Weighing method for automatic quantitative batching and feed batching scale

Abstract

The invention relates to the field of weighing facilities, in particular to an automatic quantitative batching weighing method and a feed batching scale, the feed batching scale comprises a scale seat and a weighing hopper arranged in the scale seat, a feeding pipe is arranged in the weighing hopper, the lower portion of the feeding pipe is arranged in a multi-section bending mode, a fixing frame is fixedly installed on the side face of the feeding pipe, and the fixing frame is fixedly connected with the weighing hopper. A shaft frame is fixedly installed on the side face of the fixing frame, a first shaft body is rotatably installed on the upper portion of the side face of the shaft frame in a penetrating mode, a lifting gear is coaxially embedded in the end of the first shaft body, the rear end of the lifting gear is meshed with a toothed plate, the toothed plate is connected with the weighing base, and a pipe knocking piece is installed at the front end of the fixing frame. And a driving part is mounted at the front part of the shaft bracket. According to the invention, the weighing precision is improved, and normal falling of feed raw materials is ensured.

Description

Technical Field

[0001] The invention relates to the field of weighing facilities, and in particular to a weighing method for automatic quantitative batching and a feed batching scale. Background Art

[0002] Feed is a general term for food for animals raised by all people. In a narrower sense, feed generally refers to food for animals raised in agriculture or animal husbandry, including more than ten varieties of feed raw materials such as soybeans, soybean meal, corn, fish meal, amino acids, miscellaneous meal, whey powder, meat and bone meal, grains, and feed additives.

[0003] During the process of feed processing and ingredient preparation, some raw materials are often weighed to ensure that they can meet the required feed ratio. During weighing, the feed raw materials are sent into the weighing bucket through the screw conveyor. At this time, the weighing sensor transmits the weight of the feed raw materials weighed in the weighing bucket to the controller in real time. When the set weight of the controller is reached, the controller controls the screw conveyor to close, and opens the weighing bucket to discharge the weighed feed raw materials. In this process, since there is a certain height difference between the discharge port of the screw conveyor and the bottom of the weighing bucket, the feed raw materials will fall a certain height after being discharged from the discharge port of the screw conveyor before falling to the bottom of the weighing bucket. This phenomenon causes the feed raw materials that have been discharged from the discharge port to continue to fall into the weighing bucket when the screw conveyor is closed after the weight reaches the standard, resulting in the weight after weighing being inaccurate. At the same time, the feed raw materials will produce a certain impact when falling, resulting in a large jump in the value during weighing, which causes the controller to sense incorrectly and issue an instruction to stop the feed raw material transportation too early, resulting in the feed raw materials after weighing failing to reach the set weight, seriously affecting the weighing accuracy. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the background technology and to propose an automatic quantitative batching weighing method and a feed batching scale.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: a feed ingredient scale, including a weighing base and a weighing bucket arranged in the weighing base, a feed pipe is arranged inside the weighing bucket, the lower part of the feed pipe is bent in multiple sections, a fixing frame is fixedly installed on the side of the feed pipe, an axle frame is fixedly installed on the side of the fixing frame, a No. 1 shaft body is rotatably installed through the upper part of the side of the axle frame, a lifting gear is coaxially inlaid on the end of the No. 1 shaft body, a tooth plate is meshed with the rear end of the lifting gear, the tooth plate is connected to the weighing base, a knocking pipe fitting is installed at the front end of the fixing frame, and a driving member is installed at the front of the axle frame.

[0006] Preferably, an extension frame is fixedly installed at the rear edge of the upper end of the weighing base, a weighing sensor is fixedly installed at the lower end of the extension frame, the weighing end of the weighing sensor is connected to the weighing bucket, a controller is installed at the front end of the weighing base, a No. 2 servo motor is fixedly installed at the end of the feed pipe, a pipe cover is fixedly installed at the output end of the No. 2 servo motor, and the pipe cover is tightly attached to the pipe mouth of the feed pipe.

[0007] Preferably, a T-shaped slider is fixedly installed on the rear end of the fixed frame, a guide seat is fixedly installed on the upper end of the extending frame, the T-shaped slider is slidably installed inside the guide seat, a vertical frame is fixedly installed on the rear end of the tooth plate, the end of the vertical frame is fixed to the scale seat, a sealing plate is slidably installed on the lower end of the weighing bucket, a servo push cylinder is fixedly installed on the rear end of the weighing bucket, and the output end of the servo push cylinder is fixed to the sealing plate.

[0008] Preferably, the pipe knocking member includes a rod seat fixedly mounted on the front end of the fixing frame, a rotating rod is rotatably mounted on the rear end of the rod seat, a V-shaped frame is inlaid on the lower part of the rotating rod, and knocking heads are inlaid through both ends of the V-shaped frame, and the knocking heads correspond to the bends of the feed pipe.

[0009] Preferably, a transmission shaft is rotatably mounted on the front end of the fixing frame, the transmission shaft is located on the side of the rod seat, a swing ear is extended at the upper edge of the outer surface of the rotating rod, an ear connecting frame is rotatably mounted on the end of the swing ear, a rotating ear is extended at the upper edge of the outer surface of the transmission shaft, and the end of the ear connecting frame is rotatably connected to the end of the rotating ear.

[0010] Preferably, the driving component includes a driving shaft rotatably mounted on the front end of the shaft frame, the end of the driving shaft and the lower end of the transmission shaft are coaxially inlaid with bevel gears, the two bevel gears are meshed, a motor frame is fixedly mounted on the front end of the shaft frame, a servo motor No. 1 is fixedly mounted on the end of the motor frame, the output end of the servo motor No. 1 is fixed to the driving shaft, and the driving shaft is connected to the No. 1 shaft body.

[0011] Preferably, a No. 2 small gear is coaxially inlaid on the outer surface of the driving shaft, a No. 2 shaft body is arranged below the No. 1 shaft body, the No. 2 shaft body is rotatably mounted on the shaft frame, a No. 1 small gear is coaxially inlaid on the end of the No. 2 shaft body, a No. 1 large gear is coaxially inlaid on the outer surface of the No. 1 shaft body, the No. 1 large gear is meshed with the No. 1 small gear, and a No. 2 large gear is coaxially inlaid on the outer surface of the No. 2 shaft body, the No. 2 large gear is meshed with the No. 2 small gear.

[0012] A weighing method for automatic quantitative batching is also provided, comprising the following steps:

[0013] S1: The screw conveyor delivers the feed raw materials into the feed pipe, and the feed raw materials are guided by the feed pipe and fall into the weighing bucket;

[0014] S2: Then the No. 1 servo motor drives the lifting gear on the No. 1 shaft to slowly roll on the gear plate to drive the feed pipe to slowly move up. At the same time, the No. 1 servo motor also drives the knocking head on the V-shaped frame to continuously knock the feed pipe, so that the feed raw materials in the feed pipe fall normally;

[0015] S3: The weighing sensor transmits the weight of the feed raw materials weighed in the weighing bucket to the controller in real time. When the weight set by the controller is reached, the controller controls the No. 1 servo motor to stop working. At the same time, the controller also controls the No. 2 servo motor and the servo push cylinder to drive the pipe cover to seal the feed pipe and drive the sealing plate to slide to open the weighing bucket, so that the weighed feed raw materials can be discharged, completing automatic quantitative weighing.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. Through the feed pipe, the feed pipe can be extended into the weighing bucket for feeding, so as to reduce the height difference during feeding. When the weight of the feed raw materials reaches the standard, the feed raw materials can stop falling in time after the pipe cover closes the feed pipe, so as to avoid inaccurate weight of the feed raw materials after weighing, thereby improving the weighing accuracy. At the same time, under the effect of multiple bends in the lower part of the feed pipe, the impact of the feed raw materials falling can be reduced, thereby avoiding large fluctuations in the value during weighing, thereby further improving the weighing accuracy.

[0018] 2. The rotating drive shaft can drive the rotating ear on the transmission shaft to rotate through the bevel gear, and then drive the ear frame to move, so as to push the swing ear, so that the V-shaped frame on the rotating rod can continuously swing back and forth, and then drive the knocking head to swing back and forth, so as to continuously knock on the curved section of the feed pipe, so as to avoid the feed raw materials from accumulating in the curved section of the feed pipe, so as to ensure the normal falling of the feed raw materials. At the same time, the rotating drive shaft will also drive the No. 2 shaft body to rotate slowly through the No. 2 small gear and the No. 2 large gear, so that the rotating No. 2 shaft body drives the lifting gear on the No. 1 shaft body to rotate slowly through the No. 1 small gear and the No. 1 large gear, and rolls on the toothed plate to drive the feed pipe to move up slowly, that is, the end of the feed pipe can move up synchronously with the upward movement of the height of the feed raw materials in the weighing bucket, so as to avoid the feed raw materials in the weighing bucket submerging the pipe mouth of the feed pipe and affecting the falling of the feed raw materials, so as to further ensure the normal falling of the feed raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the feed batching scale of the present invention;

[0020] Figure 2 It is an internal view of the weighing hopper of the feed batching scale of the present invention;

[0021] Figure 3 It is a schematic diagram of the rotating rod of the feed batching scale of the present invention;

[0022] Figure 4 This is a schematic diagram of the No. 1 large gear of the feed batching scale of the present invention;

[0023] Figure 5 It is a schematic diagram of the second servo motor of the feed batching scale of the present invention;

[0024] Figure 6 For the feed ingredient scale of the present invention Figure 2 A magnified view of middle;

[0025] Figure 7 It is a schematic diagram of the servo push cylinder of the feed batching scale of the present invention.

[0026] In the figure: 1. weighing base; 2. weighing bucket; 3. controller; 4. extension frame; 5. feed pipe; 6. weighing sensor; 7. guide seat; 8. No. 1 large gear; 9. No. 1 servo motor; 10. tooth plate; 11. fixed frame; 12. rotating rod; 13. rod seat; 14. servo push cylinder; 15. No. 2 servo motor; 16. sealing plate; 17. lifting gear; 18. No. 1 shaft; 19. pipe cover; 20. shaft frame; 21. No. 1 small gear; 22. No. 2 shaft; 23. No. 2 large gear; 24. driving shaft; 25. No. 2 small gear; 26. bevel gear; 27. knocking head; 28. V-shaped frame; 29. ​​swing ear; 30. connecting ear frame; 31. rotating ear; 32. transmission shaft; 33. T-shaped slider; 34. vertical frame; 35. motor frame. DETAILED DESCRIPTION

[0027] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0028] like Figure 1-Figure 7The feed batching scale shown in the figure comprises a weighing base 1 and a weighing bucket 2 arranged in the weighing base 1. A feed pipe 5 is arranged inside the weighing bucket 2. The feed pipe 5 can reduce the height difference of feeding. The lower part of the feed pipe 5 is bent in multiple sections, which can reduce the impact of the feed falling and avoid large fluctuations in the value during weighing. A fixing frame 11 is fixedly installed on the side of the feed pipe 5. An axle frame 20 is fixedly installed on the side of the fixing frame 11. The fixing frame 11 plays a role in fixing the axle frame 20. A No. 1 shaft body 18 is rotatably installed on the upper part of the side of the axle frame 20. 20 serves to support the No. 1 shaft 18. A lifting gear 17 is coaxially inlaid on the end of the No. 1 shaft 18. A tooth plate 10 is meshed at the rear end of the lifting gear 17. The lifting gear 17 cooperates with the tooth plate 10 to allow the feed pipe 5 to move up slowly, that is, the end of the feed pipe 5 can move up synchronously with the increase in the height of the feed raw materials in the weighing bucket 2 to prevent the feed raw materials in the weighing bucket 2 from submerging the pipe mouth of the feed pipe 5. The tooth plate 10 is connected to the weighing base 1, a knocking pipe fitting is installed at the front end of the fixed frame 11, and a driving rotating part is installed at the front of the shaft frame 20.

[0029] An extension frame 4 is fixedly installed at the rear edge of the upper end of the weighing base 1, and a weighing sensor 6 is fixedly installed at the lower end of the extension frame 4. The extension frame 4 plays the role of carrying the weighing sensor 6. The weighing end of the weighing sensor 6 is connected to the weighing bucket 2. A controller 3 is installed at the front end of the weighing base 1. The weighing sensor 6 transmits the weight of the feed raw materials weighed in the weighing bucket 2 to the controller 3 in real time. When the weight set by the controller 3 is reached, the controller 3 controls the No. 1 servo motor 9 to stop working. At the same time, the controller 3 also controls the No. 2 servo motor 15 and the servo push cylinder 14 to work, so as to bring The movable pipe cover 19 blocks the feed pipe 5 and drives the sealing plate 16 to slide to open the weighing bucket 2, so that the weighed feed raw materials can be discharged. Since the above-mentioned reaching the set weight to control the motor through the controller 3 is a prior art and has been widely used, it is not elaborated in detail here. A No. 2 servo motor 15 is fixedly installed at the end of the feed pipe 5, and a pipe cover 19 is fixedly installed at the output end of the No. 2 servo motor 15. The No. 2 servo motor 15 can drive the pipe cover 19 to flip to block the feed pipe 5, and the pipe cover 19 is tightly attached to the pipe mouth of the feed pipe 5.

[0030] A T-shaped slider 33 is fixedly installed on the rear end of the fixed frame 11, and a guide seat 7 is fixedly installed on the upper end of the extending frame 4. The T-shaped slider 33 is slidably installed inside the guide seat 7. The T-shaped slider 33 and the guide seat 7 play a role in guiding the feed pipe 5. A vertical frame 34 is fixedly installed on the rear end of the tooth plate 10. The end of the vertical frame 34 is fixed to the scale seat 1, and the vertical frame 34 plays a role in fixing the tooth plate 10. A sealing plate 16 is slidably installed on the lower end of the weighing bucket 2. A servo push cylinder 14 is fixedly installed on the rear end of the weighing bucket 2. The servo push cylinder 14 can drive the sealing plate 16 to move to open the weighing bucket 2, and the output end of the servo push cylinder 14 is fixed to the sealing plate 16.

[0031] The pipe knocking device includes a rod seat 13 fixedly installed on the front end of the fixed frame 11, and a rotating rod 12 is rotatably installed on the rear end of the rod seat 13. The rod seat 13 plays a role in supporting the rotating rod 12. A V-shaped frame 28 is inlaid on the lower part of the rotating rod 12. Both ends of the V-shaped frame 28 are penetrated and inlaid with knocking heads 27. The V-shaped frame 28 plays a role in supporting the knocking head 27. The knocking head 27 corresponds to the bending part of the feed pipe 5, and the knocking head 27 plays a role in knocking the bending part of the feed pipe 5.

[0032] A transmission shaft 32 is rotatably installed at the front end of the fixed frame 11, and the transmission shaft 32 is located on the side of the rod seat 13. The transmission shaft 32 can drive the rotating ear 31 to rotate. A swing ear 29 is extended at the upper edge of the outer surface of the rotating rod 12, and an ear frame 30 is rotatably installed at the end of the swing ear 29. The ear frame 30 plays a role in pushing the swing ear 29. A swing ear 31 is extended at the upper edge of the outer surface of the transmission shaft 32, and the end of the ear frame 30 is rotatably connected with the end of the swing ear 31. The rotating driving shaft 24 drives the rotating ear 31 on the transmission shaft 32 to rotate through the bevel gear 26, and then drives the ear frame 30 to move to push the swing ear 29, so that the V-shaped frame 28 on the rotating rod 12 can continuously swing back and forth, thereby driving the knocking head 27 to swing back and forth, so as to continuously knock on the curved section of the feed pipe 5.

[0033] The driving member includes a driving shaft 24 rotatably mounted on the front end of the shaft frame 20, and the end of the driving shaft 24 and the lower end of the transmission shaft 32 are coaxially inlaid with a bevel gear 26, and the two bevel gears 26 are meshed with each other. The bevel gear 26 serves to connect the driving shaft 24 and the transmission shaft 32 together. A motor frame 35 is fixedly mounted on the front end of the shaft frame 20, and a servo motor 9 is fixedly mounted on the end of the motor frame 35. The motor frame 35 serves to fix the servo motor 9. The output end of the servo motor 9 is fixed to the driving shaft 24, and the driving shaft 24 is connected to the No. 1 shaft body 18, and the servo motor 9 drives the driving shaft 24 to rotate.

[0034] A second pinion gear 25 is coaxially inlaid on the outer surface of the driving shaft 24. A second shaft body 22 is arranged below the first shaft body 18. The second shaft body 22 is rotatably mounted on the shaft frame 20. A first pinion gear 21 is coaxially inlaid on the end of the second shaft body 22. The second shaft body 22 serves to carry the first pinion gear 21 and the second large gear 23. A first large gear 8 is coaxially inlaid on the outer surface of the first shaft body 18. The first large gear 8 is meshed with the first pinion gear 21. The first large gear 8 and the first pinion gear 21 serve as a reduction transmission. A second large gear 23 is coaxially inlaid on the outer surface of the second shaft body 22. The second large gear 23 is meshed with the second pinion gear 25. The second large gear 23 and the second pinion gear 25 serve as a reduction transmission.

[0035] A weighing method for automatic quantitative batching is also provided, comprising the following steps:

[0036] S1: The screw conveyor feeds the feed material into the feed pipe 5, so that the feed material falls into the weighing bucket 2 under the guidance of the feed pipe 5;

[0037] S2: Then the first servo motor 9 drives the lifting gear 17 on the first shaft 18 to slowly roll on the gear plate 10 to drive the feeding pipe 5 to slowly move upward. At the same time, the first servo motor 9 also drives the knocking head 27 on the V-shaped frame 28 to continuously knock the feeding pipe 5, so that the feed material in the feeding pipe 5 falls normally;

[0038] S3: The weighing sensor 6 transmits the weight of the feed raw materials weighed in the weighing bucket 2 to the controller 3 in real time. When the weight set by the controller 3 is reached, the controller 3 controls the No. 1 servo motor 9 to stop working. At the same time, the controller 3 also controls the No. 2 servo motor 15 and the servo push cylinder 14 to work, so as to drive the pipe cover 19 to seal the feed pipe 5 and drive the sealing plate 16 to slide to open the weighing bucket 2, so that the weighed feed raw materials can be discharged, thereby completing automatic quantitative weighing.

[0039] During weighing, the feed raw materials fall from the screw conveyor into the feed pipe 5, so that the feed raw materials are sent into the inside of the weighing bucket 2 under the action of the feed pipe 5. In this process, the No. 1 servo motor 9 drives the driving shaft 24 to rotate, so that the rotating ear 31 on the transmission shaft 32 is driven to rotate through the rotating driving shaft 24 through the bevel gear 26, and then the ear frame 30 is driven to move, so as to push the swing ear 29, so that the V-shaped frame 28 on the rotating rod 12 can continuously swing back and forth, and then drive the knocking head 27 to swing back and forth, so as to continuously knock on the curved section of the feeding pipe 5, so as to avoid the feed raw materials from accumulating at the curved section of the feeding pipe 5. At the same time, the rotating driving shaft 24 will also drive the No. 2 shaft body 22 to rotate slowly through the No. 2 small gear 25 and the No. 2 large gear 23, so that the rotating No. 2 shaft body 22 passes The first small gear 21 and the first large gear 8 drive the lifting gear 17 on the first shaft 18 to rotate slowly and roll on the tooth plate 10 to drive the feed pipe 5 to move up slowly, that is, the end of the feed pipe 5 can move up synchronously with the upward movement of the feed raw material height in the weighing bucket 2 to avoid the feed raw material in the weighing bucket 2 from flooding the pipe mouth of the feed pipe 5. At the same time, the weighing sensor 6 transmits the weight of the feed raw material weighed in the weighing bucket 2 to the controller 3 in real time. When the weight set by the controller 3 is reached, the controller 3 controls the first servo motor 9 to stop working. At the same time, the controller 3 also controls the second servo motor 15 and the servo push cylinder 14 to work, so as to drive the pipe cover 19 to block the feed pipe 5 and drive the sealing plate 16 to slide to open the weighing bucket 2, so that the weighed feed raw materials can be discharged, and the automatic quantitative weighing is completed.

[0040] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A feed batching scale, comprising a weighing base (1) and a weighing bucket (2) arranged in the weighing base (1), characterized in that: A feed pipe (5) is arranged inside the weighing bucket (2), and the lower part of the feed pipe (5) is bent in multiple sections. A fixing frame (11) is fixedly installed on the side of the feed pipe (5), and an axle frame (20) is fixedly installed on the side of the fixing frame (11). A first shaft body (18) is rotatably installed through the upper part of the side of the axle frame (20), and a lifting gear (17) is coaxially embedded at the end of the first shaft body (18). The rear end of the lifting gear (17) is meshed with a tooth plate (10), and the tooth plate (10) is connected to the weighing base (1). A knocking pipe fitting is installed at the front end of the fixing frame (11), and a driving member is installed at the front of the axle frame (20).

2. The feed batching scale according to claim 1, characterized in that: An extension frame (4) is fixedly mounted at the rear edge of the upper end of the weighing base (1), a weighing sensor (6) is fixedly mounted at the lower end of the extension frame (4), the weighing end of the weighing sensor (6) is connected to the weighing bucket (2), a controller (3) is mounted at the front end of the weighing base (1), a No. 2 servo motor (15) is fixedly mounted at the end of the feed pipe (5), a pipe cover (19) is fixedly mounted at the output end of the No. 2 servo motor (15), and the pipe cover (19) is tightly attached to the pipe mouth of the feed pipe (5).

3. The feed batching scale according to claim 2, characterized in that: A T-shaped slider (33) is fixedly installed at the rear end of the fixed frame (11), a guide seat (7) is fixedly installed at the upper end of the extending frame (4), and the T-shaped slider (33) is slidably installed inside the guide seat (7). A vertical frame (34) is fixedly installed at the rear end of the toothed plate (10), and the end of the vertical frame (34) is fixed to the weighing seat (1). A sealing plate (16) is slidably installed at the lower end of the weighing bucket (2), and a servo push cylinder (14) is fixedly installed at the rear end of the weighing bucket (2), and the output end of the servo push cylinder (14) is fixed to the sealing plate (16).

4. The feed batching scale according to claim 3, characterized in that: The pipe knocking member comprises a rod seat (13) fixedly mounted on the front end of a fixed frame (11); a rotating rod (12) is rotatably mounted on the rear end of the rod seat (13); a V-shaped frame (28) is inlaid on the lower part of the rotating rod (12); knocking heads (27) are penetrated and inlaid at both ends of the V-shaped frame (28); and the knocking heads (27) correspond to the bending part of the feeding pipe (5).

5. The feed batching scale according to claim 4, characterized in that: A transmission shaft (32) is rotatably mounted at the front end of the fixed frame (11), and the transmission shaft (32) is located on the side of the rod seat (13). A swing ear (29) extends from the upper edge of the outer surface of the rotating rod (12), and an ear-connecting frame (30) is rotatably mounted at the end of the swing ear (29). A rotating ear (31) extends from the upper edge of the outer surface of the transmission shaft (32), and the end of the ear-connecting frame (30) is rotatably connected to the end of the rotating ear (31).

6. The feed batching scale according to claim 5, characterized in that: The driving member comprises a driving shaft (24) rotatably mounted on the front end of the shaft frame (20); the end of the driving shaft (24) and the lower end of the transmission shaft (32) are coaxially inlaid with a bevel gear (26); the two bevel gears (26) are meshed with each other; a motor frame (35) is fixedly mounted on the front end of the shaft frame (20); a first servo motor (9) is fixedly mounted on the end of the motor frame (35); the output end of the first servo motor (9) is fixed to the driving shaft (24); and the driving shaft (24) is connected to a first shaft body (18).

7. The feed batching scale according to claim 6, characterized in that: A second pinion gear (25) is coaxially inlaid on the outer surface of the driving shaft (24); a second shaft body (22) is arranged below the first shaft body (18); the second shaft body (22) is rotatably mounted on the shaft frame (20); a first pinion gear (21) is coaxially inlaid on the end of the second shaft body (22); a first large gear (8) is coaxially inlaid on the outer surface of the first shaft body (18); the first large gear (8) is meshed with the first pinion gear (21); a second large gear (23) is coaxially inlaid on the outer surface of the second shaft body (22); the second large gear (23) is meshed with the second pinion gear (25).

8. A weighing method for automatic quantitative batching, used in the feed batching scale according to claim 7, characterized in that: The following steps are involved: S1: The screw conveyor feeds the feed material into the feed pipe (5), so that the feed material falls into the weighing bucket (2) under the guidance of the feed pipe (5); S2: Then, the first servo motor (9) drives the lifting gear (17) on the first shaft (18) to slowly roll on the tooth plate (10) to drive the feeding pipe (5) to slowly move upward. At the same time, the first servo motor (9) also drives the knocking head (27) on the V-shaped frame (28) to continuously knock the feeding pipe (5), so that the feed material in the feeding pipe (5) falls normally; S3: The weighing sensor (6) transmits the weight of the feed material weighed in the weighing bucket (2) to the controller (3) in real time. When the weight reaches the weight set by the controller (3), the controller (3) controls the No. 1 servo motor (9) to stop working. At the same time, the controller (3) also controls the No. 2 servo motor (15) and the servo push cylinder (14) to work, so as to drive the pipe cover (19) to seal the feed pipe (5) and drive the sealing plate (16) to slide to open the weighing bucket (2), so that the weighed feed material is discharged, and the automatic quantitative weighing is completed.

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