CN216068152U - Feed arrangement is used in rubber processing with scrap rubber processing mechanism - Google Patents

Abstract

The utility model discloses a feeding device provided with a waste rubber treatment mechanism and used for rubber processing, which comprises a box body, the left side of the top of the box body is provided with a feeding mechanism, the middle position of the top of the box body is fixedly connected with a protective cover, and the top of the inner cavity of the protective cover is fixedly connected with a driving motor, the liquid silicone rubber and other materials can be fully mixed through the mutual matching of the first rotating rod, the first stirring rod, the transmission gear, the driven gear, the second rotating rod, the second stirring rod, the clapboard, the inclined plate, the movable plate, the connecting rod, the first threaded rod, the first thread sleeve and the hand-operated wheel, so that the quality of the rubber is improved, can collect the processing, the simple operation to the scrap rubber through mutually supporting between metal filters, scraper blade, second thread bush, second threaded rod, servo motor, baffle, fixture block and the movable block.

Description

Feed arrangement is used in rubber processing with scrap rubber processing mechanism

Technical Field

The utility model relates to the technical field of rubber processing, in particular to a feeding device provided with a waste rubber processing mechanism and used for rubber processing.

Background

The silicone rubber is rubber with a main chain composed of silicon and oxygen atoms alternately, the silicon atoms are usually connected with two organic groups, and liquid silicone rubber needs to be transported during subsequent processing of the silicone rubber, so that a feeding device needs to be used.

Current feed arrangement for rubber processing when stirring liquid silicon rubber raw materials and other materials, stirs inefficiency, can not make liquid silicon rubber raw materials fully mix with other materials to influence the quality of rubber, and current feed arrangement lacks the cull processing mechanism, and the cull that produces at the stirring in-process mixes together with liquid silicon rubber easily, the separation of not being convenient for is handled.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a feeding device for rubber processing, which is provided with a waste rubber processing mechanism.

One of the purposes of the utility model is realized by adopting the following technical scheme:

a feeding device provided with a waste rubber treatment mechanism for rubber processing comprises a box body, wherein a feeding mechanism is arranged at the left side of the top of the box body, a protective cover is fixedly connected at the middle position of the top of the box body, a driving motor is fixedly connected at the top of an inner cavity of the protective cover, a worm is fixedly connected at the power output end of the driving motor, a first rotating rod is fixedly connected at the bottom end of the worm, a first bearing is fixedly connected at the middle position of the top of the box body, the bottom end of the first rotating rod penetrates through the first bearing and extends to the inner cavity of the box body, a plurality of first stirring rods are fixedly connected with the bottom end of the first rotating rod, a discharging mechanism is arranged in the inner cavity of the box body, a waste rubber treatment mechanism is arranged at the position, close to the bottom, of the left side and the right side of the box body, two supporting legs are arranged in the front and back directions, and a discharging pipe is inserted into the bottom of the box body, and the discharge pipe is provided with valves matched with the discharge pipe.

Furthermore, the feeding mechanism comprises a barrel body, the barrel body is fixedly connected to the left side of the top of the box body, a supporting rod is fixedly connected to the bottom of the barrel body, one side of the supporting rod, which is far away from the barrel body, is fixedly connected with the left side of the box body, a feeding funnel is inserted into the position, which is close to the left side, of the top of the barrel body, a feeding pipe is inserted into the position, which is right side of the bottom of the barrel body, the bottom end of the feeding pipe penetrates through the top of the box body and extends to the inner cavity of the box body, first seal bearings are fixedly connected to the left and right sides of the barrel body, a transmission shaft is inserted into the inner cavity of the first seal bearing positioned on the left side, a helical blade is fixedly connected to the outer side of the transmission shaft, the right end of the transmission shaft penetrates through the inner cavity of the adjacent first seal bearing and is fixedly connected with a rotating rod, a worm wheel is meshed with the rear side of the worm, and a second bearing is fixedly connected to the left side of the protective cover, the right end of dwang runs through the second bearing inner chamber to with worm wheel fixed connection.

Furthermore, the outside of first bull stick is close to top department cover and is equipped with drive gear, just drive gear is located the inner chamber of box, drive gear's the left and right sides all meshes driven gear, just driven gear's inner chamber runs through and is equipped with the second bull stick, the equal fixedly connected with third bearing of left and right sides department is close to box inner chamber top, two peg graft respectively at adjacent third bearing inner chamber, and two the equal fixedly connected with a plurality of second puddler of the left and right sides of second bull stick.

Further, the discharging mechanism comprises a partition board, the partition board is fixedly connected to a position, close to the middle position, of an inner cavity of the box body, inclined boards are fixedly connected to positions, close to the left side and the right side, of the top of the partition board, the side, far away from the partition board, of each inclined board is fixedly connected with the side wall of the inner cavity of the adjacent box body, a first opening is formed in the middle position of the partition board, two movable boards are arranged in the inner cavity of the first opening, the adjacent sides of the two movable boards are attached to each other, first shaft pins are arranged on the sides, far away from the partition board, of the two movable boards, the two movable boards are movably connected with the partition board through the adjacent first shaft pins respectively, two first thread sleeves are arranged at the bottom of the partition board, opposite internal threads are formed in the inner cavities of the two first thread sleeves, first thread rods are arranged in the inner cavities of the two first thread sleeves in a penetrating mode, and second sealing bearings are fixedly connected to positions, close to the bottom, of the left side and the right side of the box body, the left end of first threaded rod is pegged graft at adjacent second sealed bearing inner chamber, just the right-hand member of first threaded rod runs through adjacent second sealed bearing inner chamber to the hand round of fixedly connected with, two first thread bush top all articulates there is the connecting rod, just the one end that first thread bush was kept away from to the connecting rod is articulated bottom the adjacent fly leaf.

Further, scrap rubber processing mechanism includes metal filters, just metal filters fixed connection is close to bottom department at the inner chamber of box, metal filters's top is close to right side department and is equipped with the scraper blade, just fixedly connected with second thread bush on the scraper blade, second thread bush inner chamber runs through and is equipped with the second threaded rod, the left side of box is close to bottom department and has seted up the second opening, the left end of second threaded rod extends to second opening inner chamber, the right side of box is close to bottom fixedly connected with third seal bearing, the right side of box is close to bottom fixedly connected with backup pad, just backup pad top fixedly connected with servo motor, the right-hand member of second threaded rod runs through the third seal bearing inner chamber to with servo motor's power take off end fixed connection.

Further, the left side of the second opening is provided with a baffle, the left-view cross-sectional area of the baffle is larger than the left-view cross-sectional area of the second opening, the bottom of the baffle is provided with a second shaft pin, the baffle is movably connected with the box body through the second shaft pin, a clamping groove is formed in the top of the baffle, a clamping block is inserted into an inner cavity of the clamping groove, a movable block is fixedly connected to the top of the clamping block, a sliding block is fixedly connected to the right side of the movable block, a sliding groove matched with the sliding block is formed in the left side of the box body, and the sliding block is movably connected to the inner cavity of the sliding groove.

Furthermore, the bottom of the scraper blade is mutually attached to the top of the metal filter screen, and the length of the scraper blade is consistent with the width of the metal filter screen.

Compared with the prior art, the utility model has the beneficial effects that:

1. the liquid silicone rubber and other materials can be fully mixed through mutual matching of the first rotating rod, the first stirring rod, the transmission gear, the driven gear, the second rotating rod, the second stirring rod, the partition plate, the inclined plate, the movable plate, the connecting rod, the first threaded sleeve and the hand-operated wheel, so that the quality of the rubber is improved;

2. can collect the processing, the simple operation to the scrap rubber through mutually supporting between metal filters, scraper blade, second thread bush, second threaded rod, servo motor, baffle, fixture block and the movable block.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a perspective view of the present embodiment;

FIG. 2 is a schematic structural diagram of the present embodiment;

FIG. 3 is a top view of a component spacer;

fig. 4 is an enlarged view of a portion a in fig. 2.

In the figure: 1. a box body; 2. a barrel; 3. a feed hopper; 4. a drive shaft; 5. a helical blade; 6. rotating the rod; 7. a drive motor; 8. a worm gear; 9. a worm; 10. a first rotating lever; 11. a transmission gear; 12. a first stirring rod; 13. a driven gear; 14. a second rotating rod; 15. a second stirring rod; 16. a partition plate; 17. a movable plate; 18. a connecting rod; 19. a first threaded rod; 20. a hand-operated wheel; 21. a second threaded rod; 22. a squeegee; 23. a servo motor; 24. a metal filter screen; 25. a discharge pipe; 26. a baffle plate; 27. a movable block; 28. and (7) clamping blocks.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 4, a feeding device with a waste rubber processing mechanism for rubber processing comprises a box body 1, a feeding mechanism is arranged at the left side of the top of the box body 1, a protective cover is fixedly connected at the middle position of the top of the box body 1, a driving motor 7 is fixedly connected at the top of the inner cavity of the protective cover, a worm 9 is fixedly connected at the power output end of the driving motor 7, a first rotating rod 10 is fixedly connected at the bottom end of the worm 9, a first bearing is fixedly connected at the middle position of the top of the box body 1, the bottom end of the first rotating rod 10 penetrates through the first bearing and extends to the inner cavity of the box body 1, a plurality of first stirring rods 12 are fixedly connected, a discharging mechanism is arranged in the inner cavity of the box body 1, a waste rubber processing mechanism is arranged at the position, which is close to the bottom, two supporting legs are fixedly connected at the bottoms of the left side and the right side of the box body 1, and the two supporting legs are arranged in the front and back direction, a discharge pipe 25 is inserted at the bottom of the box body 1, and valves matched with the discharge pipe 25 are arranged on the discharge pipe 25;

the feeding mechanism comprises a barrel body 2, the barrel body 2 is fixedly connected to the left side of the top of a box body 1, a supporting rod is fixedly connected to the bottom of the barrel body 2, one side of the supporting rod, away from the barrel body 2, is fixedly connected with the left side of the box body 1, a feeding funnel 3 is inserted into the position, close to the left side, of the top of the barrel body 2, a feeding pipe is inserted into the right side of the bottom of the barrel body 2, the bottom end of the feeding pipe penetrates through the top of the box body 1 and extends to the inner cavity of the box body 1, first sealing bearings are fixedly connected to the left side and the right side of the barrel body 2, a transmission shaft 4 is inserted into the inner cavity of the first sealing bearing on the left side, a spiral blade 5 is fixedly connected to the outer side of the transmission shaft 4, the right end of the transmission shaft 4 penetrates through the inner cavity of the adjacent first sealing bearing and is fixedly connected with a rotating rod 6, a worm wheel 8 is meshed with the rear side of a worm 9, a second bearing is fixedly connected to the left side of a protective cover, and the right end of the rotating rod 6 penetrates through the inner cavity of the second bearing, and is fixedly connected with the worm wheel 8, so that the labor force of manual feeding is saved;

a transmission gear 11 is sleeved on the outer side of the first rotating rod 10 close to the top end, the transmission gear 11 is located in an inner cavity of the box body 1, driven gears 13 are meshed on the left side and the right side of the transmission gear 11, second rotating rods 14 penetrate through the inner cavity of the driven gears 13, third bearings are fixedly connected on the top of the inner cavity of the box body 1 close to the left side and the right side, the top ends of the two second rotating rods 14 are respectively inserted into the inner cavities of the adjacent third bearings, and a plurality of second stirring rods 15 are fixedly connected on the left side and the right side of the two second rotating rods 14, so that the stirring and mixing efficiency is improved;

the discharging mechanism comprises a partition plate 16, the partition plate 16 is fixedly connected to the position, close to the middle position, of the inner cavity of the box body 1, inclined plates are fixedly connected to the positions, close to the left side and the right side, of the top of the partition plate 16, inclined plates are fixedly connected to the positions, close to the middle position, of the inner cavity of the adjacent box body 1, one sides, far away from the partition plate 16, of the inclined plates are fixedly connected with the side walls of the inner cavities of the adjacent box bodies 1, a first opening is formed in the middle position of the partition plate 16, two movable plates 17 are arranged in the inner cavity of the first opening, the adjacent sides, far away from the partition plate 16, of the two movable plates 17 are mutually attached, first shaft pins are arranged on the sides, far away from the two movable plates 17, the two movable plates 17 are respectively and movably connected with the partition plate 16 through the adjacent first shaft pins, two first thread sleeves are arranged at the bottom of the partition plate 16, opposite internal threads are formed in the inner cavities of the two first thread sleeves, a first thread rod 19 penetrates through the two first thread sleeves together, and a second sealing bearing is fixedly connected to the positions, close to the bottom, of the left side and the right side of the box body 1, the left end of the first threaded rod 19 is inserted into the inner cavity of the adjacent second sealing bearing, the right end of the first threaded rod 19 penetrates through the inner cavity of the adjacent second sealing bearing and is fixedly connected with a hand-operated wheel 20, the tops of the two first threaded sleeves are hinged with connecting rods 18, and one end, far away from the first threaded sleeves, of each connecting rod 18 is hinged with the bottom of the adjacent movable plate 17, so that the liquid silicone rubber is fully mixed with other materials;

the waste rubber treatment mechanism comprises a metal filter screen 24, the metal filter screen 24 is fixedly connected to the position, close to the bottom, of the inner cavity of the box body 1, a scraper 22 is arranged at the position, close to the right side, of the top of the metal filter screen 24, the bottom of the scraper 22 is mutually attached to the top of the metal filter screen 24, the length of the scraper 22 is consistent with the width of the metal filter screen 24, the cleaning effect is better, a second threaded sleeve is fixedly connected onto the scraper 22, a second threaded rod 21 penetrates through the inner cavity of the second threaded sleeve, a second opening is formed in the position, close to the bottom, of the left side of the box body 1, the left end of the second threaded rod 21 extends to the inner cavity of the second opening, a third sealing bearing is fixedly connected to the position, close to the bottom, of the right side of the box body 1, a support plate is fixedly connected to the position, the top of the support plate is fixedly connected with a servo motor 23, and the right end of the second threaded rod 21 penetrates through the inner cavity of the third sealing bearing, and with servo motor 23's power take off end fixed connection, second open-ended left side is equipped with baffle 26, and the left side of baffle 26 is looked cross sectional area and is greater than second open-ended left side and looks cross sectional area, baffle 26's bottom is equipped with the second axle round pin, and baffle 26 passes through second axle round pin and box 1 swing joint, the draw-in groove has been seted up at baffle 26's top, and the draw-in groove inner chamber is pegged graft and is had fixture block 28, the top fixedly connected with movable block 27 of fixture block 28, the right side fixedly connected with slider of movable block 27, the spout that matches each other with the slider is seted up in box 1's left side, and slider swing joint is at the spout inner chamber, make things convenient for the staff to carry out the collecting vat to the waste rubber and handle.

The working principle is as follows: when the utility model is used, the external power supply starts the driving motor 7, the driving motor 7 works to drive the worm 9 to rotate, the worm 9 rotates to drive the worm wheel 8 to rotate, the worm wheel 8 rotates to drive the rotating rod 6 to rotate, the rotating rod 6 rotates to drive the transmission shaft 4 to rotate, the transmission shaft 4 rotates to drive the spiral blade 5 to rotate, liquid silicone rubber and other materials are injected into the inner cavity of the cylinder body 2 through the feeding funnel 3, the liquid silicone rubber and other materials are conveyed to the feeding pipe through the spiral blade 5, the liquid silicone rubber and other materials are injected into the inner cavity of the box body 1 through the feeding pipe, the worm 9 rotates and simultaneously drives the first rotating rod 10 to rotate, the first rotating rod 10 rotates to drive a plurality of first stirring rods 12 and the transmission gear 11 to simultaneously rotate, the transmission gear 11 rotates to drive two driven gears 13 to rotate, the two driven gears 13 rotate to respectively drive the adjacent second rotating rods 14 to rotate, two second rotating rods 14 rotate to drive a plurality of adjacent second stirring rods 15 to rotate, a plurality of first stirring rods 12 and second stirring rods 15 rotate simultaneously to stir and mix the liquid silicone rubber and other materials, after the materials are stirred and mixed uniformly, a hand wheel 20 is rotated to drive a first threaded rod 19 to rotate, the first threaded rod 19 rotates to drive two first threaded sleeves to move towards the direction away from each other, a movable plate 17 is pulled to deflect downwards through adjacent connecting rods 18, so that the liquid on the top of a partition plate 16 flows onto a metal filter screen 24, the liquid silicone rubber and waste rubber are separated through the metal filter screen 24, a valve is opened to collect the liquid silicone rubber through a discharge pipe 25, a servo motor 23 is started through an external power supply, the servo motor 23 works to drive a second threaded rod 21 to rotate, the second threaded rod 21 rotates to drive the second threaded sleeve to move leftwards, second thread bush moves left and drives scraper blade 22 and move left, and scraper blade 22 moves left with the accumulational solidification silicon rubber propelling movement in metal filters 24 top to second opening part, promotes movable block 27 and upwards moves for fixture block 28 breaks away from the draw-in groove inner chamber, and baffle 26 turns downwards, thereby opens the second opening, makes things convenient for the staff to collect the processing from the second opening part to the cull.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims (7)

1. The utility model provides a feed arrangement is used in rubber processing with scrap rubber processing mechanism, includes box (1), its characterized in that: the box comprises a box body (1), a feeding mechanism is arranged at the left side of the top of the box body (1), a protective cover is fixedly connected at the middle position of the top of the box body (1), a driving motor (7) is fixedly connected at the top of the inner cavity of the protective cover, a worm (9) is fixedly connected at the power output end of the driving motor (7), a first rotating rod (10) is fixedly connected at the bottom end of the worm (9), a first bearing is fixedly connected at the middle position of the top of the box body (1), the bottom end of the first rotating rod (10) penetrates through the first bearing and extends to the inner cavity of the box body (1), a plurality of first stirring rods (12) are fixedly connected, a discharging mechanism is arranged in the inner cavity of the box body (1), a waste glue processing mechanism is arranged at the position, which is close to the bottom, of the left side and the right side of the box body (1), two supporting legs are fixedly connected at the bottom positions of the left side and the right side of the box body (1), and the two supporting legs are arranged front and back, a discharge pipe (25) is inserted into the bottom of the box body (1), and valves matched with the discharge pipe (25) are arranged on the discharge pipe.

2. The feeding device for rubber processing provided with a scrap rubber processing mechanism according to claim 1, wherein: the feeding mechanism comprises a barrel body (2), the barrel body (2) is fixedly connected to the left side of the top of a box body (1), a supporting rod is fixedly connected to the bottom of the barrel body (2), one side, far away from the barrel body (2), of the supporting rod is fixedly connected with the left side of the box body (1), a feeding funnel (3) is inserted into the position, close to the left side, of the top of the barrel body (2), a feeding pipe is inserted into the position of the right side of the bottom of the barrel body (2), the bottom end of the feeding pipe penetrates through the top of the box body (1) and extends to the inner cavity of the box body (1), first sealing bearings are fixedly connected to the left and right sides of the barrel body (2), a transmission shaft (4) is inserted into the inner cavity of the first sealing bearing positioned on the left side, a spiral blade (5) is fixedly connected to the outer side of the transmission shaft (4), and the right end of the transmission shaft (4) penetrates through the inner cavity of the adjacent first sealing bearing, and fixedly connected with dwang (6), the rear side meshing of worm (9) has worm wheel (8), protection casing left side fixedly connected with second bearing, the right-hand member of dwang (6) runs through the second bearing inner chamber to with worm wheel (8) fixed connection.

3. The feeding device for rubber processing provided with a scrap rubber processing mechanism according to claim 1, wherein: the outside of first bull stick (10) is close to top department cover and is equipped with drive gear (11), just drive gear (11) are located the inner chamber of box (1), the left and right sides of drive gear (11) all meshes driven gear (13), just the inner chamber of driven gear (13) runs through and is equipped with second bull stick (14), box (1) inner chamber top is close to the equal fixedly connected with third bearing of left and right sides department, two the top of second bull stick (14) is pegged graft respectively at adjacent third bearing inner chamber, and two the equal fixedly connected with a plurality of second puddler (15) in both sides about second bull stick (14).

4. The feeding device for rubber processing provided with a scrap rubber processing mechanism according to claim 1, wherein: the discharging mechanism comprises a partition plate (16), the partition plate (16) is fixedly connected to a position, close to the middle position, of an inner cavity of the box body (1), inclined plates are fixedly connected to positions, close to the left side and the right side, of the top of the partition plate (16), one side, far away from the partition plate (16), of each inclined plate is fixedly connected with the side wall of the inner cavity of the adjacent box body (1), a first opening is formed in the middle position of the partition plate (16), two movable plates (17) are arranged in the inner cavity of the first opening, adjacent sides of the two movable plates (17) are mutually attached, first shaft pins are arranged on the sides, far away from the two movable plates (17), the two movable plates (17) are movably connected with the partition plate (16) through the adjacent first shaft pins respectively, two first thread sleeves are arranged at the bottom of the partition plate (16), and opposite internal threads are formed in the inner cavities of the two first thread sleeves, two first thread bush inner chamber runs through jointly and is equipped with first threaded rod (19), the box (1) left and right sides is close to the equal fixedly connected with second sealed bearing of bottom department, the left end of first threaded rod (19) is pegged graft at adjacent second sealed bearing inner chamber, just the right-hand member of first threaded rod (19) runs through adjacent second sealed bearing inner chamber to fixedly connected with hand wheel (20), two first thread bush top all articulates there is connecting rod (18), just the one end that first thread bush was kept away from in connecting rod (18) is articulated bottom adjacent fly leaf (17).

5. The feeding device for rubber processing provided with a scrap rubber processing mechanism according to claim 1, wherein: the waste rubber treatment mechanism comprises a metal filter screen (24), the metal filter screen (24) is fixedly connected to the inner cavity of the box body (1) and is close to the bottom, a scraper (22) is arranged at the position, close to the right side, of the top of the metal filter screen (24), a second thread sleeve is fixedly connected to the scraper (22), a second threaded rod (21) penetrates through the inner cavity of the second thread sleeve, a second opening is formed in the position, close to the bottom, of the left side of the box body (1), the left end of the second threaded rod (21) extends to the inner cavity of the second opening, a third sealing bearing is fixedly connected to the position, close to the bottom, of the right side of the box body (1), a supporting plate is fixedly connected to the top of the supporting plate, a servo motor (23) is fixedly connected to the top of the supporting plate, and the right end of the second threaded rod (21) penetrates through the inner cavity of the third sealing bearing, and is fixedly connected with the power output end of the servo motor (23).

6. The feeding device for rubber processing provided with a scrap rubber processing mechanism according to claim 5, wherein: the novel multifunctional cabinet is characterized in that a baffle (26) is arranged on the left side of the second opening, the left-view cross-sectional area of the baffle (26) is larger than that of the second opening, a second shaft pin is arranged at the bottom of the baffle (26), the baffle (26) is movably connected with the cabinet (1) through the second shaft pin, a clamping groove is formed in the top of the baffle (26), a clamping block (28) is inserted into an inner cavity of the clamping groove, a movable block (27) is fixedly connected to the top of the clamping block (28), a sliding block is fixedly connected to the right side of the movable block (27), sliding grooves matched with the sliding block are formed in the left side of the cabinet (1), and the sliding block is movably connected to an inner cavity of the sliding groove.

7. The feeding device for rubber processing provided with a scrap rubber processing mechanism according to claim 5, wherein: the bottom of the scraper (22) is attached to the top of the metal filter screen (24), and the length of the scraper (22) is consistent with the width of the metal filter screen (24).

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