阅读说明：本技术 一种化工生产用干粉间歇式定量投料设备 (Dry powder intermittent type formula ration feeding equipment for chemical production ) 是由 马驭 于 2020-12-17 设计创作，主要内容包括：本发明涉及投料设备技术领域,具体为一种化工生产用干粉间歇式定量投料设备,包括投料设备主体,所述投料设备主体包括投料筒,所述投料筒的一侧表面连接有伺服电机,所述伺服电机的一端表面连接有第一皮带轮,且第一皮带轮的一侧表面通过皮带连接有另一组所述第一皮带轮,所述第一皮带轮的一侧表面连接有清理机构,所述投料筒的一端表面连接有第一连接套,且第一连接套的一端表面连接有定量机构,所述第一连接套的另一端表面连接有间歇式下料机构,另一组所述第一皮带轮的一侧表面连接有第一传动杆。本发明其本身在进行定量下料时会存在下料误差,且该装置通过设置间歇式下料机构,可方便根据具体加工需求来进行间歇式下料。(The invention relates to the technical field of feeding equipment, in particular to intermittent quantitative feeding equipment for dry powder for chemical production, which comprises a feeding equipment main body, wherein the feeding equipment main body comprises a feeding cylinder, one side surface of the feeding cylinder is connected with a servo motor, one end surface of the servo motor is connected with a first belt pulley, one side surface of the first belt pulley is connected with another group of first belt pulleys through a belt, one side surface of the first belt pulley is connected with a cleaning mechanism, one end surface of the feeding cylinder is connected with a first connecting sleeve, one end surface of the first connecting sleeve is connected with a quantitative mechanism, the other end surface of the first connecting sleeve is connected with an intermittent blanking mechanism, and one side surface of the other group of first belt pulleys is connected with a first transmission rod. The invention has blanking error when quantitative blanking is carried out, and the device can conveniently carry out intermittent blanking according to specific processing requirements by arranging the intermittent blanking mechanism.)

1. The utility model provides a material equipment is thrown with intermittent type formula ration of dry powder to chemical production, is including throwing the material equipment main part, its characterized in that: the feeding equipment main body comprises a feeding cylinder (1), one side surface of the feeding cylinder (1) is connected with a servo motor (2), one end surface of the servo motor (2) is connected with a first belt pulley (3), one side surface of the first belt pulley (3) is connected with another group of first belt pulleys (3) through a belt, one side surface of the first belt pulley (3) is connected with a cleaning mechanism, one end surface of the feeding cylinder (1) is connected with a first connecting sleeve (4), one end surface of the first connecting sleeve (4) is connected with a quantifying mechanism, the other end surface of the first connecting sleeve (4) is connected with an intermittent blanking mechanism, one side surface of the other group of first belt pulleys (3) is connected with a first transmission rod (10), one side surface of the first transmission rod (10) is connected with a clutch mechanism, one end surface of the feeding cylinder (1) is connected with an intermittent feeding box (5), and one end surface of the intermittent feeding box (5) is connected with a discharge hole (6).

2. The intermittent quantitative dry powder feeding equipment for chemical production according to claim 1, characterized in that: the cleaning mechanism comprises a first fixing frame (14), an arc-shaped scraper (15), a first bearing column (16), a first stop lever (13), a hollow pipe (12) and a first spring (11), wherein one side surface of the first belt pulley (3) is connected with the first bearing column (16), the outer surface of one side of the first bearing column (16) is connected with the arc-shaped scraper (15), the outer surface of the first bearing column (16) is movably sleeved with the first fixing frame (14), the outer surface of the bottom end of the first fixing frame (14) is connected with the first spring (11), the outer surface of the first spring (11) is connected with the hollow pipe (12), and the outer surface of the bottom end of the charging barrel (1) is connected with the first stop lever (13).

3. The intermittent quantitative dry powder feeding equipment for chemical production according to claim 1, characterized in that: the quantitative mechanism comprises a second connecting sleeve (8), a second spring (17), a first top plate (18), a first connecting plate (19), a second retaining sleeve (30), an inner bushing (31), a first bushing (32) and a first threaded rod (33), wherein the first threaded rod (33) is connected inside the first connecting sleeve (4), the first bushing (32) is connected to the outer surface of one side of the first threaded rod (33), the inner bushing (31) is connected to the outer surface of the first bushing (32), the second retaining sleeve (30) is connected to the outer surface of one side of the inner bushing (31) in a sliding mode, the second spring (17) is connected inside the first bushing (32), the first top plate (18) is connected to the surface of one side of the second spring (17), and the first connecting plate (19) is connected to the surface of one side of the first top plate (18).

4. The intermittent quantitative dry powder feeding equipment for chemical production according to claim 1, characterized in that: the intermittent type formula unloading mechanism includes first link frame (7), first overlay (27), first accepting frame (28), head rod (29), first flange (9) and second transfer line (26), the inner wall of intermittent type formula feed box (5) is connected with first link frame (7), and the inner wall of first link frame (7) is connected with first overlay (27), the surface connection of one side of head plate (27) has first accepting frame (28), the surface hinge joint of one side of first accepting frame (28) has head rod (29), and the surface hinge joint of one side of head rod (29) is at the surface of head rod (9), a side surface of head rod (9) is connected with second transfer line (26).

5. The intermittent quantitative dry powder feeding equipment for chemical production according to claim 1, characterized in that: clutch mechanism includes first spigot joint cover (20), first kelly (21), first shifting block (22), second spigot joint cover (23), first holder (24) and first holder (25), a side surface of first transmission pole (10) is connected with first kelly (21), and a side surface of first kelly (21) has supported the second and has supported cover (23), the surface of second spigot joint cover (23) has cup jointed first spigot joint cover (20), the inner wall of first spigot joint cover (20) is connected with first shifting block (22), the surface of second spigot joint cover (23) is connected with first holder (24), a side surface of first holder (24) has supported first holder (25), the inner wall of first holder (25) is inserted and is equipped with second transmission pole (26).

6. The intermittent quantitative dry powder feeding equipment for chemical production according to claim 5, characterized in that: the shape structure of the first clamping rod (21) is hexagonal, and the outer surface of the first clamping rod (21) is clamped with the first transmission rod (10) in a sliding mode.

7. The intermittent quantitative dry powder feeding equipment for chemical production according to claim 4, characterized in that: the first covering plates (27) are provided with seven groups, and the outer surfaces of the seven groups of first covering plates (27) are connected to the inner wall of the first connecting frame (7) through bearings.

8. The intermittent quantitative dry powder feeding equipment for chemical production according to claim 3, characterized in that: the inner wall of the second retaining sleeve (30) is provided with a notch, and the inside of the second retaining sleeve (30) is connected with a first bushing (32) in a sliding manner.

9. The intermittent quantitative dry powder feeding equipment for chemical production according to claim 3, characterized in that: the first top plates (18) are provided with two groups, and the two groups of first top plates (18) are connected to the inner wall of the first lining (32) through second springs (17).

Technical Field

The invention relates to the technical field of feeding equipment, in particular to intermittent quantitative dry powder feeding equipment for chemical production.

Background

The feeder is a small mechanical device which is indispensable in the metallurgical production and consists of a conveying device, a main machine and a pick-and-place manipulator. The automatic feeding device has the advantages of low labor intensity, accurate feeding position and unified orientation of the upper plane and the lower plane, so that the product has small and uniform deformation, high yield, high production efficiency, high finished product quality and low economic cost.

As disclosed in publication No.: CN109511609A discloses a roll simple quantitative feeder relates to the cultured equipment field, concretely relates to roll simple quantitative feeder. The box conveying roller comprises a frame, a blanking mechanism, a roller feeding mechanism, a weighing device and a box conveying roller, wherein the blanking mechanism is arranged at the top of the frame; after the technical scheme is adopted, the invention has the advantages that the equipment for automatically carrying out the quantitative box dividing process of insects without manual control can reduce the manpower and material resources input in the feeding process of insects, improve the working efficiency, realize unmanned operation in a full-automatic control mode, overcome the defects of large amount of manual labor, poor working efficiency and the like in the prior art, but the prior partial quantitative feeding equipment generally controls the specific feeding amount by workers according to experience when feeding materials, but still generates some errors according to the working experience of the workers, thereby possibly causing the phenomenon that the quantitative feeding amount is not accurate enough, and the prior partial quantitative feeding equipment generally needs to directly open the valve plate of the discharge port to discharge materials when working, however, only continuous discharging can be performed in this way, and intermittent discharging cannot be performed according to requirements, so that intermittent quantitative feeding equipment for dry powder for chemical production is urgently needed to solve the problems.

Disclosure of Invention

The invention aims to provide intermittent quantitative feeding equipment for dry powder for chemical production, which aims to solve the problems that quantitative blanking of the existing partial quantitative feeding equipment in the background art has errors, and the existing partial quantitative feeding equipment cannot perform intermittent blanking according to required production specifications.

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

a dry powder intermittent quantitative feeding device for chemical production comprises a feeding device main body, wherein the feeding device main body comprises a feeding barrel, one side surface of the charging barrel is connected with a servo motor, one end surface of the servo motor is connected with a first belt pulley, one side surface of the first belt pulley is connected with the other group of the first belt pulley through a belt, one side surface of the first belt pulley is connected with a cleaning mechanism, one end surface of the charging barrel is connected with a first connecting sleeve, and one end surface of the first connecting sleeve is connected with a quantitative mechanism, the other end surface of the first connecting sleeve is connected with an intermittent blanking mechanism, one side surface of the other group of the first belt pulleys is connected with a first transmission rod, and one side surface of the first transmission rod is connected with a clutch mechanism, one end surface of the charging barrel is connected with an intermittent feeding box, and one end surface of the intermittent feeding box is connected with a discharging port.

Preferably, clearance mechanism includes first mount, arc scraper blade, first holding post, first pin, hollow tube and first spring, a side surface of first belt pulley is connected with first holding post, and a side surface of first holding post is connected with the arc scraper blade, first mount has been cup jointed in the surface activity of first holding post, the bottom surface of first mount is connected with first spring, the surface connection of first spring has the hollow tube, the bottom surface of throwing the feed cylinder is connected with first pin.

Preferably, the quantitative mechanism comprises a second connecting sleeve, a second spring, a first top plate, a first connecting plate, a second retaining sleeve, an inner bushing, a first bushing and a first threaded rod, the first threaded rod is connected inside the first connecting sleeve, the first bushing is connected to the outer surface of one side of the first threaded rod, the inner bushing is connected to the outer surface of the first bushing, the second retaining sleeve is connected to the outer surface of one side of the inner bushing in a sliding mode, the second spring is connected inside the first bushing, the first top plate is connected to the surface of one side of the second spring, and the first connecting plate is connected to the surface of one side of the first top plate.

Preferably, the intermittent blanking mechanism comprises a first connecting frame, a first covering plate, a first receiving frame, a first connecting rod, a first connecting disc and a second transmission rod, the inner wall of the intermittent feeding box is connected with the first connecting frame, the inner wall of the first connecting frame is connected with the first covering plate, the outer surface of one side of the first covering plate is connected with the first receiving frame, the outer surface of one side of the first receiving frame is hinged with the first connecting rod, the surface of one side of the first connecting rod is hinged with the outer surface of the first connecting disc, and the surface of one side of the first connecting disc is connected with the second transmission rod.

Preferably, clutching mechanism includes first spigot joint cover, first kelly, first shifting block, second spigot joint cover, first holder and first holder, a side surface of first transfer line is connected with first kelly, and a side surface butt of first kelly has the second spigot joint cover, the first spigot joint cover has been cup jointed to the surface of second spigot joint cover, the inner wall of first spigot joint cover is connected with first shifting block, the surface of second spigot joint cover is connected with first holder, a side surface butt of first holder has first holder, the inner wall of first holder is inserted and is equipped with the second transfer line.

Preferably, the shape structure of the first clamping rod is hexagonal, and the outer surface of the first clamping rod is slidably clamped with the first transmission rod.

Preferably, the first cover plates are provided with seven groups, and the outer surfaces of the seven groups of first cover plates are connected to the inner wall of the first connecting frame through bearings.

Preferably, the inner wall of the second retaining sleeve is provided with a notch, and the inside of the second retaining sleeve is slidably connected with the first bushing.

Preferably, the first top plate is provided with two groups, and the two groups of first top plates are connected to the inner wall of the first bushing through the second spring.

Compared with the prior art, the invention has the beneficial effects that: this dry powder intermittent type formula ration feeding mechanism for chemical production can have the unloading error when carrying out quantitative unloading itself, and the device can conveniently carry out intermittent type formula unloading according to concrete processing demand through setting up intermittent type formula unloading mechanism.

1. The device is provided with a quantitative feeding mechanism, dry powder raw materials accumulated on the surface of a first connecting plate can conveniently flow to the inside of a second retaining sleeve along a gap of the inner wall of the second retaining sleeve by the contraction of the first connecting plate, then the dry powder raw materials can fall under the action of gravity, so that the dry powder raw materials can conveniently fall to the inside of a first covering plate, when the quantitative feeding amount needs to be adjusted, the first connecting sleeve can be firstly manually held and manually rotated, and meanwhile, a first threaded rod can conveniently move in the first connecting sleeve by a threaded structure between the first connecting sleeve and the first threaded rod, so that the first threaded rod can conveniently push a first lining close to one side of a feeding cylinder to approach or accommodate one side of the first lining, so as to conveniently adjust the quantitative feeding capacity, and through the helicitic texture between first adapter sleeve and the first threaded rod, can effectively make and fix through screw thread frictional force between first adapter sleeve and the first threaded rod to can reduce the error of saying out the production when the unloading, increase the device and carry out the material precision of getting of ration unloading.

2. The device is provided with an intermittent blanking mechanism, when dry powder raw materials subjected to quantitative blanking start to fall onto the surface of a first covering plate, a first shifting block can be manually held at first, the first shifting block is pulled to one side of a first holding sleeve, the first shifting block pulls a first receiving sleeve to move to one side of a second transmission rod, the second receiving sleeve is clamped with a first clamping rod connected to the surface of the second transmission rod, then a first holding frame connected to the surface of the second receiving sleeve can be manually adjusted to be clamped with the first holding sleeve, so that the first holding frame and the first holding sleeve can be conveniently clamped and connected, transmission between the second transmission rod and the first transmission rod can be realized, then the second transmission rod can be manually operated to drive the first connecting disc to synchronously rotate, and the first connecting disc can conveniently drive a hinged first connecting rod to synchronously displace, the first connecting rod can be used for drawing the first bearing frame to move so as to conveniently enable the first bearing frame to draw the first covering plate to be unfolded or closed, the dry powder raw materials falling on the surface of the first covering plate can fall out through the gap between the first covering plates at the moment, the dry powder raw materials are discharged, and the intermittent blanking can be conveniently started to be carried out on the raw materials through the continuous closing between the first covering plates.

Drawings

FIG. 1 is a schematic front perspective view of the present invention;

FIG. 2 is a schematic perspective sectional elevation view of the structure of the present invention;

FIG. 3 is a perspective view of the first connecting frame and the second transmission rod of the present invention;

FIG. 4 is a perspective view of the first coupling sleeve and the first threaded rod of the present invention;

FIG. 5 is a schematic perspective sectional view of the first connecting frame and the second transmission rod according to the present invention;

FIG. 6 is a perspective view of the second and first drive rods of the present invention;

FIG. 7 is an exploded perspective view of the second drive link and the first drive link of the present invention;

FIG. 8 is a perspective view of the first coupling sleeve and first threaded rod of the present invention;

FIG. 9 is a perspective view of the first bushing and first linkage plate of the present invention;

fig. 10 is an exploded view of the first link plate and the second spring according to the present invention.

In the figure: 1. a charging barrel; 2. a servo motor; 3. a first pulley; 4. a first connecting sleeve; 5. a batch-type feed box; 6. a discharge port; 7. a first connection frame; 8. a second connecting sleeve; 9. a first splice tray; 10. a first drive lever; 11. a first spring; 12. a hollow tube; 13. a first bar; 14. a first fixing frame; 15. an arc-shaped scraper plate; 16. a first receiving column; 17. a second spring; 18. a first top plate; 19. a first connecting plate; 20. a first receiving sleeve; 21. a first clamping rod; 22. a first shifting block; 23. a second socket sleeve; 24. a first holder; 25. a first retaining sleeve; 26. a second transmission rod; 27. a first cover plate; 28. a first receiving frame; 29. a first connecting rod; 30. a second retaining sleeve; 31. an inner liner; 32. a first bushing; 33. a first threaded rod.

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. 1-10, an embodiment of the present invention is shown:

a dry powder intermittent quantitative feeding device for chemical production comprises a feeding device main body, the feeding device main body comprises a feeding cylinder 1, one side surface of the feeding cylinder 1 is connected with a servo motor 2, one end surface of the servo motor 2 is connected with a first belt pulley 3, and one side surface of the first belt pulley 3 is connected with another group of first belt pulleys 3 through a belt, one side surface of the first belt pulley 3 is connected with a cleaning mechanism, one end surface of the feeding cylinder 1 is connected with a first connecting sleeve 4, and one end surface of the first connecting sleeve 4 is connected with a quantitative mechanism, the other end surface of the first connecting sleeve 4 is connected with an intermittent blanking mechanism, one side surface of the other group of first belt pulleys 3 is connected with a first transmission rod 10, and one side surface of the first transmission rod 10 is connected with a clutch mechanism, one end surface of the charging barrel 1 is connected with an intermittent feeding box 5, and one end surface of the intermittent feeding box 5 is connected with a discharging port 6.

Further, clearance mechanism includes first mount 14, arc scraper 15, first support post 16, first pin 13, hollow tube 12 and first spring 11, a side surface of first belt pulley 3 is connected with first support post 16, and a side surface of first support post 16 is connected with arc scraper 15, first mount 14 has been cup jointed in the surface activity of first support post 16, the bottom surface of first mount 14 is connected with first spring 11, the surface of first spring 11 is connected with hollow tube 12, the bottom surface of throwing feed cylinder 1 is connected with first pin 13, can conveniently scrape through arc scraper 15 the dry powder raw materials that the inner wall of throwing feed cylinder 1 is stained with and attaches and fall.

Further, the quantitative mechanism includes second adapter sleeve 8, second spring 17, first roof 18, first connecting plate 19, second retaining collar 30, interior bush 31, first bush 32 and first threaded rod 33, the internal connection of first adapter sleeve 4 has first threaded rod 33, and one side surface of first threaded rod 33 is connected with first bush 32, the surface of first bush 32 is connected with interior bush 31, one side surface sliding connection of interior bush 31 has second retaining collar 30, the internal connection of first bush 32 has second spring 17, and one side surface of second spring 17 is connected with first roof 18, one side surface of first roof 18 is connected with first connecting plate 19, can make things convenient for the staff to carry out the ration to get the material to the dry powder raw materials through setting up quantitative mechanism.

Furthermore, the intermittent type formula unloading mechanism includes first carriage 7, first overlay 27, first accepting frame 28, first connecting rod 29, first link plate 9 and second transfer line 26, the inner wall of intermittent type formula feed box 5 is connected with first carriage 7, and the inner wall of first carriage 7 is connected with first overlay 27, one side surface of first overlay 27 is connected with first accepting frame 28, one side surface of first accepting frame 28 articulates there is first connecting rod 29, and one side surface of first connecting rod 29 articulates the surface at first link plate 9, one side surface of first link plate 9 is connected with second transfer line 26, through setting up intermittent type formula unloading mechanism, can make things convenient for the staff to throw the material demand of throwing of difference when throwing the dry powder raw materials.

Further, the clutch mechanism comprises a first bearing sleeve 20, a first clamping rod 21, a first shifting block 22, a second bearing sleeve 23, a first holding frame 24 and a first holding sleeve 25, one side surface of the first transmission rod 10 is connected with the first clamping rod 21, one side surface of the first clamping rod 21 abuts against the second bearing sleeve 23, the outer surface of the second bearing sleeve 23 is sleeved with the first bearing sleeve 20, the inner wall of the first bearing sleeve 20 is connected with the first shifting block 22, the outer surface of the second bearing sleeve 23 is connected with the first holding frame 24, one side surface of the first holding frame 24 abuts against the first holding sleeve 25, the inner wall of the first holding sleeve 25 is inserted with the second transmission rod 26, and transmission between the first transmission rod 10 and the second transmission rod 26 can be conveniently achieved by arranging the clutch mechanism.

Further, the shape structure of first kelly 21 is the hexagon, and the surface slip block of first kelly 21 has first transfer line 10, sets up the shape structure through with first kelly 21 into the hexagon, can effectively conveniently make and carry out the slip block connection between first kelly 21 and the first transfer line 10 to conveniently make and carry out effective transmission between first kelly 21 and the first transfer line 10.

Furthermore, the first covering plates 27 are provided with seven groups, the outer surfaces of the seven groups of first covering plates 27 are connected to the inner wall of the first connecting frame 7 through bearings, and the seven groups of first covering plates 27 are provided, so that the first covering plates 27 can be conveniently covered with each other, and the intermittent blanking of the dry powder raw materials can be conveniently carried out.

Further, the inner wall of the second holding sleeve 30 is provided with a notch, and the inside of the second holding sleeve 30 is slidably connected with the first bushing 32, so that the first bushing 32 can be conveniently guided by the notch formed in the inner wall of the second holding sleeve 30.

Further, first roof 18 is provided with two sets ofly, and two sets of first roofs 18 all connect the inner wall at first bush 32 through second spring 17, can conveniently jack up first connecting plate 19 through the spring action that is provided with two sets of first roofs 18 through second spring 17.

The working principle is as follows: when dry powder raw materials are required to be mixed and discharged, the materials can be firstly manually placed inside the charging barrel 1, then the servo motor 2 can be manually operated through an external power supply to start working, then the servo motor 2 can conveniently drive the first belt pulley 3 to rotate so as to conveniently enable the first belt pulley 3 to start driving the first bearing column 16 to rotate, at the moment, the first bearing column 16 can drive the arc-shaped scraper 15 to synchronously rotate so as to conveniently enable the arc-shaped scraper 15 to start scraping the inner wall of the charging barrel 1 so as to prevent the dry powder raw materials from being attached to the inner wall of the charging barrel 1, then the first bearing column 16 can drive the first spring 11 to rotate, so that the hollow pipe 12 connected to the surface of the first spring 11 can conveniently knock the first stop lever 13, and the dry powder raw materials attached to the inner wall of the charging barrel 1 can be conveniently knocked down through the vibration generated by knocking between the first stop lever 13 and the hollow pipe 12, so as to make the dry powder raw material drop into the second retaining sleeve 30 and drop the dry powder raw material gradually onto the surface of the first connecting plate 19, and the dry powder raw material will accumulate more and more on the surface of the first connecting plate 19, and make the weight of the dry powder raw material face the elastic stress of the second spring 17, so as to make the dry powder raw material press the first connecting plate 19 downwards, make the first connecting plate 19 start moving downwards, and make the first connecting plate 19 start to press the first top plate 18, so that the first top plate 18 can start to transmit the stress to the second spring 17, and make the second spring 17 start to present the accumulation force compression state, and the dry powder raw material accumulated on the surface of the first connecting plate 19 can start to flow into the second retaining sleeve 30 along the gap of the inner wall of the second retaining sleeve 30 by the contraction of the first connecting plate 19, and then the raw material can drop by gravity, in order to facilitate the falling of the dry powder raw material into the interior of the first cover plate 27, and when the quantitative blanking amount needs to be adjusted, the first coupling sleeve 4 can be first manually held, and the first coupling sleeve 4 can be manually rotated, while the first threaded rod 33 can be easily moved inside the first coupling sleeve 4 by the screw-type structure between the first coupling sleeve 4 and the first threaded rod 33, thereby facilitating the first threaded rod 33 to push the first bush 32 close to the side of the charging barrel 1 to the side of the first bush 32 for closing or storing, facilitating the quantitative capacity of the quantitative charging, and the first connecting sleeve 4 and the first threaded rod 33 can be effectively fixed through the thread friction force through the thread structure between the first connecting sleeve 4 and the first threaded rod 33, therefore, errors generated during blanking can be reduced, and the material taking precision of quantitative blanking of the device is increased.

When the dry powder material after quantitative blanking begins to fall onto the surface of the first cover plate 27, the first shifting block 22 can be manually held, the first shifting block 22 is pulled to one side of the first retaining sleeve 25, the first shifting block 22 pulls the first receiving sleeve 20 to move to one side of the second transmission rod 26, the second receiving sleeve 23 is clamped with the first clamping rod 21 connected to the surface of the second transmission rod 26, then the first retaining frame 24 connected to the surface of the second receiving sleeve 23 can be manually adjusted to be clamped with the first retaining sleeve 25, so that the first retaining frame 24 and the first retaining sleeve 25 can be conveniently clamped and connected, transmission can be carried out between the second transmission rod 26 and the first transmission rod 10, then the second transmission rod 26 can be manually operated to drive the first connecting disc 9 to synchronously rotate, and therefore the first connecting disc 9 can conveniently drive the first connecting rod 29 hinged to the surface thereof to synchronously displace, the first receiving frame 28 can be pulled by the first connecting rod 29 to move so that the first receiving frame 28 can pull the first covering plate 27 to open or close, so that the dry powder raw material falling on the surface of the first covering plate 27 can fall out through the gap between the first covering plates 27, the dry powder raw material can be discharged, and the intermittent blanking of the raw material can be started conveniently through the continuous closing between the first covering plates 27.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.