CN111571874A

CN111571874A - Plastic bag crushing recovery processing machinery

Info

Publication number: CN111571874A
Application number: CN202010460695.7A
Authority: CN
Inventors: 张春英
Original assignee: Hangzhou Fuyang Hexiang Mould Co ltd
Current assignee: Hangzhou Fuyang Hexiang Mould Co ltd
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2020-08-25

Abstract

The invention relates to a plastic bag crushing, recycling and processing machine which comprises a working frame, a kneading unit, two reversing air outlet units, a crushing roller set and a collecting unit, wherein the kneading unit is arranged in the middle of the upper end of the working frame, the two reversing air outlet units are arranged at the left end and the right end of the working frame, the crushing roller set is uniformly arranged in the working frame, and the collecting unit is arranged at the lower end of the working frame. The plastic bag breaking device can solve the problems that after a plastic bag is broken into pieces, the pieces are often wound on the breaking knife, so that the pieces of the part are difficult to collect, the rotating speed of the breaking knife is possibly reduced due to large resistance along with the increase of the winding amount of the pieces on the breaking knife, and the breaking knife even stops rotating, so that the service life of equipment is greatly shortened, and the breaking knife is positioned in the equipment and is difficult to clean.

Description

Plastic bag crushing recovery processing machinery

Technical Field

The invention relates to the field of plastic bag recovery, in particular to a plastic bag crushing and recovering processing machine.

Background

The plastic bag is a bag made of plastic serving as a main raw material, is an essential article in daily life of people and is often used for containing other articles; the plastic bag is widely used due to the advantages of low price, extremely light weight, large capacity and convenient storage, the used plastic bag is placed inside the garbage can or is directly discarded in urban streets, tourist areas, water bodies, roads and railways, and the plastic bag has extremely long degradation period, so that the plastic bag has important significance in treating, recycling and treating the waste plastic bags.

The traditional recycling method firstly crushes and crushes the plastic by a crushing knife, but the following problems are often encountered in the practical operation:

after breaking into the piece with the plastic bag, the piece often can twine on broken sword, leads to the piece of this part to be difficult to collect, and along with the piece winding volume on the broken sword increases, broken sword probably because of the great underspin of resistance, and serious person even stall to great life who has shortened equipment, and inside broken sword was located equipment, was difficult to the clearance.

Disclosure of Invention

Technical scheme (I)

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a broken processing machinery of retrieving of plastic bag, includes work frame, rubs unit, two switching-over air outlet unit, broken roller set and collection unit, the upper end mid-mounting of work frame have the unit of rubbing, both ends are equipped with two switching-over air outlet unit about the work frame, the inside of work frame evenly is equipped with broken roller set, the collection unit is installed to the lower extreme of work frame.

The work frame include the framework, go out the air pump, main air cavity, two connect the chamber and two sealed door plant, main air cavity has been seted up to the lower extreme of framework, be the intercommunication relation between main air cavity and the air pump of giving vent to anger, the lower extreme at the framework is installed to the air pump of giving vent to anger, two connect the chamber have been seted up at both ends about the framework, connect the chamber and be the intercommunication relation between the main air cavity, connect the outside in chamber and be connected for the embedding between connecting piece and the sealed door plant, the personnel's accessible is opened sealed door plant and is overhauld the condition of switching.

The lower end of the inner side of the communicating cavity is uniformly provided with inclined holes, and the upper end of the inner side of the communicating cavity is uniformly provided with square grooves.

The reversing air outlet unit comprises a driving cylinder, a corresponding plate, a linkage rod, a linkage frame, a reversing air outlet mechanism, a connecting sleeve and a closing plate, wherein the driving cylinder is installed at the lower end of a communicating cavity, the ejecting end of the driving cylinder is installed with the corresponding plate, the corresponding plate and the communicating cavity are connected in a sliding fit mode, the linkage rod is connected between the upper end of the corresponding plate and the lower end of the linkage frame through a pin shaft, the reversing air outlet mechanism is uniformly arranged in the linkage frame from top to bottom, the reversing air outlet mechanism is located in a square groove, the connecting sleeve is connected between the outer end of the reversing air outlet mechanism and the inner side wall of the communicating cavity, the connecting sleeve plays a sealing role, the closing plate is uniformly connected to the inner walls at the left end and the right end of the frame body through the pin shaft, and.

During specific work, the plastic bag enters the frame body after being kneaded by the kneading unit, gas is blown out from the main gas cavity through the gas outlet pump, then the gas is blown out from the inclined holes and the gas outlet heads after passing through the communicating cavity, so that the plastic bag in the frame body is blown up, the plastic bag is influenced by wind power and then floats up at will, the floating plastic bag is subjected to crushing and crushing treatment through the crushing roller set, after the treatment, the corresponding plate is driven to ascend through a driving cylinder, meanwhile, the reversing gas outlet mechanism is driven to carry out angle adjustment under the traction of the linkage rod, at the moment, the inclined holes are sealed and closed through the ascending corresponding plate, the angle of the reversing gas outlet mechanism is adjusted downwards, the gas blowing direction is inclined below, and the crushed plastic bag fragments are ensured to fall into the collecting unit.

Broken roller set include the inner tube, the urceolus, rotate motor and hidden broken mechanism, evenly be equipped with hidden broken mechanism along its circumference on the outer wall of inner tube, both ends are installed in the urceolus around the inner tube, be connected for the bearing between urceolus and the framework, the front end of urceolus and the output shaft that rotates the motor, it passes through pedestal mounting on the front end outer wall of framework to rotate the motor, concrete during operation, drive the inner tube through rotating the motor, the urceolus rotates in step, it stretches out to drive hidden broken mechanism through centrifugal mode, and then stir garrulous plastic bag, when stopping broken, hidden broken mechanism resets again and hides, only need to blow through the air and can blow away adnexed plastic bag crushed aggregates on the urceolus, plastic bag crushed aggregates winding has been avoided.

Hidden broken mechanism include broken sword, coupling spring, mounting bracket and clean the branch chain, even have coupling spring between broken sword and the inner tube, broken sword is located cleans the branch chain, clean the middle part that the branch chain is located the mounting bracket, be connected for the embedding between mounting bracket and the urceolus, concrete during operation, it stretches out to drive broken sword through centrifugal mode, and then stirs garrulous plastic bag, when rotating the motor and stopping to drive the inner tube, when the urceolus rotates, broken sword withdraws into and goes out the groove under coupling spring's effect, carry out the surface through cleaning the broken sword of branch chain to the withdrawal and clean the protection of knife tip.

The distance between the upper inclined plane and the lower inclined plane of the sealing door plate is gradually reduced from outside to inside, and the outer end of the sealing door plate is provided with a handle.

The kneading unit comprises a main motor, a reciprocating gear, two reciprocating racks and two kneading blocks, wherein the main motor is arranged on the frame body, the reciprocating gear is arranged on an output shaft of the main motor, the left end and the right end of the reciprocating gear are meshed with the two reciprocating racks, the reciprocating racks are arranged at the front ends of the kneading blocks, and the kneading blocks are connected with the frame body in a vertically sliding fit manner.

The corresponding plates are uniformly provided with corresponding holes from top to bottom, and the corresponding holes at the initial positions are aligned with the inclined holes left and right.

The reversing air outlet mechanism comprises a connecting rod and an air outlet head, the middle of the connecting rod is connected with the square groove through a pin shaft, the outer end of the connecting rod is connected with the linkage frame through a pin shaft, the air outlet head is installed at the inner end of the connecting rod, and the connecting rod and the air outlet head are in a communicating relation.

The cleaning branched chain comprises two protection blocks, two built-in springs and a clip-shaped sponge, a feeding groove and a discharging groove are formed in the middle of the mounting frame, the clip-shaped sponge is arranged in the middle of the inner wall of the feeding groove, the feeding groove and the discharging groove are connected with the two protection blocks in a sliding fit mode, and the built-in springs are connected between the protection blocks and the feeding groove.

The inner of the crushing knife is provided with an arc limiting plate, the crushing knife is connected with the inlet and outlet groove in a sliding fit mode, and the knife tip portion of the crushing knife is attached to the protection block.

Wherein, the collection unit including collect frame and screening interlayer, collect and be connected for sliding fit's mode between the lower extreme of frame, the screening interlayer has been placed to the inside of collecting the frame.

(II) advantageous effects

1. According to the plastic bag crushing and recycling processing machine, the crushing cutter is in a hidden structural design, when the plastic bag is not crushed any more, the crushing cutter is reset under stress and hidden, and meanwhile, the fragments on the outer barrel are blown away and collected in time through the change of the air blowing direction, so that the condition of excessive contact with the crushing roller group is avoided, and the service life of the equipment is prolonged;

2. according to the plastic bag crushing and recycling processing machine, the working frame is matched with the reversing air outlet unit so as to change the air blowing direction, when plastic bags are crushed, the plastic bags are in a floating state under the action of air blowing, and after the plastic bags are crushed, the plastic bags are rapidly dropped under the action of air blowing, so that the plastic bags are rapidly recovered and collected;

3. according to the plastic bag crushing and recycling processing machine, the crushing roller set adopts a hidden structure design for the crushing cutter, and meanwhile, when the crushing cutter is retracted, the cutter point and the cutter surface of the crushing cutter are protected through the wiping branch chain, and fragments are blocked outside the mounting frame, so that the service life of the plastic bag crushing and recycling processing machine is prolonged.

Drawings

The invention is further illustrated with reference to the following figures and examples.

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

FIG. 2 is a cross-sectional view of FIG. 1 of the present invention;

FIG. 3 is a schematic perspective view of the outer drum and the hidden crushing mechanism according to the present invention;

fig. 4 is a cross-sectional view of the crushing roller set of the present invention.

Detailed Description

Embodiments of the present invention will be described below with reference to the drawings. In this process, the width of the lines or the size of the components in the drawings may be exaggerated for clarity and convenience of description.

The following terms are defined based on the functions of the present invention, and may be different depending on the intention of the user or the operator or the convention. Therefore, these terms are defined based on the entire contents of the present specification.

As shown in fig. 1 to 4, the plastic bag crushing, recycling and processing machine comprises a working frame 1, a kneading unit 2, two reversing air outlet units 3, a crushing roller set 4 and a collecting unit 5, wherein the kneading unit 2 is installed in the middle of the upper end of the working frame 1, the two reversing air outlet units 3 are arranged at the left end and the right end of the working frame 1, the crushing roller set 4 is uniformly arranged in the working frame 1, and the collecting unit 5 is installed at the lower end of the working frame 1.

Work frame 1 include framework 11, the pump 12 of giving vent to anger, main air cavity 13, two communicate chamber 14 and two sealed door plant 15, main air cavity 13 has been seted up to the lower extreme of framework 11, be the intercommunication between main air cavity 13 and the pump 12 of giving vent to anger, the lower extreme at framework 11 is installed to pump 12 of giving vent to anger, two communicate chamber 14 have been seted up at both ends about framework 11, communicate between chamber 14 and the main air cavity 13 for the intercommunication, connect the outside of chamber 14 and be connected for the embedding between connecting piece and the sealed door plant 15, personnel's accessible is opened sealed door plant 15 and is examined and repaired the condition of switching-over air outlet mechanism 35.

Inclined holes are uniformly formed in the lower end of the inner side of the communicating cavity 14, and square grooves are uniformly formed in the upper end of the inner side of the communicating cavity 14.

The reversing air outlet unit 3 comprises a driving cylinder 31, a corresponding plate 32, a linkage rod 33, a linkage frame 34, a reversing air outlet mechanism 35, a connecting sleeve 36 and a closing plate 37, the driving cylinder 31 is installed at the lower end of the communicating cavity 14, the corresponding plate 32 is installed at the ejection end of the driving cylinder 31, the corresponding plate 32 is connected with the communicating cavity 14 in a sliding fit mode, the linkage rod 33 is connected between the upper end of the corresponding plate 32 and the lower end of the linkage frame 34 through a pin shaft, the reversing air outlet mechanism 35 is uniformly arranged in the linkage frame 34 from top to bottom, the reversing air outlet mechanism 35 is located in a square groove, the connecting sleeve 36 is connected between the outer end of the reversing air outlet mechanism 35 and the inner side wall of the communicating cavity 14, the connecting sleeve 36 plays a sealing role, the closing plates 37 are uniformly connected to the inner walls at the left end and the right end of the frame body 11 through pin shafts.

During specific work, the plastic bag enters the frame body 11 after being kneaded by the kneading unit 2, air is blown out from the main air cavity 13 through the air outlet pump 12, then the plastic bag is sprayed out from the inclined hole and the air outlet head 352 after passing through the communicating cavity 14, so that the plastic bag in the frame body 11 is blown up, the plastic bag is influenced by wind power and then floats up at will, the floating plastic bag is subjected to crushing and crushing treatment through the crushing roller group 4, after the treatment, the corresponding plate 32 is driven to ascend through the driving cylinder 31, meanwhile, the reversing air outlet mechanism 35 is driven to perform angle adjustment under the traction of the linkage rod 33, at the moment, the inclined hole is sealed and closed through the ascending corresponding plate 32, and the angle of the reversing air outlet mechanism 35 is adjusted downwards, so that the air blowing direction is the inclined lower side, and the crushed plastic bag is ensured to fall in the collecting unit 5.

Crushing roller set 4 include inner tube 41, urceolus 42, rotate motor 43 and hidden broken mechanism 44, evenly be equipped with hidden broken mechanism 44 along its circumference on the outer wall of inner tube 41, both ends are installed in urceolus 42 around inner tube 41, be connected for the bearing between urceolus 42 and the framework 11, the front end of urceolus 42 and the output shaft that rotates motor 43, it installs on the front end outer wall of framework 11 through the base to rotate motor 43, in concrete during operation, drive inner tube 41 through rotating motor 43, urceolus 42 rotates in step, drive hidden broken mechanism 44 through centrifugal mode and stretch out, and then stir garrulous plastic bag, when stopping broken, hidden broken mechanism 44 resets again and hides, only need blow away the adnexed plastic bag crushed aggregates on the urceolus 42 through the air, the plastic bag crushed aggregates winding has been avoided on crushing roller set 4.

The hidden crushing mechanism 44 comprises a crushing blade 441, a connecting spring 442, a mounting frame 443 and a wiping branched chain 444, the connecting spring 442 is connected between the crushing blade 441 and the inner cylinder 41, the crushing blade 441 is located in the wiping branched chain 444, the wiping branched chain 444 is located in the middle of the mounting frame 443, the mounting frame 443 is connected with the outer cylinder 42 in an embedded manner, during specific work, the crushing blade 441 is driven to extend out in a centrifugal manner so as to crush plastic bags, when the rotating motor 43 stops driving the inner cylinder 41 and the outer cylinder 42 to rotate, the crushing blade 441 retracts into the groove under the action of the connecting spring 442, and the retracted crushing blade 441 is subjected to surface wiping and blade tip protection through the wiping branched chain 444.

The distance between the upper inclined plane and the lower inclined plane of the sealing door panel 15 is gradually reduced from outside to inside, the sealing effect is improved by the inclined embedding mode, and the outer end of the sealing door panel 15 is provided with a handle.

Kneading unit 2 include main motor 21, reciprocating gear 22, two reciprocal racks 23, two rub blocks 24, main motor 21 is installed on framework 11, install reciprocating gear 22 on the output shaft of main motor 21, reciprocating gear 22's the meshing of both ends has two reciprocal racks 23 about, reciprocating rack 23 installs the front end at rub blocks 24, rub and be connected for sliding fit from top to bottom between blocks 24 and the framework 11, during specific work, drive reciprocating gear 22 reciprocating rotation through main motor 21, drive two and rub blocks 24 and carry out reciprocating type staggered movement under the effect of rack, thereby rub the processing to entering into the plastic bag, and then rub the dry dust on the plastic bag surface of retrieving and fall in collecting unit 5, make the plastic bag of retrieving separately with dust.

Correspond board 32 from last down evenly seted up and correspond the hole, and aim at arranging for controlling between the corresponding hole of initial position and the inclined hole, guaranteed that gas can normally ventilate, when driving actuating cylinder 31 and driving corresponding board 32 and rise, correspond the dislocation between hole and the inclined hole and arrange, for sealed laminating processing this moment between corresponding board 32 and the inclined hole.

Reversing air outlet mechanism 35 include communicating rod 351 and give vent to anger head 352, be pin hub connection between communicating rod 351's middle part and the square groove, be pin hub connection between communicating rod 351's outer end and the link frame 34, gas head 352 is installed out to communicating rod 351's the inner, and be the intercommunication relation between communicating rod 351 and the gas head 352 of giving vent to anger, initial position's gas head 352 is the horizontality, make gas be the level and blow off, after the plastic bag breakage finishes, communicating rod 351 receives the extrusion messenger of link frame 34 and reachs the downward angle regulation of gas head 352, make gas be the oblique below and blow off, make the plastic bag piece can fall to collecting frame 51 fast on.

The wiping branched chain 444 comprises two protection blocks 4441, two built-in springs 4442 and a clip-shaped sponge 4443, an inlet and outlet groove is formed in the middle of the mounting rack 443, the clip-shaped sponge 4443 is arranged in the middle of the inner wall of the inlet and outlet groove, the inlet and outlet groove is connected with the two protection blocks 4441 in a sliding fit mode, the built-in springs 4442 are connected between the protection blocks 4441 and the inlet and outlet groove, the reset connection effect is achieved, and the clip attached to the crushing knife 441 is blocked through the clip-shaped sponge 4443.

The inner end of the crushing blade 441 is provided with an arc limiting plate, the crushing blade 441 is connected with the in-out groove in a sliding fit mode, the blade tip portion of the crushing blade 441 is attached to the protection block 4441, and the retracted blade tip portion of the crushing blade 441 is protected.

Collecting unit 5 be connected for sliding fit's mode including collecting frame 51 and screening interlayer 52 between the lower extreme of collecting frame 51 and framework 11, collect the inside of frame 51 and placed screening interlayer 52, during concrete work, the dust that falls enters into the bottom of collecting frame 51, broken plastic bag piece has fallen on screening interlayer 52.

When in work:

s1, separating the plastic bag and the dry dust attached to the bag by the rubbing unit 2, and dropping the dust on the bottom of the collecting frame 51;

s2, blowing air from the main air cavity 13 through the air outlet pump 12, blowing the air from the inclined hole and the air outlet head 352 after passing through the communicating cavity 14, and blowing the plastic bag in the frame 11, wherein the plastic bag is influenced by wind force and floats freely;

s3, the inner cylinder 41 and the outer cylinder 42 are driven to synchronously rotate by the rotating motor 43, and the crushing knife 441 is driven to extend out in a centrifugal mode, so that plastic bags are crushed;

s3, when the plastic bags are crushed into pieces, the rotating motor 43 stops driving the inner cylinder 41 and the outer cylinder 42 to rotate, the crushing knife 441 retracts into the inlet and outlet groove under the action of the connecting spring 442, the driving cylinder 31 drives the corresponding plate 32 to ascend, at the moment, the ascending corresponding plate 32 seals and closes the inclined hole, the air outlet head 352 is extruded by the linkage frame 34 to adjust the downward angle, the falling speed of the pieces is accelerated, and the falling plastic falls on the screening interlayer 52;

s4, the person pulls the collection unit 5 forward entirely, thereby taking out the dust and debris.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a broken processing machinery of retrieving of plastic bag, includes work frame (1), rubs unit (2), two switching-over give vent to anger unit (3), broken roller set (4) and collection unit (5), its characterized in that: the middle part of the upper end of the working frame (1) is provided with a kneading unit (2), the left end and the right end of the working frame (1) are provided with two reversing air outlet units (3), the interior of the working frame (1) is uniformly provided with a crushing roller set (4), and the lower end of the working frame (1) is provided with a collecting unit (5);

the working frame (1) comprises a frame body (11), an air outlet pump (12), a main air cavity (13), two communicating cavities (14) and two sealing door plates (15), wherein the lower end of the frame body (11) is provided with the main air cavity (13), the main air cavity (13) is communicated with the air outlet pump (12), the air outlet pump (12) is arranged at the lower end of the frame body (11), the two communicating cavities (14) are arranged at the left end and the right end of the frame body (11), the communicating cavities (14) are communicated with the main air cavity (13), and the outer parts of the communicating cavities (14) are connected with the sealing door plates (15) in an embedded mode through connecting pieces;

the lower end of the inner side of the communicating cavity (14) is uniformly provided with inclined holes, and the upper end of the inner side of the communicating cavity (14) is uniformly provided with square grooves;

the reversing air outlet unit (3) comprises a driving cylinder (31), a corresponding plate (32), a linkage rod (33), a linkage frame (34), a reversing air outlet mechanism (35), a connecting sleeve (36) and a closing plate (37), wherein the driving cylinder (31) is installed at the lower end of a communicating cavity (14), the corresponding plate (32) is installed at the ejection end of the driving cylinder (31), the corresponding plate (32) is connected with the communicating cavity (14) in a sliding fit manner, the linkage rod (33) is connected between the upper end of the corresponding plate (32) and the lower end of the linkage frame (34) through a pin shaft, the reversing air outlet mechanisms (35) are uniformly arranged in the linkage frame (34) from top to bottom, the reversing air outlet mechanisms (35) are positioned in square grooves, the connecting sleeve (36) is connected between the outer ends of the reversing air outlet mechanisms (35) and the inner side wall of the communicating cavity (14), the inner walls at the left end and the right end of the frame body (11) are uniformly connected with, the positions of the closing plates (37) are in one-to-one correspondence with the positions of the inclined holes;

the crushing roller set (4) comprises an inner cylinder (41), an outer cylinder (42), a rotating motor (43) and a hidden crushing mechanism (44), the hidden crushing mechanism (44) is uniformly arranged on the outer wall of the inner cylinder (41) along the circumferential direction of the inner cylinder, the front end and the rear end of the inner cylinder (41) are installed in the outer cylinder (42), the outer cylinder (42) is connected with the frame body (11) through a bearing, the front end of the outer cylinder (42) is connected with an output shaft of the rotating motor (43), and the rotating motor (43) is installed on the outer wall of the front end of the frame body (11) through a base;

the hidden crushing mechanism (44) comprises a crushing knife (441), a connecting spring (442), an installation frame (443) and a wiping branched chain (444), wherein the connecting spring (442) is connected between the crushing knife (441) and the inner cylinder (41), the crushing knife (441) is positioned in the wiping branched chain (444), the wiping branched chain (444) is positioned in the middle of the installation frame (443), and the installation frame (443) is connected with the outer cylinder (42) in an embedded mode.

2. The plastic bag crushing recovery processing machine according to claim 1, wherein: the distance between the upper inclined plane and the lower inclined plane of the sealing door panel (15) is gradually reduced from outside to inside, and the outer end of the sealing door panel (15) is provided with a handle.

3. The plastic bag crushing recovery processing machine according to claim 1, wherein: the kneading unit (2) comprises a main motor (21), a reciprocating gear (22), two reciprocating racks (23) and two kneading blocks (24), wherein the main motor (21) is installed on the frame body (11), the reciprocating gear (22) is installed on an output shaft of the main motor (21), the two reciprocating racks (23) are meshed at the left end and the right end of the reciprocating gear (22), the reciprocating racks (23) are installed at the front ends of the kneading blocks (24), and the kneading blocks (24) are connected with the frame body (11) in a vertically sliding fit manner.

4. The plastic bag crushing recovery processing machine according to claim 1, wherein: the corresponding plate (32) is provided with corresponding holes from top to bottom, and the corresponding holes at the initial positions are aligned with the inclined holes left and right.

5. The plastic bag crushing recovery processing machine according to claim 1, wherein: the reversing air outlet mechanism (35) comprises a communication rod (351) and an air outlet head (352), the middle of the communication rod (351) is connected with a square groove through a pin shaft, the outer end of the communication rod (351) is connected with a linkage frame (34) through a pin shaft, the inner end of the communication rod (351) is provided with the air outlet head (352), and the communication rod (351) and the air outlet head (352) are in communication relation.

6. The plastic bag crushing recovery processing machine according to claim 1, wherein: the wiping branched chain (444) comprises two protection blocks (4441), two built-in springs (4442) and a clip-shaped sponge (4443), an inlet and outlet groove is formed in the middle of the mounting frame (443), the clip-shaped sponge (4443) is arranged in the middle of the inner wall of the inlet and outlet groove, the inlet and outlet groove is connected with the two protection blocks (4441) in a sliding fit mode, and the built-in springs (4442) are connected between the protection blocks (4441) and the inlet and outlet groove.

7. The plastic bag crushing recovery processing machine according to claim 6, wherein: the inner end of the crushing knife (441) is provided with an arc limiting plate, the crushing knife (441) is connected with the in-out groove in a sliding fit mode, and the knife tip portion of the crushing knife (441) is attached to the protection block (4441).

8. The plastic bag crushing recovery processing machine according to claim 1, wherein: the collecting unit (5) comprises a collecting frame (51) and a screening interlayer (52), the collecting frame (51) is connected with the lower end of the frame body (11) in a sliding fit mode, and the screening interlayer (52) is placed in the collecting frame (51).