A raw material crushing equipment for plastic production

Abstract

The present invention relates to the technical field of crushing equipment, and specifically to a raw material crushing equipment for plastic production. A conveying and slitting mechanism comprises a casing obliquely arranged on a frame, and a lower hopper connected to the frame is arranged at the upper end of the casing, a feed hopper is connected to the lower side of the casing, a conveyor is arranged inside the casing, and partition plates are arranged at intervals on the conveyor belt of the conveyor. By integrating the conveying and slitting mechanism, the blowing mechanism and the portioning mechanism, the "cut first and then crush" processing method is adopted to pre-cut the plastic products into small segments, effectively reducing the interference of large pieces of material on the crushing process, and being able to separate and remove the residual liquid inside the plastic; then, by alternating left and right blowing, ensure that the plastic segments are fully dried; finally, the quantitative feeding of plastic products is achieved with the help of the portioning mechanism, avoiding the problems of feed port blockage and material accumulation caused by excessive one-time feeding or material agglomeration in the traditional way, and further improving the crushing efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of crushing equipment, in particular to a raw material crushing equipment for plastic production. Background Art

[0002] Plastic raw materials, primarily synthetic resins, are the foundation of plastic product production. During plastic processing, raw materials that don't meet required shapes or sizes often need to be crushed for reuse or further processing.

[0003] In the recycling process, common plastic raw materials include discarded plastic bottles and plastic barrels, as well as scraps and sprues from processes such as injection molding, extrusion, and blow molding. These materials are typically collected and continuously conveyed via conveyors to a shredder for processing. This means that in practice, recycled plastics are directly fed into the shredder in batches via conveyors, lacking the necessary pretreatment. Because some discarded plastic bottles still contain liquid and large plastic agglomerates may be present in the scrap, this batch-based direct shredding method presents numerous challenges. First, liquid is not effectively separated and can easily enter the shredder along with the material, particularly the cutting tool area. This can cause the liquid to mix with the shredder residue and adhere to it, leading to equipment blockage and odor generation. Second, excessive input of raw materials or the presence of large agglomerates can easily cause blockage in the feed port and material accumulation, compromising shredding efficiency and potentially reducing equipment stability and safety.

[0004] Therefore, it is urgent to design a raw material crushing equipment for plastic production that has the function of residual liquid pretreatment and can realize continuous batch processing, so as to improve the overall crushing efficiency and ensure the stability and safety of equipment operation. Summary of the Invention

[0005] In order to overcome the shortcomings of the above-mentioned prior art, the present invention provides a raw material crushing device for plastic production that has a residual liquid pretreatment function and can realize continuous batch processing.

[0006] The technical solution of the present invention is: a raw material crushing equipment for plastic production, comprising:

[0007] The frame is provided with a machine frame, and the electric crushing rollers are symmetrically installed in the machine frame;

[0008] The conveying and slitting mechanism includes a casing obliquely arranged on the frame, the casing is located at the rear side of the frame, and a lower hopper connected to the frame is provided at the upper end of the casing, and a feed hopper is connected to the lower side of the casing. A conveyor for conveying plastic products is provided inside the casing, and partition plates are provided at intervals on the conveyor belt of the conveyor, and the partition plates are provided with leakage holes. A multi-saw blade cutting group is installed in the casing, and the partition plates are provided with equally spaced plates, and the spacing between the plates is for the blades of the multi-saw blade cutting group to pass through;

[0009] A blowing mechanism for removing liquid is provided on the housing and is located above the multi-saw blade cutting group;

[0010] The component mechanism includes a mounting plate arranged on the top of the machine frame, two sets of vertical plates symmetrically arranged at the bottom of the mounting plate, guide grooves are provided on the vertical plates, electric push rods are symmetrically installed on the left and right of the mounting plate, and the telescopic ends of the electric push rods on both sides are connected to a stop shell, and the bottom of the stop shell is hinged with an arc plate, and the front and rear sides of the arc plate are respectively provided with an engaging end that is slidably embedded in the adjacent guide groove.

[0011] In one embodiment, a multi-saw blade cutting group includes a drive shaft that rotates at intervals between two sides of a housing, a plurality of circular saw blades are arranged at intervals on the drive shaft, two adjacent groups of circular saw blades are arranged in an alternating manner, and mutually meshing drive gears are provided at the ends of the drive shafts, and a drive motor with an output end connected to the shaft end of one of its drive shafts is installed on one side of the housing.

[0012] In one embodiment, the blowing mechanism includes a turbine fan installed at the bottom of the casing, and the air outlet of the turbine fan is connected to a three-way frame, the two ends of the three-way frame respectively extend to the two sides of the casing, and at least two air outlet frames are arranged at both ends of the three-way frame, and the air outlet frames are connected to the casing, and a centralized frame for collecting waste liquid is provided at the bottom of the casing.

[0013] In one embodiment, the blowing mechanism further comprises a motor mounted on the tee frame, the output end of the motor is connected to a paddle located inside the tee frame, and the end of the paddle is in contact with the side wall of the main channel of the tee frame.

[0014] In one embodiment, it also includes a filter frame connected to the bottom of the casing, the filter frame is located at the lower position of the casing, and an infusion pump is also installed at the bottom of the casing. The liquid outlet of the infusion pump is connected to a nozzle extending into the interior of the filter frame, and a spiral nozzle is rotated at intervals on the nozzle.

[0015] In one embodiment, a cleaning mechanism is further included, which includes an assembly shell arranged on the front side of the machine frame, a hot air blower is installed on the assembly shell, and two conveying pipes are connected to the air outlet of the hot air blower. The two sides of the machine frame are respectively connected to a guide frame connected to the end of the adjacent conveying pipe, and the air outlets of the guide frames are respectively aligned with the electric crushing roller on the same side.

[0016] In one embodiment, the cleaning mechanism also includes a driving gear 2 respectively arranged on the shaft ends of the electric crushing rollers on both sides, and cleaning rollers adapted to the layout of the electric crushing rollers are symmetrically arranged between the two sides of the machine frame. The cleaning rollers are respectively located below the electric crushing rollers on the same side, and a driven gear meshing with the driving gear 2 on the same side is arranged at the shaft ends of the cleaning rollers.

[0017] In one embodiment, the width of the upper section of the guide groove is wider than that of the lower section, and an oblique angle is provided on the opposite sides of the upper sections of the guide grooves so that the corresponding engaging ends of the arc plates can tilt and rotate along the oblique angle.

[0018] Beneficial effects: 1. The present invention integrates a conveying and slitting mechanism, a blowing mechanism and a weighing mechanism, and adopts a "cutting first and then crushing" processing method to pre-cut the plastic products into small segments, which is convenient for subsequent crushing operations and improves processing efficiency. At the same time, this method effectively reduces the interference of large pieces of material on the crushing process, and can separate and remove the residual liquid inside the plastic; then, by alternating left and right blowing, it ensures that the plastic segments are fully dried to prevent the liquid from mixing with the crushed residue to cause adhesion, blockage and odor, thereby significantly improving the overall crushing efficiency; finally, with the help of the weighing mechanism, the quantitative feeding of plastic products is achieved, avoiding the problems of feed port blockage and material accumulation caused by excessive traditional one-time feeding or material agglomeration, further improving the crushing efficiency, and ensuring the stability and safety of equipment operation. This integrated design effectively simplifies the entire operation process from raw material input to crushing completion, making the processing process more efficient and smooth, while reducing the difficulty of operation and maintenance costs.

[0019] 2. The present invention also provides cleaning components such as filter frames, infusion pumps and spiral nozzles to efficiently clean the conveyor and ensure its cleanliness. At the same time, it is equipped with a cleaning mechanism to remove debris stuck between the electric crushing rollers, maintain the good operating condition of the equipment, reduce the failure rate, and reduce the frequency and cost of daily maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the assembly structure of the present invention.

[0021] Figure 2 This is a three-dimensional structural cross-sectional view of components such as the conveying and slitting mechanism and the electric crushing roller of the present invention.

[0022] Figure 3 This is an exploded schematic diagram of the components of the conveying and slitting mechanism of the present invention after being disassembled.

[0023] Figure 4 For the present invention Figure 2 Schematic diagram of the enlarged structure of part A.

[0024] Figure 5 It is a three-dimensional structural cross-sectional view of each component of the blowing mechanism of the present invention.

[0025] Figure 6 This is a three-dimensional structural cross-sectional view of the infusion pump, nozzle, spiral nozzle and other components of the present invention.

[0026] Figure 7 It is a three-dimensional structural cross-sectional view of some parts of the component mechanism of the present invention.

[0027] Figure 8 It is a schematic diagram of the planar structure of the arc plate and the interlocking end and other components of the present invention.

[0028] Figure 9 Schematic diagram of the curved plate of the present invention in use.

[0029] Figure 10 It is a three-dimensional structural cross-sectional view of some components of the cleaning mechanism of the present invention.

[0030] Figure 11 It is a schematic diagram of the planar structure of the electric crushing roller and the cleaning roller of the present invention.

[0031] In the accompanying drawings: 1, frame, 10, machine frame, 11, electric crushing roller, 2, conveying and cutting mechanism, 21, casing, 22, lower hopper, 23, feed hopper, 24, conveyor, 25, partition plate, 251, leakage hole, 26, multi-saw blade cutting group, 261, drive shaft, 262, circular saw blade, 263, drive gear 1, 264, drive motor, 3, blowing mechanism, 31, turbine fan, 32, three-way frame, 33, air outlet frame, 34 , motor, 35, dial plate, 36, central frame, 4, component mechanism, 41, mounting plate, 411, vertical plate, 412, guide groove, 42, electric push rod, 43, baffle shell, 44, arc plate, 441, fitting end, 5, filter frame, 51, infusion pump, 52, nozzle, 53, spiral nozzle, 6, cleaning mechanism, 61, assembly shell, 62, hot air blower, 63, guide frame, 64, driving gear 2, 65, cleaning roller, 66, driven gear. DETAILED DESCRIPTION

[0032] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0033] Example 1: A raw material crushing device for plastic production, such as Figure 1-Figure 5 and Figure 7-Figure 9 As shown, including:

[0034] A frame 1 is provided with a frame 10 fixedly provided on the front side of the frame 1. Electric crushing rollers 11 are symmetrically installed in the frame 10. The electric crushing rollers 11 are used to crush the pre-treated plastic products.

[0035] The conveying and slitting mechanism 2 includes a casing 21 fixedly arranged at the rear side of the frame 1 in an inclined manner, so that the casing 21 is a slope structure from top to bottom, and a lower hopper 22 is provided at the upper end of the casing 21 in communication with the frame 10 for receiving the pre-treated plastic products. The lower side of the casing 21 is connected to a feed hopper 23 as a feeding inlet for the plastic products to be processed. A conveyor 24 for conveying plastic products is provided inside the casing 21, so that the plastic products to be processed are smoothly conveyed from bottom to top. , providing guarantee for subsequent slitting and batch discharging processing, and partition plates 25 are arranged at intervals on the conveyor belt of the conveyor 24, and leakage holes 251 are opened on the partition plates 25. The setting of the leakage holes 251 allows the liquid generated during the slitting process to be smoothly discharged downward, and a multi-saw blade cutting group 26 is installed in the housing 21. The partition plates 25 are provided with equally spaced plates, and the intervals between the plates are for the blades of the multi-saw blade cutting group 26 to pass through, thereby facilitating efficient and continuous cutting processing of plastic products;

[0036] A blowing mechanism 3 for removing liquid is provided on the housing 21 and is located above the multi-saw blade cutting group 26;

[0037] Specifically, the coordinated operation of the conveying and slitting mechanism 2 and the blowing mechanism 3 enables segmented cutting and preliminary quantitative separation of plastic products, pre-processing the plastic products by drying and segmenting them for subsequent batch comminution. Furthermore, the provision of the leakage holes 251 and the overall tilted design of the conveyor 24 effectively ensure the efficient drainage of liquid within the cut plastic segments, preventing accumulation of liquid that could affect comminution efficiency. The blowing mechanism 3 further dries the plastic segments, completing the complete pre-processing process.

[0038] Compared with the traditional centralized feeding and direct processing methods, this solution adopts a pre-treatment method of quantitative batching and first cutting and then crushing, which significantly improves the operating efficiency of subsequent equipment, reduces the failure rate, realizes process integration, simplifies the operation steps, and optimizes the overall processing effect.

[0039] The component mechanism 4 includes a mounting plate 41 provided on the top of the frame 10. Two sets of vertical plates 411 are fixedly provided at the bottom of the mounting plate 41, and the vertical plates 411 on the front and rear sides are respectively affixed to the side walls of the frame 10 on the same side. Guide grooves 412 are provided on the vertical plates 411. Electric push rods 42 are symmetrically installed on the mounting plate 41. The telescopic ends of the electric push rods 42 on both sides are connected to the stop shells 43. The bottom of the stop shells 43 are hinged with arc plates 44. The telescopic operation of the electric push rods 42 drives the stop shells 43 and the arc plates 44 to move up and down. The front and rear sides of the arc plates 44 are respectively provided with an engaging end 441 that is slidably embedded in the adjacent guide grooves 412.

[0040] Specifically, the width of the upper section of the guide groove 412 is wider than that of the lower section, and the upper sections of the left and right opposite guide grooves 412 are provided with an oblique angle on the opposite side, so that the corresponding fitting end 441 of the arc-shaped plate 44 can be tilted and rotated along the oblique angle.

[0041] This makes the rotation and tilting tendency of the arc plate 44 limited by the moving height. When the fitting end 441 drops to the narrow groove area, it is stably limited in the groove body and maintains a horizontal state, so that the arc plate 44 is in a flat closed state (see Figure 8 ), thereby closing the feed channel; on the contrary, when the engaging end 441 is located in the wide groove area, it is less restricted and, under the action of its own gravity, it tilts and expands along the oblique angle, driving the arc-shaped plates 44 on both sides to open (see Figure 9 ), to allow the plastic product to fall smoothly into the interior of the frame 10;

[0042] Through the above structural design, the quantitative feeding of plastic products in batches can be realized, effectively preventing the blockage problem caused by a large amount of material being fed at one time, and improving the continuity and stability of subsequent crushing operations.

[0043] like Figure 2-Figure 4 As shown, the multi-saw blade cutting group 26 includes a drive shaft 261 that rotates at intervals between the left and right sides of the casing 21, and a plurality of circular saw blades 262 are arranged at intervals on the drive shaft 261. Two adjacent groups of circular saw blades 262 are staggered to improve cutting efficiency and uniformity, and mutually meshing drive gears 263 are provided at the ends of the drive shaft 261. A drive motor 264 with an output end connected to the shaft end of one of the drive shafts 261 is installed on the right side of the casing 21.

[0044] like Figure 2 、 Figure 3 and Figure 5 As shown, the blowing mechanism 3 includes a turbine fan 31 fixedly mounted on the bottom of the housing 21. The air outlet of the turbine fan 31 is connected to a three-way frame 32. The left and right ends of the three-way frame 32 extend to the two sides of the housing 21 respectively. The left and right ends of the three-way frame 32 are respectively arranged and connected with four air outlet frames 33. The air outlet frames 33 are connected to the housing 21, and a centralized frame 36 for collecting waste liquid is provided at the bottom of the housing 21, thereby achieving effective drying of plastic products and avoiding the problem of plastic agglomeration caused by waste liquid residue.

[0045] like Figure 5 As shown, the blowing mechanism 3 also includes a motor 34 installed on the tee frame 32. The output end of the motor 34 is connected to a dial plate 35 located inside the tee frame 32. The end of the dial plate 35 contacts and cooperates with the side wall of the main channel of the tee frame 32. The motor 34 drives the dial plate 35 to rotate, which can periodically change the airflow direction of the main channel, so that the airflow intermittently flows to the branch channels on both sides, thereby improving the blowing efficiency and avoiding the problem of uneven local drying.

[0046] During use, ensure the equipment is positioned stably. Plastic products to be processed are then fed through hopper 23 into housing 21 and placed on the conveyor belt of conveyor 24. Driven by conveyor 24, the plastic products are transported upwards. Dividers 25 are provided on the conveyor belt to divide the incoming plastic products into zones, enabling initial quantitative batching.

[0047] As the conveyor belt runs, the plastic products are transported to the multi-saw blade cutting group 26 area. Driven by the drive motor 264, the drive shaft 261 connected thereto rotates, driving the drive gear 1 263 at the end to rotate. Adjacent drive gears 1 263 engage with each other, causing each drive shaft 261 to operate synchronously, thereby driving the circular saw blades 262 on them to rotate at high speed, cutting the conveyed plastic products. After cutting, the plastic products are segmented, and the residual liquid inside flows out, dripping through the leakage holes 251 on the conveyor belt and collecting in the bottom collection frame 36 along the inclined direction of the conveyor belt. Finally, it is discharged uniformly, realizing the effective recovery and discharge of the residual liquid. At the same time, the segmented plastic products are more convenient for subsequent crushing and effectively avoiding the risks of blockage and material accumulation.

[0048] The cut plastic products are then conveyed to the area of ​​the blower mechanism 3, where a turbine blower 31 generates airflow that flows into the interior of the tee frame 32 and, through the branch channels of the drive shaft 261, into the interior of the housing 21 from the air outlet frame 33, sweeping away the plastic segments on the conveyor 24. Simultaneously, the motor 34 is activated, driving the paddle 35 to rotate, periodically shifting the airflow in the main channel of the tee frame 32 and coordinating with the branch channels on both sides to form a two-way airflow that alternates left and right, further removing any residual liquid adhering to the surface of the plastic products and ensuring the effectiveness of the subsequent shredding operation.

[0049] Subsequently, the blow-dried plastic segments pass through the lower hopper 22 and fall into the machine frame 10. At this time, the curved plates 44 are in an open state: the curved plates 44 on both sides are located at the wide slot of the guide groove 412, and the engaging ends 441 are tilted due to the bevel effect, so that the curved plates 44 are in an open state, which facilitates the plastic segments to pass smoothly through the gap between the two curved plates 44 and then fall between the electric crushing rollers 11 below.

[0050] When a certain amount of plastic products have fallen into the container, the electric push rod 42 is activated, pushing the retaining shell 43 and the curved plate 44 downward. The interlocking end 441 descends along the guide groove 412 and enters the narrow groove section, returning to a straight state. This forces the curved plates 44 on both sides to close, temporarily blocking the upper plastic segments from falling and achieving batch quantitative control. Simultaneously, the closed curved plates 44 continue to move downward, acting as pressure plates, exerting pressure on the crushing plastic segments below, forcing them to adhere closely to the electric crushing roller 11, thereby improving crushing efficiency and effectiveness.

[0051] Finally, the plastic fragments that have completed the crushing process are discharged from the bottom of the machine frame 10, and the entire crushing process of the plastic product is completed.

[0052] Example 2: Based on Example 1, Figure 1 、 Figure 3 and Figure 6 As shown, it also includes a filter frame 5 connected to the bottom of the casing 21. The filter frame 5 is located at the lower position of the casing 21, and an infusion pump 51 is also installed at the bottom of the casing 21. The liquid outlet of the infusion pump 51 is connected to a nozzle 52 extending into the interior of the filter frame 5, and a spiral nozzle 53 is rotated at intervals on the nozzle 52.

[0053] While conveyor 24 is operating, infusion pump 51 is simultaneously activated to deliver cleaning fluid or water to nozzle 52 and spiral nozzle 53. Under the action of hydraulic pressure, the water jetting from spiral nozzle 53 causes it to rotate, achieving uniform coverage and spraying, thereby efficiently cleaning the rotating conveyor belt surface, ensuring its cleanliness and further enhancing the overall effect of plastic product pretreatment.

[0054] like Figure 1 、 Figure 7 and Figure 10 As shown, it also includes a cleaning mechanism 6, which includes an assembly shell 61 arranged on the front side of the machine frame 10, and a hot air blower 62 is installed on the assembly shell 61. The air outlet of the hot air blower 62 is connected to two conveying pipes, and the left and right sides of the machine frame 10 are respectively connected to a guide frame 63 connected to the end of the adjacent conveying pipe. The air outlets of the guide frames 63 are respectively aimed at the electric crushing roller 11 on the same side to ensure that the flowing gas is directly blown to the surface of the corresponding electric crushing roller 11, so that the airflow generated by the guide frame 63 can fully cover the electric crushing roller 11, which not only further effectively dries the plastic segment and improves the overall drying effect, but also can synchronously blow away the fragments stuck in the electric crushing roller 11 during the crushing process through the wind flow, and at the same time promote the plastic segment inside the machine frame 10 to remain in a concentrated state tending to the middle area, ensuring a good crushing effect, maintaining a good operating state of the equipment, improving work efficiency, extending service life, and reducing maintenance requirements.

[0055] like Figure 10 and Figure 11As shown, the cleaning mechanism 6 also includes a second driving gear 64 respectively arranged on the shaft ends of the electric crushing rollers 11 on both sides, and cleaning rollers 65 adapted to the layout of the electric crushing rollers 11 are symmetrically arranged between the two sides of the machine frame 10. The cleaning rollers 65 are respectively located below the electric crushing rollers 11 on the same side, and a driven gear 66 meshing with the second driving gear 64 on the same side is provided at the shaft end of the cleaning roller 65. As the electric crushing roller 11 is driven to rotate, the connected driving gear 64 rotates accordingly and meshes with the corresponding driven gear 66, thereby driving the cleaning roller 65 to rotate. The surface of the cleaning roller 65 has tough clustered bristles, which can fit closely to the surface of the electric crushing roller 11, effectively remove the debris stuck therein, ensure the continuous and efficient operation of the equipment, and maintain the overall performance.

[0056] The above description is merely an example of the present invention and is not intended to limit the present invention. Any equivalent substitutions made within the principles of the present invention are intended to be included within the scope of protection of the present invention. Any content not elaborated in detail herein is already known to those skilled in the art.

Claims

1. A raw material crushing device for plastic production, comprising: A frame (1) is provided on the frame (1), and an electric crushing roller (11) is symmetrically installed in the frame (10); The invention is characterized in that it further comprises: a conveying and slitting mechanism (2), the conveying and slitting mechanism (2) comprises a casing (21) obliquely arranged on the frame (1), the casing (21) is located at the rear side of the frame (10), and a lower hopper (22) communicating with the frame (10) is arranged at the upper end of the casing (21), and a feed hopper (23) is communicated with the lower side of the casing (21), a conveyor (24) for conveying plastic products is arranged inside the casing (21), a partition plate (25) is arranged at intervals on the conveyor belt of the conveyor (24), a liquid leakage hole (251) is opened on the partition plate (25), and a multi-saw blade cutting group (26) is installed in the casing (21), and the partition plate (25) has equally spaced plates, and the intervals between the plates are for the blades of the multi-saw blade cutting group (26) to pass through; A blowing mechanism (3) for removing liquid, disposed on the housing (21) and located above the multi-saw blade cutting group (26); The component mechanism (4) includes a mounting plate (41) arranged on the top of the machine frame (10), two groups of vertical plates (411) symmetrically arranged at the bottom of the mounting plate (41), guide grooves (412) being provided on the vertical plates (411), electric push rods (42) being symmetrically arranged at the left and right sides of the mounting plate (41), the telescopic ends of the electric push rods (42) on both sides being connected to a stop shell (43), the bottom of the stop shell (43) being hinged with an arc plate (44), and the front and rear sides of the arc plate (44) are respectively provided with an engaging end (441) slidably embedded in the adjacent guide groove (412); The width of the upper groove body of the guide groove (412) is wider than that of the lower groove body, and an oblique angle is provided on the opposite sides of the upper groove bodies of the left and right guide grooves (412) so that the engaging end (441) of the corresponding arc plate (44) can be tilted and rotated along the oblique angle.

2. A raw material crushing equipment for plastic production according to claim 1, characterized in that: The multi-saw blade cutting group (26) includes a drive shaft (261) that rotates at intervals between two sides of the housing (21), and a plurality of circular saw blades (262) are arranged at intervals on the drive shaft (261). Two adjacent groups of circular saw blades (262) are arranged in a staggered manner, and mutually meshing drive gears (263) are provided at the ends of the drive shaft (261). A drive motor (264) whose output end is connected to the shaft end of one drive shaft (261) is installed on one side of the housing (21).

3. A raw material crushing equipment for plastic production according to claim 2, characterized in that: The blowing mechanism (3) includes a turbine fan (31) installed at the bottom of the casing (21), and the air outlet of the turbine fan (31) is connected to a three-way frame (32). The two ends of the three-way frame (32) extend to the two sides of the casing (21). At least two air outlet frames (33) are arranged and connected at the two ends of the three-way frame (32). The air outlet frames (33) are connected to the casing (21), and a central frame (36) for collecting waste liquid is provided at the bottom of the casing (21).

4. A raw material crushing device for plastic production according to claim 3, characterized in that: The blowing mechanism (3) further comprises a motor (34) mounted on the three-way frame (32), the output end of the motor (34) being connected to a paddle (35) located inside the three-way frame (32), and the end of the paddle (35) being in contact with the side wall of the main channel of the three-way frame (32).

5. A raw material crushing device for plastic production according to claim 4, characterized in that: The machine also includes a filter frame (5) connected to the bottom of the housing (21), the filter frame (5) is located at a lower position of the housing (21), and an infusion pump (51) is installed at the bottom of the housing (21), the liquid outlet of the infusion pump (51) is connected to a nozzle (52) extending into the interior of the filter frame (5), and a spiral nozzle (53) is rotated at intervals on the nozzle (52).

6. A raw material crushing device for plastic production according to claim 5, characterized in that: The machine frame (10) further comprises a cleaning mechanism (6), the cleaning mechanism (6) comprising an assembly shell (61) arranged on the front side of the machine frame (10), a hot air blower (62) being mounted on the assembly shell (61), an air outlet of the hot air blower (62) being connected to two conveying pipes, and two sides of the machine frame (10) being connected to a guide frame (63) connected to the end of the adjacent conveying pipe, respectively, and air outlets of the guide frame (63) being respectively aligned with the electric crushing roller (11) on the same side.

7. A raw material crushing device for plastic production according to claim 6, characterized in that: The cleaning mechanism (6) further includes a second driving gear (64) respectively arranged on the shaft ends of the electric crushing rollers (11) on both sides, and cleaning rollers (65) adapted to the layout of the electric crushing rollers (11) are symmetrically arranged between the two sides of the machine frame (10). The cleaning rollers (65) are respectively located below the electric crushing rollers (11) on the same side, and a driven gear (66) meshing with the second driving gear (64) on the same side is arranged at the shaft end of the cleaning roller (65).

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