Vacuum heating device for producing integrally formed glass

Abstract

The utility model discloses a vacuum heating device for producing integrally formed glass, which comprises a furnace frame, a control box and a furnace body which are arranged on the furnace frame in a left-right mode, a control panel is arranged on the control box, and a supporting frame which is horizontally arranged and can ascend and descend is arranged in the control box. The right end of the supporting frame penetrates out of a right box plate of the control box and is provided with a vacuum cavity located above the furnace body. A plurality of connecting pipes which are vertically arranged downwards, are communicated with the vacuum cavity and are used for connecting glass outer sleeves are arranged at the bottom of the vacuum cavity, station holes are formed in the positions, corresponding to the connecting pipes in a one-to-one mode, of the top of the furnace body, and the output end of the control panel is connected with the vacuumizing end of the vacuum cavity and the heating end of the furnace body. According to the utility model, rapid vacuumizing, heating, cooling and batch preparation can be realized, so that the production cycle is shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of glass production, in particular to a vacuum heating device for producing integrally formed glass. Background Art

[0002] Existing methods for integrally forming polygonal glass tubes involve coaxially positioning a solid metal mold within a glass outer tube, then vacuuming and heating the outer tube to produce a one-piece, polygonal glass tube. Compared to traditional methods, this method offers simplified operation, minimal equipment usage, and a simpler molding process, significantly shortening production cycles, improving production efficiency, and ensuring the quality and performance of the finished product. However, prior art lacks dedicated equipment for this method of integrally forming polygonal glass tubes that allows for rapid vacuuming and heating, rapid cooling after heating, and batch production. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a vacuum heating device for producing one-piece molded glass, which can realize rapid vacuuming, heating, cooling and batch preparation, thereby improving production efficiency.

[0004] In order to solve the above technical problems, the technical solutions adopted by the present invention are as follows.

[0005] A vacuum heating device for producing one-piece molded glass includes a furnace frame, on which are provided a control box and a furnace body arranged on the left and right, and a control panel for realizing control and human-computer interaction, wherein the control box is provided with a horizontally arranged and liftable support frame, the right end of the support frame passes through the right box plate of the control box and is provided with a vacuum cavity located above the furnace body; the bottom of the vacuum cavity is provided with a plurality of connecting pipes arranged vertically downward and connected to the vacuum cavity for connecting the glass outer sleeve; the top of the furnace body is provided with a position opposite to each connecting pipe, which is connected to the heating cavity in the furnace body and is used for the glass outer sleeve to pass into and out of the furnace body under the drive of the support frame to realize heating and cooling of the glass outer sleeve; the output end of the control panel is respectively connected to the vacuum end of the vacuum cavity and the heating end of the furnace body.

[0006] Preferably, the inner wall of the furnace body is provided with an insulation layer for enclosing a heating cavity and achieving heat preservation, and the top insulation layer is provided with longitudinal through holes connected to the work station holes and used to pass through the glass outer sleeve at positions opposite to the work station holes, and the bottom insulation layer is provided with a heating wire for heating the heating cavity to achieve heating of the glass outer sleeve, and the insulation layer is also provided with a temperature sensor for monitoring the temperature in the heating cavity; the input end of the control panel is connected to the output end of the temperature sensor, and the output end of the control panel is connected to the controlled end of the heating wire.

[0007] Preferably, the inner wall of the work station hole is covered with a sealing sleeve for contacting with the outer wall of the glass outer sleeve to achieve sealing, and the sealing sleeve is detachably provided with a plug for sealing the work station hole.

[0008] Preferably, the connecting tube comprises several sections of single tubes sealed and connected by flanges so as to adjust the length to adapt to glass outer sleeves of different lengths. The bottom of the connecting tube is sealed and plugged into the glass outer sleeve and is provided with a lock for locking the glass outer sleeve. The bottom of the connecting tube is also removable and is provided with an end cap for sealing the connecting tube.

[0009] Preferably, a mold is provided in the glass outer sleeve, and a push rod is provided in the connecting tube for cooperating with the glass outer sleeve to press the mold tightly and realize coaxial positioning of the mold and the glass outer sleeve.

[0010] Preferably, a motor is provided in the control box, and the controlled end of the motor is connected to the output end of the control panel. The motor is connected to two parallel screw rods which are longitudinally and rotationally arranged on the inner side of the right box plate of the control box through a transmission assembly. The two screw rods are respectively connected to the two sides of the left end of the support frame through the screw nuts. A slideway is provided on the right box plate of the control box, which is in sliding cooperation with the support frame and is used to avoid the support frame during the lifting and lowering process of the support frame.

[0011] Preferably, the vacuum cavity is connected to a vacuum port, which is connected to a vacuum pump through a vacuum pipe, and the vacuum pipe is provided with a vacuum solenoid valve for controlling the on and off of the vacuum pipe; the control box is provided with an analog vacuum pressure gauge connected to the vacuum pipe for measuring the vacuum degree; the input end of the control panel is connected to the output end of the analog vacuum pressure gauge, and the output end of the control panel is connected to the controlled end of the vacuum solenoid valve.

[0012] Preferably, a plurality of cooling fans for blowing air to the glass outer casing to accelerate the cooling of the glass outer casing are provided on the right box panel of the control box, the air inlet of the cooling fan is connected to the air inlet duct, a filter plate for dust removal is provided in the air inlet duct, and an air intake solenoid valve for controlling the on and off of the air intake duct is also provided on the air inlet duct; the output end of the control panel is respectively connected to the controlled end of the cooling fan and the air intake solenoid valve.

[0013] Due to the adoption of the above technical solution, the technical progress achieved by the present invention is as follows.

[0014] The utility model can realize rapid vacuuming, heating, cooling and batch preparation by means of the liftable support frame, vacuum cavity, connecting pipe and furnace body, thereby shortening the production cycle and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 This is an internal cross-sectional view of the heating position of the present invention;

[0017] Figure 3 This is a cross-sectional view of the cooling position of the present invention;

[0018] Figure 4 This is a cross-sectional view of the furnace body of the present utility model;

[0019] Figure 5 This is a schematic diagram of the furnace structure of the present utility model.

[0020] Among them: 1. Furnace frame, 2. Furnace body, 21. Insulation layer, 22. Heating wire, 23. Work station hole, 24. Sealing sleeve, 3. Control box, 31. Slide, 4. Vacuum chamber, 41. Vacuum port, 5. Connecting pipe, 6. Glass outer sleeve, 7. Cooling fan, 8. Control panel, 9. Analog vacuum pressure gauge, 10. Motor, 11. Screw, 12. Support frame, 13. Forma wheel. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0022] A vacuum heating device for producing integrally formed glass, combined with Figures 1 to 4 As shown, it includes a furnace frame 1, on which a control box 3 and a furnace body 2 are arranged. The control box 3 and the furnace body 2 are arranged on the left and right. A Forma wheel 13 is arranged at the bottom of the furnace frame 1. The Forma wheel 13 is used to realize the fixation and movement of the vacuum heating furnace.

[0023] The control box 3 is provided with a horizontally arranged and liftable support frame 12. The right end of the support frame 12 extends through the right box panel of the control box 3 and is provided with a vacuum chamber 4. The vacuum chamber 4 is located above the furnace body 2. The bottom of the vacuum chamber 4 is provided with a plurality of vertically downwardly arranged connecting pipes 5 connected to the vacuum chamber 4. The connecting pipes 5 are used to connect to the glass outer tube 6. The vacuum chamber 4 is also connected to a vacuum pump, which is installed in the control box 3. The vacuum pump is used to evacuate the glass outer tube 6 through the vacuum chamber 4 and the connecting pipes 5. The top of the furnace body 2 is provided with a station hole 23 at a position corresponding to each connecting pipe 5. The station hole 23 is connected to the heating chamber in the furnace body 2. The station hole 23 is used for the glass outer tube 6 to pass into and out of the furnace body 2 under the drive of the support frame 12, thereby achieving heating and cooling of the glass outer tube 6.

[0024] The vacuum chamber 4 can be connected to several glass outer tubes 6 at once via a connecting tube 5, allowing for simultaneous evacuation of the multiple glass outer tubes 6. This significantly reduces evacuation time compared to evacuating the individual tubes one by one. The vacuum chamber 4 is connected to a vacuum port 41, which is connected to a vacuum pump via a vacuum pipe. A vacuum solenoid valve 11 is provided on the vacuum pipe to control the on / off state of the vacuum pipe. The control box 3 is equipped with an analog vacuum pressure gauge 9, which is connected to the vacuum pipe and used to measure the vacuum level.

[0025] The control box 3 is provided with a motor 10, which is connected to two screw rods 11 through a transmission assembly. The two screw rods 11 are arranged in parallel and are respectively arranged longitudinally and rotationally on the inner side of the right box plate of the control box 3. The two screw rods 11 are respectively connected to the left ends of the support frame 12 through screw nuts. When in use, the motor 10 drives the screw rods 11 to rotate forward and reverse, and the forward and reverse rotation of the screw rods 11 realizes the lifting and lowering of the support frame 12. The lifting and lowering of the support frame 12 drives the lifting and lowering of the vacuum chamber 4. The lifting and lowering of the vacuum chamber 4 drives the lifting and lowering of the connecting tube 5 and the glass outer tube 6, so that the glass outer tube 6 penetrates the furnace body 2 and is located in the heating position, as shown in FIG. Figure 2 and the glass outer sleeve 6 passes through the furnace body 2 and is moved outdoors to a cooling position, such as Figure 3 As shown, the glass outer sleeve 6 can be directly brought to room temperature after forming, which greatly improves the cooling speed compared to existing furnaces that cannot directly remove the product after heating. A slide 31 is provided on the right box panel of the control box 3. The slide 31 slides with the support frame 12 and is used to avoid the support frame 12 during the raising and lowering process.

[0026] Several cooling fans 7 are installed on the right panel of the control box 3. These fans are used to blow air toward the glass outer casing 6, thereby accelerating the cooling of the glass outer casing 6. The air inlet of the cooling fans 7 is connected to an air inlet duct, which is equipped with a filter plate for dust removal. The air inlet duct is also equipped with an air inlet solenoid valve for controlling the opening and closing of the air inlet duct.

[0027] The connecting tube 5 comprises several individual tube sections, each sealed and connected by a flange, allowing for easy adjustment of the connecting tube 5's length to accommodate glass outer tubes 6 of varying lengths. The bottom of the connecting tube 5 is sealed and plugged into the glass outer tube 6. A locking latch is also provided at the bottom of the connecting tube 5, securing the glass outer tube 6 and preventing it from accidentally falling. A removable end cap is also provided at the bottom of the connecting tube 5. When some connecting tubes 5 are not connected to the glass outer tube 6, the end cap is used to seal the unconnected connecting tube 5 to prevent vacuuming of the connected glass outer tube 6.

[0028] A mold is provided in the glass outer sleeve 6, and the mold is used to realize partial attachment and molding after the glass outer sleeve 6 is vacuumed and heated to soften. In order to ensure that the mold and the glass outer sleeve 6 are coaxially positioned, a push rod is provided in the connecting tube 5. The push rod is used to contact the top of the mold to support the mold, thereby cooperating with the glass outer sleeve 6 to tighten the mold, ensuring that the mold and the glass outer sleeve 6 are always coaxially positioned.

[0029] The inner wall of the furnace body 2 is provided with an insulation layer 21, which encloses a heating chamber and provides heat preservation. The top insulation layer 21 has longitudinal through-holes at positions opposite the workstation holes 23. These through-holes communicate with the workstation holes 23 and are used to pass through the glass outer sleeve 6. The bottom insulation layer 21 is provided with a heating wire 22, which is used to rapidly heat the heating chamber and, therefore, the glass outer sleeve 6. The insulation layer 21 is also provided with a temperature sensor, which monitors the temperature within the heating chamber.

[0030] The inner wall of the workstation hole 23 is covered with a sealing sleeve 24 made of high-temperature-resistant rubber. This sealing sleeve 24 contacts the outer wall of the glass outer sleeve 6 to achieve a seal. The top of the sealing sleeve 24 is provided with a flange that connects to the outer wall of the furnace body 2. A removable plug made of high-temperature-resistant rubber is attached to the sealing sleeve 24. When part of the workstation hole 23 does not need to pass through the glass outer sleeve 6, the plug is used to seal the workstation hole 23, thereby preventing the heat from escaping from the furnace body 2.

[0031] The control box 3 is also provided with a control panel 8, which is used to implement control and human-computer interaction. The input end of the control panel 8 is connected to the output end of the analog vacuum pressure gauge 9 and the temperature sensor, respectively. The output end of the control panel 8 is connected to the controlled end of the vacuum pump, vacuum solenoid valve 11, motor 10, air intake solenoid valve, cooling fan 7, and heating wire 22 of the furnace body 2, respectively, thereby realizing the control of the present invention.

[0032] When the present invention is in use, the glass outer sleeve 6 of the built-in mold is connected to the connecting pipe 5, and the vacuum pump is turned on to evacuate the glass outer sleeve 6. When the vacuum degree reaches the set value, the vacuum solenoid valve 11 is controlled to block the vacuum pipeline and the vacuum pump is turned off at the same time; the driving motor 10 drives the support frame 12 to descend, thereby driving the glass outer sleeve 6 to descend and penetrate into the furnace body 2, and the heating wire 22 is started to quickly heat the glass outer sleeve 6. After molding, the driving motor 10 drives the support frame 12 to rise, thereby driving the glass outer sleeve 6 to rise and penetrate out of the furnace body 2, so that the glass outer sleeve 6 is moved from the high temperature zone to room temperature for rapid cooling. At the same time, the cooling fan 7 is started to blow air to the glass outer sleeve 6 to dissipate heat, further accelerating the cooling of the glass outer sleeve 6.

Claims

1. A vacuum heating device for producing integrally formed glass, comprising a furnace frame (1), a control box (3) and a furnace body (2) arranged on the left and right sides of the furnace frame (1), a control panel (8) for realizing control and human-machine interaction being arranged on the control box (3), and characterized in that: The control box (3) is provided with a horizontally arranged and liftable support frame (12), the right end of the support frame (12) passes through the right box plate of the control box (3) and is provided with a vacuum chamber (4) located above the furnace body (2); the bottom of the vacuum chamber (4) is provided with a plurality of connecting pipes (5) arranged vertically downward and connected to the vacuum chamber (4) and used to connect the glass outer sleeve (6); the top of the furnace body (2) is provided with a position corresponding to each connecting pipe (5), which is connected to the heating chamber in the furnace body (2) and is used for the glass outer sleeve (6) to pass into and out of the furnace body (2) under the drive of the support frame (12) to achieve heating and cooling of the glass outer sleeve (6); the output end of the control panel (8) is respectively connected to the vacuum end of the vacuum chamber (4) and the heating end of the furnace body (2).

2. The vacuum heating device for producing integrally formed glass according to claim 1, characterized in that: The inner wall of the furnace body (2) is provided with an insulation layer (21) for enclosing a heating cavity and achieving heat preservation. Through holes communicating with the work hole (23) and for passing the glass outer sleeve (6) are longitudinally opened at positions opposite to the work hole (23) on the top insulation layer (21). A heating wire (22) for heating the heating cavity to achieve heating of the glass outer sleeve (6) is provided on the bottom insulation layer (21). A temperature sensor for monitoring the temperature in the heating cavity is also provided on the insulation layer (21); the input end of the control panel (8) is connected to the output end of the temperature sensor, and the output end of the control panel (8) is connected to the controlled end of the heating wire (22).

3. The vacuum heating device for producing integrally formed glass according to claim 1, characterized in that: The inner wall of the workstation hole (23) is covered with a sealing sleeve (24) for contacting the outer wall of the glass outer sleeve (6) to achieve sealing, and the sealing sleeve (24) is detachably provided with a plug for sealing the workstation hole (23).

4. The vacuum heating device for producing integrally formed glass according to claim 1, characterized in that: The connecting tube (5) comprises a plurality of sections of single tubes which are sealed and connected by flanges so as to adjust the length to adapt to glass outer tubes (6) of different lengths. The bottom of the connecting tube (5) is sealed and plugged with the glass outer tube (6) and is provided with a lock for locking the glass outer tube (6). The bottom of the connecting tube (5) is also detachably provided with an end cap for sealing the connecting tube (5).

5. The vacuum heating device for producing integrally formed glass according to claim 1, characterized in that: A mold is provided in the glass outer sleeve (6), and a push rod is provided in the connecting tube (5) for cooperating with the glass outer sleeve (6) to tighten the mold and realize coaxial positioning of the mold and the glass outer sleeve (6).

6. The vacuum heating device for producing integrally formed glass according to claim 1, characterized in that: The control box (3) is provided with a motor (10), the controlled end of the motor (10) is connected to the output end of the control panel (8), the motor (10) is connected to two parallel screw rods (11) which are longitudinally and rotationally arranged on the inner side of the right box plate of the control box (3) through a transmission assembly, and the two screw rods (11) are respectively connected to the left ends of the support frame (12) through screw rod nuts; the right box plate of the control box (3) is provided with a slideway (31) which is slidably matched with the support frame (12) and is used to avoid the support frame (12) during the lifting process of the support frame (12).

7. The vacuum heating device for producing integrally formed glass according to claim 1, characterized in that: The vacuum cavity (4) is connected to a vacuum port (41), which is connected to a vacuum pump via a vacuum pipe. The vacuum pipe is provided with a vacuum solenoid valve for controlling the on / off of the vacuum pipe. The control box (3) is provided with an analog vacuum pressure gauge (9) connected to the vacuum pipe and used for measuring the vacuum degree. The input end of the control panel (8) is connected to the output end of the analog vacuum pressure gauge (9), and the output end of the control panel (8) is connected to the controlled end of the vacuum solenoid valve.

8. The vacuum heating device for producing integrally formed glass according to claim 1, characterized in that: A plurality of cooling fans (7) for blowing air to the glass outer tube (6) to accelerate the cooling of the glass outer tube (6) are arranged on the right box plate of the control box (3); the air inlet of the cooling fan (7) is connected to an air inlet duct, a filter plate for removing dust is arranged in the air inlet duct, and an air inlet solenoid valve for controlling the opening and closing of the air inlet duct is also arranged on the air inlet duct; the output end of the control panel (8) is respectively connected to the cooling fan (7) and the controlled end of the air inlet solenoid valve.

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