Precise weighing and discharging device for feeding

Abstract

The invention discloses an accurate weighing and discharging device for feeding, and belongs to the technical field of accurate feeding of caged poultry, and the accurate weighing and discharging device is provided with a discharging assembly and a main shaft rotationally connected with the inner surface of the discharging assembly; comprising auger blades which are installed on the outer surface of the main shaft, a discharging opening is formed in the lower side of the outer surface of the discharging assembly, a supporting piece is installed on the lower surface of the discharging assembly, and meanwhile a weighing device is installed on the lower surface of the supporting piece. According to the precise weighing and discharging device for feeding, the auger blade assembled by the discharging assembly is arranged, the diameter and the screw pitch of the auger blade are reduced, the hopper structure is changed, the operation noise is reduced by adopting a stepping motor, and the error between the discharging weight and the set weight is better controlled; and the diameter and the screw pitch of the auger blade are reduced on the previous basis according to different weight requirements, the weighing effect is improved, the bottom plate is controlled to discharge through the extrusion rotating structure, and the stability of later weighing is improved through the extrusion unlocking mechanism before discharging.

Description

Technical Field

[0001] This invention relates to the field of precision feeding technology for caged poultry, specifically to a precision weighing and feeding device for feeding. Background Technology

[0002] When feeding caged poultry with precision, a weighing device is needed to control the amount of feed dispensed, so that different weights of feed can be dispensed according to different feeding stages to improve feeding efficiency and prevent excessive or insufficient feed from affecting normal feeding results. However, during use, the large pitch of the screw blades of the feeding auger results in high operating noise, and the complex structure of the weighing hopper with multi-link connection to the discharge bottom plate leads to a large error between the dispensed weight and the set weight.

[0003] To overcome the aforementioned shortcomings, existing technology (Chinese patent application CN202322691858.4, filed on 2023-10-08) provides a precision weighing feeding device. This device uses dual weighing sensors to support a square housing, resulting in good stability and high accuracy. The left and right baffles are opened using a lever mechanism, minimizing wear on the closed parts and preventing leakage. Another existing technology (Chinese patent application CN202220516384.2, filed on 2022-03-10) provides a precision feeding device that achieves precise feeding through a weighing device combined with an electrically controlled valve and control cabinet. After feeding, the pipes corresponding to each feed trough are cleaned promptly and then cleaned and dried again after complete feeding to prevent feed residue. The invention addresses issues such as spoilage leading to livestock health problems, and the prior art (Chinese patent application CN202421820352.7, filed on 20240730) describes a weighing precision feeder. This feeder uses a weighing sensor to weigh the feed hopper, with blades connected to a motor via a coupling. A control unit simultaneously controls the weighing sensor and motor, and includes a digital display showing the real-time weight of the feed in the hopper. While the prior art can achieve precise feeding and weighing, the weighing hopper structure is complex and prone to large errors in weighing accuracy, affecting feeding efficiency. Furthermore, during weighing, the discharge plate can easily sag, affecting the locking effect and causing feed waste. Additionally, during conveying and weighing, central accumulation and overflow can easily occur, impacting the weighing effect.

[0004] To address the aforementioned issues, there is an urgent need for innovative designs based on existing precision weighing and feeding devices. Summary of the Invention

[0005] The purpose of this invention is to provide a precise weighing and feeding device for feeding, in order to solve the problems mentioned in the background art, such as the complex structure of the weighing hopper used in operation, which easily leads to large errors in weighing accuracy, affecting the feeding effect, and the easy occurrence of the bottom plate of the feed dropping during weighing, affecting the locking effect and causing feed to fall and be wasted, and the easy occurrence of central accumulation and tipping during conveying and weighing, which affects the weighing effect.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a precision weighing and feeding device for feeding, comprising a feeding assembly and a main shaft rotatably connected to the inner surface of the feeding assembly; including: auger blades, installed on the outer surface of the main shaft, and a discharge port installed on the lower side of the outer surface of the feeding assembly, and a support member installed on the lower surface of the feeding assembly, while a weighing device is installed on the lower surface of the support member, and a hopper is installed on the side of the weighing device, and a side plate is installed on the rear side of the outer surface of the hopper, while a connecting member is rotatably connected to the outer surface of the side plate, and the connecting member is connected to a base plate through a compression rotation mechanism, and the connecting member is connected to a clamping member through a compression sliding mechanism, while the clamping member is connected to the hopper through an elastic reset mechanism.

[0007] Preferably, the feeding assembly forms a rotating structure with the main shaft and the auger blades, and the feeding assembly and the discharge port form an integrated structure. Furthermore, the feeding assembly forms a weighing structure with the hopper through the support member and the weighing device.

[0008] Preferably, a timing belt is rotatably connected to the outer surface of the main shaft, and a reciprocating threaded rod is rotatably connected to the lower side of the inner surface of the timing belt. The reciprocating threaded rod is positioned and rotated on the front side of the outer surface of the feeding assembly. A feeding block is connected to the outer surface of the reciprocating threaded rod, and a feeding component is installed on the lower surface of the feeding block. The feeding component is positioned on the upper side of the inner surface of the hopper.

[0009] Preferably, the main shaft forms a rotating structure with a reciprocating threaded rod via a synchronous belt, and the reciprocating threaded rod forms a reciprocating moving structure with the feeding block, and the feeding block and the feeding component are embedded in the upper surface of the feeding component.

[0010] Preferably, the extrusion and rotation mechanism further includes a nested ring mounted on the outer surface of the first connector, and a second connector is rotatably connected to the inner surface of the nested ring. A deflector is rotatably connected to the outer surface of the second connector, and a base plate is rotatably connected to the lower side of the outer surface of the deflector via a shaft. An extrusion block is mounted on the inner surface of the first connector, and an extrusion block is extruded and connected to the outer side of the first extrusion block. The second extrusion block is mounted on the rear side of the outer surface of the second connector. A locking post is telescopically connected to the inner surface of the first connector, and a compression spring is elastically connected between the locking post and the first connector. A locking groove is opened on the rear side of the inner surface of the second connector, and a locking post is engaged and connected to the inner surface of the locking groove.

[0011] Preferably, the first connector forms a nested rotation structure with the second connector through a nested ring, and the second connector forms a deflection structure with the bottom plate through an off-axis. The bottom plate and the hopper form a sealed bottom structure, and the first connector and the first extrusion block form an integrated structure. The first extrusion block and the second connector form an extrusion rotation structure through the second extrusion block. At the same time, the first connector forms an elastic telescopic structure with the compression spring and the locking post, and the first connector and the second connector form a locking structure through the locking post.

[0012] Preferably, the extrusion sliding mechanism further includes an offset member that is extruded and connected to the right side of the connector, and a limit block is installed on the upper surface of the offset member, which limits the sliding of the limit block to the lower side of the inner surface of the side plate. A pusher is installed on the right side of the outer surface of the offset member, and a clamp is extruded and connected to the right front end of the outer surface of the pusher, which is positioned and rotated to the rear side of the outer surface of the hopper.

[0013] Preferably, the connecting member and the offset member form a compression structure, and the offset member forms a limiting sliding structure with the side plate through the limiting block, and the offset member forms a compression structure with the pushing member and the clamping member, while the clamping member and the hopper form a rotating structure.

[0014] Preferably, the elastic reset mechanism further includes a telescopic rod rotatably connected to the right side of the outer surface of the clamp, and a telescopic component is telescopically connected to the outer surface of the telescopic rod. A reset spring is elastically connected between the telescopic component and the telescopic rod, and the upper side of the outer surface of the telescopic component is rotatably connected to the rear side of the outer surface of the hopper. At the same time, a clamping block is engaged with the side of the clamp, and the clamping block is installed on the rear side of the outer surface of the base plate.

[0015] Preferably, the locking element and the telescopic rod form a rotating structure, and the telescopic rod forms an elastic telescopic rotation structure with the hopper through a return spring and a telescopic assembly, and the locking element forms a limiting locking structure with the bottom plate through a locking block.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. This precise weighing and feeding device is equipped with auger blades assembled with feeding components. By reducing the diameter and pitch of the auger blades and changing the hopper structure, a stepper motor is used to reduce operating noise, and the error between the feeding weight and the set weight is better controlled. Furthermore, the diameter and pitch of the auger blades are reduced based on different weight requirements to improve the weighing effect. The bottom plate feeding is controlled by a squeezing and rotating structure, and the stability of the subsequent weighing is improved by squeezing and unlocking the mechanism before feeding.

[0017] 2. This precise weighing and feeding device is equipped with a synchronous belt that can rotate the main shaft to control the rotation of the reciprocating threaded rod, thereby controlling the movement of the feeding block. This allows for synchronous control of the feeding components installed on the feeding block to smooth the feed placed in the center, improving the stability of feeding and weighing.

[0018] 3. This precise weighing and feeding device is equipped with a compression and rotation mechanism. This allows for control of the rotation and compression between compression blocks one and two via a connecting part one corresponding to a connecting part two. During compression, the locking pins engage and limit the movement, controlling the stability of the subsequent reverse rotation. This, in turn, controls the positioning and rotation of the bottom plate connected to the offset axis of the connecting part two on the outer surface of the hopper, improving feeding stability. An unlocking and locking mechanism is also provided before feeding, ensuring stability during the bottom plate sealing process (unlocking before feeding) and during subsequent reset (resetting the bottom plate before locking and limiting), further improving the stability of the bottom plate. Furthermore, a compression and sliding mechanism is provided. Through the offset part connected to the connecting part one, the rotation and compression of the connecting part one controls the pusher to compress and rotate the locking block, releasing the locking block for easy deflection and feeding of the bottom plate. Finally, an elastic reset mechanism is provided, which allows the control locking block to engage with the locking block during subsequent bottom plate reset, improving locking and positioning stability. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the feeding component of the present invention; Figure 2 This is a semi-sectional three-dimensional structural diagram of the feeding component of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the discharge port of the present invention in half section view; Figure 4 This is a three-dimensional structural diagram of the material feeding component of the present invention; Figure 5 This is a schematic diagram of the off-axis rear view of the three-dimensional structure of the present invention; Figure 6 This is a half-section three-dimensional structural diagram of the connector of the present invention; Figure 7 This is a partial cross-sectional perspective view of the three-dimensional structure of the connector of the present invention; Figure 8 For the present invention Figure 7 Enlarged 3D structural diagram at point A; Figure 9 This is a three-dimensional structural diagram of the connector of the present invention.

[0020] In the diagram: 1. Feeding assembly; 2. Main shaft; 3. Screw blade; 4. Discharge port; 5. Support component; 6. Weighing device; 7. Hopper; 8. Side plate; 9. Synchronous belt; 10. Reciprocating threaded rod; 11. Feeding block; 12. Feeding component; 13. Connector 1; 14. Nested ring; 15. Connector 2; 16. Offset shaft; 17. Base plate; 18. Extrusion block 1; 19. Extrusion block 2; 20. Locking post; 21. Extrusion spring; 22. Locking groove; 23. Offset component; 24. Limiting block; 25. Pushing component; 26. Locking component; 27. Telescopic rod; 28. Telescopic assembly; 29. ​​Return spring; 30. Locking block. Detailed Implementation

[0021] Please see Figures 1-9 The present invention provides a technical solution: a precise weighing and feeding device for feeding, which is provided with a feeding component 1 and a main shaft 2 rotatably connected to the inner surface of the feeding component 1; Example 1: As Figures 1-9 The present invention provides the following technical solution: a precise weighing and feeding device for feeding, comprising: an auger blade 3, installed on the outer surface of the main shaft 2, and a discharge port 4 installed on the lower side of the outer surface of the feeding assembly 1, and a support member 5 installed on the lower surface of the feeding assembly 1, while a weighing device 6 is installed on the lower surface of the support member 5, and a hopper 7 is installed on the side of the weighing device 6, and a side plate 8 is installed on the rear side of the outer surface of the hopper 7, while a connecting member 13 is rotatably connected to the outer surface of the side plate 8, and the connecting member 13 is connected to the base plate 17 through a compression rotation mechanism, and the connecting member 13 is connected to the clamp 26 through a compression sliding mechanism, while the clamp 26 is connected to the hopper 7 through an elastic reset mechanism.

[0022] When feeding and weighing are required, the motor assembled at the rear of the feeding assembly 1 controls the output shaft to drive the auger blades 3 mounted on the main shaft 2 to rotate on the inner surface of the feeding assembly 1, conveying the feed in the feeding assembly 1 to the discharge port 4 and into the corresponding hopper 7 below the discharge port 4. The hopper 7 is assembled under the support member 5 mounted on the feeding assembly 1 by a weighing device 6, which is used to control the stability of the weighing in the hopper 7. After weighing is completed, the feed is discharged through the rear of the hopper 7. The motor assembled on the side plate 8 controls the output shaft to drive the first connector 13 to rotate and squeeze the second connector 15 to rotate, thereby controlling the bottom plate 17 assembled on the offset shaft 16 to release feed. Before the compression between the first connector 13 and the second connector 15, the rotation of the first connector 13 controls the locking piece 26 to disengage from the bottom plate 17. The limiting locking piece 26 on the bottom plate 17 can be used to stabilize the feed during weighing and feeding, and prevent the bottom plate 17 from loosening and leaking feed.

[0023] Example 2: Figures 1-4The technical solution shown, based on Embodiment 1, further discloses a method for leveling feed, avoiding the impact of centered stockpiling on weighing, and solving the problem of inconvenient control over the accuracy of feed weighing. Its specific details are as follows: The feeding assembly 1 forms a rotating structure with the main shaft 2 and the auger blades 3, and the feeding assembly 1 and the discharge port 4 form an integrated structure. Furthermore, the feeding assembly 1 forms a weighing structure with the hopper 7 through the support member 5 and the weighing device 6; Figure 4 As shown, a synchronous belt 9 is rotatably connected to the outer surface of the main shaft 2, and a reciprocating threaded rod 10 is rotatably connected to the lower side of the inner surface of the synchronous belt 9. The reciprocating threaded rod 10 is positioned and rotated on the front side of the outer surface of the feeding assembly 1, and a feeding block 11 is connected to the outer surface of the reciprocating threaded rod 10. At the same time, a feeding component 12 is installed on the lower surface of the feeding block 11, and the feeding component 12 is set on the upper side of the inner surface of the hopper 7; Figure 4 As shown, the main shaft 2 forms a rotating structure with the reciprocating threaded rod 10 via the synchronous belt 9, and the reciprocating threaded rod 10 forms a reciprocating moving structure with the feeding block 11, and the feeding block 11 and the feeding component 12 are embedded in the upper surface of the feeding component 12.

[0024] When the auger blades 3 are discharging material under the rotation control of the main shaft 2, the synchronous belt 9 assembled at the end of the main shaft 2 will rotate synchronously. The synchronous belt 9 drives the connected reciprocating threaded rod 10 to rotate and adjust the position of the feeding block 11. This allows the feeding component 12 assembled on the feeding block 11 to move simultaneously, thereby smoothing the feed in the center of the hopper 7 during the discharging process and preventing excessive accumulation that could affect the weighing accuracy.

[0025] Example 3: Figures 5-9 The technical solution shown, based on Embodiment 2, further discloses a locking control for the base plate 17. The base plate 17 can be unlocked first, then rotated open to control material feeding. Later, the base plate 17 can be closed first, followed by locking and positioning, improving the stability of the base plate 17 during operation and preventing detachment. This solves the problem of the base plate 17 easily becoming loose and leaking material. The specific details are as follows: The extrusion rotation mechanism also includes a nested ring 14 installed on the outer surface of the connecting member 13, and a connecting member 2 15 is nested and rotatably connected to the inner surface of the nested ring 14. Furthermore, the outer surface of the connecting member 2 15... A pivot shaft 16 is rotatably connected to the surface, and a base plate 17 is rotatably connected to the lower side of the outer surface of the pivot shaft 16 via a shaft. A pressing block 18 is installed on the inner surface of connector 13, and a pressing block 19 is pressed onto the outer side of the pressing block 18. The pressing block 19 is installed on the rear side of the outer surface of connector 15. A locking post 20 is telescopically connected to the inner surface of connector 13, and a compression spring 21 is elastically connected between the locking post 20 and connector 13. A slot 22 is opened on the rear side of the inner surface of connector 15, and the locking post 20 is engaged with the inner surface of the slot 22. Figure 5 , Figure 6 and Figure 9 As shown, connector 13 forms a nested rotation structure with connector 2 15 via nested ring 14, and connector 2 15 forms a deflection structure with base plate 17 via offset shaft 16. Base plate 17 forms a bottom sealing structure with hopper 7. Connector 13 and extrusion block 18 form an integrated structure, and extrusion block 18 forms an extrusion rotation structure with connector 2 15 via extrusion block 2 19. Simultaneously, connector 13 forms an elastic telescopic structure with clamping post 20 via extrusion spring 21, and connector 13 forms a locking structure with connector 2 15 via clamping post 20. Figure 7 and Figure 9 As shown, the extrusion sliding mechanism also includes an offset member 23 extruded and connected to the right side of the connector 13. A limiting block 24 is installed on the upper surface of the offset member 23, limiting the sliding of the limiting block 24 to the lower side of the inner surface of the side plate 8. A pusher 25 is installed on the right side of the outer surface of the offset member 23, and a clamping member 26 is extruded and connected to the right front end of the outer surface of the pusher 25, positioning and rotating the clamping member 26 to the rear side of the outer surface of the hopper 7. Figure 7 and Figure 9 As shown, connector 13 and offset component 23 form a pressing structure, and offset component 23 forms a limiting sliding structure with side plate 8 through limiting block 24. Furthermore, offset component 23 forms a pressing structure with pusher 25 and clamping component 26, while clamping component 26 forms a rotating structure with hopper 7. Figure 7 and Figure 8 As shown, the elastic reset mechanism also includes a telescopic rod 27 rotatably connected to the right side of the outer surface of the locking member 26, and a telescopic assembly 28 is telescopically connected to the outer surface of the telescopic rod 27. A reset spring 29 is elastically connected between the telescopic assembly 28 and the telescopic rod 27, and the upper side of the outer surface of the telescopic assembly 28 is rotatably connected to the rear side of the outer surface of the hopper 7. Simultaneously, a locking block 30 is engaged with the side of the locking member 26, and the locking block 30 is installed on the rear side of the outer surface of the base plate 17. Figure 7 and Figure 8 As shown, the locking element 26 and the telescopic rod 27 form a rotating structure, and the telescopic rod 27 forms an elastic telescopic rotation structure with the hopper 7 through the return spring 29 and the telescopic assembly 28, and the locking element 26 forms a limiting locking structure with the bottom plate 17 through the locking block 30.

[0026] When feed needs to be released, the output shaft controlled by the motor assembled on the rear side of side plate 8 rotates. The output shaft drives the connecting piece 13 to rotate. During rotation, the side of the connecting piece 13 squeezes the offset piece 23. The limiting block 24 installed on the offset piece 23 slides on the inner surface of the side plate 8, thereby controlling the pusher 25 installed on the offset piece 23 to squeeze the locking piece 26. The locking piece 26 rotates and disengages from the outer surface of the locking block 30 installed on the bottom plate 17 on the rear side of the outer surface of the hopper 7, thereby unlocking the bottom plate 17. When the locking piece 26 rotates, the side of the locking piece 26 rotates and squeezes the telescopic rod 27. The telescopic rod 27 squeezes the return spring 29 on the inner surface of the telescopic assembly 28 and retracts. After the locking mechanism is unlocked, the connecting piece 13 continues to rotate, causing the installed squeezing block 18 and squeezing block 29 to contact each other. The connecting piece 13 is elastically controlled by the built-in squeezing spring 21. The connecting pin 20 is stably engaged in the slot 22 of the connecting piece 25, which controls the stability of the connection between the connecting piece 13 and the connecting piece 25. The connecting piece 13 and the connecting piece 25 are limited to rotate by the nested ring 14, which improves the stability during rotation. The rotation of the offset shaft 16 is adjusted by squeezing the connecting piece 25, and the offset shaft 16 drives the bottom plate 17 to rotate and position on the outer surface of the hopper 7 to release feed, which improves the stability of feed release. After the feed is released, the bottom plate 17 is controlled to rotate in the opposite direction, thereby controlling the elastic engagement and squeezing between the connecting piece 13 and the connecting piece 25. This prevents the bottom plate 17 from disengaging during reverse rotation and facilitates the reset of the bottom plate 17. Then, the connecting piece 13 disengages from squeezing the locking piece 26, and the locking piece 26 is elastically engaged under the locking block 30 assembled on the bottom plate 17. This also controls the leakage prevention when the bottom plate 17 is reset and the feed is released, increasing the weighing stability.

Claims

1. A precision weighing and feeding device for feeding, comprising a feeding component (1) and a main shaft (2) rotatably connected to the inner surface of the feeding component (1). Its features are, include: Screw blades (3) are installed on the outer surface of the main shaft (2), and a discharge port (4) is installed on the lower side of the outer surface of the feeding assembly (1). A support (5) is installed on the lower surface of the feeding assembly (1), and a weighing device (6) is installed on the lower surface of the support (5). A hopper (7) is installed on the side of the weighing device (6), and a side plate (8) is installed on the rear side of the outer surface of the hopper (7). A connecting piece (13) is rotatably connected to the outer surface of the side plate (8), and the connecting piece (13) is connected to the bottom plate (17) through a pressing and rotating mechanism. The connecting piece (13) is connected to the clamp (26) through a pressing and sliding mechanism, and the clamp (26) is connected to the hopper (7) through an elastic reset mechanism.

2. The precise weighing and feeding device for feeding according to claim 1, characterized in that: The feeding assembly (1) forms a rotating structure with the main shaft (2) and the auger blade (3), and the feeding assembly (1) and the discharge port (4) form an integrated structure. The feeding assembly (1) forms a weighing structure with the hopper (7) through the support (5) and the weighing device (6).

3. The precise weighing and feeding device for feeding according to claim 1, characterized in that: The outer surface of the main shaft (2) is rotatably connected to a timing belt (9), and the lower side of the inner surface of the timing belt (9) is rotatably connected to a reciprocating threaded rod (10). The reciprocating threaded rod (10) is positioned and rotated on the front side of the outer surface of the feeding assembly (1). The outer surface of the reciprocating threaded rod (10) is connected to a feeding block (11), and a feeding component (12) is installed on the lower surface of the feeding block (11). The feeding component (12) is set on the upper side of the inner surface of the hopper (7).

4. The precise weighing and feeding device for feeding according to claim 3, characterized in that: The main shaft (2) forms a rotating structure with the reciprocating threaded rod (10) via the synchronous belt (9), and the reciprocating threaded rod (10) forms a reciprocating moving structure with the feeding block (11), and the feeding block (11) and the feeding component (12) are embedded in the upper surface of the feeding component (12).

5. The precise weighing and feeding device for feeding according to claim 1, characterized in that: The extrusion and rotation mechanism also includes a nested ring (14) installed on the outer surface of the first connector (13), and a second connector (15) is nested and rotatably connected to the inner surface of the nested ring (14), and an off-axis (16) is rotatably connected to the outer surface of the second connector (15). At the same time, a base plate (17) is rotatably connected to the lower side of the outer surface of the off-axis (16) through a shaft. An extrusion block (18) is installed on the inner surface of the first connector (13), and an extrusion block (19) is extruded and connected to the outer side of the extrusion block (18). The extrusion block (19) is installed on the rear side of the outer surface of the second connector (15), and a locking post (20) is telescopically connected to the inner surface of the first connector (13). At the same time, an extrusion spring (21) is elastically connected between the locking post (20) and the first connector (13). A slot (22) is opened on the rear side of the inner surface of the second connector (15), and a locking post (20) is engaged and connected to the inner surface of the slot (22).

6. The precise weighing and feeding device for feeding according to claim 5, characterized in that: The first connector (13) forms a nested rotating structure with the second connector (15) through the nested ring (14), and the second connector (15) forms a deflection structure with the bottom plate (17) through the offset shaft (16), and the bottom plate (17) forms a sealing bottom structure with the hopper (7), and the first connector (13) forms an integrated structure with the first extrusion block (18), and the first extrusion block (18) forms an extrusion rotating structure with the second connector (15) through the second extrusion block (19), while the first connector (13) forms an elastic telescopic structure with the clamping post (20) through the extrusion spring (21), and the first connector (13) forms a locking structure with the second connector (15) through the clamping post (20).

7. The precise weighing and feeding device for feeding according to claim 1, characterized in that: The extrusion sliding mechanism also includes an offset part (23) extruded and connected to the right side of the connector (13), and a limit block (24) is installed on the upper surface of the offset part (23), and the limit block (24) is limited and slid on the lower side of the inner surface of the side plate (8). A pusher (25) is installed on the right side of the outer surface of the offset part (23), and a clamp (26) is extruded and connected to the right front end of the outer surface of the pusher (25), and the clamp (26) is positioned and rotated and connected to the rear side of the outer surface of the hopper (7).

8. A precise weighing and feeding device for feeding according to claim 7, characterized in that: The connecting member (13) and the offset member (23) form a compression structure, and the offset member (23) forms a limiting sliding structure with the side plate (8) through the limiting block (24), and the offset member (23) forms a compression structure with the push member (25) and the clamping member (26), while the clamping member (26) and the hopper (7) form a rotation structure.

9. A precise weighing and feeding device for feeding according to claim 1, characterized in that: The elastic reset mechanism also includes a telescopic rod (27) rotatably connected to the right side of the outer surface of the clamp (26), and a telescopic assembly (28) is telescopically connected to the outer surface of the telescopic rod (27), and a reset spring (29) is elastically connected between the telescopic assembly (28) and the telescopic rod (27), and the upper side of the outer surface of the telescopic assembly (28) is rotatably connected to the rear side of the outer surface of the hopper (7), while a clamping block (30) is engaged with the side of the clamp (26), and the clamping block (30) is installed on the rear side of the outer surface of the base plate (17).

10. A precise weighing and feeding device for feeding according to claim 9, characterized in that: The clamp (26) and the telescopic rod (27) form a rotating structure, and the telescopic rod (27) forms an elastic telescopic rotation structure with the hopper (7) through the return spring (29) and the telescopic component (28), and the clamp (26) forms a limiting engagement structure with the bottom plate (17) through the clamp block (30).

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