Work reference point adjustable upper arc changing device, arc changing system and glass forming equipment

Abstract

The utility model relates to work reference point adjustable upper arc device, arc system and glass forming equipment, upper arc mechanism is detachable into upper bending forming section and upper forming candidate section in its length direction, still includes with the guiding device connected to upper arc mechanism, and the guiding device includes guide rod, and the guide rod is used for slidingly connecting at work reference point and upper bending forming section up and down, the guiding device is movably arranged on the support crossbeam through the translation mechanism, and the guide rod is horizontally moved along the glass conveying direction by the translation mechanism, arc system includes lower arc device and upper arc device, and the forming section of glass forming equipment adopts the arc system, the utility model can move the guiding device flexibly, responds the change of glass forming radius, and the central position is automatically adjusted, thereby ensuring that upper arc mechanism and glass curved surface everywhere distance is consistent, guarantees the cooling quality and product performance of toughened glass.

Description

Technical Field

[0001] This utility model belongs to the technical field of curved glass forming equipment, specifically relating to an adjustable upper arc device, an arc system, and glass forming equipment. Background Technology

[0002] Tempered glass is a technology that increases its strength by heating and rapidly cooling glass, creating compressive stress on the surface and tensile stress internally. With technological advancements and increasing consumer demand, the application of bent tempered glass is becoming increasingly widespread in construction, automobiles, and home appliances. Currently, bent tempered glass is mostly formed using forming rollers. The forming section of the glass bending equipment includes a lower arc-changing mechanism, an upper arc-changing mechanism, and multiple upper and lower forming rollers. The upper arc-changing mechanism includes multiple chain plate assemblies that rotate sequentially. The two ends of the upper forming rollers are connected to the upper arc-changing mechanisms on both sides of the glass conveying direction.

[0003] In the production of bent tempered glass, after the glass is heated and softened, it is bent into an arc by the lower arc-changing device in the forming section. During this process, the guiding device of the upper arc-changing mechanism is crucial for the bending and forming of the upper arc-changing mechanism, and it is also crucial for ensuring the consistency of the distance between the air nozzle and the glass surface in the middle and at the edge of the arc. The uniformity of this distance directly determines the uniformity of the cooling effect, which in turn affects the tempering stress distribution, optical quality, and finished strength of the glass.

[0004] After the lower arc-forming mechanism lifts the glass into an arc, the upper arc-forming mechanism correspondingly lifts it into an arc. Multiple upper forming rollers and multiple lower forming rollers are respectively fitted to form the upper forming surface and the lower forming surface of the glass. The part of the upper forming surface and the lower forming surface that participates in the glass bending and forming is the effective arc-forming area. The midpoint of the length direction of the effective arc-forming area is the arc-forming reference point of the lower arc-forming mechanism and the working reference point of the upper arc-forming mechanism.

[0005] If the working reference point of the upper arc mechanism changes, the guide device needs to be reconnected to the working reference point and fixed to the frame.

[0006] However, in the existing technology, the guide device of the upper arc changing mechanism mostly adopts a fixed structure. When the position of the working reference point changes, the guide device cannot move to adjust its position, which in turn cannot ensure that the distance between the upper wind grid of the upper arc changing mechanism and the curved glass is equal at all points, resulting in the formation of cooling dead angles and causing quality defects such as stress spots or even spontaneous breakage of the curved glass. Utility Model Content

[0007] The purpose of this invention is to provide an adjustable upper arc-changing device, an arc-changing system, and a glass forming equipment. It adopts a flexible guide device to quickly and accurately respond to changes in the glass forming radius and automatically adjust its center position, thereby ensuring that the upper arc-changing mechanism is at the same distance from all parts of the glass surface, thus guaranteeing the cooling quality and product performance of the tempered glass.

[0008] To achieve the above objectives, the first technical solution adopted by this utility model is: an adjustable upper arc-changing device, including an upper arc-changing mechanism, which can be disassembled into an upper bending forming section and an upper forming candidate section in its length direction. The upper bending forming section is one section, and the upper forming candidate section is one or two sections. The length of the upper bending forming section is adapted to the arc length of the glass to be processed. The position of the working reference point of the upper bending forming section changes with the change of the length of the upper bending forming section. It also includes a guide device connected to the upper arc-changing mechanism. The guide device includes a guide rod, which is used to slide up and down between the working reference point and the upper bending forming section. The guide device is movably mounted on the support beam by a translation mechanism, which drives the guide rod to move horizontally along the glass conveying direction.

[0009] Its beneficial effects are: the present invention uses the guide device to translate on the support beam, which drives the guide rod to move to the preset position and connects with the working reference point of the upper bending forming section, providing support for the lifting and bending of the upper bending forming section, ensuring that the upper arc changing mechanism can bend and change arc smoothly, thereby ensuring the forming accuracy of the glass, and ensuring that the distance between the upper arc changing mechanism and the glass surface is consistent, thus ensuring the cooling quality and product performance of the tempered glass.

[0010] Furthermore, the guiding device also includes a mounting plate and a sliding assembly. The sliding assembly is disposed on the supporting crossbeam. The mounting plate is connected to the sliding assembly and moves horizontally along the sliding assembly under the drive of the translation mechanism. The guide rod is fixedly connected to the mounting plate.

[0011] Its beneficial effect is that the sliding component facilitates the translation of the mounting plate and guide rod.

[0012] Furthermore, the sliding assembly includes a slide rail and a slider, the slide rail being fixed to the support beam and the slider being fixedly connected to the mounting plate.

[0013] Its beneficial effect is that it provides a specific structure for the sliding component, which facilitates implementation.

[0014] Furthermore, the translation mechanism is a rack and pinion mechanism, which includes a translation drive motor, a rack, and a gear. The rack is fixed on the support beam, and the gear and the translation drive motor are mounted on the mounting plate.

[0015] Its beneficial effect is that it provides a structural form of translation mechanism, which uses the rolling of gears on rack to achieve stable translation of mounting plate and guide rod.

[0016] Furthermore, the guiding device also includes a horizontal locking mechanism, which has two working states: loosening and locking. It is used to lock and fix the translation mechanism after the translation mechanism drives the guide rod to move horizontally to a preset position.

[0017] Its beneficial effects are: the horizontal locking mechanism can lock the translation mechanism, and after the guide rod moves into place, it can prevent the guide rod from shifting during operation.

[0018] Furthermore, the horizontal locking mechanism comprises a first locking cylinder and a perforated plate. The first locking cylinder is fixed to the mounting plate, and the perforated plate is fixed to the support beam. The perforated plate is provided with a plurality of locking holes spaced at intervals along the horizontal direction. The piston rod of the first locking cylinder can be selectively inserted into any of the locking holes to achieve locking and fixing of the translation mechanism.

[0019] Its beneficial effect is that it specifically defines the structure of the horizontal locking mechanism, making it easier to implement.

[0020] Furthermore, the translation mechanism is a lead screw mechanism, including a lead screw, a hollow reducer, and a lead screw nut. The lead screw is fixed on the support beam, the hollow reducer is fixed on the mounting plate and connected to the lead screw nut on the lead screw, and the mounting plate is also provided with a translation drive motor, which drives the lead screw nut to move along the lead screw through the hollow reducer.

[0021] Its beneficial effects are: it provides a structural form of the translation mechanism, and uses a screw and nut mechanism to achieve precise translation of the mounting plate and guide rod.

[0022] Furthermore, the guiding device also includes a vertical locking mechanism, which has two working states: loosening and locking. The vertical locking mechanism is used to lock the guide rod after the guide rod is adjusted to a predetermined height in the vertical direction.

[0023] Its beneficial effect is that after the guide rod is moved into position, it can be locked at a predetermined height by a vertical locking mechanism to ensure the vertical state of the guide rod.

[0024] Furthermore, the vertical locking mechanism includes a top locking unit and / or a bottom locking unit; the top locking unit is disposed on the mounting plate and is used to lock and fix the top of the guide rod; the bottom locking unit is disposed at the bottom end of the guide rod and is used to cooperate with the guide ring at the top of the lower arc device to achieve precise positioning and locking of the bottom of the guide rod.

[0025] Its beneficial effects are: the top locking unit and the bottom locking unit work together to lock the upper and lower ends of the guide rod, resulting in a better locking effect. When only the top locking unit or the bottom locking unit is set, locking the top or bottom of the guide rod can also ensure the vertical state of the guide rod.

[0026] Furthermore, the top locking unit is a second locking cylinder, which is disposed on the mounting plate. The end of its piston rod is connected to the guide rod, and is used to drive the guide rod to rise and fall and lock its vertical position at the target height.

[0027] Its beneficial effects are: it provides a structural form of the top locking unit, and uses the second locking cylinder to realize the lifting control of the guide rod and the vertical locking, which can reduce the number of parts.

[0028] Furthermore, the top locking unit includes a driving member and a clamping member controlled by the driving member; the clamping member can perform the action of clamping or releasing the guide rod under the drive of the driving member, so as to lock or release the guide rod in the vertical direction.

[0029] Its beneficial effect is that it provides another structural form of the top locking unit, which uses the clamping parts to hold the guide rod in the circumferential direction, and can also achieve vertical locking.

[0030] Furthermore, the mounting plate is also equipped with a lifting drive cylinder, the piston rod end of which is connected to the top of the guide rod to drive the guide rod to perform lifting movements.

[0031] Its beneficial effect is that when clamping parts are used to hold the guide rod, the lifting and lowering control of the guide rod is achieved by using a lifting drive cylinder.

[0032] Furthermore, the bottom locking unit is a screw or a pneumatic locking pin; the guide ring has a fixing hole adapted to the screw or pneumatic locking pin; when the guide rod descends to the working position, the bottom locking unit can be inserted into the fixing hole to achieve precise vertical positioning and locking.

[0033] Its beneficial effect is that it provides two structural forms of the bottom locking unit, which facilitates selective implementation.

[0034] Furthermore, the upper arc-changing mechanism is also provided with a guide member, which slides with the guide rod to guide and limit the middle part of the guide rod.

[0035] Its beneficial effects are: the setting of the guide component can ensure the guiding effect between the upper arc mechanism and the guide rod, and can further prevent the guide rod from swaying left and right.

[0036] The second technical solution adopted by this utility model is: a variable arc system, including a lower variable arc device and any of the above-mentioned upper variable arc devices. The lower variable arc device can be disassembled into a lower bending forming section and a lower forming candidate section, wherein the lower bending forming section is one section and the lower forming candidate section is one or two sections. The upper bending forming section and the lower bending forming section are arranged vertically correspondingly, and the working reference point position of the upper bending forming section corresponds vertically to the arc forming reference point position of the lower bending forming section.

[0037] Furthermore, the arc-changing system also includes a central arc-lifting mechanism connected to the guide device. The central arc-lifting mechanism includes a central arc-lifting motor, which is mounted on a mounting frame. The lower side of the mounting frame is slidably connected to the support beam via a sliding component, and the upper side of the mounting frame is fixed to the mounting plate via a connecting plate. The output end of the central arc-lifting motor is connected to a central arc-lifting chain, which is used for lifting the central part of the lower arc-changing device.

[0038] Its beneficial effects are: the setting of the central arc lifting mechanism can realize the lifting and arcing of the middle part of the variable arc system, thereby improving the forming accuracy.

[0039] Furthermore, the arc-changing system also includes a third locking cylinder, which is fixed on the mounting bracket. The perforated plate is fixed on the support beam. The perforated plate is provided with a plurality of locking holes spaced at intervals along the horizontal direction. The piston rod of the third locking cylinder can be selectively inserted into any of the locking holes to achieve locking and fixing of the central arc-lifting mechanism.

[0040] Its beneficial effect is that the specific structure of the horizontal locking of the central lifting mechanism is easy to implement.

[0041] The third technical solution adopted by this utility model is: a glass forming device, comprising an upper segment, a heating segment, a forming segment and a lower segment arranged along the glass conveying direction, wherein the forming segment adopts the above-described variable arc system.

[0042] The beneficial effects of this utility model are: This utility model can move the guide device of the upper arc-changing mechanism to the target position that needs to be fixedly connected by a translation mechanism according to the position change of the working reference point of the upper arc-changing device, so as to realize the connection with the working reference point, ensure that the upper arc-changing mechanism can bend and change arc smoothly, thereby ensuring the forming accuracy of the glass, and ensuring that the distance from the upper air grid to the curved glass surface is equal everywhere after the upper arc-changing mechanism is arc-shaped, thus ensuring the cooling quality and product performance of tempered glass. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the upper arc-changing mechanism in Example 1 being divided into an upper bending forming section and an upper forming candidate section; Figure 2This is a schematic diagram of the upper arc-changing mechanism in Example 1 being divided into an upper bending forming section and two upper forming candidate sections; Figure 3 This is a schematic diagram showing the connection between the upper arc-changing mechanism and the guide device described in Example 1; Figure 4 This is an end view of the upper arc-changing mechanism and guide device described in Embodiment 1; Figure 5 for Figure 4 A partial view of the guiding device described herein; Figure 6 This is an isometric view of the guide device described in Example 1; Figure 7 This is an end view of the upper arc-changing mechanism and guide device described in Embodiment 2; Figure 8 for Figure 7 A partial view of the guiding device described herein; Figure 9 This is an isometric view of the guide device described in Example 2; Figure 10 This is a schematic diagram of the variable arc system described in Example 3; Figure 11 This is a schematic diagram of the end of the variable arc system described in Example 3; Figure 12 This is a first axonometric view of the guiding device described in Example 4; Figure 13 This is a second isometric view of the guide device described in Example 4.

[0044] Markings in the diagram: 100, upper bending forming section; 200, upper forming candidate section; 300, upper forming roller conveyor; 400, lower forming roller conveyor. 1. Upper arc-changing mechanism; 2. Support beam; 3. Guide device; 4. Guide rod; 5. Mounting plate; 6. Sliding assembly; 601. Slide rail; 602. Slider; 7. Translation mechanism; 701. Translation drive motor; 702. Rack; 703. Gear; 704. Lead screw; 705. Hollow reducer; 706. Lead screw nut; 8. First locking cylinder; 9. Hole plate; 901. Locking hole; 10. Guide component; 11. Second locking cylinder; 12. Mounting bracket; 13. Bottom locking unit; 14. Lower arc-changing device; 15. Middle arc-lifting mechanism; 151. Middle arc-lifting motor; 152. Middle arc-lifting chain; 153. Mounting bracket; 154. Third locking cylinder; 155. Connecting plate. Detailed Implementation

[0045] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention in any way.

[0046] Example 1 See attached document Figure 3-6 As shown, the adjustable upper arc-changing device includes an upper arc-changing mechanism 1. The upper arc-changing mechanism 1 can be disassembled and assembled along its length into an upper bending forming section 100 and an upper forming candidate section 200. The upper bending forming section 100 is one segment, and the upper forming candidate section 200 is one or two segments. When the upper forming candidate section 200 is one segment, the upper arc-changing mechanism 1 includes one disassembly / assembly point, which is symmetrically arranged along the direction perpendicular to the glass conveying direction. When the upper forming candidate section 200 is two segments, the upper arc-changing mechanism 1 includes two disassembly / assembly points, which are also symmetrically arranged along the direction perpendicular to the glass conveying direction. Figure 1 , 2 As shown. The length of the upper bending forming section 100 is adapted to the arc length of the glass to be processed; the position of the working reference point of the upper bending forming section 100 changes with the length of the upper bending forming section 100. The upper arc changing device includes a guide device 3 connected to the upper arc changing mechanism 1, and the guide device 3 includes a guide rod 4, which is used to slide vertically and vertically connected to the upper bending forming section 100 at the working reference point.

[0047] Because different batches of curved glass have different arc lengths and radii, the corresponding upper bending forming sections 100 after splitting have different lengths, and therefore the working reference points of the upper bending forming sections 100 are also different. This requires the guide device 3 to be able to move horizontally and connect with the working reference points of the split upper bending forming sections 100. Therefore, the guide device 3 is movably mounted on the support beam 2 via a translation mechanism 7, which drives the guide rod 4 to move horizontally along the glass conveying direction.

[0048] like Figure 4-6 As shown, the guide device 3 also includes a mounting plate 5 and a sliding assembly 6. The sliding assembly 6 is disposed on the support beam 2. The mounting plate 5 is connected to the sliding assembly 6 and moves horizontally along the sliding assembly 6 under the drive of the translation mechanism 7. The guide rod 4 is fixedly connected to the mounting plate 5.

[0049] In this embodiment, the sliding assembly 6 includes a slide rail 601 and a slider 602. The slide rail 601 is fixed to the upper surface of the support beam 2, and the slider 602 is fixedly connected to the lower surface of the mounting plate 5. The slider 602 is slidably disposed on the slide rail 601, driving the mounting plate 5 and the connected guide rod 4 to move horizontally along the slide rail 601. The length direction of the slide rail 601 and the length direction of the support beam 2 are both parallel to the glass conveying direction.

[0050] In other embodiments, the sliding component 6 may further include a slidingly fitted guide sleeve and a guide rod, with the guide rod fixed on the support beam 2 and the guide sleeve fixedly connected to the lower surface of the mounting plate 5.

[0051] In this embodiment, the translation mechanism 7 is a gear and rack mechanism, which includes a meshing rack 702 and a gear 703, as well as a translation drive motor 701. The rack 702 is fixed to the side of the supporting beam 2 or the side of the base of the slide rail 601. The translation drive motor 701 is disposed on the upper surface of the mounting plate 5. The output shaft of the translation drive motor 701 passes through the mounting plate 5 and is connected to the gear 703 to drive the gear 703 to roll along the rack 702, thereby driving the mounting plate 5 to translate along the slide rail 601 via the slider 602.

[0052] Furthermore, the guide device 3 also includes a horizontal locking mechanism, which has two working states: loosening and locking. It is used to lock and fix the translation mechanism 7 after the translation mechanism 7 drives the guide rod 4 to move horizontally to a preset position.

[0053] Specifically, the horizontal locking mechanism consists of a first locking cylinder 8 and a perforated plate 9. The first locking cylinder 8 is fixed to the lower surface of the mounting plate 5, and the perforated plate 9 is fixed to the side of the support beam 2 and located below and parallel to the rack 702. The perforated plate 9 has a plurality of locking holes 901 spaced at intervals along the horizontal direction. After the piston rod of the first locking cylinder 8 extends, it can be selectively inserted into any of the locking holes 901, and the gear 703 will be unable to roll along the rack 702, thereby achieving the locking and fixing of the translation mechanism 7.

[0054] Furthermore, the guide device 3 also includes a vertical locking mechanism, which has two working states: loosening and locking. The vertical locking mechanism is used to lock the guide rod 4 after the guide rod 4 is adjusted to a predetermined height in the vertical direction.

[0055] Specifically, the vertical locking mechanism includes a top locking unit and / or a bottom locking unit; the top locking unit is disposed on the mounting plate 5 and is used to lock and fix the top of the guide rod 4; the bottom locking unit is disposed at the bottom end of the guide rod 4 and is used to cooperate with the guide ring at the top of the lower arc device to achieve precise positioning and locking of the bottom of the guide rod 4.

[0056] More specifically, the top locking unit can adopt the following two structural forms: (1) The top locking unit is a second locking cylinder 11, which is fixed to the upper surface of the mounting plate 5 by the mounting bracket 12. The end of its piston rod is connected to the top of the guide rod 4 passing through the mounting plate 5, and is used to drive the guide rod 4 to rise and fall and lock its vertical position at the target height. (2) The top locking unit includes a driving component and a clamping component controlled by the driving component. The clamping component can perform the action of clamping or releasing the guide rod under the drive of the driving component, so as to realize the locking or release of the guide rod in the vertical direction. At this time, a lifting driving cylinder is also provided on the mounting plate 5. The end of the piston rod of the lifting driving cylinder is connected to the top of the guide rod 4, and is used to drive the guide rod 4 to perform lifting and lowering movements.

[0057] In the above situation (2), the driving component is a cylinder, and the clamping component is a gripper driven by the cylinder. When the gripper closes, it can hold the guide rod tightly, and when the gripper opens, it can release the guide rod.

[0058] More specifically, the bottom locking unit is a screw or a pneumatic locking pin. The guide ring has a fixing hole adapted to the screw or pneumatic locking pin; when the guide rod descends to the working position, the bottom locking unit can be inserted into the fixing hole to achieve precise vertical positioning and locking.

[0059] Preferably, the upper arc-changing mechanism 1 is further provided with a guide member 10. The guide member 10 has a groove through which the guide rod 4 passes, and the groove can also limit the left and right swing of the guide rod 4. The groove of the guide member 10 slides with the guide rod 4 to guide and limit the middle part of the guide rod 4. In this embodiment, the guide member 10 is detachably connected to the upper arc-changing mechanism 1 by bolts or the like. When the guide rod 4 is translated into position, the guide member 10 can be fixed at the corresponding position of the guide rod 4. When it is necessary to move the guide rod 4, the guide member 10 can be removed from the upper arc-changing mechanism 1 to avoid interfering with the translation of the guide rod 4.

[0060] In other embodiments, multiple guide members 10 are provided, and each is connected one-to-one with a telescopic mechanism on the upper arc-changing mechanism 1. The telescopic mechanism controls the extension and retraction of the guide member 10. After the guide member 10 extends, it can be engaged with the middle of the guide rod 4 at that position, slidingly engaging with the guide rod 4 to guide and limit the middle of the guide rod 4. After the guide member 10 retracts, it can avoid interference with the guide rod 4 during the translation process. The telescopic mechanism can be a cylinder or an electric push rod, etc.

[0061] Example 2 The difference between this embodiment and Embodiment 1 lies in the structure of the translation mechanism. For example... Figure 7-9As shown, in this embodiment, the translation mechanism is a lead screw mechanism, including a lead screw 704, a hollow reducer 705, and a lead screw nut 706. The lead screw 704 is fixed to the side of the supporting beam 2 or the side of the slide rail 602, and the hollow reducer 705 is fixed to the lower surface of the mounting plate 5. The input end of the hollow reducer 705 is connected to the translation drive motor 701, and the output end of the hollow reducer 705 is connected to the lead screw nut 706. The translation drive motor 701 drives the lead screw nut 706 to rotate on the lead screw 704 through the hollow reducer 705. The translation drive motor 701 is fixed to the upper surface of the mounting plate 5.

[0062] Example 3 like Figure 10 , 11 As shown, a variable arc system includes a lower variable arc device and an upper variable arc device as described in Embodiment 1 or Embodiment 2. The lower variable arc device 14 can be disassembled into a lower bending forming section and a lower forming candidate section. The lower bending forming section is one segment, and the lower forming candidate section is one or two segments. The lower bending forming section has an arc-forming reference point. The upper bending forming section 100 and the lower bending forming section are arranged vertically correspondingly, and the working reference point position of the upper bending forming section 100 corresponds vertically to the arc-forming reference point position of the lower bending forming section.

[0063] Specifically, multiple upper forming rollers 300 are spaced apart between the upper forming mechanisms 1 of the two upper forming devices along the glass conveying direction, and the two ends of the upper forming rollers 300 are respectively connected to the two upper forming mechanisms 1. Multiple lower forming rollers 400 are spaced apart between the two lower forming devices 14 along the glass conveying direction, and the two ends of the lower forming rollers 400 are respectively connected to the two lower forming devices 14.

[0064] Example 4 like Figure 12 , 13 As shown, a variable arc system differs from Embodiment 3 in that the variable arc system includes a central arc-lifting mechanism 15 connected to the guide device 3. The central arc-lifting mechanism 15 includes a central arc-lifting motor 151, which is mounted on a mounting frame 153. The lower side of the mounting frame 153 is slidably connected to the support beam 2 via a sliding component 6, and the upper side of the mounting frame 153 is fixed to the mounting plate 5 via a connecting plate 155. The output end of the central arc-lifting motor 151 is connected to a central arc-lifting chain 152, which is used for lifting the middle part of the lower variable arc device 14.

[0065] The central arc-lifting mechanism 15 includes a third locking cylinder 154, which is fixed on the mounting bracket 153. The perforated plate 9 is fixed on the supporting crossbeam 2. The perforated plate 9 has a plurality of locking holes 901 spaced at intervals along the horizontal direction. The piston rod of the third locking cylinder 154 can be selectively inserted into any of the locking holes 901 to lock and fix the central arc-lifting mechanism 15.

[0066] Example 5 A glass forming apparatus includes an upper section, a heating section, a forming section, and a lower section arranged along the glass conveying direction, wherein the forming section adopts the variable arc system described in Embodiment 3 or Embodiment 4.

[0067] In actual production, in order to adapt to glass products with different bending radii and simultaneously meet the diverse production needs of tempered glass with small and large bending radii, the arc-forming reference point and working reference point of the effective arc-forming area are not always located at the center of the length direction of the arc-forming mechanism, but are not fixed. The reasons are as follows: (1) The variable arc mechanism can drive the forming surface to form an unequal arc surface by adjusting the arc adjustment mechanism. According to the arc length and radius of the target glass, the position and range of the effective arc forming area in the unequal arc surface will change due to the adjustment of the arc adjustment mechanism. Therefore, the arc forming reference point and working reference point corresponding to the effective arc forming area will also change accordingly.

[0068] (2) After the adjacent chain plate assemblies in the arc-changing mechanism are disconnected, the arc-changing mechanism can be disassembled into a bending forming section and a forming candidate section. The bending forming section is used for bending glass to meet the forming of curved glass with different arc lengths and radii. Therefore, the midpoint of the length direction of the bending forming section can be used as the arc-forming reference point or the working reference point. The length of the bending forming section will be different depending on the disassembly and assembly position. Therefore, the arc-forming reference point and the working reference point are not fixed. Of course, the bending forming section will also have the above situation (1) which leads to the instability of the positions of the arc-forming reference point and the working reference point.

[0069] This invention can move the guide device of the upper arc-changing mechanism to the target position that needs to be fixedly connected by a translation mechanism according to the position change of the working reference point of the upper arc-changing device, so as to achieve the connection with the working reference point and ensure that the distance from the upper air grid to the curved glass surface is equal everywhere after the upper arc-changing mechanism forms an arc, thus ensuring the cooling quality and product performance of the tempered glass.

[0070] The above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Those skilled in the art should understand that modifications or equivalent substitutions can be made to the specific implementation of this utility model with reference to the above embodiments. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this utility model are within the protection scope of the pending claims.

Claims

1. An upper arc-changing device with an adjustable working reference point, comprising an upper arc-changing mechanism (1), characterized in that: The upper arc-changing mechanism (1) can be disassembled into an upper bending forming section (100) and an upper forming candidate section (200) in its length direction. The upper bending forming section (100) is one section, and the upper forming candidate section (200) is one or two sections. The length of the upper bending forming section (100) is adapted to the arc length of the glass to be processed. The position of the working reference point of the upper bending forming section (100) changes with the length of the upper bending forming section (100). It also includes a guide device (3) connected to the upper arc-changing mechanism (1). The guide device (3) includes a guide rod (4), which is used to slide up and down at the working reference point and the upper bending forming section (100). The guide device (3) is movably set on the support beam (2) by a translation mechanism (7), and the guide rod (4) is driven by the translation mechanism (7) to move horizontally along the glass conveying direction.

2. The adjustable upper arc device according to claim 1, characterized in that: The guide device (3) also includes a mounting plate (5) and a sliding assembly (6). The sliding assembly (6) is disposed on the support beam (2). The mounting plate (5) is connected to the sliding assembly (6) and moves horizontally along the sliding assembly (6) under the drive of the translation mechanism (7). The guide rod (4) is fixedly connected to the mounting plate (5).

3. The adjustable upper arc device according to claim 2, characterized in that: The sliding assembly (6) includes a slide rail (601) and a slider (602). The slide rail (601) is fixed on the support beam (2), and the slider (602) is fixedly connected to the mounting plate (5).

4. The adjustable upper arc device according to claim 2, characterized in that: The translation mechanism (7) is a gear and rack mechanism, which includes a translation drive motor (701), a rack (702) and a gear (703). The rack (702) is fixed on the support beam (2), and the gear (703) and the translation drive motor (701) are mounted on the mounting plate (5).

5. The adjustable upper arc device according to claim 4, characterized in that: The guide device (3) also includes a horizontal locking mechanism, which has two working states: loosening and locking. It is used to lock and fix the translation mechanism (7) after the translation mechanism (7) drives the guide rod (4) to move horizontally to the preset position.

6. The adjustable working reference point upper arc device according to claim 5, characterized in that: The horizontal locking mechanism includes a first locking cylinder (8) and a perforated plate (9). The first locking cylinder (8) is fixed on the mounting plate (5), and the perforated plate (9) is fixed on the support beam (2). The perforated plate (9) is provided with a plurality of locking holes (901) spaced apart along the horizontal direction. The piston rod of the first locking cylinder (8) can be selectively inserted into any of the locking holes (901) to lock and fix the translation mechanism (7).

7. The adjustable upper arc device according to claim 2, characterized in that: The translation mechanism (7) is a lead screw mechanism, including a lead screw (704), a hollow reducer (705) and a lead screw nut (706). The lead screw (704) is fixed on the support beam. The hollow reducer (705) is fixed on the mounting plate (5) and connected to the lead screw nut (706) on the lead screw (704). The mounting plate (5) is also provided with a translation drive motor (701). The translation drive motor (701) drives the lead screw nut (706) to move along the lead screw (704) through the hollow reducer (705).

8. The adjustable upper arc device according to any one of claims 2-7, characterized in that: The guide device (3) also includes a vertical locking mechanism, which has two working states: loosening and locking. The vertical locking mechanism is used to lock the guide rod (4) after the guide rod (4) is adjusted to a predetermined height in the vertical direction.

9. The adjustable upper arc device according to claim 8, characterized in that: The vertical locking mechanism includes a top locking unit and / or a bottom locking unit (13); the top locking unit is disposed on the mounting plate (5) and is used to lock and fix the top of the guide rod (4); the bottom locking unit (13) is disposed at the bottom end of the guide rod (4) and is used to cooperate with the guide ring at the top of the lower arc device (14) to achieve precise positioning and locking of the bottom of the guide rod (4).

10. The adjustable upper arc device according to claim 9, characterized in that: The top locking unit is a second locking cylinder (11), which is mounted on the mounting plate (5). The end of its piston rod is connected to the guide rod (4) to drive the guide rod (4) to rise and fall and lock its vertical position at the target height.

11. The adjustable upper arc device according to claim 9, characterized in that: The top locking unit includes a drive member and a locking member controlled by the drive member; the locking member can perform the action of clamping or releasing the guide rod (4) under the drive of the drive member, so as to lock or release the position of the guide rod (4) in the vertical direction.

12. The adjustable upper arc device according to claim 11, characterized in that: The mounting plate (5) is also provided with a lifting drive cylinder. The piston rod end of the lifting drive cylinder is connected to the top of the guide rod (4) to drive the guide rod (4) to perform lifting motion.

13. The adjustable upper arc device according to claim 9, characterized in that: The bottom locking unit (13) is a screw or a pneumatic locking pin; the guide ring has a fixing hole that is compatible with the screw or the pneumatic locking pin; when the guide rod (4) is lowered to the working position, the bottom locking unit (13) can be inserted into the fixing hole to achieve precise positioning and locking in the vertical direction.

14. The adjustable working reference point upper arc device according to claim 1, characterized in that: The upper arc mechanism (1) is also provided with a guide (10), which slides with the guide rod (4) to guide and limit the middle part of the guide rod (4).

15. A variable arc system, characterized in that, Includes a lower arc-changing device and an upper arc-changing device as described in any one of claims 1 to 14. The lower arc-changing device (14) can be disassembled into a lower bending forming section and a lower forming candidate section, wherein the lower bending forming section is one section and the lower forming candidate section is one or two sections; the upper bending forming section (100) and the lower bending forming section are arranged vertically correspondingly, and the working reference point position of the upper bending forming section (100) corresponds vertically to the arc-forming reference point position of the lower bending forming section.

16. The variable arc system according to claim 15, characterized in that: It also includes a central arc-lifting mechanism (15) connected to the guide device (3). The central arc-lifting mechanism (15) includes a central arc-lifting motor (151), which is mounted on a mounting frame (153). The lower side of the mounting frame (153) is slidably connected to the support beam (2) via a sliding component (6), and the upper side of the mounting frame (153) is fixed to the mounting plate (5) via a connecting plate (155). The output end of the central arc-lifting motor (151) is connected to the central arc-lifting chain (152), which is used for lifting the middle part of the lower arc-changing device (14).

17. The variable arc system according to claim 16, characterized in that: It also includes a third locking cylinder (154), which is fixed on the mounting bracket (153). The perforated plate (9) is fixed on the support beam (2). The perforated plate (9) is provided with a plurality of locking holes (901) spaced at intervals along the horizontal direction. The piston rod of the third locking cylinder (154) can be selectively inserted into any of the locking holes (901) to lock and fix the central lifting mechanism (15).

18. A glass forming apparatus, comprising an upper section, a heating section, a forming section, and a lower section arranged along the glass conveying direction, characterized in that, The forming section employs the variable arc system as described in any one of claims 15-17.

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