CN211659849U

CN211659849U - Staggered stirring equipment for producing instant powder

Info

Publication number: CN211659849U
Application number: CN201922476965.9U
Authority: CN
Inventors: 熊相人; 陈碧峰
Original assignee: Kunming Hongcheng Food Technology Co Ltd
Current assignee: Kunming Hongcheng Food Technology Co Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-10-13
Anticipated expiration: 2029-12-31

Abstract

The utility model relates to the technical field of stirring equipment, in particular to staggered stirring equipment for producing instant powder, which comprises a support and a stirring box, wherein the stirring box is fixedly connected inside the support, the front end face of the stirring box is fixedly connected with an observation plate which is distributed leftwards and rightwards, the left side of the upper end face of the stirring box is fixedly connected with a fixing frame, the upper end face of the fixing frame is fixedly connected with a stirring device, the outer side of the stirring device is rotatably connected with the stirring box, the right side of the fixing frame is provided with a feeding device, the lower end face of the feeding device is communicated with the stirring box, the right end face of the stirring box is fixedly connected with a supporting plate, and the upper end; the utility model discloses in, through agitator motor, chain and the driven sprocket that sets up, main, assistance (mixing) shaft can make stirring vane crisscross rotation to realize the cross mixture of liquid, shorten the mixing time of its material and liquid greatly, improve mixing efficiency, save time.

Description

Staggered stirring equipment for producing instant powder

Technical Field

The utility model relates to an agitated vessel technical field specifically is an instant powder production is with alternating expression agitated vessel.

Background

At present, the processing process of instant coffee powder at home and abroad is a pretreatment working section, an extraction working section (with the concentration of 5-12%), an aroma-extracting working section, a heat concentration working section (with the concentration of 42-55%), a blending working section, a spray drying working section or a freeze drying working section, and because heat concentration destroys heat-sensitive substances such as the flavor, aroma and nutrient contents of coffee, partial aroma liquid is distilled out of the extracted coffee liquid by aroma-extracting equipment before the heat concentration, then the heat concentration is carried out, and the aroma liquid is restored to the coffee concentrated liquid after the heat concentration, namely the blending working section.

The most important thing is the mixture of material at present processing stage, and current mixing is only stirred through single (mixing) shaft, and its stirring direction all rotates to same direction, and its stirring mixes inefficiency, needs long-time stirring work, consequently, provides an instant powder production with alternating expression agitated vessel to above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an alternating expression agitated vessel is used in instant powder production to solve the problem that provides in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a staggered stirring device for producing instant powder comprises a support and a stirring box, wherein the inside of the support is fixedly connected with the stirring box, the front end face of the stirring box is fixedly connected with an observation plate which is distributed leftwards and rightwards, the left side of the upper end face of the stirring box is fixedly connected with a fixing frame, the upper end face of the fixing frame is fixedly connected with a stirring device, the outer side of the stirring device is rotatably connected with the stirring box, the right side of the fixing frame is provided with a feeding device, the lower end face of the feeding device is communicated with the stirring box, the right end face of the stirring box is fixedly connected with a supporting plate, the upper end face of the supporting plate is fixedly connected with a blowing device, the left side of the blowing device is slidably connected with the stirring box, the left end face of the stirring device is slidably connected with a collecting device, the outer side of the collecting device is, the lower end face of the stirring box is fixedly connected with through pipes which are uniformly distributed.

Preferably, the inboard arc recess that is equipped with evenly distributed of agitator tank lower extreme face, and all be equipped with the siphunculus in the recess, equal spiral connection of terminal surface has sealed lid under the siphunculus, the observation board comprises transparent glass plate.

Preferably, the stirring device comprises a stirring motor and a rotating shaft, the lower end face of the stirring motor is fixedly connected with a fixing frame, the tail end of a main shaft of the stirring motor is fixedly connected with the rotating shaft, the outer side of the rotating shaft is rotatably connected with a stirring box, the lower end face of the rotating shaft is fixedly connected with a main stirring shaft, the outer side of the main stirring shaft is fixedly connected with stirring blades which are uniformly distributed, the outer side of the rotating shaft is fixedly connected with a driving sprocket, the outer side of the driving sprocket is provided with a chain, the right side of the chain is provided with a driven sprocket, the inner side of the driven sprocket is fixedly connected with a rotating rod, a driving gear is arranged above the rotating rod, the inner side of the driving gear is fixedly connected with the rotating rod, the lower, the connecting rod outside rotates with the agitator tank to be connected, terminal surface fixedly connected with assists the (mixing) shaft under the connecting rod, assist (mixing) shaft outside fixedly connected with be about the stirring vane who distributes, assist (mixing) shaft down the terminal surface rotate with the agitator tank to be connected.

Preferably, the stirring blades on the outer side of the main stirring shaft and the stirring blades on the outer side of the auxiliary stirring shaft are arranged in a mutually staggered manner.

Preferably, feed arrangement includes feeder hopper and shielding plate, terminal surface fixedly connected with shielding plate under the feeder hopper, the shielding plate outside fixedly connected with workbin, the inside fixedly connected with screen panel of shielding plate, the screen panel below is equipped with presses down dirt cloth, press down dirt cloth inboard and shielding plate fixed connection, press down dirt cloth outside and workbin fixed connection, terminal surface fixedly connected with unloading pipe under the workbin, unloading pipe outside fixedly connected with plate valve, unloading pipe terminal surface and agitator tank intercommunication down.

Preferably, the dust suppression cloth is annularly arranged, the dust suppression cloth is composed of a cotton yarn layer, the material box is composed of a transparent glass plate, and the upper end face of the shielding plate is concavely arranged.

Preferably, the blowing device comprises a fan and a hose, the lower end face of the fan is fixedly connected with the support plate, the left side of the fan is fixedly connected with the hose, the left side of the hose is fixedly connected with an air vent plate, the right side of the air vent plate is connected with the stirring box in a sliding manner, the upper end face of the air vent plate is fixedly connected with a connecting plate, the outer side of the connecting plate is connected with the stirring box in a sliding manner, the rear side of the upper end face of the connecting plate is connected with a limit screw in a threaded manner, and the lower end face of the.

Preferably, the connecting plate is L-shaped, the outer side of the hose is connected with the stirring box in a sliding mode, the left end face of the ventilating plate is obliquely arranged, and the left end face of the ventilating plate is provided with uniformly distributed ventilating holes.

Preferably, the collecting device comprises a sliding plate and sliding blocks, the left end face of the sliding plate is in sliding connection with the stirring box, the lower end face of the sliding plate is fixedly connected with a collecting cover, the cross section of the collecting cover is in a hook-shaped arrangement, four sliding blocks are arranged on the right side of each sliding block, and the left end face of each sliding block is in sliding connection with the fixing frame.

Preferably, the method of use is as follows:

step 1: placing the raw materials in a feeding device, and then dropping the raw materials into a stirring box to realize blanking work;

step 2: injecting a water source into the stirring tank, starting the stirring device to realize staggered stirring work, and starting the blowing device to blow the scum on the upper layer of the liquid level leftwards after the stirring is finished;

and step 3: the scum is taken out through the collecting device by sliding the collecting device upwards to achieve the filtering work;

and 4, step 4: standing for 3 minutes, opening a discharge valve, and then discharging the materials through a vent pipe;

and 5: the circulation is repeated for many times, and after the work is finished, the deposited residues can be removed by rotating the sealing cover.

Compared with the prior art, the beneficial effects of the utility model are that:

1. in the utility model, through the arranged stirring motor, the rotating shaft, the driving sprocket, the main stirring shaft, the stirring blades, the chain and the driven sprocket, the main stirring shaft and the auxiliary stirring shaft can enable the stirring blades to rotate in a staggered way, thereby realizing the cross mixing of liquid, greatly shortening the mixing time of materials and the liquid, improving the mixing efficiency and saving the time;

2. in the utility model, when the materials are put into the feed hopper, the powder materials are raised towards the inner wall of the feed hopper through the arranged hopper, the baffle plate, the mesh enclosure, the dust suppression cloth, the feed box, the blanking pipe and the plate valve, the powder materials can be filtered through the dust suppression cloth, the mesh enclosure can realize the discharge of gas, the normal blanking work is ensured, and the environment is ensured to be clean while the resource waste is avoided;

3. in the utility model, the floating slag on the upper layer is blown leftwards by the fan through the fan, the hose, the vent plate, the sliding block and the collecting cover, and then is lifted upwards by the collecting cover, thereby realizing the cleaning of the floating slag and ensuring the quality of the product;

4. the utility model discloses in, through the sealed lid and the siphunculus that set up, after the circulation work is accomplished, through the period material of stewing then open the discharge valve door, the precipitate falls into the agitator tank under in the recess of the inboard of terminal surface this moment, can take out its precipitate through rotating sealed lid, guarantees the normal clear of work next time.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a sectional view of the stirring box of the present invention;

FIG. 3 is a schematic view of the structure at A of FIG. 2 according to the present invention;

FIG. 4 is a schematic structural view of the feeding device of the present invention;

FIG. 5 is a schematic view of the structure of FIG. 2B according to the present invention;

FIG. 6 is a schematic diagram of the structure of the connection plate of the present invention;

FIG. 7 is a schematic diagram of the structure of the vent plate of the present invention;

fig. 8 is a schematic view of the structure of the collecting cover of the present invention.

In the figure: 1-bracket, 2-stirring box, 3-fixing frame, 4-stirring device, 401-stirring motor, 402-rotating shaft, 403-driving sprocket, 404-main stirring shaft, 405-stirring blade, 406-chain, 407-driven sprocket, 408-rotating rod, 409-driving gear, 410-driven gear, 411-connecting rod, 412-auxiliary stirring shaft, 5-feeding device, 501-feeding hopper, 502-baffle plate, 503-net cover, 504-dust-suppressing cloth, 505-material box, 506-discharging pipe, 507-plate valve, 6-supporting plate, 7-blowing device, 701-fan, 702-hose, 703-aeration plate, 704-connecting plate, 705-limiting screw, 8-observation plate, water-spraying device, spraying, 9-collection device, 901-sliding plate, 902-sliding block, 903-collection cover, 10-sealing cover, 11-vent pipe, 12-discharge valve and 13-through pipe.

Detailed Description

Example 1:

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

the staggered stirring equipment for producing the instant powder comprises a support 1 and a stirring box 2, wherein the stirring box 2 is fixedly connected inside the support 1, arc-shaped grooves which are uniformly distributed are formed in the inner side of the lower end face of the stirring box 2, through pipes 13 are arranged in the grooves, the lower end face of each through pipe 13 is spirally connected with a sealing cover 10, after the arrangement is convenient to work, precipitates are taken out in a centralized manner by rotating the sealing covers 10, the cleaning time is saved, the observation plate 8 is formed by transparent glass plates, the arrangement is convenient for people to observe the liquid level, the front end face of the stirring box 2 is fixedly connected with the observation plates 8 which are distributed left and right, a fixing frame 3 is fixedly connected to the left side of the upper end face of the stirring box 2, a stirring device 4 is fixedly connected to the upper end face of the fixing frame 3, the stirring device 4 comprises a stirring motor 401 and a rotating shaft 402, the lower end face of the stirring, the stirring machine is characterized in that a rotating shaft 402 is fixedly connected to the tail end of a main shaft of the stirring motor 401, the outer side of the rotating shaft 402 is rotatably connected with the stirring box 2, a main stirring shaft 404 is fixedly connected to the lower end face of the rotating shaft 402, stirring blades 405 which are uniformly distributed are fixedly connected to the outer side of the main stirring shaft 404, a driving sprocket 403 is fixedly connected to the outer side of the rotating shaft 402, a chain 406 is arranged on the outer side of the driving sprocket 403, a driven sprocket 407 is arranged on the right side of the chain 406, a rotating rod 408 is fixedly connected to the inner side of the driven sprocket 407, a driving gear 409 is arranged above the rotating rod 408, the inner side of the driving gear 409 is fixedly connected with the rotating rod 408, the lower end face of the rotating rod 408 is rotatably connected with the stirring box 2, a driven, the lower end face of the connecting rod 411 is fixedly connected with an auxiliary stirring shaft 412, the outer side of the auxiliary stirring shaft 412 is fixedly connected with stirring blades 405 distributed left and right, the lower end face of the auxiliary stirring shaft 412 is rotatably connected with the stirring box 2, the stirring blades 405 outside the main stirring shaft 404 and the stirring blades 405 outside the auxiliary stirring shaft 412 are arranged in a mutually staggered manner, the arrangement can enable the main stirring shaft 404 and the stirring blades 405 outside the auxiliary stirring shaft 412 to rotate oppositely, so that materials are more easily mixed, the stirring efficiency is improved, the outer side of the stirring device 4 is rotatably connected with the stirring box 2, the right side of the fixing frame 3 is provided with a feeding device 5, the feeding device 5 comprises a feeding hopper 501 and a baffle plate 502, the lower end face of the feeding hopper 501 is fixedly connected with a baffle plate 502, the outer side of the baffle plate 502 is fixedly connected with a material box 505, and the, the dust suppression cloth 504 is arranged below the mesh enclosure 503, the inner side of the dust suppression cloth 504 is fixedly connected with the shielding plate 502, the outer side of the dust suppression cloth 504 is fixedly connected with the material box 505, the lower end face of the material box 505 is fixedly connected with the discharging pipe 506, the outer side of the discharging pipe 506 is fixedly connected with the plate valve 507, the lower end face of the discharging pipe 506 is communicated with the stirring box 2, the dust suppression cloth 504 is arranged in a ring shape, the dust suppression cloth 504 is formed by a cotton yarn layer, the material box 505 is formed by a transparent glass plate, the upper end face of the shielding plate 502 is arranged in a concave surface shape, the arrangement can effectively prevent raw material dust from being discharged from the feeding hopper 501, the shielding plate 502, the mesh enclosure 503, the dust suppression cloth 504 and the material box 505 are matched for use, firstly, the purpose of suppressing dust can be achieved, the situation that dust is raised when materials fall is avoided, the arranged dust suppression cloth 504 can, the lower end face of the feeding device 5 is communicated with the stirring box 2, the right end face of the stirring box 2 is fixedly connected with a supporting plate 6, the upper end face of the supporting plate 6 is fixedly connected with a blowing device 7, the blowing device 7 comprises a fan 701 and a hose 702, the lower end face of the fan 701 is fixedly connected with the supporting plate 6, the left side of the fan 701 is fixedly connected with the hose 702, the left side of the hose 702 is fixedly connected with a vent plate 703, the right side of the vent plate 703 is slidably connected with the stirring box 2, the upper end face of the vent plate 703 is fixedly connected with a connecting plate 704, the outer side of the connecting plate 704 is slidably connected with the stirring box 2, the rear side of the upper end face of the connecting plate 704 is rotatably connected with a limiting screw 705, the lower end face of the limiting screw 705 is rotatably connected with the stirring box 2, the connecting plate 704 is in an L-shaped arrangement, the outer side, the left end face of the ventilation plate 703 is provided with vent holes which are uniformly distributed, the fan 701, the hose 702 and the ventilation plate 703 can blow scum on the upper layer leftwards, so that the collection work of the collection device 9 is facilitated, the height of the ventilation plate 703 can be controlled by the connecting plate 704 and the limit screws 705, the ventilation plate is suitable for liquid levels with different heights, the left side of the blowing device 7 is in sliding connection with the stirring box 2, the left end face of the stirring device 4 is in sliding connection with the collection device 9, the collection device 9 comprises a sliding plate 901 and a sliding block 902, the left end face of the sliding plate 901 is in sliding connection with the stirring box 2, the lower end face of the sliding plate 901 is fixedly connected with a collection cover 903, the cross section of the collection cover 903 is in a hook shape, the right side of the sliding block 902 is provided with four sliding blocks 902, the left end face, can filter the dross on upper strata, guarantee the quality that the product mixes, 9 outsides of collection device and 2 sliding connection of agitator tank, 2 right-hand member face below fixedly connected with breather pipes 11 of agitator tank, breather pipe 11 outside fixedly connected with discharge valve 12, terminal surface fixedly connected with evenly distributed's siphunculus 13 under 2 agitator tank.

The working process is as follows: when the device is used, a power supply is switched on, raw materials are put into the feeding hopper 501, then the raw materials enter the material box 505 through the feeding hopper 501, then the raw materials are contacted with the material box 505, so that powdery dust raw materials are excited, the dust raw materials float upwards on the inner wall of the material box 505, under the blocking of the dust suppression cloth 504, dust is filtered, air moves upwards through the dust suppression cloth 504 and is finally discharged through the mesh enclosure 503, so that the circulation of air is realized, the arrangement avoids the dust raising phenomenon of the raw materials in the discharging process, the waste of resources is effectively avoided, the cleanness and tidiness of the working environment are ensured, quantitative discharging is ensured through the scales on the outer side of the discharging pipe 506, discharging work can be realized by opening the plate valve 507, then a water source is injected into the stirring box 2, the observation plate 704 can observe the height of a liquid level, then the connecting plate 705 is driven to move by rotating the limiting screw 705, the aeration plate 703 is positioned above the liquid level, the stirring motor 401 is started to drive the rotation shaft 402 to rotate, the rotation shaft 402 drives the driving sprocket 403 to rotate, and simultaneously drives the main stirring shaft 404 and the stirring blades 405 to rotate, at the moment, the chain 406 is driven by the driving sprocket 403 to rotate, the chain 406 drives the driven sprocket 407 to rotate, the driven sprocket 407 drives the rotation shaft 408 to rotate, the rotation shaft 408 drives the driving gear 409 to rotate, the driving gear 409 drives the driven gear 410 to rotate, the driven gear 410 drives the connecting rod 411 to rotate, the connecting rod 4111 drives the auxiliary stirring shaft 412 and the stirring blades 405 on the outer side to rotate, at the moment, the stirring blades 405 on the left side and the right side rotate mutually, the rotation directions are opposite, and the two sides are arranged in a staggered manner, the material mixing is more uniform, the stirring time is shortened, after the mixing is completed, the fan 701 is started to drive the air to circulate, then through to having slip sliding block 902, make sliding block 903 slide to in the mount 3, then upwards mention sliding plate 901 and drive and collect cover 903 rebound, thereby filter the dross on liquid level upper strata, then 3 minutes stew, make the precipitate deposit, through opening relief valve 9, solution passes through breather pipe 11 and discharges, thereby carry out process on next step, after batch material mixes the completion, then through rotating sealed lid 10 one by one, pass through 13 siphunculuss discharges remaining precipitate in the inboard recess of terminal surface under the agitator tank 3, wash through the water source and can realize the clearance work, the clearance of precipitate is made things convenient for in this kind of setting, and make the precipitate difficult to flow into next process along with the material, guarantee the quality of product.

The principles and embodiments of the present invention have been explained herein using specific examples, which are presented only to assist in understanding the methods and their core concepts. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes can be made without departing from the principle of the present invention, and the above technical features can be combined in a proper manner; such modifications, variations, combinations, or adaptations of the invention in other contexts without modification may be viewed as within the scope of the invention.

Claims

1. The utility model provides an instant powder production is with alternating expression agitated vessel, includes support (1) and agitator tank (2), its characterized in that: the stirring box (2) is fixedly connected in the support (1), the observation plate (8) which is distributed left and right is fixedly connected with the front end face of the stirring box (2), the fixing frame (3) is fixedly connected with the left side of the upper end face of the stirring box (2), the stirring device (4) is fixedly connected with the upper end face of the fixing frame (3), the outer side of the stirring device (4) is rotatably connected with the stirring box (2), the feeding device (5) is arranged on the right side of the fixing frame (3), the lower end face of the feeding device (5) is communicated with the stirring box (2), the right end face of the stirring box (2) is fixedly connected with the supporting plate (6), the blowing device (7) is fixedly connected with the upper end face of the supporting plate (6), the left side of the blowing device (7) is slidably connected with the stirring box (2), and the left end face of the stirring device (4, collection device (9) outside and agitator tank (2) sliding connection, agitator tank (2) right-hand member face below fixedly connected with breather pipe (11), breather pipe (11) outside fixedly connected with arranges material valve (12), terminal surface fixedly connected with evenly distributed's siphunculus (13) under agitator tank (2).

2. The staggered stirring device for producing instant powder according to claim 1, wherein: the utility model discloses a glass plate, including agitator tank (2), the terminal surface inboard of agitator tank (2) is opened and is equipped with evenly distributed's arc recess, and all is equipped with siphunculus (13) in the recess, the equal screwed connection of terminal surface has sealed lid (10) under siphunculus (13), it comprises transparent glass plate to observe board (8).

3. The staggered stirring device for producing instant powder according to claim 1, wherein: agitating unit (4) includes agitator motor (401) and axis of rotation (402), terminal surface and mount (3) fixed connection under agitator motor (401), agitator motor (401) main shaft end fixedly connected with axis of rotation (402), the axis of rotation (402) outside is rotated with agitator tank (2) and is connected, terminal surface fixedly connected with main (mixing) shaft (404) under axis of rotation (402), equal fixedly connected with evenly distributed's stirring vane (405) in main (mixing) shaft (404) outside, axis of rotation (402) outside fixedly connected with drive sprocket (403), the drive sprocket (403) outside is equipped with chain (406), chain (406) right side is equipped with driven sprocket (407), the inboard fixedly connected with dwang (408) of driven sprocket (407), dwang (408) top is equipped with driving gear (409), driving gear (409) inboard and dwang (408) fixed connection, dwang (408) lower extreme face is rotated with agitator tank (2) and is connected, the meshing of driving gear (409) right side has driven gear (410), driven gear (410) inboard fixedly connected with connecting rod (411), the connecting rod (411) outside is rotated with agitator tank (2) and is connected, terminal surface fixedly connected with assists (mixing) shaft (412) under connecting rod (411), assist (mixing) shaft (412) outside fixedly connected with be about the stirring vane (405) that distributes, assist (mixing) shaft (412) lower extreme face and agitator tank (2) to rotate and be connected.

4. The staggered stirring device for producing instant powder according to claim 3, wherein: the stirring blades (405) on the outer side of the main stirring shaft (404) and the stirring blades (405) on the outer side of the auxiliary stirring shaft (412) are arranged in a mutually staggered mode.

5. The staggered stirring device for producing instant powder according to claim 1, wherein: feed arrangement (5) include feeder hopper (501) and shielding plate (502), terminal surface fixedly connected with shielding plate (502) under feeder hopper (501), shielding plate (502) outside fixedly connected with workbin (505), inside fixedly connected with screen panel (503) of shielding plate (502), screen panel (503) below is equipped with presses down dirt cloth (504), press down dirt cloth (504) inboard and shielding plate (502) fixed connection, press down dirt cloth (504) outside and workbin (505) fixed connection, terminal surface fixedly connected with unloading pipe (506) under workbin (505), unloading pipe (506) outside fixedly connected with plate valve (507), unloading pipe (506) lower terminal surface and agitator tank (2) intercommunication.

6. The staggered stirring device for producing instant powder according to claim 5, wherein: the dust suppression cloth (504) is arranged annularly, the dust suppression cloth (504) is composed of a cotton yarn layer, the material box (505) is composed of a transparent glass plate, and the upper end surface of the shielding plate (502) is arranged in a concave surface mode.

7. The staggered stirring device for producing instant powder according to claim 1, wherein: blowing device (7) include fan (701) and hose (702), terminal surface and backup pad (6) fixed connection under fan (701), fan (701) left side fixedly connected with hose (702), hose (702) left side fixedly connected with aeration plate (703), aeration plate (703) right side and agitator tank (2) sliding connection, aeration plate (703) up end fixedly connected with connecting plate (704), the connecting plate (704) outside and agitator tank (2) sliding connection, connecting plate (704) up end rear side spiro union has stop screw (705), terminal surface and agitator tank (2) rotation are connected under stop screw (705).

8. The staggered stirring device for producing instant powder according to claim 7, wherein: the connecting plate (704) is L-shaped, the outer side of the hose (702) is in sliding connection with the stirring box (2), the left end face of the aeration plate (703) is obliquely arranged, and the left end face of the aeration plate (703) is provided with uniformly distributed air vents.

9. The staggered stirring device for producing instant powder according to claim 1, wherein: the collecting device (9) comprises a sliding plate (901) and sliding blocks (902), the left end face of the sliding plate (901) is in sliding connection with the stirring box (2), a collecting cover (903) is fixedly connected to the lower end face of the sliding plate (901), the cross section of the collecting cover (903) is in a hook-shaped arrangement, four sliding blocks (902) are arranged on the right side of each sliding block (902), and the left end face of each sliding block (902) is in sliding connection with the fixed frame (3).