Low-noise plastic crusher

Abstract

The utility model relates to the technical field of plastic crushers, and discloses a low-noise plastic crusher which comprises a box body and a main shaft, a box body upper lug is fixedly connected to the upper portion of the box body, a sixth hexagonal head bolt and a movable cutter are arranged on the outer surface of a movable cutter pressing plate, and the movable cutter pressing plate is fixedly connected with the box body upper lug. A front fixed cutter and a rear fixed cutter are installed on the outer surface of the fixed cutter pressing plate on the front side and the outer surface of the fixed cutter pressing plate on the rear side respectively. The front fixed cutter and the rear fixed cutter are installed in the box body, the front fixed cutter is arranged at the rear and rotates by 30-35 degrees anticlockwise, the initial cutting point is lowered, the material crushing efficiency of the movable cutter is improved, the discharging passing rate of the screen is increased, and when the inner side space of the box body is welded and formed, the inner wall of the box body is pasted with a damping sound insulation board and filled with sound insulation and sound absorption cotton; residual materials in the box body are effectively reduced, continuous crack noise generated by the residual materials in the crushing waiting period is greatly reduced and eliminated, noise of the crushing chamber is also greatly reduced through the sound insulation design, and safe production is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastic crusher, specifically is a low noise plastic crusher. BACKGROUND

[0002] The plastic crusher is one of the auxiliary equipment commonly used in the processing and production of plastic products, and recycling of plastic product rejects and nozzle materials is the main measure to save production cost and reduce resource waste, so the use of plastic crusher is extremely wide, and there is plastic processing, and there is plastic crusher.

[0003] At present, most of the ordinary high / middle / low speed crushers, silent crushers and other plastic crushers used in plastic processing plants basically have a noise in the plastic crushing process. After starting and crushing, there is always a click sound produced by the small material residues in the crushing chamber during the period of waiting for feeding without feeding, which causes the operating personnel to have a feeling of disgust and affects the safety production, therefore, a low noise plastic crusher is proposed. UTILITY MODEL CONTENTS

[0004] In view of the defects of the prior art, the utility model provides a low noise plastic crusher to solve the problems mentioned in the background.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a low noise plastic crusher, including box and main shaft, the top of the box is fixedly connected with box top ear, the top outer surface of the box top ear is installed with hopper, both side end faces of the box are provided with bearing cover and second hexagonal head bolt, the bearing cover is installed on both side end faces of the box through the second hexagonal head bolt, the outer surface of the bearing cover is provided with a bearing with seat and first hexagonal head bolt, the bearing with seat is installed on the bearing cover through the first hexagonal head bolt, the outer surface of the bearing with seat is provided with main shaft cutter body part, flywheel and belt pulley in sequence, the main shaft cutter body part is installed in the inner hole of the bearing with seat;

[0006] The main shaft cutter body part is assembled by pressing the second flat key, two material baffle plates, cutter body and cutter body locking nut on the main shaft, the cutter body is connected with the main shaft through the cutter body locking nut, the cutter body is installed with moving cutter and moving cutter pressing plate, the outer surface of the moving cutter is provided with sixth hexagonal bolt and moving cutter pressing plate, the moving cutter pressing plate is installed on the outer surface of the moving cutter through the sixth hexagonal head bolt, the front and rear sides of the box are provided with fixed cutter pressing plate, the outer surfaces of the front fixed cutter and rear fixed cutter are provided with fifth hexagonal head bolt, the outer surface of the fifth hexagonal head bolt is threadedly connected with thickened hexagonal nut, the outer surfaces of the front fixed cutter and rear fixed cutter are respectively installed with fixed cutter pressing plate, and the front fixed cutter is installed on the fixed cutter plate of the box through the thickened hexagonal nut and hexagonal head bolt.

[0007] Further, the inside lower side of the box body is provided with a screen frame, the rear side of the screen frame is provided with a screen frame pin shaft, the inside of the screen frame is provided with a screen, the front side of the box body is provided with a box body square lug, the front side of the screen frame is provided with a screen frame square lug, the outer surface of the box body square lug is provided with a rotating pin shaft and a boom, the boom is installed on the outer surface of the box body square lug through the pin shaft, the outer surface of the screen frame square lug is threadedly connected with a star handle, and a gasket is arranged between the star handle and the screen frame square lug.

[0008] Further, the two ends of the main shaft cutter body part are provided with a pulley locking gasket and a third hexagonal head bolt, the flywheel and the belt pulley are fixedly pressed on the two ends of the main shaft cutter body part through the third hexagonal head bolt and the pulley locking gasket, and the first flat key is arranged between the flywheel, the belt pulley and the main shaft cutter body part.

[0009] Further, the inner wall arc plate of the box body is pasted with a damping sound insulation plate and filled with sound insulation cotton.

[0010] Further, the outer surface of the screen frame is provided with a screen frame handle.

[0011] Further, the front fixed cutter is arranged in a downward cutting inclined mode.

[0012] Further, the cutter body is provided with a seventh hexagonal head bolt for adjusting the moving cutter, and the front and rear sides of the box body are provided with fourth hexagonal head bolts for adjusting the front fixed cutter and the rear fixed cutter.

[0013] Compared with the prior art, the low-noise plastic crusher has the following beneficial effects:

[0014] 1. The low-noise plastic crusher is provided with a front fixed cutter and a rear fixed cutter installed in the box body, the front fixed cutter is arranged in a rear and counterclockwise rotating mode by 30-35°, the initial cutting point is lowered, the moving cutter material breaking efficiency is improved, the screen discharging passing rate is improved, the box body inner side space is pasted with a damping sound insulation plate and filled with sound insulation cotton when being welded and formed, the residual material in the box body is effectively reduced, the continuous click noise caused by residual material in the breaking waiting period is greatly reduced and eliminated, the sound insulation design also greatly reduces the noise of the crushing chamber, and the safety production is beneficial. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a structural schematic view of the utility model;

[0016] Fig. 2 It is an internal structural schematic view of the utility model.

[0017] In the figure: 1, the first hexagonal head bolt; 2, bearing with seat; 3, flywheel; 4, the second hexagonal head bolt; 5, bearing cover; 6, the upper ear of the box; 7, the material blocking plate; 8, the pulley; 9, the main shaft cutter body part; 10, the first flat key; 11, the third hexagonal head bolt; 12, the pulley locking washer; 13, the cutter locking nut; 14, the screen frame handle; 15, the screen frame pin; 16, the fourth hexagonal head bolt; 17, the thick hexagonal nut; 18, the fifth hexagonal head bolt; 19, the sixth hexagonal head bolt; 20, the moving cutter pressing plate; 21, the seventh hexagonal head bolt; 22, the moving cutter; 23, the box; 24, the damping sound insulation board; 25, the sound insulation cotton; 26, the rotating pin; 27, the suspender; 28, the washer; 29, the star handle; 30, the rear fixed cutter; 31, the screen frame; 32, the main shaft; 33, the cutter body; 34, the second flat key; 35, the screen; 36, the fixed cutter pressing plate; 37, the front fixed cutter. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0019] Embodiment 1:

[0020] Please refer to Figs. 1-2 The utility model provides a kind of technical solutions: a low-noise plastic crusher, including box 23 and main shaft 32, the upper ear of the box 23 is fixedly connected with box 23, the top outer surface of box upper ear 6 is installed with hopper, the both side end faces of box 23 are provided with bearing cover 5 and second hexagonal head bolt 4, bearing cover 5 is installed on the both side end faces of box 23 by second hexagonal head bolt 4, the outer surface of bearing cover 5 is provided with bearing with seat 2 and first hexagonal head bolt 1, bearing with seat 2 is installed on bearing cover 5 by first hexagonal head bolt 1, the outer surface of bearing with seat 2 is sequentially provided with main shaft cutter body part 9, flywheel 3 and pulley 8, main shaft cutter body part 9 is installed in the inner hole of bearing with seat 2;

[0021] The main shaft tool body component 9 is assembled by pressing the second flat key 34, two material blocking plates 7, the tool body 33 and the tool body locking nut 13 on the main shaft 32. The tool body 33 is connected with the main shaft 32 through the tool body locking nut 13. The tool body 33 is provided with the moving tool pressing plate 20. The outer surface of the moving tool pressing plate 20 is provided with the sixth hexagonal head bolt 19 and the moving tool 22. The moving tool 22 is installed on the outer surface of the moving tool pressing plate 20 through the sixth hexagonal head bolt 19. The box body 23 is provided with the fixed tool pressing plate 36 on the front and back sides. The outer surfaces of the front fixed tool pressing plate 36 and the rear fixed tool pressing plate 36 are provided with the fifth hexagonal head bolt 18. The outer surface of the fifth hexagonal head bolt 18 is threadedly connected with the thickened hexagonal nut 17. The outer surfaces of the front fixed tool pressing plate 36 and the rear fixed tool pressing plate 36 are respectively provided with the front fixed tool 37 and the rear fixed tool 30. The fixed tool pressing plate 36 is installed on the inner wall of the box body 23 through the thickened hexagonal nut 17 and the hexagonal head bolt. Specifically, the plastic products to be crushed are conveyed from the feeding hopper to the inside of the box body 23, and the material is crushed by driving the moving tool 22 through the driving device. The front fixed tool 37 is installed downwardly and obliquely, so that the crushing cutting point is lowered and moved downward, thereby improving the crushing efficiency.

[0022] In the embodiment, the sieve frame 31 is installed on the inside of the lower side of the box body 23. The sieve frame 31 is provided with the sieve frame pin shaft 15 on the rear side. The sieve frame 31 is provided with the sieve 35 in the inside. The box body square lug is installed on the front side of the box body 23. The sieve frame square lug is installed on the front side of the sieve frame 31. The outer surface of the box body square lug is provided with the rotating pin shaft 26 and the hanging rod 27. The hanging rod 27 is installed on the outer surface of the box body square lug through the pin shaft. The outer surface of the sieve frame square lug is threadedly connected with the star-shaped handle 29. The star-shaped handle 29 and the sieve frame square lug are provided with the gasket 28 therebetween. Specifically, the sieve frame 31 is pressed tightly by adjusting the star-shaped handle 29, the gasket 28 and the hanging rod 27 pressed tightly on the sieve frame square lug. The residual material after crushing is discharged through the sieve 35, so as to reduce the residual material in the box body 23, thereby realizing that the noise of the moving tool 22 during the crushing during the waiting feeding period is greatly reduced or even completely eliminated.

[0023] In the embodiment, the main shaft tool body component 9 is provided with the pulley locking gasket 12 and the third hexagonal head bolt 11 at both ends. The flywheel 3 and the belt pulley 8 are fixedly pressed on both ends of the main shaft tool body component 9 through the third hexagonal head bolt 11 and the pulley locking gasket 12. The flywheel 3 and the belt pulley 8 are provided with the first flat key 10 between the flywheel 3 and the belt pulley 8 and the main shaft tool body component 9.

[0024] In the embodiment, the damping sound insulation plate 24 is pasted in the inner wall arc plate of the box body 23 and filled with the sound insulation cotton 25. Specifically, the damping sound insulation plate 24 and the sound insulation cotton 25 in the inner wall of the box body 23 reduce the noise of the material impacting the box body 23 when the plastic is crushed, so as to simultaneously reduce the noise during the crushing.

[0025] In the embodiment, the outer surface of the screen frame 31 is provided with a screen frame handle 14, and the screen frame handle 14 is used to pull up the screen frame 31 when the screen frame 31 is opened or closed.

[0026] In the embodiment, the front fixed knife 37 is installed in a downward cutting inclined manner, and the downward cutting inclined installation lowers the breaking cutting point and reduces the residual material in the box 23.

[0027] In the embodiment, the seventh hexagonal head bolt 21 is installed on the knife body 33 and used to adjust the moving knife 22, and the fourth hexagonal head bolt 16 is installed on the front and rear sides of the box 23 and used to adjust the front fixed knife 37 and the rear fixed knife 30.

[0028] Working principle: in use, the plastic products to be broken are conveyed from the feeding hopper to the inside of the box 23, and the driving device drives the moving knife 22 to break the materials, the downward cutting inclined installation of the front fixed knife 37 lowers the breaking cutting point and reduces the residual material in the box 23, so that the noise of the moving knife 22 during the breaking process is greatly reduced or even completely eliminated, and the noise of the box 23 during the plastic breaking process is also reduced due to the damping sound insulation plate 24 and the sound insulation cotton 25 on the inner wall of the box 23.

[0029] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A low noise plastic shredder comprising a housing (23) and a main shaft (32), characterised in that: The upper side of the box (23) is fixedly connected with box upper ear (6), the top outer surface of the box upper ear (6) is installed with hopper, both sides of the box (23) end face are provided with bearing cover (5) and second hexagonal head bolt (4), the bearing cover (5) is installed in both sides of the box (23) end face by second hexagonal head bolt (4), the outer surface of the bearing cover (5) is provided with bearing (2) and first hexagonal head bolt (1), the bearing (2) is installed on the bearing cover (5) by first hexagonal head bolt (1), the outer surface of the bearing (2) is provided with main shaft cutter body component (9), flywheel (3) and pulley (8) in turn, the main shaft cutter body component (9) is installed in the inner hole of bearing (2); The main shaft cutter body component (9) is assembled by second flat key (34), two material blocking plates (7), cutter body (33) and cutter body locking nut (13) pressing on the main shaft (32), the cutter body (33) is connected with the main shaft (32) by cutter body locking nut (13), the cutter body (33) is installed with moving knife (22) moving knife pressing plate (20), the outer surface of the moving knife (22) is provided with sixth hexagonal head bolt (19) and moving knife pressing plate (20), the moving knife pressing plate (20) is installed on the outer surface of the moving knife (22) by sixth hexagonal head bolt (19), the front and rear sides of the box (23) are provided with fixed knife pressing plate (36), the outer surface of front fixed knife (37) and rear fixed knife (30) is provided with fifth hexagonal head bolt (18), the outer surface of the fifth hexagonal head bolt (18) is threadedly connected with thickened hexagonal nut (17), the outer surface of front side front fixed knife (37) and rear side rear fixed knife (30) is respectively installed with fixed knife pressing plate (36), the front fixed knife (37) is installed on the fixed knife plate of the box (23) by thickened hexagonal nut (17) and hexagonal head bolt.

2. A low noise plastic shredder as claimed in claim 1, wherein: The inside of the box (23) is installed with screen frame (31), the rear side of the screen frame (31) is installed with screen frame pin shaft (15), the inside of the screen frame (31) is provided with screen (35), the front side of the box (23) is installed with box square ear, the front side of the screen frame (31) is installed with screen frame square ear, the outer surface of the box square ear is provided with rotating pin shaft (26) and boom (27), the boom (27) is installed on the outer surface of the box square ear by pin shaft, the outer surface of the screen frame square ear is threadedly connected with star handle (29), the star handle (29) and the screen frame square ear are provided with gasket (28).

3. A low noise plastic shredder as claimed in claim 1, wherein: The both ends of the main shaft cutter body component (9) are provided with pulley locking gasket (12) and third hexagonal head bolt (11), the flywheel (3) and pulley (8) are fixedly pressed on both ends of the main shaft cutter body component (9) by third hexagonal head bolt (11) and pulley locking gasket (12), the flywheel (3) and pulley (8) are provided with first flat key (10) between the main shaft cutter body component (9).

4. A low noise plastic shredder as claimed in claim 1, wherein: The inner wall of the box (23) is pasted with a damping soundproof board (24) and filled with soundproof cotton (25).

5. A low noise plastic shredder as claimed in claim 2, wherein: The outer surface of the screen frame (31) is provided with a screen frame handle (14).

6. A low noise plastic shredder as claimed in claim 1, wherein: The front fixed blade (37) is arranged in a downward cutting inclined manner.

7. A low noise plastic shredder as claimed in claim 1, wherein: The cutter body (33) is provided with a seventh hexagonal head bolt (21) for adjusting the moving blade (22), and the front and rear sides of the box (23) are provided with fourth hexagonal head bolts (16) for adjusting the front fixed blade (37) and the rear fixed blade (30).

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