Hot-pressing demolding device, hot-pressing mold and hot-pressing method

Abstract

The present application belongs to the field of glass hot-pressing technology equipment, and particularly relates to a hot-pressing demolding device, a hot-pressing mold and a hot-pressing method. The hot-pressing demolding device comprises a lock catch assembly, a first half sleeve with a first groove and a second half sleeve with a second groove, and the first groove and the second groove jointly form a positioning hole; the lock catch assembly has a locked state and an unlocked state; when the lock catch assembly is in the locked state, the lock catch assembly connects the first half sleeve and the second half sleeve and restricts the relative movement of the first half sleeve and the second half sleeve in a first direction; when the lock catch assembly is in the unlocked state, the movement restriction of the first half sleeve and the second half sleeve is released. The present application can avoid forcibly pulling out the upper mold, the lower mold and the glass blank in the vertical direction, and improves the convenience of glass blank demolding.

Description

Technical Field

[0001] This invention belongs to the field of glass hot pressing technology and equipment, and particularly relates to a hot pressing demolding device, a hot pressing mold, and a hot pressing method. Background Technology

[0002] Currently, the precision hot-pressing technology for optical glass micro / nano components has broad prospects and significant implications for modern science and technology, especially in high-tech fields such as optics, electronic information, medical devices, and aerospace. Due to their complex structure and tiny size, the manufacturing technology of glass micro / nano components faces enormous challenges. Traditional optical component manufacturing techniques, such as machining, polishing, and chemical etching, are difficult to achieve high-precision control at the nanoscale, and are also costly and inefficient.

[0003] Compared to traditional processing methods, thermoforming technology offers higher resolution, enabling precise replication at the nanometer level. Its simplicity, short production cycle, and low cost make large-scale production of glass micro / nano components possible. However, in the thermoforming of high aspect ratio glass micro / nano components, their elongated shape and high aspect ratio make it difficult for the glass material to flow evenly into the deep groove, easily leading to incomplete filling or voids, thus affecting the quality of the finished product.

[0004] Therefore, to ensure high filling density and uniform material filling, very high pressure must be applied during hot pressing. During hot pressing, the upper mold core, lower mold core, and glass blank are typically assembled within a sleeve. High pressure can cause severe adhesion at the contact interfaces between the upper mold core, lower mold core, glass blank, and sleeve. Furthermore, during the application of high pressure, the sleeve needs to restrict the lateral flow of the glass material, resulting in significant tension forces between the sleeve and the glass. This makes it easy for the glass to jam against the sleeve after cooling and during demolding along the axial direction of the sleeve, leading to difficulties in demolding. Summary of the Invention

[0005] The purpose of this application is to provide a hot-press demolding device, which aims to solve the problem of how to improve the convenience of demolding.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0007] In a first aspect, a hot-press demolding device is provided, comprising: a locking assembly, a first half-sleeve having a first groove, and a second half-sleeve having a second groove, the first half-sleeve and the second half-sleeve being joined along a first direction, the first groove and the second groove forming a positioning hole; the locking assembly having a locked state and an unlocked state, wherein when the locking assembly is in the locked state, the locking assembly connects the first half-sleeve and the second half-sleeve and restricts the relative movement of the first half-sleeve and the second half-sleeve along the first direction; and when the locking assembly is in the unlocked state, it releases the relative movement of the first half-sleeve and the second half-sleeve along the first direction, wherein two locking assemblies are arranged opposite each other, and both locking assemblies are simultaneously in the locked state or the unlocked state.

[0008] In some embodiments, positioning portions are provided on both sides of the first groove, and the first groove is located between the two positioning portions; positioning grooves are provided on both sides of the second half, and the second groove is located between the two positioning grooves; when the locking assembly is in the locked state, the two positioning portions are respectively inserted into and locked in the two positioning grooves.

[0009] In some embodiments, the second half-set has a sliding cavity communicating with the positioning groove, and the locking assembly includes a locking tongue that is slidably disposed in the sliding cavity along a second direction, the first direction being perpendicular to the second direction, and a slot is formed on the surface of the positioning part facing away from the first groove; the locking tongue is partially exposed from the sliding cavity to engage with the slot, or the locking tongue retracts into the sliding cavity and disengages from the slot.

[0010] In some embodiments, the locking tongue is provided with a guide surface along the first direction, the guide surface being used to guide the positioning part into the positioning groove.

[0011] In some embodiments, the latch assembly further includes an elastic member having an elastic restoring force and located in the sliding cavity, one end of the elastic member abutting against the cavity wall of the sliding cavity, and the other end of the elastic member being connected to the latch.

[0012] In some embodiments, the second half-set also has a guide hole communicating with the sliding cavity, the elastic element is a tube spring, the latch assembly also includes a guide post, one end of the guide post is slidably inserted into the guide hole and connected to the locking tongue, the other end of the guide post is exposed, and the tube spring is fitted over the guide post.

[0013] In some embodiments, the latch assembly further includes a guide groove and a guide portion. The two ends of the latch are respectively provided with guide grooves, and the sliding cavity is respectively provided with guide portions at positions corresponding to the two guide grooves. The two guide portions are slidably disposed in the two guide grooves respectively.

[0014] In some embodiments, the positioning hole has a circular cross-sectional shape, and the central axis of the positioning hole is located within the first groove.

[0015] Secondly, embodiments of this application also provide a hot pressing mold, which includes a hot pressing demolding device, and the hot pressing mold further includes an upper mold and a lower mold that cooperates with the upper mold.

[0016] Thirdly, a hot pressing method is provided, which is carried out using the aforementioned hot pressing mold, the hot pressing method comprising the following steps:

[0017] The lower mold, the glass blank, and the upper mold are placed sequentially into the first groove;

[0018] The second half is aligned with the first half, the first groove and the second groove together form the positioning hole, and the latch assembly is switched to the locked state;

[0019] The glass blank is heated, and the upper mold and the lower mold are driven to move towards each other to hot press the glass blank;

[0020] Cool the upper mold and the lower mold, switch the locking assembly to the unlocked state, and separate the first half and the second half along the first direction.

[0021] The beneficial effects of this application are as follows: at the start of hot pressing, the first half and the second half are engaged and the locking assembly is switched to the locked state, so that the first half and the second half can effectively position the upper mold, the lower mold and the glass blank located in the positioning hole. After hot pressing is completed, the locking assembly is switched to the unlocked state, so that the first half and the second half can be separated in the horizontal direction, avoiding the upper mold, the lower mold and the glass blank being forcibly pulled out from the positioning hole in the vertical direction. This improves the convenience of demolding the glass blank and also avoids damage to the hot-pressed glass blank during demolding, thus improving the hot pressing quality. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or exemplary technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a three-dimensional structural schematic diagram of the hot pressing mold provided in the embodiments of this application;

[0024] Figure 2 yes Figure 1A cross-sectional view of the hot pressing demolding device of the hot pressing mold along the first direction;

[0025] Figure 3 yes Figure 1 An exploded diagram of a hot pressing mold;

[0026] Figure 4 This is a flowchart of a hot pressing method provided in another embodiment of this application.

[0027] The following are the labeling elements in the figure:

[0028] 100. Hot pressing mold; 101. Upper mold; 11. First half-set; 12. Second half-set; 13. Locking assembly; 111. First groove; 112. Slot; 113. Positioning part; 121. Second groove; 122. Positioning groove; 123. Sliding cavity; 124. Guide hole; 125. Guide part; 136. Guide groove; 131. Locking tongue; 132. Guide post; 133. Elastic element; 134. Wrench; 135. Pull rod; 137. Check wall; 138. Guide surface; 102. Lower mold; 103. Micropore; 104. Glass blank; Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the scope of this application.

[0030] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly or indirectly attached to that other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to that other component. The terms "upper," "lower," "left," "right," etc., indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, and are for descriptive convenience only, not indicating or implying that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. "A plurality" means two or more, unless otherwise explicitly defined.

[0031] Please see Figures 1 to 3 This application provides a hot pressing demolding device, a hot pressing mold 100 having the same, and a hot pressing method for hot pressing glass blanks using the hot pressing mold 100.

[0032] During the hot pressing process, a hot pressing demolding device can be connected to the hot press. This device can fix the upper mold 101, lower mold 102, and glass blank 104, thereby hot pressing the glass blank 104. This allows for the hot pressing of micro / nano structures with high aspect ratios onto the plate-shaped glass blank 104. The glass blank 104 can be optical glass, such as BK7. The aspect ratio of the micro / nano structures can range from 1 to 10, for example, 1, 2, 3, 4, 5.5, or 10. The micro / nano structures include microstructures with micrometer-scale dimensions and / or microstructures with nanometer-scale dimensions. Microstructures can be grooves and / or protrusions.

[0033] Please see Figures 1 to 3 The hot-press demolding device includes: a locking assembly 13, a first half-piece 11 with a first groove 111, and a second half-piece 12 with a second groove 121. The first half-piece 11 and the second half-piece 12 are joined together along a first direction. The first groove 111 and the second groove 121 are respectively arranged along the axial direction of the first half-piece 11 and the second half-piece 12, and together form a positioning hole. In this embodiment, the first direction can be along the horizontal direction, and the axial direction of the first half-piece 11 and the second half-piece 12 is along the vertical direction. Thus, along the horizontal direction, the first groove 111 and the second groove 121 can be spliced ​​together to form a positioning hole, which facilitates the sequential placement of the lower mold 102, the glass blank 104, and the upper mold 101 into the positioning hole. The first direction can be represented as the X direction.

[0034] Please see Figures 1 to 3 The locking assembly 13 has a locked state and an unlocked state. When the locking assembly 13 is in the locked state, the locking assembly 13 connects the first half-set 11 and the second half-set 12 and restricts the relative movement of the first half-set 11 and the second half-set 12 in the first direction; that is, the locking assembly 13 can fix the connection between the first half-set 11 and the second half-set 12 in the horizontal direction, which facilitates the positioning of the upper mold 101 and the lower mold 102 for hot pressing of the glass blank 104.

[0035] Please see Figures 1 to 3 When the locking assembly 13 is in the unlocked state, it releases the relative movement of the first half-piece 11 and the second half-piece 12 along the first direction. Two locking assemblies 13 are arranged opposite each other, and both locking assemblies 13 are simultaneously in the locked or unlocked state. The two locking assemblies 13 are symmetrically arranged about the central axis of the positioning hole, thereby improving the connection and positioning effect of the first half-piece 11 and the second half-piece 12.

[0036] Please see Figures 1 to 3The hot pressing demolding device provided in this application embodiment, at the start of hot pressing, the first half-set 11 and the second half-set 12 are docked and the locking assembly 13 is switched to the locked state, so that the first half-set 11 and the second half-set 12 can effectively position the upper mold 101, the lower mold 102 and the glass blank 104 located in the positioning hole. After hot pressing is completed, the locking assembly 13 is switched to the unlocked state, so that the first half-set 11 and the second half-set 12 can be separated in the horizontal direction, avoiding the upper mold 101, the lower mold 102 and the glass blank 104 being forcibly pulled out from the positioning hole in the vertical direction, improving the convenience of demolding the glass blank 104, and also preventing the glass blank 104 after hot pressing from being damaged during the demolding process, thus improving the hot pressing quality.

[0037] Please see Figures 1 to 3 It is also understood that the aspect ratio of the micro-nano structure in this application can be 5. The glass blank 104 with micro-nano structure is hot-pressed through the split first half set 11 and second half set 12, which can not only provide a limiting function during the hot pressing process, but also reduce the demolding difficulty during the cooling and demolding stage, and achieve rapid demolding, thereby improving the processing efficiency of the glass blank 104 and reducing the manufacturing cost.

[0038] Please see Figures 1 to 3 Optionally, multiple locking components 13 can be arranged at intervals along the vertical direction, with each locking component 13 arranged in two linear columns along the vertical direction, thereby improving the locking effect on the connection between the first half-set 11 and the second half-set 12.

[0039] Please see Figure 2 and Figure 3 In some embodiments, positioning portions 113 are provided on both sides of the groove edge of the first groove 111. The positioning portions 113 are arranged along the axial direction of the first half-piece 11. The first groove 111 is located between the two positioning portions 113. Positioning grooves 122 are provided on both sides of the second half-piece 12. The positioning grooves 122 are arranged along the axial direction of the second half-piece 12. The second groove 121 is located between the two positioning grooves 122 and connects the two positioning grooves 122. When the locking assembly 13 is in the locked state, the two positioning portions 113 are respectively inserted into and locked in the two positioning grooves 122.

[0040] Optionally, during hot pressing, the two positioning parts 113 are respectively inserted into the two positioning slots 122, and the two locking components 13 are respectively set corresponding to the two positioning parts 113 or the two positioning slots 122. The two locking components 13 are simultaneously switched to the locked state, locking the positioning parts 113 into the corresponding positioning slots 122. Through the cooperation of the positioning parts 113 and the positioning slots 122, the docking accuracy of the first half-set 11 and the second half-set 12 and the assembly efficiency are improved. After hot pressing is completed, the two locking components 13 are simultaneously switched to the unlocked state, and the two positioning parts 113 can be pulled out from the two positioning slots 122 in the horizontal direction, thereby realizing the separation of the first half-set 11 and the second half-set 12 and improving the convenience of demolding.

[0041] Please see Figure 2 In some embodiments, the second half-set 12 has a sliding cavity 123 communicating with the positioning groove 122. The locking assembly 13 includes a locking tongue 131 slidably disposed in the sliding cavity 123 along a second direction. The first direction is perpendicular to the second direction. The surface of the positioning part 113 facing away from the first groove 111 has a slot 112. The locking tongue 131 protrudes from the sliding cavity 123 to engage with the slot 112 and abuts against the inner wall of the slot 112 along the first direction to restrict the movement of the positioning part 113 along the first direction; or the locking tongue 131 retracts into the sliding cavity 123 and disengages from the slot 112 to release the movement restriction of the positioning part 113 along the first direction. The second direction can also be horizontal, and the second direction can be represented as the Y direction.

[0042] It is understandable that the locking tongue 131 can move in the positive direction of the Y direction or in the negative direction of the Y direction, that is, it can reciprocate linearly within the sliding cavity 123.

[0043] Optionally, the user can switch the locking assembly 13 between the unlocked and locked states by pulling or pushing the locking tongue 131, quickly locking or unlocking the first half-set 11 and the second half-set 12. After the locking tongue 131 engages with the slot 112, it locks the engagement of the first half-set 11 and the second half-set 12 and provides additional mechanical support to prevent the first half-set 11 and the second half-set 12 from accidentally coming loose.

[0044] Please see Figure 3 In some embodiments, the latch 131 has a guide surface 138 along a first direction. The guide surface 138 is used to guide the positioning part 113 to slide and finally insert into the positioning groove 122.

[0045] It is understandable that the positioning part 113 abuts against the bottom of the positioning groove 122. The surface of the positioning part 113 at the abutment position is flat, and the bottom of the positioning groove 122 is also flat. Thus, after the positioning part 113 is inserted into the positioning groove 122, the positioning part 113 and the positioning groove 122 are abutted against each other as a plane. This is beneficial for the docking and positioning of the first half-set 11 and the second half-set 12, and improves the positioning accuracy of the lower mold 102 and the upper mold 101.

[0046] Optionally, when the positioning part 113 is inserted into the positioning groove 122, the positioning part 113 abuts against the guide surface 138 and simultaneously drives the locking tongue 131 to retract into the sliding cavity 123 along the second direction. After the positioning part 113 is inserted into place, the locking tongue 131 is exposed from the sliding cavity 123 and locked into the slot 112 under the action of external force.

[0047] It is also understandable that the sliding setting of the locking tongue 131 can reduce the friction between the guide surface 138 and the positioning part 113, reduce the wear rate, and improve the structural durability.

[0048] Please see Figures 1 to 3 In some embodiments, the locking assembly 13 further includes an elastic member 133 having elastic restoring force and located in the sliding cavity 123, one end of the elastic member 133 abutting against the cavity wall of the sliding cavity 123, and the other end of the elastic member 133 being connected to the locking tongue 131.

[0049] Optionally, during the process of the positioning part 113 being inserted into the positioning groove 122, the positioning part 113 drives the locking tongue 131 to retract into the sliding cavity 123, and the locking tongue 131 simultaneously compresses the elastic element 133. After the positioning part 113 is inserted into place, the elastic element 133 drives the locking tongue 131 to re-engage into the slot 112 by its own elastic restoring force, thereby locking the positioning part 113.

[0050] Please see Figures 1 to 3 It is also understandable that when demolding is required, an external force drives the locking tongue 131 along the second direction to compress the elastic element 133 and retract it into the sliding cavity 123. At this time, the locking tongue 131 exits from the slot 112, thereby releasing the movement restriction on the positioning part 113, and the locking assembly 13 is in the unlocked state. After the external force is removed, the elastic element 133 relies on its own elastic restoring force to drive the locking tongue 131 to automatically reset, without the need for additional operation of the locking tongue 131, thus improving the convenience of use.

[0051] Please see Figures 1 to 3 In some embodiments, the second half 12 is also provided with a guide hole 124 that connects to the sliding cavity 123. The elastic element 133 is a tube spring. The locking assembly 13 also includes a guide post 132. One end of the guide post 132 is slidably inserted into the guide hole 124 and connected to the locking tongue 131. The other end of the guide post 132 is exposed. The tube spring is fitted over the guide post 132.

[0052] Optionally, the combination of the guide post 132 and the guide hole 124 can guide the sliding of the latch 131, ensuring that the latch 131 can slide smoothly in the second direction. A spring tube is sleeved on the guide post 132, with one end of the spring tube abutting against the latch 131 and the other end of the spring tube abutting against the edge of the guide hole 124. When the guide post 132 slides outward, the spring tube is compressed and deformed. After the external force is removed, the spring tube can drive the latch 131 to return to its original position.

[0053] It is understandable that the locking tongue 131 is provided with a check wall 137. After the locking tongue 131 is engaged in the slot 112, the check wall 137 abuts against the inner wall of the slot 112 along the first direction, and the abutment is between planes, which can improve the positioning and docking accuracy of the first half-set 11 and the second half-set 12.

[0054] Understandably, during the hot pressing process, the groove wall of the positioning groove 122 can provide support for the positioning part 113, so that the positioning hole maintains the set shape, avoids relative movement between the upper mold 101 and the lower mold 102 along the radial direction of the positioning hole, and improves the hot pressing accuracy of the glass blank 104.

[0055] Please see Figures 1 to 3 In some embodiments, two guide holes 124 are arranged at intervals, and two guide posts 132 are arranged at intervals. The two guide posts 132 are located at the two guide holes 124 respectively. Each guide post 132 is provided with a tube spring. The locking assembly 13 also includes a pull rod 135, and the two ends of the pull rod 135 are respectively connected to the exposed ends of the two guide posts 132.

[0056] Optionally, the lever 135 is provided with a wrench 134 for a person to hold. By pulling the lever 135 with the wrench 134, the two guide posts 132 are pulled out of the sliding cavity 123, so that the locking assembly 13 is switched from the locked state to the unlocked state, and the tube spring is compressed at the same time. After the external force is removed, the tube spring drives the locking tongue 131 to reset.

[0057] Please see Figures 1 to 3 In some embodiments, the latch assembly 13 further includes a guide groove 136 and a guide portion 125. The two ends of the latch 131 are respectively provided with guide grooves 136, and the sliding cavity 123 is respectively provided with guide portions 125 at the positions corresponding to the two guide grooves 136. The two guide portions 125 are respectively slidably disposed in the two guide grooves 136.

[0058] Optionally, the guide groove 136 has a dovetail groove structure, and the shape of the guide part 125 is adapted to the shape of the guide groove 136. The cooperation between the guide part 125 and the guide groove 136 enables the locking tongue 131 to maintain smooth sliding, avoid lateral deviation, improve the positioning accuracy of the locking assembly 13, and the cooperation between the guide part 125 and the guide groove 136 reduces the jamming phenomenon during the sliding process and improves the operating efficiency of the locking assembly 13.

[0059] Please see Figures 1 to 3 In some embodiments, the positioning hole has a circular cross-sectional shape, and the central axis of the positioning hole is located within the first groove 111. It is understood that the upper mold 101, the lower mold 102, and the glass blank 104 also have circular cross-sectional shapes, and the projections of the centers of each circle along the vertical direction coincide.

[0060] Please see Figures 1 to 3 Optionally, the positioning hole is a circular hole, and the portion of the positioning hole located in the first groove 111 is larger than the portion of the positioning hole located in the second groove 121. That is, the center of the cross-sectional shape of the positioning hole is located in the first groove 111, so that the first groove 111 surrounds most of the glass blank 104 along the circumference of the glass blank 104, while the second groove 121 surrounds the other small portion of the glass blank 104 along the circumference of the glass blank 104. During demolding, the connection between the first half-set 11 and the glass blank 104 remains unchanged, and the external force drives the second half-set 12 to move along the first direction. Since the circumferential length of the second groove 121 surrounding the glass blank 104 is less than half the circumference of the glass blank 104, the second half-set 12 can be easily driven to separate from the glass blank 104, avoiding jamming and improving the smoothness of the separation between the second half-set 12 and the glass blank 104.

[0061] After the second half of the set 12 is separated, the connection between the glass blank 104 and the first half of the set 11 is then separated, and the upper mold 101, the glass blank 104 and the lower mold 102 are then separated, finally achieving complete demolding of the glass blank 104.

[0062] This application also provides a hot pressing mold 100, which includes a hot pressing demolding device. The specific structure of the hot pressing demolding device is the same as that in the above embodiments. Since this hot pressing method adopts all the technical solutions of all the above embodiments, it also has all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0063] The hot press mold 100 also includes an upper mold 101 and a lower mold 102 that cooperates with the upper mold 101. The hot press mold 100 can be used to hot press the glass blank 104.

[0064] Please see Figure 4 The present invention also proposes a hot pressing method, which uses the hot pressing mold 100 described above. The specific structure of the hot pressing mold 100 is as described in the above embodiments. Since the hot pressing method adopts all the technical solutions of all the above embodiments, it also has all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0065] Please see Figure 4 The hot pressing method includes the following steps:

[0066] S1: The lower mold 102, glass blank 104 and upper mold 101 are placed into the first groove 111 in sequence; the upper surface of the lower mold 102 is provided with micro holes 103, and multiple micro holes 103 are arranged at intervals, and the glass blank 104 covers each micro hole 103.

[0067] S2: Connect the second half-piece 12 with the first half-piece 11, the first groove 111 and the second groove 121 together form a positioning hole, and switch the locking assembly 13 to the locked state;

[0068] S3: Heat the glass blank 104 and drive the upper mold 101 and the lower mold 102 to move towards each other to hot press the glass blank 104; press part of the material of the glass blank 104 into the micropores 103, thereby hot pressing out micro-nano structures on the lower surface of the glass blank 104; the glass blank 104 can be heated by thermal radiation or thermal conduction.

[0069] S4: Cool the upper mold 101 and the lower mold 102, switch the locking assembly 13 to the unlocked state, separate the first half 11 and the second half 12 along the first direction, and take out the hot-pressed glass blank 104.

[0070] Optionally, the user can pull the two wrenches 134 in the second direction with both hands, and the wrenches 134 can drive the locking tongue 131 to retract into the sliding cavity 123, so that the two locking components 13 can be switched to the unlocked state at the same time. Then, the user can separate the first half 11 and the second half 12 in the first direction with both hands. That is, the switching of the state of the two locking components 13 and the separation of the first half 11 and the second half 12 can be completed in one go, which not only improves the convenience of demolding, but also improves the efficiency of demolding.

[0071] The above are merely optional embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A hot-press demolding device, characterized in that, include: The system comprises a locking assembly, a first half-sleeve having a first groove, and a second half-sleeve having a second groove, the first half-sleeve and the second half-sleeve being joined along a first direction, the first groove and the second groove together forming a positioning hole; the locking assembly has a locked state and an unlocked state; when the locking assembly is in the locked state, the locking assembly connects the first half-sleeve and the second half-sleeve and restricts the relative movement of the first half-sleeve and the second half-sleeve along the first direction; when the locking assembly is in the unlocked state, it releases the relative movement of the first half-sleeve and the second half-sleeve along the first direction; wherein, two locking assemblies are arranged opposite each other, and both locking assemblies are simultaneously in the locked state or the unlocked state. The first groove has positioning parts on both sides of the groove edge, and the first groove is located between the two positioning parts; the second half has positioning grooves on both sides, and the second groove is located between the two positioning grooves; when the locking assembly is in the locked state, the two positioning parts are respectively inserted into and locked in the two positioning grooves; The second half-set has a sliding cavity communicating with the positioning groove. The locking assembly includes a locking tongue that is slidably disposed in the sliding cavity along a second direction, the first direction being perpendicular to the second direction. The surface of the positioning part facing away from the first groove has a slot. The locking tongue protrudes from the sliding cavity to engage with the slot, or the locking tongue retracts into the sliding cavity and disengages from the slot. The locking tongue is provided with a check wall. After the locking tongue is engaged in the slot, the check wall abuts against the inner wall of the slot along the first direction, and the abutment is between two planes, so as to improve the positioning and docking accuracy of the first half and the second half. The positioning hole has a circular cross-sectional shape, and the central axis of the positioning hole is located within the first groove; the portion of the positioning hole located in the first groove is larger than the portion of the positioning hole located in the second groove.

2. The hot-press demolding device as described in claim 1, characterized in that: The locking tongue is provided with a guide surface along the first direction, and the guide surface is used to guide the positioning part to be inserted into the positioning groove.

3. The hot-press demolding device as described in claim 1, characterized in that: The locking assembly further includes an elastic element with elastic restoring force located in the sliding cavity, one end of the elastic element abutting against the cavity wall of the sliding cavity, and the other end of the elastic element connected to the locking tongue.

4. The hot-press demolding device as described in claim 3, characterized in that: The second half-set also has a guide hole that connects to the sliding cavity. The elastic element is a tube spring. The locking assembly also includes a guide post. One end of the guide post is slidably inserted into the guide hole and connected to the locking tongue. The other end of the guide post is exposed. The tube spring is fitted over the guide post.

5. The hot-press demolding device as described in any one of claims 1-4, characterized in that: The latch assembly further includes guide grooves and guide parts. Guide grooves are respectively provided at both ends of the latch tongue. Guide parts are respectively provided in the sliding cavity corresponding to the positions of the two guide grooves. The two guide parts are slidably disposed in the two guide grooves.

6. A hot pressing mold, characterized in that, The hot pressing mold includes the hot pressing mold as described in any one of claims 1-5, wherein the hot pressing mold further includes an upper mold and a lower mold that cooperates with the upper mold.

7. A hot pressing method, characterized in that, The hot pressing method, implemented using the hot pressing mold as described in claim 6, includes the following steps: The lower mold, the glass blank, and the upper mold are placed sequentially into the first groove; The second half is aligned with the first half, the first groove and the second groove together form the positioning hole, and the latch assembly is switched to the locked state; The glass blank is heated, and the upper mold and the lower mold are driven to move towards each other to hot press the glass blank; Cool the upper mold and the lower mold, switch the locking assembly to the unlocked state, and separate the first half and the second half along the first direction.

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