CN115716311A

CN115716311A - Waste plastic film recycling and crushing device and crushing method thereof

Info

Publication number: CN115716311A
Application number: CN202211450179.1A
Authority: CN
Inventors: 白有洵
Original assignee: Siliconature Substrate Jiangxi Co ltd
Current assignee: Siliconature Substrate Jiangxi Co ltd
Priority date: 2022-11-19
Filing date: 2022-11-19
Publication date: 2023-02-28
Anticipated expiration: 2042-11-19
Also published as: CN115716311B

Abstract

The invention discloses a waste plastic film recycling and crushing device and a crushing method thereof, and relates to the technical field of plastic film recycling equipment. The waste plastic film recycling and smashing device comprises a seat plate, wherein the upper end face of the seat plate is fixedly connected with a smashing box through a fixing frame, the interior of the smashing box is rotationally connected with an installation cylinder through a rotating shaft in a bilateral symmetry mode, the outer wall of the installation cylinder is circumferentially and uniformly and fixedly connected with a plurality of smashing toothed plates, the lower portion of the smashing box is provided with a dust removing mechanism, and the upper portion of the rear end face of a round cover is fixedly connected with an arc-shaped pressing block matched with the pressed plates.

Description

Waste plastic film recycling and crushing device and crushing method thereof

Technical Field

The invention relates to the technical field of plastic film recycling equipment, in particular to a waste plastic film recycling and crushing device and a crushing method thereof.

Background

The plastic film is a film made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins, is used for packaging and used as a film coating layer, the share of plastic packaging and plastic packaging products on the market is increasing, particularly composite plastic flexible packaging is widely applied to the fields of food, medicine, chemical industry and the like, wherein the proportion of the plastic packaging is the largest, such as beverage packaging, food packaging and the like, the products bring great convenience to the life of people, the plastic film brings convenience to people and causes pollution to the environment, the waste plastic film is not easy to degrade and has long degradation time, so the waste plastic film needs to be crushed, is convenient to recycle and bury, and the degradation speed of the waste plastic film is accelerated.

However, the existing plastic film crushing device has the defects that the crushing shaft is easily wound by a plastic film to cause the rotating speed to slow down or even be blocked and cannot normally operate, so that the equipment load is increased and the burning-out condition is caused.

Disclosure of Invention

The technical problem to be solved is as follows: the device and the method for recycling and crushing the waste plastic film can solve the problems pointed out in the background technology.

The technical scheme is as follows: in order to achieve the above purpose, the invention adopts the following technical scheme that the waste plastic film recycling and crushing device comprises a seat plate, the upper end surface of the seat plate is fixedly connected with a crushing box through a fixing frame, the inner part of the crushing box is rotationally connected with mounting cylinders in bilateral symmetry through a rotating shaft, a plurality of crushing toothed plates are uniformly and fixedly connected with the outer wall of the mounting cylinder in the circumferential direction, a slitting mechanism for cutting off the plastic film wound outside the mounting cylinder is arranged inside the mounting cylinder, a cutting mechanism for cutting off the plastic film wound outside the crushing toothed plate is arranged inside the crushing toothed plate, the lower part of the crushing box is provided with a dust removing mechanism, the cutting mechanism comprises a mounting groove, the front end surface of the crushing toothed plate is provided with the mounting groove, the interior of the mounting groove is fixedly connected with a V-shaped plate, the front end surface of the V-shaped plate is symmetrically and slidably connected with a cutting knife through a slot channel matched with a sliding block, a T-shaped pipe is fixedly connected inside the mounting groove and behind the V-shaped plate, two opposite ends of the T-shaped pipe are communicated with telescopic pipes, and one end of the telescopic pipe far away from the T-shaped pipe is fixedly connected with the rear end face of the sliding block, a plurality of columnar pipes corresponding to the crushing toothed plates are evenly embedded on the front end face of the mounting cylinder in the circumferential direction, and the rear end of the columnar pipe and the rear end of the T-shaped pipe corresponding to the columnar pipe are communicated with a communicating pipe, the interior of the columnar pipe is connected with a suction plug in a sliding way, the front end surface of the suction plug is fixedly connected with a round bar, the front end surface of the installation cylinder is evenly hinged with a plurality of compression plates corresponding to the columnar tubes in the circumferential direction through a cross bar, a tension spring is fixedly connected between the pressure-receiving plate and the cross bar, one end of the pressure-receiving plate is hinged with the front end of the round bar, smash case front end wallboard rear end face and be located the installation section of thick bamboo dead ahead and scarf joint has the dome, dome rear end face upper portion fixedly connected with be used for with the curved briquetting of compression plate complex.

Further, it includes the slide to cut the mechanism, a plurality of logical groove has evenly been seted up to terminal surface circumference before the installation section of thick bamboo, it has the slide to lead to inslot sliding connection, the slide is close to one side in the installation section of thick bamboo centre of a circle and leads to fixedly connected with spring telescopic link between the groove, the slide is close to one side fixedly connected with arm-tie in the installation section of thick bamboo centre of a circle, terminal surface fixedly connected with post before the arm-tie, the dome rear end face be used for through fixed column fixedly connected with the crooked board of heliciform so that the drive slide removes with the arm-tie cooperation, the slide is kept away from one side in the installation section of thick bamboo centre of a circle and is installed and expand and cut the subassembly.

Further, the dust removal mechanism includes bellows, it has bellows to smash the terminal surface intercommunication under the case, the fan is installed to the bellows right part, the equidistance rotates between the chamber wall around the bellows inner chamber and is connected with a plurality of axis of rotation, the outside symmetry fixedly connected with blade of axis of rotation, the outside equidistance fixedly connected with a plurality of axis of rotation strikes the pole, symmetry fixedly connected with wedge plate around the bellows inner chamber left part, two fixedly connected with filter screen between the wedge plate, and the filter screen is the slope form of high left and low right side, the terminal surface has the dust collection box just to be located under the filter screen joint under bellows, bellows left part intercommunication has the discharging pipe.

Further, expand and cut subassembly and include the expansion plate, one side that the spring telescopic link was kept away from to the slide articulates through the nose bar symmetry has two expansion plates that are the splayed and arrange, and one side fixedly connected with cutting off tool, two that the slide was kept away from to the expansion plate fixedly connected with pulls the spring between the expansion plate.

Furthermore, the outer part of the pull column is rotatably connected with a column sleeve.

Furthermore, the upper part of the crushing box is fixedly connected with a material guiding plate.

Furthermore, the upper end face of the seat plate is fixedly connected with a collecting box under the crushing box.

A method for recovering and crushing waste plastic films is completed by adopting a waste plastic film recovery and crushing device in a matching way, and comprises the following steps: s1: waste plastic film is firstly put into a crushing box, then the installation barrel is driven to rotate through the rotating shaft, and the plastic film which is put into the crushing box is crushed by the crushing toothed plate outside the installation barrel in the rotating process of the installation barrel.

S2: the slitting mechanism and the cutting mechanism are driven to synchronously operate in the rotating process of the mounting cylinder, plastic films wound on the mounting cylinder and the outer portion of the crushing toothed plate are timely cut off respectively, and the situation that the crushing device is wound to cause clamping is avoided.

S3: and finally, the crushed plastic film enters a dust removing mechanism, and dust mixed in the plastic film is peeled and removed.

Has the beneficial effects that:

(1) The cutting knife is driven to move along the path of the V-shaped plate through the matching of the pressure-receiving plate and the arc-shaped pressing block in the cutting mechanism, so that the cutting knife stretches out of the mounting groove, the plastic film wound outside the crushing toothed plate is cut off in time, the normal operation of crushing work is guaranteed, and the condition that the equipment is damaged due to winding is avoided.

(2) Through the combination of the crooked board of heliciform and the pull column in cutting the mechanism, the pull column can remove and drive the cutting off cutter and remove under the shape of the crooked board of heliciform at rotatory in-process, connects and makes its outside removal with the quick release of cutting off cutter to can cut off the winding at the outside plastic film of installation section of thick bamboo, avoid leading to the condition of blocking because of the winding in the installation section of thick bamboo working process.

(3) The knocking rod is driven to rotate through the cooperation of the air flow in the dust removing mechanism and the blades, the knocking rod rotates and collides with the plastic film, so that dust mixed in the plastic film is stripped out, and then the plastic film crushed aggregates and the dust are separated through the filter screen in an inclined state, so that the crushing quality of the plastic film is improved.

(4) Airflow transversely flowing in the air box enables negative pressure to be generated in the crushing box, and then suction force generated by the negative pressure enables the plastic film placed in the crushing box to stably enter the space between the two installation cylinders, so that the situation that the plastic film floats away in the crushing process is avoided, and the normal operation of the crushing work is guaranteed.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic cross-sectional view of the overall structure of the present invention.

Fig. 3 is a schematic structural view of the mounting cylinder of the present invention.

FIG. 4 is a schematic view of the top view structure of the pressed plate and the arc-shaped pressing block in cooperation.

FIG. 5 is a schematic cross-sectional view of the cutting mechanism of the present invention.

Fig. 6 is a schematic view of a slitting mechanism mounting arrangement according to the present invention.

Fig. 7 is an enlarged view of the structure of part a in fig. 6 according to the present invention.

FIG. 8 is a schematic cross-sectional view of the dust removing mechanism of the present invention.

In the figure: 1. a seat plate; 2. a crushing box; 3. mounting the cylinder; 4. a crushing toothed plate; 5. a slitting mechanism; 51. a slide plate; 52. a spring telescopic rod; 53. pulling a plate; 54. pulling the column; 55. a helically curved plate; 56. expanding and cutting the assembly; 561. an expansion plate; 562. a cutting knife; 563. pulling the spring; 6. a cutting mechanism; 61. mounting grooves; 62. a V-shaped plate; 63. a cutting knife; 64. a T-shaped pipe; 65. a telescopic pipe; 66. a columnar tube; 67. a communicating pipe; 68. sucking a plug; 69. a round bar; 610. a pressure receiving plate; 611. a tension spring; 612. an arc-shaped pressing block; 7. a dust removal mechanism; 71. an air box; 72. a fan; 73. a blade; 74. a knock bar; 75. a wedge plate; 76. filtering with a screen; 77. a dust collecting box; 78. a discharge pipe; 8. a dome; 9. and (4) collecting the box.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 and fig. 2, the present invention provides a technical solution: the utility model provides a reducing mechanism is retrieved to abandonment plastic film, including bedplate 1, 1 up end of bedplate passes through mount fixedly connected with crushing case 2, smash 2 upper portion fixedly connected with guide plates of case, the guide plate through the installation of slope form makes things convenient for putting into of plastic film, 1 up end of bedplate just is located crushing case 2 under fixedly connected with collection box 9, crushing 2 inside of case rotates through pivot bilateral symmetry and is connected with the installation section of thick bamboo 3, the even fixedly connected with a plurality of installation section of thick bamboo 3 outer wall circumference smashes pinion rack 4, installation section of thick bamboo 3 inside is provided with and is used for cutting off the cutting mechanism 5 of winding at its outside plastic film, smash 4 internally mounted of pinion rack and have the cutting mechanism 6 that cuts at its outside plastic film, smash 2 lower parts of case and install dust removing mechanism 7.

Referring to fig. 3, 4, 5 and 6, in this embodiment, the cutting mechanism 6 includes an installation groove 61, the front end surface of the crushing toothed plate 4 is provided with the installation groove 61, the inside of the installation groove 61 is fixedly connected with a V-shaped plate 62, the front end surface of the V-shaped plate 62 is symmetrically and slidably connected with a cutting knife 63 through a channel matching sliding block, the inside of the installation groove 61 is fixedly connected with a T-shaped pipe 64 located behind the V-shaped plate 62, the two opposite ends of the T-shaped pipe 64 are both communicated with a telescopic pipe 65, one end of the telescopic pipe 65 far away from the T-shaped pipe 64 is fixedly connected with the rear end surface of the sliding block, the front end surface of the installation cylinder 3 is circumferentially and uniformly embedded with a plurality of cylindrical pipes 66 corresponding to the crushing toothed plate 4, the rear ends of the cylindrical pipes 66 and the rear ends of the T-shaped pipes 64 corresponding to the cylindrical pipes are both communicated with a communication pipe 67, the inside of the cylindrical pipes 66 is slidably connected with an absorption plug 68, the front end surface of the absorption plug 68 is fixedly connected with a round rod 69, the front end surface of the installation cylinder 3 is circumferentially and uniformly hinged with a plurality of compression plates 610 corresponding to the front end of the cylindrical pipe 611 through a cross rod 610, and the front end surface of the installation cylinder cover is connected with a compression block 610 and a front end of the arc-shaped pipe cover 8 for embedding the crushing toothed plate 610 and a front end of the installation cylinder cover 8.

Placing a waste plastic film into a crushing box 2, driving a rotating shaft to rotate through an external driving device, driving a mounting cylinder 3 to rotate by the rotating shaft, driving a crushing toothed plate 4 to rotate by the mounting cylinder 3, crushing the plastic film placed into the crushing box 2, driving a cutting mechanism 6 to synchronously operate in the rotation process of the crushing toothed plate 4, cutting off the plastic film wound outside the crushing toothed plate 4, when a pressure bearing plate 610 contacts an arc pressing block 612 along with the rotation of the mounting cylinder 3, pressing the pressure bearing plate 610 to move around the end of a cross rod by the arc pressing block 612, pulling a round rod 69 to move forwards, pulling an adsorption plug 68 to move forwards, pulling a columnar pipe 66 to generate negative pressure by the forward movement of the adsorption plug 68, pulling a T-shaped pipe 64 to generate negative pressure by a communicating pipe 67, pulling a telescopic pipe 65 to generate negative pressure in the telescopic pipe, driving a sliding block to move towards the middle part of a V-shaped plate 62, driving a cutter 63 to move towards the middle part of the V-shaped plate 62, and gradually cutting off the two plastic films from the middle part of the V-shaped plate 62 to the straight cutter contact groove 61, and cutting off the two plastic films from the middle part of the V-shaped plate 62 and the straight cutter contact groove 61;

then the pressed plate 610 is separated from the arc-shaped pressing block 612, the tension spring 611 in a stretching state pulls the pressed plate 610 to rotate, the pressed plate 610 then pushes the round rod 69 to move backwards, the round rod 69 then pushes the suction plug 68 to move backwards, pressure is applied to the communication pipe 67, the T-shaped pipe 64 and the extension pipe 65, so that the extension pipe 65 extends, the extension pipe 65 then drives the cutting knives 63 to move away from each other through the sliding blocks, the cutting knives 63 move away from each other and retract into the installation groove 61, the two cutting knives 63 in the crushing toothed plate 4 are driven to approach each other to cut off the wound plastic film when the pressed plate 610 rotates and passes through the arc-shaped pressing block 612, and the cutting knives 63 are driven to reset away from each other when the pressed plate 610 and the arc-shaped pressing block 612 are staggered, so that the plastic film wound outside the crushing toothed plate 4 can be cut off in time, normal operation of the crushing work is ensured, and damage caused by winding of equipment is avoided.

Referring to fig. 3 and 6, in this embodiment, the slitting mechanism 5 includes a sliding plate 51, a plurality of through grooves are uniformly formed in the circumferential direction of the front end surface of the mounting cylinder 3, the sliding plate 51 is slidably connected inside the through grooves, a spring telescopic rod 52 is fixedly connected between one side of the sliding plate 51 close to the circle center of the mounting cylinder 3 and the through grooves, a pulling plate 53 is fixedly connected to one side of the sliding plate 51 close to the circle center of the mounting cylinder 3, a pulling post 54 is fixedly connected to the front end surface of the pulling plate 53, a post sleeve is rotatably connected to the outside of the pulling post 54, a spiral bent plate 55 is fixedly connected to the rear end surface of the round cover 8 and used for being matched with the pulling post 54 to drive the sliding plate 51 to move, and an expanding and cutting assembly 56 is installed on one side of the sliding plate 51 away from the circle center of the mounting cylinder 3.

Referring to fig. 7, the expanding and cutting assembly 56 includes two expanding plates 561, two expanding plates 561 arranged in a shape of a Chinese character 'ba' are symmetrically hinged to one side of the sliding plate 51 away from the spring telescopic rod 52 through a protruding rod, a cutting knife 562 is fixedly connected to one side of the expanding plates 561 away from the sliding plate 51, and a pulling spring 563 is fixedly connected between the two expanding plates 561.

The installation cylinder 3 rotates and simultaneously drives the splitting mechanism 5 to operate, the installation cylinder 3 rotates and drives the sliding plate 51 to rotate, in the process that the sliding plate 51 rotates around the center of the installation cylinder 3, the pull column 54 gradually moves towards the center of the installation cylinder 3 under the shape of the spiral bent plate 55, the pull column 54 then pulls the sliding plate 51 to move through the pull plate 53, so that the spring telescopic rod 52 is continuously compressed, when the through groove rotates to the three o' clock position of the installation cylinder 3, the pull column 54 moves to the innermost end position of the spiral bent plate 55, the spring telescopic rod 52 is compressed to the shortest state, the pull column 54 continuously moves to pass through the inner end of the spiral bent plate 55, the spring telescopic rod 52 in the compressed state is released and quickly pushes the sliding plate 51 to move outwards, the sliding plate 51 then drives the expanding and cutting assembly 56 to abut against a plastic film wound outside the installation cylinder 3, the expanding plate 561 drives the cutting knives 562 to abut against the wound plastic film, the plastic film under the pushing of the expanding plate 562 arranged in a splay mode to move away from each other, the plastic film, at the end position of the expanding plate 54 is clamped outside the plastic film, the plastic film is continuously wound on the installation cylinder 55, and the installation cylinder 55, the plastic film is prevented from being continuously wound on the installation cylinder 3, and further, and the plastic film winding step of the installation cylinder is prevented from being damaged, and the plastic film winding step of the installation cylinder 3, and the plastic film is further, and the plastic film is prevented from being damaged, and the plastic film winding step of the installation cylinder 3, and the installation cylinder 3.

Referring to fig. 8, in this embodiment, the dust removing mechanism 7 includes an air box 71, the lower end surface of the crushing box 2 is communicated with the air box 71, a fan 72 is installed at the right portion of the air box 71, a plurality of rotating shafts are rotationally connected between the front and rear cavity walls of the inner cavity of the air box 71 at equal intervals, blades 73 are symmetrically and fixedly connected to the outer portions of the rotating shafts at equal intervals, a plurality of knocking rods 74 are fixedly connected to the outer portions of the rotating shafts at equal intervals, wedge plates 75 are symmetrically and fixedly connected to the left portion of the inner cavity of the air box 71 at front and rear portions, filter screens 76 are fixedly connected between the two wedge plates 75, the filter screens 76 are inclined at high left and low right, a dust collecting box 77 is clamped at the lower end surface of the air box 71 and under the filter screens 76, and a discharge pipe 78 is communicated with the left portion of the air box 71.

The plastic film is crushed by the crushing toothed plate 4 and falls into the air box 71, then the fan 72 is started to operate to blow air into the air box 71, the air flow flowing in the air box 71 drives the blades 73 to rotate, the blades 73 then drive the knocking rod 74 to rotate through the rotating shaft, the plastic film crushed materials move from right to left through the knocking rod 74 under the blowing of the air flow, the knocking rod 74 rotates to collide with the moving plastic film, so that dust contained in the plastic film is separated, then the plastic film moves leftwards and passes through the filter screen 76 in an inclined state, due to the fact that the filter screen 76 is in an inclined state with the left higher part and the right lower part, the plastic film gradually moves upwards under the inclined plane of the filter screen 76, the dust is intercepted by the filter screen 76 and enters the discharge pipe 77, the separated plastic film passes through the filter screen 76 and enters the discharge pipe 78, and then enters the collection box 9 again, so that the separation of the dust in the plastic film is completed, and the crushing quality of the plastic film is improved.

In addition, the invention also provides a method for recycling and crushing the waste plastic film, which comprises the following steps:

s1: at first put into crushing case 2 with abandonment plastic film, drive installation section of thick bamboo 3 through the pivot rotatory after that, the rotatory in-process of installation section of thick bamboo 3 utilizes its outside crushing pinion rack 4 to smash the plastic film who puts into.

S2: the slitting mechanism 5 and the cutting mechanism 6 are also driven to synchronously operate in the rotating process of the installation cylinder 3, the pull column 54 and the spiral bent plate 55 in the slitting mechanism 5 are matched with each other to drive the expanding and cutting assembly 56 to move outwards quickly, the plastic film wound on the outside of the installation cylinder 3 is cut off, the pressed plate 610 and the arc pressing block 612 in the cutting mechanism 6 are matched with each other to drive the two corresponding cutting cutters 63 to move close to each other, the plastic film wound on the outside of the crushing toothed plate 4 is cut off, and the situation that the crushing device is wound to cause clamping is avoided.

S3: finally, the crushed plastic film enters the dust removing mechanism 7, the air flow flowing in the air box 71 blows the blades 73 to drive the knocking rod 74 to rotate to collide with the crushed plastic film, so that dust in the plastic film is peeled, and then the filter screen 76 in an inclined state is used for separating the plastic film from the dust, so that the crushing quality is improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the same.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a waste plastic film retrieves reducing mechanism, includes bedplate (1), its characterized in that: the upper end face of the seat plate (1) is fixedly connected with a crushing box (2) through a fixing frame, the inside of the crushing box (2) is rotationally connected with an installation cylinder (3) in a bilateral symmetry mode through a rotating shaft, the outer wall of the installation cylinder (3) is uniformly and fixedly connected with a plurality of crushing toothed plates (4) in the circumferential direction, a cutting mechanism (5) used for cutting off a plastic film wound outside the installation cylinder is arranged inside the installation cylinder (3), a cutting mechanism (6) used for cutting off the plastic film wound outside the installation cylinder is arranged inside the crushing toothed plates (4), and a dust removing mechanism (7) is arranged at the lower portion of the crushing box (2);

the cutting mechanism (6) comprises a mounting groove (61), the front end face of the crushing toothed plate (4) is provided with a mounting groove (61), a V-shaped plate (62) is fixedly connected inside the mounting groove (61), the front end face of the V-shaped plate (62) is symmetrically and slidably connected with a cutting knife (63) through a channel matching slider, a T-shaped pipe (64) is fixedly connected inside the mounting groove (61) and behind the V-shaped plate (62), telescopic pipes (65) are communicated with the two ends of the T-shaped pipe (64) in a back-to-back manner, one end of each telescopic pipe (65) far away from the T-shaped pipe (64) is fixedly connected with the rear end face of the slider, the front end face of the mounting cylinder (3) is circumferentially and uniformly embedded with a plurality of cylindrical pipes (66) corresponding to the crushing toothed plate (4), the rear ends of the cylindrical pipes (66) and the rear ends of the T-shaped pipes (64) corresponding to the cylindrical pipes are jointly communicated with a communicating pipe (67), the inside of each cylindrical pipes (66) is slidably connected with a suction plug (68), the front end face of the suction plug (68) is fixedly connected with a cylindrical rod (69), the front end face of the mounting cylinder (3) is hinged with a plurality of fixed cross rods (610) and a tension spring (610) hinged with the corresponding cross rod (610) and a tension spring (610) hinged with the front end plate (610), smash case (2) front end wallboard rear end face and be located installation section of thick bamboo (3) dead ahead scarf joint and have dome (8), dome (8) rear end face upper portion fixedly connected with be used for with receive curved briquetting (612) of pressure plate (610) complex.

2. The recycling and pulverizing apparatus for waste plastic film as claimed in claim 1, wherein: cutting mechanism (5) includes slide (51), a plurality of logical groove has evenly been seted up to terminal surface circumference before installation section of thick bamboo (3), it has slide (51) to lead to the inside sliding connection of groove, one side that slide (51) are close to the installation section of thick bamboo (3) centre of a circle and lead to fixedly connected with spring telescopic link (52) between the groove, slide (51) are close to one side fixedly connected with arm-tie (53) in the installation section of thick bamboo (3) centre of a circle, terminal surface fixedly connected with pull post (54) before arm-tie (53), dome (8) rear end face be used for through fixed column fixedly connected with pull post (54) cooperation so that drive spiral helicine bending plate (55) that slide (51) removed, slide (51) are kept away from one side in the installation section of thick bamboo (3) centre of a circle and are installed and are enlarged and cut subassembly (56).

3. The recycling and crushing device for waste plastic films as claimed in claim 1, wherein: go dirt mechanism (7) including bellows (71), the terminal surface intercommunication has bellows (71) under crushing case (2), fan (72) are installed to bellows (71) right part, equidistance rotates between the chamber wall around bellows (71) inner chamber and is connected with a plurality of axis of rotation, the outside symmetry fixedly connected with blade of axis of rotation (73), pole (74) are strikeed to the outside equidistance fixedly connected with a plurality of axis of rotation, symmetry fixedly connected with wedge plate (75) around bellows (71) inner chamber left part, two fixedly connected with filter screen (76) between wedge plate (75), and filter screen (76) are the slope form of low in the left side height, terminal surface has dust collection box (77) under just being located filter screen (76) under bellows (71), bellows (71) left part intercommunication has discharging pipe (78).

4. The recycling and pulverizing apparatus for waste plastic film as claimed in claim 2, wherein: expand and cut subassembly (56) including expansion board (561), one side that spring telescopic link (52) were kept away from in slide (51) articulates through the nose bar symmetry has two expansion board (561) that are the splayed and arrange, and expansion board (561) keep away from one side fixedly connected with cutting off tool (562) of slide (51), two fixedly connected with between expansion board (561) pulls spring (563).

5. The recycling and crushing device for the waste plastic films as claimed in claim 2, wherein: the outer part of the pull column (54) is rotatably connected with a column sleeve.

6. The recycling and pulverizing apparatus for waste plastic film as claimed in claim 1, wherein: the upper part of the crushing box (2) is fixedly connected with a material guiding plate.

7. The recycling and crushing device for waste plastic films as claimed in claim 1, wherein: the upper end face of the seat plate (1) is fixedly connected with a collecting box (9) under the crushing box (2).

8. A method for recycling and crushing waste plastic films, which is characterized by being completed by the waste plastic film recycling and crushing device as claimed in claim 1, and comprising the following steps:

s1: firstly, waste plastic films are placed into a crushing box (2), then a rotating shaft drives an installation cylinder (3) to rotate, and the installation cylinder (3) crushes the placed plastic films by using a crushing toothed plate (4) outside the installation cylinder in the rotating process;

s2: the slitting mechanism (5) and the cutting mechanism (6) are also driven to synchronously operate in the rotating process of the mounting cylinder (3), so that plastic films wound on the outer parts of the mounting cylinder (3) and the crushing toothed plate (4) are respectively cut off in time, and the situation that the crushing device is wound to cause clamping is avoided;

s3: and finally, the crushed plastic film enters a dust removing mechanism (7) to peel off and remove dust mixed in the plastic film.