CN110978275A

CN110978275A - Mortar stirring device

Info

Publication number: CN110978275A
Application number: CN201911323413.2A
Authority: CN
Inventors: 孙珍荣; 张忠波; 邱海燕; 嵇连生; 于旭红; 王志明
Original assignee: Jiangsu Suzhong Construction Group Co Ltd
Current assignee: Jiangsu Suzhong Construction Group Co Ltd
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-04-10

Abstract

The invention provides a mortar stirring device, which comprises a base and a tank body arranged on the base, wherein an openable partition plate is arranged in the tank body, the side edge of the partition plate is circumferentially connected with the inner wall of the tank body, and the tank body is divided into a stirring bin and a discharging bin from top to bottom; the upper part of the stirring bin is provided with a feeding hole; the upper part of the stirring bin is also provided with a water tank which is communicated with the inside of the stirring bin through a spray head; a stirring shaft which is arranged along the axial direction of the tank body is also arranged in the stirring bin, stirring knives are distributed on the stirring shaft, the upper end of the stirring shaft penetrates through the upper end part of the tank body and is connected with the output end of an external stirring motor, and the stirring shaft is driven by the stirring motor to rotate around a shaft; the lateral wall of the discharging bin is provided with a discharging port, and the discharging port is provided with a discharging bin door. So design will stir the storehouse and separate with going out the feed bin, realize stirring function and ejection of compact function each other and do not influence, stir the storehouse and stir the back and put into the feed bin with the mortar and can carry out the stirring next time, need not wait for the mortar to be stirred again after being used up completely, promoted work efficiency.

Description

Mortar stirring device

Technical Field

The invention relates to the field of construction machinery, in particular to a mortar stirring device.

Background

The traditional mortar stirrer can stir the mortar next time after the stirring is completed and the internal mortar is completely used up, so that the waiting time is long, and the working efficiency is low.

Disclosure of Invention

In view of the drawbacks of the prior art, it is an object of the present invention to provide a mortar mixing device that solves one or more of the above-mentioned technical problems.

According to one aspect of the invention, a mortar stirring device is provided, which comprises a base and a tank body, wherein the tank body is a barrel body with two sealed ends and is arranged on the base; an openable partition plate is arranged in the tank body, the side edge of the partition plate is circumferentially connected with the inner wall of the tank body, and the tank body is vertically divided into a stirring bin and a discharging bin; a feed inlet is formed in the upper part of the stirring bin; the upper part of the stirring bin is also provided with a water tank, and the water tank is communicated with the inside of the stirring bin through a spray head; a stirring shaft which is arranged along the axial direction of the tank body is also arranged in the stirring bin, stirring knives are distributed on the stirring shaft, the upper end of the stirring shaft penetrates through the upper end part of the tank body and is connected with the output end of an external stirring motor, and the stirring shaft is driven by the stirring motor to rotate around a shaft; the lateral wall of the discharging bin is provided with a discharging port, and the discharging port is provided with a discharging bin door. So design will stir the storehouse and separate with going out the feed bin, realize stirring function and ejection of compact function each other and do not influence, stir the storehouse and stir the back and put into the feed bin with the mortar and can carry out the stirring next time, need not wait for the mortar to be stirred again after being used up completely, promoted work efficiency.

In some embodiments, the feed inlet is externally connected with a feed channel, the feed channel comprises a channel body, the channel body is composed of a feed hopper and a feed pipe, and the feed pipe is positioned at the lower end of the feed hopper and is communicated with the feed hopper; the lower opening of the feeding pipe is communicated with the feeding hole; the feeding hopper comprises a main feeding hopper arranged at the central part of the feeding hopper, the upper part of the main feeding hopper is a cylindrical channel, and the size of the upper opening of the main feeding hopper is the same as that of the lower opening of the main feeding hopper; the lower part of the main feed hopper is a frustum-shaped channel, the size of an upper opening is larger than that of a lower opening, the upper opening of the main feed hopper is communicated with the lower opening of a cylindrical channel at the upper part of the main feed hopper, and the lower opening of the main feed hopper is communicated with the upper opening of the feed pipe; the feed hopper also comprises an auxiliary feed hopper which is positioned outside the main feed hopper; the auxiliary feed hopper comprises an auxiliary material receiving channel, an auxiliary drainage channel and an auxiliary material discharging channel, the auxiliary drainage channel is arranged between the auxiliary material receiving channel and the auxiliary material discharging channel, an upper opening of the auxiliary drainage channel is communicated with a lower opening of the auxiliary material receiving channel, a lower opening of the auxiliary drainage channel is communicated with an upper opening of the auxiliary material discharging channel, and a lower opening of the auxiliary material discharging channel is communicated with the material feeding pipe; the auxiliary material receiving channel is a circular channel, the size of an upper opening is the same as that of a lower opening, and the height of the outer side wall of the upper opening of the auxiliary material receiving channel is higher than that of the side wall of the cylindrical channel at the upper part of the main feed hopper; the auxiliary drainage channel is a circular truncated cone-shaped channel and is communicated with the drainage inner wall and the drainage outer wall, and the distance between the two gradually decreases from top to bottom; the auxiliary discharging channel is composed of a discharging inner wall and a discharging outer wall, and the distance between the discharging inner wall and the discharging outer wall is gradually increased from top to bottom. The efficiency of feeding can be promoted in feed channel's setting, also can avoid the raw materials to spill over from the feed inlet and extravagant. The raw materials at first gets into from main feeder hopper, when main feeder hopper come too late with the raw materials when leading, the raw materials that overflow get into vice feeder hopper, get into through vice feeder hopper and mix the feed cylinder, has promoted production efficiency.

In some embodiments, the base includes a base plate, a vibration isolation plate, a base, and a vibration isolation table; the shockproof plate is positioned between the base plate and the base, and the base plate is fixed on the shockproof plate through a shockproof support; the shockproof plate is connected with the base through a plurality of first springs, one end of each first spring is abutted against the shockproof plate, and the other end of each first spring is abutted against the base; the shockproof platform comprises a shockproof upright column and a shockproof cross beam, the shockproof cross beam is arranged above the shockproof plate, and one end of the shockproof cross beam is fixedly connected with the shockproof upright column; the base is further provided with a shockproof bolt, the shockproof cross beam is provided with a shockproof through hole for the shockproof bolt to pass through, one end of the shockproof bolt is fixed on the base, and the other end of the shockproof bolt passes through the shockproof through hole; the shockproof device also comprises a shockproof nut which is arranged above the shockproof cross beam and is matched with the shockproof bolt; one end of the shockproof cross beam, which is fixed with the shockproof upright post, is in a slope shape, the upper surface of the shockproof cross beam is horizontal, and the lower surface of the shockproof cross beam is in a slope shape; the lateral surface of the shockproof upright post is provided with a groove matched with the end part of the shockproof beam in shape, and the horizontal height of the upper surface of the groove is greater than that of the shockproof beam; the second spring is arranged between the base and the shockproof cross beam, one end of the second spring is abutted against the base, and the other end of the second spring is abutted against the shockproof cross beam; the second spring is sleeved on the shockproof bolt; the length of the second spring is 1.2 times that of the first spring. The shock absorption design is carried out on the base, so that the damage of the whole device due to severe shock can be effectively avoided.

In some embodiments, a speed reducer is further arranged between the output end of the stirring motor and the upper end of the stirring shaft. The speed reducer is arranged to enable the rotating speed of the stirring shaft to be matched with the actual demand, and the stirring motor is prevented from being damaged.

In some embodiments, the discharging bin is further provided with a discharging boosting structure, the discharging boosting structure comprises a discharging shaft and spiral blades, and the spiral blades are arranged on the discharging shaft and are arranged along the axial direction of the discharging shaft; one end of the discharging shaft points to the discharging port, the other end of the discharging shaft penetrates through the side wall of the discharging bin to be connected with the output end of an external discharging motor, and the discharging motor drives the discharging shaft to rotate around the shaft. Set up the mortar that ejection of compact boosting structure can help the stirring to accomplish on the one hand and discharge from going out the feed bin, on the other hand need not use the mortar that has already stirred the completion temporarily under the condition, can stir once more the mortar in going out the feed bin, avoids it to solidify.

In some embodiments, the partition plate is formed by splicing a laminate fixed on the side wall of the tank body and a discharge valve capable of being opened and closed, wherein a discharge through hole for mortar to pass through after stirring is formed in the middle of the laminate, and the shape and the size of the discharge valve are matched with those of the discharge through hole; the discharge valve is connected with the laminate through a hinge. The division board is designed into a plurality of pieces, so that the difficulty of communication between the stirring bin and the discharging bin can be reduced, and the control is convenient.

In some embodiments, the laminate further comprises a discharge cylinder for assisting the opening and closing of the discharge valve, a cylinder mounting seat is arranged on one side surface of the laminate, the telescopic end of the discharge cylinder is connected to the discharge valve, and the other end of the discharge cylinder is fixed on the cylinder mounting seat. Through setting up ejection of compact cylinder and further providing convenience for realizing the intercommunication in stirring storehouse and ejection of compact storehouse, the intelligent control of being convenient for.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic cross-sectional view of an embodiment of the present invention.

FIG. 2 is a schematic cross-sectional view of a feed channel according to an embodiment of the present invention.

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.

With reference to fig. 1 and 2, a mortar stirring apparatus includes a base 100 and a tank 200, wherein the tank 200 is a barrel with two sealed ends, in this embodiment, the tank 200 is placed in an up-down state, that is, the lower end of the tank 200 is placed on the base 100; an openable partition plate 230 is arranged in the tank body 200, the side edge of the partition plate 230 is circumferentially connected with the inner wall of the tank body 200, and the tank body 200 is divided into a stirring bin 210 and a discharging bin 220 from top to bottom; the upper part of the stirring bin 210 is provided with a feeding hole 201; the upper part of the stirring bin 210 is also provided with a water tank 400, and the water tank 400 is communicated with the inside of the stirring bin 210 through a spray head 410; the stirring bin 210 is also internally provided with a stirring shaft 211 which is arranged along the axial direction of the tank body 200, stirring knives 212 are distributed on the stirring shaft 211, the upper end of the stirring shaft 211 penetrates out of the upper end part of the tank body 200 to be connected with the output end of an external stirring motor 300, and the stirring shaft 211 is driven by the stirring motor 300 to rotate around the shaft; the side wall of the discharging bin 220 is provided with a discharging port 202, and the discharging port 202 is provided with a discharging bin door 2021. Wherein, the discharging bin gate 2021 is opened when needing discharging, and can be closed when not needing discharging temporarily. So design will stir the storehouse and separate with ejection of compact storehouse, realize stirring function and ejection of compact function each other and do not influence, stir the storehouse and stir the back and put into the ejection of compact storehouse with the mortar and can carry out the stirring next time, need not wait for the mortar to be stirred again after being used up completely, promoted work efficiency.

The feed inlet 201 is externally connected with a feed channel 500, the feed channel 500 comprises a channel body, the channel body is composed of a feed hopper and a feed pipe 530, and the feed pipe 530 is positioned at the lower end of the feed hopper and is communicated with the feed hopper; the lower opening of the feeding pipe 530 is communicated with the feeding port 201; the feed hopper comprises a main feed hopper 510 arranged at the central part of the feed hopper, the upper part of the main feed hopper 510 is a cylindrical channel, and the size of the upper opening of the main feed hopper is the same as that of the lower opening of the main feed hopper; the lower part of the main feed hopper 510 is a frustum-shaped channel, the size of the upper opening is larger than that of the lower opening, the upper opening of the frustum-shaped channel is communicated with the lower opening of the cylindrical channel at the upper part of the main feed hopper 510, and the lower opening of the frustum-shaped channel is communicated with the upper opening of the feed pipe 530; the feed hopper further comprises a secondary feed hopper 520, the secondary feed hopper 520 being located outside the primary feed hopper 510; the auxiliary feed hopper 520 comprises an auxiliary material receiving channel 521, an auxiliary flow guide channel 522 and an auxiliary discharge channel 523, the auxiliary flow guide channel 522 is arranged between the auxiliary material receiving channel 521 and the auxiliary discharge channel 523, an upper opening of the auxiliary flow guide channel 522 is communicated with a lower opening of the auxiliary material receiving channel 521, a lower opening of the auxiliary flow guide channel 522 is communicated with an upper opening of the auxiliary discharge channel 523, and a lower opening of the auxiliary discharge channel 523 is communicated with the feed pipe 530; the secondary material receiving channel 521 is a circular channel, the size of an upper opening is the same as that of a lower opening, and the height of the outer side wall of the upper opening is higher than that of the side wall of the cylindrical channel at the upper part of the main feed hopper 510; the auxiliary drainage channel 522 is a circular truncated cone-shaped channel and is communicated with the drainage inner wall 5222 and the drainage outer wall 5221, and the distance between the two gradually decreases from top to bottom; the auxiliary discharging channel 523 is composed of a discharging inner wall 5232 and a discharging outer wall 5231, and the distance between the two walls is gradually increased from top to bottom. The feeding channel 500 can improve feeding efficiency and avoid raw material overflow from the feeding hole to cause waste. The raw materials at first gets into from main feeder hopper, when main feeder hopper come too late with the raw materials when leading, the raw materials that overflow get into vice feeder hopper, get into through vice feeder hopper and mix the feed cylinder, has promoted production efficiency.

The base 100 includes a substrate 110, a vibration-proof plate 120, a base 130 and a vibration-proof stage 140; the shock-proof plate 120 is located between the substrate 110 and the base 130, and the substrate 110 is fixed on the shock-proof plate 120 through a shock-proof bracket 150; the shockproof plate 120 is connected with the base 130 through a plurality of first springs 160, one end of each first spring 160 is abutted against the shockproof plate 120, and the other end of each first spring 160 is abutted against the base 130; the anti-vibration table 140 comprises an anti-vibration upright 141 and an anti-vibration beam 142, wherein the anti-vibration beam 142 is arranged above the anti-vibration plate 120, and one end of the anti-vibration beam 142 is fixedly connected with the anti-vibration upright 141; the base 130 is further provided with a shockproof bolt 143, the shockproof beam 142 is provided with a shockproof through hole 1421 through which the shockproof bolt 143 passes, one end of the shockproof bolt 143 is fixed on the base 130, and the other end of the shockproof bolt passes through the shockproof through hole 1421; the anti-vibration nut 144 is arranged above the anti-vibration cross beam 142 and matched with the anti-vibration bolt 143; one end of the shockproof cross beam 142 fixed with the shockproof upright post 141 is in a slope shape, the upper surface of the shockproof cross beam is horizontal, and the lower surface of the shockproof cross beam is in a slope shape; the lateral surface of the shockproof upright post 141 is provided with a groove matched with the end part shape of the shockproof beam 142, and the horizontal height of the upper surface of the groove is greater than that of the shockproof beam 142; the shock-proof device further comprises a second spring 145, wherein the second spring 145 is arranged between the base 130 and the shock-proof cross beam 142, one end of the second spring 145 is abutted against the base 130, and the other end of the second spring 145 is abutted against the shock-proof cross beam 142; the second spring 145 is sleeved on the shockproof bolt 143; the length of the second spring 145 is 1.2 times that of the first spring 160. The shock absorption design of the base 100 can effectively prevent the whole device from being damaged due to severe shock.

A speed reducer 310 is further disposed between the output end of the stirring motor 300 and the upper end of the stirring shaft 211. The speed reducer 310 is arranged to match the rotation speed of the stirring shaft 211 with the actual requirement, so as to avoid damage to the stirring motor 300.

The discharging bin 220 is further provided with a discharging boosting structure, the discharging boosting structure comprises a discharging shaft 221 and a helical blade 222, and the helical blade 222 is arranged on the discharging shaft 221 and is arranged along the axial direction of the discharging shaft 221; one end of the discharging shaft 221 points to the discharging port 202, the other end of the discharging shaft penetrates through the side wall of the discharging bin 220 to be connected with the output end of an external discharging motor 223, and the discharging motor 223 drives the discharging shaft 221 to rotate around a shaft. Set up the mortar that ejection of compact boosting structure can help the stirring to accomplish on the one hand and discharge from going out in the feed bin 220, on the other hand, need not use the mortar that has already stirred the completion temporarily under the condition, can stir once more the mortar in going out feed bin 220, avoid it to solidify.

The partition plate 230 is formed by splicing a laminate 231 fixed on the side wall of the tank body 200 and a discharge valve 232 which can be opened and closed, a discharge through hole for mortar to pass through after stirring is formed in the middle of the laminate 231, and the shape and the size of the discharge valve 232 are matched with those of the discharge through hole; the outlet valve 232 is connected to the layer plate 231 via a hinge 234. The partition plate 230 is designed to be multi-slice, so that the difficulty in communicating the stirring bin 210 with the discharging bin 220 can be reduced, and the control is facilitated.

The device also comprises a discharging cylinder 233 for assisting the opening and closing of the discharging valve 232, a cylinder mounting seat 235 is arranged on one side surface of the laminate 231, the telescopic end of the discharging cylinder 233 is connected to the discharging valve 232, and the other end of the discharging cylinder 233 is fixed on the cylinder mounting seat 235. Through setting up ejection of compact cylinder 233 further for realizing stirring storehouse 210 and the intercommunication of ejection of compact storehouse 220 provides convenience, the intelligent control of being convenient for.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.

The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims

1. The mortar stirring device is characterized by comprising a base (100) and a tank body (200), wherein the tank body (200) is a barrel body with two sealed ends and is arranged on the base (100); an openable partition plate (230) is arranged in the tank body (200), the side edge of the partition plate (230) is circumferentially connected with the inner wall of the tank body (200) to divide the tank body (200) into an upper stirring bin (210) and a lower discharging bin (220); the upper part of the stirring bin (210) is provided with a feeding hole (201); the upper part of the stirring bin (210) is also provided with a water tank (400), and the water tank (400) is communicated with the inside of the stirring bin (210) through a spray head (410); a stirring shaft (211) axially arranged along the tank body (200) is further arranged in the stirring bin (210), stirring knives (212) are distributed on the stirring shaft (211), the upper end of the stirring shaft (211) penetrates through the upper end part of the tank body (200) to be connected with the output end of an external stirring motor (300), and the stirring shaft (211) is driven by the stirring motor (300) to rotate around a shaft; the lateral wall of the discharging bin (220) is provided with a discharging port (202), and the discharging port (202) is provided with a discharging bin door (2021).

2. The mortar mixing device according to claim 1, wherein the feeding port (201) is externally connected with a feeding channel (500), the feeding channel (500) comprises a channel body, the channel body is composed of a feeding hopper and a feeding pipe (530), the feeding pipe (530) is positioned at the lower end of the feeding hopper and is communicated with the feeding hopper; the lower opening of the feeding pipe (530) is communicated with the feeding hole (201); the feeding hopper comprises a main feeding hopper (510) arranged at the central part of the feeding hopper, the upper part of the main feeding hopper (510) is a cylindrical channel, and the size of the upper opening of the main feeding hopper is the same as that of the lower opening of the main feeding hopper; the lower part of the main feed hopper (510) is a frustum-shaped channel, the size of an upper opening is larger than that of a lower opening, the upper opening of the main feed hopper is communicated with the lower opening of a cylindrical channel at the upper part of the main feed hopper (510), and the lower opening of the main feed hopper is communicated with the upper opening of the feed pipe (530); the feed hopper further comprises a secondary feed hopper (520), the secondary feed hopper (520) being located outside the primary feed hopper (510); the auxiliary feed hopper (520) comprises an auxiliary material receiving channel (521), an auxiliary flow guide channel (522) and an auxiliary material outlet channel (523), the auxiliary flow guide channel (522) is arranged between the auxiliary material receiving channel (521) and the auxiliary material outlet channel (523), the upper opening of the auxiliary flow guide channel (522) is communicated with the lower opening of the auxiliary material receiving channel (521), the lower opening of the auxiliary flow guide channel (522) is communicated with the upper opening of the auxiliary material outlet channel (523), and the lower opening of the auxiliary material outlet channel (523) is communicated with the feed pipe (530); the auxiliary material receiving channel (521) is a circular channel, the size of an upper opening is the same as that of a lower opening, and the height of the outer side wall of the upper opening is higher than that of the side wall of a cylindrical channel at the upper part of the main feed hopper (510); the auxiliary drainage channel (522) is a circular truncated cone-shaped channel and is communicated with the drainage inner wall (5222) and the drainage outer wall (5221), and the distance between the two channels is gradually reduced from top to bottom; the auxiliary discharging channel (523) is composed of a discharging inner wall (5232) and a discharging outer wall (5231), and the distance between the discharging inner wall and the discharging outer wall is gradually increased from top to bottom.

3. The mortar mixing device of claim 1, wherein the base (100) comprises a base plate (110), a shock-proof plate (120), a base (130) and a shock-proof table (140); the shockproof plate (120) is positioned between the substrate (110) and the base (130), and the substrate (110) is fixed on the shockproof plate (120) through a shockproof bracket (150); the shockproof plate (120) is connected with the base (130) through a plurality of first springs (160), one end of each first spring (160) is abutted against the shockproof plate (120), and the other end of each first spring is abutted against the base (130);

the shockproof platform (140) comprises shockproof upright columns (141) and a shockproof cross beam (142), the shockproof cross beam (142) is arranged above the shockproof plate (120), and one end of the shockproof cross beam is fixedly connected with the shockproof upright columns (141); the base (130) is further provided with a shockproof bolt (143), the shockproof beam (142) is provided with a shockproof through hole (1421) for the shockproof bolt (143) to pass through, one end of the shockproof bolt (143) is fixed on the base (130), and the other end of the shockproof bolt passes through the shockproof through hole (1421); the shockproof device also comprises a shockproof nut (144) which is arranged above the shockproof cross beam (142) and is matched with the shockproof bolt (143); one end of the shockproof cross beam (142) fixed with the shockproof upright post (141) is in a slope shape, the upper surface of the shockproof cross beam is horizontal, and the lower surface of the shockproof cross beam is in a slope shape; the side surface of the shockproof upright post (141) is provided with a groove matched with the end part shape of the shockproof cross beam (142), and the horizontal height of the upper surface of the groove is greater than that of the shockproof cross beam (142); the anti-vibration device is characterized by further comprising a second spring (145), wherein the second spring (145) is arranged between the base (130) and the anti-vibration cross beam (142), one end of the second spring (145) is abutted against the base (130), and the other end of the second spring is abutted against the anti-vibration cross beam (142); the second spring (145) is sleeved on the shockproof bolt (143); the length of the second spring (145) is 1.2 times that of the first spring (160).

4. The mortar mixing device according to claim 1, wherein a speed reducer (310) is further provided between the output end of the mixing motor (300) and the upper end of the mixing shaft (211).

5. The mortar mixing device according to claim 1, wherein the discharging bin (220) is further provided with a discharging boosting structure, the discharging boosting structure comprises a discharging shaft (221) and a helical blade (222), and the helical blade (222) is arranged on the discharging shaft (221) and is arranged along the axial direction of the discharging shaft (221); one end of the discharging shaft (221) points to the discharging opening (202), the other end of the discharging shaft penetrates through the side wall of the discharging bin (220) to be connected with the output end of an external discharging motor (223), and the discharging motor (223) drives the discharging shaft (221) to rotate around a shaft.

6. The mortar mixing device according to claim 1, wherein the partition plate (230) is formed by splicing a laminate (231) fixed on the side wall of the tank body (200) and an openable discharge valve (232), a discharge through hole for the mortar after mixing to pass through is formed in the middle of the laminate (231), and the discharge valve (232) is matched with the discharge through hole in shape and size; the outlet valve (232) is connected to the layer plate (231) via a hinge (234).

7. The mortar stirring device according to claim 6, further comprising a discharging cylinder (233) for assisting the opening and closing of the discharging valve (232), wherein a cylinder mounting seat (235) is arranged on one side surface of the layer plate (231), the telescopic end of the discharging cylinder (233) is connected to the discharging valve (232), and the other end of the discharging cylinder is fixed to the cylinder mounting seat (235).