Removal mechanism for X-ray foreign matter detector

Abstract

The utility model discloses a rejecting mechanism for an X-ray foreign matter detector, which comprises a conveying belt support, a driving roller and a driven roller are mounted on the conveying belt support through bearings, a conveying belt is mounted on the outer side of the driving roller and the outer side of the driven roller, a conveying motor is fixedly mounted on the conveying belt support, and the conveying motor is mounted on the conveying belt support. A roller shaft in the middle of the driving roller penetrates through the conveying belt support to be fixedly connected with an output shaft of the conveying motor. Stand columns are fixedly installed on the two sides of the conveying belt support, the upper ends of the stand columns are fixedly connected through a cross beam, an opposite moving structure is installed on the cross beam and used for driving the two installation bases to be close to or away from each other, and the lower ends of the installation bases are fixedly connected with a guide plate through connecting frames. One end of the guide plate is rotationally connected with the removing plate, and a driving rotating structure used for driving the removing plate to rotate is further mounted on the mounting seat. The removing mechanism for the X-ray foreign matter detector has the advantages of simple and stable structure, independent adjustment and convenience in use.

Description

Technical Field

[0001] The utility model relates to the technical field of X-ray foreign body detectors, in particular to a rejection mechanism for X-ray foreign body detectors. Background Art

[0002] When food is processed and packaged, it is often mixed with certain foreign matter, such as metal, glass, stone, plastic and rubber. These foreign matter not only affects the quality of the food, but some foreign matter is also difficult to detect with the naked eye and is easily eaten by consumers by mistake, causing food safety accidents. Therefore, X-ray foreign matter detectors are generally used to detect whether there are foreign matter in food.

[0003] The X-ray foreign body detection equipment currently in use mainly includes a detection box, a loading and unloading conveying mechanism for conveying food, the loading and unloading conveying mechanisms are arranged at both ends of the detection box, a light source system installed in the detection box and used to emit X-rays, and an image acquisition system for collecting projected X-rays.

[0004] During the inspection process, the food is transported to the inspection box through the loading conveyor mechanism. The inspection box is equipped with a light source system for emitting X-rays. After the food is inspected, the food reaches the unloading conveyor mechanism. If the food contains foreign matter, the food containing foreign matter needs to be removed to avoid it from being mixed with qualified products. The unloading conveyor mechanism includes a conveyor belt bracket and a conveyor belt installed on the conveyor belt bracket. The conveyor belt bracket is equipped with a guide component for guiding the food. When the foreign matter needs to be removed, the guide component drives the foreign matter to another direction to distinguish the food containing foreign matter from the qualified food.

[0005] At present, the guide assembly is a guide frame fixed by bolts and driven to swing by a cylinder. When dealing with foods of different widths, the guide assembly needs to be disassembled and then assembled according to the width of the food. The disassembly and assembly process requires the entire machine to be shut down, which affects the inspection progress, is time-consuming and labor-intensive, and cannot meet current inspection needs.

[0006] Chinese patent CN202320089126.5 discloses a rejection mechanism for an X-ray foreign body detector, which is specifically provided with a guide assembly and a rejection assembly, wherein the guide assembly includes two guide plates arranged opposite to each other, and the rejection assembly includes two rejection plates arranged opposite to each other, the guide plates are hinged to the rejection plates, and a guide plate adjustment mechanism for adjusting the distance between the two guide plates and a rejection plate swing mechanism for driving the two rejection plates to swing are installed on the conveyor belt bracket. However, the technical solution disclosed in the above patent has the following problems:

[0007] 1. When the guide plate adjustment mechanism adjusts the position of the guide plate, the reject plate swing mechanism needs to cooperate with the action, so the entire reject mechanism has many simultaneous action mechanisms and a complicated structure;

[0008] 2. During the position adjustment process of the guide plate, if the reject plate swing mechanism does not move, the guide plate will drive the reject plate to rotate. For example, when the two guide plates move away from each other, the two reject plates will move closer to each other and rotate. Then the two reject plates will collide and cause motion interference.

[0009] Therefore, the above-mentioned rejection mechanism cannot meet the usage requirements. Summary of the invention

[0010] In view of the above-mentioned deficiencies of the prior art, the technical problem to be solved by this patent application is how to provide a rejection mechanism for an X-ray foreign body detection machine which has a simple and stable structure, can be adjusted individually, and is easy to use.

[0011] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0012] A rejection mechanism for an X-ray foreign body detector comprises a conveyor belt bracket, a driving roller and a driven roller are mounted on the conveyor belt bracket through bearings, a conveyor belt is mounted on the outside of the driving roller and the driven roller, a conveyor motor is fixedly mounted on the conveyor belt bracket, and a roller shaft in the middle of the driving roller passes through the conveyor belt bracket and is fixedly connected to an output shaft of the conveyor motor;

[0013] Both sides of the conveyor belt support are fixedly installed with columns, the upper ends of the columns are fixedly connected by a crossbeam, and a counter-moving structure is installed on the crossbeam. The counter-moving structure is used to drive the two mounting seats to move closer to or away from each other, and the lower ends of the mounting seats are fixedly connected to the guide plate through a connecting frame;

[0014] One end of the guide plate is rotatably connected to the reject plate, and a driving rotation structure for driving the reject plate to rotate is also installed on the mounting seat.

[0015] In this way, according to the width of the food to be inspected, the distance between the two guide plates is adjusted by the opposing moving structure to adapt to the product; after the food to be inspected is inspected by the inspection box, it reaches the conveyor belt and is located between the two guide plates. The reject plate is driven to rotate by the driving rotating structure to reject the food containing foreign matter. That is, the reject plate is driven to rotate by the driving rotating structure to guide the food, so that the food containing foreign matter is conveyed to another position and then reset. The whole process is automatic, without stopping, and the efficiency is high.

[0016] Specifically, when adjusting the position of the guide plate, the structure is simple and there is no need to consider whether the rotation drive structure interferes, making the overall action more stable.

[0017] Among them, the opposite moving structure includes a bidirectional screw, a mounting groove is opened on the cross beam, the bidirectional screw is installed in the mounting groove through a bearing, one end of the bidirectional screw passes through the cross beam and is fixedly connected to the output shaft of the servo motor, the servo motor is fixedly installed on the cross beam, the thread rotation direction of the bidirectional screw is left-handed and right-handed from the middle to both ends respectively, both ends of the bidirectional screw are threadedly connected with nut blocks, the nut block is a rectangular block and slides in cooperation with the mounting groove, and the nut block is fixedly connected to the mounting seat.

[0018] Among them, two ear seats are fixed on the end of the rejection plate, and the ear seats are fixedly installed with a vertically arranged rotating shaft. The guide plate is provided with an opening allowing the ear seats to pass through, and the rotating shaft is rotatably matched with the guide plate.

[0019] Among them, the mounting seat is U-shaped and the opening is facing one side, the driving rotation structure includes a cylinder fixedly mounted on the mounting seat, the cylinder rod of the cylinder is fixedly mounted with a slider, the mounting seat is provided with a sliding groove allowing the slider to slide and cooperate, the slider passes through the sliding groove and is fixedly connected to the rack, the rack is slidably engaged with the mounting seat, and the upper end of the rotating shaft is fixedly mounted with a gear meshing with the rack.

[0020] Wherein, a guide rail is fixedly installed in the mounting seat, and a guide groove which is slidably matched with the guide rail is opened on the rack.

[0021] Wherein, the rotating shaft is rotatably connected to the connecting frame.

[0022] In summary, the rejection mechanism for the X-ray foreign body detection machine has the advantages of simple and stable structure, individual adjustment and easy use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The utility model is a schematic diagram of the structure of a rejection mechanism for an X-ray foreign body detection machine.

[0024] Figure 2 It is a partial structural schematic diagram of a rejection mechanism for an X-ray foreign body detection machine described in the utility model.

[0025] Figure 3 for Figure 2 A magnified schematic diagram of center A. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the accompanying drawings. In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "upper, lower" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0027] like Figure 1-3 As shown, a rejection mechanism for an X-ray foreign body detection machine includes a conveyor belt bracket 1, on which a driving roller and a driven roller are installed through bearings, a conveyor belt 2 is installed on the outside of the driving roller and the driven roller, a conveyor motor is fixedly installed on the conveyor belt bracket, and a roller shaft in the middle of the driving roller passes through the conveyor belt bracket and is fixedly connected to the output shaft of the conveyor motor;

[0028] The two sides of the conveyor belt support are fixedly installed with columns 3, the upper ends of the columns are fixedly connected by a crossbeam 4, and a counter-moving structure is installed on the crossbeam. The counter-moving structure is used to drive two mounting seats 5 to move closer to or away from each other, and the lower ends of the mounting seats are fixedly connected to the guide plate 7 through a connecting frame 6;

[0029] One end of the guide plate is rotatably connected to the reject plate 8, and a driving rotating structure for driving the reject plate to rotate is also installed on the mounting seat.

[0030] In this way, according to the width of the food to be inspected, the distance between the two guide plates is adjusted by the opposing moving structure to adapt to the product; after the food to be inspected is inspected by the inspection box, it reaches the conveyor belt and is located between the two guide plates. The reject plate is driven to rotate by the driving rotating structure to reject the food containing foreign matter. That is, the reject plate is driven to rotate by the driving rotating structure to guide the food, so that the food containing foreign matter is conveyed to another position and then reset. The whole process is automatic, without stopping, and the efficiency is high.

[0031] Specifically, when adjusting the position of the guide plate, the structure is simple and there is no need to consider whether the rotation drive structure interferes, making the overall action more stable.

[0032] During implementation, the counter-moving structure includes a bidirectional screw 11, a mounting groove is opened on the crossbeam, the bidirectional screw is installed in the mounting groove through a bearing, one end of the bidirectional screw passes through the crossbeam and is fixedly connected to the output shaft of the servo motor 12, the servo motor is fixedly installed on the crossbeam, the thread rotation direction of the bidirectional screw is left-handed and right-handed from the middle to both ends respectively, both ends of the bidirectional screw are threadedly connected with nut blocks, the nut block is a rectangular block and slides in cooperation with the mounting groove, and the nut block is fixedly connected to the mounting seat.

[0033] In this way, the servo motor drives the bidirectional screw to rotate, and drives the mounting seats to move closer to or away from each other through the nut block.

[0034] During implementation, two ear seats are fixed at the ends of the rejection plate, and the ear seats are fixedly mounted with a vertically arranged rotating shaft 13, and the guide plate is provided with an opening for allowing the ear seats to pass through, and the rotating shaft is rotatably matched with the guide plate, so that the guide plate is rotatably connected with the rejection plate.

[0035] During implementation, the mounting seat is U-shaped with an opening facing one side, and the driving rotation structure includes a cylinder 14 fixedly mounted on the mounting seat, a slider is fixedly mounted on the cylinder rod of the cylinder, a slide groove 15 is provided on the mounting seat to allow the slider to slide and cooperate, the slider passes through the slide groove and is fixedly connected to the rack 16, the rack cooperates with the mounting seat, and a gear 17 meshing with the rack is fixedly mounted on the upper end of the rotating shaft. When it is necessary to drive the reject plate to rotate, the cylinder rod of the cylinder moves, driving the slider to slide along the slide groove, and then driving the rack to move, and the gear is driven to rotate through the rack, and the gear drives the rotating shaft, the reject sleeve and the reject plate to rotate, and the structure is simple and easy to use.

[0036] During implementation, a guide rail 18 is fixedly installed in the mounting seat, and a guide groove slidably matched with the guide rail is provided on the rack, so as to guide the movement of the rack.

[0037] During implementation, the rotating shaft is rotatably connected to the connecting frame, so as to improve the connection stability.

[0038] Finally, it should be noted that those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include these modifications and variations.

Claims

1. A rejection mechanism for an X-ray foreign body detector, comprising a conveyor belt bracket, on which a driving roller and a driven roller are mounted through bearings, a conveyor belt is mounted on the outside of the driving roller and the driven roller, a conveyor motor is fixedly mounted on the conveyor belt bracket, and a roller shaft in the middle of the driving roller passes through the conveyor belt bracket and is fixedly connected to the output shaft of the conveyor motor; characterized in that: Both sides of the conveyor belt support are fixedly installed with columns, the upper ends of the columns are fixedly connected by a crossbeam, and a counter-moving structure is installed on the crossbeam. The counter-moving structure is used to drive the two mounting seats to move closer to or away from each other, and the lower ends of the mounting seats are fixedly connected to the guide plate through a connecting frame; One end of the guide plate is rotatably connected to the reject plate, and a driving rotating structure for driving the reject plate to rotate is also installed on the mounting seat; Two ear seats are fixed at the end of the rejection plate, and a vertically arranged rotating shaft is fixedly installed on the ear seat. The guide plate is provided with an opening allowing the ear seats to pass through, and the rotating shaft is rotatably matched with the guide plate; The mounting seat is U-shaped and has an opening facing one side. The driving rotation structure includes a cylinder fixedly mounted on the mounting seat. A slider is fixedly mounted on the cylinder rod of the cylinder. A slide groove allowing the slider to slide and cooperate is provided on the mounting seat. The slider passes through the slide groove and is fixedly connected to the rack. The rack is slidably matched with the mounting seat. A gear meshing with the rack is fixedly mounted on the upper end of the rotating shaft. A guide rail is fixedly installed in the mounting seat, and a guide groove which is slidably matched with the guide rail is opened on the rack.

2. The rejection mechanism for an X-ray foreign body detector according to claim 1, characterized in that: The oppositely moving structure includes a bidirectional screw, a mounting groove is opened on the crossbeam, the bidirectional screw is installed in the mounting groove through a bearing, one end of the bidirectional screw passes through the crossbeam and is fixedly connected to the output shaft of the servo motor, the servo motor is fixedly installed on the crossbeam, the thread rotation direction of the bidirectional screw is left-handed and right-handed respectively from the middle to the two ends, both ends of the bidirectional screw are threadedly connected with nut blocks, the nut block is a rectangular block and slides in cooperation with the mounting groove, and the nut block is fixedly connected to the mounting seat.

3. The rejection mechanism for an X-ray foreign body detector according to claim 2, characterized in that: The rotating shaft is rotatably connected to the connecting frame.

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