A biodegradable material feeding device

By combining the lifting mechanism and the flow control mechanism, the problems of high labor intensity and inaccurate flow regulation during the feeding of biodegradable materials are solved, achieving stable material lifting and precise flow control, thereby improving production efficiency and equipment reliability.

CN224349944UActive Publication Date: 2026-06-12统标检测认证(常熟)有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
统标检测认证(常熟)有限公司
Filing Date
2025-06-19
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Existing methods for feeding biodegradable materials are labor-intensive, inefficient, and have low flow rate adjustment precision, making them unsuitable for different production conditions.

Method used

The design employs a combination of lifting, control, and positioning mechanisms, including components such as guide frame, lifting frame, motor, drive wheel, transmission wheel, transmission chain, support plate, material cylinder, electric valve, connecting sleeve, chute, slider, baffle plate, connecting plate, transmission sleeve, and adjusting sleeve, to achieve stable material lifting and precise flow control.

🎯Benefits of technology

It improves the stability and efficiency of material lifting, ensures the accuracy and consistency of flow regulation, reduces equipment wear, extends service life, and reduces operational difficulty.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224349944U_ABST
    Figure CN224349944U_ABST
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Abstract

The utility model discloses a kind of biodegradable material feeding devices, including base, lifting mechanism is arranged on the base, the lifting mechanism includes guide frame, lifting frame, motor, drive wheel, transmission wheel, transmission chain, support plate and barrel, guide frame is fixed on base top surface, lifting frame slides in guide frame, motor is fixed on base, drive wheel is fixed in motor output end, transmission wheel rotates in guide frame top end, transmission chain is arranged in drive wheel and transmission wheel outside and is fixedly connected with lifting frame, support plate is fixed in lifting frame outside, barrel is installed in support plate top surface, electric valve is connected in the outer wall of the barrel, the bottom end of the electric valve is connected and is equipped with control mechanism, the control mechanism includes connecting sleeve, sliding slot, sliding block, baffle, connecting plate, transmission sleeve and adjusting sleeve, the position of baffle is accurately controlled by the thread cooperation of rotating adjusting sleeve and transmission sleeve, stepless adjustment to flow area is realized, thereby accurately control material flow.
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Description

Technical Field

[0001] This utility model relates to the field of biodegradation technology, and more specifically, to a biodegradable material feeding device. Background Technology

[0002] The processing of biodegradable materials requires the transport of raw materials from low-level storage areas to high-level processing equipment to achieve continuous production. However, the current feeding methods commonly used in the industry have significant shortcomings, relying heavily on manual handling or simple lifting equipment. This not only results in high labor intensity and low efficiency but also easily leads to material contamination and worker safety hazards.

[0003] Traditional feeding systems generally use simple valves or metering pumps for flow regulation, which has low regulation accuracy, slow response speed, and is easily affected by changes in material viscosity, making it unable to adapt to the differentiated flow requirements under different production conditions. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the problems existing in the prior art, this utility model provides a biodegradable material feeding device to solve the technical problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a biodegradable material feeding device, comprising a base, on which a lifting mechanism is provided. The lifting mechanism includes a guide frame, a lifting frame, a motor, a drive wheel, a transmission wheel, a transmission chain, a support plate, and a material cylinder. The guide frame is fixed to the top surface of the base, the lifting frame slides within the guide frame, the motor is fixed to the base, the drive wheel is fixed to the motor output end, the transmission wheel rotates at the top of the guide frame, the transmission chain is located outside the drive wheel and the transmission wheel and is fixedly connected to the lifting frame, and the support plate is fixed to the lifting frame. On the outside, the material cylinder is installed on the top surface of the support plate. An electric valve is connected to the outer wall of the material cylinder. A control mechanism is connected to the bottom end of the electric valve. The control mechanism includes a connecting sleeve, a sliding groove, a slider, a baffle plate, a connecting plate, a transmission sleeve, and an adjusting sleeve. The connecting sleeve is fixed to the bottom end of the electric valve. Multiple sets of sliding grooves are distributed on the inner wall of the connecting sleeve. The slider slides in multiple sets of sliding grooves. The baffle plate is fixed inside the multiple sets of sliders. The connecting plate is fixed to the outer wall of the multiple sets of baffle plates. The transmission sleeve is fixed to the top of the multiple sets of connecting plates. The adjusting sleeve rotates at one end of the connecting sleeve and is threadedly connected to the transmission sleeve.

[0008] The present invention is further configured such that the outer wall of the lifting frame is provided with guide wheels, and the guide wheels are provided in multiple sets, which are rotatably installed on both sides of the lifting frame and respectively abut against the outer wall of the guide frame. This design makes the lifting frame uniformly stressed when it moves inside the guide frame, reduces frictional resistance, ensures a smooth and stable lifting process, prevents material from shaking and overflowing, and extends the service life of the equipment and improves operational reliability.

[0009] The present invention is further configured such that guide blocks are fixedly provided on the outer walls of the multiple sets of sliders, and guide grooves are provided in the multiple sets of slide grooves. The multiple sets of guide grooves are slidably connected to the multiple sets of guide blocks. This structural design ensures that the slider maintains a precise trajectory when moving in the slide groove, prevents the baffle plate from deviating or getting stuck, improves the accuracy and repeatability of flow regulation, and at the same time reduces the wear of parts and extends the service life of the flow control mechanism.

[0010] The present invention is further configured such that the adjusting sleeve is provided with a limiting rod, and multiple sets of the limiting rod are provided and slidably connected with the transmission sleeve. This design prevents the transmission sleeve from rotating under the thread drive, ensuring that it only moves axially, converting rotational motion into linear motion, improving adjustment accuracy, and avoiding twisting and deformation of the connecting plate, thus ensuring the accuracy and stability of the baffle plate position adjustment.

[0011] The present invention is further configured such that all of the connecting plates are flexible plates. This flexible design enables the connecting plates to adapt to the small deformation requirements under different pressure and flow conditions, reduces the impact of material flow on the baffle plate, avoids structural damage that may be caused by rigid connection, and improves the system's adaptability to materials of different viscosities, thus extending its service life.

[0012] The present invention is further configured such that the outer wall of the adjusting sleeve is provided with a positioning mechanism, the positioning mechanism including an mounting ring, a positioning block, a fixing ring, a slide bar, a clamping block, a positioning groove, and a tension spring. The mounting ring is fixed to the outer wall of the adjusting sleeve, multiple sets of positioning blocks are fixed to the bottom surface of the mounting ring, the fixing ring is fixed to the outer wall of the connecting sleeve, multiple sets of slide bars are distributed on the outer wall of the fixing ring, multiple sets of clamping blocks are respectively slidable on the outer walls of multiple sets of slide bars, the positioning groove is provided at the top of multiple sets of clamping blocks, and multiple sets of tension springs are respectively connected between multiple sets of clamping blocks. This combined mechanism realizes accurate locking of the position of the adjusting sleeve, prevents positional deviation during equipment vibration or long-term operation, ensures the stability and reliability of the flow rate setting value, and improves the consistency of the production process and product quality.

[0013] The present invention is further configured such that baffles are fixedly provided on the outer walls of the multiple sets of slide bars, and the multiple sets of baffles respectively abut against the inner side of the multiple sets of clamping blocks. This design limits the excessive sliding of the clamping blocks, prevents the tension spring from being overstretched or deformed, ensures the reliable operation of the positioning mechanism, simplifies the clamping block reset process, and improves the response speed and service life of the positioning mechanism.

[0014] The present invention is further configured such that all of the multiple sets of positioning blocks and positioning grooves are arc-shaped. This arc shape design increases the contact area, improves positioning accuracy and stability, and facilitates the positioning blocks to slide into the positioning grooves to achieve automatic centering, reducing the difficulty of operation. The arc transition also reduces stress concentration, extends the service life of components, and improves the reliability of the overall device.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, the present invention provides a biodegradable material feeding device, which has the following beneficial effects:

[0017] 1. The lifting mechanism adopts a combination design of guide frame, lifting frame, motor, drive wheel, transmission wheel, transmission chain, support plate and material cylinder, which cleverly solves the problem of inconvenient material lifting mentioned in the background technology. The mechanism drives the transmission chain through the motor to make the lifting frame slide smoothly in the guide frame. Multiple sets of guide wheels ensure that the lifting process is stable and without shaking. The design of the support plate and material cylinder enables the material to be safely stored and lifted to the required height.

[0018] 2. The flow control mechanism consists of a connecting sleeve, a slide groove, a slider, a baffle plate, a connecting plate, a transmission sleeve, and an adjusting sleeve. It provides a precise solution for material flow control. The connecting sleeve is fixedly connected to the electric valve to form a stable output channel. The slider in multiple slide grooves achieves precise sliding through guide blocks and guide grooves. The combined design of the baffle plate and the connecting plate makes the flow regulation more stable and controllable. The flexible plate design of the connecting plate can adapt to the flow characteristics of different materials. This mechanism precisely controls the position of the baffle plate by rotating the adjusting sleeve and the threaded engagement of the transmission sleeve, realizing stepless adjustment of the flow area, thereby achieving precise control of the material flow.

[0019] 3. The positioning mechanism includes an mounting ring, a positioning block, a fixing ring, a slide bar, a clamping block, a positioning groove, and a tension spring. It provides a reliable position locking function for the flow control mechanism. The mounting ring is fixed to the outer wall of the adjusting sleeve to form a basic support. The arc-shaped positioning block and positioning groove design enhance the positioning accuracy and stability. The combination of the fixing ring and the slide bar ensures that the sliding trajectory of the clamping block is precise and controllable. This mechanism achieves accurate locking of the adjusting sleeve position through the precise cooperation of the positioning block and the positioning groove. The tension spring provides the return force for the clamping block, ensuring that the positioning process is completed automatically. The design of multiple baffles prevents the clamping block from sliding excessively. This multi-point positioning design not only solves the problem that traditional flow regulating devices are easily affected by vibration and may deviate, but also ensures the accuracy and repeatability of the flow setting under different working conditions. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a biodegradable material feeding device according to the present invention;

[0021] Figure 2 This is a schematic diagram of the transmission chain in this utility model;

[0022] Figure 3 This is a schematic diagram of the connecting sleeve in this utility model;

[0023] Figure 4 This is a cross-sectional view of the connecting sleeve in this utility model;

[0024] Figure 5 This is a schematic diagram of the disassembled structure of the positioning mechanism in this utility model.

[0025] In the diagram: 1. Base; 2. Guide frame; 3. Lifting frame; 4. Motor; 5. Drive wheel; 6. Transmission wheel; 7. Transmission chain; 8. Support plate; 9. Material cylinder; 10. Electric valve; 11. Connecting sleeve; 12. Slide groove; 13. Slider; 14. Baffle plate; 15. Connecting plate; 16. Transmission sleeve; 17. Adjusting sleeve; 18. Guide wheel; 19. Guide block; 20. Guide groove; 21. Limiting rod; 22. Mounting ring; 23. Positioning block; 24. Fixing ring; 25. Slide bar; 26. Clamping block; 27. Positioning groove; 28. Tension spring; 29. ​​Baffle. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0029] Please see Figures 1-5A biodegradable material feeding device includes a base 1, on which a lifting mechanism is provided. The lifting mechanism includes a guide frame 2, a lifting frame 3, a motor 4, a drive wheel 5, a transmission wheel 6, a transmission chain 7, a support plate 8, and a material cylinder 9. The guide frame 2 is fixed to the top surface of the base 1, the lifting frame 3 slides within the guide frame 2, the motor 4 is fixed to the base 1, the drive wheel 5 is fixed to the output end of the motor 4, the transmission wheel 6 rotates at the top of the guide frame 2, the transmission chain 7 is located outside the drive wheel 5 and the transmission wheel 6 and is fixedly connected to the lifting frame 3, the support plate 8 is fixed to the outside of the lifting frame 3, and the material cylinder 9 is installed on the top surface of the support plate 8. The outer wall of the material cylinder 9 is connected to... An electric valve 10 is provided, and a control mechanism is connected to the bottom end of the electric valve 10. The control mechanism includes a connecting sleeve 11, a slide groove 12, a slider 13, a baffle plate 14, a connecting plate 15, a transmission sleeve 16, and an adjusting sleeve 17. The connecting sleeve 11 is fixed to the bottom end of the electric valve 10. Multiple sets of slide grooves 12 are provided on the inner wall of the connecting sleeve 11. The slider 13 slides in the multiple sets of slide grooves 12. The baffle plate 29 is fixed to the inner side of the multiple sets of sliders 13. The connecting plate 15 is fixed to the outer wall of the multiple sets of baffle plates 14. The transmission sleeve 16 is fixed to the top of the multiple sets of connecting plates 15. The adjusting sleeve 17 rotates at one end of the connecting sleeve 11 and is threadedly connected to the transmission sleeve 16.

[0030] The outer wall of the lifting frame 3 is equipped with guide wheels 18. Multiple sets of guide wheels 18 are rotatably installed on both sides of the lifting frame 3 and abut against the outer wall of the guide frame 2. The guide wheels 18 adopt the rolling contact principle, which converts the sliding friction between the lifting frame 3 and the guide frame 2 into rolling friction. The multiple sets of guide wheels 18 distributed on both sides form a multi-point support structure, ensuring that the lifting frame 3 maintains stable balance during vertical movement and reducing running resistance.

[0031] Guide blocks 19 are fixedly provided on the outer walls of multiple sets of sliders 13, and guide grooves 20 are provided in multiple sets of slide grooves 12. The multiple sets of guide grooves 20 are slidably connected to the multiple sets of guide blocks 19. The guide blocks 19 and guide grooves 20 form a precise linear guiding system. The principle of convex-concave fit is used to restrict the degree of freedom of sliders 13, so that they can only move along the axial direction of slide grooves 12 without deflection, thus ensuring the synchronous parallel movement of multiple sets of baffles 14.

[0032] The adjusting sleeve 17 is provided with a limiting rod 21. Multiple sets of limiting rods 21 are provided and are slidably connected to the transmission sleeve 16. The limiting rod 21 adopts the keyway limiting principle to prevent the transmission sleeve 16 from rotating with the adjusting sleeve 17, but allows it to move axially, thus converting rotational motion into linear motion and realizing precise control of the screw drive.

[0033] All sets of connecting plates 15 are designed as flexible plates. The flexible plate design utilizes the principle of elastic deformation of materials, enabling the connecting plates 15 to undergo small and controllable deformations under stress, absorbing fluid impact and adapting to stress distribution under different working conditions, thus avoiding stress concentration and structural damage that may be caused by rigid structures.

[0034] The outer wall of the adjusting sleeve 17 is provided with a positioning mechanism, which includes a mounting ring 22, a positioning block 23, a fixing ring 24, a slide bar 25, a clamping block 26, a positioning groove 27, and a tension spring 28. The mounting ring 22 is fixed to the outer wall of the adjusting sleeve 17. Multiple sets of positioning blocks 23 are fixed to the bottom surface of the mounting ring 22. The fixing ring 24 is fixed to the outer wall of the connecting sleeve 11. Multiple sets of slide bars 25 are distributed on the outer wall of the fixing ring 24. Multiple sets of clamping blocks 26 slide on the outer walls of the multiple sets of slide bars 25. The positioning groove 27 is located at the top of the multiple sets of clamping blocks 26. Multiple sets of tension springs 28 are provided and connected between the multiple sets of clamping blocks 26. The positioning mechanism adopts the principle of elastic engagement. Position locking is achieved through the engagement of the positioning block 23 and the positioning groove 27. The tension spring 28 provides preload to keep the clamping block 26 in the locked position. The multiple sets of distributed design ensure that the locking force is uniform and reliable.

[0035] Each of the multiple sets of slide bars 25 has a baffle 29 fixedly installed on its outer wall, and the baffles 29 abut against the inner side of the multiple sets of clamping blocks 26 respectively. The baffles 29 apply the principle of mechanical limiting to set physical boundaries for the sliding of the clamping blocks 26, prevent the clamping blocks 26 from sliding excessively under the action of the tension spring 28, ensure that the positioning system works within the predetermined range, and improve the reliability of the system.

[0036] All sets of positioning blocks 23 and positioning grooves 27 are designed in an arc shape. The arc design applies the principle of progressive contact, which increases the contact area while reducing the contact stress, so that the positioning blocks 23 can smoothly slide into or out of the positioning grooves 27 during rotation, reducing impact and realizing automatic centering function.

[0037] In this embodiment, the material is injected into the cylinder 9, the motor 4 is started to drive the drive wheel 5 to rotate, the drive wheel 5 moves along the drive wheel 6 through the transmission chain 7, and the lifting frame 3 slides along the guide frame 2 through the transmission chain 7. At the same time, multiple sets of guide wheels 18 slide along the outer wall of the guide frame 2. The lifting frame 3 drives the cylinder 9 on the support plate 8 to be lifted. When it is lifted to a suitable height, the electric valve 10 is activated so that the material is discharged from the cylinder 9 through the metering mechanism for feeding.

[0038] More specifically, when it is necessary to adjust the material feeding flow rate, the rotating adjusting sleeve 17 and the transmission sleeve 16 are threaded together, so that the transmission sleeve 16 slides along multiple sets of limit rods 21, and drives multiple sets of baffles 14 through multiple sets of connecting plates 15, so that multiple sets of baffles 29 slide along the slide groove 12 and guide groove 20 respectively through the slider 13 and guide block 19, thereby adjusting the material flow area between multiple sets of baffles 14, thereby adjusting the material flow rate. When the adjusting sleeve 17 rotates, it drives the mounting ring 22 to rotate, and the mounting ring 22 drives multiple sets of positioning blocks 23 to push multiple sets of clamping blocks 26 respectively, so that multiple sets of clamping blocks 26 slide along the slide bar 25 and stretch the tension spring 28. When the positioning block 23 moves into the next set of positioning grooves 27, the multiple sets of tension springs 28 reset and pull the multiple sets of clamping blocks 26, so that the multiple sets of positioning blocks 23 abut in the positioning groove 27, positioning the adjusting sleeve 17.

[0039] In summary, when the entire equipment is in use or running: the material is injected into the material cylinder 9, the motor 4 is started to drive the drive wheel 5 to rotate, the drive wheel 5 moves along the drive wheel 6 through the transmission chain 7, and the lifting frame 3 slides along the guide frame 2 through the transmission chain 7. At the same time, multiple sets of guide wheels 18 slide along the outer wall of the guide frame 2, and the lifting frame 3 drives the material cylinder 9 on the support plate 8 to be lifted. When it is lifted to a suitable height, the electric valve 10 is activated, so that the material is discharged from the material cylinder 9 through the metering mechanism for feeding.

[0040] When it is necessary to adjust the material feeding flow rate, the rotating adjusting sleeve 17 and the transmission sleeve 16 are threaded together, so that the transmission sleeve 16 slides along multiple sets of limit rods 21, and drives multiple sets of baffles 14 through multiple sets of connecting plates 15, so that multiple sets of baffles 29 slide along the slide groove 12 and guide groove 20 respectively through sliders 13 and guide blocks 19, thereby adjusting the material flow area between multiple sets of baffles 14, thereby adjusting the material flow rate. When the adjusting sleeve 17 rotates, it drives the mounting ring 22 to rotate. The mounting ring 22 drives multiple sets of positioning blocks 23 to push multiple sets of clamping blocks 26 respectively, so that multiple sets of clamping blocks 26 slide along the slide bar 25 and stretch the tension spring 28. When the positioning block 23 moves into the next set of positioning grooves 27, the multiple sets of tension springs 28 reset and pull the multiple sets of clamping blocks 26, so that the multiple sets of positioning blocks 23 abut in the positioning groove 27, positioning the adjusting sleeve 17.

[0041] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A biodegradable material feeding device, comprising a base (1), characterized in that: A lifting mechanism is provided on the base (1). The lifting mechanism includes a guide frame (2), a lifting frame (3), a motor (4), a drive wheel (5), a transmission wheel (6), a transmission chain (7), a support plate (8), and a material cylinder (9). The guide frame (2) is fixed on the top surface of the base (1), the lifting frame (3) slides inside the guide frame (2), the motor (4) is fixed on the base (1), the drive wheel (5) is fixed on the output end of the motor (4), the transmission wheel (6) rotates on the top of the guide frame (2), the transmission chain (7) is located outside the drive wheel (5) and the transmission wheel (6) and is fixedly connected to the lifting frame (3), the support plate (8) is fixed on the outside of the lifting frame (3), and the material cylinder (9) is installed on the top surface of the support plate (8). An electric motor is connected to the outer wall of the material cylinder (9). The valve (10) is equipped with a control mechanism at the bottom end of the electric valve (10). The control mechanism includes a connecting sleeve (11), a slide groove (12), a slider (13), a baffle plate (14), a connecting plate (15), a transmission sleeve (16), and an adjusting sleeve (17). The connecting sleeve (11) is fixed at the bottom end of the electric valve (10). The slide groove (12) is provided with multiple sets distributed on the inner wall of the connecting sleeve (11). The slider (13) slides in the multiple sets of slide grooves (12). The baffle plate (29) is fixed on the inner side of the multiple sets of sliders (13). The connecting plate (15) is fixed on the outer wall of the multiple sets of baffle plates (14). The transmission sleeve (16) is fixed on the top of the multiple sets of connecting plates (15). The adjusting sleeve (17) rotates at one end of the connecting sleeve (11) and is threadedly connected to the transmission sleeve (16).

2. The biodegradable material feeding device according to claim 1, characterized in that: The outer wall of the lifting frame (3) is provided with guide wheels (18), and the guide wheels (18) are provided in multiple sets, which are rotatably installed on both sides of the lifting frame (3) and respectively abut against the outer wall of the guide frame (2).

3. The biodegradable material feeding device according to claim 2, characterized in that: multiple sets The outer wall of the slider (13) is fixedly provided with guide blocks (19), and guide grooves (20) are opened in the multiple sets of slide grooves (12). The multiple sets of guide grooves (20) are slidably connected to the multiple sets of guide blocks (19).

4. The biodegradable material feeding device according to claim 3, characterized in that: The adjusting sleeve (17) is provided with a limiting rod (21), and the limiting rod (21) is provided in multiple sets and is slidably connected to the transmission sleeve (16).

5. The biodegradable material feeding device according to claim 4, characterized in that: All of the connecting plates (15) are configured as flexible plates.

6. The biodegradable material feeding device according to claim 5, characterized in that: The outer wall of the adjusting sleeve (17) is provided with a positioning mechanism, which includes an installation ring (22), a positioning block (23), a fixing ring (24), a slide bar (25), a clamping block (26), a positioning groove (27), and a tension spring (28). The installation ring (22) is fixed to the outer wall of the adjusting sleeve (17). Multiple sets of positioning blocks (23) are fixed to the bottom surface of the installation ring (22). The fixing ring (24) is fixed to the outer wall of the connecting sleeve (11). Multiple sets of slide bars (25) are distributed on the outer wall of the fixing ring (24). Multiple sets of clamping blocks (26) are respectively slid on the outer wall of the multiple sets of slide bars (25). The positioning groove (27) is located at the top of the multiple sets of clamping blocks (26). Multiple sets of tension springs (28) are respectively connected between the multiple sets of clamping blocks (26).

7. The biodegradable material feeding device according to claim 6, characterized in that: multiple sets Each of the slide bars (25) is fixedly provided with a baffle (29), and multiple sets of the baffles (29) abut against the inner side of multiple sets of clamping blocks (26).

8. The biodegradable material feeding device according to claim 7, characterized in that: The multiple sets of positioning blocks (23) and positioning grooves (27) are all set to be arc-shaped.