Inductance type proximity switch

Abstract

The utility model provides an inductance type proximity switch, which relates to the field of proximity switches and comprises a first inductance switch, a second inductance switch and a mounting rod, detection holes are arranged in the first inductance switch and the second inductance switch, and a hopper is arranged at the top of the first inductance switch. According to the utility model, falling metal materials are limited and guided through the hopper, the situation of missing detection caused by the fact that the metal materials are splashed out of the detection hole is avoided, when the metal materials pass through the detection hole of the first inductance switch, the quantity detection work is carried out, and the detection efficiency is improved. And then the detection data is conveyed into the detection hole of the second inductance switch through the connecting hopper for redetection work, the signal wire transmits the detection data of the first inductance switch and the second inductance switch into the receiver, and the detection data is fed back to the control equipment through the receiver for data comparison, so that the condition of detection errors can be avoided, and the detection accuracy is improved. And the detection accuracy of the device is improved.

Description

Technical Field

[0001] The utility model relates to the field of proximity switches, in particular to an inductive proximity switch. Background Art

[0002] Inductive proximity switch is also called eddy current proximity switch. It uses the eddy current generated inside the object when the conductive object approaches the proximity switch that can generate electromagnetic field. This eddy current reacts to the proximity switch, causing the internal circuit parameters of the switch to change. It can identify whether there is a conductive object approaching, and then control the switch on or off. It is widely used in the field of metal detection. There is currently a kind of Figure 1 The inductive proximity switch shown is composed of a proximity switch body and a detection hole. When metal materials fall through the detection hole, their quantity can be detected. The problem with this technical solution is that most of the above-mentioned inductive proximity switches are only provided with a single independent detection hole, and the aperture of the detection hole is subject to certain limitations. In some use cases, metal materials cannot accurately pass through the detection hole for detection, and when the number of materials increases, it may cause deviations in the detection results, which is inconvenient to use. Utility Model Content

[0003] The purpose of the utility model is to solve the following problems existing in the prior art: most of the above-mentioned inductive proximity switches are only provided with a single independent detection hole, and the aperture of the detection hole is limited to a certain extent. In some use cases, metal materials cannot accurately pass through the detection hole for detection, and when the number of materials increases, it may cause deviations in the detection results, which is inconvenient to use.

[0004] In order to solve the problems existing in the prior art, the utility model provides an inductive proximity switch, including a first inductive switch, a second inductive switch and a mounting rod, the first inductive switch and the second inductive switch are respectively provided at the top and the bottom of the outer periphery of the mounting rod, the first inductive switch and the second inductive switch are both provided with detection holes inside, a hopper is provided at the top of the first inductive switch, and a connecting hopper is provided between the bottom of the first inductive switch and the second inductive switch, and during use, the hopper and the connecting hopper play a limiting and guiding role for falling metal materials.

[0005] Furthermore, the detection holes of the first inductance switch and the second inductance switch are both provided with threaded rings on their peripheries, and the inner sides of the hopper and the connecting hopper are both provided with threaded grooves adapted to the threaded rings. The staff selects a hopper of corresponding caliber size according to the use requirements, and installs the hopper on the periphery of the detection hole of the first inductance switch through the threaded connection between the threaded groove and the threaded ring, and assembles the connecting hopper between the bottom detection hole of the first inductance switch and the top detection hole of the second inductance switch.

[0006] Furthermore, a receiver is provided on one side of the first inductance switch and the second inductance switch, and a signal wire is provided between one side of the first inductance switch and the second inductance switch and the receiver. The signal wire transmits the detection data of the first inductance switch and the second inductance switch to the receiver, and the data is fed back to the control device through the receiver for data comparison, thereby avoiding the occurrence of detection errors.

[0007] Furthermore, the periphery of the mounting rods at the top and bottom of the first inductance switch and the second inductance switch is provided with limit bolts, through which the first inductance switch and the second inductance switch can be mounted on the mounting rod for limit fixing.

[0008] Furthermore, a mounting seat is provided at the bottom of the mounting rod, and a mounting bolt is provided inside the mounting seat. The mounting seat and the mounting bolt facilitate the staff to install and fix the mounting rod.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] During the use of the utility model, the hopper plays a limiting and guiding role for the falling metal materials, so as to prevent the metal materials from splashing out of the outside of the detection hole and causing missed detection. When the metal materials pass through the detection hole of the first inductance switch, the quantity is detected, and then they are transported to the detection hole of the second inductance switch through the connecting bucket for re-inspection. The signal wire transmits the detection data of the first inductance switch and the second inductance switch to the receiver, and the data is fed back to the control device through the receiver for data comparison, thereby avoiding the occurrence of detection errors and increasing the accuracy of detection of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the local structure of the prior art;

[0012] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 3 It is a schematic diagram of the partial structure of the first inductive switch of the utility model;

[0014] Figure numerals: 1. first inductive switch; 2. detection hole; 3. hopper; 4. connecting bucket; 5. second inductive switch; 6. mounting rod; 7. receiver; 8. mounting seat; 9. threaded ring; 10. threaded groove. DETAILED DESCRIPTION

[0015] In order to make the technical means, creative features, objectives and effects of the utility model easy to understand, the utility model is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0016] The specific embodiments of the present utility model are described below in conjunction with the accompanying drawings.

[0017] Example 1

[0018] like Figure 1-3 As shown, an inductive proximity switch includes a first inductive switch 1, a second inductive switch 5 and a mounting rod 6. The first inductive switch 1 and the second inductive switch 5 are respectively provided at the top and the bottom of the periphery of the mounting rod 6. The first inductive switch 1 and the second inductive switch 5 are both provided with a detection hole 2 inside. A hopper 3 is provided at the top of the first inductive switch 1. A connecting hopper 4 is provided between the bottom of the first inductive switch 1 and the second inductive switch 5. A threaded ring 9 is provided around the detection hole 2 of the first inductive switch 1 and the second inductive switch 5. A threaded groove 10 adapted to the threaded ring 9 is provided on the inner side of the hopper 3 and the connecting hopper 4. A receiver 7 is provided on one side of the first inductive switch 1 and the second inductive switch 5. A signal wire is provided between one side of the first inductive switch 1 and the second inductive switch 5 and the receiver 7.

[0019] Description of working principle: The staff selects a hopper 3 corresponding to the caliber size according to the use requirements, and installs the hopper 3 on the periphery of the detection hole 2 of the first inductance switch 1 through the threaded connection of the threaded groove 10 and the threaded ring 9, and assembles the connecting hopper 4 between the bottom detection hole 2 of the first inductance switch 1 and the top detection hole 2 of the second inductance switch 5. During use, the hopper 3 plays a limiting and guiding role for the falling metal material to prevent the metal material from splashing out of the outside of the detection hole 2 and causing missed detection. When the metal material passes through the detection hole 2 of the first inductance switch 1, the quantity is detected, and then it is transported to the detection hole 2 of the second inductance switch 5 through the connecting hopper 4 for re-inspection. The signal wire transmits the detection data of the first inductance switch 1 and the second inductance switch 5 to the receiver 7, and the data is fed back to the control device through the receiver 7 for data comparison, thereby avoiding the occurrence of detection errors and increasing the accuracy of detection of the device.

[0020] The first inductive switch 1 is mainly an inductive proximity switch body, and when selecting, a conventional one can be selected from the prior art according to the needs.

[0021] The detection hole 2 is mainly used to detect the metal material passing through the hole. When selecting, a conventional selection can be made in the prior art according to the needs.

[0022] The hopper 3 is mainly used to limit and guide the falling metal materials. When selecting, a conventional one can be selected from the existing technology according to the needs.

[0023] The connecting bucket 4 is mainly used to connect the first inductive switch 1 and the detection hole 2 of the second inductive switch 5. When selecting, a conventional selection can be made in the prior art according to the needs.

[0024] The second inductive switch 5 is mainly an inductive proximity switch body, and when selecting, a conventional one can be selected from the prior art according to the needs.

[0025] The mounting rod 6 is mainly used to install and limit the first inductive switch 1 and the second inductive switch 5. When selecting, a conventional one can be selected from the prior art according to the needs.

[0026] The receiver 7 is mainly used for receiving and transmitting the detection data of the first inductive switch 1 and the second inductive switch 5 . When selecting, a conventional selection can be made in the prior art according to the needs.

[0027] The mounting seat 8 is mainly used to mount and fix the mounting rod 6. When selecting, a conventional one can be selected from the prior art according to the needs.

[0028] The threaded ring 9 is mainly used to cooperate with the threaded groove 10 to install and limit the hopper 3 or the connecting bucket 4. When selecting, a conventional selection can be made in the existing technology according to needs.

[0029] The thread groove 10 is mainly used to cooperate with the thread ring 9 to install and limit the hopper 3 or the connecting bucket 4. When selecting, a conventional selection can be made in the existing technology according to needs.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An inductive proximity switch, comprising a first inductive switch (1), a second inductive switch (5) and a mounting rod (6), characterized in that: A first inductive switch (1) and a second inductive switch (5) are respectively provided at the top and bottom of the outer periphery of the mounting rod (6); detection holes (2) are provided inside the first inductive switch (1) and the second inductive switch (5); a hopper (3) is provided at the top of the first inductive switch (1); and a connecting hopper (4) is provided between the bottom of the first inductive switch (1) and the second inductive switch (5).

2. The inductive proximity switch according to claim 1, characterized in that: The detection holes (2) of the first inductive switch (1) and the second inductive switch (5) are both provided with threaded rings (9) on their peripheries, and the hopper (3) and the connecting hopper (4) are both provided with threaded grooves (10) adapted to the threaded rings (9) on their inner sides.

3. The inductive proximity switch according to claim 1, characterized in that: A receiver (7) is provided on one side of the first inductance switch (1) and the second inductance switch (5), and a signal conductor is provided between one side of the first inductance switch (1) and the second inductance switch (5) and the receiver (7).

4. The inductive proximity switch according to claim 1, characterized in that: Limit bolts are provided on the periphery of the mounting rods (6) at the top and bottom of the first inductive switch (1) and the second inductive switch (5).

5. The inductive proximity switch according to claim 1, characterized in that: A mounting seat (8) is provided at the bottom of the mounting rod (6), and a mounting bolt is provided inside the mounting seat (8).

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