3D glass hot bending ceramic mold

Abstract

The utility model discloses a 3D (three-dimensional) glass hot bending ceramic mold. The 3D glass hot bending ceramic die comprises an upper bottom plate and a lower bottom plate, a female die fixing plate is arranged on the bottom face of the upper bottom plate, a female die is arranged in an inner cavity of the female die fixing plate and installed on the bottom face of the upper bottom plate through the female die fixing plate, a male die fixing plate is arranged on the top face of the lower bottom plate, and a male die is arranged in an inner cavity of the male die fixing plate. The male die is installed on the top face of the upper bottom plate through a male die fixing plate, the male die and the female die are combined to form a product and are both made of ceramic materials, the two sides of the male die are provided with material ejecting blocks used for ejecting the product, and springs are arranged between the bottom faces of the material ejecting blocks and the top face of the lower bottom plate. The utility model solves the problem in the prior art that indentations are easy to appear on the back surface of the glass and the product quality is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a 3D glass hot-bending ceramic mold. Background Art

[0002] The existing Chinese utility model patent with publication number CN207581655U and name is "A die structure for a 3D glass hot bending machine". The die structure of the disclosed 3D glass hot bending machine includes a mold body, and the mold body includes an upper punch, a lower die and a moving block. In the specific implementation process, the moving block rises to a certain height under the drive of the lower drive device to receive the product to be processed, and then the upper punch moves downward under the drive of the upper drive device, fits with the upper surface of the product to be processed, and continues to move downward under the action of the upper drive device. When the moving block returns to the inside of the second upper limit step, the moving block stops moving downward, and the upper punch realizes the compaction and molding of the product to be processed. Although this technical solution solves the problem of no support after the glass softens, the moving block and the lower die are in a sliding fit (the moving block and the lower die are in a clearance fit). When the upper punch presses the glass, the back of the glass is located at the junction of the moving block and the lower die, which is prone to indentation, affecting the product quality. Utility Model Content

[0003] The purpose of the utility model is to provide a 3D glass hot bending ceramic mold that can improve product quality in response to the shortcomings of the existing technology.

[0004] To achieve the above purpose, the technical solution adopted by the 3D glass hot bending ceramic mold of the utility model is:

[0005] A 3D glass hot-press bending ceramic mold comprises an upper base plate and a lower base plate. The bottom surface of the upper base plate is provided with a concave mold fixing plate, the inner cavity of the concave mold fixing plate is provided with a concave mold, and the concave mold is installed on the bottom surface of the upper base plate through the concave mold fixing plate. The top surface of the lower base plate is provided with a convex mold fixing plate, the inner cavity of the convex mold fixing plate is provided with a convex mold, and the convex mold is installed on the top surface of the upper base plate through the convex mold fixing plate. The convex mold and the concave mold are combined to form a product. Both are made of ceramic material. Ejecting blocks for ejecting products are provided on both sides of the convex mold, and a spring is provided between the bottom surface of the ejecting block and the top surface of the lower base plate.

[0006] Preferably, a boss is provided on the bottom edge of the ejecting block, and a lower limit step is provided on the punch fixing plate, and the lower limit step cooperates with the boss to limit the upward movement of the ejecting block.

[0007] Preferably, the bottom surface of the die fixing plate is provided with a leading block for squeezing the ejecting block.

[0008] Preferably, guide sleeves are provided on both sides of the bottom surface of the upper base plate, and the guide sleeves are fixed by the die fixing plate, and guide columns cooperating with the guide sleeves are provided on both sides of the top surface of the lower base plate, and the guide columns are fixed by the punch fixing plate.

[0009] Preferably, a guide hole for inserting a spring is provided on the bottom surface of the lifting block.

[0010] Compared with the prior art, the present invention has the following advantages:

[0011] 1. Place the punch at the bottom to support the product so that the surfaces of the punch and die in contact with the product can appear complete (non-spliced) to avoid indentations during the bending process, thereby ensuring product quality.

[0012] 2. Provide a lifting block to facilitate the removal of parts.

[0013] 3. The punch and die are made of ceramic. Ceramics have both low thermal conductivity and low thermal expansion coefficient, which can effectively reduce the temperature fluctuation and expansion deformation of the mold during use, ensure product precision, and are not prone to deformation and cracking during long-term heating and cooling, and have a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a top view of a 3D glass hot bending ceramic mold;

[0015] Figure 2 yes Figure 1 AA section view;

[0016] Figure 3 yes Figure 1 BB cross-sectional view;

[0017] Figure 4 yes Figure 1 CC cross-sectional view.

[0018] Among them, 10 upper base plate, 20 lower base plate, 30 die fixing plate, 301 upper limit step, 40 die, 401 upper hanging platform, 50 punch fixing plate, 501 lower limit step, 60 punch, 601 lower hanging platform, 70 ejecting block, 701 boss, 702 guide hole, 80 spring, 90 advance block, 100 guide sleeve, 110 guide column. DETAILED DESCRIPTION

[0019] The present invention is further illustrated below in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, modifications of various equivalent forms of the present invention by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0020] like Figure 1-4As shown, a 3D glass hot bending ceramic mold includes an upper base plate 10 and a lower base plate 20. The bottom surface of the upper base plate is fixedly connected to the die fixing plate 30 by bolts. The inner cavity of the die fixing plate is installed with a die 40. The die is installed on the bottom surface of the upper base plate through the die fixing plate. The specific fixing form of the die is: the left and right sides of the top of the die are integrally formed with an upper hanging platform 401, the die fixing plate is processed with an upper limit step 301 that cooperates with the upper hanging platform, the top surface of the lower base plate is fixedly connected to the punch fixing plate 50 by bolts, the inner cavity of the punch fixing plate is installed with a punch 60, and the punch is fixed with a punch. The fixed plate is installed on the top surface of the upper base plate, and the punch and the die are combined to form the product. Both are made of ceramic. The main components of ceramic are: silicon carbide, boron carbide, carbon black, titanium diboride. Ceramics have both low thermal conductivity and low thermal expansion coefficient, which can effectively reduce the temperature fluctuation and expansion deformation of the mold during use, ensure product accuracy, and are not prone to deformation and cracking during long-term heating and cooling. The service life is long. Ejector blocks 70 for ejecting products are arranged on both sides of the punch. The ejector blocks are also placed in the inner cavity of the punch fixed plate. The bottom edge of the ejector block is The body is formed with a boss 701, and the punch fixing plate is processed with a lower limit step 501. The lower limit step cooperates with the boss to limit the upward movement of the ejecting block. The lower limit step is also used to limit the displacement of the punch. The front and rear sides of the punch are integrally formed with a lower hanging platform 601 that cooperates with the lower limit step. Three guide holes 702 are provided on the bottom surface of the ejecting block. The spring 80 is inserted into the guide hole. The top of the spring contacts the bottom surface of the guide hole, and the bottom end of the spring contacts the top surface of the lower bottom plate. The guide hole limits the spring to ensure that the ejecting block ejects the material smoothly. The bottom surface of the die fixing plate is installed for The advance block 90 of the extrusion ejection block drives the ejection block compression spring to move downward when the die moves downward, making space to avoid interference with the product. Guide sleeves 100 are installed on both sides of the bottom surface of the upper base plate. The guide sleeves are shouldered guide sleeves, which are fixed by the die fixing plate. Guide posts 110 that cooperate with the guide sleeves are installed on both sides of the top surface of the lower base plate. The guide posts are fixed by the punch fixing plate. The guide posts and guide sleeves cooperate to guide the up and down movement of the die to ensure the accuracy of the cooperation between the die and the punch. The upper base plate, lower base plate, die fixing plate, punch fixing plate and ejection block are all made of 45 steel.

[0021] The specific working process and principle of a 3D glass hot bending ceramic mold: the glass is placed on the top surface of the punch, and the punch can always support the glass. When the glass softens, the upper base plate moves downward, and the advance block presses the ejection block before the bending part of the glass fits with the punch, making room until the die and the punch cooperate to press out the finished product. After the finished product cools, the upper base plate moves upward, and the product will remain on the punch due to the clamping force. At this time, after the top of the ejection block loses pressure, the spring drives the ejection block to reset and eject the product, making it easier to remove the product. The utility model replaces the position of the punch and the die, and the punch can always support the glass, preserving the integrity of the punch and die surface, avoiding indentations on the product during the bending process, and thus ensuring product quality. In addition, by utilizing the characteristics of ceramics, it can ensure product precision and further improve product quality.

Claims

1. A 3D glass hot bending ceramic mold, characterized by: It includes an upper base plate and a lower base plate. The bottom surface of the upper base plate is provided with a die fixing plate. The inner cavity of the die fixing plate is provided with a die. The die is installed on the bottom surface of the upper base plate through the die fixing plate. The top surface of the lower base plate is provided with a punch fixing plate. The inner cavity of the punch fixing plate is provided with a punch. The punch is installed on the top surface of the upper base plate through the punch fixing plate. The punch and the die are combined to form a product. Both are made of ceramic material. Ejecting blocks for ejecting products are provided on both sides of the punch. A spring is provided between the bottom surface of the ejecting block and the top surface of the lower base plate.

2. The 3D glass hot bending ceramic mold according to claim 1, characterized in that: The bottom edge of the ejecting block is provided with a boss, and the punch fixing plate is provided with a lower limit step, which cooperates with the boss to limit the upward movement of the ejecting block.

3. The 3D glass hot bending ceramic mold according to claim 1, characterized in that: The bottom surface of the die fixing plate is provided with a leading block for extruding the ejecting block.

4. The 3D glass hot bending ceramic mold according to claim 1, characterized in that: Guide sleeves are provided on both sides of the bottom surface of the upper base plate, and the guide sleeves are fixed by the die fixing plate. Guide columns cooperating with the guide sleeves are provided on both sides of the top surface of the lower base plate, and the guide columns are fixed by the punch fixing plate.

5. The 3D glass hot bending ceramic mold according to claim 1, characterized in that: The bottom surface of the ejecting block is provided with a guide hole for inserting a spring.

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