Screening device for modified plastic master batch
By designing a multi-stage screen and suction components in the screening device, the problem of removing powder impurities during the screening process of modified plastic masterbatch was solved, thereby improving the purity of the masterbatch.
Patent Information
- Application Number
- CN202520161159.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-01-23
AI Technical Summary
In the existing technology, during the screening process of modified plastic masterbatch, masterbatch powder is difficult to remove effectively, resulting in a decrease in the purity of the masterbatch after screening.
Design a screening device comprising multiple screens, a vibrating component, and a suction component. Remove powder impurities during the screening process using a suction pipe and a fan system. Perform multi-stage filtration using multi-stage screens and a filter component to ensure that powder impurities are effectively collected.
This improved the purity of the masterbatch after screening, ensuring that there were almost no powdery impurities remaining on the surface of the masterbatch, thus enhancing the quality of the masterbatch.
Smart Images
Figure CN223948275U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to modified plastic masterbatch processing technical field especially, a kind of screening device for modified plastic masterbatch. BACKGROUND
[0002] In the modified plastic processing and forming process, in order to be convenient for operation, the required various auxiliary agents, fillers and a small amount of carrier resin are mixed and kneaded first, and the prepared granules are called masterbatch. After the masterbatch is prepared, in order to realize the classified use of the masterbatch, the masterbatch often needs to be screened. In the prior art, the masterbatch is often directly screened by screen or sieve plate to obtain granular masterbatch of different particle sizes. However, because the masterbatch contains some masterbatch powder on the surface after preparation, the fine powder will diffuse in the screening chamber during the masterbatch vibration screening process, and it is difficult to remove the fine powder through the screen, so that the surface of the screened masterbatch still contains the fine powder impurities, reducing the purity of the masterbatch. SUMMARY
[0003] The utility model aims at providing a kind of screening device for modified plastic masterbatch, to at least reach the purpose of improving the purity of masterbatch after screening.
[0004] The utility model aims at providing a kind of screening device for modified plastic masterbatch, to at least reach the purpose of improving the purity of masterbatch after screening.
[0005] A kind of screening device for modified plastic masterbatch, including screening chamber, multiple screens are sequentially arranged in the screening chamber from top to bottom, connecting rod for fixedly connecting multiple screens, vibration assembly for driving the screen to vibrate, and suction assembly connected with the screening chamber;The suction assembly includes first suction pipe communicated with the side wall of the screening chamber, filter assembly connected with the air outlet end of the first suction pipe, second suction pipe connected with the air outlet end of the filter assembly, and fan connected with the air outlet end of the second suction pipe;The number of the first suction pipe is same with the number of screen, and a first suction pipe is arranged above each screen;The screen aperture of multiple screens decreases sequentially from top to bottom.
[0006] Preferably, the vibration assembly includes a square groove provided on the side wall of the screening chamber, a plurality of slide rods provided in the square groove, a rotating shaft horizontally provided below the lowermost screen, a motor provided on the side wall of the screening chamber and connected with the rotating shaft, and an eccentric wheel sleeved on the rotating shaft;Multiple screens are slidably sleeved on the slide rods;Two springs are arranged on each slide rod, and the two springs are arranged between the top wall of the square groove and the uppermost screen, and between the bottom wall of the square groove and the lowermost screen.
[0007] Preferably, the air inlet end of each of the first suction pipes is provided with a first filter screen, and the mesh size of the first filter screen is smaller than that of the lowermost screen.
[0008] Preferably, the sidewall of the screening chamber and above each screen is provided with an air inlet, and each air inlet is provided with a second filter screen, and the mesh size of the second filter screen is smaller than that of the lowermost screen.
[0009] Preferably, the filtering assembly comprises a filtering chamber, a third filter screen arranged in the filtering chamber, and a second supporting leg arranged at the bottom end of the filtering chamber.
[0010] Preferably, the third filter screen is vertically arranged in the filtering chamber, the first suction pipe and the second suction pipe are respectively arranged on the two sides of the third filter screen, the bottom wall of the filtering chamber and between the third filter screen and the first suction pipe is provided with a first discharge port, and the lower side of the first discharge port is provided with a discharge box.
[0011] Preferably, the discharge box and the filtering chamber are connected through bolts.
[0012] Preferably, the bottom wall of the screening chamber is provided with a first supporting leg, and the bottom wall of the screening chamber is provided with a second discharge port.
[0013] Compared with the prior art, the utility model has the beneficial effects as follows:
[0014] By installing the suction assembly comprising the first suction pipe, the second suction pipe, the filtering assembly and the fan on the sidewall of the screening chamber, when the vibration screening operation is carried out in the screening chamber, the fan can be turned on to suck the powder impurities diffused into the screening chamber, and the filtered powder impurities are blocked by the filtering assembly, so that the powder impurities are collected. By arranging one first suction pipe above each screen, the screening area above each screen can be respectively sucked, so that the powder impurities diffused in the screening chamber are sucked to the maximum extent, and the suction efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a sectional structure schematic view of the front direction of the utility model;
[0016] Figure 2 It is a sectional structure schematic view of the front direction of the utility model; Figure 1 It is a sectional structure schematic view of the front direction of the utility model;
[0017] Figure 3 It is a sectional structure schematic view of the front direction of the utility model; Figure 1 It is a sectional structure schematic view of the front direction of the utility model;
[0018] In the diagram: 1-screening chamber, 2-screen, 3-connecting rod, 4-first suction pipe, 5-second suction pipe, 6-square groove, 7-sliding rod, 8-rotating shaft, 10-motor, 9-eccentric wheel, 11-spring, 12-first filter screen, 13-second filter screen, 14-filtering chamber, 15-third filter screen, 16-discharge box, 17-bolt, 18-second discharge port, 20-first discharge port. Detailed Implementation
[0019] Example 1
[0020] A screening device for modified plastic masterbatch, such as Figures 1-2 As shown, the system includes a screening chamber 1, multiple screens 2 arranged sequentially from top to bottom within the screening chamber 1, a connecting rod 3 that fixes the multiple screens 2 together (the connecting rod 3 can fix the multiple screens 2 to ensure that the multiple screens 2 vibrate synchronously), a vibration assembly that drives the screens 2 to vibrate, and a suction assembly connected to the screening chamber 1; Figure 1 and Figure 3 As shown, the suction assembly includes a first suction pipe 4 connected to the side wall of the screening chamber 1, a filter assembly connected to the air outlet of the first suction pipe 4, a second suction pipe 5 connected to the air outlet of the filter assembly, and a fan (this fan is a negative pressure fan or an exhaust fan, etc., capable of achieving the purpose of air extraction) connected to the air outlet of the second suction pipe 5. The fan can be installed on the outer wall of the screening chamber 1 or the outer wall of the filter chamber 14. The second suction pipe 5 is a flexible hose. The number of first suction pipes 4 is the same as the number of screens 2, and each screen 2 is provided with a first suction pipe 4 above it. The aperture of the multiple screens 2 decreases from top to bottom.
[0021] Furthermore, such as Figure 1 and Figure 2 As shown, the vibration assembly includes a square groove 6 disposed on the side wall of the screening chamber 1, multiple sliding rods 7 disposed within the square groove 6, a rotating shaft 8 horizontally disposed below the lowest screen 2, a motor 10 disposed on the side wall of the screening chamber 1 and connected to the rotating shaft 8, and an eccentric wheel 9 sleeved on the rotating shaft 8; the multiple screens 2 are slidably sleeved on the sliding rods 7; as shown Figure 1 As shown, each of the sliding rods 7 is equipped with two springs 11, which are respectively positioned between the top wall of the square groove 6 and the uppermost screen 2, and between the bottom wall of the square groove 6 and the lowermost screen 2. Further, as... Figure 1 and Figure 3As shown, the filter assembly comprises a filter chamber 14, a third filter screen 15 arranged in the filter chamber 14, and a second supporting leg (prior art, not shown in the figure) arranged at the bottom end of the filter chamber 14. Further, the bottom wall of the screening chamber 1 is provided with a first supporting leg (prior art, not shown in the figure) at each corner thereof, and the bottom wall of the screening chamber 1 is provided with a second discharge port 18, in which a piston is arranged; and the top end of the screening chamber 1 is provided with a feeding port.
[0022] Working principle: the granular modified plastic masterbatch to be screened is added into the screening chamber 1 through the second discharge port 18, then the motor 10 is turned on, and the rotating shaft 8 and the eccentric wheel 9 are driven to rotate, so that the lowermost screen 2 and the other screen 2 connected with the lowermost screen 2 are synchronously vertically vibrated, and the screen 2 slides up and down outside the slide pole 7 during the vibration process, so as to achieve the purpose of vibrating and screening the masterbatch on the screen 2. During the screening process, the powder impurities adhered to the surface of the masterbatch will be separated from the surface of the masterbatch and dispersed into the screening chamber 1 due to the continuous vibration of the masterbatch. Therefore, the fan needs to be turned on in advance before screening, and the powder impurities in the screening chamber 1 are sucked into the filter chamber 14 through the first suction pipe 4 under the action of the fan, and then blocked by the third filter screen 15 and collected in the screening chamber 1. During the entire suction process, the suction strength needs to be controlled to ensure that the granular masterbatch is almost not affected, and the dispersed powder impurities are sucked.
[0023] Through the synergistic effect of the above-mentioned devices, the powder impurities in the masterbatch can be removed during the multi-stage screening process, thereby improving the purity of the screened masterbatch.
[0024] Example 2
[0025] Based on example 1, as Figure 1As shown, the air inlet end of each first suction pipe 4 is provided with a first filter screen 12, the mesh size of the first filter screen 12 is smaller than that of the lowermost screen 2. By arranging the first filter screen 12, the granular masterbatch can be prevented from splashing into the first suction pipe 4 when vibrating. Further, the sidewall of the screening chamber 1 and above each screen 2 is provided with an air inlet, and each air inlet is provided with a second filter screen 13, the mesh size of the second filter screen 13 is smaller than that of the lowermost screen 2. By arranging the air inlet, it is ensured that air enters the screening chamber 1, and the suction operation can be smoothly carried out. The arrangement of the second filter screen 13 can prevent dust in the air from entering the screening chamber 1, and also prevent the granular masterbatch from splashing out of the air inlet when vibrating. Further, the third filter screen 15 is vertically arranged in the filter chamber 14, and the first suction pipe 4 and the second suction pipe 5 are arranged on the two sides of the third filter screen 15. The bottom wall of the filter chamber 14 and between the third filter screen 15 and the first suction pipe 4 is provided with a first discharge port 20, and the lower side of the first discharge port 20 is provided with a discharge box 16. Due to the gravity of the powder on the third filter screen 15, part of the powder will fall off. By arranging the discharge box 16, the powder falling off from the third filter screen 15 can be collected. Further, as shown, Figure 3 The discharge box 16 and the filter chamber 14 are connected through a bolt 17, so as to facilitate the disassembly and installation of the discharge box 16.
Claims
1. A screening device for modifying plastic masterbatch, comprising a screening chamber (1), a plurality of screens (2) arranged in the screening chamber (1) from top to bottom, a connecting rod (3) for fixedly connecting the plurality of screens (2), a vibrating assembly for driving the screens (2) to vibrate, and a suction assembly connected to the screening chamber (1); characterized in that, The suction assembly comprises a first suction pipe (4) communicated with the side wall of the screening chamber (1), a filter assembly connected with the air outlet end of the first suction pipe (4), a second suction pipe (5) connected with the air outlet end of the filter assembly, and a fan connected with the air outlet end of the second suction pipe (5); the number of the first suction pipes (4) is the same as that of the screens (2), and one first suction pipe (4) is arranged above each screen (2); the mesh hole diameters of the screens (2) gradually decrease from top to bottom.
2. A screening device for modifying plastic masterbatch as claimed in claim 1 wherein, The vibration assembly comprises a square groove (6) arranged on the side wall of the screening chamber (1), a plurality of slide rods (7) arranged in the square groove (6), a rotating shaft (8) horizontally arranged below the lowermost screen (2), a motor (10) arranged on the side wall of the screening chamber (1) and connected with the rotating shaft (8), and an eccentric wheel (9) sleeved on the rotating shaft (8); the screens (2) are slidably sleeved on the slide rods (7); two springs (11) are arranged on each slide rod (7), and the two springs (11) are arranged between the top wall of the square groove (6) and the uppermost screen (2) and between the bottom wall of the square groove (6) and the lowermost screen (2) respectively.
3. A screening device for modifying plastic masterbatch as claimed in claim 1 wherein, The air inlet end of each first suction pipe (4) is provided with a first filter screen (12), and the mesh hole diameter of the first filter screen (12) is smaller than that of the lowermost screen (2).
4. A screening device for modifying plastic masterbatch as claimed in claim 3 wherein, The side wall of the screening chamber (1) and above each screen (2) is provided with an air inlet, and each air inlet is provided with a second filter screen (13), and the mesh hole diameter of the second filter screen (13) is smaller than that of the lowermost screen (2).
5. A screening device for modifying plastic masterbatch as claimed in claim 1 wherein, The filter assembly comprises a filter chamber (14), a third filter screen (15) arranged in the filter chamber (14), and a second supporting leg arranged at the bottom end of the filter chamber (14).
6. A screening device for modifying plastic masterbatch as claimed in claim 5 wherein, The third filter screen (15) is vertically arranged in the filter chamber (14), the first suction pipe (4) and the second suction pipe (5) are arranged on the two sides of the third filter screen (15) respectively, the bottom wall of the filter chamber (14) and between the third filter screen (15) and the first suction pipe (4) is provided with a first discharge port (20), and the lower portion of the first discharge port (20) is provided with a discharge box (16).
7. A screening device for modifying plastic masterbatch as claimed in claim 6 wherein, The discharge box (16) and the filter chamber (14) are connected through a bolt (17).
8. A screening device for modifying plastic masterbatch as claimed in claim 1 wherein, The bottom wall of the screening chamber (1) is provided with a first supporting leg, and the bottom wall of the screening chamber (1) is provided with a second discharge port (18).