Double-layer energy-saving glass blowing forming equipment

Abstract

The invention discloses double-layer energy-saving glass blowing forming equipment, and belongs to the technical field of glass blowing forming, the double-layer energy-saving glass blowing forming equipment comprises forming equipment, a blowing assembly is mounted in the forming equipment, a rotating nozzle is mounted below the blowing assembly, and a forming device is mounted in the forming equipment. According to the invention, along with the release of heat in the working process of the mold body, the heat enters the cavity through air conduction and is conveyed into the heat preservation box through the heat absorption pipe, the temperature of gas in the heat preservation box is gradually increased, and after certain heat is reached, the gas is guided to the gas guide pipe through the exhaust pipe and finally conveyed into the heat preservation disc; the rotating nozzles located in the heat preservation disc absorb heat around the rotating nozzles in the rotating process, preheating of blowing gas in the rotating nozzles is achieved, waste heat generated by heat dissipation of the mold can be effectively recycled through the structure, the waste heat is used for heating the blowing gas, and therefore the shock cooling problem caused by direct blowing of cold air in the blowing process of high-temperature glass is solved, and the service life of the high-temperature glass is prolonged. The finished product quality and the forming stability are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of glass blowing and molding, and in particular relates to double-layer energy-saving glass blowing and molding equipment. Background Art

[0002] Double-layer glass is a hollow structure consisting of two layers of glass, one inside and one outside. It is commonly used in everyday items such as thermoses and glass bottles. The hollow interlayer effectively insulates against heat, preventing burns and condensation, while also enhancing aesthetics. Double-layer glass is typically produced using a blown molding process. Heat-softened glass is expanded by air and then molded. The shape and spacing of the inner and outer layers are precisely controlled, resulting in a lightweight, heat-resistant hollow structure.

[0003] In the existing technology, cold air direct inflation molding is usually used in the glass blowing process. However, this method can easily cause the glass surface to cool rapidly, which in turn causes stress concentration or molding defects, affecting the quality of the product. At the same time, since the high-temperature glass cannot effectively utilize its own heat during the blowing process, there is a problem of large-scale heat energy loss, resulting in energy waste and reduced overall production efficiency.

[0004] Based on this, the present invention designs a double-layer energy-saving glass blowing molding equipment to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem in the prior art that cold air direct inflation molding is usually adopted in the glass blowing process, but this method easily causes the glass surface to cool rapidly, thereby causing stress concentration or molding defects, affecting the quality of the product. At the same time, since the high-temperature glass cannot effectively utilize its own heat during the blowing process, a large amount of heat energy is lost, resulting in energy waste and reduced overall production efficiency. Therefore, a double-layer energy-saving glass blowing molding equipment is proposed.

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

[0007] A double-layer energy-saving glass blowing molding device comprises a molding device, a blowing assembly installed in the molding device, a rotating nozzle installed below the blowing assembly, a molding device installed in the molding device, a heat recovery device installed on the molding device, a heat preservation device installed on the heat recovery device, and a waste heat utilization device fixedly connected to the outside of the heat recovery device;

[0008] The molding device includes two shells, each of which has a cavity formed therein, and a mold body is installed on opposite surfaces of the two shells. A filter screen is connected through one side of the shell, an air outlet is formed on one side of the shell, and two docking ports are formed on opposite surfaces of the two shells.

[0009] The heat recovery device includes an insulation box and a heat absorption pipe, the heat absorption pipe is fixedly connected in the air outlet, one end of the heat absorption pipe is fixedly connected to an air extraction pump, the air extraction pump is fixedly connected to the outside of the insulation box, the output end of the air extraction pump is fixedly connected to a pipeline, the pipeline is connected through the insulation box, the insulation box is connected through an exhaust pipe, the exhaust pipe is connected to an air guide pipe, one end of the air guide pipe is provided with an insulation disk, and the insulation disk is provided outside the rotating nozzle.

[0010] As a further description of the above technical solution:

[0011] The heat recovery device also includes a mounting plate, which is fixedly connected to the outside of the heat preservation plate and fixedly connected to one of the shells. A through hole is opened in the heat preservation plate, and the rotating nozzle is arranged in the through hole.

[0012] As a further description of the above technical solution:

[0013] The diameter of the cross section of the rotating nozzle is slightly smaller than the inner diameter of the through hole.

[0014] As a further description of the above technical solution:

[0015] The insulation device includes two vertical plates and a placement plate, and the two vertical plates are fixedly connected to the same box body, a through pipe is connected through the bottom of the box body, a valve is provided in the through pipe, and the through pipe is connected through the insulation box, and the placement plate is fixedly connected to the insulation box, and a driving motor is fixedly connected to the outside of the placement plate, and a reciprocating screw rod is fixedly connected to the output end of the driving motor, and the reciprocating screw rod is outerly provided with two first connecting blocks, and the two first connecting blocks are fixedly connected to the outside of the placement plate, and four second connecting blocks are symmetrically installed outside the placement plate, and the two second connecting blocks located on one side are fixedly connected to the same sliding rod, and the reciprocating screw rod is outerly provided with a threaded cap, and the threaded cap is sleeved outside the two sliding rods.

[0016] As a further description of the above technical solution:

[0017] The heat preservation device further comprises two locking plates, the two locking plates are fixedly connected to the outside of the threaded cap, and a same cover plate is fixedly connected under the two locking plates.

[0018] As a further description of the above technical solution:

[0019] An air delivery pipe is connected through the cover plate, and the air delivery pipe is fixedly connected to the exhaust pipe.

[0020] As a further description of the above technical solution:

[0021] The cover plate and the box body have the same size, and rubber pads are provided on the opposite surfaces of the cover plate to facilitate sealing.

[0022] As a further description of the above technical solution:

[0023] Two sliding grooves are provided in the threaded cap, and a sliding connection is formed between the sliding rod and the sliding grooves.

[0024] As a further description of the above technical solution:

[0025] The waste heat utilization device includes a processing box and a circular hole. The processing box is fixedly connected to the outside of the insulation box. The circular hole is opened in the insulation box and the processing box. A heating air pipe is fixedly connected in the circular hole, and the heating air pipe is in the processing box. A water inlet pipe is connected through the processing box.

[0026] As a further description of the above technical solution:

[0027] A water outlet pipe is connected through the front of the processing box, and a water valve is arranged in the water outlet pipe.

[0028] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0029] 1. In the present invention, when blowing high-temperature glass, the glass blank is first suspended on the rotating nozzle. Then, the two mold bodies are closed to form a blowing cavity. The blowing assembly and the rotating nozzle are started, so that the high-temperature glass rotates synchronously in the mold body and is blown into shape. At the same time, the vacuum pump is started to suck the cavity inside the mold body, driving air into the cavity through the filter. As the mold body releases heat during operation, the heat is conducted into the cavity through the air and transported to the insulation box through the heat absorption pipe. The temperature of the gas in the insulation box gradually rises. When it reaches a certain temperature, it is guided to the air guide pipe through the exhaust pipe and finally transported to the insulation plate. At this time, the rotating nozzle inside the insulation plate absorbs the heat around it during rotation, thereby preheating the blowing gas inside it. Through the above structure, the waste heat generated by the heat dissipation of the mold can be effectively recovered and used to heat the blowing gas, thereby reducing the problem of sudden cooling of the high-temperature glass caused by direct blowing of cold air during the blowing process, and improving the quality of the finished product and the molding stability.

[0030] 2. In the present invention, when a large amount of high-temperature gas accumulates in the insulation box, it can be used to preheat and insulate unprocessed glass. The high-temperature glass to be processed is pre-placed inside the box body, and then the valve is opened to allow the high-temperature gas in the insulation box to be transported to the box body through the through pipe. At this time, the drive motor is started, and the drive motor drives the threaded rod to rotate, thereby pushing the threaded cap screwed to it to move axially. While the threaded cap moves, it drives the cover plate to slide to the opening of the box body and achieves a snap-fit seal with it. After the drive motor stops running, the insulation gas continues to transport heat into the box body through the gas pipe and the through pipe, thereby achieving effective insulation of the high-temperature glass and delaying its heat loss. This process not only improves the processable time window of the high-temperature glass, but also improves the overall processing efficiency and energy-saving effect.

[0031] 3. In the present invention, after continuous accumulation, the hot gas in the insulation box flows into the heating gas pipe provided thereon through the circular hole and is further transported to the treatment box. The hot gas heats the water inside the treatment box, so that the water body is maintained at a suitable temperature level. When the blown glass products need to be quenched with warm water, it is only necessary to open the provided valve to draw out the heated warm water for use. Through the above-mentioned heat energy recycling path, the waste heat resources in the blowing process can be cascaded and the overall energy utilization efficiency of the system can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a three-dimensional structural diagram of a double-layer energy-saving glass blowing molding equipment proposed by the present invention;

[0033] Figure 2 This is a schematic diagram of the three-dimensional structure of a rotating nozzle of a double-layer energy-saving glass blowing molding equipment proposed by the present invention;

[0034] Figure 3 This is a three-dimensional structural diagram of a double-layer energy-saving glass blowing molding device proposed by the present invention;

[0035] Figure 4 This is a three-dimensional structural diagram of a double-layer energy-saving glass blowing molding equipment shell proposed by the present invention;

[0036] Figure 5 This is a three-dimensional structural diagram of a heat preservation device for a double-layer energy-saving glass blowing molding equipment proposed by the present invention;

[0037] Figure 6 A double-layer energy-saving glass blowing molding equipment proposed by the present invention Figure 3 Schematic diagram of the structure with part A enlarged.

[0038] Legend:

[0039] 1. Molding equipment; 2. Blowing assembly; 3. Rotating nozzle; 4. Molding device; 401. Shell; 402. Cavity; 403. Mold body; 404. Filter; 405. Air outlet; 406. Docking port; 5. Heat recovery device; 501. Insulation box; 502. Heat absorption pipe; 503. Air pump; 504. Pipeline; 505. Exhaust pipe; 506. Air guide pipe; 507. Insulation tray; 508. Mounting plate; 509. Through hole; 6. Insulation device; 601. Vertical plate; 602, box body; 603, through pipe; 604, valve; 605, placement plate; 606, drive motor; 607, reciprocating screw; 608, first connecting block; 609, second connecting block; 610, sliding rod; 611, threaded cap; 612, locking plate; 613, cover plate; 614, gas pipe; 7, waste heat utilization device; 701, treatment box; 702, round hole; 703, heating gas pipe; 704, water inlet pipe; 705, water outlet pipe; 706, water valve. DETAILED DESCRIPTION

[0040] 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.

[0041] See also Figures 1-6 The present invention provides a technical solution: a double-layer energy-saving glass blowing molding device, comprising a molding device 1, a blowing assembly 2 installed in the molding device 1, and a rotating nozzle 3 installed below the blowing assembly 2. The rotating nozzle 3 is rotated by a transmission structure of a worm and a worm gear, wherein the worm is driven to rotate by an external driving device, driving the worm gear meshing with it to rotate, and then driving the nozzle to rotate along its axis. This structure not only has stable transmission and high torque, but also can realize continuous rotation of the nozzle in a high-temperature environment, which is beneficial to uniform heating and consistent molding of the high-temperature glass during the blowing process;

[0042] A molding device 4 is installed in the molding device 1, a heat recovery device 5 is installed on the molding device 1, a heat preservation device 6 is installed on the heat recovery device 5, and a waste heat utilization device 7 is fixedly connected to the outside of the heat recovery device 5;

[0043] The molding device 4 includes two housings 401, each housing 401 defines a cavity 402. A mold body 403 is mounted on opposing surfaces of the two housings 401. A filter 404 is connected through one side of the housing 401. An air outlet 405 is defined on one side of the housing 401. Two docking ports 406 are defined on opposing surfaces of the two housings 401.

[0044] The heat recovery device 5 includes an insulation box 501 and a heat absorption pipe 502. The heat absorption pipe 502 is fixedly connected to the air outlet 405. One end of the heat absorption pipe 502 is fixedly connected to an air extraction pump 503. The air extraction pump 503 is fixedly connected to the outside of the insulation box 501. The output end of the air extraction pump 503 is fixedly connected to a pipe 504. The pipe 504 is connected to the insulation box 501 through the insulation box 501. The exhaust pipe 505 is connected to the exhaust pipe 505. The exhaust pipe 505 is connected to the air guide pipe 506. One end of the air guide tube 506 is provided with an insulation disk 507, and the insulation disk 507 is arranged outside the rotating nozzle 3. The rotating nozzle 3 is arranged in the through hole 509 of the insulation disk 507. The cross-sectional diameter thereof is slightly smaller than the inner diameter of the through hole 509, forming a micro-gap fitting structure. This size matching can not only ensure that the nozzle can rotate freely in the through hole 509, but also use the heat accumulated inside the insulation disk 507 to effectively cover and heat the nozzle, thereby improving the stability of the blowing temperature and avoiding heat loss.

[0045] Specifically, such as Figure 2-4 As shown, the heat recovery device 5 also includes a mounting plate 508, which is fixedly connected to the outside of the insulation plate 507, and the mounting plate 508 is fixedly connected to one of the shells 401. A through hole 509 is opened in the insulation plate 507, and the rotating nozzle 3 is arranged in the through hole 509. The diameter of the cross section of the rotating nozzle 3 is slightly smaller than the inner diameter of the through hole 509.

[0046] Specifically, such as Figure 5 As shown, the heat preservation device 6 includes two vertical plates 601 and a placement plate 605. The two vertical plates 601 are fixedly connected to the same box body 602. A through pipe 603 is connected through the bottom of the box body 602. A valve 604 is provided in the through pipe 603. The through pipe 603 is connected to the heat preservation box 501. The placement plate 605 is fixedly connected to the heat preservation box 501. A drive motor 606 is fixedly connected to the outside of the placement plate 605. The output end of the drive motor 606 is fixedly connected to a reciprocating screw 607. The reciprocating screw 607 is provided with two first connecting blocks 608 on the outer sleeve. The two first connecting blocks 608 are fixedly connected to the outside of the placement plate 605. Four second connecting blocks 609 are symmetrically installed on the outside of the placement plate 605. The two second connecting blocks on one side are fixedly connected to the outside of the placement plate 605. The block 609 is fixedly connected to the same sliding rod 610, and the reciprocating screw rod 607 is provided with a threaded cap 611 on the outer surface of the two sliding rods 610. The threaded cap 611 is sleeved on the outside of the two sliding rods 610. The heat preservation device 6 also includes two locking plates 612, and the two locking plates 612 are fixedly connected to the outside of the threaded cap 611. The same cover plate 613 is fixedly connected under the two locking plates 612. The cover plate 613 is connected through the gas pipe 614, and the gas pipe 614 is connected to the inside of the cover plate 613 to achieve closed transportation of high-temperature gas from the exhaust pipe 505 to the box body 602. This structure enables the cover plate 613 to simultaneously complete the sealing and gas guiding functions after closing with the box body 602, thereby improving the overall structural integration and avoiding the leakage risk caused by the traditional external conduit.

[0047] The gas pipe 614 is fixedly connected to the exhaust pipe 505. The cover plate 613 and the box body 602 are of the same size, and the facing surfaces of the two are provided with rubber pads for easy sealing. The rubber pads are arranged between the contact surfaces of the cover plate 613 and the box body 602, forming a flexible sealing structure. When the threaded transmission mechanism presses the cover plate 613 onto the box body 602, the rubber pads can compensate for processing errors and enhance airtightness, ensuring that high-temperature gas will not leak, thereby improving thermal insulation efficiency and safety.

[0048] Two sliding grooves are defined in the threaded cap 611 , and a sliding connection is formed between the sliding rod 610 and the sliding grooves.

[0049] Specifically, such as Figure 3 and Figure 6 As shown, the waste heat utilization device 7 includes a processing box 701 and a circular hole 702. The processing box 701 is fixedly connected to the outside of the insulation box 501. The circular hole 702 is opened in the insulation box 501 and the processing box 701. A heating air pipe 703 is fixedly connected in the circular hole 702, and the heating air pipe 703 is in the processing box 701. A water inlet pipe 704 is connected through the processing box 701. A water outlet pipe 705 is connected through the front of the processing box 701, and a water valve 706 is provided in the water outlet pipe 705.

[0050] Working principle, when in use: when blowing high-temperature glass, first hang the glass blank on the rotating nozzle 3, then close the two mold bodies 403 to form a blowing cavity, start the blowing assembly 2 and the rotating nozzle 3, so that the high-temperature glass rotates synchronously in the mold body 403 and performs the blowing molding operation. At the same time, the air pump 503 is started to suck the cavity 402 inside the mold body 403, driving air to enter the cavity 402 through the filter 404. As the mold body 403 releases heat during operation, the heat is conducted into the cavity 402 through the air and is transported to the insulation box 501 through the heat absorption pipe 502. The temperature of the gas in the insulation box 501 gradually rises. When it reaches a certain temperature, it is guided to the air guide pipe 506 through the exhaust pipe 505 and finally transported to the insulation plate 507. At this time, the rotating nozzle 3 inside the insulation plate 507 absorbs the heat around it during the rotation process, thereby preheating the blowing gas inside it.

[0051] When a large amount of high-temperature gas accumulates in the heat preservation box 501, it can be used to preheat and keep the unprocessed glass warm. The high-temperature glass to be processed is pre-placed in the box body 602. Then, the valve 604 is opened to allow the high-temperature gas in the heat preservation box 501 to be transported to the box body 602 through the through pipe 603. At this time, the drive motor 606 is started, and the drive motor 606 drives the threaded rod to rotate, thereby pushing the threaded cap 611 screwed thereto to move axially. While the threaded cap 611 moves, it drives the cover plate 613 to slide to the opening of the box body 602 and achieves a locking seal with it. After the drive motor 606 stops running, the heat preservation gas continues to transport heat to the box body 602 through the gas pipe 614 and the through pipe 603, thereby effectively keeping the high-temperature glass warm and delaying its heat loss.

[0052] After continuous accumulation, the hot gas in the insulation box 501 flows into the heating gas pipe 703 provided thereon through the circular hole 702, and is further transported to the processing box 701. The hot gas heats the water inside the processing box 701, so that the water body is maintained at a suitable temperature level. When the blown glass products need to be quenched with warm water, the heated water can be drawn out for use by simply opening the valve 604.

[0053] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A double-layer energy-saving glass blowing molding device, comprising a molding device (1), characterized in that: The molding device (1) is provided with a blowing assembly (2), a rotating nozzle (3) is provided below the blowing assembly (2), a molding device (4) is provided inside the molding device (1), a heat recovery device (5) is provided on the molding device (1), a heat preservation device (6) is provided on the heat recovery device (5), and a waste heat utilization device (7) is fixedly connected to the outside of the heat recovery device (5); The molding device (4) comprises two sleeves (401), each of which has a cavity (402) formed therein, and a mold body (403) mounted on opposite surfaces of the two sleeves (401), a filter screen (404) extending through one side of the sleeve (401), an air outlet (405) formed on one side of the sleeve (401), and two docking ports (406) formed on opposite surfaces of the two sleeves (401); The heat recovery device (5) comprises a heat preservation box (501) and a heat absorption pipe (502), wherein the heat absorption pipe (502) is fixedly connected to the air outlet (405), one end of the heat absorption pipe (502) is fixedly connected to an air extraction pump (503), the air extraction pump (503) is fixedly connected to the outside of the heat preservation box (501), the output end of the air extraction pump (503) is fixedly connected to a pipe (504), the pipe (504) is connected through the heat preservation box (501), an exhaust pipe (505) is connected through the heat preservation box (501), an air guide pipe (506) is connected to the exhaust pipe (505), one end of the air guide pipe (506) is sleeved with a heat preservation plate (507), and the heat preservation plate (507) is sleeved outside the rotating nozzle (3).

2. The double-layer energy-saving glass blowing molding equipment according to claim 1 is characterized in that: The heat recovery device (5) further comprises a mounting plate (508), wherein the mounting plate (508) is fixedly connected to the outside of the heat preservation plate (507), and the mounting plate (508) is fixedly connected to one of the housings (401). A through hole (509) is provided in the heat preservation plate (507), and the rotating nozzle (3) is arranged in the through hole (509).

3. The double-layer energy-saving glass blowing molding equipment according to claim 2, characterized in that: The diameter of the cross section of the rotating nozzle (3) is slightly smaller than the inner diameter of the through hole (509).

4. The double-layer energy-saving glass blowing molding equipment according to claim 1, characterized in that: The heat preservation device (6) comprises two vertical plates (601) and a placement plate (605). The two vertical plates (601) are fixedly connected to a same box body (602). A through pipe (603) is connected through the bottom of the box body (602). A valve (604) is provided in the through pipe (603). The through pipe (603) is connected through the heat preservation box (501). The placement plate (605) is fixedly connected to the heat preservation box (501). A driving motor (606) is fixedly connected to the outside of the placement plate (605). The drive motor (606) is driven by a motor. The output end is fixedly connected to a reciprocating screw rod (607), and the outer shell of the reciprocating screw rod (607) is provided with two first connecting blocks (608), and the two first connecting blocks (608) are fixedly connected to the outside of the placement plate (605). Four second connecting blocks (609) are symmetrically installed outside the placement plate (605), and the two second connecting blocks (609) located on one side are fixedly connected to the same sliding rod (610). The outer shell of the reciprocating screw rod (607) is provided with a threaded cap (611), and the threaded cap (611) is sleeved outside the two sliding rods (610).

5. The double-layer energy-saving glass blowing molding equipment according to claim 4, characterized in that: The heat preservation device (6) further comprises two locking plates (612), wherein the two locking plates (612) are fixedly connected to the outside of the threaded cap (611), and a same cover plate (613) is fixedly connected under the two locking plates (612).

6. The double-layer energy-saving glass blowing molding equipment according to claim 5, characterized in that: An air delivery pipe (614) is connected through the cover plate (613), and the air delivery pipe (614) is fixedly connected to the exhaust pipe (505).

7. The double-layer energy-saving glass blowing molding equipment according to claim 5, characterized in that: The cover plate (613) is of the same size as the box body (602), and rubber pads are provided on the facing surfaces of the two to facilitate sealing.

8. The double-layer energy-saving glass blowing molding equipment according to claim 4, characterized in that: Two sliding grooves are provided in the threaded cap (611), and a sliding connection is formed between the sliding rod (610) and the sliding grooves.

9. The double-layer energy-saving glass blowing molding equipment according to claim 1, characterized in that: The waste heat utilization device (7) comprises a treatment box (701) and a circular hole (702). The treatment box (701) is fixedly connected to the outside of the heat preservation box (501). The circular hole (702) is provided in the heat preservation box (501) and the treatment box (701). A heating gas pipe (703) is fixedly connected in the circular hole (702), and the heating gas pipe (703) is located in the treatment box (701). A water inlet pipe (704) is connected to and penetrates the treatment box (701).

10. The double-layer energy-saving glass blowing molding equipment according to claim 9, characterized in that: A water outlet pipe (705) is connected through the front of the treatment box (701), and a water valve (706) is provided in the water outlet pipe (705).

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