Diffusion sheet measuring device

Abstract

The utility model belongs to the field of diffusion sheet quality inspection, and particularly relates to a diffusion sheet measuring device which comprises a positioning device, a supporting plate, a limiting device, a conveying mechanism and a thickness measuring device, side plates are installed on the two sides of the conveying mechanism, the supporting plate is fixedly connected between the two side plates, and the limiting device is arranged on the supporting plate. The positioning device is fixedly connected to the side plate, the limiting device is fixedly connected to the inner side of the side plate and located above the supporting plate, a diffusion sheet is arranged on the supporting plate, and the positioning device is connected with the diffusion sheet in an abutting mode. The thickness measuring device is connected to the limiting device in a sliding mode and located above the diffusion sheet, and the positioning device and the limiting device are both in signal connection with a controller; according to the device, the thickness of the diffusion sheet can be measured, the diffusion sheet is positioned through the positioning device, the size of the diffusion sheet is obtained according to measurement of the top laser thickness gauge, unqualified products are sorted, manpower is saved, and efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of diffusion sheet manufacturing, in particular to a diffusion sheet measuring device. Background Art

[0002] The application scenarios of circular diffusers are quite extensive, mainly because they can adjust the angle, direction and uniformity of light, making the light more uniform, soft, comfortable, and reducing glare. After the diffuser is made, a quality inspection process is required to detect whether the size of the diffuser meets the requirements. For example, if the thickness deviation of the diffuser is too large, it will affect the subsequent use effect. The thickness of the diffuser is directly related to its diffusion effect. If there is an error in thickness, the number of reflections and scatterings experienced by the light inside the plate may not be consistent with expectations, thereby affecting the uniform diffusion effect of light. As the thickness of the diffuser increases, the transmittance will gradually decrease. Therefore, if there is an error in thickness, the actual transmittance may not be consistent with expectations. Therefore, it is necessary to conduct quality inspection on the size of the diffuser, and the qualified rate of products after quality inspection is higher after they are sold.

[0003] In order to solve the above problems, a diffuser measuring device is specifically proposed. Utility Model Content

[0004] The utility model aims to solve the above-mentioned problems and designs a diffuser measuring device in a targeted manner. The device can measure the thickness of the diffuser and clamp it through push rods on both sides in cooperation with a limit device. When clamping, the thickness of the diffuser can be obtained according to the data sent back by the top laser thickness meter, and then unqualified products can be sorted, which saves manpower and improves efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides a diffusion sheet measuring device, comprising: a positioning device, a support plate, a limit device and a conveying mechanism, side plates are installed on both sides of the conveying mechanism, the support plate is fixedly connected between the two side plates, the positioning device is fixedly connected to the side plates, the limit device is fixedly connected to the inner side of the side plates and is located above the support plate, the diffusion sheet is placed on the support plate, the positioning device is in contact with the diffusion sheet, the thickness measuring device is slidably connected to the limit device and is located above the diffusion sheet, and the positioning device and the limit device are both connected to the controller signal.

[0006] Furthermore, the thickness measuring device includes: a mounting frame, a slider, a motor, a laser thickness gauge, a rack, a gear and a lead screw. The two side edges of the mounting frame are slidably connected to the side edges of the limiting device, the lead screw is provided at the front end of the mounting frame, the motor is located on the side edges of the mounting frame and is connected to the lead screw, the slider is slidably connected to the lead screw, the laser thickness gauge is located below the mounting frame and is detachably connected to the slider, the rack is fixedly connected to the inside of the side edge of the mounting frame, and the gear is connected to the limiting device and is rollingly connected to the rack.

[0007] Through the above method, when the diffuser is placed on the support plate by the positioning device, the laser thickness gauge detects the thickness of the diffuser below. At the same time, the motor drives the lead screw, the lead screw drives the slider and the laser thickness gauge to move translationally, the gear drives the rack, and the rack drives the mounting frame to move translationally. The above components can make the laser thickness gauge move arbitrarily in the horizontal direction, and multiple positions on the diffuser can be selected to measure the thickness, making the measurement data more comprehensive and accurate.

[0008] Furthermore, the positioning device includes: a first push rod, a second push rod, a laser rangefinder, a pressure sensor and a push block, one end of the first push rod is fixedly connected to a side plate away from the limiting device, the first push rod is located directly above the support plate, one end of the second push rod is fixedly connected to the side plate, the second push rod is located above the support plate and perpendicular to the first push rod, the telescopic ends of the first push rod and the second push rod are fixedly connected to the push block, the push block is abutted against the diffuser, the laser rangefinder is fixedly connected to the push block, and the pressure sensor is installed on the surface of the push block that contacts the diffuser.

[0009] Through the above method, the first push rod and the second push rod cooperate to apply thrust to the diffuser, fixing the diffuser at the angle formed by the baffle and the limit block, which can play a role in positioning the diffuser. On the other hand, the positioning device can also use a laser rangefinder to detect the distance between the push block and the baffle and the distance between the push block and the limit block, so as to obtain the size of the diffuser, which can be adapted to measure round and square diffusers. At the same time, when the push block presses the diffuser, the pressure sensor thereon transmits a signal to the controller after detecting the set pressure value, and the controller controls the push rod to stop advancing to prevent damage to the diffuser caused by excessive pressure.

[0010] Furthermore, the limiting device includes a baffle and a limiting block, the baffle is fixedly connected to the inner side of the side plate and is located above the support plate, and the limiting block is slidably connected to the baffle.

[0011] Furthermore, it also includes a sorting device, which is supported and installed on the side plate and located above the conveying mechanism, and the sorting device is located behind the supporting plate.

[0012] Furthermore, the sorting device includes: a support frame, a motor, a transmission shaft, a material dividing plate and a partition, the two ends of the support frame are respectively fixedly connected to the top of the side plates on both sides, the motor is installed on the support frame, the output end of the motor is connected to the transmission shaft, the other end of the transmission shaft is connected to the material dividing plate, and the partition is fixedly connected to the bottom of the support frame.

[0013] Through the above method, when the data of the diffuser measured by the laser thickness meter and the laser sensor meets the standard, the second push rod pushes the diffuser out of the support plate. At the same time, the limit block rises, causing the diffuser to fall onto the conveying mechanism and be transported to the next process under the drive of the conveying mechanism. When the data is unqualified, the motor rotates, and the dividing plate can change the movement path of the diffuser on the conveyor belt and transport it to the other side of the partition, thereby realizing the sorting function.

[0014] Furthermore, the positioning device also includes a sliding rod, one end of which is fixedly connected to the side of the limiting device, and the other end is fixedly connected to the side plate opposite to the limiting device. The sliding rod is located directly above the support plate and is slidably connected to the push block on the first push rod.

[0015] In summary, the utility model has the following advantages and beneficial technical effects:

[0016] 1. The utility model provides a diffuser sheet measuring device that can measure the thickness of the diffuser sheet through a thickness measuring device, achieving a certain degree of automation, and the laser thickness meter can be moved arbitrarily in the horizontal direction, and can measure multiple points on the diffuser sheet, making the thickness data detected more accurate and improving the quality control of the product;

[0017] 2. The material dividing device of the diffusion sheet measuring device of the utility model can sort out the products that do not meet the standards, replacing manual sorting and improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 It is a structural schematic diagram of a diffusion sheet measuring device of the utility model;

[0020] Figure 2 It is a top view of a diffusion sheet measuring device of the utility model;

[0021] Figure 3 The utility model Figure 1 A magnified view of middle;

[0022] Figure 4 It is a transmission schematic diagram of a limit device of a diffusion sheet measuring device of the utility model;

[0023] Figure 5 The utility model is a structural schematic diagram of a thickness measuring device of a diffusion sheet measuring device.

[0024] The reference numerals in the accompanying drawings are:

[0025] 1-positioning device; 11-first push rod; 12-second push rod; 13-laser rangefinder; 14-pressure sensor; 15-sliding rod; 16-push block;

[0026] 2-support plate; 3-limiting device; 31-baffle; 32-limiting block;

[0027] 4-transmission mechanism; 41-side plate;

[0028] 5-sorting device; 51-support frame; 52-motor; 53-transmission shaft; 54-separating plate; 55-partition plate;

[0029] 6-diffuser; 7-thickness measuring device; 71-mounting frame; 72-slider; 73-driving motor; 74-laser thickness meter; 75-rack; 76-gear; 77-lead screw. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-Figure 5 The utility model is further described in detail, and examples of embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar components or components having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the utility model, and should not be construed as limiting the utility model.

[0031] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, it can be a mechanical connection or an electrical connection, it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the description of this embodiment, the terms "upper", "lower", "right", etc., and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning. The parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0033] like Figure 1 and Figure 2 As shown, it includes: a positioning device 1, a support plate 2, a limiting device 3 and a conveying mechanism 4, side plates 41 are installed on both sides of the conveying mechanism 4 by bolts, the support plate 2 is fixedly connected between the two side plates 41 by bolts, the positioning device 1 is fixedly connected to the side plate 41, the limiting device 3 is fixedly connected to the inner side of the side plate 41 and is located above the support plate 2, the diffuser 6 is placed on the support plate 2, the positioning device 1 is in contact with the diffuser 6, and the positioning device 1 and the limiting device 3 are both connected to the controller for communication through wires or signals.

[0034] like Figure 1 , 2 and Figure 5 As shown, the thickness measuring device 7 includes: a mounting frame 71, a slider 72, a drive motor 73, a laser thickness meter 74, a rack 75, a gear 76 and a lead screw 77. The two side edges of the mounting frame 71 are slidably connected to the side edges of the limiting device 3. A groove is provided at the front end of the mounting frame 71, and a lead screw 77 is rotatably connected in the groove. The drive motor 73 is located at the side edge of the mounting frame 71 and is connected to the lead screw 77. The slider 72 is inserted into the groove and is slidably connected to the lead screw 77 through a threaded screw. The laser thickness meter 74 is located below the mounting frame 71 and is detachably connected to the slider 72 through bolts. The rack 75 is fixedly connected to the inside of the side edge of the mounting frame 71 by welding. The gear 76 is connected to the limiting device 3 and is rollingly connected to the rack 75. The other end of the gear 76 is placed inside the baffle 31, and a micro motor is installed in the baffle 31, and the micro motor is connected to the gear 76.

[0035] like Figure 1 , Figure 2 and Figure 3As shown, the positioning device 1 includes: a first push rod 11, a second push rod 12, a laser rangefinder 13, a pressure sensor 14 and a push block 16. One end of the first push rod 11 is fixedly connected to a side plate 41 away from the limiting device 3 by bolts, that is, the side plate 41 directly opposite to the limiting device 3. The first push rod 11 is located directly above the support plate 2, and one end of the second push rod 12 is fixedly connected to the side plate 41 by a steel plate. The second push rod 12 is parallel to the side plate 41, and the second push rod 12 is located above the support plate 2 and perpendicular to the first push rod 11. The telescopic ends of the first push rod 11 and the second push rod 12 are fixedly connected to the push block 16 by bolts. The push block 16 is in contact with the diffuser 6. The laser rangefinder 13 is installed on the push block 16 by bolts, and the pressure sensor 14 is installed on the side of the push block 16 that contacts the diffuser 6.

[0036] The first push rod 11 and the second push rod 12 are electric push rods, and the conveying mechanism 4 is a conveyor belt.

[0037] The positioning device 1 also includes a sliding rod 15, one end of which is fixedly connected to the side of the limiting device 3 by bolts, and the other end is fixedly connected to the side plate 41 opposite to the limiting device 3. The sliding rod 15 is located directly above the support plate 2 and is slidably connected to the push block 16 on the first push rod 11.

[0038] like Figure 4 As shown, the limiting device 3 includes a baffle 31 and a limiting block 32. The baffle 31 is a hollow structure with a notch formed on the baffle 31. The baffle 31 is fixedly connected to the inner side of the side plate 41 by welding and is located above the support plate 2. The limiting block 32 passes through the notch and is slidably connected to the baffle 31 by a gear chain. The end of the limiting block 32 is connected to the chain. The notch limits the limiting block 32. When the second push rod 12 presses against the diffuser 6, the limiting block 32 is fixed.

[0039] like Figure 1 and Figure 2 As shown, it also includes a sorting device 5, which is supported and installed on the side plate 41 and is located above the conveying mechanism 4. The sorting device 5 is located behind the supporting plate 2.

[0040] like Figure 1 and Figure 2 As shown, the sorting device 5 includes: a support frame 51, a motor 52, a transmission shaft 53, a dividing plate 54 and a partition 55. The two ends of the support frame 51 are fixedly connected to the top of the side plates 41 on both sides by welding, and the motor 52 is installed on the support frame 51 by bolts. The output end of the motor 52 is connected to the transmission shaft 53, and the other end of the transmission shaft 53 is connected to the dividing plate 54 by bolts. The partition 55 is fixedly connected to the bottom of the support frame 51 by welding.

[0041] The working principle of the diffusion sheet measuring device of the utility model is:

[0042] The staff puts the diffuser 6 on the support plate 2 and starts the device. The ends of the first push rod 11 and the second push rod 12 extend simultaneously and generate thrust on the diffuser 6. The first push rod 11 pushes the diffuser 6 against the baffle 31, and the second push rod 12 pushes the diffuser 6 against the limit block 32. The pressure sensor 14 on the push block 16 detects that the pressure reaches the set value and transmits the signal to the controller. The controller controls the push rod to stop extending. The laser thickness gauge 7 on the top irradiates the laser on the diffuser to measure the thickness of the diffuser. At the same time, the drive motor 73 and the gear 76 start in coordination to move the laser thickness gauge 74 on the horizontal plane. The thickness is measured at multiple positions on the diffuser. At this time, the laser rangefinder on the push block 16 also Measurable data: the laser rangefinder 14 on the first push rod 11 measures the distance from the push block 16 to the baffle 31; the second push rod 12 measures the distance from the push block 16 to the limit block 32. The measurement in two directions can realize the measurement of the square or round diffuser 6. For products whose thickness and size data are within the qualified range, the first push rod 11 retreats, the limit block 32 rises, and the second push rod 12 pushes the diffuser 6 onto the conveying mechanism 4, and the conveying mechanism 4 transports the diffuser 6 forward. When the product is unqualified, the motor 52 drives the dividing plate 54 to rotate, and the end of the dividing plate 54 close to the support plate 2 turns to the direction of the limit device 3. When the diffuser 6 is pushed, it will be divided to the other side of the partition 55 by the dividing plate 54.

[0043] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A diffuser measuring device, characterized in that: include: A positioning device (1), a support plate (2), a limiting device (3), a conveying mechanism (4) and a thickness measuring device (7), wherein side plates (41) are installed on both sides of the conveying mechanism (4), the support plate (2) is fixedly connected between the two side plates (41), the positioning device (1) is fixedly connected to the side plates (41), the limiting device (3) is fixedly connected to the inner side of the side plates (41) and is located above the support plate (2), a diffusion sheet (6) is placed on the support plate (2), the positioning device (1) is abuttingly connected to the diffusion sheet (6), the thickness measuring device (7) is slidably connected to the limiting device (3) and is located above the diffusion sheet (6), and the positioning device (1), the limiting device (3) and the thickness measuring device (7) are all connected to a controller for communication.

2. A diffuser measuring device according to claim 1, characterized in that: The thickness measuring device (7) comprises: a mounting frame (71), a slider (72), a driving motor (73), a laser thickness gauge (74), a rack (75), a gear (76) and a lead screw (77); both sides of the mounting frame (71) are slidably connected to the side of the limiting device (3); the lead screw (77) is arranged at the front end of the mounting frame (71); the driving motor (73) is located on the side of the mounting frame (71) and is connected to the lead screw (77); the slider (72) is slidably connected to the lead screw (77); the laser thickness gauge (74) is located below the mounting frame (71) and is detachably connected to the slider (72); the rack (75) is fixedly connected to the inside of the side of the mounting frame (71); and the gear (76) is connected to the limiting device (3) and is rollingly connected to the rack (75).

3. The diffuser measuring device according to claim 1, characterized in that: The positioning device (1) comprises: a first push rod (11), a second push rod (12), a laser rangefinder (13), a pressure sensor (14) and a push block (16); one end of the first push rod (11) is fixedly connected to a side plate (41) away from the limiting device (3); the first push rod (11) is located directly above the support plate (2); one end of the second push rod (12) is fixedly connected to the side plate (41); the second push rod (12) is located above the support plate (2) and is perpendicular to the first push rod (11); the telescopic ends of the first push rod (11) and the second push rod (12) are fixedly connected to the push block (16); the push block (16) is abuttingly connected to the diffuser (6); the laser rangefinder (13) is fixedly connected to the push block (16); and the pressure sensor (14) is installed on the side of the push block (16) that contacts the diffuser (6).

4. The diffuser measuring device according to claim 1, characterized in that: The limiting device (3) comprises a baffle (31) and a limiting block (32); the baffle (31) is fixedly connected to the inner side of the side plate (41) and is located above the support plate (2); and the limiting block (32) is slidably connected to the baffle (31).

5. The diffuser measuring device according to claim 1, characterized in that: It also includes a sorting device (5), which is supported and mounted on the side plate (41) and is located above the conveying mechanism (4), and the sorting device (5) is located behind the support plate (2).

6. The diffuser measuring device according to claim 5, characterized in that: The sorting device (5) comprises: a support frame (51), a motor (52), a transmission shaft (53), a material dividing plate (54) and a partition plate (55), wherein two ends of the support frame (51) are respectively fixedly connected to the top of the side plates (41) on both sides, the motor (52) is mounted on the support frame (51), the output end of the motor (52) is connected to the transmission shaft (53), the other end of the transmission shaft (53) is connected to the material dividing plate (54), and the partition plate (55) is fixedly connected below the support frame (51).

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