CN214781474U - Hot press molding equipment - Google Patents

Abstract

A hot press molding device comprises a preheating module and a molding module, wherein the preheating module is used for preheating a product, and the product comprises any one of 2.5D glass and 3D glass; the molding module is used for carrying out hot press molding on the preheated product; the forming module comprises at least one forming module, the at least one forming module comprises a ball screw driving assembly and a pressing and holding assembly, the ball screw driving assembly is connected with the pressing and holding assembly, and the driving and pressing and holding assembly is used for carrying out hot press forming on a product. Above-mentioned hot briquetting equipment holds the subassembly cooperation through ball screw drive assembly and pressure, and the control that can be accurate is pressed and is held the translation rate and the distance of subassembly, and consequently the control that can be accurate is pressed and is held the pressure of subassembly when the shaping, and then realizes the accurate control forming process, guarantees the shaping effect.

Description

Hot press molding equipment

Technical Field

The application relates to the field of thermal forming, in particular to hot-press forming equipment.

Background

In the production process of panel glass such as a mobile phone, a tablet computer and the like, the material glass is usually put into a forming die, and hot press forming is carried out on the preheated material glass, a power source adopted in the current forming step is a cylinder, the moving speed and the displacement can not be accurately controlled in the forming process, and therefore the pressure during forming is inaccurate, and the defect of poor forming of the material glass is easily caused, and particularly, the defect is more serious in the hot press forming of 2.5D glass or 3D glass.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a hot press molding apparatus capable of precisely controlling the speed, displacement and pressure during molding.

The embodiment of the application provides hot press forming equipment, which comprises a preheating module and a forming module, wherein the preheating module is used for preheating a product, and the product comprises any one of 2.5D glass and 3D glass; the molding module is used for carrying out hot press molding on the preheated product; the forming module comprises at least one forming module, the at least one forming module comprises a ball screw driving assembly and a pressing and holding assembly, and the ball screw driving assembly is connected with the pressing and holding assembly to drive the pressing and holding assembly to perform hot press forming on a product.

Further, in some embodiments of the present application, the molding module includes two molding modules arranged in an array, where a molding temperature of the molding module at the front end is 750 to 900 ℃, and a molding temperature of the molding module at the rear end is 800 to 900 ℃.

Further, in some embodiments of this application, ball screw drive assembly includes installation frame, motor, lead screw, screw-nut and connecting rod, the motor install in on the installation frame and connect the lead screw, screw-nut locates on the lead screw, lead screw and screw-nut all install in the installation frame, screw-nut and the other end are connected to the one end of connecting rod pass the installation frame and with press and hold the subassembly and be connected, motor drive the lead screw rotates so that screw-nut with the lead screw cooperation is removed, in order to drive press and hold the subassembly and go up and down.

Further, in some embodiments of the present application, the ball screw driving assembly further includes a guiding portion and a linear slide rail, the linear slide rail is disposed on the mounting frame, and the guiding portion is mounted on the screw nut and slidably disposed on the linear slide rail.

Further, in some embodiments of the present application, the guide portion includes a connecting block and a slider fixed to the connecting block, the connecting block is fixed to the lead screw nut, and the slider is slidably disposed on the linear sliding rail.

Further, in some embodiments of this application, hot briquetting equipment still includes detection mechanism, detection mechanism includes linkage piece, pressure sensor and is detected the piece, the linkage piece is fixed in on the connecting block, pressure sensor connects the linkage piece, it locates to be detected on the installation frame and be located pressure sensor's the moving direction, the linkage piece follows screw-nut removes together, is used for driving pressure sensor orientation is detected the piece removal and is pressed and hold be detected the piece.

Further, in some embodiments of this application, the hot briquetting equipment still includes stop gear, stop gear includes locating part and trigger piece, the trigger piece is located screw-nut is last, the locating part is fixed in on the installation frame and is located the moving direction of trigger piece, screw-nut drives the trigger piece removes to the position of locating part, in order to restrict the distance that pushes down of holding the subassembly is pressed.

Further, in some embodiments of the present application, the pressing component includes a heating plate, a pressure equalizing plate and a plurality of heat insulating plates, the heat insulating plates are connected to each other, one of the heat insulating plates which is most far away from one side of the product is connected to the connecting rod, the other one of the heat insulating plates which is most near to the other side of the product is connected to the heating plate, and the pressure equalizing plate is installed on one side of the heating plate which is far away from the heat insulating plate.

Further, in some embodiments of the present application, a cooling medium is circulated within at least one of the heat shield panels.

Further, in some embodiments of the present application, an electric heating tube is provided inside the heating plate.

Above-mentioned hot briquetting equipment holds the subassembly cooperation through ball screw drive assembly and pressure, and the control that can be accurate is pressed and is held the translation rate and the distance of subassembly, and consequently the control that can be accurate is pressed and is held the pressure of subassembly when the shaping, and then realizes the accurate control forming process, guarantees the shaping effect.

Drawings

Fig. 1 illustrates a schematic structural diagram of a hot press molding apparatus in an embodiment.

FIG. 2 is a schematic top view of a molding die set according to an embodiment.

FIG. 3 is an exploded top view of a molding die set according to an embodiment.

Fig. 4 illustrates a schematic structural diagram of the limiting mechanism in an embodiment.

Description of the main elements

Hot press molding apparatus 100

Preheating module 10

Molding die set 20

First molding module 21

Ball screw drive assembly 211

Mounting frame 2111

Mounting plate 2111a

Mounting board 2111b

Side plate 2111c

Motor 2112

Stabilizing frame 2112a

Screw 2113

Feed screw nut 2114

Connecting rod 2115

Guide portion 2116

Connecting block 2116a

Slider 2116b

Linear slide 2117

Pressing assembly 212

Connecting plate 2121

Thermal insulation plate 2122

First heat insulation plate 2122a

Second heat insulation plate 2122b

Third insulation board 2122c

Heating plate 2123

Pressure equalizing plate 2124

Second molding module 22

Carrying rack 30

Conveying mechanism 40

Detection mechanism 50

Linkage block 51

Pressure sensor 52

Detected member 53

Limit mechanism 60

Stopper 61

Sensors 61a, 61b, 61c

Trigger piece 62

Slow cooling module 70

First Slow Cooling Module 71

Second creep module 72

Quenching module 80

First quench module 81

Second quench module 82

The following specific examples will further illustrate the application in conjunction with the above figures.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

The embodiment of the application provides hot press molding equipment, which comprises a preheating module and a molding module, wherein the preheating module is used for preheating a product, and the product comprises any one of 2.5D glass and 3D glass; the molding module is used for carrying out hot press molding on the preheated product; the forming module comprises at least one forming module, the at least one forming module comprises a ball screw driving assembly and a pressing and holding assembly, the ball screw driving assembly is connected with the pressing and holding assembly, and the driving and pressing and holding assembly is used for carrying out hot press forming on a product.

Above-mentioned hot briquetting equipment holds the subassembly cooperation through ball screw drive assembly and pressure, and the control that can be accurate is pressed and is held the translation rate and the distance of subassembly, and consequently the control that can be accurate is pressed and is held the pressure of subassembly when the shaping, and then realizes the accurate control forming process, guarantees the shaping effect.

Some embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1, the hot press forming apparatus 100 is shown for hot press forming a product, where the product includes any one of 2.5D glass and 3D glass, and the product may also be plastic, silicone, etc., as long as the edge of the product needs to be hot press bent. The hot press forming equipment 100 comprises a preheating module 10 and a forming module 20 which are sequentially arranged, the preheating module 10 is used for preheating a product, and the forming module 20 is used for hot press forming the preheated product. It can be understood that, in the process of preheating and hot press forming the product, the product is arranged in the corresponding forming die, and the forming die set 20 is matched with the lower die plate of the die by pressing the upper die plate of the die, so that the hot press forming of the material glass is completed in the die.

The hot press molding apparatus 100 further includes a carrier frame 30 and a conveying mechanism 40 disposed on the carrier frame 30, wherein the conveying mechanism 40 is used for carrying the product and transferring the product to a position corresponding to the preheating module 10 and the molding module 20. Specifically, the product preheated by the preheating module 10 is transferred to the lower part of the forming module 20 through the conveying mechanism 40, so that the product is hot-pressed and formed through the forming module 20. It is understood that the hot press molding apparatus 100 further includes a housing (not shown) disposed on the carrier frame 30 for accommodating the preheating module 10, the molding module 20 and the conveying mechanism 40 in an accommodating space formed by the housing and the carrier frame 30.

The molding module 20 includes at least one molding module, and in an embodiment, as shown in fig. 1, the molding module 20 includes a first molding module 21 and a second molding module 22 that are sequentially arranged, the first molding module 21 and the second molding module 22 have the same structure, the molding temperature of the first molding module 21 is 750-900 ℃, and the molding temperature of the second molding module 22 is 800-900 ℃. It can be understood that the usage of the first molding module 21 and the second molding module 22 can be adjusted according to the requirement, for example, when the molding requirement is large, the first molding module 21 and the second molding module 22 can be used together for the molding operation, when the requirement is small, one of the molding modules can be used to complete the molding operation separately, and the other one can be used to preheat or cool the product.

Fig. 2 is a schematic top structural view of the molding module 20 in an embodiment, and fig. 3 is an exploded schematic top structural view of the molding module 20 in an embodiment. Since the molding die set 20 of the present application is mainly different from the molding die set of the related art in the upper structure of the molding die set, and since the upper structures of the respective molding modules of the molding die set 20 are identical to each other, only the upper structure of one molding module of the molding die set 20 will be described below with reference to fig. 2 and 3.

Referring to fig. 2 and fig. 3, taking the first molding module 21 as an example, the first molding module 21 includes a ball screw driving element 211 and a pressing element 212, wherein one end of the ball screw driving element 211 is connected to the housing and the other end is connected to the pressing element 212 for driving the pressing element 212 to perform hot press molding on a product.

The ball screw drive assembly 211 includes a mounting frame 2111, a motor 2112, a screw 2113, a screw nut 2114, and a connecting rod 2115. The mounting frame 2111 is fixed on the inner wall of the housing, the motor 2112 is mounted on the mounting frame 2111, the lead screw 2113 is respectively connected with the motor 2112 and the lead screw nut 2114, the lead screw nut 2114 is connected with the connecting rod 2115, the connecting rod 2115 is connected with the pressing component 212, the lead screw 2113 is driven by the motor 2112 to rotate so as to enable the lead screw nut 2114 to be matched with the lead screw 2113 to move, so that the pressing component 212 is driven to move towards the mold, and the product in the mold is subjected to hot press molding.

The mounting frame 2111 includes a motor mounting plate 2111a, a mounting substrate 2111b, and four side plates 2111c connecting the periphery of the mounting plate 2111a and the mounting substrate 2111 b. The motor mounting plate 2111a is used for mounting the motor 2112, and one end of the connecting rod 2115 passes through the mounting plate 2111b and is connected to the pressure holding assembly 212. One end of each of the four side plates 2111c is connected to the peripheral side of the motor mounting plate 2111a, and the other end is mounted on the mounting substrate 2111 b. In one embodiment, a portion of side plates 2111c in the four side plates 2111c is provided with an opening to facilitate mounting of other components.

In one embodiment, the motor 2112 has a rotating shaft, and is connected to the lead screw 2113 through the rotating shaft to drive the lead screw 2113 to rotate. For example, the motor 2112 is a servo motor, and the screw 2113 is a ball screw. The motor 2112 may also have a linkage shaft connecting the rotational shaft of the motor 2112 with the lead screw 2113 to make the transmission between the two more stable.

In an embodiment, the motor 2112 is further provided with a stabilizing frame 2112a, and a rotating shaft or a linkage shaft of the motor 2112 passes through the stabilizing frame 2112a to be connected with the connecting rod 2115, so that the rotating stability of the screw 2113 is improved, and the phenomenon that the pressing assembly 212 shakes to affect the hot press forming effect is avoided.

The ball screw drive assembly 211 further includes a guide portion 2116 and a linear guide 2117, the linear guide 2117 is disposed on the side plate 2111c along the length direction of the screw 2113, one side of the guide portion 2116 is slidably disposed on the linear guide 2117, and the other side is fixed to the screw nut 2114. When the lead screw nut 2114 moves on the lead screw 2113, the guide portion 2116 is driven to move on the linear slide rail 2117, so that the moving stability of the lead screw nut 2114 on the lead screw 2113 is increased, and the stability of the pressing and holding assembly 212 in the lifting process is further ensured.

The moving speed and distance of the clamping assembly 212 can be precisely controlled by the ball screw driving assembly 211, particularly the precise matching of the motor 2112 and the screw 2113. Meanwhile, the repeatability precision required by the pressing and holding assembly 212 due to frequent lifting can be ensured by the ball screw driving assembly 211.

In one embodiment, the guiding portion 2116 includes a connection block 2116a and a slider 2116b fixed to the connection block 2116a, the connection block 2116a is further fixed to the lead screw nut 2114, and the slider 2116b is slidably disposed on the linear guideway 2117. In one embodiment, connector block 2116a is substantially L-shaped.

In one embodiment, the hot press molding apparatus 100 further includes a detection mechanism 50 as shown in fig. 2, and the detection mechanism 50 includes a linkage block 51, a pressure sensor 52, and a detected member 53. The link block 51 has one end fixed to the connection block 2116a and the other end connected to the pressure sensor 52, and the detection object 53 is provided on the side plate 2111c and positioned in the moving direction of the pressure sensor 52. The linkage block 51 moves together with the lead screw nut 2114 to drive the pressure sensor 52 to move towards the detected piece 53 and press and hold the detected piece 53. Therefore, the relationship between the moving distance of the lead screw nut 2114 and the pressing pressure is obtained, and the pressing pressure of the pressing and holding assembly 212 can be accurately controlled by accurately controlling the moving distance, so that the forming effect is ensured.

The pressure holding assembly 212 includes a connecting plate 2121, a plurality of heat insulating plates 2122, a heating plate 2123, and a pressure equalizing plate 2124 as shown in fig. 3. The plurality of heat insulating plates 2122 are connected to each other, one side of the connection plate 2121 is connected to the connection rod 2115, and the other side is connected to the heat insulating plate 2122 located at the outermost side and facing away from the product, the heat insulating plate 2122 located at the outermost side among the plurality of heat insulating plates 2122 and facing the product is connected to one side of the heating plate 2123, and the other side of the heating plate 2123 is connected to the pressure equalizing plate 2124.

A cooling medium is circulated through at least one heat insulating plate 2122 of the plurality of heat insulating plates 2122. In one embodiment, the heat insulation plate 2122 includes a first heat insulation plate 2122a, a second heat insulation plate 2122b and a third heat insulation plate 2122c which are sequentially connected to each other, the first heat insulation plate 2122a is connected to the connection plate 2121, and the third heat insulation plate 2122c is connected to the heating plate 2123, wherein a cooling medium, such as cooling water, cooling liquid, etc., is communicated to the first heat insulation plate 2122a, so as to facilitate heat transfer from the second heat insulation plate 2122b and the third heat insulation plate 2122c located below the first heat insulation plate 2122a to the cooling medium, thereby improving the heat insulation effect. It will be appreciated that the number of heat shields 2122 provided with cooling medium may also be one, two, three, etc., as desired.

An electric heating tube is arranged in the heating plate 2123 and used for enabling the forming temperature of the pressing component 212 to reach the forming requirement and ensuring the forming effect.

When the first molding module 21 is used, the motor 2112 drives the lead screw 2113 to rotate so as to enable the lead screw nut 2114 to move in cooperation with the lead screw 2113, and further the lead screw nut 2114 drives the connecting rod 2115 to move, so that the pressing component 212 connected with the connecting rod 2115 moves towards the mold, the molding temperature is maintained through the heating plate 2123 of the pressing component 212, the mold is pressed through the pressure equalizing plate 2124, and the upper mold plate and the lower mold plate of the mold are closed, so that the hot press molding of the material glass in the mold is completed.

In an embodiment, the hot press molding apparatus 100 further includes a limiting mechanism 60 as shown in fig. 4, the limiting mechanism 60 includes a limiting member 61 and a trigger member 62, the limiting member 61 is disposed on one side plate 2111c, the trigger member 62 is mounted on the lead screw nut 2114, one end of the trigger member 62 extends to a position where the limiting member 61 is located, the limiting member 61 is located in a moving direction of the trigger member 62, and the lead screw nut 2114 drives the trigger member 62 to move through or to reach the limiting position of the limiting member 61, so as to limit a pressing distance of the pressing component 212, and further limit a pressing pressure of the pressing component 212. In one embodiment, the position-limiting member 61 is provided with a plurality of detachable and position-adjustable sensors, such as a sensor 61a, a sensor 61b and a sensor 61c, wherein the sensor 61a is used for sensing the initial position of the triggering member 62, the sensor 61b is used for sensing the end position of the triggering member 62, and the sensor 61c is used for sensing the extreme position of the triggering member 62. When the sensor 61a senses the trigger 62, the sensor 61a generates a first sensing signal indicating that the trigger 62 is at the initial position, and when the sensor 61b senses the trigger 62, the sensor 61b generates a second sensing signal indicating that the trigger 62 is at the end position, and the signal indicating that the trigger 62 moves from the initial position to the end position, when the sensor 61b generates the second sensing signal, the lead screw nut 2114 stops moving due to the fact that the motor 2112 stops rotating under the control of the hot press forming apparatus 100 itself or an external controller, and at this time, the distance between the initial position and the end position is the pressing distance of the pressing assembly 212. The sensor 61c is used for sensing the limit position of the pressing component 212, when the trigger 62 passes or moves to reach the limit position, the lead screw nut 2114 stops moving due to the rotation stop of the motor 2112 controlled by the hot press molding apparatus 100 itself or an external controller, and an alarm is given, which indicates that the hot press molding apparatus 100 may be out of order. When the hot pressing requires multi-stage molding, the limit position may also be another press stop position, for example, when the trigger 62 moves from the initial position to the end position, the first stage hot pressing is performed, and after a certain time, the trigger moves to the limit position again to perform the second stage hot pressing. It is understood that the limiting member 61 is provided with sensors, the number and the positions of which can be adjusted according to the requirement, so as to adjust the distance between the initial position, the end position and the limit position. For example, two or more sensors 61a may be provided at the initial position to more accurately sense the initial position. The method of providing two or more sensors is also applicable to sensing of the end position and the extreme position.

Some further embodiments of the present application will be described below with reference again to fig. 1.

Referring to fig. 1, the hot press forming apparatus 100 further includes a slow cooling module 70 and a fast cooling module 80, which are sequentially disposed, for cooling the hot pressed product of the forming module 20 to form a final product.

In one embodiment, the creep-cooling module 70 includes a first creep-cooling module 71 and a second creep-cooling module 72, and the quench module 80 includes a first quench module 81 and a second quench module 82. The first slow cooling module 71, the second slow cooling module 72, the first fast cooling module 81 and the second fast cooling module 82 are sequentially arranged, the cooling temperature of the first slow cooling module 71 is 750-530 ℃, the cooling temperature of the second slow cooling module 72 is 530-450 ℃, the cooling temperature of the first fast cooling module 81 is 450-300 ℃, and the cooling temperature of the second fast cooling module 82 is 300-200 ℃. In one embodiment, the first and second quench modules 81 and 82 are water cooled.

In one embodiment, the thermoforming apparatus 100 further includes an external cooling module (not shown) for further cooling the product. The external cooling module comprises a first external cooling module and a second external cooling module, the cooling temperature of the first external cooling module is 200-100 ℃, and the cooling temperature of the second external cooling module is 50-normal temperature. Both of these may also be water cooled.

The above-mentioned hot press molding apparatus 100 can precisely control the moving speed and distance of the pressing member 212 by the driving combination of the servo motor and the ball screw, and thus can precisely control the pressure of the pressing member 212 at the time of molding. In addition, the pressing pressure of the pressing and holding assembly 212 is further accurately controlled through the detection mechanism 50, the pressing distance of the pressing and holding assembly 212 is further accurately controlled through the limiting mechanism 60, the forming process can be accurately controlled, and the forming effect is guaranteed.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present application and are not to be taken as limiting the present application, and that suitable changes and modifications to the above embodiments are within the scope of the present disclosure as long as they are within the spirit and scope of the present application.

Claims (10)

1. A hot press molding apparatus comprising:

the preheating module is used for preheating a product, wherein the product comprises any one of 2.5D glass and 3D glass;

the molding module is used for carrying out hot press molding on the preheated product;

it is characterized in that the preparation method is characterized in that,

the forming module comprises at least one forming module, the at least one forming module comprises a ball screw driving assembly and a pressing and holding assembly, and the ball screw driving assembly is connected with the pressing and holding assembly to drive the pressing and holding assembly to perform hot press forming on a product.

2. The thermoforming apparatus as claimed in claim 1, wherein the molding module comprises two molding modules arranged in an array, wherein the molding temperature of the molding module at the front end is 750-900 ℃, and the molding temperature of the molding module at the rear end is 800-900 ℃.

3. The hot press forming apparatus according to claim 1, wherein the ball screw driving assembly includes a mounting frame, a motor, a screw nut, and a connecting rod, the motor is mounted on the mounting frame and connected to the screw, the screw nut is disposed on the screw, the screw and the screw nut are both mounted in the mounting frame, one end of the connecting rod is connected to the screw nut, and the other end of the connecting rod passes through the mounting frame and is connected to the pressing assembly, the motor drives the screw to rotate so that the screw nut and the screw are engaged with each other to move, so as to drive the pressing assembly to move up and down.

4. The thermoforming apparatus of claim 3, wherein the ball screw drive assembly further comprises a guide portion and a linear slide, the linear slide being disposed on the mounting frame, the guide portion being mounted on the screw nut and slidably disposed on the linear slide.

5. The hot press forming apparatus as claimed in claim 4, wherein the guide part includes a connecting block and a slider fixed to the connecting block, the connecting block is fixed to the lead screw nut, and the slider is slidably disposed on the linear guide.

6. The hot press forming device as claimed in claim 5, wherein the hot press forming device further comprises a detection mechanism, the detection mechanism comprises a linkage block, a pressure sensor and a detected piece, the linkage block is fixed on the connection block, the pressure sensor is connected with the linkage block, the detected piece is arranged on the installation frame and located in the moving direction of the pressure sensor, and the linkage block moves along with the lead screw nut and is used for driving the pressure sensor to move towards the detected piece and press and hold the detected piece.

7. The hot press forming apparatus according to claim 3, further comprising a limiting mechanism, wherein the limiting mechanism includes a limiting member and a triggering member, the triggering member is disposed on the screw nut, the limiting member is fixed on the mounting frame and located in a moving direction of the triggering member, and the screw nut drives the triggering member to move to a position of the limiting member, so as to limit a pressing distance of the pressing and holding assembly.

8. A thermoforming apparatus as claimed in claim 3 wherein said holding assembly comprises a heating plate, a pressure equalizing plate and a plurality of heat insulating plates, said heat insulating plates being connected to each other, one of said heat insulating plates which is closest to one side of said product being connected to said connecting bar, the other of said heat insulating plates which is closest to the other side of said product being connected to said heating plate, said pressure equalizing plate being mounted on one side of said heating plate which is closest to said heat insulating plate.

9. A thermoforming apparatus as claimed in claim 8, characterised in that a cooling medium is passed through at least one of the heat-insulating panels.

10. The apparatus of claim 8, wherein an electric heating tube is provided in the heating plate.

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