A torsion shear bolt cleaning air drying device

Abstract

The application discloses a kind of torsional shear type bolt cleaning and drying device, including drying machine body and the feeding opening opened in the right side of drying machine body, the drying mechanism, bearing mechanism and magnetic separation mechanism are sequentially provided in the drying machine body along its height downward, bearing mechanism includes drive motor, driving shaft, three track transmission shafts, bearing track, several water seepage holes, a group of end discs, air blowing pipeline, several high-pressure nozzles and several air outlets.The beneficial effects of the present application are that the bearing track will drive the torsional shear type bolt to do a flip motion when rotating, facilitating the quick air-drying treatment of the torsional shear type bolt, the air blowing pipeline can automatically blow off the water droplets and impurities adhering to the surface of the bearing track, the bearing track can be reversed to achieve automatic discharging, the drying mechanism drives two groups of branch pipes to swing and reciprocate, increasing the air blowing area, and the magnetic separation mechanism can adsorb and recycle the metal scrap generated during drying.

Description

Technical Field

[0001] This invention relates to the field of torque-shear bolt processing technology, specifically to a drying device for cleaning torque-shear bolts. Background Technology

[0002] Torque-shear bolts are high-strength fasteners, mainly composed of a bolt, nut, and washer. They are manufactured using a special process that ensures they can firmly connect two components even under strong shear and torque forces. Torque-shear bolts are primarily used in the construction of industrial and civil buildings, railway bridges, highway bridges, pipeline bridges, tower and mast structures, boiler frames, boiler steel structures, large-span industrial plants, high-rise civil buildings, various towers, light steel structures, lifting machinery, and other steel structure connections.

[0003] During the processing of torque-shear bolts, those that have undergone cold heading and thread rolling require cleaning to remove surface oil, iron filings, and other impurities. Cleaning typically involves conveying the bolts via a mesh belt conveyor through spray nozzles, followed by air drying through a drying duct. However, because the torque-shear bolts accumulate on the mesh belt conveyor, the bolts at the bottom do not fully contact the air source, resulting in low drying efficiency and incomplete drying, which affects their use in subsequent heat treatment processes.

[0004] It should be noted that the above content falls within the inventor's technical knowledge and does not necessarily constitute prior art. Summary of the Invention

[0005] To address the above deficiencies, this invention provides an air-drying device for cleaning torsion shear bolts, thereby solving the problem of rapid air-drying of torsion shear bolts after cleaning.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A drying device for cleaning torsion shear bolts includes a drying body and a feeding port on the right side of the drying body. The drying body is provided with a drying mechanism, a bearing mechanism and a magnetic separation mechanism in sequence along its height.

[0008] The supporting mechanism includes a drive motor, a drive shaft, three track drive shafts, a supporting track, several drainage holes, a set of end plates, an air blowing pipe, several high-pressure nozzles, and several air outlets. The drive motor is horizontally mounted on the top left side of the dryer body. The drive shaft is mounted on the rotating end of the drive motor. The three track drive shafts are movably mounted inside the dryer body and are hollow inside. The supporting track is fitted outside the three track drive shafts. Several drainage holes are evenly distributed on the supporting track. A set of end plates is movably mounted at both ends of the dryer body, and their bottoms are respectively attached to the supporting track. The air blowing pipe is inserted into the bottom track drive shaft through a rotating joint. Several high-pressure nozzles are obliquely mounted on the bottom right side of the air blowing pipe. Several air outlets are evenly distributed on the surface of the bottom track drive shaft.

[0009] Furthermore, the drying mechanism includes a fixed frame, a sliding rack, a set of rotating shafts, a set of incomplete gears, a set of swing frames, a set of rotary motors, a set of inclined rods, a set of hinge seats, a set of main pipes, and two sets of branch pipes. The fixed frame is installed at the top of the drying machine body, the sliding rack is slidably installed at the bottom of the fixed frame, a set of rotating shafts is movably inserted into both ends of the bottom of the fixed frame, a set of incomplete gears is installed at the center of a set of rotating shafts and meshes with the sliding rack, a set of swing frames is installed at the bottom of a set of rotating shafts, a set of rotary motors is installed at the upper end of a set of swing frames, a set of inclined rods is installed on the rotating end of a set of rotary motors, a set of hinge seats is installed at the bottom of a set of swing frames, one end of each set of main pipes is inserted and connected to the corresponding inclined rod, and the other end is hinged to the corresponding hinge seat, and the two sets of branch pipes are evenly installed on a set of main pipes.

[0010] Furthermore, a drive shaft is movably inserted into the left rear end of the air dryer body. The right end of the drive shaft is connected to the rear end of the sliding rack via a crank-connecting rod structure, and the drive shaft and the drive shaft are connected by a set of transmission bevel gears.

[0011] Furthermore, a group of main pipes has several air drying vents evenly distributed at the bottom, and these air drying vents are arranged radially, with their diameter gradually decreasing near the center.

[0012] Furthermore, the magnetic separation mechanism includes a servo cylinder, a pusher frame, a connecting plate, a sealing plate, a motor, a rotating disk, and several magnetic rods. The servo cylinder is horizontally installed at the rear end of the bottom of the dryer body. The pusher frame is installed on the telescopic end of the servo cylinder. The connecting plate is installed at the front end of the pusher frame. The sealing plate is hinged to the front end of the connecting plate. The motor is installed on the left side of the sealing plate, and its rotating end is movably inserted into the sealing plate. The rotating disk is installed on the rotating end of the motor, and several magnetic rods are evenly installed on the rotating disk.

[0013] Furthermore, a locking frame is movably mounted on the left end of the push frame, a locking bolt is mounted on the locking frame, and a locking nut is screwed onto the locking bolt.

[0014] Furthermore, a pulley one is installed at the rear end of the drive shaft, and a pulley two is installed at the rear end of the top track drive shaft, with a drive belt fitted on both pulley one and pulley two.

[0015] Furthermore, the air blowing pipe and a set of main pipes are respectively connected to an external air compressor.

[0016] Furthermore, a drain outlet is provided on the left side of the bottom of the air dryer body, and a corresponding movable frame is placed on the right side of the feeding port, with a discharge trough installed at an angle on the upper end of the movable frame.

[0017] This invention provides a drying device for cleaning torsion shear bolts, which has the following advantages: by placing the cleaned torsion shear bolts into the arc-shaped recess of the carrier track, when the drive motor drives the carrier track to rotate, the arc-shaped recess will cause the torsion shear bolts to rotate, thereby facilitating the rapid drying of the torsion shear bolts and making the drying of the torsion shear bolts more thorough. The air blowing pipe can automatically blow off the water droplets and impurities adhering to the surface of the carrier track. The carrier track can be reversed to achieve automatic unloading, which is convenient and practical.

[0018] The air drying mechanism uses a set of rotary motors to first drive two sets of branch pipes to swing, so as to achieve uniform air blowing. At the same time, the drive motor can drive a set of swing frames to swing back and forth through a set of rotating shafts to increase the air blowing area.

[0019] The magnetic separation mechanism uses an electric motor to drive several magnetic rods to rotate, which can adsorb the metal waste generated during air drying. The servo cylinder drives the sealing plate to open automatically through the push frame, and the sealing plate can be deflected, making it convenient for workers to clean and recycle the metal impurities adsorbed on the magnetic rods. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a torque-shear type bolt cleaning and drying device according to the present invention.

[0021] Figure 2 This is a schematic diagram of the transmission belt and drive motor described in this invention.

[0022] Figure 3 This is a schematic diagram of the bottom track drive shaft and the load-bearing track of the present invention.

[0023] Figure 4 This is a schematic diagram of a set of end-panel installations according to the present invention.

[0024] Figure 5 This is a schematic diagram of the air-drying mechanism and two sets of branch pipes of the present invention.

[0025] Figure 6 This is a side view of the fixing frame described in this invention.

[0026] Figure 7This is a schematic diagram of the transmission shaft of the present invention.

[0027] Figure 8 This is a schematic diagram of the magnetic separation mechanism and locking frame of the present invention.

[0028] Figure 9 This is a schematic diagram of the rotating disk described in this invention.

[0029] Figure 10 This is a schematic diagram of the deflection of the sealing plate described in this invention.

[0030] Figure 11 This is a top view of the discharge trough described in this invention.

[0031] In the diagram: 1. Dryer body; 2. Feed inlet; 3. Drive motor; 4. Drive shaft; 5. Track drive shaft; 6. Load-bearing track; 7. Drain hole; 8. End plate; 9. Air blowing pipe; 10. High-pressure nozzle; 11. Air outlet; 12. Fixed frame; 13. Sliding rack; 14. Rotating shaft; 15. Incomplete gear; 16. Swing frame; 17. Rotary motor; 18. Diagonal bar; 19. Hinge seat; 20. Main pipe; 21. Branch pipe; 2 2. Drive shaft; 23. Crank and connecting rod structure; 24. Drive bevel gear set; 25. Air drying port; 26. Servo cylinder; 27. Push frame; 28. Connecting plate; 29. ​​Sealing plate; 30. Motor; 31. Rotating disc; 32. Magnetic rod; 33. Locking frame; 34. Locking bolt; 35. Locking nut; 36. Belt pulley one; 37. Belt pulley two; 38. Drive belt; 39. Drain outlet; 40. Moving frame; 41. Discharge chute. Detailed Implementation

[0032] The present invention will now be described in detail with reference to the accompanying drawings, such as... Figure 1-11 As shown: A drying device for cleaning torsion shear bolts includes a drying body 1 and a feeding port 2 opened on the right side of the drying body 1. The drying body 1 is provided with a drying mechanism, a bearing mechanism and a magnetic separation mechanism in sequence along its height.

[0033] The supporting mechanism includes a drive motor 3, a drive shaft 4, three track drive shafts 5, a supporting track 6, several drainage holes 7, a set of end plates 8, an air blowing pipe 9, several high-pressure nozzles 10, and several air outlets 11. The drive motor 3 is horizontally installed on the top left side of the dryer body 1. The drive shaft 4 is installed on the rotating end of the drive motor 3. The three track drive shafts 5 are movably installed inside the dryer body 1 and are hollow inside. The supporting track 6 is fitted outside the three track drive shafts 5. Several drainage holes 7 are evenly opened on the supporting track 6. A set of end plates 8 are movably installed at both ends inside the dryer body 1, and their bottoms are respectively attached to the supporting track 6. The air blowing pipe 9 is inserted into the bottom track drive shaft 5 through a rotating joint. Several high-pressure nozzles 10 are obliquely installed on the bottom right side of the air blowing pipe 9. Several air outlets 11 are evenly opened on the surface of the bottom track drive shaft 5.

[0034] The drying mechanism includes a fixed frame 12, a sliding rack 13, a set of rotating shafts 14, a set of incomplete gears 15, a set of swing frames 16, a set of rotary motors 17, a set of inclined rods 18, a set of hinge seats 19, a set of main pipes 20, and two sets of branch pipes 21. The fixed frame 12 is installed at the top inside the drying machine body 1. The sliding rack 13 is slidably installed at the bottom of the fixed frame 12. The set of rotating shafts 14 is movably inserted into both ends of the bottom of the fixed frame 12. The set of incomplete gears 15 is installed at the center of the set of rotating shafts 14 and meshes with the sliding rack 13. The set of swing frames 16 is installed at the bottom of the set of rotating shafts 14. The set of rotary motors 17 is installed at the upper end of the set of swing frames 16. The set of inclined rods 18 is installed on the rotating end of the set of rotary motors 17. The set of hinge seats 19 is installed at the bottom of the set of swing frames 16. One end of each set of main pipes 20 is inserted and connected to the corresponding inclined rod 18, and the other end is hinged to the corresponding hinge seat 19. The two sets of branch pipes 21 are evenly installed on the set of main pipes 20.

[0035] A drive shaft 22 is movably inserted at the rear left side of the air dryer body 1. The right end of the drive shaft 22 is connected to the rear end of the sliding rack 13 through a crank-connecting rod structure 23, and the drive shaft 4 is connected to the drive shaft 22 through a set of transmission bevel gears 24.

[0036] A set of main pipes 20 has several air drying ports 25 evenly opened at the bottom. The air drying ports 25 are arranged radially, and their diameter gradually decreases near the center.

[0037] The magnetic separation mechanism includes a servo cylinder 26, a pusher frame 27, a connecting plate 28, a sealing plate 29, a motor 30, a rotating disk 31, and several magnetic rods 32. The servo cylinder 26 is horizontally installed at the rear end of the bottom of the dryer body 1. The pusher frame 27 is installed on the telescopic end of the servo cylinder 26. The connecting plate 28 is installed at the front end of the pusher frame 27. The sealing plate 29 is hinged to the front end of the connecting plate 28. The motor 30 is installed on the left side of the sealing plate 29, and its rotating end is movably inserted into the sealing plate 29. The rotating disk 31 is installed on the rotating end of the motor 30. Several magnetic rods 32 are evenly installed on the rotating disk 31.

[0038] A locking frame 33 is movably installed on the left end of the push frame 27. A locking bolt 34 is installed on the locking frame 33, and a locking nut 35 is screwed onto the locking bolt 34.

[0039] A pulley 36 is installed at the rear end of the drive shaft 4, and a pulley 37 is installed at the rear end of the top track drive shaft 5. A drive belt 38 is fitted on both pulley 36 and pulley 37.

[0040] The air blowing pipe 9 and a set of main pipes 20 are respectively connected to an external air compressor.

[0041] A drain outlet 39 is opened on the left side of the bottom of the air dryer body 1, and a corresponding movable frame 40 is placed on the right side of the feeding port 2. A discharge trough 41 is installed at an angle on the upper end of the movable frame 40.

[0042] The working principle of this implementation plan is as follows: The electrical equipment used in this device is controlled by an external controller. There is a sealed door hinged at the feeding port 2. When using it, the user first puts the cleaned torsion shear bolt into the arc-shaped recess of the bearing track 6.

[0043] When flipped: Drive motor 3 is horizontally mounted on the top left side of the dryer body 1. Drive shaft 4 is mounted on the rotating end of drive motor 3. Three track drive shafts 5 are movably mounted inside the dryer body 1 via fastening bearings, and the interior is hollow. Carrying tracks 6 are fitted onto the outside of the three track drive shafts 5. Several drainage holes 7 are evenly distributed on the carrying tracks 6. A set of end plates 8 are movably mounted at both ends inside the dryer body 1, and their bottoms are respectively in contact with the carrying tracks 6. Air blowing pipes 9 are inserted into the bottom track drive shaft 5 via rotating joints. When the track drive shaft 5 rotates, the air blowing pipes 9 do not rotate. Several high-pressure nozzles 10 are obliquely installed on the right side of the bottom of the air blowing pipe 9. Several air outlets 11 are evenly distributed on the surface of the bottom track drive shaft 5. A pulley 36 is installed at the rear end of the drive shaft 4, and a pulley 37 is installed at the rear end of the top track drive shaft 5. A drive belt 38 is fitted on both pulleys 36 and 37. The air blowing pipe 9 and a set of main pipes 20 are connected to an external air compressor. A drain outlet 39 is opened on the left side of the bottom of the air dryer body 1. A corresponding movable frame 40 is placed on the right side of the feeding port 2. A discharge trough 41 is obliquely installed on the upper end of the movable frame 40. Figure 1 — Figure 4 As shown, a set of end plates 8 are located on both sides of the load-bearing track 6, serving the purpose of redirection and clamping. The drive motor 3 first drives the load-bearing track 6 outside the three track drive shafts 5 to rotate through the drive shaft 4 and the transmission belt 38. Under the action of lifting force, the arc-shaped concave part will drive the torsion shear bolt to rotate, which facilitates the rapid air drying of the torsion shear bolt, improves the air drying efficiency of the torsion shear bolt, and makes the air drying of the torsion shear bolt more thorough. The air blowing pipe 9 can automatically blow off the water droplets and impurities adhering to the surface of the load-bearing track 6. The load-bearing track 6 reverses, and with the help of the discharge chute 41, automatic material discharge is achieved, which is convenient and practical.

[0044] During air drying: A fixed frame 12 is installed at the top inside the air dryer body 1; a sliding rack 13 is slidably installed at the bottom of the fixed frame 12; a set of rotating shafts 14 are movably inserted into both ends of the bottom of the fixed frame 12 via fastening bearings; a set of incomplete gears 15 are installed at the center of the set of rotating shafts 14 and mesh with the sliding rack 13 respectively; a set of swing frames 16 are installed at the bottom of the set of rotating shafts 14; a set of rotary motors 17 are installed at the upper end of the set of swing frames 16; a set of inclined rods 18 are installed on the rotating end of the set of rotary motors 17; a set of hinge seats 19 are installed at the bottom of the set of swing frames 16; and a set of main pipes 20 are connected at one end to the... The corresponding diagonal rod 18 is inserted and connected, and the other end is hinged to the corresponding hinge seat 19. Two sets of branch pipes 21 are evenly installed on one set of main pipes 20. The left rear end of the air dryer body 1 is movably inserted with a drive shaft 22 through a fastening bearing. The right end of the drive shaft 22 is connected to the rear end of the sliding rack 13 through a crank connecting rod structure 23. The drive shaft 4 is connected to the drive shaft 22 through a set of transmission bevel gears 24. Several air drying ports 25 are evenly opened at the bottom of one set of main pipes 20. The air drying ports 25 are arranged radially, and the diameter gradually decreases near the center to ensure pressure and achieve uniform air outlet. Figure 5 — Figure 7 As shown, a set of rotary motors 17 first drives two sets of branch pipes 21 to swing through a set of inclined rods 18 and a set of main pipes 20 to achieve uniform air blowing. At the same time, the drive motor 3 drives the sliding rack 13 to reciprocate through the drive shaft 4, transmission shaft 22 and crank connecting rod structure 23. The sliding rack 13 drives a set of swing frames 16 at the bottom of a set of rotating shafts 14 to swing back and forth through a set of incomplete gears 15, thereby increasing the air blowing area and making the air source fully contact the torsion shear bolt.

[0045] During magnetic separation: Servo cylinder 26 is horizontally mounted at the rear bottom of the dryer body 1; push frame 27 is mounted on the telescopic end of servo cylinder 26; connecting plate 28 is mounted on the front end of push frame 27; sealing plate 29 is hinged to the front end of connecting plate 28; motor 30 is mounted on the left side of sealing plate 29, and its rotating end is movably inserted into sealing plate 29 via a fastening bearing; rotating disk 31 is mounted on the rotating end of motor 30; several magnetic rods 32 are evenly mounted on rotating disk 31; locking frame 33 is movably mounted on the left end of push frame 27; locking bolt 34 is mounted on locking frame 33; and locking nut 35 is suspended and screwed onto locking bolt 34. Figure 8 — Figure 10As shown, after the cleaned torsion shear bolts are conveyed out of the ultrasonic cleaning tank by the mesh belt conveyor, metal waste from the water surface easily adheres to their surface. The water droplets and metal waste generated during air drying are blown onto the magnetic rods 32 through several high-pressure nozzles 10. The motor 30 drives several magnetic rods 32 to rotate through the rotating disk 31, which can adsorb the metal waste. When it is necessary to clean the metal waste on the magnetic rods 32, the extension end of the servo cylinder 26 extends, which drives the connecting plate 28 and the sealing plate 29 to open through the push frame 27. Then, the user loosens the locking nut 35 and pulls the locking frame 33 backward. At this time, the front end of the locking frame 33 loosens the sealing plate 29, and the user deflects the sealing plate 29 to one side, which facilitates the cleaning and recycling of the metal impurities adsorbed on the magnetic rods 32.

[0046] The above technical solutions only embody the preferred technical solutions of the present invention. Any modifications that may be made by those skilled in the art to certain parts thereof embody the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. A drying device for cleaning torque-shear type bolts, comprising a drying body (1) and a feeding port (2) opened on the right side of the drying body (1), characterized in that, The air-drying machine body (1) is provided with an air-drying mechanism, a bearing mechanism and a magnetic separation mechanism in sequence along its height downwards; The supporting mechanism includes a drive motor (3), a drive shaft (4), three track drive shafts (5), a supporting track (6), several water seepage holes (7), a set of end plates (8), an air blowing pipe (9), several high-pressure nozzles (10), and several air outlets (11). The drive motor (3) is horizontally installed on the top left side of the air dryer body (1). The drive shaft (4) is installed on the rotating end of the drive motor (3). The three track drive shafts (5) are movably installed inside the air dryer body (1) and are hollow inside. The supporting track (6) is fitted on the outside of the three track drive shafts (5). Several water seepage holes (7) are evenly opened on the supporting track (6) and their bottoms are respectively attached to the supporting track (6). The air blowing pipe (9) is inserted into the bottom track drive shaft (5) through a rotating joint. Several high-pressure nozzles (10) are inclinedly installed on the bottom right side of the air blowing pipe (9). Several air outlets (11) are evenly opened on the surface of the bottom track drive shaft (5). A set of end plates (8) are located on both sides of the load-bearing track (6) to serve as a reversing and pressing mechanism, making the load-bearing track (6) into an arc-shaped concave part. The drive motor (3) drives the load-bearing track (6) to rotate. Under the action of the lifting force, the arc-shaped concave part will drive the torsion shear bolt to make a flipping motion.

2. The air-drying device for cleaning torque-shear type bolts according to claim 1, characterized in that, The drying mechanism includes a fixed frame (12), a sliding rack (13), a set of rotating shafts (14), a set of incomplete gears (15), a set of swing frames (16), a set of rotary motors (17), a set of inclined rods (18), a set of hinge seats (19), a set of main pipes (20), and two sets of branch pipes (21). The fixed frame (12) is installed at the top inside the drying machine body (1). The sliding rack (13) is slidably installed at the bottom of the fixed frame (12). A set of rotating shafts (14) is movably inserted into both ends of the bottom of the fixed frame (12). A set of incomplete gears (15) is installed on a set of rotating shafts (16). At the center of the shaft (14), and respectively meshing with the sliding rack (13), a set of swing frames (16) are installed at the bottom of a set of rotating shafts (14), a set of rotary motors (17) are installed at the upper end of a set of swing frames (16), a set of inclined rods (18) are installed on the rotating end of a set of rotary motors (17), a set of hinge seats (19) are installed at the bottom of a set of swing frames (16), a set of main pipes (20) are respectively connected to the corresponding inclined rods (18) at one end and hinged to the corresponding hinge seats (19) at the other end, and two sets of branch pipes (21) are evenly installed on a set of main pipes (20).

3. The air-drying device for cleaning torque-shear type bolts according to claim 1, characterized in that, The air dryer body (1) has a drive shaft (22) movably inserted at the rear left side. The right end of the drive shaft (22) is connected to the rear end of the sliding rack (13) through a crank-connecting rod structure (23). The drive shaft (4) and the drive shaft (22) are connected by a set of transmission bevel gears (24).

4. The air-drying device for cleaning torque-shear type bolts according to claim 2, characterized in that, A set of main pipes (20) has several air drying ports (25) evenly opened at the bottom. The air drying ports (25) are arranged radially, and the diameter gradually decreases near the center.

5. The air-drying device for cleaning torque-shear type bolts according to claim 1, characterized in that, The magnetic separation mechanism includes a servo cylinder (26), a pusher frame (27), a connecting plate (28), a sealing plate (29), a motor (30), a rotating disk (31), and several magnetic rods (32). The servo cylinder (26) is horizontally installed at the rear end of the bottom of the air dryer body (1). The pusher frame (27) is installed on the telescopic end of the servo cylinder (26). The connecting plate (28) is installed at the front end of the pusher frame (27). The sealing plate (29) is hinged to the front end of the connecting plate (28) by a hinge. The motor (30) is installed on the left side of the sealing plate (29), and its rotating end is movably inserted into the sealing plate (29). The rotating disk (31) is installed on the rotating end of the motor (30). Several magnetic rods (32) are evenly installed on the rotating disk (31).

6. The air-drying device for cleaning torque-shear type bolts according to claim 5, characterized in that, A locking frame (33) is movably installed on the left end of the push frame (27), a locking bolt (34) is installed on the locking frame (33), and a locking nut (35) is screwed onto the locking bolt (34).

7. The air-drying device for cleaning torque-shear type bolts according to claim 1, characterized in that, The drive shaft (4) has a pulley 1 (36) installed at the rear end, and the top track drive shaft (5) has a pulley 2 (37) installed at the rear end, and a drive belt (38) is fitted on the pulley 1 (36) and the pulley 2 (37).

8. The air-drying device for cleaning torque-shear type bolts according to claim 1, characterized in that, The air blowing pipe (9) and a set of main pipes (20) are respectively connected to an external air compressor.

9. The air-drying device for cleaning torque-shear type bolts according to claim 1, characterized in that, The air dryer body (1) has a drain outlet (39) on the left side of the bottom, and a corresponding movable frame (40) is placed on the right side of the feeding port (2). A discharge trough (41) is installed at the upper end of the movable frame (40).

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