Plastic particle preparation process

Abstract

The invention belongs to the technical field of plastic particle processing, and particularly relates to a plastic particle preparation process, in particular to a slitting structure which comprises a transverse rod and a vertical rod, the transverse rod is slidably connected with a processing part, the vertical rod is slidably connected with a moving frame, the moving frame is slidably connected with an auxiliary knife, and the moving frame is slidably connected with a cutting knife. A first compression spring is fixedly connected between the movable frame and the cutting knife, the plastic particle cutting structure further comprises a pressing plate rotationally connected to the cutting knife, and the plastic particle cutting structure further comprises a scraping part fixedly connected to the auxiliary knife. A vertically-through container is connected to the connecting frame in the mode that bolts are screwed into the connecting threaded holes in the sliding plate; in the plastic particle preparation process, various recycled plastics can be subjected to multi-direction slitting operation, so that the plastics can be divided into multiple parts, dead angles during subsequent cleaning are reduced, and the cleaning difficulty is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of plastic particle processing, and in particular relates to a plastic particle preparation process. Background Art

[0002] Plastic pellet processing is a kind of plastic mechanical processing technology, which mainly processes waste plastic into recycled plastic pellets through recycling, cleaning, crushing, melting, extrusion, cooling, cutting and other processes. Plastic pellet processing has significant environmental significance and economic value. With the growth of market demand, policy support and technological progress, the plastic pellet processing industry will usher in a broader development prospect;

[0003] After the plastic is recycled, if it is cleaned directly, it will be difficult to clean thoroughly due to the many dead corners that may exist in the plastic, and impurities are likely to remain. If the plastic can be simply cut before cleaning, the dead corners in the cleaning process can be reduced and the cleaning difficulty can be reduced. However, if the plastic is only simply cut in a single vertical direction, when the hardness of the plastic is high, the cutting operation may not be able to be performed, which will affect the subsequent cutting effect. Summary of the invention

[0004] In view of this, the technical problem to be solved by the present invention is to provide a plastic particle preparation process. During the preparation of plastic particles, various types of recycled plastics can be cut in multiple directions, so that the plastics can be divided into multiple parts, reducing dead angles during subsequent cleaning and reducing the difficulty of cleaning.

[0005] A slitting structure comprises a transverse rod and a vertical rod, wherein a processing part is slidably connected to the transverse rod, a moving frame is slidably connected to the vertical rod, an auxiliary knife is slidably connected to the moving frame, a cutting knife is slidably connected to the moving frame, and a first compression spring is fixedly connected between the moving frame and the cutting knife.

[0006] The invention also comprises a pressing plate which is rotatably connected to the cutting knife.

[0007] The utility model also comprises a scraping part which is fixedly connected to the auxiliary knife.

[0008] Also included is a cylindrical rod slidably connected to the cutting knife.

[0009] It also includes an oblique plate fixedly connected to the processing portion.

[0010] A plastic granule preparation process, using a cutting structure as described above:

[0011] Step 1: Connect a container that penetrates from top to bottom to the connection frame by screwing bolts into a plurality of connection threaded holes on the slide plate;

[0012] Step 2: operate the push plate to slide and cooperate with the processing part to slide so that part of the plastic in the container falls evenly into the processing part;

[0013] Step 3: operate the processing part to gradually slide from left to right on the transverse rod, and make the moving frame slide down regularly;

[0014] Step 4, when the cutting knife slides upward for a long time on the moving frame during the cutting process, the moving frame is reset;

[0015] Step 5, rotating the pressing plate to the lower side of the cutting knife, and then sliding the processing part to move the plastic originally located at the lower side of the cutting knife to the lower side of the auxiliary knife;

[0016] Step 6, lower the moving frame again and make the auxiliary knife slide back and forth on the moving frame;

[0017] Step seven, looping steps three to six, then removing the plastic on the processing part for subsequent cleaning, fine crushing, melting, extrusion, cutting and cooling operations to complete the processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0019] Figure 1 It is a structural schematic diagram of the processing department;

[0020] Figure 2 It is a structural diagram of the vertical rod;

[0021] Figure 3 is a schematic diagram of the structure of a cutting knife;

[0022] Figure 4 It is a structural schematic diagram of the auxiliary knife;

[0023] Figure 5 It is a structural schematic diagram of the push plate;

[0024] Figure 6 is a structural diagram of a connection frame;

[0025] Figure 7 and Figure 8 It is a schematic diagram of the overall structure of a cutting structure. DETAILED DESCRIPTION

[0026] like Figure 1-5 and Figure 7 As shown:

[0027] A slitting structure includes a transverse rod 101 and a vertical rod 201, the transverse rod 101 is slidably connected to a processing part 102, the vertical rod 201 is slidably connected to a moving frame 202, the moving frame 202 is slidably connected to an auxiliary knife 203, the moving frame 202 is slidably connected to a cutting knife 301, a first compression spring is fixedly connected between the moving frame 202 and the cutting knife 301, the transverse rod 101 is fixedly connected to a first motor, a first lead screw is fixedly connected to the output shaft of the first motor, the first lead screw is threadedly connected to the processing part 102, a first electric push rod capable of pushing the moving frame 202 to slide is fixedly connected to the vertical rod 201, a second electric push rod capable of pushing the auxiliary knife 203 to slide is fixedly connected to the moving frame 202, and the first compression spring can provide a downward elastic force for the cutting knife 301.

[0028] The recycled plastic is added into the processing part 102, and then the processing part 102 is operated to slide from left to right on the horizontal rod 101, so that the processing part 102 gradually passes through the lower side space of the cutting knife 301. During this process, the moving frame 202 is regularly operated to slide downward on the vertical rod 201, so that the moving frame 202 gradually drives the cutting knife 301 to move downward, and the cutting knife 301 is used to cut the plastic. When the cutting knife 301 moves to the contact position with the plastic, the moving frame 202 is continuously operated to move downward, so that the first compression spring is gradually deformed, and then gradually raised. The high elastic force applied to the cutting knife 301, during this process, the cutting knife 301 will apply a gradually increasing cutting force to the plastic, thereby facilitating a thorough cutting operation on the plastic. At the same time, when the overall strength of the recovered plastic is relatively hard and cannot be directly cut off by vertical cutting, thereby making it impossible for the cutting knife 301 to complete the cutting operation, after the cutting knife 301 contacts the impurities, the cutting knife 301 itself will overcome the elastic force of the first compression spring and gradually slide upward adaptively on the moving frame 202, thereby protecting the cutting knife 301 and maintaining a long-term cutting effect.

[0029] After a cutting operation is performed using the cutting knife 301, the movable frame 202 is slid upward to reset, and then the processing part 102 is moved again to change the cutting position, so as to facilitate a comprehensive cutting operation on the plastic on the processing part 102. During each cutting operation using the cutting knife 301, when the overall strength of the recovered plastic is relatively hard, causing the cutting knife 301 to adaptively slide upward for a long distance on the movable frame 202, after the movable frame 202 is slid upward to reset, and the plastic that has just completed the cutting operation is moved to the lower side of the auxiliary knife 203 by the moving processing part 102, the movable frame 202 is slid down again, and at this time the cutting knife 301 can press against the plastic. The continuous downward movement of the movable frame 202 will cause the cutting knife 301 to gradually increase the pressing force on the plastic and fix it. During this process, the plastic can be stably fixed in the original position. When the movable frame 202 continues to move down to the position where the auxiliary knife 203 contacts the plastic, the auxiliary knife 203 is operated to slide on the movable frame 202, and then the auxiliary knife 203 is used to rub and cut the plastic in the horizontal direction, and then the plastic is further tried to be cut, which is convenient for multi-directional cutting operations on the recycled plastic. In the process of preparing plastic particles, the device can perform multi-directional cutting operations on various types of recycled plastics, so that the plastic can be divided into multiple parts, reducing dead angles during subsequent cleaning and reducing the difficulty of cleaning.

[0030] like Figure 3 As shown:

[0031] The cutting blade 301 further comprises a pressing plate 302 which is rotatably connected to the cutting blade 301 , and a second motor which can drive the pressing plate 302 to rotate is fixedly connected to the cutting blade 301 .

[0032] When the cutting knife 301 is needed to perform a vertical cutting operation on the plastic, the pressing plate 302 is rotated to an upward position, and then the movable frame 202 is operated to move downward to complete the cutting operation on the plastic. When the cutting knife 301 is needed to press and fix the plastic so as to facilitate the subsequent horizontal rubbing and cutting operation of the plastic by the auxiliary knife 203 sliding forward and backward, the pressing plate 302 is rotated to Figure 3 In the posture shown, the movable frame 202 slides down again, so that the pressing plate 302 can bear the effect of pressing the plastic in the future, bringing convenience to the subsequent cutting operation.

[0033] like Figure 4 As shown:

[0034] It also includes a scraping portion 204 fixedly connected to the auxiliary knife 203 .

[0035] After the cutting knife 301 is lowered for a cutting operation, the auxiliary knife 203 can be operated to slide back and forth on the moving frame 202 after the cutting knife 301 is reset, thereby driving the scraping part 204 to slide back and forth synchronously with the auxiliary knife 203. During this process, the scraping part 204 can scrape the surface of the cutting knife 301 to scrape off the plastic that may be adhered to the surface of the cutting knife 301, ensuring that during the cutting operation, the surface of the cutting knife 301 will not be adhered to and there will be a lot of plastic, thereby ensuring a long-term cutting effect;

[0036] At the same time, the pressing plate 302 can be operated to reciprocate on the cutting knife 301, and then the pressing plate 302 can be used to knock the surface of the cutting knife 301 to make the cutting knife 301 vibrate, which further facilitates the removal of the plastic adhering to the cutting knife 301.

[0037] like Figure 3 As shown:

[0038] It also includes a cylindrical rod 303 slidably connected to the cutting knife 301 , and the cutting knife 301 is fixedly connected to a third electric push rod capable of pushing the cylindrical rod 303 to slide.

[0039] When using the scraping part 204 to scrape the surface of the cutting knife 301, the cylindrical rod 303 can be slid out on the cutting knife 301, and then the vertical rod 201 is continuously slid downward until the cylindrical rod 303 is against the position on the processing part 102. At this time, the cutting knife 301 will maintain this height position and will not contact the plastic. Then, the vertical rod 201 is continuously slid downward to make the cutting knife 301 slide adaptively on the vertical rod 201, thereby changing the positional relationship between the scraping part 204 and the cutting knife 301. In this process, the auxiliary knife 203 is operated to slide on the movable frame 202, so that the scraping part 204 can perform a comprehensive scraping operation on the plastic adhered to the surface of the cutting knife 301, so as to facilitate the comprehensive scraping off of the plastic adhered to the cutting knife 301.

[0040] like Figure 1 As shown:

[0041] It also includes an inclined plate 103 fixed to the processing portion 102 .

[0042] When the processing unit 102 moves, the cylindrical rod 303 can be in a position where it can contact the inclined plate 103. Then, when the processing unit 102 is slid, the cutting knife 301 can automatically slide adaptively on the moving frame 202. Then, by monitoring the sliding condition of the moving frame 202, it is possible to monitor whether the processing unit 102 is moving normally, and then perform a self-check on the operation of the equipment, so as to ensure that the fault can be discovered in time when the equipment fails, which brings convenience to subsequent use.

[0043] A displacement sensor can be fixed on the movable frame 202 by tightening bolts on the movable frame 202, and the movable end of the displacement sensor is fixedly connected to the cutting knife 301, and then the sliding condition of the cutting knife 301 can be monitored by using the displacement sensor, so as to facilitate the subsequent switching of the cutting direction or the self-inspection of the operation of the equipment.

[0044] like Figure 6 As shown:

[0045] It also includes a connecting frame 403, on which a slide plate 401 is slidably connected. The connecting frame 403 is provided with a plurality of connecting threaded holes. A container penetrating from top to bottom can be connected to the connecting frame 403 by screwing bolts into the plurality of connecting threaded holes on the slide plate 401. The container can be filled with recycled plastic, and the slide plate 401 can shield the lower side of the container.

[0046] After the plastic on the processing part 102 is fully cut, the processing part 102 can be slid to the rightmost side, and then the movable frame 202 can be operated to slide down, so that the cutting knife 301 can be pressed against the leftmost position of the processing part 102, and then the processing part 102 can be operated to slide to the left on the transverse rod 101. During this process, the cutting knife 301 can scrape the plastic on the processing part 102, and automatically scrape the plastic off the processing part 102, thereby completing the automatic unloading effect;

[0047] When all the plastic on the processing part 102 is scraped off, the slide plate 401 can be slid to a position offset from the connecting frame 403 to allow the plastic in the container to fall, and the processing part 102 can be slid on the transverse rod 101 to allow the plastic to fall evenly on the processing part 102, which facilitates the subsequent re-cutting operation.

[0048] like Figure 5-7 As shown:

[0049] It also includes a contact head 402 fixedly connected to the slide plate 401, a push plate 104 is slidably connected to the processing part 102, a fourth electric push rod is fixedly connected to the processing part 102 and can push the push plate 104 to slide, a second compression spring is fixedly connected between the slide plate 401 and the connecting frame 403, and the second compression spring can provide a thrust for the connecting frame 403 to slide forward.

[0050] When the slide plate 401 needs to be operated to slide open and then add plastic, the push plate 104 is slid on the processing part 102, and the push plate 104 is used to push the contact head 402, so that the slide plate 401 slides on the connecting frame 403 to overcome the elastic force of the second compression spring, and then the plastic in the container falls, completing the effect of automatically adding plastic;

[0051] When the plastic addition is completed, the push plate 104 is slid back to reset, so that the slide plate 401 overlaps the shielding position;

[0052] When cleaning the surface of the cutting knife 301 , the push plate 104 can also be operated to slide on the processing part 102 , and the push plate 104 can be used to actively knock the cutting knife 301 to vibrate the cutting knife 301 , further facilitating thorough cleaning of the cutting knife 301 .

[0053] like Figure 7-8 As shown:

[0054] A buffer rubber is provided on the front side of the push plate 104 .

[0055] The buffer rubber can buffer the striking force generated when the push plate 104 is used to actively strike the cutting blade 301 , thereby preventing the cutting blade 301 from being deformed due to excessive striking.

[0056] like Figure 7-8 As shown:

[0057] The transverse rod 101 and the vertical rod 201 are both provided with a plurality of fixing threaded holes.

[0058] The transverse rod 101 and the vertical rod 201 can be fixed by screwing bolts into a plurality of fixing threads, thereby fixing the entire device and achieving a fixing effect.

[0059] A plastic granule preparation process, using a cutting structure as described above:

[0060] Step 1: Connect a container that penetrates from top to bottom to the connection frame 403 by screwing bolts into a plurality of connection threaded holes on the slide plate 401;

[0061] Step 2: operate the push plate 104 to slide and cooperate with the processing part 102 to slide, so that part of the plastic in the container falls evenly into the processing part 102;

[0062] Step 3: operate the processing unit 102 to gradually slide from left to right on the transverse rod 101, and make the moving frame 202 slide down periodically;

[0063] Step 4: when the cutting knife 301 slides upward for a long time on the moving frame 202 during the cutting process, the moving frame 202 is reset;

[0064] Step 5: rotate the pressing plate 302 to the lower side of the cutting knife 301, and then slide the processing part 102 to move the plastic originally located at the lower side of the cutting knife 301 to the lower side of the auxiliary knife 203;

[0065] Step 6, lower the movable frame 202 again and make the auxiliary knife 203 slide back and forth on the movable frame 202;

[0066] Step seven, looping steps three to six, then removing the plastic on the processing part 102 for subsequent cleaning, fine crushing, melting, extrusion, cutting and cooling operations to complete the processing.

Claims

1. A cutting structure, characterized in that: The invention comprises a transverse rod (101) and a vertical rod (201); a processing portion (102) is slidably connected to the transverse rod (101); a moving frame (202) is slidably connected to the vertical rod (201); an auxiliary knife (203) is slidably connected to the moving frame (202); a cutting knife (301) is slidably connected to the moving frame (202); and a first compression spring is fixedly connected between the moving frame (202) and the cutting knife (301).

2. A slitting structure according to claim 1, characterized in that: It also includes a pressing plate (302) rotatably connected to the cutting knife (301).

3. A slitting structure according to claim 2, characterized in that: It also includes a scraping portion (204) fixedly connected to the auxiliary knife (203).

4. A slitting structure according to claim 3, characterized in that: It also includes a cylindrical rod (303) slidably connected to the cutting knife (301).

5. A slitting structure according to claim 4, characterized in that: It also includes an inclined plate (103) fixedly connected to the processing portion (102).

6. A slitting structure according to claim 5, characterized in that: It also includes a connecting frame (403), on which the sliding plate (401) is slidably connected, and the connecting frame (403) is provided with a plurality of connecting threaded holes.

7. A slitting structure according to claim 6, characterized in that: It also includes a contact head (402) fixedly connected to the slide plate (401), a push plate (104) slidably connected to the processing portion (102), and a second compression spring fixedly connected between the slide plate (401) and the connection frame (403).

8. A slitting structure according to claim 7, characterized in that: The front side of the push plate (104) is provided with a buffer rubber.

9. A slitting structure according to claim 8, characterized in that: The transverse rod (101) and the vertical rod (201) are both provided with a plurality of fixing threaded holes.

10. A process for preparing plastic particles, characterized in that: Using a cutting structure as claimed in claim 7: Step 1, connecting a container that penetrates from top to bottom to the connection frame (403) by screwing bolts into a plurality of connection threaded holes on the slide plate (401); Step 2: operate the push plate (104) to slide and cooperate with the processing part (102) to slide, so that part of the plastic in the container falls evenly into the processing part (102); Step 3, operating the processing part (102) to gradually slide from left to right on the transverse rod (101), and causing the moving frame (202) to slide down periodically; Step 4, when the cutting knife (301) slides upward for a long time on the movable frame (202) during the cutting process, the movable frame (202) is reset; Step 5, rotating the pressing plate (302) to the lower side of the cutting knife (301), and then sliding the processing part (102) to move the plastic originally located at the lower side of the cutting knife (301) to the lower side of the auxiliary knife (203); Step 6, lower the movable frame (202) again and make the auxiliary knife (203) slide back and forth on the movable frame (202); Step seven, looping steps three to six, then removing the plastic on the processing part (102) for subsequent cleaning, fine crushing, melting, extrusion, cutting and cooling operations to complete the processing.

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