A mold with a pneumatic punch forming

Abstract

The present application relates to the technical field of mold structure, and specifically discloses a mold with pneumatic punch forming, which comprises a first mold, a plurality of first mold grooves formed in the first mold, a second mold matched with the first mold, a plurality of second mold grooves formed in the second mold, and a plurality of hole openers arranged on the side of the second mold away from the second mold grooves; one of the hole openers is arranged close to one of the second mold grooves, and one of the first mold grooves and one of the second mold grooves are combined to form a mold cavity; the second mold is provided with a plurality of through holes, one of the through holes is communicated with one of the second mold grooves, and one of the hole openers is arranged at one of the through holes; the hole opener comprises a sleeve arranged at the through hole, a top rod slidingly arranged in the sleeve, an elastic assembly connected with the top rod, and a gas supply device communicated with the end of the sleeve away from the top rod. The mold with pneumatic punch forming can directly form holes on the glass product during the preparation process, and drilling is not needed in the later stage.

Description

Technical Field

[0001] This invention relates to the technical field of mold structure, and more specifically, to a mold with pneumatic stamping forming capability. Background Technology

[0002] With the continued rise in market demand for high-end customized wines and specialty beverages, glass wine bottles with irregular structures such as side holes, hollowed-out designs, and high-position holes have become a core direction for enhancing product added value due to their high visual recognition and ability to be personalized.

[0003] Currently, the industry commonly uses cold drilling for bottle perforation, which involves performing a second perforation operation manually or mechanically after the glass bottle has cooled and solidified. This process leaves the glass in a hard, brittle state at room temperature, making it prone to defects such as chipping and micro-cracks during drilling. Even with secondary welding repairs, the yield rate is low. Furthermore, the secondary processing steps are cumbersome, resulting in high labor and energy costs and long production cycles, making it unsuitable for the large-scale production capacity of existing bottle-making machines. It also makes it difficult to achieve stable mass production of high-position holes, symmetrical holes, and irregularly shaped holes.

[0004] Existing glass forming molds only have basic bottle forming functions and lack built-in perforation actuators. External perforation equipment cannot reach into the high-temperature mold cavity for operation. Ordinary mechanical stamping structures have poor high-temperature resistance, are prone to deformation and jamming under high-temperature environments, and also pose a risk of glass leakage, making them unsuitable for the high-temperature conditions of thermoforming. In addition, the existing bottle-making machine's air circuit can only provide low-pressure blowing gas, and the pressure and response speed cannot meet the high-pressure synchronization requirements of pneumatic perforation. During multi-station operation, the air pressure fluctuates greatly, and the lack of pressure stabilization, filtration, and under-pressure protection devices can easily lead to inconsistent perforation results and component damage, severely restricting the mass production and promotion of high-end irregular-shaped glass packaging products. Summary of the Invention

[0005] The purpose of this invention is to provide a mold with pneumatic stamping forming, which can directly form holes on glass products during the manufacturing process without the need for subsequent drilling.

[0006] The present invention is achieved through the following technical solution: The mold for pneumatic stamping of the present invention includes a first mold, a plurality of first mold slots formed on the first mold, a second mold that cooperates with the first mold, a plurality of second mold slots formed on the second mold, and a plurality of opening devices disposed on the side of the second mold away from the second mold slots; one of the opening devices is disposed close to one of the second mold slots, and one of the first mold slots and one of the second mold slots are combined to form a mold cavity; the second mold has a plurality of through holes, one of the through holes communicates with one of the second mold slots, and one of the opening devices is disposed at one of the through holes; the opening device includes a sleeve disposed at the through hole, a push rod slidably disposed in the sleeve, an elastic component connected to the push rod, and an air supply device communicating with the end of the sleeve away from the push rod.

[0007] Furthermore, a first chamber is provided at the end of the sleeve away from the second mold, and a second chamber is provided at the end of the sleeve close to the second mold; the diameter of the first chamber is larger than that of the second chamber, the first chamber and the second chamber are connected, the push rod is provided in both the first chamber and the second chamber, and a push plate is provided at the end of the push rod in the first chamber; the push plate is slidably connected to the inner wall of the first chamber, and the air supply device is connected to the end of the first chamber away from the second chamber.

[0008] Furthermore, the elastic component includes a spring disposed in the first chamber near the gas supply device, one end of the spring being fixedly connected to the push plate and the other end being fixedly connected to the inner wall of the first chamber.

[0009] Furthermore, when the spring does not deform, the push plate is located in the middle of the first chamber.

[0010] Furthermore, the push rod includes a first section fixedly connected to the push plate and a second section connected to the first section; the first section and the second section are coaxially arranged, the first section has a constant diameter structure, and the first section is slidably disposed in the second chamber; the second section has a variable diameter structure, and the diameter of the end of the second section closer to the first section is larger than the diameter of the other end.

[0011] Furthermore, when the push plate is attached to the inner wall of the first chamber near the second chamber, the end of the first segment is on the same plane as the inner wall of the second mold groove.

[0012] Furthermore, an air guide channel is provided axially inside the push rod, a first air inlet is provided on the first section of the side wall, a second air inlet is provided on the second chamber side wall, an air inlet pipe is provided at the second air inlet, the air inlet pipe is connected to an air source, and an exhaust hole is provided on the second section of the side wall; both the first air inlet and the exhaust hole are connected to the air guide channel; when the push plate is attached to the inner wall of the first chamber near the second chamber, the first air inlet and the second air inlet coincide.

[0013] Furthermore, the exhaust holes are provided in multiple manner, and the multiple exhaust holes are distributed along the circumferential direction of the second segment.

[0014] Furthermore, the vent is positioned facing the second mold groove.

[0015] Furthermore, the gas supply device includes a gas guide pipe communicating with the first chamber; the gas guide pipe is connected to a gas source.

[0016] The technical solution of this invention has at least the following advantages and beneficial effects: The pneumatic stamping mold of this invention, in use, places a soft glass blank in a first mold groove. After the second mold is closed with the first mold, a hole is made in the side wall of the glass blank using a hole opener. Then, air is introduced into the glass blank, causing it to expand and fully conform to the inner walls of the first and second mold grooves, thus forming a preset shape. During this process, when making the hole with the hole opener, gas can be directly introduced into the sleeve using a gas supply device. The gas pushes the ejector rod to move and penetrate the soft glass blank, thereby forming a through hole in the glass blank. After the glass blank solidifies, a permanent hole is formed. In this way, holes of corresponding shape, size, and number can be directly formed on the glass during the glass product manufacturing process, eliminating the need for re-drilling after the glass has solidified. Furthermore, various non-circular irregular holes can be formed. This reduces production steps, improves production efficiency, and also reduces defective and waste products caused during glass drilling. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a mold with pneumatic stamping provided in an embodiment of the present invention; Figure 2 for Figure 1 Another structural diagram from another perspective; Figure 3 This is a schematic diagram of the structure after mold closing; Figure 4 A schematic diagram of the internal structure of the hole opener in one state; Figure 5 This is a schematic diagram of the two-state structure inside the hole opener; Figure 6 This is a structural diagram of the push rod section.

[0018] Icons: 11-First mold, 12-First mold groove, 13-Second mold, 14-Second mold groove, 15-Through hole, 20-Hole opener, 21-Sleeve, 22-Ejector rod, 221-First section, 222-Second section, 223-Air guide channel, 224-First air inlet, 225-Exhaust hole, 23-Spring, 24-First chamber, 25-Second chamber, 26-Push plate, 27-Second air inlet, 28-Air inlet pipe, 29-Air guide pipe. 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 6 As shown, the mold with pneumatic stamping in this embodiment includes a first mold 11, a plurality of first mold slots 12 formed on the first mold 11, a second mold 13 that cooperates with the first mold 11, a plurality of second mold slots 14 formed on the second mold 13, and a plurality of hole openers 20 provided on the side of the second mold 13 away from the second mold slots 14; one hole opener 20 is provided close to one second mold slot 14, and one first mold slot 12 and one second mold slot 14 are combined to form a mold cavity; the second mold 13 has a plurality of through holes 15, one through hole 15 communicates with one second mold slot 14, and one hole opener 20 is provided at one through hole 15; the hole opener 20 includes a sleeve 21 provided at the through hole 15, a push rod 22 slidably provided in the sleeve 21, an elastic component connected to the push rod 22, and an air supply device communicating with the end of the sleeve 21 away from the push rod 22. Specifically, during use, a soft glass blank is placed in the first mold groove 12. After the second mold 13 is closed with the first mold 11, a hole is made in the side wall of the glass blank using a hole opener 20. Then, air is introduced into the glass blank, causing it to expand and fully conform to the inner walls of the first mold groove 12 and the second mold groove 14, thus forming the glass blank into a preset shape. During this process, when making the hole using the hole opener 20, gas can be directly introduced into the sleeve 21 using a gas supply device. The gas pushes the push rod 22 to move and penetrate the soft glass blank, thereby forming a through hole 15 in the glass blank. After the glass blank solidifies, a permanent hole is formed. In this way, holes of the corresponding shape, size, and number can be directly formed on the glass during the glass product manufacturing process, eliminating the need for re-drilling after the glass has solidified. Furthermore, various non-circular irregular holes can also be formed. This reduces production steps, improves production efficiency, and reduces defective and waste products caused during the glass drilling process.

[0020] In this embodiment, the sleeve 21 has a first chamber 24 at the end away from the second mold 13 and a second chamber 25 at the end of the sleeve 21 close to the second mold 13. The diameter of the first chamber 24 is larger than that of the second chamber 25. The first chamber 24 and the second chamber 25 are connected. The push rod 22 is simultaneously located in the first chamber 24 and the second chamber 25. The push rod 22 is located at the end of the first chamber 24 with a push plate 26. The push plate 26 is slidably connected to the inner wall of the first chamber 24. The air supply device is connected to the end of the first chamber 24 away from the second chamber 25. Specifically, the gas supply device delivers high-pressure gas into the first chamber 24, pushing the push plate 26 to move. The push plate 26 then pushes the top rod 22 to move. The purpose of setting up the first chamber 24 and the second chamber 25 is to ensure that the first chamber 24 has a larger volume, so the gas will not fill the first chamber 24 instantly (the second chamber 25 has a smaller volume, so the gas will fill the second chamber 25 instantly). This allows the movement speed of the push plate 26 and the top rod 22 to be controlled within a certain range, preventing the top rod 22 from moving too fast and damaging the glass blank.

[0021] The elastic component in this embodiment includes a spring 23 located in the first chamber 24 near the gas supply device. One end of the spring 23 is fixedly connected to the push plate 26, and the other end is fixedly connected to the inner wall of the first chamber 24. Specifically, after the hole is opened, the spring 23 can pull the push rod 22 back into the second chamber 25, and the push rod 22 is completely removed from the glass blank, which facilitates subsequent demolding.

[0022] In this embodiment, as shown in the appendix Figure 4 As shown, when the spring 23 does not deform, the push plate 26 is located in the middle of the first chamber 24. High-pressure gas can be introduced into the first chamber 24 using a gas supply device, and high-pressure liquid can also be introduced. The difference is that high-pressure gas is discharged and depressurized faster, while the pressure of high-pressure liquid is more linear and stable.

[0023] In this embodiment, the push rod 22 includes a first segment 221 fixedly connected to the push plate 26, and a second segment 222 connected to the first segment 221. The first segment 221 and the second segment 222 are coaxially arranged. The first segment 221 has a constant diameter structure and is slidably and sealed within the second chamber 25. The second segment 222 has a variable diameter structure, with the diameter of one end of the second segment 222 closer to the first segment 221 being larger than the diameter of the other end. Specifically, the tapered structure of the second segment 222 allows for better penetration of the glass blank, while the first segment 221 can seal the second chamber 25, preventing glass from entering the gap between the second chamber 25 and the push rod 22, and ensuring the stability and linearity of the push rod 22's movement.

[0024] In this embodiment, when the push plate 26 is attached to the inner wall of the first chamber 24 near the second chamber 25, the end of the first segment 221 is in the same plane as the inner wall of the second mold groove 14.

[0025] In this embodiment, an air guide channel 223 is provided axially inside the push rod 22. A first air inlet 224 is provided on the side wall of the first section 221, and a second air inlet 27 is provided on the side wall of the second chamber 25. An air inlet pipe 28 is provided at the second air inlet 27 and connected to an air source. An exhaust hole 225 is provided on the side wall of the second section 222. Both the first air inlet 224 and the exhaust hole 225 are connected to the air guide channel 223. When the push plate 26 is attached to the inner wall of the first chamber 24 near the second chamber 25, the first air inlet 224 and the second air inlet 27 coincide. Multiple exhaust holes 225 are provided and distributed along the circumference of the second section 222. The exhaust holes 225 are oriented towards the second mold groove 14. Specifically, see attached... Figure 5 As shown, when the second section 222 of the ejector pin 22 completely penetrates the glass blank, the first air inlet 224 on the first section 221 is connected to the second air inlet 27 on the side wall of the second chamber 25. At this time, the gas source sends gas into the air guide channel 223 through the second air inlet 27 and the first air inlet 224, and finally discharges from the exhaust port 225. The discharged gas first blows onto the glass blank around the second section 222, allowing the part around the opening of the glass blank to cool and solidify quickly, so that the ejector pin 22 can be smoothly withdrawn. Furthermore, since the second section 222 has a conical structure, the solidified glass blank will not exert any clamping force or obstruction on the second section 222. After the second section 222 is removed from the second mold groove 14, the first air inlet 224 and the second air inlet 27 are misaligned, so there will be no more flowing gas in the air guide channel 223.

[0026] The gas supply device in this embodiment includes a gas guide pipe 29 that communicates with the first chamber 24; the gas guide pipe 29 is connected to a gas source.

[0027] In summary, the pneumatic stamping mold of this embodiment involves placing a soft glass blank in the first mold groove 12, closing the second mold 13 with the first mold 11, and then using a hole opener 20 to create a hole in the side wall of the glass blank. Air is then introduced into the glass blank, causing it to expand and fully conform to the inner walls of the first and second mold grooves 12 and 14, thus forming a predetermined shape. During this process, when using the hole opener 20, gas can be directly introduced into the sleeve 21 using a gas supply device. The gas pushes the ejector rod 22 to move and penetrate the soft glass blank, thereby forming a through hole 15. Once the glass blank solidifies, a permanent hole is formed. This allows for the direct formation of holes of the appropriate shape, size, and number during the glass product manufacturing process, eliminating the need for re-drilling after glass solidification. Furthermore, it can form various non-circular irregular holes. This reduces production steps, improves production efficiency, and reduces defective and waste products generated during glass drilling.

[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 mold for pneumatic stamping, characterized in that: The mold includes a first mold (11), a plurality of first mold slots (12) formed on the first mold (11), a second mold (13) that cooperates with the first mold (11), a plurality of second mold slots (14) formed on the second mold (13), and a plurality of opening devices (20) disposed on the side of the second mold (13) away from the second mold slots (14); one of the opening devices (20) is disposed close to one of the second mold slots (14), and one of the first mold slots (12) and one of the second mold slots (14) are combined to form a mold cavity; The second mold (13) has multiple through holes (15), one of the through holes (15) is connected to one of the second mold grooves (14), and one of the hole openers (20) is located at one of the through holes (15); The hole opener (20) includes a sleeve (21) disposed at the through hole (15), a push rod (22) slidably disposed in the sleeve (21), an elastic component connected to the push rod (22), and an air supply device communicating with the end of the sleeve (21) away from the push rod (22).

2. The mold with pneumatic stamping forming according to claim 1, characterized in that: The sleeve (21) has a first chamber (24) at the end away from the second mold (13) and a second chamber (25) at the end of the sleeve (21) close to the second mold (13). The diameter of the first chamber (24) is larger than that of the second chamber (25). The first chamber (24) and the second chamber (25) are connected. The push rod (22) is simultaneously provided in the first chamber (24) and the second chamber (25). The push rod (22) is provided with a push plate (26) at one end of the first chamber (24). The push plate (26) is slidably connected to the inner wall of the first chamber (24), and the air supply device is connected to the end of the first chamber (24) away from the second chamber (25).

3. The mold with pneumatic stamping forming according to claim 2, characterized in that: The elastic component includes a spring (23) disposed in the first chamber (24) near the gas supply device. One end of the spring (23) is fixedly connected to the push plate (26), and the other end is fixedly connected to the inner wall of the first chamber (24).

4. The mold with pneumatic stamping forming according to claim 3, characterized in that: When the spring (23) does not deform, the push plate (26) is located in the middle of the first chamber (24).

5. The mold with pneumatic stamping forming according to claim 2, characterized in that: The push rod (22) includes a first section (221) fixedly connected to the push plate (26), and a second section (222) connected to the first section (221); The first segment (221) and the second segment (222) are coaxially arranged. The first segment (221) is a constant diameter structure and is sealed and slidably disposed in the second chamber (25). The second segment (222) is a variable diameter structure, and the diameter of the end of the second segment (222) closer to the first segment (221) is larger than the diameter of the other end.

6. The mold with pneumatic stamping forming according to claim 5, characterized in that: When the push plate (26) is attached to the inner wall of the first chamber (24) near the second chamber (25), the end of the first segment (221) is in the same plane as the inner wall of the second mold groove (14).

7. The mold with pneumatic stamping forming according to claim 5, characterized in that: An air guide channel (223) is provided in the axial direction inside the top rod (22), a first air inlet (224) is provided on the side wall of the first section (221), a second air inlet (27) is provided on the side wall of the second chamber (25), an air inlet pipe (28) is provided at the second air inlet (27), the air inlet pipe (28) is connected to an air source, and an exhaust hole (225) is provided on the side wall of the second section (222). The first air inlet (224) and the exhaust outlet (225) are both connected to the air guide channel (223); When the push plate (26) is attached to the inner wall of the first chamber (24) near the second chamber (25), the first air inlet (224) coincides with the second air inlet (27).

8. The mold with pneumatic stamping forming according to claim 7, characterized in that: The exhaust holes (225) are provided in multiple ways, and the multiple exhaust holes (225) are distributed along the circumferential direction of the second segment (222).

9. The mold with pneumatic stamping forming according to claim 8, characterized in that: The vent (225) is positioned facing the second mold groove (14).

10. The mold with pneumatic stamping forming according to claim 2, characterized in that: The gas supply device includes a gas pipe (29) communicating with the first chamber (24); the gas pipe (29) is connected to a gas source.

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