A plastic pulverizer for crushing plastic materials

Abstract

The utility model discloses a kind of for plastic material crushing plastic pulverizer, belong to plastic crushing equipment technical field, the pulverizer includes lower machine body, pivotally connected upper machine body, and the crushing mechanism of being arranged in the crushing cavity enclosed by both, opening and closing mechanism driven by oil cylinder is arranged to drive upper machine body to overturn and open, and upper and lower locking pieces are arranged on upper and lower machine body by bolt fastening.The utility model aims at the problem that pulverizer in prior art is difficult to open, is tedious and time-consuming and is time-consuming and laborious when cleaning, replacing cutter and screen, through the design that opening and closing and locking are separated, the safety, quick opening and closing of crushing cavity are realized, the convenience and efficiency of equipment maintenance are greatly improved, worker labor intensity is reduced, and independent locking mechanism ensures that equipment is structurally stable and safe in operation in high-strength crushing operation.

Description

Technical Field

[0001] This utility model relates to the technical field of plastic crushing equipment, and in particular to a plastic crusher for crushing plastic materials. Background Technology

[0002] Plastic crushers are indispensable key equipment in the plastic recycling and regeneration industry. They crush waste plastic products and scraps into smaller particles to facilitate subsequent washing, melting, and granulation processes. Currently, most common plastic crushers on the market use a working principle of mutual shearing between rotating moving blades and fixed stationary blades. The motor drives the blade roller with moving blades to rotate at high speed. The input plastic material is continuously sheared, impacted, and torn in the gap between the moving and stationary blades, eventually breaking it into small pieces. These pieces are then screened through a screen at the bottom, and particles that meet the size requirements are discharged.

[0003] However, during long-term use of plastic crushers, the blades will become dull due to wear and require periodic disassembly for sharpening and replacement. Simultaneously, to adapt to the crushing requirements of different products, screens with different aperture sizes need to be replaced. Furthermore, when crushing materials of different colors and types, the inside of the crushing chamber needs to be thoroughly cleaned to prevent cross-contamination. For many existing crushers, the crushing chamber is typically a single, heavy upper and lower body fastened with numerous bolts. When the above maintenance is required, operators must use tools to loosen and remove all the numerous bolts one by one, then use lifting equipment and considerable manpower to move the heavy upper body. After the work is completed, the tedious alignment and tightening steps must be repeated. This process is not only extremely cumbersome and time-consuming, greatly increasing downtime for equipment maintenance, but also significantly reducing production efficiency, and poses certain safety hazards during the disassembly and assembly of heavy components.

[0004] Therefore, this utility model proposes a plastic crusher for crushing plastic materials to overcome the shortcomings of the prior art. Utility Model Content

[0005] In view of the problems in the existing plastic crusher for crushing plastic materials, such as the need for manual loosening and tightening of a large number of bolts during the maintenance of the crushing chamber for cleaning, replacing blades and screens, which is cumbersome and inefficient, and the insufficient reliability of the machine body connection under high-speed crushing conditions, this utility model aims to provide a plastic crusher for crushing plastic materials with an improved structure that can effectively solve the above problems.

[0006] This utility model provides a plastic crusher for crushing plastic materials, comprising: a lower body and an upper body pivotally connected above the lower body, the lower body and the upper body forming a crushing chamber; and a crushing mechanism, an opening and closing mechanism, an upper locking member, a lower locking member and bolts.

[0007] The crushing mechanism includes a rotatably mounted moving blade and a fixedly mounted fixed blade that cooperates with the moving blade to crush the material.

[0008] Furthermore, the opening and closing mechanism is used to drive the upper body to flip open relative to the lower body. The upper locking member is disposed on the upper body, and the lower locking member is disposed on the lower body. When the upper body is closed, the upper locking member and the lower locking member are locked together by bolts. This structural combination enables convenient opening and closing of the body while ensuring safe and secure operation.

[0009] Preferably, the opening and closing mechanism includes an upper joint fixed to the outside of the upper body, a lower joint fixed to the outside of the lower body, and a hydraulic cylinder. The bottom fixed end of the hydraulic cylinder is connected to the lower joint, and its top telescopic end is connected to the upper joint.

[0010] Preferably, the upper body and the lower body are pivotally connected by a connector and a pin.

[0011] Preferably, the moving blade is mounted on the outer wall of the rotary tool holder, and the rotary tool holder is rotatably mounted on the lower body via a bearing seat.

[0012] Preferably, one end of the rotary tool holder is connected to a pulley for receiving external power, and the other end is connected to a counterweight wheel for balancing rotational inertia.

[0013] Preferably, the fixed blade is mounted on a fixed blade holder fixed inside the lower body.

[0014] Preferably, a screen is provided at the bottom of the crushing chamber, and the screen is located at the discharge port of the lower body.

[0015] Preferably, the top of the upper body is connected to a feed inlet.

[0016] This utility model has the following beneficial effects:

[0017] 1. This utility model solves the problems of difficulty in opening the crushing chamber of existing plastic crushers, cumbersome operation, and time and labor consumption when cleaning and replacing blades and screens by setting an opening and closing mechanism driven by a hydraulic cylinder and cooperating upper and lower locking parts. It achieves the technical effect of being able to open and close the machine body quickly and effortlessly, significantly improving equipment maintenance efficiency and reducing the labor intensity of workers.

[0018] 2. This utility model solves the reliability problem of the machine body connection when the crushed material generates huge impact force by using independent upper and lower locking parts and bolts to fasten and lock the upper and lower machine bodies after closing. It achieves the technical effect of stable structure, reliable locking and effective guarantee of safe and stable operation of equipment under high-intensity working conditions.

[0019] 3. This utility model solves the problem of severe vibration caused by inertial imbalance when the crushing mechanism rotates at high speed by setting a counterweight wheel at one end of the rotating shaft cutter holder. It achieves the technical effects of balancing the rotational inertia, making the equipment run more smoothly, reducing bearing wear, and extending the service life of the equipment. Attached Figure Description

[0020] Figure 1 This is a perspective view of a plastic crusher for crushing plastic materials according to the present invention.

[0021] Figure 2 This is a front view of a plastic crusher for crushing plastic materials according to the present invention.

[0022] Figure 3 This is a cross-sectional view of the lower body of a plastic crusher for crushing plastic materials according to the present invention.

[0023] Figure 4 This is a left view of a plastic crusher for crushing plastic materials according to the present invention.

[0024] Legend:

[0025] 1. Lower body; 2. Upper body; 3. Feed inlet; 4. Crushing mechanism; 41. Rotary shaft cutter holder; 42. Moving cutter; 43. Fixed cutter holder; 44. Fixed cutter; 45. Counterweight wheel; 46. Pulley; 47. Bearing seat; 48. Screen; 5. Opening and closing mechanism; 51. Hydraulic cylinder; 52. Upper joint; 53. Lower joint; 54. Connecting part; 55. Round pin; 56. Upper locking part; 57. Lower locking part; 58. Bolt. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] Example:

[0028] Please refer to Figures 1 to 4 This utility model provides a plastic crusher for crushing plastic materials, which aims to solve the problems of difficult cleaning and maintenance of the crushing chamber, cumbersome operation and low efficiency of existing plastic crushers.

[0029] To solve the above problems, such as Figure 1 , Figure 2 and Figure 4 As shown, the overall structure of the plastic crusher includes a lower body 1 and an upper body 2. The upper body 2 is pivotally connected above the lower body 1. When closed, the two together form a crushing chamber for containing and crushing materials. The lower body 1 serves as a support base and has a crushing mechanism 4 installed inside. The upper body 2 serves as a flip-up cover and has a feed inlet 3 connected to its top. The present solution is to provide an opening and closing mechanism 5 that can drive the upper body 2 to flip open relative to the lower body 1. After the upper body 2 and the lower body 1 are closed, they are locked by the cooperation of the upper locking part 56 on the upper body 2 and the lower locking part 57 on the lower body 1. This allows for quick opening of the crushing chamber for maintenance while ensuring the safety of equipment operation.

[0030] To achieve the aforementioned rapid opening and closing function, the technical solution of this embodiment is to provide an opening and closing mechanism 5 and an upper locking member 56 and a lower locking member 57 for reliably fixing the upper body 2 and the lower body 1.

[0031] Please refer to the following carefully. Figure 1 and Figure 4 The structure is described in detail below: The opening and closing mechanism 5 includes a lower joint 53 fixedly connected to the outside of the lower body 1, an upper joint 52 fixedly connected to the outside of the upper body 2, and a hydraulic cylinder 51. The bottom fixed end of the hydraulic cylinder 51 is connected to the lower joint 53, and its top telescopic end is connected to the upper joint 52. The upper body 2 and the lower body 1 are also pivotally connected through a connector 54 and a round pin 55, thus forming a stable four-bar linkage structure. When the hydraulic cylinder 51 extends or retracts, it can drive the upper body 2 to smoothly rotate and open and close around the round pin 55, which serves as the axis of rotation. When the upper body 2 is closed in place, the upper locking member 56 set on the upper body 2 and the lower locking member 57 set on the lower body 1 are precisely aligned. At this time, the two are threaded through and locked by bolts 58 to form a reliable fixed connection. This structural combination of opening and closing and locking is separated, ensuring that the crushing chamber can be opened safely and conveniently when needed and is firmly closed during operation.

[0032] Based on the above embodiments, the present invention may further include the following preferred technical solutions:

[0033] Please refer to the following carefully. Figure 3The internal structure of the crushing mechanism 4 is described in detail. The moving blade 42 of the crushing mechanism 4 is fixedly installed on the outer wall of the rotating shaft blade holder 41. The rotating shaft blade holder 41 itself is rotatably supported by the bearing seats 47 at both ends and installed in the preset mounting positions on both sides of the lower body 1. In order to realize power input and stable operation, one end of the rotating shaft blade holder 41 extends out of the lower body 1 and is fixedly connected to the pulley 46, and the other end is fixedly connected to the counterweight wheel 45. The fixed blade 44, which cooperates with the rotating moving blade 42, is installed on the fixed blade holder 43, which is firmly fixedly connected to the lower body 1. When the moving blade 42 rotates, it is misaligned with the fixed blade 44 to form shearing. In order to control the discharge particle size, a detachable screen 48 is also installed at the bottom of the crushing chamber, that is, at the discharge port of the lower body 1. At the same time, for the convenience of feeding, the feed port 3 is fixedly connected to the center of the top of the upper body 2.

[0034] Working principle: First, place the lower body 1 on a flat ground to ensure that the equipment is stable and does not shift. Then, install the bearing seats 47 of the crushing mechanism 4 at preset positions on both sides of the lower body 1. The two ends of the rotating shaft knife seat 41 cooperate with the bearing seats 47 to allow the rotating shaft knife seat 41 to rotate flexibly. Next, install the moving knife 42 on the outer wall of the rotating shaft knife seat 41, fix the fixed knife seat 43 inside the lower body 1, and install the fixed knife 44 on the fixed knife seat 43. Adjust the distance between the moving knife 42 and the fixed knife 44 to ensure that they do not collide and can crush together. Then, install the counterweight wheel 45 and the pulley 46 at both ends of the rotating shaft knife seat 41 respectively. The pulley 46 is connected to the external drive motor through a belt. The screen 48 is installed at the discharge port at the bottom of the lower body 1 to complete the assembly of the crushing mechanism 4.

[0035] Next, install the opening and closing mechanism 5, fix the lower joint 53 to the outside of the lower body 1, fix the upper joint 52 to the outside of the upper body 2, and connect the connecting piece 54 to the lower body 1 and the upper body 2 respectively through the round pin 55. The bottom fixed end of the oil cylinder 51 is connected to the lower joint 53, and the top telescopic end is connected to the upper joint 52. When the upper body 2 covers the top of the lower body 1, align the upper locking piece 56 with the lower locking piece 57, and fix the upper locking piece 56 and the lower locking piece 57 with the bolt 58. The feed port 3 is connected to the top of the upper body 2, and the overall assembly of the equipment is completed.

[0036] When the equipment is started, the external drive motor drives the pulley 46 to rotate through the belt. The pulley 46 drives the rotating shaft cutter holder 41 to rotate synchronously. The counterweight wheel 45 balances the rotational inertia of the rotating shaft cutter holder 41 to ensure that the rotating shaft cutter holder 41 rotates stably. Plastic material is fed in from the feed port 3. After the material enters the lower body 1, the rotating moving blade 42 interacts with the fixed blade 44 to shear and crush the material.

[0037] The crushed plastic particles are screened through screen 48. Particles that meet the particle size requirements fall off screen 48 and are discharged. Particles that do not meet the particle size requirements remain in the lower body 1 and continue to be crushed by the passive blade 42 and the fixed blade 44.

[0038] If it is necessary to clean the equipment and replace the screen 48, loosen the bolt 58 to release the upper locking part 56 and the lower locking part 57, start the oil cylinder 51, the oil cylinder 51 drives the upper body 2 to rotate around the upper joint 52, and drives the upper body 2 to flip upward and open. After cleaning, reverse the operation to close the upper body 2 and re-fix it, so as to realize the crushing and particle size screening of plastic materials, and at the same time facilitate equipment maintenance.

Claims

1. A plastic crusher for crushing plastic materials, comprising a lower body (1) and an upper body (2) pivotally connected above the lower body (1), the lower body (1) and the upper body (2) forming a crushing chamber, characterized in that, The plastic shredder also includes: The crushing mechanism (4) is provided in the crushing chamber. The crushing mechanism (4) includes a movable blade (42) that is rotatably provided and a fixed blade (44) that is fixedly provided and cooperates with the movable blade (42) to crush the material. The opening and closing mechanism (5) is used to drive the upper body (2) to flip open relative to the lower body (1); as well as The upper locking member (56) provided on the upper body (2) and the lower locking member (57) provided on the lower body (1) are fastened and locked by bolts (58) when the upper body (2) is closed.

2. A plastic pulverizer for crushing plastic materials according to claim 1, characterized in that, The opening and closing mechanism (5) includes an upper joint (52) fixed to the outside of the upper body (2), a lower joint (53) fixed to the outside of the lower body (1), and a hydraulic cylinder (51). The bottom fixed end of the hydraulic cylinder (51) is connected to the lower joint (53), and its top telescopic end is connected to the upper joint (52).

3. A plastic pulverizer for crushing plastic materials according to claim 1, characterized in that, The upper body (2) and the lower body (1) are pivotally connected by a connector (54) and a pin (55).

4. A plastic pulverizer for crushing plastic materials according to claim 1, characterized in that, The moving blade (42) is mounted on the outer wall of the rotating shaft blade holder (41), and the rotating shaft blade holder (41) is rotatably mounted on the lower body (1) via a bearing seat (47).

5. A plastic pulverizer for crushing plastic materials according to claim 4, characterized in that, One end of the rotating shaft cutter holder (41) is connected to a pulley (46) for receiving external power, and the other end is connected to a counterweight wheel (45) for balancing rotational inertia.

6. A plastic pulverizer for crushing plastic materials according to claim 1, characterized in that, The fixed blade (44) is mounted on the fixed blade holder (43) fixed inside the lower body (1).

7. A plastic pulverizer for crushing plastic materials according to claim 1, characterized in that, A screen (48) is provided at the bottom of the crushing chamber, and the screen (48) is located at the discharge port of the lower body (1).

8. A plastic pulverizer for crushing plastic materials according to claim 1, characterized in that, The top of the upper body (2) is connected to the feed inlet (3).

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