A plastic particle impurity removing device for plastic processing and a method of using the same

Abstract

This invention relates to the field of plastic processing. The invention discloses a plastic granule impurity removal device and its usage method for plastic processing. The problem this invention aims to solve is that because the blower is located on one side of the barrel, the blower's output can only blow air onto one end of the barrel, resulting in reduced impurity removal efficiency; blowing air alone is insufficient to guarantee the quality of impurity removal from the plastic granules. This invention consists of a scraping and filtering mechanism, a debris collection mechanism, and an adsorption mechanism. The plastic granule impurity removal device and its usage method utilize an S-shaped spiral guide plate to disperse lightweight impurities within the plastic granules. These impurities roll and rub against the inner side of the spiral guide plate, flowing downwards along it. The lightweight impurities floating inside the filter frame are adsorbed into the cavity formed by the outer side of the filter frame and the inner side of the collection pipe. Finally, the impurities in the airflow are filtered through an arc-shaped filter plate.

Description

Technical Field

[0001] This invention relates to the field of plastic processing, specifically to a plastic granule impurity removal device for plastic processing and its usage method. Background Technology

[0002] Plastic granules refer to granular plastics. Common types of plastic granules include general-purpose plastics, engineering plastics, and specialty plastics. Plastic granules are the raw materials for producing plastic products. During the production, packaging, transportation, and dismantling processes, impurities may be introduced into the granules, necessitating impurity removal during processing.

[0003] Most existing impurity removal devices for plastic granules place the granules directly inside a barrel and use a servo motor to drive a stirring shaft to stir them inside the barrel. At the same time, a fan installed on one side of the barrel blows air into the interior of the barrel to remove dust from the plastic granules. However, since the fan is located on one side of the barrel, its output can only blow air into one end of the barrel, which reduces the impurity removal efficiency and cannot effectively remove impurities from all the plastic granules inside the barrel. Furthermore, the plastic granules may contain some particulate impurities that are difficult to blow away by air. Simply blowing air is not enough to guarantee the quality of impurity removal for the plastic granules. Summary of the Invention

[0004] The purpose of this invention is to provide a plastic granule impurity removal device for plastic processing and its usage method, to solve the problems mentioned in the background art, such as the reduced impurity removal efficiency due to the blower being located on one side of the barrel, meaning the blower's output can only blow air onto one end of the barrel; and the difficulty in ensuring the quality of impurity removal from plastic granules by blowing air alone. To achieve the above objective, this invention provides the following technical solution: a plastic granule impurity removal device for plastic processing, comprising a base plate, a support leg on the top surface of the base plate, a scraping and filtering mechanism at the top of the support leg, a debris collection mechanism on the upper side of the scraping and filtering mechanism, a collection pipe on the side of the debris collection mechanism, and an adsorption mechanism on the inner side of the collection pipe.

[0005] Preferably, the scraping and filtering mechanism includes a conical feeding pipe, which is fixedly connected to the top of the support leg. A conical round pipe is fixedly connected to the upper side of the conical feeding pipe, and the conical round pipe is fixedly connected to the collecting pipe. A connecting rod is fixedly connected to the inner side of the conical round pipe, and a hollow disc is fixedly connected to the end of the connecting rod away from the conical round pipe. A storage tank is provided on the inner side of the hollow disc.

[0006] A first spiral scraper is attached to the upper side of the hollow disc, and a second spiral scraper is attached to the top surface of the first spiral scraper. Vertical rods are fixedly installed on the inner sides of the first and second spiral scrapers.

[0007] Preferably, the debris collection mechanism includes a frustum-shaped sleeve, the top edge of which is provided with an annular exhaust groove, the frustum-shaped sleeve is fixedly sleeved on the side of the conical tube, and two rotating rods are rotatably connected to the side of the frustum-shaped sleeve, and arc-shaped gears are fixedly connected to the side of the two rotating rods, and the two arc-shaped gears mesh with each other.

[0008] An arc-shaped clamping plate is fixedly connected to the side of the rotating rod, and the inner wall of the arc-shaped clamping plate forms a storage cavity with the side of the frustum-shaped sleeve. Two arc-shaped filter plates overlap at the top edge of the frustum-shaped sleeve.

[0009] Preferably, the adsorption mechanism includes an outer gear ring, which is rotatably connected to the inner side of the collection tube. A scraper is fixedly connected to the bottom end of the outer gear ring at an incline. A drive gear meshes with the inner side of the outer gear ring. The shaft of the drive gear is rotatably connected to the inner side of the collection tube. A motor is fixedly connected to the side of the collection tube. A transmission belt is sleeved on the side of the motor shaft and the side of the drive gear.

[0010] The side of the drive gear is meshed with an internal gear ring, and the lower end of the internal gear ring is fixedly connected to a filter frame. The bottom end of the filter frame rotates inside the hollow disc, and a through hole is opened in the middle of the side of the filter frame. A spiral guide plate is fixedly connected to the inner side of the filter frame. The spiral guide plate has an S-shaped cross section and is fixed to the outer side of the vertical rod.

[0011] Preferably, the storage tank is located inside the conical feed pipe.

[0012] Preferably, the inner side of the filter frame is provided with reinforcing ribs.

[0013] Preferably, the inner side of the collecting tube is provided with an annular groove, and the inner wall of the groove overlaps with the side of the outer gear ring.

[0014] Preferably, the method of using the plastic granule impurity removal device for plastic processing includes the following steps:

[0015] S1: When removing impurities from plastic granules, the user places the storage box under the conical feed pipe and evenly feeds the plastic granules into the collection pipe. The motor drives the drive gear to rotate counterclockwise, which in turn drives the internal gear ring to rotate clockwise, causing the granules to fall onto the spiral guide plate. Because the spiral guide plate has an S-shaped inclined surface, the plastic granules roll and disperse away from the vertical rod, causing the lightweight impurities in the plastic granules to disperse in all directions. They also roll and rub against the inner side of the spiral guide plate and flow downward along the spiral guide plate, further enhancing the efficiency of dispersing the lightweight impurities in the plastic granules in all directions.

[0016] S2: At this time, the drive gear, in conjunction with the internal gear ring, drives the scraper to rotate counterclockwise. The counterclockwise rotation of the tilted and skewed scraper adsorbs the light debris floating inside the filter frame into the cavity formed by the outside of the filter frame and the inside of the collection tube. Then, the debris in the airflow is filtered by the arc-shaped filter plate, and the airflow is discharged along the exhaust groove. In this way, the air is circulated and the light debris in the plastic particles is filtered.

[0017] S3: After the initial filtration, the plastic granules flow along the arc-shaped filter plate to the upper side of the second spiral scraper. The spiral guide plate drives the vertical rod to rotate clockwise, trapping the plastic granules on the surface of the second spiral scraper in the spiral cavity formed by the second and first spiral scrapers. As the second spiral scraper rotates clockwise, it disperses and pushes the plastic granules in all directions and transports them to the storage tank through the conical feed pipe. Some smaller debris in the plastic granules that cannot be sucked into the outside of the filter frame falls onto the surface of the hollow disc through the gaps on the surface of the first spiral scraper. Since the spiral direction of the second spiral scraper is opposite to that of the first spiral scraper, the debris falling onto the surface of the hollow disc is swept inward by the first spiral scraper and transported into the storage tank, which facilitates the classification, removal, and separate collection of different debris in the plastic granules.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] In this invention, the S-shaped inclined surface of the spiral guide plate causes the plastic granules to roll and disperse away from the vertical rod, carrying lightweight impurities within the plastic granules to disperse in all directions. These impurities roll and rub against the inner side of the spiral guide plate and flow downwards along it, further enhancing the efficiency of dispersion. The counterclockwise rotation of the inclined and skewed scraper draws the lightweight impurities floating inside the filter frame into the cavity formed by the outer side of the filter frame and the inner side of the collection pipe. After the impurities in the airflow are filtered by the arc-shaped filter plate, the airflow is discharged along the exhaust groove. This air circulation further filters the lightweight impurities within the plastic granules, achieving the effect of removing impurities. Furthermore, the air circulation reduces the possibility of dust generation when the user feeds the material into the conical feeding pipe.

[0020] In this invention, after initial filtration, the plastic granules flow along the arc-shaped filter plate to the upper side of the second spiral scraper. The spiral guide plate drives the vertical rod to rotate clockwise, trapping the plastic granules on the surface of the second spiral scraper within the spiral cavity formed by the second and first spiral scrapers. As the second spiral scraper rotates clockwise, it disperses and pushes the plastic granules in all directions and transports them to the storage tank through the conical feed pipe. Some smaller impurities within the plastic granules that cannot be sucked into the outside of the filter frame fall onto the surface of the hollow disc through the gaps on the surface of the first spiral scraper. Since the spiral direction of the second spiral scraper is opposite to that of the first spiral scraper, the impurities falling onto the surface of the hollow disc are drawn inward by the scraping of the first spiral scraper and transported into the storage tank, facilitating the classification, removal, and separate collection of different impurities within the plastic granules.

[0021] In this invention, by pulling one of the arc-shaped clamping plates, the arc-shaped gear on the arc-shaped gear deflects, causing the other arc-shaped clamping plate to open simultaneously, so that the lightweight debris stuck between the frustum-shaped sleeve and the arc-shaped clamping plate falls off, and the two arc-shaped filter plates can be removed and cleaned. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a three-dimensional structural schematic diagram of the adsorption mechanism of the present invention;

[0024] Figure 3 This is a three-dimensional structural diagram of the scraping filter mechanism of the present invention;

[0025] Figure 4 For the present invention Figure 3 Enlarged view of the structure at point A in the middle;

[0026] Figure 5 This is a first partial three-dimensional structural cross-sectional view of the present invention;

[0027] Figure 6 This is a second partial three-dimensional structural cross-sectional view of the present invention;

[0028] Figure 7 This is a three-dimensional structural diagram of the spiral guide plate of the present invention.

[0029] In the diagram: 1. Base plate; 2. Support leg; 3. Scraping and filtering mechanism; 31. Conical discharge pipe; 32. Conical round pipe; 33. Connecting rod; 34. Hollow disc; 35. Storage tank; 36. First spiral scraper; 37. Second spiral scraper; 38. Vertical rod; 4. Debris collection mechanism; 41. Frustum-shaped sleeve; 42. Rotating rod; 43. Arc gear; 44. Arc clamping plate; 45. Exhaust trough; 46. Arc filter plate; 5. Collection pipe; 6. Adsorption mechanism; 61. External gear ring; 62. Drive gear; 63. Motor; 64. Transmission belt; 65. Scraper; 66. Internal gear ring; 67. Filter frame; 68. Spiral guide plate. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figures 1 to 7 The present invention provides a technical solution: a plastic particle impurity removal device for plastic processing, including a base plate 1, a support leg 2 provided on the top surface of the base plate 1, a scraping and filtering mechanism 3 provided at the top of the support leg 2, a debris collection mechanism 4 provided on the upper side of the scraping and filtering mechanism 3, a collection tube 5 provided on the side of the debris collection mechanism 4, and an adsorption mechanism 6 provided on the inner side of the collection tube 5.

[0032] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 7 As shown, the scraping filter mechanism 3 includes a conical feeding pipe 31, which is fixedly connected to the top of the support leg 2. A conical round pipe 32 is fixedly connected to the upper side of the conical feeding pipe 31, and the conical round pipe 32 is fixedly connected to the collection pipe 5. A connecting block is provided between the conical round pipe 32 and the collection pipe 5 to enhance the stability of the connection between the conical round pipe 32 and the collection pipe 5, and to make the lower side of the collection pipe 5 have friction with the upper side of the arc-shaped card plate 44. A connecting rod 33 is fixedly connected to the inner side of the conical round pipe 32. A hollow disc 34 is fixedly connected to the end of the connecting rod 33 away from the conical round pipe 32. A storage tank 35 is provided inside the hollow disc 34. A reinforcing ring is fixedly connected to the inner side of the conical round pipe 32, and the connecting rod 33 is fixedly connected to the inner side of the reinforcing ring.

[0033] A first spiral scraper 36 overlaps the upper side of the hollow disc 34, and a second spiral scraper 37 overlaps the top surface of the first spiral scraper 36. A vertical rod 38 is fixedly installed on the inner side of the first spiral scraper 36 and the second spiral scraper 37. When the user is processing debris, the storage bucket 35 can be removed from the inside of the hollow disc 34.

[0034] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the debris collection mechanism 4 includes a frustum-shaped sleeve 41. The top edge of the frustum-shaped sleeve 41 is provided with an annular exhaust groove 45. The frustum-shaped sleeve 41 is fixedly sleeved on the side of the conical tube 32. Two rotating rods 42 are rotatably connected to the side of the frustum-shaped sleeve 41. Arc gears 43 are fixedly connected to the side of the two rotating rods 42, and the two arc gears 43 mesh with each other.

[0035] An arc-shaped clamping plate 44 is fixedly connected to the side of the rotating rod 42, and the inner wall of the arc-shaped clamping plate 44 and the side of the frustum-shaped sleeve 41 form a storage cavity. Two arc-shaped filter plates 46 overlap at the top edge of the frustum-shaped sleeve 41. Pulling one of the arc-shaped clamping plates 44 causes the arc-shaped gear 43 on the arc-shaped gear 43 to deflect, which drives the other arc-shaped clamping plate 44 to open at the same time, causing the lightweight debris stuck between the frustum-shaped sleeve 41 and the arc-shaped clamping plate 44 to fall out, and the two arc-shaped filter plates 46 can be removed and cleaned.

[0036] In this embodiment, as Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 As shown, the adsorption mechanism 6 includes an outer gear ring 61, which is rotatably connected to the inner side of the collection tube 5. A scraper 65 is fixedly connected to the bottom end of the outer gear ring 61 at an incline. A drive gear 62 meshes with the inner side of the outer gear ring 61. The shaft of the drive gear 62 is rotatably connected to the inner side of the collection tube 5. A motor 63 is fixedly connected to the side of the collection tube 5. A transmission belt 64 is sleeved on the side of the shaft of the motor 63 and the side of the drive gear 62.

[0037] The side of the drive gear 62 is meshed with an internal gear ring 66. The lower end of the internal gear ring 66 is fixedly connected to a filter frame 67. The bottom end of the filter frame 67 rotates inside the hollow disk 34. A through hole is opened in the middle of the side of the filter frame 67. A spiral guide plate 68 is fixedly connected to the inner side of the filter frame 67. The spiral guide plate 68 has an S-shaped cross section and is fixed to the outer side of the vertical rod 38.

[0038] In this embodiment, as Figure 3 , Figure 5 , Figure 6 As shown, the storage bin 35 is located inside the conical feed pipe 31. This ensures that the storage of particulate matter in the storage bin 35 does not interfere with the feeding of material from the conical feed pipe 31.

[0039] In this embodiment, as Figure 3 and Figure 5 As shown, reinforcing ribs are provided on the inner side of the filter frame 67 to increase its strength.

[0040] In this embodiment, as Figure 1 , Figure 3 , Figure 5 As shown, an annular groove is formed on the inner side of the collecting pipe 5, and the inner wall of the groove overlaps with the side of the outer gear ring 61. This ensures the stability of the outer gear ring 61 as it rotates inside the collecting pipe 5.

[0041] The method of use and advantages of the present invention: The method of using the plastic granule impurity removal device for plastic processing is as follows:

[0042] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown:

[0043] S1: When removing impurities from plastic granules, the user places the storage box under the conical feeding pipe 31 and evenly feeds the plastic granules into the collection pipe 5. The motor 63 drives the drive gear 62 to rotate counterclockwise, which in turn drives the internal gear ring 66 to rotate clockwise, causing the granules to fall onto the spiral guide plate 68. Since the inclined surface of the spiral guide plate 68 is S-shaped, the plastic granules roll and disperse away from the vertical rod 38, causing the lightweight impurities in the plastic granules to disperse in all directions. They also roll and rub against the inner side of the spiral guide plate 68 and flow downward along the spiral guide plate 68, further enhancing the efficiency of the dispersion of lightweight impurities in the plastic granules in all directions.

[0044] S2: At this time, the drive gear 62, in conjunction with the internal gear ring 66, drives the scraper 65 to rotate counterclockwise. The counterclockwise rotation of the inclined and skewed scraper 65 adsorbs the light debris floating inside the filter frame 67 into the cavity formed by the outer side of the filter frame 67 and the inner side of the collection pipe 5. Then, after the debris in the airflow is filtered by the arc-shaped filter plate 46, the airflow is discharged along the exhaust groove 45. In this way, the air is circulated and the light debris in the plastic particles is filtered.

[0045] S3: After the initial filtration, the plastic granules flow along the arc-shaped filter plate 46 to the upper side of the second spiral scraper 37. The spiral guide plate 68 drives the vertical rod 38 to rotate clockwise, trapping the plastic granules on the surface of the second spiral scraper 37 in the spiral cavity formed by the second spiral scraper 37 and the first spiral scraper 36. When the second spiral scraper 37 rotates clockwise, it disperses and pushes the plastic granules in all directions and transports them to the storage tank along the conical feed pipe 31. Some small debris in the plastic granules that cannot be sucked into the outside of the filter frame 67 falls onto the surface of the hollow disc 34 through the gaps on the surface of the first spiral scraper 36. Since the spiral direction of the second spiral scraper 37 is opposite to that of the first spiral scraper 36, the debris falling on the surface of the hollow disc 34 is gathered inward by the scraping of the first spiral scraper 36 and transported into the storage tank 35, which facilitates the classification, removal and separate collection of different debris in the plastic granules.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic granule impurity removal device for plastic processing, comprising a base plate (1), characterized in that: The top surface of the base plate (1) is provided with a support leg (2), the top of the support leg (2) is provided with a scraping filter mechanism (3), the upper side of the scraping filter mechanism (3) is provided with a debris collection mechanism (4), the side of the debris collection mechanism (4) is provided with a collection tube (5), and the inner side of the collection tube (5) is provided with an adsorption mechanism (6). The scraping and filtering mechanism (3) includes a conical feeding pipe (31), which is fixedly connected to the top of the support leg (2). A conical round pipe (32) is fixedly connected to the upper side of the conical feeding pipe (31), and the conical round pipe (32) is fixedly connected to the collecting pipe (5). A connecting rod (33) is fixedly connected to the inner side of the conical round pipe (32). A hollow disc (34) is fixedly connected to the end of the connecting rod (33) away from the conical round pipe (32). A storage tank (35) is provided on the inner side of the hollow disc (34). The upper side of the hollow disc (34) is connected to a first spiral scraper (36), and the top surface of the first spiral scraper (36) is connected to a second spiral scraper (37). A vertical rod (38) is fixedly provided on the inner side of the first spiral scraper (36) and the second spiral scraper (37). The spiral direction of the second spiral scraper (37) is opposite to that of the first spiral scraper (36). The debris collection mechanism (4) includes a frustum-shaped sleeve (41), the top edge of which is provided with an annular exhaust groove (45). The frustum-shaped sleeve (41) is fixedly sleeved on the side of the conical tube (32). Two rotating rods (42) are rotatably connected to the side of the frustum-shaped sleeve (41). Arc gears (43) are fixedly connected to the side of the two rotating rods (42), and the two arc gears (43) mesh with each other. The rotating rod (42) is fixedly connected to an arc-shaped card plate (44), and the inner wall of the arc-shaped card plate (44) and the side of the frustum-shaped sleeve (41) form a storage cavity. Two arc-shaped filter plates (46) overlap at the top edge of the frustum-shaped sleeve (41). The adsorption mechanism (6) includes an outer gear ring (61), which is rotatably connected to the inner side of the collection tube (5). A scraper (65) is fixedly connected to the bottom end of the outer gear ring (61) at an incline. A drive gear (62) meshes with the inner side of the outer gear ring (61). The shaft of the drive gear (62) is rotatably connected to the inner side of the collection tube (5). A motor (63) is fixedly connected to the side of the collection tube (5). A transmission belt (64) is sleeved on the side of the shaft of the motor (63) and the side of the drive gear (62). The side of the drive gear (62) is meshed with an internal gear ring (66), and the lower end of the internal gear ring (66) is fixedly connected to a filter frame (67). The bottom end of the filter frame (67) rotates inside the hollow disc (34), and a through hole is opened in the middle of the side of the filter frame (67). A spiral guide plate (68) is fixedly connected to the inner side of the filter frame (67). The spiral guide plate (68) has an S-shaped cross section and is fixed on the outer side of the vertical rod (38).

2. The plastic granule impurity removal device for plastic processing according to claim 1, characterized in that: The storage tank (35) is located inside the conical feed pipe (31).

3. The plastic granule impurity removal device for plastic processing according to claim 2, characterized in that: The filter frame (67) has reinforcing ribs on its inner side.

4. The plastic granule impurity removal device for plastic processing according to claim 3, characterized in that: The inner side of the collecting tube (5) is provided with an annular groove, and the inner wall of the groove overlaps with the side of the outer gear ring (61).

5. The method of using the plastic granule impurity removal device for plastic processing according to claim 4 includes the following steps: S1: When removing impurities from plastic granules, the user places the storage box under the conical feed pipe (31) and evenly feeds the plastic granules into the collection pipe (5). The motor (63) drives the drive gear (62) to rotate counterclockwise, which in turn drives the internal gear ring (66) to rotate clockwise, causing the granules to fall onto the spiral guide plate (68). Since the spiral guide plate (68) has an S-shaped slope, the plastic granules roll and disperse away from the vertical rod (38), causing the lightweight impurities in the plastic granules to disperse in all directions. They roll and rub against the inner side of the spiral guide plate (68) and flow downward along the spiral guide plate (68), further enhancing the efficiency of the lightweight impurities in the plastic granules to disperse in all directions. S2: At this time, the drive gear (62) and the internal gear ring (66) drive the scraper (65) to rotate counterclockwise. The tilted and skewed scraper (65) rotates counterclockwise, adsorbing the light debris floating inside the filter frame (67) into the cavity formed by the outside of the filter frame (67) and the inside of the collection tube (5). Then, the debris in the airflow is filtered by the arc-shaped filter plate (46), and the airflow is discharged along the exhaust groove (45). In this way, the air is circulated and the light debris in the plastic particles is filtered. S3: After the initial filtration, the plastic granules flow along the arc-shaped filter plate (46) to the upper side of the second spiral scraper (37). The spiral guide plate (68) drives the vertical rod (38) to rotate clockwise, trapping the plastic granules on the surface of the second spiral scraper (37) within the spiral cavity formed by the second spiral scraper (37) and the first spiral scraper (36). As the second spiral scraper (37) rotates clockwise, it disperses and pushes the plastic granules in all directions, conveying them through the conical feed pipe (31) to the storage tank. Some small debris inside the granules that cannot be sucked into the outside of the filter frame (67) falls onto the surface of the hollow disc (34) through the gaps on the surface of the first spiral scraper (36). Since the spiral direction of the second spiral scraper (37) is opposite to that of the first spiral scraper (36), the debris falling onto the surface of the hollow disc (34) is gathered inward under the scraping of the first spiral scraper (36) and transported into the storage tank (35), which facilitates the classification, removal and separate collection of different debris inside the plastic granules.

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