Conveying and removing mechanism
By installing rotating rejection fan blades and a drive motor on the conveyor belt, materials are vertically rejected along the material conveying path, solving the problem of efficiency being affected by conveyor belt stops and achieving efficient and stable material rejection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-03-10
AI Technical Summary
Existing automatic rejection machines require the conveyor belt to stop when rejecting foreign objects, resulting in low overall smoothness of operation and affecting material conveying and processing efficiency.
It employs a rotating rejection fan blade and a drive motor to reject materials along the vertical direction of the material conveying path through the rejection unit. The design incorporates holes and grooves to improve rejection smoothness and stability.
It enables direct rejection of materials, improves rejection smoothness and work efficiency, and ensures the stability of material conveying and rejection.
Smart Images

Figure CN223983088U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical automation technology, and more specifically to a conveying and rejecting mechanism. Background Technology
[0002] Automatic rejection machines can automatically identify and remove foreign objects from products and are widely used in industry.
[0003] Chinese Patent Publication No. CN112607311B discloses a method for continuously removing foreign objects using an automatic rejection machine, as well as the automatic rejection machine itself. This automatic rejection machine executes preset rejection actions through a rejection mechanism and requires restarting the conveyor belt after rejection is completed. Specifically, after the conveyor belt stops moving, the rejection mechanism performs a rejection action on the foreign object, completing the rejection of one foreign object. After rejection is completed, the conveyor belt is restarted to continue rejecting the next foreign object.
[0004] Because the automatic rejection machine needs to stop the conveyor belt to perform the rejection action on foreign objects, the overall operation is not smooth, which affects the material conveying and processing efficiency and needs to be improved. Utility Model Content
[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a conveying rejection mechanism that can improve rejection smoothness and work efficiency.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] A conveying rejection mechanism includes at least one rejection unit for fixing on a material conveying path. The rejection unit is provided with a plurality of rotating rejection fan blades and a drive motor for driving the rotating rejection fan blades to rotate circumferentially. The rotating rejection fan blades are used to reject materials moving on the conveying path along the vertical direction of the material conveying path.
[0008] The present invention is further configured to include a support frame, wherein the support frame is provided with at least two columns, and a fixed straight plate is provided between the two columns, and the rejection unit is installed and fixed in the middle part of the fixed straight plate; a cavity for material movement is formed at the bottom of the fixed straight plate.
[0009] The present invention is further configured such that: two rejection units are provided and symmetrically distributed on the left and right, and are used to reject materials on opposite sides of the material conveying path in the vertical direction.
[0010] The present invention is further configured such that: a side window is formed between the two rejection units, and a side panel located on the upper side of the cavity is provided between the corresponding two columns.
[0011] The present invention is further configured such that when the bottom of the rotating removal fan blade is at its lowest point, the upper end is tilted forward.
[0012] The present invention is further configured such that the outer end of the rotating removal fan blade plate is provided with a plurality of arrayed holes.
[0013] The present invention is further configured such that: the outer end of the rotating removal fan blade is provided with a groove located on the side facing the rotation direction.
[0014] The present invention is further configured such that: the rejection unit is provided with a proximity switch, the proximity switch is used to locate the position of the rotating rejection fan blade after one rejection action, and when it deviates from the set position, the drive motor drives the rotating rejection fan blade to reset.
[0015] In summary, this utility model discloses a conveying and rejecting mechanism, which has the following beneficial effects: by driving a motor to rotate the rejecting fan blades, it directly rejects materials moving along the conveying path, thereby effectively improving the smoothness and efficiency of rejection. Simultaneously, the holes reduce airflow formation that could affect the stability of material conveying and rejection, while the grooves effectively limit the material during rejection, further enhancing the stability of material rejection. Attached Figure Description
[0016] Figure 1 This is a structural schematic diagram of this embodiment;
[0017] Figure 2 This is a partial structural diagram of this embodiment.
[0018] Explanation of reference numerals in the attached drawings: 1. Support frame; 11. Column; 12. Side window; 13. Fixed straight plate; 14. Side panel; 2. Removal unit; 21. Drive motor; 22. Rotating removal fan blade; 221. Hole; 222. Groove; 23. Proximity switch. Detailed Implementation
[0019] To make the technical solution and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0020] like Figure 1 As shown, a conveying rejection mechanism includes at least one rejection unit 2 for fixing on the material conveying path.
[0021] In this embodiment of the application, in order to improve the rejection efficiency and effect, two rejection units 2 are adopted and the two rejection units 2 are symmetrically distributed from left to right, so that the material is rejected along different directions in the conveying path, thereby improving the rejection efficiency.
[0022] It should be noted that the rejection unit 2 is equipped with multiple rotating rejection blades 22 and a drive motor 21 that drives the rotating rejection blades 22 to rotate circumferentially. The drive motor 21 is a stepper motor or a drive-controlled motor, used to control the multiple rotating rejection blades 22 to rotate at a set arc, so that the multiple rotating rejection blades 22 directly reject the material moving on the conveying path during the rotation. Specifically, during the material rejection process, the rotating rejection blades 22 reject the material moving on the conveying path along the direction perpendicular to the material conveying path. Therefore, it effectively avoids the impact of material movement and rejection on the positional displacement of other materials.
[0023] It should be mentioned that, in order to effectively fix the rejection unit 2 and avoid its impact on material conveying, the conveying rejection mechanism also includes a support frame 1. The support frame 1 is provided with columns 11, and each rejection unit 2 is connected and fixed by two columns 11. A fixed straight plate 13 is provided between the corresponding two columns 11, and the rejection unit 2 is installed and fixed in the middle of the fixed straight plate 13. A cavity for material movement is formed at the bottom of the fixed straight plate 13. When the material moves along the conveying path, it moves through the cavity to the location of the rejection unit 2, and is then effectively rejected by the rejection unit 2.
[0024] like Figure 1 As shown, the two rejection units 2 are symmetrically distributed left and right, and are used to reject materials on opposite sides of the material conveying path in the vertical direction. It should be noted that a side window 12 is formed between the two rejection units 2, and a side panel 14 is provided on the upper side of the cavity between the corresponding two columns 11. The side panel 14 has a shielding and protective effect, and the side window 12 is used for convenient observation and effective control of the rejection units 2. Meanwhile, as... Figure 1 , Figure 2As shown, to improve the material rejection effect of the rejection unit 2, multiple arrayed holes 221 and grooves 222 located on the side facing the rotation direction are provided on the outer end of the rotating rejection fan blade 22. The holes 221 reduce the impact of airflow formation on the stability of material conveying and rejection, while the grooves 222 effectively limit the material during rejection, thereby further improving the stability of material rejection. Simultaneously, when the bottom of the rotating rejection fan blade 22 is at its lowest point, its upper end is tilted forward. Therefore, when the bottom of the rotating rejection fan blade 22 passes its lowest point during rotation, it will reject the material on the conveying path from a downward-pressed to an upward-curved posture, avoiding material picking that could affect the stability of material movement.
[0025] like Figure 2 As shown, the rejection unit 2 is equipped with a proximity switch 23. The proximity switch 23 is used to position the rotating rejection blade 22 after one rejection action, and when it deviates from the set position, the drive motor 21 drives the rotating rejection blade 22 to reset. Therefore, after the rotating rejection blade 22 completes the rejection action, with the cooperation of the proximity switch 23, it ensures that the rotating rejection blade 22 is located in the set position and awaits continued drive operation, thereby improving the rejection effect and stability of materials.
[0026] In summary, this utility model discloses a conveying and rejecting mechanism. This mechanism drives the rotating rejecting fan blade 22 via a drive motor 21, directly rejecting materials moving along the conveying path and removing them from the path, thereby effectively improving the smoothness and efficiency of rejection. Simultaneously, the holes 221 reduce airflow formation that could affect the stability of material conveying and rejection, while the grooves 222 effectively limit the material during rejection, further enhancing the stability of material rejection.
[0027] The terms “first,” “second,” “third,” “fourth,” etc., used in this application (if applicable) are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, or apparatus that includes a series of steps or units is not necessarily limited to those explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, or apparatus.
[0028] It should be noted that the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.
[0029] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.
Claims
1. A transfer rejection mechanism characterized by: The application relates to a support stand (1) and at least one removing unit (2) for fixing on a material conveying path, wherein the removing unit (2) is provided with a plurality of rotating removing fan blades (22) and a driving motor (21) for driving the rotating removing fan blades (22) to make circumferential rotating movement; the rotating removing fan blades (22) are used for removing materials moving on the conveying path in the vertical direction of the conveying path; the support stand (1) is provided with at least two columns (11), and a fixed straight plate (13) is arranged between the two columns (11); the removing unit (2) is fixedly arranged at the middle part of the fixed straight plate (13); and the bottom of the fixed straight plate (13) is formed with a cavity for material movement.
2. A transfer rejection mechanism according to claim 1, wherein: The removing unit (2) is provided with two units and is symmetrically distributed left and right, and is respectively used for removing materials on the opposite sides of the vertical direction of the material conveying path.
3. A transfer rejection mechanism according to claim 2, wherein: Side windows (12) are formed between the two removing units (2), and side plates (14) are arranged between the corresponding two columns (11) and located on the upper side of the cavity.
4. The transfer rejection mechanism of claim 1, wherein: When the bottom of the rotating removing fan blade (22) is at the lowest point, the upper end is inclined forward.
5. The transfer rejection mechanism of claim 1, wherein: The outer end of the rotating removing fan blade (22) is provided with a plurality of arrayed holes (221).
6. The transfer rejection mechanism of claim 1, wherein: The outer end of the rotating removing fan blade (22) is provided with a groove (222) located on the side of the rotating direction.
7. The transfer rejection mechanism of claim 1, wherein: The removing unit (2) is provided with a proximity switch (23) for positioning the position of the rotating removing fan blade (22) after a removing action, and when the position deviates from the set position, the driving motor (21) drives the rotating removing fan blade (22) to reset.
Citation Information
Patent Citations
A method for continuously removing foreign objects using an automatic rejection machine and the automatic rejection machine itself.
CN112607311B