Screening device for preparing mixture

Abstract

The screening device comprises a bearing support and a driving motor, the top of the bearing support is fixedly provided with a pre-screening box body, the top of the pre-screening box body is fixedly connected with a feeding hopper, the side edge of the pre-screening box body is provided with a limiting groove, and the pre-screening box body is fixedly connected with the feeding hopper. And a sealing plate is movably mounted on the inner surface of the limiting groove. According to the screening device for preparing the mixture, through the arranged primary screening net, when a worker pours to-be-treated raw materials into the pre-screening box body through a feeding hopper, the large-size materials in the raw materials can be automatically removed; then, the preliminarily filtered raw materials automatically fall to the top of a fine screen plate, and materials with small sizes in the raw materials are removed through cooperation of the fine screen plate, so that the screening effect of the device is greatly improved; and the situation that the follow-up mixing operation of workers is interfered due to the fact that unqualified products still exist in the screened materials is avoided.

Description

Technical Field

[0001] This utility model relates to the field of screening devices, specifically a screening device for preparing mixtures. Background Technology

[0002] Mixtures generally refer to mixtures of one or more polymers with other components such as fillers, plasticizers, catalysts, and colorants. In the preparation of mixtures, screening devices are needed to screen the raw materials, which facilitates the subsequent mixing operations of the workers and also improves the quality of the mixtures.

[0003] However, the current screening devices still have some shortcomings. For example, the existing screening devices can only screen out materials that are too large or too small, resulting in unqualified products remaining in the screened materials. This causes some interference to the subsequent mixing operations of the staff, and thus there are certain defects in their use.

[0004] Therefore, there is an urgent need to improve this shortcoming. This utility model studies and improves the existing structure to provide a screening device for the preparation of mixtures. Utility Model Content

[0005] The purpose of this invention is to provide a screening device for preparing mixtures, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a screening device for preparing a mixture, comprising a support frame and a drive motor. A pre-screening box is fixedly installed on the top of the support frame, and a feeding hopper is fixedly connected to the top of the pre-screening box. A limiting groove is formed on the side of the pre-screening box, and a sealing plate is movably installed on the inner surface of the limiting groove. A handle is fixedly installed on the outer surface of the sealing plate. A primary screen is fixedly installed on the inner surface of the pre-screening box. The drive motor is installed on the outside of the support frame, and a connecting assembly is installed on the output shaft of the drive motor through a coupling. A fine screen plate is attached to the top of the connecting assembly, and T-shaped sliders are symmetrically installed on the front and rear sides of the fine screen plate. A discharge guide plate is fixedly installed on the side of the support frame, and an impurity collection mechanism is slidably connected to the inner bottom surface of the support frame.

[0007] Furthermore, the internal dimensions of the limiting groove perfectly match the external dimensions of the sealing plate, and the sealing plate forms a locking structure with the pre-screening box through the limiting groove.

[0008] Furthermore, the connecting assembly includes a connecting rod, a connecting shaft, and a top-feeding protrusion, with the connecting shaft fixedly installed on the inner surface of the connecting rod and the top-feeding protrusions fixedly installed at equal intervals in a ring on the outer surface of the connecting rod.

[0009] Furthermore, the outer surface of the connecting shaft is fixedly connected to the inner surface of the connecting rod, and the end of the connecting shaft is rotatably connected to the interior of the bearing bracket, and the connecting rod forms a rotating structure with the bearing bracket through the connecting shaft.

[0010] Furthermore, the side of the fine sieve plate is fixedly connected to the inner side of the T-shaped slider, and the fine sieve plate forms a sliding structure with the support bracket through the T-shaped slider.

[0011] Furthermore, the end of the feeding guide plate is fixedly connected to the side of the bearing bracket, and the feeding guide plate and the bearing bracket form a fixed structure, and the feeding guide plate is inclined outward.

[0012] Furthermore, the impurity collection mechanism includes an impurity collection box, guide slides, and a handle, with guide slides symmetrically installed on the bottom of the impurity collection box and a handle fixedly installed on the outside of the impurity collection box.

[0013] Furthermore, the bottom of the impurity collection box is fixedly connected to the top of the guide slide, and the impurity collection box forms a sliding structure with the support bracket through the guide slide.

[0014] This invention provides a screening device for preparing mixtures, which has the following advantages:

[0015] 1. This utility model, through the setting of a primary screening screen, enables the automatic removal of oversized materials from the raw materials when the workers pour them into the pre-screening box through the feeding hopper. Then, the pre-filtered raw materials automatically fall to the top of the fine screen plate, and the fine screen plate, in conjunction with the materials, removes undersized materials. This greatly improves the screening effect of the device and avoids the situation where unqualified products remain in the screened materials, which would interfere with the subsequent mixing operations of the workers.

[0016] 2. This utility model uses a connecting shaft to enable the drive motor to rotate the connecting roller inside the support bracket during operation, thereby causing the top material protrusion to rotate synchronously inside the support bracket. Then, through the guide sliding of the T-shaped slider, the connecting assembly can drive the fine screen plate to move up and down rapidly along the inner surface of the support bracket when rotating, thereby improving the screening efficiency of the fine screen plate. Attached Figure Description

[0017] Figure 1 This is a frontal perspective three-dimensional structural diagram of a screening device for preparing a mixture according to the present invention;

[0018] Figure 2 This is a rear cross-sectional perspective view of a screening device for preparing a mixture according to the present invention.

[0019] Figure 3 This is a three-dimensional structural diagram of the connecting roller-top protrusion of a screening device for preparing a mixture according to the present invention.

[0020] In the diagram: 1. Support bracket; 2. Pre-screening box; 3. Feeding hopper; 4. Limiting groove; 5. Sealing plate; 6. Handle; 7. Primary screen; 8. Drive motor; 9. Connecting assembly; 91. Connecting roller; 92. Connecting shaft; 93. Top material protrusion; 10. Fine screen plate; 11. T-shaped slider; 12. Discharge guide plate; 13. Impurity collection mechanism; 131. Impurity collection box; 132. Guide slide bar; 133. Handle. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] like Figure 1 and Figure 2 As shown, a screening device for preparing a mixture includes a support bracket 1 and a drive motor 8. A pre-screening box 2 is fixedly installed on the top of the support bracket 1, and a feeding hopper 3 is fixedly connected to the top of the pre-screening box 2. A limiting groove 4 is opened on the side of the pre-screening box 2, and a sealing plate 5 is movably installed on the inner surface of the limiting groove 4. The internal dimensions of the limiting groove 4 and the external dimensions of the sealing plate 5 are completely matched. The sealing plate 5 and the pre-screening box 2 form a locking structure through the limiting groove 4. By setting the sealing plate 5 and the pre-screening box 2 into a locking structure, the sealing plate 5 can be quickly disassembled and assembled by the staff, thus providing convenience for the staff to remove unqualified products. At the same time, a handle 6 is fixedly installed on the outer surface of the sealing plate 5, and a primary screen 7 is fixedly installed on the inner surface of the pre-screening box 2. The drive motor 8 is installed on the outside of the support bracket 1, and a connecting component 9 is installed on the output shaft of the drive motor 8 through a coupling. A fine screen plate 10 is attached to the top of the connecting component 9.

[0023] like Figures 1-3As shown, the drive motor 8 is mounted on the outside of the support bracket 1, and the output shaft of the drive motor 8 is mounted with a connecting assembly 9 via a coupling. The connecting assembly 9 includes a connecting rod 91, a connecting shaft 92, and a top protrusion 93. The connecting shaft 92 is fixedly mounted on the inner surface of the connecting rod 91, and the outer surface of the connecting shaft 92 is fixedly connected to the inner surface of the connecting rod 91. The end of the connecting shaft 92 is rotatably connected to the inside of the support bracket 1. The connecting rod 91 and the support bracket 1 form a rotating structure through the connecting shaft 92. This makes the connecting roller 91 rotate more smoothly and stably along the inner surface of the support bracket 1. The outer surface of the connecting roller 91 is fixedly equipped with equal-spaced, ring-shaped top protrusions 93. A fine screen plate 10 is attached to the top of the connecting assembly 9, and T-shaped sliders 11 are symmetrically installed on the front and rear sides of the fine screen plate 10. The sides of the fine screen plate 10 are fixedly connected to the inner sides of the T-shaped sliders 11, and the fine screen plate 10 forms a sliding structure with the support bracket 1 through the T-shaped sliders 11. Through the sliding structure of the fine screen plate 10 and the support bracket 1, the fine screen plate 10 rotates along the inner surface of the support bracket 1. The inner surface of the support bracket 1 moves more smoothly and stably during lifting and lowering. A feeding guide plate 12 is fixedly installed on the side of the support bracket 1. The end of the feeding guide plate 12 is fixedly connected to the side of the support bracket 1, and the feeding guide plate 12 and the support bracket 1 form a fixed structure. The feeding guide plate 12 is inclined outward. Through the fixed structure of the feeding guide plate 12 and the support bracket 1, the feeding guide plate 12 will not loosen when the material is discharged. Furthermore, an impurity collection mechanism 13 is slidably connected to the bottom inner surface of the support bracket 1. The mechanism 13 includes an impurity collection box 131, a guide slide 132, and a handle 133. The guide slide 132 is symmetrically installed on the bottom of the impurity collection box 131. The bottom of the impurity collection box 131 is fixedly connected to the top of the guide slide 132. The impurity collection box 131 and the support bracket 1 form a sliding structure through the guide slide 132. By setting the impurity collection box 131 and the support bracket 1 into a sliding structure, the impurity collection box 131 is easy for the staff to quickly pick up and put in. The handle 133 is fixedly installed on the outside of the impurity collection box 131.

[0024] In summary, this screening device for preparing mixtures firstly... Figures 1 to 3As shown in the diagram, the operator turns on the drive motor 8 via the controller. When the drive motor 8 starts running, it drives the connecting shaft 92 to rotate inside the support bracket 1, thereby causing the connecting roller 91 to drive the top material protrusion 93 to rotate synchronously inside the support bracket 1. When the top material protrusion 93 rotates to its highest point, it drives the fine screen plate 10 to move upward. When the top material protrusion 93 separates from the fine screen plate 10, the fine screen plate 10 moves back to its original position through the sliding of the T-shaped slider 11, thus achieving the purpose of driving the fine screen plate 10 to vibrate and screen at high speed. Then, the operator pours the material to be processed into the pre-screening box 2 through the feeding hopper 3. At this time, the material is pre-screened with the help of the primary screen 7. Then, the material that has been pre-screened automatically falls to the top of the fine screen plate 10. At this time, the material is further screened by the fine screen plate 10. The qualified material automatically slides to the discharge guide plate 12, while the smaller material automatically passes through the fine screen plate 10 and falls into the impurity collection box 131 for collection, thus completing the overall screening of the material.

[0025] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A screening device for preparing a mixture, comprising a support frame (1) and a drive motor (8), characterized in that, The top of the support bracket (1) is fixedly installed with a pre-screening box (2), and the top of the pre-screening box (2) is fixedly connected with a feeding hopper (3). The side of the pre-screening box (2) has a limiting groove (4), and the inner surface of the limiting groove (4) is movably installed with a sealing plate (5). At the same time, the outer surface of the sealing plate (5) is fixedly installed with a handle (6). The inner surface of the pre-screening box (2) is fixedly installed with a primary screen (7). The drive motor (8) is installed on the outside of the support bracket (1), and the output shaft of the drive motor (8) is connected to a connecting component (9) through a coupling. The top of the connecting component (9) is fitted with a fine screen plate (10), and T-shaped sliders (11) are symmetrically installed on the front and rear sides of the fine screen plate (10). The side of the support bracket (1) is fixedly installed with a discharge guide plate (12), and the bottom inner surface of the support bracket (1) is slidably connected with an impurity collection mechanism (13).

2. The screening device for preparing a mixture according to claim 1, characterized in that, The internal dimensions of the limiting groove (4) are completely matched with the external dimensions of the sealing plate (5), and the sealing plate (5) forms a locking structure with the pre-screening box (2) through the limiting groove (4).

3. The screening device for preparing a mixture according to claim 1, characterized in that, The connecting assembly (9) includes a connecting rod (91), a connecting shaft (92), and a top protrusion (93). The connecting shaft (92) is fixedly installed on the inner surface of the connecting rod (91), and the top protrusion (93) is fixedly installed on the outer surface of the connecting rod (91) in an annular shape at equal intervals.

4. The screening device for preparing a mixture according to claim 3, characterized in that, The outer surface of the connecting shaft (92) is fixedly connected to the inner surface of the connecting rod (91), and the end of the connecting shaft (92) is rotatably connected to the inside of the bearing bracket (1). The connecting rod (91) and the bearing bracket (1) form a rotating structure through the connecting shaft (92).

5. A screening device for preparing a mixture according to claim 1, characterized in that, The side of the fine sieve plate (10) is fixedly connected to the inner side of the T-shaped slider (11), and the fine sieve plate (10) and the bearing bracket (1) form a sliding structure through the T-shaped slider (11).

6. A screening device for preparing a mixture according to claim 1, characterized in that, The end of the feeding guide plate (12) is fixedly connected to the side of the bearing bracket (1), and the feeding guide plate (12) and the bearing bracket (1) form a fixed structure, and the feeding guide plate (12) is inclined outward.

7. A screening device for preparing a mixture according to claim 1, characterized in that, The impurity collection mechanism (13) includes an impurity collection box (131), a guide slide (132) and a handle (133), and the guide slide (132) is symmetrically installed on the bottom of the impurity collection box (131), and the handle (133) is fixedly installed on the outside of the impurity collection box (131).

8. A screening device for preparing a mixture according to claim 7, characterized in that, The bottom of the impurity collection box (131) is fixedly connected to the top of the guide slide (132), and the impurity collection box (131) and the support bracket (1) form a sliding structure through the guide slide (132).

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