Molding powder grading and screening device
By designing a multi-stage screening device for plastic powder, multi-stage screening of plastic powder is achieved using screens and vibration mechanisms, solving the problem of not being able to distinguish different particle sizes in existing technologies, and improving coating performance and production efficiency.
Patent Information
- Application Number
- CN202520054525.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-01-10
AI Technical Summary
Existing plastic powder screening devices can only perform one screening, which cannot effectively distinguish plastic powder of different particle sizes, thus affecting the performance of coatings.
A plastic powder grading and screening device was designed, comprising a screening box, a first screen and a second screen. Combined with a vibration mechanism and a driving mechanism, it realizes multi-stage screening and guiding of plastic powder. Impurities are screened through the first screen, and plastic powder of different particle sizes is screened through the second screen. The guide plate is tilted and discharged by a vibration motor and a cylinder.
This technology enables multi-stage screening of plastic powder, improving the consistency of coating performance and production efficiency, while simplifying the cleaning process of the screening device.
Smart Images
Figure CN223902296U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a plastic powder screening equipment technical field especially relates to a plastic powder grading screening device. BACKGROUND
[0002] Plastic powder is the material of plastic spraying process, that is, plastic powder is sprayed to the surface of the material by compressed air after high-temperature heating, and the effect of plastic powder spraying is good, the cost is low, the color is correct, and it is beautiful.
[0003] In the production process of plastic powder, plastic sheets or plastic particles are generally ground to form plastic powder. The particle size of the ground plastic powder is different, and the particle size of the plastic powder has an important influence on the performance of the coating. In order to keep the coating with good performance, the particle size of the plastic powder needs to be kept within a certain range, so the plastic powder needs to be screened. However, the existing screening device can only screen the plastic powder once, and cannot screen plastic powder of different particle sizes. To solve the above problems, a solution is proposed below. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing a plastic powder grading screening device to solve the problems in the background art.
[0005] The above technical purpose of the utility model is realized by the following technical scheme:
[0006] A plastic powder grading screening device, comprising a screening box, a box door is hinged to the screening box, and a feed inlet is formed in the top end of the screening box. A screen mesh one, a screen mesh two and a guide plate are arranged inside the screening box from top to bottom. Two support blocks one and two are arranged at the upper and lower ends of the screen mesh two. Two support blocks one and two are respectively fixed to the inner walls of the screening box on both sides and a support rod is fixed between them. Two support rods are arranged through the screen mesh two. A vibrating mechanism is arranged on the screen mesh two. A discharge plate is hinged to one end of the guide plate. A driving mechanism is arranged inside the screening box to drive the guide plate to tilt. A discharge port is formed in one side of the screening box. The discharge plate is located inside the discharge port.
[0007] Preferably, a feed hopper is installed at the top end of the screening box, and the inside of the feed hopper is in communication with the feed inlet.
[0008] Preferably, the aperture of the screen mesh one is larger than that of the screen mesh two.
[0009] Preferably, the vibrating mechanism comprises a vibrating motor, the vibrating motor is fixed to the bottom end of the screen mesh two, springs are fixed between the screen mesh two and the two support blocks one and two, and the springs are wound on the outer wall of the support rod.
[0010] Preferably, the driving mechanism includes a fixed block fixed to the bottom of the screening box, a cylinder is hinged inside the fixed block, a driving block is hinged to the piston rod of the cylinder, and the driving block is fixed to the bottom of the guide plate.
[0011] Preferably, the discharge plate is inclined.
[0012] The beneficial effects of this utility model are as follows: by setting screen one and screen two, plastic powder of different particle sizes can be screened; by setting vibration mechanism, the plastic powder on screen two can be vibrated onto guide plate; by setting drive mechanism, the guide plate can be tilted and the plastic powder on the guide plate can fall into the tilted discharge plate; and by opening the box door by the operator, residual plastic powder on screen one and screen two can be cleaned. Attached Figure Description
[0013] Figure 1 This is a cross-sectional view of an embodiment.
[0014] Reference numerals in the attached drawings: 1. Screening box; 11. Feed inlet; 111. Feed hopper; 12. Screen one; 13. Screen two; 14. Guide plate; 15. Support block one; 16. Support block two; 17. Support rod; 18. Discharge plate; 19. Discharge port; 2. Vibration mechanism; 21. Vibration motor; 22. Spring; 3. Driving mechanism; 31. Fixed block; 32. Cylinder; 33. Driving block. Detailed Implementation
[0015] The following description is merely a preferred embodiment of this utility model, and the scope of protection is not limited to this embodiment. All technical solutions falling within the scope of this utility model's concept should be protected. Identical components are represented by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom" and "top," "inner" and "outer" refer to directions toward or away from the geometric center of a specific component.
[0016] like Figure 1 As shown, a plastic powder grading and screening device includes a screening box 1, a door hinged to the screening box 1 and a feed inlet 11 at the top, and a feed hopper 111 installed at the top of the screening box 1. The inside of the feed hopper 111 is connected to the feed inlet 11. The feed hopper 111 allows more plastic powder to be poured into the feed inlet 11, and the plastic powder can enter the screening box 1 through the feed inlet 11.
[0017] The inside of the screening box 1 is provided with a screen one 12, a screen two 13 and a guide plate 14 from top to bottom, the aperture of the screen one 12 is larger than that of the screen two 13; when the plastic powder enters the inside of the screening box 1, the plastic powder can pass through the screen one 12 and fall on the screen two 13, wherein the screen one 12 can play a role in screening impurities, the small particle plastic powder on the screen two 13 can pass through directly and fall on the guide plate 14, and the larger particle plastic powder is located on the screen two 13.
[0018] The upper and lower ends of the screen two 13 are provided with two support blocks one 15 and support blocks two 16, the two support blocks one 15 and support blocks two 16 are respectively fixedly arranged on the two sides of the inner wall of the screening box 1 and are fixedly arranged with a support rod 17 therebetween, the two support rods 17 are both arranged through the screen two 13, the screen two 13 is provided with a vibrating mechanism 2, the vibrating mechanism 2 comprises a vibrating motor 21, the vibrating motor 21 is fixedly arranged at the bottom end of the screen two 13, the screen two 13 is fixedly arranged with a spring 22 between the two support blocks one 15 and support blocks two 16, and the spring 22 is wound on the outer wall of the support rod 17; through the start of the vibrating motor 21, the screen two 13 can be driven to vibrate on the two support rods 17, and a plurality of springs 22 can also be vibrated together, so as to enhance the effect of screening the plastic powder.
[0019] One end of the guide plate 14 is hingedly connected with a discharge plate 18, one side of the screening box 1 is provided with a discharge port 19, the discharge plate 18 is located in the inside of the discharge port 19, the discharge plate 18 is arranged in an inclined manner, and the inside of the screening box 1 is provided with a driving mechanism 3 for driving the guide plate 14 to be inclined; through the start of the driving mechanism 3, the guide plate 14 can be driven to be inclined, so that the plastic powder on the guide plate 14 can fall at the discharge plate 18, and since the discharge plate 18 is arranged in an inclined manner, the plastic powder on the discharge plate 18 can pass through the screening box 1 and fall into the existing collecting box outside.
[0020] The driving mechanism 3 comprises a fixed block 31 fixedly arranged at the bottom end of the screening box 1, a cylinder 32 hingedly connected in the inside of the fixed block 31, a driving block 33 hingedly connected on the piston rod of the cylinder 32, and the driving block 33 is fixed with the bottom end of the guide plate 14; through the extension and retraction of the piston rod of the cylinder 32, the driving block 33 and the guide plate 14 can be rotated around the hinge point of the discharge plate 18 until the guide plate 14 is arranged in an inclined manner.
[0021] Working principle: when the operator pours the plastic powder into the feeding hopper 111, the plastic powder can pass through the feeding hopper 111 and the feeding port 11 respectively and enter the inside of the screening box 1, then the plastic powder can pass through the screen one 12 and fall on the screen two 13, wherein the screen one 12 can play the role of screening impurities, the small particle plastic powder on the screen two 13 can pass through directly and fall on the guide plate 14, the larger particle plastic powder is located on the screen two 13, then the vibration motor 21 of the vibration mechanism 2 is started, which can not only drive the screen two 13 to vibrate on the two support rods 17, but also make the plurality of springs 22 vibrate together, so as to enhance the plastic powder screening effect of the screen two 13.
[0022] Wherein by driving the cylinder piston rod of the driving mechanism to stretch and retract, the driving block and the guide plate can rotate around the hinge point of the discharge plate as the center, until the guide plate is inclined and arranged, the plastic powder falling on the guide plate can fall on the discharge plate, since the discharge plate is inclined and arranged, the plastic powder on the discharge plate can pass through the screening box and fall into the existing collecting box outside, and after the screening is completed, the operator also opens the box door, so as to facilitate cleaning the residual plastic powder on the screen one and the screen two.
[0023] The above specific embodiments further illustrate the technical problems, technical solutions and beneficial effects solved by the utility model, and it should be understood that the above description is only for specific embodiments of the utility model and is not used to limit the utility model, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A plastic powder classifying and screening device comprising a screening box (1), characterized in that, The screening box (1) is hinged with a box door and is provided with a feeding port (11) at the top end, the screening box (1) is internally provided with a screen one (12), a screen two (13) and a guide plate (14) from top to bottom, the screen two (13) is provided with two support blocks one (15) and support blocks two (16) at the upper and lower ends, the two support blocks one (15) and support blocks two (16) are fixedly arranged on the two sides of the inner wall of the screening box (1) and are fixedly provided with a support rod (17) between them, the two support rods (17) are arranged through the screen two (13), the screen two (13) is provided with a vibrating mechanism (2), the guide plate (14) is hinged with a discharge plate (18) at one end, the screening box (1) is internally provided with a driving mechanism (3) for driving the guide plate (14) to be inclined, the screening box (1) is provided with a discharge port (19) on one side, and the discharge plate (18) is located in the discharge port (19).
2. A plastic powder classifying and screening device according to claim 1, characterized in that, The screening box (1) is hinged with a box door and is provided with a feeding port (11) at the top end, the screening box (1) is internally provided with a screen one (12), a screen two (13) and a guide plate (14) from top to bottom, the screen two (13) is provided with two support blocks one (15) and support blocks two (16) at the upper and lower ends, the two support blocks one (15) and support blocks two (16) are fixedly arranged on the two sides of the inner wall of the screening box (1) and are fixedly provided with a support rod (17) between them, the two support rods (17) are arranged through the screen two (13), the screen two (13) is provided with a vibrating mechanism (2), the guide plate (14) is hinged with a discharge plate (18) at one end, the screening box (1) is internally provided with a driving mechanism (3) for driving the guide plate (14) to be inclined, the screening box (1) is provided with a discharge port (19) on one side, and the discharge plate (18) is located in the discharge port (19).
3. A plastic powder classifying and screening device according to claim 1, characterized in that, The aperture of the screen one (12) is larger than that of the screen two (13).
4. A plastic powder classifying and screening device according to claim 3, characterized in that, The vibrating mechanism (2) comprises a vibrating motor (21), the vibrating motor (21) is fixedly arranged at the bottom end of the screen two (13), springs (22) are fixedly arranged between the screen two (13) and the two support blocks one (15) and support blocks two (16), and the springs (22) are wound on the outer wall of the support rod (17).
5. A plastic powder classifying and screening device according to claim 1, wherein, The driving mechanism (3) comprises a fixed block (31) fixedly arranged at the bottom end of the screening box (1), a gas cylinder (32) is hinged in the fixed block (31), a driving block (33) is hinged on the piston rod of the gas cylinder (32), and the driving block (33) is fixed with the bottom end of the guide plate (14).
6. A plastic powder classifying and screening device according to claim 1, characterized in that, The discharge plate (18) is arranged in an inclined manner.