CN218968115U - Feeding device for cleaning pipe - Google Patents

Abstract

The utility model belongs to the technical field of the pipe processing and specifically relates to a clean material feeding unit of using of tubular product is related to, and it includes the pipe cover, puts pipe support and material feeding unit, put the ascending mid portion of its length direction of perpendicular to on the pipe support and be the washing district, follow put the length direction of pipe support, the both sides in washing district are respectively material loading district and unloading district, the pipe cover is put on the pipe support along vertical direction sliding connection through lifting unit to be located the washing district top, material feeding unit includes the slip frame and is used for removing the slip subassembly of slip frame, the length direction sliding connection of slip frame perpendicular to put the pipe support is put on the pipe support, and this application has the effect of being convenient for wash tubular product.

Description

Feeding device for cleaning pipe

Technical Field

The application relates to the field of pipe machining, in particular to a feeding device for cleaning a pipe.

Background

The pipe is a collective name of parts which play roles in connection, control, direction change, diversion, sealing, support and the like in a pipeline system.

The utility model provides a cleaning device for tubular product is to chinese patent with bulletin number CN112108466a, includes the supporting seat, the upper end of supporting seat is from left to right being equipped with fixture and clearance mechanism in proper order, clearance mechanism includes the pipe, is located the inboard middle part of pipe and slip cap establishes the ring on the pipe outer wall, the both ends of water pipe extend to the outside of pipe respectively, and the one end annular array of water pipe is fixed to be linked together and is had the shower nozzle, pipe outer wall both ends edge all rotates and is connected with the connecting rod, two the one end that the pipe was kept away from to the connecting rod all rotates and is connected with the scraper blade, two all be equipped with the extensible member between the one end that the connecting rod was kept away from to the scraper blade and the outer wall of pipe, two all rotate on the corresponding one end outer wall of connecting rod and be connected with the push rod.

When the technical scheme is used for cleaning the pipe, when the water pressure is high or the water quantity is high, the water for cleaning the pipe is easy to splash, so that the pipe is inconvenient to clean.

Disclosure of Invention

In order to be convenient for wash tubular product, this application provides a material feeding unit for tubular product cleanness.

The application provides a material feeding unit is used in tubular product cleanness adopts following technical scheme:

the utility model provides a clear material feeding unit of using of tubular product, includes the pipe cover, puts pipe support and material feeding unit, put the ascending mid portion of perpendicular to its length direction on the pipe support and be the washing district, follow put the length direction of pipe support, the both sides in washing district are respectively material loading district and unloading district, the pipe cover is put on the pipe support along vertical direction sliding connection through lifting unit to be located the washing district top, material feeding unit includes the slip frame and is used for removing the slip subassembly of slip frame, the length direction sliding connection of the perpendicular to pipe support of slip frame is put on the pipe support.

Through adopting above-mentioned technical scheme, place the tubular product on the carriage, remove the carriage from the material loading district to the clean district, establish the pipe cover on the tubular product, when wasing the tubular product inner wall, the water that splashes out from between brush and the tubular product inner wall is blocked by the pipe cover to be convenient for wash the tubular product.

Optionally, the lifting assembly includes halyard, action wheel and guide pulley are all rotated and are connected at the top of putting the pipe support, put and be connected with the actuating source that is used for rotating the action wheel on the pipe support, the halyard is around establishing on the action wheel, the one end and the action wheel of halyard are fixed, and the other end is walked around the guide pulley and is connected with the top of tube housing.

By adopting the technical scheme, the pipe is placed on the sliding frame and moved to the cleaning area, the driving wheel is rotated, so that the lifting rope is unreeled, and the pipe cover moves towards the pipe placing frame along the vertical direction under the dead weight and is abutted with the sliding frame; after the cleaning is finished, the pipe cover is pulled up by the winding lifting rope, so that the lifting of the pipe cover is realized.

Optionally, the subassembly that slides includes gear and rack, the gear is provided with a plurality ofly, a plurality of the gear sets up and rotates to be connected on putting the pipe support perpendicular to the length direction who puts the pipe support, it is provided with the spout to put the length direction that the pipe support was put to perpendicular to on putting the pipe support, be connected with the draw runner on the rack that slides, the draw runner is located the spout and along the length direction sliding fit who puts the pipe support with the spout, the rack is connected on the lateral wall that keeps away from the draw runner on the rack that slides, rack and gear engagement, be connected with the driving machine that is used for driving gear on putting the pipe support.

By adopting the technical scheme, the driving machine is started, the gear is rotated, the rack moves along the length direction of the rack through the engagement between the gear and the rack, and the slide bar moves along the length direction of the slide groove, so that the slide rack is convenient to move from the feeding area to the cleaning area, from the cleaning area to the discharging area and from the discharging area to the feeding area.

Optionally, both ends on the lateral wall that the ground was kept away from to the carriage are connected with the riding block, the riding block is kept away from and is provided with the bracket on the lateral wall of carriage, put and be connected with the lift on the pipe support and hold in the palm the group, the lift holds in the palm the group along the length direction who puts the pipe support and is provided with a plurality of, the lift holds in the palm the group and is located between the riding block, the lift holds in the palm the group and includes the support frame, also be connected with the riding block on the support frame, the riding block is along vertical direction sliding connection on the support frame.

Through adopting above-mentioned technical scheme, place the tubular product earlier on the support frame, the lateral wall butt of tubular product and bracket then makes the support frame remove towards ground for the tubular product slowly falls on the support block on the frame that slides, compares on directly placing the support block on the frame that slides with the tubular product, and when the tubular product moved towards the frame that slides, the support block on the support frame rose through the support frame and accepted the tubular product, on making the tubular product slowly fall on the frame that slides, reduced the tubular product with slide on the frame the butt to the impact force of tubular product, improved the stability of tubular product.

Optionally, the pipe rack is connected with a positioning assembly, the positioning assembly is opposite to the cleaning area, and the positioning assembly is used for fixing the pipe on the sliding rack.

Through adopting above-mentioned technical scheme, fix tubular product through locating component to stability when clean has been improved tubular product.

Optionally, the locating component is located between pipe cover and the sliding frame, the locating component includes connecting rod and clamp plate, the connecting rod is connected on putting the pipe support, the connecting rod is connected with on the lateral wall towards the sliding frame and supports the pressure cylinder, the clamp plate is connected on the piston rod that supports the pressure cylinder, the clamp plate is provided with the indent towards on the lateral wall of sliding frame.

Through adopting above-mentioned technical scheme, after the carriage removed to the clean area, start the cylinder that supports for the briquetting supports and presses in tubular product top, thereby the stability of tubular product is improved to briquetting cooperation riding block with tubular product clamp.

Optionally, the sliding frame is provided with a plurality of, sliding frame is along vertical direction and supporter sliding connection.

Through adopting above-mentioned technical scheme, when tubular product is carrying out the washing, the idle sliding frame in unloading district can remove to unloading district, clean district, the below in material loading district and remove to the material loading district and carry out the material loading to tubular product abluent efficiency has been improved.

Optionally, the spout is provided with two, two the spout sets up on putting the lateral wall of pipe support along vertical direction, it is provided with two lift grooves on the pipe support to put, the lift groove sets up between two spouts and sets up the both ends at the spout along the length direction of spout, lift groove and spout intercommunication, it has the lifter to put to slide along vertical direction sliding connection through the lift groove on the pipe support, be provided with the opening relative with the spout on the lateral wall of lifter orientation spout, the slider is pegged graft the cooperation with the opening, works as the slider is located the material loading district, the slider on the slider is located the opening on the lifter that is close to the material loading district, works as the slider is located the unloading district, the slider on the slider is located the opening on the lifter that is close to the unloading district.

Through adopting above-mentioned technical scheme, the idle sliding frame after the unloading can remove to the position relative with the spout that is close to ground setting through the lifter, then through the spout that is close to ground setting, the draw runner removes to in the opening on the lifter that is close to the material loading district, and remove to the position relative of the spout that is kept away from ground setting through the lifter, thereby be convenient for slide the sliding frame, be convenient for when tubular product cleans, the unloading, the idle pipe frame of putting can remove to the material loading district and carry out the material loading simultaneously, thereby tubular product cleaning efficiency has been improved.

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

1. placing the pipe on a sliding frame, moving the sliding frame from a feeding area to a cleaning area, covering a pipe cover on the pipe, and blocking water splashed from between a cleaning brush and the inner wall of the pipe by the pipe cover when the inner wall of the pipe is cleaned, so that the pipe is conveniently cleaned;

2. starting a driving machine, rotating a gear, and moving the rack along the length direction of the rack through the engagement between the gear and the rack, wherein the sliding bar moves along the length direction of the sliding groove, so that the sliding frame is convenient to move from a feeding area to a cleaning area, from the cleaning area to a discharging area and from the discharging area to the feeding area;

3. the pipe is placed on the support frame firstly, the pipe is abutted with the side wall of the bracket, then the support frame moves towards the ground, the pipe slowly falls on the supporting block on the sliding frame, compared with the pipe which is placed on the supporting block on the sliding frame directly, when the pipe moves towards the sliding frame, the pipe is supported by rising through the supporting block on the support frame, the pipe slowly falls on the sliding frame, the impact force on the pipe when the pipe is abutted on the sliding frame is reduced, and the stability of the pipe is improved.

Drawings

FIG. 1 is a schematic view showing the overall structure of a pipe cleaning feeding device according to embodiment 1;

FIG. 2 is a schematic view for embodying the positional relationship between the platen and the tube housing in embodiment 1;

FIG. 3 is an enlarged view of portion A for showing the positional relationship between the slide bar and the slide groove in FIG. 2;

FIG. 4 is a schematic view showing the positional relationship between the chute and the lifting groove in embodiment 2;

fig. 5 is an enlarged view of a portion B for showing the positional relationship between the lifting block and the slide bar in fig. 4.

Reference numerals illustrate:

1. a tube cover; 2. placing a pipe support; 3. a sliding frame; 4. a gear; 5. a rack; 6. a chute; 7. a slide bar; 8. a driving machine; 9. a support block; 10. a bracket; 11. a support frame; 12. a ball screw; 13. a first motor; 14. a cylinder; 15. a vertical frame; 16. a halyard; 17. a driving wheel; 18. a guide wheel; 19. a cross beam; 20. a connecting rod; 21. a pressing cylinder; 22. a pressing plate; 23. pressing a groove; 24. a lifting groove; 25. a lifting block; 26. a notch; 27. a screw; 28. and a second motor.

Detailed Description

The embodiment of the application discloses a material feeding unit is used in tubular product cleanness.

Example 1

Referring to fig. 1 and 2, a pipe cleaning feeding device comprises a pipe cover 1, a pipe rack 2 and a feeding device. The middle part of the pipe rack 2 perpendicular to the length direction is a cleaning area, and the two sides of the cleaning area are respectively a feeding area and a discharging area along the length direction of the pipe rack 2.

Referring to fig. 2 and 3, the material feeding unit includes slide 3 and slip subassembly, the slip subassembly includes gear 4 and rack 5, gear 4 is provided with a plurality ofly, a plurality of gears 4 are perpendicular to the length direction setting of putting pipe support 2 and rotate and connect on putting pipe support 2, all coaxial coupling has the sprocket on the gear 4, a plurality of sprockets link together through the chain, it is provided with spout 6 to put the length direction of pipe support 2 perpendicular to on putting pipe support 2, the cross-section of spout 6 sets up to the dovetail, be connected with draw runner 7 on the slide 3, the cross-section of draw runner 7 sets up to the dovetail, draw runner 7 is located spout 6 and along the length direction sliding fit of putting pipe support 2 with spout 6, rack 5 is connected on the lateral wall of keeping away from draw runner 7 on slide 3, the interval between the adjacent gear 4 is less than the length of rack 5, rack 5 meshes with gear 4, be connected with the actuating machine 8 that is used for driving gear 4 on putting pipe support 2. The driving machine 8 is started, the gear 4 is rotated, the gear 5 moves along the length direction of the gear 4 and the gear 5 through the engagement between the gear 4 and the gear 5, and the sliding bar 7 moves along the length direction of the sliding groove 6, so that the sliding frame 3 is convenient to move from the feeding area to the cleaning area, from the cleaning area to the discharging area and from the discharging area to the feeding area.

Referring to fig. 1 and 2, two ends of a side wall of the sliding frame 3 far away from the ground are connected with supporting blocks 9, a supporting groove 10 is arranged on the side wall of the supporting block 9 far away from the sliding frame 3, and the cross section of the supporting groove 10 is arranged in a V shape. The lifting support group is connected to the pipe rack 2, the lifting support group is arranged in a plurality of positions along the length direction of the pipe rack 2, the lifting support group is located between the support blocks 9 and comprises a support frame 11, a ball screw 12 and a first motor 13 for driving a nut pair in the ball screw 12 to rotate, the screw pair in the ball screw 12 is arranged along the vertical direction, the support frame 11 is connected to the pipe rack 2 and located below the sliding groove 6, the nut pair in the ball screw 12 is connected to the support frame 11, an air cylinder 14 is connected to the support frame 11, the top of the screw in the ball screw 12 is also connected with the support blocks 9, and a piston rod of the air cylinder 14 is connected with the bottom of the support blocks 9.

Referring to fig. 1 and 2, the pipe rack 2 is connected with vertical frames 15 along two ends in the length direction thereof, pipe hoods 1 are connected between the vertical frames 15 through lifting assemblies, the pipe hoods 1 are slidably connected with the vertical frames 15 in the vertical direction, the pipe hoods 1 are located right above the cleaning area, the openings of the pipe hoods 1 are arranged towards the cleaning area, and the openings are also formed in the pipe hoods 1 along two ends in the length direction of the pipe rack 2. The lifting assembly comprises a lifting rope 16, a driving wheel 17 and a guide wheel 18, wherein one end, far away from the pipe placing frame 2, of the vertical frame 15 is connected with a cross beam 19, the driving wheel 17 and the guide wheel 18 are both rotationally connected to the cross beam 19, a driving source for rotating the driving wheel 17 is connected to the cross beam 19, the lifting rope 16 is wound on the driving wheel 17, one end of the lifting rope 16 is fixed with the driving wheel 17, and the other end of the lifting rope 16 bypasses the guide wheel 18 to be connected with the top of the pipe cover 1.

Referring to fig. 1 and 2, a positioning assembly is connected between the vertical frames 15, the positioning assembly is located between the pipe cover 1 and the pipe placing frame 2, the positioning assembly comprises a connecting rod 20 and a pressing plate 22, the connecting rod 20 is connected between the vertical frames 15, the side wall of the connecting rod 20, which faces the pipe placing frame 2, is connected with a pressing cylinder 21, the pressing plate 22 is connected to a piston rod of the pressing cylinder 21, the side wall of the pressing plate 22, which faces the pipe placing frame 2, is provided with a pressing groove 23, and the pressing groove 23 is in a V shape.

The implementation principle of embodiment 1 of the present application is:

the ball screw 12 is controlled by the first motor 13 to move the supporting frame 11, the supporting frame 11 moves to a position higher than the supporting block 9, the pipe is firstly placed on the supporting frame 11, then the supporting frame 11 moves towards the ground through the ball screw 12, the pipe slowly falls on the supporting block 9 on the sliding frame 3, compared with the supporting block 9 which directly places the pipe on the sliding frame 3, when the pipe moves towards the sliding frame 3, the pipe is supported by ascending through the supporting block 9 on the supporting frame 11, the pipe slowly falls on the sliding frame 3, the impact force on the pipe when the pipe is in butt joint with the sliding frame 3 is reduced, and the stability of the pipe is improved.

Starting a driving machine 8, moving the sliding frame 3 from a feeding area to a cleaning area, then starting a driving source, unreeling the lifting rope 16, enabling the pipe cover 1 to fall on the sliding frame 3 along the vertical direction, and starting a pressing cylinder 21, so that a pressing block is pressed above the pipe, and clamping the pipe by the pressing block matched with a supporting block 9, thereby improving the stability of the pipe. The pipe cover 1 is covered on the pipe, and when the inner wall of the pipe is cleaned, water splashed from between the cleaning brush and the inner wall of the pipe is blocked by the pipe cover 1, so that the pipe is conveniently cleaned.

Example 2

Referring to fig. 4 and 5, the sliding grooves 6 are provided with two sliding grooves 6, the two sliding grooves 6 are arranged on the side wall of the pipe placing frame 2 along the vertical direction, two lifting grooves 24 are arranged on the pipe placing frame 2, the lifting grooves 24 are arranged between the two sliding grooves 6 and are arranged at two ends of the sliding grooves 6 along the length direction of the sliding grooves 6, the lifting grooves 24 are communicated with the sliding grooves 6, lifting blocks 25 are slidably connected on the pipe placing frame 2 along the vertical direction through the lifting grooves 24, openings 26 opposite to the sliding grooves 6 are formed in the side wall, facing the sliding grooves 6, of the lifting blocks 25, and the sliding strips 7 are in plug-in fit with the openings 26. When the sliding frame 3 is positioned in the feeding area, the sliding strip 7 on the sliding frame 3 is positioned in the notch 26 on the lifting block 25 close to the feeding area; when the sliding frame 3 is positioned in the blanking area, the sliding strip 7 on the sliding frame 3 is positioned in the notch 26 on the lifting block 25 close to the blanking area.

Referring to fig. 4 and 5, a screw 27 is rotatably connected to the pipe rack 2, the screw 27 penetrates through a lifting block 25, the lifting block 25 is in threaded connection with the screw 27, a second motor 28 for rotating the screw 27 is connected to the pipe rack 2, a plurality of gears 4 are arranged on one side, away from each other, of each of two sliding grooves 6, the plurality of gears 4 are perpendicular to the length direction of the pipe rack 2, the gears 4 are rotatably connected to the pipe rack 2, in the embodiment, a plurality of sliding frames 3 are arranged, three sliding frames 3 are arranged, two racks 5 are connected to the sliding frames 3 along the vertical direction, the length direction of each rack 5 is perpendicular to the length direction of the pipe rack 2, and meshing teeth of the two racks 5 are away from each other; the initial positions of the three sliding frames 3 are respectively positioned in a feeding area, a discharging area and a cleaning area;

the sliding strip 7 of the sliding frame 3 with the initial position positioned in the feeding area is positioned in the opening 26 of the lifting block 25 close to the feeding area and is opposite to the sliding groove 6 arranged far away from the ground, and the sliding frame 3 is a first sliding frame;

the sliding strip 7 of the sliding frame 3 with the initial position positioned in the blanking area is positioned in the opening 26 of the lifting block 25 close to the blanking area and is opposite to the sliding groove 6 arranged far away from the ground, and the sliding frame 3 is a second sliding frame;

the sliding strip 7 on the sliding frame 3 with the initial position in the cleaning area is positioned in the sliding groove 6 arranged close to the ground, and the sliding frame 3 is a third sliding frame.

The implementation principle of embodiment 2 of the present application is:

the sliding frame 3 moves through the sliding fit of the sliding strip 7 and the sliding groove 6, when the gear 4 drives the rack 5 to enable the sliding strip 7 to move along the sliding groove 6 and move into the notch 26, the second motor 28 is started to rotate the screw 27, the lifting block 25 moves to a position opposite to the other sliding groove 6 along the lifting groove 24, and the sliding strip 7 enters the other sliding groove 6 through the fit of the gear 4 and the rack 5.

Placing a pipe on the first sliding frame, then moving the first sliding frame to a cleaning area for cleaning, simultaneously controlling two lifting blocks 25 to move towards a chute 6 close to the ground, moving the second sliding frame to a position opposite to the chute 6 close to the ground through the lifting blocks 25, moving the third sliding frame towards a feeding area, and enabling a sliding strip 7 to move into a notch 26 on the lifting block 25 close to the feeding area;

after the pipe on the first sliding frame is cleaned, the lifting block 25 close to the blanking area is controlled to move to a position opposite to the sliding groove 6 far away from the ground, then the gear 4 is rotated simultaneously, the first sliding frame moves to the blanking area and is inserted into the notch 26 on the lifting block 25 close to the blanking area, the second sliding frame moves to the cleaning area along the sliding groove 6 close to the ground, the lifting block 25 close to the feeding area moves to a position opposite to the sliding groove 6 far away from the ground, the pipe is placed on the third sliding frame, and the third sliding frame performs blanking while feeding, so that the cleaning efficiency of the pipe is improved.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (8)

1. The utility model provides a material feeding unit is used in tubular product cleanness, includes pipe cover (1), puts pipe support (2) and material feeding unit, its characterized in that: put on pipe support (2) perpendicular to its length direction middle part be the washing district, follow put the length direction of pipe support (2), the both sides in washing district are respectively material loading district and unloading district, pipe cover (1) are put on pipe support (2) along vertical direction sliding connection through lifting unit to be located washing district top, material feeding unit includes sliding frame (3) and is used for removing the sliding assembly of sliding frame (3), sliding frame (3) perpendicular to put the length direction sliding connection of pipe support (2) on putting pipe support (2).

2. The feeding device for cleaning a pipe according to claim 1, wherein: the lifting assembly comprises a lifting rope (16), a driving wheel (17) and a guide wheel (18), wherein the driving wheel (17) and the guide wheel (18) are both rotationally connected to the top of the pipe placing frame (2), a driving source for rotating the driving wheel (17) is connected to the pipe placing frame (2), the lifting rope (16) is wound on the driving wheel (17), one end of the lifting rope (16) is fixed to the driving wheel (17), and the other end of the lifting rope bypasses the guide wheel (18) to be connected with the top of the pipe cover (1).

3. The feeding device for cleaning a pipe according to claim 1, wherein: the sliding assembly comprises a plurality of gears (4) and racks (5), wherein the gears (4) are arranged, the gears (4) are perpendicular to the length direction of the pipe rack (2) and are rotatably connected to the pipe rack (2), a sliding groove (6) is arranged on the pipe rack (2) perpendicular to the length direction of the pipe rack (2), a sliding strip (7) is connected to the sliding rack (3), the sliding strip (7) is positioned in the sliding groove (6) and is in sliding fit with the sliding groove (6) along the length direction of the pipe rack (2), the racks (5) are connected to the side wall, away from the sliding strip (7), of the sliding rack (3), the racks (5) are meshed with the gears (4), and a machine (8) for driving the gears (4) is connected to the pipe rack (2).

4. The feeding device for cleaning a pipe according to claim 1, wherein: the utility model discloses a support frame, including support frame (11), support frame (9) are connected with support block (9) on the lateral wall that slides on ground was kept away from to support block (3), be connected with on putting pipe support (2) and go up and down to hold in the palm the group, it is provided with a plurality ofly to go up and down to hold in the palm the group along the length direction that puts pipe support (2), it is located between support block (9) to go up and down to hold in the palm the group, it includes support frame (11) to go up and down to hold in the palm the group, also be connected with support block (9) on support frame (11), support block (9) are along vertical direction sliding connection on support frame (11).

5. The feeding device for cleaning a pipe according to claim 1, wherein: the pipe rack (2) is connected with a positioning assembly, the positioning assembly is opposite to the cleaning area, and the positioning assembly is used for fixing the pipe on the sliding frame (3).

6. The feeding device for cleaning pipes as set forth in claim 5, wherein: the positioning assembly is located between the pipe cover (1) and the sliding frame (3), the positioning assembly comprises a connecting rod (20) and a pressing plate (22), the connecting rod (20) is connected to the pipe placing frame (2), the connecting rod (20) is connected with a pressing cylinder (21) towards the side wall of the sliding frame (3), the pressing plate (22) is connected to a piston rod of the pressing cylinder (21), and the pressing plate (22) is provided with a pressing groove (23) towards the side wall of the sliding frame (3).

7. A pipe cleaning feed apparatus as defined in claim 3, wherein: the sliding frames (3) are arranged in a plurality, and the sliding frames (3) are connected with the storage rack in a sliding mode along the vertical direction.

8. The feeding device for cleaning pipes as set forth in claim 7, wherein: the utility model discloses a slide rack, including frame (2) and slide rack (3), spout (6) are provided with two, two spout (6) are provided with along vertical direction on the lateral wall of putting pipe rack (2), be provided with two lift groove (24) on putting pipe rack (2), lift groove (24) set up between two spouts (6) and set up the both ends at spout (6) along the length direction of spout (6), lift groove (24) and spout (6) intercommunication, be provided with lifting block (25) along vertical direction sliding connection on putting pipe rack (2) through lift groove (24), be provided with on the lateral wall of lifting block (25) orientation spout (6) with spout (6) relative opening (26), slider (7) are pegged graft the cooperation with opening (26), work as slide rack (3) are located in the material loading district, slider (7) on slide rack (3) are located in opening (26) on being close to the lifting block (25) of material loading district, work as slide rack (3) are located the material unloading district, slider (7) are located the material unloading district (25) on being close to the slider (25).

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