Molding powder grading and screening device

Abstract

The utility model discloses a molding powder grading and screening device, and particularly relates to the technical field of molding powder screening, the molding powder grading and screening device comprises a box body, a filter screen I and a filter screen II, a trapezoidal block II is pulled to move towards a fixed plate, then an insertion plate is pulled out from a long rod, then the filter screen I and the filter screen II are driven to move out, and then two rotating plates are rotated and attached together; two rotating plates are attached together and are consistent with an inserting plate in width, so that the two rotating plates can be conveniently moved out of a rectangular groove, a filter screen I and a filter screen II are separated, the filter screen I and the filter screen II are conveniently cleaned, the filter screen I and the filter screen II are vibrated, and molding powder is conveniently subjected to multi-stage filtration, and then a long column at the top of a C-shaped plate II and a push plate can be pulled, so that the molding powder can be conveniently filtered. And a long column and a push plate at the top of a first C-shaped plate can be pulled at any time, then molding powder at the top of a second filter screen can be pushed to move into a second drawer, and the molding powder filtered twice can fall into the first drawer.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic powder screening, in particular to a plastic powder classification and screening device. Background Technique

[0002] Plastic powder classification and screening generally refers to the process of separating plastic powder into different grades according to certain characteristics of plastic powder particles, such as particle size, shape, density, etc., through specific equipment and methods. In the production process of plastic powder, due to factors such as equipment precision, there may be a large error in the particle size of the ground plastic powder. And the particle size of plastic powder has an important impact on its performance (such as the performance of coatings). In order to ensure product quality, it is necessary to keep the particle size of plastic powder within a certain range, which requires classification and screening.

[0003] A Chinese patent with the publication number CN205868745U discloses the technical field of an efficient plastic powder screening device. By combining a first screening device, a first sieve plate, a second screening device, a second sieve plate, a driving wheel and a motor, etc., the scraper in the screening device can ensure that the plastic powder is dispersed on the sieve plate and prevent the material from accumulating on the inner wall of the cabinet, thereby ensuring thorough screening of the plastic powder. The three discharge hoppers screen out plastic powder of large, medium and small sizes from top to bottom in sequence, which can classify the plastic powder, is easy to operate and has high screening efficiency.

[0004] However, the sieve plate in the plastic powder classification and screening device in the above solution is fixedly installed in the cabinet. The sieve plate will be blocked after long-term use. If not cleaned in time, it will affect the filtering effect.

[0005] Therefore, it is necessary to invent a plastic powder classification and screening device. Content of the Utility Model

[0006] The purpose of the utility model is to provide a plastic powder classification and screening device to solve the problems put forward in the above background technique.

[0007] To achieve the above object, the present utility model provides the following technical solution: A plastic powder classification and screening device, including a box body, a first filter screen and a second filter screen. On both side walls of the inner cavity of the box body, symmetrically distributed long rods are slidably arranged. At the bottom of the first filter screen, symmetrically distributed vertical plates are fixedly arranged. At the bottom of the vertical plates, inserting plates are fixedly arranged. At the bottom of the inserting plates, symmetrically distributed rectangular plates are fixedly arranged. Between the two rectangular plates, symmetrically distributed rotating shafts are rotatably arranged. On the outer side of the rotating shafts, rotating plates are fixedly arranged. At both ends of the rotating plates, torsion springs are fixedly arranged. The other ends of the torsion springs are fixedly connected with the rectangular plates. On the top of the second filter screen, symmetrically distributed rectangular grooves are opened. The inserting plates penetrate through the rectangular grooves. On the top of the long rods, T-shaped grooves are opened. The inserting plates and the rotating plates are movably clamped in the T-shaped grooves. On one side of one of the rotating plates, a first trapezoidal block is fixedly arranged. On both sides of the bottom of the second filter screen, symmetrically distributed fixing plates are fixedly arranged. On the sides of the two fixing plates away from each other, third springs are fixedly arranged. The other ends of the third springs are fixedly arranged with second trapezoidal blocks.

[0008] Preferably, a motor is fixedly arranged on one side of the box body. The output shaft of the motor penetrates through the box body and a cam is fixedly arranged at its end.

[0009] Preferably, on both side walls of the inner cavity of the box body, symmetrically distributed square plates are fixedly arranged. On the top of the square plates, second springs are fixedly arranged. The other ends of the second springs are fixedly connected with the long rods.

[0010] Preferably, a through groove is opened on one side of the box body. A box door is rotatably arranged on one side of the box body. At the bottom end of one side of the box door, a short plate is fixedly arranged. A screw is threadedly inserted into the top of the short plate. A backing plate is fixedly arranged on one side of the box body. The screw is movably inserted into the backing plate.

[0011] Preferably, a first discharge port and a second discharge port are opened on the other side of the box body. On the other side of the box body, a first C-shaped plate and a second C-shaped plate are fixedly arranged. A second drawer and a third drawer are respectively slidably arranged in the first C-shaped plate and the second C-shaped plate.

[0012] Preferably, at both ends of the tops of the first C-shaped plate and the second C-shaped plate, symmetrically distributed first spring telescopic rods are fixedly arranged. The other ends of the first spring telescopic rods are fixedly arranged with cross plates. A long column is slidably arranged between the two cross plates. One end of the long column penetrates through one of the cross plates and a push plate is fixedly arranged at its end.

[0013] Preferably, a feed inlet is opened on the top of the box body. A groove is opened at the bottom of the box body. A first drawer is slidably arranged in the groove.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. When it is necessary to clean Filter Mesh 1 and Filter Mesh 2, pull the trapezoidal block 2 towards the fixed plate, then pull out the insertion plate from the long rod, thereby driving Filter Mesh 1 and Filter Mesh 2 out. Then, the two rotating plates can be rotated downward, causing the torsion spring to rotate and the two rotating plates to fit together. The width of the two rotating plates fitting together is the same as that of the insertion plate, which is convenient for removing from the rectangular groove. Thus, Filter Mesh 1 and Filter Mesh 2 can be separated, facilitating the cleaning of Filter Mesh 1 and Filter Mesh 2.

[0016] 2. The plastic powder enters the box through the feed port. Filter Mesh 1 and Filter Mesh 2 vibrate, and the plastic powder is filtered in multiple stages through Filter Mesh 1 and Filter Mesh 2. Then, the long column and the push plate at the top of the C-shaped plate 2 can be pulled, thereby pushing the plastic powder on top of Filter Mesh 1 into the drawer 3. At any time, the long column and the push plate at the top of the C-shaped plate 1 can be pulled, thereby pushing the plastic powder on top of Filter Mesh 2 into the drawer 2. The plastic powder that has been filtered twice will fall into the drawer 1. Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the overall structure provided by the present utility model;

[0018] Figure 2 provided by the present utility model Figure 1 Schematic enlarged view of the structure at A in

[0019] Figure 3 It is a schematic diagram of the motor structure provided by the present utility model;

[0020] Figure 4 It is a schematic diagram of the push plate structure provided by the present utility model;

[0021] Figure 5 It is a schematic diagram of the Filter Mesh 1 structure provided by the present utility model;

[0022] Figure 6 provided by the present utility model Figure 5 Schematic enlarged view of the structure at B in

[0023] In the figure: 1. Box body; 111. Feeding port; 112. Base plate; 12. Drawer one; 13. C-shaped plate one; 131. Drawer two; 135. Discharge port one; 14. C-shaped plate two; 141. Drawer three; 142. Discharge port two; 145. Spring telescopic rod one; 146. Horizontal plate; 147. Long column; 148. Pushing plate; 15. Box door; 16. Short plate; 161. Screw; 17. Through groove; 18. Square plate; 181. Spring two; 19. Long rod; 191. T-shaped groove; 21. Filter screen one; 22. Vertical plate; 221. Insertion plate; 222. Rectangular plate; 223. Rotating shaft; 224. Torsion spring; 225. Rotating plate; 226. Trapezoidal block one; 24. Filter screen two; 241. Rectangular groove; 242. Fixed plate; 243. Spring three; 244. Trapezoidal block two; 31. Motor; 32. Cam. Detailed implementation manner

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Embodiment: As Figures 1-6 shown, the present invention provides a plastic powder classification and screening device, including a box body 1, a filter screen one 21 and a filter screen two 24. Symmetrically distributed long rods 19 are slidably arranged on both inner side walls of the box body 1. The bottom of the filter screen one 21 is fixedly provided with symmetrically distributed vertical plates 22. The bottom of the vertical plate 22 is fixedly provided with an insertion plate 221. The bottom of the insertion plate 221 is fixedly provided with symmetrically distributed rectangular plates 222. Symmetrically distributed rotating shafts 223 are rotatably arranged between the two rectangular plates 222. The outer side of the rotating shaft 223 is fixedly provided with a rotating plate 225. Torsion springs 224 are fixedly arranged at both ends of the rotating plate 225. The other end of the torsion spring 224 is fixedly connected to the rectangular plate 222. Symmetrically distributed rectangular grooves 241 are opened at the top of the filter screen two 24. The insertion plate 221 penetrates through the rectangular groove 241. A T-shaped groove 191 is opened at the top of the long rod 19. The insertion plate 221 and the rotating plate 225 are movably clamped in the T-shaped groove 191. A trapezoidal block one 226 is fixedly arranged on one side of one of the rotating plates 225. Symmetrically distributed fixed plates 242 are fixedly arranged at the bottom of the filter screen two 24. Spring three 243 is fixedly arranged on the side of each of the two fixed plates 242 away from each other. The other end of the spring three 243 is fixedly provided with a trapezoidal block two 244.

[0026] Furthermore, a motor 31 is fixedly arranged on one side of the box body 1. The output shaft of the motor 31 penetrates through the box body 1 and a cam 32 is fixedly arranged at its end.

[0027] Further, symmetrically distributed square plates 18 are fixedly arranged on both inner side walls of the box body 1. A second spring 181 is fixedly arranged on the top of the square plate 18, and the other end of the second spring 181 is fixedly connected to the long rod 19, facilitating the sliding of the long rod 19.

[0028] Further, a through groove 17 is formed on one side of the box body 1. A box door 15 is rotatably arranged on one side of the box body 1. A short plate 16 is fixedly arranged at the bottom end of one side of the box door 15. A screw 161 is threadedly inserted into the top of the short plate 16. A backing plate 112 is fixedly arranged on one side of the box body 1, and the screw 161 is movably inserted into the backing plate 112, facilitating the fixing of the box door 15.

[0029] Further, a first discharge port 135 and a second discharge port 142 are formed on the other side of the box body 1. A first C-shaped plate 13 and a second C-shaped plate 14 are fixedly arranged on the other side of the box body 1. A second drawer 131 and a third drawer 141 are respectively slidably arranged in the first C-shaped plate 13 and the second C-shaped plate 14.

[0030] Further, symmetrically distributed first spring telescopic rods 145 are fixedly arranged at both top ends of the first C-shaped plate 13 and the second C-shaped plate 14. The other end of the first spring telescopic rod 145 is fixedly connected to a cross plate 146. A long column 147 is slidably arranged between the two cross plates 146. One end of the long column 147 penetrates through one of the cross plates 146 and a push plate 148 is fixedly arranged at its end, facilitating the pushing of the plastic powder.

[0031] Further, a feed inlet 111 is formed on the top of the box body 1. A groove is formed on the bottom of the box body 1. A first drawer 12 is slidably arranged in the groove.

[0032] Working principle: When this solution is in use, first, the plastic powder enters the box body 1 through the feed inlet 111. The motor 31 drives the cam 32 to rotate. When the cam 32 rotates upward, it can contact and lift the long rod 19, thereby pulling the second spring 181. When the cam 32 does not contact the long rod 19, the second spring 181 resets and drives the long rod 19 to reset. In this way, the first filter screen 21 and the second filter screen 24 can be vibrated, and the plastic powder is multi-stage filtered through the first filter screen 21 and the second filter screen 24. Then, the long column 147 and the push plate 148 at the top of the second C-shaped plate 14 can be pulled, and thus the plastic powder on the top of the first filter screen 21 can be pushed into the third drawer 141. At any time, the long column 147 and the push plate 148 at the top of the first C-shaped plate 13 can be pulled, and thus the plastic powder on the top of the second filter screen 24 can be pushed into the second drawer 131. The plastic powder that has been filtered twice will fall into the first drawer 12;

[0033] When it is necessary to clean the first filter screen 21 and the second filter screen 24, the screw 161 can be rotated to be removed from the backing plate 112, and then the cabinet door 15 can be rotated and opened. Then, the second trapezoidal block 244 can be pulled to move towards the fixing plate 242, and then the insertion plate 221 can be pulled out from the long rod 19, thereby driving the first filter screen 21 and the second filter screen 24 to be removed. Then, the two rotating plates 225 can be rotated downward, thereby rotating the torsion spring 224 and making the two rotating plates 225 fit together. The two rotating plates 225 fitting together is consistent with the width of the insertion plate 221, which is convenient for being removed from the rectangular groove 241. Furthermore, the first filter screen 21 and the second filter screen 24 can be separated, which is convenient for cleaning the first filter screen 21 and the second filter screen 24.

[0034] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A powder classification and screening device, comprising a box body (1), a first filter screen (21) and a second filter screen (24), characterized in that: On both side walls of the inner cavity of the box body (1), symmetrically distributed long rods (19) are slidably arranged. At the bottom of the first filter screen (21), symmetrically distributed vertical plates (22) are fixedly arranged. At the bottom of the vertical plate (22), an insertion plate (221) is fixedly arranged. At the bottom of the insertion plate (221), symmetrically distributed rectangular plates (222) are fixedly arranged. Between the two rectangular plates (222), symmetrically distributed rotating shafts (223) are rotatably arranged. On the outer side of the rotating shaft (223), a rotating plate (225) is fixedly arranged. At both ends of the rotating plate (225), torsion springs (224) are fixedly arranged. The other end of the torsion spring (224) is fixedly connected to the rectangular plate (222). On the top of the second filter screen (24), symmetrically distributed rectangular grooves (241) are opened. The insertion plate (221) penetrates through the rectangular groove (241). On the top of the long rod (19), a T-shaped groove (191) is opened. The insertion plate (221) and the rotating plate (225) are movably clamped in the T-shaped groove (191). On one side of one of the rotating plates (225), a first trapezoidal block (226) is fixedly arranged. At the bottom of the second filter screen (24), symmetrically distributed fixing plates (242) are fixedly arranged. On the side of the two fixing plates (242) away from each other, a third spring (243) is fixedly arranged. The other end of the third spring (243) is fixedly arranged with a second trapezoidal block (244).

2. The powder classification and screening device according to claim 1, characterized in that: On one side of the box body (1), a motor (31) is fixedly arranged. The output shaft of the motor (31) penetrates through the box body (1) and a cam (32) is fixedly arranged at its end.

3. The powder classification and screening device according to claim 1, wherein: On both side walls of the inner cavity of the box body (1), symmetrically distributed square plates (18) are fixedly arranged. On the top of the square plate (18), a second spring (181) is fixedly arranged. The other end of the second spring (181) is fixedly connected to the long rod (19).

4. A plastic powder classification and screening device according to claim 1, characterized in that: On one side of the box body (1), a through groove (17) is opened. On one side of the box body (1), a box door (15) is rotatably arranged. At the bottom end of one side of the box door (15), a short plate (16) is fixedly arranged. On the top of the short plate (16), a screw (161) is threadedly inserted. On one side of the box body (1), a backing plate (112) is fixedly arranged. The screw (161) is movably inserted into the backing plate (112).

5. The powder grading and screening device according to claim 1, wherein: On the other side of the box body (1), a first discharge port (135) and a second discharge port (142) are opened. On the other side of the box body (1), a first C-shaped plate (13) and a second C-shaped plate (14) are fixedly arranged. A second drawer (131) and a third drawer (141) are respectively slidably arranged in the first C-shaped plate (13) and the second C-shaped plate (14).

6. The powder classification and screening device according to claim 5, characterized in that: At both ends of the top of the first C-shaped plate (13) and the second C-shaped plate (14), symmetrically distributed first spring telescopic rods (145) are fixedly arranged. The other end of the first spring telescopic rod (145) is fixedly arranged with a cross plate (146). Between the two cross plates (146), a long column (147) is slidably arranged. One end of the long column (147) penetrates through one of the cross plates (146) and a push plate (148) is fixedly arranged at its end.

7. The powder classification and screening device according to claim 1, wherein: The top of the box body (1) is provided with a feed inlet (111), the bottom of the box body (1) is provided with a groove, and a first drawer (12) is slidably arranged in the groove.

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