Screening equipment for nut production

Abstract

The utility model discloses screening equipment for nut production. The screening equipment comprises a base, a conveyor is installed on the base, a supporting frame is installed on the conveyor, a visual inspection instrument is installed on the supporting frame, and a fixing frame is installed on the conveyor. A lead screw module is installed on the fixing frame, an exchange motor is installed at the moving end of the lead screw module, a transverse rod is installed at the driving end of the exchange motor, and two picking assemblies are installed on the transverse rod. The utility model relates to the technical field of screening equipment, the two pickup assemblies are arranged and can alternately pick up defective nuts under the action of the exchange motor, and if one of the two pickup assemblies needs to be maintained, the normally working pickup assembly moves through the work of the screw rod module to pick up the defective nuts, so that the maintenance efficiency of the defective nuts is improved. And the equipment does not need to be maintained by shutdown, so that the working continuity is ensured, and the nut screening efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of screening equipment, in particular to a nut production screening equipment. Background Art

[0002] During the nut production process and before delivery, it is necessary to use detection and screening equipment to detect the nuts and screen out the nuts that do not meet the requirements. For example, a lettering nut screening device with a publication number of CN213316275U is mainly used in nut production and has a simple structure and convenient screening. The lettering nut screening device includes a nut conveying track, which is a trough body composed of a bottom plate and two side plates. A scanner for scanning the lettering on the surface of the nut in the trough body is connected between the tops of the two side plates; a screening mechanism is connected between the tops of the two side plates, and the screening mechanism is located after the position of the scanner on the nut conveying path; through the cooperation of the nut conveying track, the scanner and the screening mechanism, when the nut is conveyed along the nut conveying track, the end face is scanned by the scanner. If the end face model is different from the model preset in the scanner, it is determined to be a different type, and the screening mechanism will remove it. It has the characteristics of simple structure and convenient screening; however, in this patent document, only a set of cylinders and magnetic disks for picking up defective nuts are provided. If they need to be maintained, the nut screening work needs to be stopped, resulting in low work efficiency;

[0003] There may already be technical means to solve the above problems in the prior art, but this case intends to provide an alternative or replacement technical solution. Utility Model Content

[0004] In order to solve the problems in the background technology, the utility model is implemented through the following technical solutions: a nut production and screening device, comprising a base, a conveyor is installed on the base, a support frame is installed on the conveyor, a visual inspection instrument is installed on the support frame, and a fixed frame is installed on the conveyor;

[0005] A screw module is installed on the fixed frame, an exchange motor is installed on the movable end of the screw module, a cross bar is installed on the driving end of the exchange motor, and two pickup components are installed on the cross bar;

[0006] The two picking assemblies each include a cylinder, which is installed at one end of the lower wall of the cross bar, a cross plate is installed at the telescopic end of the cylinder, an electromagnet is installed at the center of the lower wall of the cross plate, and two spring columns are installed on the lower wall of the cross plate. The two spring columns are symmetrically installed with the electromagnet as the center, and a pressure strip is installed at one end of the two spring columns.

[0007] Preferably, a collection box is installed on the base.

[0008] Preferably, the visual inspection instrument is located above the central axis of the conveyor.

[0009] Preferably, anti-slip rubber strips are installed on the lower wall surfaces of the two pressure strips.

[0010] Preferably, the screw module and the conveyor are installed perpendicular to each other in the horizontal direction.

[0011] Preferably, both of the two pressure strips are hollow structures. Beneficial Effects

[0012] The utility model provides a nut production screening device, which has the following beneficial effects: two picking assemblies are arranged, and under the action of an exchange motor, the two picking assemblies can alternately pick up defective nuts, and if one of the two picking assemblies needs maintenance, the normally working picking assembly is moved through the work of a screw module to pick up the defective nuts, without the need to stop the equipment for maintenance, thereby ensuring the continuity of work and improving the efficiency of nut screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a three-dimensional structural schematic diagram of a nut production and screening device described in the utility model.

[0014] Figure 2 It is a side structural schematic diagram of a nut production and screening device described in the utility model.

[0015] Figure 3 It is a schematic diagram of the top structure of a nut production and screening device described in the utility model.

[0016] In the figure: 1. base, 2. conveyor, 3. support frame, 4. visual inspection instrument, 5. fixed frame, 6. screw module, 7. exchange motor, 8. cross bar, 9. cylinder, 10. cross plate, 11. electromagnet, 12. pressure strip, 13. collection box, 14. anti-slip rubber strip, 15. spring column. DETAILED DESCRIPTION

[0017] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0018] Embodiment: Through the personnel in this field, all the electrical components in this case are connected to their adapted power supplies through wires, and a suitable controller should be selected according to the actual situation to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the working order. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and does not explain the electrical control.

[0019] See also Figure 1-3 The structure and principle of the visual inspection instrument 4 can refer to the appearance defect inspection machine of model SP-2230 produced by Shenzhen Siputek Technology Co., Ltd. One of the two picking components is located above the conveyor 2, and the other is on the side of the conveyor 2. The nuts move on the conveyor 2. After being inspected by the visual inspection instrument 4, the nuts with defective appearance are identified. When the nuts with defective appearance move to the electromagnet 11 in the picking component located above the conveyor 2, the conveyor 2 stops working, and then the cylinder 9 in the component extends, and the lower wall surface of the pressure strip 12 first fits the upper wall surfaces of the nuts on both sides of the defective nut. The cylinder 9 continues to extend, and the spring column 15 is compressed until the electromagnet 11 fits the defective nut. The electromagnet 11 works to absorb the defective nut, and then the cylinder 9 contracts, and the electromagnet 11 drives the defective nut to rise. At this time, the pressure strip 12 still fits the upper wall surfaces of the nuts on both sides of the defective nut under the action of the spring column 15 to prevent the nuts on both sides from moving. The cylinder 9 is in motion to ensure that the defective nut is picked up normally, the cylinder 9 continues to contract until the pressure bar 12 completely leaves the nut, and then the conveyor 2 continues to work, and then the reversing motor works, the defective nut is moved to the outside of the conveyor 2, the electromagnet 11 stops working, the defective nut falls off the electromagnet 11, and the user collects it. At this time, the other picking component is aligned with the conveyor 2 to prepare for the next work. When one of the two picking components needs maintenance, the reversing motor works to align the picking component that does not require maintenance with the conveyor 2. When the electromagnet 11 drives the defective nut to rise until the pressure bar 12 completely leaves the nut, the screw module 6 works forward, the defective nut is moved to the outside of the conveyor 2, the electromagnet 11 stops working, the defective nut falls off the electromagnet 11, and then the screw module 6 works in the reverse direction to move the electromagnet 11 above the conveyor 2 to prepare for the next work. There is no need to stop the equipment for maintenance, which ensures the continuity of work and improves the efficiency of nut screening.

[0020] As a preferred embodiment, further, a collecting box 13 is installed on the base 1 for collecting defective nuts;

[0021] As a preference, further, the visual inspection instrument 4 is located above the central axis of the conveyor 2;

[0022] As a preferred embodiment, further, the lower wall surfaces of the two pressure strips 12 are both installed with anti-slip rubber strips 14 to prevent the pressure strips 12 and the nuts from wearing each other;

[0023] As a preferred embodiment, further, the screw module 6 and the conveyor 2 are installed perpendicularly to each other in the horizontal direction;

[0024] Preferably, further, both pressure strips 12 are hollow structures for weight reduction.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A nut production screening device, comprising a base (1), a conveyor (2) mounted on the base (1), a support frame (3) mounted on the conveyor (2), a visual inspection instrument (4) mounted on the support frame (3), characterized in that: A fixing frame (5) is installed on the conveyor (2); A screw module (6) is mounted on the fixed frame (5), an exchange motor (7) is mounted on the movable end of the screw module (6), a cross bar (8) is mounted on the driving end of the exchange motor (7), and two pick-up assemblies are mounted on the cross bar (8); The two pickup assemblies each comprise a cylinder (9), the cylinder (9) being mounted on one end of the lower wall of the cross bar (8), a cross plate (10) being mounted on the telescopic end of the cylinder (9), an electromagnet (11) being mounted at the center of the lower wall of the cross plate (10), two spring columns (15) being mounted on the lower wall of the cross plate (10), the two spring columns (15) being symmetrically mounted with the electromagnet (11) as the center, and a pressure strip (12) being mounted on one end of each of the two spring columns (15).

2. A nut production and screening device according to claim 1, characterized in that: A collection box (13) is mounted on the base (1).

3. A nut production and screening device according to claim 1, characterized in that: The visual inspection instrument (4) is located above the central axis of the conveyor (2).

4. A nut production and screening device according to claim 1, characterized in that: Anti-slip rubber strips (14) are installed on the lower wall surfaces of the two pressure strips (12).

5. A nut production and screening device according to claim 4, characterized in that: The screw module (6) and the conveyor (2) are installed perpendicularly to each other in the horizontal direction.

6. The nut production and screening equipment according to claim 1, characterized in that: Both of the pressure strips (12) are hollow structures.

Images