Abnormal steel ball picking system

Abstract

The utility model discloses an abnormal steel ball picking system which comprises a ball storage platform, a ball turning device, a PLC (Programmable Logic Controller), a crank pushing cylinder, a good product pushing cylinder, an abnormal product pushing cylinder and a weighing platform, according to the sorting process, the steel balls fall into the ball turning device from the ball storage platform, the steel balls are turned into the weighing platform to be weighed through the ball turning device, then the PLC controls the corresponding pushing air cylinders to push the steel balls into the corresponding ball outlets according to the weighing result, and sorting of the steel balls is completed. According to the abnormal steel ball picking system, automatic picking of the abnormal steel balls is achieved, the abnormal steel balls and good steel balls can be effectively distinguished, the safety coefficient of steel ball production is improved, and meanwhile the labor cost of steel ball production is reduced. The steel ball sorting device is suitable for producing and processing steel balls and is used for sorting abnormal steel balls generated in the steel ball production process.

Description

Technical Field

[0001] The utility model belongs to the field of wear-resistant steel ball processing and relates to a steel ball picking system, in particular to a system for picking abnormal steel balls during the steel ball production and processing process. Background Art

[0002] At present, in the field of steel ball processing, the production and processing technology of wear-resistant steel balls is gradually upgrading from the low-capacity and high-pollution air hammer forging method to the new processing technology using hydraulic presses and rolling machines for steel ball processing. However, in the actual production process, due to the inconsistency of steel bar lengths and the influence of air pressure fluctuations, it is easy for the pusher to push the bar material for shearing, resulting in errors in the cutting length of the bar material, so that the weight of the resulting steel forging is different from the weight required for the required diameter of the processed steel ball;

[0003] At the same time, the spacing of the die plates of the rolling machine is set according to the diameter of the steel ball to be processed. Therefore, in the processing of steel balls, when the heavy steel forging enters the die plate of the rolling machine, the mold cavity cannot meet the excessive expectations for steel ball forming, resulting in a large number of sticky pieces on the surface of the steel ball;

[0004] When the light steel forging enters the die plate of the rounding machine, the weight of the steel rod cannot meet the weight requirement for forming the steel ball, which makes it easy for dents to form on the steel ball during subsequent use, increasing the replacement frequency and maintenance costs.

[0005] Therefore, when there is an error in the cutting length of the bar, it will seriously affect the appearance quality of the steel ball, produce a large number of defective products, and seriously affect the production cost.

[0006] In addition, currently, the selection of abnormal steel balls requires manual selection of steel balls with appearance defects, which consumes a lot of manpower and requires each steel ball to be weighed and checked, resulting in high labor intensity and low selection efficiency. At the same time, in the process of steel ball selection, because employees have to select a large number of steel balls, their fingers are easily squeezed and injured by other steel balls around them when picking steel balls. Therefore, an abnormal steel ball selection system is needed to solve the above problems. Utility Model Content

[0007] In order to solve the above deficiencies in the prior art, the utility model aims to provide an abnormal steel ball picking system, which can automatically pick and distinguish good steel balls from abnormal steel balls by identifying the weight difference between good steel balls and abnormal steel balls, thereby reducing labor input, improving picking efficiency and reducing production costs.

[0008] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0009] An abnormal steel ball picking system includes a ball storage platform, a ball turner, a PLC controller, a crank push cylinder, a good product push cylinder, an abnormal product push cylinder and a weighing platform. Among them, a ball turner is provided at the ball outlet of the ball storage platform; the ball turner is controlled to rotate by the crank of the ball turner, and the crank of the ball turner is fixedly connected to the push end of the crank push cylinder; a weighing platform is provided at the rotating end of the ball turner, a weighing sensor is provided inside the weighing platform, and a good product steel ball outlet and an abnormal steel ball outlet are also provided on the weighing platform; the good product steel ball outlet is provided with a good product push cylinder according to the symmetrical direction of the central axis of the weighing platform, and the abnormal steel ball outlet is provided with an abnormal product push cylinder according to the symmetrical direction of the central axis of the weighing platform; the PLC controller is electrically connected to the weighing sensor, the crank push cylinder, the good product push cylinder and the abnormal product push cylinder respectively.

[0010] The whole system uses the PLC controller as the central controller, and compares the weight data signal transmitted by the steel ball on the weighing sensor with the pre-entered standard steel ball weight range. The weight range of the standard steel ball is pre-set in the PLC controller between 8kg and 8.5kg. When the steel ball to be tested falls on the weighing sensor and the weighing data transmitted to the PLC controller is less than 8kg or greater than 8.5kg, the PLC controller will control the abnormal product push cylinder to push the steel ball on the weighing platform into the abnormal steel ball outlet; conversely, the PLC controller will control the good product push cylinder to push the steel ball on the weighing platform into the good product steel ball outlet.

[0011] Furthermore, the ball storage platform is tilted downward in the direction of the ball outlet, and the angle with the horizontal plane is not higher than 30°. By designing the ball storage platform to be tilted downward in the direction of the ball outlet, the steel balls can move toward the ball outlet due to their own gravity, and then fall into the ball turner, thereby reducing energy consumption during the transmission of the steel balls and reducing production costs; according to experiments, if the tilt angle of the ball storage platform in the direction of the ball outlet exceeds 30°, a large number of steel balls will be concentrated at the ball outlet, and when the first steel ball enters the ball turner, the subsequent steel balls will also fall from the ball outlet, making it impossible to weigh the steel balls in an orderly manner.

[0012] Furthermore, a spherical groove is provided in the center of the weighing platform, which can improve the stability of the steel ball falling from the ball flipper onto the weighing platform, and prevent the steel ball from continuing to move due to inertia on the weighing platform or even falling from the weighing platform, causing inaccurate weighing or failure to weigh.

[0013] Furthermore, the good steel ball outlet and the abnormal product outlet are symmetrically distributed at both ends of the weighing platform, which can make the steel ball picking more accurate and avoid the situation where the good product outlet and the abnormal product outlet are on the same side and the pushing device pushes the abnormal product into the good product outlet or the good product into the abnormal product outlet due to position error.

[0014] Furthermore, the shapes of the outlets for good quality steel balls and abnormal quality steel balls are circular, so as to avoid the steel balls being stuck when being pushed into the corresponding outlets, thereby affecting the subsequent steel ball picking;

[0015] Due to the adoption of the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0016] (1) The abnormal steel ball picking system provided by the utility model can accurately distinguish steel balls of different qualities according to weight by adding a weighing sensor and a sorting cylinder group to the ball turning device, thereby improving the steel ball screening accuracy and avoiding the error that is easy to be generated when manually weighing and comparing large quantities, resulting in incomplete sorting of abnormal steel balls;

[0017] (2) The abnormal steel ball picking system provided by the utility model controls the abnormal steel ball picking work through a PLC automatic controller, replacing manual weighing and sorting. This not only avoids manual weighing and checking of steel balls, thereby improving the efficiency of steel ball picking, but also avoids the risk of fingers being easily pinched by steel balls during manual sorting. At the same time, it reduces a large amount of labor input and reduces the labor cost of steel ball production.

[0018] In summary, the abnormal steel ball picking system provided by the utility model realizes the automation of abnormal steel ball picking, can effectively distinguish abnormal steel balls from good steel balls, and improves the safety factor of steel ball production, while reducing the labor cost of steel ball production.

[0019] The utility model is suitable for the production and processing of steel balls and is used for picking out abnormal steel balls produced in the process of steel ball production. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0022] Figure 2 It is a top view of an embodiment of the utility model.

[0023] In the figure: 1 represents the ball storage platform; 2 represents the ball turner; 21 represents the crank of the ball turner; 3 represents the weighing sensor; 4 represents the PLC controller; 5 represents the crank push cylinder; 6 represents the good product push cylinder; 7 represents the abnormal product push cylinder; 8 represents the weighing platform; 81 represents the good product steel ball outlet; 82 represents the abnormal steel ball outlet. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and understand the present invention, and are not used to limit the present invention.

[0025] Embodiment A system for picking out abnormal steel balls

[0026] like Figure 1 and Figure 2 As shown, this embodiment includes a ball storage platform 1, a ball turning device 2, a PLC controller 4, a crank push cylinder 5, a good product push cylinder 6, an abnormal product push cylinder 7 and a weighing platform 8. Among them, the ball storage platform 1 is inclined downward, and the angle between the bottom and the horizontal plane is not higher than 30°; a ball turner 2 is fixed at the ball outlet of the ball storage platform 1, and a ball turner crank 21 is provided on the ball turner 2, and a crank pushing cylinder 5 is provided on one side of the ball turner crank 21, and the ball turner crank 21 is fixedly connected to the pushing end of the crank pushing cylinder 5; a weighing platform 8 is provided at the rotating end of the ball turner 2, and a weighing sensor 3 is provided inside the center position of the weighing platform 8, and a good steel ball outlet 81 and an abnormal steel ball outlet 82 are respectively provided at the left and right ends of the weighing platform 8, and the good steel ball outlet 81 is provided with a good pushing cylinder 6 according to the symmetrical direction of the central axis of the weighing platform, and the abnormal steel ball outlet 82 is provided with an abnormal product pushing cylinder 7 according to the symmetrical direction of the central axis of the weighing platform; the PLC controller 4 is electrically connected to the weighing sensor 3, the crank pushing cylinder 5, the good product pushing cylinder 6 and the abnormal product pushing cylinder 7 respectively.

[0027] When using this embodiment, the steel balls roll from the ball storage platform 1 into the ball turner 2 due to their own gravity, and the crank pushing cylinder 5 is controlled by the PLC controller 4 to push the crank 21 of the ball turner, so that the ball turner 2 rotates and the steel balls dropped therein are transferred to the weighing platform 8; the steel balls on the weighing platform 8 are weighed by the weighing sensor 3 built into the weighing platform 8, and the obtained weight is transmitted to the PLC controller 4 and compared with the preset standard steel ball weight; if the weight of the steel balls on the weighing platform 8 is within the standard weight range, the PLC controller 4 controls the good product pushing cylinder 6 to push the steel balls on the weighing platform 8 into the good product steel ball outlet 81; otherwise, the PLC controller 4 controls the abnormal product pushing cylinder 7 to push the steel balls on the weighing platform 8 into the abnormal steel ball outlet 82, thereby completing the steel ball picking work.

[0028] In practical applications, taking φ125 steel balls as an example, the PLC control program sets steel balls less than 8kg or greater than 8.5kg as defective steel balls, and steel balls in the weight range of 8kg-8.5kg as qualified steel balls. The defective steel balls are dumped onto the ball storage platform 1, and the program is started. The PLC controller 4 controls the crank push cylinder 5 to move, and a single steel ball is flipped onto the weighing platform 8 for weighing. According to the real-time feedback data from the weighing sensor 3, the PLC controller 4 controls the good product push cylinder 6 or the abnormal product push cylinder 7 to move according to the weighing feedback data (for example, when the feedback weighing data is 7.88KG, the abnormal product push cylinder 7 is controlled by the PLC controller 4 to move, and the steel balls on the weighing platform 8 are pushed to the abnormal product outlet 82 for packaging), and the steel balls are automatically pushed into the corresponding outlets, thereby realizing automatic screening and sorting of steel balls.

[0029] It should be noted that the above is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An abnormal steel ball picking system, characterized by: The abnormal steel ball picking system comprises a ball storage platform (1), a ball turning device (2), a PLC controller (4), a crank push cylinder (5), a good product push cylinder (6), an abnormal product push cylinder (7) and a weighing platform (8); Wherein, a ball turning device is provided at the ball outlet of the ball storage platform (1); The ball turning device (2) is controlled to rotate by a ball turning device crank (21), and the ball turning device crank (21) is fixedly connected to the pushing end of the crank pushing cylinder (5); The weighing platform (8) is arranged at the rotating end of the ball turning device (2), a weighing sensor (3) is arranged inside the weighing platform (8), and a good steel ball outlet (81) and an abnormal steel ball outlet (82) are also arranged on the weighing platform (8); The good steel ball outlet (81) is provided with a good product pushing cylinder (6) in a symmetrical direction along the central axis of the weighing platform (8), and the abnormal steel ball outlet (82) is provided with an abnormal product pushing cylinder (7) in a symmetrical direction along the central axis of the weighing platform (8); The PLC controller (4) is electrically connected to the weighing sensor (3), the crank push cylinder (5), the good product push cylinder (6) and the abnormal product push cylinder (7) respectively.

2. The abnormal steel ball picking system according to claim 1, characterized in that: The ball storage platform (1) is inclined downward in the direction of the ball outlet, and the angle between the platform and the horizontal plane is no greater than 30°.

3. The abnormal steel ball picking system according to claim 1 is characterized in that: A spherical groove is provided at the center of the weighing platform (8).

4. The abnormal steel ball picking system according to claim 1, characterized in that: The good steel ball outlet (81) and the abnormal steel ball outlet (82) are symmetrically distributed at two ends of the weighing platform.

5. The abnormal steel ball picking system according to any one of claims 1 to 4, characterized in that: The good steel ball outlet (81) and the abnormal steel ball outlet (82) are circular in shape.

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