CN202803347U - Plastic mill - Google Patents

Abstract

The utility model relates to a plastic pulverizer, comprising a feed hopper installed on the upper body of the pulverization chamber, the front end of the upper body of the pulverization chamber is locked and the rear end is pinned to the lower body of the pulverization chamber through a rotating shaft. The front fixed knife and the rear fixed knife are installed, and the lower body insert is installed at the extension position of the lower part of the rear arc plate of the upper body of the crushing chamber. The lower body insert is pinned to the lower body of the crushing chamber through the inner insert shaft and can be locked. The net device is pinned to the lower body of the crushing chamber through the rotating shaft of the screen frame, and is screwed up by the locking rod to fit the lower part of the front knife-loading surface of the lower body of the crushing chamber; the main shaft rotor is suspended in the middle of the lower body of the crushing chamber, and a Rotate the moving knife, the lower body of the crushing chamber is fixed on the bottom frame, and the power transmission device is connected to the main shaft rotor and can be driven to rotate. The structural setting of the insert in the lower body of the utility model can effectively expand the space of the crushing storage area, improve the cutting and grabbing point, improve the crushing efficiency and crush large-diameter crushed products.

Description

A plastic shredder

technical field

The utility model belongs to the technical field of pulverizing devices, in particular to a plastic pulverizer.

Background technique

With the application of plastic products more and more widely, a large amount of waste plastic products have also been produced. How to recycle has gradually become a topic of social concern. The knife rotates or the rotating blade crushes it into a suitable particle size before processing.

Existing plastic pulverizers can pulverize various plastics such as plastic profiles, pipes, rods, silk threads, films, and waste rubber products. However, this type of equipment generally has a complex structure and low production efficiency. Generally, it can only crush small-volume plastic products, and the crushing effect is not ideal, especially for large-caliber hollow barrel plastic products. If the product is low, the product will bounce, so that there will be large pieces of debris, and the crushing is not complete. These large pieces of crushed objects are easy to block the machine and reduce the service life of the crusher.

Contents of the invention

The technical problem to be solved by the utility model is to provide a plastic pulverizer, which can effectively improve the crushing efficiency and crush large-sized products.

The technical solution adopted by the utility model to solve the technical problems is: provide a plastic pulverizer, including a feed hopper, an upper body of the pulverization chamber, a rotating shaft, a lower body of the pulverization chamber, a front fixed knife, a rear fixed knife, an insert in the lower body, Inner block rotating shaft, screen device, screen frame rotating shaft, locking rod, main shaft rotor, rotating knife, bottom frame, power transmission device, the lower part of the front side of the feed hopper is concave inward to form a continuous folding plate, And the feed hopper is fixedly installed on the upper body of the crushing chamber, and the front and rear sides of the upper body of the crushing chamber are curved plates or folded plates; the front end of the upper body of the crushing chamber is locked and the rear end passes through the shaft and the crushing chamber The lower body is pinned, and there are two front and rear knife installation positions on the lower body of the crushing chamber. The front knife installation position is close to the lower part of the front arc plate of the upper body of the crushing chamber and is equipped with a front fixed knife, and the rear knife installation position is located on the crushing chamber. The extended position of the lower part of the rear curved plate of the body is equipped with a rear fixed knife opposite to the cutting edge of the front fixed knife. The insert in the lower body is installed; the insert in the lower body is connected with the lower body of the crushing chamber, the lower body of the crushing chamber is pinned to the rear of the screen device through the shaft of the screen frame, and the front of the screen device is screwed up by the locking rod to be connected with the screen device. The lower part of the front knife surface of the lower body of the crushing chamber fits together; a main shaft rotor is suspended in the middle of the lower body of the crushing chamber and can rotate freely, and a rotating knife is installed on the main shaft rotor; the upper body and the lower body of the crushing chamber are inlaid The block, the lower body of the crushing chamber and the inner side of the screen device and the rotary cylinder of the rotary knife are composed of an opening facing upwards, a clearance fit in the lower part, a gradual opening of the gap in the front and upper half, and a contraction of the rear opening from top to bottom with the closing part exceeding The crushing chamber of the insert in the lower body; the lower body of the crushing chamber is fixed to the bottom frame, a power transmission device is fixed on one side of the bottom frame, and the output shaft of the power transmission device is connected to the main shaft rotor.

The insert in the lower body is pinned or locked or installed in a sliding groove with the lower body of the crushing chamber through the inner insert rotating shaft.

The inserts in the lower body are arranged in one piece or divided into several pieces along the axial direction of the rotation shaft of the inner inserts.

Three or more sets of rotating movable knives can be installed on the main shaft rotor.

The folded plate is formed by sequentially connecting several inclined plates.

Beneficial effect

The utility model relates to a plastic pulverizer, which has a simple structure, adds inserts in the lower body, effectively expands the space of the pulverization and storage area, and improves the force point where the plastic parts are cut in the upper body of the pulverization chamber, and the cutting point is easier. Effective, the first cutting breakage rate is higher, the cutting efficiency is improved, and the situation that the cutting point is low can not be broken correctly due to the bouncing of the product, and a larger size barreled product can be tried, and the inclined surface structure of the upper feeding port is improved. The barrel-shaped object can be automatically turned horizontally when it falls, which can improve the crushing efficiency and crush large-diameter crushed products.

Description of drawings

Fig. 1 is a half-cut perspective view of the utility model.

Fig. 2 is a partially cut-away perspective view of the utility model.

Fig. 3 is a perspective view of the feeding hopper of the utility model.

Fig. 4 is a partially enlarged view of the utility model.

Fig. 5 is the operating structure diagram before the improvement of the utility model.

Fig. 6 is the operation structural diagram of the utility model.

Fig. 7 is a schematic diagram of the structure of the insert in the lower body of the present invention divided into several pieces.

Detailed ways

Below in conjunction with specific embodiment, further set forth the utility model. It should be understood that these embodiments are only used to illustrate the present utility model and are not intended to limit the scope of the present utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the appended claims of the application.

Example 1

As shown in Figures 1-7, a plastic pulverizer includes a feed hopper 1, an upper body 2 of the crushing chamber, a rotating shaft 3, a lower body 4 of the crushing chamber, a front fixed knife 5a, a rear fixed knife 5b, and an insert 6 in the lower body. Inner insert rotating shaft 7, screen device 8, screen frame rotating shaft 9, locking rod 10, main shaft rotor 11, rotating knife 12, chassis 13, power transmission device 14, folding plate 15;

The lower part of the front side of the feed hopper 1 is concave inward to form a continuous folded plate 15, and the feed hopper 1 is fixedly installed on the upper body 2 of the crushing chamber. The front and rear sides of the upper body 2 of the crushing chamber are curved plates or approximate arcs. type folded plate;

The front end of the upper body 2 of the crushing chamber is locked and the rear end is pinned to the lower body 4 of the crushing chamber through the rotating shaft 3. The lower body 4 of the crushing chamber has two front and rear knife installation positions, and the front knife installation position is close to the upper body 2 of the crushing chamber. The lower part of the front curved plate is equipped with a front fixed knife 5a, and the rear knife position is located at the extension position of the lower part of the rear curved plate of the crushing chamber upper body 2 and is equipped with a rear fixed knife 5b opposite to the cutting edge of the front fixed knife 5a. There is also an extension space between the upper part of the rear fixed knife 5b and the lower part of the rear arc-shaped plate of the crushing chamber upper body 2, and the lower body insert 6 is installed at the extension space;

When the insert 6 in the lower body is connected with the lower body 4 of the crushing chamber and the insert 6 in the lower body rotates upwards according to the rotating shaft 7 of the inner insert and closes in place and the upper and lower sides are locked, the lower body 4 of the crushing chamber passes through the rotating shaft 9 of the screen frame and the screen. The rear part of the device 8 is pinned, and the front part of the screen device 8 is spirally lifted by the locking rod 10 to fit the lower part of the front knife surface of the lower body 4 of the crushing chamber;

The main shaft rotor 11 is suspended in the middle of the lower body 4 of the crushing chamber and can rotate freely. The main shaft rotor 11 is equipped with a rotating movable knife 12. The rotating movable knife 12 can be sequentially connected with the front fixed knife 5a and the rear fixed knife 5b through the rotation of the main shaft rotor 11. Perform relative shearing motion;

The upper body 2 of the crushing chamber, the insert 6 in the lower body, the inner side of the lower body 4 of the crushing chamber and the screen device 8, and the rotating cylindrical surface of the rotating knife 12 are composed of an opening facing upwards, a gap fit in the lower part, and a gap in the front and upper half. , the rear opening shrinks from top to bottom and the closing part exceeds the crushing cavity of the insert 6 in the lower body;

The lower body 4 of the crushing chamber is fixed to the bottom frame 13, and a power transmission device 14 is fixed on one side of the bottom frame 13. The output shaft of the power transmission device 14 is connected with the main shaft rotor 11 and can be driven to rotate.

The lower body insert 6 is split into several pieces along the axial direction of the inner insert rotating shaft 7 .

The insert 6 in the lower body is pin-connected or locked or installed with the lower body 4 of the crushing chamber through the inner insert rotating shaft 7 .

At least three groups of rotating movable knives 12 can be installed on the main shaft rotor 11 .

The rear curved plate of the upper body 2 of the crushing chamber, the insert 6 in the lower body, the rear fixed knife 5b, the main shaft rotor 11 and the rotating movable knife 12 enclose the storage space before crushing.

The insert 6 in the lower body is rotated downward according to the inner insert rotating shaft 7 and combined with the backward rotation of the upper body 2 of the crushing chamber 2 around the rotating shaft 3, the open extension space and the upper space are used for the front fixed knife 5a and the rear The loading and unloading maintenance of the fixed knife 5b and the rotating movable knife 12 and the cleaning and maintenance inside the crushing chamber.

Example 2

The whole crushing process is as follows: plastic parts enter the feed hopper 1 from the entrance, and fall on the folding plate 15 in turn. Since the folding plate 15 is connected by several inclined surfaces at a certain angle to form a continuous transition surface, the plastic parts, especially the barrel-shaped plastic When it falls from the feed hopper 1 and rolls down along the folding plate 15, it will automatically turn horizontally; at this time, the power transmission device 14 drives the main shaft rotor 11 to rotate, and several groups of rotating knives 12 on the main shaft rotor 11 also rotate accordingly, and It forms a shearing movement with the front fixed knife 5a and the rear fixed knife 5b at the lower part of the front and rear arc-shaped plates of the upper body 2 of the crushing chamber; because the insert 6 in the lower body expands the space of the crushing storage area, the plastic parts are placed on the crushing chamber. The stress point of the cutting in body 2 is increased, the cutting into the grabbing point is more effective, the first cutting crushing rate is higher, the cutting efficiency is improved, and the situation that the cutting point is low because the product cannot be broken correctly due to the bouncing of the product can be tried, and a larger cutting point can be tried The barreled products of the same size, and then the plastic particles after the crushing by the rotating movable knife 12 enter the lower body 4 of the crushing chamber through the screening of the screen device 8 .

Claims (5)

1. A plastic pulverizer, comprising a feed hopper (1), an upper body of the pulverization chamber (2), a lower body of the pulverization chamber (4), a fixed knife, a screen device (8), and a power transmission device (14), its characteristics It is: the lower part of the front side of the feed hopper (1) is concave inward to form a continuous folded plate (15), and the feed hopper (1) is fixedly installed on the upper body (2) of the crushing chamber, and the crushing chamber The front and rear sides of the upper body (2) are arc-shaped or folded plates; the front end of the upper body (2) of the crushing chamber is locked with the lower body (4) of the crushing chamber, and the rear end is connected to the lower body of the crushing chamber ( 4) Pin connection, the lower body of the crushing chamber (4) has two front and rear knife installation positions, the front knife installation position is close to the lower part of the front arc plate of the upper body of the crushing chamber (2) and is equipped with a front fixed knife (5a ), the position of the rear knife is located at the extension position of the lower part of the rear arc plate of the crushing chamber upper body (2), and the rear fixed knife (5b) opposite to the cutting edge of the front fixed knife (5a) is installed, and the rear fixed knife (5b) ) and the lower part of the rear arc-shaped plate of the upper body of the crushing chamber (2) is installed with a lower body insert (6); the lower body insert (6) is connected with the lower body (4) of the crushing chamber, The lower body of the crushing chamber (4) is pinned to the rear of the screen device (8) through the screen frame shaft (9), and the front of the screen device (8) is screwed up by the locking rod (10) to connect with the lower body of the crushing chamber (4). ) is attached to the lower part of the front knife surface; the lower body of the crushing chamber (4) is suspended in the middle with a main shaft rotor (11), and a rotating movable knife (12) is installed on the main shaft rotor (11); the crushing chamber The inner side of the upper body (2), the lower body insert (6), the lower body of the crushing chamber (4) and the screen device (8) and the rotating cylindrical surface of the rotary knife (12) form an opening facing upwards, and the lower part is in clearance fit. The gap in the front and upper half gradually opens, the rear opening shrinks from top to bottom, and the closing part exceeds the lower body insert (6) of the crushing chamber; the lower body (4) of the crushing chamber is fixed to the bottom frame (13), and the bottom frame (13) One side is fixed with a power transmission device (14), and the output shaft of the power transmission device (14) is connected with the main shaft rotor (11). 2. A plastic pulverizer according to claim 1, characterized in that: the lower body insert (6) is pinned or locked to the lower body (4) of the crushing chamber through the inner insert shaft (7) or chute installation. 3. A plastic pulverizer according to claim 1 or 2, characterized in that: said lower body insert (6) is formed into a whole piece or split into several pieces along the axial direction of the inner insert shaft (7). block arrangement. 4. A plastic shredder according to claim 1, characterized in that: three or more sets of rotating knives (12) can be installed on the main shaft rotor (11). 5. A plastic shredder according to claim 1, characterized in that: the folding plate (15) is formed by connecting several inclined plates in sequence.

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