Plastic crusher capable of crushing thoroughly

Abstract

The utility model discloses a plastic crusher capable of crushing thoroughly, which relates to the technical field of crushers and comprises a case, two groups of crushing rollers are rotatably mounted in the case, a fixed block is arranged below the crushing rollers, a mounting cavity is arranged at one end of the case far away from the fixed block, and a movable block is mounted in the mounting cavity in a sliding manner. According to the design scheme, through the design that the first material blocking plate is elastically installed on the side wall of the movable block, the serrated knife is movably installed on the side wall of the fixed block, the second material blocking plate is fixedly installed at the bottom of the serrated knife, cut-up materials fall onto the second material blocking plate, and after the movable block works for a period of time, the movable block is fixed to the limiting position of the left end; at the moment, the push rod of the hydraulic rod retracts, the serrated knife is far away from the stop block, so that a discharging space is reserved, and materials at the tops of the movable block and the fixed block are blocked by the first baffle plate, so that the materials which are not completely crushed are prevented from falling into a blanking port from a gap between the serrated knife and the cutter, and the materials can be completely crushed.

Description

Technical Field

[0001] The utility model relates to the technical field of crushers, in particular to a plastic crusher capable of completely crushing plastics. Background Art

[0002] Plastic crusher, also known as plastic pulverizer, is mainly used to crush various plastic plastics and rubber, such as plastic profiles, tubes, rods, silk threads, films and waste rubber products. The plastic crusher drives the cutter disc to rotate at high speed through an electric motor. During the high-speed rotation of the cutter disc, it forms a tendency of relative motion with the fixed knife. The gap between the moving knife and the fixed knife is used to form a plastic crushing and shearing incision to crush large pieces of plastic. Most of the existing plastic crushers cannot grab the plastic and roll it into the gap between the blades to crush it. Some plastics are easily stuck above the blades when crushing, so that the plastic stuck above cannot be crushed by the crusher, resulting in incomplete crushing of some plastics.

[0003] CN 208601773 U discloses a plastic crusher with complete crushing, comprising a chassis, a feed hopper and a bracket, wherein the bracket is fixedly connected to the bottom of the chassis, the feed hopper is fixedly embedded in the top of the chassis, and baffles are fixedly connected to both sides of the inner wall of the chassis, and the baffles are fixedly connected to the bottom of the feed hopper, etc. The above-mentioned plastic crusher is provided with a cutting wheel, a toothed knife, a cutter, a cam and a spring. When crushing, the plastic is put into the chassis from the feed hopper, and the blade of the cutting wheel is hook-shaped to grab the plastic and roll it between two cutting wheels. The two cutting wheels cut the plastic and roll the cut debris between the toothed knife and the cutter. The cam squeezes the movable rod to drive the movable rod to move back and forth left and right, and the movable rod drives the movable block to move left and right. At this time, the toothed knife and the cutter cut the plastic debris to prevent the uncut plastic from falling into the inside of the feed chute, thereby achieving a complete cutting effect, and solving the problem that some plastics are easily stuck above the blade of the plastic crusher during crushing, so that the plastic stuck above cannot be crushed by the crusher, resulting in incomplete crushing of some plastics.

[0004] However, when the above-mentioned plastic crusher further crushes the plastic through the cutter and the toothed knife, when the cutter and the toothed knife are separated, some incompletely crushed plastic will still fall into the feed chute from the gap between the cutter and the toothed knife, which causes the crushing effect to fail to achieve the expected result, thereby affecting the later use of the plastic. Utility Model Content

[0005] In order to overcome the above-mentioned defects in the prior art, the utility model provides a plastic crusher which can crush the plastic thoroughly.

[0006] The technical solution adopted by the utility model to solve the technical problem is: a plastic crusher with thorough crushing, comprising a chassis, two groups of crushing rollers are rotatably installed inside the chassis, a fixed block is provided below the crushing rollers, the fixed block is fixedly installed at the bottom of the chassis, an installation cavity is provided at one end of the chassis away from the fixed block, a movable block is slidably installed in the installation cavity, a first material baffle plate is elastically installed on the side wall of the movable block close to the fixed block, a toothed knife is movably installed on the side wall of the fixed block close to the movable block, a second material baffle plate is fixedly installed at the bottom of the toothed knife, and a baffle is fixedly installed on the bottom wall of the chassis.

[0007] Furthermore, a mounting groove is provided on a side wall of the fixed block away from the movable block, a hydraulic rod is fixedly installed in the mounting groove, and a push rod of the hydraulic rod is fixedly connected to the toothed cutter.

[0008] Furthermore, a material guiding surface is provided at the top of one end of the second material baffle plate close to the baffle.

[0009] Furthermore, a cutter matching the toothed knife is fixedly installed on the side wall of the movable block close to the fixed block, a slide groove is opened above the cutter, the first material baffle plate is slidably installed in the slide groove, a plurality of groups of springs are matched and installed between the first material baffle plate and the slide groove, and a limit platform is provided at the end of the slide groove.

[0010] Furthermore, a crank rocker is rotatably installed on the front and rear inner walls of the installation cavity, a servo motor is fixedly installed on the front outer wall of the installation cavity, a power output shaft of the servo motor is connected to the rotating shaft of the crank rocker, a transmission rod is hinged on the crank rocker, and the other end of the transmission rod is hingedly installed on the movable block.

[0011] Furthermore, a feed hopper is fixedly mounted on the top of the chassis, a feed opening is provided at the bottom of the chassis, the position of the feed opening corresponds to the position of the toothed cutter, and the stopper is fixedly mounted at the top right end of the feed opening.

[0012] The beneficial effect of the utility model is that the design scheme of the utility model is designed that the first material baffle plate is elastically installed on the side wall of the movable block, a toothed knife is movably installed on the side wall of the fixed block, and a second material baffle plate is fixedly installed on the bottom of the toothed knife. The shredded material falls onto the second material baffle plate. After the movable block has worked for a period of time, the movable block is fixed at the extreme position at the left end. The first material baffle plate abuts against the side wall of the fixed block under the action of the spring. At this time, the push rod of the hydraulic rod retracts, so that the toothed knife moves away from the baffle, thereby leaving space for discharging. The material between the movable block and the fixed block falls into the material dropout port and is discharged outwardly. The material on the top of the movable block and the fixed block is blocked by the first material baffle plate to prevent incompletely crushed material from falling into the material dropout port from the gap between the toothed knife and the cutter, thereby ensuring that the material can be completely crushed. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the utility model in the main viewing direction;

[0017] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure in the AA direction;

[0018] Figure 5 for Figure 3 A partial enlarged view of area B in the middle.

[0019] In the figure: 1. chassis, 2. installation cavity, 3. movable block, 31. slide groove, 32. limit table, 4. first material baffle plate, 5. spring, 6. cutter, 7. fixed block, 71. installation groove, 8. hydraulic rod, 9. toothed knife, 10. second material baffle plate, 101. material guide surface, 11. crank rocker, 12. servo motor, 13. transmission rod, 14. feed hopper, 15. drop port, 16. crushing roller, 17. baffle. DETAILED DESCRIPTION

[0020] In order to more clearly illustrate the technical solution of the utility model, the utility model is further described below in conjunction with the accompanying drawings. Obviously, the accompanying drawings described below are only one embodiment of the utility model. For ordinary technicians in this field, without paying any creative work, other embodiments can be obtained based on this drawing and embodiment, which all belong to the protection scope of the utility model.

[0021] according to Figure 1-5 As shown, a plastic crusher with thorough crushing comprises a chassis 1, two sets of crushing rollers 16 are rotatably installed inside the chassis 1, a fixed block 7 is provided below the crushing rollers 16, the fixed block 7 is fixedly installed at the bottom of the chassis 1, an installation cavity 2 is provided at one end of the chassis 1 away from the fixed block 7, a movable block 3 is slidably installed in the installation cavity 2, a first material baffle plate 4 is elastically installed on the side wall of the movable block 3 close to the fixed block 7, a toothed cutter 9 is movably installed on the side wall of the fixed block 7 close to the movable block 3, a second material baffle plate 10 is welded to the bottom of the toothed cutter 9, and a baffle 17 is fixedly installed on the bottom wall of the chassis 1.

[0022] In this embodiment, a mounting groove 71 is provided on the side wall of the fixed block 7 away from the movable block 3, and a hydraulic rod 8 is fixedly installed in the mounting groove 71. The push rod of the hydraulic rod 8 is fixedly connected to the toothed cutter 9. When discharging, the push rod of the hydraulic rod 8 retracts to drive the toothed cutter 9 toward the fixed block 7, thereby leaving space for discharging.

[0023] In this embodiment, a material guiding surface 101 is provided at the top of one end of the second material baffle plate 10 close to the stop block 17, and the end of the material guiding surface 101 close to the stop block 17 is inclined downward. When discharging materials, the materials fall on the second material baffle plate 10 and slide downward through the material guiding surface 101 to prevent the materials from remaining on the second material baffle plate 10.

[0024] In this embodiment, a cutter 6 that cooperates with the toothed knife 9 is welded on the side wall of the movable block 3 close to the fixed block 7, a slide groove 31 is provided above the cutter 6, and the first baffle plate 4 is slidably installed in the slide groove 31. A plurality of groups of springs 5 ​​are cooperated and installed between the first baffle plate 4 and the slide groove 31. A limit platform 32 is provided at the end of the slide groove 31. By making the movable block 3 approach the fixed block 7, the plastic is shredded under the action of the cutter 6 and the toothed knife 9. When the distance between the movable block 3 and the fixed block 7 is the minimum, the first baffle plate 4 abuts against the side wall of the fixed block 7, and the first baffle plate 4 blocks the material falling from above.

[0025] In this embodiment, a crank rocker 11 is rotatably installed on the front and rear inner walls of the installation cavity 2, and a servo motor 12 is fixedly installed on the front outer wall of the installation cavity 2. The power output shaft of the servo motor 12 is connected to the rotating shaft of the crank rocker 11 through a coupling. A transmission rod 13 is hinged on the crank rocker 11, and the other end of the transmission rod 13 is hinged on the movable block 3. The crank rocker 11 is driven to rotate by the servo motor 12, and the transmission rod 13 is driven to move by the crank rocker 11, so that the movable block 3 moves back and forth left and right in the installation groove 71.

[0026] In this embodiment, a feed hopper 14 is fixedly installed on the top of the chassis 1, and a drop port 15 is opened at the bottom of the chassis 1. The position of the drop port 15 corresponds to the position of the toothed cutter 9, the center of the drop port 15 is aligned with the toothed cutter 9, and a stopper 17 is fixedly installed at the top right end of the drop port 15. When discharging, the hydraulic rod 8 drives the toothed cutter 9 away from the movable block 3, and at the same time the second baffle plate 10 is separated from the stopper 17. At this time, the material can fall into the drop port 15 and be discharged outward.

[0027] When the utility model is in use, the material is put into the chassis 1 from the feed hopper 14, and after being initially crushed by the crushing roller 16, it falls to the top of the movable block 3 and the fixed block 7 below. At this time, the push rod of the hydraulic rod 8 is in an extended state, and the servo motor 12 is started. The movable block 3 moves back and forth in the installation cavity 2 with the cooperation of the crank rocker 11 and the transmission rod 13, so that the material slides between the movable block 3 and the fixed block 7, and is chopped by the cutter 6 and the toothed cutter 9. The chopped material falls on the second baffle plate 10. After the movable block 3 works for a period of time, the servo motor 12 is turned on. The servo motor 12 stops, so that the movable block 3 is in the extreme position at the left end. The first baffle plate 4 abuts against the side wall of the fixed block 7 under the action of the spring 5. At this time, the push rod of the hydraulic rod 8 retracts, so that the toothed knife 9 is away from the baffle 17, thereby leaving a discharge space. The material between the movable block 3 and the fixed block 7 falls into the drop opening 15 and is discharged outward. The material on the top of the movable block 3 and the fixed block 7 is blocked by the first baffle plate 4 to prevent the incompletely crushed material from falling into the drop opening 15 from the gap between the toothed knife 9 and the cutter 6, thereby ensuring that the material can be completely crushed.

[0028] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A plastic crusher for complete crushing, comprising a chassis (1), wherein two sets of crushing rollers (16) are rotatably mounted inside the chassis (1), characterized in that: A fixed block (7) is provided below the crushing roller (16), and the fixed block (7) is fixedly mounted on the bottom of the chassis (1). An installation cavity (2) is provided at one end of the chassis (1) away from the fixed block (7), and a movable block (3) is slidably mounted in the installation cavity (2). A first material baffle plate (4) is elastically mounted on a side wall of the movable block (3) close to the fixed block (7), a toothed knife (9) is movably mounted on a side wall of the fixed block (7) close to the movable block (3), and a second material baffle plate (10) is fixedly mounted on the bottom of the toothed knife (9), and a baffle block (17) is fixedly mounted on the bottom wall of the chassis (1).

2. A plastic crusher for complete crushing according to claim 1, characterized in that: A mounting groove (71) is provided on the side wall of the fixed block (7) away from the movable block (3), a hydraulic rod (8) is fixedly installed in the mounting groove (71), and a push rod of the hydraulic rod (8) is fixedly connected to the toothed cutter (9).

3. A plastic crusher for complete crushing according to claim 1, characterized in that: A material guiding surface (101) is provided on the top of one end of the second material baffle plate (10) close to the baffle (17).

4. A plastic crusher for complete crushing according to claim 2, characterized in that: A cutter (6) matched with the toothed cutter (9) is fixedly mounted on the side wall of the movable block (3) close to the fixed block (7); a slide groove (31) is provided above the cutter (6); the first material baffle plate (4) is slidably mounted in the slide groove (31); a plurality of groups of springs (5) are matched and mounted between the first material baffle plate (4) and the slide groove (31); and a limit platform (32) is provided at the end of the slide groove (31).

5. A plastic crusher for complete crushing according to claim 1, characterized in that: A crank rocker (11) is rotatably mounted on the front and rear inner walls of the installation cavity (2), a servo motor (12) is fixedly mounted on the front outer wall of the installation cavity (2), a power output shaft of the servo motor (12) is connected to the rotating shaft of the crank rocker (11), a transmission rod (13) is hingedly mounted on the crank rocker (11), and the other end of the transmission rod (13) is hingedly mounted on the movable block (3).

6. A plastic crusher for complete crushing according to any one of claims 1 to 5, characterized in that: A feed hopper (14) is fixedly mounted on the top of the chassis (1), a material drop opening (15) is provided at the bottom of the chassis (1), the position of the material drop opening (15) corresponds to the position of the toothed cutter (9), and the stopper (17) is fixedly mounted on the top right end of the material drop opening (15).

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