Dustproof photoelectric switch applied to automatic production line

Abstract

The utility model discloses a dustproof photoelectric switch applied to an automatic production line, which comprises a sliding block clamped in a positioning plate and used for moving, a roller used for moving is inserted in the sliding block, and the lower end of the sliding block is connected with a protective shell used for protection through a bolt. The inner bottom wall of the protective shell is fixedly connected with a fan used for accelerating air flowing, the side face of the protective shell is provided with an air outlet used for heat dissipation, and the inner wall of the air outlet is fixedly connected with a filter screen used for filtering. According to the dustproof photoelectric switch applied to the automatic production line, through the arrangement of the protective shell, the fan and the filter screen, when a worker installs the photoelectric switch in an environment with a large amount of dust, air flow in the body can be increased, dust in the body can be sent out, and meanwhile the dustproof photoelectric switch is convenient to clean by means of the matched arrangement of the filter screen and the sealing cover. And therefore, external dust can be isolated, and the problems of false detection and missing detection of the photoelectric switch caused by the fact that the external dust enters the interior of the body can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a dustproof photoelectric switch used in an automated production line. Background Art

[0002] Photoelectric switch is the abbreviation of photoelectric proximity switch. It uses the obstruction or reflection of the light beam by the detected object, and the circuit is connected by the synchronization circuit to detect the presence or absence of the object. The object is not limited to metal. All objects that can reflect light or block light can be detected. The photoelectric switch converts the input current into a light signal on the transmitter, and the receiver detects the target object according to the intensity or presence of the received light. The common photoelectric switch smoke alarm in the security system is often used in industry to count the number of movements of the robot arm. The photoelectric switch is a type of sensor that converts the intensity change of light between the transmitting end and the receiving end into a change in current to achieve the purpose of detection. Since the output circuit and the input circuit of the photoelectric switch are electrically isolated, that is, electrically insulated, it can be used in many occasions. The new generation of photoelectric switch devices manufactured using integrated circuit technology and SMT surface mounting technology have intelligent functions such as delay, widening, external synchronization, anti-mutual interference, high reliability, stable working area and self-diagnosis.

[0003] Commonly used infrared photoelectric switches use the principle of reflection of near-infrared light beams by objects. The synchronous circuit senses the intensity of the reflected light and detects the presence of an object to achieve its function. The photoelectric sensor first sends out an infrared light beam to reach or pass through an object or a mirror to reflect the infrared light beam. The photoelectric sensor receives the reflected light beam and determines the presence of an object based on the intensity of the light beam. There are many types of infrared photoelectric switches. Generally speaking, there are several main types, such as mirror reflection photoelectric switches, diffuse reflection types, slot types, through-beam types, and fiber optic types.

[0004] As a detection unit, photoelectric switches are also widely used in industrial automation, medical, finance, home appliances and other fields. Traditional photoelectric switches are composed of an infrared transmitting tube, an infrared receiving tube, a control circuit board, a plastic shell and a plastic cover. The plastic shell has a light-transmitting groove. The infrared light emitted by the infrared transmitting tube passes through the light-transmitting groove of the plastic shell and is received by the infrared receiving tube. After receiving the infrared light, the infrared receiving tube converts the light into an electrical signal.

[0005] However, the existing devices have the following problems:

[0006] 1. When the existing photoelectric switch is used in an environment with a lot of dust, it is easy for the inside of the photoelectric switch to be filled with dust, causing false detection and missed detection;

[0007] 2. The existing device is installed and fixed at the upper end of the device by the staff. When it is used in different positions, it is not convenient to adjust it, and frequent disassembly may easily cause damage to the photoelectric switch. Utility Model Content

[0008] 1. Technical issues to be solved

[0009] In view of the shortcomings of the prior art, the utility model provides a dust-proof photoelectric switch for use in automated production lines, which has the advantages of easy adjustment, fast heat dissipation, and the ability to more conveniently clean the dust on its surface, thereby solving the problems of being unable to adjust quickly and being inconvenient to clean the dust inside it.

[0010] (II) Technical solution

[0011] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dust-proof photoelectric switch used in an automated production line, comprising a slider clamped inside a positioning plate for movement, a roller for movement being inserted inside the slider, the lower end of the slider being connected to a protective shell for protection by bolts, a fan for accelerating air flow being fixedly connected to the inner bottom wall of the protective shell, an air outlet for heat dissipation being provided on the side of the protective shell, a filter screen being fixedly connected to the inner wall of the air outlet, a body for control being clamped on the inner wall of the protective shell, and a sealing cover for protection being connected to the upper end of the body by bolts.

[0012] Preferably, a camera for detection is fixedly connected to the side of the main body, and a cable for transmission is fixedly connected to the side of the main body.

[0013] Preferably, a display screen for convenient observation is fixedly connected to the upper end of the body, and a card hole for connection is provided at the upper end of the body.

[0014] Preferably, a rotating shaft for limiting position is inserted into the side surface of the roller, and a cover for limiting position is threadedly connected to one end of the rotating shaft.

[0015] Preferably, a groove for storage is provided at an upper end of a side surface of the sliding block, and a limit block for positioning is provided at a side surface of the sliding block.

[0016] Preferably, a rubber pad for increasing friction is fixedly connected to the upper end of the positioning plate, and a stabilizing plate for limiting position is fixedly connected to the side of the positioning plate.

[0017] Preferably, a connection hole for positioning is provided at the upper end of the stabilizing plate, and a threaded column for fixing is inserted at the lower end of the stabilizing plate.

[0018] Preferably, a connecting plate for fixing is fixedly connected to the side of the protective shell, and a positioning pin for limiting is fixedly connected to the lower end of the connecting plate.

[0019] Preferably, a sliding groove for positioning is provided on the side of the positioning plate, and a partition for positioning is fixedly connected to the inner wall of the positioning plate.

[0020] (III) Beneficial effects

[0021] Compared with the prior art, the utility model provides a dust-proof photoelectric switch applied to an automated production line, which has the following beneficial effects:

[0022] 1. The dust-proof photoelectric switch used in the automated production line can increase the air flow inside the body and send the dust inside out of the body through the coordinated arrangement of the protective shell, fan and filter when the worker installs the photoelectric switch in an environment with a lot of dust. At the same time, with the help of the coordinated arrangement of the filter and the sealing cover, the dust outside can be isolated to prevent the dust outside from entering the inside of the body, causing the photoelectric switch to have problems of false detection and missed detection.

[0023] 2. The dust-proof photoelectric switch used in the automated production line is arranged in coordination with the positioning plate, the body, the slider and the roller. After the worker installs it, the body can be adjusted according to the needs of use to make it reach a suitable position, thereby avoiding the problem that it is inconvenient to adjust it and the photoelectric switch is easily damaged due to frequent disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The utility model proposes a schematic diagram of a dust-proof photoelectric switch structure used in an automated production line;

[0025] Figure 2 The utility model proposes a schematic diagram of the explosion structure of a dust-proof photoelectric switch used in an automated production line;

[0026] Figure 3 The utility model proposes a schematic diagram of a dustproof photoelectric switch structure protection shell used in an automated production line;

[0027] Figure 4 The utility model proposes a schematic diagram of the structure of a dustproof photoelectric switch slider used in an automated production line;

[0028] Figure 5 The utility model proposes a schematic diagram of a dustproof photoelectric switch roller structure used in an automated production line;

[0029] Figure 6The utility model provides a schematic diagram of the structure of a dustproof photoelectric switch body used in an automated production line.

[0030] In the figure: 1. positioning plate; 2. slider; 3. roller; 4. protective shell; 5. fan; 6. air outlet; 7. filter; 8. body; 9. sealing cover; 10. camera; 11. cable; 12. display screen; 13. card hole; 14. shaft; 15. cover; 16. groove; 17. limit block; 18. rubber pad; 19. stabilizing plate; 20. connecting hole; 21. threaded column; 22. connecting plate; 23. positioning pin; 24. slide groove; 25. partition. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] See also Figure 1-6 , including a slider 2 clamped in the positioning plate 1 for movement, a groove 16 for storage is provided on the upper end of the side of the slider 2, a limiting block 17 for positioning is provided on the side of the slider 2, a slide groove 24 for positioning is provided on the side of the positioning plate 1, and a partition 25 for positioning is fixedly connected to the inner wall of the positioning plate 1, a roller 3 for movement is inserted into the interior of the slider 2, a rotating shaft 14 for limiting is inserted on the side of the roller 3, and a cover 15 for limiting is threadedly connected to one end of the rotating shaft 14, and the roller 3 can be limited by the matching arrangement of the groove 16 and the limiting block 17, so that it can be placed more stably and firmly, and the roller 3 can be limited by the matching arrangement of the slide groove 24 and the partition 25, so that it can slide more smoothly, and at the same time, the roller 3 can be more stable by the matching arrangement of the rotating shaft 14 and the cover 15;

[0033] See also Figure 1-4, the lower end of the slider 2 is connected with a protective shell 4 for protection by bolts, the side of the protective shell 4 is fixedly connected with a connecting plate 22 for fixing, the lower end of the connecting plate 22 is fixedly connected with a positioning pin 23 for limiting, the inner bottom wall of the protective shell 4 is fixedly connected with a fan 5 for accelerating air flow, the upper end of the positioning plate 1 is fixedly connected with a rubber pad 18 for increasing friction, the side of the positioning plate 1 is fixedly connected with a stabilizing plate 19 for limiting, the upper end of the stabilizing plate 19 is provided with a connecting hole 20 for positioning, and the lower end of the stabilizing plate 19 is plugged with a threaded column 21 for fixing. With the help of the matching arrangement of the connecting plate 22 and the positioning pin 23, the protective shell 4 can be more conveniently fixed to the lower end of the slider 2, making it more firm and stable. With the help of the setting of the rubber pad 18, the friction between the positioning plate 1 and the equipment can be increased, making it more firmly placed. At the same time, with the help of the matching arrangement of the stabilizing plate 19 and the threaded column 21, the positioning plate 1 can be more firmly installed at the lower end of the equipment;

[0034] See also Figure 2-6 An air outlet 6 for heat dissipation is provided on the side of the protective shell 4, a filter screen 7 for filtering is fixedly connected to the inner wall of the air outlet 6, a main body 8 for control is clamped on the inner wall of the protective shell 4, a camera 10 for detection is fixedly connected to the side of the main body 8, a cable 11 for transmission is fixedly connected to the side of the main body 8, a display screen 12 for convenient observation is fixedly connected to the upper end of the main body 8, a card hole 13 for connection is provided at the upper end of the main body 8, and a sealing cover 9 for protection is connected to the upper end of the main body 8 by bolts. With the help of the coordinated setting of the camera 10, it can be detected more conveniently, and through the setting of the cable 11, it can be connected to external equipment more conveniently. At the same time, with the setting of the display screen 12, the parameters on the upper end of the main body 8 can be displayed more conveniently.

[0035] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0036] To sum up, when using the dustproof photoelectric switch used in the automated production line, the staff clamps its body 8 into the inside of the protective shell 4, and seals its protective shell 4 with the help of the sealing cover 9, fixes its protective shell 4 to the lower end of the slider 2 through the connecting plate 22 and the positioning pin 23, and then clamps its slider 2 into the inside of the positioning plate 1, and adjusts the slider 2 inside the positioning plate 1 to make its body 8 reach a suitable position.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise one" do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0038] 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 dustproof photoelectric switch used in an automated production line, comprising a slider (2) clamped inside a positioning plate (1) for movement, characterized in that: A roller (3) for movement is inserted inside the slider (2); a protective shell (4) for protection is connected to the lower end of the slider (2) by bolts; a fan (5) for accelerating air flow is fixedly connected to the inner bottom wall of the protective shell (4); an air outlet (6) for heat dissipation is opened on the side of the protective shell (4); a filter screen (7) for filtering is fixedly connected to the inner wall of the air outlet (6); a body (8) for control is clamped on the inner wall of the protective shell (4); and a sealing cover (9) for protection is connected to the upper end of the body (8) by bolts.

2. The dust-proof photoelectric switch used in an automated production line according to claim 1, characterized in that: A camera (10) for detection is fixedly connected to the side of the body (8), and a cable (11) for transmission is fixedly connected to the side of the body (8).

3. The dust-proof photoelectric switch used in an automated production line according to claim 1, characterized in that: A display screen (12) for convenient observation is fixedly connected to the upper end of the body (8), and a card hole (13) for connection is provided at the upper end of the body (8).

4. The dust-proof photoelectric switch used in an automated production line according to claim 1, characterized in that: A rotating shaft (14) for limiting position is inserted into the side surface of the roller (3), and a cover (15) for limiting position is threadedly connected to one end of the rotating shaft (14).

5. The dust-proof photoelectric switch used in an automated production line according to claim 1, characterized in that: A groove (16) for storage is provided at the upper end of the side surface of the slider (2), and a limit block (17) for positioning is provided at the side surface of the slider (2).

6. The dust-proof photoelectric switch used in an automated production line according to claim 1, characterized in that: A rubber pad (18) for increasing friction is fixedly connected to the upper end of the positioning plate (1), and a stabilizing plate (19) for limiting position is fixedly connected to the side of the positioning plate (1).

7. The dust-proof photoelectric switch used in an automated production line according to claim 6, characterized in that: A connection hole (20) for positioning is provided at the upper end of the stabilizing plate (19), and a threaded column (21) for fixing is inserted at the lower end of the stabilizing plate (19).

8. The dust-proof photoelectric switch used in an automated production line according to claim 1, characterized in that: A connecting plate (22) for fixing is fixedly connected to the side of the protective shell (4), and a positioning pin (23) for limiting is fixedly connected to the lower end of the connecting plate (22).

9. The dust-proof photoelectric switch used in an automated production line according to claim 1, characterized in that: A sliding groove (24) for positioning is provided on the side of the positioning plate (1), and a partition plate (25) for positioning is fixedly connected to the inner wall of the positioning plate (1).

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