Degradable plastic particle screening structure

Abstract

The utility model relates to a degradable plastic particle screening structure which is characterized by comprising a screening frame, a screening net frame, a rodless air cylinder and a connecting rod. The rodless air cylinder drives the screening frame to swing in the vertical plane, the screening net frame on the screening frame is obliquely arranged on the screening frame, the oscillation effect of the screening net frame can be guaranteed within the swing amplitude of the screening frame, and the screening efficiency of degradable plastic particles is improved; in addition, a stacked screening net frame structure is adopted, the degradable plastic particles with different particle sizes can be screened out, and by arranging a check curtain structure, the plastic particles can be prevented from splashing out of the screening net frame when falling into the next layer of screening net frame.

Description

Technical Field

[0001] This utility model relates to the field of biodegradable plastic screening technology, and in particular to a biodegradable plastic particle screening structure. Background Technology

[0002] With the continuous advancement of technology, the application of plastic products is becoming increasingly widespread. Plastic granules, as the raw material for manufacturing plastic products, refer to granular plastics, which are generally classified into more than 200 types and further subdivided into thousands of types. During the processing of plastic granules, plastic granules of different sizes will be mixed in. Therefore, it is necessary to use screening devices to screen plastic granules of different sizes, otherwise it will affect the quality of plastic granule products. However, most existing screening devices directly screen plastic granules through multiple screening plates. Some plastic granules are prone to accumulating and clogging on the top of the screening plates during screening, which affects the use effect of the screening plates. Moreover, most existing screening plates are fixed inside the screening device, and some plastic granules may get stuck inside the screening plates, thus affecting the screening effect of the screening plates. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a biodegradable plastic particle screening structure that can solve the problems of inconvenient installation and complex oscillating screening structure of general biodegradable plastic particle screening structures.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a biodegradable plastic particle screening structure, the innovation of which is: including a screening frame, a screening mesh frame, a rodless cylinder and a connecting rod;

[0005] The screening frame has a rectangular frame structure. A fixed shaft is horizontally installed at the bottom of the screening frame, and the axis of the fixed shaft is parallel to the bottom of the screening frame. Several C-shaped buckles are installed on the side wall of the screening frame along the vertical direction.

[0006] The screening frame has several frames, and each screening frame has a different aperture size; a pin head is inclinedly provided on both sides of the screening frame in the width direction, and the pin head inclinedly provided on the side of the screening frame is embedded in the C-shaped buckle on the side wall of the screening frame, so as to realize the inclined installation of the screening frame on the screening frame.

[0007] The rodless cylinder is located below the screening frame, and a base plate is horizontally mounted on the output end of the rodless cylinder, with a pair of bearing seats on the base plate; the fixed shaft at the bottom of the screening frame is mounted on the bearing seats on the base plate of the output end of the rodless cylinder via a slewing bearing; a fixed column is provided at one end of the rodless cylinder.

[0008] One end of the connecting rod is hinged to the fixed column, and the other end of the connecting rod is hinged to the outer wall of the screening frame. The screening frame is driven by a rodless cylinder to swing around a fixed axis in a vertical plane, thereby causing the screening mesh frame installed on the screening frame to shake in a vertical plane, and screening biodegradable plastic particles of different sizes in the screening mesh frame.

[0009] Furthermore, the pin head is provided with a limiting pin and a hinge shaft; a cavity for accommodating the limiting pin is provided near the bottom end of the pin head, and a hinge hole is horizontally provided on the pin head located at the cavity position, the hinge shaft is disposed in the hinge hole, and one end of the hinge shaft extends out of the pin head into the cavity accommodating the limiting pin; the limiting pin is disposed in the cavity of the pin head and connected to the hinge shaft and rotates with the hinge shaft; the center of gravity of the limiting pin is located obliquely above the hinge shaft and biased towards the outside of the C-shaped buckle; the weight of the limiting pin rotates the end of the limiting pin out of the cavity and supports it on the lower surface of the C-shaped buckle, and the bottom end of the limiting pin presses against the side wall of the cavity for limiting when the top end of the limiting pin rotates out of the cavity.

[0010] Furthermore, the screen frame with larger apertures is located above the screen frame with smaller apertures, and the edge of the screen frame is provided with a baffle in the vertical direction.

[0011] The advantages of this utility model are:

[0012] 1) In this utility model, the screening frame is driven to swing in a vertical plane by a rodless cylinder, and the screening mesh frame on the screening frame is set at an inclination. Within the swing range of the screening frame, the oscillation effect of the screening mesh frame can be guaranteed, thereby improving the screening efficiency of biodegradable plastic particles. In addition, the layered screening mesh frame structure can screen out biodegradable plastic particles of different sizes. By setting a baffle structure, it can prevent plastic particles from splashing out of the screening mesh frame when falling into the next layer of screening mesh frame. Attached Figure Description

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0014] Figure 1 This is a schematic diagram of a biodegradable plastic particle screening structure according to the present invention.

[0015] Figure 2 This is a schematic diagram of another state of the biodegradable plastic particle screening structure of this utility model. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of 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 some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0018] like Figure 1 Figure 2 The biodegradable plastic particle screening structure shown includes a screening frame 1, a screening mesh frame 2, a rodless cylinder 3, and a connecting rod 4.

[0019] In this embodiment, the screening frame 1 has a rectangular frame structure. A fixed shaft 11 is horizontally arranged at the bottom end of the screening frame 1, and the axial direction of the fixed shaft 11 is parallel to the bottom end of the screening frame 1. Several C-shaped buckles 12 are arranged on the side wall of the screening frame 1 along the vertical direction.

[0020] In this embodiment, there are several screening frames 2, and the aperture size of each screening frame 2 is different; a pin head 5 is inclinedly provided on both sides of the screening frame 2 in the width direction, and the pin head 5 inclined on the side of the screening frame 2 is embedded in the C-shaped buckle 12 on the side wall of the screening frame 1, so as to realize the inclined installation of the screening frame 2 on the screening frame 1.

[0021] In this embodiment, the rodless cylinder 3 is located below the screening frame 1, and a base plate is horizontally arranged on the output end of the rodless cylinder 3, and a pair of bearing seats are arranged on the base plate; the fixed shaft 11 at the bottom of the screening frame 1 is mounted on the bearing seats on the output end base plate of the rodless cylinder 3 through a rotary bearing; a fixed column 6 is arranged at one end of the rodless cylinder 3.

[0022] In this embodiment, one end of the connecting rod 4 is hinged to the fixed column 6, and the other end of the connecting rod 4 is hinged to the outer wall of the screening frame 1. The screening frame 1 is driven by the rodless cylinder 3 to swing around the fixed axis 11 in the vertical plane, thereby causing the screening mesh frame 2 installed on the screening frame 1 to shake in the vertical plane, and screening biodegradable plastic particles of different sizes in the screening mesh frame 2.

[0023] In this embodiment, the pin head 5 is provided with a limiting pin piece 51 and a hinge shaft 52; a cavity for accommodating the limiting pin piece 51 is provided near the bottom end of the pin head 5, and a hinge hole is horizontally provided on the pin head 5 located at the cavity position. The hinge shaft 52 is disposed in the hinge hole, and one end of the hinge shaft 52 extends out of the pin head 5 into the cavity accommodating the limiting pin piece 51; the limiting pin piece 51 is disposed in the cavity on the pin head 5 and connected to the hinge shaft 52 and rotates with the hinge shaft 52; the center of gravity of the limiting pin piece 51 is located obliquely above the hinge shaft 52 and biased towards the outside of the C-shaped buckle 12; the weight of the limiting pin piece 51 rotates the end of the limiting pin piece 51 out of the cavity and supports it on the lower surface of the C-shaped buckle 12, and the bottom end of the limiting pin piece 51 presses against the side wall of the cavity for limiting when the top end of the limiting pin piece 51 rotates out of the cavity.

[0024] In this embodiment, the screen frame 2 with larger apertures is located above the screen frame 2 with smaller apertures, and the edge of the screen frame 2 is provided with a baffle in the vertical direction.

[0025] The working principle of this utility model is as follows: the screening frame is driven to swing in a vertical plane by a rodless cylinder, and the screening mesh frame on the screening frame is set at an inclination. Within the swing range of the screening frame, the oscillation effect of the screening mesh frame can be guaranteed, thereby improving the screening efficiency of biodegradable plastic particles. In addition, the layered screening mesh frame structure can screen out biodegradable plastic particles of different sizes. By setting a baffle structure, it can prevent plastic particles from splashing out of the screening mesh frame when falling into the next layer of screening mesh frame.

[0026] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A degradable plastic particle sizing structure, characterized by: It comprises a screening frame, a screening net frame, a rodless cylinder and a connecting rod. The screening frame is in a rectangular frame structure, and a fixed shaft is horizontally arranged at the bottom end of the screening frame, and the axis direction of the fixed shaft is parallel to the bottom end of the screening frame; a plurality of C-shaped buckles are arranged on the side wall of the screening frame along the vertical direction. The screening net frame has a plurality of screening net frames with different aperture sizes; the two side edges of the screening net frame are obliquely provided with a plug head, and the plug head obliquely arranged on the side edge of the screening net frame is embedded in the C-shaped buckle of the side wall of the screening frame, so as to realize the oblique installation of the screening net frame on the screening frame. The rodless cylinder is arranged below the screening frame, and a bottom plate is horizontally arranged on the output end of the rodless cylinder, and a pair of bearing seats are arranged on the bottom plate; the fixed shaft at the bottom end of the screening frame is installed on the bearing seat on the bottom plate of the output end of the rodless cylinder through a rotary bearing; one end of the rodless cylinder is provided with a fixed column; One end of the connecting rod is hinged to the fixed column, and the other end of the connecting rod is hinged to the outer side wall of the screening frame; the screening frame is driven to swing around the fixed shaft in the vertical plane by the rodless cylinder, so as to drive the screening net frame installed on the screening frame to swing in the vertical plane, and the degradable plastic particles with different particle sizes in the screening net frame are screened.

2. The degradable plastic particle screening structure according to claim 1, characterized in that: A limiting pin and a hinge shaft are arranged on the plug head; a recess accommodating the limiting pin is arranged at a position close to the bottom end of the plug head, and a hinge hole is horizontally arranged on the plug head at the position of the recess, the hinge shaft is arranged in the hinge hole, and one end of the hinge shaft extends out of the plug head into the recess accommodating the limiting pin; the limiting pin is arranged in the recess on the plug head and connected to the hinge shaft to rotate with the hinge shaft; the center of gravity of the limiting pin is located obliquely above the hinge shaft and deviates to the outside of the C-shaped buckle; the end of the limiting pin is rotated out of the recess and supported on the lower surface of the C-shaped buckle by the gravity of the limiting pin, and the bottom end of the limiting pin is abutted against the side wall of the recess when the top end of the limiting pin is rotated out of the recess.

3. The degradable plastic particle screening structure of claim 1, wherein: The screening net frame with a larger aperture is located above the screening net frame with a smaller aperture, and a blocking curtain is arranged at the edge of the screening net frame in the vertical direction.

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