A heat bending device for producing a curved glass cover plate

Abstract

The application discloses a kind of hot bending device for curved glass cover plate production, it is related to glass hot bending technical field, including workbench and glass cover plate, workbench is fixedly connected with fixed shell by bolt, heating device is fixedly connected on fixed shell by bolt, the upper surface of workbench is fixedly connected with base, base is located at the just below of heating device, the top of base is fixedly connected with heating device, the two die grooves of twin mould can be translated and alternately hot bending, the efficiency of hot bending can be improved, at the same time, after twin mould translation, the glass cover plate that has been hot bending can be pushed out to heating device, in turn, it can be convenient for staff to take the glass cover plate of forming, it can also realize continuous hot bending to glass cover plate, also prevent the temperature loss of heating device inside during taking glass cover plate, ensure the stability of heating device inside temperature, improve the effectiveness of subsequent glass cover plate hot bending.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of glass heat bending, in particular to a heat bending device for producing curved glass cover plates. BACKGROUND

[0002] Curved microcrystalline glass cover plate is a new type of glass material composed of crystalline phase and part of glass phase, which has the advantages of high strength and high light transmittance. Curved microcrystalline glass cover plate is widely used in consumer electronic products such as smart phones and smart wearable devices due to its good visual effect and holding feeling. In the prior art, the heat bending forming of curved glass cover plate is usually realized by a heat bending device, which generally includes a heating device and a mold assembly. The heating device provides a high-temperature environment required for glass softening, and the mold assembly is used to support the glass and give it a curved shape. The mold of the traditional heat bending device is designed as a single mold groove, i.e. only one piece of glass can be heat-bent at a time. The mold is fixedly arranged inside the heating device, and the glass needs to be taken out after the heat bending is completed, and then a new glass to be heat-bent is placed again. The overall production continuity is poor. The glass is placed in the mold one by one by manual operation, and the glass after heat bending needs to be taken out directly from the inside of the heating device by the operator.

[0003] The existing heat bending device has many problems in actual application. First, the single mold groove mold and the fixed arrangement mode result in low production efficiency. The mold is idle for a long time during the heat bending period. Since the size of the mold is completely matched with the size of the glass, if the glass is not aligned with the mold, the glass needs to be repeatedly adjusted by manual operation, which further prolongs the processing time of a single piece of glass, and the utilization rate of the equipment is difficult to improve. Second, too many manual intervention links cause heat bending environment pollution and product quality risk. The operator needs to frequently enter and exit the heating device to take and place the glass, which easily leads to temperature loss inside the heating device, fails to reach the heat bending temperature, and causes scratches due to bumping or dust pollution when manually taking, resulting in an increase in the rate of defective products. In addition, the heat-bent glasses are scattered on the workbench, and when multiple glasses are heat-bent, it is easy to cause mistakes in taking and placing, resulting in interruption of process connection. Glass breakage and personnel scratches caused by operation errors also occur during manual taking one by one. SUMMARY

[0004] To solve the above technical problems, the present application provides a heat bending device for producing curved glass cover plates.

[0005] The technical scheme is as follows:

[0006] The utility model provides a kind of hot bending device for curved glass cover plate production, including workbench and glass cover plate, workbench is fixedly connected with fixed shell by bolt, heating device is fixedly connected on fixed shell by bolt, the upper surface of workbench is fixedly connected with base, base is located at the just below heating device, the top of base is fixedly connected with heating device, the top of heating device is fixedly connected with electric telescopic handle by bolt, the telescopic shaft of electric telescopic handle penetrates into the inside of heating device, the one end of electric telescopic handle telescopic shaft in heating device interior is fixedly connected with hot press plate, base is slidably connected with twin mould, base is provided with translation assembly;

[0007] Translation assembly includes translation slot being set on base, and the inside of translation slot is provided with electric screw rod.

[0008] Further, the inside of heating device is provided with electric heating wire and temperature control system, the upper surface of twin mould is provided with two mould grooves, and the two mould grooves are matched with hot press plate.

[0009] Further, the bottom of twin mould is fixedly connected with threaded hole block, the threaded hole block of the bottom of twin mould is slidably connected in the inside of translation slot, the electric screw rod is composed of motor and threaded rod, wherein the motor of electric screw rod is fixedly connected in translation slot, the threaded rod of electric screw rod is rotatably connected in the inside of translation slot, and the threaded rod of electric screw rod is threadedly connected with the threaded hole block of the bottom of twin mould.

[0010] Further, the electric telescopic handle is provided with drop assembly, and the drop assembly includes fixed frame fixedly connected to the top of the electric telescopic handle, two springs fixedly connected to the both sides of the fixed frame, two lifting frames fixedly connected to the bottom of the two springs, two fixed plates provided on the side away from the fixed frame of the two lifting frames, four fixed plates provided in total, and the two fixed plates close to each other in each group, one fixed box fixedly connected to the top of the two fixed plates in each group, a rotating hole provided at each corner of each fixed plate, a rotating rod rotatably connected between the corresponding rotating holes of the two fixed plates in each group, eight rotating rods provided in total, two rotating rods on the same side in each of the four groups, a transmission belt transmissionally connected to the two rotating rods in each group, two transmission belts between the two fixed plates on the same side in each of the two groups, and the glass cover plate between the two transmission belts in the two groups.

[0011] Further, the fixed frame is composed of a horizontal rod and two vertical groove rods and in the shape of a Chinese character, and the two lifting frames are slidably arranged in the two vertical groove rods of the fixed frame.

[0012] Further, one of the fixed plates is fixedly connected with the lifting frame, the other fixed plate is fixedly connected with the fixed box only, the distance between the two fixed plates is matched with the width of the mold groove of the double-mold, the outer surface of the transmission belt is fixedly connected with the uniformly arranged protruding rods, the bottom of the fixed plate is provided with the pressure sensor, and the bottom of the fixed plate protrudes from the bottom of the transmission belt.

[0013] Further, the outer wall top of the two fixed plates away from the lifting frame is fixedly connected with two servo motors, and the outer surface of the two fixed plates away from the lifting frame is fixedly connected with a handle.

[0014] Further, the output shaft of the servo motor is fixedly connected with the rotating rod at the top, and the top of the two fixed boxes is buckled with a top cover.

[0015] From the above, the beneficial effects of the heat bending device for the curved glass cover plate production in the application are as follows:

[0016] The two mold grooves of the double-mold can be translated and alternately heat-bent, which can improve the heat-bending efficiency, and after the double-mold is translated, the heat-bent glass cover plate can be pushed out of the heating device, so that the staff can easily take the formed glass cover plate. Only by translating the double-mold left and right can the formed glass cover plate be moved out of the heating device, which can realize continuous heat-bending of the glass cover plate, prevent the temperature in the heating device from losing during the process of taking the glass cover plate, ensure the stability of the temperature in the heating device, and further reduce the number of opening the heating device to reduce the pollution of pollutants in the heating device.

[0017] The glass cover plate to be heat-bent can be accurately placed in the double-mold groove through the feeding assembly, which avoids the problem that the existing manual placement of the glass cover plate needs to be adjusted repeatedly to be accurately placed in the double-mold groove, reduces the time consumed for adjusting the position of the glass cover plate, and avoids affecting the heat-bending efficiency of the glass cover plate.

[0018] The concentrated storage of the glass cover plate can avoid pollution and bumping, the pollution of the glass cover plate can reduce the defective rate of the heat-bent glass cover plate, and the unified storage can avoid the problems of wrong taking and wrong placing and chaotic stacking when manually taking, ensure that the glass cover plate can be connected in sequence for subsequent heat-bending process, reduce the production waiting time, and improve the heat-bending efficiency of the glass cover plate. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic view of the overall components of the application;

[0020] Figure 2 It is a three-dimensional schematic view of the workbench, fixed shell, heating device, double-mold and other components of the application;

[0021] Figure 3 Figure 1 is a sectional view of the hot press plate, translation groove, electric screw rod and other components of the present application;

[0022] Figure 4 Figure 1 is a sectional view of the hot press plate, translation groove, electric screw rod and other components of the present application;

[0023] Figure 5 Figure 1 is a sectional view of the hot press plate, translation groove, electric screw rod and other components of the present application;

[0024] Figure 6 Figure 1 is a sectional view of the hot press plate, translation groove, electric screw rod and other components of the present application;

[0025] Figure 7 Figure 1 is a sectional view of the hot press plate, translation groove, electric screw rod and other components of the present application;

[0026] Figure 8 Figure 1 is a sectional view of the hot press plate, translation groove, electric screw rod and other components of the present application.

[0027] In the present application, the reference signs are as follows:

[0028] 1, workbench; 21, fixed shell; 22, heating device; 23, base; 24, electric telescopic rod; 25, hot press plate; 26, double die;

[0029] Translation assembly: 31, translation groove; 32, electric screw rod;

[0030] Throwing assembly: 41, fixed frame; 42, spring; 43, lifting frame; 44, fixed plate; 45, fixed box; 46, rotating rod; 47, transmission belt; 48, glass cover plate; 49, servo motor; 410, handle; 411, top cover. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] The embodiments provided by the present application will be described in detail below:

[0033] As Figures 1 to 4As shown, a curved glass cover plate production hot bending device, including workbench 1 and glass cover plate 48, workbench 1 is fixedly connected with the fixed shell 21 through the bolt, the fixed shell 21 is fixedly connected with the heating device 22 through the bolt, the upper surface of workbench 1 is fixedly connected with the base 23, the base 23 is located at the lower side of heating device 22, the top of base 23 is fixedly connected with heating device 22, the top of heating device 22 is fixedly connected with electric telescopic rod 24 through bolt, the telescopic shaft of electric telescopic rod 24 penetrates into the inside of heating device 22, one end of the telescopic shaft of electric telescopic rod 24 located in the inside of heating device 22 is fixedly connected with hot pressing plate 25, the base 23 is slidingly connected with double die 26, the base 23 is provided with translation assembly for driving double die 26 to move horizontally.

[0034] It should be noted that the inside of heating device 22 is provided with electric heating wire and temperature control system for heating and controlling the temperature of hot pressing plate 25 located in the inside of heating device 22, wherein the upper surface of double die 26 is provided with two die grooves, and the two die grooves are matched with hot pressing plate 25.

[0035] The translation assembly comprises a translation slot 31 formed in the base 23, and an electric screw rod 32 is arranged in the translation slot 31.

[0036] It should be noted that the bottom of double die 26 is fixedly connected with a threaded hole block, the threaded hole block at the bottom of double die 26 is slidingly connected in the inside of translation slot 31, the electric screw rod 32 is composed of a motor and a threaded rod, the output shaft of the motor is fixedly connected with the threaded rod, wherein the motor of electric screw rod 32 is fixedly connected in the translation slot 31, the threaded rod of electric screw rod 32 is rotatably connected in the inside of translation slot 31, and the threaded rod of electric screw rod 32 is screwedly connected with the threaded hole block at the bottom of double die 26.

[0037] Specifically, when the glass cover plate 48 is subjected to hot bending processing, the staff places the glass cover plate 48 into one of the mold grooves of the twin mold 26 located outside the heating device 22, and then the controller controls the motor of the electric screw rod 32 to start, and the motor of the electric screw rod 32 drives the threaded rod of the electric screw rod 32 to rotate, and the threaded rod of the electric screw rod 32 will pass through the threaded hole block at the bottom of the twin mold 26 to make the twin mold 26 translate on the base 23, at this time, the mold groove of the twin mold 26 originally located outside the heating device 22 will move to the inside of the heating device 22, and the mold groove of the twin mold 26 originally located inside the heating device 22 will move to the outside of the heating device 22, then the controller controls the electric telescopic rod 24, and the extension shaft of the electric telescopic rod 24 is extended to drive the hot pressing plate 25 to move downward in the inside of the heating device 22, in this process, the electric heating wire in the inside of the heating device 22 is also started by the controller to heat the inside environment of the heating device 22 and the hot pressing plate 25, at this time, the heated hot pressing plate 25 moving downward will be embedded in the mold groove of the twin mold 26, at this time, the hot pressing plate 25 will press the glass cover plate 48 in the mold groove of the twin mold 26, and the glass cover plate 48 is subjected to hot bending processing by the shape of the twin mold 26 and the hot pressing plate 25, in this process, the staff can place another glass cover plate 48 in the mold groove of the twin mold 26 moving to the outside of the heating device 22.

[0038] When the glass cover plate 48 located in the mold groove of the double mold 26 is heated and bent, the glass cover plate 48 located in the heating device 22 has completed the heat bending forming, and the telescopic shaft of the electric telescopic rod 24 is retracted upward under the control of the controller, the telescopic shaft of the electric telescopic rod 24 drives the hot pressing plate 25 to move upward, and the hot pressing plate 25 is disengaged from the embedded relationship with the mold groove of the double mold 26. Then the controller controls the motor of the electric screw rod 32 to reverse, the motor of the electric screw rod 32 drives the threaded rod of the electric screw rod 32 to reverse, and the threaded rod of the electric screw rod 32 moves reversely through the threaded hole block of the double mold 26, that is, the glass cover plate 48 that has completed heat bending in the double mold 26 is driven by the double mold 26 to move outward from the heating device 22, and the glass cover plate 48 that has not been heat-bent and is just placed in the mold groove of the double mold 26 is driven by the double mold 26 to move to the inside of the heating device 22, and then heat bending is performed again. In addition, the completed glass cover plate 48 that is translated to the outside of the heating device 22 can be taken by the staff using tools, and then a new glass cover plate 48 is placed. The two mold grooves of the double mold 26 can be translated and alternately heat-bent to improve the heat bending efficiency. After the double mold 26 is translated, the heat-bent glass cover plate 48 can be pushed out of the heating device 22, so that the staff can easily take the formed glass cover plate 48. Only by translating the double mold 26 left and right can the formed glass cover plate 48 be moved out of the heating device 22, which can realize continuous heat bending of the glass cover plate 48, prevent the temperature in the heating device 22 from losing during the process of taking the glass cover plate 48, and ensure the stability of the temperature in the heating device 22. In addition, the double mold 26 is translated to reduce the number of times of opening the heating device 22, and to reduce the pollution of pollutants in the heating device 22 as much as possible.

[0039] As Figure 1 , Figures 4 to 8As shown, the electric telescopic rod 24 is provided with a throwing assembly for positioning and placing the glass cover plate 48, the throwing assembly comprises a fixed frame 41 fixedly connected to the top of the electric telescopic rod 24, the fixed frame 41 is composed of a horizontal rod and two vertical groove rods and is in the shape of a H-shaped character, the two vertical groove rod slot walls of the fixed frame 41 are fixedly connected with springs 42 at the top, the bottoms of the two springs 42 are fixedly connected with lifting frames 43, the two lifting frames 43 are respectively sliding in the two vertical groove rods of the fixed frame 41, the side away from the fixed frame 41 of the two lifting frames 43 is provided with two fixed plates 44, the four fixed plates 44 are provided in total and the two fixed plates 44 close to each other form a group, the top of each group of two fixed plates 44 is fixedly connected with a fixed box 45, the four corners of each fixed plate 44 are provided with rotating holes, and the corresponding rotating holes of each group of two fixed plates 44 are rotatably connected with a rotating rod 46, eight rotating rods 46 are provided in total, two rotating rods 46 on the same side form a group and four groups are provided in total, the two rotating rods 46 of each group are drivingly connected with a transmission belt 47, the two transmission belts 47 between the two fixed plates 44 on the same side form a group, two groups are provided in total, the glass cover plate 48 is located between the two transmission belts 47 of the two groups, the top of the outer wall of the two fixed plates 44 away from the lifting frame 43 is fixedly connected with two servo motors 49, the output shaft of the servo motor 49 is fixedly connected with the rotating rod 46 at the top, and the outer surface of the two fixed plates 44 away from the lifting frame 43 is fixedly connected with a handle 410, and the top of the two fixed boxes 45 is buckled with a top cover 411. The glass cover plate 48 can be put into the interior by opening the top cover 411.

[0040] It should be noted that the two fixed plates 44 on the same side are described above, one of the two fixed plates 44 is fixedly connected with the lifting frame 43, and the other fixed plate 44 is only fixedly connected with the fixed box 45, the spacing between the two fixed plates 44 is adapted to the width of the mold groove of the twin mold 26, so as to accurately throw the glass cover plate 48 into the interior of the mold groove of the twin mold 26, the outer surface of the transmission belt 47 is fixedly connected with uniformly arranged rubber protruding rods, one glass cover plate 48 is stored between every two protruding rods, so as to limit and layer the glass cover plate 48, in addition, the glass cover plate 48 is not a single one, when the two transmission belts 47 are full of glass cover plates 48, the glass cover plates 48 are stacked upward to the interior of the fixed box 45, the bottom of the fixed plate 44 protrudes from the bottom of the transmission belt 47, so that the fixed plate 44 can effectively contact the twin mold 26, so that the pressure sensor is pressed and starts the servo motor 49 through control.

[0041] Specifically, when the glass cover plate 48 is placed in the mold groove of the double mold 26, it is currently necessary to place it manually inside the mold groove of the double mold 26, but manual placement is prone to deviation and needs to be carefully aligned, i.e. the glass cover plate 48 cannot be accurately and quickly placed in the mold groove of the double mold 26. If the glass cover plate 48 is not held firmly when it is placed manually inside the mold groove of the double mold 26, it will cause the glass cover plate 48 to collide with the double mold 26, resulting in damage to the glass cover plate 48. At this time, the glass cover plate 48 can be placed in the mold groove of the double mold 26 by replacing the throwing assembly. In the above, after the double mold 26 is translated, i.e. the double mold 26 moves the already heat-bent glass cover plate 48 to the outside of the heating device 22, the worker takes away the already heat-bent glass cover plate 48. At this time, the idle double mold 26 is just located directly below the two fixed plates 44 of one of the throwing assemblies. At this time, the worker holds the handle 410 and presses the handle 410, so that the handle 410 drives the fixed plate 44 to move downward. The fixed plate 44 will drive the lifting frame 43 to move downward in the vertical slot rod of the fixed frame 41. When the lifting frame 43 moves downward, it will stretch the spring 42. When the fixed plate 44 moves to the lowest position, i.e. the bottom of the fixed plate 44 is in contact with the upper surface of the double mold 26, the glass cover plate 48 located between the two transmission belts 47 will approach the mold groove of the double mold 26. At this time, because the fixed plate 44 is in contact with the upper surface of the double mold 26, the pressure sensor at the bottom of the fixed plate 44 will be subjected to pressure, and the pressure sensor will control the two servo motors 49 to start through the controller. After the two servo motors 49 are started, the output shafts will drive the two rotating rods 46 to rotate simultaneously in a small amplitude according to the program control, and will also drive the two transmission belts 47 to move towards each other, i.e. the side of the two transmission belts 47 approaching each other will move downward. The transmission of the transmission belt 47 will drive the glass cover plate 48 to move downward synchronously. When the protruding rod on the transmission belt 47 no longer supports the bottommost glass cover plate 48, the glass cover plate 48 will fall into the mold groove of the double mold 26 under the action of gravity, achieving the effect of semi-automatic positioning and throwing. Through the throwing assembly, the glass cover plate 48 that needs to be heat-bent can be accurately thrown into the mold groove of the double mold 26, avoiding the problem that the glass cover plate 48 needs to be repeatedly adjusted to be accurately placed in the mold groove of the double mold 26 by manual placement, reducing the time consumed for adjusting the position of the glass cover plate 48, and avoiding affecting the heat-bending efficiency of the glass cover plate 48.

[0042] It should be noted that, because the glass cover plate 48 is stored between the fixed box 45 and the two transmission belts 47 before heat bending, the storage of the glass cover plate 48 is realized, compared with the existing problem that the glass cover plate 48 is stacked outside the heat bending equipment and is easy to be contaminated and bumped, the centralized storage of the glass cover plate 48 can avoid contamination and bumping, the pollution of the glass cover plate 48 can reduce the defective rate of the heat bending of the glass cover plate 48, at the same time, the unified storage can avoid the problems of wrong taking and wrong placing and chaotic stacking when taking by artificial, ensure that the glass cover plate 48 can be connected in sequence to the subsequent heat bending process, reduce the production waiting time, and improve the heat bending efficiency of the glass cover plate 48.

[0043] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A hot bending device for producing curved glass cover plate, comprising a workbench (1) and a glass cover plate (48), a fixed shell (21) is fixedly connected on the workbench (1) through bolts, a heating device (22) is fixedly connected on the fixed shell (21) through bolts, a base (23) is fixedly connected on the upper surface of the workbench (1), the base (23) is located directly below the heating device (22), the top of the base (23) is fixedly connected with the heating device (22), the top of the heating device (22) is fixedly connected with an electric telescopic rod (24) through bolts, the telescopic shaft of the electric telescopic rod (24) penetrates into the inside of the heating device (22), one end of the telescopic shaft of the electric telescopic rod (24) located inside the heating device (22) is fixedly connected with a hot pressing plate (25), a double die (26) is slidingly connected on the base (23), characterized in that, The base (23) is provided with a translation assembly; The translation assembly comprises a translation slot (31) formed in the base (23), and the translation slot (31) is internally provided with an electric screw rod (32); The electric telescopic rod (24) is provided with a feeding assembly, the feeding assembly comprises a fixing frame (41) fixedly connected to the top of the electric telescopic rod (24), two springs (42) fixedly connected to the two sides of the fixing frame (41), two lifting frames (43) fixedly connected to the bottoms of the two springs (42), two fixed plates (44) provided on the sides, away from the fixing frame (41), of the two lifting frames (43), four fixed plates (44) in total, and each group of two fixed plates (44) is provided with a fixed box (45) fixedly connected to the top of the two fixed plates (44), a rotating hole is formed at each corner of each fixed plate (44), and each group of two fixed plates (44) is rotatably connected with a rotating rod (46) between the corresponding rotating holes of the two fixed plates (44), eight rotating rods (46) in total, two rotating rods (46) on the same side form a group, four groups in total, each of the two rotating rods (46) is provided with a transmission belt (47), two transmission belts (47) between the two fixed plates (44) on the same side form a group, two groups in total, a glass cover plate (48) is located between the two transmission belts (47) of the two groups, one of the two fixed plates (44) is fixedly connected with the lifting frame (43), the other fixed plate (44) is only fixedly connected with the fixed box (45), the spacing between the two fixed plates (44) is matched with the width of the mold groove of the twin-mold (26), the outer surface of the transmission belt (47) is fixedly connected with uniformly arranged protruding rods, the bottom of the fixed plate (44) is provided with a pressure sensor, and the bottom of the fixed plate (44) protrudes from the bottom of the transmission belt (47).

2. The heat bending apparatus for producing a curved glass cover sheet according to claim 1, wherein The heating device (22) is internally provided with an electric heating wire and a temperature control system, and the upper surface of the twin-mold (26) is provided with two mold grooves, and the two mold grooves are matched with the hot pressing plate (25).

3. The heat bending apparatus for producing a curved glass cover plate according to claim 1, wherein The bottom of the twin-mold (26) is fixedly connected with a threaded hole block, the threaded hole block at the bottom of the twin-mold (26) is slidably connected in the translation slot (31), and the electric screw rod (32) is composed of a motor and a threaded rod.

4. The heat bending apparatus for producing a curved glass cover sheet according to claim 1, wherein The fixing frame (41) is composed of a horizontal rod and two vertical groove rods and has a shape of a Chinese character, and the two lifting frames (43) are respectively slid in the two vertical groove rods of the fixing frame (41).

5. The heat bending apparatus for producing a curved glass cover plate according to claim 4, wherein The top of the outer wall of each of the two fixed plates (44) away from the lifting frame (43) is fixedly connected with two servo motors (49), and the outer surface of each of the two fixed plates (44) away from the lifting frame (43) is fixedly connected with a handle (410).

6. The heat bending apparatus for producing a curved glass cover sheet according to claim 5, wherein The output shaft of the servo motor (49) is fixedly connected with the rotating rod (46) at the top, and a top cover (411) is buckled on the top of each of the two fixed boxes (45).

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