Plastic crusher composed of multiple screens

Abstract

The utility model discloses a plastic crusher consisting of a plurality of screens in the field of crushers, which comprises a crusher main body and a bottom filter screen arranged at the bottom of the crusher main body, the crusher main body consists of a main body outer box body, a crushing power shaft, a rotary crushing knife, a fixed knife rest, a fixed crushing knife and a belt wheel, the main body outer box body is arranged on the periphery of the crusher main body, a feeding opening is formed in the top of the crusher main body, a rotating shell plate is connected to one side wall of the main body outer box body through a hinge, and a plurality of side supporting rib plates which are vertically arranged are fixed to the rotating shell plate at equal intervals. The side arc-shaped screen is additionally arranged on the crusher, so that the crusher consists of the bottom screen and the side screen, crushed materials are filtered at the bottom and the two sides of the crusher through the bottom filtering screen and the side arc-shaped screen, the filtering area is large, and the filtering efficiency can be greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of crushers, in particular to a plastic crusher composed of multiple screen meshes. Background Art

[0002] A plastic crusher, also known as a plastic shredder, is mainly used for crushing various plastic plastics and rubbers, such as plastic profiles, pipes, rods, silk threads, films, and waste rubber products. The pellets can be directly supplied to an extruder or an injection molding machine, or can be recycled through a granulator. There is also a plastic crusher which is a peripheral device of an injection molding machine and can crush and recycle defective products and sprue materials generated by the injection molding machine. When filtering raw materials, most of the existing plastic crushers only filter through the filter screen arranged at the bottom. Due to the insufficient area of the screen mesh, the crushing products and efficiency are relatively low. Therefore, those skilled in the art provide a plastic crusher composed of multiple screen meshes to solve the problems raised in the above background art. Content of the Utility Model

[0003] The purpose of the utility model is to provide a plastic crusher composed of multiple screen meshes to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A plastic crusher composed of multiple screen meshes includes a crusher main body and a bottom filter screen arranged at the bottom of the crusher main body. The crusher main body is composed of a main body outer box, a crushing power shaft, a rotating crushing knife, a fixed knife holder, a fixed crushing knife, and a belt pulley. The main body outer box is arranged on the periphery of the crusher main body, and a feed inlet is formed at the top of the crusher main body. A rotating outer shell plate is connected to one side wall of the main body outer box through a hinge. A plurality of vertically arranged side support rib plates are equidistantly fixed on the rotating outer shell plate. A side arc screen is connected to the side support rib plates through brackets or screws. The bottom filter screen is installed between two fixed knife holders at the bottom through brackets or screws, and the bottom filter screen is in an arc structure.

[0006] As a further scheme of the utility model: The top of the side arc screen is fixedly connected to the side support rib plates. A shell locking part is hinged to the side wall of the main body outer box of the crusher main body. The shell locking part includes a locking stud and a compression nut. The main body outer box and the rotating outer shell plate are connected through the shell locking part.

[0007] As a still further scheme of the utility model: The crushing power shaft is rotatably arranged inside the main body outer box through a bearing. One end of the crushing power shaft passes through the main body outer box and is connected to the belt pulley through a key. One end of the crushing power shaft passes through the main body outer box and is fixedly connected to a flywheel.

[0008] As a further solution of the present utility model: A plurality of rotary crushing knives are press-fitted around the crushing power shaft through screws. Between the inner walls of the main outer box body, a fixed knife holder equal in number to the rotary crushing knives is fixedly connected. A fixed crushing knife is press-fitted on the fixed knife holder through a pressing plate.

[0009] Compared with the prior art, the beneficial effects of the present utility model are:

[0010] By adding a side arc-shaped screen on the crusher, the present utility model enables the crusher to be composed of a bottom screen and a side screen. The crushed material is filtered at the bottom and two sides of the crusher through the bottom filter screen and the side arc-shaped screen, with a large filtering area, which can greatly improve the filtering efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic structural diagram of the present utility model;

[0012] Figure 2 is a bottom view structural diagram of the present utility model;

[0013] Figure 3 is a sectional structural diagram of the present utility model.

[0014] In the figure: 1. Crusher main body; 101. Main outer box body; 102. Crushing power shaft; 103. Rotary crushing knife; 104. Fixed knife holder; 105. Fixed crushing knife; 106. Belt pulley; 2. Rotating outer shell plate; 3. Side arc-shaped screen; 4. Top baffle; 5. Side support rib plate; 6. Bottom filter screen; 7. Outer shell locking part. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0016] Please refer to Figures 1 to 3, in the embodiments of the present utility model, a plastic crusher composed of multiple screen meshes includes a crusher main body 1 and a bottom filter screen 6 provided at the bottom of the crusher main body 1. The crusher main body 1 is composed of a main body outer box 101, a crushing power shaft 102, a rotating crushing knife 103, a fixed knife holder 104, a fixed crushing knife 105, and a belt pulley 106. The main body outer box 101 is arranged on the periphery of the crusher main body 1, and a feed inlet is formed at the top of the crusher main body 1. A rotating outer shell plate 2 is hinged to one side wall of the main body outer box 101 of the crusher main body 1. A plurality of vertically arranged side support rib plates 5 are fixed at equal intervals on the rotating outer shell plate 2. A side arc screen 3 is connected to the side support rib plates 5 through brackets or screws. The bottom filter screen 6 is installed between two fixed knife holders 104 at the bottom through brackets or screws, and the bottom filter screen 6 is in an arc structure.

[0017] By adopting the above technical solution, by adding a side arc screen 3 to the crusher, the crusher can be composed of two screen meshes at the bottom and on the side. The crushed materials are filtered by the bottom filter screen 6 and the side arc screen 3 at the bottom and on the two sides of the crusher. The filtering area is large, and the filtering efficiency can be greatly improved.

[0018] Among them, the top of the side arc screen 3 is fixedly connected to the side support rib plates 5. An outer shell locking part 7 is hingedly connected to the side wall of the main body outer box 101 of the crusher main body 1. The outer shell locking part 7 includes a locking stud and a compression nut. The main body outer box 101 and the rotating outer shell plate 2 are connected through the outer shell locking part 7, and the cutting tools can be exposed by opening the rotating outer shell plate 2, which is convenient for tool replacement operation.

[0019] In this embodiment, the crushing power shaft 102 is rotatably arranged inside the main body outer box 101 through bearings. One end of the crushing power shaft 102 passes through the main body outer box 101 and is key-connected to the belt pulley 106 through a key. One end of the crushing power shaft 102 passes through the main body outer box 101 and is fixedly connected with a flywheel.

[0020] Among them, a plurality of groups of rotating crushing knives 103 are press-connected to the periphery of the crushing power shaft 102 through screws. The same number of fixed knife holders 104 as the rotating crushing knives 103 are fixedly connected between the inner walls of the main body outer box 101. Fixed crushing knives 105 are press-connected to the fixed knife holders 104 through pressing plates.

[0021] By adopting the above technical solution, the belt pulley 106 can be driven to rotate by an external power motor, and then the crushing power shaft 102 and the rotating crushing knives 103 are driven to rotate. After the rotating crushing knives 103 are engaged with the fixed crushing knives 105, the raw materials are crushed. The crushed raw materials are filtered by the side arc screen 3 and the bottom filter screen 6, realizing the crushing and filtering operation of plastics.

[0022] In this embodiment, during use, the pulley 106 needs to be connected to the output pulley on the external power motor through a V-belt, so as to achieve power transmission, and then drive the crushing power shaft 102 and the rotary crushing knife 103 to rotate for crushing operations.

[0023] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent replacements or changes, shall be covered by the protection scope of the present invention.

Claims

1. A plastic crusher composed of multiple screening meshes, comprising a crusher main body (1) and a bottom filtering screen (6) arranged at the bottom of the crusher main body (1), characterized in that: The crusher main body (1) is composed of an outer main body case (101), a crushing power shaft (102), a rotary crushing knife (103), a fixed knife holder (104), a fixed crushing knife (105) and a belt pulley (106). The outer main body case (101) is arranged on the periphery of the crusher main body (1), and a feed inlet is formed at the top of the crusher main body (1). A rotating outer shell plate (2) is connected by a hinge to one side wall of the outer main body case (101). A plurality of vertically arranged side support rib plates (5) are fixedly arranged at equal intervals on the rotating outer shell plate (2). A side arc-shaped screen (3) is connected to the side support rib plates (5) by brackets or screws. The bottom filter screen (6) is installed between two fixed knife holders (104) at the bottom by brackets or screws, and the bottom filter screen (6) is of an arc structure.

2. The plastic crusher composed of multiple sieves according to claim 1, characterized in that: The top of the side arc-shaped screen (3) is fixedly connected to the side support rib plates (5). An outer shell locking member (7) is hinged to the side wall of the outer main body case (101) of the crusher main body (1). The outer shell locking member (7) includes a locking stud and a compression nut. The outer main body case (101) and the rotating outer shell plate (2) are connected by the outer shell locking member (7).

3. The plastic crusher composed of multiple sieve meshes according to claim 2, wherein: The crushing power shaft (102) is rotatably arranged inside the outer main body case (101) through bearings. One end of the crushing power shaft (102) passes through the outer main body case (101) and is connected to the belt pulley (106) by a key. One end of the crushing power shaft (102) passes through the outer main body case (101) and is fixedly connected to a flywheel.

4. A plastic crusher composed of multiple sieve meshes according to claim 3, characterized in that: A plurality of groups of rotary crushing knives (103) are press-connected to the periphery of the crushing power shaft (102) by screws. The same number of fixed knife holders (104) as the rotary crushing knives (103) are fixedly connected between the inner walls of the outer main body case (101). Fixed crushing knives (105) are press-connected to the fixed knife holders (104) by pressing plates.

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