Self-adjusting glass article hot piercing die

Abstract

The present application relates to the technical field of glass product processing, and discloses a self-forming glass product hot perforation die, which comprises a bottom plate arranged horizontally, a pair of die assemblies symmetrically arranged on the bottom plate, a die plate, die grooves arranged on mutually close sides of the die plate, through holes arranged on the die plate, a power assembly for driving the pair of die plates to move relative to each other, and a perforation assembly arranged on a side of the die plate away from the die grooves; the perforation assembly comprises a sleeve horizontally arranged at the through hole, a sleeve sleeve slidingly arranged in the sleeve, a first driving device for driving the sleeve to move along its axial direction, a jack slidingly arranged in the sleeve, and a second driving device for driving the jack to move along its axial direction; the diameter of the through hole is the same as the inner diameter of the sleeve. The self-forming glass product hot perforation die can efficiently perform hot perforation on a glass product and shape the perforation.

Description

Technical Field

[0001] This invention relates to the technical field of glass product processing, and more specifically, to a self-aligning hot perforation mold for glass products. Background Technology

[0002] With the rapid expansion of the high-end wine and customized beverage market, glass wine bottles with irregular structures such as side holes and hollowed-out designs have become the mainstream packaging direction for enhancing product added value due to their unique appearance and high recognizability. The market's requirements for perforation precision, hole strength, and production efficiency continue to increase.

[0003] Traditional cold drilling processes require secondary processing after the bottle has cooled, which can easily cause defects such as chipped edges and micro-cracks at the hole opening. In addition, the process is complicated, energy and labor costs are high, and the production cycle is long. It cannot match the automated and large-scale production capacity of bottle making, and it is also difficult to complete the standardized batch processing of complex hole types such as symmetrical holes and high-position holes.

[0004] While current thermoforming simultaneous piercing technology can avoid some of the defects of cold working, it still has many shortcomings in practical applications. The accuracy of hole positions relies excessively on the precision of mold processing and assembly. Under high-temperature conditions, thermal expansion and contraction of the mold and long-term wear of guide components can easily lead to hole position misalignment and uneven wall thickness, making it difficult to guarantee the consistency of finished products. The holes formed by hot piercing have sharp shear edges and residual stress, making the bottles prone to cracking at the holes during subsequent filling and transportation, resulting in a low product yield. Summary of the Invention

[0005] The purpose of this invention is to provide a self-shaping hot piercing mold for glass products, which can efficiently perform hot piercing on glass products and shape the piercing.

[0006] This invention is achieved through the following technical solution: The self-aligning hot perforation mold for glass products of this invention includes a horizontally arranged base plate and a pair of mold assemblies symmetrically arranged on the base plate; the mold assembly includes a mold plate, a mold groove formed on one side of the mold plate that is close to each other, a through hole formed on the mold plate, a power assembly for driving the pair of mold plates to move relative to each other, and a perforation assembly arranged on the side of the mold plate away from the mold groove; the perforation assembly includes a sleeve horizontally arranged at the through hole, a sleeve slidably arranged in the sleeve, a first driving device for driving the sleeve to move axially, a push rod slidably arranged in the sleeve, and a second driving device for driving the push rod to move axially; the diameter of the through hole is the same as the inner diameter of the sleeve.

[0007] Furthermore, the end of the sleeve away from the mold plate is a closed end; the first driving device includes an air guide pipe communicating with the closed end of the sleeve, and a compressed air source connected to the air guide pipe.

[0008] Furthermore, the first driving device also includes a sliding plate disposed at one end of the sleeve away from the mold plate, and a first spring for connecting the sliding plate to the closed end of the sleeve.

[0009] Furthermore, the through holes on the pair of mold plates are symmetrically arranged; the axial directions of the pair of sleeves coincide.

[0010] Furthermore, the second driving device includes a second spring disposed within the sleeve; one end of the second spring is fixedly connected to the slide plate, and the other end is fixedly connected to the end of the push rod.

[0011] Furthermore, the second driving device also includes a push rod that is slidably and sealed inside the top rod, a third spring that is fixedly connected to the end of the push rod away from the mold plate, and a driving rod that abuts against the end of the push rod away from the mold plate; the push rod is parallel to the top rod and penetrates the top rod, the push rod passes through the slide plate and is slidably and sealed to the slide plate, the third spring is sleeved on the outer wall of the push rod and fixedly connected to the slide plate; when the end of the sleeve is on the same plane as the inner wall of the mold groove, the ends of the pair of top rods abut against each other.

[0012] Furthermore, the axial directions of the pair of push rods in the pair of perforated assemblies do not coincide.

[0013] Furthermore, the drive rod passes through the end of the sleeve; the second drive device also includes an electric push cylinder fixed to the outer wall of the mold plate, and a connecting plate for connecting the movable end of the electric push cylinder to the end of the drive rod; the axial direction of the electric push cylinder is parallel to the axial direction of the sleeve.

[0014] Furthermore, the outer wall of the push rod is provided with a plurality of annular protrusions at one end near the mold plate; the plurality of protrusions are distributed along the length direction of the push rod.

[0015] Furthermore, the power assembly includes a horizontally arranged telescopic cylinder, a support block fixedly mounted on the base plate, and a limiting rod slidably connected to the support block; the axial direction of the telescopic cylinder is parallel to the axial direction of the limiting rod, the movable end of the telescopic cylinder is fixedly connected to the mold plate, and one end of the limiting rod is fixedly connected to the mold plate.

[0016] The technical solution of the present invention has at least the following advantages and beneficial effects: In the use of the self-aligning hot piercing mold for glass products, a high-temperature soft glass blank is placed into the mold groove of a pair of mold plates. A power component drives the pair of mold plates to approach each other and close the mold. After closing the mold, gas is introduced into the glass blank to cause it to expand. The glass blank gradually adheres to the inner wall of the mold groove. Then, a piercing component is used to pierce the side wall of the glass blank. Before piercing, the end of the ejector rod is in the through hole. During piercing, the first driving device drives the sleeve and ejector rod to move synchronously. The ejector rod penetrates the glass blank, and the sleeve moves to the end flush with the inner wall of the mold groove. Before the glass blank is semi-cured, the second driving device drives the ejector rod to retract to a certain extent (i.e., the ejector rod retracts into the sleeve). During the retraction process, the ejector rod will bring part of the glass at the piercing point back to the piercing point (solving a problem similar to burrs), making the perimeter of the piercing more rounded and the thickness more uniform, achieving the purpose of shaping the piercing. This effectively eliminates stress problems at the piercing point and effectively avoids cracking problems at the piercing point later. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a self-aligning hot-piercing mold for glass products provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the internal structure of a perforated assembly in one state. Figure 3 This is a schematic diagram of the two-state structure inside the perforated assembly; Figure 4 This is a schematic diagram of the three states inside the perforated assembly; Figure 5 A structural schematic diagram of the sleeve section from one perspective; Figure 6 This is a two-view structural schematic diagram of the sleeve section; Figure 7 for Figure 3 Enlarged view of section A.

[0018] Icons: 10-Base plate, 20-Mold assembly, 21-Mold plate, 22-Mold groove, 23-Through hole, 24-Power assembly, 241-Telescopic cylinder, 242-Support block, 243-Limit rod, 30-Perforation assembly, 31-Sleeve, 32-Sleeve, 33-First drive device, 331-Air guide pipe, 332-Slide plate, 333-First spring, 34-Push rod, 341-Protrusion strip, 35-Second drive device, 351-Second spring, 352-Push rod, 353-Third spring, 354-Drive rod, 355-Electric push cylinder, 356-Connecting plate. Detailed Implementation

[0019] Example The following description, in conjunction with specific embodiments, further illustrates the point, as shown in the appendix. Figure 1 - Appendix Figure 7 As shown, the self-aligning hot perforation mold for glass products in this embodiment includes a horizontally arranged base plate 10 and a pair of mold assemblies 20 symmetrically arranged on the base plate 10. The mold assembly 20 includes a mold plate 21, a mold groove 22 formed on one side of the mold plate 21 that is close to each other, a through hole 23 formed on the mold plate 21, a power assembly 24 for driving the pair of mold plates 21 to move relative to each other, and a perforation assembly 30 arranged on the side of the mold plate 21 away from the mold groove 22. The perforation assembly 30 includes a sleeve 31 horizontally arranged at the through hole 23, a sleeve 32 slidably arranged in the sleeve 31, a first driving device 33 for driving the sleeve 32 to move along its axial direction, a push rod 34 slidably arranged in the sleeve 32, and a second driving device 35 for driving the push rod 34 to move along its axial direction. The diameter of the through hole 23 is the same as the inner diameter of the sleeve 31. Specifically, during use, a high-temperature, soft glass blank is placed into the mold groove 22 of a pair of mold plates 21. A power assembly 24 drives the pair of mold plates 21 to approach each other and close the mold. After closing, gas is introduced into the glass blank to cause it to expand, and the glass blank gradually adheres to the inner wall of the mold groove 22. Then, a perforation assembly 30 is used to perforate the side wall of the glass blank. Before perforation, the end of the ejector rod 34 is positioned in the through hole 23 (as shown in the attached diagram). Figure 2 As shown in the attached diagram), during piercing, the first driving device 33 drives the sleeve 32 and the ejector rod 34 to move synchronously. The ejector rod 34 penetrates the glass blank, and the sleeve 32 moves to its end flush with the inner wall of the mold groove 22 (as shown in the attached diagram). Figure 3 As shown, before the glass blank is semi-cured, the second driving device 35 drives the push rod 34 to retract to a certain extent (i.e., the push rod 34 retracts into the sleeve 32). During the retraction process, the push rod 34 will drive part of the glass at the perforation of the glass blank back to the perforation (solving a problem similar to burrs), making the area around the perforation more rounded and the thickness more uniform, achieving the purpose of shaping the perforation, effectively eliminating the stress problem at the perforation, and effectively avoiding the problem of cracking at the perforation in the later stage.

[0020] In this embodiment, the end of the sleeve 31 furthest from the mold plate 21 is a closed end. The first driving device 33 includes a vent pipe 331 communicating with the closed end of the sleeve 31, and a compressed air source connected to the vent pipe 331. The first driving device 33 also includes a sliding plate 332 located at the end of the sleeve 31 furthest from the mold plate 21, and a first spring 333 for connecting the sliding plate 332 and the closed end of the sleeve 31. Specifically, the compressed air source sends high-pressure gas into the sleeve 31 through the vent pipe 331, so that the inside of the sleeve 31 is in a high-pressure state, thereby pushing the sliding plate 332, the sleeve 32, and the push rod 34 to move and pass through the glass blank. Alternatively, a driving device with a telescopic rod can be used to directly push the sliding plate 332 and the sleeve 32 to move, or the compressed air source can be replaced with a liquid pump to push the sliding plate 332 to move through the liquid. However, the action of compressed gas is faster, and the gas degassing is faster, so the sliding plate 332, the sleeve 32, and the push rod 34 can also return to their original positions more quickly.

[0021] In this embodiment, the through holes 23 on a pair of mold plates 21 are symmetrically arranged; the axial directions of a pair of sleeves 31 coincide.

[0022] The second driving device 35 in this embodiment includes a second spring 351 disposed inside the sleeve 32; one end of the second spring 351 is fixedly connected to the slide plate 332, and the other end is fixedly connected to the end of the push rod 34. The second driving device 35 also includes a push rod 352 that is slidably disposed inside the push rod 34, a third spring 353 that is fixedly connected to the end of the push rod 352 away from the mold plate 21, and a driving rod 354 that abuts against the end of the push rod 352 away from the mold plate 21; the push rod 352 is parallel to the push rod 34 and penetrates the push rod 34, the push rod 352 passes through the slide plate 332 and is slidably connected to the slide plate 332, and the third spring 353 is sleeved on the outer wall of the push rod 352 and fixedly connected to the slide plate 332; when the end of the sleeve 32 is on the same plane as the inner wall of the mold groove 22, the ends of the pair of push rods 34 abut against each other. Specifically, when the sleeve 32 moves under the action of the second spring 351, the second spring 351 can push the push rod 34 to move, piercing the glass blank. After the push rod 34 completely penetrates the glass blank, the ends of the pair of push rods 34 abut against each other. At this time, the second driving device 35 can be used to drive the push rod 34 to move independently, and the driving rod 354 can be used to push the push rod 352 to move, so that after the push rod 352 passes through the end of the push rod 34, it pushes the other push rod 34 to retract, thus achieving the purpose of controllable retraction of the push rod 34 (as shown in the attached figure). Figure 4 As shown), the function of the third spring 353 is to push the push rod 352 back into the top rod 34 when the push rod 352 is not acted upon by the drive rod 354.

[0023] In this embodiment, the axial directions of the pair of push rods 352 in the pair of perforated assemblies 30 do not coincide. Specifically, since the push rods 352 in the two perforated assemblies 30 push the push rod 34 against each other, the two push rods 352 cannot coincide; otherwise, if the two push rods 352 come into contact, they will no longer be able to push the push rod 34 to move.

[0024] In this embodiment, the drive rod 354 passes through the end of the sleeve 31; the second drive device 35 also includes an electric push cylinder 355 fixedly mounted on the outer wall of the mold plate 21, and a connecting plate 356 for connecting the movable end of the electric push cylinder 355 to the end of the drive rod 354; the axial direction of the electric push cylinder 355 is parallel to the axial direction of the sleeve 31. Specifically, the electric push cylinder 355 and the connecting plate 356 can drive the drive rod 354 to move, thereby pushing the push rod 352. The electric push cylinder 355 can also be replaced by a pneumatic push cylinder.

[0025] In this embodiment, the outer wall of the push rod 34 near the mold plate 21 is provided with multiple annular protrusions 341; the multiple protrusions 341 are distributed along the length direction of the push rod 34. Specifically, the purpose of providing the protrusions 341 is to increase the friction of the outer wall of the push rod 34, so that the push rod 34 can better drive the glass blank to retract.

[0026] The power assembly 24 in this embodiment includes a horizontally arranged telescopic cylinder 241, a support block 242 fixedly mounted on the base plate 10, and a limiting rod 243 slidably connected to the support block 242; the axial direction of the telescopic cylinder 241 is parallel to the axial direction of the limiting rod 243, the movable end of the telescopic cylinder 241 is fixedly connected to the mold plate 21, and one end of the limiting rod 243 is fixedly connected to the mold plate 21.

[0027] In summary, the self-aligning hot piercing mold for glass products of this embodiment involves placing a high-temperature, soft glass blank into the mold groove 22 of a pair of mold plates 21. A power assembly 24 drives the pair of mold plates 21 to approach each other and close the mold. After closing, gas is introduced into the glass blank to cause it to expand, gradually adhering to the inner wall of the mold groove 22. Then, the piercing assembly 30 performs a piercing operation on the side wall of the glass blank. Before piercing, the end of the ejector rod 34 is in the through hole 23. During piercing, the first driving device 33 drives the sleeve 32 and the ejector rod 34 to move synchronously. Rod 34 penetrates the glass blank, and sleeve 32 moves to the end flush with the inner wall of mold groove 22. Before the glass blank is semi-cured, the second driving device 35 drives the push rod 34 to retract to a certain extent (i.e., the push rod 34 retracts into sleeve 32). During the retraction process, the push rod 34 will drive part of the glass at the perforation point of the glass blank back to the perforation point (solving a problem similar to burrs), making the area around the perforation point more rounded and the thickness more uniform, achieving the purpose of shaping the perforation point, effectively eliminating stress problems at the perforation point, and effectively avoiding cracking problems at the perforation point in the later stage.

[0028] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A self-aligning hot perforation mold for glass products, characterized in that: It includes a horizontally arranged base plate (10) and a pair of mold assemblies (20) symmetrically arranged on the base plate (10); The mold assembly (20) includes a mold plate (21), a mold groove (22) formed on one side of the mold plate (21) that is close to each other, a through hole (23) formed on the mold plate (21), a power assembly (24) for driving the pair of mold plates (21) to move relative to each other, and a perforation assembly (30) provided on the side of the mold plate (21) away from the mold groove (22); The perforation assembly (30) includes a sleeve (31) horizontally disposed at the through hole (23), a sleeve (32) slidably disposed in the sleeve (31), a first drive device (33) for driving the sleeve (32) to move along its axial direction, a push rod (34) slidably disposed in the sleeve (32), and a second drive device (35) for driving the push rod (34) to move along its axial direction. The diameter of the through hole (23) is the same as the inner diameter of the sleeve (31).

2. The self-aligning hot perforation mold for glass products according to claim 1, characterized in that: The end of the sleeve (31) away from the mold plate (21) is a closed end; The first driving device (33) includes an air guide pipe (331) communicating with the closed end of the sleeve (31) and a compressed air source connected to the air guide pipe (331).

3. The self-aligning hot perforation mold for glass products according to claim 2, characterized in that: The first driving device (33) further includes a sliding plate (332) disposed at one end of the sleeve (31) away from the mold plate (21), and a first spring (333) for connecting the sliding plate (332) and the closed end of the sleeve (31).

4. The self-aligning hot perforation mold for glass products according to claim 3, characterized in that: The through holes (23) on the pair of mold plates (21) are symmetrically arranged; the axial directions of the pair of sleeves (31) coincide.

5. The self-aligning hot perforation mold for glass products according to claim 4, characterized in that: The second drive device (35) includes a second spring (351) disposed within the sleeve (32); One end of the second spring (351) is fixedly connected to the slide plate (332), and the other end is fixedly connected to the end of the top rod (34).

6. The self-aligning hot perforation mold for glass products according to claim 5, characterized in that: The second drive device (35) further includes a push rod (352) that is slidably disposed inside the top rod (34), a third spring (353) that is fixedly connected to the end of the push rod (352) away from the mold plate (21), and a drive rod (354) that abuts against the end of the push rod (352) away from the mold plate (21). The push rod (352) is parallel to the top rod (34) and penetrates the top rod (34). The push rod (352) passes through the slide plate (332) and is slidably connected to the slide plate (332). The third spring (353) is sleeved on the outer wall of the push rod (352) and is fixedly connected to the slide plate (332). When the end of the sleeve (32) is in the same plane as the inner wall of the mold groove (22), the ends of the pair of push rods (34) abut against each other.

7. The self-aligning hot perforation mold for glass products according to claim 6, characterized in that: The axial directions of the pair of push rods (352) in the pair of perforated assemblies (30) do not coincide.

8. The self-aligning hot perforation mold for glass products according to claim 6, characterized in that: The drive rod (354) is disposed through the end of the sleeve (31); The second driving device (35) further includes an electric push cylinder (355) fixedly disposed on the outer wall of the mold plate (21), and a connecting plate (356) for connecting the movable end of the electric push cylinder (355) and the end of the driving rod (354); The axial direction of the electric push cylinder (355) is parallel to the axial direction of the sleeve (31).

9. The self-aligning hot perforation mold for glass products according to claim 1, characterized in that: The outer wall of the push rod (34) near the mold plate (21) is provided with a plurality of annular protrusions (341); the plurality of protrusions (341) are distributed along the length direction of the push rod (34).

10. The self-aligning hot perforation mold for glass products according to claim 1, characterized in that: The power assembly (24) includes a horizontally arranged telescopic cylinder (241), a support block (242) fixedly mounted on the base plate (10), and a limiting rod (243) slidably connected to the support block (242); The axial direction of the telescopic cylinder (241) is parallel to the axial direction of the limiting rod (243). The movable end of the telescopic cylinder (241) is fixedly connected to the mold plate (21), and one end of the limiting rod (243) is fixedly connected to the mold plate (21).

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