An automatic screening device for roll end caps

Abstract

This utility model relates to the field of conveying equipment technology, and provides an automatic screening device for roll end caps. The device includes a housing with an infeed platform, a first step, and an outlet platform arranged sequentially from low to high. A first pusher plate is vertically positioned between the infeed platform and the first step; a second pusher plate is vertically positioned between the first step and the outlet platform; the top surfaces of the first step, the first pusher plate, and the second pusher plate are all planes inclined towards the outlet platform; the depth of the first step is less than the radius of the extension plate. This technical solution, by designing the first step depth to be less than the radius of the extension plate, ensures a uniform upward-facing posture for the end caps during conveying. It solves the technical problem in the prior art where the extension plates of the roll end caps need to be manually aligned upwards during roll end cap conveying.

Description

Technical Field

[0001] The embodiments of this utility model relate to the field of conveying equipment technology, specifically to an automatic screening device for roll end caps. Background Technology

[0002] In the automated production and conveying process of coil end caps, to meet the precise operational requirements of subsequent processes (such as assembly, inspection, or packaging), it is essential to ensure that the extension plate portion of the coil end cap always faces upwards, facilitating gripping, positioning, or identification and processing by robotic arms or other automated equipment. Currently, the industry's commonly used conveying equipment relies heavily on material pushers or traditional conveyor belts for conveying coil end caps. However, such equipment generally lacks automatic adjustment functionality for the orientation of the coil end caps. When the extension plate of the coil end cap faces downwards or exhibits inconsistent posture during conveying, existing technologies often require manual flipping and adjustment, which not only consumes significant labor costs but also easily leads to low conveying efficiency and unstable production rhythm due to the subjectivity of manual operation, severely restricting the automation and intelligence level of the production line. Utility Model Content

[0003] To overcome the above-mentioned defects, the present invention provides an automatic screening device for roll end caps, which solves the technical problem in the prior art that the extension plate of the roll end cap needs to be manually facing upwards when conveying the roll end caps.

[0004] According to one aspect, at least one embodiment of the present invention provides an automatic screening device for roll end caps, wherein the roll end cap has an end cap body and an extension plate located at one end of the end cap body and having a diameter larger than that of the end cap body, comprising:

[0005] The housing has an infeed platform, a first step, and an outlet platform arranged sequentially from low to high.

[0006] A first push plate is vertically positioned between the feeding platform and the first step;

[0007] The second push plate is vertically positioned between the first step and the discharge platform;

[0008] The top surface of the first step, the top surface of the first push plate, and the top surface of the second push plate are all planes inclined towards the discharge platform;

[0009] The depth of the first step is less than the radius of the extension plate;

[0010] The first pusher plate and the second pusher plate are arranged such that the first pusher plate is used to push the roll end cap from the feeding platform to the first step, and the second pusher plate is used to push the roll end cap from the first step to the discharge platform.

[0011] For example, in an automatic screening device for roll end caps provided in at least one embodiment of this utility model, a guide structure is provided between the first step and the first push plate and the second push plate.

[0012] For example, in an automatic screening device for roll end caps provided in at least one embodiment of the present invention, a second step is provided between the first step and the discharge platform, and a third push plate is provided between the second step and the discharge platform, the third push plate being used to push the roll end cap from the second step to the discharge platform.

[0013] For example, in an automatic screening device for roll end caps provided in at least one embodiment of the present invention, the discharge platform is provided with a conveyor belt for conveying the roll end caps located on the discharge platform.

[0014] For example, in at least one embodiment of the present invention, an automatic screening device for roll end caps is provided, which further includes:

[0015] An abutment block is disposed on the housing and located on the downstream section of the conveyor belt away from the feeding platform. The height of the abutment block is lower than that of the end cap body. The abutment block is used to abut against the extension plate to cause the roll end cap to detach from the conveyor belt.

[0016] A return plate is disposed on the housing. One end of the return plate is located on the downstream section of the conveyor belt near the feeding platform, and the other end faces the feeding platform. It is used to guide the end caps of the roll material that have fallen off the conveyor belt to the feeding platform.

[0017] For example, in an automatic screening device for roll end caps provided in at least one embodiment of the present invention, the feeding platform is inclined toward the discharging platform.

[0018] For example, in an automatic screening device for roll end caps provided in at least one embodiment of the present invention, the return plate is divided into a receiving section and a conveying section from one end near the conveyor belt to the other end, and the width of the receiving section gradually decreases towards the conveying section.

[0019] For example, in at least one embodiment of the present invention, an automatic screening device for roll end caps is provided, wherein a turning section is provided between the receiving section and the conveying section, and the automatic screening and conveying device for roll end caps further includes:

[0020] A push rod is provided, which passes through and slides on the flipping section. The sliding axis of the push rod forms an angle with the plane of the flipping section. The push rod is arranged to slide and push the extension plate from bottom to top to flip the roll end cap.

[0021] For example, in an automatic screening device for roll end caps provided in at least one embodiment of this utility model, the push rod has an abutment plate at one end located below the flipping section, and an elastic element is provided between the abutment plate and the flipping section. The elastic element is used to elastically pull the other end of the push rod out of the flipping section to elastically push the extension plate. The automatic screening and conveying device for roll end caps further includes:

[0022] A toggle plate is rotatably disposed below the flipping section. The toggle plate is arranged so that it can contact the abutment plate after rotation, so that the push rod retracts into the flipping section.

[0023] For example, in an automatic screening device for roll end caps provided in at least one embodiment of the present invention, the flipping section is provided with auxiliary pulleys, which are rotatably arranged on both sides above the flipping section. The auxiliary pulleys are arranged so that the roll end caps can contact the extension plate after flipping.

[0024] The beneficial effects of the embodiments of this utility model are as follows:

[0025] In this invention, the feeding platform, the first step, and the discharging platform within the housing are arranged from low to high, forming a hierarchical conveying structure. Combined with the lifting and pushing action of the first and second push plates, this achieves step-by-step conveying of the roll end caps, preventing accumulation or disorder during transport. The inclined plane design of each top surface allows the roll end caps to slide automatically along the inclined direction when pushed, reducing resistance during the pushing process and improving smoothness and efficiency. The design of the first step depth being less than the radius of the extension plate ensures a uniform upward-facing posture of the end caps with the extension plate during transport. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of an automatic screening device for roll end caps in one embodiment of the present invention;

[0028] Figure 2 for Figure 1 A cross-sectional structural schematic diagram of an automatic screening device for roll end caps in one embodiment;

[0029] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0030] In the diagram: 1. Roll end cap, 101. End cap body, 102. Extension plate, 2. Shell, 3. Feeding platform, 4. First step, 5. Discharge platform, 6. First push plate, 7. Second push plate, 8. Second step, 9. Third push plate, 10. Conveyor belt, 11. Abutment block, 12. Return plate, 121. Receiving section, 122. Conveying section, 123. Tilting section, 13. Push rod, 131. Abutment plate, 14. Elastic element, 15. Actuating plate, 16. Auxiliary pulley. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0032] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0033] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] like Figures 1-2 As shown, this invention illustrates an automatic screening device for roll end caps according to one embodiment of the present invention. The housing 2 has a cuboid structure, with an infeed platform 3, a first step 4, and an outlet platform 5 arranged sequentially from low to high inside. These three components are arranged horizontally. The top surfaces of the first step 4, the first push plate 6, and the second push plate 7 are all planes inclined towards the outlet platform 5. This inclined plane allows the roll end cap 1 to move more smoothly towards the outlet platform 5 during the pushing process, utilizing its own weight and the pushing force of the push plates.

[0038] The first push plate 6 is positioned in the gap between the feeding platform 3 and the first step 4, and can move up and down within this gap. When the first push plate 6 rises, it can push the roll end cap 1 on the feeding platform 3 to the first step 4. When the first push plate 6 descends, it can return to its initial position and wait for the next push. The second push plate 7 is positioned in the gap between the first step 4 and the discharge platform 5, and can also move up and down within this gap, used to push the roll end cap 1 on the first step 4 to the discharge platform 5.

[0039] The step depth of the first step 4 refers to the horizontal distance from the edge of the first step 4 near the feeding platform 3 to the edge near the discharging platform 5. This step depth is less than the radius of the extension plate 102, which allows a portion of the extension plate 102 to extend beyond the edge of the first step 4 near the feeding platform 3 when the roll end cap 1 is pushed to the first step 4, thereby forming a certain tilt angle between the end cap body 101 and the top surface of the first step 4, ensuring that the extension plate 102 is in the upper position.

[0040] The specific workflow is as follows: The roll end cap 1 is first placed on the feeding platform 3. The first pusher plate 6 rises, pushing the roll end cap 1 from the feeding platform 3 to the first step 4. Due to the inclination of the top surface of the first pusher plate 6, the roll end cap 1 slides towards the discharge platform 5 during the pushing process. After reaching the first step 4, because the depth of the first step 4 is less than the radius of the extension plate 102, the extension plate 102 extends beyond the edge of the step, the end cap body 101 tilts, and the extension plate 102 faces upward. Then the second pusher plate 7 rises, pushing the roll end cap 1 on the first step 4 to the discharge platform 5. Similarly, with the help of the inclination of the top surface of the second pusher plate 7, the roll end cap 1 slides smoothly to the discharge platform 5, completing the conveying process.

[0041] The advantage lies in the fact that the feeding platform 3, the first step 4, and the discharging platform 5 in the housing 2 are arranged from low to high, forming a hierarchical conveying structure. Combined with the lifting and pushing action of the first pusher plate 6 and the second pusher plate 7, this achieves the step-by-step conveying of the roll end cap 1, avoiding accumulation or disorder during conveying. The inclined plane design of each top surface allows the roll end cap 1 to slide automatically along the inclined direction when pushed, reducing resistance during the pushing process and improving the smoothness and efficiency of the pushing. The design of the first step 4 having a depth smaller than the radius of the extension plate 102 ensures a uniform upward orientation of the extension plate 102 during the conveying process.

[0042] like Figures 1-2 As shown, the two side walls of the first step 4 and the corresponding sides of the first push plate 6 and the second push plate 7 are respectively provided with guide structures. These guide structures include vertical guide rails fixed to the inner wall of the housing 2 and sliders disposed on the sides of the push plates, with the sliders sliding in contact with the guide rails. The guide rails extend vertically, and the sliders can slide up and down on the guide rails, ensuring that the first push plate 6 and the second push plate 7 remain stable during lifting and lowering, avoiding lateral deviation. The contact surfaces of the guide rails and sliders in the guide structure are planar, and the two cooperate to form a linear sliding pair, restricting the movement trajectory of the push plates to only the vertical direction. This prevents the end caps from rolling or jamming due to uneven force caused by the tilting of the push plates. This structure improves the stability of the pushing process, ensuring that the end caps can be accurately transferred from the feeding platform 3 to the first step 4, and from the first step 4 to subsequent platforms, thereby improving the overall reliability of the equipment operation.

[0043] like Figures 1-2As shown, a second step 8 is set between the first step 4 and the discharge platform 5. The height of the second step 8 is between that of the first step 4 and the discharge platform 5, forming a three-tiered staircase layout. A third push plate 9 is installed in the gap between the second step 8 and the discharge platform 5. The structure of the third push plate 9 is the same as that of the first push plate 6 and the second push plate 7, with its top surface being a plane inclined towards the discharge platform 5. The bottom surface of the third push plate 9 is slidably connected to the bottom surface of the second step 8, allowing it to move up and down within the gap. When the second push plate 7 pushes the end cap from the first step 4 to the second step 8, the third push plate 9 rises, pushing the end cap from the second step 8 to the discharge platform 5. Its inclined top surface aligns with the inclined plane of the discharge platform 5, ensuring that the end cap slides smoothly along the inclined surface.

[0044] The added second step 8 and the third pusher plate 9 form a multi-stage pushing structure, extending the attitude adjustment path of the roll end cap 1 during the conveying process. Through graded pushing, the attitude of the end cap can be screened a second time at each step: if the end cap is not rejected in an unqualified attitude at the first step 4 (such as a slight tilt of the extension plate 102), it will be subjected to gravity screening again at the second step 8 due to the shift in the center of gravity, further improving the screening accuracy. The multi-stage stepped layout, combined with the multi-stage pusher plates, makes the conveying process smoother, reduces the impact or sudden attitude change of the end cap caused by excessive height difference in a single push, and ensures that the end cap enters the discharge platform 5 in a stable attitude.

[0045] like Figures 1-2 As shown, a conveyor belt 10 is provided on the top surface of the discharge platform 5. The conveyor belt 10 is arranged along the length of the discharge platform 5, and its conveying direction is consistent with the conveying direction of the end cap. The upper surface of the conveyor belt 10 is flush with the top surface of the discharge platform 5 and higher than the top surface of the second step 8 (if present), ensuring that when the third push plate 9 (or the second push plate 7) pushes the end cap to the discharge platform 5, the end cap can smoothly transition onto the conveyor belt 10. The conveyor belt 10 is driven by a drive motor through a sprocket or gear transmission mechanism to form a continuous conveying motion, continuously conveying the end caps on the discharge platform 5 to the downstream process.

[0046] The conveyor belt 10 enables the conversion of the roll end cap 1 from intermittent pushing to continuous conveying, forming an efficient connection with the upstream stepped pushing structure. The continuous conveying method avoids the accumulation of end caps on the discharge platform 5, improving the conveying efficiency of the equipment, while providing a stable material input rhythm for downstream automated equipment (such as robotic arm grippers), adapting to the needs of high-speed production lines. The smooth operation of the conveyor belt 10 ensures that the end caps do not change their posture during conveying, maintaining a uniform upward orientation of the extension plate 102.

[0047] like Figures 1-2As shown, the housing 2 is fixedly provided with an abutment block 11 on the side of the downstream section of the conveyor belt 10 away from the feeding platform 3. The height of the abutment block 11 is lower than the height of the end cover body 101. That is, when the end cover with the extension plate 102 facing upward passes through the conveyor belt 10, the abutment block 11 only contacts the lower part of the end cover body 101 and does not affect its normal conveying. However, when the end cover with the extension plate 102 facing downward passes through, the extension plate 102 is located below the end cover, and the height of the abutment block 11 corresponds exactly to the position of the extension plate 102. When the end cover moves, the extension plate 102 abuts against the abutment block 11. Since the abutment block 11 is fixed, the end cover is subjected to a reverse force and falls off from the edge of the conveyor belt 10. The housing 2 is provided with a return plate 12 on the side of the downstream section of the conveyor belt 10 near the feeding platform 3. One end of the return plate 12 is located below the edge of the conveyor belt 10, and the other end faces the feeding platform 3, forming an inclined guide surface to guide the detached end caps to slide down the feeding platform 3 along the return plate 12, thereby realizing the cyclic screening of unqualified end caps.

[0048] The engagement of the abutment block 11 and the return plate 12 constitutes a secondary screening mechanism, performing a final attitude check on the end caps at the end of the conveyor belt 10: end caps with the extension plate 102 facing downwards fall off due to the obstruction of the abutment block 11 and return to the feeding platform 3 via the return plate 12 to participate in screening again; end caps with the extension plate 102 facing upwards smoothly pass through the conveyor belt 10 and enter the subsequent process. This structure compensates for the potential omission problem in gravity screening, forming a dual screening mechanism to ensure that all end caps at the discharge end are in the qualified attitude with the extension plate 102 facing upwards. The inclined guiding design of the return plate 12 realizes the automatic return of unqualified end caps without manual intervention, forming a closed-loop process for screening and conveying, improving material utilization and equipment automation.

[0049] like Figures 1-2 As shown, the top surface of the feeding platform 3 is a plane inclined towards the discharging platform 5. This inclined plane forms a certain angle with the horizontal plane. The angle is such that the end cap 1 of the roll material can automatically slide along the feeding platform 3 to the position of the first push plate 6 under the action of gravity. The lower end of the feeding platform 3 is connected to the external feeding equipment (such as a vibratory feeder or conveyor belt), and the upper end is close to the first step 4. When the end cap is transported to the feeding platform 3 by the feeding equipment, it automatically slides towards the first push plate 6 with the help of the gravity component of the inclined plane, reducing the pushing distance and driving force requirement of the first push plate 6.

[0050] The inclined design of the feeding platform 3 utilizes gravity-assisted end cap positioning, allowing the end caps to naturally converge towards the first push plate 6 while awaiting delivery, preventing missed or incorrect pushes due to dispersed positions. The inclined plane mates with the inclined top surface of the first push plate 6, forming a continuous inclined conveying path. During delivery, the end caps are simultaneously subjected to the pushing force of the push plate and the component of gravity, resulting in a more stable movement trajectory and reduced jamming. This structure simplifies the positioning requirements of the feeding process and improves the equipment's compatibility with different feeding methods.

[0051] like Figures 1-3 As shown, the return plate 12 has a receiving section 121 at one end near the conveyor belt 10 and a conveying section 122 at the other end. The width of the receiving section 121 is greater than the width of the conveying section 122, forming a flared structure with a gradually narrowing width. The two sides of the receiving section 121 extend outward to ensure that the end caps detached from the conveyor belt 10 can fall accurately into the return plate 12. The width of the conveying section 122 is adapted to the diameter of the end cap body 101, so that the end caps are arranged in a single row during the return process, avoiding the stacking and blockage of multiple end caps. The connection between the receiving section 121 and the conveying section 122 is smoothly transitioned to reduce the jamming of the end caps at the width change point.

[0052] A tilting section 123 is provided between the receiving section 121 of the return plate 12 and the conveying section 122. The top surface of the tilting section 123 is horizontal, and a push rod 13 is installed through it. The axis of the push rod 13 forms an acute angle (e.g., 90°) with the plane of the tilting section 123. Its lower end is located below the tilting section 123, and its upper end can extend out of the top surface of the tilting section 123. The lower end of the push rod 13 is connected to an abutment plate 131. An elastic element 14 (e.g., a spring) is provided between the abutment plate 131 and the tilting section 123. In its natural state, the elastic element 14 pulls the push rod 13 upward, so that the upper end of the push rod 13 extends out of the top surface of the tilting section 123. When the end cap of the extension plate 102, facing downwards, slides along the return plate 12 to the flipping section 123, the upper end of the push rod 13 contacts the bottom surface of the extension plate 102. As the end cap continues to move, the push rod 13 is compressed downwards by the pressure of the end cap, compressing the elastic element 14. When the center of gravity of the end cap exceeds the point of action of the push rod 13, the elastic element 14 resets and pushes the push rod 13 upwards to push the extension plate 102, causing the end cap to flip around the center of gravity, and the extension plate 102 changes from facing downwards to facing upwards.

[0053] The cooperation between the flipping section 123 and the push rod 13 enables automatic posture correction of defective end caps: when an end cap with the extension plate 102 facing downwards passes through the flipping section 123 during the return flow, the push rod 13 uses its elastic pushing force and the end cap's center of gravity offset characteristic to force it to flip 180°, making the extension plate 102 face upwards. The flipped end cap returns to the feeding platform 3 in a qualified posture, improving the efficiency of material circulation and preventing defective end caps from repeatedly entering the screening process.

[0054] For example, such as Figure 3As shown, a deflector plate 15 is provided below the abutment plate 131 at the lower end of the push rod 13. The deflector plate 15 is rotatably connected to the housing 2 below the flipping section 123 via a rotating shaft. One end of the deflector plate 15 is opposite to the abutment plate 131, and the other end extends to the outside of the housing 2 (or is connected to the drive mechanism). When it is necessary to control the retraction of the push rod 13, the external drive mechanism (such as a cylinder or motor) drives the deflector plate 15 to rotate. The end of the deflector plate 15 contacts the abutment plate 131 and pushes downward, overcoming the tension of the elastic element 14 to make the push rod 13 completely retract into the flipping section 123. After the drive mechanism continues to rotate, the deflector plate 15 releases contact with the abutment plate 131, the elastic element 14 resets, and the push rod 13 ejects and extends to push the end cap 1 of the roll material, causing it to flip over.

[0055] For example, such as Figure 3 As shown, symmetrical auxiliary pulleys 16 are arranged on both sides of the top surface of the flipping section 123. The auxiliary pulleys 16 are rotatably connected to the flipping section 123 via a rotating shaft. The wheel surface is higher than the top surface of the flipping section 123, and the width of the wheel surface is smaller than the diameter of the end cap body 101. After the end cap completes flipping in the flipping section 123, the extension plate 102 contacts the auxiliary pulleys 16, reducing the friction between the end cap and the flipping section 123. The wheel surface of the auxiliary pulleys 16 is a smooth curved surface, ensuring that the end cap remains stable during sliding and does not shift.

[0056] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An automatic screening device for roll end caps, wherein the roll end cap (1) has an end cap body (101) and an extension plate (102) located at one end of the end cap body (101) and having a diameter larger than that of the end cap body (101), characterized in that, include: The housing (2) has a feeding platform (3), a first step (4) and a discharging platform (5) arranged in sequence from low to high. The first push plate (6) is elliptical and disposed between the feeding platform (3) and the first step (4); The second push plate (7) is elliptical and disposed between the first step (4) and the discharge platform (5); The top surface of the first step (4), the top surface of the first push plate (6), and the top surface of the second push plate (7) are all planes inclined toward the discharge platform (5); The step depth of the first step (4) is less than the radius of the extension plate (102); The first push plate (6) and the second push plate (7) are arranged such that the first push plate (6) is used to push the roll end cap (1) from the feed platform (3) to the first step (4), and the second push plate (7) is used to push the roll end cap (1) from the first step (4) to the discharge platform (5).

2. The automatic screening equipment for roll end caps according to claim 1, characterized in that, A guide structure is provided between the first step (4) and the first push plate (6) and the second push plate (7).

3. The automatic screening equipment for roll end caps according to claim 1, characterized in that, A second step (8) is provided between the first step (4) and the discharge platform (5), and a third push plate (9) is provided between the second step (8) and the discharge platform (5). The third push plate (9) is used to push the roll end cap (1) from the second step (8) to the discharge platform (5).

4. The automatic screening equipment for roll end caps according to claim 1, characterized in that, The discharge platform (5) is provided with a conveyor belt (10) for the conveyor belt (10) to be located on the roll end cap (1) of the discharge platform (5).

5. The automatic screening equipment for roll end caps according to claim 4, characterized in that, Also includes: Abutting block (11) is disposed on the housing (2) and located on the downstream section of the conveyor belt (10) away from the feeding platform (3). The height of the abutting block (11) is lower than that of the end cap body (101). The abutting block (11) is used to abut against the extension plate (102) so that the roll end cap (1) can be detached from the conveyor belt (10). Return plate (12), the return plate (12) is disposed on the housing (2), one end of the return plate (12) is located on the downstream section of the conveyor belt (10) near the feed platform (3), and the other end faces the feed platform (3), for guiding the roll end cap (1) that falls off the conveyor belt (10) to the feed platform (3).

6. The automatic screening equipment for roll end caps according to claim 1, characterized in that, The feeding platform (3) is tilted toward the discharging platform (5).

7. The automatic screening equipment for roll end caps according to claim 5, characterized in that, The return plate (12) is divided into a receiving section (121) and a conveying section (122) from one end near the conveyor belt (10) to the other end, and the width of the receiving section (121) gradually decreases towards the conveying section (122).

8. The automatic screening equipment for roll end caps according to claim 7, characterized in that, A turning section (123) is provided between the receiving section (121) and the conveying section (122), and the automatic screening and conveying equipment for the roll end caps further includes: A push rod (13) is inserted through and slidably disposed on the flip section (123). The sliding axis of the push rod (13) has an angle with the plane of the flip section (123). The push rod (13) is arranged to push the extension plate (102) from bottom to top after sliding, so as to flip the roll end cap (1).

9. An automatic screening device for roll end caps according to claim 8, characterized in that, The push rod (13) is provided with an abutment plate (131) at one end below the flipping section (123). An elastic element (14) is provided between the abutment plate (131) and the flipping section (123). The elastic element (14) is used to elastically pull the other end of the push rod (13) out of the flipping section (123) to elastically push the extension plate (102). The automatic screening and conveying equipment for the roll end cap also includes: A toggle plate (15) is rotatably disposed below the flip section (123). The toggle plate (15) is arranged so that it can contact the abutment plate (131) after rotation, so that the push rod (13) retracts into the flip section (123).

10. An automatic screening device for roll end caps according to claim 8, characterized in that, The flipping section (123) is provided with a pulley (16), which is rotatably disposed on both sides above the flipping section (123). The pulley (16) is arranged to contact the extension plate (102) after the roll end cap (1) is flipped.

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