White liquor brewing distiller's grains in and out of pit grab bucket

By designing a grab bucket for the fermentation mash to enter and exit the pit, and adopting an electromagnet and spring structure that combines a receiving plate and a pallet, the leakage problem during the fermentation mash exiting the pit was solved, improving the exit efficiency, protecting the pit, and reducing the risk of equipment damage.

CN117003113BActive Publication Date: 2026-05-15SICHUAN ACAD OF FOOD & FERMENTATION INDS
View PDF 3 Cites 0 Cited by

Patent Information

Application Number
CN202310771416.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-06-28
Publication Date
2026-05-15
Estimated Expiration
2043-06-28

AI Technical Summary

Technical Problem

In the current process of brewing baijiu, the equipment for removing mash from the fermentation pit has the problem of mash leakage, and the traditional receiving plate is not effective in digging, resulting in damage to the fermentation pit and low efficiency.

Method used

A grab bucket for handling lees in and out of the fermentation pit for baijiu brewing was designed. It uses a receiving plate and a tray in combination, and the claw hook is blocked by an electromagnet and spring structure. Combined with a pressure sensor and a drive component, it ensures that there is no leakage during the lees digging process, and the equipment is protected by a protective cover.

Benefits of technology

This effectively prevents leakage of the mash during the extraction process, improves the efficiency of removing the mash from the pit, protects the pit, and reduces the intensity of manual labor and the risk of equipment damage.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN117003113B_ABST
    Figure CN117003113B_ABST
Patent Text Reader

Abstract

The application discloses a grab bucket for taking out and putting in pit of distiller's grains for brewing liquor, which comprises a receiving barrel, two receiving plates installed on the bottom of the receiving barrel through pivots, and a claw hook formed on the side of each receiving plate close to the other. In the application, the claw hook is fixed on the end of the receiving plate to facilitate the digging of the distiller's grains. When the receiving plate digs the distiller's grains, the motor is turned on, the screw rod rotates, the tooth block moves, and the digging process is specifically divided into two steps. In the first step, the tooth block is engaged with the gear, the screw sleeve rotates, the screw rod moves upward, and the receiving plate is turned upward to complete the digging action. In the second step, after the tooth block is separated from the gear, the push rod is separated from the pressure sensor with the continuous movement of the tooth block, the power supply to the electromagnet is stopped, the connecting arm drives the supporting plate to slide under the action of the spring one, the side ear is butt-jointed with the two groups of protrusions, and the supporting plate is supported on the bottom of the rotating plate, so that the leakage of the distiller's grains through the gap of the claw hook is avoided.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of brewing technology, and in particular to a grab bucket for loading and unloading mash in baijiu brewing. Background Technology

[0002] Baijiu (Chinese liquor) is mainly classified into three aroma types based on market share: strong aroma, sauce aroma, and light aroma. Light aroma baijiu is fermented in earthen vats, while strong aroma and sauce aroma baijiu are fermented in fermentation pits. A fermentation pit is a rectangular container, and different types of mud are used for the bottom and walls of the pit depending on the specific production process required for strong aroma and sauce aroma baijiu.

[0003] To avoid damage to the fermentation pits during the process of excavating the mash, the prior art discloses a mash removal device with application number 202110891802.6. This device uses a vision system to precisely control the movement of the excavating device, avoiding collisions between the excavating device and the pit walls and mud. This solves the problems of high labor intensity, high cost of cranes, low efficiency of mash removal, and easy damage to the fermentation pits during traditional brewing processes.

[0004] The device involves a material-digging device including a material-collecting bucket and a material-collecting plate hinged to the bottom of the bucket. The material-collecting plate rotates to dig out the mash. The end of the material-collecting plate is flat. In actual operation, compared with the design with claw hooks, the digging effect is not as good. However, the design with claw hooks may cause the mash to leak. Based on this, a mash loading and unloading grab bucket for baijiu brewing is proposed. Summary of the Invention

[0005] The purpose of this invention is to solve the above-mentioned problems by proposing a grab bucket for the fermentation of baijiu (Chinese liquor) in a fermentation pit.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] The lees feeding bucket used in Baijiu brewing includes a receiving bucket and two receiving plates installed at the bottom of the receiving bucket via a rotating shaft. The two receiving plates are each formed with claw hooks on the side that is close to each other.

[0008] One of the receiving plates has a cover plate and a horizontally movable support plate installed at its bottom. The cover plate is equipped with a controller and a power supply unit. The other receiving plate has a stop block that abuts against the support plate. The support plate has a side ear, and the inner wall of the side ear is formed with a guide groove. The outer walls of both receiving plates have protrusions that match the guide grooves.

[0009] A sleeve is fixed on the receiving plate. One end of the sleeve has a connecting arm that is fixed to the pallet, and the other end is equipped with an electromagnet. A spring and a magnet that attracts the electromagnet are provided inside the sleeve.

[0010] Both receiving plates are fixed with fixing blocks, and the fixing blocks are formed with sliding grooves. The top of the receiving hopper is equipped with a screw sleeve, and a vertical screw rod passes through the screw sleeve. A movable pin that passes through the sliding groove is fixed at the bottom end of the screw rod.

[0011] The top of the receiving hopper is equipped with a pressure sensor and an elastic telescopic rod. The top of the receiving hopper is also equipped with a driving component that drives the screw sleeve to rotate, causing the elastic telescopic rod to abut against the pressure sensor.

[0012] Preferably, the driving component includes a toothed block fixed to the elastic telescopic rod and a power component for driving the toothed block to move longitudinally. The top of the receiving hopper is equipped with a connecting shaft that drives the screw sleeve, and a gear that meshes with the toothed block is fixed on the connecting shaft.

[0013] Preferably, the power assembly includes a bearing seat mounted on the top of the receiving hopper, on which a lead screw passing through the toothed block and a motor driving the lead screw to rotate are mounted.

[0014] Preferably, the threaded sleeve and the connecting shaft rotate synchronously through a first pulley, a second pulley, and a transmission belt.

[0015] Preferably, the elastic telescopic rod includes a second sleeve fixed on the toothed block, a push rod passing through the end of the second sleeve, and a second spring and a slider fixed to the push rod are provided inside the second sleeve.

[0016] Preferably, a protective cover is fixed to the top of the receiving hopper.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0018] 1. In this application, the end of the receiving plate is fixed with a claw hook to facilitate the digging of the mash. When the receiving plate digs the mash, the motor is turned on, the screw rotates, and the toothed block moves. The digging process is divided into two parts: First, when the toothed block meshes with the gear, the screw sleeve rotates, the screw moves upward, and the receiving plate flips upward to complete the digging action; Second, after the toothed block separates from the gear, as the toothed block continues to move, the push rod separates from the pressure sensor, the power supply to the electromagnet stops, and under the action of the spring, the connecting arm drives the support plate to slide, so that the side ear docks with the two sets of protrusions, and the support plate is supported on the bottom of the rotating plate, which can prevent the mash from leaking through the gap of the claw hook.

[0019] 2. In this application, a protective cover is fixed to the top of the receiving hopper. The protective cover is used to protect the various structures on the top of the receiving hopper to avoid collisions with other foreign objects. Attached Figure Description

[0020] Figure 1 A schematic diagram of a grab bucket structure provided according to an embodiment of the present invention is shown;

[0021] Figure 2 The present invention provides an embodiment of the invention. Figure 1 A partial enlarged view of the structure of section A;

[0022] Figure 3 A schematic diagram of the bottom structure of the receiving bin according to an embodiment of the present invention is shown;

[0023] Figure 4 A schematic diagram of a receiving plate, pallet, and sleeve provided according to an embodiment of the present invention is shown;

[0024] Figure 5 A schematic diagram of the internal structure of sleeve two provided according to an embodiment of the present invention is shown.

[0025] Legend:

[0026] 1. Receiving bin; 2. Motor; 3. Gear block; 4. Screw sleeve; 5. Screw; 6. Receiving plate; 7. Moving pin; 8. Slide groove; 9. Fixing block; 10. Protective cover; 11. Shaft seat; 12. Connecting shaft; 13. Gear; 14. Transmission belt; 15. Lead screw; 16. Pressure sensor; 17. Pulley 1; 18. Pulley 2; 19. Rotating shaft; 20. Controller; 21. Power supply unit; 22. Cover plate; 23. Support plate; 24. Stop block; 25. Guide groove; 26. Side ear; 27. Protrusion; 28. Claw hook; 29. ​​Electromagnet; 30. Magnet; 31. Connecting arm; 32. Spring 1; 33. Sleeve 1; 34. Slider; 35. Sleeve 2; 36. Spring 2; 37. Push rod. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figure 1-5 The present invention provides a technical solution:

[0029] The baijiu brewing mash loading and unloading grab bucket includes a receiving bucket 1 and two receiving plates 6 installed at the bottom of the receiving bucket 1 via a rotating shaft 19. The receiving bucket 1 is mounted on a robotic arm, which is used to move the receiving bucket 1 in both the horizontal and vertical directions. The receiving plates 6 can rotate around the rotating shaft 19 to scoop up the mash. When the two receiving plates 6 are rotated to a horizontal position, they can be used to store the scooped mash. The two receiving plates 6 are each formed with claw hooks 28 on the side that is close to each other. The claw hooks 28 can facilitate the scooping of mash by the receiving plates 6. The two sets of claw hooks 28 can be staggered to reduce gaps.

[0030] One of the receiving plates 6 has a cover plate 22 and a horizontally movable support plate 23 installed at its bottom. The cover plate 22 is fixed to the receiving plate 6 with bolts. A controller 20 and a power supply unit 21 are installed on the cover plate 22. The controller 20 and the power supply unit 21 are placed in the sealed cavity of the cover plate 22. The controller 20 is a programmable microcontroller. Both the controller 20 and the power supply unit 21 are direct references to existing technologies. Side ears 26 are fixed on the support plate 23. The side ears 26 are distributed at the front and rear ends of the support plate 23. The inner wall of the side ears 26 is formed with guide grooves 25. Both receiving plates 6 have protrusions 27 on their outer walls that are adapted to the guide grooves 25. The guide grooves 25 and the two sets of protrusions 27 are in sliding fit. When the guide grooves 25 and the two sets of protrusions 27 are connected, they limit the two receiving plates 6. The two receiving plates 6 can better support the mash in the receiving bucket 1. Moreover, the support plate 23 blocks the connection of the two sets of claw hooks 28 to prevent the mash from leaking through the gaps of the claw hooks 28. The other receiving plate 6 is fixed with a stop block 24 that abuts against the support plate 23. The stop block 24 is used to position the support plate 23 and prevent the support plate 23 from slipping.

[0031] A sleeve 33 is fixed on the receiving plate 6. One end of the sleeve 33 has a connecting arm 31 fixed to the pallet 23. The connecting arm 31 is used to drive the pallet 23 to move. The connecting arm 31 and the sleeve 33 are in sliding fit. An electromagnet 29 is installed at the other end of the sleeve 33. The power supply unit 21 is electrically connected to the electromagnet 29. The power supply unit 21 is used to supply power to the electromagnet 29. A spring 32 and a magnet 30 attracted to the electromagnet 29 are provided inside the sleeve 33. The spring 32 is sleeved on the outside of the connecting arm 31. The two ends of the spring 32 are fixed to the inner wall of the sleeve 33 and the magnet 30, respectively. The spring 32 gives the magnet 30 a pulling force. Under the action of the spring 32, the connecting arm 31 pushes the pallet 23 to connect the side lug 26 with the two sets of protrusions 27.

[0032] Both receiving plates 6 are fixed with fixing blocks 9, and the fixing blocks 9 are formed with grooves 8. The grooves 8 are horizontally distributed elongated strips. The top of the receiving bucket 1 is equipped with a screw sleeve 4. The receiving bucket 1 and the screw sleeve 4 are rotatably connected by a bearing. A vertical screw rod 5 passes through the screw sleeve 4. A movable pin 7 that passes through the groove 8 is fixed at the bottom of the screw rod 5. The movable pin 7 and the groove 8 are in sliding fit. The end of the movable pin 7 is formed with a flange. The diameter of the flange is larger than the diameter of the movable pin 7 to prevent the movable pin 7 from separating from the groove 8. During the rotation of the screw sleeve 4, the screw rod 5 moves in the vertical direction. Under the action of the movable pin 7 and the groove 8, the screw rod 5 pulls the receiving plate 6, so that the receiving plate 6 rotates around the rotating shaft 19.

[0033] The top of the receiving hopper 1 is provided with a pressure sensor 16 and an elastic telescopic rod. The output end of the pressure sensor 16 is electrically connected to the input end of the controller 20, and the output end of the controller 20 is electrically connected to the input end of the power supply unit 21. The above connection relationship is a direct reference to the prior art. The top of the receiving hopper 1 is provided with a driving component that drives the screw sleeve 4 to rotate and causes the elastic telescopic rod to abut against the pressure sensor 16.

[0034] Specifically, such as Figure 1 and Figure 2 As shown, the driving component includes a toothed block 3 fixed to the elastic telescopic rod and a power component that drives the toothed block 3 to move longitudinally. The toothed block 3 is slidably connected to the top of the receiving bucket 1 via a guide rail. The top of the receiving bucket 1 is equipped with a connecting shaft 12 that drives the screw sleeve 4. The connecting shaft 12 is rotatably connected to the receiving bucket 1 via a bearing. The screw sleeve 4 and the connecting shaft 12 rotate synchronously via a pulley 17, a pulley 18 and a transmission belt 14. The pulley 17 is fixed on the connecting shaft 12, the pulley 18 is fixed on the screw sleeve 4, and the transmission belt 14 is installed between the pulley 17 and the pulley 18. A gear 13 that meshes with the toothed block 3 is fixed on the connecting shaft 12. When the toothed block 3 meshes with the gear 13, the gear 13 can drive the connecting shaft 12 to rotate. Under the action of the pulley 17, the pulley 18 and the transmission belt 14, the screw sleeve 4 rotates.

[0035] The power assembly includes a bearing seat 11 mounted on the top of the receiving hopper 1. A lead screw 15 passing through the toothed block 3 is mounted on the bearing seat 11, and a motor 2 drives the lead screw 15 to rotate. The lead screw 15 and the bearing seat 11 are rotatably connected by bearings. The lead screw 15 and the toothed block 3 are screwed together. During the process of the motor 2 driving the lead screw 15 to rotate, the toothed block 3 can move along the axial direction of the lead screw 15.

[0036] Specifically, such as Figure 5As shown, the elastic telescopic rod includes a sleeve 35 fixed on the toothed block 3. A push rod 37 passes through the end of the sleeve 35. The push rod 37 and the sleeve 35 are in sliding fit. The sleeve 35 is provided with a spring 36 and a slider 34 fixed to the push rod 37. The two ends of the spring 36 abut against the inner wall of the sleeve 35 and the slider 34 respectively. The spring 36 provides a pushing force to the slider 34 and the push rod 37. When the push rod 37 abuts against the pressure sensor 16, the spring 36 is compressed as the toothed block 3 moves.

[0037] Specifically, such as Figure 1 As shown, a protective cover 10 is fixed to the top of the receiving hopper 1 by bolts. The protective cover 10 is used to protect the various structures on the top of the receiving hopper 1 to avoid collisions with other foreign objects.

[0038] In summary, the method provided in this embodiment for scooping out the fermented mash is as follows: Figure 1 Taking the state as an example, when the two receiving plates 6 are in a horizontal state, under the action of spring 32, the support plate 23 abuts against the stop block 24, and the side ear 26 connects with the protrusion 27 on the two receiving plates 6, sealing the connection between the two receiving plates 6, which can prevent the mash from leaking through the gap of the claw hook 28.

[0039] During excavation, motor 2 is turned on, and the output end of motor 2 drives the lead screw 15 to rotate. The toothed block 3 moves along the axial direction of the lead screw 15. This process is divided into two parts:

[0040] First, the toothed block 3 drives the entire elastic telescopic rod to move. The end of the push rod 37 first comes into contact with the pressure sensor 16. After the pressure sensor 16 is pressed, it transmits the signal to the controller 20. The controller 20 controls the power supply unit 21 to provide power to the electromagnet 29. After the electromagnet 29 is energized, it attracts the magnet 30. The magnet 30 drives the connecting arm 31 and the support plate 23 to overcome the elastic force of the spring 32 and retract, so that the side ear 26 separates from one of the protrusions 27, so as to facilitate the normal rotation of the two receiving plates 6.

[0041] Secondly, as the motor 2 continues to rotate, the tooth block 3 moves. When the tooth block 3 meshes with the gear 13, the gear 13 drives the connecting shaft 12 to rotate. Under the action of the pulley 17, the pulley 28 and the transmission belt 14, the screw sleeve 4 rotates, and the screw 5 drives the moving pin 7 to move downward. During the movement of the moving pin 7 in the slide 8, the receiving plate 6 rotates around the rotating shaft 19. The two receiving plates 6 drive the claw hook 28 to open to carry out the dregs digging operation.

[0042] The above description of the embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A grab bucket for feeding and unloading mash used in Baijiu brewing, comprising a receiving bucket (1) and two receiving plates (6) installed at the bottom of the receiving bucket (1) via a rotating shaft (19), characterized in that, Both of the receiving plates (6) have claw hooks (28) formed on the side that is close to each other; One of the receiving plates (6) has a cover plate (22) and a horizontally movable support plate (23) installed at its bottom. The cover plate (22) is equipped with a controller (20) and a power supply unit (21). The other receiving plate (6) has a stop block (24) fixed on it that abuts against the support plate (23). The support plate (23) has a side ear (26) fixed on it, and the inner wall of the side ear (26) is formed with a guide groove (25). Both receiving plates (6) have protrusions (27) on their outer walls that are adapted to the guide grooves (25). A sleeve (33) is fixed on the receiving plate (6). One end of the sleeve (33) has a connecting arm (31) that is fixed to the support plate (23) and the other end is equipped with an electromagnet (29). The sleeve (33) contains a spring (32) and a magnet (30) that attracts the electromagnet (29). Both of the receiving plates (6) are fixed with fixing blocks (9), and the fixing blocks (9) are formed with grooves (8). The top of the receiving bucket (1) is fitted with a screw sleeve (4), and a vertical screw rod (5) passes through the screw sleeve (4). The bottom end of the screw rod (5) is fixed with a movable pin (7) that passes through the groove (8). The top of the receiving hopper (1) is provided with a pressure sensor (16) and an elastic telescopic rod. The top of the receiving hopper (1) is provided with a driving component that drives the screw sleeve (4) to rotate and causes the elastic telescopic rod to abut against the pressure sensor (16).

2. The grab bucket for feeding and unloading mash used in Baijiu brewing according to claim 1, characterized in that, The driving component includes a toothed block (3) fixed to the elastic telescopic rod and a power component for driving the toothed block (3) to move longitudinally. The top of the receiving hopper (1) is equipped with a connecting shaft (12) that drives the screw sleeve (4). A gear (13) that meshes with the toothed block (3) is fixed on the connecting shaft (12).

3. The grab bucket for feeding and unloading mash used in Baijiu brewing according to claim 2, characterized in that, The power assembly includes a bearing seat (11) mounted on the top of the receiving hopper (1), on which a lead screw (15) passing through the toothed block (3) and a motor (2) driving the lead screw (15) to rotate are mounted.

4. The grab bucket for feeding and unloading mash used in Baijiu brewing according to claim 3, characterized in that, The threaded sleeve (4) and the connecting shaft (12) rotate synchronously through pulley one (17), pulley two (18) and transmission belt (14).

5. The grab bucket for feeding and unloading mash used in Baijiu brewing according to claim 4, characterized in that, The elastic telescopic rod includes a sleeve two (35) fixed on the tooth block (3), a push rod (37) passing through the end of the sleeve two (35), and a spring two (36) and a slider (34) fixed to the push rod (37) are provided inside the sleeve two (35).

6. The grab bucket for feeding and unloading mash used in Baijiu brewing according to claim 5, characterized in that, The top of the receiving hopper (1) is fixed with a protective cover (10).