Crushing mesh screen device for production raw materials of plastic woven bags

Abstract

The utility model discloses a pulverizing mesh screen device for plastic woven bag production raw materials, which relates to the technical field of raw material processing and comprises a second box body and a first box body fixedly connected to one end of the top of the second box body, and a control box is fixedly connected to the bottom end of one side wall, far away from the second box body, of the first box body. The bottom end of the side wall, close to the second box body, of the first box body is fixedly connected with a third box body; according to the utility model, raw materials are crushed through the third crushing roll shaft and the first crushing cutters on the outer arc wall of the third crushing roll shaft, the crushed raw materials fall on the top of the screen, and the raw materials are classified according to different particle sizes; the raw materials used in the woven bag production process are uniform and consistent in granularity, large fragments are conveyed to the crushing assembly for secondary crushing through vibration screening, the large-particle raw materials are further crushed into small-particle raw materials, and the granularity uniformity is further guaranteed; the tensile strength, wear resistance and other physical properties of the woven bag produced from the raw materials with uniform granularity are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of raw material processing, in particular to a crushing screen device for the production raw materials of plastic woven bags. Background Technique

[0002] A woven bag, also known as a snake skin bag, is a kind of plastic bag, mainly used for packaging various items. At present, plastic woven bags are mainly made of polypropylene bags and polyethylene bags according to the main materials. Its main production process is to use plastic raw materials to extrude films, cut, and unidirectionally stretch them into flat filaments, and then obtain products through warp and weft weaving, generally called woven bags.

[0003] The existing production raw materials of woven bags generally use waste plastic products, which are made into small plastic particles through cleaning, crushing, screening, melting, and drawing for subsequent use in the production of woven bags. During the raw material crushing process, since the sizes of the fragments after the raw materials are crushed by the crusher are different, such uneven raw material particles will seriously affect the finished product quality of the woven bags during the subsequent production process of the woven bags, and may even cause damage or safety hazards during use.

[0004] In view of this, this application is specifically proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a crushing screen device for the production raw materials of plastic woven bags to solve the problems raised in the above background technique.

[0006] To solve the above technical problems, a crushing screen device for the production raw materials of plastic woven bags provided by the utility model includes a second box body and a first box body fixedly connected to one end of the top thereof. The bottom end of the side wall of the first box body far away from the second box body is fixedly connected with a control box. The bottom end of the side wall of the first box body close to the second box body is fixedly connected with a third box body. The top end inside the first box body is rotatably connected with a third crushing roller shaft. The extending direction of the axis of the third crushing roller shaft is consistent with the width direction of the second box body. A plurality of first crushing knives are equally spaced and spirally distributed on the outer arc wall of the third crushing roller shaft. A fixing plate is arranged on the side of the third crushing roller shaft far away from the third box body. The side wall of the fixing plate facing the third crushing roller shaft is an arc surface. One end of the fixing plate facing the third crushing roller shaft is provided with a plurality of vertically penetrating sliding channels one. The plurality of first crushing knives correspond to the plurality of sliding channels one by one. The side wall of the fixing plate far away from the third crushing roller shaft is fixedly connected to the inner side wall of the first box body;

[0007] A screen mesh is arranged directly below the third crushing roller shaft. The screen mesh is inclined towards the direction of the third box body. At the position corresponding to the screen mesh on the inner side wall of the first box body close to the third box body, there is a longitudinally penetrating sliding channel 2. The sliding channel 2 communicates with the inside of the third box body. A crushing component is arranged inside the third box body. The crushing component includes a guide plate arranged at the bottom of the inner side wall of the third box body corresponding to the opening of the sliding channel 2. On the two parallel inner side walls of the third box body along the width direction of the second box body, a first crushing roller shaft and a second crushing roller shaft are rotatably connected. A number of crushing knives 2 distributed in an annular array are arranged on the outer arc wall of the first crushing roller shaft. The first crushing roller shaft and the second crushing roller shaft have the same structure and are symmetrically arranged about the inside of the third box body.

[0008] Furthermore, a first driving mechanism and a second driving mechanism are arranged inside the control box. The first driving mechanism includes a first motor located at the bottom end inside the control box. The output end of the first motor faces the second box body. The output end of the first motor is fixedly connected with a fourth belt pulley. A first belt pulley is arranged directly above the fourth belt pulley. The first belt pulley and the fourth belt pulley are sleeved with the same first belt on the outside. A limiting column is fixedly connected to the side wall of the first belt pulley close to the second box body. An annular sliding groove is arranged on the outer arc wall of the limiting column near one end of the second box body. One horizontal side surface of the annular sliding groove is inclined towards the direction of the second box body. A pull rod is slidably connected inside the annular sliding groove. The end of the pull rod away from the limiting column penetrates through the first box body and is fixedly connected to the screen mesh. The end of the fourth belt pulley away from the first motor is fixedly connected with a first rotating shaft. The end of the first rotating shaft away from the first motor penetrates through the second box body. The end of the first rotating shaft away from the first motor is fixedly connected with an auger, and the auger is located inside the second box body.

[0009] Furthermore, the second driving mechanism includes a second motor located at the top end on one side inside the control box. The output end direction of the second motor is perpendicular to the output end direction of the first motor. The output end of the second motor faces the outside of the control box. The output end of the second motor is fixedly connected with a second belt pulley. A second rotating shaft is fixedly connected to the side wall of the third crushing roller shaft close to the second belt pulley. The side wall of the second rotating shaft away from the third crushing roller shaft penetrates through the first box body. A double-groove belt pulley is fixedly connected to the side wall of the second rotating shaft away from the third crushing roller shaft. The second belt pulley and the wheel groove of the double-groove belt pulley close to the third crushing roller shaft are sleeved with the same second belt. A third rotating shaft is rotatably connected to the side wall of the third box body close to the double-groove belt pulley. A third belt pulley is fixedly connected to the side wall of the third rotating shaft away from the third box body. The third belt pulley and the wheel groove of the double-groove belt pulley away from the third crushing roller shaft are sleeved with the same third belt.

[0010] Furthermore, a first gear is fixedly connected to the side wall of the first crushing roller shaft close to the third belt pulley. A second gear is fixedly connected to the side wall of the second crushing roller shaft close to the third belt pulley. The first gear and the second gear are meshed and connected with each other. The end of the third rotating shaft away from the third belt pulley penetrates through the third box body and is fixedly connected to the second gear.

[0011] Further, a vertically penetrating storage passage 1 is provided at the center of the top of the first box body on the side where the third crushing roller shaft and the fixing plate are close to each other. A feed hopper is fixedly connected to the opening of the storage passage 1 at the top of the first box body.

[0012] Further, the first box body communicates with the second box body, the third box body communicates with the second box body, the first box body and the third box body communicate with each other through a second sliding passage. At the top of both sides of the inner side wall of the first box body corresponding to the opening of the second sliding passage, baffles are provided. The bottom of the baffle abuts against the top of the sieve mesh. The side walls of the two baffles close to each other are inclined planes, and the inclination direction is set towards the third box body.

[0013] Further, a number of support columns are evenly distributed at both sides of the bottom of the second box body. Support columns with the same structure are provided at the bottom of the control box. A filter screen is installed at the bottom of the end of the second box body away from the control box.

[0014] Further, the size of the filter holes on the filter screen is smaller than the particle size of the raw material after crushing, and the size of the filter holes on the filter screen is much smaller than the size of the sieve holes on the sieve mesh.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] 1. Through the third crushing roller shaft and the first crushing knives on its outer arc wall, the raw materials are crushed. The crushed raw materials fall on the top of the sieve mesh, and the raw materials are classified according to different particle sizes, ensuring that the particle sizes of the raw materials used in the production process of the woven bag are uniform. After vibration screening, the larger fragments are sent to the crushing assembly for secondary crushing, and the large particle raw materials are further crushed into small particle raw materials, further ensuring the uniformity of particle size. In this way, in the subsequent production of woven bags, the physical properties such as tensile strength and wear resistance of the woven bags produced from raw materials with uniform particle size are improved, and the appearance of the woven bags can also be made more neat and beautiful;

[0017] 2. Through the auger, in cooperation with the water inlet provided on the side wall of the first box body, the raw material particles are washed while being conveyed, and impurities are filtered at the filter screen at the bottom of the end of the auger, reducing the impurity content in the raw material particles and ensuring the purity of the raw materials. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the overall structure of a crushing and sieving device for raw materials of a plastic woven bag;

[0019] Figure 2 It is a schematic diagram of the internal structure of a crushing and sieving device for raw materials of a plastic woven bag from a first side view angle;

[0020] Figure 3 It is Figure 2 The enlarged structure diagram of part A in

[0021] Figure 4 It is a schematic diagram of the internal structure of the second side view of a crushing screen device for the raw materials of a plastic woven bag;

[0022] Figure 5 It is Figure 4 The enlarged view of the structure at B in

[0023] Figure 6 It is Figure 4 The enlarged view of the structure at C in

[0024] In the figure:

[0025] 10. Box one; 11. Control box; 12. Box two; 13. Box three; 14. Feeding hopper; 15. Support column; 16. Filter screen;

[0026] 20. Driving mechanism one; 21. Motor one; 22. Pulley one; 23. Belt one; 24. Rotating shaft one; 25. Auger; 26. Sieve mesh; 27. Baffle; 28. Pull rod; 29. Limit column;

[0027] 30. Driving mechanism two; 31. Motor two; 32. Pulley two; 33. Belt two; 34. Double-groove pulley; 35. Belt three; 36. Pulley three;

[0028] 40. Crushing component; 41. Crushing roller shaft one; 42. Crushing roller shaft two; 43. Gear one;

[0029] 44. Gear two; 45. Guide plate;

[0030] 50. Crushing roller shaft three; 51. Crushing knife one; 52. Fixed plate. Specific implementation mode

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0032] Please refer to Figures 1-3 , the present invention provides a technical solution:

[0033] Refer to Figures 1-3As shown in the figure, a crushing screen device for the raw materials of plastic woven bags includes a second box body 12 and a first box body 10 fixedly connected to one end of its top. At the bottom of one side wall of the first box body 10 far from the second box body 12, a control box 11 is fixedly connected. At the bottom of one side wall of the first box body 10 close to the second box body 12, a third box body 13 is fixedly connected. At the top inner part of the first box body 10, a third crushing roller shaft 50 is rotatably connected. The extending direction of the axis of the third crushing roller shaft 50 is consistent with the width direction of the second box body 12. A number of first crushing knives 51 are evenly and spirally distributed on the outer arc wall of the third crushing roller shaft 50. On the side of the third crushing roller shaft 50 far from the third box body 13, there is a fixing plate 52. The side wall of the fixing plate 52 facing the third crushing roller shaft 50 is an arc surface. At one end of the fixing plate 52 facing the third crushing roller shaft 50, a number of vertically penetrating first sliding channels are provided. The number of the first crushing knives 51 corresponds to the number of the first sliding channels one by one. The side wall of the fixing plate 52 far from the third crushing roller shaft 50 is fixedly connected to the inner side wall of the first box body 10;

[0034] Below the third crushing roller shaft 50, there is a screen 26. The screen 26 is inclined towards the third box body 13. At the position corresponding to the screen 26 on the inner side wall of the first box body 10 close to the third box body 13, a longitudinally penetrating second sliding channel is provided. The second sliding channel communicates with the inside of the third box body 13. Inside the third box body 13, there is a crushing assembly 40. The crushing assembly 40 includes a guide plate 45 arranged at the bottom of the inner side wall of the third box body 13 corresponding to the opening of the second sliding channel. On two parallel inner side walls of the third box body 13 along the width direction of the second box body 12, a first crushing roller shaft 41 and a second crushing roller shaft 42 are rotatably connected. A number of second crushing knives are arranged in an annular array on the outer arc wall of the first crushing roller shaft 41. The first crushing roller shaft 41 and the second crushing roller shaft 42 have the same structure and are symmetrically arranged inside the third box body 13.

[0035] It should be noted that the first crushing knives 51 on the surface of the third crushing roller shaft 50 can be regarded as being in a state of being spirally and equally spaced in several groups, that is, there is a certain gap in the initial rotation angle between two adjacent groups of first crushing knives 51 in the axial direction; and the first sliding channels provided on the fixing plate 52 can allow the first crushing knives 51 located on the same plane to pass through, realizing the extrusion, cutting and crushing of the raw materials;

[0036] The aperture size of the sieve holes on the screen 26 can be replaced according to specific production requirements. The two sides of the screen 26 are respectively slidably connected to the two inner side walls of the first box body 10.

[0037] Refer to Figures 1-3As shown in the figure, a crushing screen device for the raw materials of plastic woven bags. Inside the control box 11, there is a first driving mechanism 20 and a second driving mechanism 30. The first driving mechanism 20 includes a first motor 21 located at the bottom end inside the control box 11. The output end of the first motor 21 faces the second box body 12. The output end of the first motor 21 is fixedly connected with a fourth belt pulley. Above the fourth belt pulley, there is a first belt pulley 22. A same first belt 23 is sleeved outside the first belt pulley 22 and the fourth belt pulley. On one side wall of the first belt pulley 22 close to the second box body 12, a limiting column 29 is fixedly connected. At one end of the outer arc wall of the limiting column 29 close to the second box body 12, there is an annular sliding groove. One horizontal side face of the annular sliding groove is inclined towards the direction of the second box body 12. A pull rod 28 is slidably connected inside the annular sliding groove. One end of the pull rod 28 away from the limiting column 29 penetrates through the first box body 10 and is fixedly connected to the screen 26. One end of the fourth belt pulley away from the first motor 21 is fixedly connected with a first rotating shaft 24. One end of the first rotating shaft 24 away from the first motor 21 penetrates through the second box body 12. One end of the first rotating shaft 24 away from the first motor 21 is fixedly connected with an auger 25. The auger 25 is located inside the second box body 12.

[0038] It should be noted that the first motor 21 in the first driving mechanism 20 is in a lying state, the output shaft points to the second box body 12, and its bottom is fixedly connected to the inner wall of the bottom of the control box 11. And at the bottom of one end of the pull rod 28 close to the limiting column 29, a sliding block is fixedly connected. The sliding block is slidably connected to the inclined annular sliding groove on the outer arc wall of the limiting column 29. The first driving mechanism 20 is mainly used to drive the auger 25 to rotate and the screen 26 to vibrate.

[0039] Refer to Figures 1-3 As shown in the figure, a crushing screen device for the raw materials of plastic woven bags. The second driving mechanism 30 includes a second motor 31 located at the top of one side inside the control box 11. The output end direction of the second motor 31 is perpendicular to the output end direction of the first motor 21. The output end of the second motor 31 faces the outside of the control box 11. The output end of the second motor 31 is fixedly connected with a second belt pulley 32. On one side wall of the third crushing roller shaft 50 close to the second belt pulley 32, a second rotating shaft is fixedly connected. One side wall of the second rotating shaft away from the third crushing roller shaft 50 penetrates through the first box body 10. One side wall of the second rotating shaft away from the third crushing roller shaft 50 is fixedly connected with a double-groove belt pulley 34. A same second belt 33 is sleeved in the pulley grooves of the second belt pulley 32 and the double-groove belt pulley 34 close to the third crushing roller shaft 50. On one side wall of the third box body 13 close to the double-groove belt pulley 34, a third rotating shaft is rotatably connected. On one side wall of the third rotating shaft away from the third box body 13, a third belt pulley 36 is fixedly connected. A same third belt 35 is sleeved in the pulley grooves of the third belt pulley 36 and the double-groove belt pulley 34 away from the third crushing roller shaft 50.

[0040] It should be noted that the motor two 31 in the driving mechanism two 30 is in a lying state, the output shaft points to the outside of the control box 11, and a support plate is fixedly connected to its bottom, and the support plate is fixedly connected to the top of the inner side wall of the control box 11. The driving mechanism two 30 is mainly used to drive the crushing roller shaft one 41, the crushing roller shaft two 42 and the crushing roller shaft three 50 to rotate.

[0041] Refer to Figures 1-3 As shown, for a crushing and screening device for plastic woven bag production raw materials, a gear one 43 is fixedly connected to one side wall of the crushing roller shaft one 41 close to the belt pulley three 36, a gear two 44 is fixedly connected to one side wall of the crushing roller shaft two 42 close to the belt pulley three 36, the gear one 43 and the gear two 44 are meshed and connected with each other, and the end of the rotating shaft three away from the belt pulley three 36 penetrates through the box body three 13 and is fixedly connected to the gear two 44.

[0042] It should be noted that the gear one 43 and the gear two 44 make the crushing roller shaft one 41 and the crushing roller shaft two 42 rotate towards the mutually approaching side to further crush the large fragments screened from the screen 26.

[0043] Refer to Figures 1-3 As shown, for a crushing and screening device for plastic woven bag production raw materials, a vertically penetrating storage channel one is arranged at the center of the top of the box body one 10 on the side where the crushing roller shaft three 50 and the fixing plate 52 are mutually close, and a feed hopper 14 is fixedly connected to the top of the box body one 10 at the opening of the storage channel one.

[0044] It should be noted that the storage channel one is arranged to align with the centers of the crushing roller shaft three 50 and the fixing plate 52, and the feed hopper 14 facilitates feeding.

[0045] Refer to Figures 1-3 As shown, for a crushing and screening device for plastic woven bag production raw materials, the box body one 10 and the box body two 12 are mutually penetrated, the box body three 13 and the box body two 12 are mutually penetrated, the box body one 10 and the box body three 13 are mutually penetrated through a sliding channel two, and baffles 27 are arranged at the tops of both sides of the inner side wall of the box body one 10 corresponding to the opening of the sliding channel two. The bottom of the baffle 27 abuts against the top of the screen 26. The mutually approaching side walls of the two baffles 27 are inclined surfaces, and the inclination direction is set towards the box body three 13.

[0046] It should be noted that a water inlet is arranged on one inner side wall of the box body one 10 along the length direction of the box body two 12, and the water inlet faces the auger 25.

[0047] Refer to Figures 1-3As shown in the figure, a crushing screen device for the raw materials of plastic woven bags. On both sides of the bottom of the second box body 12, a number of support columns 15 are arranged at equal intervals. The bottom of the control box 11 is provided with support columns 15 with the same structure. The bottom of the end of the second box body 12 away from the control box 11 is installed with a filter screen 16.

[0048] It should be noted that the filter screen 16 is installed at the end of the bottom of the second box body 12 away from the control box 11. When the debris is transported here, the cleaning is basically completed, and the filter screen 16 can discharge the sewage from here; the size of the filter holes on the filter screen 16 should be smaller than the particle size of the raw materials after crushing, and the size of the filter holes on the filter screen 16 should be much smaller than the size of the sieve holes on the sieve 26.

[0049] Working principle:

[0050] Pour the raw materials to be crushed into the first box body 10 from the feed hopper 14. The crushing roller shaft three 50 drives the crushing knife one 51 to bring the raw materials to the surface of the fixed plate 52 and then squeeze and crush them. The crushed debris will fall along the first sliding channel. The debris falls on the top of the sieve 26. Under the action of the first driving mechanism 20, the sieve 26 generates high-frequency and low-amplitude vibrations to screen the large debris into the third box body 13, and the small debris scatters inside the second box body 12. The auger 25 transports the debris forward. At the same time, the water inlet on the side wall of the first box body 10 can inject water to clean the debris;

[0051] After the large debris falls into the third box body 13, it is finely crushed twice by the crushing assembly 40 and then becomes small debris, and then falls from the inside of the third box body 13 into the inside of the second box body 12. When the auger 25 transports the debris to the end of the second box body 12, the sewage will flow out from the filter screen 16 with impurities.

Claims

1. A crushing screen device for raw materials for producing plastic woven bags, comprising a box body 2 (12) and a box body 1 (10) fixedly connected to one end of the top thereof, a control box (11) fixedly connected to the bottom end of a side wall of the box body 1 (10) away from the box body 2 (12), and a box body 3 (13) fixedly connected to the bottom end of a side wall of the box body 1 (10) close to the box body 2 (12), characterized in that: A crushing roller shaft three (50) is rotatably connected to the top of the inner part of the box body one (10), and the axial extension direction of the crushing roller shaft three (50) is consistent with the width direction of the box body two (12). A plurality of crushing knives one (51) are evenly spaced and spirally distributed on the outer arc wall of the crushing roller shaft three (50). A fixing plate (52) is provided on the side of the crushing roller shaft three (50) away from the box body three (13). The side wall of the fixing plate (52) facing the crushing roller shaft three (50) is an arc surface. A plurality of vertically penetrating sliding channels one are provided on one end of the fixing plate (52) facing the crushing roller shaft three (50). The plurality of crushing knives one (51) correspond to the plurality of sliding channels one by one. The side wall of the fixing plate (52) away from the crushing roller shaft three (50) is fixedly connected to the inner side wall of the box body one (10); A screen (26) is arranged directly below the crushing roller shaft three (50), and the screen (26) is inclined toward the box body three (13). A longitudinally penetrating sliding channel two is arranged at a position corresponding to the screen (26) on the inner side wall of the box body one (10) close to the box body three (13), and the sliding channel two is connected to the inside of the box body three (13). A crushing assembly (40) is arranged inside the box body three (13), and the crushing assembly (40) includes a guide plate (45) arranged at the bottom of the inner side wall of the box body three (13) corresponding to the opening of the sliding channel two. The box body three (13) is rotatably connected with the crushing roller shaft one (41) and the crushing roller shaft two (42) on two parallel inner side walls along the width direction of the box body two (12). A plurality of crushing knives two distributed in a ring array are arranged on the outer arc wall of the crushing roller shaft one (41). The crushing roller shaft one (41) and the crushing roller shaft two (42) have the same structure and are symmetrically arranged with respect to the inside of the box body three (13).

2. A crushing screen device for raw materials for producing plastic woven bags as claimed in claim 1, characterized in that: The control box (11) is provided with a driving mechanism 1 (20) and a driving mechanism 2 (30) inside. The driving mechanism 1 (20) includes a motor 1 (21) located at the bottom end of the control box (11). The output end of the motor 1 (21) is arranged toward the box body 2 (12). The output end of the motor 1 (21) is fixedly connected to a pulley 4. A pulley 1 (22) is arranged directly above the pulley 4. The pulley 1 (22) and the outer side of the pulley 4 are sleeved with the same belt 1 (23). A limiting column (29) is fixedly connected to a side wall of the pulley 1 (22) close to the box body 2 (12). The outer arc wall of the limiting column (29) is close to the box body. An annular slide groove is provided at one end of the second (12), and a horizontal side surface of the annular slide groove is inclined toward the direction of the second box body (12). A pull rod (28) is slidably connected in the annular slide groove. The end of the pull rod (28) away from the limiting column (29) passes through the first box body (10) and is fixedly connected to the screen (26). The end of the pulley four away from the motor one (21) is fixedly connected to the rotating shaft one (24), and the end of the rotating shaft one (24) away from the motor one (21) passes through the second box body (12). The end of the rotating shaft one (24) away from the motor one (21) is fixedly connected to the auger (25), and the auger (25) is located inside the second box body (12).

3. A crushing screen device for raw materials for producing plastic woven bags as claimed in claim 2, characterized in that: The driving mechanism 2 (30) comprises a motor 2 (31) located at the top of one side inside the control box (11), the output end direction of the motor 2 (31) is perpendicular to the output end direction of the motor 1 (21), the output end of the motor 2 (31) faces the outside of the control box (11), the output end of the motor 2 (31) is fixedly connected to the pulley 2 (32), a side wall of the crushing roller shaft 3 (50) close to the pulley 2 (32) is fixedly connected to the rotating shaft 2, a side wall of the rotating shaft 2 away from the crushing roller shaft 3 (50) passes through the box body 1 (10), and the rotating shaft 2 is far away from the crushing roller shaft 3 (50). A double groove pulley (34) is fixedly connected to a side wall away from the crushing roller shaft three (50); the wheel grooves of the pulley two (32) and the double groove pulley (34) close to the crushing roller shaft three (50) are both sleeved with the same belt two (33); a rotating shaft three is rotatably connected to a side wall of the box body three (13) close to the double groove pulley (34); a pulley three (36) is fixedly connected to a side wall of the rotating shaft three away from the box body three (13); the pulley three (36) and the wheel grooves of the double groove pulley (34) away from the crushing roller shaft three (50) are both sleeved with the same belt three (35).

4. A crushing screen device for raw materials for producing plastic woven bags as claimed in claim 1, characterized in that: A side wall of the crushing roller shaft 1 (41) close to the pulley 3 (36) is fixedly connected to a gear 1 (43), and a side wall of the crushing roller shaft 2 (42) close to the pulley 3 (36) is fixedly connected to a gear 2 (44). The gear 1 (43) and the gear 2 (44) are meshed and connected with each other. The end of the rotating shaft 3 away from the pulley 3 (36) passes through the box body 3 (13) and is fixedly connected to the gear 2 (44).

5. A crushing screen device for raw materials for producing plastic woven bags as claimed in claim 1, characterized in that: A vertically penetrating storage channel 1 is provided at the center of the top of the box body 1 (10) on the side where the crushing roller shaft 3 (50) and the fixed plate (52) are close to each other, and a feed hopper (14) is fixedly connected to the top of the box body 1 (10) at the opening of the storage channel 1.

6. A crushing screen device for raw materials for producing plastic woven bags as claimed in claim 1, characterized in that: The box body 1 (10) and the box body 2 (12) are interconnected, the box body 3 (13) and the box body 2 (12) are interconnected, the box body 1 (10) and the box body 3 (13) are interconnected through the sliding channel 2, and the tops of both sides of the inner wall of the box body 1 (10) corresponding to the opening of the sliding channel 2 are provided with baffles (27), the bottom of the baffles (27) is in contact with the top of the screen (26), and the side walls of the two baffles (27) close to each other are inclined, and the inclination direction is arranged toward the box body 3 (13).

7. A crushing screen device for raw materials for producing plastic woven bags as claimed in claim 1, characterized in that: A plurality of support columns (15) are arranged at equal intervals on both sides of the bottom of the second box body (12), a support column (15) with the same structure is arranged at the bottom of the control box (11), and a filter screen (16) is installed at the bottom of the end of the second box body (12) away from the control box (11).

8. A crushing screen device for raw materials for producing plastic woven bags as claimed in claim 7, characterized in that: The size of the filter holes on the filter screen (16) is smaller than the particle size of the raw material after crushing, and the size of the filter holes on the filter screen (16) is much smaller than the size of the sieve holes on the screen (26).

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