CN116177859A

CN116177859A - Hot-press forming device

Info

Publication number: CN116177859A
Application number: CN202310412917.1A
Authority: CN
Inventors: 王斌
Original assignee: Ya'an Gelasi Optoelectronic Science And Technology Co ltd
Current assignee: Ya'an Gelasi Optoelectronic Science And Technology Co ltd
Priority date: 2023-04-18
Filing date: 2023-04-18
Publication date: 2023-05-30

Abstract

The invention discloses a hot press forming device, and relates to the technical field of hot press forming. The hot-press forming device comprises a frame, a fixed die holder, a movable die holder, a lifting piece, a first electromagnetic heating coil, a second electromagnetic heating coil and a telescopic mechanism. The lifting piece is installed on the frame and is connected with the movable die holder, the telescopic mechanism is installed on the frame and is connected with the first electromagnetic heating coil and the second electromagnetic heating coil, the first electromagnetic heating coil and the second electromagnetic heating coil are arranged at intervals in parallel, and the telescopic mechanism is used for driving the first electromagnetic heating coil and the second electromagnetic heating coil to extend between the movable die holder and the fixed die holder when the die is opened, so that the first electromagnetic heating coil carries out electromagnetic induction heating on the movable die holder, and the second electromagnetic heating coil carries out electromagnetic induction heating on the fixed die holder. The hot press forming device provided by the invention can improve the uniformity of the heating temperature of the press forming part, ensure the press forming quality of products, enhance the press forming effect, improve the yield, and is practical and reliable.

Description

Hot-press forming device

Technical Field

The invention relates to the technical field of hot press forming, in particular to a hot press forming device.

Background

At present, in the production process of glass products, a molding press is generally used for carrying out hot press molding on a glass blank after being heated and softened so as to obtain the glass products, in the process, a molding part (such as a female die and a male die) for molding in the molding press is required to be heated, and at present, the heating is generally carried out in a gas combustion mode, but the heating temperature of the molding part is uneven due to uneven temperature distribution of flame combustion, so that the molding quality of the glass products is affected, the molding effect is poor, the yield is low, particularly, when large-size glass products (such as large-size wafers) are produced, the influence caused by the temperature unevenness is particularly remarkable, and even fatal defects such as cracking of the glass products can be caused.

In view of this, it is important to design and manufacture a hot press molding apparatus having a uniform heating temperature, especially in the production of molding presses.

Disclosure of Invention

The invention aims to provide a hot press forming device which can improve the uniformity of heating temperature of a press forming part, ensure the press forming quality of products, enhance the press forming effect, improve the yield and is practical and reliable.

The invention is realized by adopting the following technical scheme.

The utility model provides a hot briquetting device, which comprises a frame, the die holder, the movable die holder, the lifting piece, a first electromagnetic heating coil, second electromagnetic heating coil and telescopic machanism, the lifting piece is installed in the frame, and be connected with the movable die holder, the movable die holder sets up in the top of fixed die holder, the lifting piece is used for driving the movable die holder and is close to or keep away from the fixed die holder, in order to realize the compound die or open the mould, telescopic machanism installs in the frame, and be connected with a electromagnetic heating coil and a electromagnetic heating coil, a electromagnetic heating coil and a electromagnetic heating coil parallel interval setting, telescopic machanism is used for driving a electromagnetic heating coil and a electromagnetic heating coil of second and stretches to between movable die holder and the cover half seat when the mould is opened, in order to make a electromagnetic heating coil carry out electromagnetic induction heating to the movable die holder, and make a electromagnetic heating coil carry out electromagnetic induction heating to the cover half seat.

Optionally, the telescopic machanism includes first flexible subassembly and the flexible subassembly of second, and first flexible subassembly and the flexible subassembly of second are all installed in the frame, and first flexible subassembly is connected with first electromagnetic heating coil, and the flexible subassembly of second is connected with second electromagnetic heating coil.

Optionally, the first flexible subassembly includes extensible member and carriage, and the extensible member is connected with the carriage, and first electromagnetic heating coil installs in the carriage one end of keeping away from the extensible member, and the bottom of carriage is provided with the slider, and the frame is provided with the spout, slider and spout sliding fit.

Optionally, the hot press forming device further comprises a bearing plate, the movable die holder is mounted on the bearing plate, the bearing plate is provided with a guide post, the frame is provided with a guide sleeve, and the guide post is slidably arranged in the guide sleeve.

Optionally, the hot press forming device further comprises a first conveying roller way, a conveying mechanism and a second conveying roller way, the conveying mechanism is mounted on the frame and arranged between the first conveying roller way and the second conveying roller way, the first conveying roller way is used for conveying blanks to a preset position, the conveying mechanism is used for conveying the blanks located at the preset position to the fixed die holder so that the movable die holder and the fixed die holder can carry out hot press forming on the blanks, and the conveying mechanism is further used for conveying products obtained after the hot press forming to the second conveying roller way.

Optionally, the conveying mechanism comprises a mechanical arm, a mounting plate, a driving piece, a fixed clamping block and a movable clamping block, wherein the mechanical arm is mounted on the frame, the free end of the mechanical arm is connected with the mounting plate, the driving piece is mounted on the mounting plate and connected with the movable clamping block, the fixed clamping block is fixedly connected onto the mounting plate, and the driving piece is used for driving the movable clamping block to be close to the fixed clamping block so as to clamp a blank or a product.

Optionally, the number of the driving piece and the movable clamping blocks is two, each driving piece is connected with one movable clamping block, and the fixed clamping block and the two movable clamping blocks are arranged in a regular triangle.

Optionally, the hot press forming device further comprises a heating furnace, the heating furnace is covered outside the first conveying roller way, the first conveying roller way passes through the heating furnace, and the heating furnace is used for heating blanks on the first conveying roller way.

Optionally, a first molding groove is formed on one side, close to the fixed die holder, of the movable die holder, a second molding groove is formed on one side, close to the movable die holder, of the fixed die holder, the first molding groove and the second molding groove are used for enclosing a molding cavity together during die assembly, and the cavity is used for molding a product.

Optionally, the hot press forming device further comprises an ejection mechanism, the ejection mechanism comprises a power piece, a transmission column and an ejection table, the power piece is installed on the frame and connected with the ejection table through the transmission column, the bottom wall of the second forming groove is provided with a yielding groove, the ejection table is arranged in the yielding groove, and the power piece is used for driving the ejection table to rise through the transmission column so as to eject a product in the second forming groove.

The hot press forming device provided by the invention has the following beneficial effects:

the lifting piece is arranged on the frame and connected with the movable die holder, the movable die holder is arranged above the fixed die holder, the lifting piece is used for driving the movable die holder to be close to or far away from the fixed die holder so as to realize die assembly or die opening, the telescopic mechanism is arranged on the frame and connected with the first electromagnetic heating coil and the second electromagnetic heating coil, the first electromagnetic heating coil and the second electromagnetic heating coil are arranged at intervals in parallel, and the telescopic mechanism is used for driving the first electromagnetic heating coil and the second electromagnetic heating coil to extend between the movable die holder and the fixed die holder during die opening so as to enable the first electromagnetic heating coil to carry out electromagnetic induction heating on the movable die holder and enable the second electromagnetic heating coil to carry out electromagnetic induction heating on the fixed die holder. Compared with the prior art, the hot press forming device provided by the invention has the advantages that as the telescopic mechanism connected with the first electromagnetic heating coil and the second electromagnetic heating coil is adopted, the uniformity of the heating temperature of the press forming part can be improved, the press forming quality of a product is ensured, the press forming effect is enhanced, the yield is improved, and the hot press forming device is practical and reliable.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of a hot press forming apparatus according to an embodiment of the present invention;

fig. 2 is a schematic structural view of another view angle of the hot press forming device according to the embodiment of the present invention;

FIG. 3 is a schematic view of the first telescopic assembly of FIG. 1;

FIG. 4 is a cross-sectional view of the first telescoping assembly of FIG. 1 in sliding engagement with a frame;

fig. 5 is a schematic structural diagram of sliding fit between a carrier plate and a frame in a hot press forming device according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a conveying mechanism in a hot press forming apparatus according to an embodiment of the present invention;

fig. 7 is a cross-sectional view of a movable mold base and a fixed mold base in a hot press molding apparatus according to an embodiment of the present invention when they are closed.

Icon: 100-a hot press forming device; 110-a frame; 111-a chute; 112-a guide sleeve; 120-fixing a die holder; 121-a second molding groove; 122-yielding slots; 130-a movable die holder; 131-a first molding groove; 140-lifting piece; 150-a first electromagnetic heating coil; 160-a second electromagnetic heating coil; 170-a telescoping mechanism; 171-a first telescoping assembly; 172-a second telescoping assembly; 173-telescoping member; 174-a carriage; 175-slide block; 180-bearing plate; 181-guide posts; 190-a first conveying roller way; 200-a conveying mechanism; 201-a mechanical arm; 202-mounting plates; 203-a driver; 204, fixing clamping blocks; 205-moving clamping blocks; 210-a second conveying roller way; 220-heating furnace; 230-an ejection mechanism; 231-power piece; 232-a transmission column; 233-eject from the table.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "inner", "outer", "upper", "lower", "horizontal", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Some embodiments of the present invention are described in detail below with reference to the accompanying drawings. Features of the embodiments described below may be combined with each other without conflict.

Referring to fig. 1 and 2 in combination, an embodiment of the present invention provides a hot press forming apparatus 100 for hot press forming a blank to obtain a product. The device can improve the uniformity of the heating temperature of the compression part, ensure the compression quality of products, enhance the compression effect, improve the yield, and is practical and reliable.

In this embodiment, the blank and the product are both made of glass, that is, the hot press forming device 100 is used for hot press forming the glass blank to form the glass blank into a glass product with a preset shape and a preset size. However, the present invention is not limited thereto, and in other embodiments, the material of the blank and the product may be crystal, metal, graphite, or the like, and the hot press molding apparatus 100 may be applied to a hot press molding operation of a material such as crystal, metal, or graphite, and the application scenario of the hot press molding apparatus 100 is not particularly limited.

The hot press molding device 100 includes a frame 110, a fixed mold base 120, a movable mold base 130, a lifter 140, a first electromagnetic heating coil 150, a second electromagnetic heating coil 160, a telescopic mechanism 170, a carrier plate 180, a first conveying roller table 190, a conveying mechanism 200, a second conveying roller table 210, a heating furnace 220, and an ejection mechanism 230. The lifting member 140 is mounted on the frame 110 and connected to the movable die holder 130, the frame 110 can fix the position of the lifting member 140, and the lifting member 140 can drive the movable die holder 130 to rise or fall. The movable mold base 130 is disposed above the fixed mold base 120, the fixed mold base 120 is fixedly mounted at the bottom of the frame 110, and the lifting member 140 is used for driving the movable mold base 130 to approach or depart from the fixed mold base 120, so as to implement mold closing or mold opening. The telescopic mechanism 170 is installed on the frame 110 and connected with the first electromagnetic heating coil 150 and the second electromagnetic heating coil 160, the first electromagnetic heating coil 150 and the second electromagnetic heating coil 160 are arranged at intervals in parallel, and the telescopic mechanism 170 is used for driving the first electromagnetic heating coil 150 and the second electromagnetic heating coil 160 to extend between the movable die holder 130 and the fixed die holder 120 during die sinking, so that the first electromagnetic heating coil 150 is arranged close to the movable die holder 130, electromagnetic induction heating is performed on the movable die holder 130, and the second electromagnetic heating coil 160 is arranged close to the fixed die holder 120, so that electromagnetic induction heating is performed on the fixed die holder 120. Specifically, when the first electromagnetic heating coil 150 is energized, the alternating current flowing through the first electromagnetic heating coil 150 generates an alternating magnetic field through the movable die holder 130, which causes the movable die holder 130 to generate eddy currents, thereby achieving uniform heating of the movable die holder 130; when the second electromagnetic heating coil 160 is energized, the alternating current flowing through the second electromagnetic heating coil 160 generates an alternating magnetic field through the stationary platen 120, which causes the stationary platen 120 to generate eddy currents, thereby achieving uniform heating of the stationary platen 120; in this way, the uniformity of the heating temperature of the movable die holder 130 and the fixed die holder 120 can be improved, the profiling quality of products is ensured, the profiling effect is enhanced, the yield is improved, and the die is practical and reliable.

Further, the shape and the size of the first electromagnetic heating coil 150 are matched with those of the movable die holder 130, so that the first electromagnetic heating coil 150 can uniformly heat the whole movable die holder 130, and the uniformity of the heating temperature of the movable die holder 130 is improved; the shape and size of the second electromagnetic heating coil 160 are matched with those of the fixed die holder 120, so that the second electromagnetic heating coil 160 can uniformly heat the whole fixed die holder 120, and the uniformity of the heating temperature of the fixed die holder 120 is improved.

In this embodiment, the movable mold base 130, the fixed mold base 120, the first electromagnetic heating coil 150 and the second electromagnetic heating coil 160 are all disposed on a horizontal plane, the lifting member 140 is used for driving the movable mold base 130 to lift or descend along a vertical direction, the telescopic mechanism 170 is used for driving the first electromagnetic heating coil 150 and the second electromagnetic heating coil 160 to extend into between the movable mold base 130 and the fixed mold base 120 or retract out between the movable mold base 130 and the fixed mold base 120 along a horizontal direction, so that interference of the telescopic movement of the movable mold base 130 and the fixed mold base 120 to the first electromagnetic heating coil 150 and the second electromagnetic heating coil 160 can be avoided to the greatest extent, and the reliability is strong.

Telescoping mechanism 170 includes a first telescoping assembly 171 and a second telescoping assembly 172. The first telescopic assembly 171 and the second telescopic assembly 172 are both installed on the frame 110, the first telescopic assembly 171 is connected with the first electromagnetic heating coil 150, the first telescopic assembly 171 is used for driving the first electromagnetic heating coil 150 to extend between the movable die holder 130 and the fixed die holder 120 or retract between the movable die holder 130 and the fixed die holder 120, the second telescopic assembly 172 is connected with the second electromagnetic heating coil 160, and the second telescopic assembly 172 is used for driving the second electromagnetic heating coil 160 to extend between the movable die holder 130 and the fixed die holder 120 or retract between the movable die holder 130 and the fixed die holder 120. Specifically, the first telescopic assembly 171 and the second telescopic assembly 172 may drive the first electromagnetic heating coil 150 and the second electromagnetic heating coil 160 to move synchronously, or may drive the first electromagnetic heating coil 150 and the second electromagnetic heating coil 160 to move asynchronously, which needs to be determined according to practical situations.

Referring to fig. 3 and 4 in combination, the first telescopic assembly 171 includes a telescopic member 173 and a sliding frame 174. The telescopic member 173 is connected with the sliding frame 174, and the first electromagnetic heating coil 150 is mounted at one end of the sliding frame 174 away from the telescopic member 173, and the telescopic member 173 is used for driving the sliding frame 174 to move along the horizontal direction, so as to drive the first electromagnetic heating coil 150 to extend between the movable die holder 130 and the fixed die holder 120 or retract between the movable die holder 130 and the fixed die holder 120. Specifically, the bottom of the sliding frame 174 is provided with a sliding block 175, the frame 110 is provided with a sliding groove 111, the sliding block 175 is in sliding fit with the sliding groove 111, the sliding groove 111 extends in the horizontal direction, the sliding block 175 can slide relative to the sliding groove 111, the sliding groove 111 can limit and guide the sliding block 175 so as to ensure the stability of the sliding frame 174 in the sliding process, and the frame 110 can support the sliding frame 174 through the sliding fit of the sliding groove 111 and the sliding block 175 so as to prevent the sliding frame 174 from bending deformation under the action of gravity. In this embodiment, the number of the sliding blocks 175 and the sliding grooves 111 is two, and the two sliding grooves 111 are arranged on the frame 110 side by side and at intervals, and each sliding block 175 is slidably matched with one sliding groove 111, so as to further improve the sliding stability.

Further, the first telescopic assembly 171 further includes a temperature sensor (not shown) mounted on the frame 110 and electrically connected to the telescopic member 173, the temperature sensor is configured to detect the real-time temperature of the movable mold base 130, and control the telescopic member 173 to drive the sliding frame 174 to retract and reset when the real-time temperature of the movable mold base 130 reaches a preset temperature, so that the first electromagnetic heating coil 150 is retracted between the movable mold base 130 and the fixed mold base 120.

In this embodiment, the specific structure of the second telescopic assembly 172 is the same as that of the first telescopic assembly 171, and will not be described here again.

Referring to fig. 5, it should be noted that the movable mold base 130 is mounted on the carrying plate 180, the carrying plate 180 is used for supporting and fixing the movable mold base 130, and the carrying plate 180 rises or falls along with the movable mold base 130 in the process that the lifting member 140 drives the movable mold base 130 to lift. Specifically, the bearing plate 180 is provided with a guide post 181, the frame 110 is provided with a guide sleeve 112, the guide post 181 is slidably arranged in the guide sleeve 112, the guide post 181 can slide relative to the guide sleeve 112, and the guide sleeve 112 can limit and guide the guide post 181 so as to prevent the bearing plate 180 from shifting or rotating in the lifting process, thereby ensuring the stability of the movable die holder 130 in the lifting process.

In this embodiment, the number of the guide posts 181 and the guide sleeves 112 is four, the four guide posts 181 are arranged on the carrier plate 180 in a rectangular array, each guide post 181 is slidably matched with one guide sleeve 112, and the movable mold base 130 is mounted at the center of the four guide posts 181, so as to further improve the guiding precision. However, the number of the guide posts 181 and the guide sleeves 112 may be two or three in other embodiments, and the number of the guide posts 181 and the guide sleeves 112 is not particularly limited.

Referring to fig. 2 and 6 in combination, it should be noted that the conveying mechanism 200 is mounted on the frame 110 and disposed between the first conveying roller table 190 and the second conveying roller table 210, the first conveying roller table 190 is used for conveying blanks to a preset position, the conveying mechanism 200 is used for conveying blanks located at the preset position to the fixed die holder 120 so as to facilitate the hot press forming of the blanks by the movable die holder 130 and the fixed die holder 120, the conveying mechanism 200 is also used for conveying products obtained after the hot press forming to the second conveying roller table 210, and the second conveying roller table 210 is used for conveying the products to a next station so as to facilitate the next process. The heating furnace 220 is covered outside the first conveying roller table 190, the first conveying roller table 190 passes through the heating furnace 220, the heating furnace 220 is used for heating blanks on the first conveying roller table 190 so as to soften the blanks by heating, the subsequent forming is convenient, and the first conveying roller table 190 is used for conveying the heated blanks to a preset position so as to perform hot press forming on the blanks. The ejection mechanism 230 is mounted on the frame 110 and disposed below the fixed mold base 120, and the ejection mechanism 230 is configured to eject a product in the fixed mold base 120 outwards during mold opening, so that the conveying mechanism 200 sends the product to the second conveying roller 210.

The transport mechanism 200 includes a robot arm 201, a mounting plate 202, a driving member 203, a fixed clamp block 204, and a movable clamp block 205. The mechanical arm 201 is mounted on the frame 110, a free end of the mechanical arm 201 is connected with the mounting plate 202, and the mechanical arm 201 is used for driving the mounting plate 202 to move. The driving piece 203 is installed on the mounting plate 202 and is connected with the movable clamping block 205, the fixed clamping block 204 is fixedly connected to the mounting plate 202, the driving piece 203 is used for driving the movable clamping block 205 to be close to the fixed clamping block 204 so as to clamp a blank or a product, and the driving piece 203 is also used for driving the movable clamping block 205 to be far away from the fixed clamping block 204 so as to loosen the blank or the product. In this embodiment, the mechanical arm 201 is a three-axis mechanical arm 201, and the mechanical arm 201 can drive the mounting plate 202 to move to any position in a three-dimensional space, so that the movable clamping block 205 and the fixed clamping block 204 mounted on the mounting plate 202 can clamp and convey blanks or products at different positions.

Further, the number of driving members 203 and the number of movable clamping blocks 205 are two, each driving member 203 is connected with one movable clamping block 205, and each driving member 203 can drive one movable clamping block 205 to move. In this embodiment, the fixed clamping block 204 and the two movable clamping blocks 205 are arranged in a regular triangle, and the two movable clamping blocks 205 can be synchronously close to the fixed clamping block 204 or synchronously far away from the fixed clamping block 204 under the action of the two driving members 203, so as to realize the clamping or loosening function, thereby being convenient for conveying blanks or products.

Referring to fig. 7, in the present embodiment, a first molding groove 131 is formed on a side of the movable mold base 130 close to the fixed mold base 120, a second molding groove 121 is formed on a side of the fixed mold base 120 close to the movable mold base 130, the first molding groove 131 and the second molding groove 121 are used for enclosing a molding cavity together during mold closing, and the cavity is used for molding a product. Specifically, in the hot press molding process of the product, firstly, the heated and softened blank is fed into the second molding groove 121 of the fixed die holder 120; then the movable die holder 130 is driven to descend by the lifting piece 140 so as to realize the die assembly action of the movable die holder 130 and the fixed die holder 120, and in the process, the movable die holder 130 presses the blank so as to enable the blank to fill the die cavity, and a product is formed; the movable mold base 130 is driven by the lifting member 140, so as to realize the mold opening action of the movable mold base 130 and the fixed mold base 120, so as to facilitate the product taking out.

The ejector mechanism 230 includes a power member 231, a drive post 232, and an ejector table 233. The power part 231 is mounted on the frame 110 and connected with the ejection table 233 through a transmission column 232, and the power part 231 can drive the ejection table 233 to ascend or descend through the transmission column 232. The bottom wall of the second molding groove 121 is provided with a relief groove 122, that is, the second molding groove 121 is communicated with the relief groove 122, and the cross-sectional area of the second molding groove 121 is larger than that of the relief groove 122. The ejection table 233 is disposed in the relief groove 122, and the relief groove 122 is used for accommodating the ejection table 233. The power piece 231 is used for driving the ejection platform 233 to ascend through the transmission column 232 so that the ejection platform 233 upwards extends out of the abdication groove 122, thereby ejecting products in the second forming groove 121, and the power piece 231 is also used for driving the ejection platform 233 to descend through the transmission column 232 so that the ejection platform 233 downwards retracts into the abdication groove 122, and therefore the reset function is achieved.

In this embodiment, the lifter 140 is a gas-liquid booster cylinder, and the telescopic member 173 and the driving member 203 are both cylinders. Specifically, the lifting member 140 can apply a pressure of 8 tons to the movable die holder 130 at maximum, that is, the die clamping pressure of the movable die holder 130 and the fixed die holder 120 can reach 8 tons at maximum, so as to ensure that the movable die holder 130 and the fixed die holder 120 can perform hot press forming on large-size glass products (larger pressure is required). However, the present invention is not limited thereto, and in other embodiments, the lifting member 140, the telescopic member 173, and the driving member 203 may be electric cylinders, or may be hydraulic cylinders, and the types of the lifting member 140, the telescopic member 173, and the driving member 203 are not particularly limited.

It should be noted that, during the operation of the hot press forming apparatus 100, the blank is first continuously conveyed to the preset position by using the first conveying roller table 190, and during this process, the blank passes through the heating furnace 220 and is heated and softened under the heating action of the heating furnace 220; then, the telescopic mechanism 170 is started, the first telescopic assembly 171 is utilized to drive the first electromagnetic heating coil 150 to extend between the movable die holder 130 and the fixed die holder 120, and the second telescopic assembly 172 is utilized to drive the second electromagnetic heating coil 160 to extend between the movable die holder 130 and the fixed die holder 120, so that the movable die holder 130 and the fixed die holder 120 are in a die opening state; then, the first electromagnetic heating coil 150 and the second electromagnetic heating coil 160 are electrified, so that the first electromagnetic heating coil 150 performs electromagnetic induction heating on the movable die holder 130, and the second electromagnetic heating coil 160 performs electromagnetic induction heating on the fixed die holder 120; after heating to a preset temperature, the telescopic mechanism 170 is utilized to drive the first electromagnetic heating coil 150 and the second electromagnetic heating coil 160 to retract and reset between the driven die holder 130 and the fixed die holder 120; then, the blank at the preset position is clamped and conveyed to the fixed die holder 120 by the conveying mechanism 200 so that the blank falls into the second forming groove 121 of the fixed die holder 120; then the movable die holder 130 is driven to descend by the lifting piece 140 so as to enable the movable die holder 130 to be matched with the fixed die holder 120, and the blank is subjected to hot press forming; after the molding is completed, the movable mold base 130 is driven to ascend by the lifting piece 140 so as to realize the mold opening action, and the product in the second molding groove 121 is ejected upwards by the ejection mechanism 230; then the ejected product is clamped by the conveying mechanism 200 and conveyed to the second conveying roller way 210, and the second conveying roller way 210 is utilized to convey the product to the next station; the hot press forming processing of a plurality of blanks is continuously realized by repeating the steps, the pressing efficiency is high, and the pressing effect is good.

According to the hot press forming device 100 provided by the embodiment of the invention, the lifting piece 140 is mounted on the frame 110 and is connected with the movable die holder 130, the movable die holder 130 is arranged above the fixed die holder 120, the lifting piece 140 is used for driving the movable die holder 130 to be close to or far away from the fixed die holder 120 so as to realize die assembly or die opening, the telescopic mechanism 170 is mounted on the frame 110 and is connected with the first electromagnetic heating coil 150 and the second electromagnetic heating coil 160, the first electromagnetic heating coil 150 and the second electromagnetic heating coil 160 are arranged at intervals in parallel, and the telescopic mechanism 170 is used for driving the first electromagnetic heating coil 150 and the second electromagnetic heating coil 160 to extend between the movable die holder 130 and the fixed die holder 120 during die opening so as to enable the first electromagnetic heating coil 150 to perform electromagnetic induction heating on the movable die holder 130 and enable the second electromagnetic heating coil 160 to perform electromagnetic induction heating on the fixed die holder 120. Compared with the prior art, the hot press forming device 100 provided by the invention adopts the telescopic mechanism 170 connected with the first electromagnetic heating coil 150 and the second electromagnetic heating coil 160, so that the uniformity of the heating temperature of the press forming part can be improved, the press forming quality of a product is ensured, the press forming effect is enhanced, the yield is improved, and the hot press forming device is practical and reliable.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The hot-press forming device is characterized by comprising a frame, a fixed die holder, a movable die holder, a lifting part, a first electromagnetic heating coil, a second electromagnetic heating coil and a telescopic mechanism, wherein the lifting part is arranged on the frame and connected with the movable die holder, the movable die holder is arranged above the fixed die holder, the lifting part is used for driving the movable die holder to be close to or far away from the fixed die holder so as to realize die closing or die opening, the telescopic mechanism is arranged on the frame and connected with the first electromagnetic heating coil and the second electromagnetic heating coil, the first electromagnetic heating coil and the second electromagnetic heating coil are arranged at parallel intervals, and the telescopic mechanism is used for driving the first electromagnetic heating coil and the second electromagnetic heating coil to extend between the movable die holder and the fixed die holder during die opening, so that the first electromagnetic heating coil carries out electromagnetic induction heating on the movable die holder and the second electromagnetic heating coil carries out electromagnetic induction heating on the fixed die holder.

2. The hot press forming apparatus of claim 1, wherein the telescoping mechanism comprises a first telescoping assembly and a second telescoping assembly, the first telescoping assembly and the second telescoping assembly are both mounted on the frame, the first telescoping assembly is connected with the first electromagnetic heating coil, and the second telescoping assembly is connected with the second electromagnetic heating coil.

3. The hot press molding device according to claim 2, wherein the first expansion assembly includes an expansion member and a carriage, the expansion member is connected with the carriage, the first electromagnetic heating coil is mounted at one end of the carriage away from the expansion member, a slider is provided at a bottom of the carriage, a chute is provided on the frame, and the slider is slidably engaged with the chute.

4. The hot press forming device according to claim 1, further comprising a carrier plate, the movable die holder being mounted on the carrier plate, the carrier plate being provided with a guide post, the frame being provided with a guide sleeve, the guide post being slidably disposed in the guide sleeve.

5. The hot press forming device according to claim 1, further comprising a first conveying roller way, a conveying mechanism and a second conveying roller way, wherein the conveying mechanism is mounted on the frame and is arranged between the first conveying roller way and the second conveying roller way, the first conveying roller way is used for conveying blanks to a preset position, the conveying mechanism is used for conveying blanks positioned at the preset position to the fixed die holder so as to facilitate hot press forming of the blanks by the movable die holder and the fixed die holder, and the conveying mechanism is further used for conveying products obtained after hot press forming to the second conveying roller way.

6. The apparatus of claim 5, wherein the conveying mechanism comprises a mechanical arm, a mounting plate, a driving member, a fixed clamping block and a movable clamping block, the mechanical arm is mounted on the frame, a free end of the mechanical arm is connected with the mounting plate, the driving member is mounted on the mounting plate and connected with the movable clamping block, the fixed clamping block is fixedly connected with the mounting plate, and the driving member is used for driving the movable clamping block to be close to the fixed clamping block so as to clamp a blank or a product.

7. The apparatus according to claim 6, wherein the number of the driving members and the movable clamp blocks is two, each of the driving members is connected to one of the movable clamp blocks, and the fixed clamp blocks and the two movable clamp blocks are arranged in a regular triangle.

8. The apparatus according to claim 5, further comprising a heating furnace, wherein the heating furnace is covered outside the first conveying roller way, the first conveying roller way is disposed through the heating furnace, and the heating furnace is used for heating the blank on the first conveying roller way.

9. The hot press molding device according to claim 1, wherein a first molding groove is formed in a side of the movable mold base, which is close to the fixed mold base, a second molding groove is formed in a side of the fixed mold base, which is close to the movable mold base, the first molding groove and the second molding groove are used for enclosing a molding cavity together during mold closing, and the molding cavity is used for molding a product.

10. The hot press forming device according to claim 9, further comprising an ejection mechanism, wherein the ejection mechanism comprises a power member, a transmission column and an ejection table, the power member is mounted on the frame and connected with the ejection table through the transmission column, a yielding groove is formed in the bottom wall of the second forming groove, the ejection table is arranged in the yielding groove, and the power member is used for driving the ejection table to rise through the transmission column so as to eject a product in the second forming groove.