A screening device for producing pulp molded products

Abstract

The utility model relates to the technical field of pulp molded products, and in particular to a screening device for pulp molded product production, comprising a screening support frame, on which a screening box is movably provided; a screening frame is movably provided inside the screening box, and a screening mesh plate is movably provided at the bottom of the screening frame, the screening mesh plate is rotatably provided inside the screening frame via a rotating shaft, and a first waste cleaning cylinder and a second waste cleaning cylinder are symmetrically provided on the left inner wall of the screening frame, and the first waste cleaning cylinder and the second waste cleaning cylinder are both rotatably provided on the inner wall of the screening frame. The screening device for pulp molded product production of the utility model can automatically remove the impurities produced by screening from the screening mesh plate after a certain amount of impurities accumulate on the screening mesh plate, thereby improving the screening efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of pulp molded products, in particular to a screening device for producing pulp molded products. Background Art

[0002] Paper-plastic molded pulp is a three-dimensional pulping technology that uses waste paper as raw material and shapes paper products of a certain shape on a molding machine using special molds. Pulp molded products are solid containers used to contain and limit the packaged objects, serving the circulation, storage and transportation of goods, that is, they are mainly used in the transportation packaging of goods.

[0003] The production process of paper-plastic molded products generally includes the steps of pulping, screening, slurry mixing and molding. Existing screening devices, such as the utility model patent with application number: 202122546174.6 - a pulp vibrating frame screen, during the screening process, the impurities screened out need to be manually cleaned, resulting in low screening efficiency. Utility Model Content

[0004] Purpose of the utility model: The utility model provides a screening device for pulp molded product production. After a certain amount of impurities accumulate on the screening mesh plate, the impurities produced by screening can be automatically removed from the screening mesh plate, thereby improving the screening efficiency.

[0005] In order to achieve the above object, the technical solution of the utility model is as follows:

[0006] A screening device for pulp molded product production includes a screening support frame, on which a screening box is movably arranged;

[0007] A screening frame is movably provided inside the screening box, and a screening mesh plate is movably provided at the bottom of the screening frame. The screening mesh plate is rotatably arranged inside the screening frame through a rotating shaft, and a first waste cleaning cylinder and a second waste cleaning cylinder are symmetrically provided on the left inner wall of the screening frame. The first waste cleaning cylinder and the second waste cleaning cylinder are both rotatably arranged on the inner wall of the screening frame; and the piston rod of the first waste cleaning cylinder and the piston rod of the second waste cleaning cylinder are both hinged on the screening mesh plate.

[0008] As an improvement: a plurality of push cylinders are horizontally arranged on the right side surface of the screening frame, and a push plate is fixed on the piston rod of the push cylinder.

[0009] As an improvement: sliding slots are provided on both the front and rear sides of the screening box, and the screening frame sliding card is arranged inside the sliding slots;

[0010] A push cylinder is horizontally arranged on the right side of the screening box body, and a piston rod of the push cylinder is fixedly connected to the right side surface of the screening box body.

[0011] As an improvement: the screening box is fixed on the screening support frame by a plurality of elastic rubber bands;

[0012] A plurality of vibration motors are arranged on the screening box body, and a cam is fixed on the rotor of the vibration motor.

[0013] As an improvement: a discharge pipe is provided at the bottom of the screening box, a receiving hopper is provided below the discharge pipe, the discharge pipe is located inside the receiving hopper, and a screw conveyor is connected below the receiving hopper.

[0014] In summary, the utility model has the following beneficial effects:

[0015] 1. When a certain amount of impurities accumulate on the screening mesh, stop feeding, push the screening frame to the outside of the screening box through the push cylinder, and under the action of the first and second waste cleaning cylinders, tilt the screening mesh downward at a certain angle so that the impurities accumulated on the screening mesh fall into the external material receiving box. Through the above operation, after a certain amount of impurities accumulate on the screening mesh, the impurities produced by screening can be automatically removed from the screening mesh without manual operation, thereby improving the screening efficiency;

[0016] 2. When the impurities accumulate to a certain extent, the push cylinder can be used to drive the push plate box to move to the left, pushing the impurities to the left side of the screening frame, so that the impurities can quickly fall from the screening mesh when they are removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution in the present practical embodiment, the drawings required for use in the embodiment or the description of the prior art will be briefly introduced below.

[0018] Figure 1 The overall structure of a screening device for pulp molding production is shown in Figure 1. Figure 1 ;

[0019] Figure 2 The overall structure of a screening device for pulp molding production is shown in Figure 1. Figure 2 ;

[0020] Among them: 1. Screening support frame; 2. Screening box; 3. Screening frame; 4. Screening mesh plate; 5. Rotating shaft; 6. First waste cleaning cylinder; 7. Second waste cleaning cylinder; 8. Pushing cylinder; 9. Pushing plate; 10. Sliding slot; 11. Pushing cylinder; 12. Elastic rubber belt; 13. Vibrating motor; 14. Cam; 15. Discharge pipe; 16. Receiving hopper; 17. Screw conveyor. DETAILED DESCRIPTION

[0021] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0022] Please refer to Figure 1-Figure 2 , a screening device for pulp molding product production, comprising a screening support frame 1, on which a screening box 2 is movably provided;

[0023] A screening frame 3 is movably provided inside the screening box 2, and a screening mesh plate 4 is movably provided at the bottom of the screening frame 3. The screening mesh plate 4 is rotatably set inside the screening frame 3 through a rotating shaft 5. A first waste cleaning cylinder 6 and a second waste cleaning cylinder 7 are symmetrically provided on the left inner wall of the screening frame 3. The first waste cleaning cylinder 6 and the second waste cleaning cylinder 7 are both rotatably set on the inner wall of the screening frame 3; and the piston rod of the first waste cleaning cylinder 6 and the piston rod of the second waste cleaning cylinder 7 are both hinged on the screening mesh plate 4.

[0024] A plurality of push cylinders 8 are horizontally arranged on the right side of the screening frame 3, and a push plate 9 is fixed on the piston rod of the push cylinder 8. In this embodiment, when impurities accumulate to a certain extent, the push plate 9 can be driven by the push cylinder 8 to move to the left side, and the impurities can be pushed to the left side of the screening frame 3, so that the impurities can quickly fall from the screening mesh plate 4 when the impurities are removed.

[0025] Sliding slots 10 are provided on both the front and rear sides of the screening box 2, and the screening frame 3 is slidably mounted inside the sliding slots 10; a push cylinder 11 is horizontally provided on the right side of the screening box 2, and the piston rod of the push cylinder 11 is fixedly connected to the right side of the screening box 2. In this embodiment, the push cylinder 11 can be used to push the screening frame 3 out of the screening box 2, so as to clean the impurities on the screening mesh plate 4 to the outside of the screening box 2.

[0026] The screening box 2 is fixed on the screening support frame 1 through a plurality of elastic rubber bands 12, and a plurality of vibration motors 13 are provided on the screening box 2, and a cam 14 is fixed on the rotor of the vibration motor 13. In this embodiment, the vibration motor 13 drives the cam 14 to rotate, so that the screening box 2 generates high-frequency vibration on the screening support frame 1 under the action of the elastic rubber band 12.

[0027] A discharge pipe 15 is provided at the bottom of the screening box 2, a receiving hopper 16 is provided below the discharge pipe 15, the discharge pipe 15 is located inside the receiving hopper 16, and a screw conveyor 17 is connected below the receiving hopper 16. In this embodiment, the discharge pipe 15 is located inside the receiving hopper 16, so that the pulp discharged from the material can smoothly fall into the screw conveyor 17 through the receiving hopper 16 without splashing.

[0028] Working principle: Pulp is injected into the screening frame 3 in the screening box 2, and the vibration motor 13 is started to drive the cam 14 to rotate. Qualified pulp material flows into the receiving hopper 16 through the screening mesh plate 4 and is transported to the next process under the action of the screw conveyor 17.

[0029] When a certain amount of impurities accumulate on the screening mesh plate 4, stop adding materials, push the screening frame 3 to the outside of the screening box 2 by the pushing cylinder 11, and under the action of the first waste cleaning cylinder 6 and the second waste cleaning cylinder 7, tilt the screening mesh plate 4 downward at a certain angle so that the impurities accumulated on the screening mesh plate 4 fall into the inside of the external material receiving box. Through the above operation, after a certain amount of impurities accumulate on the screening mesh plate 4, the impurities produced by screening can be automatically removed from the screening mesh plate 4 without manual operation, thereby improving the screening efficiency.

[0030] Before the screening mesh plate 4 is tilted at a certain angle, the pushing plate can be driven to move to the left by the pushing cylinder 8 to push the impurities to the left side of the screening frame 3, so that when the screening mesh plate 4 is tilted to discharge, the impurities can quickly fall into the inside of the external receiving box.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.

Claims

1. A screening device for pulp molded product production, characterized in that: It comprises a screening support frame, on which a screening box is movably arranged; A screening frame is movably provided inside the screening box, and a screening mesh plate is movably provided at the bottom of the screening frame. The screening mesh plate is rotatably arranged inside the screening frame through a rotating shaft, and a first waste cleaning cylinder and a second waste cleaning cylinder are symmetrically provided on the left inner wall of the screening frame. The first waste cleaning cylinder and the second waste cleaning cylinder are both rotatably arranged on the inner wall of the screening frame; and the piston rod of the first waste cleaning cylinder and the piston rod of the second waste cleaning cylinder are both hinged on the screening mesh plate.

2. The screening device for pulp molded product production according to claim 1, characterized in that: A plurality of push cylinders are horizontally arranged on the right side surface of the screening frame, and a push plate is fixed on the piston rod of the push cylinder.

3. The screening device for pulp molded product production according to claim 1, characterized in that: Sliding slots are provided on both the front and rear sides of the screening box, and the screening frame sliding card is arranged inside the sliding slots; A push cylinder is horizontally arranged on the right side of the screening box body, and a piston rod of the push cylinder is fixedly connected to the right side surface of the screening box body.

4. The screening device for pulp molded product production according to claim 1, characterized in that: The screening box is fixed on the screening support frame by a plurality of elastic rubber bands; A plurality of vibration motors are arranged on the screening box body, and a cam is fixed on the rotor of the vibration motor.

5. The screening device for pulp molded product production according to claim 1, characterized in that: A discharge pipe is provided at the bottom of the screening box body, a receiving hopper is provided below the discharge pipe, the discharge pipe is located inside the receiving hopper, and a screw conveyor is connected below the receiving hopper.

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