Multi-station automotive glass bending device

Abstract

The present invention relates to the field of automotive glass processing, and specifically to a multi-station automotive glass hot bending device, including a frame, a hot bending furnace, a cooling furnace, a guide rail and a conveyor; the hot bending furnace, the cooling furnace and the guide rail are fixedly arranged on the frame, the guide rail is located below the hot bending furnace and the cooling furnace, and cooling furnaces are respectively arranged on both sides of the hot bending furnace, and the bottoms of the hot bending furnace and the cooling furnace are both open; a conveyor is arranged on the guide rail. By setting up multiple stations to work together, the hot bending time and the cooling time are reasonably utilized, and alternating operations are performed to reduce the idle time of the hot bending furnace, improve the heat utilization rate and operating efficiency, and the design structure of the device occupies a small space, which is convenient for large-scale multi-group use at the same time, and has high economic value.

Description

Technical Field

[0001] The invention relates to the field of vehicle glass processing, and in particular to the technical field of structures of a multi-station vehicle glass hot bending device. Background Art

[0002] Automotive glass is usually formed by hot bending or hot pressing.

[0003] The existing glass hot bending forming has a long hot bending operation cycle and after hot bending forming, it is necessary to control the cooling speed of the glass to ensure the forming quality of the glass. Therefore, the cooling time is relatively long. After the hot bending is completed, the glass is transported to the cooling area for a long time of cooling. During this process, the hot bending furnace is in an idle state for a long time. If the heating is continued to maintain a stable temperature, heat is wasted; if the heating is stopped, the temperature inside the furnace body will drop. When it is used again, the temperature needs to be significantly increased again, which increases the operation time and causes heat waste. Summary of the invention

[0004] The purpose of the present invention is to provide a multi-station vehicle glass hot bending device, which is equipped with multiple stations to work together, reasonably utilizes the hot bending time and cooling time, performs alternating operations, reduces the idle time of the hot bending furnace, improves heat utilization and operating efficiency, and the design structure of the device occupies a small space, is convenient for large-scale simultaneous use of multiple groups, and has high economic value.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A multi-station vehicle-mounted glass bending device comprises a frame, a bending furnace, a cooling furnace, guide rails and a conveying piece; the bending furnace, the cooling furnace and the guide rails are fixedly arranged on the frame, the guide rails are located below the bending furnace and the cooling furnace, cooling furnaces are respectively arranged on both sides of the bending furnace, and the bottoms of the bending furnace and the cooling furnace are both open; the conveying piece is arranged on the guide rails.

[0007] Furthermore, the heat bending furnace includes a thermal insulation layer and a first heating element. The thermal insulation layer is arranged on the top wall and side walls of the heat bending furnace; and the first heating element is arranged on the inner top wall of the heat bending furnace.

[0008] Furthermore, a third heating element is arranged on the inner top wall of the cooling furnace.

[0009] Furthermore, the conveying member includes a moving trolley, a mold bearing platform and a negative pressure pump; the moving trolley is connected to the guide rail, the mold bearing platform is arranged on the moving trolley, and the negative pressure pump is arranged at the bottom of the mold bearing platform.

[0010] Furthermore, a bottom supporting mechanism is arranged below the guide rail, the bottom supporting mechanism comprises a bottom supporting member and a telescopic member, the telescopic member is arranged along a setting direction, and the bottom supporting member is connected to the telescopic end of the telescopic member.

[0011] Furthermore, a second heating element is arranged on the inner wall of the hot bending furnace.

[0012] Furthermore, a first protrusion is provided at the bottom of the inner wall of the hot bending furnace.

[0013] Furthermore, heat dissipation holes are arranged on the top wall of the cooling furnace.

[0014] Furthermore, a first groove is arranged in the middle of the movable trolley, and a structure cooperating with the first groove is arranged at the bottom of the mold bearing platform.

[0015] Furthermore, a regulating valve is arranged outside the cooling furnace.

[0016] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0017] 1. By setting up multiple workstations to work together, the hot bending time and cooling time are reasonably utilized, and alternating operations are performed to reduce the idle time of the hot bending furnace, improve heat utilization and operating efficiency, and the design structure of this device occupies a small space, which is convenient for large-scale multi-group use at the same time, and has high economic value.

[0018] 2. Setting the bottom support mechanism and the convex block to work together can improve the heat utilization rate of the hot bending furnace, improve the uniformity of the temperature in the furnace, and improve the forming effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention.

[0020] Figure 2 It is a schematic diagram of another viewing angle of the present invention.

[0021] Figure 3 It is a structural schematic diagram of a working state of the present invention.

[0022] Figure 4 It is a structural schematic diagram of an embodiment of the bottom supporting mechanism in the present invention.

[0023] Figure 5 for Figure 4 A structural diagram of a working state.

[0024] Figure 6 for Figure 3 Schematic diagram of the partially enlarged structure of part A in the middle.

[0025] Figure 7 It is a structural schematic diagram of an embodiment of the guide rail in the present invention.

[0026] Figure 8 It is a structural schematic diagram of the forming mold in the present invention.

[0027] Fig. 9 for Figure 8 A schematic diagram of the structure from another perspective.

[0028] Fig.10 for Figure 8 A structural diagram from another perspective.

[0029] In the figure: 1-frame; 2-hot bending furnace; 21-insulating layer; 22-first heating element; 23-second heating element; 24-first protrusion; 3-cooling furnace; 31-third heating element; 32-second protrusion; 33-heating hole; 34-regulating valve; 4-guide rail; 41-guide rail; 42-driving rail; 5-conveyor; 51-moving trolley; 511-first groove; 52-mold bearing platform; 53-negative pressure pump; 6-bottom supporting mechanism; 61-bottom supporting member; 62-telescopic member; 7-molding mold; 71-first inclined surface area; 72-second curved surface area; 73-third inclined surface area; 74-fourth curved surface area; 75-fifth inclined surface area; 76-ventilation hole; 77-limiting block; 78-third groove. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] Embodiment 1:

[0032] like Figure 1-Figure 10 As shown, a multi-station vehicle-mounted glass bending device comprises a frame 1, a heat bending furnace 2, a cooling furnace 3, a guide rail 4 and a conveying member 5; the heat bending furnace 2, the cooling furnace 3 and the guide rail 4 are fixedly arranged on the frame 1, the guide rail 4 is located below the heat bending furnace 2 and the cooling furnace 3, the cooling furnace 3 is respectively arranged on both sides of the heat bending furnace 2, and the bottoms of the heat bending furnace 2 and the cooling furnace 3 are both open; the conveying member 5 is arranged on the guide rail 4.

[0033] With the hot bending furnace 2 as the center, the multi-station hot bending device is divided into: a left cooling furnace, a left loading area and a right cooling furnace, a right loading area. The conveyor 5 in the left working area is the left conveyor, and the conveyor 5 in the right working area is the right conveyor.

[0034] During operation, in the initial state, the two groups of conveying members 5 are respectively located in the left loading area and the right loading area. The forming mold 7 is first placed on the left conveying member in the left loading area, and then the glass is placed in the forming mold 7. The forming mold 7 and the glass are conveyed to the bottom of the heat bending furnace 2 through the cooperation of the guide rail 4 and the conveying member 5. At this time, the left conveying member stops moving. Under the heating operation of the heat bending furnace 2, the glass gradually completes the forming operation under the guidance of the forming mold 7; then the forming mold and the glass are placed on the right conveying member, and after the glass in the working area completes the heat bending forming in the heat bending furnace 2, the left conveying member 5 moves to the bottom of the cooling furnace 3 for slow cooling (the cooling furnace 3 has certain thermal insulation properties and can reduce the cooling rate). At this time, the heat bending furnace 2 is in No-load state; then the right conveyor transports the glass to be formed to the hot bending furnace 2 for hot bending forming; since the hot bending and cooling operations take a long time, the multi-station operation mode is adopted to reduce the idle gap of the hot bending furnace, reduce the loss of no-load heat of the hot bending furnace, and improve the utilization rate of the hot bending furnace; and to achieve continuous hot bending operation of the hot bending furnace as much as possible, without the need for multiple large-scale temperature rise and fall operations (the hot bending furnace is idle for a long time, resulting in a large-scale temperature rise again after the furnace body cools down), which can greatly save energy consumption and improve the efficiency of glass forming operations; and the device reasonably utilizes the hot bending time and cooling time, and the design structure occupies a small space, which is convenient for large-scale setting of multiple groups of the device to operate simultaneously, greatly improving the operation efficiency and saving costs.

[0035] Embodiment 2:

[0036] like Figure 1-Figure 10 As shown, for the above embodiments, this embodiment optimizes the hot bending furnace structure.

[0037] The heat bending furnace 2 in the multi-station vehicle glass heat bending device includes a heat insulation layer 21 and a first heating element 22. The heat insulation layer 21 is arranged on the top wall and the side wall of the heat bending furnace 2; the first heating element 22 is arranged on the inner top wall of the heat bending furnace 2. The heat insulation layer 21 adopts a combined structure of heat insulation brick masonry and heat insulation cotton, which can reduce the heat dissipation; the first heating lamp 22 is used to heat the inside of the heat bending furnace 2 to provide the necessary operating temperature for molding.

[0038] Embodiment 3:

[0039] like Figure 1-Figure 10 As shown, for the above embodiments, this embodiment optimizes the cooling furnace structure.

[0040] In the multi-station vehicle-mounted glass bending device, a third heating element 31 is arranged on the inner top wall of the cooling furnace 3. The third heating element 31 performs low-temperature heating, which can effectively reduce the cooling rate and improve the glass forming quality.

[0041] Embodiment 4:

[0042] like Figure 1-Figure 10 As shown, with respect to the above embodiments, this embodiment optimizes the structure of the conveying member.

[0043] The conveying member 5 in the multi-station vehicle-mounted glass hot bending device includes a moving trolley 51, a mold bearing platform 52 and a negative pressure pump 53; the moving trolley 51 is connected to the guide rail 4, the mold bearing platform 52 is arranged on the moving trolley 51, and the negative pressure pump 53 is arranged at the bottom of the mold bearing platform 52.

[0044] One implementation of the moving trolley 51 and the guide rail 4 is: the guide rail 4 includes a guide rail 41 and a driving rail 42, the bottom of the moving trolley 51 is fixedly connected to the slider of the guide rail 41 (linear guide), the driving rail 42 is a lead screw, and a driving motor is provided on the moving trolley 51 and is transmission-connected to the nut seat of the lead screw, and the movement along the lead screw is achieved by rotating the driving nut seat.

[0045] Another implementation of the moving trolley 51 and the guide rail 4 is: the guide rail 4 includes a guide rail 41 and a driving rail 42, the bottom of the moving trolley 51 is fixedly connected to the slider of the guide rail 41 (linear guide), the driving rail 42 is a rack, a driving motor is arranged on the moving trolley 51 and is connected to the rack through a gear meshing transmission connection, and the driving gear rotates to realize movement along the rack direction.

[0046] The mold supporting platform 52 is used to support the forming mold 7, and a negative pressure pump 53 is provided. The negative pressure pump 53 is connected to the vent hole 76 in the forming mold 7 through the mold supporting platform 52, so that during the hot bending forming operation, a certain negative pressure is provided to the vent hole 76, thereby improving the forming effect of the glass (during the hot bending deformation process of flat glass, a certain amount of air will be formed between the glass and the forming mold. If it is not discharged in time, bubbles will appear on the formed glass, affecting the forming quality of the glass).

[0047] Embodiment 5:

[0048] like Figure 1-Figure 10 As shown, for the above embodiments, this embodiment optimizes the bottom support structure.

[0049] In the multi-station vehicle-mounted glass bending device, a bottom supporting mechanism 6 is arranged below the guide rail 4, and the bottom supporting mechanism 6 includes a bottom supporting member 61 and a telescopic member 62, the telescopic member 62 is arranged along the setting direction, and the bottom supporting member 61 is connected to the telescopic end of the telescopic member 62. The telescopic member 62 can be a lead screw, and the bottom supporting member 61 is fixedly connected to the lead screw nut seat, and the driving motor drives the lead screw to rotate to realize the lifting and lowering of the bottom supporting member 61.

[0050] When the conveying member 5 moves to the bottom of the corresponding hot bending furnace 2 or cooling furnace 3, the bottom supporting member 61 rises, and the mold carrying platform 52 is lifted (a channel for the bottom supporting member 61 to enter and exit is provided on the conveying trolley 51), so that the mold carrying platform 52 extends into the hot bending furnace 2 as much as possible, which can improve the utilization of heat.

[0051] Embodiment 6:

[0052] like Figure 1-Figure 10 As shown, for the above embodiments, this embodiment optimizes the hot bending furnace structure.

[0053] In the multi-station vehicle glass bending device, a second heating element 23 is arranged on the inner wall of the bending furnace 2. The second heating element 23 is used to provide a supplementary operation for the heating of the first heating element 22, and can quickly increase the temperature in the bending furnace 2, so as to achieve the effect of heating rate and temperature uniformity.

[0054] Preferably, a plurality of temperature sensors are provided at the inner bottom and inner side of the hot bending furnace 2 to detect the temperature condition in the furnace and to control the working state of the heating element according to the monitored temperature.

[0055] Embodiment 7:

[0056] like Figure 1-Figure 10 As shown, with respect to the above embodiments, this embodiment optimizes the sealing structure of the hot bending furnace.

[0057] In the multi-station vehicle glass bending device, a first protrusion 24 is provided at the bottom of the inner wall of the bending furnace 2. Correspondingly, a structure cooperating with the first protrusion 24 is provided at the edge of the mold bearing platform 52, so that when the mold bearing platform 52 is raised, the mold bearing platform 52 and the first protrusion 24 (a layer of heat preservation and heat insulation cotton is covered on the outer surface of the first protrusion 24) are pressed or approached, so that the mold bearing platform 52 and the bending furnace 2 form a closed space, which can reduce heat leakage and improve heat utilization.

[0058] Embodiment 8:

[0059] like Figure 1-Figure 10 As shown, for the above embodiments, this embodiment optimizes the cooling furnace structure.

[0060] In the multi-station vehicle glass bending device, a heat dissipation hole 33 is provided on the top wall of the cooling furnace 3. The heat dissipation hole 33 is used to improve the heat dissipation efficiency and cooperate with the third heating element to achieve the control operation of the heat dissipation efficiency at different periods.

[0061] Embodiment 9:

[0062] like Figure 1-Figure 10 As shown, with respect to the above embodiments, this embodiment optimizes the structure of the conveying member.

[0063] In the multi-station vehicle glass bending device, a first groove 511 is provided in the middle of the mobile trolley 51, and a structure cooperating with the first groove 511 is provided at the bottom of the mold bearing platform 52. The first groove 511 is used to limit the mold bearing platform 52, which can improve the positioning accuracy of the mold bearing platform 52.

[0064] Preferably, the diameter of the first groove 511 gradually decreases vertically downward, which can improve the stability of the mold supporting platform 52 during the ascending or descending process.

[0065] Embodiment 10:

[0066] like Figure 1-Figure 10 As shown, for the above embodiments, this embodiment optimizes the cooling furnace structure.

[0067] In the multi-station vehicle glass bending device, a regulating valve 34 is arranged outside the cooling furnace 3. The regulating valve 34 is arranged to adjust the exhaust volume of the heat dissipation hole 33, so as to adjust the heat dissipation speed by adjusting the regulating valve 34.

[0068] Preferably, the device can be provided with a corresponding PLC controller for controlling the linkage operation of the corresponding components to improve the degree of automation of the device; and accordingly, a robot for loading and unloading glass can be provided to realize fully automated operation of the device.

[0069] Preferably, the forming mold 7 used in the hot bending device, the forming surface of the forming mold 7 includes a first bevel area 71, a second bevel area 72, a third bevel area 73, a fourth bevel area 74 and a fifth bevel area 75 in sequence; the curved surface of the second bevel area 72 is convex upward; the curved surface of the fourth bevel area 74 is concave downward; the inclination of the first bevel area 71 is smaller than the inclination of the bevel of the fifth bevel area 75; the vehicle glass after one-piece molding (the vehicle glass is used for the display screen shell under the front windshield of the car) has different "curvatures" to provide the driver with a wider visualization range without occupying too much display space.

[0070] Preferably, vent holes 76 are provided in the first bevel area 71, the second bevel area 72, the third bevel area 73, the fourth bevel area 74 and the fifth bevel area 75, and the vent holes 76 pass through the molding mold body to facilitate connection with the negative pressure pump in the mold support platform to provide exhaust and heat dissipation effects.

[0071] Preferably, a limiting block 77 is provided on the side of the upper surface of the forming mold 7 to limit the position of the glass, thereby reducing the glass misalignment during the loading and moving process and improving the quality of the product.

[0072] Preferably, a third groove 78 is provided at the bottom of the molding mold 7, and the vent holes 76 are all located in the third groove 78. On the one hand, it is convenient for the molding mold 7 to connect with the mold supporting platform 52. On the other hand, a protruding structure cooperating with the third groove 78 is provided on the mold supporting platform 52, and the air inlet end of the negative pressure pump 53 is provided in the protruding structure, which can enhance the connectivity between the vent holes 76 and the negative pressure pump 53.

[0073] The heating element is a heating component such as an electric heating wire or a natural gas burner, which is used to provide heating heat.

[0074] Although the present invention is described herein with reference to a number of illustrative embodiments of the present invention, it will be appreciated that those skilled in the art may devise many other modifications and implementations that fall within the scope and spirit of the principles disclosed herein. More specifically, within the scope of the present disclosure, drawings, and claims, a variety of variations and modifications may be made to the components and / or layout of the subject combination layout. In addition to the variations and modifications made to the components and / or layout, other uses will also be apparent to those skilled in the art.

Claims

1. Multi-station vehicle glass bending device, characterized by: The invention comprises a frame (1), a hot bending furnace (2), a cooling furnace (3), a guide rail (4) and a conveying member (5); the hot bending furnace (2), the cooling furnace (3) and the guide rail (4) are fixedly arranged on the frame (1); the guide rail (4) is located below the hot bending furnace (2) and the cooling furnace (3); the cooling furnace (3) is respectively arranged on both sides of the hot bending furnace (2); the bottoms of the hot bending furnace (2) and the cooling furnace (3) are both open; the conveying member (5) is arranged on the guide rail (4); the conveying member (5) comprises a moving trolley (51), a mold bearing platform (52) and a negative pressure pump (53); the moving trolley (51) is connected to the guide rail (4); the mold bearing platform (52) and the negative pressure pump (53) are arranged on the moving trolley (51); A mold bearing platform (52) is provided, a negative pressure pump (53) is arranged at the bottom of the mold bearing platform (52), a bottom supporting mechanism (6) is arranged below the guide rail (4), the bottom supporting mechanism (6) comprises a bottom supporting member (61) and a telescopic member (62), the telescopic member (62) is arranged along the height direction, the bottom supporting member (61) is connected to the telescopic end of the telescopic member (62), a first protrusion (24) is arranged at the bottom of the inner side wall of the heat bending furnace (2), the bottom supporting member (61) is raised to lift the mold bearing platform (52), the mold bearing platform (52) and the first protrusion (24) are pressed against or close to each other, so that the mold bearing platform (52) and the heat bending furnace (2) form a closed space.

2. The multi-station vehicle glass bending device according to claim 1, characterized in that: The heat bending furnace (2) comprises a heat insulation layer (21) and a first heating element (22); the heat insulation layer (21) is arranged on the top wall and the side wall of the heat bending furnace (2); and the first heating element (22) is arranged on the inner top wall of the heat bending furnace (2).

3. The multi-station vehicle glass bending device according to claim 1, characterized in that: A third heating element (31) is arranged on the inner top wall of the cooling furnace (3).

4. The multi-station vehicle glass bending device according to claim 1, characterized in that: A second heating element (23) is arranged on the inner wall of the hot bending furnace (2).

5. The multi-station vehicle glass bending device according to claim 3, characterized in that: Heat dissipation holes (33) are provided on the top wall of the cooling furnace (3).

6. The multi-station vehicle glass bending device according to claim 1, characterized in that: A first groove (511) is arranged in the middle of the movable trolley (51), and a structure cooperating with the first groove (511) is arranged at the bottom of the mold bearing platform (52).

7. The multi-station vehicle glass bending device according to claim 1, characterized in that: A regulating valve (34) is arranged outside the cooling furnace (3).

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