Automatic arc adjustment detection device and automatic arc adjustment method for a glass bending and toughening device

Abstract

The present invention relates to an automatic arc adjustment detection device and an automatic arc adjustment method for a glass bending and tempering device. The automatic arc adjustment detection device includes a plurality of arc-shaped automatic detection mechanisms and an arc adjustment template. The plurality of arc-shaped automatic detection mechanisms are installed on a group of flexible shaft roller paths, and the arc adjustment template is provided with an arc-shaped edge having the same shape as the target arc shape. The last flexible shaft roller path on the outlet side of the lower arc forming mechanism of the glass bending and tempering device is correspondingly installed with the automatic arc adjustment detection device to control the arc forming accuracy of the flexible shaft roller path. The automatic arc adjustment method uses the arc-shaped edge of the arc adjustment template as a standard, and through the cooperation of a microswitch and an arc adjustment mechanism in the lower arc forming mechanism, realizes the control of the arc forming accuracy of the last flexible shaft roller path on the outlet side of the lower arc forming mechanism, and adjusts the arc forming of other flexible shaft roller paths based on this. The present invention can improve the arc forming accuracy and arc adjustment efficiency, and improve the automation level of the device.

Description

Technical Field

[0001] The present invention belongs to the technical field of glass toughening equipment, and particularly relates to an automatic arc adjustment detection device and an automatic arc adjustment method for a glass bending and toughening equipment. Background Art

[0002] At present, the lateral arc forming mechanism of large-scale double-curved glass toughening equipment has a structure as Figure 1 shown. The arc adjustment screw rod 4 is driven by the arc adjustment motor 6, and the arc adjustment screw rod 4 drives the elastic member 2 (such as spring round steel or steel plate) to change the arc, and the soft shaft 3 and the roller supported on the elastic member 2 form an arc accordingly. Due to the errors of the mechanical structure, there are slight differences in the arc adjustment positions of each arc forming mechanism, and the number of motors of the arc forming mechanism is relatively large, resulting in complex arc adjustment parameter settings, inconvenient operation, and difficulty in realizing full-automatic arc adjustment and other problems.

[0003] In addition, the arc adjustment methods of double-curved glass toughening equipment are generally relatively primitive. Mainly, manual arc adjustment is carried out by using a template, which is inconvenient to operate, has a low arc adjustment efficiency, and lacks arc adjustment detection means, resulting in inaccurate control of arc adjustment accuracy. Summary of the Invention

[0004] The purpose of the present invention is to provide an automatic arc adjustment detection device and an automatic arc adjustment method for a glass bending and toughening equipment, which use an arc-shaped automatic detection component to accurately control the arc adjustment motor of each arc adjustment mechanism, improve the arc forming accuracy and arc adjustment efficiency, and improve the automation level of the equipment.

[0005] In order to achieve the above purpose, the technical solution adopted by the present invention is: an automatic arc adjustment method for a glass bending and toughening equipment, including the following steps:

[0006] Step 1, select any group of soft shaft roller paths in the lower arc forming mechanism of the glass bending and toughening equipment as the detection roller path, install an arc adjustment template on the lifting frame above the detection roller path, the arc adjustment template has an arc-shaped part adapted to the shape of the target glass arc surface, and then adjust the height of the arc adjustment template through the lifting frame so that the arc top of the arc-shaped part of the arc adjustment template contacts the top of the rolling surface of the middle roller of the lower detection roller path;

[0007] Step 2, install an arc-shaped automatic detection mechanism on the detection roller path, and the installation quantity of the arc-shaped automatic detection mechanism is the same as the quantity of the arc adjustment mechanisms on the detection roller path to realize one-to-one control of the arc adjustment mechanisms;

[0008] Step 3, start each arc adjustment mechanism on the detection roller path in Step 2 to bend and form an arc for the detection roller path;

[0009] Step 4: When the arc-shaped automatic detection mechanism contacts the arc adjustment template, the arc-shaped automatic detection mechanism controls the power device of the associated arc adjustment mechanism to stop operating. The arc adjustment mechanism records its own position information at this time and sends the position information to the controller of the lower arc forming mechanism, indicating that the arc adjustment mechanism has completed the arc adjustment operation. This method is followed until all the arc adjustment mechanisms on the detection roller path have completed the arc adjustment operation;

[0010] Step 5: The controller of the lower arc forming mechanism controls the corresponding arc adjustment mechanisms on other flexible shaft roller paths in the lower arc forming mechanism to move to the corresponding positions according to the position information of each arc adjustment mechanism of the detection roller path received, so that all the flexible shaft roller paths reach the same arc shape as the detection roller path.

[0011] In the above method, the flexible shaft roller path includes a flexible shaft and an elastic member for supporting the flexible shaft, and the microswitch is installed on the elastic member. The elastic member is spring wire or spring steel plate.

[0012] In the above method, the arc-shaped automatic detection mechanism triggers the microswitch through the contact between the set microswitch and the arc adjustment template to control the power device on the arc adjustment mechanism.

[0013] In the above method, the arc adjustment mechanism includes an arc adjustment lead screw and an arc adjustment motor. The arc adjustment motor is fixed on the support cross beam below the flexible shaft roller path. One end of the arc adjustment lead screw is hinged to the elastic member, and the other end is connected to the arc adjustment motor through a transmission mechanism. The arc adjustment motor is used to control the telescopic movement of the arc adjustment lead screw, and the absolute encoder is installed on the arc adjustment motor.

[0014] An automatic arc adjustment detection device for a glass bending and toughening device includes a plurality of arc-shaped automatic detection mechanisms and an arc adjustment template. The arc adjustment template is provided with an arc-shaped edge having the same shape as the target arc. The arc-shaped automatic detection mechanism includes a microswitch and a connecting part. The connecting part is used to be installed on the flexible shaft roller path that needs to be bent into an arc. The switch contact of the microswitch is at the same height as the roller on the flexible shaft roller path. The microswitch is connected to each of the plurality of arc adjustment mechanisms of the flexible shaft roller path one by one, so that the switch contact of the microswitch can control the corresponding arc adjustment mechanism to stop operating after contacting the arc adjustment template.

[0015] The arc-shaped automatic detection mechanism further includes a switch bracket, a guide sleeve, a guide rod and an adjusting bolt. The microswitch is installed on the switch bracket. The switch bracket and the connecting part are connected through the mutually movably sleeved guide sleeve and guide rod. One end of the adjusting bolt is rotatably connected to the connecting part, and the other end extends out from the threaded hole of the switch bracket to adjust the distance between the switch bracket and the connecting part.

[0016] Furthermore, two microswitches are installed on the switch bracket, and are respectively arranged on both sides of the adjusting bolt.

[0017] The connecting part includes a bottom plate and a clamping plate.

[0018] A lower arc forming mechanism of a glass bending and tempering device comprises a plurality of groups of flexible shaft rollers arranged at intervals along the glass conveying direction, the middle portion of the flexible shaft rollers is supported on a supporting crossbeam perpendicular to the glass conveying direction, the axial direction of the flexible shaft in a natural state in the flexible shaft rollers is perpendicular to the glass conveying direction, a plurality of arc adjusting mechanisms supported on the supporting crossbeam are arranged at intervals along the axial direction of the flexible shaft rollers; and an arc adjusting detection device for detecting the arc forming accuracy of the flexible shaft is provided, the arc adjusting detection device adopts the automatic arc adjusting detection device described above.

[0019] In the lower arc forming mechanism, the flexible shaft roller also includes an elastic member for supporting the flexible shaft, and the connecting portion of the automatic arc detection mechanism is installed on the elastic member.

[0020] Furthermore, the elastic member is a spring steel wire or a spring steel plate.

[0021] In the lower arc forming mechanism, the arc adjusting mechanism is a linear telescopic mechanism.

[0022] Furthermore, the linear telescopic mechanism includes an arc-adjusting screw and an arc-adjusting motor. The arc-adjusting motor is hinged on the supporting beam below the flexible shaft roller. One end of the arc-adjusting screw is hinged to the elastic member, and the other end is connected to the arc-adjusting motor through a transmission mechanism. The extension and retraction of the arc-adjusting screw is controlled by the arc-adjusting motor. An absolute encoder is installed on the arc-adjusting motor to record the rotation angle of the arc-adjusting motor and send the angle information to the controller. The transmission mechanism is a bevel gear set.

[0023] The "arc" mentioned in the present invention is a customary term in the field of glass tempering, which is used to describe the shape of curved glass. Therefore, it includes both arcs in the general sense and other special shapes such as arc-like shapes, unequal arcs, waves, V-shapes, etc. that are close to arcs.

[0024] The beneficial effects of the present invention are: first, the present invention has a simple and practical structure, is convenient and quick to operate, improves the accuracy and efficiency of arc adjustment, forms a closed loop in the arc adjustment process in PLC control, and realizes fully automatic arc adjustment of large-scale hyperbolic glass tempering equipment.

[0025] Second, the height of the micro switch in the present invention can be adjusted by adjusting the bolt to adapt to glass tempering equipment of different specifications.

[0026] Thirdly, the one-to-one connection between the micro switch and the arc-adjusting motor in the present invention facilitates the precise control of the arc-adjusting motor, thereby facilitating the improvement of the overall arc-forming accuracy of the flexible shaft.

[0027] Fourth, in the present invention, the arc adjustment template is used as a reference for arc adjustment. The arc adjustment template is lifted and lowered by a lifting frame, which has a simple and practical structure. Moreover, it is convenient to replace arc adjustment templates of different specifications according to the target arc shape, with stronger versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 FIG. 6 is a schematic structural diagram of a set of flexible shaft roller paths in the lateral arc forming mechanism in the prior art;

[0029] Figure 2 FIG. 10 is a schematic diagram of the automatic arc adjustment detection device of the present invention installed on the flexible shaft roller path;

[0030] Figure 3 FIG. 14 is an axonometric view of the arc-shaped automatic detection mechanism of the present invention;

[0031] Reference numerals in the figures: 1, support cross beam; 2, elastic member; 3, flexible shaft; 4, arc adjustment lead screw; 5, bevel gear set; 6, arc adjustment motor; 7, absolute value encoder; 8, arc-shaped automatic detection mechanism, 801, micro switch; 802, switch bracket; 803, guide sleeve; 804, guide rod; 805, adjusting bolt; 806, clamping plate; 807, bottom plate; 9, arc adjustment template; 10, template bracket; 11, lifting frame. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The present invention will be further described in detail below in conjunction with the drawings and embodiments, but it shall not be used as a basis for any limitation to the invention.

[0033] The lower arc forming mechanism of a glass bending and toughening device includes multiple groups of flexible shaft roller paths arranged at intervals along the glass conveying direction. The flexible shaft roller paths are arranged in the manner described in the background art, and specific arrangements can be referred to Figure 1 . In Figure 1 , the middle of the flexible shaft roller path is supported on a support cross beam 1 perpendicular to the glass conveying direction. The flexible shaft roller path includes a flexible shaft 3, an elastic member 2, and a transmission mechanism arranged in the middle of the flexible shaft 3. The axial direction of the flexible shaft 3 in the natural state of the flexible shaft roller path is perpendicular to the glass conveying direction. A roller for conveying glass is installed on the flexible shaft 3. The flexible shaft 3 is supported on the elastic member 2, and the flexible shaft 3 is parallel to the elastic member 2. The elastic member 2 is made of spring wire or spring steel plate. Multiple arc adjustment mechanisms supported on the support cross beam 1 are arranged at intervals along the axial direction of the flexible shaft roller path. The arc adjustment mechanism includes an arc adjustment motor 6, a bevel gear set 5, and an arc adjustment lead screw 4. The arc adjustment lead screw 4 is hinged to the elastic member 2. The arc adjustment motor 6 is hinged to the support cross beam 1 through a motor support. The arc adjustment motor 6 drives the arc adjustment lead screw 4 to stretch up and down through the bevel gear set 5, so as to realize the bending and arc forming of the flexible shaft 3.

[0034] In order to detect the arc forming accuracy of the flexible shaft 3, an automatic arc adjustment detection device is further provided on the lower arc forming mechanism, asFigure 2 As shown, the automatic arc adjustment detection device includes a plurality of arc-shaped automatic detection mechanisms 8 and an arc adjustment template 9. The arc adjustment template 9 is provided with an arc-shaped edge having the same shape as the target arc shape of the glass.

[0035] As Figure 3 shown, the arc-shaped automatic detection mechanism 8 includes a microswitch 801 and a connecting portion. The connecting portion includes a bottom plate 807 and a clamping plate 806. The arc-shaped automatic detection mechanism 8 further includes a switch bracket 802, a guide sleeve 803, a guide rod 804, and an adjusting bolt 805. There are two guide sleeves 803, which are respectively fixed on both sides of the bottom plate 807. One end of the guide rod 804 is fixed on the switch bracket 802, and the other end is movably sleeved in the guide sleeve 803. One end of the adjusting bolt 805 is rotatably connected to the bottom plate 807, and the other end extends out from the threaded hole of the switch bracket 802. By screwing the adjusting bolt 805, the distance between the switch bracket 802 and the bottom plate 807 can be adjusted; the microswitch 801 is installed on the switch bracket 802; the clamping plate 806 is disposed on a portion of the bottom plate 807 extending to one side and is fixed to the bottom plate 807 by screws.

[0036] Two of the microswitches 801 are provided on the switch bracket 802 of each arc-shaped automatic detection mechanism 8, and are respectively located on both sides of the adjusting bolt 805.

[0037] When installing the arc-shaped automatic detection mechanism 8, as Figure 2 shown, a required number of arc-shaped automatic detection mechanisms 8 are axially and spaced along the soft shaft and installed on the last set of soft shaft roller paths on the outlet side of the lower arc-forming mechanism, that is, the bottom plate 807 and the clamping plate 806 of the connecting portion of the arc-shaped automatic detection mechanism 8 clamp the elastic member 2 of the soft shaft roller path and are fixed with screws. The adjusting bolt 805 is adjusted so that the switch contacts of the microswitch 801 are at the same height as the rollers on the soft shaft roller path. The microswitch 801 is connected to the arc adjustment mechanism of the soft shaft roller path one by one, so that when the switch contacts of the microswitch 801 contact the arc adjustment template 9, the corresponding arc adjustment mechanism can be controlled to stop operating. Generally, the microswitch 801 is connected to the adjacent arc adjustment mechanism.

[0038] The arc adjustment template 9 is connected to a template support 10 and a lifting frame 11. The lifting frame 11 is located on the frame above the lower arc-forming mechanism. After the arc adjustment template 9 is installed, it can move up and down directly above the arc-shaped automatic detection mechanism 8 under the drive of the lifting frame 11. When it is necessary to detect the arc-forming accuracy of the soft shaft roller path, the arc adjustment template 9 is lowered to the required position by the lifting frame 11, and then the corresponding soft shaft roller path forms an arc. The detection of the arc-forming accuracy is completed through the cooperation of the microswitch 801 and the arc adjustment template 9. After completion, the arc adjustment template 9 is raised by the lifting frame 11.

[0039] After adopting the arc-shaped automatic detection mechanism 8, it is also necessary to improve the arc adjustment mechanism. Specifically, an absolute encoder 7 is installed on the arc adjustment motor 6 to record the rotation angle of the arc adjustment motor 6 and send the angle information to the controller of the arc adjustment mechanism.

[0040] The method for automatically adjusting the arc of the lower arc-forming mechanism by using the above automatic arc adjustment detection device and the improved arc adjustment mechanism is as follows:

[0041] Step 1: Install the arc-shaped automatic detection mechanism 8 on the last set of flexible shaft roller paths at the sheet outlet end of the lower arc-forming mechanism. The number of installed arc-shaped automatic detection mechanisms 8 is the same as the number of arc adjustment mechanisms on the flexible shaft roller paths, and ensure that the switch contacts of the microswitch 801 in the arc-shaped automatic detection mechanism 8 are at the same height as the rollers on the flexible shaft roller paths.

[0042] Step 2: Select an arc adjustment template 9 that is consistent with the shape of the target glass arc surface, install it on the lifting frame 11 above the last set of flexible shaft roller paths, and adjust the height of the arc adjustment template 9 through the lifting frame 11 so that the arc top of the arc adjustment template 9 is at the same height as the middle roller of the last set of flexible shaft roller paths.

[0043] Step 3: Start the arc adjustment mechanisms on the last set of flexible shaft roller paths to bend the last set of flexible shaft roller paths into an arc.

[0044] Step 4: When the switch contact of one of the microswitches 801 touches the arc adjustment template 9, the microswitch 801 controls the arc adjustment mechanism connected to it to stop operating. The absolute encoder 7 in the arc adjustment mechanism records the position information of the arc adjustment mechanism at this time and sends the position information to the controller of the lower arc-forming mechanism, indicating that the arc adjustment mechanism has completed the arc adjustment operation. Follow this method until all arc adjustment mechanisms have completed the arc adjustment operation.

[0045] Step 5: The controller of the lower arc-forming mechanism controls the arc adjustment mechanisms on other flexible shaft roller paths in the lower arc-forming mechanism to act to reach the corresponding positions according to the received position information of each arc adjustment mechanism, so that all flexible shaft roller paths reach the same arc shape as the last set of flexible shaft roller paths.

[0046] The "position information" is the rotation angle of the arc adjustment motor 6 directly recorded by the absolute encoder 7. Combining with the transmission ratio of the hammer gear set 5 and the adjusting screw rod 4, the telescopic length of the adjusting screw rod 4 can be calculated.

[0047] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Those of ordinary skill in the art should understand that the specific implementation manners of the present invention can be modified or equivalently replaced by referring to the above embodiments. Any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention are within the protection scope of the claims pending for approval.

Claims

1. An automatic arc adjustment method for a glass bending and tempering device, characterized in that, It includes the following steps: Step 1: Select any set of flexible shaft roller paths in the lower arc-forming mechanism of the glass bending and toughening equipment as the detection roller path. Install an arc adjustment template on the lifting frame above the detection roller path. The arc adjustment template has an arc-shaped part adapted to the shape of the target glass arc surface. Then, adjust the height of the arc adjustment template through the lifting frame so that the top of the arc of the arc-shaped part of the arc adjustment template contacts the top of the rolling surface of the middle roller of the detection roller path below; Step 2: Install the arc-shaped automatic detection mechanism on the detection roller path. The installation quantity of the arc-shaped automatic detection mechanism is the same as the quantity of the arc adjustment mechanisms on the detection roller path to achieve one-to-one control of the arc adjustment mechanisms. The arc-shaped automatic detection mechanism includes a microswitch and a connecting part. The connecting part is arranged on the detection roller path, and the switch contact of the microswitch is at the same height as the top of the rolling surface of the roller on the detection roller path. The arc adjustment mechanism includes an arc adjustment screw rod and an arc adjustment motor. The arc adjustment motor is fixed on the support cross beam below the detection roller path; Step 3: Start each arc adjustment mechanism on the detection roller path in Step 2 to bend the detection roller path into an arc; Step 4: When the arc-shaped automatic detection mechanism contacts the arc adjustment template, the arc-shaped automatic detection mechanism controls the power device of the associated arc adjustment mechanism to stop operating. The arc adjustment mechanism records the position information at this time and sends the position information to the controller of the lower arc-forming mechanism, indicating that the arc adjustment mechanism has completed the arc adjustment action. According to this method, until all the arc adjustment mechanisms on the detection roller path have completed the arc adjustment action; Step 5: The controller of the lower arc-forming mechanism controls the corresponding arc adjustment mechanisms on other flexible shaft roller paths in the lower arc-forming mechanism to move to the corresponding positions according to the position information of each arc adjustment mechanism of the received detection roller path, so that all the flexible shaft roller paths reach the same arc as the detection roller path; In Step 4, the arc-shaped automatic detection mechanism triggers the microswitch through the contact between the set microswitch and the arc adjustment template to achieve the control of the power device on the arc adjustment mechanism.

2. The automatic arc adjustment method according to claim 1, wherein The flexible shaft roller path includes a flexible shaft and an elastic member for supporting the flexible shaft. The microswitch is installed on the elastic member.

3. The automatic arc adjustment method according to claim 2, characterized in that The elastic member is spring wire or spring steel plate.

4. The automatic arc adjustment method according to claim 3, characterized in that One end of the arc adjustment screw rod is hinged to the elastic member, and the other end is connected to the arc adjustment motor through a transmission mechanism. The arc adjustment motor is used to control the telescopic movement of the arc adjustment screw rod. An absolute encoder is installed on the arc adjustment motor.

5. An automatic arc adjustment detection device for a glass bending and toughening device, which is used for the automatic arc adjustment method according to any one of claims 1 to 4, and is characterized in that, It includes a plurality of arc-shaped automatic detection mechanisms and arc adjustment templates. The arc adjustment template is detachably arranged at the lower part of the upper air grille. The arc adjustment template has an arc-shaped part with the same shape as the target arc-shaped glass. The arc-shaped automatic detection mechanism includes a microswitch and a connecting part. The connecting part is arranged on the flexible shaft roller path. The switch contact of the microswitch is at the same height as the top of the rolling surface of the roller on the flexible shaft roller path. The microswitch is connected to the plurality of arc adjustment mechanisms on the flexible shaft roller path one by one.

6. The automatic arc adjustment detection device according to claim 5, wherein, The arc-shaped automatic detection mechanism further includes a switch bracket, a guide sleeve, a guide rod, and an adjusting bolt. The microswitch is installed on the switch bracket. The switch bracket and the connecting portion are connected by the mutually movably sleeved guide sleeve and guide rod. One end of the adjusting bolt is rotatably connected to the connecting portion, and the other end extends out from the threaded hole of the switch bracket to adjust the distance between the switch bracket and the connecting portion.

7. The automatic arc adjustment detection device according to claim 6, characterized in that Two microswitches are arranged in parallel on the switch bracket.

8. The automatic arc adjustment detection device according to any one of claims 5 to 7, characterized in that, The connecting portion includes a bottom plate and a clamping plate.

9. The lower arc-forming mechanism of a glass bending and toughening device includes multiple groups of soft-axis roller tracks arranged at intervals along the glass conveying direction. The middle part of the soft-axis roller track is supported on a support cross beam perpendicular to the glass conveying direction. When the soft-axis roller track is in a natural state, its axial direction is perpendicular to the glass conveying direction. Multiple arc-adjusting mechanisms supported on the support cross beam are arranged at intervals along the axial direction of the soft-axis roller track. It is characterized in that, It further includes an arc adjustment detection device, and the arc adjustment detection device adopts the automatic arc adjustment detection device according to any one of claims 5 to 8.

10. The lower arc-forming mechanism of a glass bending and tempering device according to claim 9, characterized in that, The flexible shaft roller path further includes an elastic member for supporting the flexible shaft, and the connecting portion of the arc-shaped automatic detection mechanism is installed on the elastic member.

11. The lower arc-forming mechanism of a glass bending and toughening device according to claim 10, characterized in that, The elastic member is a spring wire or a spring steel plate.

12. The lower arc-forming mechanism of a glass bending and toughening device according to claim 10, characterized in that, The arc adjustment mechanism is a linear telescopic mechanism.

13. The lower arc-forming mechanism of a glass bending and toughening device according to claim 12, characterized in that, The linear telescopic mechanism includes an arc adjustment screw rod and an arc adjustment motor. The arc adjustment motor is hinged on the support cross beam below the flexible shaft roller path. One end of the arc adjustment screw rod is hinged to the elastic member, and the other end is connected to the arc adjustment motor through a transmission mechanism. The arc adjustment motor controls the telescopic movement of the arc adjustment screw rod. An absolute value encoder is installed on the arc adjustment motor to record the rotation angle of the arc adjustment motor and send the angle information to the controller; the transmission mechanism is a bevel gear set.

Images