A plastic particle quality inspection device

Abstract

This utility model relates to the field of plastic particle quality inspection and discloses a plastic particle quality inspection device, including an inspection box. A feed pipe is fixedly connected through and to the upper surface of the inspection box. A door is hinged to the left surface of the inspection box. A screening component is provided on the inner wall of the inspection box. The screening component includes a motor, which is located on the upper surface of the inspection box. A rotating rod is fixedly connected to the output shaft of the motor. Slide rails are fixedly connected to both the front and rear ends of the inner wall of the inspection box, and a support plate is slidably connected to the outer wall of the slide rails. In this utility model, the rotating rod is driven by the motor to rotate, causing the slider to slide within the slide groove. This causes the support plate to vibrate up and down along the slide rail, effectively preventing plastic particles from accumulating on the filter plate surface and clogging the filter holes. Frequent machine shutdowns for cleaning are unnecessary. Simultaneously, the two sets of filter plates with different filter holes can accurately screen particles of different sizes, improving inspection efficiency and quality, and ensuring stable quality of raw materials for subsequent production.

Description

Technical Field

[0001] This utility model relates to the field of plastic particle quality inspection, and in particular to a plastic particle quality inspection device. Background Technology

[0002] In the plastics processing industry, plastic particles are the core raw material. Their dimensional accuracy directly determines the molding quality, physical properties, and production stability of subsequent products. Whether it is injection molding, extrusion molding, or blow molding, if the plastic particles are too large or too small, it is easy to cause defects such as bubbles, material shortages, and uneven wall thickness in the products. At the same time, it is also easy to cause production failures such as equipment feeding blockage and accelerated mold wear, resulting in increased costs and a high defect rate.

[0003] Therefore, strict size screening and quality inspection of plastic particles before they are put into production has become an indispensable key link in the plastic processing industry chain.

[0004] Currently, most conventional plastic particle quality inspection equipment on the market adopts a single fixed filter plate structure or a manual assisted screening method. While the single fixed filter plate equipment can achieve basic screening functions, plastic particles tend to accumulate on the surface of the filter plate, causing filter pore blockage. This not only requires frequent machine shutdowns for cleaning but also reduces quality inspection efficiency. On the other hand, the manual assisted screening method relies on operators to manually shake the filter, which is not only labor-intensive and time-consuming, but also the screening effect is greatly affected by factors such as the force and frequency of human operation, making it difficult to guarantee the consistency of quality inspection results. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a plastic particle quality inspection device, which aims to improve the problems of easy clogging of single fixed filter plates, frequent machine shutdowns for cleaning, high labor intensity of manual sieving, and poor consistency of quality inspection results in the existing technology.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a plastic particle quality inspection device, including a quality inspection box, a feed pipe that is connected through and fixed to the upper surface of the quality inspection box, a door that is hinged to the left surface of the quality inspection box, and a screening component that is provided on the inner wall of the quality inspection box; The screening assembly includes a motor, which is mounted on the upper surface of the inspection box. The output shaft of the motor is fixedly connected to a rotating rod. Slide rails are fixedly connected to both the front and rear ends of the inner wall of the inspection box. A support plate is slidably connected to the outer wall of the slide rail. A filter plate is inserted into the inner wall of the support plate. A groove is opened at the right end of the inner wall of the support plate. A slider is fixedly connected to the front surface of the rotating rod. A positioning assembly is provided inside the support plate.

[0007] As a further description of the above technical solution: The positioning component includes a locking block, which is slidably connected to the inner surface of the support plate. The end of the locking block away from the center of the support plate is elastically connected to the inner wall of the support plate through an elastic element. Notches are provided at both the front and rear ends of the left surface of the filter plate, and a snap-fit ​​groove is provided at the left end of the lower surface of the filter plate.

[0008] As a further description of the above technical solution: A handle is fixedly connected to the left surface of the box door, and the front end of the left surface of the box door is fixed to the left surface of the quality inspection box by a latch.

[0009] As a further description of the above technical solution: The inner wall at the bottom of the quality inspection box is inclined with the left side lower than the right side. The left surface of the support plate is open. Both the upper and lower surfaces of the support plate are hollow. The rotating rod passes through and is rotatably connected to the upper surface of the quality inspection box.

[0010] As a further description of the above technical solution: The slider is hemispherical, and the groove is annular with the left side lower than the right side and both ends closed.

[0011] As a further description of the above technical solution: The slider is slidably connected to the inner wall of the groove, and the inner surface of the filter plate is provided with filter holes. There are two sets of filter plates, which are arranged vertically. The filter holes on the upper filter plate are larger than those on the lower filter plate.

[0012] As a further description of the above technical solution: The locking block engages with the inner wall of the notch.

[0013] As a further description of the above technical solution: The end of the card block near the center of the support plate is set as an arc surface.

[0014] This utility model has the following beneficial effects: 1. In this utility model, the rotating rod is driven by a motor to rotate, which drives the slider to slide in the groove, causing the support plate to vibrate up and down along the slide rail. This effectively prevents plastic particles from accumulating on the filter plate surface and clogging the filter holes, eliminating the need for frequent machine shutdowns for cleaning. At the same time, the two sets of filter plates with different filter holes can accurately screen particles of different sizes, improving quality inspection efficiency and quality, and ensuring the stability of the quality of raw materials for subsequent production.

[0015] 2. In this utility model, with the cooperation of the positioning components, the filter plate can be easily pulled by the slot, so that the locking block can be disengaged or locked into the notch to complete the disassembly and assembly. No tools are needed, the operation is simple and quick, and it is convenient to disassemble, replace or clean the filter plate, thus improving the practicality of the device. Attached Figure Description

[0016] Figure 1 This is a front view of the three-dimensional structure of the overall device in this utility model; Figure 2 This is a three-dimensional cross-sectional view of the overall device in this utility model; Figure 3 This is a three-dimensional structural breakdown diagram of the support plate and filter plate in this utility model; Figure 4 This is a three-dimensional cross-sectional view of the support plate in this utility model; Figure 5 This is a three-dimensional cross-sectional diagram of the rotating rod and support plate in this utility model.

[0017] Legend: 1. Quality inspection box; 2. Feed pipe; 3. Box door; 41. Motor; 42. Rotating rod; 43. Support plate; 44. Filter plate; 45. Slide rail; 46. Slider; 47. Slide groove; 51. Locking block; 52. Elastic element; 53. Notch; 54. Clip groove. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Reference Figures 1-3 This utility model provides an embodiment of a plastic particle quality inspection device, including an inspection box 1. Support feet are fixed at the four corners of the lower surface of the inspection box 1 to provide support for the device. A feed pipe 2 for adding raw materials is connected through and fixed to the upper surface of the inspection box 1. A door 3 is hinged to the left surface of the inspection box 1 via a hinge. The door 3 can rotate and open around the center of the hinge to facilitate the cleaning of qualified and unqualified plastic particles. A screening component is provided on the inner wall of the inspection box 1, which can screen the plastic particles and distinguish between qualified and unqualified plastic particles.

[0020] Reference Figure 2 , Figure 3 , Figure 5The screening component includes a motor 41, which is existing technology and can be implemented by those skilled in the art. As it is existing technology, it will not be described in detail in this case. The motor 41 is set on the upper surface of the inspection box 1. The output shaft of the motor 41 is fixedly connected to a rotating rod 42. The front and rear ends of the inner wall of the inspection box 1 are fixedly connected to slide rails 45. The slide rails 45 are U-shaped, and the upper and lower ends of the slide rails 45 are convex in the direction of the center of the inspection box 1. The outer wall of the slide rails 45 is slidably connected to a support plate 43, which can guide the support plate 43. The inner wall of the support plate 43 is inserted with a filter plate 44, which can distinguish between qualified and unqualified plastic particles. The right end of the inner wall of the support plate 43 has a groove 47. The front surface of the rotating rod 42 is fixedly connected to a slider 46. The inside of the support plate 43 is provided with a positioning component, which is used to limit the position of the filter plate 44.

[0021] Reference Figure 2 , Figure 3 , Figure 5 A handle is fixedly connected to the left surface of the door 3 for easy gripping. The front end of the left surface of the door 3 is fixed to the left surface of the inspection box 1 by a latch. The latch is existing technology and can be implemented by those skilled in the art. As it is existing technology, it will not be described in detail in this case. The latch consists of two parts, one part is fixed to the door 3 and the other part is fixed to the inspection box 1. The two parts can lock or unlock each other to fix the door 3. The inner wall of the bottom of the inspection box 1 is set to be inclined on the left and high on the right. Plastic particles smaller than the qualified size will fall to the bottom of the inspection box 1 and slide along its bottom inner wall. The left surface of the support plate 43 is set to be open. The filter plate 44 is inserted from the left opening of the support plate 43. Both the upper and lower surfaces of the support plate 43 are set to be hollow so as not to obstruct the filter plate 44. The rotating rod 42 is rotatably connected to the upper surface of the quality inspection box 1. The slider 46 is hemispherical, and the slide groove 47 is a ring with the left side lower than the right side and both ends closed. The slider 46 is slidably connected to the inner wall of the slide groove 47. When the slider 46 rotates with the rotating rod 42, it will squeeze the inner wall of the slide groove 47, which will drive the support plate 43 to reciprocate up and down to avoid the accumulation and blockage of plastic particles. The inner surface of the filter plate 44 is provided with filter holes. There are two sets of filter plates 44, which are distributed vertically. The filter holes on the upper filter plate 44 are larger than those on the lower filter plate 44. Plastic particles larger than the qualified size cannot pass through the upper filter plate 44, while plastic particles smaller than the qualified size will pass through the lower filter plate 44. Plastic particles of the qualified size will stay on the lower filter plate 44.

[0022] Reference Figure 1 , Figure 2 , Figure 4The positioning component includes a locking block 51, which is slidably connected to the inner surface of the support plate 43. The end of the locking block 51 away from the center of the support plate 43 is elastically connected to the inner wall of the support plate 43 through an elastic element 52. When the locking block 51 moves toward the edge of the support plate 43, it will squeeze the elastic element 52 to generate a reaction force. Notches 53 are provided at both the front and rear ends of the left surface of the filter plate 44. The positions of the locking block 51 and the notches 53 correspond. A latching groove 54 is provided at the left end of the lower surface of the filter plate 44 for easy finger-operated operation.

[0023] Reference Figure 1 , Figure 2 , Figure 4 The locking block 51 is engaged with the inner wall of the notch 53. The end of the locking block 51 near the center of the support plate 43 is set as an arc surface. When the arc surface is squeezed, the locking block 51 will move towards the edge of the support plate 43 to release the obstruction. The arc surface of the locking block 51 will be squeezed during the installation and removal of the filter plate 44.

[0024] Working principle: When inspecting plastic particles, the plastic particles to be tested are first put into the inspection box 1 through the feed pipe 2. Then, the motor 41 is started. The output shaft of the motor 41 drives the rotating rod 42 to rotate. The slider 46 on the front surface of the rotating rod 42 slides in the groove 47 at the right end of the support plate 43. During the rotation, the slider 46 will continuously squeeze the inner wall of the groove 47, thereby pushing the support plate 43 to move up and down along the slide rails 45 at both ends of the inner wall of the inspection box 1.

[0025] The plastic particles are fed into the filter plate 44. Due to the shaking of the support plate 43, plastic particles larger than the qualified size are intercepted by the filter plate 44, while plastic particles of qualified size pass through the filter plate 44 and fall onto the filter plate 44. Plastic particles smaller than the qualified size pass through the filter plate 44 and fall to the bottom of the quality inspection box 1, thus realizing the screening and quality inspection of plastic particles of different sizes.

[0026] After quality inspection, open the door 3 using the handle on the left side of the door 3, and then clean the plastic particles on the filter plate 44. If the filter plate 44 needs to be replaced, the groove 54 on the lower surface of the filter plate 44 can be engaged to pull the filter plate 44 toward the opening on the left side of the support plate 43. During this process, the notch 53 on the left side of the filter plate 44 presses against the arc end of the locking block 51, causing the locking block 51 to slide away from the center of the support plate 43 and press against the elastic element 52. The locking block 51 disengages from the notch 53, and the filter plate 44 can be removed from the support plate 43. During installation, insert the filter plate 44 into the support plate 43. The edge of the filter plate 44 presses against the arc surface of the locking block 51. When the notch 53 is aligned with the locking block 51, the elastic element 52 resets and pushes the locking block 51 into the notch 53, completing the positioning of the filter plate 44 for subsequent quality inspection operations.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A plastic particle quality inspection equipment, comprising a quality inspection box (1), characterized in that: The quality inspection box (1) has a feed pipe (2) that runs through and is fixedly connected to its upper surface. The left surface of the quality inspection box (1) is hinged with a door (3). The inner wall of the quality inspection box (1) is provided with a screening component. The screening assembly includes a motor (41), which is located on the upper surface of the inspection box (1). The output shaft of the motor (41) is fixedly connected to a rotating rod (42). Slide rails (45) are fixedly connected to both the front and rear ends of the inner wall of the inspection box (1). A support plate (43) is slidably connected to the outer wall of the slide rail (45). A filter plate (44) is inserted into the inner wall of the support plate (43). A groove (47) is opened at the right end of the inner wall of the support plate (43). A slider (46) is fixedly connected to the front surface of the rotating rod (42). A positioning assembly is provided inside the support plate (43).

2. The plastic particle quality inspection equipment according to claim 1, characterized in that: The positioning component includes a locking block (51), which is slidably connected to the inner surface of the support plate (43). The end of the locking block (51) away from the center of the support plate (43) is elastically connected to the inner wall of the support plate (43) through an elastic element (52). Notches (53) are provided at both the front and rear ends of the left surface of the filter plate (44), and a snap groove (54) is provided at the left end of the lower surface of the filter plate (44).

3. The plastic particle quality inspection equipment according to claim 1, characterized in that: A handle is fixedly connected to the left surface of the box door (3), and the front end of the left surface of the box door (3) is fixed to the left surface of the quality inspection box (1) by a latch.

4. The plastic particle quality inspection equipment according to claim 1, wherein: The inner wall of the bottom of the quality inspection box (1) is inclined with the left side lower than the right side. The left surface of the support plate (43) is open. Both the upper and lower surfaces of the support plate (43) are hollow. The rotating rod (42) passes through and is rotatably connected to the upper surface of the quality inspection box (1).

5. The plastic particle quality inspection device according to claim 1, wherein: The slider (46) is hemispherical, and the groove (47) is an annular shape with the left side lower than the right side and the two ends closed.

6. The plastic particle quality inspection apparatus according to claim 1, wherein: The slider (46) is slidably connected to the inner wall of the groove (47). The inner surface of the filter plate (44) is provided with filter holes. There are two sets of filter plates (44), which are distributed vertically. The filter holes on the upper filter plate (44) are larger than those on the lower filter plate (44).

7. The plastic particle quality inspection apparatus according to claim 2, characterized by: The locking block (51) engages with the inner wall of the notch (53).

8. The plastic particle quality inspection apparatus according to claim 2, characterized by: The end of the card block (51) near the center of the support plate (43) is set as an arc surface.

Images