Flat plate type metal detector

Abstract

The utility model discloses a flat plate type metal detector, which relates to the technical field of metal detectors and comprises a box body and a shell which are spliced together, two mounting plates are arranged and are respectively fixed on the bottom surfaces of the box body and the shell, rubber pads are uniformly distributed on the bottom surfaces of the mounting plates and are used for buffering vibration, and fixing pieces are used for fixing the mounting plates on a plate frame. The number of the fixing parts is two, round holes are formed in the mounting plate, guide rods penetrating through the round holes are arranged on the fixing parts, a rubber pad is mounted on the bottom face of the mounting plate, and shaking generated by the belt conveyor can be counteracted through the arrangement of the fixing parts, the guide rods, sliding sleeves and springs, so that the precision of the metal detector is improved, and heat insulation cotton is mounted in the shell, so that the metal detector is prevented from being damaged. The application range of the metal detector can be widened, the sealing ring is arranged on the shell, dust can be prevented from entering the splicing position of the shell and the box body, equipment damage is avoided, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of metal detectors, in particular to a flat-plate metal detector. Background Art

[0002] During material transportation, in order to prevent metal from being mixed in the materials, it is usually necessary to install a metal detector on the belt conveyor to remove the metal mixed in the materials, so as to ensure the smooth progress of the subsequent processing. The working principle of the metal detector is through the principle of electromagnetic induction. It uses a coil with alternating current passing through to generate an alternating magnetic field. The alternating magnetic field can generate induced eddy currents inside the metal object. The magnetic field generated by the eddy current affects the original magnetic field, thereby detecting the metal mixed in the material, thereby triggering the metal detector to alarm.

[0003] Metal detectors usually include a transmitting coil and a receiving coil. The transmitting coil is fed with an alternating current to generate an alternating magnetic field. The receiving coil consists of two coils of the same size and area. There are two ways to arrange them. The first is that the two receiving coils are located directly above or directly below the transmitting coil at the same time; the second is that the two receiving coils are located on both sides of the transmitting coil.

[0004] When the existing metal detector is installed on the frame, the metal detector will vibrate due to the vibration generated by the operation of the conveying device, resulting in changes in the relative positions of the transmitting coil and the receiving coil, which in turn affects the induced electromotive force of the receiving coil, causing the metal detector to report a false alarm and affecting the detection accuracy. Utility Model Content

[0005] The purpose of the utility model is to provide a flat metal detector to overcome the above-mentioned defects in the prior art.

[0006] According to the utility model, a flat-plate metal detector includes a box body and an outer shell, wherein the box body and the outer shell are spliced ​​together; a mounting plate, wherein two mounting plates are provided and are respectively fixed to the bottom surfaces of the box body and the outer shell; rubber pads are evenly distributed on the bottom surfaces of the mounting plates for buffering vibration; a fixing piece, wherein the fixing piece is used to fix the mounting plate on a plate frame, wherein the fixing piece is provided in two groups, each group having two fixing pieces, and is arranged in a "U" shape; a circular hole is opened on the mounting plate, and a guide rod penetrating the circular hole is provided on the fixing piece.

[0007] According to a further technical solution, a sliding sleeve is slidably provided on the outer periphery of the guide rod, a spring is provided inside the sliding sleeve, and the spring is used to press the sliding sleeve onto the mounting plate.

[0008] According to a further technical solution, two through holes are provided on the fixing member, and the fixing member and the plate frame are fixed together by inserting bolts.

[0009] According to a further technical solution, a reinforcing plate is fixed to one side of the fixing member, and reinforcing ribs are welded between the reinforcing plate and the fixing member.

[0010] According to a further technical solution, a main control box is installed in the box, the front side of the box can be opened, a splicing frame plate is fixed on the rear side of the box, and one end of the shell can be inserted into the splicing frame plate.

[0011] According to a further technical solution, a sealing ring is fixed on the outer surface of one end of the outer shell inserted into the splicing frame plate to prevent dust from entering the splicing frame plate.

[0012] According to a further technical solution, a detector body is slidably installed in the shell, and filling cavities are opened in four sides of the shell, and the filling cavities are filled with heat insulation cotton.

[0013] According to a further technical solution, a plug is provided on the detector body, and the plug can be inserted into the main control box and connected to the main control box via an electrical signal.

[0014] The beneficial effects of the utility model are as follows: by installing a rubber pad on the bottom surface of the mounting plate, and by arranging the fixing piece, the guide rod, the sliding sleeve and the spring, the shaking generated by the belt conveyor can be offset, thereby improving the accuracy of the metal detector; and by installing heat insulation cotton in the outer shell, the applicable scope of the metal detector can be improved; and by arranging a sealing ring on the outer shell, dust can be prevented from entering the joint between the outer shell and the box body to cause damage to the equipment, thereby improving the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model installed on a belt conveyor;

[0016] Figure 2 It is a three-dimensional schematic diagram of the utility model;

[0017] Figure 3 It is a bottom three-dimensional schematic diagram of the utility model;

[0018] Figure 4 It is a three-dimensional schematic diagram of the housing of the utility model;

[0019] Figure 5 It is another three-dimensional schematic diagram of the box body of the utility model;

[0020] Figure 6 It is a three-dimensional schematic diagram of the main control box of the utility model installed in the box body;

[0021] Figure 7 It is a three-dimensional schematic diagram of the sliding sleeve of the utility model;

[0022] Figure 8 It is a three-dimensional schematic diagram of the utility model spring installed in the sliding sleeve;

[0023] Fig. 9 It is a three-dimensional schematic diagram of the utility model in which the sliding sleeve is installed on the guide rod;

[0024] Fig.10 It is a three-dimensional schematic diagram of the fixing member of the utility model;

[0025] Fig.11 It is a bottom three-dimensional schematic diagram of the fixing member of the utility model.

[0026] In the figure: 10, box body; 11, conveyor belt; 12, plate frame; 13, support roller; 14, mounting plate; 15, fixing piece; 16, outer shell; 17, round hole; 18, rubber pad; 19, main control box; 20, guide rod; 21, sliding sleeve; 22, spring; 23, reinforcement plate; 24, through hole; 25, reinforcing rib; 26, detector body; 27, filling cavity; 28, splicing frame plate; 29, plug. DETAILED DESCRIPTION

[0027] In order to make the purpose and advantages of the utility model more clear, the utility model is specifically described in conjunction with the embodiments below. It should be understood that the following text is only used to describe a flat-plate metal detector or several specific implementations of the utility model, and does not strictly limit the protection scope of the specific request of the utility model. As used in this article, the terms up and down and left and right are not limited to their strict geometric definitions, but include reasonable and inconsistent tolerances for machining or human errors. The specific features of this flat-plate metal detector are described in detail below:

[0028] Reference Figure 1-Figure 11 According to an embodiment of the utility model, a flat-plate metal detector is installed on a belt conveyor. The conveyor includes a body, two plate frames 12 are installed on the body, a conveyor belt 11 is installed between the two plate frames 12, and support rollers 13 are installed on the two plate frames 12 at intervals. The support rollers 13 are used to support the conveyor belt 11 to prevent the material from pressing the conveyor belt 11 downward and causing it to be concave.

[0029] In one embodiment, the metal detector includes two mounting plates 14, which are respectively mounted on two plate frames 12. A box body 10 is fixed on the top surface of the mounting plate 14 on the front side, and a shell 16 is fixed on the top surface of the mounting plate 14 on the rear side. Rubber pads 18 are evenly distributed on the bottom surfaces of the two mounting plates 14. The rubber pads 18 are made of high-temperature resistant rubber material. When the conveyor belt 11 vibrates when transporting materials, the rubber pads 18 can offset part of the vibration, reduce the vibration, and improve the metal detection effect.

[0030] Specifically, when the mounting plate 14 is produced, evenly distributed mounting holes (not shown) are opened on the bottom surface of the mounting plate 14, and the rubber pads 18 are tightly inserted into the mounting holes.

[0031] In one embodiment, a main control box 19 is installed in the box body 10, and an openable door body (not shown) is provided on the front side of the box body 10. The door body seals the front side of the box body 10, and when closed, it can prevent dust from entering. A splicing frame plate 28 is fixed on the rear side of the box body 10, and the splicing frame plate 28 is welded to the box body 10, and one end of the outer shell 16 can be inserted into the splicing frame plate 28.

[0032] Specifically, the outer surface of one end of the outer shell 16 inserted into the splicing frame plate 28 is fixed with a sealing ring, which is made of high-temperature resistant rubber material. This design can improve the sealing effect and prevent dust from entering the splicing frame plate 28 or the detector, causing damage to the detector, affecting its service life, and causing inaccurate precision.

[0033] In one embodiment, fixing members 15 are provided on both sides of each mounting plate 14 , and the fixing members 15 are used to fix the mounting plate 14 on the plate frame 12 , and the fixing members 15 are configured in a “U” shape.

[0034] Specifically, through holes 24 are provided on both the front and rear sides of the fixing member 15, and threaded holes (not shown) into which bolts can be screwed are also provided at corresponding positions of the plate frame 12. The bolts are inserted into the threaded holes on the plate frame 12 through the through holes 24 to tighten and fix the fixing member 15 and the plate frame 12 together.

[0035] In one embodiment, left-right symmetrical circular holes 17 are provided on both sides of the mounting plate 14. There are four circular holes 17 on the same mounting plate 14, which are symmetrically distributed on the left and right sides of the mounting plate 14. Each of the fixing members 15 is provided with two guide rods 20 that can pass through the circular holes 17. A sliding sleeve 21 is slidably provided on the outer periphery of the guide rod 20. A spring 22 is provided in the sliding sleeve 21. The spring 22 is used to press the sliding sleeve 21 onto the mounting plate 14.

[0036] Specifically, the guide rod 20 can limit the front and rear and left and right freedom of the mounting plate 14 to prevent the mounting plate 14 from sliding back and forth and left and right. The spring 22 presses the sliding sleeve 21 onto the mounting plate 14 so that the mounting plate 14 can only move slightly up and down, thereby achieving the purpose of offsetting the vibration of the plate frame 12.

[0037] In one embodiment, a reinforcing plate 23 is fixed to one side of the fixing member 15, and a reinforcing rib 25 is welded between the reinforcing plate 23 and the fixing member 15. The reinforcing plate 23 and the plate frame 12 are also fastened by bolts to strengthen the fixation and prevent the fixing member 15 from loosening.

[0038] Specifically, the fixing member 15 , the reinforcing plate 23 , the reinforcing ribs 25 , the mounting plate 14 and the guide rod 20 are all made of metal materials.

[0039] In one embodiment, a detector body 26 is slidably installed in the shell 16, and a filling cavity 27 is opened in the four sides of the shell 16. The filling cavity 27 is filled with heat insulation cotton to achieve heat insulation effect, so that the metal detector can be used in a high temperature environment.

[0040] In one embodiment, a plug 29 is provided on the detector body 26 , and the plug 29 can be inserted into the main control box 19 and connected to the main control box 19 via electrical signals.

[0041] It will be clear to those skilled in the art that various modifications may be made to the above embodiments without departing from the overall spirit and concept of the present invention, and all of them fall within the protection scope of the present invention.

Claims

1. A flat metal detector, characterized in that: It comprises a box body (10) and an outer shell (16), wherein the box body (10) and the outer shell (16) are spliced ​​together; A mounting plate (14), wherein two mounting plates (14) are provided and are respectively fixed to the bottom surfaces of the box body (10) and the outer shell (16); The bottom surface of the mounting plate (14) is evenly provided with rubber pads (18) for absorbing vibrations; A fixing member (15), the fixing member (15) being used to fix the mounting plate (14) on the plate frame (12), the fixing member (15) being provided in two groups, two in each group, and being arranged in a "U" shape; The mounting plate (14) is provided with a circular hole (17), and the fixing member (15) is provided with a guide rod (20) penetrating the circular hole (17).

2. A flat-plate metal detector according to claim 1, characterized in that: A sliding sleeve (21) is slidably provided on the outer periphery of the guide rod (20), a spring (22) is provided inside the sliding sleeve (21), and the spring (22) is used to press the sliding sleeve (21) onto the mounting plate (14).

3. A flat-plate metal detector according to claim 1, characterized in that: The fixing member (15) is provided with two through holes (24), and the fixing member (15) and the plate frame (12) are fixed together by inserting bolts.

4. A flat-plate metal detector according to claim 1, characterized in that: A reinforcing plate (23) is fixed to one side of the fixing member (15), and a reinforcing rib (25) is welded between the reinforcing plate (23) and the fixing member (15).

5. A flat-plate metal detector according to claim 1, characterized in that: A main control box (19) is installed in the box body (10); the front side of the box body (10) can be opened; a splicing frame plate (28) is fixed on the rear side of the box body (10); and one end of the outer shell (16) can be inserted into the splicing frame plate (28).

6. A flat-plate metal detector according to claim 5, characterized in that: A sealing ring is fixed on the outer surface of one end of the outer shell (16) inserted into the splicing frame plate (28) to prevent dust from entering the splicing frame plate (28).

7. A flat-plate metal detector according to claim 5, characterized in that: A detector body (26) is slidably mounted in the shell (16), and filling cavities (27) are provided in the four sides of the shell (16), and the filling cavities (27) are filled with heat insulation cotton.

8. A flat-plate metal detector according to claim 7, characterized in that: The detector body (26) is provided with a plug (29), and the plug (29) can be inserted into the main control box (19) and connected to the main control box (19) via an electrical signal.

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