Glass forming device

Abstract

The glass forming device comprises a forming mold and a heating mechanism, the forming mold is provided with a mold opening and a mold cavity which communicate with each other, and the mold cavity is used for containing glass raw materials; the heating mechanism comprises a heating piece, and the heating piece is arranged towards the mold opening and used for heating the glass raw materials. Compared with the prior art, the glass forming device has the advantages that the side, facing the mold opening, of the glass raw material does not make contact with the inner wall of the mold cavity, formed finished glass does not need to be polished, and the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of glass processing, in particular to a glass forming device. BACKGROUND

[0002] In the process of glass production, a double-sided mold is usually used to mold the glass raw material, and in the molding process, the two mold surfaces of the double-sided mold are in complete contact with the opposite two surfaces of the glass raw material, so that the opposite two surfaces of the formed glass will produce a fogging phenomenon, resulting in a rough glass surface and affecting the quality of the finished glass; in the traditional technology, the surface of the finished glass needs to be polished, resulting in an increase in production cost. CONTENT OF THE UTILITY MODEL

[0003] Therefore, it is necessary to provide a glass forming device in view of the problem that the surface of the finished glass needs to be polished in the traditional technology, resulting in an increase in production cost.

[0004] The technical scheme is as follows:

[0005] One embodiment provides a glass forming device, comprising:

[0006] a forming mold, the forming mold is provided with a mold opening and a mold cavity in communication, and the mold cavity is used for accommodating the glass raw material; and

[0007] a heating mechanism, the heating mechanism comprises a heating piece, the heating piece is arranged towards the mold opening and is used for heating the glass raw material.

[0008] The glass forming device described above places the glass raw material into the mold cavity through the mold opening of the forming mold, the heating piece is arranged towards the mold opening and heats the glass raw material in the mold cavity, and the glass raw material is heated to form a finished glass, in this process, the surface of the glass raw material towards the mold opening is not in contact with the inner wall of the mold cavity, so that the fogging phenomenon will not occur; compared with the traditional technology, the glass forming device described above is arranged such that the surface of the glass raw material towards the mold opening is not in contact with the inner wall of the mold cavity, so that the finished glass after molding does not need to be polished, thereby reducing the production cost.

[0009] In addition, when the flat glass raw material used by conventional electronic products and automobiles is processed into other 3D contour shapes, the heating source of the mold of the forming device adopts an electric heating form, and more than 90% of the electric energy is used for heating the mold rather than the glass raw material, so that the electric energy cannot be effectively utilized, thereby causing waste of energy and further increasing the production cost; in the application, the heating piece directly heats the glass raw material in the mold cavity through the mold opening, greatly reduces the heat loss, prevents waste of energy, and further reduces the production cost.

[0010] In one of the embodiments, the heating mechanism further comprises a mounting rod, one end of the mounting rod is connected with the heating piece, the first moving mechanism comprises a first driving piece, the first driving piece is drivingly connected with the mounting rod, and the first driving piece can drive the mounting rod to move so as to make the heating piece close to or away from the mold opening.

[0011] In one of the embodiments, the glass forming device further comprises a housing, the housing has a first mounting through hole and a working cavity which are connected in communication, the mounting rod is arranged through the first mounting through hole, the forming mold and the heating piece are arranged in the working cavity, the first moving mechanism further comprises a guide piece and a guide matching piece, the guide piece is arranged on the housing, the axis direction of the first mounting through hole is a first direction, the guide matching piece is arranged on the guide piece and can reciprocate along the first direction, the mounting rod is connected with the guide matching piece, and the first driving piece is arranged on the housing and can drive the mounting rod to reciprocate along the first direction.

[0012] In one of the embodiments, the guide piece is provided with a first guide rail, the first guide rail is arranged in extension along the first direction, the guide matching piece comprises a first guide block, the first guide block is in guide cooperation with the first guide rail and can reciprocate along the first direction, and the mounting rod is connected with the first guide block.

[0013] In one of the embodiments, the glass forming device further comprises a rotating mechanism, the heating mechanism further comprises a mounting frame, the mounting frame is connected with the first moving mechanism, and the mounting rod is rotatably arranged on the mounting frame; the rotating mechanism is arranged on the mounting frame and can drive the mounting rod to rotate.

[0014] In one of the embodiments, the rotating mechanism comprises a second driving piece, a first transmission wheel and a second transmission wheel, the second driving piece is arranged on the mounting frame and is drivingly connected with the first transmission wheel, and the second transmission wheel is sleeved on the mounting rod and is in transmission cooperation with the first transmission wheel.

[0015] In one of the embodiments, the heating mechanism further comprises a gas venting piece, the mounting rod has a gas passage formed in the inside thereof, the gas passage is arranged through opposite ends of the mounting rod, one end of the mounting rod is arranged in the gas venting piece, one passage opening of the gas passage is in communication with a venting opening of the gas venting piece, and the other passage opening of the gas passage is in communication with a combustion cavity of the heating piece; the heating piece is provided with at least two flame nozzles, all the flame nozzles are in communication with the combustion cavity and are arranged towards the mold opening.

[0016] In one of the embodiments, the glass forming device further comprises a vacuum generating mechanism, and the outer wall of the forming die is provided with apertures in communication with the die cavity, and the vacuum generating mechanism is in communication with the apertures.

[0017] In one of the embodiments, the glass forming device further comprises a vacuum generating mechanism, and the forming die is provided with suction channels in communication with the die cavity, and the suction channels are arranged in the bottom wall of the forming die in an array, and the vacuum generating mechanism is in communication with one end of the suction channels away from the die cavity.

[0018] In one of the embodiments, the glass forming device further comprises a second moving mechanism, and the forming die is provided with at least two and connected with the second moving mechanism, and the second moving mechanism can drive all the forming die to move so that the position of one of the forming die can correspond to the position of the vacuum generating mechanism.

[0019] In one of the embodiments, the second moving mechanism comprises a second guide rail and a guide rod, the second guide rail extends along a second direction, the guide rod is provided with a second guide block, the second guide block is in guiding cooperation with the second guide rail, the axial direction of the guide rod is parallel to the second direction and can reciprocate along the second direction, and all the forming die are arranged in an array along the second direction on the guide rod. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort.

[0021] Figure 1 It is an external structure schematic diagram of the glass forming device in one embodiment of the present application.

[0022] Figure 2 It is an internal structure schematic diagram of the glass forming device in one embodiment of the present application.

[0023] Figure 3 It is a structure schematic diagram of the glass forming device in another angle in one embodiment of the present application.

[0024] Figure 4 It is a structure schematic diagram of the glass forming device in another angle in one embodiment of the present application. Figure 3 It is a partial enlarged view of A in FIG.

[0025] Figure 5 It is a structure schematic diagram of the glass forming device in another angle in one embodiment of the present application. Figure 4 It is a structure schematic diagram of B-B section in FIG.

[0026] Figure 6 Fig. 1 is a schematic view of a structure of a forming die according to an embodiment of the present application.

[0027] Brief Description of the Drawings

[0028] 100, housing; 110, working cavity; 120, first mounting through hole; 130, second mounting through hole; 141, first pick-and-place window; 142, second pick-and-place window; 200, forming die; 210, die mouth; 220, die cavity; 231, first working position; 232, second working position; 233, third working position; 300, heating mechanism; 310, mounting rod; 311, gas passage; 320, heating piece; 321, combustion cavity; 330, mounting bracket; 331, mounting sleeve; 332, mounting plate; 333, mounting table; 334, support rod; 340, gas passage piece; 341, gas passage opening; 342, oxygen passage opening; 400, first moving mechanism; 410, guide piece; 420, guide matching piece; 500, rotating mechanism; 510, second driving piece; 520, first transmission wheel; 530, second transmission wheel; 600, vacuum generating mechanism; 700, second moving mechanism; 710, second guide rail; 720, guide rod; 721, second guide block. DETAILED DESCRIPTION

[0029] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of ways other than those specifically described herein, and the present application is not limited to the specific embodiments described below. It is to be understood that other embodiments can be employed and that structural and functional modifications can be made without departing from the scope of the present application.

[0030] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0031] In addition, the terms "first", "second", and the like, if any, are used herein for descriptive purposes only and should not be construed as indicating or implying relative importance or identifying the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0032] In the present application, unless otherwise explicitly specified and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be interpreted broadly. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] In the present application, unless otherwise explicitly specified and limited, if the first feature is described as "on" or "under" the second feature, etc., it can mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be the first feature directly above or obliquely above the second feature, or it can only mean that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" and "below" the second feature can be the first feature directly below or obliquely below the second feature, or it can only mean that the first feature is lower than the second feature in horizontal height.

[0034] It should be noted that if an element is referred to as "fixed to" or "provided on" another element, it can be directly on another element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for illustrative purposes and do not represent the only implementation.

[0035] Please refer to Figure 2 and Figure 6 An embodiment of the present application provides a glass forming device, comprising a forming mold 200 and a heating mechanism 300, the forming mold 200 is provided with a mold opening 210 and a mold cavity 220 in communication, the mold cavity 220 is used to accommodate glass raw materials; the heating mechanism 300 comprises a heating piece 320, the heating piece 320 is arranged towards the mold opening 210 and is used to heat the glass raw materials.

[0036] The glass forming device described above places the glass raw material into the mold cavity 220 through the mold opening 210 of the forming mold 200, and the heating member 320 is arranged towards the mold opening 210 and heats the glass raw material in the mold cavity 220. The glass raw material is heated to form the finished glass. During the process, the side of the glass raw material facing the mold opening 210 is not in contact with the inner wall of the mold cavity 220, so no fogging phenomenon occurs. Compared with the traditional technology, the glass forming device described above arranges the side of the glass raw material facing the mold opening 210 not to be in contact with the inner wall of the mold cavity 220, so that the finished glass after forming does not need to be polished, thereby reducing the production cost.

[0037] In addition, when the flat glass raw material used in conventional electronic products and automobiles is processed into other 3D profile shapes, the heating source of the mold of the forming device adopts an electric heating form. More than 90% of the electric energy is used for heating the mold rather than heating the glass raw material, which cannot effectively utilize the electric energy, thereby causing waste of energy and further increasing the production cost. In the present application, the heating member 320 directly heats the glass raw material in the mold cavity 220 through the mold opening 210, greatly reducing heat loss, preventing energy waste, and further reducing production cost.

[0038] Further, please refer to Figure 2 and Figure 6 When the glass forming device described above is used, the glass raw material is first placed in the mold cavity 220 through the mold opening 210. Since the mold opening 210 and the mold cavity 220 of the forming mold 200 are in communication with each other, the heat emitted by the heating member 320 can directly enter the mold cavity 220 through the mold opening 210 and heat the glass raw material in the mold cavity 220. During the process, since the side of the glass raw material facing the mold opening 210 is not in contact with the inner wall of the mold cavity 220, the side of the glass raw material facing the mold opening 210 will not produce a fogging phenomenon, so the glass raw material does not need to be polished, thereby reducing the production cost.

[0039] Further, the glass forming device in the above embodiment is specifically a glass 3D hot bending forming device.

[0040] In addition, in the conventional technology, the side of the glass raw material in contact with the mold is prone to fogging, resulting in a rough surface of the glass raw material in contact with the mold, which affects the quality of the finished glass. In order to solve this problem, the heating temperature of the glass raw material needs to be controlled to ensure that the heating temperature of the glass raw material is greater than the bending temperature of the glass raw material and less than the annealing temperature of the glass raw material. In this way, the glass raw material can not only be heated and softened to match the shape of the mold cavity 220, but also prevent the side of the glass raw material in contact with the mold cavity 220 from fogging.

[0041] Please refer toFigure 2 In one embodiment, the glass forming device further comprises a first moving mechanism 400 connected with the heating member 320 and configured to drive the heating member 320 to approach or move away from the mold opening 210.

[0042] The first moving mechanism 400 can drive the heating member 320 to approach or move away from the mold opening 210, so as to control the heating member 320 to approach or move away from the glass raw material in the mold cavity 220, and further control the heating temperature of the glass raw material, so that the heating temperature of the glass raw material is in a suitable range, and the side of the glass raw material in contact with the bottom wall of the mold cavity 220 is prevented from fogging; the side of the glass raw material facing the mold opening 210 is not in contact with the mold, and thus does not cause fogging. In this way, the distance between the glass raw material and the heating member 320 is controlled by the first moving mechanism 400, so that the heating temperature of the glass raw material is in a suitable range, and the other side of the glass raw material is not in contact with the mold, thereby preventing the two sides of the glass raw material from fogging, and the finished glass product does not need to be polished, thereby reducing the production cost.

[0043] By way of explanation, the fogging of the glass refers to the phenomenon that the surface gloss of the glass is not enough due to the rough surface in the production process. Since the bending temperature and the annealing temperature of different types of glass raw materials are different, in this application, the heating temperature of the glass raw material is controlled by controlling the heating member 320 to approach or move away from the mold opening 210, so as to ensure that the heating temperature of the glass raw material is greater than the bending temperature and less than the annealing temperature of the glass raw material, and the side of the glass raw material in contact with the mold cavity 220 is prevented from fogging to affect the quality of the finished glass product.

[0044] By way of example, the annealing temperature of a certain glass raw material is 530℃, and the softening temperature is 470℃. By controlling the heating member 320 to approach or move away from the mold opening 210 to adjust the heating temperature of the glass raw material, the heating temperature is between 470℃ and 530℃. In this way, the glass raw material can not only be heated and softened to match the shape of the mold cavity 220, but also prevent the side of the glass raw material in contact with the mold cavity 220 from fogging to affect the quality of the finished glass product.

[0045] In one embodiment, the mold cavity 220 is provided with a temperature monitoring member (not shown in the figure) for monitoring the heating temperature of the glass raw material in the mold cavity 220. When the temperature monitoring member monitors that the current heating temperature is greater than the annealing temperature of the current type of glass raw material, the worker controls the heating member 320 to move away from the mold opening 210 by the first moving mechanism 400, so as to reduce the heating temperature of the glass raw material, so that the heating temperature of the current glass raw material is lower than the annealing temperature, preventing the glass raw material from fogging; when the temperature monitoring member monitors that the current heating temperature is less than the bending temperature of the current type of glass raw material, the worker controls the heating member 320 to move close to the mold opening 210 by the first moving mechanism 400, so as to increase the heating temperature of the glass raw material, so that the heating temperature of the current glass raw material is higher than the bending temperature, ensuring that the glass raw material can be normally bent and formed.

[0046] In other embodiments, the heating temperature of the glass raw material can also be ensured to be greater than the bending temperature and less than the annealing temperature by on-site testing, and the implementation is as follows: the glass raw material to be processed is placed in the mold cavity 220 through the mold opening 210, and the heating member 320 normally heats the glass raw material. If the surface of the finished product glass produced is foggy, it indicates that the current heating temperature is greater than the annealing temperature of the current type of glass raw material. At this time, the worker controls the heating member 320 to move away from the mold opening 210 by the first moving mechanism 400 to reduce the heating temperature of the glass raw material, and then heats the glass raw material again. If the glass raw material cannot be normally bent, it indicates that the current heating temperature is less than the bending temperature of the current type of glass raw material. At this time, the worker controls the heating member 320 to move close to the mold opening 210 by the first moving mechanism 400 to increase the heating temperature of the glass raw material. This is repeated until the glass raw material in the mold cavity 220 can be normally bent and will not fog, so as to determine the optimal distance between the heating member 320 and the mold opening 210.

[0047] Optionally, the heating method of the heating member 320 to the glass raw material can be resistance heating, or can be flame heating or laser heating, etc., which is not limited here.

[0048] Optionally, the temperature monitoring member can be a thermocouple, an infrared thermometer, a thermistor, etc., which is not limited here. Preferably, an infrared thermometer is adopted. This temperature monitoring method does not need to be in direct contact with the glass raw material, and will not interfere with the forming of the glass raw material.

[0049] Please refer to Figure 2 In one embodiment, the heating mechanism 300 further comprises a mounting rod 310, one end of the mounting rod 310 being connected with the heating member 320, and the first moving mechanism 400 comprising a first driving member in driving connection with the mounting rod 310. The first driving member can drive the mounting rod 310 to move, so as to make the heating member 320 move close to or away from the mold opening 210.

[0050] The first driving component moves the mounting rod 310, thereby controlling the heating component 320 to move closer to or further away from the mold opening 210, resulting in low implementation cost.

[0051] Furthermore, the first driving member can drive the mounting rod 310 to move along the axial direction of the mounting rod 310 so that the heating element 320 moves closer to or further away from the mold opening 210.

[0052] Please see Figures 1 to 2 In one embodiment, the glass forming apparatus further includes a housing 100, which has a communicating first mounting through hole 120 and a working cavity 110. A mounting rod 310 passes through the first mounting through hole 120. The forming mold 200 and the heating element 320 are both disposed within the working cavity 110. The first moving mechanism 400 further includes a guide member 410 and a guide mating member 420. The guide member 410 is disposed within the housing 100, and the axial direction of the first mounting through hole 120 is set as the first direction (i.e.,...). Figure 2 (Z direction in the first direction), guide mating part 420 is provided on guide part 410 and can reciprocate along the first direction, mounting rod 310 is connected to guide mating part 420, and first driving member is provided on housing 100 and can drive mounting rod 310 to reciprocate along the first direction.

[0053] The forming mold 200 is located inside the working cavity 110 of the housing 100, thereby isolating the glass raw material from the outside environment during the glass forming process. The glass raw material is placed into the mold cavity 220 through the mold opening 210. The heating element 320 is positioned facing the mold opening 210 and heats the glass raw material in the mold cavity 220. The glass raw material is heated to form the finished glass. Under the guidance of the guide fitting 420 and the guide member 410, the heating element 320 located at one end of the mounting rod 310 can reciprocate along the first direction. The first driving member is the mounting rod 310. The reciprocating movement along the first direction provides power so that the heating element 320 can move closer to or further away from the mold opening 210, thereby adjusting the heating temperature of the glass raw material and keeping it within a suitable range. This prevents fogging on the side of the glass raw material that is in contact with the bottom wall of the mold cavity 220; while the side of the glass raw material facing the mold opening 210 is not in contact with the mold, so fogging will not occur. This configuration has low implementation cost and can prevent fogging on both sides of the glass raw material, eliminating the need for polishing the finished glass after molding and reducing production costs.

[0054] For illustrative purposes, the first direction in the above embodiment is the height direction of the housing 100.

[0055] In one embodiment, the first driving member comprises a driving motor, a lead screw and a nut pair. The lead screw is in driving connection with the driving motor, so that the driving motor can drive the lead screw to rotate. The nut pair is sleeved on the lead screw and threadedly matched with the lead screw. The mounting rod 310 is connected with the nut pair. In this way, when the driving motor drives the lead screw to rotate, the nut pair can reciprocate along the axial direction of the lead screw under the thread cooperation of the nut pair and the lead screw, thereby driving the mounting rod 310 connected with the nut pair to move.

[0056] In other embodiments, the first driving member can also be a chain elevator or the like, as long as it can drive the mounting rod 310 to reciprocate along the first direction. Details are not described herein.

[0057] Please refer to Figure 4 In one embodiment, the guide member 410 is provided with a first guide rail extending along the first direction. The guide fitting member 420 comprises a first guide block in guide fitting with the first guide rail and capable of reciprocating along the first direction. The mounting rod 310 is connected with the first guide block.

[0058] Under the guide action of the first guide block and the first guide rail, the reciprocating movement of the mounting rod 310 along the first direction is more stable.

[0059] Further, the first guide block is provided with at least two first guide blocks to improve the connection strength between the mounting rod 310 and the first guide block and the movement stability of the mounting rod 310.

[0060] Please refer to Figure 4 and Figure 5 In one embodiment, the glass forming device further comprises a rotating mechanism 500. The heating mechanism 300 further comprises a mounting bracket 330. The mounting bracket 330 is connected with the first moving mechanism 400. The mounting rod 310 is rotatably arranged on the mounting bracket 330. The rotating mechanism 500 is arranged on the mounting bracket 330 and can drive the mounting rod 310 to rotate.

[0061] The guide member 410 is connected with the mounting bracket 330 to realize the reciprocating movement of the mounting bracket 330 along the first direction. The rotating mechanism 500 can drive the mounting rod 310 to rotate on the mounting bracket 330, thereby driving the heating member 320 arranged on the mounting rod 310 to rotate, so as to more uniformly heat the glass raw material in the mold cavity 220.

[0062] Please refer to Figure 4 and Figure 5 In one embodiment, the rotating mechanism 500 comprises a second driving member 510, a first transmission wheel 520 and a second transmission wheel 530. The second driving member 510 is arranged on the mounting bracket 330 and in driving connection with the first transmission wheel 520. The second transmission wheel 530 is sleeved on the mounting rod 310 and in transmission cooperation with the first transmission wheel 520.

[0063] The second transmission wheel 530 is sleeved on the mounting rod 310 and is in transmission cooperation with the first transmission wheel 520. Thus, when the second driving member 510 drives the first transmission wheel 520 to rotate, the second transmission wheel 530 drives the mounting rod 310 to rotate under the transmission action of the first transmission wheel 520 and the second transmission wheel 530, and further drives the heating member 320 to rotate.

[0064] In one embodiment, the first transmission wheel 520 and the second transmission wheel 530 are both gears to realize the meshing transmission between the first transmission wheel 520 and the second transmission wheel 530. In other embodiments, the first transmission wheel 520 and the second transmission wheel 530 can also be transmitted through a transmission belt, a transmission chain or the like, which will not be described herein.

[0065] Please refer to Figure 4 In one embodiment, the mounting frame 330 includes a mounting sleeve 331, a mounting plate 332 and a mounting table 333. One side of the mounting plate 332 is connected with the guide member 410, and the other side of the mounting plate 332 is connected with the mounting sleeve 331. The mounting sleeve 331 is sleeved on the mounting rod 310 to enable the mounting rod 310 to rotate relative to the mounting sleeve 331. The mounting table 333 is arranged at the upper portion of the mounting sleeve 331. The second driving member 510 is arranged on the mounting table 333. The first transmission wheel 520 is arranged at the output portion of the second driving member 510. The second transmission wheel 530 is sleeved on one end of the mounting rod 310 and is in meshing cooperation with the first transmission wheel 520.

[0066] Further, the mounting frame 330 further includes a support rod 334. The support rod 334 is provided with at least two and is arranged in a circumferential direction of the mounting sleeve 331. The end of the support rod 334 away from the mounting sleeve 331 is connected with the mounting table 333.

[0067] Please refer to Figure 4 In one embodiment, the heating mechanism 300 further includes a gas venting member 340. The mounting rod 310 is internally formed with a gas passage 311. The gas passage 311 is arranged through opposite ends of the mounting rod 310. One end of the mounting rod 310 is arranged at the gas venting member 340. One passage opening of the gas passage 311 is in communication with a venting opening of the gas venting member 340. The other passage opening of the gas passage 311 is in communication with the combustion cavity 321 of the heating member 320. The heating member 320 is provided with at least two flame nozzles. All the flame nozzles are in communication with the combustion cavity 321 and are arranged towards the mold opening 210.

[0068] The gas enters the gas passage 311 through the gas venting member 340 and flows to the heating member 320. After the gas is combusted to generate a flame, the flame is sprayed out through the flame nozzles, and further heats the glass raw material in the mold cavity 220.

[0069] Further, the gas venting piece 340 is provided with two venting openings, i.e. a gas venting opening 341 and an oxygen venting opening 342, through which gas and oxygen are respectively introduced into the gas passage 311 to realize sufficient combustion heating.

[0070] Optionally, the gas can be natural gas, hydrogen, methane or other combustible gas.

[0071] In an embodiment, the heating piece 320 comprises a heating disc, and at least two flame nozzles are arranged on the disc surface of the heating disc. When the rotation mechanism 500 drives the heating disc to rotate, more comprehensive and uniform heating of the glass raw material in the mold cavity 220 can be realized.

[0072] Further, by changing the size of the heating disc and the size of the forming mold 200, the glass forming device can be compatible with the production of products with a width of 100mm-2000mm, and has strong applicability.

[0073] Please refer to Figures 1 to 3 In an embodiment, the glass forming device further comprises a vacuum generating mechanism 600, and the outer wall of the forming mold 200 is provided with an aperture communicating with the mold cavity 220, and the vacuum generating mechanism 600 communicates with the aperture.

[0074] When the glass raw material is located in the mold cavity 220 and is heated to bend, the vacuum generating mechanism 600 performs vacuumization on the glass raw material in the mold cavity 220 through the aperture on the outer wall of the forming mold 200, so that the bent glass raw material can closely fit the cavity wall of the mold cavity 220, and the matching degree of the shape of the bent glass and the shape of the forming mold 200 is higher, thereby improving the forming effect of the glass.

[0075] Further, please refer to Figures 1 to 3 The housing 100 is provided with a suction through hole, and the vacuum generating mechanism 600 is arranged in the housing 100 and communicates with the suction through hole, and the suction through hole communicates with the aperture.

[0076] In this way, the vacuum generating mechanism 600 sequentially performs vacuumization on the glass raw material in the mold cavity 220 through the suction through hole of the housing 100 and the aperture on the outer wall of the forming mold 200, so that the bent glass raw material can closely fit the cavity wall of the mold cavity 220.

[0077] Further, the forming mold 200 is a graphite mold, graphite has a certain porosity, thereby forming a plurality of pores on the outer surface of the graphite mold, when the thickness of the graphite is less than 8mm, the gas can enter and exit the mold cavity 220 through the pores; in the embodiment, the vacuum generating mechanism 600 sucks the pores on the forming mold 200 through the suction through hole, thereby vacuumizing the mold cavity 220 and the glass raw material, so that the glass raw material is tightly attached to the cavity wall of the mold cavity 220.

[0078] Please refer to Figures 1 to 3 In other embodiments, the glass forming device further comprises a vacuum generating mechanism 600, the forming mold 200 is provided with a suction channel communicating with the mold cavity 220, the suction channel is provided with a plurality of suction channels arranged in an array on the bottom wall of the forming mold 200, and the vacuum generating mechanism 600 is in communication with one end of the suction channel away from the mold cavity 220.

[0079] When the glass raw material is located in the mold cavity 220 and is heated to bend, the vacuum generating mechanism 600 vacuums the glass raw material in the mold cavity 220 through the plurality of suction channels on the bottom wall of the forming mold 200, so that the bent glass raw material can be tightly attached to the cavity wall of the mold cavity 220, and the matching degree of the shape of the bent glass and the shape of the forming mold 200 is higher, thereby improving the glass forming effect.

[0080] Please refer to Figures 1 to 3 In other embodiments, the housing 100 is provided with a suction through hole, the vacuum generating mechanism 600 is arranged in the housing 100 and is in communication with the suction through hole, and the suction through hole is in communication with one end of the suction channel away from the mold cavity 220.

[0081] Further, the bottom wall of the forming mold 200 is provided with a vacuum groove, the vacuum groove is arranged towards the suction through hole and is in communication with the suction through hole, and the suction channel or the pores are arranged at the groove bottom of the vacuum groove, and the mold cavity 220 above the vacuum groove is vacuumized by generating a vacuum in the vacuum groove, thereby further improving the glass forming effect.

[0082] Please refer to Figure 2 In one embodiment, the glass forming device further comprises a second moving mechanism 700, the forming mold 200 is provided with at least two and is connected with the second moving mechanism 700, and the second moving mechanism 700 can drive all the forming molds 200 to move, so that the position of one of the forming molds 200 can correspond to the position of the vacuum generating mechanism 600.

[0083] The at least two forming molds 200 can move in the installation cavity under the driving of the second moving mechanism 700, thereby continuously heating the glass raw material in each forming mold 200, and improving the heating efficiency of the glass raw material.

[0084] Please refer toFigure 2 In one embodiment, the forming molds 200 are provided at the bottom wall of the working cavity 110 in the second direction (i.e. the X direction in the figure) of the housing 100, and all the forming molds 200 are capable of reciprocating in the second direction, so that the position of one of the forming molds 200 can correspond to the position of the suction hole. Figure 2

[0085] The at least two forming molds 200 are capable of reciprocating in the second direction in the installation cavity, so that the glass raw material in each of the forming molds 200 can be continuously heated, and the heating efficiency of the glass raw material is improved.

[0086] As an explanation, the second direction in the above embodiment is the length direction of the housing 100.

[0087] Further, in the embodiment, when the heating member 320 heats the glass raw material in one of the forming molds 200, the heat dissipated can also preheat the glass raw material in the other forming molds 200 which are not heated, so as to shorten the heating time of the glass raw material in each of the forming molds 200, improve the production efficiency, and reduce the production cost.

[0088] Please refer to Figures 1 to 3 In one embodiment, the second moving mechanism 700 includes a second guide rail 710 and a guide rod 720, the second guide rail 710 extends in the second direction, the guide rod 720 is provided with a second guide block 721, the second guide block 721 is in guiding cooperation with the second guide rail 710, the axial direction of the guide rod 720 is parallel to the second direction and is capable of reciprocating in the second direction, and all the forming molds 200 are spaced apart in the second direction on the guide rod 720.

[0089] The second guide block 721 is in guiding cooperation with the second guide rail 710, so as to drive the guide rod 720 to reciprocate in the second direction in the second installation hole 130, and then drive the forming molds 200 in the installation cavity to move to the positions corresponding to the suction holes in sequence, so as to heat and vacuumize the glass raw material in the mold cavity 220 of the forming mold 200. Through the guiding cooperation between the second guide rail 710 and the second guide block 721, the movement of the forming molds 200 in the installation cavity is more stable and reliable.

[0090] Further, the glass forming mechanism further includes a third driving member for driving the second guide block 721 to reciprocate on the second guide rail 710, and the specific arrangement is similar to the first driving member, which will not be described here.

[0091] Please refer to Figure 2 ​In one embodiment, the forming mold 200 is provided with two molds, namely a first mold and a second mold, and the working cavity 110 is provided with a first working position 231, a second working position 232 and a third working position 233 along the second direction, and the heating mechanism 300 corresponds to the second mounting position. Please refer to Figure 1 One side of the shell 100 is provided with a first taking and placing window 141 and a second taking and placing window 142, the first taking and placing window 141 corresponds to the first working position 231, and the second taking and placing window 142 corresponds to the third working position 233. The first mold and the second mold are detachably arranged on the guide rod 720. In this way, when the first mold is located at the first working position 231 and the second mold is located at the second working position 232, the heating mechanism 300 heats the glass raw material in the second mold, and the staff can disassemble the first mold through the first taking and placing window 141 and place new glass raw material. When the glass raw material in the second mold is heated, the guide rod 720 is moved to move the first mold to the third working position 233 and the second mold to the second working position 232. The staff takes and places the second mold at the third working position 233 through the second taking and placing window 142 to perform the next process on the heated glass raw material, and at the same time, new glass raw material is added to the second mold. When the glass raw material in the second mold is heated, the guide rod 720 is moved to move the first mold to the first working position 231 and the second mold to the second working position 232. In this way, the heating is repeated to improve the production efficiency.

[0092] When the glass forming device is used to form 3D glass, the following steps are included:

[0093] S1, the glass raw material is placed in the working cavity 110 of the forming mold 200, and the rotation and lifting of the heating mechanism 300 make the heating temperature of the glass within a reasonable range and uniformly heated.

[0094] S2, the vacuum generating mechanism 600 forms a vacuum pressure difference to make the heated glass raw material further conform.

[0095] S3, the glass is taken out after cooling.

[0096] S4, the cooled glass is cut, and the cut glass is placed in a tempering furnace, soaked in a pure potassium salt solution for sufficient ion exchange strengthening reaction to obtain finished glass.

[0097] Optionally, the cutting method can be 3D laser cutting or CNC (flame cutting machine) cutting. The laser cutting method used is picosecond infrared laser, the laser point spacing is 5-7um, and the laser power is 40-60w. The CNC drill bit is plated with sand, which is diamond, the mesh number is 1000, and the rotation speed is 20000±200r / min.

[0098] Further, the glass is soaked in a 420℃ pure potassium salt solution for 450±50min to improve the strength of the product.

[0099] S5, white sheet product substrate performance detection is performed on the finished glass, including detection of the appearance, surface profile PV value and surface roughness of the finished glass.

[0100] Further, the white sheet product substrate performance detection includes the following steps: ① visual inspection of the optical appearance of the product under a desk lamp; ② measurement of the surface profile (PV value) of the glass by a three-coordinate measuring instrument; ③ testing of the surface roughness of the product by a roughness meter.

[0101] In one embodiment, the glass raw material is high-aluminum silicon, sodium-calcium, high-boron silicon glass, etc., preferably high-boron silicon glass, which has good thermal shock resistance.

[0102] Further, the thickness of the glass raw material is 0.5-5.0mm.

[0103] In one embodiment, the glass raw material also needs to be edge-shaped processed by edge grinding cutting, and the edge grinding machine roller is plated with diamond, the mesh is 400 mesh, and the roller speed is 8000±200rpm.

[0104] In one embodiment, the forming method of the glass raw material in the mold is self-weight forming or vacuum negative pressure forming; the forming temperature is 560-580℃, and the beat is 600±100s; the forming temperature and beat are adjusted according to the thickness of the glass raw material, and the judgment standard is that the glass product has no appearance defects such as fogging, and the surface profile PV value meets the tolerance requirements.

[0105] The glass forming device in any of the above embodiments is used to produce a product with a surface roughness (Ra) of less than 10nm, good appearance and no defects such as fogging, effectively saving heating energy consumption.

[0106] The technical features of the above embodiments can be combined in any way, and to make the description concise, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the description.

[0107] The above embodiments only express several implementation ways of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A glass forming apparatus, characterized by, The application relates to a glass forming device. The glass forming device comprises a forming die, a heating mechanism, a first moving mechanism and a vacuum generating mechanism. The forming die is provided with a die opening and a die cavity in communication, and the die cavity is used for accommodating glass raw materials. The heating mechanism comprises a heating piece arranged towards the die opening and used for heating the glass raw materials. The first moving mechanism is connected with the heating piece and used for driving the heating piece to approach or move away from the die opening.

2. The glass forming apparatus of claim 1, wherein, The vacuum generating mechanism is in communication with a hole in the outer wall of the forming die and in communication with the die cavity.

3. The glass forming apparatus of claim 2, wherein, The heating mechanism further comprises a mounting rod, one end of the mounting rod is connected with the heating piece, the first moving mechanism comprises a first driving piece, the first driving piece is drivingly connected with the mounting rod, and the first driving piece can drive the mounting rod to move so that the heating piece approaches or moves away from the die opening.

4. The glass forming apparatus of claim 3, wherein, The glass forming device further comprises a shell, the shell has a first mounting through hole and a working cavity in communication, the mounting rod is arranged in the first mounting through hole, the forming die and the heating piece are arranged in the working cavity, the first moving mechanism further comprises a guide piece and a guide matching piece, the guide piece is arranged in the shell, the axis direction of the first mounting through hole is a first direction, the guide matching piece is arranged in the guide piece and can reciprocate along the first direction, the mounting rod is connected with the guide matching piece, and the first driving piece is arranged in the shell and can drive the mounting rod to reciprocate along the first direction.

5. The glass forming apparatus of claim 2, wherein, The guide piece is provided with a first guide rail, the first guide rail is arranged along the first direction, the guide matching piece comprises a first guide block, the first guide block is in guide cooperation with the first guide rail and can reciprocate along the first direction, and the mounting rod is connected with the first guide block.

6. The glass forming apparatus of claim 5, wherein, The glass forming device further comprises a rotating mechanism, the heating mechanism further comprises a mounting frame, the mounting frame is connected with the first moving mechanism, the mounting rod is rotatably arranged in the mounting frame, and the rotating mechanism is arranged in the mounting frame and can drive the mounting rod to rotate.

7. The glass forming apparatus of claim 2, wherein, The rotating mechanism comprises a second driving piece, a first transmission wheel and a second transmission wheel, the second driving piece is arranged in the mounting frame and drivingly connected with the first transmission wheel, and the second transmission wheel is sleeved on the mounting rod and in transmission cooperation with the first transmission wheel. The heating mechanism further comprises a gas ventilation piece, the mounting rod is internally formed with a gas passage, the gas passage is arranged through opposite ends of the mounting rod, one end of the mounting rod is arranged in the gas ventilation piece, one passage opening of the gas passage is in communication with a ventilation opening of the gas ventilation piece, and the other passage opening of the gas passage is in communication with a combustion cavity of the heating piece. The heating piece is provided with at least two flame nozzles, all the flame nozzles are in communication with the combustion cavity and arranged towards the die opening.

8. The glass forming apparatus of claim 1, wherein, The glass forming device further comprises a vacuum generating mechanism, the forming die is provided with suction channels in communication with the die cavity, the suction channels are arranged in an array on the bottom wall of the forming die, and the vacuum generating mechanism is in communication with one end of the suction channels away from the die cavity.

9. The glass forming apparatus of claim 1, wherein, The glass forming device further comprises a second moving mechanism, the forming die is provided with at least two forming dies connected with the second moving mechanism, and the second moving mechanism can drive all the forming dies to move so that the position of one of the forming dies can correspond to the position of the vacuum generating mechanism.

10. The glass forming apparatus of claim 9, wherein, The second moving mechanism comprises a second guide rail and a guide rod, the second guide rail extends along a second direction, the guide rod is provided with a second guide block, the second guide block is in guiding cooperation with the second guide rail, the axial direction of the guide rod is parallel to the second direction and the guide rod can reciprocate along the second direction, and all the forming dies are arranged in an array along the second direction on the guide rod.

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