CN219279737U

CN219279737U - 3D glass hot bending machine

Info

Publication number: CN219279737U
Application number: CN202320892880.2U
Authority: CN
Inventors: 杨胜; 李阳; 张晓辉; 高树军; 王健; 卞恒卿; 金虎范
Original assignee: Qingdao Ronghe Intelligent Technology Co Ltd
Current assignee: Qingdao Ronghe Intelligent Technology Co Ltd
Priority date: 2023-04-20
Filing date: 2023-04-20
Publication date: 2023-06-30
Anticipated expiration: 2033-04-20

Abstract

The utility model discloses a 3D glass hot bending machine, and belongs to the technical field of hot bending machines. The technical proposal is as follows: the device comprises a feeding table, a preheating forming machine and an air cooling box which are sequentially arranged, wherein a feeding mechanism is arranged on the feeding table; a feeding port and a discharging port are respectively arranged at the joint of the preheating forming machine and the feeding table and the air cooling box, and sealing doors are respectively arranged at the feeding port and the discharging port of the preheating forming machine; the preheating molding machine is provided with a preheating molding cavity, an upper die of a plurality of hot bending dies is sequentially arranged in the preheating molding cavity along the direction from a feeding hole to a discharging hole, heating plates are respectively arranged at the bottom of the preheating molding cavity corresponding to the position of the upper die and the top of the upper die, and an electric heating pipe is arranged in the heating plates. The hot bending machine combines the preheating and forming processes, and can simultaneously throw a plurality of glasses for preheating and forming operation, thereby greatly improving the efficiency of glass forming.

Description

3D glass hot bending machine

Technical Field

The utility model relates to the technical field of hot bending machines, in particular to a 3D glass hot bending machine.

Background

The existing 3D glass hot bending machine is to put cut glass between an upper die and a lower die of a graphite hot bending die, sequentially process the cut glass through a preheating station, a forming station, a slow cooling station and a cooling station, namely, after the glass is heated to a certain temperature to soften the glass, the glass is gradually attached to the upper die and the lower die under a certain pressure, then the glass is pressurized and formed by applying pressure, and then the surface stress of the glass after hot bending is eliminated by gradually cooling through water cooling, so that the glass with a 3D shape is finally obtained.

The prior hot bending machine is usually divided into two working sections for preheating and forming, for example, chinese patent application CN108467187A discloses a glass hot bending machine which comprises a frame, a feeding mechanism, a discharging mechanism, a forming cavity, a mold pushing mechanism, a mold heating mechanism, a workpiece forming mechanism and a slow cooling mechanism, wherein the forming cavity is filled with nitrogen; the feeding mechanism is used for conveying the die carrying the glass workpiece to the inlet of the forming cavity; the mold pushing mechanism is used for pushing the plurality of molds and the glass workpiece into the forming cavity in sequence; the mold heating mechanism is used for preheating a mold and a glass workpiece in the forming cavity; the workpiece forming mechanism is used for carrying out hot press processing on the preheated glass workpiece; the slow cooling mechanism is used for cooling the glass workpiece and the die after hot pressing; the discharging mechanism is used for outputting the cooled glass workpiece and the cooled glass die. The hot bending machine with the structure has complex working procedure, low efficiency, large hot bending machine volume and large occupied space.

Disclosure of Invention

The utility model aims to solve the technical problems that: the defect of the prior art is overcome, and the 3D glass hot bending machine is provided, so that the preheating and forming processes are combined, a plurality of glasses can be simultaneously put into the preheating and forming operation, and the glass forming efficiency is greatly improved.

The technical scheme of the utility model is as follows:

the 3D glass hot bending machine comprises a feeding table, a preheating forming machine and an air cooling box which are sequentially arranged, wherein the feeding table is provided with a feeding mechanism; a feeding port and a discharging port are respectively arranged at the joint of the preheating forming machine and the feeding table and the air cooling box, and sealing doors are respectively arranged at the feeding port and the discharging port of the preheating forming machine; the preheating molding machine is provided with a preheating molding cavity, the preheating molding cavity is internally provided with a plurality of upper dies of the hot bending die in sequence along the direction from a feeding hole to a discharging hole, the bottom of the preheating molding cavity is respectively provided with a heating plate corresponding to the position of the upper dies and the top of the upper dies, and an electric heating pipe is arranged in the heating plate; a fixing mechanism is arranged on a heating plate at the top of the upper die, the upper die is fixed on the heating plate, and an electric cylinder is connected to the top of the heating plate; the air cooling box is provided with an air blower, a box door and an air outlet, and the motor heat pipe, the electric cylinder and the air blower are respectively and electrically connected with the controller.

Preferably, the hot bending die comprises a lower die and a plurality of upper dies, and the 3D glass is pressed in the middle after the upper dies are placed on the lower die.

Preferably, a plurality of hot bending dies are sequentially arranged in the preheating forming cavity along the direction from the feeding port to the discharging port.

Preferably, a temperature sensor is arranged in the preheating molding cavity at a position corresponding to each upper die, and the temperature sensor is electrically connected with the controller.

Preferably, the feeding mechanism comprises a screw rod arranged on the feeding table, the screw rod is driven to rotate by a motor, and the screw rod is connected with a feeding pushing hand in a threaded manner.

Preferably, the fixing mechanism comprises a vacuum adsorption hole arranged at the bottom of the heating plate, the vacuum adsorption hole is connected with a vacuum adsorption pipe, an electromagnetic valve is arranged on the vacuum adsorption pipe, and the vacuum adsorption pipe is connected with a vacuum pump.

Preferably, slots are formed in the feeding port and the discharging port of the preheating forming machine, sealing doors are inserted into the slots, the sealing doors are connected with piston rods of the air cylinders, and the air cylinders are electrically connected with the controller.

Preferably, a transparent observation window is arranged on the preheating molding cavity.

Compared with the prior art, the utility model has the following beneficial effects:

1. the hot bending machine combines the preheating and forming processes, and can simultaneously throw a plurality of glasses for preheating and forming operation, thereby greatly improving the efficiency of glass forming. Meanwhile, the utility model adopts the mode of air cooling instead of water cooling to cool the formed glass, so that the slow cooling department in the traditional hot bending machine can be removed, and on one hand, the defects such as mould printing and the like on the surface of the glass can not be caused; in the second aspect, as the slow cooling department is eliminated, the hot bending machine is smaller in volume, and more devices can be placed in the space with the same size, so that a large amount of space is saved; in the third aspect, a great deal of water resources can be saved by using air cooling, and the cost is saved.

2. According to the utility model, the hot bending die is designed into a sectional structure, so that 3D glass with different shapes can be subjected to sectional hot bending treatment, and the hot bending precision is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic structural view of the hot bending die of the present utility model.

In the figure, 1, a feeding table; 101. a screw rod; 102. a motor; 103. feeding pushing hands; 2. preheating a forming cavity; 201. a heating plate; 202. an electric cylinder; 203. a vacuum adsorption tube; 204. an electromagnetic valve; 205. a transparent viewing window; 3. an air cooling box; 301. a blower; 302. a door; 401. an upper die; 402. and (5) lower die.

Detailed Description

In order to make the technical solution of the present utility model better understood by those skilled in the art, the technical solution of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

Example 1

As shown in fig. 1, this embodiment provides a 3D glass hot bending machine, including a loading table 1, a preheating forming machine and an air cooling box 3 that are sequentially set, a loading mechanism is disposed on the loading table 1, so as to push a lower mold 402 containing 2D glass into the preheating forming machine for preheating forming processing. Specifically, the feeding mechanism comprises a screw rod 101 arranged on the feeding table 1, the screw rod 101 is driven to rotate by a motor 102, and a feeding pushing handle 103 is connected to the screw rod 101 in a threaded manner. After the lower die 402 is placed on the feeding table 1, the controller starts the motor 102 to drive the screw rod 101 to rotate, so that the feeding pushing handle 103 advances towards the lower die 402 and pushes the lower die 402 into the preheating forming machine.

The junction of preheating make-up machine and material loading platform 1 and air cooler 3 is provided with material loading mouth and discharge gate respectively, and material loading mouth and discharge gate department all are provided with the slot, have inserted sealing door in the slot, and sealing door is connected with the piston rod of cylinder, cylinder and controller electric connection. When feeding or discharging, the controller controls the starting cylinder to drive the sealing door to move upwards in the slot, so that the sealing door is opened, and after the feeding or discharging is finished, the reverse control cylinder drives the sealing door to move downwards in the slot, so that the sealing door is closed.

The preheating molding machine is provided with a preheating molding cavity 2, and a plurality of upper dies 401 of the hot bending dies are sequentially arranged in the preheating molding cavity 2 along the direction from a feeding hole to a discharging hole, wherein as shown in fig. 2, the hot bending dies used in the embodiment are designed in a sectional structure, namely, the preheating molding machine comprises a lower die 402 and a plurality of upper dies 401, and the glass is pressed in the middle after the plurality of upper dies 401 are placed on the lower die 402. As shown in fig. 2, a structure in which three upper molds 401 are provided in one hot bending mold is taken as an example, and the three upper molds 401 are adjacently abutted together, and after being placed on a lower mold 402 below, the upper mold 401 and the lower mold 402 are fitted together, so that glass can be molded into an S-shape or an M-shape. In order to facilitate the splicing alignment of the sectional type hot bending die, a matched positioning groove and a positioning block can be processed on the upper die 401 and the lower die 402, so that glass loosening in the preheating forming process can be prevented from causing hot bending deviation, and defective glass products are caused. As shown in fig. 1, two hot bending dies, six upper dies 401, are sequentially disposed in the preheating molding machine.

The bottom of the preheating forming cavity 2 corresponds to the position of the upper die 401 and the top of the upper die 401 are respectively provided with heating plates 201, namely twelve heating plates 201 are arranged in total, electric heating pipes are arranged in the heating plates 201, and the hot bending die can be heated by introducing current into the electric heating pipes. The heating plate 201 at the top of the upper die 401 is provided with a fixing mechanism, and comprises a vacuum adsorption hole arranged at the bottom of the heating plate 201, wherein the vacuum adsorption hole is connected with a vacuum adsorption pipe 203, an electromagnetic valve 204 is arranged on the vacuum adsorption pipe 203, and the vacuum adsorption pipe is connected with a vacuum pump. The vacuum suction pipe 203 is vacuumized by a vacuum pump, so that the upper mold 401 is sucked and fixed at the bottom of the heating plate 201 through the vacuum suction holes. Meanwhile, the top of the heating plate 201 is connected with the electric cylinders 202, and each electric cylinder 202 is controlled by the controller to drive the upper die 401 fixed on the heating plate 201 to move up and down, so that the height of different upper dies of the hot bending die can be adjusted, the difference of bending thicknesses of different parts of S-type glass and M-type glass can be met, and the hot bending forming precision of the 3D glass is improved.

In addition, in order to more precisely adjust the heating temperatures at the different upper molds 401, a temperature sensor is provided in the preheating molding cavity 2 at a position corresponding to each upper mold 401, and the temperature sensor is electrically connected to the controller. The temperature of the region with thicker glass thickness should be higher than that of the region with thinner glass thickness, so that when the mold is heated and molded, the temperature of each upper mold 401 is monitored in real time through a temperature sensor, and a temperature signal is fed back to a controller, and the controller respectively controls the magnitude of current flowing into each heating plate 201, so that different heating temperatures (the heating temperatures of the heating plates must be higher than the temperature of the softening point of the glass sheet) are adjusted for different regions of glass.

In order to facilitate observation of the preheating molding condition of the glass in the preheating molding cavity 2, a transparent observation window 205 may be provided on the preheating molding cavity 2, and problems occurring during the processing may be found in time.

The 3D glass after preheating forming processing enters the air cooling box 3 through a discharge hole, an air blower 301, a box door 302 and an air outlet are arranged on the air cooling box 3, the glass after preheating forming is cooled by air through the air blower 301, and after cooling, the box door 302 is opened to take out the lower die 402.

Working principle:

the lower mold 402 with the 2D glass is placed on the feeding table 1, a sealing door at a feeding port of the preheating forming machine is opened, and the two lower molds 402 are continuously pushed into the preheating forming cavity 2 by the feeding pushing handle 403 so as to simultaneously heat-bend and process the two glasses. After the lower die 402 is pushed in place, the sealing door is closed, the electric cylinder 202 drives the upper die 401 to move downwards to a preset height, and glass is pressed in the middle by matching with the lower die 402 below; before this, a current of a predetermined magnitude is supplied to the motor heat pipe, so that each heating plate 201 reaches a predetermined temperature, and after the upper die 401 is pressed down, the heating plate 201 performs a hot bending process on the hot bending die and the glass in the middle. After the glass is heated and bent for a preset time, the electric cylinder 202 drives the upper die 401 to move upwards, the sealing doors at the feeding opening and the discharging opening are opened, two lower dies 402 containing glass to be heated and bent are continuously pushed in from the feeding table, so that the lower dies 402 containing the glass after being heated and bent are pushed into the air cooling box 3 for air cooling and cooling, and finally the box door 302 is opened to take out the cooled glass.

In the traditional hot bending machine, the preheating and the forming are two working sections which are carried out separately, and the hot bending machine of the embodiment combines the two working sections, so that a plurality of glasses can be simultaneously put into the preheating and the forming operation, and the efficiency of glass forming is greatly improved. In addition, the traditional hot bending machine adopts a water cooling mode to cool the formed glass, the water cooling is omitted, the formed glass is replaced by air cooling, a slow cooling department in the traditional hot bending machine can be removed, and the air cooling is directly carried out, so that defects such as mould printing and the like on the surface of the glass are avoided; in the second aspect, as the slow cooling department is eliminated, the hot bending machine is smaller in volume, and more devices can be placed in the space with the same size, so that a large amount of space is saved; in the third aspect, a great deal of water resources can be saved by using air cooling, and the cost is saved.

Although the present utility model has been described in detail by way of preferred embodiments with reference to the accompanying drawings, the present utility model is not limited thereto. Various equivalent modifications and substitutions may be made in the embodiments of the present utility model by those skilled in the art without departing from the spirit and scope of the present utility model, and it is intended that all such modifications and substitutions be within the scope of the present utility model/be within the scope of the present utility model as defined by the appended claims. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

The 1.3D glass hot bending machine is characterized by comprising a feeding table (1), a preheating forming machine and an air cooling box (3) which are sequentially arranged, wherein a feeding mechanism is arranged on the feeding table (1); a material inlet and a material outlet are respectively arranged at the joint of the preheating forming machine and the material loading table (1) and the air cooling box (3), and sealing doors are respectively arranged at the material inlet and the material outlet of the preheating forming machine; the preheating molding machine is provided with a preheating molding cavity (2), an upper die (401) of a plurality of hot bending dies is sequentially arranged in the preheating molding cavity (2) along the direction from a feeding port to a discharging port, a heating plate (201) is respectively arranged at the bottom of the preheating molding cavity (2) corresponding to the position of the upper die (401) and the top of the upper die (401), and an electric heating pipe is arranged in the heating plate (201); a fixing mechanism is arranged on a heating plate (201) at the top of the upper die (401), the upper die (401) is fixed on the heating plate (201), and an electric cylinder (202) is connected to the top of the heating plate (201); the air cooling box (3) is provided with a blower (301), a box door (302) and an air outlet, and the motor heat pipe, the electric cylinder (202) and the blower (301) are respectively and electrically connected with the controller.
2. The 3D glass hot bending machine according to claim 1, wherein the hot bending mold comprises a lower mold (402) and a plurality of upper molds (401), and the plurality of upper molds (401) are placed on the lower mold (402) to press the 3D glass therebetween.
3. The 3D glass hot bending machine according to claim 2, wherein a plurality of hot bending dies are sequentially arranged in the preheating forming cavity (2) along the direction from the feeding port to the discharging port.
4. The 3D glass hot bending machine according to claim 2, wherein a temperature sensor is arranged in the preheating forming cavity (2) at a position corresponding to each upper die (401), and the temperature sensor is electrically connected with the controller.
5. The 3D glass hot bending machine according to claim 1, wherein the feeding mechanism comprises a screw rod (101) arranged on the feeding table (1), the screw rod (101) is driven to rotate by a motor (102), and a feeding pushing hand (103) is connected to the screw rod (101) in a threaded manner.
6. The 3D glass hot bending machine according to claim 1, wherein the fixing mechanism comprises a vacuum adsorption hole arranged at the bottom of the heating plate (201), the vacuum adsorption hole is connected with a vacuum adsorption pipe (203), an electromagnetic valve (204) is arranged on the vacuum adsorption pipe (203), and the vacuum adsorption pipe (203) is connected with a vacuum pump.
7. The 3D glass heat bender according to claim 1, wherein the material inlet and the material outlet of the preheating forming machine are respectively provided with a slot, a sealing door is inserted into the slots, the sealing door is connected with a piston rod of the air cylinder, and the air cylinder is electrically connected with the controller.
8. 3D glass heat bender according to claim 1, wherein the pre-heating forming cavity (2) is provided with a transparent viewing window (205).