Waste plastic recycling, granulating and melting treatment device

Abstract

The invention belongs to the technical field of plastic recycling, and particularly relates to a waste plastic recycling, granulating and melting treatment device which comprises a crushing frame, the bottom of the crushing frame communicates with two inclined frames, the bottom ends of the inclined frames communicate with vertical frames, the bottom ends of the vertical frames communicate with melting frames, and each melting frame is provided with a heating cavity and a melting cavity. Sliding material pushing cylinders are arranged in the melting cavities correspondingly, sliding material pushing columns are arranged on the upper portions of the inclined frames correspondingly, the material pushing columns have the states of stretching into the vertical frames and leaving the vertical frames, and rotating baffles are rotationally connected to the communicating positions of the crushing frames and the inclined frames. The crushing frame crushes materials, the rotating baffle guides the materials, the materials enter one melting cavity, after the materials are melted, the pushing column completely pushes the materials in the vertical frame into the melting cavity, the pushing barrel automatically pushes the materials out of the melting cavity, material residues are effectively avoided, the two melting cavities alternately melt the materials, melting work is not interrupted, and the production efficiency is improved. And the continuity is high, and the recovery treatment efficiency of the waste plastics is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of plastic recycling, and particularly relates to a device for melting and granulating waste plastics during recycling. Background Art

[0002] The process of waste plastic recycling specifically includes pretreatment, melting and granulation, modification treatment, and post-treatment. Among them, the melting of waste plastics is a process of changing the broken plastics from a solid state to a fluid state by heating, so as to reproduce polyvinyl chloride cable material particles. However, there are some problems with existing melting treatment devices: (1) During the transportation of materials from the feed port to the melting chamber, and during the melting process of the materials, they are likely to remain in the pipelines and chambers of the device, affecting the overall treatment effect; (2) Usually, there is only one melting chamber. During the melting and pushing out of the materials, it is necessary to pause the feeding and melting work, resulting in a discontinuous treatment process and limited treatment efficiency. Summary of the Invention

[0003] In order to solve the problems raised in the above background art, the present invention provides a device for melting and granulating waste plastics during recycling.

[0004] The technical solution is as follows: A device for melting and granulating waste plastics during recycling includes a crushing frame. Two inclined frames are connected to the bottom of the crushing frame. The bottom ends of the inclined frames are both connected to vertical frames. The bottom ends of the vertical frames are both connected to melting frames. The melting frames have a heating chamber and a melting chamber. Pushing cylinders that slide are arranged in the melting chambers. Pushing columns that slide are arranged on the upper parts of the inclined frames. The pushing columns have states of extending into and leaving the vertical frames. A rotating baffle is rotatably connected at the connection between the crushing frame and the inclined frame. The rotating baffle guides the materials to one of the inclined frames. Covers are arranged at the ends of the melting frames.

[0005] As a further preferred solution, the device for melting and granulating waste plastics during recycling further includes a driving mechanism for driving the movement of the pushing cylinders. The driving mechanism includes a mounting frame. The mounting frame is commonly connected between the two melting frames. The left ends of the pushing cylinders are both connected to translation plates that slide on the mounting frame. Rotating shafts I are rotatably connected to both ends of the mounting frame. Chain wheels I are connected to both ends of the rotating shafts I. Chains I are wound between the upper two chain wheels I and the lower two chain wheels I. The front translation plate is connected between the front half sections of the two chains I, and the rear translation plate is connected between the rear half sections of the two chains I. A guide rail is connected to the mounting frame. An electric slider that slides is mounted on the guide rail. The electric slider is connected to one of the translation plates.

[0006] As a further preferred solution, the bottom surfaces of the pushing columns are both arc-shaped. After the pushing columns extend into the vertical frames, the arc surfaces are attached to the surfaces of the pushing cylinders.

[0007] As a further preferred solution, the waste plastic recycling granulation melting treatment device further includes a transmission mechanism for lifting and lowering the pushing column. The transmission mechanism includes bumps. Bumps are rotatably connected to both sides of the pushing column. Rotating shafts II are rotatably connected to both sides of the crushing frame. Synchronous rods with long holes at both ends are connected to the rotating shafts II. The bumps are respectively located in the adjacent long holes. Chain wheels II are connected to both ends of the rotating baffle and the two rotating shafts II. Chains II are wound between the two chain wheels II on the left side and between the two chain wheels II on the right side.

[0008] As a further preferred solution, the waste plastic recycling granulation melting treatment device further includes a cover opening and closing mechanism. The cover opening and closing mechanism includes a right-angle block, a rotating block, a connecting block, and a chain plate. Rotating blocks are rotatably connected to the top of the melting frame. The rotating blocks each have a protruding portion. Right-angle blocks that rotate coaxially are connected to the rotating blocks. Two covers are respectively connected to the two right-angle blocks. Connecting blocks are connected to the mutually remote sides of the two pushing columns. A chain plate for pushing the protruding portion is connected to each connecting block.

[0009] As a further preferred solution, the cover opening and closing mechanism further includes a limiting strip and a limiting block. Limiting strips and two limiting blocks are connected to the top of the melting frame. The two connecting blocks slide on the two limiting strips respectively.

[0010] As a further preferred solution, the limiting strip is divided into a left section and a right section. The upper sections of the two chain plates are respectively located between the left section and the right section. A channel for the free end of the chain plate to pass through is formed between the limiting block and the top surface of the melting frame.

[0011] As a further preferred solution, the cover opening and closing mechanism further includes a sliding block. Sliding blocks are slidably provided on the two limiting blocks on the right side. A return spring is connected between the sliding block and the limiting block. The bottom of the sliding block has an inclined surface. A connecting rod is connected to each sliding block. A plug rod is connected to each connecting rod. Grooves for the plug rod to insert into are formed on the surface of the rotating block.

[0012] The present invention has the following advantages: 1. The crushing frame crushes the materials, and the materials are guided by the rotating baffle. The materials enter one of the melting cavities. When the materials are melted, the pushing column completely pushes the materials in the vertical frame into the melting cavity. The pushing cylinder automatically pushes the materials in the melting cavity out, effectively avoiding material residue. Moreover, the two melting cavities melt the materials alternately, and the melting work does not interrupt, with strong continuity, improving the recycling and treatment efficiency of waste plastics.

[0013] 2. The cover opening and closing mechanism can automatically open and close the cover according to the lifting and lowering of the pushing column, without manual intervention, improving the operation accuracy and safety, and further improving the treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 This is the front view of the present invention, in which the vertical frame and the melting frame are sectioned.

[0016] Figure 3 This is the right view of the present invention.

[0017] Figure 4 This is a schematic partial sectional structure view of the crushing frame, the inclined frame, the vertical frame, the melting frame, the pushing cylinder and the rotating baffle of the present invention.

[0018] Figure 5 This is the top view of the pushing cylinder, the translation plate, the first rotating shaft, the first chain and the electric slider of the present invention.

[0019] Figure 6 This is a schematic structure view of the pushing column, the transmission mechanism, the rotating baffle, the cover plate and the cover plate opening and closing mechanism of the present invention.

[0020] Figure 7 This is the front view of the cover plate and the cover plate opening and closing mechanism of the present invention.

[0021] Figure 8 This is a schematic state view when the chain plate pushes the protruding part of the present invention, in which the rotating block and the limiting block are sectioned.

[0022] Figure 9 For the present invention Figure 8 This is a schematic state view after the rotation of the rotating block in the above.

[0023] Wherein: 1 - crushing frame, 2 - inclined frame, 3 - vertical frame, 4 - melting frame, 40 - heating cavity, 5 - pushing cylinder, 50 - mounting bracket, 51 - translation plate, 52 - first rotating shaft, 53 - first chain, 54 - electric slider, 55 - guide rail, 6 - pushing column, 60 - arc surface, 61 - convex block, 62 - second rotating shaft, 63 - synchronizing rod, 64 - second chain, 7 - rotating baffle, 70 - rotating rod part, 71 - reduction motor, 8 - cover plate, 81 - right-angle block, 82 - rotating block, 820 - groove, 821 - protruding part, 822 - sliding block, 823 - inclined surface, 824 - connecting rod, 825 - inserting rod, 83 - connecting block, 84 - chain plate, 841 - limiting strip, 842 - limiting block. Specific Embodiments

[0024] The following will further illustrate the present invention in conjunction with specific embodiments.

[0025] Embodiment: A waste plastic recycling and granulation melting treatment device, refer to Figures 1 - 5, including a crushing frame 1, an inclined frame 2, a vertical frame 3, a melting frame 4, a feeding cylinder 5, a feeding column 6, a rotating baffle 7, a reduction motor 71 and a cover plate 8. A crushing roller is installed on the upper side inside the crushing frame 1, which is not shown in the figure. The structure and principle of the crushing roller are prior arts. The bottom of the crushing frame 1 is connected to two symmetric inclined frames 2. The bottom ends of the inclined frames 2 are both connected to vertical frames 3. The bottom ends of the vertical frames 3 are both connected to melting frames 4. The melting frame 4 includes an outer wall and a cylindrical inner wall. There is a heating chamber 40 between the outer wall and the inner wall. The principle of heating waste plastics in the heating chamber 40 is prior art. Heating tubes are installed in the heating chamber 40. The inside of the inner wall of the melting frame 4 is a melting chamber. Feeding cylinders 5 that slide left and right are provided in the melting chambers of the melting frames 4. Square holes are opened in the upper parts of the inclined frames 2. Feeding columns 6 that slide up and down are provided at the square holes of the inclined frames 2. The feeding columns 6 have states of extending into and leaving the vertical frames 3. The bottom surfaces of the feeding columns 6 are all arc surfaces 60. When the feeding columns 6 extend into the vertical frames 3, the arc surfaces 60 are attached to the surfaces of the feeding cylinders 5. A rotating baffle 7 is rotatably connected at the connection between the crushing frame 1 and the inclined frame 2. The rotating baffle 7 includes a rotating rod part 70. The rotating baffle 7 rotates around the rotating rod part 70. A reduction motor 71 is bolted to the right side of the crushing frame 1. The output shaft of the reduction motor 71 is connected to the rotating rod part 70. The rotating baffle 7 guides the material to one of the inclined frames 2. Cover plates 8 are provided at the right ends of the melting frames 4. The cover plates 8 have states of being opened and closed.

[0026] Reference Figure 1 , Figure 2 and Figure 5 , the waste plastic recycling and pelletizing melting treatment device further includes a driving mechanism for driving the feeding cylinder 5 to move. The driving mechanism includes a mounting frame 50, a translation plate 51, a first rotating shaft 52, a first chain 53, an electric slider 54 and a guide rail 55. A mounting frame 50 is fixedly connected between the left ends of the two melting frames 4. Translation plates 51 are welded to the left ends of the feeding cylinders 5. The translation plates 51 all slide on the mounting frame 50. The first rotating shafts 52 are rotatably connected to the left and right ends of the mounting frame 50. Chain wheels are connected to the upper and lower ends of the first rotating shafts 52. The first chains 53 are wound between the upper two chain wheels and the lower two chain wheels. The front translation plate 51 is connected between the right parts of the front half sections of the two first chains 53. The rear translation plate 51 is connected between the left parts of the rear half sections of the two first chains 53. A guide rail 55 is fixedly connected to the top of the mounting frame 50. An electric slider 54 that slides left and right is installed on the guide rail 55. The electric slider 54 is connected to the rear translation plate 51.

[0027] Reference Figure 1 , Figure 3 , Figure 4 and Figure 6, the waste plastic recycling and pelletizing melting treatment device further includes a transmission mechanism for lifting the pushing column 6. The transmission mechanism includes a convex block 61, a second rotating shaft 62, a synchronous rod 63, and a second chain 64. Convex blocks 61 are rotatably connected to the upper parts on the left and right sides of the pushing column 6 respectively. Second rotating shafts 62 are rotatably connected to the middle parts on the left and right sides of the crushing frame 1 respectively. Synchronous rods 63 are fixedly connected to the second rotating shafts 62. Long holes are formed at both ends of the synchronous rod 63, and the convex blocks 61 are respectively located in the adjacent long holes. Sprockets are connected to both ends of the rotating rod part 70 and the two second rotating shafts 62. Second chains 64 are wound between the two sprockets on the left side and between the two sprockets on the right side.

[0028] Reference Figure 1 , Figure 3 , Figure 6 , Figure 7 , Figure 8 And Figure 9 , the waste plastic recycling and pelletizing melting treatment device further includes a cover opening and closing mechanism. The cover opening and closing mechanism includes a right-angle block 81, a rotating block 82, a connecting block 83, and a chain plate 84. Rotating blocks 82 are rotatably connected to the top right ends of the melting frame 4. Protruding parts 821 are provided on the outer sides of the rotating blocks 82. Right-angle blocks 81 that rotate coaxially are connected to the rotating blocks 82. Two covers 8 are fixedly connected to the right parts of the two right-angle blocks 81 respectively. Connecting blocks 83 are fixedly connected to the upper right parts on the sides where the two pushing columns 6 are away from each other. A chain plate 84 for pushing the protruding part 821 is connected to each connecting block 83. The bottom end of the chain plate 84 is a free end. The structure of the chain plate 84 is the prior art, specifically as Figure 6 shown. The chain plate 84 is composed of a row of chain links, and adjacent chain links are hinged by a pin shaft. When the pushing column 6 and the connecting block 83 descend, the bottom end of the chain plate 84 will push the protruding part 821, so that the rotating block 82, the right-angle block 81, and the cover 8 on the same side rotate counterclockwise together, and the cover 8 opens. When the pushing column 6 and the connecting block 83 ascend, the chain plate 84 separates from the protruding part 821, so that the rotating block 82, the right-angle block 81, and the cover 8 on the same side rotate clockwise together, and the cover 8 closes.

[0029] Reference Figure 1 , Figure 6 , Figure 7 , Figure 8 And Figure 9 , the cover opening and closing mechanism further includes a limiting strip 841 and a limiting block 842. Limiting strips 841 are bolted to the middle of the top of the melting frame 4. The two connecting blocks 83 slide on the two limiting strips 841 respectively. Two limiting blocks 842 are fixedly connected to the top of the melting frame 4. The limiting strip 841 is divided into a spaced left section and right section. The upper sections of the two chain plates 84 are respectively located between the left section and the right section. A channel for the free end of the chain plate 84 to pass through is formed between the upper part of the limiting block 842 and the top surface of the melting frame 4. Under the limiting action of the limiting strip 841 and the limiting block 842, the chain plate 84 is in an L shape.

[0030] Reference Figures 6 - 9 The cover opening and closing mechanism further includes sliding blocks 822, connecting rods 824, and inserting rods 825. Sliding blocks 822 that slide up and down are provided on the two limiting blocks 842 on the right side. A return spring is fixedly connected between the sliding blocks 822 and the limiting blocks 842. The bottoms of the sliding blocks 822 each have an inclined surface 823. Connecting rods 824 are welded to the tops of the sliding blocks 822. Inserting rods 825 are fixedly connected to the right ends of the connecting rods 824. Grooves 820 for the inserting rods 825 to insert are formed on the surfaces of the rotating blocks 822.

[0031] Initially, the front pushing column 6 is in the descending state, and the rear pushing column 6 is in the ascending state; the free end of the front chain plate 84 abuts against the lower sides of the front sliding block 822 and the front rotating block 82, and the front return spring is in the stretched state, so that the front cover plate 8 is in the open state. The free end of the rear chain plate 84 is separated from the rear sliding block 822, the free end of the rear chain plate 84 is separated from the rear rotating block 82, and the rear inserting rod 825 is inserted into the rear groove 820, keeping the rear cover plate 8 in the closed state.

[0032] First, put the waste plastic materials into the crushing frame 1. The crushing frame 1 crushes the materials through the crushing rollers. Under the guiding action of the rotating baffle 7, the crushed materials fall into the rear inclined frame 2. The materials fall into the melting cavity of the rear melting frame 4 through the rear vertical frame 3. Control the heating tube, and melt the materials in the melting cavity through the heating cavity 40 of the rear melting frame 4.

[0033] When the materials in the rear melting frame 4 are added completely, control the reduction motor 71 to drive the rotating baffle 7 to rotate clockwise by 120 degrees around the rotating rod part 70. The rotating baffle 7 becomes the state of blocking above the rear inclined frame 2. The rotating rod part 70 drives the two lower sprockets two to rotate clockwise together. Under the driving action of the chain two 64, the two upper sprockets two, the rotating shaft two 62, and the synchronizing rod 63 rotate synchronously clockwise. Since the convex blocks 61 are located in the long holes, the rotating synchronizing rod 63 can make the front convex block 61 move upward and the rear convex block 61 move downward, driving the front pushing column 6 to move upward and the rear pushing column 6 to move downward.

[0034] At this time, under the guiding action of the rotating baffle 7, the subsequent added materials will fall into the front inclined frame 2. The materials fall into the melting cavity of the front melting frame 4 through the front vertical frame 3 for melting. At the same time, the rear pushing column 6 that moves downward extends into the rear vertical frame 3, so as to push all the remaining small amount of materials in the rear vertical frame 3 into the rear melting cavity completely, making the materials melt completely.

[0035] The pushing column 6 moving downward on the rear side will also drive the connecting block 83 on the rear side to move downward, and the pushing column 6 moving upward on the front side will drive the connecting block 83 on the front side to move upward. Since the upper end of the chain plate 84 is located between the left and right sections of the limit bar 841, the free end of the chain plate 84 passes through the channel of the left limit block 842. Under the limiting action of the limit bar 841 and the limit block 842, the front connecting block 83 pulls the front chain plate 84, and the free end of the front chain plate 84 first leaves the bottom of the front rotating block 82, and the front cover plate 8 and the front right-angle block 81 rotate clockwise under the action of gravity. The front cover plate 8 is closed, and the free end of the front chain plate 84 leaves the bottom of the front sliding block 822 again, and the front return spring restores, causing the front sliding block 822, the front connecting rod 824 and the front insertion rod 825 to move downward. The front sliding block 822 extends into the channel, and the front insertion rod 825 is inserted into the groove 820 of the front rotating block 82, thereby limiting the position of the front right-angle block 81 and the front cover plate 8, so that the front cover plate 8 remains in a closed state so that the front melting frame 4 can melt the material; at the same time, the free end of the rear chain plate 84 will pass through the channel of the rear right limit block 842, and the rear chain plate 84 will squeeze the rear sliding block 822 upward through the inclined surface 823, driving the rear connecting rod 824 and the rear insertion rod 825 to move upward, and the rear insertion rod 825 leaves the rear groove 820, and the free end of the rear chain plate 84 pushes the protrusion 821 of the rear rotating block 82, so that the rear rotating block 82, the rear right-angle block 81 and the rear cover plate 8 rotate counterclockwise together, and the rear cover plate 8 becomes open.

[0036] The electric slider 54 is controlled to translate to the right, driving the rear translation plate 51 and the rear push barrel 5 to move to the right. The rear translation plate 51 drives the chain 1 53 to rotate clockwise, so that the front translation plate 51 and the front push barrel 5 move to the left synchronously. The rear push barrel 5 automatically pushes the material in the rear melting chamber out, and then the melted material is produced into polyvinyl chloride cable material particles through subsequent processes.

[0037] In this way, when the material is melted, the pushing column 6 can push the material in the vertical frame 3 completely into the melting chamber, and the pushing cylinder 5 automatically pushes the material in the melting chamber, effectively avoiding material residue, and the two melting chambers melt the material alternately, the melting work is uninterrupted, the continuity is strong, and the recycling efficiency of waste plastics is improved.

[0038] While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

Claims

1. A waste plastic recycling granulation melting treatment device, including a crushing frame (1), characterized in that: The bottom of the crushing frame (1) is connected to two inclined frames (2), the bottom ends of the inclined frames (2) are both connected to vertical frames (3), the bottom ends of the vertical frames (3) are both connected to melting frames (4), the melting frames (4) have a heating cavity (40) and a melting cavity, a sliding material pushing cylinder (5) is arranged in each melting cavity, a sliding material pushing column (6) is arranged on the upper part of each inclined frame (2), the material pushing column (6) has a state of extending into and leaving the vertical frame (3), a rotating baffle (7) is rotatably connected at the connection between the crushing frame (1) and the inclined frame (2), the rotating baffle (7) guides the material to one of the inclined frames (2), and covers (8) are arranged at the ends of the melting frames (4).

2. The waste plastic recycling granulation melting treatment device according to claim 1, characterized in that: The waste plastic recycling and granulation melting treatment device further includes a driving mechanism for driving the movement of the material pushing cylinder (5). The driving mechanism includes a mounting frame (50). A mounting frame (50) is commonly connected between the two melting frames (4). The left ends of the material pushing cylinders (5) are both connected to translation plates (51) sliding on the mounting frame (50). Rotating shafts one (52) are rotatably connected to both ends of the mounting frame (50). Chain wheels one are connected to both ends of the rotating shafts one (52). A chain one (53) is wound between the two upper chain wheels one and between the two lower chain wheels one. The front translation plate (51) is connected between the front half sections of the two chains one (53), and the rear translation plate (51) is connected between the rear half sections of the two chains one (53). A guide rail (55) is connected to the mounting frame (50), and a sliding electric slider (54) is mounted on the guide rail (55). The electric slider (54) is connected to one of the translation plates (51).

3. A waste plastic recycling granulation melting treatment device according to claim 1, characterized in that: The bottom surfaces of the material pushing columns (6) are both arc surfaces (60). After the material pushing columns (6) extend into the vertical frames (3), the arc surfaces (60) are attached to the surfaces of the material pushing cylinders (5).

4. The waste plastic recycling granulation melting treatment device according to claim 1, characterized in that: The waste plastic recycling and granulation melting treatment device further includes a transmission mechanism for lifting the material pushing columns (6). The transmission mechanism includes bumps (61). Bumps (61) are rotatably connected to both sides of the material pushing columns (6). Rotating shafts two (62) are rotatably connected to both sides of the crushing frame (1). Synchronous rods (63) with long holes opened at both ends are connected to the rotating shafts two (62). The bumps (61) are respectively located in the adjacent long holes. Chain wheels two are connected to both ends of the rotating baffle (7) and the two rotating shafts two (62). A chain two (64) is wound between the two left chain wheels two and between the two right chain wheels two.

5. The waste plastic recycling and pelletizing melting treatment device according to claim 1, characterized in that: The waste plastic recycling granulation melting treatment device further includes a cover opening and closing mechanism. The cover opening and closing mechanism includes a right-angle block (81), a rotating block (82), a connecting block (83) and a chain plate (84). Rotating blocks (82) are rotatably connected to the top of the melting frame (4). The rotating blocks (82) each have a protruding portion (821). Right-angle blocks (81) that rotate coaxially are connected to the rotating blocks (82). Two covers (8) are respectively connected to the two right-angle blocks (81). Connecting blocks (83) are connected to the mutually remote sides of the two pushing columns (6). A chain plate (84) for pushing the protruding portion (821) is connected to each connecting block (83).

6. The waste plastic recycling granulation melting treatment device according to claim 5, characterized in that: The cover opening and closing mechanism further includes a limiting strip (841) and a limiting block (842). Limiting strips (841) and two limiting blocks (842) are respectively connected to the top of the melting frame (4). The two connecting blocks (83) slide on the two limiting strips (841).

7. A waste plastic recycling and pelletizing melting treatment device according to claim 6, characterized in that: The limiting strip (841) is divided into a left section and a right section. The upper sections of the two chain plates (84) are respectively located between the left section and the right section. A channel for the free end of the chain plate (84) to pass through is formed between the limiting block (842) and the top surface of the melting frame (4).

8. The waste plastic recycling and granulation melting treatment device according to claim 7, characterized in that: The cover opening and closing mechanism further includes a sliding block (822). Sliding blocks (822) are provided on the two limiting blocks (842) on the right side for sliding. A return spring is connected between the sliding block (822) and the limiting block (842). The bottom of the sliding block (822) has an inclined surface (823). A connecting rod (824) is connected to each sliding block (822). A plug rod (825) is connected to each connecting rod (824). Grooves (820) for the plug rod (825) to insert into are formed on the surface of the rotating block (82).

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