Waste plastic film regeneration granulation equipment

Abstract

The utility model relates to the technical field of granulation equipment, in particular to waste plastic film regeneration granulation equipment which comprises a feeding barrel, a cooling mechanism and a grain cutting mechanism, a feeding port is formed in the upper end of the feeding barrel, an auger is arranged in the feeding barrel, a discharging box is arranged at the front end of the feeding barrel, and a discharging port is formed in the front end of the discharging box; the cooling mechanism comprises a cooling box and a rotating roller, and the rotating roller is arranged in the cooling box; the pelletizing mechanism comprises a pelletizing box, a driving roller and a pelletizing cutter, the driving roller and the pelletizing cutter are arranged in the pelletizing box, the pelletizing cutter is driven to move up and down through a first driving gear, a first convex block and a first rotating rod which are arranged on the inner wall of the pelletizing box, and a scraper is driven to move up and down through a second driving gear, a second convex block and a second rotating rod which are arranged on the inner wall of the pelletizing box; through the different positions of the first convex block and the second convex block, when the pelletizing cutter moves upwards, the scraper moves downwards, and plastic particles attached to the pelletizing cutter are scraped away; when the pelletizing cutter moves downwards, the scraper moves upwards, and the pelletizing cutter is not affected to cut plastic strips.

Description

Technical Field

[0001] This utility model relates to the field of granulation equipment technology, specifically to a waste plastic film recycling granulation equipment. Background Technology

[0002] Plastic film is a common item in people's lives. Its advantages, such as good transparency, good moisture resistance, ease of use, and low price, have led to its widespread application in various industries. Currently, large amounts of waste plastic film are generated in production and daily life. This plastic film, once discarded into the natural environment, cannot degrade, causing pollution and environmental damage. Using recycling and granulation equipment to recycle waste plastic film can reduce pollution, protect the environment, save resources, and improve economic efficiency.

[0003] In the prior art, such as the Chinese patent with publication number CN221475728U entitled "A Waste Plastic Recycling Granulation Device", the disclosed technical solution describes that the device uses a double-edged blade to cut plastic strips into pellets. A motor drives the I-shaped seat to rotate through a wheel and belt. The I-shaped seat drives the double-edged blade to move horizontally back and forth through a connecting rod and a slider, so that the double-edged blade can cut plastic strips into pellets during the reciprocating process, thereby improving the pelletizing efficiency. During the pelletizing operation, although the plastic strips may still have a certain degree of adhesion after cooling and solidification, some plastic particles may adhere to the blades during pelletizing, which will affect the next pelletizing and thus affect the pelletizing quality. Utility Model Content

[0004] This invention provides a waste plastic film recycling and granulation equipment to solve the above-mentioned problems.

[0005] This utility model adopts the following technical solution: a waste plastic film recycling and granulation equipment, including a feeding cylinder, a cooling mechanism, and a pelletizing mechanism; a bracket is fixedly installed at the lower end of the feeding cylinder, and a discharge box is fixedly installed at the front end of the feeding cylinder, an electric heating coil is fixedly installed in the discharge box, and multiple discharge ports are opened at the front end of the discharge box; the cooling mechanism is located on the front side of the feeding cylinder, and the cooling mechanism is used to cool the plastic strips extruded from the discharge ports; the pelletizing mechanism includes a pelletizing box, a pelletizing blade, a mounting plate, and a drive assembly, and a discharge plate is fixedly installed in the pelletizing box, and the discharge plate is located below the pelletizing blade; a support is fixedly installed at the lower end of the pelletizing box; sliding grooves are opened at both ends inside the pelletizing box, a drive roller is rotatably installed in the pelletizing box, a first sliding rod is fixedly installed on the pelletizing blade, and the first sliding rod is slidably installed in the sliding groove; the mounting plate... A second sliding rod is fixedly installed on the upper part of the plate, and the second sliding rod is slidably installed in the sliding groove. A scraper is fixedly installed on the mounting plate. There are two scrapers, which are located on both sides of the pelletizing blade, and the lower end of the scraper abuts against the pelletizing blade. The drive assembly is located in the pelletizing box and is used to drive the pelletizing box, the pelletizing blade, and the scraper. The waste plastic film that has been sorted and crushed is heated and melted in the discharge box, and then extruded from the discharge port to form a thin plastic strip. The plastic strip is cooled and solidified in the cooling mechanism. The drive assembly drives the drive roller to rotate and transport the plastic strip to the bottom of the pelletizing blade. The drive mechanism drives the pelletizing blade to move up and down to cut the plastic strip into plastic particles of a certain length. At the same time, the drive mechanism drives the scraper and the pelletizing blade to move in opposite directions, so that the scraper scrapes off the plastic particles attached to the surface of the pelletizing blade.

[0006] Furthermore, the drive assembly includes a second motor, a rotating shaft, a third motor, a first drive gear, and a first rotating rod. The second and third motors are fixedly mounted on the side wall of the pelletizing box. The output shaft of the third motor is fixedly connected to the drive roller. The rotating shaft is rotatably mounted in the pelletizing box. The output shaft of the second motor is fixedly connected to the rotating shaft. The first drive gear is rotatably mounted on the inner wall of the pelletizing box. A first protrusion is fixedly mounted on the first drive gear. One end of the first rotating rod is rotatably mounted on the inner wall of the pelletizing box, and the other end is slidably connected to the first sliding rod. The middle part of the first rotating rod is slidably connected to the first protrusion. A first gear is fixedly mounted on the end of the rotating shaft near the first drive gear. The first gear meshes with the first drive gear. The third motor drives the drive roller to rotate. The second motor drives the first gear to rotate through the rotating shaft. The first gear drives the first protrusion to rotate around the axis of the first drive gear through the first drive gear. The first protrusion drives the first rotating rod to swing, thereby driving the pelletizing blade to move up and down, so that the pelletizing blade cuts the plastic strip into plastic pellets of a certain length.

[0007] Furthermore, the drive assembly also includes a second drive gear, a second protrusion, and a second rotating rod. The second drive gear is rotatably mounted on the inner wall of the pelletizing box away from the first drive gear. The second protrusion is fixedly mounted on the second drive gear. One end of the second rotating rod is rotatably mounted on the inner wall of the pelletizing box, and the other end is slidably connected to the second sliding rod. The middle part of the second rotating rod is slidably connected to the second protrusion. The second gear is fixedly mounted on the end of the rotating shaft near the second drive gear, and the second gear meshes with the second drive gear. The second motor drives the second gear to rotate through the rotating shaft. The second gear drives the second protrusion to rotate around the axis of the second drive gear through the second drive gear. The second protrusion drives the second rotating rod to swing, thereby driving the second sliding rod to move up and down through the mounting plate. By using the different positions of the first and second protrusions, the scraper moves down when the pelletizing knife moves up, scraping off the plastic particles attached to the pelletizing knife. When the pelletizing knife moves down, the scraper moves up, without affecting the pelletizing knife's cutting of plastic strips.

[0008] Furthermore, a feed inlet is provided at the upper end of the feeding cylinder, and a first motor is fixedly installed at the rear end of the feeding cylinder. An auger is rotatably installed in the feeding cylinder, and the auger and the output shaft of the first motor are fixedly connected. The sorted and crushed waste plastic film is fed into the feeding cylinder through the feed inlet, and the first motor drives the auger to rotate and transport the waste plastic film forward to the discharge box.

[0009] Furthermore, the cooling mechanism includes a cooling box and rotating rollers. The cooling box is located on the front side of the feeding cylinder, and there are two rotating rollers installed inside the cooling box. During operation, the cooling box contains coolant, and the plastic strips extruded from the outlet are immersed in the coolant in the cooling box under the action of the rotating rollers, so that the plastic strips are cooled and solidified.

[0010] The beneficial effects are as follows: The inner wall of the pelletizing box is provided with a first drive gear, a first rotating rod, a second drive gear, and a second rotating rod. The first drive gear and the second drive gear are respectively provided with a first protrusion and a second protrusion. The pelletizing blade is driven to move up and down by the first drive gear, the first protrusion, and the first rotating rod, and the scraper is driven to move up and down by the second drive gear, the second protrusion, and the second rotating rod. By using the different positions of the first protrusion and the second protrusion, the scraper moves down when the pelletizing blade moves up, thus scraping off the plastic particles attached to the pelletizing blade. When the pelletizing blade moves down, the scraper moves up, which does not affect the pelletizing blade from cutting plastic strips. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of an embodiment of a waste plastic film recycling and granulation equipment according to the present invention;

[0013] Figure 2 This is a schematic diagram of the pelletizing mechanism in an embodiment of the present invention;

[0014] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0015] Figure 4 This is a cross-sectional view of the pelletizing mechanism according to an embodiment of the present invention;

[0016] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0017] In the diagram: 100, feeding cylinder; 101, feed inlet; 110, first motor; 120, auger; 130, bracket; 140, discharge box; 141, discharge outlet; 200, cooling box; 210, rotating roller; 300, pelletizing box; 301, sliding groove; 302, support; 310, second motor; 311, rotating shaft; 312, first gear; 313, second gear; 320, third motor; 330, drive roller; 340, pelletizing knife; 341, first sliding rod; 350, discharge plate; 360, first drive gear; 361, first protrusion; 370, first rotating rod; 400, mounting plate; 401, second sliding rod; 410, scraper; 420, second drive gear; 421, second protrusion; 430, second rotating rod. Detailed Implementation

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] An embodiment of the waste plastic film recycling and granulation equipment of this utility model, such as... Figures 1 to 5As shown: A waste plastic film recycling and granulation equipment includes a feeding cylinder 100, a cooling mechanism, and a pelletizing mechanism; a bracket 130 is fixedly installed at the lower end of the feeding cylinder 100, and a discharge box 140 is fixedly installed at the front end of the feeding cylinder 100. An electric heating coil is fixedly installed in the discharge box 140, and multiple discharge ports 141 are opened at the front end of the discharge box 140; the cooling mechanism is located at the front side of the feeding cylinder 100 and is used to cool the plastic strips extruded from the discharge ports 141; the pelletizing mechanism includes a pelletizing box 300. The pelletizing box 300 includes a pelletizing blade 340, a mounting plate 400, and a drive assembly. A discharge plate 350 is fixedly installed in the pelletizing box 300, positioned below the pelletizing blade 340. A support 302 is fixedly installed at the lower end of the pelletizing box 300. Sliding grooves 301 are formed at both ends inside the pelletizing box 300. A drive roller 330 is rotatably mounted in the pelletizing box 300. A first sliding rod 341 is fixedly installed on the pelletizing blade 340, slidingly mounted in the sliding grooves 301. The mounting plate 400... A second sliding rod 401 is fixedly installed on the mounting plate 300, and the second sliding rod 401 is slidably installed in the sliding groove 301; a scraper 410 is fixedly installed on the mounting plate 400, and two scrapers 410 are provided, which are located on both sides of the pelletizing blade 340, with the lower end of the scraper 410 abutting against the pelletizing blade 340; a drive assembly is located in the pelletizing box 300, and the drive assembly is used to drive the pelletizing box 300, the pelletizing blade 340, and the scraper 410; the sorted and crushed waste plastic film is discharged into the discharge box 140. The plastic strip is heated and melted, and then extruded from the outlet 141 to form a thin plastic strip. The plastic strip is cooled and solidified in the cooling mechanism. The drive assembly drives the drive roller 330 to rotate and transport the plastic strip to the bottom of the pelletizer 340. The drive mechanism drives the pelletizer 340 to move up and down to cut the plastic strip into plastic granules of a certain length. At the same time, the drive mechanism drives the scraper 410 to move in the opposite direction to the pelletizer 340, so that the scraper 410 scrapes off the plastic granules attached to the surface of the pelletizer 340.

[0020] The drive assembly includes a second motor 310, a rotating shaft 311, a third motor 320, a first drive gear 360, and a first rotating rod 370. The second motor 310 and the third motor 320 are fixedly mounted on the side wall of the pelletizing box 300. The output shaft of the third motor 320 is fixedly connected to the drive roller 330. The rotating shaft 311 is rotatably mounted in the pelletizing box 300. The output shaft of the second motor 310 is fixedly connected to the rotating shaft 311. The first drive gear 360 is rotatably mounted on the inner wall of the pelletizing box 300. A first protrusion 361 is fixedly mounted on the first drive gear 360. One end of the first rotating rod 370 is rotatably mounted on the inner wall of the pelletizing box 300, and the other end is connected to the first sliding rod 341. The first rotating rod 370 and the first protrusion 361 are slidably connected. The first gear 312 is fixedly installed at one end of the rotating shaft 311 near the first drive gear 360. The first gear 312 and the first drive gear 360 mesh. The third motor 320 drives the drive roller 330 to rotate. The second motor 310 drives the first gear 312 to rotate through the rotating shaft 311. The first gear 312 drives the first protrusion 361 to rotate around the axis of the first drive gear 360 through the first drive gear 360. The first protrusion 361 drives the first rotating rod 370 to swing, thereby driving the pelletizing knife 340 to move up and down, so that the pelletizing knife 340 cuts the plastic strip into plastic pellets of a certain length.

[0021] The drive assembly also includes a second drive gear 420, a second protrusion 421, and a second rotating rod 430. The second drive gear 420 is rotatably mounted on the inner wall of the pelletizing bin 300 away from the first drive gear 360. The second protrusion 421 is fixedly mounted on the second drive gear 420. One end of the second rotating rod 430 is rotatably mounted on the inner wall of the pelletizing bin 300, and the other end is slidably connected to the second sliding rod 401. The middle part of the second rotating rod 430 is slidably connected to the second protrusion 421. A second gear 313 is fixedly mounted on one end of the rotating shaft 311 near the second drive gear 420. The second gear 313 meshes with the second drive gear 420. The second motor 310 drives the second gear 313 to rotate via the rotating shaft 311. The second gear 313 drives the second protrusion 421 to rotate around the axis of the second driving gear 420 via the second driving gear 420. The second protrusion 421 drives the second rotating rod 430 to swing, thereby driving the second sliding rod 401 to move up and down via the mounting plate 400. By using the different positions of the first protrusion 361 and the second protrusion 421, the scraper 410 moves down when the pelletizing blade 340 moves up, scraping off the plastic particles attached to the pelletizing blade 340. When the pelletizing blade 340 moves down, the scraper 410 moves up, which does not affect the pelletizing blade 340 cutting plastic strips.

[0022] The upper end of the feeding cylinder 100 is provided with a feed inlet 101, and a first motor 110 is fixedly installed at the rear end of the feeding cylinder 100. An auger 120 is rotatably installed in the feeding cylinder 100, and the output shaft of the auger 120 and the first motor 110 are fixedly connected. The sorted and crushed waste plastic film is fed into the feeding cylinder 100 through the feed inlet 101. The first motor 110 drives the auger 120 to rotate and convey the waste plastic film forward to the discharge box 140.

[0023] The cooling mechanism includes a cooling box 200 and rotating rollers 210. The cooling box 200 is located in front of the feeding cylinder 100. There are two rotating rollers 210, which are rotatably installed inside the cooling box 200. During operation, the cooling box 200 contains coolant. The plastic strips extruded from the outlet 141 are immersed in the coolant in the cooling box 200 under the action of the rotating rollers 210, so that the plastic strips are cooled and solidified.

[0024] Based on the above embodiments, the working principle and process of this utility model are as follows: the sorted and crushed waste plastic film is fed into the feeding cylinder 100 through the feed port 101. The first motor 110 drives the auger 120 to rotate and transport the waste plastic film forward to the discharge box 140. The waste plastic film is heated and melted in the discharge box 140 and then extruded from the discharge port 141 to form a thin plastic strip. During operation, the cooling box 200 contains coolant. The plastic strip extruded from the discharge port 141 is immersed in the coolant in the cooling box 200 under the action of the rotating roller 210, so that the plastic strip is cooled and solidified.

[0025] The third motor 320 drives the drive roller 330 to rotate and convey the plastic strip to the bottom of the pelletizer 340. The second motor 310 drives the first gear 312 to rotate through the rotating shaft 311. The first gear 312 drives the first protrusion 361 to rotate around the axis of the first drive gear 360 through the first drive gear 360. The first protrusion 361 drives the first rotating rod 370 to swing, thereby driving the pelletizer 340 to move up and down, so that the pelletizer 340 cuts the plastic strip into plastic pellets of a certain length.

[0026] The second motor 310 drives the second gear 313 to rotate via the rotating shaft 311. The second gear 313 drives the second protrusion 421 to rotate around the axis of the second driving gear 420 via the second driving gear 420. The second protrusion 421 drives the second rotating rod 430 to swing, thereby driving the second sliding rod 401 to move up and down via the mounting plate 400. By using the different positions of the first protrusion 361 and the second protrusion 421, the scraper 410 moves down when the pelletizing blade 340 moves up, scraping off the plastic particles attached to the pelletizing blade 340. When the pelletizing blade 340 moves down, the scraper 410 moves up, which does not affect the pelletizing blade 340 cutting plastic strips.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A waste plastic film recycling and granulation equipment, characterized in that: Includes a feeding cylinder (100), a cooling mechanism, and a pelletizing mechanism; A bracket (130) is fixedly installed at the lower end of the feeding cylinder (100), and a discharge box (140) is fixedly installed at the front end of the feeding cylinder (100). An electric heating coil is fixedly installed in the discharge box (140), and multiple discharge ports (141) are opened at the front end of the discharge box (140). The cooling mechanism is located on the front side of the feeding cylinder (100), and the cooling mechanism is used to cool the plastic strip extruded from the discharge port (141); The pelletizing mechanism includes a pelletizing box (300), a pelletizing blade (340), a mounting plate (400), and a drive assembly. The pelletizing box (300) has sliding grooves (301) at both ends. A drive roller (330) is rotatably mounted in the pelletizing box (300). A first sliding rod (341) is fixedly mounted on the pelletizing blade (340) and slides in the sliding groove (301). A second sliding rod (401) is fixedly mounted on the mounting plate (400) and slides in the sliding groove (301). Two scrapers (410) are fixedly mounted on the mounting plate (400) on both sides of the pelletizing blade (340), with the lower end of each scraper (410) abutting against the pelletizing blade (340). The drive assembly is disposed in the pelletizing box (300) and is used to drive the pelletizing box (300), the pelletizing blade (340) and the scraper (410).

2. The waste plastic film recycling and granulation equipment according to claim 1, characterized in that: The drive assembly includes a second motor (310), a rotating shaft (311), a third motor (320), a first drive gear (360), and a first rotating rod (370). The second motor (310) and the third motor (320) are fixedly mounted on the side wall of the pelletizing box (300). The output shaft of the third motor (320) is fixedly connected to the drive roller (330). The rotating shaft (311) is rotatably mounted in the pelletizing box (300). The output shaft of the second motor (310) is fixedly connected to the rotating shaft (311). The first drive gear (360) rotates... The first drive gear (360) is fixedly mounted on the inner wall of the pelletizing box (300). One end of the first rotating rod (370) is rotatably mounted on the inner wall of the pelletizing box (300), and the other end is slidably connected to the first sliding rod (341). The middle part of the first rotating rod (370) is slidably connected to the first protrusion (361). The first gear (312) is fixedly mounted on the end of the rotating shaft (311) near the first drive gear (360). The first gear (312) meshes with the first drive gear (360).

3. The waste plastic film recycling and granulation equipment according to claim 2, characterized in that: The drive assembly further includes a second drive gear (420), a second protrusion (421), and a second rotating rod (430). The second drive gear (420) is rotatably mounted on the inner wall of the pelletizing box (300) away from the first drive gear (360). The second protrusion (421) is fixedly mounted on the second drive gear (420). One end of the second rotating rod (430) is rotatably mounted on the inner wall of the pelletizing box (300), and the other end is slidably connected to the second sliding rod (401). The middle part of the second rotating rod (430) is slidably connected to the second protrusion (421). A second gear (313) is fixedly mounted on one end of the rotating shaft (311) near the second drive gear (420). The second gear (313) meshes with the second drive gear (420).

4. The waste plastic film recycling and granulation equipment according to claim 3, characterized in that: The upper end of the feeding cylinder (100) is provided with a feed inlet (101), the rear end of the feeding cylinder (100) is fixedly installed with a first motor (110), and an auger (120) is rotatably installed in the feeding cylinder (100). The auger (120) and the output shaft of the first motor (110) are fixedly connected.

5. The waste plastic film recycling and granulation equipment according to claim 4, characterized in that: The cooling mechanism includes a cooling box (200) and a rotating roller (210). The cooling box (200) is located in front of the feeding cylinder (100). There are two rotating rollers (210), which are rotatably installed inside the cooling box (200).

6. The waste plastic film recycling and granulation equipment according to claim 5, characterized in that: A discharge plate (350) is fixedly installed in the pelletizing box (300), and the discharge plate (350) is located below the pelletizing knife (340); a support (302) is fixedly installed at the lower end of the pelletizing box (300).

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