Chip resistor screening device

Abstract

The utility model discloses a chip resistor screening device which comprises a working platform, a placing box is connected to the working platform in a sliding mode, a plurality of positioning grooves are formed in the lower inner wall of the placing box, a push plate is connected to the interior of the placing box in a sliding mode, and a mounting frame is fixedly connected to the upper surface of the working platform. An automatic telescopic ejector rod is fixedly connected to the upper inner wall of the mounting frame, a mounting flat plate is fixedly connected to the lower end of the automatic telescopic ejector rod, a plurality of ranking plates are fixedly connected to the lower surface of the mounting flat plate, an isolation hood is fixedly connected to the upper surface of the working platform, and a screening flat plate is clamped to the upper surface of the working platform. A falling opening is formed in the surface of the working platform, and a defective collecting box is clamped to the lower surface of the working platform. By means of the device, the situation that resistors are overlapped in the screening process is avoided, and it is guaranteed that the resistors cannot be stuck when screened.

Description

Technical Field

[0001] The utility model relates to the technical field of screening devices, in particular to a chip resistor screening device. Background Art

[0002] When screening the size of chip resistors, manual screening is usually required. The workload is large and manual fatigue will affect the screening accuracy and the overall efficiency of the screening work. The "chip resistor screening device" disclosed on the China Patent Network, with the application number "200920221798.7", improves the overall efficiency of resistor screening through a screening mechanism and an electromagnetic vibration mechanism. However, when the device is in use, the resistors are discharged in a scattered manner. If the resistors overlap, multiple resistors will be stuck in the screening holes, seriously affecting the overall process of the resistor screening work. The electromagnetic vibration mechanism will also cause the resistors stuck in the screening holes to be damaged by collision, resulting in the destruction of the resistor quality. Utility Model Content

[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a chip resistor screening device. When the device is in use, it is ensured that there is no overlap of resistors during the feeding process and that there is no hidden danger of resistors getting stuck in the screening holes during screening, thereby improving the smoothness of the resistor screening work and the work efficiency of the resistor screening work.

[0004] The utility model also provides a device for screening chip resistors as described above, comprising: a working platform, a placement box is slidably connected to the working platform, a plurality of positioning grooves are arranged on the lower inner wall of the placement box, and when screening chip resistors, the positioning grooves accommodate chip resistors, a push plate is slidably connected to the inside of the placement box, and the push plate passes through the left wall of the placement box, an installation frame is fixedly connected to the upper surface of the working platform, and the installation frame is located on the right side of the placement box, an automatic telescopic top rod is fixedly connected to the upper inner wall of the installation frame, and a mounting plate is fixedly connected to the lower end of the automatic telescopic top rod, and a plurality of positioning plates are fixedly connected to the lower surface of the mounting plate The ranking plates are all in a concave shape, and the ranking plates are relatively distributed with the positioning grooves up and down. An isolation cover is fixedly connected to the upper surface of the working platform, and the isolation cover is located on the right side of the mounting frame. A screening plate is clamped on the upper surface of the working platform, and the screening plate is located inside the isolation cover, and the height of the screening plate is lower than the height of the bottom wall of the placement box. A plurality of drop openings are provided on the surface of the working platform, and the drop openings are relatively distributed with the positioning grooves on the left and right, and the drop openings are larger than the drop holes of the screening plate. A defective collection box is clamped on the lower surface of the working platform, and the defective collection box is located directly below the drop openings.

[0005] According to the chip resistor screening device described in the utility model, the left surface of the placement box is fixedly connected with the installation box, and when the device is not in use, the push plate is located inside the installation box. Through the above device, the push plate is prevented from affecting the placement of the resistor.

[0006] According to the chip resistor screening device described in the utility model, the left inner wall of the installation box is fixedly connected with an automatic telescopic push rod, and the right end of the automatic telescopic push rod is fixedly connected to the left surface of the push plate. Through the above device, the convenience of pushing the resistor is improved.

[0007] According to the chip resistor screening device described in the utility model, a cleaning cotton brush is clamped in the groove of the ranking plate, and when the device is used, the lower surface of the cleaning cotton brush is in close contact with the upper surface of the chip resistor. Through the above device, impurities on the surface of the resistor can be easily cleaned.

[0008] According to the chip resistor screening device described in the utility model, the upper surface of the cleaning cotton brush is fixedly connected with a mounting base, and the mounting base is clamped with the groove of the ranking plate. Through the above device, the stability of the cleaning brush is improved.

[0009] According to the chip resistor screening device described in the utility model, the left and right ends of the mounting base are threadedly connected with reinforcing screws, and the reinforcing screws penetrate the mounting base and are threadedly connected to the lower surface of the ranking plate. Through the above device, the stability of the cleaning mechanism is improved.

[0010] According to the chip resistor screening device described in the utility model, the lower surface of the working platform is fixedly connected with a supporting plate, and the upper surface of the supporting plate is in close contact with the lower surface of the defective collection box. Through the above device, the stability of the defective collection box is improved.

[0011] According to the chip resistor screening device described in the utility model, the lower surface of the push plate is provided with protrusions, and the protrusions are all located inside the positioning grooves. Through the above device, the accuracy of pushing the chip resistors is improved.

[0012] Beneficial Effects

[0013] 1. Compared with the prior art, this chip resistor screening device ensures that there will be no overlap of chip resistors during the screening and feeding process through positioning grooves, ranking plates, push plates, protrusions, and automatically retractable push rods, ensures that there will be no jamming during the resistor screening process, and improves the overall efficiency of the resistor screening work.

[0014] 2. Compared with the prior art, this chip resistor screening device facilitates cleaning of impurities on the surface of the resistor by installing a base, reinforcing screws, and cleaning a cotton brush. It is also convenient for changing the height limit of the ranking plate, further ensuring that there will be no resistor overlap during the resistor feeding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0016] Figure 1 This is a left-side structural diagram of a chip resistor screening device of the utility model;

[0017] Figure 2 This is a right view structural diagram of a chip resistor screening device of the utility model;

[0018] Figure 3 The utility model is a chip resistor screening device Figure 1 The enlarged structural diagram at A in the middle;

[0019] Figure 4 The utility model is a chip resistor screening device Figure 1 Enlarged structural diagram of point B in the middle

[0020] Figure 5 This is a bottom view of the structure of a chip resistor screening device of the utility model.

[0021] Legend:

[0022] 1. Working platform; 2. Placement box; 3. Installation frame; 4. Isolation cover; 5. Installation plate; 6. Push plate; 7. Ranking plate; 8. Installation base; 9. Positioning groove; 10. Screening plate; 11. Drop opening; 12. Defective collection box; 13. Support plate; 14. Automatic telescopic top rod; 15. Automatic telescopic push rod; 16. Installation box; 17. Cleaning cotton brush; 18. Reinforcement screw; 19. Protrusion. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0024] Reference Figure 1-5The utility model embodiment of a chip resistor screening device includes: a working platform 1, a placement box 2 is slidably connected to the working platform 1, and a plurality of positioning grooves 9 are arranged on the lower inner wall of the placement box 2. When screening the chip resistors, the positioning grooves 9 accommodate the chip resistors, and the positioning grooves 9 provide conditions for orderly arrangement of the resistors to ensure that the resistors are not too scattered when feeding. A push plate 6 is slidably connected to the inside of the placement box 2, and the push plate 6 passes through the left wall of the placement box 2. A protrusion 19 is arranged on the lower surface of the push plate 6, and the protrusions 19 are all located inside the positioning grooves 9. An installation box 16 is fixedly connected to the left surface of the placement box 2. When the device is not in use, the push plate 6 is located inside the installation box 16, and an automatic telescopic push rod 15 is fixedly connected to the left inner wall of the installation box 16. The right end of the automatic telescopic push rod 15 is fixedly connected to the left surface of the push plate 6, and the push plate 6 cooperates with the automatic telescopic push rod 15 to facilitate the transfer of the chip resistors in the positioning groove 9 to the surface of the screening plate 10.

[0025] The upper surface of the working platform 1 is fixedly connected with a mounting frame 3, and the mounting frame 3 is located on the right side of the placement box 2. The upper inner wall of the mounting frame 3 is fixedly connected with an automatic telescopic top rod 14, and the lower end of the automatic telescopic top rod 14 is fixedly connected with a mounting plate 5. The lower surface of the mounting plate 5 is fixedly connected with a plurality of ranking plates 7, and the ranking plates 7 are all concave in shape. The ranking plates 7 and the positioning grooves 9 are relatively distributed up and down, and the grooves at the lower ends of the ranking plates 7 cooperate with the positioning grooves 9 to push the chip resistors into the inside of the positioning grooves 9 through collision.

[0026] A cleaning cotton brush 17 is clamped in the groove of the ranking plate 7. When the device is used, the lower surface of the cleaning cotton brush 17 is in close contact with the upper surface of the chip resistor. The upper surface of the cleaning cotton brush 17 is fixedly connected to the mounting base 8, and the mounting base 8 is clamped in the groove of the ranking plate 7. The cleaning cotton brush 17 and the mounting base 8 cooperate with each other to form a cleaning mechanism, which is convenient for removing dust and impurities on the surface of the resistor. At the same time, the cleaning mechanism inside the groove of the ranking plate 7 also has a height limiting function to prevent the resistor from overlapping up and down inside the positioning groove 9. The left and right ends of the mounting base 8 are threadedly connected with reinforcing screws 18, and the reinforcing screws 18 penetrate the mounting base 8 and are threadedly connected with the lower surface of the ranking plate 7. The presence of the reinforcing screws 18 improves the stability of the cleaning mechanism when it is in action, and facilitates the user to adjust the engagement amount of the reinforcing screws 18 and the ranking plate 7, thereby changing the height of the cleaning mechanism and achieving the effect of changing the height limit of the cleaning mechanism.

[0027] An isolation cover 4 is fixedly connected to the upper surface of the working platform 1, and the isolation cover 4 is located on the right side of the mounting frame 3. A screening plate 10 is clamped on the upper surface of the working platform 1, and the screening plate 10 is located inside the isolation cover 4, and the height of the screening plate 10 is lower than the height of the bottom wall of the placement box 2. A plurality of falling openings 11 are provided on the surface of the working platform 1, and the falling openings 11 are relatively distributed to the left and right of the positioning grooves 9, and the falling openings 11 are larger than the falling holes of the screening plate 10. A defective collection box 12 is clamped on the lower surface of the working platform 1, and the defective collection box 12 is located directly below the falling openings 11. The above devices cooperate with each other to facilitate the screening and collection of smaller defective products. A supporting plate 13 is fixedly connected to the lower surface of the working platform 1, and the upper surface of the supporting plate 13 is in close contact with the lower surface of the defective collection box 12. The presence of the supporting plate 13 improves the stability of the defective collection box 12 during use.

[0028] Working principle: first control the automatic telescopic push rod 15 to store the push plate 6 into the inside of the installation box 16, and clamp the screening plate 10 of appropriate size with the working platform 1. At this time, place the resistor in the placement box 2. After adding, push the placement box 2, and at the same time control the automatic telescopic top rod 14 to drop the installation plate 5, so that the installation plate 5 drops to the height where the ranking plate 7 can block the resistor. In the process of pushing the placement box 2, the ranking plate 7 and the cleaning mechanism are used to push the chip resistor into the positioning groove 9. After the right end of the placement box 2 contacts the screening plate 10, control the extension of the automatic telescopic push rod 15 to make the push plate 6 push the resistor inside the positioning groove 9, and pay attention to clamping the storage box for qualified products on the right side of the working platform 1. After the resistor is pushed to the screening plate 10, small-sized defective products will fall into the defective collection box 12.

[0029] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A chip resistor screening device, characterized in that: The device comprises: a working platform (1), the working platform (1) being slidably connected to a placement box (2), a lower inner wall of the placement box (2) being provided with a plurality of positioning grooves (9), and when screening chip resistors, the positioning grooves (9) are used to store chip resistors, and a push plate (6) is slidably connected inside the placement box (2), and the push plate (6) passes through the left wall of the placement box (2); The upper surface of the working platform (1) is fixedly connected with a mounting frame (3), the mounting frame (3) is located on the right side of the placement box (2), the upper inner wall of the mounting frame (3) is fixedly connected with an automatic telescopic top rod (14), the lower end of the automatic telescopic top rod (14) is fixedly connected with a mounting plate (5), the lower surface of the mounting plate (5) is fixedly connected with a plurality of ranking plates (7), the ranking plates (7) are all in the shape of a concave letter, and the ranking plates (7) and the positioning grooves (9) are arranged relative to each other up and down; The upper surface of the working platform (1) is fixedly connected with an isolation cover (4), and the isolation cover (4) is located on the right side of the installation frame (3). The upper surface of the working platform (1) is clamped with a screening plate (10), and the screening plate (10) is located inside the isolation cover (4). The height of the screening plate (10) is lower than the height of the bottom wall of the placement box (2). The surface of the working platform (1) is provided with a plurality of drop openings (11), and the drop openings (11) are distributed opposite to the positioning grooves (9) on the left and right, and the drop openings (11) are larger than the drop holes of the screening plate (10). The lower surface of the working platform (1) is clamped with a defective collection box (12), and the defective collection box (12) is located directly below the drop openings (11).

2. A chip resistor screening device according to claim 1, characterized in that: The left surface of the placement box (2) is fixedly connected to a mounting box (16); when the device is not in use, the push plate (6) is located inside the mounting box (16).

3. A chip resistor screening device according to claim 2, characterized in that: An automatic telescopic push rod (15) is fixedly connected to the left inner wall of the installation box (16), and the right end of the automatic telescopic push rod (15) is fixedly connected to the left surface of the push plate (6).

4. A chip resistor screening device according to claim 1, characterized in that: A cleaning cotton brush (17) is clamped in the groove of the ranking plate (7); when the device is used, the lower surface of the cleaning cotton brush (17) is in close contact with the upper surface of the chip resistor.

5. A chip resistor screening device according to claim 4, characterized in that: The upper surface of the cleaning cotton brush (17) is fixedly connected to a mounting base (8), and the mounting base (8) is clamped with a groove of the positioning plate (7).

6. A chip resistor screening device according to claim 5, characterized in that: The left and right ends of the mounting base (8) are threadedly connected with reinforcement screws (18), and the reinforcement screws (18) penetrate the mounting base (8) and are threadedly connected with the lower surface of the positioning plate (7).

7. The chip resistor screening device according to claim 1, characterized in that: A supporting plate (13) is fixedly connected to the lower surface of the working platform (1), and the upper surface of the supporting plate (13) is in close contact with the lower surface of the defective collection box (12).

8. The chip resistor screening device according to claim 1, characterized in that: The lower surface of the push plate (6) is provided with a protrusion (19), and the protrusion (19) is located inside the positioning groove (9).

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