Glass mold

Abstract

The invention provides a glass mold which comprises a mold body, a base and a limiting assembly, the mold body comprises a bottom mold with a cavity and secondary molds arranged on the two sides of the bottom mold, and the secondary molds communicate with the cavity to form a cavity used for containing molten glass; the base comprises a bottom plate used for fixing the bottom die and a moving block connected with the bottom plate in a sliding mode, the moving block is connected with the secondary die and used for carrying the secondary die to move to be close to or away from the bottom die, and the limiting assembly comprises a stop structure connected with the end of the bottom plate and a limiting structure used for limiting the secondary die. The stop structure and the moving block form an inserting groove, and the limiting structure is inserted into the limiting groove and abuts against the moving block and the stop structure. Through the structure of the glass mold, the problem that the secondary mold bounces off outwards is solved, so that the phenomenon of glass material leakage caused by an overlarge gap between the bottom mold and the secondary mold is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of mold equipment, and in particular to a glass mold. Background Art

[0002] Glass forming is the process of transforming molten glass into a geometrically shaped product. This process is called primary forming or hot-end forming. Glass molds are often used in this process. Traditional glass molds typically feature a base mold with an ejector pin at the bottom, which is used to eject the formed glass. However, if the sides of the glass mold have an uneven structure, interference between the mold side and the formed glass may occur. Directly ejecting the formed glass with the ejector pin can damage the glass.

[0003] Chinese patent (CN222411317U) discloses a glass mold comprising a base mold having a cavity and a secondary mold with an uneven structure disposed on the side of the base mold. The secondary mold, located near one end of the cavity, forms a mold cavity with the cavity for containing molten glass. The secondary mold is provided with a first fixed block for securing the secondary mold, and the secondary mold is slidable relative to the first fixed block. The bottom of the base mold is provided with a support for vertically lifting the base mold upward. The contact surface between the first fixed block and the secondary mold is tilted relative to the direction of movement of the support to facilitate movement of the secondary mold. However, this glass mold has the risk of increasing the gap between the base mold and the secondary mold after prolonged movement. If the gap between the base mold and the secondary mold is too large, glass material may leak, ultimately resulting in a reduced product qualification rate.

[0004] In view of this, it is necessary to design a glass mold to solve one of the above problems. Summary of the Invention

[0005] The present application provides a glass mold. The glass mold of the present application can effectively prevent the secondary mold from bouncing to both sides, thereby effectively improving the quality of the finished glass product.

[0006] In order to achieve the above objectives, the technical solutions provided by this application are as follows: The present application provides a glass mold, wherein the glass mold comprises: The mold body includes a bottom mold having a cavity and secondary molds provided on both sides of the bottom mold, wherein the side of the secondary mold facing the bottom mold is connected to the cavity to form a mold cavity for containing glass liquid; A base, the base comprising a bottom plate for fixing the bottom mold, a moving block slidably connected to the bottom plate, the moving block being connected to the secondary mold for carrying the secondary mold to move closer to or away from the bottom mold; The limiting assembly includes a stop structure connected to the end of the base plate and a limit structure for limiting the secondary mold. The stop structure is located on the radial outside of the moving block along the base plate. The stop structure and the moving block form a plug-in groove. The limiting structure is inserted into the limit groove and abuts against the moving block and the stop structure respectively.

[0007] Furthermore, the limiting structure has a first contact surface abutting against the moving block, and the moving block is provided with a first guide surface cooperating with the first contact surface, and both the first contact surface and the first guide surface are arranged to be inclined outward and downward.

[0008] Furthermore, the base further includes a friction plate provided between the limiting structure and the moving block, and the friction plate is provided on the first contact surface and / or the first guide surface.

[0009] Furthermore, a mounting groove for mounting the friction plate is formed on the moving block, and the depth of the mounting groove is not greater than the thickness of the friction plate.

[0010] Furthermore, the limiting structure includes a limiting body and an auxiliary limiting block detachably mounted on a side of the limiting body close to the moving block, and the first contact surface is formed on the auxiliary limiting block.

[0011] Furthermore, the limiting structure has a second contact surface abutting against the stopping structure, and the stopping structure includes a second guide surface cooperating with the second contact surface, and both the second guide surface and the second contact surface are arranged to be inclined inward and downward.

[0012] Furthermore, the stop structure includes a stop plate mounted on the base plate, and a guide block detachably mounted on the stop plate, the second guide surface is formed on the guide block, and the guide block is an isosceles trapezoid.

[0013] Furthermore, the mold body also includes a ring mold installed on the upper end of the bottom mold, and the limiting structure is detachably installed on the outer side of the ring mold.

[0014] Furthermore, it also includes a driving assembly for driving the moving block to slide relative to the base plate, the driving assembly includes a driving device and a shift fork connected to the driving device, and the shift fork is connected to the moving block to drive the moving block to slide relative to the base plate.

[0015] Furthermore, the shift fork is provided with a pair, the base plate is provided with a pair of shift fork slide grooves penetrating along its thickness direction for the shift fork to pass through, and an intermediate beam between the shift fork slide grooves, the driving device is provided at the lower part of the intermediate beam, and one of the moving block and the intermediate beam is provided with a guide rail, and the other is provided with a guide rail groove cooperating with the guide rail.

[0016] Compared with the related art, the beneficial effect of the present application is that: by using the glass mold of the present application, the secondary mold is limited to the side of the bottom mold by a limiting component, and the secondary mold will not pop outward, thereby avoiding the phenomenon of glass material leakage due to excessive gap between the bottom mold and the secondary mold, thereby improving the quality of the glass product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of a glass mold according to an embodiment of the present invention.

[0018] Figure 2 This is a front view of a glass mold according to another embodiment of the present invention.

[0019] Figure 3 yes Figure 2 Schematic diagram of the three-dimensional structure of the glass mold.

[0020] Figure 4 yes Figure 3 Schematic diagram of the three-dimensional structure of the base and limit assembly in the glass mold.

[0021] Figure 5 yes Figure 3 A schematic diagram of the three-dimensional structure from another angle showing a limiting component hidden in the glass mold.

[0022] Figure 6 yes Figure 3 Schematic diagram of the three-dimensional structure of the midsole plate.

[0023] Among them, 10-mold body, 11-bottom mold, 12-secondary mold, 13-ring mold, 20-base, 21-bottom plate, 211-fork slide, 212-middle beam, 213-avoidance space, 22-moving block, 221-step, 222-first guide surface, 223-installation groove, 224-guide rail groove, 225-receiving groove, 226-body, 227-transition block, 23-fixed seat, 24-friction plate, 30-limiting assembly, 31-limiting structure, 311-first contact surface, 312-second contact surface, 313-limiting body, 314-auxiliary limiting block, 32-stop structure, 321-second guide surface, 322-stop plate, 323-guide block, 33-plug-in slot, 40-driving assembly, 41-fork, 42-guide rail. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts should fall within the scope of protection of this application.

[0025] It should be noted that the terms "upper" and "lower" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings and are intended only to simplify the description of this application. They do not indicate or imply that the device referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be construed as limiting the scope of protection of this application. Specifically, in this application, the direction toward the ground is considered "down," and conversely, the direction away from the ground is considered "up." All other descriptions of directions are defined based on "upper" and "lower."

[0026] In the various figures of the present application, for the sake of convenience, some dimensions of structures or parts are exaggerated relative to other structural parts. Therefore, they are only used to illustrate the basic structure of the subject matter of the present application.

[0027] The present application provides a glass mold for making glass products, such as Figures 1 to 6 As shown, the glass mold includes a mold body 10 , a base 20 for fixing the mold body 10 , and a limiting assembly 30 provided between the mold body 10 and the base 20 .

[0028] like Figures 1 to 3 As shown, the mold body 10 comprises a base mold 11 with a cavity and secondary molds 12 disposed on either side of the base mold 11. The secondary molds 12, on the side closest to the base mold 11, feature uneven contours to create a shaped glass product. The secondary molds 12, on the side facing the base mold 11, communicate with the cavity to form a mold for accommodating molten glass. After the glass product is finished, the secondary molds 12 move away from the base mold 11, forcing the base mold 11 upward, completing the demolding process for the glass product.

[0029] The secondary molds 12 are arranged on opposite sides of the bottom mold 11 . When the glass product is shaped along the circumference, the secondary molds 12 are semicircular or multiple secondary molds 12 are arranged at intervals on the sides of the bottom mold 11 .

[0030] The mold body 10 also includes a ring mold 13 fixedly installed at the upper end port of the bottom mold 11 to ensure that the secondary mold 12 is accurately aligned with the bottom mold 11 when closed. It can also be used to fix or support the limit assembly 30.

[0031] like Figures 1 to 6 As shown, the base 20 includes a bottom plate 21 for fixing the bottom mold 11, and a moving block 22 slidably connected to the bottom plate 21. The moving block 22 is connected to the secondary mold 12 and is used to carry the secondary mold 12 to move closer to or away from the bottom mold 11. Specifically, the moving block 22 is provided with a step 221 on the side facing the secondary mold 12. The secondary mold 12 is placed on the step 221 and fixed by bolts. Different models of the secondary mold 12 can be replaced according to needs, thereby improving the adaptability of the glass mold.

[0032] The base 20 also includes a fixing seat 23 provided on the upper part of the bottom plate 21 for fixing the bottom mold 11, and a bottom bracket provided on the lower part of the bottom plate 21 and connected to the fixing seat 23 after passing through the bottom plate 21. During the demolding process of the glass product, the bottom mold 11 is moved upward by the upward external force of the bottom bracket, thereby completing the demolding process of the glass product.

[0033] The secondary mold 12 generates friction with the bottom mold 11 during the movement. Repeated friction will cause wear at the contact point between the secondary mold 12 and the bottom mold 11, and the gap between the secondary mold 12 and the bottom mold 11 will gradually become larger, thereby causing a gap between the secondary mold 12 and the bottom mold 11 and posing a risk of glass liquid leakage, thereby affecting the quality of the glass products.

[0034] The glass mold of the present application adopts a limiting assembly 30 to solve the above technical problems, such as Figures 1 to 5 As shown, the limiting assembly 30 includes a stop structure 32 connected to the end of the base plate 21 and a limiting structure 31 for limiting the secondary mold 12. The stop structure 32 is located on the radially outer side of the moving block 22 along the base plate. The stop structure 32 and the moving block 22 form a plug-in groove 33. The limiting structure 31 is inserted into the limiting groove 33 and abuts against the moving block 22 and the stop structure 32 respectively. By limiting the moving block 22, the secondary mold 12 is tightly fitted to the side of the bottom mold 11 to prevent a gap between the secondary mold 12 and the bottom mold 11.

[0035] The limiting structure 31 is in the shape of a long strip and is inserted into the insertion groove 33. Preferably, the limiting structure 31 can be detachably installed on the outside of the ring mold 134. After the glass mold completes the stamping, the limiting structure 31 is effectively inserted into the insertion groove 33 to fix the secondary mold 12 on the side of the bottom mold 11.

[0036] Preferably, if Figure 4As shown, the limiting structure 31 has a first contact surface 311 abutting against the moving block 22 and a second contact surface 312 abutting against the stop structure 32. Correspondingly, the moving block 22 is provided with a first guide surface 222 cooperating with the first contact surface 311. Preferably, the first contact surface 311 and the first guide surface 222 are both inclined outward and downward to improve the smoothness of the movement of the limiting structure 31.

[0037] In order to prevent the limiting structure 31 from loosening relative to the moving block, the base 20 also includes a friction plate 25 arranged between the limiting structure 31 and the moving block 22 to increase the friction between the first contact surface 311 and the first guide surface 222. The friction plate 25 is arranged on the first contact surface 311 and / or the first guide surface 222, and can achieve the purpose of increasing the friction between the first contact surface 311 and the first guide surface 222.

[0038] In this embodiment, the friction plate 25 is arranged on the first guide surface 222. Specifically, a mounting groove 223 for mounting the friction plate 25 is formed on the moving block 22. The depth of the mounting groove 223 is not greater than the thickness of the friction plate 25, that is, the surface of the friction plate 25 protrudes from the mounting groove 223 to facilitate abutment with the first contact surface 311. Preferably, the thickness of the friction plate 25 is 0.5mm-1mm greater than the depth of the mounting groove 223.

[0039] Preferably, the friction plate 25 is installed in the installation groove 223 by means of bolts, so that a new friction plate 25 can be easily replaced after the surface of the friction plate 25 is worn.

[0040] As another preferred embodiment of the present application, Figures 2 to 5 As shown, the limiting structure 31 includes a limiting body 313 and an auxiliary limiting block 314 detachably mounted on the limiting body 313 on a side close to the moving block. The first contact surface 311 is formed on the auxiliary limiting block 314. In the embodiment where the friction plate 25 is provided on the first contact surface 311, the mounting groove 223 for mounting the friction plate 25 is provided on the auxiliary limiting block 314.

[0041] In this embodiment, the auxiliary limiting block 314 is mounted on the limiting body 313 by means of bolts. When the first contact surface 311 is worn, it is convenient to replace the auxiliary limiting block 314 with a new one.

[0042] The stop structure 32 is vertically mounted on the edge of the bottom plate 21 and extends in the same direction as the bottom mold 11 , that is, the stop structure 32 and the mold body 10 are located on the same side of the bottom plate 21 .

[0043] like Figure 4As shown, the stop structure 32 abuts against the second contact surface 312. Correspondingly, the stop structure 32 has a second guide surface 321 abutting against the limiting structure 31. The second guide surface 321 and the second contact surface 312 are both tilted inward and downward. On the one hand, it is convenient to cooperate with the stop structure 32, and on the other hand, it can also improve the smoothness of the movement of the limiting structure 31.

[0044] As another preferred embodiment of the present application, the stop structure 32 includes a stop plate 322 mounted on the base plate 21, a guide block 323 detachably mounted on the stop plate 322, and the second guide surface 321 is formed on the guide block 323. Preferably, the guide block 323 is mounted to the upper end of the stop plate 322 by bolts, so that the guide block 323 can be easily replaced if the second guide surface 321 is worn.

[0045] In this embodiment, the guide block 323 is an isosceles trapezoid, and the second guide surface 321 is the waist surface of the guide block 323. The isosceles trapezoidal guide block 323 has two second guide surfaces 321. When one of the second guide surfaces 321 is worn, the installation direction of the guide block 323 can be swapped, and the other second guide surface 32 can continue to be used to improve the service life of the guide block 323.

[0046] As another preferred embodiment of the present application, Figures 1 to 5 As shown, the glass mold also includes a driving assembly 40 for driving the moving block 22 to slide relative to the base plate 21. The driving assembly 40 includes a driving device and a fork 41 connected to the driving device. The fork 41 is connected to the moving block 22 to drive the moving block 22 to slide relative to the base plate 21. The setting of the fork 41 can accurately control the moving speed of the moving block 22, wherein the bottom of the moving block 22 is provided with a receiving groove 225 for accommodating the fork 41.

[0047] Specifically, the shift fork 41 is provided with a pair, the base plate 21 is provided with a pair of shift fork grooves 211 penetrating along its thickness direction for the shift fork 41 to pass through, and an intermediate beam 212 between the shift fork grooves 211. The driving device 40 is provided at the lower part of the intermediate beam 212. One of the moving block 22 and the intermediate beam 212 is provided with a guide rail 42, and the other is provided with a guide rail groove 224 cooperating with the guide rail 42, which is conducive to accurately controlling the moving route of the moving block 22.

[0048] In this embodiment, Figure 6As shown, the guide rail 42 is arranged on the middle beam 212, and the base plate 21 also includes an avoidance space 213 arranged on the middle beam 212 for installing the guide rail 42, and the bottom surface of the moving block 22 is provided with a guide rail groove 224 that cooperates with the guide rail 42.

[0049] In this embodiment, in order to prevent the moving block 22 from interfering with the bottom plate 21 during the movement, Figure 5 As shown, the moving block 22 includes a main body 226 and a transition block 227 plugged and fixed to the main body 226. The guide rail groove 224 is provided on the transition block 227 so that there is a distance between the main body 226 and the base plate 21 to avoid interference with the base plate 21.

[0050] Of course, the guide rail 42 is provided on the moving block 22 , and the guide rail groove 224 is provided on the middle beam 212 , which can also achieve the purpose of the moving block 22 being driven by the shift fork 41 to move relative to the bottom plate 21 .

[0051] To sum up, the glass mold of the present application limits the secondary mold 12 to the side of the bottom mold 11 through the mold main body 10, the base 20 for fixing the mold main body 10, and the limiting assembly 30 provided between the mold main body 10 and the base 20, so that the secondary mold 12 will not pop outward, thereby avoiding the phenomenon of glass material leakage due to excessive gap between the bottom mold 11 and the secondary mold 12, thereby improving the quality of the glass product.

[0052] It should be understood that although this specification is described according to embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0053] The series of detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present application and are not intended to limit the scope of protection of the present application. Any equivalent embodiments or changes that do not deviate from the technical spirit of the present application should be included in the scope of protection of the present application.

Claims

1. A glass mold, characterized in that: The glass mold comprises: The mold body includes a bottom mold having a cavity and sub-molds provided on both sides of the bottom mold, wherein the side of the sub-mold facing the bottom mold is connected to the cavity to form a mold cavity for containing glass liquid; A base, the base comprising a bottom plate for fixing the bottom mold, a moving block slidably connected to the bottom plate, the moving block being connected to the secondary mold for carrying the secondary mold to move closer to or away from the bottom mold; The limiting assembly includes a stop structure connected to the end of the base plate and a limit structure for limiting the secondary mold. The stop structure is located on the radial outside of the moving block along the base plate. The stop structure and the moving block form a plug-in groove. The limiting structure is inserted into the limit groove and abuts against the moving block and the stop structure respectively.

2. The glass mold according to claim 1, wherein The limiting structure has a first contact surface abutting against the moving block, and the moving block is provided with a first guide surface matching the first contact surface. Both the first contact surface and the first guide surface are arranged to be inclined outward and downward.

3. The glass mold according to claim 2, wherein The base further includes a friction plate provided between the limiting structure and the moving block, and the friction plate is provided on the first contact surface and / or the first guide surface.

4. The glass mold according to claim 3, wherein The moving block is formed with a mounting groove for mounting the friction plate, and the depth of the mounting groove is no greater than the thickness of the friction plate.

5. The glass mold according to claim 2, wherein The limiting structure includes a limiting body and an auxiliary limiting block detachably mounted on a side of the limiting body close to the moving block, and the first contact surface is formed on the auxiliary limiting block.

6. The glass mold according to claim 1, wherein The limiting structure has a second contact surface abutting against the stopping structure, and the stopping structure includes a second guide surface matched with the second contact surface, and both the second guide surface and the second contact surface are arranged to be inclined inwardly and downwardly.

7. The glass mold according to claim 6, wherein The stop structure includes a stop plate mounted on the bottom plate, and a guide block detachably mounted on the stop plate. The second guide surface is formed on the guide block, and the guide block is in an isosceles trapezoidal shape.

8. The glass mold according to claim 1, wherein The mold body also includes a ring mold installed on the upper end of the bottom mold, and the limiting structure is detachably installed on the outer side of the ring mold.

9. The glass mold according to any one of claims 1 to 8, wherein It also includes a driving assembly for driving the moving block to slide relative to the base plate, the driving assembly includes a driving device and a shift fork connected to the driving device, and the shift fork is connected to the moving block to drive the moving block to slide relative to the base plate.

10. The glass mold according to claim 9, wherein The shift fork is provided with a pair, the bottom plate is provided with a pair of shift fork sliding grooves penetrating along the thickness direction for the shift fork to pass through, and an intermediate beam between the shift fork sliding grooves. The driving device is provided at the lower part of the intermediate beam. One of the moving block and the intermediate beam is provided with a guide rail, and the other is provided with a guide rail groove matching the guide rail.

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