CN113198576B

CN113198576B - Hard fiber removing device for removing biofuel particles

Info

Publication number: CN113198576B
Application number: CN202110359746.1A
Authority: CN
Inventors: 宋杨洁
Original assignee: Hunan Zhuhai Tanshengyuan Biotechnology Co ltd
Current assignee: Hunan Zhuhai Tanshengyuan Biotechnology Co ltd
Priority date: 2021-04-01
Filing date: 2021-04-01
Publication date: 2023-01-17
Anticipated expiration: 2041-04-01
Also published as: CN113198576A

Abstract

The invention relates to the technical field of biofuel and discloses a hard fiber removing device for removing biofuel particles. The grinding device comprises a bottom plate, wherein the upper surface of the bottom plate is fixedly connected with a shell, the upper surface of the bottom plate is provided with a feeding mechanism, the upper surface of the bottom plate is fixedly connected with a partition plate, the inner wall of one side of the shell is provided with a grinding mechanism, the grinding mechanism comprises two second crushing rollers, the second crushing rollers are rotatably connected with the shell, the inner wall of one side of the shell is movably connected with two first crushing rollers, and the first crushing rollers are meshed with the second crushing rollers. According to the invention, hard impurities in the raw materials can be filtered and screened through the sliding plate, the utilization rate of the raw materials is improved, meanwhile, the raw materials in the lifting pipe can be brought into the device through the spiral piece, the convenience of the device is improved, the blanking pipe can be blocked through the cover plate, and the situation that the hard impurities in the first collecting box are too much and cannot be cleaned in time is avoided.

Description

A hard fiber remove device for following biofuel granule

Technical Field

The invention relates to the technical field of biofuel, in particular to a hard fiber removing device for removing biofuel particles.

Background

The biofuel is a new clean fuel capable of being directly combusted, which is prepared by burning biomass materials as fuels, wherein the biomass materials are mainly agricultural and forestry wastes, such as straw, sawdust, bagasse, rice chaff and the like.

In the manufacturing process of the biofuel, a large amount of biofuel powder and hard impurities exist, the existence of the hard impurities can affect the quality of the fuel particles, and therefore the hard impurities need to be screened out in advance, however, the hard fiber removing device on the market at present cannot carry out crushing screening before filtering the hard impurities, so that the utilization rate of the fuel is reduced, and therefore, the hard fiber removing device for removing the biofuel from the biofuel particles is provided.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a hard fiber removing device for removing biological fuel particles, which mainly aims to solve the problem that the hard fiber removing device cannot crush and screen hard impurities before filtering.

(II) technical scheme

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

a hard fiber removing device for removing biological fuel particles comprises a bottom plate, wherein a shell is fixedly connected to the upper surface of the bottom plate, a feeding mechanism is arranged on the upper surface of the bottom plate, a partition plate is fixedly connected to the upper surface of the bottom plate and is fixed to the shell, a grinding mechanism is arranged on the inner wall of one side of the shell and comprises two second crushing rollers, the second crushing rollers are rotatably connected to the shell, two first crushing rollers are movably connected to the inner wall of one side of the shell and are meshed with the first crushing rollers, a gear is fixedly connected to one end of each second crushing roller, a supporting plate is fixedly connected to the outer wall of one side of the shell, a double-shaft-extension asynchronous motor is fixedly connected to the upper surface of the supporting plate, and a second belt wheel is fixedly connected to one end of an output shaft of the double-shaft-extension asynchronous motor, the utility model discloses a portable electronic device, including shell, first band pulley, spout, connecting axle, connecting post, connecting rod, connecting disc, connecting plate, the one side outer wall swing joint of shell has first band pulley, and first band pulley is connected with the second band pulley transmission, one side inner wall swing joint of shell has the connecting axle, and the connecting axle passes shell and first band pulley fixed mutually, the one end fixedly connected with carousel of connecting axle, the spacing frame of one side fixedly connected with of carousel, the spout has all been seted up to the both sides of shell, and one side swing joint of spout has the slide, and the top swing joint of slide has the second connecting rod, the one end fixedly connected with spliced pole of second connecting rod, and the sliding connection of spliced pole and spacing frame, two small openings have been seted up to one side of slide, one side fixedly connected with rack of slide, and rack and gear mesh mutually, flitch under one side inner wall fixedly connected with of shell, and the baffle passes the slide and is fixed mutually with the flitch.

Furthermore, the feed mechanism includes lifting pipe, and lifting pipe passes through the bolt fastening at the upper surface of bottom plate, and lifting pipe and shell are fixed mutually, lifting pipe's top fixedly connected with step motor, step motor output shaft's one end passes lifting pipe and fixedly connected with pivot, one side fixedly connected with flight of pivot, lifting pipe's one side fixedly connected with inlet pipe, the one end fixedly connected with feeder hopper of inlet pipe.

On the basis of the scheme, a baffle is fixedly connected to one side of the partition plate, a vibrating plate is movably connected to the inner wall of one side of the shell, a first connecting rod is movably connected to the upper surface of the vibrating plate and fixed to the limiting frame, a fixing plate is fixedly connected to the inner wall of one side of the shell, a first spring is fixedly connected to the upper surface of the fixing plate, and the other end of the first spring is fixed to the vibrating plate.

As a further scheme of the invention, a feed opening is formed in one side of the shell, a feed pipe is fixedly connected to one side of the feed opening, a first connecting plate is fixedly connected to the outer wall of one side of the shell, and a first collecting box is arranged on the upper surface of the first connecting plate.

Furthermore, a plurality of anti-skidding lines are arranged on the upper surface of the vibrating plate and are uniformly distributed.

On the basis of the scheme, an observation port is formed in one side of the shell, and an observation window is fixedly connected in the observation port.

As a further scheme of the invention, the bottom of the shell is provided with a second collecting box, and one side of the second collecting box is fixedly connected with a handle.

Further, still include the apron, the apron rotates with the unloading pipe to be connected, one side swing joint of first connecting plate has a plurality of slide bars, the top fixedly connected with second connecting plate of slide bar, one side swing joint of slide bar has the second spring, and the second spring is located between second connecting plate and the first connecting plate, the equal fixedly connected with third connecting rod in both sides of second connecting plate, the equal swing joint in both sides of unloading pipe has the fourth connecting rod, and the one end swing joint of fourth connecting rod has the fifth connecting rod, and the fifth connecting rod rotates with the apron to be connected, the sliding sleeve has been cup jointed to one side of fourth connecting rod, and the sliding sleeve rotates with the third connecting rod to be connected.

(III) advantageous effects

Compared with the prior art, the invention provides a hard fiber removing device for removing biofuel particles, which has the following beneficial effects:

1. the cooperation through second crushing roller and slide is used, and first crushing roller rotates and to be rolled the raw materials, and the carousel drives the slide and slides in the spout, makes the hard impurity that the slide will remain on first crushing roller and second crushing roller strike off to can filter the screening to the hard impurity in the raw materials, improve the utilization ratio of raw materials.

2. Through the setting of installation flight in the pivot, step motor drives the epaxial flight rotation of commentaries on classics, makes the flight take the raw materials of tedge bottom to the top to inside entering into the device through the lower flitch, thereby make the device can automatic feeding, improved the convenience of device.

3. Through the setting of connecting the head rod on vibrating the board, the carousel rotates and makes the head rod drive the vibration board shake to make raw materials and the hard impurity on the vibration board can carry out the layering screening, improved the flexibility of device.

4. Through the cooperation use of third connecting rod and sliding sleeve, when hard impurity in the first box of collecting was collected when more, the first box of collecting was pressed and is moved the second connecting plate and make third connecting rod pulling sliding sleeve downstream to make fifth connecting rod pulling apron live down the unloading pipe blockage, avoid the hard impurity in the first box of collecting too much can not in time clear up, improved the practicality of device.

5. Through the setting that is equipped with the second in the shell and collects the box, the raw materials after the filtration fall to the second from the vibration board in collecting the box, make the second collect the box and collect the raw materials after the filtration to make things convenient for the staff to carry out centralized processing to the raw materials, saved staff's time.

Drawings

FIG. 1 is a schematic perspective view of an embodiment 1 of a device for removing hard fibers from biofuel particles according to the present invention;

FIG. 2 is a schematic cross-sectional view of an embodiment 1 of a device for removing hard fibers from biofuel particles in accordance with the present invention;

FIG. 3 is a schematic view of the feeding mechanism of an embodiment 1 of the apparatus for removing hard fibers from biofuel particles according to the present invention;

FIG. 4 is a schematic structural diagram of a grinding mechanism of an embodiment 1 of a device for removing hard fibers from biofuel particles according to the present invention;

FIG. 5 is a schematic structural diagram of a blanking mechanism of an embodiment 2 of a device for removing hard fibers from biofuel particles according to the present invention;

FIG. 6 is an enlarged schematic view of part A of an embodiment 2 of a device for removing hard fibers from biofuel particles according to the present invention.

In the figure: 1. a feed hopper; 2. lifting a riser; 3. a stepping motor; 4. an observation window; 5. a housing; 6. a first pulley; 7. a double-shaft extension asynchronous motor; 8. a second pulley; 9. a discharging pipe; 10. a first collection box; 11. a first connecting plate; 12. a second collection box; 13. a base plate; 14. a feed pipe; 15. a baffle plate; 16. a partition plate; 17. a blanking plate; 18. a slide plate; 19. a turntable; 20. a first connecting rod; 21. a first spring; 22. anti-skid lines; 23. a vibrating plate; 24. a spiral sheet; 25. a rotating shaft; 26. a leak hole; 27. a second connecting rod; 28. a chute; 29. a limiting frame; 30. connecting columns; 31. a first crushing roller; 32. a second crushing roller; 33. a rack; 34. a gear; 35. a third connecting rod; 36. a cover plate; 37. a slide bar; 38. a second connecting plate; 39. a second spring; 40. a fourth connecting rod; 41. a sliding sleeve; 42. and a fifth connecting 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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Example 1

Referring to fig. 1 to 4, a hard fiber removing apparatus for removing hard fiber from biofuel particles includes a base plate 13, a casing 5 is fixed to an upper surface of the base plate 13 by bolts, a feeding mechanism is provided to the upper surface of the base plate 13, a partition plate 16 is fixed to the upper surface of the base plate 13 by bolts, the partition plate 16 is fixed to the casing 5, a grinding mechanism is provided to an inner wall of one side of the casing 5, the grinding mechanism includes two second crushing rollers 32, the second crushing rollers 32 are rotatably connected to the casing 5, two first crushing rollers 31 are rotatably connected to an inner wall of one side of the casing 5, the first crushing rollers 31 are engaged with the second crushing rollers 32, a gear 34 is fixed to one end of the second crushing rollers 32 by bolts, a support plate is fixed to an outer wall of one side of the casing 5 by bolts, a biaxial-extension asynchronous motor 7 is fixed to an upper surface of the support plate by bolts, a second pulley 8 is fixed to one end of an output shaft of the biaxial-extension asynchronous motor 7 by bolts, the outer wall of one side of the shell 5 is rotationally connected with a first belt wheel 6, the first belt wheel 6 is in transmission connection with a second belt wheel 8, the inner wall of one side of the shell 5 is rotationally connected with a connecting shaft, the connecting shaft penetrates through the shell 5 and is fixed with the first belt wheel 6, one end of the connecting shaft is fixedly provided with a rotary disc 19 through a bolt, one side of the rotary disc 19 is fixedly provided with a limit frame 29 through a bolt, both sides of the shell 5 are provided with sliding grooves 28, one side of each sliding groove 28 is slidably connected with a sliding plate 18, the top of each sliding plate 18 is rotationally connected with a second connecting rod 27, the rotation of the double-shaft extension asynchronous motor 7 enables the second belt wheel 8 to drive the first belt wheel 6 to rotate, the first belt wheel 6 drives the rotary disc 19 to rotate, the rotary disc 19 enables the second connecting rod 27 on the limit frame 29 to drive the sliding plate 18 to slide on the sliding grooves 28, one end of the second connecting rod 27 is fixedly provided with a connecting column 30 through a bolt, and spliced pole 30 and spacing frame 29's sliding connection, two small opening 26 have been seted up to one side of slide 18, there is rack 33 one side of slide 18 through the bolt fastening, and rack 33 meshes with gear 34 mutually, slide 18 removes and makes rack 33 drive gear 34 rotate, thereby make second crushing roller 32 drive first crushing roller 31 rotate, there is lower plate 17 one side inner wall of shell 5 through the bolt fastening, and baffle 16 passes slide 18 and is fixed mutually with lower plate 17, first crushing roller 31 and second crushing roller 32 rotate and can roll the raw materials, carousel 19 drives slide 18 and slides in spout 28, make slide 18 will remain the hard impurity on first crushing roller 31 and second crushing roller 32 and strike off, thereby can filter the screening to the hard impurity in the raw materials.

It should be noted that the feeding mechanism includes a lifting pipe 2, the lifting pipe 2 is fixed on the upper surface of the bottom plate 13 by bolts, the lifting pipe 2 is fixed with the housing 5, the top of the lifting pipe 2 is fixed with a stepping motor 3 by bolts, one end of the output shaft of the stepping motor 3 passes through the lifting pipe 2 and is fixed with a rotating shaft 25 by bolts, one side of the rotating shaft 25 is fixed with a spiral piece 24 by bolts, one side of the lifting pipe 2 is fixed with a feeding pipe 14 by bolts, one end of the feeding pipe 14 is fixed with a feeding hopper 1 by bolts, the stepping motor 3 drives the spiral piece 24 on the rotating shaft 25 to rotate, so that the spiral piece 24 brings the raw material at the bottom of the lifting pipe 2 to the top and enters the device through a blanking plate 17, thereby the device can automatically feed, one side of the partition plate 16 is fixed with a baffle plate 15 by bolts, the inner wall of one side of the housing 5 is rotatably connected with a vibrating plate 23, the upper surface of the vibrating plate 23 is rotatably connected with a first connecting rod 20, the first connecting rod 20 is fixed with a limiting frame 29, the rotary table 19 rotates to enable the first connecting rod 20 to drive the vibrating plate 23 to shake, so that the raw materials and the hard impurities on the vibrating plate 23 can be screened in a layered manner, a fixing plate is fixed on the inner wall of one side of the shell 5 through a bolt, a first spring 21 is fixed on the upper surface of the fixing plate through a bolt, the other end of the first spring 21 is fixed with the vibrating plate 23, a discharging opening is formed in one side of the shell 5, a discharging pipe 9 is fixed on one side of the discharging opening through a bolt, a first connecting plate 11 is fixed on the outer wall of one side of the shell 5 through a bolt, a first collecting box 10 is arranged on the upper surface of the first connecting plate 11, the first collecting box 10 facilitates the centralized processing of the hard impurities by a worker, a plurality of anti-slip grains 22 are formed on the upper surface of the vibrating plate 23, and antiskid line 22 evenly distributed, the viewing aperture has been seted up to one side of shell 5, there is viewing window 4 through the bolt fastening in the viewing aperture, viewing window 4 makes things convenient for the staff to observe the device is inside, the bottom of shell 5 is equipped with the second and collects box 12, there is the handle one side of second collection box 12 through the bolt fastening, the raw materials after the filtration drop to the second from vibration board 23 in collecting box 12, make the second collect box 12 and collect the raw materials after the filtration, thereby make things convenient for the staff to carry out centralized processing to the raw materials.

The working principle of the embodiment is as follows: when hard impurities in raw materials need to be removed, firstly, the stepping motor 3 is started, the double-shaft extension asynchronous motor 7 is started, the raw materials are poured into the lifting pipe 2 through the feed hopper 1, the stepping motor 3 drives the spiral piece 24 on the rotating shaft 25 to rotate, so that the spiral piece 24 brings the raw materials in the lifting pipe 2 to the top, then the raw materials enter the second crushing roller 32 and the first crushing roller 31 through the blanking plate 17, meanwhile, the double-shaft extension asynchronous motor 7 rotates to enable the second belt wheel 8 to drive the first belt wheel 6 to rotate, the first belt wheel 6 drives the rotating disc 19 to rotate, the rotating disc 19 enables the second connecting rod 27 on the limiting frame 29 to drive the sliding plate 18 to slide on the sliding groove 28, so that the sliding plate 18 scrapes off the hard impurities in the raw materials, and the hard impurities fall on the vibrating plate 23, meanwhile, the sliding plate 18 moves to make the rack 33 drive the gear 34 to rotate, so that the second crushing roller 32 drives the first crushing roller 31 to rotate, further the second crushing roller 32 drives the first crushing roller 31 to crush the raw material, then the crushed raw material falls onto the baffle 15 and then falls onto the vibrating plate 23 from the baffle 15, meanwhile, when the rotating disk 19 rotates, the first connecting rod 20 drives the vibrating plate 23 to shake up and down, the first spring 21 stretches, so that the vibrating plate 23 carries out layered screening on the crushed raw material and hard impurities, larger hard impurities are located above the crushed raw material, then the hard impurities enter the blanking pipe 9 through the blanking port and fall into the first collecting box 10 to be collected, and meanwhile, the crushed raw material falls into the second collecting box 12 to be collected.

Example 2

Referring to fig. 5-6, a hard fiber removing device for removing bio-fuel particles, further comprising a cover plate 36, the cover plate 36 is rotatably connected to a discharging pipe 9, one side of a first connecting plate 11 is slidably connected to a plurality of sliding rods 37, the tops of the sliding rods 37 are fixed to a second connecting plate 38 through bolts, one side of each sliding rod 37 is sleeved with a second spring 39, the second springs 39 are located between the second connecting plate 38 and the first connecting plate 11, two sides of the second connecting plate 38 are both fixed to third connecting rods 35 through bolts, two sides of the discharging pipe 9 are both rotatably connected to a fourth connecting rod 40, one end of the fourth connecting rod 40 is rotatably connected to a fifth connecting rod 42, the fifth connecting rod 42 is rotatably connected to the cover plate 36, one side of the fourth connecting rod 40 is sleeved with a sliding sleeve 41, the sliding sleeve 41 is rotatably connected to the third connecting rod 35, when hard impurities in the first collecting box 10 are collected too much, the first collecting box 10 presses the second connecting plate 38 to pull the third connecting rod 35 to pull the sliding sleeve 41 to move the third connecting rod 42, thereby pulling the cover plate 36 to prevent the sliding sleeve 9 from blocking the hard impurities in the first collecting box 10 to be too much to clean the discharging pipe.

The working principle of the embodiment is as follows: when hard impurities in the first collection box 10 are more, the first collection box 10 presses the second connecting plate 38, so that the sliding rod 37 slides downwards on the first connecting plate 11, and meanwhile, the second spring 39 contracts, so that the second connecting plate 38 pulls the third connecting rod 35 to move downwards, the third connecting rod 35 pulls the sliding sleeve 41 to move downwards, the sliding sleeve 41 drives the fourth connecting rod 40 and the fifth connecting rod 42 to rotate, the fifth connecting rod 42 pulls the cover plate 36 upwards, the cover plate 36 blocks the discharging pipe 9, and the discharging pipe 9 is prevented from continuing to discharge.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

In the description herein, it is to be noted that, unless expressly stated or limited otherwise, the terms "connected" and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the connection may be mechanical or electrical, and may be direct or indirect via an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, it is noted that relational terms such as first and second, and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

Claims

1. A hard fiber removing device for removing biological fuel particles from biomass comprises a bottom plate (13), and is characterized in that the upper surface of the bottom plate (13) is fixedly connected with a shell (5), the upper surface of the bottom plate (13) is provided with a feeding mechanism, the upper surface of the bottom plate (13) is fixedly connected with a partition plate (16), the partition plate (16) is fixed with the shell (5), the inner wall of one side of the shell (5) is provided with a grinding mechanism, the grinding mechanism comprises two second crushing rollers (32), the second crushing rollers (32) are rotatably connected with the shell (5), the inner wall of one side of the shell (5) is movably connected with two first crushing rollers (31), the first crushing rollers (31) are meshed with the second crushing rollers (32), one end of the second crushing rollers (32) is fixedly connected with a gear (34), the outer wall of one side of the shell (5) is fixedly connected with a support plate, the upper surface of the support plate is fixedly connected with a double-shaft-extension asynchronous motor (7), one end of an output shaft-extension asynchronous motor (7) is fixedly connected with a second belt pulley (8), the outer wall of one side of the shell (5) is connected with a first pulley (6), and the first pulley (6) passes through the connecting shaft (6), and the connecting shaft (6) is connected with the shell (5), the one end fixedly connected with carousel (19) of connecting axle, one side fixedly connected with limit frame (29) of carousel (19), spout (28) have all been seted up to the both sides of shell (5), and one side swing joint of spout (28) has slide (18), and the top swing joint of slide (18) has second connecting rod (27), the one end fixedly connected with spliced pole (30) of second connecting rod (27), and the sliding connection of spliced pole (30) and limit frame (29), two small opening (26) have been seted up to one side of slide (18), one side fixedly connected with rack (33) of slide (18), and rack (33) mesh with gear (34), flitch (17) under one side inner wall fixedly connected with of shell (5), and baffle (16) pass slide (18) and are fixed mutually with unloading board (17).

2. The hard fiber removing apparatus for removing bio-fuel particles from bio-fuel particles according to claim 1, wherein the feeding mechanism comprises a lifting pipe (2), the lifting pipe (2) is fixed on the upper surface of the bottom plate (13) through bolts, the lifting pipe (2) is fixed with the housing (5), the top of the lifting pipe (2) is fixedly connected with a stepping motor (3), one end of an output shaft of the stepping motor (3) passes through the lifting pipe (2) and is fixedly connected with a rotating shaft (25), one side of the rotating shaft (25) is fixedly connected with a spiral piece (24), one side of the lifting pipe (2) is fixedly connected with a feeding pipe (14), and one end of the feeding pipe (14) is fixedly connected with a feeding hopper (1).

3. The hard fiber removing device for removing bio-fuel particles as claimed in claim 1, wherein a baffle (15) is fixedly connected to one side of the partition plate (16), a vibration plate (23) is movably connected to one side of the inner wall of the housing (5), a first connecting rod (20) is movably connected to the upper surface of the vibration plate (23), the first connecting rod (20) is fixed to the limiting frame (29), a fixing plate is fixedly connected to one side of the inner wall of the housing (5), a first spring (21) is fixedly connected to the upper surface of the fixing plate, and the other end of the first spring (21) is fixed to the vibration plate (23).

4. The device for removing hard fibers from biofuel particles as claimed in claim 3, wherein a feed opening is formed in one side of the housing (5), a feed pipe (9) is fixedly connected to one side of the feed opening, a first connecting plate (11) is fixedly connected to the outer wall of one side of the housing (5), and a first collecting box (10) is arranged on the upper surface of the first connecting plate (11).

5. The device for removing hard fibers from biofuel particles as claimed in claim 3, wherein the vibration plate (23) is provided with a plurality of anti-slip threads (22) on the upper surface thereof, and the anti-slip threads (22) are uniformly distributed.

6. The device for removing hard fibers from biofuel particles as set forth in claim 1, wherein said housing (5) has a viewing port opened on one side, and a viewing window (4) is fixedly connected to the viewing port.

7. A device for removing hard fibres from bio fuel particles according to claim 1, characterised in that the bottom of the housing (5) is provided with a second collecting box (12), a handle being fixedly connected to one side of the second collecting box (12).

8. The device for removing hard fibers from biofuel particles according to claim 4, further comprising a cover plate (36), wherein the cover plate (36) is rotatably connected with the feeding pipe (9), one side of the first connecting plate (11) is movably connected with a plurality of sliding rods (37), the top of each sliding rod (37) is fixedly connected with a second connecting plate (38), one side of each sliding rod (37) is movably connected with a second spring (39), the second springs (39) are positioned between the second connecting plates (38) and the first connecting plates (11), two sides of each second connecting plate (38) are fixedly connected with third connecting rods (35), two sides of the feeding pipe (9) are movably connected with fourth connecting rods (40), one end of each fourth connecting rod (40) is movably connected with a fifth connecting rod (42), the fifth connecting rods (42) are rotatably connected with the cover plate (36), one side of each fourth connecting rod (40) is sleeved with a sliding sleeve (41), and the sliding sleeves (41) are rotatably connected with the third connecting rods (35).