Efficient grading and screening device for plastic particles

Abstract

The utility model relates to the technical field of screening equipment, and discloses an efficient plastic particle grading screening device which comprises a base, a motor fixedly installed on the base, a screening box fixedly installed at the position, close to the motor, of the base, a second discharging hopper fixedly installed on one side of the screening box, and a feeding pipe fixedly installed on the other side of the screening box. A rotating shaft is rotationally connected to the second discharging hopper and the side, away from the second discharging hopper, of the screening box, and a screening roller is fixedly mounted on the outer side of the rotating shaft through multiple supports. The two slow-flow material turning mechanisms are arranged on the rotating shaft located in the screening roller, and each slow-flow material turning mechanism is composed of a hoop, a first hanging rod, a second hanging rod, a shaft plate, a material turning wheel and other structures, so that the material turning wheels abut against the inner side of the screening roller when the screening roller rotates and rotate through the screening roller, and then passing plastic particles are turned; the situation that the upper-layer parts of plastic particles conveyed and screened through the screening roller cannot be effectively screened is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to screening equipment technical field, especially in kind of plastic particle high -efficient grading screening device. BACKGROUND

[0002] Plastic particles in the production process, due to process factors, its particle size difference exists, in order to ensure the consistency of product quality, different plastic products have strict requirements on plastic particle size, such as making precision plastic parts, and the uniform plastic particles can ensure the precision and performance stability of the parts, through screening, the particles that do not meet the particle size standard can be removed, so that the size of plastic particles is uniform, and the quality stability of plastic products is improved.

[0003] When the plastic particles are screened by the drum screening equipment, unstable feeding amount control can cause the upper layer of plastic particles in the screening drum to be unable to be effectively screened, that is, when the feeding amount is too large, the screening capacity of the screening drum is limited, and a large amount of plastic particles will flow into the drum in a short time, and the screening mainly relies on the particles to be rolled and slid in the drum to be screened through the screen, and too much accumulation can make the upper layer of particles difficult to fully contact the screen, so that the particles cannot be effectively rolled and screened, and the particles that are not effectively screened can be mixed into the finished product, so that the plastic particle size is inconsistent, which affects the quality of the subsequent plastic products, and because part of the particles are not completely screened, the finished product needs to be screened again, which increases the production process and time cost, and reduces the overall production efficiency. UTILITARIAN CONTENT

[0004] The utility model aims at providing a kind of plastic particle high -efficient grading screening device, which can effectively solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0006] A kind of plastic particle high -efficient grading screening device, including base, the motor is fixedly installed on the base, the screening box is fixedly installed on the base near the motor, the second discharge hopper is fixedly installed on the one side of the screening box, the feeding pipe is fixedly installed on the other side of the screening box, the second discharge hopper is rotatably connected with the shaft on the side of the screening box away from the second discharge hopper, the screening drum is fixedly installed on the outer side of the shaft by multiple supports, the shaft in the screening drum is also movably installed with the slow-flowing material turning mechanism, the slow-flowing material turning mechanism includes two clamps, the first boom is movably installed at the lower end of the two clamps, the second boom is movably installed at the lower end of the first boom, the shaft plate is fixedly installed at the lower end of the second boom, and the material turning wheel is movably installed on the shaft plate.

[0007] As a further preferred embodiment of the utility model, the output end of the motor is fixedly installed with a first sprocket, one end of the rotating shaft is fixedly installed with a second sprocket, and the first sprocket and the second sprocket are connected through a chain transmission.

[0008] As a further preferred embodiment of the utility model, two guide grooves are formed in the outer side of the rotating shaft, and the guide grooves are formed in the outer side of the first discharge hopper, so that the rotating shaft can rotate in the hoop without causing the hoop to deviate.

[0009] As a further preferred embodiment of the utility model, a plurality of rolling balls are rotatably installed on the inner side of the hoop, the two hoops are inserted and installed on the rotating shaft, and the plurality of rolling balls are also in contact with the guide grooves, so that the inner side of the hoop is inserted and installed on the rotating shaft through the plurality of rolling balls, and when the rotating shaft rotates, the hoop will not rotate along with the rotating shaft due to the sinking gravity of the first lifting rod, the second lifting rod and the material turning wheel.

[0010] As a further preferred embodiment of the utility model, an expansion groove is formed in the lower end of the first lifting rod, a limiting screw is screw-connected in the inner side of the expansion groove, and the upper end of the first lifting rod is inserted and installed on the connecting bolt at the lower end of the two hoops through a lifting ring.

[0011] As a further preferred embodiment of the utility model, a limiting groove is formed in the outer side of the second lifting rod, the upper end of the second lifting rod is inserted and installed in the expansion groove, one end of the limiting screw extends into the limiting groove, and a compression spring is also inserted and installed in the expansion groove, so that the second lifting rod is inserted and installed in the expansion groove and is subjected to the force of the compression spring, the material turning wheel is always in contact with the inner side of the screening drum, and the material turning wheel is driven to rotate when the screening drum rotates.

[0012] As a further preferred embodiment of the utility model, the material turning wheel further comprises two conical plates, a fixed shaft is fixedly connected between the two conical plates, a partition plate is fixedly installed on the outer side of the fixed shaft, a plurality of material turning plates are fixedly connected between the conical plate and the adjacent partition plate, and the fixed shaft between the two partition plates is rotatably installed on the shaft plate, the conical plate and the material turning plate are in contact with the inner side of the screening drum, and the conical plate and the material turning plate are rotated by the rotation of the screening drum, so that the material turning plates turn the plastic particles passing through, thereby preventing the upper layer of plastic particles from being effectively screened.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In the utility model, two slow flow material turning mechanisms are arranged on the rotating shaft in the screening roller, and the slow flow material turning mechanism is composed of a hoop, a first suspender, a second suspender and an axle plate, a material turning wheel and the like structure, can make the material turning wheel abut against the inner side of the screening roller when the screening roller rotates and rotate by the screening roller, and further turn the plastic particles, so as to prevent the upper part of the plastic particles conveyed and screened by the screening roller from being effectively screened. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the main body structure schematic diagram of the utility model;

[0016] Figure 2 It is the screening box structure schematic diagram of the utility model;

[0017] Figure 3 It is the slow flow material turning mechanism installation structure schematic diagram of the utility model;

[0018] Figure 4 It is the slow flow material turning mechanism sectional view of the utility model;

[0019] Figure 5 It is Figure 4 The enlarged view of A in the middle.

[0020] In the drawing: 1, base; 2, motor; 3, screening box; 4, rotating shaft; 5, first discharge hopper; 6, screening roller; 7, support; 8, inlet pipe; 9, slow flow material turning mechanism; 10, hoop; 11, first suspender; 12, second suspender; 13, axle plate; 14, material turning wheel; 15, first sprocket; 16, second sprocket; 17, guide groove; 18, ball; 19, telescopic groove; 20, limiting screw; 21, limiting groove; 22, conical surface plate; 23, fixed shaft; 24, material turning plate; 25, second discharge hopper; 26, partition. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0022] For example, Figures 1-5As shown, the utility model provides a kind of plastic particle high-efficiency grading screening device, including base 1, motor 2 is fixedly installed on base 1, screening box 3 is fixedly installed on base 1 near motor 2, second discharge hopper 25 is fixedly installed on one side of screening box 3, feeding pipe 8 is fixedly installed on the other side of screening box 3, second discharge hopper 25 is rotatably connected with the side of screening box 3 away from second discharge hopper 25, and the outer side of rotating shaft 4 is fixedly installed with screening drum 6 by multiple supports 7, and rotating shaft 4 located in screening drum 6 is further movably installed with slow flow material turning mechanism 9, slow flow material turning mechanism 9 includes two hoops 10, first boom 11 is movably installed at the lower end of two hoops 10, second boom 12 is movably installed at the lower end of first boom 11, shaft plate 13 is fixedly installed at the lower end of second boom 12, material turning wheel 14 is movably installed on shaft plate 13, and the output end of motor 2 is fixedly installed with first sprocket 15, one end of rotating shaft 4 is fixedly installed with second sprocket 16, and first sprocket 15 and second sprocket 16 are connected by chain transmission.

[0023] As Figure 3 As shown, two guide grooves 17 are formed on the outer side of rotating shaft 4, the guide groove 17 is formed on the outer side of first discharge hopper 5, which can facilitate the rotation of rotating shaft 4 in hoop 10 and prevent the position deviation of hoop 10, a plurality of ball bearings 18 are rotatably installed on the inner side of hoop 10, two hoops 10 are inserted and installed on rotating shaft 4, and a plurality of ball bearings 18 are also in contact with guide grooves 17, hoop 10 is inserted and installed on rotating shaft 4 by a plurality of ball bearings 18 on the inner side, so that when rotating shaft 4 rotates, the sinking gravity of hoop 10 by first boom 11, second boom 12 and material turning wheel 14 will not rotate together with rotating shaft 4.

[0024] As Figures 3-5As shown, the first boom 11 lower end is provided with a telescopic slot 19, the inside of the telescopic slot 19 is threadedly connected with a limiting screw 20, and the upper end of the first boom 11 is installed on the connecting bolt of the lower end of the two hoops 10 through a lifting ring, the outside of the second boom 12 is provided with a limiting slot 21, the upper end of the second boom 12 is installed in the telescopic slot 19, one end of the limiting screw 20 extends into the limiting slot 21, and a compression spring is also installed in the telescopic slot 19, and the second boom 12 is installed in the telescopic slot 19 by the action force of the compression spring, so that the material turning wheel 14 always abuts against the inside of the screening drum 6, thereby driving the material turning wheel 14 to rotate when the screening drum 6 rotates, and the material turning wheel 14 further comprises two conical face plates 22, the two conical face plates 22 are fixedly connected with a fixed shaft 23, the fixed shaft 23 is fixedly installed with a partition plate 26, a plurality of material turning plates 24 are fixedly connected between the conical face plate 22 and the adjacent partition plate 26, and the fixed shaft 23 between the two partition plates 26 is rotatably installed on the shaft plate 13, and after the conical face plate 22 and the material turning plate 24 abut against the inside of the screening drum 6, they will rotate through the rotation of the screening drum 6, thereby turning the passing plastic particles by means of the material turning plate 24, so as to prevent the upper layer of plastic particles from being effectively screened.

[0025] It should be noted that the utility model is a kind of plastic particle high-efficiency grading screening device, when screening plastic particles, first start motor 2, and the power output of motor 2 drives first sprocket 15 to rotate. First sprocket 15 drives second sprocket 16 through chain transmission, so that rotating shaft 4 rotates, and then drives screening drum 6 to rotate around the shaft, and then plastic particles are input into screening drum 6 from inlet pipe 8, and plastic particles can be transported and screened to the direction of second discharge hopper 25 by screening drum 6, when plastic particles move to the direction of second discharge hopper 25 in screening drum 6, because the hoops 10 are installed in the guide groove 17 of rotating shaft 4 through the inside ball 18, it is ensured that the hoops 10 are stable and do not rotate with rotating shaft 4, the upper end of second boom 12 is installed in telescopic slot 19, and then the elasticity of compression spring is combined, so that material turning wheel 14 always closely adheres to the inside of screening drum 6, and material turning wheel 14 is driven to rotate with the rotation of screening drum 6. The conical face plate 22 and material turning plate 24 of material turning wheel 14 abut against the inner wall of screening drum 6, and continuously turn the passing plastic particles in the rotating process, so that the problem that plastic particles are not effectively screened due to unstable feeding amount and accumulated in the upper layer of screening drum 6 can be avoided.

[0026] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency grading and screening device for plastic granules, characterized in that: The system includes a base (1), on which a motor (2) is fixedly mounted. A screening box (3) is fixedly mounted on the base (1) near the motor (2). A second discharge hopper (25) is fixedly mounted on one side of the screening box (3), and an inlet pipe (8) is fixedly mounted on the other side of the screening box (3). A rotating shaft (4) is rotatably connected to the side of the screening box (3) away from the second discharge hopper (25). Multiple supports (7) pass through the outer side of the rotating shaft (4). A screening drum (6) is fixedly installed. A slow-flow turning mechanism (9) is also movably installed on the rotating shaft (4) located inside the screening drum (6). The slow-flow turning mechanism (9) includes two clamps (10). A first lifting rod (11) is movably installed at the lower end of the two clamps (10). A second lifting rod (12) is movably installed at the lower end of the first lifting rod (11). A shaft plate (13) is fixedly installed at the lower end of the second lifting rod (12). A turning wheel (14) is movably installed on the shaft plate (13).

2. The high-efficiency grading and screening device for plastic granules according to claim 1, characterized in that: The output end of the motor (2) is fixedly equipped with a first sprocket (15), and one end of the rotating shaft (4) is fixedly equipped with a second sprocket (16). The first sprocket (15) and the second sprocket (16) are connected by chain drive.

3. The high-efficiency grading and screening device for plastic granules according to claim 1, characterized in that: Two guide grooves (17) are provided on the outer side of the rotating shaft (4).

4. The high-efficiency grading and screening device for plastic granules according to claim 3, characterized in that: Multiple balls (18) are rotatably installed inside the clamp (10), and two clamps (10) are interlocked on the rotating shaft (4), and the multiple balls (18) also abut against the guide groove (17).

5. The high-efficiency grading and screening device for plastic granules according to claim 1, characterized in that: The lower end of the first rod (11) is provided with a telescopic groove (19), and the inner side of the telescopic groove (19) is threaded with a limit screw (20). The upper end of the first rod (11) is installed on the connecting bolts at the lower end of the two clamps (10) through a lifting ring.

6. The high-efficiency grading and screening device for plastic granules according to claim 5, characterized in that: A limiting groove (21) is provided on the outer side of the second rod (12). The upper end of the second rod (12) is inserted into the telescopic groove (19). One end of the limiting screw (20) extends into the limiting groove (21). A compression spring is also inserted into the telescopic groove (19).

7. The high-efficiency grading and screening device for plastic granules according to claim 1, characterized in that: The turning wheel (14) also includes two conical panels (22), a fixed shaft (23) is fixedly connected between the two conical panels (22), a partition (26) is fixedly installed on the outside of the fixed shaft (23), a plurality of turning plates (24) are fixedly connected between the conical panels (22) and the adjacent partition (26), and the fixed shaft (23) located between the two partitions (26) is rotatably installed on the shaft plate (13).

Images