Roller conveying limiting structure compatible with multi-size materials
Through the design of the drive mechanism and limit structure, the problem of poor compatibility of traditional conveyor devices for materials of different sizes is solved, efficient and stable material transportation is achieved, and the continuous production and product quality are improved.
Patent Information
- Application Number
- CN202422238483.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-09-12
AI Technical Summary
Traditional conveyor devices have poor compatibility with materials of different sizes, low conveying efficiency and stability, and velocity fluctuations and path deviations are prone to occur when multiple feeding mechanisms work together, affecting production efficiency and product quality.
The first feeding mechanism is used to make the first feeding mechanism close to and away from the second feeding mechanism, and combined with the vertical or parallel arrangement of multiple rollers and limiting wheels, synchronous rotation is achieved through the sprocket chain, and precise limiting is used to drive the limiting plate of the cylinder to ensure stable transportation of materials in the horizontal and vertical directions.
It realizes efficient and stable transportation of materials of different sizes, improves production continuity and stability, reduces equipment failure rate and maintenance costs, and enhances the consistency and accuracy of transportation.
Smart Images
Figure CN223238718U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of material conveying, and in particular discloses a roller conveying limiting structure compatible with materials of multiple sizes. Background Art
[0002] In modern industrial production, material transportation is a vital link. Traditional conveying devices usually have a fixed structure, and the spacing between the feeding mechanisms cannot be adjusted, making it difficult to adapt to the conveying needs of materials of different sizes. This means that when faced with materials of various specifications, companies often need to equip multiple sets of conveying equipment, which increases costs and production space. Moreover, when transporting materials, previous feeding mechanisms often suffer from unstable material transportation and low efficiency due to unreasonable settings of rollers and limit wheels, as well as limitations of the transmission method. For example, improper settings of the rotation axis direction of the rollers and limit wheels can easily cause material deviation or jamming; imperfect transmission structure cannot ensure the synchronous rotation of multiple rollers, affecting the smoothness of transportation.
[0003] Furthermore, in some scenarios where multiple feeding mechanisms are required to work together, improper arrangement of the feeding mechanisms, such as inconsistent conveying directions and inaccurate support frame movement, can lead to speed fluctuations and path deviations during material conveying, thus affecting the consistency and quality of conveying, and reducing production efficiency and product quality. To address the problems of traditional conveying devices, such as poor compatibility with materials of different sizes, low conveying efficiency and stability, and poor conveying consistency and quality, this utility model proposes a roller conveyor limiter structure that is compatible with materials of multiple sizes. Utility Model Content
[0004] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the present invention is to provide a roller conveying limiting structure that is compatible with materials of multiple sizes.
[0005] To achieve the above-mentioned purpose, the utility model provides a roller conveying limiting structure compatible with materials of multiple sizes, including a base plate, a first feeding mechanism arranged on the base plate, a second feeding mechanism, a driving mechanism and a limiting mechanism. The limiting mechanism is arranged between the first feeding mechanism and the second feeding mechanism. The driving mechanism includes a first support frame arranged on the base plate for reciprocating motion, and a driving component that drives the first support frame to move. The first feeding mechanism is arranged on the first support frame, and the first feeding mechanism and the second feeding mechanism are respectively used to support the two ends of the workpiece away from each other; the driving component drives the first feeding mechanism to approach and / or away from the second feeding mechanism via the first support frame for conveying materials of different sizes, and the limiting mechanism supports the separation of the material from the feeding mechanism.
[0006] The drive mechanism moves the first feeding mechanism closer to and further away from the second feeding mechanism, enabling precise conveying of materials of varying sizes and improving both versatility and stability. The limiter mechanism supports materials out of transport and limits their position, enabling detection of materials that have left the transport state.
[0007] Furthermore, the driving assembly has a driving motor arranged on the first support frame, and a screw rod passing through the first support frame is provided on the output shaft of the driving motor. The end of the screw rod away from the driving motor is rotatably connected to the second feeding mechanism, a slider is provided on the first support frame, and a guide rail connected to the slider is provided on the base plate.
[0008] The combination of a drive motor and a lead screw provides precise and stable driving force, ensuring the precise and controllable reciprocating motion of the first support frame on the baseplate, enabling high-precision adjustment for the transport of materials of varying sizes. The combination of the slider and guide rail effectively reduces friction during movement, enabling smoother movement of the first support frame, minimizing energy loss and improving system efficiency. This drive method offers a simple structure and high reliability, reducing equipment failure rates, maintenance costs, and downtime, thereby enhancing production continuity and stability.
[0009] Furthermore, the first feeding mechanism has a first motor arranged on a first support frame, and a driving shaft passing through the first support frame is provided on the output shaft of the first motor, a roller is provided on the end of the driving shaft away from the first motor, and a sprocket is provided on the end of the driving shaft close to the first motor; a plurality of driven shafts passing through the first support frame are arranged in the length direction of the first support frame, the structure of the driven shaft is the same as that of the driving shaft, and a chain is provided between the sprockets on two adjacent shafts; the directions of the rotation axes of the plurality of rollers are parallel to each other.
[0010] The rollers have a low rolling friction coefficient, which can reduce resistance during material conveying, enabling fast and efficient conveying, thereby improving production efficiency. Roller conveying is highly adaptable to materials of various shapes and sizes, including both regular and irregular shaped objects. Multiple rollers rotate synchronously through a transmission method using sprockets and chains, ensuring that the materials are evenly and smoothly transported during the conveying process, avoiding deviation or damage to the materials due to uneven force. The first motor drives multiple driven shafts via the active shaft. This structural design improves power transmission efficiency, reduces energy loss, and lowers operating costs. The rotation axes of the multiple rollers are parallel to each other, ensuring the directionality and linearity of material conveying, and improving the accuracy and stability of conveying. The identical structure of each shaft facilitates the standardized production and replacement of parts, reducing production costs and maintenance difficulty.
[0011] Furthermore, the first support frame is rotatably provided with a plurality of limiting wheels that cooperate with the plurality of rollers and are used to limit the material, and the rotation axis directions of the plurality of limiting wheels are parallel to each other; the rotation axis directions of the rollers and the rotation axis directions of the limiting wheels are cross-set.
[0012] Multiple limiting wheels, working in conjunction with rollers, can limit material position from different directions, effectively preventing lateral deviation or tipping during conveying and ensuring stable and safe conveying. The parallel rotation axes of the limiting wheels ensure uniform and reliable limiting action, preventing material from breaking through the limit at any point. The rotation axes of the rollers intersect with those of the limiting wheels, creating a multi-dimensional limiting system that enhances control over material position and accommodates materials of various shapes and sizes.
[0013] Furthermore, the rotation axis of the roller is perpendicular to the rotation axis of the limiting wheel.
[0014] The roller's axis of rotation is perpendicular to that of the limiting wheel, precisely limiting the material's horizontal and vertical position. This maximizes the material's freedom of movement and ensures accurate and stable material delivery. This vertical setting provides the strongest restraining force, effectively preventing lateral and vertical material movement during conveying. This significantly improves conveying reliability, especially for materials with irregular shapes or unstable centers of gravity.
[0015] Furthermore, a receiving groove for accommodating a limiting mechanism is provided on the base plate, and the receiving groove is arranged between the first feeding mechanism and the second feeding mechanism. The limiting mechanism has a cylinder connected to the base plate, and a limiting plate is provided on the output shaft of the cylinder for supporting the material to rise from the feeding mechanism.
[0016] Using a pneumatic cylinder as a drive source offers the advantages of fast response, high output force, and high control precision. This allows for the rapid and accurate raising and lowering of the limit plate, enabling timely material limiting and release. The limit plate supports materials out of transport, effectively pausing their flow and providing stable conditions for subsequent processing, testing, or other operations, thereby improving the controllability of the production process. When the limit function is no longer required, the limit mechanism can be completely retracted within the trough, maintaining normal material flow and effectively integrating functionality and space.
[0017] Furthermore, a second support frame for carrying a second feeding mechanism is provided on the substrate, the second support frame is connected to the substrate, a fixing member is provided on the substrate for fixing the second support frame, the fixing member is connected to the second support frame, the number of the fixing members is set to multiple, and the multiple fixing members are arranged in the length direction of the second support frame.
[0018] The second support frame provides stable support for the second feeding mechanism, ensuring that it maintains a stable position and operating state during operation, thereby improving the accuracy and reliability of transportation. The use of fixings enhances the stability of the connection between the second support frame and the substrate, can effectively resist the vibration and impact force generated during transportation, and extend the service life of the equipment. Multiple fixings are arranged in the length direction of the second support frame, so that the supporting force is more evenly distributed, avoiding deformation or damage caused by excessive local force. This stable connection method helps to maintain the relative position accuracy between the second feeding mechanism and the first feeding mechanism, and ensures the accuracy of transportation and limiting of materials of different sizes.
[0019] Furthermore, the structure of the second feeding mechanism is the same as that of the first feeding mechanism.
[0020] The identical structural design ensures consistent performance of both feeding mechanisms when conveying materials, facilitating smooth and even material delivery. This identical structure facilitates maintenance and repair, facilitates unified procurement and management of parts, and reduces procurement costs and inventory pressure.
[0021] Furthermore, the number of sliders and the number of guide rails are respectively set to two, both ends of the first support frame in the length direction are respectively connected to the two sliders, and the length direction of the first support frame is perpendicular to the length direction of the guide rail.
[0022] The provision of two sliders and two guide rails can provide more balanced and stable support and guidance for the first support frame, making it less likely to tilt or jam during reciprocating motion, thereby ensuring the smoothness and precision of the motion. The two ends of the first support frame in the length direction are respectively connected to the sliders, making the force distribution more uniform, reducing structural deformation or damage caused by local force concentration, and extending the service life of the first support frame. The stable guiding and supporting structure helps to reduce friction and wear during movement, reduces energy loss, and improves the operating efficiency and energy-saving effect of the equipment. The configuration of two sliders and guide rails increases the carrying capacity of the system, can adapt to heavier loads and more complex working conditions, and improves the versatility and reliability of the equipment.
[0023] Furthermore, the length direction of the first support frame and the length direction of the second support frame are parallel to each other.
[0024] The parallel setting ensures that the first feeding mechanism and the second feeding mechanism can maintain synchronization and consistency when conveying materials, which is conducive to the smooth transmission of materials and reduces material jamming or damage caused by inconsistent conveying paths.
[0025] The beneficial effects of the present invention are as follows: by driving the first feeding mechanism to approach and / or move away from the second feeding mechanism through the driving mechanism, the compatibility and versatility of the feeding mechanism for materials of different sizes can be better achieved; the perpendicular arrangement between the rotation axis directions of multiple rollers and the rotation axis directions of multiple limiting wheels and the arrangement of the sprocket chain can better achieve the efficiency and stability of the feeding mechanism in transporting materials of different sizes; the parallel arrangement ensures that the conveying directions of the first feeding mechanism and the second feeding mechanism are consistent, and the vertical guide rail arrangement ensures the accuracy of the movement of the first support frame. The combination of the two enables the material to maintain a stable conveying path and speed during the entire conveying process, thereby improving the consistency and quality of the conveying. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 This is a first overall structural diagram of a roller conveying limiting structure compatible with materials of multiple sizes according to the present invention;
[0027] Figure 2 This is a second overall structural diagram of the present utility model;
[0028] Figure 3 It is a schematic diagram of the local structure of the utility model;
[0029] Figure 4 This is a structural diagram of the first feeding mechanism of the present utility model;
[0030] Figure 5 This is a partial structural diagram of the first feeding mechanism of the present utility model;
[0031] Figure 6 It is a structural diagram of the limiting mechanism of the utility model.
[0032] The accompanying drawings include: 1. base plate; 11. accommodating groove; 12. fixing part; 2. first feeding mechanism; 21. first motor; 22. driving shaft; 23. driven shaft; 24. roller; 25. sprocket; 26. chain; 27. limiting wheel; 3. second feeding mechanism; 31. second support frame; 4. driving mechanism; 41. driving assembly; 411. driving motor; 412. screw rod; 413. slider; 414. guide rail; 42. first support frame; 5. limiting mechanism; 51. cylinder; 52. limiting plate. DETAILED DESCRIPTION
[0033] In order to facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and drawings. The contents mentioned in the embodiments are not intended to limit the present invention.
[0034] See also Figures 1 to 6As shown, the utility model is a roller 24 conveying and limiting structure compatible with materials of multiple sizes, including a substrate 1, a first feeding mechanism 2 arranged on the substrate 1, a second feeding mechanism 3, a driving mechanism 4 and a limiting mechanism 5, the limiting mechanism 5 is arranged between the first feeding mechanism 2 and the second feeding mechanism 3, the driving mechanism 4 includes a first support frame 42 arranged on the substrate 1 for reciprocating movement, and a driving component 41 for driving the first support frame 42 to move, the first feeding mechanism 2 is arranged on the first support frame 42, the first feeding mechanism 2 and the second feeding mechanism 3 are respectively used to support the two ends of the workpiece away from each other; the driving component 41 drives the first feeding mechanism 2 to approach and / or away from the second feeding mechanism 3 via the first support frame 42 for conveying materials of different sizes, and the limiting mechanism 5 supports the material to detach from the feeding mechanism.
[0035] In actual use, the driving mechanism 4 moves the first feeding mechanism 2 toward and away from the second feeding mechanism 3, achieving precise conveying of materials of different sizes and improving the versatility and stability of conveying. The limiting mechanism 5 can support the material out of the transport state for limiting, and can detect materials that have left the transport state.
[0036] Specifically, the driving assembly 41 has a driving motor 411 arranged on the first support frame 42, and a screw rod 412 passing through the first support frame 42 is provided on the output shaft of the driving motor 411. The end of the screw rod 412 away from the driving motor 411 is rotatably connected to the second feeding mechanism 3, a slider 413 is provided on the first support frame 42, and a guide rail 414 connected to the slider 413 is provided on the substrate 1.
[0037] In actual use, the combination of drive motor 411 and screw 412 provides precise and stable driving force, ensuring the precise and controllable reciprocating motion of first support frame 42 on substrate 1, thereby achieving high-precision adjustment for the transport of materials of different sizes. The cooperation between slider 413 and guide rail 414 effectively reduces friction during movement, making the movement of first support frame 42 smoother, reducing energy loss, and improving the operating efficiency of the system. This drive method has a simple structure and high reliability, reducing equipment failure rate, maintenance costs and downtime, and promoting the continuity and stability of production.
[0038] Specifically, the first feeding mechanism 2 has a first motor 21 arranged on a first support frame 42, and a driving shaft 22 passing through the first support frame 42 is provided on the output shaft of the first motor 21, and a roller 24 is provided at the end of the driving shaft 22 away from the first motor 21, and a sprocket 25 is provided at the end of the driving shaft 22 close to the first motor 21; a plurality of driven shafts 23 passing through the first support frame 42 are arranged in the length direction of the first support frame 42, and the structure of the driven shaft 23 is the same as that of the driving shaft 22, and a chain 26 is provided between the sprockets 25 on two adjacent shafts; the directions of the rotation axes of the plurality of rollers 24 are parallel to each other.
[0039] In actual use, the rolling friction coefficient of the roller 24 is small, which can reduce the resistance of the material during transportation, achieve fast and efficient transportation, and thus improve production efficiency. The roller 24 conveying has good adaptability to materials of various shapes and sizes, including objects of regular and irregular shapes. Multiple rollers 24 are rotated synchronously through the transmission method of sprockets 25 and chains 26, ensuring that the material is evenly stressed and smoothly conveyed during transportation, avoiding displacement or damage of the material due to uneven force. The first motor 21 drives the multiple driven shafts 23 to rotate through the driving shaft 22. This structural design improves the power transmission efficiency, reduces energy loss, and reduces operating costs. The directions of the rotation axes of the multiple rollers 24 are parallel to each other, ensuring the directionality and linearity of material transportation, and improving the accuracy and stability of transportation. The structure of each shaft is the same, which facilitates the standardized production and replacement of parts, reducing production costs and maintenance difficulties.
[0040] Specifically, a plurality of limiting wheels 27 are rotatably provided on the first support frame 42 to cooperate with the plurality of rollers 24 and to limit the material. The rotation axis directions of the plurality of limiting wheels 27 are parallel to each other; the rotation axis directions of the rollers 24 and the limiting wheels 27 are cross-set.
[0041] In actual use, multiple limiting wheels 27 cooperate with rollers 24 to limit the material's position from different directions, effectively preventing lateral deviation or flipping during conveyance and ensuring stable and safe conveying. The parallel rotation axes of the limiting wheels 27 ensure uniform and reliable limiting action, preventing the material from breaking through the limit at any point. The rotation axes of the rollers 24 and the limiting wheels 27 are arranged in an intersecting direction, forming a multi-dimensional limiting system that enhances control over the material's position and accommodates materials of various shapes and sizes.
[0042] Specifically, the rotation axis of the roller 24 and the rotation axis of the limiting wheel 27 are arranged perpendicularly.
[0043] In actual use, the rotation axis of roller 24 is perpendicular to that of limiting wheel 27, enabling precise positioning of materials in both horizontal and vertical dimensions, maximally restricting their freedom of movement and ensuring accurate and stable material delivery. This vertical arrangement provides the strongest restraining force, effectively preventing lateral and vertical deviation of materials during conveyance. This significantly improves conveying reliability, especially for materials with irregular shapes or unstable centers of gravity.
[0044] Specifically, a receiving groove 11 for accommodating a limiting mechanism 5 is provided on the substrate 1. The receiving groove 11 is arranged between the first feeding mechanism 2 and the second feeding mechanism 3. The limiting mechanism 5 has a cylinder 51 connected to the substrate 1. The output shaft of the cylinder 51 is provided with a limiting plate 52 for supporting the material to rise from the feeding mechanism.
[0045] In actual use, the cylinder 51 is used as the driving source, which has the advantages of fast response speed, high output force, and high control precision. It can quickly and accurately raise or lower the limit plate 52 to achieve timely limiting and release of materials. The limit plate 52 can support the material out of the transport state, effectively suspending the material transportation, providing stable conditions for subsequent processing, testing or other operations, and improving the controllability of the production process. When the limit function is not needed, the limit mechanism 5 can be completely stored in the accommodating groove 11 without affecting normal material transportation, realizing an effective combination of function and space.
[0046] Specifically, a second support frame 31 for carrying the second feeding mechanism 3 is provided on the substrate 1, and the second support frame 31 is connected to the substrate 1. A fixing part 12 is provided on the substrate 1 for fixing the second support frame 31, and the fixing part 12 is connected to the second support frame 31. The number of fixing parts 12 is set to multiple, and the multiple fixing parts 12 are arranged in the length direction of the second support frame 31.
[0047] In actual use, the second support frame 31 provides stable support for the second feeding mechanism 3, ensuring that it maintains a stable position and operating state during operation, thereby improving the accuracy and reliability of transportation. The use of the fixing member 12 enhances the stability of the connection between the second support frame 31 and the substrate 1, and can effectively resist the vibration and impact force generated during transportation, thereby extending the service life of the equipment. Multiple fixing members 12 are arranged in the length direction of the second support frame 31, so that the supporting force is distributed more evenly, avoiding deformation or damage caused by excessive local force. This stable connection method helps to maintain the relative position accuracy between the second feeding mechanism 3 and the first feeding mechanism 2, and ensures the accuracy of transportation and limiting of materials of different sizes.
[0048] Specifically, the structure of the second feeding mechanism 3 is the same as that of the first feeding mechanism 2 .
[0049] In actual use, the identical structural design ensures consistent performance of the two feeding mechanisms when conveying materials, facilitating smooth and uniform material delivery. The identical structure also facilitates maintenance and repair, facilitates unified procurement and management of parts, and reduces procurement costs and inventory pressure.
[0050] Specifically, the number of sliders 413 and the number of guide rails 414 are respectively set to two, and the two ends of the first support frame 42 in the length direction are respectively connected to the two sliders 413, and the length direction of the first support frame 42 is perpendicular to the length direction of the guide rail 414.
[0051] In actual use, two sliders 413 and two guide rails 414 are provided to provide more balanced and stable support and guidance for the first support frame 42, making it less likely to tilt or jam during reciprocating motion, thereby ensuring the smoothness and accuracy of the motion. The two ends of the first support frame 42 in the length direction are respectively connected to the sliders 413, so that the force distribution is more uniform, reducing structural deformation or damage caused by local force concentration, and extending the service life of the first support frame 42. The stable guiding and supporting structure helps to reduce friction and wear during movement, reduces energy loss, and improves the operating efficiency and energy-saving effect of the equipment. The configuration of the two sliders 413 and the guide rails 414 increases the carrying capacity of the system, can adapt to heavier loads and more complex working conditions, and improves the versatility and reliability of the equipment.
[0052] Specifically, the length direction of the first support frame 42 and the length direction of the second support frame 31 are parallel to each other.
[0053] In actual use, the parallel setting ensures that the first feeding mechanism 2 and the second feeding mechanism 3 can maintain synchronization and consistency when conveying materials, which is conducive to the smooth transmission of materials and reduces material jams or damage caused by inconsistent conveying paths.
[0054] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation methods and application scope. The content of this specification should not be understood as limiting the present invention.
Claims
1. A roller (24) conveying and limiting structure compatible with materials of various sizes, characterized by: The invention comprises a substrate (1), a first feeding mechanism (2) arranged on the substrate (1), a second feeding mechanism (3), a driving mechanism (4) and a limiting mechanism (5); the limiting mechanism (5) is arranged between the first feeding mechanism (2) and the second feeding mechanism (3); the driving mechanism (4) comprises a first support frame (42) arranged on the substrate (1) for reciprocating motion, and a driving component (41) for driving the first support frame (42) to move; the first feeding mechanism (2) is arranged on the first support frame (42); the first feeding mechanism (2) and the second feeding mechanism (3) are respectively used to support two ends of a workpiece away from each other; the driving component (41) drives the first feeding mechanism (2) to approach and / or move away from the second feeding mechanism (3) via the first support frame (42) for conveying materials of different sizes; and the limiting mechanism (5) supports the separation of the materials from the feeding mechanism.
2. The roller (24) conveying and limiting structure compatible with materials of multiple sizes according to claim 1 is characterized in that: The driving assembly (41) comprises a driving motor (411) arranged on a first supporting frame (42); a screw rod (412) penetrating the first supporting frame (42) is provided on an output shaft of the driving motor (411); an end of the screw rod (412) away from the driving motor (411) is rotatably connected to the second feeding mechanism (3); a slider (413) is provided on the first supporting frame (42); and a guide rail (414) connected to the slider (413) is provided on the base plate (1).
3. The roller (24) conveying and limiting structure compatible with materials of multiple sizes according to claim 1 is characterized in that: The first feeding mechanism (2) comprises a first motor (21) arranged on a first support frame (42); a driving shaft (22) penetrating the first support frame (42) is provided on the output shaft of the first motor (21); a roller (24) is provided at one end of the driving shaft (22) away from the first motor (21); a sprocket (25) is provided at one end of the driving shaft (22) close to the first motor (21); a plurality of driven shafts (23) penetrating the first support frame (42) are arranged in a longitudinal direction of the first support frame (42); the structure of the driven shafts (23) is the same as that of the driving shaft (22); a chain (26) is provided between the sprockets (25) on two adjacent shafts; and the rotation axis directions of the plurality of rollers (24) are parallel to each other.
4. The roller (24) conveying and limiting structure compatible with materials of multiple sizes according to claim 3 is characterized in that: A plurality of limiting wheels (27) are rotatably provided on the first support frame (42) and cooperate with the plurality of rollers (24) and are used to limit the position of materials. The rotation axis directions of the plurality of limiting wheels (27) are parallel to each other; the rotation axis directions of the plurality of rollers (24) and the rotation axis directions of the plurality of limiting wheels (27) are arranged to intersect.
5. The roller (24) conveying and limiting structure compatible with materials of multiple sizes according to claim 4 is characterized in that: The rotation axis of the roller (24) and the rotation axis of the limiting wheel (27) are arranged perpendicularly.
6. The roller (24) conveying and limiting structure compatible with materials of multiple sizes according to claim 1 is characterized in that: A receiving groove (11) for receiving a limiting mechanism (5) is provided on the base plate (1), and the receiving groove (11) is arranged between the first feeding mechanism (2) and the second feeding mechanism (3). The limiting mechanism (5) has a cylinder (51) connected to the base plate (1), and a limiting plate (52) for supporting the material to rise from the feeding mechanism is provided on the output shaft of the cylinder (51).
7. The roller (24) conveying and limiting structure compatible with materials of multiple sizes according to claim 1 is characterized in that: A second support frame (31) for carrying the second feeding mechanism (3) is provided on the substrate (1), the second support frame (31) is connected to the substrate (1), a fixing member (12) is provided on the substrate (1) for fixing the second support frame (31), the fixing member (12) is connected to the second support frame (31), the number of the fixing members (12) is set to be multiple, and the multiple fixing members (12) are arranged in a longitudinal direction of the second support frame (31).
8. The roller (24) conveying and limiting structure compatible with materials of multiple sizes according to claim 1 is characterized in that: The structure of the second feeding mechanism (3) is the same as that of the first feeding mechanism (2).
9. The roller (24) conveying and limiting structure compatible with materials of multiple sizes according to claim 2 is characterized in that: The number of the sliders (413) and the number of the guide rails (414) are respectively set to two, and the two ends of the first support frame (42) in the length direction are respectively connected to the two sliders (413), and the length direction of the first support frame (42) is perpendicular to the length direction of the guide rails (414).
10. The roller (24) conveying and limiting structure compatible with materials of multiple sizes according to claim 7, characterized in that: The length direction of the first support frame (42) and the length direction of the second support frame (31) are parallel to each other.