Adjustable material conveying limiting mechanism for detection

Abstract

The utility model relates to the technical field of material conveying, in particular to an adjustable material conveying limiting mechanism for detection, which comprises a base, a feeding module and a limiting module, the feeding module and the limiting module are arranged on the base, and the feeding module comprises a first feeding component, a second feeding component and an adjusting component. The adjusting assembly comprises a bearing frame arranged on the base in a reciprocating motion mode and a driver for driving the bearing frame to move, the first feeding assembly is arranged on the bearing frame, the limiting module comprises two limiting assemblies of the same structure, and the two limiting assemblies are arranged on the first feeding assembly and the second feeding assembly correspondingly; a detection area is defined by the first feeding assembly, the second feeding assembly and the two sets of limiting assemblies, the external detector detects detection products located in the detection area, and the driver drives the first feeding assembly to be close to and / or away from the second feeding assembly through the bearing frame to be used for conveying materials of different sizes and changing the range of the detection area.

Description

Technical Field

[0001] The utility model relates to the technical field of material conveying, and in particular discloses an adjustable material conveying limiting mechanism for detection. Background Art

[0002] In previous material inspection and conveying technologies, common conveyor limiter mechanisms suffered from significant drawbacks. Typically, the feeder components of these mechanisms were fixed in structure, unable to flexibly adjust their position based on material size. The inspection area was also fixed, making it difficult to adapt to a wide range of material sizes. This resulted in poor inspection versatility and difficulty ensuring accuracy. During the material conveying and inspection process, the lack of effective limiter measures made it easy for the material position to become unstable, resulting in significant errors and significantly impacting product inspection quality.

[0003] Furthermore, traditional conveying and adjustment methods rely heavily on manual operation, which is not only inefficient but also significantly increases labor intensity and costs. Poor coordination between components and slow response times lead to high failure rates and a relatively short equipment lifespan. Therefore, an adjustable material conveying limit mechanism with detection capabilities is urgently needed to address these issues. 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 an adjustable material conveying limit mechanism for detection.

[0005] To achieve the above-mentioned purpose, the utility model provides an adjustable material conveying limit mechanism for detection, comprising a base, a feeding module and a limit module arranged on the base, the feeding module comprising a first feeding component, a second feeding component and an adjustment component, the adjustment component comprising a carrier frame arranged on the base for reciprocating motion, a driver driving the carrier frame to move, the first feeding component being arranged on the carrier frame, the limit module comprising two groups of limit components with the same structure, the two groups of limit components being respectively arranged on the first feeding component and the second feeding component, the first feeding component and the second feeding component being respectively used to support two ends of the material away from each other, and the two groups of limit components being respectively used to limit the two ends of the material away from each other;

[0006] The first feeding assembly, the second feeding assembly and two sets of limit assemblies are arranged to form a detection area. The external detector detects the test objects in the detection area. The driver drives the first feeding assembly to approach and / or move away from the second feeding assembly via the carrier to transport materials of different sizes and change the range of the detection area.

[0007] The coordination of the first and second feeding assemblies, along with the two sets of position limiters, ensures stable material positioning during transportation and testing, improving the accuracy and reliability of test results. The adjustable design allows for flexible changes in the detection area, making testing more precise and efficient. This improves the versatility and adaptability of the test, enabling it to handle materials of varying sizes and meet diverse testing needs.

[0008] Furthermore, a mounting seat is provided on the base, and the driver has an adjusting motor arranged on the mounting seat, a first gear is provided on the output shaft of the adjusting motor, a second gear is rotatably provided on the mounting seat, a synchronous belt is sleeved on the outer side of the first gear and the outer side of the second gear, a screw rod is provided on the second gear, a supporting block is provided on the supporting frame, the screw rod passes through the supporting block and is screwed to the supporting block, and the end of the screw rod away from the supporting block is rotatably connected to the second feeding mechanism, a guide rail is provided on the base, a slider is provided on the supporting block, and the slider is connected to the guide rail.

[0009] This structural design ensures stable and precise power transmission from the driver. By adjusting the coordination of the motor, gears, and timing belt, the screw's rotation can be precisely controlled, achieving precise displacement of the carrier, improving the equipment's adaptability to materials of varying sizes. The threaded connection between the screw and the carrier block converts rotational motion into linear motion, resulting in high transmission efficiency, the ability to withstand heavy loads, and ensuring smooth and reliable movement of the carrier. The combination of the guide rails and sliders provides guidance and support for the carrier's movement, further ensuring linearity and stability, reducing motion deviation, and improving conveying and adjustment accuracy.

[0010] Furthermore, the limiting assembly has a limiting plate arranged on the supporting frame, and the limiting plate protrudes downward from one end of the supporting frame to form a stop plate, which is used to stop the end of the free end of the interfering material; a first limiting cylinder is provided on the supporting frame, and a first limiting member is provided at the output end of the first limiting cylinder, and the first limiting member is used to stop the free end on the side of the feeding direction of the interfering material; a second limiting cylinder is provided on the supporting frame, and an adjusting plate is provided at the output end of the second limiting cylinder, and the adjusting plate is provided with a free end for stopping the upward side of the interfering material.

[0011] The design of the limit plate and its stop plate can effectively block the end of the free end of the material, preventing the material from excessively moving or deviating from the predetermined position during the conveying process, thereby improving the stability and accuracy of material conveying. The cooperation between the first limit cylinder and the first limit member can perform limiting interference from the side of the material feeding direction, further enhancing the restriction on the lateral movement of the material and ensuring the directional stability of the material during the conveying process. The second limit cylinder, the adjustment plate, and its stop interference on the free end of the upward side of the material realize the vertical limitation of the material, comprehensively restricting the freedom of the material, so that the material maintains a stable posture during the conveying and testing process.

[0012] Furthermore, the first feeding assembly has a first motor arranged on a supporting frame, and a rotating shaft passing through the supporting frame is provided on the output shaft of the first motor, and a needle roller for supporting the transportation of materials is provided on one end of the rotating shaft passing through the supporting frame, and a sprocket is provided on the end of the rotating shaft away from the needle roller; the number of rotating shafts, the number of needle rollers and the number of sprockets are set to multiple, and a chain is provided between the sprockets on two adjacent rotating shafts.

[0013] The arrangement of multiple shafts, needle rollers, and sprockets, along with chain connections, creates a stable and synchronized transmission system, ensuring smooth and consistent material transport. The sprocket and chain transmission method offers high efficiency and reliability, effectively transmitting motor power to each shaft and minimizing energy loss. The distribution of multiple needle rollers provides better support for the material, distributing its weight and reducing pressure on individual support points, thereby minimizing needle roller wear and extending its service life.

[0014] Furthermore, the base has two bottom plates arranged on the external bearing plane, and the number of bearing blocks is set to two, and the two bearing blocks are respectively arranged on the two bottom plates for supporting the two ends of the bearing frame in the length direction; the number of second gears is set to two, and the two second gears are respectively rotatably arranged on the two bearing blocks, and the connection direction of the two second gears is perpendicular to the connection direction of the first gear and the second gear arranged on the same bearing block; a third gear is rotatably provided on the bearing block, and a synchronous belt is arranged on the outside of the first gear, the second gear and the third gear, and the third gear and the first gear are arranged on the same bearing block for adjusting the tension of the synchronous belt.

[0015] The two base plates and two bearing blocks provide more stable support for both ends of the carrier, ensuring balance during movement, reducing sway and tilt, and improving operational stability. A rational gear layout and tension adjustment mechanism enhance transmission stability and balance, making the carrier's movement smoother and more precise, extending the service life of the timing belt, reducing the frequency of belt replacement, and lowering equipment maintenance costs.

[0016] Furthermore, the number of limit plates, the number of first limit members and the number of second limit members are set to multiple, the first limit member is set between two adjacent limit plates, and the second limit member is set between two adjacent first limit members; a limit groove is provided on the supporting frame for accommodating the first limit member.

[0017] The provision of multiple limiting plates, first limiting members, and second limiting members limits materials from multiple directions and positions, greatly improving the stability and reliability of the limiting mechanism and effectively preventing material displacement during transportation. The limiting slot provides space for the first limiting member to be stored when not in operation, avoiding interference with the normal transportation of materials. This also protects the first limiting member, reducing the risk of external collisions and damage. This enhanced limiting effect helps improve the precision and accuracy of material transportation, thereby enhancing the quality of subsequent processing or testing operations.

[0018] Furthermore, a coupling is provided between the output shaft of the first motor and the rotating shaft, the rotation axes of the plurality of needle rollers are parallel to each other, and the plurality of rotating shafts are arranged in the length direction of the carrier.

[0019] The coupling effectively compensates for installation errors between the first motor's output shaft and the rotating shaft, ensuring smoother power transmission, reduced vibration and noise, and extending the life of the motor and rotating shaft. The parallel rotational axes of the multiple needle rollers ensure uniform force distribution during material conveying, preventing material tilting or twisting due to uneven force distribution and ensuring stable and accurate conveying. The multiple rotating shafts arranged along the length of the support frame provide more uniform support and conveying of materials, increasing the contact area between the material and the needle rollers, distributing the material's weight, and reducing the load-bearing pressure on individual rotating shafts and needle rollers, thereby extending the equipment's service life.

[0020] Furthermore, the first feeding assembly and the second feeding assembly have the same structure.

[0021] The same structure can provide the same feeding performance and accuracy, ensuring that the material remains balanced and stable during the transportation process at both ends, improving the overall feeding quality.

[0022] Furthermore, the rotation axes of the first gear, the second gear and the third gear are parallel to each other.

[0023] When the rotational axes of the first, second, and third gears are parallel, transmission between them is smoother, reducing vibration and impact caused by non-parallel axes, thereby reducing noise and energy loss. Parallel axes help maintain the meshing precision between the gears, thereby improving transmission accuracy and reliability and reducing transmission errors.

[0024] Furthermore, the carrier is provided with a sensor for detecting the position of the material, and the number of the sensors is set to be multiple.

[0025] The use of multiple sensors can detect the position of materials from different locations and angles, providing more comprehensive and accurate position information and reducing detection errors. This position information is fed back to the control system, facilitating timely adjustments to parameters such as feeding speed and direction, ensuring accurate and stable material delivery.

[0026] The beneficial effects of this utility model are: adapting to materials of different sizes, flexibly changing the detection area, and improving the versatility and accuracy of detection; ensuring the stability of the position during material transportation and detection, reducing errors, and improving the quality of product detection; realizing automatic transportation adjustment, improving production efficiency, and reducing labor intensity and costs; various components work together, respond quickly, reduce the failure rate, and extend the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of an adjustable material conveying limit mechanism for detection in the utility model;

[0028] Figure 2 It is a structural diagram of the utility model;

[0029] Figure 3 It is a structural diagram of the utility model;

[0030] Figure 4 It is a structural diagram of the utility model;

[0031] Figure 5 It is a structural diagram of the utility model;

[0032] Figure 6 It is a structural diagram of the present utility model.

[0033] The reference numerals include: 1, base; 11, bottom plate; 12, mounting base; 2, feeding module; 21, first feeding assembly; 211, first motor; 212, rotating shaft; 213, needle roller; 214, sprocket; 215, chain; 216, coupling; 22, second feeding assembly; 23, adjusting assembly; 231, carrier; 232, driver; 2321, adjusting motor; 2322, first gear; 2323, second Gear; 2324, synchronous belt; 2325, screw rod; 2326, slider; 2327, guide rail; 2328, third gear; 233, bearing block; 3, limit module; 31, limit assembly; 311, limit plate; 312, stop plate; 313, first limit cylinder; 314, first limit member; 315, second limit cylinder; 316, adjustment plate; 317, second limit member; 4, detection area; 5, sensor. DETAILED DESCRIPTION

[0034] 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.

[0035] See also Figures 1 to 6 As shown, the utility model of the utility model is an adjustable material conveying limit mechanism for detection, including a base 1, a feeding module 2 and a limit module 3 arranged on the base 1, the feeding module 2 includes a first feeding component 21, a second feeding component 22 and an adjusting component 23, the adjusting component 23 includes a carrier 231 reciprocatingly arranged on the base 1, and a driver 232 driving the carrier 231 to move, the first feeding component 21 is arranged on the carrier 231, the limit module 3 includes two groups of limit components 31 with the same structure, the two groups of limit components 31 are respectively arranged on the first feeding component 21 and the second feeding component 22, the first feeding component 21 and the second feeding component 22 are respectively used to support the two ends of the material away from each other, and the two groups of limit components 31 are respectively used to limit the two ends of the material away from each other;

[0036] The first feeding assembly 21, the second feeding assembly 22 and the two sets of limiting assemblies 31 are arranged to form a detection area 4. The external detector detects the inspection products in the detection area 4. The driver 232 drives the first feeding assembly 21 to approach and / or move away from the second feeding assembly 22 via the carrier 231 to transport materials of different sizes and change the range of the detection area 4.

[0037] In actual use, the coordination of the first and second feeding assemblies 21, 22, and the provision of two sets of position limiting assemblies 31 ensure the stable position of materials during transportation and testing, improving the accuracy and reliability of test results. The adjustable design allows for flexible changes in the scope of the detection area 4, making testing more accurate and efficient, and improving the versatility and adaptability of the test, capable of handling materials of different sizes and meeting diverse testing needs.

[0038] Specifically, a mounting base 12 is provided on the base 1, and the driver 232 has an adjusting motor 2321 arranged on the mounting base 12, a first gear 2322 is provided on the output shaft of the adjusting motor 2321, and a second gear 2323 is rotatably provided on the mounting base 12, and a synchronous belt 2324 is sleeved on the outer side of the first gear 2322 and the outer side of the second gear 2323, and a screw rod 2325 is provided on the second gear 2323, and a supporting block 233 is provided on the supporting frame 231, the screw rod 2325 passes through the supporting block 233 and is screwed to the supporting block 233, and the end of the screw rod 2325 away from the supporting block 233 is rotatably connected to the second feeding mechanism, a guide rail 2327 is provided on the base 1, and a slider 2326 is provided on the supporting block 233, and the slider 2326 is connected to the guide rail 2327.

[0039] In actual use, this structural design ensures stable and precise power transmission from driver 232. By adjusting the coordination between motor 2321, gears, and timing belt 2324, the rotation of screw 2325 can be accurately controlled, thereby achieving precise displacement of carrier 231 and improving the equipment's adaptability to materials of varying sizes. The threaded connection between screw 2325 and carrier block 233 converts rotational motion into linear motion, resulting in high transmission efficiency and the ability to withstand heavy loads, ensuring the stability and reliability of carrier 231 during movement. The coordination between guide rail 2327 and slider 2326 provides guidance and support for the movement of carrier 231, further ensuring the linearity and stability of carrier 231's motion, reducing motion deviation, and improving the accuracy of conveying and adjustment.

[0040] Specifically, the limiting assembly 31 has a limiting plate 311 arranged on the supporting frame 231, and the end of the limiting plate 311 away from the supporting frame 231 protrudes downward to form a stop plate 312, and the stop plate 312 is used to stop the end of the free end of the interfering material; a first limiting cylinder 313 is provided on the supporting frame 231, and a first limiting member 314 is provided at the output end of the first limiting cylinder 313, and the first limiting member 314 is used to stop the free end on the side of the feeding direction of the interfering material; a second limiting cylinder 315 is provided on the supporting frame 231, and an adjusting plate 316 is provided at the output end of the second limiting cylinder 315, and the adjusting plate 316 is provided with a free end for stopping the upward side of the interfering material.

[0041] In actual use, the design of the limiting plate 311 and its stop plate 312 can effectively block the end of the free end of the material, preventing the material from excessively moving or deviating from the predetermined position during the conveying process, thereby improving the stability and accuracy of material conveying. The cooperation between the first limiting cylinder 313 and the first limiting member 314 can limit the material from the side of the feeding direction, further strengthening the restriction on the lateral movement of the material and ensuring the directional stability of the material during the conveying process. The second limiting cylinder 315, the adjustment plate 316, and its stop against the free end of the upward side of the material achieve vertical limitation of the material, comprehensively restricting the material's degree of freedom, so that the material maintains a stable posture during the conveying and testing process.

[0042] Specifically, the first feeding assembly 21 has a first motor 211 arranged on a carrier 231, and a rotating shaft 212 passing through the carrier 231 is provided on the output shaft of the first motor 211, and a needle roller 213 for supporting the transportation of materials is provided on one end of the rotating shaft 212 passing through the carrier 231, and a sprocket 214 is provided on the end of the rotating shaft 212 away from the needle roller 213; the number of rotating shafts 212, the number of needle rollers 213 and the number of sprockets 214 are set to multiple, and a chain 215 is provided between the sprockets 214 on two adjacent rotating shafts 212.

[0043] In actual use, the arrangement of multiple rotating shafts 212, needle rollers 213, and sprockets 214, along with the transmission connection of chains 215, form a stable and synchronized transmission system, ensuring smooth and consistent material transportation. The transmission method of sprockets 214 and chains 215 offers high efficiency and reliability, effectively transmitting motor power to each rotating shaft 212 and reducing energy loss. The distribution of multiple needle rollers 213 provides better support for the material, distributing its weight and reducing pressure on individual support points. This reduces wear on the needle rollers 213 and extends their service life.

[0044] Specifically, the base 1 has two bottom plates 11 arranged on the external bearing plane, the number of bearing blocks 233 is set to two, and the two bearing blocks 233 are respectively arranged on the two bottom plates 11 for supporting the two ends of the bearing frame 231 in the length direction; the number of second gears 2323 is set to two, and the two second gears 2323 are respectively rotatably set on the two bearing blocks 233, and the connection direction of the two second gears 2323 is perpendicular to the connection direction between the first gear 2322 and the second gear 2323 set on the same bearing block 233; a third gear 2328 is rotatably provided on the bearing block 233, and the synchronous belt 2324 is sleeved on the outside of the first gear 2322, the second gear 2323 and the third gear 2328. The third gear 2328 and the first gear 2322 are arranged on the same bearing block 233 for adjusting the tension of the synchronous belt 2324.

[0045] In actual use, the arrangement of two base plates 11 and two bearing blocks 233 provides more stable support for both ends of the carrier 231, ensuring that the carrier 231 maintains balance during movement, reducing shaking and tilting, and improving the operational stability of the equipment. A rational gear layout and tension adjustment mechanism enhance the stability and balance of the transmission, making the movement of the carrier 231 smoother and more precise, extending the service life of the synchronous belt 2324, reducing the frequency of replacement of the synchronous belt 2324, and lowering the maintenance cost of the equipment.

[0046] Specifically, the number of the limiting plates 311, the number of the first limiting members 314 and the number of the second limiting members 317 are set to multiple, the first limiting member 314 is set between two adjacent limiting plates 311, and the second limiting member 317 is set between two adjacent first limiting members 314; a limiting groove for accommodating the first limiting member 314 is provided on the supporting frame 231.

[0047] In actual use, the arrangement of multiple limiting plates 311, first limiting members 314, and second limiting members 317 limits the material from multiple directions and positions, greatly improving the stability and reliability of the limiting mechanism and effectively preventing material displacement during conveying. The limiting groove provides space for the first limiting member 314, allowing it to be stored when not in operation, avoiding interference with the normal conveying of materials. This also protects the first limiting member 314, reducing the risk of external impact and damage. This enhanced limiting effect helps improve the precision and accuracy of material conveying, thereby enhancing the quality of subsequent processing or testing operations.

[0048] Specifically, a coupling 216 is provided between the output shaft of the first motor 211 and the rotating shaft 212 . The rotation axes of the plurality of needle rollers 213 are parallel to each other. The plurality of rotating shafts 212 are arranged in a longitudinal direction of the supporting frame 231 .

[0049] In actual use, the arrangement of coupling 216 can effectively compensate for installation errors between the output shaft of first motor 211 and rotating shaft 212, ensuring smoother power transmission, reducing vibration and noise, and extending the service life of the motor and rotating shaft 212. The parallel rotational axes of the multiple needle rollers 213 ensure uniform force distribution during material conveying, preventing material tilting or twisting due to uneven force distribution, and ensuring stable and accurate conveying. The arrangement of multiple rotating shafts 212 along the length of support frame 231 enables more uniform support and conveying of material, increases the contact area between the material and needle rollers 213, disperses the weight of the material, and reduces the load-bearing pressure of individual rotating shafts 212 and needle rollers 213, thereby extending the service life of the equipment.

[0050] Specifically, the first feeding assembly 21 and the second feeding assembly 22 have the same structure.

[0051] In actual use, the same structure can provide the same feeding performance and accuracy, ensuring that the material remains balanced and stable during the transportation process at both ends, thereby improving the overall feeding quality.

[0052] Specifically, the rotation axis directions of the first gear 2322, the second gear 2323 and the third gear 2328 are parallel to each other.

[0053] In actual use, when the rotational axes of first gear 2322, second gear 2323, and third gear 2328 are parallel to each other, transmission between them is smoother, reducing vibration and impact caused by non-parallel axes, thereby reducing noise and energy loss. Parallel axes help maintain the meshing precision between the gears, thereby improving transmission accuracy and reliability and reducing transmission errors.

[0054] Specifically, a sensor 5 for detecting the position of the material is provided on the carrier 231 , and the number of the sensors 5 is set to be multiple.

[0055] In actual use, the arrangement of multiple sensors 5 can detect the position of the material from different positions and angles, providing more comprehensive and accurate position information and reducing detection errors. The detected position information is fed back to the control system, facilitating timely adjustment of parameters such as feeding speed and direction, thereby ensuring the accuracy and stability of material transportation.

[0056] 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. An adjustable material conveying limit mechanism for detection, comprising a base (1), characterized in that: The invention also includes a feeding module (2) and a limiting module (3) arranged on the base (1); the feeding module (2) includes a first feeding component (21), a second feeding component (22) and an adjusting component (23); the adjusting component (23) includes a carrier (231) arranged on the base (1) for reciprocating motion, and a driver (232) for driving the carrier (231) to move; the first feeding component (21) is arranged on the carrier (231); the limiting module (3) includes two groups of limiting components (31) with the same structure; the two groups of limiting components (31) are respectively arranged on the first feeding component (21) and the second feeding component (22); the first feeding component (21) and the second feeding component (22) are respectively used to support two ends of the material away from each other; and the two groups of limiting components (31) are respectively used to limit the two ends of the material away from each other; A first feeding assembly (21), a second feeding assembly (22) and two sets of limiting assemblies (31) are arranged to form a detection area (4); an external detector detects the detection products in the detection area (4); a driver (232) drives the first feeding assembly (21) to approach and / or move away from the second feeding assembly (22) via a carrier (231) to transport materials of different sizes and change the range of the detection area (4).

2. The adjustable material conveying limit mechanism for detection according to claim 1, characterized in that: The base (1) is provided with a mounting seat (12), the driver (232) has an adjusting motor (2321) provided on the mounting seat (12), the output shaft of the adjusting motor (2321) is provided with a first gear (2322), a second gear (2323) is rotatably provided on the mounting seat (12), a synchronous belt (2324) is sleeved on the outer side of the first gear (2322) and the outer side of the second gear (2323), and the second gear (2323) is provided with a synchronous belt (2324). A screw rod (2325) is provided, a bearing block (233) is provided on the bearing frame (231), the screw rod (2325) passes through the bearing block (233) and is screwed to the bearing block (233), one end of the screw rod (2325) away from the bearing block (233) is rotatably connected to the second feeding mechanism, a guide rail (2327) is provided on the base (1), a slider (2326) is provided on the bearing block (233), and the slider (2326) is connected to the guide rail (2327).

3. The adjustable material conveying limit mechanism for detection according to claim 1, characterized in that: The limiting assembly (31) comprises a limiting plate (311) arranged on the carrier (231), one end of the limiting plate (311) away from the carrier (231) protrudes downward to form a stop plate (312), and the stop plate (312) is used to stop the end of the free end of the material that is in contact with the material; a first limiting cylinder (313) is provided on the carrier (231), and a first limiting member (314) is provided at the output end of the first limiting cylinder (313), and the first limiting member (314) is used to stop the free end of the material that is in contact with the feeding direction; a second limiting cylinder (315) is provided on the carrier (231), and an adjusting plate (316) is provided at the output end of the second limiting cylinder (315), and a second limiting member (317) is provided on the adjusting plate (316) for stopping the free end of the material that is in contact with the upward side.

4. The adjustable material conveying limit mechanism for detection according to claim 1, characterized in that: The first feeding assembly (21) comprises a first motor (211) arranged on a carrier (231); a rotating shaft (212) penetrating the carrier (231) is provided on the output shaft of the first motor (211); a needle roller (213) for supporting transported materials is provided on one end of the rotating shaft (212) penetrating the carrier (231); a sprocket (214) is provided on one end of the rotating shaft (212) away from the needle roller (213); the number of the rotating shafts (212), the number of the needle rollers (213) and the number of the sprockets (214) are set to be multiple, and a chain (215) is provided between the sprockets (214) on two adjacent rotating shafts (212).

5. The adjustable material conveying limit mechanism for detection according to claim 2, characterized in that: The base (1) has two bottom plates (11) arranged on an external bearing plane, the number of the bearing blocks (233) is set to two, and the two bearing blocks (233) are respectively arranged on the two bottom plates (11) for supporting the two ends of the bearing frame (231) in the length direction; the number of the second gears (2323) is set to two, and the two second gears (2323) are respectively rotatably arranged on the two bearing blocks (233), and the connection direction of the two second gears (2323) is the same as that of the gears arranged on the same bearing plane. The connecting lines of the first gear (2322) and the second gear (2323) on the block (233) are perpendicular to each other; a third gear (2328) is rotatably provided on the bearing block (233); a synchronous belt (2324) is sleeved on the outside of the first gear (2322), the second gear (2323) and the third gear (2328); the third gear (2328) and the first gear (2322) are provided on the same bearing block (233) for adjusting the tension of the synchronous belt (2324).

6. The adjustable material conveying limit mechanism for detection according to claim 1, characterized in that: The number of the limiting plates (311), the number of the first limiting members (314), and the number of the second limiting members (317) are set to be multiple, the first limiting member (314) is set between two adjacent limiting plates (311), and the second limiting member (317) is set between two adjacent first limiting members (314); and a limiting groove for accommodating the first limiting member (314) is provided on the carrier (231).

7. The adjustable material conveying limit mechanism for detection according to claim 1, characterized in that: A coupling (216) is provided between the output shaft of the first motor (211) and the rotating shaft (212); the rotating axis directions of the plurality of needle rollers (213) are parallel to each other; and the plurality of rotating shafts (212) are arranged in a longitudinal direction of the carrier (231).

8. The adjustable material conveying limit mechanism for detection according to claim 1, characterized in that: The first feeding assembly (21) and the second feeding assembly (22) have the same structure.

9. The adjustable material conveying limit mechanism for detection according to claim 5, characterized in that: The rotation axis directions of the first gear (2322), the second gear (2323) and the third gear (2328) are parallel to each other.

10. The adjustable material conveying limit mechanism for detection according to claim 1, characterized in that: The carrier (231) is provided with a sensor (5) for detecting the position of the material, and the number of the sensors (5) is set to be multiple.

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