Plastic raw material screening device

Abstract

The utility model relates to the field of plastic screening and processing equipment, and discloses a plastic raw material screening device which comprises a screening box, a feeding port is formed in the upper surface of the screening box, an observation door is detachably connected to the front surface of the screening box, a screening assembly is arranged at the upper end of the right surface of the inner wall of the screening box, and the screening assembly comprises a mounting frame. The left end of the inner wall of the mounting frame is fixedly connected with a telescopic rod, the outer wall of the telescopic end of the telescopic rod is sleeved with a spring, the right end of the telescopic rod is fixedly connected with a screening plate, and the right end of the screening plate is fixedly connected with a check block. According to the plastic raw material screening device, the plastic raw materials are screened and separated through mutual cooperation of connection relations of parts such as the screening assembly, the phenomenon that the plastic raw materials block the screening plate is avoided through movement of the screening plate in the screening assembly, the stability of shaking of the screening plate in the horizontal direction is enhanced, and the screening efficiency is improved. And the screening effect of the screening plate on the plastic raw materials is enhanced.

Description

Technical Field

[0001] The utility model relates to the field of plastic screening and processing equipment, in particular to a plastic raw material screening device. Background Art

[0002] Plastic screening and processing technology is a critical component of plastics recycling and reuse. With the widespread use of plastic products, the disposal of plastic waste is becoming increasingly problematic. Traditional plastic screening methods suffer from low efficiency, low screening accuracy, and high energy consumption, which not only hinders plastic recycling efficiency but also increases processing costs. Furthermore, the wide variety of plastics, each with its own distinct physical and chemical properties, places higher demands on the adaptability and flexibility of screening equipment.

[0003] After searching, Chinese patent announcement number: CN215849104U discloses a plastic raw material production equipment, including a screening device body, a feed port arranged above the screening device body, a first screening mechanism and a second screening mechanism are sequentially provided in the screening device body, a first discharge port is provided at the end of the first screening mechanism, and a second discharge port is provided at the end of the second screening mechanism. A collection box mechanism is provided below the first discharge port and the second discharge port on the outer wall of the screening device body, and a plurality of third discharge ports are provided below the second screening mechanism; the first screening mechanism and the second screening mechanism both include two symmetrically distributed fixed plates, a first conveyor belt is provided between the two fixed plates in the first screening mechanism, and a second conveyor belt is provided between the two fixed plates in the second screening mechanism. This design is simple to operate, has strong comprehensive practicality, and is easy to promote and use.

[0004] The above device has the following defects: when screening plastic particles, the particles may clog the filter plate, causing the screening device to lose its screening function. The equipment needs to be paused to manually clean the clogged filter plate, which is time-consuming and labor-intensive and reduces the equipment's screening efficiency for particles. Therefore, a plastic raw material screening device is proposed to solve the above problem. Utility Model Content

[0005] In order to make up for the above deficiencies, the utility model provides a plastic raw material screening device, which aims to improve the problem in the prior art that the filter plate is easily clogged when screening particles.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a plastic raw material screening device, comprising a screening box, a feed port is provided on the upper surface of the screening box, an observation door is detachably connected to the front surface of the screening box, a screening assembly is provided on the upper end of the right surface of the inner wall of the screening box, the screening assembly comprises a mounting frame, a telescopic rod is fixedly connected to the left end of the inner wall of the mounting frame, a spring is sleeved on the outer wall of the telescopic end of the telescopic rod, a screening plate is fixedly connected to the right end of the telescopic rod, a block is fixedly connected to the right end of the screening plate, and an auxiliary assembly is provided at the axis center of the right surface of the inner wall of the screening box.

[0007] As a further description of the above technical solution: the auxiliary component includes a motor, a half gear is fixedly connected to the outer wall of the motor output shaft, a box body is fixedly connected to the axis center of the right surface of the inner wall of the screening box, a movable block is slidably connected to the inner wall of the box body, and the upper and lower surfaces of the movable block are fixedly connected to the output rod.

[0008] As a further description of the above technical solution: the output rod is connected through the upper surface of the box body.

[0009] As a further description of the above technical solution: racks are provided on the left and right surfaces of the inner wall of the movable block, and the gear edge of the half gear is engaged with the rack in the inner wall of the movable block.

[0010] As a further description of the above technical solution: the top end of the output rod is fixedly connected with a push block, and the lower surface of the output rod is fixedly connected with a cleaning plate.

[0011] As a further description of the above technical solution: a collecting box is fixedly connected to the left end of the inner wall of the screening box, guide blocks are fixedly connected to the front and rear ends of the inner wall of the collecting box, a material transporting auger is fixedly connected to the axis of the lower surface of the inner wall of the collecting box, a cylinder is fixedly connected to the right surface of the inner wall of the collecting box, and a discharge port is opened at the upper end of the left surface of the cylinder.

[0012] As a further description of the above technical solution: the installation frame is fixedly connected to the upper end of the right surface of the inner wall of the screening box.

[0013] As a further description of the above technical solution: the motor is fixedly connected to the axis center of the right surface of the screening box.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, the screening and separation of plastic raw materials is achieved by utilizing the mutual cooperation between the screening plate, block, mounting frame and other components in the screening assembly through the connection relationship. The movement of the screening plate in the screening assembly avoids the phenomenon of plastic raw materials blocking the screening plate, improves the stability of the screening plate in the horizontal shaking direction, and enhances the screening effect of the screening plate on plastic raw materials.

[0016] 2. In the utility model, the inner wall of the screening box is cleaned by the mutual cooperation between the box body, output rod, half gear and other parts in the auxiliary assembly, thereby improving the cleanliness of the inner wall of the screening box, avoiding the phenomenon of plastic raw materials adsorbing the inner wall, and enhancing the discharge effect of the screening box on plastic raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional schematic diagram of the main body of a plastic raw material screening device proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the internal area of a screening box of a plastic raw material screening device proposed in the present invention;

[0019] Figure 3 This is a partial cross-sectional schematic diagram of a collecting box of a plastic raw material screening device proposed in the utility model;

[0020] Figure 4 This is a schematic diagram of a cross-sectional area of an installation frame of a plastic raw material screening device proposed in the present invention;

[0021] Figure 5 This is a schematic diagram of the internal area of a box body of a plastic raw material screening device proposed in the utility model.

[0022] Legend:

[0023] 1. Screening box; 2. Observation door; 3. Feed port; 4. Discharge port; 5. Screening assembly; 51. Mounting frame; 52. Telescopic rod; 53. Spring; 54. Screening plate; 55. Stop block; 6. Auxiliary assembly; 61. Motor; 62. Half gear; 63. Movable block; 64. Output rod; 65. Box body; 66. Cleaning plate; 67. Push block; 7. Collecting box; 71. Cylinder; 72. Guide block; 73. Material transport auger. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Reference Figure 1 - Figure 2The utility model provides an embodiment: a plastic raw material screening device, including a screening box 1, which supports the device. A feeding port 3 is provided on the upper surface of the screening box 1, and the plastic raw material is added into the screening box 1 through the feeding port 3. The front surface of the screening box 1 is detachably connected with an observation door 2. The staff can observe the working status of the screening box 1 for screening plastic particles at any time through the observation door 2, which improves the convenience of the staff in maintaining the internal parts of the screening box 1. A screening component 5 is provided on the upper end of the right surface of the inner wall of the screening box 1, and an auxiliary component 6 is provided at the axis center of the right surface of the inner wall of the screening box 1.

[0026] Reference Figure 2 - Figure 4 When the raw materials are added into the screening box 1, the screening assembly 5 and the auxiliary assembly 6 are started. The auxiliary assembly 6 includes a motor 61, which is fixedly connected to the axis center of the right surface of the screening box 1. A half gear 62 is fixedly connected to the outer wall of the output shaft of the motor 61. A box body 65 is fixedly connected to the axis center of the right surface of the inner wall of the screening box 1. A movable block 63 is slidably connected to the inner wall of the box body 65. Racks are provided on the left and right surfaces of the inner wall of the movable block 63. The gear edge of the half gear 62 is engaged with the rack in the inner wall of the movable block 63. When the motor 61 is started, the half gear 62 is driven to rotate. The gear 62 drives the movable block 63 to move. The upper and lower surfaces of the movable block 63 are fixedly connected to the output rod 64. The output rod 64 is connected to the upper surface of the box body 65. The top of the output rod 64 is fixedly connected to the push block 67. The lower surface of the output rod 64 is fixedly connected to the cleaning plate 66, so that the output rod 64 reciprocates in the vertical direction, driving the push block 67 to move upward to squeeze the block 55. Under the squeezing action, the block 55 drives the screening plate 54 to reciprocate left and right in the vertical direction. The raw materials are screened through the screening plate 54 under the action of gravity, and the horizontal direction is cleaned. The upward moving screening plate 54 shakes the raw material particles to avoid the phenomenon of plastic raw materials blocking the screening plate 54. The screening component 5 includes a mounting frame 51, which is fixedly connected to the upper right surface of the inner wall of the screening box 1. The mounting frame 51 supports the screening component 5. The left end of the inner wall of the mounting frame 51 is fixedly connected to a telescopic rod 52. The outer wall of the telescopic end of the telescopic rod 52 is sleeved with a spring 53. The right end of the telescopic rod 52 is fixedly connected to the screening plate 54. The squeezing force in the horizontal direction of the screening plate 54 causes the spring 53 and the telescopic rod 52 to deform. When 7 moves downward, the reaction force of the spring 53 drives the screening plate 54 to move rightward, completing the reset of the screening plate 54. The right end of the screening plate 54 is fixedly connected to a stopper 55, which enhances the stability of the screening plate 54 in the horizontal shaking direction and enhances the screening effect of the screening plate 54 on the plastic raw materials. When the output rod 64 moves downward, the cleaning plate 66 moves downward to clean the inner wall of the screening box 1, thereby improving the cleanliness of the inner wall of the screening box 1, avoiding the phenomenon of plastic raw materials adsorbing the inner wall, and enhancing the discharge effect of the screening box 1 on the plastic raw materials.

[0027] Reference Figure 3 - Figure 4 The sieve 7 is then moved back into the sieve 7 by the pulley 71 and the sieve 7 is moved back into the sieve 7. The sieve 7 is then moved to the sieve 7 by the pulley 72 .

[0028] Working principle: When the raw material is added into the screening box 1, the screening component 5 and the auxiliary component 6 are started, the motor 61 starts to drive the half gear 62 to rotate, and the movable block 63 is driven to move through the half gear 62, so that the output rod 64 reciprocates in the vertical direction, and drives the push block 67 to move upward to squeeze the block 55. Under the extrusion action, the block 55 drives the screening plate 54 to reciprocate left and right in the vertical direction. The raw material is screened through the screening plate 54 under the action of gravity. The screening plate 54 moving in the horizontal direction shakes the raw material particles to avoid the phenomenon of plastic raw materials blocking the screening plate 54. The horizontal extrusion force of the screening plate 54 causes the spring 53 and the telescopic rod 52 to deform. When the push block 67 moves downward, the reaction force of the spring 53 drives the screening plate 54 to move to the right, completing the resetting effect of the screening plate 54 and enhancing the screening efficiency. The plate 54 has a screening effect on the plastic raw materials. When the output rod 64 moves downward, the cleaning plate 66 moves downward to clean the inner wall of the screening box 1, avoiding the phenomenon of plastic raw materials adsorbing the inner wall, and enhancing the discharge effect of the screening box 1 on the plastic raw materials. During the operation of the screening component 5, the plastic raw materials that do not meet the diameter fall into the collection box 7 under the action of the tilt of the installation frame 51. The plastic raw materials cooperate with their own gravity to divide the unqualified screening raw materials, start the material conveying auger 73, and the material conveying auger 73 cooperates with the cylinder 71 to form a closed space, and discharge the unqualified plastic materials from the discharge port 4, realizing the screening, segmentation and discharge of unqualified raw materials, avoiding the phenomenon of unqualified raw materials being mixed with the screening raw materials for the second time, improving the convenience of the staff in transferring unqualified raw materials for screening, and enriching the functionality of the screening box 1.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A plastic material screening device, comprising a screening box (1), characterized in that: The upper surface of the screening box (1) is provided with a feed port (3); the front surface of the screening box (1) is detachably connected to an observation door (2); the upper end of the right surface of the inner wall of the screening box (1) is provided with a screening assembly (5); the screening assembly (5) comprises a mounting frame (51); the left end of the inner wall of the mounting frame (51) is fixedly connected to a telescopic rod (52); the outer wall of the telescopic end of the telescopic rod (52) is sleeved with a spring (53); the right end of the telescopic rod (52) is fixedly connected to a screening plate (54); the right end of the screening plate (54) is fixedly connected to a stopper (55); and an auxiliary assembly (6) is provided at the axis center of the right surface of the inner wall of the screening box (1).

2. A plastic raw material screening device according to claim 1, characterized in that: The auxiliary component (6) includes a motor (61), a half gear (62) is fixedly connected to the outer wall of the output shaft of the motor (61), a box body (65) is fixedly connected to the axis center of the right surface of the inner wall of the screening box (1), a movable block (63) is slidably connected to the inner wall of the box body (65), and an output rod (64) is fixedly connected to the upper and lower surfaces of the movable block (63).

3. A plastic material screening device according to claim 2, characterized in that: The output rod (64) is connected to the upper surface of the box body (65).

4. The plastic material screening device according to claim 2, characterized in that: Racks are provided on the left and right surfaces of the inner wall of the movable block (63), and the gear edge of the half gear (62) is engaged with the racks in the inner wall of the movable block (63).

5. The plastic material screening device according to claim 2, characterized in that: The top end of the output rod (64) is fixedly connected to a push block (67), and the lower surface of the output rod (64) is fixedly connected to a cleaning plate (66).

6. The plastic material screening device according to claim 1, characterized in that: The left end of the inner wall of the screening box (1) is fixedly connected to a collecting box (7), the front and rear ends of the inner wall of the collecting box (7) are fixedly connected to guide blocks (72), the axis of the lower surface of the inner wall of the collecting box (7) is fixedly connected to a material transporting auger (73), the right surface of the inner wall of the collecting box (7) is fixedly connected to a cylinder (71), and the upper end of the left surface of the cylinder (71) is provided with a discharge port (4).

7. The plastic material screening device according to claim 1, characterized in that: The installation frame (51) is fixedly connected to the upper end of the right surface of the inner wall of the screening box (1).

8. The plastic material screening device according to claim 2, characterized in that: The motor (61) is fixedly connected to the axis center of the right surface of the screening box (1).

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