WO2020052045A1 - Loading and unloading device, loading and unloading method and hot bending machine - Google Patents

Abstract

Disclosed are a loading and unloading device, a loading and unloading method and a hot bending machine. The loading and unloading device comprises a rack, wherein the rack is provided with a heat-preservation channel; and a movable carrying mechanism, wherein the movable carrying mechanism is used for moving a mould from an outlet of a hot bending machine to an inlet of the hot bending machine along the heat-preservation channel, such that the mould is always kept at a first temperature greater than room temperature during movement, as well as for mould opening and mould closing. The loading and unloading device can enable a mould to always be kept at a certain temperature greater than room temperature, and the mould does not need to be cooled along with glass, thereby reducing the energy consumption and improving the working efficiency.

Description

Loading and unloading device, method and hot bending machine Technical field

The invention relates to the technical field of glass manufacturing, in particular to a loading and unloading device, a loading and unloading method, and a hot bending machine.

Background technique

At present, the production and processing of curved cover glass is to place the flat cover glass in a mold (that is, feeding) at room temperature, and then heat (about 700 ℃), press in a hot bending equipment, and then gradually cool to Form at room temperature, and finally remove the formed curved cover glass from the mold (ie, cut). The problem with the prior art is that each set of molds (including the upper mold and the lower mold) and each piece of glass must undergo the process of heating from room temperature to high temperature and then cooling from high temperature to room temperature. A large amount of thermal energy is required to heat the mold. Repeatedly heating and cooling the mold in this way will increase energy consumption and is not conducive to improving work efficiency.

Summary of the Invention

The purpose of the present invention is to overcome the problems existing in the prior art, and to provide a loading and unloading device, a loading and unloading method, and a hot bending machine. The glass is cooled together, which reduces energy consumption and improves work efficiency.

In order to achieve the above object, an aspect of the present invention provides a loading and unloading device, including: a rack having a heat insulation channel; and a transfer mechanism for moving a mold along the heat insulation channel from The exit of the bending machine is moved to the entrance of the bending machine, so that the mold is always maintained at a first temperature higher than room temperature during the process of moving, opening and closing the mold.

A second aspect of the present invention provides a hot bending machine, comprising a hot bending machine body and the above-mentioned loading and unloading device, the loading and unloading device is disposed between an outlet and an inlet of the hot bending machine body.

The invention also provides a loading and unloading method, which includes the following steps: S1, removing the mold from the hot bending machine; S2, maintaining the mold at a first temperature higher than room temperature, separating the upper mold of the mold from Lower mold; S3. Remove the semi-finished glass from the lower mold, and place the semi-finished glass in a heat-preserving space whose temperature is higher than room temperature and lower than the first temperature; S4, send the glass to be heat-bent to Heating in the heat preservation space; S5, placing the heated glass to be bent on the lower mold and closing the mold; S6, sending the mold carrying the glass to be bent to the heat to Processing in a hot bending machine.

Through the above technical solution, the heat insulation channel of the rack keeps the mold at a first temperature higher than the room temperature during the process of moving, opening and closing the mold. Since the mold always works at the first temperature, it does not experience This heating and cooling process from high temperature to room temperature to high temperature reduces heat energy consumption, achieves the purpose of energy saving and consumption reduction, and reduces production costs.

In addition, if the semi-finished glass formed by hot bending of the hot bending machine is taken out of the hot bending machine and cooled directly to room temperature, internal stress, cracks, and damage may occur. Therefore, the semi-finished glass is first put into the heating mechanism through a window. In the cavity of the shell, the temperature is slowly lowered to a temperature higher than the room temperature in the heat preservation space of the cavity. During the above-mentioned cooling process, because the temperature of the semi-finished glass drops slowly, its internal structure is stabilized during the cooling process. There will be no problems such as internal stress, cracks, damage, etc. Therefore, the semi-finished glass with a stable internal structure that is cooled to a certain temperature higher than room temperature is finally taken out of the shell, and then it can enter the next process. In addition, compared to directly placing the glass to be bent at room temperature into the heat bending machine, the glass to be bent at room temperature is first placed in a heat-preserving space and heated to a temperature higher than room temperature before being heated. Bending processing can make the glass get better performance in the hot bending process.

BRIEF DESCRIPTION OF THE DRAWINGS

1 is a schematic structural diagram of a preferred embodiment of a loading and unloading device according to the present invention;

Figure 2 is a bottom view of Figure 1;

3 is a schematic structural diagram of a preferred embodiment of a rack of the present invention;

Figure 4 is a rear view of Figure 3;

Figure 5 is a bottom view of Figure 3;

6 is a schematic structural diagram of a preferred embodiment of a hanging mold mechanism of the present invention;

7 is a schematic structural diagram of a preferred embodiment of a transfer mechanism of the present invention;

Figure 8 is a bottom view of Figure 7;

9 is a schematic structural diagram of a preferred embodiment of a cleaning mechanism of the present invention;

10 is a schematic structural diagram of a preferred embodiment of a heating mechanism of the present invention;

11 is a sectional view of FIG. 10;

12 is a left perspective view of a preferred embodiment of a feeding member of the present invention;

13 is a front perspective view of FIG. 12;

14 is a plan view of FIG. 12;

15 is a perspective view of a lower heating plate;

16 is a perspective view of an upper heating plate;

17 is a perspective view of a turntable;

FIG. 18 is a schematic diagram of several stations of the heating mechanism.

detailed description

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

As shown in FIG. 1 and FIG. 2, the loading and unloading device of the present invention includes a frame 100 and a transfer mechanism 300; the frame 100 has a heat insulation channel; and the transfer mechanism 300 is used to move the mold from the heat bending machine along the heat insulation channel. The outlet moves to the entrance of the bending machine, so that the mold is always maintained at a first temperature higher than room temperature during the process of moving, opening and closing the mold.

Through the above technical solution, by using the heat insulation channel with the first temperature of the frame 100, the transfer mechanism 300 keeps the mold in the heat insulation channel during the process of moving, opening and closing the mold when the mold is transferred, that is, Keep the mold at the first temperature above room temperature. Because the mold always works at the first temperature, it does not experience such heating and cooling processes from high temperature to room temperature to high temperature, thereby reducing the heat energy consumption, achieving the purpose of energy saving and consumption reduction, and reducing production costs.

It should be understood that, in order to complete the mold opening and closing operations in the heat preservation channel, and to remove or load the semi-finished glass or the glass to be bent from the mold, it is preferred that The charging device may also be provided with a lifting mechanism 200 for opening and closing the mold, a cleaning mechanism 400 for cleaning the working surface of the mold, and a heating mechanism 500 for realizing the function of holding heat and cooling or heating. The picking device for removing the glass from the mold or putting the glass into the mold may be an external device, or may be provided in a loading and unloading device.

Based on the above-mentioned preferred technical solution, the loading and unloading device of the present invention includes a frame 100, a hanging mold mechanism 200, a transfer mechanism 300, a cleaning mechanism 400, and a heating mechanism 500. The rack 100 has a heat insulation passage. The mold lifting mechanism 200 is configured to perform mold opening and closing on a mold located in the first position. The transfer mechanism 300 is used to move the mold along the insulation channel from the exit of the bending machine to the entrance of the bending machine, so that the mold is always maintained at a first temperature higher than room temperature during the process of moving, opening and closing the mold. . The cleaning mechanism 400 cleans the surface to be cleaned of the upper mold and / or the lower mold of the mold after the mold is opened at the first position. The heating mechanism 500 is used to maintain the glass to be heat-bent or the semi-finished glass removed from the mold at a temperature higher than the room temperature and lower than the first temperature.

During work, the mold exiting the hot bending machine is loaded with the semi-finished glass that has been heat-bent. The mold carrying the semi-finished glass enters the heat insulation passage of the rack 100, and the transfer mechanism 300 transfers the mold from the hot bending machine. The exit of the moving to the first position, at this time, the lifting mold mechanism 200 sucks the upper mold of the mold to open the mold, remove the semi-finished glass from the lower mold manually or using a picking device, and put the semi-finished glass in In one heating mechanism 500, the temperature is slowly reduced, and at the same time, the cleaning mechanism 400 is operated to purge and clean the surfaces of the upper mold and the lower mold. After cleaning is completed, the heated glass to be bent is taken out from another heating mechanism 500, the glass to be bent is placed on the lower mold, and the upper mold is lowered by the lifting mechanism 200 to close the mold. After the mold is closed, the glass to be bent is loaded, and the transfer mechanism 300 is started again to move the mold from the first position to the entrance of the bending machine to perform the bending process of the glass to be bent. The above is the complete loading and unloading workflow.

In the above loading and unloading workflow, the mold is always located in the insulation channel during the process of moving, opening, and closing, that is, the mold is always maintained at the first temperature higher than room temperature, and has not experienced from high temperature to room temperature to high temperature. This heating and cooling process reduces heat energy consumption, achieves the purpose of energy saving and consumption reduction, and reduces production costs. In addition, if the semi-finished glass formed by hot bending of the hot bending machine is directly cooled to room temperature after being taken out of the hot bending machine, problems such as internal stress, cracks, and damage may occur. Therefore, the semi-finished glass is slowly passed through the heating mechanism 500 first. The temperature is lowered to a certain temperature higher than the room temperature. During the above-mentioned cooling process, because the temperature of the semi-finished glass drops slowly, its internal structure is stabilized during the cooling process without internal stress, cracks, and damage. Therefore, the temperature will eventually be reduced. The semi-finished glass with stable internal structure up to a certain temperature higher than room temperature is taken out of the shell, and then it can enter the next process. In addition, compared to directly placing the glass to be bent at room temperature into the heat bending machine, the glass to be bent at room temperature is first placed in a heat-preserving space and heated to a temperature higher than room temperature before being heated. Bending processing can make the glass get better performance in the hot bending process.

The preferred embodiments of the present invention are provided below to explain the frame 100, the hanging mold mechanism 200, the transfer mechanism 300, the cleaning mechanism 400, and the heating mechanism 500, respectively.

The rack 100 includes a cover plate, a bottom plate 123, and a side plate. The cover plate, the bottom plate 123, and the side plate collectively define a heat insulation channel. The heat insulation channel of the rack 100 should be set to the first temperature, and the mold is always placed in the heat insulation channel to maintain the first temperature. Since the mold does not cool to room temperature, energy consumption is saved.

It should be understood that the frame 100 may be provided in various forms, as long as the heat preservation channel can make the mold always complete the movement, mold opening, and mold closing action at the first temperature.

In a preferred embodiment of the present invention, as shown in FIGS. 3-5, the rack 100 of the present invention includes a left upper cover 101, a heating mechanism support base 102, a side guide bar 103, a side door 104, a side door cylinder seat 105, and a side door cylinder 106. , Top cover 107, front door cylinder 108, right rear top cover 109, right top cover 110, front door 111, front guide bar 112, side seal plate 113, front seal plate 114, rear side seal plate 115, dust suction joint 116, compression cylinder 117. Press the cylinder seat 118, the pressing plate seat 119, the rear sealing plate 120, the brush bar pressing plate 121, the brush bar 122, and the bottom plate 123. X is the insertion port of the blowing pipe assembly 406 of the cleaning mechanism 400, Q is the insertion port of the suction cup fixing seat 203 of the lifting mechanism 200, and preferred embodiments of the lifting mechanism 200 and the cleaning mechanism 400 will be explained below.

That is, the cover plate includes a left upper cover 101, an upper cover 107, and a right rear upper cover 109. The side plate includes a side seal plate 113, a front seal plate 114, a rear side seal plate 115, and a rear seal plate 120.

The left upper cover 101, the upper cover 107, the right upper cover 110, the side seal plate 113, the front seal plate 114, the rear seal plate 120, and the bottom plate 123 are all made of double-layer materials. The inner layer is made of a metal material and the outer layer is insulated. material.

The left upper cover 101, the right upper cover 110, the front sealing plate 114, the rear sealing plate 120, the bottom plate 123, the brush strip 122, the rear side sealing plate 115, and the right rear upper cover 109 together constitute a first transfer portion and a first moving portion for the mold to move. Second transfer department. The left and right side sealing plates 113, the side door 104 and the upper cover 107, the front door 111, the rear sealing plate 120, the bottom plate 123, and the brush bar 122 constitute an operation part for the mold to perform mold opening and closing operations in the first position. When cleaning the mold, the front door 111 and the two side doors 104 fall to close the operation part, and the exhaust gas is discharged through the dust suction joint 116 communicating with the external dust suction pipe. The front guide bar 112 and the side guide bar 103 lift up and down the front door 111 and the side door 104. Guiding effect. The pressing cylinder 117, the pressing cylinder seat 118, the pressing plate seat 119 and the pressing plate (not shown in the figure, are placed in the pressing plate seat 119) constitute a pressing piece, which is installed on the rear sealing plate 120. The pressing plate is supported and guided by the pressing plate seat 119 . The two front and rear brush bars 122 are made of high temperature resistant material, and are relatively close together. The two brush bar pressing plates 121 are pressed and fixed on the bottom surface of the bottom plate 123 to facilitate the front fork 304 and the rear dial of the transfer mechanism 300 The free movement of the fork 308 can also ensure the sealing performance of the mold transfer channel. A preferred embodiment of the transfer mechanism 300 will be explained below.

During work, the dust suction joint 116 is connected to the external dust suction duct, and the mold is moved by the front fork 304 and the rear fork 307 to move in the heat preservation passage. The front door cylinder 108 and the side door cylinder 106 control the elevation of the front door 111 and the side door 104, respectively. The pressing cylinder 117 controls the movement of the pressing plate. When the mold is sent to the first position by the front fork 304, the pressing cylinder 117 acts to extend the pressing plate to abut the lower mold against the guide protrusion of the bottom plate 123, so that the lifting mechanism 200 can only lift the upper mold to achieve Open mold work.

The lifting mold mechanism 200 includes a mounting seat, a picking member, and a linear module 202; the picking member can grasp or release the upper mold of the mold; the linear module 202 is provided on the mounting seat and is used to drive the picking member in a vertical direction to make the mold Perform mold opening and closing. The mold lifting mechanism 200 is configured to perform mold opening and closing on a mold located at a first position in the heat insulation passage.

It should be understood that the mold lifting mechanism 200 may include various forms, as long as it can lift the upper mold to perform mold opening and lower the upper mold to perform mold clamping.

As shown in FIG. 6, in a preferred embodiment of the present invention, the hanging mold mechanism 200 of the present invention includes a linear module mounting base 201, a linear module 202, a suction cup fixing base 203, and a suction cup 204. V is an interface of an external vacuum line of the suction cup fixing seat 203, and W is a vacuum suction port of the suction cup 204.

The linear module mounting base 201 is fixed on the upper cover 107 of the rack 100. The linear module 202 is fixed on the linear module mounting base 201, and a suction cup fixing base 203 is mounted thereon. A high-temperature-resistant suction cup 204 is fixed under the suction cup fixing seat 203. The vacuum suction port W communicates with the interface V through the gas path in the suction cup fixing seat 203, and V is connected to a vacuum air source. The role of the suction cup 204 is to hold the upper mold during operation.

The linear module 202 includes a driving device (preferably a servo motor), a ball screw and a linear guide, in order to maintain an accurate position when the upper mold and the lower mold are closed, and at the same time, the upper mold position is different when the lower mold is closed and the upper mold is closed. Need.

In order to ensure that the hanging mold mechanism 200 can continue to work stably under high temperature working conditions, preferably, the suction cup 204 is made of a high temperature resistant elastic material.

During work, the interface V is connected to a vacuum air source. The linear module 202 drives the suction cup holder 203 and the suction cup 204 to come into contact with the upper surface of the upper mold and then connects to the air source. After the suction cup 204 sucks the upper mold, it rises until it is in the mold again. After the glass is filled, it falls. When the upper mold is placed on the glass, the vacuum is cut off and the upper mold is released from the suction cup 204. Then the linear module 202 drives the suction cup fixing seat 203 and the suction cup 204 to rise again.

In addition, it should be understood that because the shape of the glass after hot bending is different from the shape before the forming, the height position of the upper mold is different. The position of the upper mold before the glass bending is higher than the position of the upper mold after the glass is bending. high.

The transfer mechanism 300 includes a main support base, a driving cylinder, and a transfer member; the main support base is disposed between the exit and the inlet of the hot bending machine; the drive cylinder is disposed on the main support base, and the driving cylinder includes an outlet capable of being connected to the hot bending machine. Slider moving from the inlet; the transfer member is arranged on the slider, the transfer member is used to contact the end of the mold and move the mold from the exit of the bending machine to the bending of the heat during the movement with the slider Machine entrance. The transfer mechanism 300 is used to move the mold along the insulation channel from the exit of the bending machine to the entrance of the bending machine, so that the mold is always maintained at a first temperature higher than room temperature during the process of moving, opening and closing the mold. .

The transfer member includes a forward transfer member provided on the front slider and a rear transfer member provided on the rear slider. Both the forward moving member and the rear moving member include a lifting mechanism and a fork lifted by the lifting mechanism.

It should be understood that the transfer mechanism 300 may be provided in various forms, as long as the mold can be moved from the exit of the bending machine to the entrance of the bending machine along the insulation channel.

As shown in FIGS. 7 and 8, in a preferred embodiment of the present invention, the transfer mechanism 300 includes a front towline coupling block 301, a front fork cylinder 302, a gland 303, a front fork 304, and a front fork slider. 305, rear rodless cylinder slider 306, rear fork slider 307, rear fork 308, front cylinder support 309, rear cylinder support 310, rear rodless cylinder 311, front rodless cylinder 312, front towline 313 , Rear drag chain 314, rear drag chain connection block 315, front drag chain seat 316, rear drag chain seat 317, rear fork cylinder 318, front fork cylinder seat 319, front rodless cylinder slider 320, and rear fork cylinder Block 321.

That is, in a preferred embodiment of the present invention: the front support seat and the rear support seat of the main support seat are the front cylinder support seat 309 and the rear cylinder support seat 310, respectively. The front drive cylinder and the rear drive cylinder are a front rodless cylinder 312 and a rear rodless cylinder 311. The front slider and the rear slider are a front rodless cylinder slider 320 and a rear rodless cylinder slider 306. The lifting mechanism includes a front fork slider 305 and a rear fork slider 307. The fork cylinder of the lifting mechanism is divided into a front fork cylinder 302 and a rear fork cylinder 318. The forks are the front fork 304 and the rear fork 308.

The front drag chain coupling block 301 is fixed on a hot bending machine (not shown in the figure), the rear drag chain 313 is connected to the rear, and the other end of the front drag chain 313 is connected to the front drag chain seat 316. The front drag chain seat 316 is fixed to the bottom of the front fork cylinder seat 319. The front fork cylinder seat 319 is fixed on the front rodless cylinder slider 320 of the front rodless cylinder 312, and the front fork cylinder 302 is fixed thereon. The rear towline coupling block 315 is fixed on the hot bending machine, the lower towline 314 is connected to the lower side, the front towline 314 is connected to the rear towline seat 317, and the rear towline seat 317 is fixed to the bottom of the rear fork cylinder seat 321. The rear fork cylinder seat 321 is fixed on the rodless cylinder slider 306 of the rear rodless cylinder 311, and the rear fork cylinder 318 is fixed thereon. The front fork slider 305 and the rear fork slider 307 are fixed to the front fork cylinder seat 319 and the rear fork cylinder seat 321, respectively. The gland 303, together with the front fork slider 305 and the rear fork slider 307, guides the front fork 304 and the rear fork 308 to vertically lift, respectively. The front fork 304 and the rear fork 308 are respectively connected to the piston rod ends of the front fork cylinder 302 and the rear fork cylinder 318, and are pushed up and down by the front fork cylinder 302 and the rear fork cylinder 318. The front rodless cylinder 312 and the rear rodless cylinder 311 are fixed to the front cylinder support 309 and the rear cylinder support 310, respectively.

In operation, the front fork 304 is below the frontmost position, and the rear fork 308 is below the rearmost position. After the mold comes out of the hot bending machine, it reaches the foremost station. The front fork cylinder 302 is activated to raise the front fork 304, and then the front rodless cylinder 312 moves to move the mold to the first position, and then the front fork 304 follows the front. The fork cylinder 302 and the front rodless cylinder 312 are reset back to the front lower position, and at the same time, the rear fork 308 is moved below the first position by the rear rodless cylinder 311. After the mold completes loading and unloading and cleaning, the rear shifter cylinder 318 pushes the rear shifter 308 up and pushes the mold to the rearmost position under the action of the rear rodless cylinder 311. The rear shifter 308 descends to complete the mold transfer. Load work.

In order to achieve automatic control, an inductive switch and a control device can also be provided on the transfer mechanism 300. When the mold reaches the foremost position after coming out of the hot bending machine, the inductive switch will detect the mold and send a mold in-position signal, and the control device receives After the signal, the front fork cylinder 302 is controlled to raise the front fork 304.

The cleaning mechanism 400 includes a driving unit and a cleaning member; the driving unit includes a driving member capable of reciprocating movement; the cleaning member is connected to the driving member and is driven by the driving member when the mold is opened to pass through the upper and / or lower molds of the mold. Clean the surface and clean the surface to be cleaned.

It should be understood that the driving unit may be provided in various forms, for example, the driving unit uses a hydraulic cylinder to drive the cleaning member to move. The cleaning member may also be provided in various forms, for example, using a physical method such as a brush to clean the surface to be cleaned.

As shown in FIG. 9, in a preferred embodiment of the present invention, the cleaning mechanism 400 includes a driving unit (for example, a cylinder 401, a cylinder block 402, a cylinder coupling block 403, a linear guide assembly 404), a trachea fixing seat 405, and a cleaning member ( For example, the blow pipe assembly 406) and the sealing seat 407.

The air cylinder 401 is mounted on the air cylinder seat 402, and the air cylinder seat 402 is disposed on the frame 100. Of course, the air cylinder 401 may be disposed on the upper cover plate 501 of the heating mechanism 500. The cylinder connecting block 403 connects the piston rod of the cylinder 401 with the slider of the linear guide assembly 404, and the air pipe fixing seat 405 fixes the blowing pipe assembly 406 on the slider of the linear guide assembly 404. The blowing pipe assembly 406 is formed by welding an intake pipe with a straight pipe having a plurality of upper blowing nozzles Y and a plurality of lower blowing nozzles Z, and a shaft seal in a sealing seat 407 is set on the intake pipe. The sealing seat 407 is fixed on the side sealing plate 113 of the frame 100.

It should be understood that the stroke of the cylinder 401 is determined by the width dimension of the mold, and its stroke must ensure that the mold can be cleaned in the width direction. The length of the straight pipe of the blower pipe assembly 406 and the number and distribution of the upper blower nozzles Y and the lower blower nozzles Z are determined by the length of the mold, and the length and distribution range must ensure the length of the mold. All get cleaned. The diameter of the upper blowing nozzle Y and the lower blowing nozzle Z may be different. It is determined by the distance from the upper mold and the lower mold, to ensure a certain air pressure when the air blows to the surface of the mold, so as to have a sufficient cleaning effect. In addition, the cleaning mechanism 400 may also be provided with a speed regulating valve, and the back-and-forth movement speed of the blowing pipe assembly 406 may be controlled by a speed regulating valve installed on the air cylinder 401.

When working, the air inlet pipe of the blowpipe assembly 406 is connected to an external high-pressure air source. When the upper mold is separated and raised from the lower mold, and the hot-curved glass is removed from the lower mold, the high-pressure air source is connected, and then the air cylinder 401 is controlled by the air cylinder 401 to push the linear guide of the air pipe assembly 406 on the linear guide assembly 404. It moves back and forth under the action, and high-pressure gas is ejected from the upper and lower blowing nozzles Y and Z to clean the surface to be cleaned of the glass. The sealing seat 407 fitted on the air inlet pipe of the air blowing pipe assembly 406 plays a sealing role to prevent the gas in the rack 100 from leaking to pollute the external environment. When the back-and-forth cleaning action is completed, close the high-pressure gas source in time. During the cleaning process, the rack 100 is closed, and only one exhaust port communicates with the external dust removal duct.

The heating mechanism 500 includes a casing having a cavity, a heating element, and a feeding element; a window 530 communicating with the cavity is provided on the casing; and a heating element is disposed in the casing so that the cavity forming temperature is higher than room temperature and lower than A temperature-maintaining space at a first temperature; the feeding member is disposed in the casing, and the feeding member can carry the glass in the cavity and pass through the window 530 to transfer the glass between the cavity and the exterior of the casing through the window 530.

It should be understood that the casing is designed in various forms as long as it has a cavity therein, for example, the upper cover plate 501, the lower bottom plate 524, and the surrounding plate 525 in the following preferred embodiments may be used together. The heating element can be designed in various forms, for example, the heating tube and the thermocouple in the following preferred embodiments are adopted. The feeding part can also be designed in various forms, as long as the glass can be transferred between the cavity and the outside of the housing through the window 530, for example, a robot, a conveyor belt, or a turntable 502 in the preferred embodiment below can be used.

In a preferred embodiment of the present invention, the heating mechanism 500 is mounted on the heating mechanism support base 102 of the frame 100. As shown in FIG. 10-18, the heating mechanism 500 includes an upper cover plate 501, a turntable 502, a shaft seat 503, a lower bearing 504, a lower heating plate 505, an upper heating tube 506, a lower heating tube 507, an upper heating plate 508, and an upper bearing 509, bearing 510, bushing 511, shaft 512, positioner 513, positioner seat 514, ratchet 515, shaft end cover 516, swing arm 517, swing arm pin 518, cylinder connection block 519, cylinder 520, cylinder seat 521 , A pawl 522, a tension spring 523, a lower bottom plate 524, and a surrounding plate 525.

In addition, A is the glass to be bent, B is the steel ball of the positioner 513, C is the positioning recess on the rotating shaft 512, D is the left heating pipe mounting hole of the lower heating plate 505, and E is the left of the lower heating plate 505 Thermocouple mounting holes, F is the middle heating pipe mounting hole of the lower heating plate 505, G is the right thermocouple mounting hole of the lower heating plate 505, H is the right heating pipe mounting hole of the lower heating plate 505, and I is the upper heating plate 508 Of the left heating pipe mounting hole, J is the left thermocouple mounting hole of the upper heating plate 508, K is the middle heating pipe mounting hole of the upper heating plate 508, L is the right thermocouple mounting hole of the upper heating plate 508, and M is upper heating The right heating tube mounting hole of the disk 508, N is the screw hole connected with the rotating shaft 512, O is the glass support inclined surface of the glass support window of the turntable 502, P is the glass positioning surface of the glass support window of the turntable 502, and R is the loading and unloading station. S is a first heating station, T is a second heating station, and U is a third heating station.

The upper cover plate 501, the lower bottom plate 524, and the surrounding plate 525 together constitute a housing having a cavity. The upper cover plate 501 and the lower bottom plate 524 are provided with openings extending to the edges to form a window 530.

The heating element includes a lower heating plate 505, an upper heating tube 506, a lower heating tube 507, an upper heating plate 508, and a thermocouple.

The upper cover plate 501, the lower bottom plate 524, and the surrounding plate 525 are heat-preserving layers made of a heat-insulating material, and include an upper heating plate 508 and a lower heating plate 505. The upper heating tube 506 is installed in the heating tube installation hole of the upper heating plate 508, and the lower heating tube 507 is installed in the heating tube installation hole of the lower heating plate 505. Four thermocouples (not shown) are installed in the thermocouple mounting holes of the upper heating plate 508 and the thermocouple mounting holes of the lower heating plate 505, respectively. The upper heating plate 508 and the lower heating plate 505 are mated together to form a circular thermal insulation space inside, and the turntable 502 rotates in the thermal insulation space. The turntable 502 is fixed to the bottom end of the rotation shaft 512 through a screw hole N. The rotating shaft 512 is sleeved on the rotating shaft base 503 through the upper bearing 509 and the lower bearing 504 and the bushing 511. The rotating shaft base 503 is installed on the upper cover plate 501, and the positioner base 514 is fixed on the rotating shaft base 503. The positioner 513 is installed in the positioner base 514, the ratchet 515 is installed on the rotating shaft 512 by a key, the rotating shaft end cover 516 is fixed on the upper end of the rotating shaft 512, and the swing arm 517 is loosely sleeved on the rotating shaft 512 through the bearing 510. The tension spring 523 pulls the pawl 522 against the tooth groove of the ratchet 515.

The driving cylinder is an air cylinder 520, and the air cylinder seat 521 is fixed on the frame 100, and the air cylinder 520 is mounted thereon. The air cylinder 520 is connected to the swing arm 517 through the air cylinder coupling block 519 and the swing arm pin 518.

When working, first control the temperature of the insulation space to a set temperature between 120 and 200 ° C, and then manually place glass A (room temperature glass that is not heat-bent or semi-finished glass that has been heat-bent formed) on the turntable 502. On the window of the loading station R. Start the air cylinder 520. The driving end of the air cylinder 520 is extended to drive the swing arm 517 to rotate 90 ° about the axis of the rotation shaft 512. The swing arm 517 drives the pawl 522 to move. When the driving end of the cylinder 520 is retracted, the swing arm 517 drives the pawl 522 to move so that the pawl 522 interacts with the ratchet 515 to drive the ratchet 515 to rotate, thereby rotating the turntable 502 coaxially connected to the ratchet 515 by 90 °. The glass A just entered will enter the first heating station S. At the same time, the glass A that has reached the third heating station U comes out of the heat preservation space to the loading and unloading station R, takes out the heated glass A, and then puts in new glass A again. In this way, the heating or cooling and heat preservation function of glass A can be realized.

Since the semi-finished glass formed by hot bending of the hot bending machine is directly cooled to room temperature after being taken out of the hot bending machine, internal stress, cracks, damage and other problems may occur. Therefore, the semi-finished glass is first put into the heating mechanism 500 through the window 530 In the cavity of the shell, the temperature is slowly lowered to a temperature higher than the room temperature in the heat preservation space of the cavity. During the above-mentioned cooling process, because the temperature of the semi-finished glass drops slowly, its internal structure is stabilized during the cooling process. There will be no problems such as internal stress, cracks, damage, etc. Therefore, the semi-finished glass with a stable internal structure that is cooled to a certain temperature higher than room temperature is finally taken out of the shell, and then it can enter the next process. In addition, compared to directly placing the glass to be bent at room temperature into the heat bending machine, the glass to be bent at room temperature is first placed in a heat-preserving space and heated to a temperature higher than room temperature before being heated. Bending processing can make the glass get better performance in the hot bending process. During the above-mentioned cooling or heating process, the glass is transferred between the heat-preserving space of the cavity and the outside of the casing through the feeding member, which can realize automation and has more convenient advantages.

In a preferred embodiment of the present invention, the upper heating tube 506 in the upper heating plate 508 and the lower heating tube 507 in the lower heating plate 505 correspond to the middle position of the glass at each station one by one to ensure that the glass is evenly heated.

In addition, the gap between the inlet and outlet formed by the turntable 502 and the lower heating plate 505 and the upper heating plate 508 is as small as possible to reduce the air convection between the heat insulation space and the outside air.

The outermost layer of the heating mechanism 500 may also be provided with a thermal insulation layer to further enhance the thermal insulation performance of the thermal insulation space.

The temperature in the heat-preserving space can be controlled by a thermocouple and a heating tube, so that the heating mechanism 500 can not only heat the glass at room temperature to be bent, but also slowly cool the semi-finished glass that has been bent.

The invention also provides a hot bending machine. The hot bending machine comprises a hot bending machine body and the above-mentioned loading and unloading device, and the loading and unloading device is arranged between an outlet and an inlet of the hot bending machine body.

The invention further provides a loading and unloading method, which includes the following steps:

S1. Take out the mold from the hot bending machine;

S2. Keep the mold at a first temperature higher than room temperature, and separate the upper mold and the lower mold of the mold;

S3. Remove the semi-finished glass from the lower mold, and place the semi-finished glass in a thermal insulation space whose temperature is higher than room temperature and lower than the first temperature;

S4. The glass to be bent is sent to a heat preservation space for heating;

S5. Place the heated glass to be bent on the lower mold and close the mold;

S6. The mold carrying the glass to be heat-bent is sent to a heat-bending machine for processing.

With the above loading and unloading method, because the mold transfer, mold opening, and mold clamping are always maintained at the first temperature higher than room temperature, the heating and cooling process from high temperature to room temperature to high temperature is not experienced, thereby reducing heat energy consumption. , To achieve the purpose of saving energy and reducing consumption, reducing production costs. In addition, if the semi-finished glass formed by hot bending of the hot bending machine is taken out of the hot bending machine and cooled directly to room temperature, internal stress, cracks, and damage may occur. Therefore, the semi-finished glass is first put into the heating mechanism through a window. In the cavity of the shell, the temperature is slowly lowered to a temperature higher than the room temperature in the heat preservation space of the cavity. During the above-mentioned cooling process, because the temperature of the semi-finished glass drops slowly, its internal structure is stabilized during the cooling process. No internal stress, cracks, damage, etc. In addition, compared to directly placing the glass to be bent at room temperature into the heat bending machine, the glass to be bent at room temperature is first placed in a heat-preserving space and heated to a temperature higher than room temperature before being heated. Bending processing can make the glass get better performance in the hot bending process.

In order to make the processed glass have better performance, the working surfaces of the upper and lower molds of the mold should be cleaned before the mold is loaded into the glass to be heat-bent. Therefore, step S5 further includes:

S5-1. Use high pressure gas to clean the upper and lower molds;

S5-2. Place the glass to be bent on the lower mold and close the mold.

The above-mentioned loading and unloading method will be further explained with reference to the illustrated loading and unloading device.

First, the mold carrying the semi-finished glass that has undergone the heat bending is sent out from the exit of the bending machine and directly enters the heat insulation channel of the rack 100. The mold is maintained at the first temperature higher than room temperature in the heat insulation channel; the transfer mechanism is started 300 Move the mold from the exit of the hot bending machine to the first position where the lifting mold mechanism 200 and the cleaning mechanism 400 are provided; the pressing part of the frame 100 fixes the lower mold of the mold, and starts the lifting mold mechanism 200 to place the mold The upper mold is lifted to complete the mold opening work; the semi-finished glass is removed from the lower mold by using a picking device, and the semi-finished glass is placed in a heating mechanism 500 in a heat preservation space whose temperature is higher than room temperature and lower than the first temperature, so that The semi-finished glass is slowly cooled to prevent problems such as internal stress and cracks. After the semi-finished glass is removed from the lower mold, the cleaning mechanism 400 is started to clean the working surfaces of the upper and lower molds of the mold to remove residues such as dust and broken glass; at the same time, the room temperature state to be bent by a heat is taken using a picking device The glass is sent to the heat-preserving space of another heating mechanism 500 for heating, and the heated glass to be bent is taken out from the heat-preserving space, and the heated glass to be bent is placed in the cleaning mechanism 400 The working surface of the lower mold after cleaning; the lifting mold mechanism 200 is controlled to lower the upper mold to complete the mold clamping work. Finally, the transfer mechanism 300 is controlled to send the mold carrying the glass to be bent from the first position to the entrance of the bending machine to perform the bending process.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limitations on the present invention. Those skilled in the art can interpret the above within the scope of the present invention. Embodiments are subject to change, modification, substitution, and modification.

Claims (34)

1. A loading and unloading device, comprising:

   A rack (100) having a heat-insulating channel; and

   A transfer mechanism (300), which is used to move the mold along the heat preservation channel from the exit of the bending machine to the entrance of the bending machine, so that the mold moves, opens The mold and the clamping process are always maintained at a first temperature higher than room temperature.
2. The loading and unloading device according to claim 1, wherein the loading and unloading device comprises a heating mechanism (500) for removing the glass to be heat-bent or removing it from the mold. The semi-finished glass is maintained at a temperature above room temperature and below the first temperature.
3. The loading and unloading device according to claim 2, wherein the heating mechanism (500) comprises:

   A casing with a cavity, the casing is provided with a window (530) communicating with the cavity;

   A heating element disposed in the housing so that the cavity forms a heat-preserving space having a temperature higher than room temperature and lower than the first temperature; and

   A feeding piece arranged in the housing, the feeding piece being able to carry glass to move in the cavity and pass through the window (530) to pass through the window (530) in the cavity Glass is transferred between the outside of the housing.
4. The loading and unloading device according to claim 3, wherein the feeding member comprises a turntable (502) for supporting the glass, and the turntable (502) can be horizontally rotated about its own axis to pass through the The glass is transferred over a portion of the window (530).
5. The loading and unloading device according to claim 4, wherein the feeding member comprises: a driving member and a rotating shaft (512), and one end of the rotating shaft (512) is vertically fixed at the center of the rotating plate (502), The other end is connected to the driving member to rotate around its own axis under the driving of the driving member.
6. The loading and unloading device according to claim 5, wherein the driving member comprises:

   A driving cylinder having a driving end capable of reciprocating in a length direction thereof;

   A swing arm (517), one end of the swing arm (517) is rotatably sleeved on the rotating shaft (512), and the other end is hinged with the driving end;

   A ratchet (515), which is coaxially fixed on the rotation shaft (512);

   A pawl (522), one end of the pawl (522) is hinged on the swing arm (517), and the other end is matched with the ratchet (515);

   A tension spring (523), one end of the tension spring (523) is connected to the pawl (522), so that the end of the pawl (522) that cooperates with the ratchet (515) is always abutted against On the ratchet (515); and

   A positioner (513), a positioning recess (C) is provided on the rotating shaft (512), the positioner (513) is provided on the housing, and the positioner (513) can communicate with the positioning recess The pit (C) is engaged to prevent the rotating shaft (512) from rotating freely without being driven by the ratchet (515).
7. The loading and unloading device according to claim 3, wherein the housing comprises an upper cover plate (501), a lower bottom plate (524), and a surrounding plate (525), and the surrounding plate (525) is connected to the upper plate The cover plate (501) and the lower floor plate (524) define the cavity together with the upper cover plate (501) and the lower floor plate (524), and are opened at least on the upper cover plate (501) There are openings for forming the window (530).
8. The loading and unloading device according to claim 3, wherein the heating element comprises a plurality of heating tubes and a plurality of thermocouples, and the plurality of heating tubes are disposed in the housing at a distance from each other, The thermocouple is arranged between two adjacent heating pipes.
9. The loading and unloading device according to claim 1, characterized in that the loading and unloading device comprises a hanging die mechanism (200), and the hanging die mechanism (200) is used to align a first position in the heat insulation passage. The mold performs mold opening and closing.
10. The loading and unloading device according to claim 9, characterized in that the hanging die mechanism (200) comprises:

    Mounting seat

    A pick-up member capable of grasping or releasing the upper mold of the mold; and

    A linear module (202), which is disposed on the mounting base, and is configured to drive the pickup in a vertical direction to enable the mold to perform mold opening and closing.
11. The loading and unloading device according to claim 10, wherein the linear module (202) comprises a driving device and a ball screw, a screw of the ball screw is connected to the driving device, and the picking member is connected with Nut connection of the ball screw.
12. The loading and unloading device according to claim 11, wherein the linear module (202) comprises a linear guide for guiding a nut of the ball screw to move.
13. The loading and unloading device according to claim 10, wherein the picking member comprises a suction cup fixing seat (203) and a suction cup (204) provided on the suction cup fixing seat (203), and the suction cup fixing seat (203) 203) The vertical module (202) moves in a vertical direction, and the suction cup (204) is connected to an external vacuum gas source.
14. The loading and unloading device according to claim 13, wherein the suction cup (204) is located at the bottom of the suction cup fixing base (203), and the suction cup (204) is provided with a vacuum suction port (W), The suction cup fixing seat (203) is provided with a cavity communicating with the suction cup (204), and the side wall of the suction cup fixing seat (203) is provided with the cavity and the vacuum suction port (W ) Connected interface (V).
15. The loading and unloading device according to claim 1, characterized in that the loading and unloading device comprises a cleaning mechanism (400), and the cleaning mechanism (400) opens a mold after the mold is opened at a first position in the heat preservation channel. The surface to be cleaned of the upper mold and / or the lower mold of the mold is cleaned.
16. The loading and unloading device according to claim 15, wherein the cleaning mechanism (400) comprises:

    A driving unit including a driving member capable of reciprocating movement; and

    A cleaning member, which is connected to the driving member and is driven by the driving member when the mold is opened to pass the surface to be cleaned of the upper mold and / or the lower mold of the mold and to clean the surface to be cleaned Clean it.
17. The loading and unloading device according to claim 16, wherein the cleaning member comprises an air blowing pipe assembly (406), one end of the air blowing pipe assembly (406) is connected to an external air source, and the other end is used for A high-pressure gas is supplied to the surface to be cleaned to clean the surface to be cleaned.
18. The loading and unloading device according to claim 17, wherein the air blowing pipe assembly (406) comprises an air inlet pipe and a straight pipe connected to the air inlet pipe, and a plurality of air blowing nozzles are provided on the straight pipe.
19. The loading and unloading device according to claim 18, wherein the straight pipe is provided with a plurality of upper blowing nozzles (Y) for supplying high pressure gas to the upper mold and for supplying high pressure to the lower mold. A number of lower gas blowing nozzles (Z).
20. The loading and unloading device according to claim 16, wherein the driving unit comprises a cylinder (401), a linear guide assembly (404), and a piston rod and the linear guide assembly connected to the cylinder (401). The cylinder coupling block (403) of the slider of (404), the cleaning member is arranged on the slider of the linear guide assembly (404) to pass the surface to be cleaned under the driving of the cylinder (401) .
21. The loading and unloading device according to claim 1, wherein the heat preservation channel comprises:

    A first transfer portion for moving the mold between an exit of the hot bending machine and a first position in the heat preservation passage;

    A second transfer portion for moving the mold between the first position and the entrance of the bending machine; and

    And an operation portion provided between the first transfer portion and the second transfer portion, and the first position is located in the operation portion.
22. The loading and unloading device according to claim 21, wherein each of the first and second transfer sections and the operation section has an outer layer having a double-layer structure.
23. The loading and unloading device according to claim 21, wherein the heat insulation channel comprises a guide protrusion for guiding a lower mold of the mold.
24. The loading and unloading device according to claim 23, wherein the frame (100) includes a pressing member, and the pressing member is at least partially disposed in the heat insulation channel to place the pressing member in the first position. The lower mold of the mold is pressed so that the mold can perform a mold opening action.
25. The loading and unloading device according to claim 24, wherein the pressing member comprises a pressing cylinder (117) and a pressing plate connected to a movable end of the pressing cylinder (117), and the pressing cylinder (117) 117) The pressing plate can be driven to press the lower mold of the mold against the guide protrusion, so that the mold can perform a mold opening operation.
26. The loading and unloading device according to claim 21, wherein the frame (100) comprises a cover plate, a bottom plate (123), and a side plate, and the cover plate, the bottom plate (123), and the side plate Together, the insulation channels are defined.
27. The loading and unloading device according to claim 1, wherein the transfer mechanism (300) comprises:

    A main support base, which is arranged between the exit and the entrance of the bending machine;

    A driving cylinder provided on the main support base, the driving cylinder including a slider capable of moving between an exit and an entrance of the hot bending machine; and

    A transfer member provided on the slider, the transfer member being configured to contact an end of the mold and move the mold from the mold during movement with the slider The exit of the bending machine moves to the entrance of the bending machine.
28. The loading and unloading device according to claim 27, wherein the driving cylinder comprises a front driving cylinder and a rear driving cylinder, and the front driving cylinder includes an outlet capable of being located in the bending machine and located in the heat preservation passage. A front slider that moves between a first position of the vehicle, the rear drive cylinder includes a rear slider that can move between the first position and an entrance of the bending machine; the transfer member includes a The forward moving member on the front slider and the backward moving member provided on the rear slider, the forward moving member can move the mold from the hot bending machine with the movement of the front slider. The exit of the moving to the first position, the rearward moving carrier can move the mold from the first position to the entrance of the bending machine with the movement of the rear slider.
29. The loading and unloading device according to claim 28, wherein the front loader and the rear loader each include a lifting mechanism and a fork lifted by the lifting mechanism, and the fork is configured to be capable of It comes into contact with the end side of the mold in a raised state and is spaced apart from the mold in a lowered state.
30. The loading and unloading device according to claim 29, wherein the lifting mechanism comprises a fork cylinder, and the fork is connected to the fork cylinder.
31. The loading and unloading device according to claim 27, wherein the main support base comprises a front support base and a rear support base provided in order between an outlet and an inlet of the hot bending machine, the front drive cylinder and The rear driving cylinders are respectively disposed on the front support base and the rear support base; the front support base and the rear support base are arranged in parallel and spaced from each other, and the front transfer member and the rear transfer member It is located at a space between the front support seat and the rear support seat.
32. A hot bending machine, characterized in that it comprises a hot bending machine body and the loading and unloading device according to any one of claims 1 to 31, wherein the loading and unloading device is arranged between an outlet and an inlet of the hot bending machine body. between.
33. A loading and unloading method, comprising the following steps:

    S1. Take out the mold from the hot bending machine;

    S2, maintaining the mold at a first temperature higher than room temperature, and separating the upper mold and the lower mold of the mold;

    S3. Remove the semi-finished glass from the lower mold, and place the semi-finished glass in a heat-preserving space whose temperature is higher than room temperature and lower than the first temperature;

    S4. Send the glass to be bent to the insulation space for heating;

    S5. Place the heated glass to be bent on the lower mold and close the mold;

    S6. The mold carrying the glass to be heat-bent is sent to a heat-bending machine for processing.
34. The method of claim 33, wherein step S5 comprises:

    S5-1. Use high-pressure gas to clean the upper mold and the lower mold;

    S5-2. Place the glass to be bent on the lower mold and close the mold.

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