of the top of the cutting knife, the fixed clamping block and the movable clamping block are respectively provided with a protruding portion, and the protruding portions are clamped in the clamping grooves.

7. The cutting machine for producing plastic bags according to claim 6, wherein: the connecting piece is a bolt.

8. The cutting machine for producing plastic bags according to claim 3, wherein: the top of the sliding block is fixedly connected with a driven rod, the cam is located above the driven rod, and the cam abuts against the driven rod.

9. The cutting machine for producing plastic bags according to claim 1, wherein: and a cutter groove is arranged on the cushion block.

10. The cutting machine for producing plastic bags according to any one of claims 1 to 9, wherein: and a collecting box is arranged below the discharge end of the second conveyor belt.