CN113998401A

CN113998401A - Sheet material conveying device capable of preventing material blockage

Info

Publication number: CN113998401A
Application number: CN202111425524.1A
Authority: CN
Inventors: 朱建楠
Original assignee: Anhui Nandu Huabo New Material Technology Co ltd; Anhui Huabo Renewable Resources Technology Co Ltd
Current assignee: Anhui Nandu Huabo New Material Technology Co ltd; Anhui Huabo Renewable Resources Technology Co Ltd
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-02-01

Abstract

The invention discloses a flaky material conveying device capable of preventing material blockage, which relates to the technical field of flaky material conveying and comprises a pipe body, a transmission case, a connecting through pipe and a belt, wherein the connecting through pipe is fixed on one side of the pipe body through a bolt and is communicated with the transmission case, the other end of the connecting through pipe is communicated with the pipe body, and a winding post is arranged in the pipe body; the combined rotary feeding of the rolling column and the spiral stirring column enables the flaky materials to move more actively in the rolling column, compared with the single feeding of the traditional rotary stirring column, the frequency of blocking the tube body by the flaky materials is greatly reduced, meanwhile, the rubber abutting block is arranged on the inner wall of the rolling column, the shape difference of the flaky materials is increased when the flaky materials move in the rolling column, and compared with the inner wall of a single arc tube body, the times of clamping the flaky materials with the threaded stirring column are further reduced.

Description

Sheet material conveying device capable of preventing material blockage

Technical Field

The invention relates to the technical field of flaky material conveying, in particular to a flaky material conveying device capable of preventing material blockage.

Background

The lead-acid battery mainly comprises lead, sulfuric acid, partial other metals and plastics, the average service life of the battery is three years, so a large amount of lead-acid batteries are scrapped every year, and the whole plastic shell and a plurality of electrode lead plates are crushed in the recovery process of the old lead-acid battery, so that the recovery and the transportation of the flaky plastic shell and the polar plate are facilitated;

the broken plastic shell and the pole plate piece are usually in a sheet shape, when the sheet materials are transported by adopting a conveying device, the sheet materials often block the conveying device, so that spiral blades or other parts in the conveying device are extruded and deformed, the sheet materials work for a long time, the damage to the conveying device caused by the sheet materials is higher, the cost for maintaining the device is improved, meanwhile, the conveying efficiency of the damaged conveying device to the sheet materials is greatly reduced, and as the surface of the waste lead-acid battery shell still carries partial harmful substances, when workers pour the materials into the conveying device, the materials are directly poured into the conveying device, dust is possibly blown up, and the blown-up dust harms the health of the workers;

to this end, we propose a sheet material conveying device preventing the material blockage.

Disclosure of Invention

The invention aims to: through the dust baffle of installation on the feeding case, play the initial velocity that reduces the material whereabouts, make the dust of raising in the material reduce, the part dust that produces during the stirring of crushing pole simultaneously receives the fender of dust baffle, can not raise from the feeding incasement, influence the staff blowing, stirring leaf on the spiral stirring post is by feed end to discharge end pitch crescent simultaneously, the distance between stirring leaf and the device inner wall reduces gradually, the interval is greater than the particle diameter of material all the time, make things convenient for the stirring leaf to discharge the slice material, roll up post and spiral stirring post combination formula rotatory pay-off at last, make the slice material move more flourishing in rolling up the post, compare with the independent pay-off of traditional rotatory stirring post, the frequency greatly reduced that the slice material blockked up the body.

In order to achieve the purpose, the invention provides the following technical scheme:

a sheet material conveying device capable of preventing material blockage comprises a pipe body, a transmission case, a connecting pipe and a belt, wherein the connecting pipe is fixed on one side of the pipe body through a bolt and is communicated with the transmission case, the other end of the connecting pipe is communicated with the pipe body, a winding column is installed in the pipe body, a limiting groove is uniformly formed in the side face of the winding column, balls are uniformly installed on the inner surface of the pipe body, one side of each ball is embedded in the limiting groove, a clamping groove is uniformly formed in one side of the inner wall of the winding column, a second fixed wheel is installed in the winding column and is fixedly connected with the inner wall of the winding column, and an anti-blocking mechanism is installed on one side, located on the second fixed wheel, of the winding column;

the anti-blocking mechanism comprises a threaded rod, a movable column, a lock column, a movable rod, an L-shaped sliding rod, a clamping block, a turntable, a channel, a through hole and a safety catch, one side of the rolling column is movably connected with the threaded rod through a bolt, a movable column is connected on the threaded rod in a sliding way, a turntable is arranged on the inner wall of the rolling column and on one side of the second fixed wheel, and is provided with a through hole on the turntable, the turntable is provided with channels uniformly and symmetrically outside the through hole, the channels are connected with L-shaped sliding rods in a sliding way, and one side of the L-shaped sliding rod is rotatably connected with a movable rod through a bearing, the other side of the L-shaped sliding rod is fixed with a clamping block through spot welding, one end of the movable rod is rotatably connected with the side wall of the movable column through a bearing, one end of the lock column is slidably connected with a safety bolt, and one end of the safety bolt is clamped with one end of the threaded rod.

Further, the one end inner wall of book post has spiral stirring post through bearing swing joint, and the one end that is located spiral stirring post runs through second tight pulley and through-hole respectively and is connected with the lock post through spot welding, stirring leaf on the spiral stirring post is increased gradually by feed end to discharge end pitch.

Further, the side of body has the feeding case through the bolt fastening, and is located the bottom and the body of feeding case and be linked together, one side of feeding case has first motor through the bolt fastening, one side of feeding case has the tooth box through the bolt fastening, and is located the both sides inner wall of tooth box and has the connecting axle through bearing swing joint, the cover is equipped with first gear on the connecting axle, one side inner wall of tooth box is connected with the second gear through bearing symmetry rotation, first gear and one the meshing of second gear is connected, the output of first motor runs through the lateral wall of tooth box and is fixed mutually with the one end of connecting axle through spot welding.

Furthermore, the both sides inner wall of feeding case is fixed with the ash blocking board through spot welding, and two the ash blocking board is located different horizontal planes, the both sides inner wall of feeding case has crushing pole through bearing symmetry swing joint, and the other end that is located crushing pole runs through one side of tooth box and corresponds with two second gears through spot welding.

Further, one side of transmission case is fixed with the second motor through the bolt, and the output that is located the second motor runs through one side of transmission case and through one side inner wall swing joint of bearing and transmission case, the both sides inner wall of transmission case has the main shaft through bearing swing joint, and is located the cover and is equipped with the second joint dish on the main shaft, the output cover that the second motor is located the transmission case is equipped with first joint dish, and is connected through the belt between first joint dish and the second joint dish.

Further, the one end of main shaft runs through one side of transmission case and extends to in the connecting tube, the main shaft is located the intraductal one end surface symmetry cover of connecting tube and is equipped with first tight pulley, the one end of main shaft runs through two respectively one side of first tight pulley and body is fixed mutually with the one end of threaded rod through spot welding.

Further, the discharge gate has been seted up to the one end of body, the scraper blade is installed to one side inner wall of body and the bottom that is located the discharge gate and feeds the case and corresponds, the internal surface of rolling up the post is through gluing evenly to be fixed with rubber and to support the piece, one side of rolling up the post just is located the discharge gate and corresponds to the bottom of feeding case and sets up jaggedly.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the feeding box, the dust baffle and the crushing rods are arranged on the feeding box, so that when workers discharge materials, the crushing rods can break up part of caked sheet materials, meanwhile, the two rotating crushing rods are opposite in direction, the sheet materials are subjected to a pressing action force during crushing, the materials are prevented from being blocked in the feeding box, when the crushing rods are crushed and the materials are placed in the feeding box, the dust baffle plays a role in reducing the initial falling speed of the materials, the raised dust in the materials is reduced, and meanwhile, part of dust generated during stirring of the crushing rods is resisted by the dust baffle, and cannot be raised from the feeding box to influence the discharging of the workers.

2. According to the spiral stirring device, the first fixed wheel and the second fixed wheel are arranged in the winding column, so that the spiral stirring column rotates more stably in the tube body, the pitch of the stirring blades on the spiral stirring column is gradually increased from the feeding end to the discharging end, the distance between the stirring blades and the inner wall of the device is gradually reduced, the distance is always larger than the particle size of a material, and the stirring blades are convenient to discharge flaky materials.

3. According to the invention, the rolling column and the spiral stirring column are combined to carry out rotary feeding, so that the flaky material moves more actively in the rolling column, compared with the traditional rotary stirring column for independent feeding, the frequency of blocking the pipe body by the flaky material is greatly reduced, meanwhile, the rubber abutting block is arranged on the inner wall of the rolling column, the shape difference of the flaky material moving in the rolling column is increased, and compared with the inner wall of a single arc pipe body, the frequency of clamping the flaky material with the threaded stirring column is further reduced.

Drawings

FIG. 1 is a schematic view of the overall structure of a sheet material conveying device for preventing material blockage according to the invention;

FIG. 2 is a front view of the overall structure of the device for conveying sheet materials to prevent material blockage according to the present invention;

FIG. 3 is a schematic sectional view of the whole sheet material conveying device for preventing material blockage according to the present invention;

FIG. 4 is a schematic view of the overall structure of the anti-blocking mechanism of the present invention;

FIG. 5 is a schematic view of the movement connection structure of the anti-blocking mechanism of the present invention;

FIG. 6 is a schematic view of the turntable structure of the present invention;

FIG. 7 is a schematic cross-sectional view of the first motor and gear box connection of the present invention;

fig. 8 is a schematic view of a connection structure of the pipe body and the scraper according to the present invention.

In the figure: 1. a pipe body; 2. a feeding box; 3. a dust blocking plate; 4. a first motor; 5. a gear box; 6. a connecting shaft; 7. a first gear; 8. a second gear; 9. a breaking bar; 10. a transmission case; 11. a second motor; 12. connecting a through pipe; 13. a first fixed wheel; 14. a first chuck plate; 15. a main shaft; 16. a second chuck plate; 17. a belt; 18. an anti-blocking mechanism; 181. a threaded rod; 182. a movable post; 183. a lock cylinder; 184. a movable rod; 185. an L-shaped sliding rod; 186. a clamping block; 187. a turntable; 188. a channel; 189. a through hole; 1810. a safety plug; 19. rolling the column; 20. a card slot; 21. a limiting groove; 22. a spiral stirring column; 23. a second fixed wheel; 24. a rubber supporting block; 25. a discharge port; 26. a squeegee; 27. and a ball.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, the present invention provides a technical solution:

example 1:

a flaky material conveying device for preventing material blockage is shown in figure 1, a feeding box 2 is installed on the device, a group of crushing rods 9 which rotate relatively are arranged in the feeding box 2, the effect of crushing and pressing plastics and polar plates is achieved, and meanwhile the device can also be applied to flaky material conveying in the fields of metallurgy, ore and the like;

in order to prevent the materials from being added into the feeding box 2 and being lifted by dust, two dust baffles 3 are arranged on the side wall of the feeding box 2, when the materials enter the crushing rod 9 along the dust baffles 3, part of dust is restrained in the top area of the crushing rod 9 by the dust baffles 3 positioned at the bottom, compared with the method of directly adding the materials onto the crushing rod 9, the dust lifted in the feeding box 2 is greatly reduced, the first motor 4 drives the connecting shaft 6 in the tooth box 5 to rotate, the first gear 7 on the connecting shaft 6 drives the two second gears 8 in the tooth box 5, so that the rotating directions of the two second gears 8 in the tooth box 5 are opposite, when the materials are retained on the two crushing rods 9, the rotation of the two crushing rods 9 in opposite directions plays a role in pressing down the materials, and the materials are prevented from being retained on the crushing rods 9 to cause material blockage;

be located one side of body 1 and install transmission case 10, install in the transmission case 10 and drive spiral stirring post 22 pivoted main shaft 15 simultaneously, when second motor 11 that is located transmission case 10 one side rotates, drive the first joint dish 14 that is located transmission case 10 and rotate, first joint dish 14 passes through the belt 17 with the second joint dish 16 on the main shaft 15 and is connected, the other end of main shaft 15 is located and connects siphunculus 12, and be located and install a set of first tight pulley 13 in connecting siphunculus 12, first tight pulley 13 is made for fixing bearing and forms, it is more stable when making main shaft 15 rotate, be located simultaneously and install second tight pulley 23 in rolling up post 19 equally, play the rotation of stable spiral stirring post 22.

Example 2:

as shown in fig. 5, the anti-blocking mechanism 18 does not work in the pipe body 1 in a normal state, the anti-blocking mechanism 18 can work only when the sheet blocks the rotation of the rotary stirring column, and meanwhile, when the anti-blocking mechanism 18 participates in the transmission of the whole device, the whole power consumption of the device can be improved, but compared with the situation that the sheet blocks the stirring blades on the spiral stirring column 22 to deform and the bearings and parts in the device to be worn, the loss caused by material blocking is far greater than the improvement of the power consumption of the device;

in an initial state, a safety bolt 1810 on the lock column 183 is clamped with the front end of the threaded rod 181, part of the threaded rod 181 is positioned in the lock column 183, when the main shaft 15 rotates to drive the threaded rod 181 to rotate, the threaded rod 181 directly drives the lock column 183 and the spiral stirring column 22 connected with the lock column 183 to rotate, at this time, only the spiral stirring column 22 in the pipe body 1 rotates, when a worker puts a flaky material into the feeding box 2, the flaky material enters the outer wall of the winding column 19 along the dust baffle 3 and the crushing column, the winding column 19 is provided with notches at the bottom of the feeding box 2 and at the discharge port 25, so that the material can enter the winding column 19, when the spiral stirring column 22 rotates in the winding column 19, the flaky material falling in the winding column 19 is pushed to the discharge port 25 at one side, meanwhile, the screw pitch of the stirring blade on the spiral stirring column 22 is gradually increased from the feeding end to the discharge end, and the distance between the threaded blade and the inner wall of the device is gradually decreased, the distance is always larger than the grain diameter of the material, so that the flaky material is conveniently discharged;

when the spiral stirring rod 22 is blocked by the flaky material, as shown in fig. 4, the rotation of the threaded rod 181 is blocked, the safety pin 1810 clamped at the front end of the threaded rod 181 is affected by the torque caused by the rotation of the threaded rod 181, the safety pin 1810 is ejected from the threaded rod 181, the threaded rod 181 rotates in the lock column 183 and pushes the movable column 182 on the threaded rod 181 inwards, because the movable column 182 is provided with the movable rod 184, one end of the movable rod 184 is connected with the L-shaped sliding rod 185 on the rotating disc 187, when the movable column 182 moves inwards, the movable rod 184 pushes the L-shaped rod to move upwards in the channel 188, so that the fixture 186 rancour on the L-shaped rod enters the fixture groove 20 on the winding column 19, when the threaded rod 181 completely enters the lock column 183, the fixture 186 at this time props one end of the winding column 19 for a certain distance, so that the inner diameter of the winding column 19 is increased, and the limiting groove 21 on the winding column 19 starts to abut against the ball 27 on the tube body 1, at the moment, the threaded rod 181 drives the lock rod to rotate, the lock rod is connected with the spiral stirring column 22 through a through hole 189 on the turntable 187, at the moment, the threaded rod 181 drives the whole winding column 19 to rotate in the tube body 1, the spiral stirring column 22 and the winding column 19 in the tube body 1 rotate together, in order to prevent a part of sheet materials from entering a gap between the tube body 1 and the winding column 19 when the feeding box 2 feeds materials, so that the winding column 19 is blocked by the scraper 26 to stop on the winding column 19 at the bottom of the feeding box 2 when the winding column 19 rotates to a position without a gap, and the sheet materials directly fall into the winding column 19 when the winding column 19 rotates to the position with the gap;

roll up rotatory pay-off of post 19 and spiral stirring post 22 combination formula for the slice material moves more flourishing in rolling up post 19, compare with the independent pay-off of traditional rotatory stirring post, the frequency greatly reduced of body 1 is blockked up to the slice material, install rubber on rolling up the inner wall of post 19 simultaneously and support piece 24, form differentiation increase when making the slice material move in rolling up post 19, compare with 1 inner wall of single circular arc body, the number of times of slice material joint screw thread stirring post further reduces.

The working process of the invention is as follows:

during specific operation, a worker puts a sheet material into the feeding box 2, simultaneously opens the first motor 4 positioned on one side of the feeding box 2, the sheet material enters the crushing rod 9 along the ash baffle 3, the first motor 4 drives the connecting shaft 6 in the tooth box 5 to rotate, and the first gear 7 on the connecting shaft 6 drives the two second gears 8 in the tooth box 5, so that the two second gears 8 in the tooth box 5 rotate in opposite directions;

at this time, the second motor 11 on the transmission box 10 starts to work to drive the first clamping disc 14 in the transmission box 10 to rotate, the first clamping disc 14 is connected with the second clamping disc 16 on the main shaft 15 through the belt 17, the main shaft 15 starts to rotate to drive the threaded rod 181 in the tube body 1 to rotate, as the safety bolt 1810 on the lock cylinder 183 is clamped with the front end of the threaded rod 181, and part of the threaded rod 181 is positioned in the lock cylinder 183, when the main shaft 15 rotates to drive the threaded rod 181 to rotate, the threaded rod 181 directly drives the lock cylinder 183 and the spiral stirring cylinder 22 connected with the lock cylinder 183 to rotate, at this time, only the spiral stirring cylinder 22 in the tube body 1 rotates, when the spiral stirring cylinder 22 is blocked by the flaky material, the safety bolt 1810 clamped at the front end of the threaded rod 181 is affected by the torque brought by the rotation of the threaded rod 181, the safety bolt 1810 pops out from the threaded rod 181, and at this time, the threaded rod 181 rotates in the lock cylinder 183, and pushes the movable post 182 of the threaded rod 181 inwards, because the movable post 182 is provided with the movable rod 184, one end of the movable rod 184 is connected with the L-shaped sliding rod 185 of the rotary disc 187, as the movable post 182 moves inwardly, the movable rod 184 pushes the L-shaped rod upwardly in the channel 188, causing the catch 186 rancour on the L-shaped rod to snap into the catch 20 on the spool 19, when the threaded rod 181 is fully inserted into the lock cylinder 183, the latch 186 now pushes the end of the spool 19 apart a distance, the inner diameter of the winding column 19 is increased, the limiting groove 21 on the winding column 19 is abutted to the ball 27 on the tube body 1, the threaded rod 181 drives the lock rod to rotate, the lock rod is connected with the spiral stirring column 22 through the through hole 189 on the turntable 187, the threaded rod 181 drives the whole winding column 19 to rotate in the tube body 1, the spiral stirring column 22 and the winding column 19 in the tube body 1 rotate together, and the blocked flaky materials are discharged from the discharge hole 25;

after the device work, the second motor 11 begins antiport, threaded rod 181 begins to back spin out from lock post 183, and the staff can open the pipe wall that is located body 1 rear end, whether install again on threaded rod 181 through the macroscopical observation safety catch 1810, this step of operation is for reducing the holistic consumption of device, and on the same staff also can not install safety catch 1810 on threaded rod 181, the device also can normally work, prevent simultaneously that stifled effect is better than original device.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a prevent slice material conveyor of putty, includes body (1), transmission case (10), connects siphunculus (12) and belt (17), one side of body (1) is fixed with through the bolt and is connected siphunculus (12), and connects siphunculus (12) and transmission case (10) and be linked together, the other end of connecting siphunculus (12) is linked together its characterized in that with body (1): the anti-blocking device is characterized in that a winding column (19) is installed in the tube body (1), a limiting groove (21) is uniformly formed in the side face of the winding column (19), balls (27) are uniformly installed on the inner surface of the tube body (1), one side of the ball (27) is embedded in the limiting groove (21), a clamping groove (20) is uniformly formed in one side of the inner wall of the winding column (19), a second fixed wheel (23) is installed in the winding column (19), the second fixed wheel (23) is fixedly connected with the inner wall of the winding column (19), and an anti-blocking mechanism (18) is installed on one side of the winding column (19) located on the second fixed wheel (23);

the anti-blocking mechanism (18) comprises a threaded rod (181), a movable column (182), a lock column (183), a movable rod (184), an L-shaped sliding rod (185), a clamping block (186), a rotary disc (187), a channel (188), a through hole (189) and a safety catch (1810), wherein the threaded rod (181) is movably connected to one side of the rolling column (19) through a bolt, the movable column (182) is slidably connected to the threaded rod (181), the rotary disc (187) is installed on one side of the inner wall of the rolling column (19) and located on the second fixed wheel (23), the through hole (189) is formed in the rotary disc (187), the channel (188) is uniformly and symmetrically formed in the outer side of the through hole (189) on the rotary disc (187), the L-shaped sliding rod (185) is slidably connected to the channel (188), and the movable rod (184) is rotatably connected to one side of the L-shaped sliding rod (185) through a bearing, a clamping block (186) is fixed to the other side of the L-shaped sliding rod (185) through spot welding, one end of the movable rod (184) is rotatably connected with the side wall of the movable column (182) through a bearing, one end of the lock column (183) is slidably connected with a safety plug (1810), and one end of the safety plug (1810) is clamped with one end of the threaded rod (181).

2. The apparatus for conveying a sheet material to prevent clogging according to claim 1, wherein: the one end inner wall of book post (19) has spiral stirring post (22) through bearing swing joint, and the one end that is located spiral stirring post (22) runs through second tight pulley (23) and through-hole (189) respectively and is connected with lock post (183) through spot welding, stirring leaf on spiral stirring post (22) is increased gradually by feed end to discharge end pitch.

3. The apparatus for conveying a sheet material to prevent clogging according to claim 1, wherein: the side of body (1) is through the bolt fastening has feeding case (2), and is located the bottom and body (1) of feeding case (2) and is linked together, one side of feeding case (2) is through the bolt fastening has first motor (4), one side of feeding case (2) is through the bolt fastening has tooth box (5), and is located the both sides inner wall of tooth box (5) and has connecting axle (6) through bearing swing joint, the cover is equipped with first gear (7) on connecting axle (6), one side inner wall of tooth box (5) is rotated through the bearing symmetry and is connected with second gear (8), first gear (7) and one second gear (8) meshing is connected, the output of first motor (4) runs through the lateral wall of tooth box (5) and is fixed mutually through the one end of spot welding with connecting axle (6).

4. The apparatus for conveying a sheet material to prevent clogging according to claim 3, wherein: the both sides inner wall of feeding case (2) is fixed with ash baffle (3) through spot welding, and two ash baffle (3) are located different horizontal planes, the both sides inner wall of feeding case (2) has crushing pole (9) through bearing symmetry swing joint, and the other end that is located crushing pole (9) runs through one side of tooth box (5) and corresponds with two second gears (8) through spot welding and be connected.

5. The apparatus for conveying a sheet material to prevent clogging according to claim 1, wherein: one side of transmission case (10) is fixed with second motor (11) through the bolt, and the output that is located second motor (11) runs through one side of transmission case (10) and one side inner wall swing joint through bearing and transmission case (10), the both sides inner wall of transmission case (10) has main shaft (15) through bearing swing joint, and is located main shaft (15) and goes up the cover and be equipped with second joint dish (16), second motor (11) lie in transmission case (10) ground output pot head and are equipped with first joint dish (14), and are connected through belt (17) between first joint dish (14) and second joint dish (16).

6. The apparatus for conveying a sheet material to prevent clogging according to claim 5, wherein: one end of main shaft (15) runs through one side of transmission case (10) and extends to in connecting siphunculus (12), main shaft (15) are located the symmetrical cover in one end surface of connecting siphunculus (12) and are equipped with first tight pulley (13), the one end of main shaft (15) runs through two respectively one side of first tight pulley (13) and body (1) is fixed mutually with the one end of threaded rod (181) through spot welding.

7. The apparatus for conveying a sheet material to prevent clogging according to claim 1, wherein: discharge gate (25) have been seted up to the one end of body (1), scraper blade (26) are installed to the bottom correspondence that the one side inner wall of body (1) just is located discharge gate (25) and feeding case (2), the internal surface of rolling up post (19) is evenly fixed with rubber through gluing and supports piece (24), the bottom correspondence that just is located discharge gate (25) and feeding case (2) of one side of rolling up post (19) is seted up jaggedly.