Quality detection equipment in touch screen production process

Abstract

The invention belongs to the technical field of screen detection, and particularly relates to quality detection equipment in the touch screen production process, the quality detection equipment comprises a supporting mechanism, a pressure feedback detection mechanism, a light transmission detection mechanism and a flatness detection mechanism, the supporting mechanism comprises a base with a positioning groove in the top and a mounting frame located at the top of the base; when the pressure feedback detection mechanism works, the pressure feedback detection mechanism carries out a pressed feedback test on the touch screen located in the positioning groove. When the pressure feedback detection mechanism works, the light transmission detection mechanism is automatically driven to work once to detect the light transmission of the touch screen in the positioning groove. And when the light transmission detection mechanism works once, the flatness detection mechanism is automatically driven to work once to detect the surface flatness of the touch screen in the positioning groove, so that the problems of relatively low detection efficiency and low detection accuracy when multiple performances of the touch screen are detected are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of screen detection, and in particular to a quality detection device in a touch screen production process. Background Art

[0002] Nowadays, the application of touch screens is very extensive. Handheld devices, embedded devices, various PDA devices, computers, etc. all use a large number of touch screens. The types of touch screens include capacitive, resistive, surface acoustic wave, and infrared. Due to the huge demand for touch screen applications, the demand for a large number of touch screens requires us to strictly control the quality of touch screens. Therefore, in the production process of touch screens, testing equipment is needed to conduct strict testing on them.

[0003] At present, the characteristics of touch screens that need to be tested during the production process mainly include pressure feedback, light transmittance, and surface flatness. However, the existing testing methods mostly use multiple sets of corresponding unit testing equipment to test the touch screen to be tested in sequence. This testing method is relatively time-consuming, resulting in relatively low efficiency. At the same time, repeated testing and positioning of the touch screen will introduce cumulative errors, causing stress interference to the touch screen, thereby affecting the accuracy of the test. Summary of the Invention

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid blurring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.

[0005] Therefore, the purpose of the present invention is to provide a quality inspection device in the touch screen production process, which replaces the traditional quality inspection method in the touch screen production process and avoids the problems of low inspection efficiency and low inspection accuracy when performing multiple performance tests on the touch screen.

[0006] To solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0007] A quality inspection device for a touch screen production process, comprising:

[0008] A supporting mechanism comprising a base with a positioning slot on the top and a mounting bracket located on the top of the base;

[0009] a pressure feedback detection mechanism, which is located on the mounting frame and performs a pressure feedback test on the touch screen located in the positioning groove when in operation;

[0010] a light transmittance detection mechanism mounted on the base, wherein when the pressure feedback detection mechanism is in operation, the light transmittance detection mechanism is automatically driven to operate once to detect the light transmittance of the touch screen located in the positioning groove;

[0011] The flatness detection mechanism is installed on the light transmittance detection mechanism, wherein when the light transmittance detection mechanism works once, it automatically drives the flatness detection mechanism to work once, so as to detect the surface flatness of the touch screen located in the positioning groove.

[0012] As a preferred solution of the quality inspection equipment in the touch screen production process described in the present invention, the pressure feedback detection mechanism includes a driving cylinder installed on the mounting frame and a pressure feedback detection component connected to the output end of the driving cylinder.

[0013] As a preferred solution of the quality inspection equipment in the touch screen production process of the present invention, a plurality of pressure sensors are evenly distributed on the bottom of the inner wall of the positioning groove;

[0014] The pressure feedback detection component includes a fixed plate connected to the output end of the driving cylinder at the top and a pressure plate that is transmission-connected to the bottom of the fixed top plate and has multiple elastic contacts evenly distributed on the bottom, wherein the multiple elastic contacts respectively correspond to the positions of the multiple pressure sensors.

[0015] As a preferred solution of a quality inspection device in a touch screen production process described in the present invention, the pressure feedback detection component also includes a pressure pre-tightening component, which includes a first threaded column located at the top of the pressure plate and with the top passing through the fixed plate, a first elastic member sleeved on the first threaded column and located between the pressure plate and the fixed plate, and a pre-tightening bolt threadedly connected to the first threaded column and located at the top of the fixed plate.

[0016] As a preferred solution of the quality inspection equipment in the touch screen production process described in the present invention, the light transmittance detection mechanism includes a light transmittance detection component and a transmission component which is transmission-connected to the light transmittance detection component at one end and transmission-connected to the fixed plate at the other end.

[0017] As a preferred solution of the quality inspection equipment in the touch screen production process described in the present invention, the light transmittance detection component includes a shell with an open bottom structure, a detection light source located on one side of the inner wall of the shell, a photoelectric tube assembly located on the inner wall of the shell and opposite to the detection light source, and a dichroic prism movably connected to the inner wall of the shell through a rotating shaft, and counterweights are respectively provided on the rotating shafts on both sides of the dichroic prism.

[0018] As a preferred embodiment of the quality inspection device for a touch screen production process described in the present invention, the transmission assembly includes a rotating rod movably mounted on the top of the base and having connecting rods on both sides, a second threaded column located on the top of the rotating rod, and a connecting member having one end connected to the bottom of the second threaded column and the other end connected to the top of the rotating rod, wherein one of the connecting rods is connected to the side wall of the housing;

[0019] One side of the fixing plate has a connecting plate threadedly sleeved on the second threaded column;

[0020] The connecting member includes a ratchet connecting seat whose bottom is connected to the top of the rotating rod and has a ratchet groove on the top, and a ratchet plate located in the ratchet groove and having a plurality of elastic pawls on the side wall. The top of the ratchet plate is connected to the bottom of the second threaded column.

[0021] As a preferred embodiment of the quality inspection equipment for a touch screen production process described in the present invention, the side wall of the mounting frame has a soot blowing assembly corresponding to the surface of the positioning groove, the soot blowing assembly includes a vertical first cylinder and a second cylinder located on the side wall of the first cylinder and corresponding to the surface of the positioning groove, and the second cylinder has an elongated blowing hole at one end adjacent to the positioning groove;

[0022] The side wall of the fixing plate has an extrusion column corresponding to the first cylinder;

[0023] A plurality of collecting columns are evenly distributed on the side wall of the rotating rod. The collecting columns are arc-shaped and have semi-closed ends.

[0024] As a preferred solution of the quality inspection equipment in the touch screen production process described in the present invention, the flatness detection mechanism includes a fixed block connected to another connecting rod, a fixed frame installed at the bottom of the fixed block, and multiple movable detection heads installed on the fixed frame.

[0025] As a preferred solution of the quality inspection equipment in the touch screen production process described in the present invention, the bottom of the fixing block has display paper;

[0026] The movable detection head includes a movable trigger post movably clamped on the fixing frame, and a second elastic member sleeved on the movable trigger post and with one top end connected to the bottom of the fixing frame;

[0027] The top of the movable trigger column is provided with a visible paint, and the bottom of the movable trigger column is an arc-shaped structure.

[0028] Compared with the prior art, the beneficial effect of the present invention is that, in the quality inspection equipment in the production process of the touch screen, when the pressure feedback detection mechanism works to inspect the touch screen in the positioning groove, it automatically drives the light transmittance detection mechanism to perform a light transmittance detection on the touch screen. At the same time, when the light transmittance detection mechanism works once, it automatically drives the flatness detection mechanism to work once to detect the surface flatness of the touch screen, thereby automatically completing the light transmittance, flatness and pressure feedback tests, with high inspection efficiency, and avoiding multiple repeated positioning of the touch screen, which easily causes the stress change error of the touch screen to become larger, replacing the traditional quality inspection method in the production process of the touch screen, and avoiding the problems of low inspection efficiency and low inspection accuracy when performing multiple performance tests on the touch screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort. Among them:

[0030] Figure 1 This is a schematic structural diagram of a quality inspection device in a touch screen production process according to the present invention;

[0031] Figure 2 This is a structural breakdown diagram of a quality inspection device in a touch screen production process according to the present invention;

[0032] Figure 3 This is a structural schematic diagram of a pressure feedback component of a quality inspection device in a touch screen production process according to the present invention;

[0033] Figure 4 This is a cross-sectional view of a light transmittance detection component of a quality inspection device for a touch screen production process according to the present invention when not in operation;

[0034] Figure 5 This is a cross-sectional view of a light transmittance detection component of a quality inspection device in a touch screen production process of the present invention when in operation;

[0035] Figure 6 This is a structural exploded diagram of a light transmittance detection mechanism of a quality inspection device in a touch screen production process of the present invention;

[0036] Figure 7 This is a structural schematic diagram of a connector for a quality inspection device in a touch screen production process according to the present invention;

[0037] Figure 8The present invention is a structural schematic diagram of a flatness detection mechanism of a quality inspection device in a touch screen production process.

[0038] In the figure: 100, support mechanism; 110, base; 110a, positioning groove; 120, mounting frame; 120a, sootblowing assembly; 120a-1, first cylinder; 120a-2, second cylinder; 200, pressure feedback detection mechanism; 210, driving cylinder; 220, pressure feedback detection assembly; 220a, fixing plate; 220a-1, connecting plate; 220a-2, extrusion column; 220b, pressure plate; 220b-1, elastic contact; 220c, pre-tightening assembly; 220c-1, first threaded column; 220c-2, first elastic member; 220c-3, pre-tightening bolt; 300, light transmittance detection mechanism; 310, light transmittance detection assembly ; 310a, shell; 310b, detection light source; 310c, photoelectric tube assembly; 310d, dichroic prism; 310d-1, counterweight; 320, transmission assembly; 320a, rotating rod; 320a-1, connecting rod; 320a-2, collecting column; 320b, second threaded column; 320c, connecting piece; 320c-1, ratchet connecting seat; 320c-11, ratchet groove; 320c-2, ratchet disk; 320c-21, elastic pawl; 400, flatness detection mechanism; 410, fixed block; 410a, display paper; 420, fixed frame; 430, movable detection head; 430a, movable trigger column; 430b, second elastic piece. DETAILED DESCRIPTION

[0039] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0040] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0041] To make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0042] The present invention provides a quality inspection device for a touch screen production process, which replaces a traditional quality inspection method for a touch screen production process and avoids the problems of low inspection efficiency and low inspection accuracy when performing multiple performance inspections on the touch screen.

[0043] Figures 1-8The figure shows a schematic diagram of the structure of a quality inspection device in the production process of a touch screen according to the present invention. Figures 1-8 This paper gives a detailed introduction to the quality inspection equipment used in the production process of this touch screen.

[0044] Example 1

[0045] refer to Figures 1-6 The present invention discloses a quality inspection device for a touch screen production process, the main body of which includes a support mechanism 100, a pressure feedback detection mechanism 200, a light transmittance detection mechanism 300 and a flatness detection mechanism 400.

[0046] refer to Figure 1-Figure 2 The support mechanism 100 is used to support and install the entire detection device. The support mechanism 100 includes a base 110 with a positioning groove 110a on the top and a mounting bracket 120 located on the top of the base 110. The base 110 is used to facilitate the installation of the mounting bracket 120. The positioning groove 110a is used to position and support the touch screen to be detected. The mounting bracket 120 is used to facilitate the installation of the pressure feedback detection mechanism 200.

[0047] refer to Figure 1-Figure 2 The pressure feedback detection mechanism 200 is used to detect the pressure feedback of the touch screen in the positioning groove 110a after it is pressed. The pressure feedback detection mechanism 200 is located on the mounting frame 120 and performs a pressure feedback test on the touch screen in the positioning groove 110a when it is working. Therefore, when the touch screen is tested, the pressure feedback detection mechanism 200 detects the feedback of the touch screen in the positioning groove 110a after it is pressed.

[0048] refer to Figures 1-6 The light transmittance detection mechanism 300 is used to detect the light transmittance of the touch screen when it is working. The light transmittance detection mechanism 300 is installed on the base 110. When the pressure feedback detection mechanism 200 is working, it automatically drives the light transmittance detection mechanism to work once to detect the light transmittance of the touch screen located in the positioning groove 110a. When the pressure feedback detection mechanism 200 is working, it drives the light transmittance detection mechanism 300 to work automatically once to detect the light transmittance of the touch screen located in the positioning groove 110a.

[0049] refer to Figure 1-Figure 2The flatness detection mechanism 400 is used to detect the flatness of the touch screen surface when it is working. The flatness detection mechanism 400 is installed on the light transmittance detection mechanism. When the light transmittance detection mechanism 300 works once, it automatically drives the flatness detection mechanism 400 to work once to detect the surface flatness of the touch screen located in the positioning groove 110a. Therefore, during the operation of the light transmittance detection mechanism 300, it automatically drives the flatness detection mechanism 400 to automatically detect the flatness of the touch screen surface located in the positioning groove 110a.

[0050] In this embodiment, the specific usage process is as follows: the touch screen to be tested is placed in the positioning groove 110a for positioning. When the test starts, the pressure feedback detection mechanism 200 works to detect the feedback of the touch screen located in the positioning groove 110a after being pressed. At the same time, when the pressure feedback detection mechanism 200 works, it automatically drives the transmittance detection mechanism 300 to work automatically once, and performs a test on the transmittance of the touch screen located in the positioning groove 110a. In this process, when the transmittance detection mechanism 300 works, it automatically drives the flatness detection mechanism 400 to work automatically once, and automatically detects the flatness of the touch screen surface located in the positioning groove 110a, thereby automatically completing the performance test of the pressure feedback, transmittance and flatness of the touch screen. The degree of automation is high, and the detection efficiency is improved. At the same time, the touch screen to be tested only needs to be positioned once in the positioning groove 110a, and there is no need to repeat the positioning multiple times, thereby avoiding the accumulation of stress errors of the touch screen causing a decrease in subsequent detection accuracy.

[0051] Example 2

[0052] Based on Example 1, Figure 1-Figure 3 The pressure feedback detection mechanism 200 includes a driving cylinder 210 installed on the mounting frame 120 and a pressure feedback detection component 220 connected to the output end of the driving cylinder 210. The driving cylinder 210 is used to drive the pressure feedback detection component 220 to move up and down during operation. The pressure feedback detection component 220 is used to drive the cylinder 210 to move downward to a certain position and perform pressure feedback detection on the touch screen located in the positioning groove 110a.

[0053] In this embodiment, a plurality of pressure sensors are evenly distributed on the bottom of the inner wall of the positioning groove 110a, which are used to sense the pressure transmitted from the bottom of the touch screen in the positioning groove 110a and feed back the sensed pressure value to the system for analysis;

[0054] refer to Figure 1-Figure 3The pressure feedback detection component 220 includes a fixed plate 220a connected to the output end of the driving cylinder 210 at the top and a pressure plate 220b that is transmission-connected to the bottom of the fixed top plate and has multiple elastic contacts 220b-1 evenly distributed on the bottom, wherein the multiple elastic contacts 220b-1 respectively correspond to the positions of multiple pressure sensors. The fixed plate 220a is used to facilitate the installation of the pressure plate 220b, and the pressure plate 220b is used to facilitate the installation of multiple elastic protrusions, and drive the multiple elastic protrusions to move up and down synchronously when moving up and down. The elastic protrusions are used to synchronously apply pressure to multiple positions on the top surface of the touch screen located in the positioning groove 110a when the pressure plate 220b moves downward and drives it to press downward, thereby cooperating with the pressure value sensed by the pressure sensor to facilitate the system to analyze the pressure value fed back after the touch screen is pressed, and then facilitate the analysis and judgment of the touch pressure sensitivity of the touch screen.

[0055] In this embodiment, reference Figure 1-Figure 3 The pressure feedback detection component 220 also includes a pressure pre-tightening component 220c, which is used to adjust the strength of the pressure applied to the top of the touch screen in the positioning groove 110a when the pressure plate 220b moves downward. The pressure pre-tightening component 220c includes a first threaded column 220c-1 located at the top of the pressure plate 220b and the top of which passes through the fixed plate 220a, a first elastic member 220c-2 sleeved on the first threaded column 220c-1 and located between the pressure plate 220b and the fixed plate 220a, and a pre-tightening bolt 220c-3 threadedly connected to the first threaded column 220c-1 and located at the top of the fixed plate 220a. The first threaded rod is used to facilitate the cooperation with the pre-tightening bolt 220c -3 adjusts the distance between the fixed plate 220a and the pressure plate 220b, the first elastic member 220c-2 is used to elastically connect the fixed plate 220a and the pressure plate 220b through its own tensile characteristics, and the pre-tightening bolt 220c-3 is used to cooperate with the first threaded column 220c-1. After the distance between the pressure plate 220b and the fixed plate 220a is adjusted, it is tightened and fixed. Therefore, when it is necessary to adjust the pressure strength of the touch screen, after unscrewing the pre-tightening bolt 220c-3, the self-test distance between the fixed plate 220a and the pressure plate 220b is adjusted accordingly, and then the pre-tightening bolt 220c-3 is tightened on the top of the first threaded column 220c-1.

[0056] In this embodiment, the specific working process is as follows: the touch screen to be tested is placed in the positioning groove 110a, and then the pressure strength of the touch screen is adjusted by the pre-tightening component 220c according to the detection needs. When the detection starts, the driving cylinder 210 starts working to drive the entire pressure feedback detection component 220 to move downward. When the driving cylinder 210 works, it drives the fixed plate 220a and the pressure plate 220b to move downward synchronously until the elastic protrusion at the bottom of the pressure plate 220b applies pressure to the top of the touch screen and then stops moving. At this time, the multiple pressure sensors at the bottom of the inner wall of the positioning groove 110a transmit the pressure values ​​sensed at each position to the system for analysis, thereby analyzing the pressure feedback of the touch screen. After the detection is completed, the driving cylinder 210 works again to drive the entire pressure feedback detection component 220 to move upward.

[0057] Example 3

[0058] Based on Example 2, Figures 1-6 The light transmittance detection mechanism 300 includes a light transmittance detection component 310 and a transmission component 320 having one end connected to the light transmittance detection component 310 and the other end connected to the fixed plate 220a. The light transmittance detection component 310 is used to detect the light transmittance of the touch screen in the positioning groove 110a when working. The transmission component 320 is used to automatically trigger the light transmittance detection mechanism 300 to work once when the driving cylinder 210 drives the fixed plate 220a to move downward, thereby completing the light transmittance detection process of the touch screen.

[0059] In this embodiment, reference Figures 1-6The light transmittance detection component 310 includes a shell 310a with an open bottom structure, a detection light source 310b located on one side of the inner wall of the shell 310a, a photoelectric tube assembly 310c located on the inner wall of the shell 310a and opposite the detection light source 310b, and a beam splitter prism 310d movably connected to the inner wall of the shell 310a through a rotating shaft. There are counterweight blocks 310d-1 on the rotating shafts on both sides of the beam splitter prism 310d respectively. The shell 310a is used to facilitate the installation of the detection light source 310b, the photoelectric tube assembly 310c and the beam splitter prism 310d. At the same time, the detection light source 310b is focused to avoid energy loss caused by light loss. The detection light source 310b is used to emit LED light when working, and the photoelectric tube assembly 310c is used to absorb the received light and transmit the received light intensity information to the system. According to system analysis, the dichroic prism 310d is used to block the light emitted by the detection light source 310b, and the counterweight block 310d-1 is used to open the dichroic prism 310d between the detection light source 310b and the photoelectric tube assembly 310c through its own gravity when the pressure feedback detection mechanism 200 is not working. When the pressure feedback detection mechanism 200 is working and drives the rotating rod 320a to rotate, the counterweight block 310d-1 drives the rotating shaft of the dichroic prism 310d to rotate under the centrifugal force, so that the side wall of the dichroic prism 310d blocks the detection light source 310b and the photoelectric tube assembly 310c, and at the same time, refracts the light emitted by the detection light source 310b to the touch screen below. Therefore, the dichroic prism 310d plays the role of blocking the light when no detection is performed and refracting the transmitted light when the detection starts.

[0060] In this embodiment, reference Figures 1-6 The transmission assembly 320 includes a rotating rod 320a movably mounted on the top of the base 110 and having connecting rods 320a-1 on both sides, a second threaded column 320b located at the top of the rotating rod 320a, and a connecting member 320c connected to the bottom of the second threaded column at one end and the top of the rotating rod 320a at the other end. The rotating rod 320a is used to drive the entire light transmittance detection assembly 310 to move when it rotates. The second threaded rod is used to drive the connecting member 320c to rotate when the connecting plate 220a-1 moves downward and drives it to rotate. The connecting member 320c is used to drive the rotating rod 320a to rotate when it rotates. One of the connecting rods 320a-1 is connected to the side wall of the shell 310a, and is used to drive the shell 310a to move when the rotating rod 320a rotates.

[0061] refer to Figure 1-Figure 3 , one side of the fixed plate 220a has a connecting plate 220a-1 threadedly sleeved on the second threaded column 320b, which is used to drive the second threaded rod to rotate synchronously when the fixed plate 220a moves downward;

[0062] refer to Figure 1-Figure 7The connecting member 320c includes a ratchet connecting seat 320c-1 whose bottom is connected to the top of the rotating rod 320a and has a ratchet groove 320c-11 on the top, and a ratchet disk 320c-2 located in the ratchet groove 320c-11 and has multiple elastic pawls 320c-21 on the side wall. The top of the ratchet disk 320c-2 is connected to the bottom of the second threaded column 320b, and is used to drive the rotating rod 320a to rotate when the connecting plate 220a-1 moves downward to drive the second thread to rotate, and drives the connecting member 320c to rotate. When the connecting plate 220a-1 moves online and drives the second threaded rod to reverse, under the cooperation of the elastic pawl 320c-21 and the ratchet groove 320c-11, the rotating rod 320a will not reverse at this time, thereby reducing the probability of data disorder affecting the detection result after the photoelectric tube assembly 310c receives two sets of data.

[0063] In this embodiment, the specific working process is as follows: when the fixed position is not moved, refer to Figure 4 At this time, the beam splitter prism 310d is open to the detection light source 310b and the photoelectric tube assembly 310c under the action of the gravity of the counterweight 310d-1 without any barrier. When the fixing plate 220a moves downward and drives the connecting plate 220a-1 to move downward, it drives the second threaded column 320b to rotate. When the second threaded column 320b rotates, it drives the connecting member 320c to rotate. When the connecting member 320c rotates, it drives the rotating rod 320a to rotate. When the rotating rod 320a rotates, it drives the housing 310a to move above the touch screen. At this time, refer to Figure 5 The counterweight 310d-1 drives the spectroscopic prism 310d to rotate under the centrifugal force, so that the wind-light prism blocks the detection light source 310b and the photoelectric tube assembly 310c. At the same time, the light emitted by the detection light source 310b is refracted and directed downward, so that during the movement, the light is easily illuminated to the top of the touch screen. In this process, the photoelectric tube assembly 310c receives the light data reflected by the touch screen, and thus detects and analyzes its light transmittance, completing the light transmittance test of the touch screen before the pressure feedback test is completed.

[0064] In addition, the pressure feedback detection mechanism 200 is mechanically linked to the transmittance detection mechanism 300, so that the transmittance detection occurs before the pressure feedback detection, thereby avoiding changes in stress on the touch screen after being pressurized, thereby avoiding the stress inside the touch screen after the pressure test causing distortion in subsequent transmittance detection.

[0065] Example 4

[0066] Based on Example 3, Figures 1-6The side wall of the mounting frame 120 has a soot blowing assembly 120a corresponding to the surface of the positioning groove 110a, which is used to blow away dust and other impurities that may be adsorbed by static electricity on the surface of the touch screen before the pressure plate 220b contacts the touch screen when the driving cylinder 210 drives the fixing plate 220a to move downward, thereby avoiding affecting the balance of the touch screen surface when it is under pressure. The soot blowing assembly 120a includes a vertical first cylinder 120a-1 and a soot blowing assembly 120a located on the side wall of the first cylinder 120a-1 and corresponding to the surface of the positioning groove 110a. The first cylinder 120a-1 is used to discharge the internal air into the second cylinder 120a-2 when it is squeezed by the squeezing column 220a-2. The second cylinder 120a-2 is used to blow the high-pressure air toward the surface of the touch screen after the internal air pressure increases. The second cylinder 120a-2 has an elongated blowing hole at one end adjacent to the positioning groove 110a, which is used to increase the flow rate of the air blown out by the second cylinder 120a-2, thereby increasing the intensity of cleaning dust and other impurities on the surface of the touch screen;

[0067] The side wall of the fixed plate 220a has a squeezing column 220a-2 corresponding to the first cylinder 120a-1, which is used to squeeze the air inside the first cylinder 120a-1 when the fixed plate 220a drives it to move downward;

[0068] refer to Figure 6 There are multiple collecting bars 320a-2 evenly distributed on the side wall of the rotating rod 320a, which are used to scrape and gather the blown impurities when the rotating rod 320a rotates and drives it to rotate, so as to facilitate the recovery and cleaning of the impurities. The collecting bar 320a-2 has an arc-shaped structure and a semi-closed structure at the end. During the rotation of the collecting bar 320a-2, the impurities scraped from it are gradually guided into the interior of the semi-closed structure through the guidance of the arc structure, thereby gathering the impurities together for easy collection and cleaning.

[0069] In this embodiment, the specific working process is as follows: when the driving cylinder 210 drives the fixed plate 220a to move downward, the extrusion column 220a-2 gradually squeezes the air inside the first cylinder 120a-1, so that high-pressure air is blown out from the blowing hole at one end of the second cylinder 120a-2, blowing away dust and other impurities that may be attached to the surface of the touch screen. At the same time, the rotation of the rotating rod 320a drives the collection column 320a-2 to rotate, and the blown impurities are collected and collected for easy cleaning.

[0070] Example 5

[0071] Based on Example 4, Figures 1-8The flatness detection mechanism 400 includes a fixed block 410 connected to another connecting rod 320a-1, a fixed frame 420 installed at the bottom of the fixed block 410, and a plurality of movable detection heads 430 installed on the fixed frame 420. The fixed block 410 is used to facilitate the installation of the fixed frame 420 and the movable detection heads 430. The fixed frame 420 is used to facilitate the installation of the plurality of movable detection heads 430. The movable detection heads 430 are used to detect the flatness of the touch screen surface when in contact with the top surface of the touch screen.

[0072] In this embodiment, reference Figure 8 The bottom of the fixed block 410 has a display paper 410a for displaying when the top of the movable trigger column 430a contacts it and the visible paint is applied to its surface;

[0073] refer to Figure 8 The activity detection head 430 includes an activity triggering post 430a that is movably clipped onto the fixing frame 420, and a second elastic member 430b that is sleeved on the activity triggering post 430a and has one top end connected to the bottom of the fixing frame 420. The activity triggering post 430a is used to mark the display paper 410a through the visible paint on the top during the process of being pushed upward after the bottom of the activity triggering post 430a contacts the protruding position on the touch screen surface. The second elastic member 430b is used to use its own elastic characteristics to keep the activity triggering post 430a able to automatically return to its position after contacting the protruding position on the touch screen surface.

[0074] Among them, the top of the active trigger column 430a has a visible paint, which is used to mark the display paper 410a after the active trigger column 430a is pushed upward. The bottom of the active trigger column 430a has an arc-shaped structure, which is used to reduce the friction when the bottom of the active trigger column 430a contacts the touch screen surface, thereby avoiding damage to the touch screen surface during movement.

[0075] In this embodiment, the specific working process is as follows: when the rotating rod 320a rotates, the flatness detection mechanism 400 rotates synchronously. After the light transmittance detection mechanism 300 completes the detection, while the movable trigger post 430a moves and its bottom contacts the touch screen surface, when the bottom of the movable trigger post 430a contacts a protrusion on the touch screen surface, the movable trigger post 430a is lifted up, and the visible paint on the top of the post marks the display paper 410a. When the special operation stops, the flatness of the touch screen surface is tested by analyzing the marked point on the display paper 410a.

[0076] In addition, through the mechanical linkage of the transmittance detection mechanism 300 and the flatness detection mechanism 400, the detection work of the flatness detection mechanism 400 also occurs before the pressure feedback detection, thereby avoiding the change in the surface flatness of the touch screen after being pressed by the pressure plate 220b, thereby affecting the accuracy of its flatness detection. At the same time, through one rotation of the rotating rod 320a, the test power of the transmittance detection and the flatness detection is completed, which is highly efficient and has a simple structure and reduces energy consumption.

[0077] Although the present invention has been described above with reference to embodiments, various modifications may be made thereto and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as there are no structural conflicts, the various features of the embodiments disclosed herein may be combined with each other in any manner, and the omission of an exhaustive description of such combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A quality inspection device for a touch screen production process, characterized in that: include: A support mechanism (100) comprising a base (110) having a positioning groove (110a) on the top and a mounting frame (120) located on the top of the base (110); a pressure feedback detection mechanism (200), which is located on the mounting frame (120) and performs a pressure feedback test on the touch screen located in the positioning groove (110a) when in operation; a light transmittance detection mechanism (300) mounted on the base (110), wherein when the pressure feedback detection mechanism (200) operates, it automatically drives the light transmittance detection mechanism to operate once, thereby detecting the light transmittance of the touch screen located in the positioning groove (110a); A flatness detection mechanism (400) is mounted on the light transmittance detection mechanism, wherein when the light transmittance detection mechanism (300) operates once, it automatically drives the flatness detection mechanism (400) to operate once, thereby detecting the surface flatness of the touch screen located in the positioning groove (110a).

2. The quality inspection equipment for touch screen production according to claim 1, characterized in that: The pressure feedback detection mechanism (200) comprises a driving cylinder (210) mounted on the mounting frame (120) and a pressure feedback detection assembly (220) connected to the output end of the driving cylinder (210).

3. The quality inspection equipment for touch screen production according to claim 2, characterized in that: A plurality of pressure sensors are evenly distributed on the bottom of the inner wall of the positioning groove (110a); The pressure feedback detection component (220) comprises a fixed plate (220a) whose top is connected to the output end of the driving cylinder (210), and a pressure plate (220b) which is transmission-connected to the bottom of the fixed top plate and has multiple elastic contacts (220b-1) evenly distributed on the bottom, wherein the multiple elastic contacts (220b-1) respectively correspond to the positions of the multiple pressure sensors.

4. The quality inspection equipment for touch screen production according to claim 3, characterized in that: The pressure feedback detection assembly (220) further includes a pressure pre-tightening assembly (220c), which includes a first threaded column (220c-1) located at the top of the pressure plate (220b) and with the top passing through the fixed plate (220a), a first elastic member (220c-2) sleeved on the first threaded column (220c-1) and located between the pressure plate (220b) and the fixed plate (220a), and a pre-tightening bolt (220c-3) threadedly connected to the first threaded column (220c-1) and located at the top of the fixed plate (220a).

5. The quality inspection equipment for touch screen production according to claim 4, characterized in that: The light transmittance detection mechanism (300) comprises a light transmittance detection component (310) and a transmission component (320) having one end transmission-connected to the light transmittance detection component (310) and the other end transmission-connected to the fixed plate (220a).

6. The quality inspection equipment for touch screen production according to claim 5, characterized in that: The light transmittance detection component (310) comprises a shell (310a) having an open bottom structure, a detection light source (310b) located on one side of the inner wall of the shell (310a), a photoelectric tube component (310c) located on the inner wall of the shell (310a) and opposite the detection light source (310b), and a beam splitter prism (310d) movably connected to the inner wall of the shell (310a) via a rotating shaft, and counterweight blocks (310d-1) are respectively provided on the rotating shafts on both sides of the beam splitter prism (310d).

7. The quality inspection equipment for touch screen production according to claim 6, characterized in that: The transmission assembly (320) comprises a rotating rod (320a) movably mounted on the top of the base (110) and having connecting rods (320a-1) on both sides, a second threaded column (320b) located on the top of the rotating rod (320a), and a connecting member (320c) having one end connected to the bottom of the second threaded column and the other end connected to the top of the rotating rod (320a), wherein one of the connecting rods (320a-1) is connected to a side wall of the housing (310a); One side of the fixing plate (220a) comprises a connecting plate (220a-1) threadedly sleeved on the second threaded column (320b); The connecting member (320c) comprises a ratchet connecting seat (320c-1) whose bottom is connected to the top of the rotating rod (320a) and whose top has a ratchet groove (320c-11); and a ratchet disc (320c-2) located in the ratchet groove (320c-11) and whose side wall has a plurality of elastic pawls (320c-21); the top of the ratchet disc (320c-2) is connected to the bottom of the second threaded column (320b).

8. The quality inspection equipment for touch screen production according to claim 7, characterized in that: The side wall of the mounting frame (120) has a soot blowing assembly (120a) corresponding to the surface of the positioning groove (110a), the soot blowing assembly (120a) comprising a vertical first cylinder (120a-1) and a second cylinder (120a-2) located on the side wall of the first cylinder (120a-1) and corresponding to the surface of the positioning groove (110a), the second cylinder (120a-2) having an elongated blowing hole at one end adjacent to the positioning groove (110a); The side wall of the fixing plate (220a) has an extrusion column (220a-2) corresponding to the first cylinder (120a-1); A plurality of collecting columns (320a-2) are evenly distributed on the side wall of the rotating rod (320a); the collecting columns (320a-2) are arc-shaped structures and the ends thereof are semi-closed structures.

9. The quality inspection equipment for touch screen production according to claim 7, characterized in that: The flatness detection mechanism (400) comprises a fixed block (410) connected to another connecting rod (320a-1), a fixed frame (420) mounted on the bottom of the fixed block (410), and a plurality of movable detection heads (430) mounted on the fixed frame (420).

10. The quality inspection equipment for touch screen production according to claim 9, characterized in that: The bottom of the fixing block (410) is provided with display paper (410a); The movable detection head (430) comprises a movable trigger column (430a) movably clamped on the fixing frame (420), and a second elastic member (430b) sleeved on the movable trigger column (430a) and having one top end connected to the bottom of the fixing frame (420); The top of the movable trigger column (430a) is coated with visible paint, and the bottom of the movable trigger column (430a) is an arc-shaped structure.

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