A device for removing irregularly shaped balls from recycled miniature steel ball blanks

By using a spiral conveyor plate and a raised guard plate for screening and unloading, the problem of low screening efficiency of existing screening machines for irregularly shaped balls with a weight much smaller than the predetermined specifications has been solved. This has enabled rapid screening and stable conveying, and improved the overall efficiency of micro steel ball processing.

CN224443784UActive Publication Date: 2026-07-03HEFEI LIHE MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEFEI LIHE MASCH CO LTD
Filing Date
2025-08-14
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing screening machines have low screening efficiency and waste time when screening irregularly shaped balls with a weight much smaller than the predetermined size and a volume loss of more than 50%.

Method used

The screening mechanism, which uses a spiral conveyor plate and raised guard plate, combined with the unloading mechanism, utilizes the spiral upward structure of the spiral conveyor plate and centrifugal force to screen irregularly shaped balls, and works with the unloading mechanism to achieve rapid screening and stable conveying.

Benefits of technology

It enables rapid screening of irregularly shaped balls with a weight much smaller than the predetermined size, saving screening time of subsequent screening machines and improving work efficiency and equipment stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a device for removing irregularly shaped balls in the reprocessing of miniature steel ball blanks, belonging to the field of miniature steel ball processing technology. The device includes a fixed support, an outer shell, and a collection chamber. The collection chamber is installed at the top of the fixed support. There are three sets of fixed supports, and the outer shell is installed between the three sets of fixed supports. A screening mechanism is installed inside the outer shell. The screening mechanism screens irregularly shaped balls in the miniature steel balls whose weight is much lower than the predetermined value and whose volume is missing over a large area. The screening mechanism includes a spiral conveyor plate, a raised guard plate, a main rod, and a baffle plate. In this utility model, through the setting of the screening mechanism, under the structure of the spiral conveyor plate and the action of centrifugal force, irregularly shaped balls in the miniature steel balls whose weight is much smaller than the predetermined size and whose volume is missing by more than 50% can be quickly screened. There is no need for subsequent screening machines to screen them one by one, saving the screening time of subsequent equipment. In addition, with the unloading mechanism, the miniature steel balls can be stably allowed to enter the collection chamber.
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Description

Technical Field

[0001] This utility model belongs to the field of micro steel ball processing technology, specifically relating to a device for removing irregularly shaped balls in micro steel ball blank reprocessing. Background Technology

[0002] Miniature steel balls are a common component in various parts, such as steel balls in bearings. The processing of miniature steel balls involves multiple steps, including grinding and screening. Specialized screening machines are used to remove defective or irregularly shaped balls during the screening process.

[0003] Existing screening machines separate irregularly shaped balls when screening micro steel balls. The screening process of existing screening machines is very precise and can remove all irregularly shaped balls that exceed the predetermined size. However, when screening irregularly shaped balls that are much smaller than the predetermined size and have more than 50% volume loss, the screening steps of the screening machine are the same as for conventional micro steel balls. This results in a significant waste of the screening machine's working time for irregularly shaped balls that should be screened quickly. Therefore, a removal device is proposed for rapidly screening irregularly shaped balls that are much smaller than the predetermined size and have more than 50% volume loss. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] To address the problems mentioned in the background section, the present invention adopts the following technical solution.

[0006] A device for removing irregularly shaped balls from recycled miniature steel ball blanks includes a fixed support, an outer shell, and a collection chamber. The collection chamber is installed at the top of the fixed support. There are three sets of fixed supports, and the outer shell is installed between the three sets of fixed supports. A screening mechanism is installed inside the outer shell. The screening mechanism screens irregularly shaped balls in the miniature steel balls whose weight is far below a predetermined value and whose volume has large area defects. The screening mechanism includes a spiral conveyor plate, a raised guard plate, a main rod, and a baffle plate. The spiral conveyor plate is installed inside the outer shell, and the main rod is installed on the spiral conveyor plate. A raised guard plate is installed on the side of the spiral conveyor plate opposite to the main rod. A baffle plate is installed at the output port of the spiral conveyor plate.

[0007] As a preferred technical solution of this utility model, the spiral conveyor plate is a spiral rising mechanism, and a blocking block is installed on one side of the top of the spiral conveyor plate.

[0008] As a preferred technical solution of this utility model, a screening groove is provided on the side wall of the spiral conveyor plate and located on the side of the baffle plate, and a discharge rack is installed on the side of the spiral conveyor plate to transport the irregular balls discharged from the screening groove.

[0009] As a preferred embodiment of this utility model, the height of the raised guard plate exceeds the height of the side edge of the spiral conveyor plate, and the height of the raised guard plate is higher than the diameter of the micro steel ball.

[0010] As a preferred technical solution of this utility model, it also includes an unloading mechanism, which includes an installation frame, a rotating bracket and a discharge plate. The installation frame is installed at the top of the centralized silo. There are two sets of installation frames. The rotating bracket is rotatably installed at the end of the installation frame, and the discharge plate is installed between the rotating brackets.

[0011] As a preferred technical solution of this utility model, the unloading mechanism further includes a pushing component. The pushing component is installed below the rotating bracket, and the other end of the pushing component is connected to the side wall of the centralized silo. The pushing component consists of a cylinder and a rotating seat. There are two sets of rotating seats. One set of rotating seats is installed below the rotating bracket, and the other set of rotating seats is installed on the side wall of the centralized silo. The cylinder is installed between the two sets of rotating seats.

[0012] As a preferred embodiment of this utility model, a tapered guide plate is installed on the side of the feeding plate, and the port of the guide plate is aligned with the center of the central hopper, and a feeding plate is installed below the central hopper.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention utilizes a screening mechanism to rapidly screen irregularly shaped micro steel balls that are significantly smaller than their predetermined size and have more than 50% volume loss, thanks to the structure of the spiral conveyor plate and the effect of centrifugal force. This eliminates the need for subsequent screening machines to process each ball individually, saving screening time for later equipment. Furthermore, the unloading mechanism ensures that the micro steel balls can reliably enter the centralized bin, facilitating the stable entry of subsequent steel balls into the screening mechanism. This guarantees the overall stability of the device during operation, improves its working quality, and achieves coarse selection of irregularly shaped balls. Attached Figure Description

[0015] Figure 1 This is a perspective view of the overall structure of this utility model.

[0016] Figure 2 This is a perspective view of the outer shell and the top structure of the central storage compartment of this utility model.

[0017] Figure 3 This is a perspective view of the screening mechanism structure of this utility model.

[0018] Figure 4 This is a schematic diagram of the structure of the baffle plate and the discharge rack in this utility model.

[0019] Figure 5 This is a perspective view of the unloading mechanism structure of this utility model.

[0020] The correspondence between the labels and component names in the attached figures is as follows:

[0021] 1. Fixed bracket; 2. Outer shell; 3. Centralized bin; 4. Screening mechanism; 41. Screw conveyor plate; 42. Raised guard plate; 43. Main rod; 44. Baffle plate; 45. Discharge rack; 5. Unloading mechanism; 51. Mounting frame; 52. Rotating bracket; 53. Discharge plate; 54. Pushing assembly. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. The present invention provides the following embodiments.

[0025] like Figure 1 and Figure 2 As shown, this is a schematic diagram of the structure of the device for removing irregularly shaped balls in the miniature steel ball blank reprocessing in this embodiment. The device includes a fixed support 1, an outer shell 2, and a collection chamber 3. The collection chamber 3 is installed at the top of the fixed support 1. There are three sets of fixed supports 1. The outer shell 2 is installed between the three sets of fixed supports 1. A screening mechanism 4 is installed inside the outer shell 2. The screening mechanism 4 screens irregularly shaped balls in the miniature steel balls whose weight is much lower than the predetermined value and whose volume has a large area missing.

[0026] During use, the material originally placed in the screening machine is poured into the central bin 3. The central bin 3 mechanism allows the material to enter the screening mechanism 4 stably. Through the use of the screening mechanism 4, irregularly shaped balls with a weight much smaller than the predetermined size and a volume loss of more than 50% are quickly screened, achieving coarse selection of micro steel balls, saving the screening time of the subsequent screening machine, and speeding up the overall work efficiency.

[0027] As attached Figure 3 and Figure 4 As shown, this is a schematic diagram of the screening mechanism 4 in this embodiment. The screening mechanism 4 includes a spiral conveyor plate 41, a raised guard plate 42, a main rod 43, and a baffle plate 44. The spiral conveyor plate 41 is provided inside the outer shell 2. The spiral conveyor plate 41 is a spiral rising mechanism. A baffle block is installed on one side of the top of the spiral conveyor plate 41. The main rod 43 is installed on the spiral conveyor plate 41. A raised guard plate 42 is installed on the side of the spiral conveyor plate 41 and on the side opposite to the main rod 43. The height of the raised guard plate 42 exceeds the height of the side edge of the spiral conveyor plate 41 and is higher than the diameter of the micro steel ball. A baffle plate 44 is installed at the output port of the spiral conveyor plate 41. A screening groove is opened on the side wall of the spiral conveyor plate 41 and on the side of the baffle plate 44. A discharge rack 45 is installed on the side of the spiral conveyor plate 41. The discharge rack 45 conveys the irregularly shaped balls discharged from the screening groove.

[0028] The micro-steel balls discharged from the central silo 3 fall into the spiral conveyor plate 41 under the action of gravity. Utilizing the spiral structure of the spiral conveyor plate 41 itself, the micro-steel balls will roll along the spiral conveyor plate 41. At this time, the irregularly shaped balls with a weight much smaller than the predetermined specifications and a volume loss of more than 50% are due to the difference in weight between them and the micro-steel balls that meet the specifications. The heavier micro-steel balls are rolled along the edge of the raised guard plate 42 under the action of their own weight and centrifugal force. The remaining irregularly shaped balls are affected by less centrifugal force than the micro-steel balls that meet the specifications due to their weight, and will slide along the inner wall of the spiral conveyor plate 41. Then, the irregularly shaped balls are guided by the use of the baffle plate 44 and discharged directly through the discharge rack 45, realizing the coarse selection and screening of irregularly shaped balls in the micro-steel balls.

[0029] As attached Figure 5As shown, this is a structural schematic diagram of the unloading mechanism 5 in this embodiment. It also includes an unloading mechanism 5, which includes a mounting frame 51, a rotating bracket 52, and a discharge plate 53. The mounting frame 51 is installed at the top of the centralized silo 3. There are two sets of mounting frames 51. The rotating bracket 52 is rotatably installed at the end of the mounting frame 51. The discharge plate 53 is installed between the rotating brackets 52. A pushing component 54 is installed below the rotating bracket 52. The other end of the pushing component 54 is connected to the side wall of the centralized silo 3. The pushing component 54 consists of a cylinder and a rotating seat. There are two sets of rotating seats. One set of rotating seats is installed below the rotating bracket 52, and the other set of rotating seats is installed on the side wall of the centralized silo 3. The cylinder is installed between the two sets of rotating seats.

[0030] All the steel balls to be screened are fed into the discharge plate 53. Then, by driving the cylinder in the component 54, the overall angle of the rotating bracket 52 is adjusted. The rotating bracket 52 tilts upward, allowing the steel balls to be discharged from the discharge plate 53 into the collection chamber 3. As the number of steel balls inside the discharge plate 53 decreases, the extension length of the cylinder changes, allowing the discharge plate 53 to tilt as much as possible, so that the steel balls can be discharged stably from the discharge plate 53.

[0031] As attached Figure 3 As shown, a conical guide plate is installed on the side of the discharge plate 53, and the port of the guide plate is aligned with the center of the collection bin 3. A feeding plate is installed below the collection bin 3. The steel balls discharged from the discharge plate 53 fall stably at the outlet of the end of the collection bin 3 through the guide plate. Then, through the use of the feeding plate, sufficient initial velocity is provided for the micro steel balls that meet the specifications, so that the micro steel balls roll along the inner wall of the raised guard plate 42 to achieve the screening of steel balls.

[0032] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A device for removing irregularly shaped balls from recycled miniature steel ball blanks, comprising a fixed support (1), an outer shell (2), and a collection chamber (3), wherein the collection chamber (3) is installed at the top of the fixed support (1), and three sets of fixed supports (1) are provided, with the outer shell (2) installed between the three sets of fixed supports (1), characterized in that: A screening mechanism (4) is installed inside the outer shell (2). The screening mechanism (4) screens the irregularly shaped balls in the micro steel balls whose weight is much lower than the predetermined value and whose volume has a large area missing. The screening mechanism (4) includes a spiral conveyor plate (41), a raised guard plate (42), a main rod (43) and a baffle plate (44). A spiral conveyor plate (41) is provided inside the outer shell (2). A main rod (43) is installed on the spiral conveyor plate (41). A raised guard plate (42) is installed on the side of the spiral conveyor plate (41) and on the side opposite to the main rod (43). A baffle plate (44) is installed at the output port of the spiral conveyor plate (41).

2. The device for removing irregularly shaped balls from miniature steel ball blanks in recycled products according to claim 1, characterized in that: The spiral conveyor plate (41) is a spiral rising mechanism, and a blocking block is installed on one side of the top of the spiral conveyor plate (41).

3. The device for removing irregularly shaped balls from miniature steel ball blanks in recycled products according to claim 2, characterized in that: A screening trough is provided on the side wall of the spiral conveyor plate (41) and located on the side of the baffle plate (44), and a discharge rack (45) is installed on the side of the spiral conveyor plate (41) to transport the irregular balls discharged from the screening trough.

4. The device for removing irregularly shaped balls from miniature steel ball blanks in recycled products according to claim 3, characterized in that: The height of the raised guard plate (42) exceeds the height of the side edge of the spiral conveyor plate (41), and the height of the raised guard plate (42) is higher than the diameter of the micro steel ball.

5. The device for removing irregularly shaped balls from miniature steel ball blanks in recycled products according to claim 1, characterized in that: It also includes a discharge mechanism (5), which includes a mounting frame (51), a rotating bracket (52) and a discharge plate (53). The top of the central silo (3) is equipped with a mounting frame (51), and there are two sets of mounting frames (51). The end of the mounting frame (51) is rotatably equipped with a rotating bracket (52), and the discharge plate (53) is installed between the rotating brackets (52).

6. The device for removing irregularly shaped balls from miniature steel ball blanks in recycled products according to claim 5, characterized in that: The unloading mechanism (5) also includes a pushing component (54). The pushing component (54) is installed below the rotating bracket (52). The other end of the pushing component (54) is connected to the side wall of the central silo (3). The pushing component (54) consists of a cylinder and a rotating seat. There are two sets of rotating seats. One set of rotating seats is installed below the rotating bracket (52), and the other set of rotating seats is installed on the side wall of the central silo (3). The cylinder is installed between the two sets of rotating seats.

7. The device for removing irregularly shaped balls from miniature steel ball blanks in recycled products according to claim 6, characterized in that: The feeding plate (53) has a tapered guide plate installed on its side, and the port of the guide plate is aligned with the center of the central bin (3), and a feeding plate is installed below the central bin (3).