Impurity removal device for modified plastics

Abstract

The utility model relates to the technical field of modified plastic processing, in particular to an impurity removal device for modified plastics, which can improve the effects of removing impurities and scrap iron on modified plastic particles by arranging the impurity removal device, so that the purity of the modified plastic particles is improved. Comprising a box body, a feeding hopper, a first electromagnetic plate, a first filter screen, a screening square frame, a second filter screen, two sets of second electromagnetic plates, a discharging groove plate, a vibration device, a mounting device, a clamping device, a buffering device, a lifting device and a collecting device, an observation window is arranged on the upper portion of the front end of the box body, the feeding hopper communicates with the right side of the top end of the box body, and the lifting device is connected with the inner bottom end of the box body; the collecting devices are installed on the left side and the right side of the bottom end in the box body and located below the first filter screen and the second filter screen.

Description

Technical Field

[0001] The utility model relates to the technical field of modified plastic processing, in particular to an impurity removing device for modified plastics. Background Technique

[0002] Modified plastics are plastic materials that, based on general-purpose plastics and engineering plastics, improve or enhance the original plastic properties through a series of processing methods such as filling, blending, and reinforcement. These modifications aim to expand the application scope of plastics and make them better meet specific usage conditions and environmental requirements.

[0003] During the production process of modified plastics, it is necessary to remove impurities and iron filings from their particles. However, the existing impurity removing devices have poor effects on removing impurities and iron filings from modified plastic particles. Content of the Utility Model

[0004] To solve the above technical problems, the utility model provides an impurity removing device for modified plastics, which can improve the impurity removing and iron filing removing effects on modified plastic particles by setting this device, thereby improving the purity of modified plastic particles.

[0005] An impurity removing device for modified plastics of the utility model includes a box body, a feed hopper, a first electromagnetic plate, a first filter screen, a screening square frame, a second filter screen, two groups of second electromagnetic plates, a discharge chute plate, a vibration device, a mounting device, a clamping device, a buffer device, a lifting device, and a collection device. An observation window is arranged at the upper part of the front end of the box body. The feed hopper is communicated with the upper right side of the top of the box body. The first electromagnetic plate is obliquely installed on the upper right side inside the box body. The first filter screen is obliquely installed on the upper left side inside the box body through the mounting device. The screening square frame is installed at the lower right side of the bottom inside the box body through the buffer device. The second filter screen is installed at the bottom end inside the screening square frame through the clamping device. Two groups of second electromagnetic plates are staggered and installed on the upper left side and the upper right side inside the screening square frame. The lower right end of the screening square frame and the lower right end of the box body are both communicated with a discharge port. The discharge chute plate is installed at the discharge port of the screening square frame. The discharge chute plate is movable inside the discharge port of the box body. The vibration device is installed at the rear end of the box body. The vibration device is cooperatively connected with the rear end of the screening square frame. The lifting device is installed at the left side of the bottom end of the screening square frame. The lifting device is connected with the bottom end inside the box body. The collection device is installed at the left side and the right side of the bottom end inside the box body. The collection device is located below the first filter screen and the second filter screen.

[0006] Preferably, the vibration device includes a motor, a cam, a fixed rod, and a runner. The motor is installed at the rear end of the box body. The cam is installed at the output end of the motor. The front end of the fixed rod passes through the rear end of the box body and is connected with the rear end of the screening square frame. A long hole is communicated with the rear end of the box body. The fixed rod is movable inside the long hole of the box body. The runner is rotatably installed at the rear end of the fixed rod. The runner corresponds to the position of the cam.

[0007] Preferably, the buffer device includes four sets of telescopic tubes, four sets of telescopic rods, four sets of first springs, and four sets of first fixing seats. The four sets of telescopic rods are respectively installed on the left front side, left rear side, right front side, and right rear side of the bottom end of the screening square frame. The four sets of telescopic rods are slidably connected to the four sets of telescopic tubes. The four sets of telescopic tubes are rotatably installed on the bottom end inside the box body through the four sets of first fixing seats. The four sets of first springs are respectively sleeved on the four sets of telescopic rods. One end of each of the four sets of first springs is connected to one of the four sets of telescopic rods, and one end of each of the four sets of first springs contacts the top ends of the four sets of telescopic tubes.

[0008] Preferably, the clamping device includes four sets of L-shaped frames, four sets of electric push rods, and four sets of stoppers. The four sets of L-shaped frames are respectively installed on the front lower side and rear lower side of the left end and right end of the screening square frame. The four sets of electric push rods are respectively installed inside the four sets of L-shaped frames. The four sets of stoppers are respectively installed at the output ends of the four sets of electric push rods. The four sets of stoppers support the second filter screen.

[0009] Preferably, the lifting device includes a second fixing seat, a hydraulic cylinder, and a third fixing seat. The second fixing seat is installed in the middle of the bottom end inside the box body. The hydraulic cylinder is rotatably installed on the second fixing seat. The third fixing seat is installed in the middle of the left side of the bottom end of the screening square frame. The output end of the hydraulic cylinder is rotatably connected to the third fixing seat.

[0010] Preferably, the installation device includes two sets of installation rods, two sets of clamping blocks, an installation plate, a first handle, and a fixing device. The two sets of installation rods are respectively installed on the front side and rear side of the middle of the right end inside the box body. The two sets of clamping blocks are respectively installed obliquely at the left ends of the two sets of installation rods. The two sets of clamping blocks are cooperatively clamped with the first filter screen. An installation opening is communicatively provided at the upper side of the left end of the box body. The installation plate is installed at the installation opening of the box body through the fixing device. The first handle is installed at the left end of the installation plate.

[0011] Preferably, the fixing device includes four sets of fourth fixing seats, two sets of handles, two sets of bolts, two sets of second springs, and two sets of top blocks. The four sets of fourth fixing seats are respectively installed alternately at the front upper side and rear lower side of the installation opening of the box body. Slide holes are communicatively provided on all the four sets of fourth fixing seats. The two sets of bolts are respectively slidably connected to the four sets of fourth fixing seats. The two sets of handles are respectively installed on the left sides of the outer ends of the two sets of bolts. The two sets of second springs are respectively sleeved on the middle parts of the two sets of bolts. One end of each of the two sets of second springs is connected to one of the two sets of bolts, and the other end of each of the two sets of second springs is connected to the inner ends of the two sets of fourth fixing seats on the inner side. The two sets of top blocks are respectively installed at the inner ends of the two sets of bolts. The two sets of top blocks clamp the installation plate.

[0012] Preferably, the collecting device includes four groups of T-shaped sliding rails, two groups of collecting boxes, a cleaning plate, a second handle, two groups of pin seats and a pin rod. The four groups of T-shaped sliding rails are installed at the bottom end inside the box body. T-shaped groove plates are provided on the left and right sides of the bottom ends of the two groups of collecting boxes. The four groups of T-shaped groove plates are respectively slidably connected to the four groups of T-shaped sliding rails. Handle grooves are provided at the front ends of the two groups of collecting boxes. The left collecting box is located below the first filter screen, and the right collecting box is located below the second filter screen. The right collecting box is lower in height than the left collecting box. A cleaning port is communicated and provided at the lower side of the front end of the box body. The cleaning plate is rotatably installed at the cleaning port of the box body. The second handle is installed on the right side of the front end of the cleaning plate. The two groups of pin seats are respectively installed at the lower right side of the front end of the box body and the upper right side of the front end of the cleaning plate. The positions of the two groups of pin seats correspond to each other, and the pin rod is cooperatively clamped with the two groups of pin seats.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: The modified plastic particles are introduced onto the first electromagnetic plate inside the box body through the feed hopper. The first electromagnetic plate is electrified, and the first electromagnetic plate adsorbs the iron filings in the modified plastic particles. Then, they slide onto the first filter screen. The first filter screen filters the impurities in the modified plastic, and the filtered impurities fall into the collecting device. Then, the modified plastic particles are introduced into the screening square frame. The two groups of second electromagnetic plates are electrified, and at the same time, the vibration device is turned on. The vibration device drives the overall vibration of the screening square frame. The modified plastic particles move downward along the two groups of second electromagnetic plates. The two groups of second electromagnetic plates perform secondary adsorption of iron filings on the modified plastic particles. Then, the modified plastic particles fall onto the second filter screen. The second filter screen screens the impurities in the modified plastic particles, and the impurities fall into the collecting device. After the impurities on the second filter screen in the modified plastic particles are removed, the lifting device is turned on. The lifting device drives the overall rightward tilt of the screening square frame, so that the modified plastic particles on the second filter screen vibrate and quickly discharge through the discharge chute plate. By setting this device, the effect of removing impurities and iron filings from the modified plastic particles can be improved, thereby improving the purity of the modified plastic particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is Figure 1 the sectional structural diagram of;

[0016] Figure 3 is Figure 2 the enlarged sectional structural diagram of the screening square frame in;

[0017] Figure 4 is Figure 1 the top view structural diagram of;

[0018] Figure 5 is Figure 1 the enlarged structural diagram of A in;

[0019] Figure 6 Yes Figure 3 Schematic diagram of the enlarged structure of B;

[0020] Markings in the attached figure: 1, box; 2, observation window; 3, feed hopper; 4, first electromagnetic plate; 5, first filter; 6, screening frame; 7, second filter; 8, second electromagnetic plate; 9, discharge trough plate; 10, motor; 11, cam; 12, fixed rod; 13, rotating wheel; 14, telescopic tube; 15, telescopic rod; 16, first spring; 17, first fixed seat; 18, L-shaped frame; 19, electric push rod ; 20, stopper; 21, second fixed seat; 22, hydraulic cylinder; 23, third fixed seat; 24, mounting rod; 25, clamping block; 26, mounting plate; 27, first handle; 28, fourth fixed seat; 29, handle; 30, latch; 31, second spring; 32, top block; 33, T-type slide rail; 34, T-type slot plate; 35, collection box; 36, cleaning plate; 37, second handle; 38, pin seat; 39, pin rod. Specific implementation method

[0021] The following is a further detailed description of the specific implementation of the utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the utility model, but are not intended to limit the scope of the utility model.

[0022] If Figures 1 to 6 As shown, the utility model is a modified plastic impurity removal device, comprising a box 1, a feed hopper 3, a first electromagnetic plate 4, a first filter 5, a screening frame 6, a second filter 7, two sets of second electromagnetic plates 8, a discharge trough plate 9, a vibrating device, a mounting device, a clamping device, a buffer device, a lifting device and a collecting device. An observation window 2 is provided at the upper front end of the box 1, the feed hopper 3 is connected to the right side of the top of the box 1, the first electromagnetic plate 4 is obliquely installed on the upper right side of the box 1, the first filter 5 is obliquely installed on the upper left side of the box 1 through the mounting device, the screening frame 6 is installed on the right side of the bottom of the box 1 through the buffer device, and the second filter 7 is installed on the lower right side of the box 1. It is installed at the bottom of the screening frame 6 through a clamping device, and two sets of second electromagnetic plates 8 are staggeredly installed on the upper left and upper right sides of the screening frame 6. The lower right end of the screening frame 6 and the lower right end of the box 1 are both connected to provide a discharge port, and a discharge slot plate 9 is installed at the discharge port of the screening frame 6. The discharge slot plate 9 moves in the discharge port of the box 1. The vibration device is installed at the rear end of the box 1, and the vibration device is connected to the rear end of the screening frame 6. The lifting device is installed on the left side of the bottom of the screening frame 6, and the lifting device is connected to the bottom of the box 1. The collecting device is installed on the left and right sides of the bottom of the box 1, and the collecting device is located below the first filter 5 and the second filter 7;

[0023] The modified plastic particles are introduced into the first electromagnetic plate 4 in the box body 1 through the feed hopper 3. The first electromagnetic plate 4 is energized, and the first electromagnetic plate 4 adsorbs the iron filings in the modified plastic particles. Then, they slide onto the first filter screen 5. The first filter screen 5 filters the impurities in the modified plastic. The filtered impurities fall into the collection device. Then, the modified plastic particles are introduced into the screening square frame 6. The two groups of second electromagnetic plates 8 are energized, and at the same time, the vibration device is turned on. The vibration device drives the overall vibration of the screening square frame 6. The modified plastic particles move downward along the two groups of second electromagnetic plates 8. The two groups of second electromagnetic plates 8 perform secondary adsorption of iron filings on the modified plastic particles. Then, the modified plastic particles fall onto the second filter screen 7. The second filter screen 7 screens the impurities in the modified plastic particles. The impurities fall into the collection device. After the impurities on the second filter screen 7 in the modified plastic particles are removed, the lifting device is turned on. The lifting device drives the screening square frame 6 to tilt to the right as a whole, so that the modified plastic particles on the second filter screen 7 vibrate and quickly discharge through the discharge chute plate 9. By setting this device, the effect of removing impurities and iron filings from the modified plastic particles can be improved, thereby improving the purity of the modified plastic particles.

[0024] As a preference of the above embodiment, the vibration device includes a motor 10, a cam 11, a fixed rod 12 and a runner 13. The motor 10 is installed at the rear end of the box body 1. The cam 11 is installed at the output end of the motor 10. The front end of the fixed rod 12 passes through the rear end of the box body 1 and is connected to the rear end of the screening square frame 6. A long hole is communicated and provided at the rear end of the box body 1. The fixed rod 12 moves in the long hole of the box body 1. The runner 13 is rotatably installed at the rear end of the fixed rod 12. The runner 13 corresponds to the position of the cam 11. By setting the motor 10, the cam 11, the fixed rod 12 and the runner 13, by turning on the motor 10, the motor 10 drives the cam 11 to rotate. The cam 11 drives the runner 13 to shake. The runner 13 drives the overall vibration of the screening square frame 6 through the fixed rod 12, playing a role in driving the vibration of the screening square frame 6, thereby improving the efficiency of removing impurities and iron filings from the modified plastic.

[0025] Preferably, as in the above embodiment, the buffer device includes four sets of telescopic tubes 14, four sets of telescopic rods 15, four sets of first springs 16 and four sets of first fixing seats 17. The four sets of telescopic rods 15 are respectively installed on the left front side, left rear side, right front side and right rear side of the bottom end of the screening square frame 6. The four sets of telescopic rods 15 are slidably connected to the four sets of telescopic tubes 14. The four sets of telescopic tubes 14 are rotatably installed on the inner bottom end of the box body 1 through the four sets of first fixing seats 17. The four sets of first springs 16 are respectively sleeved on the four sets of telescopic rods 15. One end of the four sets of first springs 16 is connected to the four sets of telescopic rods 15, and one end of the four sets of first springs 16 contacts the top ends of the four sets of telescopic tubes 14. By providing the telescopic tubes 14, telescopic rods 15, first springs 16 and first fixing seats 17, when the screening square frame 6 vibrates, the four sets of telescopic tubes 14, four sets of telescopic rods 15, four sets of first springs 16 and four sets of first fixing seats 17 function to support and stabilize the screening square frame 6, improving the stability of the screening square frame 6.

[0026] Preferably, as in the above embodiment, the clamping device includes four sets of L-shaped frames 18, four sets of electric push rods 19 and four sets of stoppers 20. The four sets of L-shaped frames 18 are respectively installed on the front lower side and rear lower side of the left end and right end of the screening square frame 6. The four sets of electric push rods 19 are respectively installed inside the four sets of L-shaped frames 18. The four sets of stoppers 20 are respectively installed at the output ends of the four sets of electric push rods 19. The four sets of stoppers 20 support the second filter screen 7. By providing the L-shaped frames 18, electric push rods 19 and stoppers 20, by turning on the four sets of electric push rods 19, the four sets of electric push rods 19 drive the four sets of stoppers 20 to extend, and the four sets of stoppers 20 clamp the second filter screen 7. When the second filter screen 7 needs to be cleaned, the four sets of electric push rods 19 are turned on in the reverse direction, and the four sets of electric push rods 19 retract the four sets of stoppers 20, so as to remove the second filter screen 7, facilitating the cleaning of the second filter screen 7.

[0027] Preferably, as in the above embodiment, the lifting device includes a second fixing seat 21, a hydraulic cylinder 22 and a third fixing seat 23. The second fixing seat 21 is installed in the middle of the inner bottom end of the box body 1. The hydraulic cylinder 22 is rotatably installed on the second fixing seat 21. The third fixing seat 23 is installed in the middle of the left side of the bottom end of the screening square frame 6. The output end of the hydraulic cylinder 22 is rotatably connected to the third fixing seat 23. By providing the second fixing seat 21, hydraulic cylinder 22 and third fixing seat 23, by turning on the hydraulic cylinder 22, the hydraulic cylinder 22 drives the left side of the screening square frame 6 to lift upward, and the right side of the screening square frame 6 tilts downward. The modified plastic particles on the second filter screen 7 are discharged through the discharge chute plate 9 under vibration, facilitating the discharge of the modified plastic particles on the second filter screen 7.

[0028] Preferably, as in the above embodiment, the installation device includes two sets of installation rods 24, two sets of clamping blocks 25, an installation plate 26, a first handle 27, and a fixing device. The two sets of installation rods 24 are respectively installed on the front side and the rear side of the middle part of the right end inside the box body 1. The two sets of clamping blocks 25 are respectively installed obliquely at the left ends of the two sets of installation rods 24. The two sets of clamping blocks 25 are cooperatively clamped with the first filter screen 5. An installation opening is communicated and arranged on the upper side of the left end of the box body 1. The installation plate 26 is installed at the installation opening of the box body 1 through the fixing device. The first handle 27 is installed at the left end of the installation plate 26. By providing the installation rods 24, the clamping blocks 25, the installation plate 26, the first handle 27, and the fixing device, when it is necessary to clean the first filter screen 5, the limit of the fixing device on the installation plate 26 is released, and then the installation plate 26 is removed through the first handle 27. The first filter screen 5 then follows the installation plate 26 and is taken out of the box body 1 to the outside, so as to clean the first filter screen 5, which is convenient for cleaning the first filter screen 5.

[0029] Preferably, as in the above embodiment, the fixing device includes four sets of fourth fixing seats 28, two sets of handles 29, two sets of bolts 30, two sets of second springs 31, and two sets of top blocks 32. The four sets of fourth fixing seats 28 are respectively installed staggeredly on the upper front side and the lower rear side of the installation opening of the box body 1. Slide holes are communicated and arranged on the four sets of fourth fixing seats 28. The two sets of bolts 30 are respectively slidably connected with the four sets of fourth fixing seats 28. The two sets of handles 29 are respectively installed on the left sides of the outer ends of the two sets of bolts 30. The two sets of second springs 31 are respectively sleeved on the middle parts of the two sets of bolts 30. One ends of the two sets of second springs 31 are connected with the two sets of bolts 30, and the other ends of the two sets of second springs 31 are connected with the inner ends of the two sets of fourth fixing seats 28 on the inner side. The two sets of top blocks 32 are respectively installed at the inner ends of the two sets of bolts 30. The two sets of top blocks 32 are clamped on the installation plate 26. By providing the fourth fixing seats 28, the handles 29, the bolts 30, the second springs 31, and the top blocks 32, when it is necessary to clean the first filter screen 5, the two sets of bolts 30 are pulled to slide outwards through the two sets of handles 29. The two sets of bolts 30 drive the two sets of top blocks 32 to slide outwards, and the two sets of second springs 31 are in a compressed state. When the two sets of top blocks 32 are separated from the installation plate 26, the first filter screen 5 on the installation plate 26 is taken out of the box body 1 through the first handle 27, which plays a role in fixing the installation plate 26.

[0030] Preferably, as in the above embodiments, the collecting device includes four sets of T-shaped slide rails 33, two sets of collecting boxes 35, a cleaning plate 36, a second handle 37, two sets of pin seats 38 and a pin rod 39. The four sets of T-shaped slide rails 33 are installed at the inner bottom end of the box body 1. T-shaped groove plates 34 are provided on the left and right sides of the bottom ends of the two sets of collecting boxes 35. The four sets of T-shaped groove plates 34 are respectively slidably connected to the four sets of T-shaped slide rails 33. Handle grooves are provided at the front ends of the two sets of collecting boxes 35. The left collecting box 35 is located below the first filter screen 5, and the right collecting box 35 is located below the second filter screen 7. The right collecting box 35 is lower in height than the left collecting box 35. A cleaning port is communicated and provided at the lower side of the front end of the box body 1. The cleaning plate 36 is rotatably installed at the cleaning port of the box body 1. The second handle 37 is installed on the right side of the front end of the cleaning plate 36. The two sets of pin seats 38 are respectively installed at the lower right side of the front end of the box body 1 and the upper right side of the front end of the cleaning plate 36. The positions of the two sets of pin seats 38 correspond to each other. The pin rod 39 is cooperatively clamped with the two sets of pin seats 38. By providing the T-shaped slide rails 33, T-shaped groove plates 34, collecting boxes 35, cleaning plate 36, second handle 37, pin seats 38 and pin rod 39, the impurities filtered by the first filter screen 5 and the second filter screen 7 are introduced into the two sets of collecting boxes 35 for collection. When the first filter screen 5 and the second filter screen 7 are both removed, the power supply to the first electromagnetic plate 4 and the two sets of second electromagnetic plates 8 is turned off, and the iron filings on the first electromagnetic plate 4 and the two sets of second electromagnetic plates 8 slide into the two sets of collecting boxes 35 for collection. When it is necessary to clean the two sets of collecting boxes 35, the pin rod 39 is pulled out, the cleaning plate 36 is opened through the second handle 37, and then the two sets of collecting boxes 35 are slid out on the four sets of T-shaped slide rails 33 through the handle grooves of the two sets of collecting boxes 35, so as to clean the impurities and iron filings in the two sets of collecting boxes 35, facilitating the collection and cleaning of the impurities and iron filings.

[0031] An impurity removing device for modified plastics of the present utility model, when working, first imports the modified plastic particles into the first electromagnetic plate 4 in the box body 1 through the feed hopper 3, energizes the first electromagnetic plate 4, and the first electromagnetic plate 4 adsorbs the iron filings in the modified plastic particles, and then slides down onto the first filter screen 5. The first filter screen 5 filters the impurities in the modified plastics, and the filtered impurities fall into the left collecting box 35. Then the modified plastic particles are imported into the screening square box 6, energize the two groups of second electromagnetic plates 8, and at the same time turn on the motor 10. The motor 10 drives the cam 11 to rotate, the cam 11 drives the runner 13 to shake, and the runner 13 drives the whole screening square box 6 to vibrate through the fixed rod 12. The modified plastic particles move downward along the two groups of second electromagnetic plates 8, and the two groups of second electromagnetic plates 8 perform secondary adsorption of iron filings on the modified plastic particles. Then the modified plastic particles fall onto the second filter screen 7. The second filter screen 7 screens the impurities in the modified plastic particles, and the impurities fall into the right collecting box 35. After the impurity removal of the modified plastic particles on the second filter screen 7 is completed, turn on the hydraulic cylinder 22. The hydraulic cylinder 22 drives the left side of the screening square box 6 to lift upward, and the right side of the screening square box 6 tilts downward. The modified plastic particles on the second filter screen 7 are discharged through the discharge chute plate 9 under vibration. When it is necessary to clean the second filter screen 7, reverse and turn on the four groups of electric push rods 19. The four groups of electric push rods 19 retract the four groups of stoppers 20, so as to remove the second filter screen 7. When it is necessary to clean the first filter screen 5, release the limit of the fixing device on the mounting plate 26, and then take down the mounting plate 26 through the first handle 27. The first filter screen 5 follows the mounting plate 26 and is taken out to the outside of the box body 1, so as to clean the first filter screen 5. After both the first filter screen 5 and the second filter screen 7 are removed, turn off the power supply to the first electromagnetic plate 4 and the two groups of second electromagnetic plates 8. The iron filings on the first electromagnetic plate 4 and the two groups of second electromagnetic plates 8 slide into the two collecting boxes 35 for collection. When it is necessary to clean the two collecting boxes 35, pull out the pin rod 39, open the cleaning plate 36 through the second handle 37, and then slide the two collecting boxes 35 out on the four groups of T-shaped slide rails 33 through the handle grooves of the two collecting boxes 35, so as to clean the impurities and iron filings in the two collecting boxes 35.

[0032] The installation method, connection method or setting method of an impurity removing device for modified plastics of the present utility model are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented; the first electromagnetic plate 4, the second electromagnetic plate 8, the motor 10, the electric push rod 19 and the hydraulic cylinder 22 of an impurity removing device for modified plastics of the present utility model are purchased on the market, and technicians in this industry only need to install and operate according to the attached operation manuals.

[0033] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. An impurity removal device for modified plastics, characterized in that: The invention comprises a box (1), a feed hopper (3), a first electromagnetic plate (4), a first filter (5), a screening frame (6), a second filter (7), two sets of second electromagnetic plates (8), a discharge trough plate (9), a vibrating device, a mounting device, a clamping device, a buffer device, a lifting device and a collecting device. The front upper part of the box (1) is provided with an observation window (2). The feed hopper (3) is connected to the right side of the top of the box (1). The first electromagnetic plate (4) is obliquely mounted on the upper right side of the box (1). The first filter (5) is obliquely mounted on the upper left side of the box (1) through the mounting device. The screening frame (6) is mounted on the right side of the bottom of the box (1) through the buffer device. The second filter (7) is mounted through the clamping device. At the bottom of the screening frame (6), two groups of second electromagnetic plates (8) are staggeredly installed on the upper left and upper right sides of the screening frame (6); the lower right end of the screening frame (6) and the lower right end of the box (1) are both connected to form a discharge port; a discharge trough plate (9) is installed at the discharge port of the screening frame (6); the discharge trough plate (9) moves in the discharge port of the box (1); a vibration device is installed at the rear end of the box (1); the vibration device is connected to the rear end of the screening frame (6); a lifting device is installed on the left side of the bottom of the screening frame (6); the lifting device is connected to the bottom of the box (1); a collecting device is installed on the left and right sides of the bottom of the box (1); the collecting device is located below the first filter screen (5) and the second filter screen (7).

2. The impurity removal device for modified plastics according to claim 1, characterized in that: The vibration device comprises a motor (10), a cam (11), a fixing rod (12) and a rotating wheel (13). The motor (10) is mounted at the rear end of a box body (1), the cam (11) is mounted at the output end of the motor (10), the front end of the fixing rod (12) passes through the rear end of the box body (1) and is connected to the rear end of a screening frame (6), the rear end of the box body (1) is connected to a long hole, the fixing rod (12) moves in the long hole of the box body (1), and the rotating wheel (13) is rotatably mounted at the rear end of the fixing rod (12), and the position of the rotating wheel (13) corresponds to that of the cam (11).

3. The impurity removal device for modified plastics according to claim 2, characterized in that: The buffer device comprises four groups of telescopic tubes (14), four groups of telescopic rods (15), four groups of first springs (16) and four groups of first fixing seats (17). The four groups of telescopic rods (15) are respectively mounted on the left front side, the left rear side, the right front side and the right rear side of the bottom end of the screening frame (6). The four groups of telescopic rods (15) are slidably connected with the four groups of telescopic tubes (14). The four groups of telescopic tubes (14) are rotatably mounted on the bottom end of the box body (1) through the four groups of first fixing seats (17). The four groups of first springs (16) are respectively sleeved on the four groups of telescopic rods (15). One end of the four groups of first springs (16) is connected to the four groups of telescopic rods (15), and one end of the four groups of first springs (16) is in contact with the top end of the four groups of telescopic tubes (14).

4. The impurity removal device for modified plastics according to claim 3, characterized in that: The clamping device comprises four groups of L-shaped frames (18), four groups of electric push rods (19) and four groups of blocks (20). The four groups of L-shaped frames (18) are respectively mounted on the front lower side and the rear lower side of the left end and the right end of the screening frame (6). The four groups of electric push rods (19) are respectively mounted on the inner sides of the four groups of L-shaped frames (18). The four groups of blocks (20) are respectively mounted on the output ends of the four groups of electric push rods (19). The four groups of blocks (20) support the second filter screen (7).

5. The impurity removal device for modified plastics according to claim 4, characterized in that: The lifting device comprises a second fixed seat (21), a hydraulic cylinder (22) and a third fixed seat (23); the second fixed seat (21) is mounted at the middle of the bottom end of the box body (1); the hydraulic cylinder (22) is rotatably mounted on the second fixed seat (21); the third fixed seat (23) is mounted at the middle of the left side of the bottom end of the screening frame (6); and the output end of the hydraulic cylinder (22) is rotatably connected to the third fixed seat (23).

6. The impurity removal device for modified plastics according to claim 5, characterized in that: The mounting device comprises two groups of mounting rods (24), two groups of clamping blocks (25), a mounting plate (26), a first handle (27) and a fixing device. The two groups of mounting rods (24) are respectively mounted on the front side and the rear side of the middle part of the right end of the box body (1). The two groups of clamping blocks (25) are respectively mounted obliquely on the left ends of the two groups of mounting rods (24). The two groups of clamping blocks (25) are clamped together with the first filter screen (5). The upper side of the left end of the box body (1) is connected to a mounting opening. The mounting plate (26) is mounted at the mounting opening of the box body (1) through the fixing device. The first handle (27) is mounted on the left end of the mounting plate (26).

7. The impurity removal device for modified plastics according to claim 6, characterized in that: The fixing device comprises four groups of fourth fixing seats (28), two groups of handles (29), two groups of latches (30), two groups of second springs (31) and two groups of top blocks (32). The four groups of fourth fixing seats (28) are respectively and alternately installed on the front upper side and the rear lower side of the installation opening of the box body (1). The four groups of fourth fixing seats (28) are all connected with sliding holes. The two groups of latches (30) are respectively slidably connected with the four groups of fourth fixing seats (28). The two groups of handles (29) are respectively installed on the left side of the outer ends of the two groups of latches (30). The two groups of second springs (31) are respectively sleeved on the middle parts of the two groups of latches (30). One end of the two groups of second springs (31) is connected with the two groups of latches (30), and the other end of the two groups of second springs (31) is connected with the inner ends of the two groups of fourth fixing seats (28) on the inner side. The two groups of top blocks (32) are respectively installed on the inner ends of the two groups of latches (30). The two groups of top blocks (32) are clamped on the installation plate (26).

8. The impurity removal device for modified plastics according to claim 7, characterized in that: The collecting device comprises four groups of T-shaped slide rails (33), two groups of collecting boxes (35), a cleaning plate (36), a second handle (37), two groups of pin seats (38) and a pin rod (39). The four groups of T-shaped slide rails (33) are installed at the bottom end of the box body (1). The left and right sides of the bottom ends of the two groups of collecting boxes (35) are provided with T-shaped slot plates (34). The four groups of T-shaped slot plates (34) are respectively slidably connected to the four groups of T-shaped slide rails (33). The front ends of the two groups of collecting boxes (35) are provided with handle slots. The left collection box (35) is located below the first filter screen (5). The right side collecting box (35) is located at the lower side of the second filter screen (7), the right side collecting box (35) is lower than the left side collecting box (35), the lower side of the front end of the box body (1) is connected to a cleaning port, the cleaning plate (36) is rotatably mounted at the cleaning port of the box body (1), the second handle (37) is mounted on the right side of the front end of the cleaning plate (36), the two groups of pin seats (38) are respectively mounted on the lower right side of the front end of the box body (1) and the upper right side of the front end of the cleaning plate (36), the two groups of pin seats (38) are located correspondingly, and the pin rod (39) is matched and clamped with the two groups of pin seats (38).

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