Waste plastic crusher

Abstract

The utility model is applicable to the technical field of crushers, and provides a waste plastic crusher which is provided with a water tank, a supporting plate, a first water pipe and a liquid supply assembly, when two crushing rollers crush waste plastic poured into the crusher, the liquid supply assembly can extract cooling liquid in the water tank on one side surface of a machine shell, so that the waste plastic is crushed; the cooling liquid is conveyed into the two crushing rollers through the first water pipes, the cooling liquid can cool the crushing rollers in the process that the cooling liquid passes through the crushing rollers and flows out through the first water pipes at the other ends of the crushing rollers, and finally the circulating water cooling effect is achieved under the action of the connecting pipes; and the phenomenon of plastic adhesion caused by continuous temperature rise of the crushing roller in the prior art is solved.

Description

Technical Field

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

[0002] Waste plastics generally need to go through processes such as picking, sorting, cleaning, drying, crushing, and re-making into particles before they can be recycled. Therefore, when recycling waste plastics, they need to be crushed.

[0003] In the prior art, when a crusher is crushing waste plastics, a crushing roller will generate a large amount of heat due to the relative friction between the cutter head and the plastic. As the crushing roller continues to heat up, the crushing roller will cause part of the plastic to melt and adhere to the cutter head. Over time, the cutter head on the crushing roller will gradually become blunt, thereby affecting the crushing effect of the crusher on the plastic. Therefore, it is necessary to design corresponding technical solutions to solve the existing technical problems. Utility Model Content

[0004] The purpose of the utility model is to provide a waste plastic crusher to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A waste plastic crusher comprises a casing and a pair of crushing rollers installed in the casing, wherein the crushing rollers are hollow structures, and a water cooling structure is also arranged outside the casing, wherein the water cooling structure comprises a water tank, a support plate, a first water pipe and a liquid supply assembly, wherein a pair of support plates are symmetrically arranged at both ends of the crushing roller on the side of the casing, a first water pipe is fixedly arranged between the support plates, the first water pipe is provided with a branch pipe, and the branch pipe is connected to the crushing roller through a rotating joint, a water tank is also fixedly arranged on the side of the casing below the first water pipe, and the two water tanks are connected through a connecting pipe, and the liquid supply assembly is used to provide power for conveying the coolant in one of the water tanks into the first water pipe.

[0007] As a further solution of the utility model: the liquid supply assembly includes a movable part, a half gear, a push-pull rod and a piston cylinder. The piston cylinders are symmetrically fixed on the two support plates, the piston cylinder is connected to the first water pipe, and the piston cylinder is connected to the water tank through the second water pipe. The movable part is movably arranged between the two support plates, and an annular groove is opened on the movable part. Push-pull rods are also symmetrically fixed on both sides of the movable part. The push-pull rods are movably inserted into the piston cylinder and a piston is installed on the end of the rod body. The half gear is rotatably arranged in the annular groove, and straight tooth plates meshing with the half gears are symmetrically arranged on both sides of the inner wall of the annular groove.

[0008] As a further solution of the utility model: a one-way valve is installed at the connection between the first water pipe and the second water pipe and the piston cylinder.

[0009] As a further solution of the utility model: the half gear is coaxially fixedly mounted on one of the crushing rollers.

[0010] As a further solution of the utility model: cooling fans are symmetrically installed on the sides of the water tank.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model is provided with a water tank, a support plate, a first water pipe and a liquid supply component. When two crushing rollers crush the waste plastic poured in, the liquid supply component can extract the cooling liquid in the water tank on one side of the casing, and transport it to the two crushing rollers through the first water pipe. In the process that the cooling liquid passes through the crushing rollers and flows out through the first water pipe at the other end of the crushing rollers, the crushing rollers can be cooled. Finally, under the action of the connecting pipe, the effect of circulating water cooling is achieved, thereby solving the problem of plastic adhesion caused by the continuous increase in the temperature of the crushing rollers in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The figure is a schematic diagram of the overall structure of a waste plastic crusher;

[0014] Figure 2 for Figure 1 Cross-sectional view of the moving parts and piston cylinder;

[0015] Figure 3 for Figure 1 A perspective view of the first water pipe;

[0016] In the figure: 1- housing, 2- crushing roller, 3- support plate, 4- water tank, 5- first water pipe, 6- rotary joint, 7- connecting pipe, 8- half gear, 9- movable part, 10- annular groove, 11- straight tooth plate, 12- push-pull rod, 13- piston cylinder, 14- piston, 15- one-way valve, 16- cooling fan, 17- second water pipe. DETAILED DESCRIPTION

[0017] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0018] See also Figure 1-3A waste plastic crusher comprises a casing 1 and a pair of crushing rollers 2 installed in the casing 1, the crushing rollers 2 are hollow structures, a water cooling structure is further provided outside the casing 1, the water cooling structure comprises a water tank 4, a support plate 3, a first water pipe 5 and a liquid supply assembly, a pair of support plates 3 are symmetrically provided at both ends of the crushing roller 2 on the side of the casing 1, a first water pipe 5 is fixedly provided between the support plates 3, the first water pipe 5 is provided with a branch pipe, and the branch pipe is connected to the crushing roller 2 through a rotating joint 6, a water tank 4 is further fixedly provided on the side of the casing 1 below the first water pipe 5, the two water tanks 4 are connected through a connecting pipe 7, and the liquid supply assembly is used for The coolant in one of the water tanks 4 is transported to the first water pipe 5 to provide power. By arranging the water tank 4, the support plate 3, the first water pipe 5 and the liquid supply component, when the two crushing rollers 2 crush the waste plastic poured in, the liquid supply component can extract the coolant in one of the side water tanks 4 of the casing 1, and transport it to the two crushing rollers 2 through the first water pipe 5. In the process of the coolant passing through the crushing roller 2 and flowing out through the first water pipe 5 at the other end of the crushing roller 2, the crushing roller 2 can be cooled. Finally, under the action of the connecting pipe 7, the effect of circulating water cooling is achieved, which solves the problem of plastic adhesion caused by the continuous increase in the temperature of the crushing roller 2 in the prior art.

[0019] Specifically, the liquid supply assembly includes a movable part 9, a half gear 8, a push-pull rod 12 and a piston cylinder 13. The piston cylinder 13 is symmetrically fixed on the two support plates 3, and the piston cylinder 13 is connected to the first water pipe 5, and the piston cylinder 13 is connected to the water tank 4 through the second water pipe 17. The movable part 9 is movably arranged between the two support plates 3, and an annular groove 10 is opened on the movable part 9. Push-pull rods 12 are also symmetrically fixed on both sides of the movable part 9. The push-pull rod 12 is movably inserted into the piston cylinder 13 and a piston 14 is installed at the end of the rod body. The half gear 8 is rotatably arranged in the annular groove 10, and the inner wall of the annular groove 10 is symmetrically arranged on both sides. A straight tooth plate 11 meshing with the half gear 8, wherein the first water pipe 5 and the second water pipe 17 are connected to the piston cylinder 13 with a one-way valve 15. Specifically, when the half gear 8 is driven to rotate, the teeth on the half gear 8 alternately mesh with the two straight tooth plates 11 in the annular groove 10, and make the movable part 9 reciprocate horizontally. When the push-pull rods 12 at both ends of the movable part 9 reciprocate in the piston cylinder 13, the negative pressure can be achieved through the action of the piston 14, so that the coolant in the water tank 4 can be pumped into the piston cylinder 13 through the second water pipe 17, and finally enter the crushing roller 2 through the first water pipe 5, so as to cool the crushing roller 2.

[0020] Preferably, the half gear 8 is coaxially fixedly mounted on one of the crushing rollers 2. By such an arrangement, there is no need to provide an additional driving element to drive the half gear 8 to rotate, thereby reducing production costs and power loss.

[0021] Furthermore, in order to speed up the cooling rate of the coolant in the two water tanks 4, cooling fans 16 are symmetrically installed on the sides of the water tanks 4 in the present application.

[0022] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0023] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A waste plastic crusher, comprising a housing (1) and a pair of crushing rollers (2) installed in the housing (1), characterized in that: The crushing roller (2) is a hollow structure. A water cooling structure is also arranged outside the casing (1). The water cooling structure comprises a water tank (4), a support plate (3), a first water pipe (5) and a liquid supply assembly. A pair of support plates (3) are symmetrically arranged on the side of the casing (1) at both ends of the crushing roller (2). A first water pipe (5) is fixedly arranged between the support plates (3). The first water pipe (5) is provided with a branch pipe, which is connected to the crushing roller (2) through a rotating joint (6). A water tank (4) is also fixedly arranged on the side of the casing (1) below the first water pipe (5). The two water tanks (4) are connected through a connecting pipe (7). The liquid supply assembly is used to provide power for transporting the cooling liquid in one of the water tanks (4) to the first water pipe (5).

2. The waste plastic crusher according to claim 1, characterized in that: The liquid supply assembly comprises a movable part (9), a half gear (8), a push-pull rod (12) and a piston cylinder (13). The piston cylinder (13) is symmetrically fixedly arranged on the two support plates (3). The piston cylinder (13) is connected to the first water pipe (5), and the piston cylinder (13) is connected to the water tank (4) through the second water pipe (17). The movable part (9) is movably arranged between the two support plates (3), and an annular groove (10) is provided on the movable part (9). Push-pull rods (12) are symmetrically fixedly arranged on both sides of the movable part (9). The end of the push-pull rod (12) movably inserted into the piston cylinder (13) is equipped with a piston (14). The half gear (8) is rotatably arranged in the annular groove (10), and straight tooth plates (11) meshing with the half gear (8) are symmetrically arranged on both sides of the inner wall of the annular groove (10).

3. The waste plastic crusher according to claim 2, characterized in that: A one-way valve (15) is installed at the connection between the first water pipe (5) and the second water pipe (17) and the piston cylinder (13).

4. The waste plastic crusher according to claim 3, characterized in that: The half gear (8) is coaxially fixedly mounted on one of the crushing rollers (2).

5. The waste plastic crusher according to claim 1, characterized in that: A cooling fan (16) is also symmetrically mounted on the side of the water tank (4).

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