CN214086172U - Feeding mechanism of bearing double-end-face grinding machine - Google Patents

Abstract

The application relates to the field of bearing machining equipment, in particular to a feeding mechanism of a bearing double-end-face grinding machine, which comprises a storage tank, a conveying rail, a recovery channel and a material flowing channel, wherein the conveying rail is arranged at one end of the storage tank and is arranged in an upward inclined manner, the recovery channel is fixed on one side of the conveying rail, the material flowing channel is used for conveying a bearing ring, a partition plate is fixed between the conveying rail and the recovery channel, the conveying rail comprises a conveying crawler and a limiting plate, and a crawler plate which is abutted against the limiting plate is arranged on the conveying crawler; the track shoe is fixed with the spacing strip that the slope set up is said towards the material that flows, has seted up the punishment in advance hole on the limiting plate, has seted up the discharge opening with punishment in advance hole intercommunication on the baffle, and material that flows says one end and is provided with the feed inlet that is located the punishment in advance hole and supplies the bearing ring to get into. This application has the digestion speed who accelerates bearing ring in the conveyer trough, and when the conveyer trough held the bearing ring and reached the upper limit, unnecessary bearing ring can get into the conveyer trough again and treat the grinding, promotes the effect of the production efficiency of two end face grinding machines.

Description

Feeding mechanism of bearing double-end-face grinding machine

Technical Field

The application relates to the field of bearing processing equipment, in particular to a feeding mechanism of a bearing double-end-face grinding machine.

Background

The bearing is an important part in modern mechanical equipment, supports a mechanical rotating body, reduces the friction coefficient of the mechanical part during rotation, and ensures the rotation precision of the mechanical part. The bearing production flow comprises forging, annealing, turning, heat treatment, grinding and bearing assembly, wherein the grinding is a finished product processing step in the bearing ring processing flow, and manufacturers usually adopt a double-end-face grinding machine to grind the bearing ring so that the size precision and the shape precision of the bearing ring meet the design requirements. In the bearing ring machining process, a manufacturer transmits workpieces through a feeding mechanism, batch feeding is achieved, and bearing production efficiency is improved.

Chinese utility model patent publication No. CN207404459U discloses a bearing ring conveyor, including horizontal transport assembly, the vertical transport assembly who meets with horizontal transport assembly, vertical transport assembly includes vertical pipeline, stopping mechanism, thrust mechanism, vertical pipeline discharge gate, feed inlet, thrust mechanism is used for with the bearing ring by in the vertical pipeline of feed inlet push-in, stopping mechanism locates feed inlet department and is used for the bearing ring whereabouts that the restriction got into in the vertical pipeline. The feed inlet of the conveying pipeline is communicated with the feeding mechanism, and the bearing ring falls into the material box by means of gravity due to the inclined arrangement of the feeding mechanism.

In view of the above-mentioned related art, the inventor believes that when the bearing rings are loaded in batch, the bearing rings are arranged in the inclined conveying groove of the transverse conveying mechanism, the air cylinder of the thrust mechanism drives the push block to push the bearing rings into the vertical conveying pipeline one by one, and a plurality of bearing rings are stacked upwards in the vertical conveying pipeline until the bearing rings are conveyed to the upper end of the vertical conveying pipeline and are discharged from the discharge port. Because the bearing rings in the vertical conveying pipeline need to be loaded one by one, the bearing rings in the inclined conveying groove are slowly digested, the bearing rings to be ground are accumulated in the direction-changing mechanism, even the condition that the bearing rings overflow the direction-changing mechanism occurs, and the defect of reducing the production efficiency of the double-end-face grinding machine is overcome.

SUMMERY OF THE UTILITY MODEL

Can last material loading for bearing ring is grinding in batches for bearing ring's digestion speed in the conveyer trough, when the conveyer trough holds the bearing ring and reaches the upper limit, unnecessary bearing ring can get into the conveyer trough again and treat the grinding, promotes the production efficiency of two end face grinding machines, and this application provides a material loading mechanism of two end face grinding machines of bearing.

The application provides a pair of bearing double-ended grinding machine's feed mechanism adopts following technical scheme:

the utility model provides a feed mechanism of bearing double-ended grinding machine which characterized in that: the material recycling device comprises a storage tank, a conveying rail, a recycling channel and a material flowing channel, wherein the conveying rail is arranged at one end of the storage tank and is arranged in an upward inclined manner, the recycling channel is fixed on one side of the conveying rail, the material flowing channel is used for conveying a bearing ring, a partition plate is fixed between the conveying rail and the recycling channel, the conveying rail comprises a conveying crawler belt and a limiting plate, and a crawler plate which is abutted against the limiting plate is arranged on the conveying crawler belt;

the track shoe is fixed with the orientation the material of flowing is said and is said the spacing strip that the slope set up, the punishment in advance hole has been seted up on the limiting plate, set up on the baffle with the discharge opening of punishment in advance hole intercommunication, material of flowing is said one end and is provided with and is located the feed inlet that the punishment in advance hole just supplied the bearing ring to get into.

Through adopting above-mentioned technical scheme, the delivery track that the slope set up carries the bearing ring in with the storage pond to the punishment in advance hole, and in the continuous transportation process, the periphery side butt of bearing ring is on spacing strip up end and limiting plate are close to the terminal surface of spacing strip, and a terminal surface and the grip-pad looks butt of bearing ring, and the bearing ring is in the upright state of slope and upwards transmits. When the bearing ring reaches the material passing hole, the bearing ring rolls into the feed inlet of the material passage through the material passing hole along the obliquely arranged limiting strip under the action of gravity. When the conveying track carries more bearing rings and the material flowing channel is full of materials, the redundant bearing rings can enter the material recovering channel from the discharging hole and fall back to the material storage tank, the probability of blockage of the feeding hole is reduced, the maintenance frequency is reduced, and the feeding efficiency is improved.

Optionally, the conveying track is including being used for the installation the frame of conveying track, the rack-mount has the confession conveying track pivoted power motor, be fixed with first guard plate in the frame, the guard plate rotate connect in the one end of frame just is located the place ahead of conveying track.

Through adopting above-mentioned technical scheme, power motor drives and carries the track rotation, makes the bearing ring follow the conveying track upwards conveying in batches in the storage pond, improves material loading efficiency. The protection plate arranged above the conveying crawler can effectively protect the conveying crawler and the bearing ring in conveying.

Optionally, a roller is installed at one end of the conveying track, which is far away from the storage tank, bristles are arranged on the outer surface of the roller, and the bristles abut against the outer end face of the track shoe.

Through adopting above-mentioned technical scheme, when the bearing ring on the conveyor track is not unloaded completely and when reacing the cylinder position along with the conveyor track, the cylinder rotates, the brush hair that sets up at the cylinder surface brushes the bearing ring from the grip-pad down, make it fall back the stock chest through retrieving the material way, reduce the bearing ring and drop the condition outside conveyor track and retrieving the material way, avoid the operator to need to collect the bearing ring who drops again and put back the stock chest, and the production efficiency is improved, reduce the condition that the bearing dropped and lead to wearing and tearing outside, and the product quality is promoted.

Optionally, one end of the limiting strip, which is close to the partition plate, is set to be a round angle, one end of the limiting strip, which is close to the partition plate, is rotatably connected to a track shoe arranged on the conveying track through a pin shaft, one end of the limiting strip, which is far away from the partition plate, is provided with a first through hole for the penetration of an adjusting bolt, and the track shoe is provided with a plurality of second through holes for the threaded connection of the adjusting bolt.

By adopting the technical scheme, the inclination angle of the limiting strip can be adjusted, wherein one end of the limiting strip is set to be a round angle to play a role of abdicating, when the feeding speed of the bearing ring is high in production demand, the inclination degree of the limiting strip is increased, the adjusting bolt sequentially penetrates through the first through hole and the second through hole, so that the limiting strip is fixed on the track plate, the bearing ring which is upwards transmitted in an inclined upright state obtains more potential energy, and enters the material flowing channel at a higher rolling speed, and the feeding speed of the bearing ring is further increased; when the feeding speed of the bearing ring is low in production requirements, the inclination degree of the limiting strip is reduced, and the adjusting bolt sequentially penetrates through the first through hole and the second through hole, so that the limiting strip is fixed on the track plate, and the bearing ring relatively slowly enters the material flowing channel.

Optionally, the recycling channel comprises a base and a chute arranged on the upper end surface of the base, the upper end of the chute is communicated with the discharge hole, and the lower end of the chute is communicated with the storage tank.

Through adopting above-mentioned technical scheme, among the bearing ring transmission process, when the material is said fully to the class material, partial bearing ring falls into the recovery material way in following the discharge hole, along spout landing to the stock chest downwards, plays and retrieves unnecessary bearing ring fast and makes its effect that gets into the transport link again, reduces the bearing ring and piles up the condition that leads to the punishment in advance hole and block up at the punishment in advance hole.

Optionally, the base is provided with the second guard plate above the spout, second guard plate one side with the base rotates to be connected, the opposite side can dismantle connect in on the base.

Through adopting above-mentioned technical scheme, the second guard plate covers in the spout top, when bearing ring dropped or was brushed by the brush hair from the discharge opening, reduced the bearing ring and dropped outside the recovery material way and the condition of wearing and tearing, promoted product quality.

Optionally, the material flowing channel is provided with one end of the feed inlet and penetrates through the base and the chute to be located in the material passing hole, the material flowing channel comprises a vertical plate and a bottom plate, the vertical plate is arranged on two sides of the bottom plate respectively, and a conveying groove for conveying the bearing ring is formed between the vertical plate and the bottom plate.

By adopting the technical scheme, the bearing ring enters the material flowing channel one by one through the material passing hole formed in the partition plate and the material inlet, rolls along the conveying groove, and the conveying purpose is achieved.

Optionally, the riser is close to the one end of bottom plate is fixed with the pterygoid lamina, be provided with fastening bolt on the bottom plate, be provided with the confession on the pterygoid lamina the waist type hole that fastening bolt wore to establish.

Through adopting above-mentioned technical scheme, when the producer need the bearing ring of grinding unidimensional, unscrew tight set bolt, along waist type hole slip riser, adjust the width of conveyer trough in order to adapt to the size of bearing ring after, tighten tight set bolt again, make the riser fix on the bottom plate, improve feed mechanism suitability.

Optionally, the material flow channel is provided with a support frame, one end of the support frame is fixed on the lower end face of the bottom plate, and the other end of the support frame is fixed on one end of the base, which is far away from the partition plate.

By adopting the technical scheme, the situation that the bearing ring possibly collides with the material channel when the bearing ring enters the material recovery channel and the material channel from the conveying crawler belt and the material channel shakes during the operation process is reduced.

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

1. when the number of the bearing rings contained in the conveying groove reaches the upper limit, the redundant bearing rings can be recovered into the material storage pool, the situation that stockpiling and even material passing holes are blocked due to slow digestion of the bearing rings in the conveying groove is reduced, the feeding efficiency is improved, and the production efficiency of the double-end-face grinding machine is further improved;

2. the protective plates are arranged above the conveying track and the recovery channel, so that the situation that parts are blocked or damaged due to foreign matters entering the feeding mechanism is reduced, the situation that the bearing ring is separated from the recovery channel in the conveying process is reduced, and the probability that an operator needs to collect the dropped bearing ring is reduced;

3. the width of the conveying groove of the material flow channel can be adjusted, when a manufacturer needs to grind bearing rings with different sizes, the position of the vertical plate can be adjusted, the operation is simple, and the production efficiency is improved.

Drawings

Fig. 1 is a schematic structural diagram of a feeding mechanism of a bearing double-end-face grinding machine according to an embodiment of the application.

Fig. 2 is a schematic structural view of the conveying track.

Fig. 3 is a schematic structural view of the track shoe.

Fig. 4 is an exploded view of the track shoe.

Fig. 5 is a schematic structural view of the recovery flow path and the flow path.

Fig. 6 is a schematic structural view of the conveying rail and the reclaiming channel.

Fig. 7 is an enlarged view of a portion a in fig. 6.

Fig. 8 is a schematic structural view of another view of the reclaiming channel and the flow channel.

Fig. 9 is an exploded partial schematic view of the flow channel.

Description of reference numerals: 1. a material storage tank; 2. a conveying track; 3. a material recovery channel; 4. a material flow passage; 5. a partition plate; 6. a frame; 7. a power motor; 8. a conveying crawler belt; 9. a track shoe; 10. a first guard plate; 11. a limiting strip; 12. adjusting the bolt; 13. a pin shaft; 14. a first through hole; 15. a second through hole; 16. a support plate; 17. a support; 18. a drum; 19. brushing; 20. a base; 21. a second guard plate; 22. a limiting plate; 23. a material passing hole; 25. a discharge opening; 26. a hasp; 27. a chute; 28. mounting holes; 29. a feed inlet; 30. a discharge port; 31. a vertical plate; 32. a base plate; 33. a conveying trough; 34. a wing plate; 35. a kidney-shaped hole; 36. tightening the bolt; 37. a nut; 38. a support frame.

Detailed Description

The present application is described in further detail below with reference to figures 1-8.

Referring to fig. 1, a feeding mechanism of a bearing double-end-face grinding machine comprises a storage tank 1 placed on the ground, a conveying rail 2 communicated with the storage tank 1 and obliquely arranged, a recovery channel 3 communicated with the storage tank 1 and obliquely arranged on one side of the conveying rail 2, and a flow channel 4 penetrating through the recovery channel 3 and communicated with the conveying rail 2. The lower end of the conveying track 2 is communicated with the material storage tank 1, the upper end of the conveying track is communicated with the material recovery channel 3, and a large number of bearing rings are stored in the material storage tank 1 and are used for conveying the conveying track 2.

Referring to fig. 1 and 2, the conveying track 2 includes a frame 6, a power motor 7 fixed at one end of the frame 6 by bolts, two rotors and a conveying track 8, bearings are respectively penetrated at two ends of the frame 6, and the rotors are sleeved on the bearings and are in interference fit with the bearings. The output end of the power motor 7 drives the bearing to rotate through a gear, and then the rotor rotates in the horizontal direction. The conveying crawler belt 8 is sleeved on the two rotors, and the rotors horizontally rotate to drive the conveying crawler belt 8 to rotate. A plurality of track shoes 9 are bolted to the conveyor crawler 8. One end, far away from the material recovery channel 3, of the frame 6 is rotatably connected with a first protection plate 10 through a hinge, and the first protection plate 10 is located above the track shoe 9 to shield the track shoe 9 and play a role in protecting the track shoe 9.

Referring to fig. 2, 3 and 4, the limiting plate 22 abutted to the track shoe 9 is welded on the frame 6, the material passing hole 23 is formed in the limiting plate 22, the track shoe 9 is provided with a limiting strip 11 and an adjusting bolt 12, the limiting strip 11 is inclined towards the material flowing channel 4, the pin shaft 13 is arranged on the limiting strip 11 in a penetrating mode, one end of the pin shaft 13 is provided with a shaft cap, the end face, close to the limiting strip 11, of the shaft cap abuts against the upper end face of the limiting strip 11, and the pin shaft 13 is fixed with the track shoe 9 in a threaded connection mode. One end of the limiting strip 11, which is far away from the bolt, is provided with a first through hole 14 through which the adjusting bolt 12 passes. A plurality of second through holes 15 are formed in the track shoe 9, the second through holes 15 are circumferentially and uniformly distributed on the track shoe 9 by taking the pin shaft 13 as a circle center, the adjusting bolts 12 sequentially penetrate through the first through holes 14 and the second through holes 15, and the adjusting bolts 12 are respectively in threaded connection with the first through holes 14 and the second through holes 15. When the transmission speed of the bearing ring needs to be adjusted, the limiting strip 11 rotates by taking the bolt as a shaft, the inclination angle of the limiting strip 11 is changed, the adjusting bolt 12 sequentially penetrates through the first through hole 14 and the second through hole 15 and is screwed, and the adjusting bolt 12 is in threaded connection with the track shoe 9.

Referring to fig. 1 and 2, support plates 16 are welded on two sides of a conveying track 2 close to the upper end, a support 17 is fixed on the support plate 16 close to a limiting plate 22 through bolts, a motor-driven roller 18 is installed at the upper end of the conveying track 2, the motor is fixed on the support plate 16 far away from the limiting plate 22 through bolts, one end, far away from the limiting plate 22, of the roller 18 penetrates through the support 17, the inclination angle of the roller 18 is opposite to that of the limiting strip 11, bristles 19 abutted against a track shoe 9 are pasted on the outer peripheral side of the roller 18, when the bearing ring is clamped on the track shoe 9, the bristles 19 can brush down the bearing ring and enable the bearing ring to fall into a recycling material channel 3, the bristles 19 can also play a role in cleaning the track shoe 9, and the frequency of an operator in maintaining the conveying track 8 is reduced.

Referring to fig. 1, 5, 6 and 7, the recovery material way 3 includes that an organic whole sets up the base 20 in 1 one end of storage tank, and the one end that baffle 5 was kept away from to base 20 rotates and is connected with second guard plate 21, and the welding of recovery material way 3 is close to limiting plate 22 one side has baffle 5, has seted up discharge opening 25 on the baffle 5, and discharge opening 25 communicates with punishment in advance hole 23. The first protection plate 10 and the second protection plate 21 are fixedly connected by a buckle 26. The situation that the first protection plate 10 and the second protection plate 21 are opened due to bearing ring impact or motor vibration in the operation process of the feeding mechanism is reduced.

Referring to fig. 5, the upper end surface of the base 20 of the recovery material channel 3 is provided with a chute 27. One end of the chute 27 is communicated with the discharge hole 25, and the other end is communicated with the storage tank 1. The end face of the base 20 far away from the partition 5 is provided with a mounting hole 28 for the flow channel 4 to penetrate through, and the mounting hole 28 is provided with a margin for the flow channel 4 to adjust.

Referring to fig. 8 and 9, the material flow passage 4 includes a material inlet 29 and a material outlet 30, and the material inlet 29 is located in the material passing hole 23 after the material flow passage 4 passes through the base 20 and the sliding groove 27. The material channel 4 further comprises vertical plates 31 and a bottom plate 32, wherein the vertical plates 31 are arranged on two sides of the bottom plate 32, and the two vertical plates 31 are clamped and fixed on the bottom plate 32 to form a conveying groove 33 for the bearing ring to pass through. Two risers 31 of conveyer trough 33 are close to the pterygoid lamina 34 that two risers 31 directions of back extension are provided with to an organic whole respectively to the one end of bottom plate 32, waist type hole 35 of perpendicular to riser 31 has been seted up on the pterygoid lamina 34, be provided with tight set bolt 36 on the bottom plate 32, tight set bolt 36 wears to establish waist type hole 35 and bottom plate 32 in proper order, the pot head that tight set bolt 36 kept away from the nut is equipped with nut 37, when the producer needs the not unidimensional bearing ring of grinding, tight set bolt 36 and nut 37 of unscrewing, make two risers 31 slide and then keep away from or be close to each other along waist type hole 35, change the width of conveyer trough 33, and mounting hole 28 and discharge opening 25 all leave the surplus that supplies riser 31 to adjust, with the not unidimensional bearing ring of adaptation. When the vertical plate 31 is fixed, the nut 37 and the fastening bolt 36 are clamped in opposite directions, so that the upper end surface of the nut 37 abuts against the upper end surface of the bottom plate 32, and the lower end surface of the nut abuts against the upper end surface of the wing plate 34. The lower end surface of the bottom plate 32 abuts against the lower end surface of the inner wall of the material passing hole 23. The base 20 is provided with a mounting hole 28 for the material channel 4 to penetrate through, the upper and lower end faces of the inner wall of the mounting hole 28 are inclined planes, and the lower end face of the bottom plate 32 abuts against the lower end face of the inner wall of the mounting hole 28.

Referring to fig. 1, a supporting frame 38 is welded to one end of the base 20 away from the partition 5, and the other end of the supporting frame 38 is welded to the lower end face of the bottom plate 32. The situation that the material flow passage 4 shakes in the operation process is reduced, and the operation state of the material flow passage 4 is more stable.

The implementation principle of the feeding mechanism of the bearing double-end-face grinding machine in the embodiment of the application is as follows: the bearing rings are placed in the material storage tank 1 in batches, the conveying crawler 8 drives the crawler plate 9 to rotate upwards, and the bearing rings are conveyed continuously. The outer peripheral side of the bearing ring is abutted against the upper end face of the limiting strip 11 and the end face of the limiting plate 22 close to the limiting strip 11, one end face of the bearing ring is abutted against the track shoe 9, and the bearing ring is conveyed upwards in an inclined and vertical state. Because the limiting strips 11 are obliquely arranged towards the material flowing channel 4, the bearing ring rolls out of the limiting strips 11, enters the feeding hole 29 of the material flowing channel 4 through the material passing hole 23 formed in the limiting plate 22, passes through the material recovering channel 3, and enters the grinding machine through the material discharging hole 30 of the material flowing channel 4. When the conveying speed of the bearing ring on the material channel 4 is low, the bearing ring which cannot enter the material channel 4 enters the material recovery channel 3 from the discharge hole 25 formed in the partition plate 5 and is recovered to the material storage tank 1 along the chute 27.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (9)

1. The utility model provides a feed mechanism of bearing double-ended grinding machine which characterized in that: the device comprises a storage tank (1), a conveying track (2) which is arranged at one end of the storage tank (1) and is inclined upwards, a recovery material channel (3) fixed on one side of the conveying track (2), and a material flowing channel (4) for conveying a bearing ring, wherein a partition plate (5) is fixed between the conveying track (2) and the recovery material channel (3), the conveying track (2) comprises a conveying crawler belt (8) and a limiting plate (22), and a crawler plate (9) which is abutted against the limiting plate (22) is arranged on the conveying crawler belt (8);

track plate (9) are fixed with the orientation spacing strip (11) that flow material says (4) slope and sets up, punishment in advance hole (23) have been seted up on limiting plate (22), seted up on baffle (5) with discharge opening (25) of punishment in advance hole (23) intercommunication, flow material way (4) one end is provided with and is located in punishment in advance hole (23) and feed inlet (29) that supply the bearing ring to get into.

2. The loading mechanism of the bearing double-ended grinding machine according to claim 1, characterized in that: the conveying track (2) comprises a frame (6) used for installing the conveying track (8), the frame (6) is provided with a power motor (7) used for rotating the conveying track (8), a first protection plate (10) is fixed on the frame (6), and the protection plate is rotatably connected to one end of the frame (6) and located in front of the conveying track (8).

3. The loading mechanism of the bearing double-ended grinding machine as claimed in claim 2, characterized in that: a roller (18) is installed at one end, far away from the storage tank (1), of the conveying rail (2), bristles (19) are arranged on the outer surface of the roller (18), and the bristles (19) abut against the outer end face of the track shoe (9).

4. The loading mechanism of the bearing double-ended grinding machine according to claim 1, characterized in that: spacing (11) are close to the one end of baffle (5) sets up to the fillet, spacing (11) are close to the one end of baffle (5) through round pin axle (13) rotate connect in carry on crawler belt (8) the creeper tread (9) that set up, spacing (11) are kept away from the one end of baffle (5) is provided with first through-hole (14) that supply adjusting bolt (12) to wear to establish, creeper tread (9) are provided with a plurality of confessions adjusting bolt (12) threaded connection's second through-hole (15).

5. The loading mechanism of the bearing double-ended grinding machine according to claim 1, characterized in that: the recycling channel (3) comprises a base (20) and a chute (27) arranged on the upper end face of the base (20), the upper end of the chute (27) is communicated with the discharge hole (25), and the lower end of the chute is communicated with the storage tank (1).

6. The loading mechanism of the bearing double-ended grinding machine as claimed in claim 5, characterized in that: the base (20) is provided with second guard plate (21) above spout (27), second guard plate (21) one side with base (20) rotate to be connected, the opposite side can dismantle connect in on base (20).

7. The loading mechanism of the bearing double-ended grinding machine according to claim 1, characterized in that: flow material way (4) are provided with one end of feed inlet (29) and wear to establish and lie in behind base (20) and spout (27) material passing hole (23), flow material way (4) include riser (31) and bottom plate (32), riser (31) branch is located the both sides of bottom plate (32), riser (31) with form between bottom plate (32) and supply conveying trough (33) that the bearing ring carried.

8. The loading mechanism of the bearing double-ended grinding machine as claimed in claim 7, characterized in that: riser (31) are close to the one end of bottom plate (32) is fixed with pterygoid lamina (34), be provided with holding bolt (36) on bottom plate (32), be provided with the confession on pterygoid lamina (34) waist type hole (35) that holding bolt (36) wore to establish.

9. The loading mechanism of the bearing double-ended grinding machine as claimed in claim 8, characterized in that: the material flow channel (4) is provided with a support frame (38), one end of the support frame (38) is fixed on the lower end face of the bottom plate (32), and the other end of the support frame (38) is fixed on one end, far away from the partition plate (5), of the base (20).

Images