A sandwich graphite mold for curved glass molding

By introducing positioning grooves and bending rod structures into the graphite mold, the elastic force of the spring is used to achieve rapid engagement and separation of the mold, which solves the problem of cumbersome connection of traditional graphite molds and improves operating efficiency and stability.

CN119735365BActive Publication Date: 2025-08-12SICHUAN HUCARBON SEMICON MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202510019431.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-01-07
Publication Date
2025-08-12
Estimated Expiration
2045-01-07

AI Technical Summary

Technical Problem

The connection method of traditional graphite molds is complicated and requires tools, which increases the operating burden of staff.

Method used

The positioning groove and bending rod structure are adopted to quickly engage and separate the mold with the spring force, simplifying the mold installation and disassembly process.

Benefits of technology

The rapid, stable connection and simple disassembly of the mold are achieved, reducing operating steps and improving work efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a sandwich graphite mold for forming curved glass, comprising: a mold body 1, wherein the mold body 1 and the mold body 2 form a complete mold, and the mold body 1 is provided with a pouring port 1, and the mold body 2 is provided with a pouring port 2. In the present invention, the mold body 1 and the mold body 2 are docked, and the positioning blocks on the side walls of the mold body 2 are engaged with the positioning grooves provided on the mold body 1, and then the bending rod can be rotated so that the end block at the end of the bending rod rotates to fit with the arc groove. During the rotation of the end block, the clamping rod can be slidably connected to the side wall of the end block under the elastic force of the spring 1 until the clamping hole provided on the end block is aligned with the clamping rod. Under the elastic force of the spring 1, the clamping rod can be extended into the clamping hole, and then the mold body 1 and the mold body 2 are fixed as one. The connection method of the mold body 1 and the mold body 2 is relatively simple and quick, eliminating tedious steps, so that the staff can quickly get started and operate.
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Description

Technical Field

[0001] The present invention relates to the technical field of graphite molds, in particular to a sandwich graphite mold for forming curved glass. Background Art

[0002] Graphite has become an indispensable mold material in glass manufacturing in recent years due to its chemical stability, resistance to molten glass infiltration, and its ability to maintain a stable composition. Graphite also exhibits excellent thermal shock resistance and minimal dimensional change with temperature. It is used to create molds for glass tubes, curved tubes, funnels, and various other shaped glass bottles. In the production of curved glass, molten glass is poured through an inlet into a sandwich graphite mold. Once the glass cools and takes shape, the mold can be disassembled and the formed glass can be removed.

[0003] Traditionally, the connection between the daughter and mother molds of graphite molds is usually threaded, using large-diameter, fine-pitch, and high-strength threads to secure the mold. Depending on the installation method, there are usually template-type, seat-type, and chamfered-type installations.

[0004] While screw threads can stably secure the sub-mold and the mother mold together, they are cumbersome and often require tools to connect. Therefore, improvements can be made to traditional graphite molds to make them easier and quicker to install and remove, reducing the burden on workers. Summary of the Invention

[0005] The purpose of the present invention is to solve the above problems and to propose a sandwich graphite mold for curved glass molding.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A sandwich graphite mold for forming curved glass, comprising:

[0008] Mold body 1, wherein the mold body 1 and mold body 2 constitute a complete mold, and mold body 1 is provided with a pouring gate 1, and mold body 2 is provided with a pouring gate 2, and the pouring gate 1 and the pouring gate 2 cooperate to form a complete pouring gate, and the mold body 1 and mold body 2 are respectively provided with a molding cavity 1 and a molding cavity 2, and the molding cavity 1 and the molding cavity 2 cooperate to facilitate product molding;

[0009] Positioning groove, the mold body 1 is provided with a positioning groove, and the mold body 2 is fixed with a positioning block engaged with the positioning groove;

[0010] A bent rod is rotatably connected to the mold body one, and an end block is fixed to the end of the bent rod, a clamping hole is provided on the end block, a side plate is fixed on the mold body two, and a fixing rod is fixed between the side plate and the mold body two, a spring is sleeved on the fixing rod, and the fixing rod is slidably connected to the circular hole provided on the vertical plate, a clamping rod extending into the clamping hole is fixed on the vertical plate, and a limiting member for limiting the clamping rod is provided on the mold body two.

[0011] Preferably, the limiting member includes a sliding groove opened on the second mold body, and a slider slidably connected to the sliding groove is fixed on the vertical plate, a screw sleeve is threadedly connected to the bent rod, and a round sleeve is threadedly connected to the screw sleeve, the side wall of the round sleeve is in contact with the slider, and a control member for controlling the position of the screw sleeve is provided on the second mold body.

[0012] Preferably, the control part includes a protrusion fixedly connected to the mold body 2, and a side groove is provided on the protrusion. A fixed disk is fixed on the outer wall of the screw sleeve, and an opening is provided on the fixed disk. There are multiple openings distributed at equal angles on the circumference of the fixed disk. A ring is slidably connected to the screw sleeve, and a through rod is fixed on the ring, and the through rod passes through the opening and engages with the side groove.

[0013] Preferably, a second spring is provided on the screw sleeve, and one end of the second spring abuts against the circular sleeve, and the other end abuts against the collar. The elastic force of the second spring pushes the collar to move until the collar abuts against the fixed disk.

[0014] Preferably, the side plate is provided with an arc-shaped groove that fits with the outer wall of the end block.

[0015] Preferably, a stop block protrudes from the inner wall of the circular sleeve, and the circular sleeve rotates and moves on the screw sleeve until the stop block abuts against the side wall of the screw sleeve, and the spring 2 is compressed, and at this time the circular sleeve will not block the movement of the slider in the slide groove.

[0016] Preferably, the fixed disk abuts against the protrusion, and the abutment abuts against the side wall of the screw sleeve. At this time, there is a certain distance between the round sleeve and the fixed disk. The ring can be moved on the screw sleeve by applying force to the handle fixed on the ring until the through rod is separated from the side groove and the opening. At this time, the screw sleeve is rotated, causing the screw sleeve and the round sleeve to move together on the bent rod until the screw sleeve is away from the protrusion and the bent rod can rotate normally and separate from the mold body two. At this time, the round sleeve still does not block the movement of the slider in the slide groove.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0018] 1. The present application connects mold body one with mold body two, and the positioning block on the side wall of mold body two is engaged with the positioning groove provided on mold body one. Then the bent rod can be rotated so that the end block at the end of the bent rod is rotated to fit with the arc groove. During the rotation of the end block, the elastic force of spring one can make the clamping rod and the side wall of the end block slide and connect until the clamping hole provided on the end block is aligned with the clamping rod. Under the elastic force of spring one, the clamping rod can be extended into the clamping hole. At this time, mold body one and mold body two are fixed as one. The connection method of mold body one and mold body two is relatively simple and quick, eliminating tedious steps, so that the staff can quickly get started and operate.

[0019] 2. In the present application, the screw sleeve is fixed to the protrusion under the action of the through rod at this time, that is, the screw sleeve cannot be rotated under force at this time, and the circular sleeve is rotated so that the circular sleeve gradually approaches the slider during rotation until the side wall of the circular sleeve abuts against the slider. At this time, the slider is restricted by the circular sleeve and cannot be moved in the slide groove under force, so the clamping rod cannot be moved under force, so the clamping rod can maintain its own position, and the bent rod cannot be rotated under force and separated from the mold body 2, and the connection between the mold body 1 and the mold body 2 is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Shown is a schematic diagram of the overall structure of a graphite mold provided in an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of a portion of the structure of a phantom provided according to an embodiment of the present invention is shown;

[0022] Figure 3 shows a schematic structural diagram of a second phantom provided according to an embodiment of the present invention;

[0023] Figure 4 A schematic diagram of the structure of one side of a phantom provided in an embodiment of the present invention is shown;

[0024] Figure 5 A schematic diagram of the structure of one side of a phantom provided in an embodiment of the present invention is shown;

[0025] Legend:

[0026] 1. Mold body 1; 2. Mold body 2; 3. Positioning groove; 4. Positioning block; 5. Bend rod; 6. End block; 7. Clamping hole; 8. Side plate; 9. Arc groove; 10. Fixing rod; 11. Spring 1; 12. Slide groove; 13. Vertical plate; 14. Round hole; 15. Slider; 16. Clamping rod; 17. Screw sleeve; 18. Fixing plate; 19. Opening; 20. Round sleeve; 21. Spring 2; 22. Stop block; 23. Ring; 24. Through rod; 25. Handle; 26. Bump; 27. Side groove; 28. Pouring gate 1; 29. Pouring gate 2; 30. Molding cavity 1; 31. Molding cavity 2. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0028] See also Figure 1-Figure 5 , the present invention provides a technical solution:

[0029] A sandwich graphite mold for forming curved glass, comprising:

[0030] The mold body 1, the mold body 1 and the mold body 2 constitute a complete mold, and the mold body 1 is provided with a pouring gate 28, and the mold body 2 is provided with a pouring gate 29. The pouring gate 28 and the pouring gate 29 cooperate to form a complete pouring gate. The mold body 1 and the mold body 2 are respectively provided with a molding cavity 30 and a molding cavity 31. The molding cavity 30 and the molding cavity 31 cooperate to facilitate product molding. This is a direct reference to the prior art and will not be described in detail here.

[0031] Positioning groove 3: The mold body 1 is provided with a positioning groove 3, and the mold body 2 is fixed with a positioning block 4 that engages with the positioning groove 3. With the cooperation of the positioning groove 3 and the positioning block 4, the connection between the mold body 1 and the mold body 2 is more stable and accurate, and there will be no deviation between the mold body 1 and the mold body 2, which will affect the accuracy of glass molding;

[0032] The bending rod 5 is rotatably connected to the mold body 1, and the end of the bending rod 5 is fixed with an end block 6, and a clamping hole 7 is provided on the end block 6. The mold body 2 is fixed with a side plate 8, and a fixing rod 10 is fixed between the side plate 8 and the mold body 2. The side plate 8 is provided with an arc groove 9 that fits the outer wall of the end block 6. A spring 11 is sleeved on the fixing rod 10, and the fixing rod 10 is slidably connected with the circular hole 14 provided on the vertical plate 13. A clamping rod 16 that extends into the clamping hole 7 is fixed on the vertical plate 13, and a limiting member for limiting the clamping rod 16 is provided on the mold body 2.

[0033] Specifically, such as Figure 1 and Figure 3As shown, the limiting member includes a slide groove 12 provided on the mold body 2, and a slider 15 slidably connected to the slide groove 12 is fixed on the vertical plate 13. A screw sleeve 17 is threadedly connected to the curved rod 5, and a round sleeve 20 is threadedly connected to the screw sleeve 17. The side wall of the round sleeve 20 abuts against the slider 15. The mold body 2 is provided with a control member for controlling the position of the screw sleeve 17. The outer wall of the end of the end block 6 is in a smooth arc shape, and the outer wall of the end of the clamping rod 16 is also in a smooth arc shape. Therefore, when the end block 6 rotates, the clamping rod 16 can be slidably connected to the outer wall of the end block 6 until the end block 6 is in contact with the arc groove 9. The clamping rod 16 can extend into the clamping hole 7 under the elastic force of the spring 11, thereby fixing the position of the end block 6, thereby fixing the position of the curved rod 5. At this time, the mold body 1 and the mold body 2 are stably connected as one.

[0034] Specifically, such as Figure 3 As shown, the control member includes a protrusion 26 fixedly connected to the mold body 2, and a side groove 27 is provided on the protrusion 26. A fixed disk 18 is fixed to the outer wall of the screw sleeve 17, and an opening 19 is provided on the fixed disk 18. The opening 19 is distributed at multiple angles around the fixed disk 18. A collar 23 is slidably connected to the screw sleeve 17, and a through rod 24 is fixed to the collar 23. The through rod 24 passes through the opening 19 and engages with the side groove 27. A spring 21 is sleeved on the screw sleeve 17, and one end of the spring 21 abuts the circular sleeve 20, and the other end abuts the collar 23. The elastic force of the spring 21 pushes the collar 23 to move until the collar 23 abuts the fixed disk 18.

[0035] Specifically, such as Figure 2 As shown, a stop block 22 protrudes from the inner wall of the circular sleeve 20. The circular sleeve 20 rotates and moves on the screw sleeve 17 until the stop block 22 abuts against the side wall of the screw sleeve 17. The spring 21 is compressed, and at this time the circular sleeve 20 will not block the movement of the slider 15 in the slide groove 12.

[0036] The fixed plate 18 abuts against the protrusion 26, and the abutment 22 abuts against the side wall of the screw sleeve 17. At this time, there is a certain distance between the circular sleeve 20 and the fixed plate 18. The handle 25 fixed on the collar 23 can be used to apply force to move the collar 23 on the screw sleeve 17 until the through rod 24 is separated from the side groove 27 and the opening 19. At this time, the screw sleeve 17 is rotated, causing the screw sleeve 17 and the circular sleeve 20 to move together on the bent rod 5 until the screw sleeve 17 is away from the protrusion 26 and the bent rod 5 can rotate normally and separate from the mold body 2. At this time, the circular sleeve 20 still does not block the movement of the slider 15 in the slide groove 12.

[0037] In summary, when the mold body 1 and the mold body 2 provided in this embodiment are molded together:

[0038] Mold body 1 is docked with mold body 2, and the positioning block 4 on the side wall of mold body 2 engages with the positioning groove 3 provided in mold body 1. Then, the curved rod 5 is rotated so that the end block 6 at the end of the curved rod 5 rotates to align with the arc-shaped groove 9. During the rotation of the end block 6, the elastic force of spring 11 allows the clamping rod 16 to slide into the side wall of the end block 6 until the clamping hole 7 provided in the end block 6 aligns with the clamping rod 16. Under the elastic force of spring 11, the clamping rod 16 can extend into the clamping hole 7, and mold body 1 and mold body 2 are now fixed as one.

[0039] At this time, it is necessary to limit the position of the mold body 1 and the mold body 2 to prevent the mold body 1 and the mold body 2 from accidentally separating. The limiting process is as follows:

[0040] The collar 23 is pushed by the handle 25 until the rod 24 is released from the hole 19. The screw sleeve 17 can then be rotated so that the fixing plate 18 of the screw sleeve 17 abuts against the protrusion 26 during rotation, and the opening 19 on the fixing plate 18 is aligned with the side groove 27 on the protrusion 26. The handle 25 can then be released, and the collar 23 moves closer to the fixing plate 18 under the elastic force of the spring 21 until the rod 24 on the collar 23 passes through the opening 19 and engages with the side groove 27.

[0041] At this point, the screw sleeve 17 is fixed to the bump 26 by the action of the through rod 24, meaning that the screw sleeve 17 cannot be rotated under any force. The circular sleeve 20 is rotated so that it gradually approaches the slider 15 during rotation until the sidewall of the circular sleeve 20 abuts against the slider 15. At this point, the slider 15 is restricted by the circular sleeve 20 and cannot be forced to move within the chute 12. Therefore, the clamping rod 16 cannot be forced to move, so the clamping rod 16 can maintain its position, and the bent rod 5 cannot be forced to rotate and separate from the mold body 2. At this point, molten glass can be poured into the molding cavity 1 30 and the molding cavity 2 31 through the pouring gate 1 28 and the pouring gate 2 29 until the glass cools and forms in the molding cavity 1 30 and the molding cavity 2 31.

[0042] After the glass is formed, it needs to be demoulded:

[0043] The circular sleeve 20 is rotated so that it gradually moves away from the slider 15 until the abutment 22 on the circular sleeve 20 abuts the side wall of the threaded sleeve 17. At this time, the movement of the slider 15 will not be affected by the circular sleeve 20. The handle 25 pushes the collar 23 to move until the rod 24 on the collar 23 disengages from the side groove 27 and the opening 19. At this time, the threaded sleeve 17 can be rotated so that the threaded sleeve 17 moves away from the protrusion 26 during rotation, and the circular sleeve 20 will move along with the threaded sleeve 17. The circular sleeve 20 will not affect the movement of the slider 15. At this time, the slider 15 can be pushed to move, so that the clamping rod 16 disengages the clamping hole 7 provided in the end block 6. At this time, the bent rod 5 can be rotated, causing the bent rod 5 to disengage from the mold body 2 during rotation. At this time, the mold body 1 and the mold body 2 can be separated by force, and the demoulding operation is completed.

[0044] The above description of the embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sandwich graphite mold for curved glass molding, characterized in that: include: Mold body 1 (1), said mold body 1 (1) and mold body 2 (2) constitute a complete mold, and mold body 1 (1) is provided with a pouring gate 1 (28), and mold body 2 (22) is provided with a pouring gate 2 (29), and pouring gate 1 (28) and pouring gate 2 (29) cooperate to form a complete pouring gate, and said mold body 1 (1) and mold body 2 (2) are respectively provided with a molding cavity 1 (30) and a molding cavity 2 (31), and the molding cavity 1 (30) and the molding cavity 2 (31) cooperate to facilitate product molding; Positioning groove (3), the first mold body (1) is provided with a positioning groove (3), and the second mold body (2) is fixed with a positioning block (4) that engages with the positioning groove (3); A bending rod (5), the mold body (1) is rotatably connected to the bending rod (5), and an end block (6) is fixed to the end of the bending rod (5), a clamping hole (7) is provided on the end block (6), a side plate (8) is fixed on the mold body (2), and a fixing rod (10) is fixed between the side plate (8) and the mold body (2), a spring (11) is sleeved on the fixing rod (10), and the fixing rod (10) is slidably connected to a circular hole (14) provided on the vertical plate (13), a clamping rod (16) extending into the clamping hole (7) is fixed on the vertical plate (13), and a limiting member for limiting the clamping rod (16) is provided on the mold body (2); The limiting member includes a slide groove (12) provided on the second mold body (2), and a slider (15) slidably connected to the slide groove (12) is fixed on the vertical plate (13), a screw sleeve (17) is connected to the bending rod (5) by a thread, and a round sleeve (20) is connected to the screw sleeve (17) by a thread, and the side wall of the round sleeve (20) abuts against the slider (15), and a control member for controlling the position of the screw sleeve (17) is provided on the second mold body (2); The control component includes a protrusion (26) fixedly connected to the mold body (2), and a side groove (27) is provided on the protrusion (26); a fixed disk (18) is fixed on the outer wall of the screw sleeve (17), and an opening (19) is provided on the fixed disk (18), and a plurality of openings (19) are distributed at equal angles on the circumference of the fixed disk (18); a collar (23) is slidably connected to the screw sleeve (17), and a through rod (24) is fixed on the collar (23), and the through rod (24) passes through the opening (19) and engages with the side groove (27).

2. The sandwich graphite mold for curved glass molding according to claim 1, characterized in that: A second spring (21) is provided on the screw sleeve (17), and one end of the second spring (21) abuts against the circular sleeve (20), and the other end abuts against the collar (23). The elastic force of the second spring (21) pushes the collar (23) to move until the collar (23) abuts against the fixed disk (18).

3. The sandwich graphite mold for curved glass molding according to claim 1, characterized in that: The side plate (8) is provided with an arc-shaped groove (9) that fits with the outer wall of the end block (6).

4. The sandwich graphite mold for curved glass molding according to claim 2, characterized in that: A stopper (22) protrudes from the inner wall of the circular sleeve (20), and the circular sleeve (20) rotates and moves on the screw sleeve (17) until the stopper (22) abuts against the side wall of the screw sleeve (17), and the spring 2 (21) is compressed. At this time, the circular sleeve (20) does not block the movement of the slider (15) in the slide groove (12).

5. The sandwich graphite mold for curved glass molding according to claim 1, characterized in that: The fixed disk (18) is in contact with the protrusion (26), and the abutment block (22) is in contact with the side wall of the screw sleeve (17). At this time, there is a certain distance between the circular sleeve (20) and the fixed disk (18). By applying force to the handle (25) fixed on the collar (23), the collar (23) is moved on the screw sleeve (17) until the through rod (24) is separated from the side groove (27) and the opening (19). At this time, the screw sleeve (17) is rotated, causing the screw sleeve (17) and the circular sleeve (20) to move together on the bent rod (5) until the screw sleeve (17) is away from the protrusion (26). When the bent rod (5) can rotate normally and separate from the mold body (2), the circular sleeve (20) at this time still does not block the movement of the slider (15) in the slide groove (12).

Citation Information

Patent Citations

  • Melt forming device for optical glass production

    CN118908543A

  • Precise metal mold

    CN220259473U