CN112158576B

CN112158576B - Mortar conveying device

Info

Publication number: CN112158576B
Application number: CN202010981784.6A
Authority: CN
Inventors: 邓川; 张�林; 刘作科
Original assignee: Chengdu Precision Concrete Co ltd
Current assignee: Chengdu Precision Concrete Co ltd
Priority date: 2020-09-17
Filing date: 2020-09-17
Publication date: 2022-03-22
Anticipated expiration: 2040-09-17
Also published as: CN112158576A

Abstract

The utility model relates to a mortar conveyor, which comprises a housin, the one end of casing is equipped with the feeder hopper, be provided with a plurality of discharge openings along self length direction uniform spacing on the outer wall of casing, can dismantle on the outer wall of casing and be provided with the apron that is used for the switching discharge opening, can dismantle on the outer wall of casing and be provided with out the hopper, the one end and the arbitrary discharge opening intercommunication of going out the hopper, the opening size that goes out the hopper both ends all is greater than the apron size, parallel arrangement has the back flow on the outer wall of casing, the one end and the feeder hopper intercommunication of back flow, the one end intercommunication that the feeder hopper was kept away from to the other end and casing. Through adjusting the position that the hopper is connected on the casing to and open the apron on the hopper corresponds position department discharge opening, thereby change conveyor ejection of compact position, and, the mortar that does not in time spill can continue to be carried to flow back into the feeder hopper from the back flow by screw conveyer, can not cause pressure too big and break to the shell, this application has improvement suitability, and moves stable effect.

Description

Mortar conveying device

Technical Field

The application relates to the field of building conveying devices, in particular to a mortar conveying device.

Background

The history of the conveyor is long, the ancient Chinese high-rotary-drum car and the water-lifting car turnover are rudimental shapes of a modern bucket elevator and a scraper conveyor, and the belt conveyor is a current main mode for conveying bulk materials, has easy change of direction and can flexibly change the conveying direction. The conveyer can be divided into the following operation modes: a loading and repairing integrated conveyor, a belt conveyor, a screw conveyor, a bucket elevator, a roller conveyor, a plate chain conveyor, a mesh belt conveyor and a chain conveyor.

Application publication number is CN 109129925A's patent discloses a mortar conveyer, including mixed conveyer main part, feeder hopper and quick-witted case, connecting pipe top fixed mounting has the feeder hopper, the inside fixed mounting of feeder hopper has the teeter chamber, the inside fixed mounting of mixed conveyer main part has pipeline, pipeline is close to quick-witted case one side fixed mounting and fills the bend down, fill the bend opposite side fixed mounting down and fill the bend, be equipped with the rotation axis in the pipeline, fixed mounting has spiral stirring leaf on the rotation axis, one side fixed mounting that the quick-witted case was kept away from to the rotation axis has fixed pedestal.

With respect to the related art among the above, there are the following drawbacks: because the feed hopper and the discharge gate on the conveyer are fixed in position, after the conveyer is fixed, the conveying distance of the conveyer is fixed, and when equipment changes, the conveyer is difficult to adjust.

Disclosure of Invention

Efficiency is adjusted in order to improve the conveyer discharge gate, this application provides a mortar conveyor.

The application provides a mortar conveyor adopts following technical scheme:

the utility model provides a mortar conveyor, includes the casing, the one end of casing is equipped with the feeder hopper, be equipped with the discharge opening on the outer wall of casing, the discharge opening is provided with a plurality ofly along the even interval of casing length direction, can dismantle on the outer wall of casing and be provided with the apron that is used for the switching discharge opening, apron and discharge opening one-to-one, can dismantle on the outer wall of casing and be provided with out the hopper, the one end and the arbitrary discharge opening intercommunication of play hopper, parallel arrangement has the back flow on the outer wall of casing, the one end and the feeder hopper intercommunication of feeder hopper, the one end intercommunication that the feeder hopper was kept away from to the other end and casing to the one end of back flow.

Through adopting above-mentioned technical scheme, when operating personnel adjusted the position of hopper on to the casing, untie the apron on the discharge opening of suitable position on the casing earlier, align the hopper again and install on the discharge opening of opening, accomplish the rigidity of hopper promptly, then, drop into the mortar from the feeder hopper, open screw conveyer on the casing, can carry the mortar, when the mortar is through the discharge gate that the hopper department was opened, the mortar spills, and the mortar that does not in time spill, continue to be carried to the casing by screw conveyer and keep away from the tip of feeder hopper after, in being extrudeed the backward flow and flow income feeder hopper from the back flow department, can not cause the pressure too big and break to the shell, the operation is stable, change conveyor ejection of compact position fast, the suitability is better.

Preferably, the inserting groove has been seted up on the inside wall of discharge opening, the mounting groove has been seted up on the lateral wall that corresponds with the inserting groove on the apron, it is provided with the inserted block to slide along self degree of depth direction in the mounting groove, be provided with the elastic component that is used for ordering about the inserted block and stretches out the mounting groove in the mounting groove, set up the handle hole that communicates with the inserting groove along inserting groove degree of depth direction on the outer wall of casing, it has the ejector pad to slide along self degree of depth direction in the inserting groove.

Through adopting above-mentioned technical scheme, operating personnel is when the installation apron, during the manual mounting groove on the apron lateral wall is gone into to the inserted block promotion on lapping, will lap the embedding discharge hole again, makes the inserted block align the inserting groove, under the elastic component effort, the inserted block is released the mounting groove and imbeds in the inserting groove, when dismantling the apron, need follow operation hole department and promote the ejector pad, makes the ejector pad promote in the inserted block income mounting groove, can make the apron freely fall out, easy dismounting.

Preferably, the edge of the insert block, which extends out of the end face of the mounting groove and is close to the inside of the housing, is provided with an inclined surface.

Through adopting above-mentioned technical scheme, when the installation apron, only need to lap embedding discharge opening, the inclined plane of inserted block and the edge contact of discharge opening to during the installation groove was accomodate to the side direction promotion inserted block, save the manual inserted block of pressing down of people, it is laborsaving convenient.

Preferably, go out hopper and casing bolted connection, the inserted bar has set firmly on the terminal surface that goes out the hopper and be close to the casing, inserted bar and handle hole adaptation, the terminal surface that goes out the hopper is kept away from to the inserted bar and is close to out hopper terminal surface open-ended edge and establish to the inclined plane, the opening size that goes out the hopper both ends all is greater than the apron size.

Through adopting above-mentioned technical scheme, when operating personnel took out the apron, align the play hopper on the casing, make the inserted bar on the play hopper align with the handle hole, will go out the hopper laminating again on the casing, make the inserted bar insert in the handle hole, bulldoze to the ejector pad side direction through the slope on the inserted bar to promote the ejector pad and withstand the ejector pad, open the apron, the apron falls out from going out the hopper, saves the apron and opens the operating procedure, laborsaving convenience.

Preferably, a stop lever used for limiting the cover plate to slide is vertically arranged on the outer wall of the discharge hopper in a penetrating mode, the stop lever extends into the discharge hopper, and the stop lever is close to one end, communicated with the discharge hole, of the discharge hopper.

Through adopting above-mentioned technical scheme, when operating personnel will go out the hopper bolt and screw up on the casing, open the apron, the apron after opening is blockked by the baffle, can not directly drop in going out the hopper installation, makes out hopper installation and apron tear open get go on in order, improves work efficiency.

Preferably, the one end that the casing was kept away from to the play hopper sets firmly towards the intraoral connecting plate of opening, the central line direction that is on a parallel with a play hopper on the face that the connecting plate is close to the casing has set firmly the guide bar, the otic placode has set firmly on the lateral wall of apron, set up the guiding hole with guide bar looks adaptation on the otic placode, the guide bar alternates in the guiding hole when going out the hopper and contacting with the casing.

Through adopting above-mentioned technical scheme, install the back on the casing at the play hopper, the guide bar is pegged graft on the otic placode on the apron, and the apron is deviate from the back from the discharge opening, along the exit of guide bar landing to a play hopper, and the concrete spills from the apron and the clearance that goes out between the hopper export, effectively avoids the apron to appear losing and falls convenient to use.

Preferably, the guide rod is sleeved with a buffer spring, and one end of the buffer spring is fixedly connected with the connecting plate.

Through adopting above-mentioned technical scheme, when the apron landing on the guide bar, the otic placode on the apron contacts with buffer spring, plays buffering and cushioning effect to the whereabouts impact force of apron, effectively reduces the impact noise when apron landing to play hopper opening part.

Preferably, the inner side wall of the discharge hopper, which is close to the feed hopper, is provided with a flow channel along the length direction.

Through adopting above-mentioned technical scheme, when the mortar leaked the material from the play hopper, the runner on the play hopper of concrete follow flowed out fast, and the clearance size between increase play hopper opening and the apron improves and mixes concrete ejection of compact speed.

Preferably, one side of the discharge hopper, which is far away from the shell, is provided with a push rod in a sliding manner along the length direction of the guide rod, and a handle for driving the push rod to slide is arranged on the side wall of the discharge hopper.

Through adopting above-mentioned technical scheme, when operating personnel closed the apron, rotate the handle, order about the ejector pin and remove to going out the hopper, withstand the apron, with the apron top go into the discharge opening with the discharge opening seal can, save the staff and visit into and close the operation in the discharge hopper, laborsaving convenience.

Preferably, the handle is a crank rocker, a rack is fixedly arranged on the ejector rod along the length direction of the handle, one end of the handle penetrates through the outer side wall of the discharge hopper and is rotatably arranged on the outer side wall of the discharge hopper, a gear is fixedly connected to one end of the handle penetrating into the discharge hopper in a coaxial mode, and the gear is meshed with the rack.

Through adopting above-mentioned technical scheme, when operating personnel operating handle promoted the apron and seal the discharge opening, rotate the crank rocker, through gear and the rack intermeshing on the ejector pin on the crank rocker to promote the ejector pin and remove, and the crank rocker increases distance between manual operation portion and the gear axis, make the handle laborsaving convenience when rotating.

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

1. the position of the discharge hopper connected to the shell is adjusted, and the cover plate on the discharge hole at the position corresponding to the discharge hopper is opened, so that the discharge position of the conveying device is changed, the applicability is improved, and mortar which does not leak in time can be continuously conveyed to flow back into the feed hopper from the return pipe by the screw conveyor, so that the shell cannot be broken due to overlarge pressure, and the operation is stable;

2. when an operator detaches the cover plate, the discharging hopper is aligned on the shell, the insertion rod on the discharging hopper is aligned with the operation hole, then the discharging hopper is attached to the shell, the insertion rod is inserted into the operation hole, the pushing block is pushed and pressed laterally through the inclined surface on the insertion rod, so that the pushing block is pushed to abut against the insertion block, the cover plate is opened, the cover plate falls out of the discharging hopper, the cover plate opening operation step is saved, and the labor is saved and the convenience is realized;

3. when operating personnel closed the apron, rotate the handle, order about the ejector pin and remove to going out the hopper, withstand the apron, push into the discharge opening with the apron top with the discharge opening seal can, save the staff and visit out and close the operation in the hopper, laborsaving convenience.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a partial sectional structural schematic diagram of the discharge hopper, the cover plate and the housing according to the embodiment of the application.

Fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.

Fig. 4 is a schematic overall structure diagram of another view angle according to the embodiment of the present application.

Fig. 5 is a partially enlarged schematic view of a portion B in fig. 4.

Description of reference numerals: 1. a housing; 11. a feed hopper; 12. a return pipe; 2. a discharge hole; 21. inserting grooves; 22. an operation hole; 23. a push block; 3. a cover plate; 31. mounting grooves; 32. inserting a block; 33. an elastic member; 4. a discharge hopper; 41. inserting a rod; 42. a flow channel; 5. a stop lever; 6. a connecting plate; 61. a guide bar; 62. a guide hole; 63. a buffer spring; 64. an ear plate; 7. a top rod; 71. a handle; 72. a rack; 73. a gear.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses mortar conveyor. Referring to fig. 1, the device comprises a housing 1, wherein the housing 1 is in a long strip shape, and a cylindrical conveying channel is arranged in the housing 1. The lateral wall of 1 one end of casing is gone up bolt fixedly connected with feeder hopper 11,

feeder hopper

11 and 1 inside intercommunication of casing. The conveying channel is coaxially and rotatably provided with a rotating shaft, the rotating shaft is provided with a spiral blade, and the blade is in contact with the inner side wall of the conveying channel. One end of the shell 1 is fixedly provided with a driving motor, and an output shaft of the driving motor is coaxially and fixedly connected with the rotating shaft through a coupler.

Referring to fig. 1 and 2, on the outer wall of casing 1, the discharge opening 2 has been seted up on the outer wall that is located subtend one side of feeder hopper 11, delivery channel intercommunication in discharge opening 2 and casing 1, and discharge opening 2 is provided with a plurality ofly along the even interval of the length direction of casing 1, and in this embodiment, discharge opening 2 is equipped with four, and discharge opening 2 also can set up three or five to it needs for accurate to satisfy discharge opening 2 position control in the actual production.

Referring to fig. 2 and 3, a step is arranged on the edge of the discharge hole 2 close to the outer wall of the shell 1, a cover plate 3 matched with the step is connected in the step in a clamping mode, and the cover plate 3 is used for sealing the discharge hole 2. Rubber seal ring can bond on the step, increases 3 lids of apron and closes when the discharge opening 2, the leakproofness between apron 3 and the casing 1. In this embodiment, a horizontal installation groove 31 is formed on a side wall of the cover plate 3, an insertion block 32 is slidably installed in the installation groove 31, an elastic member 33 for driving the insertion block 32 to extend out of the installation groove 31 is disposed in the installation groove 31, the elastic member 33 may be a spring, one end of the spring is fixedly connected to the bottom wall of the installation groove 31, and the other end of the spring is fixedly connected to the insertion block 32. In other embodiments, the elastic member 33 may be an elastic steel sheet, one end of which is fixedly welded on the inner wall of the mounting groove 31, and the other end of which abuts against the insert block 32 for pushing the insert block 32 to extend out of the mounting groove 31.

Referring to fig. 2 and 3, the insert 32 extends out of the end surface of the mounting groove 31, and is located at an edge of the step close to the end surface when the cover plate 3 is mounted to the discharging hole 2, and is set as an inclined surface, so that when the cover plate 3 is mounted, the insert 32 is extruded into the mounting groove 31 through the edge of the discharging hole 2. On the inside wall of discharge opening 2, on the inside wall that contacts with the lateral wall that has inserted block 32 on the apron 3, set up the inserting groove 21 that corresponds with inserted block 32 position, inserted block 32 can stretch into inserting groove 21 under the effect of elastic component 33 elasticity, and is spacing to the position of apron 3. The inserted block 32 and the inserting groove 21 are arranged on the cover plate 3 and the discharge hole 2 and surround the circumference of the discharge hole 2, and a plurality of groups are arranged at even intervals.

Referring to fig. 2 and 3, in order to take out the cover plate 3 from the discharging hole 2, a pushing block 23 for pushing the insertion block 32 out of the insertion groove 21 is slidably installed in the insertion groove 21 along the depth direction thereof, an operation hole 22 communicating with the insertion groove 21 is formed in the outer wall of the housing 1 along the depth direction of the insertion groove 21, one end of the operation hole 22 is coplanar with the inner bottom wall of the insertion groove 21, and one end of the pushing block 23 away from the insertion block 32 is exposed.

Referring to fig. 2 and 3, a discharge hopper 4 is arranged at the opened discharge port outside the housing 1, and the discharge hopper 4 is connected with the housing 1 through a bolt. The two ends of the discharge hopper 4 are open, and the size of the discharge hopper is larger than that of the cover plate 3. On one side inside wall of hopper 4, runner 42 has been seted up along self length direction, and when hopper 4 was installed out, runner 42 should be located the inside wall that hopper 4 was close to feeder hopper 11 one side. In order to detach the cover plate 3 at the same time when the hopper 4 is attached, in the present embodiment, an insertion rod 41 is welded and fixed to an end surface of the hopper 4 that contacts the housing 1, and the insertion rod 41 corresponds to the position of the operation hole 22. The edge of the insertion rod 41, which is far away from the end surface of the discharge hopper 4 and close to the discharge port, is an inclined surface, when the insertion rod 41 is inserted into the operation hole 22, the inclined surface of the insertion rod contacts with the edge of the push block 23, which is far away from the insertion block 32, so that the push block 23 is pushed laterally to move, and the insertion block 32 is pushed into the installation hole.

Referring to fig. 4 and 5, in order to avoid the loss of the rear cover plate 3 after the discharge hole 2 is opened, a connecting plate 6 is welded on the inner wall of the discharge hopper 4, and a guide rod 61 is welded on the surface of the connecting plate 6, which is close to the shell 1. The guide rod 61 extends out from the opening of the discharging body close to the shell 1, the lug plate 64 is welded at the edge of the cover plate 3, the lug plate 64 is provided with a guide hole 62 matched with the guide rod 61, and when the discharging hopper 4 is connected and fixed on the shell 1, the guide rod 61 is inserted into the guide hole 62. The guiding holes 62 and the ear plates 64 are provided with several pairs, and in this embodiment, four pairs of guiding holes 62 and ear plates 64 are provided to keep the cover plate 3 sliding smoothly. The guide rod 61 is sleeved with a buffer spring 63, and one end of the buffer spring 63 is welded and fixed with the connecting plate 6 and used for buffering the falling impact force of the cover plate 3 when the cover plate 3 slides downwards from the guide rod 61.

Referring to fig. 4 and 5, in order to conveniently move the cover plate 3 to the discharge hole 2 in the discharge hopper 4 to seal the discharge hole 2, the discharge hopper 4 is internally provided with a push rod 7 in a sliding and penetrating manner and parallel to the guide rod 61. Connecting plates 6 for supporting four guide rods 61 in the discharge hopper 4 are mutually crossed, guide channels are arranged at the crossed parts of the connecting plates 6, and ejector rods 7 are arranged in the channels in a sliding and penetrating mode. The handle 71 is rotatably mounted on the side wall of the discharge hopper 4, the handle 71 is a crank rocker, and one end of the crank rocker is rotatably connected to the side wall of the discharge hopper 4 and penetrates into the discharge hopper 4. The one end that the crank rocker stretches into in the hopper 4 is coaxial to be cup jointed with gear 73, is equipped with rack 72 along self length direction on the outer wall of ejector pin 7, and gear 73 and rack 72 intermeshing. By rotating the handle 71, the push rod 7 is driven to coaxially slide in the discharge hopper 4, so that the cover plate 3 is pushed into the closed discharge hole 2.

In order to prevent the cover plate 3 from falling out of the discharge hopper 4 when the discharge hopper 4 is installed, a sliding hole is arranged on the side wall of the discharge hopper 4 in a penetrating way, and a stop lever 5 is installed in the sliding hole in a sliding way. The stop lever 5 extends into the discharge hopper 4, and when the discharge hopper 4 is installed on the shell 1, the stop lever 5 is horizontally arranged in front of the discharge hole 2 to prevent the cover plate 3 from sliding towards the discharge opening.

In other embodiments, the cover plate 3 and the housing 1 may be connected by bolts. When dismouting apron 3, all need earlier to pull down in proper order earlier with apron 3 upper bolt, install out hopper 4 again.

Referring to fig. 1 and 4, in order to prevent mortar from not completely leaking out of the discharge hole 2 when passing through the opened discharge hole 2 and accumulating at the rear portion of the casing 1 far from the feed hopper 11, a return pipe 12 is further provided in the casing 1. The return pipe 12 has one end communicating with the feed hopper 11 and the other end communicating with an end of the housing 1 remote from the feed hopper 11.

The implementation principle of the mortar conveying device in the embodiment of the application is as follows: when an operator adjusts the position of the discharging hopper 4 on the shell 1, the discharging hopper 4 is aligned and installed on the discharging hole 2 to be opened, the discharging hopper 4 is installed through a bolt, in the process of installing the discharging hopper 4, the push block 23 is pushed through the insertion rod 41 on the discharging hopper 4, and then the insertion block 32 on the cover plate 3 is pushed out from the insertion groove 21 on the shell 1, so that the cover plate 3 is unfastened, and the corresponding discharging hole 2 is opened. Then, mortar is fed from the hopper 11, and the screw conveyor on the housing 1 is opened to convey mortar. When mortar passes through the opened discharge hole at the discharge hopper 4, the mortar leaks, but the mortar which does not leak in time continues to be conveyed to the end part of the shell 1 far away from the feed hopper 11 by the screw conveyor, and is extruded and reflowed into the feed hopper 11 from the reflux pipe 12, so that the shell cannot be broken due to overlarge pressure, and the operation is stable. Through adjusting the installation of hopper 4 and discharge opening 2, opening the position, can change conveyor's ejection of compact position, the suitability is better.

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

1. The utility model provides a mortar conveyor, includes casing (1), the one end of casing (1) is equipped with feeder hopper (11), its characterized in that: the automatic discharging device is characterized in that a plurality of discharging holes (2) are formed in the outer wall of the shell (1), the discharging holes (2) are uniformly arranged along the length direction of the shell (1) at intervals, cover plates (3) used for opening and closing the discharging holes (2) are detachably arranged on the outer wall of the shell (1), the cover plates (3) correspond to the discharging holes (2) one by one, discharging hoppers (4) are detachably arranged on the outer wall of the shell (1), one ends of the discharging hoppers (4) are communicated with one of the discharging holes (2), the opening sizes of the two ends of each discharging hopper (4) are larger than the size of each cover plate (3), return pipes (12) are parallelly arranged on the outer wall of the shell (1), one ends of the return pipes (12) are communicated with the feeding hopper (11), and the other ends of the return pipes are communicated with one end, far away from the feeding hopper (11), of the shell (1); an inserting groove (21) is formed in the inner side wall of the discharging hole (2), a mounting groove (31) is formed in the side wall, corresponding to the inserting groove (21), of the cover plate (3), an inserting block (32) is arranged in the mounting groove (31) in a sliding mode along the depth direction of the inserting block, an elastic piece (33) used for driving the inserting block (32) to stretch out of the mounting groove (31) is arranged in the mounting groove (31), an operating hole (22) communicated with the inserting groove (21) is formed in the outer wall of the shell (1) along the depth direction of the inserting groove (21), and a pushing block (23) is arranged in the inserting groove (21) in a sliding mode along the depth direction of the inserting block; the edge of the insertion block (32) extending out of the end face of the mounting groove (31) and close to the interior of the shell (1) is provided with an inclined surface; go out hopper (4) and casing (1) bolted connection, it has set firmly inserted bar (41) to go out on hopper (4) is close to the terminal surface of casing (1), inserted bar (41) and handle hole (22) adaptation, the terminal surface that goes out hopper (4) and be close to hopper (4) terminal surface open-ended edge is kept away from to inserted bar (41) establishes to the inclined plane, the opening size that goes out hopper (4) both ends all is greater than the size of apron (3).

2. The mortar delivery device of claim 1, wherein: go out to wear to be equipped with perpendicularly on the outer wall of hopper (4) and be used for restricting gliding pin (5) of apron (3), pin (5) stretch into out hopper (4) in, pin (5) are located the one end that goes out hopper (4) and be close to discharge opening (2).

3. The mortar delivery device of claim 1, wherein: one end of the discharging hopper (4) far away from the shell (1) is fixedly provided with a connecting plate (6) facing the opening, the connecting plate (6) is close to the surface of the shell (1) and is fixedly provided with a guide rod (61) in the direction parallel to the central line of the discharging hopper (4), the side wall of the cover plate (3) is fixedly provided with an ear plate (64), the ear plate (64) is provided with a guide hole (62) matched with the guide rod (61), and the guide rod (61) penetrates into the guide hole (62) when the discharging hopper (4) is contacted with the shell (1).

4. A mortar delivery device according to claim 3, characterized in that: the guide rod (61) is sleeved with a buffer spring (63), and one end of the buffer spring (63) is fixedly connected with the connecting plate (6).

5. A mortar delivery device according to claim 3, characterized in that: a flow channel (42) is formed in the inner side wall, close to the feed hopper (11), of the discharge hopper (4) along the length direction of the discharge hopper.

6. A mortar delivery device according to claim 3, characterized in that: one side of the discharging hopper (4) far away from the shell (1) is provided with a mandril (7) in a sliding mode along the length direction of the guide rod (61), and a handle (71) used for driving the mandril (7) to slide is arranged on the side wall of the discharging hopper (4).

7. The mortar delivery device of claim 6, wherein: the handle (71) is a crank rocker, a rack (72) is fixedly arranged on the ejector rod (7) along the length direction of the ejector rod, one end of the handle (71) penetrates through and is rotatably arranged on the outer side wall of the discharge hopper (4), a gear (73) is fixedly connected to one end, penetrating into the discharge hopper (4), of the handle (71) in a coaxial mode, and the gear (73) is meshed with the rack (72).