A hardness testing device and method for glass production

Abstract

The application discloses a hardness testing device and method for glass production, and relates to the technical field of glass testing, which comprises a base, a supporting assembly, a driving part, an outer cylinder, a scratch assembly and a plurality of mineral rod members; the two ends of the outer cylinder are rotatably arranged on the two supporting assemblies through transmission shafts; the driving part is installed on any one of the supporting assemblies, and each side wall of the outer cylinder is provided with a sliding groove; the scratch assembly is coaxially arranged in the outer cylinder, and comprises a connecting block and a plurality of sliding seats; a telescopic part is further arranged in the outer cylinder, and the output end of the telescopic part is connected with the connecting block; the sliding seat is provided with a mounting hole, and the mineral rod member is installed in the mounting hole; the positions of the mounting holes in the plurality of sliding seats are different; the technical effect that the scratch paths of the plurality of mineral rod members are not coincident is achieved, the excessive damage of the glass caused by repeated scratching at the same position is avoided, and the accuracy and reliability of the test data are improved.

Description

Technical Field

[0001] This invention relates to the field of glass testing technology, and in particular to a hardness testing device and method for glass production. Background Technology

[0002] With the booming development of the consumer electronics market, products such as mobile phone back panels and smartwatch back panels are becoming increasingly common in people's lives. Today, consumers' demands for these electronic products are no longer limited to functionality; they also place extremely high standards on appearance design and durability. As an important component of product appearance, mobile phone and smartwatch back panels not only need to possess a stylish and attractive texture to attract consumers' attention, but also need sufficient hardness to withstand various scratches and wear that may occur during daily use. For example, when carrying and using a mobile phone, the back panel may come into contact with and rub against hard objects such as keys and coins; the back panel of a smartwatch is also at risk of scratches due to frequent collisions with objects such as tabletops. If the glass is not hard enough, scratches, wear, or even cracks can easily occur, seriously affecting the product's appearance and performance, thereby reducing the consumer experience and the product's lifespan. Therefore, accurate and reliable testing of glass hardness is of paramount importance for glass manufacturers to control product quality and enhance product competitiveness.

[0003] In the existing technology, there are various methods for testing the hardness of glass. Among them, the most common method is to use the Mohs hardness test principle and use testing tools of different hardness to perform scratch tests on the glass surface. For example, Chinese invention patent with authorization announcement number CN118777044B discloses a glass surface hardness testing device. This device uses a rotating automatic switching testing mechanism in conjunction with a lifting and pressing mechanism to integrate the downward movement of the rotating automatic switching testing mechanism with the pressing of the glass. Then, the rotating automatic switching testing mechanism automatically switches and moves multiple mineral rods for scratch testing, which improves the efficiency and convenience of glass scratch hardness testing and ensures the consistency of the pressure applied by multiple mineral rods to the glass during the scratching process.

[0004] However, during the use of the above device, as multiple mineral rods successively scratch the glass, the scratching paths of the multiple mineral rods overlap. According to common knowledge, repeatedly scratching the same position may cause excessive damage to the glass, thereby affecting the accuracy and reliability of the test data. Summary of the Invention

[0005] This application provides a hardness testing device and method for glass production, which solves the technical problem in the prior art where the scratching paths of multiple mineral rods overlap, and repeated scratching at the same position may cause excessive damage to the glass, thus affecting the accuracy and reliability of the test data. The application achieves the technical effect of making the scratching paths of multiple mineral rods non-overlapping, avoiding excessive damage to the glass caused by repeated scratching at the same position, and improving the accuracy and reliability of the test data.

[0006] This application provides a hardness testing device for glass production, including a base, support components, a drive component, an outer cylinder, a scratch component, and multiple mineral rods. Two support components are symmetrically arranged on the base, and the two ends of the outer cylinder are rotatably mounted on the two support components via drive shafts. The support components have a lifting function, enabling the outer cylinder to move up and down. The drive component is mounted on either support component, and its output shaft is coaxially connected to the corresponding drive shaft. The outer cylinder is a hollow polygonal prism, and each side wall of the outer cylinder has a sliding groove. The scratch component... The scratching assembly is coaxially arranged inside the outer cylinder and includes a connecting block and multiple sliding seats. The number of sliding seats and sliding grooves are the same and correspond one-to-one. The connecting block is a multi-faceted prism, and the number of edges of the connecting block and the outer cylinder are the same. The multiple sliding seats are respectively installed on multiple side walls of the connecting block, and the sliding seats extend out of the corresponding sliding grooves. The outer cylinder is also provided with a telescopic component, and the output end of the telescopic component is connected to the connecting block. The sliding seats are provided with mounting holes, which are perpendicular to the corresponding side wall of the outer cylinder. The mineral rod material is installed in the mounting holes. The mounting holes on the multiple sliding seats are located in different positions.

[0007] Preferably, the support assembly includes a lifting seat and a mounting plate, with the drive shaft rotatably mounted on the mounting plate, the mounting plate positioned on top of the lifting seat, and the bottom of the lifting seat mounted on a base.

[0008] Preferably, the base is divided into a placement area, which is located below the outer cylinder; the placement area may be marked with multiple marking lines, the number of marking lines being the same as the number of sliding seats and corresponding one-to-one, and the marking lines and the sliding trajectories of the mineral rods on the corresponding sliding seats coincide in the vertical direction.

[0009] Preferably, the base is hollow inside and the placement area is densely covered with air holes; an air pumping component is provided inside the base, with the air outlet of the air pumping component extending out of the base and the air inlet of the air pumping component located inside the base.

[0010] Preferably, the sliding seat has limiting grooves on both sides, which engage with the sides of the sliding groove, allowing the sliding seat to slide smoothly along the sliding groove.

[0011] Preferably, the connecting block is composed of multiple connecting units, each corresponding to a sliding seat; the connecting block composed of multiple connecting units is centrally connected, and the output end of the telescopic component can extend into the center of the connecting block; each connecting unit has a locking groove, and the locking grooves on multiple connecting units can connect to form an annular space; a locking block is rotatably provided at the bottom of the output end of the telescopic component, and the locking block is slidably disposed in the corresponding locking groove; an internal magnetic block is provided inside the outer cylinder, and the internal magnetic block is located at the end of the connecting block away from the telescopic component; the connecting unit is made of ferromagnetic metal, and the internal magnetic block can be made of permanent magnet.

[0012] Preferably, the sliding seat includes a seat shell, a seat core, and a sealing sleeve; the limiting groove is formed on the seat shell, and the mounting hole is formed on the seat core; the seat shell is hollow inside, and the end of the seat shell away from the connecting unit is open, and the sealing sleeve is disposed on the opening of the seat shell; the seat core is slidably disposed inside the seat shell along the outer cylinder, and the seat core is in contact with the side wall of the seat shell; the sealing sleeve has a circular opening at its center, the opening of the mounting hole is located inside the circular opening on the sealing sleeve, and the circular opening of the sealing sleeve is located inside the opening of the seat shell; the length of the seat core is less than the length of the internal space of the seat shell, so that when the seat core abuts against the sealing sleeve, there is a gap between the end of the seat core away from the sealing sleeve and the inner wall of the end of the seat shell away from the sealing sleeve.

[0013] Preferably, a counterweight is placed at the end of the core away from the encapsulation sleeve, and when the core abuts against the encapsulation sleeve, there is a gap between the end of the counterweight away from the encapsulation sleeve and the inner wall of the end of the housing away from the encapsulation sleeve.

[0014] Preferably, there are multiple counterweights with different masses, and each counterweight corresponds to a mineral rod. The masses of the counterweights corresponding to the mineral rods gradually increase from low to high hardness.

[0015] A method for testing the hardness of glass in production, accompanied by the hardness testing apparatus for glass production as described above, comprising: S1: Select mineral rods of different hardness according to the test requirements, and install multiple mineral rods into the mounting holes of the sliding seat by means of threaded connection or snap-fit ​​connection. S2: Place the glass to be tested on the placement area of ​​the base. The driving component drives the outer cylinder to rotate, so that the mineral rod with the least hardness on the outer cylinder is vertically downward. The support component drives the outer cylinder to move down so that the mineral rod with the least hardness on the outer cylinder contacts the glass. S3: The telescopic component drives the sliding seat to slide, causing the mineral rod with the least hardness on the outer cylinder to scratch the glass. The staff observes whether clear and continuous scratches are made. S4: If no clear and continuous scratches are made, control the outer cylinder to move upward, drive the outer cylinder to rotate, so that the mineral rod material with the second lowest hardness on the outer cylinder is vertically downward, and the support component drives the outer cylinder to move downward so that the mineral rod material with the second lowest hardness on the outer cylinder touches the glass. S5: Repeat steps S3 and S4 until the staff observes clear, continuous scratches on the glass. The hardness of the glass corresponds to the hardness of the mineral rod material during the previous sliding process that produced the clear, continuous scratches.

[0016] One or more technical solutions provided in this application have at least the following technical effects or advantages: Hardness is tested by scratching glass with mineral rods of different hardness. A support assembly is installed on the base, and the outer cylinder is rotatably mounted on the support assembly at both ends via a drive shaft. A drive component drives the outer cylinder to rotate. The outer cylinder is a polygonal prism with a scratching assembly inside. A telescopic component drives the connecting block to slide, allowing the mineral rods mounted on the sliding seats on its side walls to extend. Multiple mineral rods of different hardness are installed so that the scratching paths are parallel and do not overlap, with a spacing of not less than 5 mm. This solves the technical problem in the prior art where the scratching paths of multiple mineral rods overlap, and repeated scratching at the same position may cause excessive damage to the glass, thus affecting the accuracy and reliability of the test data. The technical effect of achieving non-overlapping scratching paths of multiple mineral rods is to avoid excessive damage to the glass caused by repeated scratching at the same position, thereby improving the accuracy and reliability of the test data. Attached Figure Description

[0017] Figure 1 This is an overall schematic diagram of the hardness testing device for glass production according to the present invention; Figure 2 This is a schematic diagram of the outer cylinder of the hardness testing device for glass production according to the present invention; Figure 3 This is a schematic diagram showing the position of the telescopic component of the hardness testing device for glass production according to the present invention; Figure 4 This is a schematic diagram of the scratch component structure of the hardness testing device for glass production according to the present invention; Figure 5 A comparative diagram showing the positions of mounting holes on multiple sliding seats of the glass production hardness testing device of the present invention; Figure 6 This is a schematic diagram of the base structure of the hardness testing device for glass production according to the present invention; Figure 7 This is a schematic diagram of the connecting block of the glass production hardness testing device of the present invention; Figure 8 This is a schematic diagram of the connection unit of the hardness testing device for glass production according to the present invention; Figure 9This is a schematic diagram showing the position of the built-in magnetic block in the hardness testing device for glass production of the present invention; Figure 10 This is a schematic diagram of the clamping block position of the glass production hardness testing device of the present invention; Figure 11 This is a schematic diagram of the card block structure of the hardness testing device for glass production according to the present invention; Figure 12 This is a schematic diagram of the sliding seat structure of the hardness testing device for glass production according to the present invention; Figure 13 This is a schematic diagram of the packaging sleeve for the hardness testing device used in glass production according to the present invention.

[0018] In the diagram: 100, base; 110, placement area; 120, pumping component; 200, support assembly; 210, lifting seat; 220, mounting plate; 300, drive component; 400, outer cylinder; 410, drive shaft; 420, sliding groove; 430, telescopic component; 440, built-in magnet; 450, locking block; 500, scratch assembly; 510, connecting block; 511, connecting unit; 512, engaging groove; 520, sliding seat; 521, mounting hole; 522, limiting groove; 523, seat shell; 524, seat core; 525, encapsulation sleeve; 526, counterweight; 600, mineral rod material. Detailed Implementation

[0019] To facilitate understanding of the present invention, a more complete description of this application will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the invention. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to enable a more thorough and complete understanding of the disclosure of the present invention.

[0020] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] Example: Figures 1 to 5 As shown, the hardness testing device for glass production in this application includes a base 100, a support component 200, a drive component 300, an outer cylinder 400, a scratch component 500, multiple mineral rods 600, a power component, and a control unit.

[0023] The power component is used to supply power for the operation of the testing device, preferably an AC power supply or a battery; the control unit is used to control the coordinated operation of the various components of the testing device, preferably a programmable logic controller; both are existing technologies and will not be described in detail here.

[0024] Two support components 200 are symmetrically arranged on the base 100, and the two ends of the outer cylinder 400 are respectively rotatably mounted on the two support components 200 via the drive shaft 410.

[0025] It should be noted that the support component 200 has a lifting function, which can drive the outer cylinder 400 to move up and down.

[0026] Two drive shafts 410 are coaxially arranged on both sides of the outer cylinder 400, and the drive component 300 is installed on any one of the support components 200. The output shaft of the drive component 300 is coaxially connected to the corresponding drive shaft 410, so that the drive component 300 can drive the outer cylinder 400 to rotate.

[0027] The outer cylinder 400 is a hollow polygonal prism, and each side wall of the outer cylinder 400 is provided with a sliding groove 420.

[0028] The axis of the outer cylinder 400 is parallel to the upper surface of the base 100.

[0029] Specifically, such as Figure 1 As shown, the support assembly 200 includes a lifting seat 210 and a mounting plate 220. The drive shaft 410 is rotatably mounted on the mounting plate 220 via a bearing. The mounting plate 220 is located on the top of the lifting seat 210, and the bottom of the lifting seat 210 is mounted on the base 100.

[0030] The lifting seat 210 can be a lifting cylinder or an electric lifting rod.

[0031] The scratching assembly 500 is coaxially disposed inside the outer cylinder 400. The scratching assembly 500 includes a connecting block 510 and multiple sliding seats 520.

[0032] The number of sliding seats 520 and sliding grooves 420 are the same and correspond one-to-one. The connecting block 510 is a multi-faceted prism, and the number of edges of the connecting block 510 and the outer cylinder 400 are the same.

[0033] Specifically, such as Figure 2 and Figure 4 As shown, both the outer cylinder 400 and the connecting block 510 are straight prisms (the side edges of a polygonal prism are perpendicular to the bottom surface).

[0034] Multiple sliding seats 520 are respectively installed on multiple side walls of the connecting block 510, and the sliding seats 520 extend out of the corresponding sliding grooves 420.

[0035] The outer cylinder 400 is also equipped with a telescopic component 430. The output end of the telescopic component 430 is connected to the connecting block 510, so that the telescopic component 430 can drive the connecting block 510 to slide inside the outer cylinder 400.

[0036] The telescopic component 430 is arranged parallel to the axis of the outer cylinder 400, and the telescopic component 430 can be a telescopic cylinder or an electric telescopic rod.

[0037] It should be noted that the shape of the space inside the outer cylinder 400 can be a corresponding polygonal prism shape, and the connecting block 510 fits against the inner wall of the outer cylinder 400, so that the sliding seat 520 can slide stably along the sliding groove 420, and the sliding path length of the sliding seat 520 can be equal to the length of the sliding groove 420.

[0038] The sliding seat 520 has a mounting hole 521, which is perpendicular to the side wall of the corresponding outer cylinder 400. The mineral rod material 600 is installed in the mounting hole 521.

[0039] The multiple mineral rods 600 are of the same length, so that after the mineral rods 600 are installed in the corresponding mounting holes 521, the length of the mineral rods 600 extending out of the mounting holes 521 is the same.

[0040] It should be noted that the mineral rod 600 can be installed in the mounting hole 521 by means of threaded connection or snap-fit ​​connection. Threaded connection or snap-fit ​​connection is a common connection method in the prior art, and will not be described in detail here.

[0041] It should be noted that there can be multiple mineral rods 600, and the hardness of the multiple mineral rods 600 is different. For example, multiple mineral rods 600 with hardness from 1 to 10 can be set. The materials of the mineral rods 600 in the order of hardness from 1 to 10 can be talc, gypsum, calcite, fluorite, apatite, orthoclase, quartz, topaz, corundum and diamond.

[0042] like Figure 5 As shown, the mounting holes 521 on the multiple sliding seats 520 are located at different positions, so that the sliding trajectories of the multiple mineral rods 600 on the glass are parallel and do not overlap, and the distance between two adjacent sliding trajectories is not less than 5 mm.

[0043] It should be noted that the spacing between two adjacent trajectories can be selected according to actual needs, which will not be elaborated here.

[0044] Specifically, the positions of the mounting holes 521 on the multiple sliding seats 520 vary radially along the outer cylinder 400.

[0045] It should be noted that the size of the sliding seat 520 in this application can be selected according to actual needs, and will not be described in detail here.

[0046] Optionally, a placement area 110 is defined on the base 100, and the placement area 110 is located below the outer cylinder 400.

[0047] Multiple marking lines can be marked in the placement area 110. The number of marking lines is the same as that of the sliding seat 520 and they correspond one-to-one. The marking lines and the sliding trajectories of the mineral rod material 600 on the corresponding sliding seat 520 coincide in the vertical direction.

[0048] It should be noted that the transmission method of the drive component 300 in this application can also be belt drive or gear drive, and is not limited to the direct drive method of the drive component 300.

[0049] Specifically, the outer cylinder 400 can be a square prism, pentagonal prism, or hexagonal prism. According to common knowledge, the hardness of glass is generally 5-7. A suitable mineral rod material 600 can be selected based on this value, without having to try all mineral rod materials 600 of all hardnesses. For example, if a square prism outer cylinder 400 can accommodate four mineral rod materials 600, then the hardness of the four mineral rod materials 600 installed in sequence (clockwise or counterclockwise) can be 5, 6, 7, and 8 respectively. For glass products with known application scenarios and common hardness ranges, an initial test hardness based on experience can be preset instead of starting from the lowest hardness each time.

[0050] The glass hardness testing device according to the embodiments of this application operates as follows in actual operation: S1: According to the test requirements, select mineral rods 600 with different hardness and install multiple mineral rods 600 in the mounting holes 521 of the sliding seat 520 by means of threaded connection or snap-fit ​​connection. S2: Place the glass to be tested on the placement area 110 of the base 100. The driving component 300 drives the outer cylinder 400 to rotate, so that the mineral rod material 600 with the lowest hardness on the outer cylinder 400 is vertically downward. The lifting seat 210 drives the outer cylinder 400 to move down so that the mineral rod material 600 with the lowest hardness on the outer cylinder 400 abuts against the glass. S3: The telescopic component 430 drives the sliding seat 520 to slide, causing the mineral rod material 600 with the lowest hardness on the outer cylinder 400 to scratch on the glass. The staff observes whether clear and continuous scratches are made. S4: If no clear and continuous scratches are made, control the outer cylinder 400 to move upward, drive the drive component 300 to drive the outer cylinder 400 to rotate, so that the mineral rod material 600 with the second lowest hardness on the outer cylinder 400 is vertically downward, and the lifting seat 210 drives the outer cylinder 400 to move downward so that the mineral rod material 600 with the second lowest hardness on the outer cylinder 400 abuts against the glass. S5: Repeat steps S3 and S4 until the staff observes clear and continuous scratches on the glass. The hardness of the glass corresponds to the hardness of the mineral rod material at 600 during the previous sliding process when the clear and continuous scratches were made.

[0051] Optionally, a laser measuring instrument (not shown in the figure) may be installed on the base 100. The laser measuring instrument can be installed on the base 100 via a mounting bracket (not shown in the figure), and the laser measuring instrument and the mounting bracket are staggered from the outer cylinder 400, the scratching assembly 500 and the mineral rod material 600. The laser measuring instrument can be used to test the thickness of the glass, thereby better assisting the use of the device of this application. The laser measuring instrument and its installation method are common structures in the prior art and will not be described in detail here.

[0052] It should be noted that this application uses a mineral rod 600 perpendicular to the glass to make scratches for testing. If different angles are required for the contact test, the tilt angle between the mounting hole 521 and the outer cylinder 400 can be changed. Of course, the tilt angle between the mounting hole 521 and the outer cylinder 400 can also be designed to be adjustable. For example, the sliding seat 520 can be hinged to the connecting block 510, and then a locking element (not shown in the figure) can be set for locking. This solution is a common solution in the prior art and will not be described in detail here.

[0053] It should be noted that if the hardest mineral rod 600 on the outer cylinder 400 can produce clear and continuous scratches, the operator can replace it with another mineral rod 600 that is less hard and test again. If all the mineral rods 600 installed on the outer cylinder 400 can produce clear and continuous scratches, then all the mineral rods 600 installed on the outer cylinder 400 should be replaced with mineral rods 600 that are less hard and test again. This method of use can be adjusted according to the actual situation, and will not be elaborated here.

[0054] Understandably, in existing technologies, repeated scratching at the same location on the glass can lead to data distortion. However, in this application's solution, the mounting holes 521 on the multiple sliding seats 520 are located in different positions, ensuring that the scratching trajectories of the multiple mineral rods 600 on the glass do not overlap, and the distance between two adjacent scratching trajectories is no less than 5 millimeters. This avoids excessive damage to the glass caused by repeated scratching at the same location, thus ensuring the accuracy and reliability of the test data and more realistically reflecting the hardness of the glass.

[0055] like Figure 6 As shown, in another embodiment of this application, the base 100 is hollow inside, and the placement area 110 is densely covered with air holes.

[0056] A pumping component 120 is provided inside the base 100. The outlet end of the pumping component 120 extends out of the base 100, and the inlet end of the pumping component 120 is located inside the base 100.

[0057] The pumping component 120 can be an air pump or a fan.

[0058] It should be noted that the number, distribution, and diameter of pores are selected according to actual needs, and will not be detailed here.

[0059] It is understandable that by continuously absorbing the internal space of the base 100 through the air pumping component 120, the internal space of the base 100 is in a negative pressure state. After the glass is placed in the placement area 110, the glass can be adsorbed by the negative pressure, and the negative pressure can play a flexible positioning role.

[0060] It should be noted that for any vents not covered by the glass, A4 paper, plastic sheets, or similar materials can be used to cover them as much as possible.

[0061] Understandably, negative pressure adsorption can more tightly and stably fix the glass in the placement area 110, reducing the possibility of displacement of the glass due to vibration or external force generated during the test, ensuring the accuracy of the glass position during the test, and thus improving the reliability of the hardness test results. Negative pressure adsorption is also more adaptable to different glass sizes. Regardless of the glass size, as long as it is placed in the placement area 110, negative pressure can adsorb it. Furthermore, when the glass does not completely cover the placement area 110, the uncovered pores can be covered with A4 paper, plastic sheets, or other materials. This ensures the effectiveness of negative pressure adsorption while flexibly addressing the testing needs of various glass sizes, expanding the applicability of the device. Negative pressure adsorption is a flexible positioning method, unlike some rigid clamps that cause damage such as squeezing or scratching to the glass edges or surface. While ensuring stable glass positioning, it maximizes the protection of the glass's integrity, especially for glass with high surface quality requirements or that is fragile.

[0062] Furthermore, such as Figures 7 to 11 As shown, the connecting block 510 is composed of multiple connecting units 511, and each connecting unit 511 corresponds to a sliding seat 520.

[0063] The connecting block 510, composed of multiple connecting units 511, is centrally connected, and the output end of the telescopic component 430 can extend into the center of the connecting block 510.

[0064] The connecting unit 511 has a locking groove 512, and the locking grooves 512 on multiple connecting units 511 can be connected to form an annular space.

[0065] The bottom of the output end of the telescopic component 430 is rotatably provided with a locking block 450, and the locking block 450 is slidably disposed in the corresponding locking groove 512.

[0066] Specifically, the output end of the telescopic component 430 may be coaxially provided with an annular slide rail (not shown in the figure), and the locking block 450 is slidably disposed in the slide rail. As the telescopic component 430 rotates, the locking block 450 is always located at the bottom of the output end of the telescopic component 430 under the action of its own gravity.

[0067] It should be noted that the density of the card block 450 can be selected according to actual needs, such as the material of the card block 450 being stainless steel; the connection method between the output end of the telescopic component 430 and the slide rail of the card block 450 is a common structure in the prior art, and will not be described in detail here.

[0068] It should be noted that the size of the locking block 450 is no larger than the size of the locking groove 512, and the locking block 450 is located in any one of the locking grooves 512. Multiple locking grooves 512 can be combined to form an annular space. As the outer cylinder 400 rotates, the locking block 450 is always locked in the locking groove 512 located at the bottom.

[0069] like Figure 9 As shown, an internal magnetic block 440 is provided inside the outer cylinder 400, and the internal magnetic block 440 is located at the end of the connecting block 510 away from the telescopic component 430.

[0070] The connecting unit 511 is made of ferromagnetic metal, such as iron.

[0071] The built-in magnet 440 can be made of a permanent magnet.

[0072] Optionally, such as Figure 11 As shown, the two sides of the card block 450 can be set as arc surfaces, so that even if there is an error in the alignment of the engagement slots 512 of the multiple connecting units 511, the card block 450 can still be guided to slide.

[0073] It should be noted that the card block 450 can be made of a material that does not interact with the built-in magnet 440.

[0074] Optionally, the connecting unit 511 and the corresponding sliding seat 520 can be manufactured as a single piece.

[0075] like Figure 7 As shown, limiting grooves 522 are provided on both sides of the sliding seat 520. The limiting grooves 522 are engaged on both sides of the sliding groove 420, so that the sliding seat 520 can slide smoothly along the sliding groove 420.

[0076] The limiting groove 522 is coaxially arranged with the outer cylinder 400.

[0077] It is understandable that by controlling the extension, retraction, and rotation of the telescopic component 430, combined with the engagement of the locking block 450 and the locking slot 512, and the effect of the built-in magnet 440 on the connecting unit 511, the movement of each connecting unit 511 and its corresponding sliding seat 520 can be precisely controlled. The switching of the locking block 450 between different locking slots 512 and the assistance of the built-in magnet 440 enable the sliding of only one sliding seat 520 (the sliding seat 520 located at the bottom) at a time.

[0078] Specifically, only the bottom mineral rod 600 scratches the glass at a time, avoiding the complex effects of multiple mineral rods 600 acting simultaneously. This allows for a more accurate assessment of glass hardness based on the scratches from a single mineral rod 600, resulting in test results that more accurately reflect the glass's true hardness characteristics. It also reduces interference and instability that could arise from the simultaneous movement of multiple mineral rods 600, making the scratching process of a single mineral rod 600 more stable. This reduces the adverse effects of vibration and friction caused by the simultaneous movement of multiple components on scratch formation, thereby improving the stability and reliability of the testing process. Furthermore, it reduces the number of times the mineral rod 600 slides, preventing breakage of some mineral rods 600 due to repeated sliding.

[0079] Three typical consumer electronics glass samples were selected for testing, with the following parameters: Sample 1: Ordinary tempered glass for the back panel of a mobile phone, with a thickness of 0.7 mm; Sample 2: Cover glass for a smartwatch, 0.5 mm thick; Sample 3: Ordinary float glass, 1.0 mm thick.

[0080] The hardness testing device of this embodiment was used to test the hardness of the above three typical consumer electronic glass samples. The outer cylinder 400 of the hardness testing device was set to be a hexagonal prism, and the mineral rod material 600 used was fluorite (hardness 4), apatite (hardness 5), orthoclase (hardness 6), quartz (hardness 7), topaz (hardness 8), and corundum (hardness 9). The spacing of the corresponding scratching trajectory of the mineral rod material 600 was 5 mm.

[0081] Three typical consumer electronics glass samples were selected for hardness testing as follows: During the scratch test, the quartz mineral rod 600 of sample 1 showed clear and continuous scratches for the first time, indicating that the hardness of sample 1 is 6. During the scratch test, the quartz mineral rod 600 of sample 2 showed clear and continuous scratches for the first time, indicating that the hardness of sample 2 is 6. During the scratch test, the orthoclase mineral rod 600 of sample 2 showed clear and continuous scratches for the first time, indicating that the hardness of sample 2 is 5.

[0082] During the hardness test of three typical consumer electronics glass samples, it is not necessary for the manual holding of a mineral rod to scratch the glass. This avoids uneven force and non-straight lines caused by human factors, and ensures that the external force factors are consistent for multiple tests of different samples, avoiding different forces applied by different staff due to different hand feel.

[0083] Furthermore, such as Figure 12 and Figure 13 As shown, the sliding seat 520 includes a seat housing 523, a seat core 524, and a packaging sleeve 525.

[0084] The limiting groove 522 is formed on the housing 523, and the mounting hole 521 is formed on the core 524.

[0085] The housing 523 is hollow inside, and the end of the housing 523 away from the connecting unit 511 is open, and the encapsulation sleeve 525 is disposed on the opening of the housing 523.

[0086] The core 524 is radially slidably disposed inside the housing 523 along the outer cylinder 400, and the core 524 is in contact with the side wall of the housing 523.

[0087] Optionally, the cross-section of the core 524 is not circular, so that the core 524 will not rotate within the housing 523. For example, if the core 524 is a cube, the space inside the housing 523 is also set to a corresponding cube.

[0088] The encapsulation sleeve 525 has a circular opening at its center. The opening of the mounting hole 521 is located inside the circular opening on the encapsulation sleeve 525, and the circular opening of the encapsulation sleeve 525 is located inside the opening of the housing 523. This allows the encapsulation sleeve 525 to prevent the core 524 from coming out of the housing 523 while not obstructing the installation of the mineral rod material 600.

[0089] Specifically, the encapsulation sleeve 525 can be installed on the opening of the housing 523 by means of threaded connection or snap-fit ​​connection.

[0090] The length of the core 524 is less than the length of the internal space of the housing 523, so that when the core 524 abuts against the encapsulation sleeve 525, there is a gap between the end of the core 524 away from the encapsulation sleeve 525 and the inner wall of the end of the housing 523 away from the encapsulation sleeve 525.

[0091] The mineral rod material 600 is marked with a hardness value.

[0092] Optionally, such as Figure 12As shown, a counterweight 526 is placed at the end of the core 524 away from the encapsulation sleeve 525, and when the core 524 abuts against the encapsulation sleeve 525, there is a gap between the end of the counterweight 526 away from the encapsulation sleeve 525 and the inner wall of the end of the housing 523 away from the encapsulation sleeve 525.

[0093] It should be noted that the length of the internal space of the housing 523 can be set according to actual needs. For example, when the core 524 abuts against the encapsulation sleeve 525, there is a gap between the end of the counterweight 526 away from the encapsulation sleeve 525 and the inner wall of the end of the housing 523 away from the encapsulation sleeve 525. The length of the gap can be 2 cm to 5 cm. The specific value is selected according to actual needs and will not be described in detail here.

[0094] Specifically, the length directions of the housing 523, the core 524, the first gap, and the second gap are all along the radial direction of the outer cylinder 400.

[0095] Optionally, there may be multiple counterweights 526, each with a different mass, and each counterweight 526 may correspond one-to-one with a mineral rod 600. The mass of the counterweights 526 corresponding to the mineral rods 600 increases gradually as the hardness of the mineral rods 600 increases.

[0096] Optionally, the housing 523 in this application may be made of a transparent material, such as acrylic, and the sidewall of the counterweight 526 may indicate the corresponding mass or a mark corresponding to the mineral rod 600.

[0097] Optionally, the counterweight 526 may be made of lead.

[0098] Understandably, in the initial state, multiple connecting units 511 are magnetically attracted to the built-in magnetic block 440. At this time, the telescopic component 430 is in an extended state, and the engaging slots 512 on the multiple connecting units 511 are connected. When a sliding operation is performed, for the bottom sliding seat 520, the counterweight block 526 will generate a vertically downward force on the seat core 524 due to its own weight. This force is transmitted to the mineral rod material 600 through the seat core 524, thereby applying a relatively stable force to the sliding operation. The mineral rod material 600 with different hardness corresponds to different masses. The counterweight 526 ensures that different pressures are required when the mineral rods 600 with different hardness are scratched to guarantee the accuracy and effectiveness of the test. This can be achieved by adjusting the mass of the counterweight 526, and the counterweight 526 in this embodiment is replaceable. Each time the outer cylinder 400 is rotated to replace the next mineral rod 600 for scratching, the connecting unit 511 needs to be reset so that multiple connecting units 511 are magnetically attracted to the built-in magnetic block 440. Then the outer cylinder 400 rotates and the locking block 450 engages into another locking groove 512.

[0099] By applying a stable force to the sliding motion using the counterweight 526, the pressure exerted by the mineral rod 600 on the glass surface during the test can be kept relatively constant, avoiding pressure variations caused by unevenness on the glass surface. Different hardness mineral rods 600 correspond to counterweights 526 of different masses, making the test conditions more realistic and improving the accuracy of glass hardness testing. This also prevents the application of excessive force to the low-hardness mineral rods 600, which could reduce their lifespan. Furthermore, even if there are slight differences in length among the multiple mineral rods 600, by controlling the descent of the corresponding sliding seat 520, the seat core 524 can slide upwards relative to the sliding seat 520 a certain distance, ensuring that the mineral rod 600 remains in contact with the glass.

[0100] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A hardness testing device for glass production, characterized in that, It includes a base (100), a support assembly (200), a drive component (300), an outer cylinder (400), a scratching assembly (500), and multiple mineral rod components (600). Two support components (200) are symmetrically arranged on the base (100), and the two ends of the outer cylinder (400) are rotatably mounted on the two support components (200) through the transmission shaft (410). The support components (200) have lifting function and can drive the outer cylinder (400) to move up and down. The drive component (300) is mounted on any of the support components (200), and the output shaft of the drive component (300) is coaxially connected to the corresponding transmission shaft (410); The outer cylinder (400) is a hollow polygonal prism, and each side wall of the outer cylinder (400) is provided with a sliding groove (420). The scratching assembly (500) is coaxially disposed inside the outer cylinder (400), and the scratching assembly (500) includes a connecting block (510) and a plurality of sliding seats (520). The number of sliding seats (520) and sliding grooves (420) are the same and correspond one-to-one. The connecting block (510) is a multi-faceted prism, and the number of edges of the connecting block (510) is the same as that of the outer cylinder (400). Multiple sliding seats (520) are respectively installed on multiple side walls of the connecting block (510), and the sliding seats (520) extend out of the corresponding sliding grooves (420). The outer cylinder (400) is also provided with a telescopic component (430), and the output end of the telescopic component (430) is connected to the connecting block (510); The sliding seat (520) has an installation hole (521) which is perpendicular to the side wall of the corresponding outer cylinder (400). The mineral rod material (600) is installed in the installation hole (521). The mounting holes (521) on the multiple sliding seats (520) are located in different positions.

2. The hardness testing device for glass production as described in claim 1, characterized in that, The support assembly (200) includes a lifting seat (210) and a mounting plate (220). A drive shaft (410) is rotatably mounted on the mounting plate (220). The mounting plate (220) is mounted on the top of the lifting seat (210), and the bottom of the lifting seat (210) is mounted on the base (100).

3. The hardness testing device for glass production as described in claim 1, characterized in that, The base (100) is divided into a placement area (110), which is located below the outer cylinder (400); The placement area (110) is marked with multiple marking lines. The number of marking lines is the same as that of the sliding seats (520) and they correspond one-to-one. The marking lines and the sliding trajectories of the mineral rods (600) on the corresponding sliding seats (520) coincide in the vertical direction.

4. The hardness testing device for glass production as described in claim 1, characterized in that, The base (100) is hollow inside, and the placement area (110) is densely covered with air holes; The base (100) is provided with an air pumping component (120), the air outlet of the air pumping component (120) extends out of the base (100), and the air inlet of the air pumping component (120) is located inside the base (100).

5. The glass hardness testing device as described in claim 1, characterized in that, The sliding seat (520) has limit grooves (522) on both sides. The limit grooves (522) engage with both sides of the sliding groove (420), so that the sliding seat (520) can slide smoothly along the sliding groove (420).

6. The hardness testing device for glass production as described in claim 5, characterized in that, The connecting block (510) is composed of multiple connecting units (511), and each connecting unit (511) corresponds to a sliding seat (520). The connection block (510) composed of the multiple connection units (511) is centrally connected, and the output end of the telescopic component (430) extends into the center of the connection block (510); The connecting unit (511) is provided with a locking groove (512), and the locking grooves (512) on multiple connecting units (511) can be connected to form an annular space; The bottom of the output end of the telescopic component (430) is rotatably provided with a locking block (450), and the locking block (450) is slidably disposed in the corresponding locking groove (512); The outer cylinder (400) is provided with an internal magnetic block (440), and the internal magnetic block (440) is located at the end of the connecting block (510) away from the telescopic component (430); The connecting unit (511) is made of ferromagnetic metal, and the built-in magnetic block (440) is made of permanent magnet.

7. The glass production hardness testing device as described in claim 6, characterized in that, The sliding seat (520) includes a seat housing (523), a seat core (524), and a sealing sleeve (525); The limiting groove (522) is formed on the housing (523), and the mounting hole (521) is formed on the core (524); The housing (523) is hollow inside, and the end of the housing (523) away from the connecting unit (511) is open, and the encapsulation sleeve (525) is disposed on the opening of the housing (523); The seat core (524) is radially slidably disposed inside the seat housing (523) along the outer cylinder (400), and the seat core (524) is in contact with the side wall of the seat housing (523); The encapsulation sleeve (525) has a circular opening at its center, the opening of the mounting hole (521) is located inside the circular opening on the encapsulation sleeve (525), and the circular opening of the encapsulation sleeve (525) is located inside the opening of the housing (523). The length of the core (524) is less than the length of the internal space of the housing (523), so that when the core (524) abuts against the encapsulation sleeve (525), there is a gap between the end of the core (524) away from the encapsulation sleeve (525) and the inner wall of the end of the housing (523) away from the encapsulation sleeve (525).

8. The hardness testing device for glass production as described in claim 7, characterized in that, A counterweight (526) is placed at the end of the core (524) away from the encapsulation sleeve (525), and when the core (524) abuts against the encapsulation sleeve (525), there is a gap between the end of the counterweight (526) away from the encapsulation sleeve (525) and the inner wall of the end of the housing (523) away from the encapsulation sleeve (525).

9. The hardness testing device for glass production as described in claim 8, characterized in that, There are multiple counterweights (526), ​​each with a different mass, and each counterweight (526) corresponds one-to-one with a mineral rod (600). The mass of the counterweight (526) corresponding to the mineral rod (600) increases gradually from the hardness of the mineral rod (600) to the hardness of the mineral rod (600).

10. A method for testing the hardness of glass in production, used in conjunction with the hardness testing apparatus for glass production as described in claim 1, characterized in that, The method includes: S1: According to the test requirements, select mineral rods (600) of different hardness and install multiple mineral rods (600) in the mounting holes (521) of the sliding seat (520) by means of threaded connection or snap-fit ​​connection; S2: Place the glass to be tested on the placement area (110) of the base (100), drive the outer cylinder (400) to rotate, so that the mineral rod material (600) with the lowest hardness on the outer cylinder (400) is vertically downward, and support component (200) drives the outer cylinder (400) to move down so that the mineral rod material (600) with the lowest hardness on the outer cylinder (400) abuts against the glass; S3: The telescopic component (430) drives the sliding seat (520) to slide, so that the mineral rod material (600) with the lowest hardness on the outer cylinder (400) scratches on the glass. The staff observes whether clear and continuous scratches are made. S4: If no clear and continuous scratches are made, the outer cylinder (400) is moved upward, the drive component (300) drives the outer cylinder (400) to rotate, so that the mineral rod material (600) with the second lowest hardness on the outer cylinder (400) is vertically downward, and the support component (200) drives the outer cylinder (400) to move downward so that the mineral rod material (600) with the second lowest hardness on the outer cylinder (400) abuts against the glass; S5: Repeat steps S3 and S4 until the staff observes clear and continuous scratches on the glass. The hardness of the glass corresponds to the hardness of the mineral rod material (600) during the previous sliding process that produced the clear and continuous scratches.

Images