Raw material crushing equipment for plastic bottle processing

Abstract

The utility model discloses raw material crushing equipment for plastic bottle processing, which comprises a machine body and an upper shell, the upper shell is positioned above the machine body, a feed port is arranged on the front side of the upper shell, and the machine body comprises a crushing groove, a main shaft, a belt pulley, a motor, a knife rest, a movable blade, a fixed blade, a screen supporting plate, a sliding groove, a screen, a sliding block and a bearing seat. The smashing groove is a semicircular groove body and is fixed to the upper shell through bolts, a main shaft is installed in the smashing groove in the left-right direction through a bearing seat, the right end of the main shaft is in key connection with a belt wheel, the belt wheel is driven by a motor below the belt wheel, a knife rest is welded to the main shaft, and movable blades are arranged on the knife rest. Fixed blades are arranged at the front and back positions of a top opening of the smashing groove. The utility model solves the problems that the screen of the plastic bottle crushing equipment is fixed and cannot shake and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic bottle crushing, in particular to a raw material crushing device for plastic bottle processing. Background Art

[0002] The raw materials for processing plastic bottles usually come from recycled waste plastic bottles. Before the waste plastic bottles are made into new plastic bottles, they need to be crushed into small pieces, which usually require crushing equipment for processing. The existing plastic bottle crushing equipment uses a screen to screen the particles of the required size after crushing, and the screen is usually fixed, so that the screening efficiency cannot be improved.

[0003] The utility model patent with the publication number CN219618259U discloses a crushing device for plastic bottles, wherein the crushing roller group is arranged in the shell and is located below the feed port, the screening component is arranged in the shell and is located below the crushing roller group, the screening component is provided with a screen hole, one side of the screening component is arranged at a position close to the sorting port and is rotatably connected to the shell through an elastic component, and the driving device is installed on the shell, and the driving device can drive the screening component to vibrate up and down, thereby realizing rapid screening of plastic fragments on the screening component to avoid accumulation of plastic fragments. However, the crushing roller group is driven by a motor, and the screening component is driven by another driving device for screening. The two driving devices are separate and independent, and it is impossible for one driving device to provide power for crushing and screening at the same time. Using two driving devices will increase maintenance and repair costs.

[0004] The utility model patent with the publication number CN218700500U discloses a waste plastic bottle crusher that can be screened. The power is transmitted through a belt, which is convenient for the rotary motor to use the rotating shaft to drive the rotating rod and the half gear to rotate, and through the cooperation of the rack, the movable frame and the slide plate are pushed to slide back and forth at both ends of the crushing box, and then through the cooperation of the connecting plate, the screening frame is driven to move left and right at the bottom of the crushing box, which improves the screening effect and facilitates the separation of the large plastic bottle pieces and small plastic bottle pieces that are broken. Since the rotating shaft of the crushing roller does not change its speed during operation, the half gear rotates synchronously with the rotating shaft through the belt, so that the speed of the half gear is always a fixed value, and the rack is driven by the half gear to cause the screening frame to move back and forth, resulting in a constant moving frequency of the screening frame. For the screening of plastic bottle fragments of different thicknesses, it is impossible to freely change the screening frequency of the screening frame. Utility Model Content

[0005] The utility model aims to provide a raw material crushing device for plastic bottle processing, so as to solve the problems that the screen of the existing plastic bottle crushing device is fixed and cannot be shaken.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A raw material crushing equipment for plastic bottle processing comprises a body and an upper shell, the upper shell is located above the body, a feed port is arranged on the front side of the upper shell, the body comprises a crushing trough, a main shaft, a pulley, a motor, a tool holder, a movable blade, a fixed blade, a screen support plate, a slide groove, a screen, a slider, and a bearing seat, the crushing trough is a semicircular trough body, which is fixed to the upper shell with bolts, a main shaft is installed in the left and right directions of the crushing trough through the bearing seat, the right end key of the main shaft is connected with the pulley, and the pulley is driven by the motor below, a tool holder is welded on the main shaft, a movable blade is arranged on the tool holder, a fixed blade is arranged at the front and rear positions of the top opening of the crushing trough, an arc-shaped screen support plate is welded on the left and right sides of the bottom of the crushing trough, a screen is arranged above the screen support plate, a slide groove is arranged at the front and rear positions above the crushing trough, a slider is arranged at the front and rear tops of the screen, and the slider is connected by sliding left and right in the slide groove.

[0008] By adopting the above technical solution, the screen is movably connected to the crushing trough, and the plastic on the screen can be shaken by moving the screen left and right, thereby accelerating the discharge speed of qualified plastics.

[0009] Preferably, the tool holder is divided into two groups, a left group and a right group, and the movable blades on the two groups of tool holders are not in the same plane.

[0010] By adopting the above technical solution, the movable blades staggered to the left and right increase the crushing efficiency.

[0011] Preferably, the tool holder is a polygonal structure, with a movable blade installed on each side.

[0012] By adopting the above technical solution, multiple movable blades can enhance the frequency of plastic crushing.

[0013] Preferably, the movable blade can move radially on the blade holder and is fixed by bolts.

[0014] By adopting the above technical solution, the gap between the movable blade and the fixed blade can be adjusted.

[0015] Preferably, the fixed blade is fixed horizontally, the movable blade is not parallel to the horizontal line, and the movable blade is in point contact with the fixed blade at the shearing position.

[0016] By adopting the above technical solution, the shearing force is increased through point contact between the fixed blade and the movable blade.

[0017] Preferably, the screen is fitted to a screen support plate.

[0018] By adopting the above technical solution, it is prevented that the crushed plastic leaks out from the gap between the screen and the screen supporting plate.

[0019] Preferably, the left end of the main shaft is connected to a turntable via a key, a plurality of top blocks are arranged on the circumference of the right side of the turntable, a guide cylinder is welded to the bottom of the left screen support plate, the guide shaft slides left and right inside the guide cylinder, the right end of the guide shaft is fixed to the bottom of the screen, a top ball is arranged at the left end, a spring is arranged between the top ball and the guide cylinder, the spring is sleeved on the guide shaft, and the top ball slides along the outer contour of the top block.

[0020] By adopting the above technical solution, the main shaft drives the turntable, so that the top block of the turntable contacts the top ball, so that the guide shaft moves left and right along the guide sleeve, driving the screen to move left and right, and reset through the spring to form a cyclic movement of the screen.

[0021] Preferably, the top block is wavy in shape, and the outer contour has smooth rounded corners.

[0022] By adopting the above technical solution, the top ball and the top block can be in contact without obstruction, thereby reducing friction.

[0023] Preferably, the top block is fixed to the turntable by bolts.

[0024] By adopting the above technical solution, the top block can be easily disassembled and the shaking frequency of the screen can be changed.

[0025] Compared with the prior art, the utility model has the following beneficial effects:

[0026] 1) The screen can move left and right in the chute in the crushing trough through the slider, which speeds up the discharge speed of the plastic blocks of qualified size after crushing;

[0027] 2) Driven by one motor, the crushing operation of plastic and the screening operation of plastic particles are realized, without adding residual screening operation of the motor, reducing the maintenance times of the motor, and realizing the simultaneous start and stop of crushing and screening operations;

[0028] 3) The number of top blocks can be freely assembled with the turntable. The moving frequency of the screen can be changed by the number of top blocks, which is convenient for screening plastic bottle fragments of different thicknesses and more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the appearance structure of the utility model;

[0030] Figure 2 It is a schematic diagram of the body structure of the utility model;

[0031] Figure 3 This is a cross-sectional view of the assembly of the crushing trough and the screen of the utility model;

[0032] Figure 4 This is the front view of the body of the utility model;

[0033] Figure 5It is a cross-sectional view of the machine body of the utility model;

[0034] Icons: 1. Crushing trough; 2. Main shaft; 3. Pulley; 4. Motor; 5. Tool holder; 6. Movable blade; 7. Fixed blade; 8. Screen support plate; 9. Slide; 10. Screen; 11. Slider; 12. Bearing seat; 13. Turntable; 14. Top block; 15. Guide cylinder; 16. Guide shaft; 17. Top ball; 18. Spring; 19. Feed port. DETAILED DESCRIPTION

[0035] In order to make the purpose, method scheme and advantages of the embodiments of the utility model clearer, the method scheme in the embodiments of the utility model is clearly and completely described. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings herein can be arranged and designed in various different configurations.

[0036] The following is combined with Figure 1-5 The embodiments of the present application are described in further detail.

[0037] Combined with Figure 1-Figure 5 , an embodiment provided by the present application: a raw material crushing device for plastic bottle processing, comprising a body and an upper shell, the upper shell is located above the body and is assembled by bolt disassembly, the front side of the upper shell is provided with a feed port 19, which is the entrance for crushing plastic raw materials, the body comprises a crushing trough 1, a main shaft 2, a pulley 3, a motor 4, a tool holder 5, a movable blade 6, a fixed blade 7, a screen support plate 8, a slide trough 9, a screen 10, a slider 11, and a bearing seat 12, the crushing trough 1 is a semicircular trough body, the main shaft 2 is installed in the left and right directions of the crushing trough 1 through the bearing seat 12, the main shaft 2 The right end key is connected with a pulley 3, and the pulley 3 is driven by a belt transmission of a motor 4 below. A tool holder 5 is welded on the main shaft 2, and a movable blade 6 is arranged on the tool holder 5. Fixed blades 7 are arranged at the front and rear positions of the top opening of the crushing trough 1. Arc-shaped screen support plates 8 are welded on the left and right sides of the bottom of the crushing trough 1. A screen 10 is arranged above the screen support plate 8. A slide groove 9 is arranged at the front and rear positions above the crushing trough 1. Slide blocks 11 are arranged at the front and rear tops of the screen 10. The slide block 11 is connected by sliding left and right along the slide groove 9 to achieve the effect of quickly unloading plastic fragments on the screen 10.

[0038] The tool holders 5 are divided into two groups, the left and right groups of tool holders 5 are staggered, so that the movable blades 6 on the two groups of tool holders 5 are not in the same plane, thereby increasing the crushing efficiency.

[0039] The blade holder 5 is a polygonal structure, and each side is provided with a movable blade 6. The more movable blades 6 there are, the higher the crushing frequency of the plastic raw material.

[0040] The movable blade 6 can move radially on the tool holder 5 and is fixed by bolts. The position of the movable blade 6 can be freely adjusted. When the movable blade 6 is worn, the gap between the movable blade 6 and the fixed blade 7 becomes larger. The gap between the movable blade 6 and the fixed blade 7 is changed to ensure smooth cutting of the plastic bottle raw material.

[0041] The fixed blade 7 is fixed horizontally, and the movable blade 6 is not parallel to the horizontal line. The movable blade 6 is in point contact with the fixed blade 7 at the shearing position, and the shearing of the plastic bottle raw material is achieved through point contact. Under the same pressure condition, compared with the two parallel extrusion crushing methods, the shearing method will be easier.

[0042] The screen 10 fits the screen support plate 8 to reduce the gap between the screen 10 and the screen support plate 8, thereby preventing the crushed plastic from falling out of the gap.

[0043] The left end of the main shaft 2 is connected to a turntable 13 through a key. The driving source of the turntable 13 also comes from the motor 4. A plurality of top blocks 14 are arranged on the circumference of the right side of the turntable 13, and the top blocks 14 are arranged on the trajectory of the same circle. A guide cylinder 15 is welded to the bottom of the left screen support plate 8. The guide shaft 16 slides left and right along the guide cylinder 15. The right end of the guide shaft 16 is fixed to the bottom of the screen 10, so that the screen 10 and the guide shaft 16 move synchronously. A top ball 17 is welded to the left end of the guide shaft 16. A spring 18 is arranged between the top ball 17 and the guide cylinder 15. The spring 18 is set on the guide shaft 16. The top ball 17 slides along the outer contour of the top block 14 and is reset by the spring 18. The motor is also used as the main driving source to realize the rotation of the turntable 13, and the contact between the top block and the top ball makes the guide shaft 16 move left and right, and the screen 10 shakes left and right to realize the screening of plastic particles after crushing.

[0044] The top block 14 is a wavy structure with an outer contour having smooth rounded corners. The wavy structure is ups and downs, which satisfies the conditions for the guide shaft to move left and right. The smooth surface and rounded corners avoid increasing resistance when the top ball 17 contacts the top block, making the top ball 17 smoother when contacting the top block 14.

[0045] The top block 14 is fixed to the turntable 13 by bolts, so that the top block can be assembled with the turntable 13, and the more the top blocks 14 are, the faster the movement frequency of the screen 10 is, and vice versa.

[0046] The working principle of the raw material crushing equipment for plastic bottle processing in this application is:

[0047] Cutting and crushing: Start the motor 4, the main shaft 2 is driven to rotate through the pulley 3, the movable blade 6 rotates, and the plastic bottle raw material is thrown in from the feed port 19. The plastic bottle is cut and crushed by the movable blade 6 and the fixed blade 7 and remains in the crushing tank 1. The large piece of plastic continues to be driven by the rotating movable blade 6 and the fixed blade 7 to cut and crush it several times to become small particles of plastic, which fall from the screen 10. The particles that do not meet the size will continue to be cut and crushed;

[0048] Screening: The turntable 13 is driven by the main shaft 2, so that the top block 14 rotates with the turntable 13. The top block 14 contacts the top ball 17 and is supported by the spring 18, so that the top ball 17 slides along the wavy surface of the top block 14, causing the guide shaft 16 to slide left and right along the guide cylinder 15. The screen 10 and the guide shaft 16 move left and right synchronously. The plastic blocks and small particles of plastic accumulated in the screen 10 can accelerate the falling speed through the shaking of the screen 10 to avoid excessive accumulation in the crushing tank 1.

[0049] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A raw material crushing device for plastic bottle processing, comprising a machine body and an upper shell, wherein the upper shell is located above the machine body, and a feed inlet (19) is arranged on the front side of the upper shell, characterized in that: The machine body comprises a crushing trough (1), a main shaft (2), a pulley (3), a motor (4), a knife holder (5), a movable blade (6), a fixed blade (7), a screen support plate (8), a slide trough (9), a screen (10), a slider (11), and a bearing seat (12). The crushing trough (1) is a semicircular trough body, which is bolted to the upper shell body. The main shaft (2) is installed in the left and right directions of the crushing trough (1) through the bearing seat (12). The right end of the main shaft (2) is keyed to a pulley (3). The pulley (3) is connected to the motor ( 4) driven, a tool holder (5) is welded on the main shaft (2), a movable blade (6) is arranged on the tool holder (5), a fixed blade (7) is arranged at the front and rear positions of the top opening of the crushing trough (1), an arc-shaped screen support plate (8) is welded on the left and right sides of the bottom of the crushing trough (1), a screen (10) is arranged above the screen support plate (8), a slide groove (9) is arranged at the front and rear positions above the crushing trough (1), a slider (11) is arranged at the front and rear top of the screen (10), and the slider (11) is connected to slide left and right along the slide groove (9).

2. A raw material crushing equipment for plastic bottle processing according to claim 1, characterized in that: The tool holder (5) is divided into two groups, a left group and a right group, and the movable blades (6) on the two groups of tool holders (5) are not on the same plane.

3. A raw material crushing equipment for plastic bottle processing according to claim 2, characterized in that: The knife holder (5) is a polygonal structure, with a movable blade (6) installed on each side.

4. A raw material crushing equipment for plastic bottle processing according to claim 3, characterized in that: The movable blade (6) can move radially on the blade holder (5) and is fixed by bolts.

5. The raw material crushing equipment for plastic bottle processing according to claim 4, characterized in that: The fixed blade (7) is fixed horizontally, the movable blade (6) is not parallel to the horizontal line, and the movable blade (6) is in point contact with the fixed blade (7) at the shearing position.

6. The raw material crushing equipment for plastic bottle processing according to claim 1, characterized in that: The screen (10) is fitted to the screen support plate (8).

7. The raw material crushing equipment for plastic bottle processing according to claim 1, characterized in that: The left end of the main shaft (2) is connected to a turntable (13) through a key, and a plurality of top blocks (14) are arranged on the circumference of the right side of the turntable (13). A guide cylinder (15) is welded to the bottom of the left screen support plate (8), and a guide shaft (16) slides left and right along the guide cylinder (15). The right end of the guide shaft (16) is fixed to the bottom of the screen (10), and a top ball (17) is arranged at the left end. A spring (18) is arranged between the top ball (17) and the guide cylinder (15), and the spring (18) is sleeved on the guide shaft (16). The top ball (17) slides along the outer contour of the top block (14).

8. The raw material crushing equipment for plastic bottle processing according to claim 7, characterized in that: The top block (14) is wavy in shape, and the outer contour has smooth rounded corners.

9. The raw material crushing equipment for plastic bottle processing according to claim 8, characterized in that: The top block (14) is fixed to the rotating disk (13) by bolts.

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