CN214407264U

CN214407264U - Wet film thickness measuring instrument

Info

Publication number: CN214407264U
Application number: CN202023287964.9U
Authority: CN
Inventors: 邓亚峰; 陈黎阳; 彭文才
Original assignee: Shenzhen Fastprint Circuit Tech Co Ltd; Guangzhou Fastprint Circuit Technology Co Ltd; Yixing Silicon Valley Electronic Technology Co Ltd
Current assignee: Shenzhen Fastprint Circuit Tech Co Ltd; Guangzhou Fastprint Circuit Technology Co Ltd; Yixing Silicon Valley Electronic Technology Co Ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-10-15
Anticipated expiration: 2030-12-29

Abstract

The utility model relates to a wet film thickness measuring instrument in measurement process, at first carries out the calibration of zeroing to wet film thickness measuring instrument for one serves the scale mark of survey piece can be read to the camera. At the moment, the camera reads the signal and sends the signal to the processor for the first time; secondly, placing a wet film thickness testing instrument on a product to be tested, so that one end of the shell pierces through the wet film and abuts against the substrate; then, the detecting piece is driven to move in the shell, so that one end of the detecting piece pierces through the wet film and is abutted against the substrate; after the contact, the camera reads the scale marks of the wet film contacted with the detection piece and sends an electric signal to the processor for the second time; after the processor receives the electric signals for the first time, the electric signals of the front and the back times are compared, the scale data of the two times are subjected to difference, and the obtained data difference value is sent to the display screen to be displayed. After the operator reads the data on the display screen, one end of the detection piece is cleaned so as to be used again in the following process.

Description

Wet film thickness measuring instrument

Technical Field

The utility model relates to a thickness measurement equipment technical field especially relates to wet film thickness measuring instrument.

Background

A layer of wet film such as coating, ink, paint film and the like is usually printed or sprayed on the surface of fine high-value products such as processing materials, circuit boards, special metals and the like so as to play roles of moisture prevention, protection, insulation, attractiveness and the like. The accuracy of the wet film measurement is important because the thickness of the wet film, such as ink, coating, etc., is often measured during processing to determine whether the product meets the minimum thickness requirements required by specifications. If the measurement is inaccurate, the thickness of the coating layer is insufficient or exceeds the standard, which is a serious problem for the product quality and the cost.

The traditional wet film thickness testing tool mostly depends on manual measurement and reading. However, the visual reading error is large and the accuracy is not enough, so that the read data is easy to generate serious deviation. Meanwhile, the measurement conditions are harsh, and the horizontal placement of a test tool must be ensured in the measurement process, so that the measurement efficiency is low.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide a wet film thickness measuring instrument capable of accurately and efficiently reading the thickness of a wet film and improving the quality of a product.

A wet film thickness gauge, comprising: the device comprises a shell, a first fixing piece and a second fixing piece, wherein one end of the shell is used for penetrating a wet film on a product to be detected and abutting against a substrate of the product to be detected; the detection piece is arranged on the shell and can move back and forth in the shell, one end of the detection piece is used for piercing the wet film and abutting against the substrate when the detection piece moves, and the detection piece is provided with scale marks; read the subassembly, read the subassembly and include camera, treater and display screen, the camera with the display screen all with treater electric connection, the camera is installed on the casing, the camera is used for reading the scale mark on the detection piece, and to the treater sends the signal of telecommunication, the treater be used for with the signal of telecommunication of camera twice sending is compared, and to the poor information of display screen output data.

In the measurement process, the wet film thickness measuring instrument is firstly subjected to zero calibration, so that the camera can read the scale mark on one end of the detection piece. At the moment, the camera reads the signal and sends the signal to the processor for the first time; secondly, placing a wet film thickness testing instrument on a product to be tested, so that one end of the shell pierces through the wet film and abuts against the substrate; then, the detecting piece is driven to move in the shell, so that one end of the detecting piece pierces through the wet film and is abutted against the substrate; after the contact, the camera reads the scale marks of the wet film contacted with the detection piece and sends an electric signal to the processor for the second time; after the processor receives the electric signals for the first time, the electric signals of the front and the back times are compared, the scale data of the two times are subjected to difference, and the obtained data difference value is sent to the display screen to be displayed. After the operator reads the data on the display screen, one end of the detection piece is cleaned so as to be used again in the following process. This wet film thickness measuring instrument utilizes the camera around the automatic scale mark that reads on the detection piece, replaces traditional reading of visualing, avoids producing the deviation because of the inaccurate data that leads to of reading, effectively improves the measurement accuracy of wet film, is favorable to improving the quality of product. Meanwhile, in the measurement process of the wet film thickness measuring instrument, the shell and the detecting piece are required to be abutted against the substrate in sequence, so that the measurement efficiency of the wet film thickness is greatly improved.

In one embodiment, the shooting end of the camera is arranged towards the scale marks on the detection piece, and the signal sent by the camera is used for being vertically arranged with the detection piece.

In one embodiment, the probe is provided with a first puncturing part at one end in the shell, and the first puncturing part is used for puncturing the wet film and abutting against the substrate.

In one embodiment, the first piercing portion has a cross-section S₁The size of the first puncture part is gradually reduced from one end of the first puncture part close to the probe to one end of the first puncture part far away from the probe.

In one embodiment, a pressing part is arranged at one end of the detecting piece extending out of the shell and used for pushing the detecting piece to move back and forth in the shell.

In one embodiment, the wet film thickness measuring instrument further includes an elastic member disposed between the pressing portion and the housing.

In one embodiment, the elastic member is a spring, the spring is sleeved on the detecting member, one end of the spring is connected to the pressing portion, and the other end of the spring is connected to the housing.

In one embodiment, the wet film thickness measuring instrument further comprises a protective sleeve, the protective sleeve is sleeved outside the detecting member, one end of the protective sleeve is connected to the pressing part, and the other end of the protective sleeve is connected to the shell.

In one embodiment, the housing has a second piercing portion at one end for piercing the wet film against the substrate.

In one embodiment, the cross-section S of the second piercing section₂The size of the second puncture part is gradually reduced from one end of the second puncture part close to the shell to one end of the second puncture part far away from the shell.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic view of a wet film thickness measuring instrument according to an embodiment;

FIG. 2 is a schematic diagram showing the structure of a wet film thickness measuring instrument in a pressed state in one embodiment.

100. A wet film thickness measuring instrument; 110. a housing; 111. a top plate; 112. surrounding edges; 113. a second puncture section; 120. a probe member; 121. a first puncture section; 122. scale lines; 130. a reading component; 131. a camera; 132. a display screen; 133. a processor; 140. a pressing part; 150. a protective sleeve; 160. an elastic member; 200. a product to be tested; 210. a substrate; 220. and (5) wet film forming.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In one embodiment, referring to fig. 1 and 2, a wet film thickness measuring instrument 100, the wet film thickness measuring instrument 100 includes: a housing 110, a probe 120, and a reading assembly 130. One end of the housing 110 is used to pierce the wet film 220 on the product 200 to be tested and abut against the substrate 210 of the product 200 to be tested. The detecting member 120 is disposed on the housing 110, and the detecting member 120 can move back and forth in the housing 110, when the detecting member 120 moves, one end of the detecting member 120 is used to pierce the wet film 220 and abut against the substrate 210, and the detecting member 120 is provided with a scale mark 122. The reading assembly 130 includes a camera 131, a processor 133 and a display screen 132, the camera 131 and the display screen 132 are both electrically connected to the processor 133, the camera 131 is mounted on the housing 110, the camera 131 is used for reading the scale mark 122 on the detecting member 120 and sending an electrical signal to the processor 133, and the processor 133 is used for comparing the electrical signals sent by the camera 131 twice and outputting data difference information to the display screen 132.

In the above-mentioned wet film thickness measuring instrument 100, during the measurement, the zero calibration of the wet film thickness measuring instrument 100 is first performed so that the camera 131 can read the graduation marks 122 on one end of the probe member 120. At this point, the camera 131 reads and sends an electrical signal to the processor 133 for the first time; secondly, a thickness testing instrument of the wet film 220 is placed on the product 200 to be tested, so that one end of the shell 110 pierces through the wet film 220 and abuts against the substrate 210; then, the probe 120 is driven to move in the housing 110, such that one end of the probe 120 pierces the wet film 220 and abuts against the substrate 210; after contact, the camera 131 reads the scale marks 122 of the wet film 220 contacting the detecting member 120 and sends an electric signal to the processor 133 for the second time; after the processor 133 receives the electrical signal for the first time, the electrical signal obtained twice is compared, the scale data obtained twice is subtracted, and the obtained data difference value is sent to the display screen 132 for display. After the operator reads the data on the display screen 132, the operator cleans one end of the probe 120 for subsequent reuse. The wet film thickness measuring instrument 100 utilizes the camera 131 to automatically read the scale marks 122 on the detecting piece 120 from front to back, replaces the traditional visual reading, avoids the data deviation caused by inaccurate reading, effectively improves the measuring precision of the wet film 220, and is favorable for improving the product quality. Meanwhile, in the measurement process of the wet film thickness measuring instrument 100, only the shell 110 and the detecting piece 120 are required to be abutted against the substrate 210 in sequence, so that the measurement efficiency of the thickness of the wet film 220 is greatly improved.

Before the probe 120 is moved, the camera 131 reads an end of the probe 120 to obtain the graduation marks 122 on the end of the probe 120. Wherein, the graduation mark 122 at one end of the detecting member 120 is generally a graduation mark 122 of "0". After the probe member 120 is moved, one end of the probe member 120 pierces the wet film 220 and abuts against the substrate 210. Since one end of the detecting member 120 is hidden in the wet film 220, the camera 131 can read only the graduation mark 122 of the wet film 220 contacting the detecting member 120 on the detecting member 120. Moving the scale mark 122 read twice before and after, and sending an electric signal to the processor 133; after acquiring the signals, the processor 133 compares the electrical signals of the previous and subsequent times, makes a difference between the scale marks 122 of the previous and subsequent times, and sends the data after the difference to the display screen 132, so that the operator can read the thickness of the wet film 220.

In addition, the processor 133 of the embodiment compares the two electrical signals of the camera 131 before and after to obtain the thickness difference of the wet film 220, and aims to avoid the increase of the scale mark 122 contacting the wet film 220 and the detecting member 120 due to the abrasion of one end of the detecting member 120, so that the abrasion error is eliminated by a difference making method, the thickness measurement precision of the wet film 220 is greatly improved, and the quality of the product is ensured.

It should be noted that the display 132 and the processor 133 of the present embodiment may be mounted on the housing 110, or may be provided separately from the housing 110. When the display 132 and the processor 133 are both disposed separately from the housing 110, the camera 131 is electrically connected to the processor 133 through a long wire. Meanwhile, the processor 133 of the present embodiment may be a single chip microcomputer, a Programmable Logic Controller (PLC), an Electronic Control Unit (ECU), or the like. The display screen 132 may also be a TF display screen, a TFT display screen, an AMOLED display screen, an IPS display screen, or the like. Further, the camera 131 of the present embodiment is a high-speed camera 131. In addition, the product 200 to be tested includes a substrate 210 and a wet film 220, and the wet film 220 is disposed on a surface of the substrate 210.

Further, the shooting end of the camera 131 is arranged towards the scale mark 122 on the detecting member 120, and the signal sent by the camera 131 is used for being vertically arranged with the detecting member 120, so that the shooting end of the camera 131 is arranged towards the scale mark 122 of the detecting member 120, so that the signal sent by the camera 131 is perpendicular to the detecting member 120, and the camera 131 is ensured to be capable of better reading the scale mark 122 on the detecting member 120. Meanwhile, the method is convenient for operators to return to zero and check better, and improves the measurement precision of the wet film thickness measuring instrument 100.

Of course, in other embodiments, the camera 131 may be disposed in an oblique downward direction and an oblique upward direction in the housing 110.

In one embodiment, the probe 120 is provided with a first piercing portion 121 at an end thereof located within the housing 110. The first piercing part 121 is used for piercing the wet film 220 and abutting against the substrate 210, so that the first piercing part 121 is arranged at one end of the probe 120, so that one end of the probe 120 penetrates through the wet film 220 and acts on the substrate 210, the operability of the wet film thickness measuring instrument 100 is better, and the measurement efficiency of the thickness of the wet film 220 is improved.

Alternatively, the first puncturing part 121 may be a thin tip type, a spherical type, or the like.

Alternatively, the first puncturing part 121 may be connected to the probe 120 by a bolt, a snap, a pin, a welding, a riveting, or an integral molding. The integral forming mode can be die casting, extruding, cutting and other forming processes.

Further, referring to fig. 1, a cross section S of the first puncturing part 121₁The diameter decreases from the end of the first piercing member 121 that is closer to the probe 120 to the end of the first piercing member 121 that is further from the probe 120. Therefore, the first puncturing part 121 of the present embodiment is thin and pointed, which effectively reduces the contact area with the wet film 220, thereby improving the testing accuracy of the wet film 220 and reducing the oil accumulation during the testing process.

It should be noted that the cross section of the first puncture part 121 of the present embodiment is understood as follows: the first piercing section 121 is taken in a plane perpendicular to the axis of the probe 120, and the contour line region taken in this plane is a cross section of the first piercing section 121. In order to facilitate understanding of the cross section of the first puncturing part 121, the cross section of the first puncturing part 121 is S in fig. 1 by taking fig. 1 as an example₁The area indicated.

In one embodiment, referring to fig. 1, the end of the probe 120 extending out of the housing 110 is provided with a pressing portion 140. The pressing portion 140 is used to push the probe 120 to move back and forth in the housing 110, so that during the test, the pressing portion 140 is pushed to make the probe 120 move back and forth in the housing 110 more easily, and ensure that one end of the probe 120 pierces through the wet film 220 and abuts against the substrate 210.

Optionally, the connection manner between the pressing portion 140 and the detecting member 120 is a bolt connection, a snap connection, a rivet connection, a pin connection, a welding, an integral molding manner, and the like.

Further, referring to fig. 1, the housing 110 is provided with a through hole (not shown). During assembly, one end of the probe 120 is inserted through the through hole such that one end of the probe 120 protrudes into the housing 110. Wherein, the outer diameter of the probe 120 is matched with the aperture of the through hole, so that the probe 120 moves more smoothly in the housing 110. In addition, in order to avoid the probe 120 from automatically falling in the through hole, a rubber sleeve can be arranged in the through hole, and the probe 120 can not automatically fall in the through hole by using frictional resistance; alternatively, a spring is connected between the probe 120 and the housing 110, and the probe 120 is prevented from automatically falling down in the through hole by the elastic force of the spring.

In one embodiment, referring to FIG. 1, the wet film thickness measurement instrument 100 further comprises an elastic member 160. The elastic member 160 is disposed between the pressing portion 140 and the housing 110, such that the detecting member 120 is stably supported on the housing 110 by the elastic member 160. Meanwhile, when the probe member 120 completes the test, the probe member 120 restores the probe member 120 to the initial state by the elastic force of the elastic member 160 for the subsequent use. In order to facilitate the zeroing calibration of the detecting member 120, a nut may be sleeved on the detecting member 120. When the probe member 120 is adjusted to a proper position, the nut may be rotated such that the nut abuts against the inner wall of the housing 110, thereby maintaining the probe member 120 in an adjusted state on the housing 110.

Alternatively, the elastic member 160 is a spring, elastic rubber, or elastic metal sheet, etc.

Specifically, the elastic member 160 is a spring. The spring is sleeved on the detecting member 120, one end of the spring is connected to the pressing portion 140, and the other end of the spring is connected to the housing 110, so that the detecting member 120 is stably supported on the housing 110 by the spring; at the same time, the probe member 120 is also better restored to the initial state by the spring.

In one embodiment, referring to FIG. 1, wet film thickness measurement instrument 100 further comprises a protective sheath 150. The protection sleeve 150 is disposed outside the detecting member 120, one end of the protection sleeve 150 is connected to the pressing portion 140, and the other end of the protection sleeve 150 is connected to the casing 110. Thus, the protection sleeve 150 is sleeved outside the detection member 120, so that the structure on the detection member 120 is completely in the protection of the protection sleeve 150, and the detection member 120 is prevented from being easily damaged due to the fact that the structure on the detection member 120 is directly exposed outside. In order to prevent the protection sleeve 150 from affecting the movement of the detecting member 120 on the casing 110, the protection sleeve 150 may be a flexible sleeve or an elastic sleeve, such as: the protective jacket 150 is a corrugated tube.

Optionally, the connection manner of the protective sleeve 150 on the pressing portion 140 and the housing 110 is bolt connection, adhesion, interference fit, clamping connection, or the like.

In one embodiment, referring to fig. 1, a second piercing portion 113 is disposed at one end of the housing 110. The second piercing part 113 is used for piercing the wet film 220 and abutting against the substrate 210, and thus, the second piercing part 113 is arranged at one end of the shell 110, so that one end of the shell 110 penetrates through the wet film 220 and acts on the substrate 210, the operability of the wet film thickness measuring instrument 100 is better, and the measurement efficiency of the thickness of the wet film 220 is improved.

Alternatively, the second puncture section 113 may be a thin-pointed type, a spherical type, or the like.

Alternatively, the second piercing part 113 may be connected to the housing 110 by a bolt, a snap, a pin, a welding, a riveting, or an integral molding. The integral forming mode can be die casting, extruding, cutting and other forming processes.

Further, referring to fig. 1, a cross section S of the second piercing part 113₂The distance from the end of the second piercing part 113 close to the housing 110 to the end of the second piercing part 113 remote from the housing 110 decreases. It can be seen that the second puncturing part 113 of the present embodiment is effectively taperedThe contact area with the wet film 220 is reduced, so that the test precision of the wet film 220 is improved, and the defects of oil accumulation and the like caused in the test process are reduced.

It should be noted that the cross section of the second puncture part 113 of the present embodiment is understood as follows: the second piercing section 113 is taken in a plane perpendicular to the axis of the housing 110, and the contour line area taken in this plane is the cross section of the second piercing section 113. In order to facilitate understanding of the cross section of the second puncturing part 113, the cross section of the second puncturing part 113 is S in fig. 1 by taking fig. 1 as an example₂The area indicated.

In one embodiment, referring to fig. 1, the housing 110 includes a top plate 111 and a surrounding edge 112 disposed on the top plate 111. The detecting member 120 is movably mounted on the top plate 111, and one end of the surrounding edge 112 is used for piercing the wet film 220 and abutting against the substrate 210.

It should be noted that the shape of the housing 110 is various, and the embodiment is not limited specifically, for example: the shape of the housing 110 may be cylindrical, rectangular parallelepiped, triangular prism, circular truncated cone, or the like.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Claims

1. A wet film thickness measuring instrument, comprising:

the device comprises a shell, a first fixing piece and a second fixing piece, wherein one end of the shell is used for penetrating a wet film on a product to be detected and abutting against a substrate of the product to be detected;

the detection piece is arranged on the shell and can move back and forth in the shell, one end of the detection piece is used for piercing the wet film and abutting against the substrate when the detection piece moves, and the detection piece is provided with scale marks;

read the subassembly, read the subassembly and include camera, treater and display screen, the camera with the display screen all with treater electric connection, the camera is installed on the casing, the camera is used for reading the scale mark on the detection piece, and to the treater sends the signal of telecommunication, the treater be used for with the signal of telecommunication of camera twice sending is compared, and to the poor information of display screen output data.

2. The wet film thickness measuring instrument according to claim 1, wherein the photographing end of the camera is disposed toward the graduation marks on the detecting member, and the signal from the camera is used to be disposed perpendicularly to the detecting member.

3. The wet film thickness measuring instrument according to claim 1, wherein the probe member is provided with a first piercing portion at an end thereof located in the housing, the first piercing portion being adapted to pierce the wet film and abut against the substrate.

4. The wet film thickness measuring instrument according to claim 3, wherein the first piercing portion has a cross section S₁The size of the first puncture part is gradually reduced from one end of the first puncture part close to the probe to one end of the first puncture part far away from the probe.

5. The wet film thickness measuring instrument according to claim 1, wherein a pressing portion for pushing the probe to move back and forth in the housing is provided on an end of the probe protruding out of the housing.

6. The wet film thickness measuring instrument according to claim 5, further comprising an elastic member provided between the pressing portion and the housing.

7. The wet film thickness measuring instrument according to claim 6, wherein said elastic member is a spring, said spring is fitted over said detecting member, one end of said spring is connected to said pressing portion, and the other end of said spring is connected to said housing.

8. The wet film thickness gauge according to claim 5, further comprising a protective sleeve disposed outside said probe member, one end of said protective sleeve being attached to said pressing portion, the other end of said protective sleeve being attached to said housing.

9. The wet film thickness measuring instrument according to any one of claims 1 to 8, wherein the housing is provided at one end with a second piercing portion for piercing the wet film and abutting on the substrate.

10. The wet film thickness measuring instrument according to claim 9, wherein the cross section S of the second piercing portion₂The size of the second puncture part is gradually reduced from one end of the second puncture part close to the shell to one end of the second puncture part far away from the shell.