Waterborne epoxy asphalt pavement structure for bridge floor waterproof layer and pavement method of waterborne epoxy asphalt pavement structure

Abstract

The invention relates to the technical field of road construction equipment, in particular to a waterborne epoxy asphalt pavement structure for a bridge floor waterproof layer and a pavement method.The waterborne epoxy asphalt pavement structure comprises a moving vehicle, an adjusting hopper is arranged on the moving vehicle, a discharging opening is formed in one end of the adjusting hopper, a screw rod is rotationally arranged in the adjusting hopper, and blades are arranged on the screw rod; an adjusting rod is rotatably arranged on the auxiliary block, a threaded hole is formed in the auxiliary block in a penetrating manner, a fixed mounting seat is arranged on the screw rod, a control motor is arranged in the fixed mounting seat, a control screw rod is arranged at the output end of the control motor, and the control screw rod is arranged in the threaded hole in a threaded penetrating manner; a control unit is arranged on the moving vehicle, and the input end of the control unit is electrically connected with an inclination angle sensor and a speed sensor. The control unit drives and controls the motor to change the included angle between the blade and the screw rod according to the driving road gradient and speed of the mobile vehicle, so that when the vehicle speed is reduced, the screw pitch of the blade bracket is increased, and the asphalt laying uniformity is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of road construction equipment, and in particular to a water-based epoxy asphalt paving structure for a bridge deck waterproof layer and a paving method thereof. Background Art

[0002] Asphalt is a dark brown complex mixture of hydrocarbons of different molecular weights and their non-metallic derivatives. It is a kind of highly viscous organic liquid. It is mainly used in industries such as coatings, plastics, rubber, and road paving.

[0003] Epoxy asphalt is often needed on traditional bridge decks, which requires transportation equipment to transport the asphalt to the bridge deck, pour the asphalt onto the bridge deck, and then spread and compact it by manual labor, rollers, etc.

[0004] In the related art, when asphalt is used for paving roads, it is necessary to put the asphalt into a paving device. The paving device mainly includes a mobile vehicle and a screw rod. The screw rod rotates to stir the asphalt in the mobile vehicle. As the mobile vehicle moves, the asphalt is poured onto the road surface through the discharge port of the mobile vehicle.

[0005] With regard to the above-mentioned related technologies, asphalt is laid on the road surface through the side baffles and height limit plates on both sides during the forward process. It is difficult for the paving vehicle to maintain a stable speed when encountering uphill and downhill slopes during the driving process, and the material discharge speed is difficult to keep up with the changes in vehicle speed, which leads to excessive or insufficient asphalt discharge. At the same time, it is difficult to distribute the asphalt evenly by relying solely on the spiral rod, resulting in different road surface heights after the asphalt is compacted, and low-lying water accumulation is prone to occur in the later stage. Summary of the invention

[0006] In order to solve the problem that the speed of vehicles traveling on roads with different slopes varies, which makes it difficult to accurately match the speed of asphalt feeding with the speed of vehicles, thereby affecting the uniformity of paving, a water-based epoxy asphalt paving structure and a paving method for a bridge deck waterproof layer are provided.

[0007] The present application provides a water-based epoxy asphalt paving structure for a bridge deck waterproof layer, comprising a mobile vehicle, an adjusting hopper is provided on the mobile vehicle, a material discharge port is provided at one end of the adjusting hopper, a spiral rod is rotatably provided inside the adjusting hopper, a first rotating shaft is provided on the rod body of the spiral rod, the first rotating shaft is perpendicular to the spiral rod, a blade is provided on the spiral rod, a first end of the blade is rotatably connected to the first rotating shaft, a second rotating shaft is provided on the surface of the blade, and the second rotating shaft is parallel to the first rotating shaft;

[0008] An auxiliary block is slidably provided on the spiral rod, a third rotating shaft is provided on the side of the auxiliary block, an adjusting rod is rotatably provided on the auxiliary block, a first end of the adjusting rod is rotatably connected to the third rotating shaft, a second end of the adjusting rod is rotatably connected to the second rotating shaft, a threaded hole is provided through the interior of the auxiliary block, an axis of the threaded hole is parallel to the axis of the spiral rod, a fixed mounting seat is provided on the spiral rod, a control motor is provided in the fixed mounting seat, a control screw is provided at the output end of the control motor, and the control screw is threadedly penetrated in the threaded hole;

[0009] The mobile vehicle is provided with a control unit, an input end of the control unit is electrically connected to a tilt angle sensor and a speed sensor, and an output end of the control motor is electrically connected to a control end of the control motor.

[0010] Preferably, a rotating seat is provided on the mobile vehicle, and an auxiliary rotating shaft is provided on the side of the adjusting hopper, and the auxiliary rotating shaft is rotatably connected to the rotating seat.

[0011] Preferably, an auxiliary gear is provided on the auxiliary rotating shaft, an auxiliary motor is provided on the rotating seat, a matching piece is provided at the output end of the auxiliary motor, the auxiliary gear is meshingly connected with the matching piece, and the control end of the auxiliary motor is electrically connected to the output end of the control unit.

[0012] Preferably, the matching piece is a first worm, and the auxiliary gear is a first worm wheel.

[0013] Preferably, a buffer bin is provided on the mobile vehicle, a feed port is provided on the top of the buffer bin, the feed port is communicated with the discharge port, asphalt is stored in the buffer bin, and a discharge port is provided on the side wall of the buffer bin.

[0014] Preferably, a limit plate is rotatably provided at the top edge of the discharge port, a first end of the limit plate is rotatably connected to the top edge of the discharge port, and a second end of the limit plate rotates around a rotation axis toward or away from a bottom edge of the discharge port.

[0015] Preferably, a second worm gear is provided on the rotating shaft of the limiting plate, a second worm is provided at the output end of the auxiliary motor, and the second worm is meshingly connected with the second worm gear.

[0016] A method for paving a water-based epoxy asphalt for a bridge deck waterproof layer, comprising:

[0017] S1, starting the tilt angle sensor, the speed sensor and the control unit to obtain the slope information and the driving speed of the moving vehicle's driving route in real time;

[0018] S2, the control unit controls the rotation direction and rotation distance of the output end of the control motor according to the speed and slope information of the moving vehicle, and adjusts the pitch of the blade;

[0019] S3, the control unit controls the auxiliary motor to adjust the inclination angle of the regulating hopper according to the slope information, and controls the outflow speed of the asphalt in the regulating hopper from the discharge port;

[0020] S4. The control unit synchronously controls the rotation angle of the limit plate to adjust the size of the discharge port of the buffer bin.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] 1. The present application obtains the slope of the road on which the mobile vehicle is traveling through an inclination angle sensor, obtains the speed of the mobile vehicle through a speed sensor, and the control unit drives the control motor to change the angle between the blade and the screw rod, so that when the vehicle speed decreases, the pitch in the blade bracket is increased to speed up the flow speed of the asphalt;

[0023] 2. The present application drives the auxiliary motor to control the tilt angle of the hopper through the control unit. When the vehicle speed decreases, the tilt angle of the hopper is increased, and the asphalt automatically flows toward the discharge port under the action of gravity, so that the discharge speed of the hopper is automatically increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic plan view of the assembly relationship of the overall structure of the present invention;

[0025] Figure 2 yes Figure 1 A magnified schematic diagram of part A;

[0026] Figure 3 is a cross-sectional view of the internal structure of the regulating hopper in the present invention;

[0027] Figure 4 yes Figure 3 A magnified schematic diagram of part B;

[0028] Figure 5 yes Figure 1 A magnified schematic diagram of part C;

[0029] Figure 6 It is a cross-sectional view of the internal structure of the buffer bin in the present invention;

[0030] Figure 7 It is a flow chart of the paving method in the present invention.

[0031] Description of reference numerals: 100, mobile vehicle; 110, tilt angle sensor; 120, speed sensor; 130, rotating seat; 140, auxiliary motor; 141, matching piece; 150, second worm; 200, adjusting hopper; 210, feeding port; 220, auxiliary rotating shaft; 230, auxiliary gear; 240, screw rod; 241, fixed mounting seat; 2411, first rotating shaft; 242, control motor; 242 1. Control screw; 243. Screw motor; 250. Blade; 251. Second rotating shaft; 260. Auxiliary block; 261. Through hole; 262. Third rotating shaft; 263. Adjustment rod; 2631. First adjustment hole; 2632. Second adjustment hole; 300. Buffer bin; 310. Feed inlet; 320. Expanding edge plate; 330. Discharge outlet; 340. Limiting plate; 350. Diverter trough; 360. Second worm gear. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-Figure 7 The present invention is described in further detail.

[0033] Embodiment 1

[0034] A water-based epoxy asphalt paving structure for bridge deck waterproofing layer, referring to Figure 1 , including a mobile vehicle 100, on which a control unit, an inclination angle sensor 110 and a speed sensor 120 are installed, wherein one input end of the control unit is electrically connected to the output end of the inclination angle sensor 110, and the inclination angle sensor 110 is used to obtain the slope information of the road on which the mobile vehicle 100 is traveling, and upload the slope information to the control unit. One input end of the control unit is electrically connected to the output end of the speed sensor 120, and the speed sensor 120 is used to obtain the moving speed of the mobile vehicle 100.

[0035] Reference Figure 1 and Figure 2, an adjusting hopper 200 is rotatably mounted on the mobile vehicle 100, and asphalt is stored inside the adjusting hopper 200, and a discharge port 210 is provided at one end of the adjusting hopper 200. An auxiliary rotating shaft 220 is provided on the side wall of the adjusting hopper 200, and the auxiliary rotating shaft 220 protrudes from the side wall of the adjusting hopper 200. A rotating seat 130 is installed on the mobile vehicle 100, and the adjusting hopper 200 is rotatably mounted on the rotating seat 130, and a rotating hole is provided in the rotating seat 130, and one end of the auxiliary rotating shaft 220 away from the adjusting hopper 200 passes through the rotating hole, and an auxiliary gear 230 is installed at one end of the auxiliary rotating shaft 220 passing through the rotating hole, and the auxiliary gear 230 is a first worm gear. An auxiliary motor 140 is installed on the mobile vehicle 100, and a matching piece 141 is installed on the output shaft of the auxiliary motor 140, and the matching piece 141 is a first worm, and the first worm is meshed and connected with the first worm gear. The output end of the control unit is electrically connected to the control end of the auxiliary motor 140. The control unit changes the inclination angle of the adjustment hopper 200 through the auxiliary motor 140 according to the slope of the road and the moving speed of the mobile vehicle 100, and uses gravity to automatically adjust the asphalt in the adjustment hopper 200, thereby controlling the unloading speed of the unloading port 210.

[0036] Reference Figure 1 and Figure 3 A spiral rod 240 is installed for rotation inside the regulating hopper 200, and a spiral motor 243 is installed at one end of the spiral rod 240 away from the discharge port 210. A plurality of blades 250 are installed on the rod body of the spiral rod 240. The spiral rod 240 is arranged along the length direction of the regulating hopper 200, and the spiral motor 243 drives the blades 250 to rotate around the spiral rod 240 to control the flow speed of the asphalt.

[0037] Reference Figure 3 and Figure 4 The screw rod 240 is provided with a fixed mounting seat 241, which protrudes from the surface of the screw rod 240. A first rotating shaft 2411 is installed on the side of the fixed mounting seat 241 facing away from the screw rod 240. The first rotating shaft 2411 is perpendicular to the screw rod 240 and protrudes from the rod body of the screw rod 240. A through hole is provided at one end of the blade 250, and the first rotating shaft 2411 is passed through the through hole, so that the blade 250 can rotate around the first rotating shaft 2411. A second rotating shaft 251 is provided on the surface of the blade 250, and the second rotating shaft 251 is arranged parallel to the first rotating shaft 2411.

[0038] Reference Figure 3 and Figure 4The screw rod 240 is slidably mounted with an auxiliary block 260 along the length direction of the screw rod 240. A through hole 261 is provided inside the auxiliary block 260, and the screw rod 240 is inserted into the through hole 261. A third rotating shaft 262 is provided on the surface of the auxiliary block 260, and the third rotating shaft 262 is arranged parallel to the first rotating shaft 2411. An adjusting rod 263 is installed between the auxiliary block 260 and the blade 250. A first adjusting hole 2631 is provided at the first end of the adjusting rod 263, and a second adjusting hole 2632 is provided at the second end of the adjusting rod 263. The axis of the first adjusting hole 2631 is parallel to the axis of the second adjusting hole 2632. The second rotating shaft 251 is inserted into the second adjusting hole 2632, and the third rotating shaft 262 is inserted into the first adjusting hole 2631. The adjusting rod 263 supports the blade 250 to rotate around the first rotating shaft 2411 to change the pitch of the blade 250.

[0039] Reference Figure 3 and Figure 4 , the control motor 242 is fixed to the mounting seat 241, the output shaft of the control motor 242 is arranged parallel to the axis direction of the screw rod 240, and the control screw rod 2421 is connected to the output shaft of the control motor 242. A threaded hole is provided inside the auxiliary block 260, and the control screw rod 2421 is inserted into the threaded hole. The control end of the control motor 242 is electrically connected to the output end of the control unit, and the control unit changes the distance between the auxiliary block 260 and the fixed mounting seat 241 through the control motor 242 according to the slope and the moving speed of the mobile vehicle 100. The angle between the driving blade 250 and the screw rod 240.

[0040] Reference Figure 5 and Figure 6, a buffer bin 300 is installed on the mobile vehicle 100, and the buffer bin 300 is used to store asphalt, to buffer the impact of vehicle speed changes, and to maintain the continuity and stability of asphalt supply. A feed port 310 is provided on the top of the buffer bin 300, and a flared edge plate 320 is provided on the edge of the feed port 310, and the discharge port 210 of the adjustment hopper is located above the flared edge plate 320. When the inclination angle of the adjustment hopper changes, the asphalt discharged from the discharge port 210 can enter the buffer bin 300 through the feed port 310. A discharge port 330 is provided on the side wall of the buffer bin 300, and the discharge port 330 faces the rear end of the mobile vehicle 100. A plurality of diverter grooves 350 are provided on the inner bottom surface of the buffer bin 300, and the plurality of diverter grooves 350 extend from the side close to the feed port 310 along the bottom plate of the buffer bin 300 toward the discharge port 330, and gaps are reserved between the plurality of diverter grooves 350. A limit rotation hole is provided at the top edge of the discharge port 330. A limit plate 340 is rotatably installed at the top edge of the discharge port 330, and a rotating shaft is installed at the first end edge of the limit plate 340. The rotating shaft is passed through the limit rotation hole, and the end of the rotating shaft protrudes from the side wall of the buffer bin 300. A second worm gear 360 is fixedly installed at the end of the rotating shaft. The output shaft of the auxiliary motor 140 is also connected to the second worm 150, and the second worm 150 is meshingly connected with the second worm gear 360. When the vehicle goes uphill and the speed decreases, the control unit drives the limit plate 340 to rotate by controlling the auxiliary motor 140, so that the distance between the second end of the limit plate 340 and the bottom edge of the discharge port 330 is reduced, and the posture of the blade 250 is changed to reduce the discharge speed of the asphalt.

[0041] Embodiment 2

[0042] Reference Figure 7 A method for paving a water-based epoxy asphalt for a bridge deck waterproof layer includes the water-based epoxy asphalt paving structure for a bridge deck waterproof layer described in the above embodiment. Specifically,

[0043] S1, start the tilt angle sensor 110, the speed sensor 120 and the control unit to obtain the slope information of the driving route of the mobile vehicle 100 in real time;

[0044] When the mobile vehicle 100 is paving asphalt on the road surface, the tilt angle sensor 110, the speed sensor 120 and the control unit are started. The speed sensor 120 is used to obtain the real-time moving speed of the vehicle, and the real-time moving speed of the mobile vehicle 100 is uploaded to the control unit. The control unit calculates the difference between the real-time moving speed and the preset speed to detect whether the asphalt feeding speed of the mobile vehicle 100 needs to be adjusted at the actual moving speed. The tilt angle sensor 110 is used to obtain the slope of the driving route of the mobile vehicle 100 during its movement, and upload the actual route slope to the control unit. The control unit compares the actual route slope with the horizontal angle to identify whether the driving route is downhill or uphill.

[0045] S2, the control unit controls the rotation direction and rotation distance of the output end of the control motor 242 according to the speed and slope information of the mobile vehicle 100, and adjusts the pitch of the blade 250;

[0046] When the control unit detects that the moving speed of the mobile vehicle 100 increases due to downhill movement, the control unit outputs a control signal to the control motor 242. The control motor 242 rotates through the control screw 2421, driving the auxiliary block 260 to move toward the direction close to the first rotating shaft 2411. The auxiliary block 260 drives the adjustment rod 263 to control the blade 250 to rotate around the first rotating shaft 2411, thereby reducing the projection of the blade 250 on the screw rod 240, thereby increasing the pitch of the blade 250 and accelerating the asphalt flow rate in the hopper 200.

[0047] When the control unit detects that the moving speed of the mobile vehicle 100 decreases due to uphill movement, the control motor 242 controls the rotation of the screw 2421 to drive the auxiliary block 260 to move in a direction away from the first rotating axis 2411. The auxiliary block 260 drives the adjustment rod 263 to control the blade 250 to rotate around the first rotating axis 2411, thereby increasing the projection of the blade 250 on the screw rod 240, thereby reducing the pitch of the blade 250 and reducing the asphalt flow speed in the regulating hopper 200.

[0048] S3, the control unit controls the auxiliary motor 140 to adjust the inclination angle of the regulating hopper 200 according to the slope information, and controls the outflow speed of the asphalt in the regulating hopper 200 from the discharge port 210;

[0049] At the same time, the control unit outputs a control signal to the auxiliary motor 140 according to the slope of the actual driving route. The auxiliary motor 140 drives the inclination angle of the adjustment hopper 200 through the first worm and the first worm gear, and changes the flow speed of the asphalt in the adjustment hopper 200 by the gravity of the asphalt. Specifically,

[0050] When the moving speed of the mobile vehicle 100 decreases due to going uphill, the control unit outputs a first control signal to the auxiliary motor 140, and the auxiliary motor 140 drives the first worm and the first worm wheel to rotate, so that the angle between the discharge port 210 of the adjusting hopper 200 and the horizontal line is reduced relative to the auxiliary rotating shaft 220 of the adjusting hopper 200, thereby reducing the inclination component of the gravity of the asphalt in the adjusting hopper 200 toward the discharge port 210, thereby slowing down the flow speed of the asphalt toward the discharge port 210.

[0051] When the moving speed of the mobile vehicle 100 increases due to downhill movement, the control unit outputs a second control signal to the auxiliary motor 140, and the auxiliary motor 140 drives the worm and the worm wheel to rotate, so that the angle between the discharge port 210 of the adjusting hopper 200 and the horizontal line increases relative to the auxiliary rotating shaft 220 of the adjusting hopper 200, thereby increasing the inclined component of the gravity of the asphalt in the adjusting hopper 200 toward the discharge port 210, thereby accelerating the flow speed of the asphalt toward the discharge port 210.

[0052] S4. The control unit synchronously controls the rotation angle of the limit plate 340 to adjust the size of the discharge port 330 of the buffer bin 300 .

[0053] When the control unit detects that the moving speed of the mobile vehicle 100 does not match the preset speed, the control unit outputs a control signal to the auxiliary motor 140, and the auxiliary motor 140 controls the second worm 150 and the second worm wheel 360 to rotate through the output shaft, so that the limit plate 340 rotates around the rotation axis to control the opening and closing size of the discharge port 330. When the moving speed of the mobile vehicle 100 increases, the limit plate 340 is controlled to increase the opening and closing angle of the discharge port 330 to increase the flow speed of the asphalt. When the moving speed of the mobile vehicle 100 decreases, the limit plate 340 is controlled to reduce the opening and closing angle of the discharge port 330 to reduce the flow speed of the asphalt.

[0054] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A water-based epoxy asphalt paving structure for a bridge deck waterproof layer, characterized in that: The invention comprises a mobile vehicle (100), wherein an adjusting hopper (200) is arranged on the mobile vehicle (100), a material discharge port (210) is arranged at one end of the adjusting hopper (200), a spiral rod (240) is rotatably arranged inside the adjusting hopper (200), a first rotating shaft (2411) is arranged on the rod body of the spiral rod (240), the first rotating shaft (2411) is perpendicular to the spiral rod (240), a blade (250) is arranged on the spiral rod (240), a first end of the blade (250) is rotatably connected to the first rotating shaft (2411), a second rotating shaft (251) is arranged on the surface of the blade (250), and the second rotating shaft (251) is parallel to the first rotating shaft (2411); An auxiliary block (260) is slidably arranged on the screw rod (240), a third rotating shaft (262) is arranged on the side of the auxiliary block (260), an adjusting rod (263) is rotatably arranged on the auxiliary block (260), a first end of the adjusting rod (263) is rotatably connected to the third rotating shaft (262), a second end of the adjusting rod (263) is rotatably connected to the second rotating shaft (251), a threaded hole (264) is provided through the interior of the auxiliary block (260), an axis of the threaded hole (264) is parallel to the axis of the screw rod (240), a fixed mounting seat (241) is arranged on the screw rod (240), a control motor (242) is arranged in the fixed mounting seat (241), a control screw rod (2421) is arranged at the output end of the control motor (242), and the control screw rod (2421) is threadedly arranged in the threaded hole (264); The mobile vehicle (100) is provided with a control unit, the input end of the control unit is electrically connected to the tilt angle sensor (110) and the speed sensor (120), and the output end of the control motor (242) is electrically connected to the control end of the control motor (242).

2. The water-based epoxy asphalt paving structure for bridge deck waterproofing layer according to claim 1 is characterized in that: The mobile vehicle (100) is provided with a rotating seat (130), and the side of the regulating hopper (200) is provided with an auxiliary rotating shaft (220), and the auxiliary rotating shaft (220) is rotatably connected to the rotating seat (130).

3. The water-based epoxy asphalt paving structure for bridge deck waterproofing layer according to claim 2 is characterized in that: An auxiliary gear (230) is arranged on the auxiliary rotating shaft (220), an auxiliary motor (140) is arranged on the movable seat, a matching piece (141) is arranged at the output end of the auxiliary motor (140), the auxiliary gear (230) is meshingly connected with the matching piece (141), and a control end of the auxiliary motor (140) is electrically connected to the output end of the control unit.

4. The water-based epoxy asphalt paving structure for bridge deck waterproofing layer according to claim 3 is characterized in that: The matching piece (141) is a first worm, and the auxiliary gear (230) is a first worm wheel.

5. The water-based epoxy asphalt paving structure for bridge deck waterproofing layer according to claim 1 is characterized in that: The mobile vehicle (100) is provided with a buffer bin (300), the top of the buffer bin (300) is provided with a feed port (310), the feed port (310) is connected with the discharge port (210), asphalt is stored in the buffer bin (300), and a discharge port (330) is provided on the side wall of the buffer bin (300).

6. The water-based epoxy asphalt paving structure for bridge deck waterproofing layer according to claim 5 is characterized in that: A limiting plate (340) is rotatably provided at the top edge of the discharge port (330), a first end of the limiting plate (340) is rotatably connected to the top edge of the discharge port (330), and a second end of the limiting plate (340) rotates around a rotation axis toward or away from the bottom edge of the discharge port (330).

7. The water-based epoxy asphalt paving structure for bridge deck waterproofing layer according to claim 6 is characterized in that: A second worm gear (360) is arranged on the rotating shaft of the limiting plate (340), and a second worm (150) is arranged at the output end of the auxiliary motor (140), and the second worm (150) is meshingly connected with the second worm gear (360).

8. A method for paving a waterborne epoxy asphalt for a bridge deck waterproof layer, using the waterborne epoxy asphalt paving structure for a bridge deck waterproof layer according to any one of claims 1 to 7 for paving, characterized in that: S1, starting the tilt angle sensor (110), the speed sensor (120) and the control unit to obtain in real time the slope information and the driving speed of the driving route of the mobile vehicle (100); S2, the control unit controls the rotation direction and rotation distance of the output end of the control motor (242) according to the speed and slope information of the moving vehicle (100), and adjusts the pitch of the blade (250); S3, the control unit controls the auxiliary motor (140) to adjust the inclination angle of the regulating hopper (200) according to the slope information, and controls the outflow speed of the asphalt in the regulating hopper (200) from the discharge port (210); S4. The control unit synchronously controls the rotation angle of the limit plate (340) to adjust the size of the discharge port (330) of the buffer bin (300).

Images