Spraying disc swing detection device

Abstract

The utility model discloses a spraying disc swing detection device which is used for detecting a spraying disc, and the spraying disc can do reciprocating motion in the axial direction. The spraying device comprises a base which is separated from a spraying disc; the detection mechanism comprises an upper arm, a lower arm and a detection sensor, the upper arm and the lower arm extend in the radial direction, and one end of the upper arm and one end of the lower arm are fixedly arranged on the side, facing the spraying disc, of the base; the upper arm and the lower arm are each fixedly provided with a detection sensor, and the head directions of the two detection sensors correspond to each other. The side plate is fixedly arranged on one side of the spraying disc, and the side plate comprises a detection sensing piece extending in the radial direction, so that the detection sensing piece can move between the two detection sensors in the axial direction in the swinging process of the spraying disc. According to the spraying disc swing detection device, the swing of the spraying disc can be detected in a strong corrosion environment, so that the production precision is improved.

Description

Technical Field

[0001] The utility model relates to a spray plate swing detection device, belonging to the technical field of PCB manufacturing. Background Art

[0002] The description in this section merely provides background information related to the disclosure of the present utility model and does not constitute prior art.

[0003] In the field of PCB manufacturing technology, when etching and developing the PCB to be processed, the spray plate needs to swing to ensure the uniform distribution and coverage of the liquid, thereby improving the quality and efficiency of the chip. If the swing of the spray plate fails, it may cause uneven etching and development, and cause defects and damage to the PCB.

[0004] With the continuous upgrading of PCB industry technology, PCB boards are gradually developing towards precision, so it is increasingly difficult to accept the quality defects of finished products caused by swing failures. At the same time, since the process environment of etching and developing is mainly a highly corrosive acid and alkali solution environment, it is difficult for traditional mechanical detection devices to be used in it.

[0005] Currently, there is no spray disc swing detection device that can solve the above problems. Utility Model Content

[0006] The utility model aims to provide a spray disc swing detection device which can be used to detect the spray disc swing in a strong corrosive environment to improve production accuracy.

[0007] In order to achieve the above-mentioned purpose, the utility model discloses the following spray disc swing detection device, which is used to detect the spray disc, and the spray disc can reciprocate along the axial direction, including:

[0008] A base, the base being separately arranged from the spray plate;

[0009] The detection mechanism comprises an upper arm, a lower arm and a detection sensor, wherein the upper arm and the lower arm extend radially, and one end of the upper arm and the lower arm are respectively fixedly arranged on a side of the base facing the spray disc; one detection sensor is fixed on each of the upper arm and the lower arm, and the heads of the two detection sensors face correspondingly;

[0010] A side plate is fixedly arranged on one side of the spray disc, and the side plate includes a detection sensing piece extending in a radial direction, so that during the swinging process of the spray disc, the detection sensing piece can move along the axial direction between the two detection sensors.

[0011] Furthermore, the base, the detection mechanism, and the brackets and screws in the side panels are made of corrosion-resistant materials.

[0012] Furthermore, the base, the detection mechanism, and the brackets and screws in the side panels are made of titanium and / or polyethylene.

[0013] Furthermore, the upper arm and the lower arm are made of polyethylene material with a size of 15mm*30mm*80mm.

[0014] Furthermore, the detection sensor sheet is made of titanium material with a size of 75 mm*3 mm extending along the radial direction.

[0015] Furthermore, the detection sensor is configured as a Teflon fully-covered optical fiber sensor.

[0016] Furthermore, the two detection sensors are arranged perpendicular to the axial direction.

[0017] Furthermore, the side plate is arranged in an inverted L shape, and the detection sensor sheet is arranged on one side arm of the inverted L shape.

[0018] By means of the above technical solution, the beneficial effects of the utility model are as follows:

[0019] 1. The base of the spray disc swing detection device of the utility model is separated from the spray disc. If the operation is normal, the side plate can be regularly and continuously passed through the detection mechanism along the axial direction during the reciprocating swing of the spray disc, so that the detection sensor in the detection mechanism can obtain the photoelectric signal of the stable operation of the spray disc; similarly, if the movement of the spray disc is abnormal, the detection sensor in the detection mechanism can obtain the irregular photoelectric signal, so that the staff can adjust the spray disc in time. Therefore, the device can ensure real-time monitoring of the swing of the spray disc, and indirectly improve the output yield rate.

[0020] 2. The structure of the spray disc swing detection device of the present invention adopts corrosion-resistant materials. At the same time, through the design of corresponding dimensions, it can obtain better operation effect in acid and alkali environment. Compared with traditional mechanical detection, the present invention has higher operation stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 It is an axonometric diagram of a spray disc swing detection device provided in an embodiment of this specification;

[0023] In the figure: 001, spray disc; 1, base; 2, detection mechanism; 21, upper arm; 22, lower arm; 23, detection sensor; 3, side panel; 31, detection sensor sheet. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the drawings in the embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this specification, not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this specification.

[0025] In the description of the present utility model, it should be noted that the terms "upper", "middle", "lower", "inner", "outer", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. The terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The following describes the implementation method of the present utility model based on its overall structure.

[0026] See also Figure 1 , a spray disc swing detection device of the present embodiment is used to detect the spray disc 001, and the spray disc 001 can reciprocate along the axial direction, including:

[0027] Base 1, base 1 is separately arranged from spray plate 001;

[0028] The detection mechanism 2 includes an upper arm 21, a lower arm 22 and a detection sensor 23. The upper arm 21 and the lower arm 22 extend radially, and one end of the upper arm 21 and the lower arm 22 are respectively fixedly arranged on the side of the base 1 facing the spray disc 001; a detection sensor 23 is fixed on each of the upper arm 21 and the lower arm 22, and the heads of the two detection sensors 23 face correspondingly;

[0029] The side plate 3 is fixedly arranged on one side of the spray disc 001 , and includes a detection sensing piece 31 extending in the radial direction, so that the detection sensing piece 31 can move axially between the two detection sensors 23 during the swinging process of the spray disc 001 .

[0030] Through the above structure, when in use, since the spray disc 001 is separated from the base 1, the detection mechanism 2 fixed on the base 1 can also remain fixed relative to the reciprocating spray disc 001, that is, the detection sensor 23 on the detection mechanism 2 can detect the reciprocating motion of the detection sensor sheet 31 fixed on the side plate 3 on one side of the spray disc 001. Since the detection sensor sheet 31 is indirectly fixedly connected to the spray disc 001, the detection sensor 23 realizes uninterrupted detection of the detection sensor sheet 31. In the above process, if there is no abnormality in the movement of the spray disc 001, the detection sensor 23 can detect a regular photoelectric signal; if there is an abnormality in the movement of the spray disc 001, the detection sensor 23 can detect an irregular photoelectric signal. At this time, the staff can adjust the spray disc 001 in time to avoid the problem of output yield rate caused by the abnormal movement of the spray disc 001.

[0031] Furthermore, the spray disc 001 is located in the middle position of the processing box, the base 1 is fixed on one side of the processing box, and is in the same acid-base environment as the spray disc 001, and the fixed positions of the spray disc 001 and the base 1 are completely independent, that is, when the spray disc 001 reciprocates along the axial direction, the base 1 can remain completely stable, so that the detection mechanism 2 on the base 1 can continue to maintain a stable state, and only the spray disc 001 and the side plate 3 on one side of the spray disc 001 can move relative to the detection mechanism 2.

[0032] Specifically, Figure 1 As shown, the detection sensing sheet 31 on the side plate 3 can completely cover the positions of the upper and lower detection sensors 23, so that when the detection sensing sheet 31 reciprocates and passes through the position of the detection sensor 23, the detection sensing sheet 31 can completely block the upper and lower detection sensors 23, so that the detection sensor 23 can obtain a clear photoelectric signal of the object passing. At the same time, the detection sensor 23 is electrically connected to the external driving mechanism. When the detection sensor 23 detects the photoelectric signal of the abnormal swing of the spray disc 001, the external driving mechanism stops running, so that the spray disc 001 stops swinging immediately. At this time, the staff can intervene and adjust the swing drive device of the spray disc 001 or the spray disc 001 itself, so that the swing of the spray disc 001 returns to normal. Therefore, with the help of the detection device of this device, it is possible to effectively avoid unnecessary repeated erroneous processing when the spray disc 001 moves abnormally, so as to reduce the loss of the assembly line.

[0033] Furthermore, the brackets and screws in the base 1, the detection mechanism 2 and the side plate 3 are set to corrosion-resistant materials. Specifically, the brackets and screws in the base 1, the detection mechanism 2 and the side plate 3 are set to titanium and / or polyethylene. Titanium is a metal with a strong tendency to passivate, which can quickly form a stable oxidative protective film in the air and in an oxidizing or neutral aqueous solution, so that it has good corrosion resistance and is particularly suitable for the processing environment in which the device is located; polyethylene is a commonly used plastic material with excellent chemical stability. It is resistant to corrosion by various chemical substances such as hydrochloric acid, hydrofluoric acid, phosphoric acid, formic acid, amines, sodium hydroxide, potassium hydroxide, etc. at room temperature, and is also particularly suitable for the processing environment in which the device is located. At the same time, the structural strength of titanium is very high, and the tensile strength can reach 500-600MPa, which is more than twice that of ordinary steel, while the structural strength of polyethylene is average, but it has good flexibility and low density, and has good insulation, and can be used for the fixed protection of the detection sensor 23.

[0034] The base 1 and the side plate 3 in this embodiment are both made of titanium with a thickness of 3mm. Specifically, the upper arm 21 and the lower arm 22 fixed on the base 1 are made of polyethylene with a size of 15mm*30mm*80mm, and the detection sensor sheet 31 is made of titanium with a size of 75mm*3mm extending radially, so that the detection sensor sheet 31 can cover most of the upper arm 21 and the lower arm 22 area, which is convenient for matching detection sensors 23 of various sizes, saving overall materials, and further reducing the production and maintenance costs of the device.

[0035] Furthermore, the detection sensor 23 is configured as a Teflon-wrapped optical fiber sensor. Specifically, the optical fiber at one end of the detection sensor 23 is coated with Teflon material. The model of the detection sensor 23 is PS-201C, which has excellent chemical resistance and high temperature resistance and can work stably in an acidic and alkaline environment. Even if the optical fiber line is accidentally damaged or broken, it will not affect the power supply line, thus avoiding a short circuit in the liquid medicine environment.

[0036] Furthermore, the two detection sensors 23 are arranged perpendicular to the axial direction. Specifically, the arrangement perpendicular to the axial direction can make the distance between the two detection sensors 23 the shortest, so that the detection efficiency of the detection sensors 23 is improved. At the same time, the vertically placed detection sensors 23 also allow the residual liquid medicine to drop faster.

[0037] Further, the side plate 3 is set to an inverted L shape, and the detection sensing sheet 31 is set on one side arm of the inverted L. Specifically, the detection sensing sheet 31 on the other side of the inverted L shape is set on one side arm of the inverted L shape, and the other side arm of the inverted L shape is completely attached to the spray disc 001, so that the detection sensing sheet 31 can obtain better stability during the movement of the spray disc 001.

[0038] In the above embodiment, the spray disc 001 is separated from the base 1, so that the detection mechanism 2 on the base 1 can effectively detect the active spray disc 001 in real time, avoiding the influence of the yield rate on the irregular swing of the spray disc 001. At the same time, the base 1, the detection mechanism 2 and the side plate 3 of the main structure of this embodiment are made of corrosion-resistant titanium and / or polyethylene materials, avoiding the corrosion of the device by the medicine in the acid and alkali environment, and reducing the maintenance cost of this product.

[0039] The present invention uses specific embodiments to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A spray disc swing detection device, used for detecting a spray disc, wherein the spray disc can reciprocate along the axial direction; characterized in that: include: A base, the base being separately arranged from the spray plate; The detection mechanism comprises an upper arm, a lower arm and a detection sensor, wherein the upper arm and the lower arm extend radially, and one end of the upper arm and the lower arm are respectively fixedly arranged on a side of the base facing the spray disc; one detection sensor is fixed on each of the upper arm and the lower arm, and the heads of the two detection sensors face correspondingly; A side plate is fixedly arranged on one side of the spray disc, and the side plate includes a detection sensing piece extending in a radial direction, so that during the swinging process of the spray disc, the detection sensing piece can move along the axial direction between the two detection sensors.

2. The spray disc swing detection device according to claim 1, characterized in that: The base, the detection mechanism, and the brackets and screws in the side panels are made of corrosion-resistant materials.

3. The spray disc swing detection device according to claim 1, characterized in that: The upper arm and the lower arm are made of polyethylene with a size of 15mm*30mm*80mm.

4. The spray disc swing detection device according to claim 1, characterized in that: The detection sensor sheet is configured to be made of titanium material with a size of 75 mm*3 mm extending along the radial direction.

5. The spray disc swing detection device according to claim 1, characterized in that: The detection sensor is configured as a Teflon fully-enclosed optical fiber sensor.

6. The spray disc swing detection device according to claim 1, characterized in that: The two detection sensors are arranged perpendicular to the axial direction.

7. The spray disc swing detection device according to claim 1, characterized in that: The side plate is arranged in an inverted L shape, and the detection sensing sheet is arranged on one side arm of the inverted L shape.

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