Screening device for polyethylene plastic for wires and cables

Abstract

The utility model relates to the technical field of polyethylene, and discloses a screening device for polyethylene plastics for wires and cables, which comprises an equipment box. Through the arrangement of the equipment box, the first cleaning device, the first filtering device and the second filtering device, it is firstly determined that plastic particles need to be filtered out, when third-class filtering is needed, the first filtering device is opened, the plastic particles are poured into the equipment box from the top of the equipment box, and a third baffle pushes large plastic particles to a third collecting box; plastic particles staying on a second filter screen are pushed to a second collecting box by a second baffle, small plastic particles fall to the bottom of the equipment box and are pushed to a first collecting box by a first baffle, and the problems that in the prior art, an existing screening device is often single in screening structure, and due to the fact that the plastic particles are different in size, the plastic particles need to be finely screened, and the screening efficiency is high are solved. The workload is large, the working efficiency is low, and the requirement of later machining cannot be met.

Description

Technical Field

[0001] The utility model belongs to the technical field of polyethylene, and in particular relates to a screening device for polyethylene plastics used for wires and cables. Background Art

[0002] Polyethylene is a thermoplastic resin obtained by polymerization of ethylene monomer. In industry, it also includes copolymers of ethylene and a small amount of a-olefin. Polyethylene is odorless, non-toxic, feels like wax, has excellent low-temperature resistance (the lowest operating temperature can reach -100 to -70°C), and good chemical stability. Because the polymer molecules are connected by carbon-carbon single bonds, they can withstand the corrosion of most acids and alkalis (not resistant to oxidizing acids). They are insoluble in general solvents at room temperature, have low water absorption, and have excellent electrical insulation. The main component of polyethylene plastic is polyethylene, and its raw material ethylene mainly comes from petroleum cracking and decomposition, and is a petrochemical product.

[0003] The problem with the above technology is that in the prior art, the existing screening devices often have a single screening structure. Due to the different sizes of plastic particles, they need to be carefully screened, which not only requires a large workload but also has low work efficiency and cannot meet the needs of later processing. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model provides a screening device for polyethylene plastics for wires and cables, which can overcome the above problems or at least partially solve the above problems.

[0005] The utility model is implemented as follows: a screening device for polyethylene plastics for wires and cables comprises an equipment box, characterized in that a first collecting box is arranged on the left side of the equipment box, a second collecting box is arranged on the front side of the equipment box, a third collecting box is arranged on the front side of the equipment box, the third collecting box is located on the top of the second collecting box, a first discharge port is opened on the left side of the equipment box, a second discharge port is opened on the front side of the equipment box, a third discharge port is opened on the front side of the equipment box, the second discharge port is located at the bottom of the third discharge port, a first cleaning device is installed in the inner cavity of the equipment box, a first filtering device is installed in the inner cavity of the equipment box, and a second filtering device is installed in the inner cavity of the equipment box.

[0006] In order to improve the screening of larger plastic particles, preferably, the first filtering device includes a first filter screen, a rotating shaft, a fixed block and a hydraulic mechanism, the two ends of the rotating shaft are fixedly installed in the inner cavity of the equipment box, the middle part of the fixed block is movably installed on the surface of the rotating shaft, the bottom of the first filter screen is fixedly installed on the top of the fixed block, the top of the first filter screen is installed with a second cleaning device, the top of the hydraulic mechanism is fixedly installed on the bottom of the first filter screen, the bottom of the hydraulic mechanism is fixedly installed on the inner wall of the equipment box, and the bottom of the first filter screen is installed with a support rod, so that filtering can be carried out through the first filter screen.

[0007] In order to improve the screening of medium-sized plastics, preferably, the second filtering device includes a second hydraulic rod, a second transmission rod, a second push rod, a second baffle and a second filter screen, the second filter screen is fixedly installed on the inner cavity of the equipment box, the second filter screen is located at the bottom of the first filter screen, the second baffle is movably installed on the top of the second filter screen, one end of the second push rod is fixedly installed on the rear side of the second baffle, one end of the second transmission rod is fixedly installed on the other end of the second push rod, the other end of the second transmission rod is fixedly installed on the output end of the second hydraulic rod, and the bottom of the second hydraulic rod is fixedly installed on the right side of the equipment box, which can be screened by the second filtering device, and the medium-sized plastic particles stay on the second filter screen and are pushed to the second collection box for collection by the second baffle.

[0008] In order to improve the collection of smaller plastic particles, preferably, the first cleaning device includes a first hydraulic rod, a first transmission rod, a first push rod and a first baffle, the first baffle is movably mounted at the bottom of the inner cavity of the equipment box, one end of the first push rod is fixedly mounted on the rear side of the first baffle, one end of the first transmission rod is fixedly mounted on the other end of the first push rod, the other end of the first transmission rod is fixedly mounted on the output end of the first hydraulic rod, and the bottom of the first hydraulic rod is fixedly mounted on the rear side of the equipment box, and the first hydraulic rod can drive the first baffle to push smaller particles to the first collection box for collection.

[0009] In order to improve the collection of larger plastic particles, preferably, the second cleaning device includes a third hydraulic rod, a third transmission rod, a third push rod and a third baffle, the third baffle is movably mounted on the top of the first filter, one end of the third push rod is fixedly mounted on the rear side of the third baffle, the third transmission rod is fixedly mounted on the other end of the third push rod, the other end of the third transmission rod is fixedly mounted on the output end of the third hydraulic rod, and the bottom of the third hydraulic rod is fixedly mounted on the right side of the equipment box. The third hydraulic rod can be driven by the third baffle, and the third baffle can push the larger plastic particles to the third collection for collection.

[0010] In order to improve the transmission of the first filter screen, preferably, the hydraulic mechanism includes a first connecting block, a second connecting block, a first connecting shaft, a second connecting shaft and a fourth hydraulic rod, the bottom of the first connecting block is fixedly installed on the bottom of the first filter screen, the two ends of the first connecting shaft are movably installed in the inner cavity of the first connecting block, the bottom of the second connecting block is fixedly installed on the inner wall of the equipment box, the two ends of the second connecting shaft are movably installed in the inner cavity of the second connecting block, the output end of the fourth hydraulic rod is fixedly installed on the surface of the first connecting shaft, and the bottom of the fourth hydraulic rod is fixedly installed on the surface of the second connecting shaft. The first filter screen can be rotated up and down through the output of the hydraulic mechanism.

[0011] In order to improve the support for the first filter screen, preferably, a slot is opened on the left side of the equipment box, the support rod is movably installed in the inner cavity of the slot, the support rod is installed at the bottom of the first filter screen, and can be fixed to the equipment box body through the support rod, and the first filter screen is installed on the top of the support rod, which effectively reduces the pressure of the fourth hydraulic rod.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model provides an equipment box, a first cleaning device, a first filtering device and a second filtering device. Firstly, it is determined how many grades of plastic particles need to be filtered out. When three grades need to be filtered out, the fourth hydraulic rod is opened to lift the first filter screen, the support rod is installed at the bottom of the first filter screen through the slot, and the plastic particles are poured in from the top of the equipment box. The larger particles stay on the first filter screen. When a certain amount of larger particles are on the first filter screen, the third hydraulic rod drives the third baffle to push the larger plastic particles to the third collecting box, and the medium plastic particles stay on the second filter screen. The plastic particles staying on the second filter screen are pushed to the second collecting box by the second baffle, and the smaller plastic particles fall to the bottom of the equipment box and are pushed to the first collecting box by the first baffle. The utility model solves the problem in the prior art that the existing screening device often has a single screening structure, and due to the different sizes of plastic particles, they need to be carefully screened, which not only has a large workload, but also has low work efficiency and cannot meet the needs of later processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure provided by an embodiment of the utility model;

[0015] Figure 2 It is a schematic diagram of the three-dimensional structure of the first filtering device provided in the embodiment of the utility model;

[0016] Figure 3 It is a three-dimensional structural diagram of the hydraulic mechanism provided by the embodiment of the utility model;

[0017] Figure 4It is a schematic diagram of the three-dimensional structure of the second filtering device provided in the embodiment of the utility model.

[0018] In the figure: 1, equipment box; 2, first collection box; 3, second collection box; 4, third collection box; 5, first discharge port; 6, second discharge port; 7, third discharge port; 8, first cleaning device; 801, first hydraulic rod; 802, first transmission rod; 803, first push rod; 804, first baffle; 9, first filtering device; 901, first filter screen; 902, rotating shaft; 903, fixing block; 904, hydraulic mechanism; 9041, first connecting block; 9042, second Connecting block; 9043, first connecting shaft; 9044, second connecting shaft; 9045, fourth hydraulic rod; 10, second filtering device; 1001, second hydraulic rod; 1002, second transmission rod; 1003, second push rod; 1004, second baffle; 1005, second filtering net; 11, second cleaning device; 1101, third hydraulic rod; 1102, third transmission rod; 1103, third push rod; 1104, third baffle; 12, supporting rod; 13, notch. DETAILED DESCRIPTION

[0019] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0020] The structure of the utility model is described in detail below in conjunction with the accompanying drawings.

[0021] like Figures 1 to 4As shown, a screening device for polyethylene plastic for wires and cables provided by an embodiment of the utility model comprises an equipment box 1, a first collecting box 2 is arranged on the left side of the equipment box 1, a second collecting box 3 is arranged on the front side of the equipment box 1, a third collecting box 4 is arranged on the front side of the equipment box 1, the third collecting box 4 is located on the top of the second collecting box 3, a first discharge port 5 is opened on the left side of the equipment box 1, a second discharge port 6 is opened on the front side of the equipment box 1, a third discharge port 7 is opened on the front side of the equipment box 1, the second discharge port 6 is located at the bottom of the third discharge port 7, a first cleaning device 8 is installed in the inner cavity of the equipment box 1, a first filtering device 9 is installed in the inner cavity of the equipment box 1, and a second filtering device 10 is installed in the inner cavity of the equipment box 1. In order to improve the screening of larger plastic particles, The first filter device 9 includes a first filter screen 901, a rotating shaft 902, a fixed block 903 and a hydraulic mechanism 904. Both ends of the rotating shaft 902 are fixedly installed in the inner cavity of the equipment box 1, and the middle part of the fixed block 903 is movably installed on the surface of the rotating shaft 902. The bottom of the first filter screen 901 is fixedly installed on the top of the fixed block 903. The top of the first filter screen 901 is installed with a second cleaning device 11. The top of the hydraulic mechanism 904 is fixedly installed on the bottom of the first filter screen 901. The bottom of the hydraulic mechanism 904 is fixedly installed on the inner wall of the equipment box 1. The bottom of the first filter screen 901 is installed with a support rod 12, which can be filtered through the first filter screen 901. In order to improve the screening of medium plastics, the second filter device 10 includes a second hydraulic rod 1001, a second transmission rod 1002, a second push rod 1003, a second baffle 1004 and a second filter 1005, the second filter 1005 is fixedly installed in the inner cavity of the equipment box 1, the second filter 1005 is located at the bottom of the first filter 901, the second baffle 1004 is movably installed on the top of the second filter 1005, one end of the second push rod 1003 is fixedly installed on the rear side of the second baffle 1004, one end of the second transmission rod 1002 is fixedly installed on the other end of the second push rod 1003, the other end of the second transmission rod 1002 is fixedly installed on the output end of the second hydraulic rod 1001, and the bottom of the second hydraulic rod 1001 is fixedly installed on the right side of the equipment box 1, which can be opened by the second push rod 1003. The second filtering device 10 performs screening, and the medium plastic particles stay on the second filter screen 1005 and are pushed to the second collection box 3 by the second baffle 1004 for collection. In order to improve the collection of smaller plastic particles, the first cleaning device 8 includes a first hydraulic rod 801, a first transmission rod 802, a first push rod 803 and a first baffle 804. The first baffle 804 is movably installed at the bottom of the inner cavity of the equipment box 1, one end of the first push rod 803 is fixedly installed at the rear side of the first baffle 804, one end of the first transmission rod 802 is fixedly installed at the other end of the first push rod 803, and the other end of the first transmission rod 802 is fixedly installed at the output end of the first hydraulic rod 801. The bottom of the first hydraulic rod 801 is fixedly installed at the rear side of the equipment box 1.The first hydraulic rod 801 can drive the first baffle 804 to push smaller particles to the first collection box 2 for collection. In order to improve the collection of larger plastic particles, the second cleaning device 11 includes a third hydraulic rod 1101, a third transmission rod 1102, a third push rod 1103 and a third baffle 1104. The third baffle 1104 is movably installed on the top of the first filter screen 901, one end of the third push rod 1103 is fixedly installed on the rear side of the third baffle 1104, and the third transmission rod 1102 is fixedly installed on the third push rod The other end of the third transmission rod 1102 is fixedly installed on the output end of the third hydraulic rod 1101. The bottom of the third hydraulic rod 1101 is fixedly installed on the right side of the equipment box 1. The third hydraulic rod 1101 can be used to carry a third baffle 1104. The third baffle 1104 pushes larger plastic particles to the third collection for collection. In order to improve the transmission of the first filter screen 901, the hydraulic mechanism 904 includes a first connecting block 9041, a second connecting block 9042, a first connecting shaft 9043, and a third connecting shaft 9044. The second connecting shaft 9044 and the fourth hydraulic rod 9045, the bottom of the first connection is fixedly installed on the bottom of the first filter screen 901, the two ends of the first connecting shaft 9043 are movably installed in the inner cavity of the first connecting block 9041, the bottom of the second connecting block 9042 is fixedly installed on the inner wall of the equipment box 1, the two ends of the second connecting shaft 9044 are movably installed in the inner cavity of the second connecting block 9042, the output end of the fourth hydraulic rod 9045 is fixedly installed on the surface of the first connecting shaft 9043, and the bottom of the fourth hydraulic rod 9045 is fixedly installed On the surface of the second connecting shaft 9044, the first filter 901 can be rotated up and down through the output of the hydraulic mechanism 904. In order to improve the support for the first filter 901, a notch 13 is opened on the left side of the equipment box 1. The support rod 12 is movably installed in the inner cavity of the notch 13. The support rod 12 is installed at the bottom of the first filter 901 and can be fixed to the equipment box 1 through the support rod 12. The first filter 901 is installed on the top of the support rod 12, which effectively reduces the pressure of the fourth hydraulic rod 9045.

[0022] The working principle of this utility model:

[0023] When in use, first determine how many grades of plastic particles need to be screened. When three grades need to be screened, open the first filtering device 9, the fourth hydraulic rod 9045 pushes up the first filter screen 901, and the support rod 12 is installed at the bottom of the first filter screen 901 through the notch 13, and then the plastic particles are poured from the top of the equipment box 1. The larger plastic particles stay on the first filter screen 901, and the third hydraulic rod 1101 is opened. The third hydraulic rod 1101 drives the third transmission rod 1102, and the third transmission rod 1102 drives the third push rod 1103. The third push rod 1103 drives the third baffle 1104 to push the larger plastic particles to the third collection box 4, and the medium plastic particles stay in the second On the filter screen 1005, open the second hydraulic rod 1001, the second hydraulic rod 1001 drives the second transmission rod 1002, the second transmission rod 1002 drives the second push rod 1003, the second push rod 1003 drives the second baffle 1004 to push the medium plastic particles to the second collection box 3, and the smaller plastic particles fall to the bottom of the inner cavity of the equipment box 1. Open the first hydraulic rod 801, the first hydraulic rod 801 drives the first transmission rod 802, the first transmission rod 802 drives the first push rod 803, the first push rod 803 drives the first baffle 804 to push the smaller plastic particles to the first collection box 2 for collection. When only the second class needs to be screened, there is no need to open the first filtering device 9.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0025] The above description is only a preferred embodiment of the utility model, and does not constitute any form of limitation to the utility model. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent will not depart from the scope of the technical solution of the utility model.

Claims

1. A screening device for polyethylene plastics for electric wires and cables, comprising an equipment box (1), characterized in that: A first collecting box (2) is arranged on the left side of the equipment box (1), a second collecting box (3) is arranged on the front side of the equipment box (1), a third collecting box (4) is arranged on the front side of the equipment box (1), and the third collecting box (4) is located on the top of the second collecting box (3). A first discharge port (5) is opened on the left side of the equipment box (1), a second discharge port (6) is opened on the front side of the equipment box (1), a third discharge port (7) is opened on the front side of the equipment box (1), and the second discharge port (6) is located at the bottom of the third discharge port (7). A first cleaning device (8) is installed in the inner cavity of the equipment box (1), a first filtering device (9) is installed in the inner cavity of the equipment box (1), and a second filtering device (10) is installed in the inner cavity of the equipment box (1).

2. A screening device for polyethylene plastics for wires and cables as claimed in claim 1, characterized in that: The first filtering device (9) comprises a first filter screen (901), a rotating shaft (902), a fixed block (903) and a hydraulic mechanism (904); the two ends of the rotating shaft (902) are fixedly mounted on the inner cavity of the equipment box (1); the middle part of the fixed block (903) is movably mounted on the surface of the rotating shaft (902); the bottom of the first filter screen (901) is fixedly mounted on the top of the fixed block (903); the top of the first filter screen (901) is installed with a second cleaning device (11); the top of the hydraulic mechanism (904) is fixedly mounted on the bottom of the first filter screen (901); the bottom of the hydraulic mechanism (904) is fixedly mounted on the inner wall of the equipment box (1); and the bottom of the first filter screen (901) is installed with a support rod (12).

3. A screening device for polyethylene plastics for electric wires and cables as claimed in claim 2, characterized in that: The second filtering device (10) comprises a second hydraulic rod (1001), a second transmission rod (1002), a second push rod (1003), a second baffle (1004) and a second filter screen (1005); the second filter screen (1005) is fixedly mounted in the inner cavity of the equipment box (1); the second filter screen (1005) is located at the bottom of the first filter screen (901); the second baffle (1004) is movably mounted on the top of the second filter screen (1005); one end of the second push rod (1003) is fixedly mounted on the rear side of the second baffle (1004); one end of the second transmission rod (1002) is fixedly mounted on the other end of the second push rod (1003); the other end of the second transmission rod (1002) is fixedly mounted on the output end of the second hydraulic rod (1001); and the bottom of the second hydraulic rod (1001) is fixedly mounted on the right side of the equipment box (1).

4. A screening device for polyethylene plastics for wires and cables as claimed in claim 1, characterized in that: The first cleaning device (8) comprises a first hydraulic rod (801), a first transmission rod (802), a first push rod (803) and a first baffle (804); the first baffle (804) is movably mounted at the bottom of the inner cavity of the equipment box (1); one end of the first push rod (803) is fixedly mounted at the rear side of the first baffle (804); one end of the first transmission rod (802) is fixedly mounted at the other end of the first push rod (803); the other end of the first transmission rod (802) is fixedly mounted at the output end of the first hydraulic rod (801); and the bottom of the first hydraulic rod (801) is fixedly mounted at the rear side of the equipment box (1).

5. A screening device for polyethylene plastics for electric wires and cables as claimed in claim 2, characterized in that: The second cleaning device (11) comprises a third hydraulic rod (1101), a third transmission rod (1102), a third push rod (1103) and a third baffle (1104); the third baffle (1104) is movably mounted on the top of the first filter screen (901); one end of the third push rod (1103) is fixedly mounted on the rear side of the third baffle (1104); the third transmission rod (1102) is fixedly mounted on the other end of the third push rod (1103); the other end of the third transmission rod (1102) is fixedly mounted on the output end of the third hydraulic rod (1101); and the bottom of the third hydraulic rod (1101) is fixedly mounted on the right side of the equipment box (1).

6. A screening device for polyethylene plastics for electric wires and cables as claimed in claim 2, characterized in that: The hydraulic mechanism (904) comprises a first connecting block (9041), a second connecting block (9042), a first connecting shaft (9043), a second connecting shaft (9044) and a fourth hydraulic rod (9045); the bottom of the first connecting block (9041) is fixedly mounted on the bottom of the first filter screen (901); the two ends of the first connecting shaft (9043) are movably mounted on the inner cavity of the first connecting block (9041); the bottom of the second connecting block (9042) is fixedly mounted on the inner wall of the equipment box (1); the two ends of the second connecting shaft (9044) are movably mounted on the inner cavity of the second connecting block (9042); the output end of the fourth hydraulic rod (9045) is fixedly mounted on the surface of the first connecting shaft (9043); and the bottom of the fourth hydraulic rod (9045) is fixedly mounted on the surface of the second connecting shaft (9044).

7. A screening device for polyethylene plastics for electric wires and cables as claimed in claim 2, characterized in that: A notch (13) is provided on the left side of the equipment box (1), and the support rod (12) is movably installed in the inner cavity of the notch (13), and the support rod (12) is installed at the bottom of the first filter screen (901).

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