A method and device for detecting static deformation of the opening degree of glasses

Abstract

An apparatus for static deformation of the opening degree of glasses, comprising a bracket, a horizontal slide rail, and two sets of moving seats, temple clamping mechanisms, guide wheels, weights and traction lines symmetrically arranged at both ends of the horizontal slide rail. The moving seats are clamped on the horizontal slide rail and are in sliding fit therealong. A turnover shaft is rotatably arranged on the moving seats, and a temple clamping mechanism is arranged on the turnover shaft. The two sets of guide wheels are located on one side of the two sets of moving seats in the direction away from each other. An annular groove is arranged on the outer peripheral surface of the guide wheels. One end of the traction line is fixedly connected to the weight, and the other end passes through the annular groove of the guide wheel and is fixedly connected to the moving seat. Using this apparatus, take the glasses to be detected and make a mark 30 mm away from the end of the temple. Record the distance between the marks on the left and right temples as L1, and then connect the two hinge screws of the glasses and record the distance from this connection line to the center point of the glasses bridge as D1. Then, fix the glasses on the detection apparatus and stretch for one minute, take them off and measure the values of L2 and D2 to determine whether the product is qualified.

Description

Technical Field

[0001] The present invention relates to the technical field of glasses quality inspection, and particularly relates to a method and device for detecting static deformation of glasses opening degree. Background Art

[0002] The glasses opening degree refers to the opening angle between the left and right temple arms of the glasses. During long-term wearing, for some wearers with a wider face, it drives the two temple arms to open excessively (the opening degree becomes larger), and the frame and temple arms are in a static deformation state. For some glasses with poor quality, in this state, the ability to recover deformation is poor, and after taking off the glasses, they cannot return to the original opening degree.

[0003] Therefore, in the glasses quality inspection link, it is necessary to simulate the excessive opening of the temple arms, maintain it for a certain period of time, and then measure its static deformation amount. However, simple detection schemes and devices may lead to inaccurate detection data due to factors such as poor setting of the force application point and force transmission scheme. Summary of the Invention

[0004] In order to solve the above technical deficiencies, the present invention provides a method and device for detecting static deformation of glasses opening degree.

[0005] The technical solution of the present invention: A device for detecting static deformation of glasses opening degree includes a bracket, a horizontal slide rail, and two groups of moving seats, temple arm clamping mechanisms, guide wheels, weights, and traction lines symmetrically arranged at both ends of the horizontal slide rail. The moving seats are clamped on the horizontal slide rail and are in sliding fit along it. A turntable shaft is rotatably arranged on the moving seat, and a temple arm clamping mechanism is arranged on the turntable shaft. The two groups of guide wheels are located on one side of the moving directions of the two groups of moving seats away from each other. A ring groove is arranged on the outer peripheral surface of the guide wheel. One end of the traction line is fixedly connected to the weight, and the other end passes through the ring groove of the guide wheel and is fixedly connected to the moving seat.

[0006] By adopting the above technical solution, the moving seat is driven to slide along the horizontal slide rail by the weight, and the setting of the guide wheel converts the gravity of the falling weight into a horizontal pulling force. The arranged turntable shaft enables the temple arm clamping mechanism to rotate and change the angle along with the turntable shaft when the temple arm expands with the moving seat, adapting to the position angle change of the clamping point and avoiding bending the temple arm.

[0007] A further setting of the present invention: A central axis is arranged on the horizontal slide rail. A traction ring is arranged on the moving seat corresponding to the central axis. The center point of the turntable shaft is located on the central axis. The outer peripheral surface of the ring groove of the guide wheel is tangent to the central axis. The traction line passes through the ring groove and is fixedly connected to the traction ring along the central axis.

[0008] With the above technical solution, components such as the guide wheel, traction wire, moving seat, turnover shaft, and temple clamping mechanism are arranged corresponding to the central axis of the slide rail, the force transmission path is unified, and the generation of component forces is avoided as much as possible. The force of the weight falling is maximally converted into tensile force, making the detection result more accurate.

[0009] Further setting of the present invention: The temple clamping mechanism includes a bolt and a temple slot radially arranged on the turnover shaft. A threaded hole penetrating the temple slot is provided on the turnover shaft, and the bolt is arranged in the threaded hole for threaded cooperation.

[0010] With the above technology, the temple slot is arranged radially along the turnover shaft. When clamping, the temple marking point is at the axis center and corresponds to the central axis.

[0011] Further setting of the present invention: The device further includes a force removal platform arranged vertically below the weight. The force removal platform includes a horizontal support plate, fixed support feet, and a movable extraction block. The horizontal support plate is hinged to the fixed support feet and is placed on the movable extraction block. The movable extraction block is frustum-shaped.

[0012] With the above technical solution, the arranged force removal platform is used to support the weight before the glasses are clamped. After clamping, the movable extraction block is slowly removed, and one end of the horizontal support plate slides down along the slope surface of the movable extraction block to remove the supporting force on the weight. This avoids generating an impact force greater than the weight of the weight instantaneously during the invention hanging process, which affects the detection accuracy.

[0013] A method for detecting the static deformation of the opening degree of glasses, characterized by comprising the following steps

[0014] Step 1: Take the glasses to be detected and make a mark 30 millimeters away from the end of the temple. Record the distance between the marks on the left and right temples as L1, and then connect the two hinge screws of the glasses and record the distance from this connection line to the center point of the glasses bridge as D1;

[0015] Step 2: Fix the glasses on the detection device, insert the left and right temples into the temple slots of the two groups of turnover shafts on the horizontal slide rail respectively, and fix the bolts to the temple marking points;

[0016] Step 3: Add weights to drive the two groups of moving seats to move away from each other, expand the temples and hold for one minute, then remove the weights and take off the glasses;

[0017] Step 4: Measure the glasses again. First, measure the change in the distance between the marks on the left and right temples and record it as L2. Then, adjust the left and right temples back to the L1 position and measure the distance from the connection line to the center point of the glasses bridge as D2;

[0018] Step 5: Judge the deformation amount of the product. If L2 - L1 is less than or equal to 16 millimeters and D1 - D2 is less than or equal to 2 millimeters, it is a qualified product.

[0019] Further setting of the present invention: In step three, select the weight of the weight according to the frame structure; for frameless, semi-framed or frames with frame lines less than or equal to 2 mm by 1 mm, select a 400-gram weight; for frames with frame lines greater than or equal to 2 mm by 1 mm, select a 500-gram weight.

[0020] Further setting of the present invention: In step four, when adjusting the left and right temple arms back to the L1 position, only adjust the temple arms and do not adjust the frame and the center point of the nose bridge.

[0021] Adopt the above scheme to confirm the deformation amount at the nose bridge of the glasses.

[0022] Further setting of the present invention: The detection method is carried out in an environment of room temperature 23°±5°.

[0023] Adopt the above scheme to avoid the influence of temperature on the deformation amount of the glasses. Brief Description of the Drawings

[0024] Figure 1 It is the state diagram of the glasses in step one of the detection method of the present invention;

[0025] Figure 2 It is the state of the glasses in step four of the detection method of the present invention Figure 1 ;

[0026] Figure 3 It is the state of the glasses in step four of the detection method of the present invention Figure 2 ;

[0027] Figure 4 It is the equipment structure of the embodiment of the present invention Figure 1 ;

[0028] Figure 5 It is the equipment structure of the embodiment of the present invention Figure 2 ;

[0029] Figure 6 It is the equipment structure of the embodiment of the present invention Figure 3 ;

[0030] Figure 7 It is the partial enlarged view of the temple arm clamping mechanism of the embodiment of the present invention. Detailed Embodiment

[0031] Such as Figure 1-7As shown in the figure, a device for static deformation of the 9-degree opening of glasses includes a bracket 1, a horizontal slide rail 2, and two sets of moving seats 3, temple clamping mechanisms, guide wheels 4, weights 5, and traction lines 6 symmetrically arranged at both ends of the horizontal slide rail 2. The moving seats 3 are clamped on the horizontal slide rail 2 and are in sliding fit therealong. A turnover shaft 31 is rotatably arranged on the moving seat 3, and a temple clamping mechanism is arranged on the turnover shaft 31. The two sets of guide wheels 4 are located on one side of the two moving seats 3 in the direction of moving away from each other. An annular groove 41 is arranged on the outer peripheral surface of the guide wheel 4. One end of the traction line 6 is fixedly connected to the weight 5, and the other end passes through the annular groove 41 of the guide wheel 4 and is fixedly connected to the moving seat 3.

[0032] The weight 5 is used to drive the moving seat 3 to slide along the horizontal slide rail 2. The arrangement of the guide wheel 4 enables the gravity of the falling weight 5 to be converted into a horizontal pulling force. With the arranged turnover shaft 31, when the temples expand along with the moving seat 3, the temple clamping mechanism can rotate along with the turnover shaft 31 to change the angle and adapt to the position and angle changes of the clamping points, thus avoiding bending the temples.

[0033] A further setting of the present invention: A central axis 21 is arranged on the horizontal slide rail 2. A traction ring 37 is arranged on the moving seat 3 corresponding to the central axis 21. The center point of the turnover shaft 31 is located on the central axis 21. The outer peripheral surface of the annular groove 41 of the guide wheel 4 is tangent to the central axis 21. The traction line 6 passes through the annular groove 41 and is fixedly connected to the traction ring along the central axis 21.

[0034] The components such as the guide wheel 4, the traction line 6, the moving seat 3, the turnover shaft 31, and the temple clamping mechanism are arranged corresponding to the central axis 21 of the slide rail. The force transmission path is unified, and the generation of component forces is avoided as much as possible. The force of the falling weight 5 is maximally converted into a pulling force, making the detection result more accurate.

[0035] The temple clamping mechanism includes a bolt 32 and a temple slot 33 radially arranged on the turnover shaft 31. A threaded hole 34 penetrating through the temple slot 33 is arranged on the turnover shaft 31, and the bolt is arranged in the threaded hole 34 for threaded fit.

[0036] The temple slot 33 is radially arranged along the turnover shaft 31. When clamping, the temple marking point 35 is at the axis center and corresponds to the central axis 21.

[0037] The device further includes a force removal platform arranged vertically below the weight 5. The force removal platform includes a horizontal support plate 71, a fixed support foot 72, and a movable extraction block 73. The horizontal support plate 71 is hinged to the fixed support foot 72 and is placed on the movable extraction block 73. The movable extraction block 73 is in the shape of a frustum of a cone.

[0038] A set withdrawal force platform is used to support the weight 5 before the glasses 9 are clamped. After clamping, the movable sliding block 73 is slowly removed, and one end of the horizontal support plate 71 slides down along the slope surface of the movable sliding block 73 to remove the support force on the weight 5. This can avoid generating an impact force greater than the weight of the weight 5 instantaneously during the invention hanging process, which affects the detection accuracy.

[0039] A method for detecting the static deformation of the opening degree of glasses 9, characterized by comprising the following steps:

[0040] Step 1: Take the glasses 9 to be detected and make a mark at 30 millimeters away from the end of the temple. Record the distance between the marks on the left and right temples as L1, and then connect the two hinge screws of the glasses 9, and record the distance from this connection line to the center point 91 of the nose bridge of the glasses 9 as D1;

[0041] Step 2: Fix the glasses 9 to the detection device, insert the left and right temples into the temple slots 33 of the two groups of turnover shafts 31 on the horizontal slide rails 2 respectively, and fix the bolts 32 to the temple marking points 35;

[0042] Step 3: Add the weight 5, drive the two groups of moving seats 3 to move away from each other, expand the temples and keep for one minute, then remove the weight 5 and take off the glasses 9;

[0043] Step 4: Measure the glasses 9 again. First, measure the change in the distance between the marks on the left and right temples and record it as L2. Then, adjust the left and right temples back to the L1 position and measure the distance from the connection line to the center point 91 of the nose bridge of the glasses 9 as D2;

[0044] Step 5: Judge the product deformation amount. If L2 - L1 is less than or equal to 16 millimeters and D1 - D2 is less than or equal to 2 millimeters, it is a qualified product.

[0045] A further setting of the present invention: In the said step 3, according to the frame structure, select the weight of the weight 5; for frameless, semi-framed or frames with frame lines less than or equal to 2 millimeters by 1 millimeter, select a 400-gram weight 5; for frames with frame lines greater than or equal to 2 millimeters by 1 millimeter, select a 500-gram weight 5.

[0046] A further setting of the present invention: In the said step 4, when adjusting the left and right temples back to the L1 position, only adjust the temples and do not adjust the frame and the center point 91 of the nose bridge.

Claims

1. An apparatus for static deformation of the opening degree of glasses, characterized in that: It includes a bracket, a horizontal slide rail, and two sets of moving seats, temple clamping mechanisms, guide wheels, weights, and traction wires symmetrically arranged at both ends of the horizontal slide rail. The moving seats are clamped on the horizontal slide rail and are in sliding fit therealong. A turnover shaft is rotatably arranged on the moving seat. When the temples expand with the moving seats, the temple clamping mechanisms rotate and change angles along with the turnover shaft. The temple clamping mechanisms are arranged on the turnover shaft. The two sets of guide wheels are located on one side of the two sets of moving seats in the direction of moving away from each other. A ring groove is arranged on the outer peripheral surface of the guide wheel. One end of the traction wire is fixedly connected to the weight, and the other end passes through the ring groove of the guide wheel and is fixedly connected to the moving seat.

2. The device for static deformation of the opening degree of glasses according to claim 1, characterized in that: A central axis is arranged on the horizontal slide rail. A traction ring is arranged on the moving seat corresponding to the central axis. The center point of the turnover shaft is located on the central axis. The outer peripheral surface of the ring groove of the guide wheel is tangent to the central axis. The traction wire passes through the ring groove and is fixedly connected to the traction ring along the central axis.

3. An apparatus for static deformation of the opening degree of glasses according to claim 1, characterized in that: The temple clamping mechanism includes a bolt and a temple slot radially arranged on the turnover shaft. A threaded hole penetrating the temple slot is arranged on the turnover shaft. The bolt is arranged in the threaded hole and is in threaded fit.

4. An apparatus for static deformation of the opening degree of glasses according to claim 1, characterized in that: The device further includes a force removal platform arranged vertically below the weight. The force removal platform includes a horizontal support plate, fixed support feet, and a movable extraction block. The horizontal support plate is hingedly connected to the fixed support feet and is placed on the movable extraction block. The movable extraction block is in a frustum shape.

5. A method for detecting static deformation of the opening degree of glasses, characterized in that: Based on the device for static deformation of the opening degree of glasses according to any one of claims 1-4, the detection method includes the following steps. Step 1: Take the glasses to be detected and make a mark at 30 millimeters away from the end of the temple. Record the distance between the marks on the left and right temples as L1, and then connect the two hinge screws of the glasses and record the distance from this connection line to the center point of the glasses bridge as D1. Step 2: Fix the glasses to the device for static deformation of the opening degree of glasses. Insert the left and right temples into the temple slots of the two sets of turnover shafts on the horizontal slide rail respectively, and fix the bolts to the marked points on the temples. Step 3: Add weights to drive the two sets of moving seats to move away from each other. When the temples expand with the moving seats, the temple clamping mechanisms rotate and change angles along with the turnover shaft. Expand the temples and keep them for one minute, then remove the weights and take off the glasses. Step 4: Measure the glasses again. First, measure the change in the distance between the marks on the left and right temples and record it as L2. Then adjust the left and right temples back to the L1 position and measure the distance from the connection line to the center point of the glasses bridge as D2. Step 5: Judge the deformation amount of the product. If L2 - L1 is less than or equal to 16 millimeters and D1 - D2 is less than or equal to 2 millimeters, it is a qualified product.

6. The detection method for static deformation of the opening degree of glasses according to claim 5, characterized in that: In the said Step 3, select the weight of the weight according to the frame structure. For frameless, semi-framed or frames with frame lines less than or equal to 2 millimeters by 1 millimeter, select a 400-gram weight; for frames with frame lines greater than or equal to 2 millimeters by 1 millimeter, select a 500-gram weight.

7. The detection method for static deformation of the opening degree of glasses according to claim 5, characterized in that: In the said Step 4, when adjusting the left and right temples back to the L1 position, only adjust the temples and do not adjust the frame and the center point of the bridge.

8. A method for detecting static deformation of the opening degree of glasses according to claim 5, characterized in that: The said detection method is carried out in an environment with a room temperature of 23°±5°.

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