Waste plastic crushing, recycling and granulating device

Abstract

The utility model discloses a waste plastic crushing, recycling and granulating device. The granulating device aims at solving the technical problems that an existing granulating device cannot effectively reduce the blocking rate of granulating holes and cannot achieve backflushing and self-cleaning of the granulating holes. Comprising a water cooling box, the top of the water cooling box is fixedly provided with a horizontally-arranged extrusion barrel, the top of the extrusion barrel communicates with a crushing mechanism, the axis position of the extrusion barrel is provided with a hot extrusion mechanism, the front portion of the extrusion barrel is fixedly provided with a vertically-downward extrusion opening, and the position, corresponding to the extrusion opening, of the peripheral side face of the extrusion barrel is rotationally connected with a rotary barrel; and a plurality of groups of granulation holes which are distributed in a linear array are formed in the rotary cylinder. When the back-flushing and self-cleaning device works, through the arrangement of the rotary cylinder and the back-flushing mechanism, the blockage rate of the granulation holes can be effectively reduced, and efficient back-flushing and self-cleaning of the granulation holes are realized through back-flushing hot air.

Description

Technical Field

[0001] The utility model belongs to the technical field of granulation devices, and in particular relates to a waste plastic crushing and recycling granulation device. Background Art

[0002] When waste plastics are recycled, they are generally crushed and granulated.

[0003] In the prior art, a patent document with publication number CN210082198U discloses a waste plastic crushing and recycling granulation device, including a fixed box, an internal movable sleeve of the fixed box is provided with two hot pressing rollers, the back of the hot pressing roller is located outside the fixed box and is provided with a first pulley, a first driving motor is provided on the side of the first pulley away from the fixed box, a support plate is fixedly connected to the bottom of the first driving motor, and the support plate is welded to the fixed box, an installation box fixedly connected to the fixed box is provided above the hot pressing roller, two crushing rollers are provided in the internal movable sleeve of the installation box, a second pulley located outside the installation box is provided on the back of the crushing roller, and the first driving motor is provided with a first pulley. A belt is wound around the outside of a pulley and a second pulley. The crushing roller in the above device can crush the plastic, and the crushed plastic falls and is heated and softened by a hot pressing roller. The second drive motor then drives the scraper to rotate through a fixed shaft, and the scraper extrude the softened plastic through a granulation hole to form it. However, the granulation holes of the above granulation device are very likely to be blocked after long-term use during operation, and the existing granulation device cannot effectively reduce the blockage rate of the granulation holes and realize the recoil self-cleaning of the granulation holes. Based on this, the utility model provides a waste plastic crushing and recycling granulation device to solve the problems raised in the above background technology. Utility Model Content

[0004] (1) Technical issues to be solved

[0005] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a waste plastic crushing and recycling granulation device, aiming to solve the technical problem that the existing granulation device cannot effectively reduce the blockage rate of the granulation hole and realize the recoil self-cleaning of the granulation hole.

[0006] (2) Technical solution

[0007] In order to solve the above technical problems, the utility model provides such a waste plastic crushing, recycling and granulating device, including a water-cooling box, a horizontally arranged extrusion barrel is fixedly installed on the top of the water-cooling box, the top of the extrusion barrel is connected to a crushing mechanism, a hot extrusion mechanism is installed at the axial position of the extrusion barrel, the front part of the extrusion barrel is fixedly provided with an extrusion port arranged vertically downward, a rotary drum is rotatably connected to the peripheral side surface of the extrusion barrel and the position corresponding to the extrusion port, a plurality of groups of granulation holes distributed in a linear array are opened inside the rotary drum, a cutting frame is slidably connected to the peripheral side surface of the rotary drum, a knife ring is arranged on the surface of the cutting frame and at the position adjacent to each group of granulation holes, a reciprocating frame is rotatably connected to the peripheral side surface of the cutting frame, the rotary drum and the reciprocating frame are both driven by the hot extrusion mechanism, and an anti-cleaning mechanism cooperating with the granulation holes is installed inside the extrusion barrel.

[0008] Preferably, the crushing mechanism includes a crushing box arranged on the upper part of the extruder barrel, the bottom of the crushing box is connected to a collecting pipe, the discharge port of the collecting pipe is fixedly connected to the extruder barrel, the inner wall of the crushing box is rotatably connected to two symmetrically arranged crushing rollers, the tail ends of the two crushing rollers are fixedly installed with linkage gears, the two linkage gears are meshed with each other, a crushing motor is fixedly installed on the side of the crushing box, the output shaft end of the crushing motor is fixedly connected to one of the crushing rollers, and a feed port is fixedly provided on the top of the crushing box.

[0009] Furthermore, the hot extrusion mechanism includes a conveying motor fixedly installed at the tail of the extrusion barrel, the output shaft end of the conveying motor is fixedly installed with an extrusion shaft, the peripheral side of the extrusion shaft is fixedly installed with a spiral extrusion blade, the peripheral side of the spiral extrusion blade is rotationally fitted with the extrusion barrel, the interior of the extrusion shaft is equipped with an electric heating rod a, and the interior of the extrusion barrel is equipped with an electric heating rod b.

[0010] Furthermore, the inner walls of the extrusion cylinder are rotatably connected with coupling a and coupling b respectively, the peripheral side of the coupling a is transmission connected with coupling b through a chain belt, the top of the coupling a and the peripheral side of the extrusion shaft are fixedly installed with linkage bevel gears, the two linkage bevel gears are meshed with each other, the peripheral side of the coupling b is fixedly installed with active bevel gears and half-missing gears respectively, the peripheral side of the rotating cylinder is fixedly installed with a driven bevel gear ring transmission connected with the active bevel gear, the surface of the reciprocating frame is fixedly installed with a horizontally arranged guide rod and a reciprocating gear plate, the peripheral side of the guide rod is slidably connected with the extrusion cylinder, the peripheral side of the guide rod is sleeved with a compression spring matching the extrusion cylinder, and the peripheral side of the half-missing gear is transmission connected with the reciprocating gear plate.

[0011] Furthermore, a water cooling chamber is fixedly provided inside the water cooling box, a filter plate is fixedly installed on the inner wall of the water cooling chamber, and filter holes are evenly distributed on the inner wall of the filter plate.

[0012] Furthermore, the anti-cleaning mechanism includes a hot air blower fixed on the top of the extruder cylinder and a recoil chamber opened inside the extruder cylinder and arranged on the inner side of the rotary cylinder. A filter is fixedly installed on the air inlet port of the hot air blower, and the air outlet port of the hot air blower is fixedly connected to the recoil chamber through a pipeline. A group of regularly distributed recoil holes connected to the recoil chamber are opened on the top of the extruder cylinder.

[0013] (3) Beneficial effects

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] When the utility model is working, the blockage rate of the granulation hole can be effectively reduced by arranging the rotary drum and the back-cleaning mechanism, and the high-efficiency back-flushing self-cleaning of the granulation hole can be achieved by back-flushing hot air. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the waste plastic crushing, recycling and granulating device of the utility model;

[0017] Figure 2 For this utility model Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0018] Figure 3 For this utility model Figure 1 A schematic cross-sectional structure diagram of ;

[0019] Figure 4 For this utility model Figure 3 A schematic diagram of the local enlarged structure at B in the middle;

[0020] Figure 5 This is a schematic diagram of the structure of the knife ring and the reciprocating frame of the utility model;

[0021] Figure 6 For this utility model Figure 5 Schematic diagram of the local enlarged structure at point C in the middle.

[0022] The markings in the attached drawings are: 1, water cooling box; 2, extrusion barrel; 3, extrusion port; 4, rotary barrel; 5, granulation hole; 6, cutting frame; 7, knife ring; 8, reciprocating frame; 9, crushing box; 10, crushing roller; 11, linkage gear; 12, conveying motor; 13, extrusion shaft; 14, spiral extrusion blade; 15, electric heating rod a; 16, electric heating rod b; 17, coupling a; 18, coupling b; 19, active bevel gear; 20, half-missing gear; 21, guide rod; 22, reciprocating tooth plate; 23, compression spring; 24, filter plate; 25, hot air blower; 26, recoil chamber; 27, recoil hole. DETAILED DESCRIPTION

[0023] See also Figure 1 - Figure 6The present specific embodiment is a waste plastic crushing and recycling granulation device, comprising a water cooling box 1, a water cooling chamber is fixedly opened inside the water cooling box 1, a filter plate 24 is fixedly installed on the inner wall of the water cooling chamber, and filter holes are evenly distributed on the inner wall of the filter plate 24;

[0024] By setting the filter plate 24 and the filter holes, the plastic particles entering the water cooling chamber can be effectively water cooled and the water-cooled particles can be intercepted;

[0025] A horizontally arranged extrusion cylinder 2 is fixedly installed on the top of the water cooling box 1, and a crushing mechanism is connected to the top of the extrusion cylinder 2;

[0026] The crushing mechanism includes a crushing box 9 arranged on the upper part of the extruder barrel 2. The bottom of the crushing box 9 is connected to a collecting pipe, and the discharge port of the collecting pipe is fixedly connected to the extruder barrel 2. The inner wall of the crushing box 9 is rotatably connected to two symmetrically arranged crushing rollers 10. The tail ends of the two crushing rollers 10 are fixedly installed with linkage gears 11, and the two linkage gears 11 are meshed with each other. A crushing motor is fixedly installed on the side of the crushing box 9, and the output shaft end of the crushing motor is fixedly connected to a crushing roller 10. The top of the crushing box 9 is fixedly provided with a feed port.

[0027] A hot extrusion mechanism is installed at the axis position of the extrusion barrel 2, an extrusion port 3 arranged vertically downward is fixedly opened at the front of the extrusion barrel 2, a rotary drum 4 is rotatably connected to the peripheral side of the extrusion barrel 2 and corresponding to the position of the extrusion port 3, a plurality of granulation holes 5 distributed in a linear array are opened inside the rotary drum 4, and a cutting frame 6 is slidably connected to the peripheral side of the rotary drum 4;

[0028] A group of guide grooves distributed in a circumferential array are provided on the circumferential side surface of the rotary drum 4, and a guide block slidably connected to the guide groove is installed on the inner wall of the cutting frame 6 and at the position corresponding to each guide groove;

[0029] A knife ring 7 is arranged on the surface of the cutting frame 6 and adjacent to each group of granulating holes 5. A reciprocating frame 8 is rotatably connected to the peripheral side of the cutting frame 6. The rotary drum 4 and the reciprocating frame 8 are driven by a hot extrusion mechanism.

[0030] The hot extrusion mechanism includes a conveying motor 12 fixedly installed at the tail of the extrusion barrel 2, an extrusion shaft 13 is fixedly installed on the output shaft end of the conveying motor 12, a spiral extrusion blade 14 is fixedly installed on the peripheral side of the extrusion shaft 13, the peripheral side of the spiral extrusion blade 14 is rotationally fitted with the extrusion barrel 2, an electric heating rod a15 is built inside the extrusion shaft 13, and an electric heating rod b16 is built inside the extrusion barrel 2;

[0031] By setting the electric heating rod a15 and the electric heating rod b16, the inside of the extrusion tube 2 is maintained at a set temperature, and the plastic entering the extrusion tube 2 is thermally melted by maintaining the constant temperature inside the extrusion tube 2;

[0032] The inner wall of the extrusion cylinder 2 is rotatably connected with a coupling a17 and a coupling b18, respectively. The peripheral side of the coupling a17 is transmission-connected with the coupling b18 through a chain belt. The top of the coupling a17 and the peripheral side of the extrusion shaft 13 are fixedly installed with linkage bevel gears, and the two linkage bevel gears are meshed with each other.

[0033] The circumferential side surfaces of the coupling shaft b18 are respectively fixedly mounted with active bevel gears 19 and half-missing gears 20, the circumferential side surfaces of the rotating cylinder 4 are respectively fixedly mounted with driven bevel gear rings that are transmission-connected to the active bevel gears 19, the surface of the reciprocating frame 8 is respectively fixedly mounted with horizontally arranged guide rods 21 and reciprocating toothed plates 22, the circumferential side surfaces of the guide rods 21 are slidingly connected to the extrusion cylinder 2, the circumferential side surfaces of the guide rods 21 are sleeved with compression springs 23 that cooperate with the extrusion cylinder 2, and the circumferential side surfaces of the half-missing gears 20 are transmission-connected to the reciprocating toothed plates 22;

[0034] An anti-cleaning mechanism cooperating with the granulation hole 5 is installed inside the extrusion cylinder 2 .

[0035] The backwash mechanism includes a hot air blower 25 fixed on the top of the extruder cylinder 2 and a backwash chamber 26 opened inside the extruder cylinder 2 and arranged on the inner side of the rotary cylinder 4. A filter is fixedly installed on the air inlet port of the hot air blower 25, and the air outlet port of the hot air blower 25 is fixedly connected to the backwash chamber 26 through a pipeline. A group of regularly distributed backwash holes 27 connected to the backwash chamber 26 are opened on the top of the extruder cylinder 2:

[0036] During operation, the crushing motor, the conveying motor 12 and the hot air blower 25 all work at the set power. After the conveying motor 12 works, on the one hand, it drives the spiral extrusion blades 14 to extrude the molten plastic toward the direction of the rotor 4 and the granulation hole 5, and on the other hand, it drives the cutting frame 6 and the knife ring 7 to reciprocate within the set stroke. When the knife ring 7 reciprocates, it rotates synchronously with the rotor 4. The molten plastic extruded through the extrusion port 3 is finally extruded through the granulation hole 5. The extruded plastic particles fall into the water cooling box 1 for water cooling. As the rotor 4 rotates, the granulation hole 5 on the rotor 4 is recycled and circulated by recoil self-cleaning.

[0037] All technical features in this embodiment can be freely combined according to actual needs.

[0038] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A waste plastic crushing, recycling and granulation device, comprising a water cooling box (1), characterized in that: A horizontally arranged extrusion barrel (2) is fixedly installed on the top of the water cooling box (1), a crushing mechanism is connected to the top of the extrusion barrel (2), a hot extrusion mechanism is installed at the axial position of the extrusion barrel (2), an extrusion port (3) arranged vertically downward is fixedly opened at the front of the extrusion barrel (2), a rotary drum (4) is rotatably connected to the peripheral side surface of the extrusion barrel (2) and the position corresponding to the extrusion port (3), a plurality of groups of granulation holes (5) distributed in a linear array are opened inside the rotary drum (4), a cutting frame (6) is slidably connected to the peripheral side surface of the rotary drum (4), a knife ring (7) is arranged on the surface of the cutting frame (6) and at the position adjacent to each group of granulation holes (5), a reciprocating frame (8) is rotatably connected to the peripheral side surface of the cutting frame (6), the rotary drum (4) and the reciprocating frame (8) are both driven by the hot extrusion mechanism, and an anti-cleaning mechanism cooperating with the granulation holes (5) is installed inside the extrusion barrel (2).

2. The waste plastic crushing, recycling and granulation device according to claim 1 is characterized in that: The crushing mechanism comprises a crushing box (9) arranged on the upper part of the extruder barrel (2), the bottom of the crushing box (9) is connected to a collecting pipe, the discharge port of the collecting pipe is fixedly connected to the extruder barrel (2), the inner wall of the crushing box (9) is rotatably connected to two symmetrically arranged crushing rollers (10), the tail ends of the two crushing rollers (10) are fixedly installed with linkage gears (11), the two linkage gears (11) are meshed with each other, a crushing motor is fixedly installed on the side of the crushing box (9), the output shaft end of the crushing motor is fixedly connected to one of the crushing rollers (10), and a feed port is fixedly arranged on the top of the crushing box (9).

3. The waste plastic crushing, recycling and granulation device according to claim 2 is characterized in that: The hot extrusion mechanism comprises a conveying motor (12) fixedly mounted on the rear end of an extrusion barrel (2); an extrusion shaft (13) is fixedly mounted on the output shaft end of the conveying motor (12); a spiral extrusion blade (14) is fixedly mounted on the peripheral side of the extrusion shaft (13); the peripheral side of the spiral extrusion blade (14) is rotationally fitted with the extrusion barrel (2); an electric heating rod a (15) is built into the interior of the extrusion shaft (13); and an electric heating rod b (16) is built into the interior of the extrusion barrel (2).

4. The waste plastic crushing, recycling and granulation device according to claim 3 is characterized in that: The inner wall of the extrusion cylinder (2) is rotatably connected with a coupling a (17) and a coupling b (18), and the peripheral side surface of the coupling a (17) is transmission-connected with the coupling b (18) through a chain belt. The top of the coupling a (17) and the peripheral side surface of the extrusion shaft (13) are fixedly installed with linkage bevel gears, and the two linkage bevel gears are meshed with each other. The peripheral side surface of the coupling b (18) is fixedly installed with active bevel gears (19) and a half-missing gear (20). The rotating cylinder (4) A driven bevel gear ring which is transmission-connected to the active bevel gear (19) is fixedly mounted on the circumferential side surface, a horizontally arranged guide rod (21) and a reciprocating tooth plate (22) are fixedly mounted on the surface of the reciprocating frame (8), the circumferential side surface of the guide rod (21) is slidingly connected to the extrusion cylinder (2), the circumferential side surface of the guide rod (21) is sleeved with a compression spring (23) which cooperates with the extrusion cylinder (2), and the circumferential side surface of the half-missing gear (20) is transmission-connected to the reciprocating tooth plate (22).

5. The waste plastic crushing, recycling and granulation device according to claim 4 is characterized in that: A water cooling chamber is fixedly provided inside the water cooling box (1), a filter plate (24) is fixedly installed on the inner wall of the water cooling chamber, and filter holes are evenly distributed on the inner wall of the filter plate (24).

6. The waste plastic crushing, recycling and granulation device according to claim 5 is characterized in that: The anti-cleaning mechanism comprises a hot air blower (25) fixed to the top of the extrusion cylinder (2) and a recoil chamber (26) opened inside the extrusion cylinder (2) and arranged on the inner side of the rotary cylinder (4); a filter is fixedly installed on the air inlet port of the hot air blower (25); the air outlet port of the hot air blower (25) is fixedly connected to the recoil chamber (26) through a pipeline; and a group of recoil holes (27) regularly distributed and connected to the recoil chamber (26) are opened on the top of the extrusion cylinder (2).

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