阅读说明：本技术 太阳能真空管自动排气封离装置 (Automatic exhaust sealing-off device for solar vacuum tube ) 是由 于学德 成营营 祝世春 程向平 于 2019-11-14 设计创作，主要内容包括：本发明涉及太阳能真空管自动排气封离装置,包括：固定架,支撑架,弹簧固定螺丝杆,弹簧,旋转轴,定位板,托片,火头固定螺丝杆,火头,真空玻璃管,托板,软管,及支撑底座,其中,固定架上端面设置支承架,弹簧固定螺丝杆固定于支承架上,弹簧固定螺丝杆下端与弹簧上端固定连接,定位板与托片之间通过旋转轴连接在一起,弹簧下端与托片固定连接,托板上分别设有气管孔和尾管定位孔,真空玻璃管上设有尾管,尾管依次穿过托片、气管孔与真空抽吸装置相连通,本发明所述装置的优越效果在于能够使真空玻璃管两侧同时被加热,提高了封离的速率,不仅能够被用于太阳能全玻璃真空集热管封离,还适用于其它玻璃管排气尾管的封离,应用范围广泛。(The invention relates to an automatic exhaust and sealing device for a solar vacuum tube, which comprises: the device comprises a fixed frame, a supporting frame, a spring fixing screw rod, a spring, a rotating shaft, a positioning plate, a supporting plate, a fire head fixing screw rod, a fire head, a vacuum glass tube, a supporting plate, a hose and a supporting base, wherein the upper end surface of the fixed frame is provided with the supporting frame, the spring fixing screw rod is fixed on the supporting frame, the lower end of the spring fixing screw rod is fixedly connected with the upper end of the spring, the positioning plate is connected with the supporting plate through the rotating shaft, the lower end of the spring is fixedly connected with the supporting plate, the supporting plate is respectively provided with an air pipe hole and a tail pipe positioning hole, the vacuum glass tube is provided with a tail pipe, and the tail pipe sequentially penetrates through the supporting plate and the air pipe hole to be communicated with a vacuum pumping device. The application range is wide.)

1. The utility model provides a solar vacuum tube self-bleeding seals off device which characterized in that includes: the device comprises a fixing frame, a supporting frame, a spring fixing screw rod, a spring, a rotating shaft, a positioning plate, a supporting sheet, a fire head fixing screw rod, a fire head, a vacuum glass tube, a supporting plate, a hose, a gas tube adjusting valve, a gas tube, a supporting base, a gas pipeline and an oxygen pipeline; the upper end face of the fixing frame is provided with a supporting frame, a spring fixing screw rod is fixed on the supporting frame, the lower end of the spring fixing screw rod is fixedly connected with the upper end of a spring, a positioning plate is fixed on the right side of the fixing frame, the positioning plate is connected with a supporting sheet through a rotating shaft, the lower end of the spring is fixedly connected with the supporting sheet, a supporting sheet hole is formed in the supporting sheet, a supporting plate is arranged on the lower portion of the supporting sheet, a gas pipe hole and a tail pipe positioning hole are formed in the supporting plate respectively, a tail pipe is arranged on a vacuum glass pipe and sequentially penetrates through the supporting sheet hole, the tail pipe positioning hole is communicated with a vacuum suction device, a fire head fixing screw rod is in threaded connection with the supporting sheet through a screw rod screw hole formed in the supporting sheet, fire heads are arranged on two sides.

2. The automatic exhaust and sealing device for solar vacuum tubes as claimed in claim 1, wherein said automatic exhaust and sealing device for vacuum glass tubes is provided with an L-shaped support base for supporting the mount and the pallet.

3. The automatic exhaust and sealing device for the solar vacuum tube as claimed in claim 1, wherein the support frame comprises a vertical support frame rod, a horizontal support frame rod connected with the vertical support frame rod, and a diagonal support frame rod arranged between the vertical support frame rod and the horizontal support frame rod, the horizontal support frame rod is provided with a threaded hole, and the spring fixing screw rod is connected with the threaded hole arranged on the horizontal support frame rod in a matching manner.

4. The automatic exhaust and sealing device for solar vacuum tube according to claim 1, wherein an air tube adjusting valve is disposed between the air tube and the hose.

5. The automatic exhaust and seal-off device for solar vacuum tube as claimed in claim 1, wherein said air tube regulating valve is a ZDLM gas flow regulating valve.

6. The automatic exhaust and sealing device for a solar vacuum tube according to claim 1, wherein the vacuum degree of the vacuum layer of the vacuum glass tube is set to 25.0 x 10 "4 Pa.

7. The automatic exhaust and sealing device for the solar vacuum tube as claimed in claim 1, wherein the diameter of the exhaust hole arranged on the fire head is a conical exhaust hole with a large inside and a small outside.

8. The automatic exhaust and sealing device for the solar vacuum tube as claimed in claim 1, wherein the gas tube is connected to a gas pipeline and an oxygen pipeline respectively.

9. The automatic exhaust and sealing device for the solar vacuum tube as claimed in claim 8, wherein the gas pipe and the oxygen pipe are respectively provided with a gas valve and an oxygen valve.

10. The automatic exhaust and sealing device for the solar vacuum tube as claimed in claim 1, wherein the vacuum glass tube is wrapped and clamped on the supporting plate hole by a fixing clip.

Technical Field

The invention relates to the technical field of vacuum tube exhaust sealing, in particular to an automatic exhaust sealing device for a solar vacuum tube.

Background

When sealing off a glass narrow tube such as a glass exhaust tube, it is necessary to seal off the glass narrow tube by heating and melting. The vacuum tube exhaust tube sealing-off technology is widely applied to the production of all-glass vacuum heat collecting tubes, and the heating modes mainly comprise gas heating and electric heating. The heating and sealing-off by using a gas welding gun is a mature process, and the method comprises the following steps: when heating, an operator takes the welding gun to heat the exhaust pipe back and forth, so that the aim of uniformly shrinking the left and right sides of the exhaust pipe, namely shrinking the exhaust pipe is fulfilled. The method has the advantages of high labor intensity, high requirement on the operation capacity of workers, incapability of ensuring the product quality and consistency, and limitation on the diameter of the sealed part of the exhaust pipe due to the heating mode. Electric heating is a newly emerging sealing-off mode in the recent time, the method is to heat the glass exhaust pipe through the resistance wire surrounding around the exhaust pipe, the exhaust pipe is heated evenly, the sealing-off quality is better, but the method has higher requirements on the flatness of the table top, the table top is in a high-temperature state and is easy to deform when being sealed off, the electric heating rod heats up faster, the temperature of the vacuum pipe is easy to be uneven, so that the rejection rate is high, on the other hand, the use amount of electricity is improved, the energy consumption is increased, the production cost is improved, and the method is not suitable for large-batch automatic production.

For example, utility model patent with application number CN201020502497.4 discloses a solar vacuum tube electric sealing separator, which is characterized in that: comprises a heating furnace and an electric control device; the heating furnace comprises a furnace body and an electric heating wire; an upper furnace mouth is arranged at the top end of the furnace body, a lower furnace mouth is arranged at the bottom end of the furnace body, and a heating cavity is arranged between the upper furnace mouth and the lower furnace mouth; the electric heating wire is arranged in the heating cavity and is electrically connected with the electric control device. The tail pipe is melted by the electric heating wire, so that the tail pipe is separated from the vacuum pipe, the sealing effect is achieved, the sealing effect is good, the sealing quality is stable, the technical scheme can be combined with production equipment of other procedures to realize full-automatic assembly line production of the vacuum pipe, the production efficiency and the product quality are greatly improved, and the production cost is not higher than that of manual operation; however, the positions of the upper furnace opening and the lower furnace opening in the technical scheme are not changed, so that the vacuum tube is not easy to be stably fixed in the heating process.

For another example, patent application No. 201220029106.0 discloses an automatic vacuum electric sealing device for heat collecting tubes. This automatic vacuum electricity of thermal-collecting tube seals from device, its characterized in that: the vacuum heat collecting tube heating device comprises a shell, wherein one end of the shell corresponds to the shape of an evacuated heat collecting tube, the other end of the shell corresponds to the shape of an evacuated suction tube, a sealing element is arranged at the joint of the shell and the heat collecting tube, a heating wire is arranged in the shell, the heating wire and the shell are separated through an insulating part, the heating wire is connected with a power supply through a power line, the lower end of the heating wire is connected with a spring driven by a guide pillar, the tail end of the guide pillar. The device is arranged between the heat collecting pipe and the vacuumizing pipe, an exhaust tail pipe is omitted, and the pipe explosion probability of the all-glass vacuum solar heat collecting pipe in the vacuum exhaust heating process is reduced. However, the automatic vacuum electric sealing-off device for the heat collecting tube heats the heat collecting tube through the row of heating wires, so that the heating is uneven, and the tube explosion problem of the all-glass vacuum solar heat collecting tube in the vacuum exhaust heating process can not be completely avoided in practice.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide an automatic exhaust and sealing-off device for a solar vacuum tube.

The automatic exhaust sealing-off device for the solar vacuum tube comprises: the device comprises a fixing frame, a supporting frame, a spring fixing screw rod, a spring, a rotating shaft, a positioning plate, a supporting sheet, a fire head fixing screw rod, a fire head, a vacuum glass tube, a supporting plate, a hose, a gas tube adjusting valve, a gas tube, a supporting base, a gas pipeline and an oxygen pipeline; wherein, the upper end surface of the fixing frame is provided with a supporting frame, a spring fixing screw rod is fixed on the supporting frame, the lower end of the spring fixing screw rod is fixedly connected with the upper end of the spring, a positioning plate is fixed on the right side of the fixing frame, the positioning plate is connected with a supporting sheet through a rotating shaft, the lower end of the spring is fixedly connected with the supporting sheet, the supporting sheet is provided with a supporting sheet hole, the lower part of the supporting sheet is provided with a supporting plate, the supporting plate is respectively provided with a gas pipe hole and a tail pipe positioning hole, a tail pipe is arranged on the vacuum glass pipe and sequentially passes through the supporting sheet hole and the tail pipe positioning hole to be communicated with a vacuum suction device, a fire head fixing screw rod is in threaded connection with the supporting sheet through a screw rod screw hole arranged on the supporting sheet, fire heads are arranged on two sides of the tail pipe and are fixed by a fire head fixing screw, so as to convey the mixed gas to the exhaust hole arranged on the fire head.

Furthermore, the automatic exhaust and sealing-off device for the solar vacuum tube is provided with an L-shaped supporting base for supporting the fixing frame and the supporting plate.

Furthermore, the support frame comprises a support frame vertical rod, a support frame horizontal rod connected with the support frame vertical rod and a support frame inclined rod supported between the support frame vertical rod and the support frame horizontal rod, a threaded hole is formed in the support frame horizontal rod, and the spring fixing lead screw is connected with the threaded hole in a matched mode through the threaded hole.

Further, an air pipe regulating valve is arranged between the air pipe and the hose and used for regulating the flow of the mixed gas conveyed to the fire head.

Further, the gas pipe regulating valve is a ZDLM gas flow regulating valve.

Further, the vacuum glass tube is composed of an inner tube, a vacuum layer and an outer tube.

Further, the degree of vacuum of the vacuum layer of the vacuum glass tube was set to 25.0X 10-4 Pa.

Furthermore, the vent hole diameter of the fire head is a conical vent hole with a large inner part and a small outer part, so that the fire of the fire head can be gathered.

Further, the gas pipe is respectively communicated with the gas pipeline and the oxygen pipeline.

Further, the gas pipe and the oxygen pipe are respectively provided with a gas valve and an oxygen valve (not shown) to respectively adjust the amount of gas and the amount of oxygen delivered to the gas pipe.

Furthermore, the vacuum glass tube is wrapped and clamped on the supporting plate hole through a fixing clip.

Compared with the prior art, the automatic exhaust and sealing-off device for the solar vacuum tube has the following excellent technical effects:

the automatic exhaust and sealing device for the solar vacuum tube can heat two sides of a vacuum glass tube simultaneously, and improves the sealing rate.

2, the fire head arranged on the automatic exhaust and sealing device for the solar vacuum tube can move up and down along with the vacuum glass tube, so that the vacuum glass tube is heated uniformly and consistently, the process of waist folding of the exhaust tube sealing position by common gas heating is eliminated, the vacuum tube is automatically sealed under the action of the arranged spring, the operation is simple and convenient, the inconsistency of manual operation is reduced, the production process can be better controlled, the product quality is improved, the production efficiency is improved, the blank of the automatic exhaust and sealing device for the solar vacuum tube at home and abroad is filled, and the automatic exhaust and sealing device for the solar vacuum tube is worthy of being widely popularized and applied to the mechanized production of all-glass vacuum heat collecting tubes with different specifications.

3, the automatic exhaust sealing-off device for the solar vacuum tube, disclosed by the invention, not only can be used for sealing off the solar all-glass vacuum heat collecting tube, but also is suitable for sealing off the exhaust tail tube of other glass tubes, and is wide in application range.

Drawings

FIG. 1 is a schematic structural view of an automatic exhaust and sealing-off device for a solar vacuum tube according to the present invention;

description of reference numerals: 1-a fixed mount; 2-support frame, 21-support frame vertical rod, 22-support frame cross rod, 23-support frame diagonal rod and 24-threaded hole; 3-spring fixing the screw rod; 4-a spring; 5-a rotating shaft; 6, positioning a plate; 7-support sheet, 71-support sheet hole; 8-fire head fixing screw rod; 9-fire head, 91-exhaust hole; 10-vacuum glass tube, 1011-inner tube, 1012-outer tube, 1013-vacuum layer, 1014-fixing clip, 1015-tail tube; 11-supporting plate, 1111-tail pipe positioning hole, 1112-air pipe hole; 12-a hose; 13-a gas pipe regulating valve; 14-trachea; 141-trachea branch tubes; 15-L-shaped support base; 16-a gas pipeline; 17 oxygen line.

Detailed Description

The automatic exhaust and sealing-off device for the solar vacuum tube is described in detail below with reference to the drawings and the specific embodiments of the specification.

As shown in fig. 1, the automatic exhaust and sealing device for a solar vacuum tube of the present invention comprises: the device comprises a fixed frame 1, a support frame 2, a spring fixing screw rod 3, a spring 4, a rotating shaft 5, a positioning plate 6, a supporting sheet 7, a fire head fixing screw rod 8, a fire head 9, a vacuum glass tube 10, a supporting plate 11, a hose 12, an air tube adjusting valve 13, an air tube 14, an L-shaped support base 15, a fuel gas conveying pipeline 16 and an oxygen conveying pipeline 17; wherein, the L-shaped supporting base 15 is used for supporting the fixing frame 1 and the supporting plate 11 shown in fig. 1, the upper end surface of the fixing frame 1 is provided with the supporting frame 2, the spring fixing screw rod 3 is fixed on the supporting frame 2, the lower end of the spring fixing screw rod 3 is fixedly connected with the upper end of the spring 4, the positioning plate 6 is fixed on the right side of the fixing frame 1, the positioning plate 6 is connected with the supporting plate 7 through the rotating shaft 5, the lower end of the spring 4 is fixedly connected with the supporting plate 7, the supporting plate 7 is provided with a supporting plate hole 701, the lower part of the supporting plate 7 is provided with the supporting plate 11, the supporting plate 11 is respectively provided with an air pipe hole 1112 and a tail pipe positioning hole 1111, the vacuum glass tube 10 is provided with a tail pipe 1015, the tail pipe 1015 sequentially passes through the supporting plate hole 701 and the tail pipe positioning hole 1111 to be communicated with a vacuum suction device (not shown, the fire head 9 is fixed by a fire head fixing screw rod 8 arranged on the supporting sheet 7, the relative position between the fire head 9 and the tail pipe 1015 is fixed by rotating the fire head fixing screw rod 8, the air pipe 14 is communicated with the fire head 9 through an air pipe hole 1112 by sequentially passing through the hose 12 and the air pipe branch pipe 141, so that the mixed gas from the air pipe 14 is conveyed to the exhaust hole 91 arranged on the fire head 9.

Further, the automatic exhaust and sealing-off device for the solar vacuum tube is provided with an L-shaped base 15 for supporting the fixed frame 1 and the supporting plate 11.

Further, the support frame 2 is composed of a support frame vertical rod 21, a support frame cross rod 22 and a support frame inclined rod 23 arranged between the support frame vertical rod 21 and the support frame cross rod 22, a threaded hole 24 is formed in the support frame cross rod 22, and the spring fixing screw rod 3 is in threaded fit connection with the threaded hole 24.

Further, an air pipe adjusting valve 13 is arranged between the air pipe 14 and the hose 12 and used for adjusting the flame size of the fire head 9.

Further, the gas pipe regulating valve 13 is a ZDLM gas flow regulating valve.

Further, the degree of vacuum of the vacuum layer in the vacuum glass tube 10 was set to 5.0X 10-4 Pa.

Further, the vent hole 91 formed in the fire head 9 is a conical vent hole with a large inner part and a small outer part, so as to facilitate the fire gathering of the fire head 9.

Further, the gas pipe 14 communicates with a gas pipe 16 and an oxygen pipe 17, respectively, and supplies the mixed gas to the burner 9.

Further, the gas pipe 16 and the oxygen pipe 17 are respectively provided with a gas valve and an oxygen valve (not shown) to adjust the amount of gas and the amount of oxygen to be delivered according to actual requirements.

Further, the vacuum glass tube 10 is composed of an inner tube 1011, a vacuum layer 1012, and an outer tube 1013, the outer tube 1013 is wrapped and held by a fixing clip 1014, and the fixing clip 1014 is engaged with the blade hole 701.

The following brief description of the operation of the automatic exhaust and sealing device for a solar vacuum tube of the present invention is as follows:

1, firstly, connecting a tail pipe 1015 on a vacuum glass tube 10 to a vacuum-pumping device, starting the vacuum-pumping device, pumping gas in a vacuum layer 1013 between an inner tube 1011 and an outer tube 1012, and starting a sealing-off operation until the vacuum degree of the vacuum layer 1013 to be pumped reaches 5.0 x 10 < -4 > Pa;

2, then, opening a gas valve (not shown) of the gas delivery pipeline 16 and an oxygen valve (not shown) of the oxygen delivery pipeline 17, enabling the gas and the oxygen to flow into the gas pipe 14, enabling the mixed gas of the gas and the oxygen in the gas pipe 14 to flow out through the gas pipe 14, controlling the flow rate of the mixed gas flowing into the fire head 9 by the gas pipe regulating valve 13, ejecting the mixed gas through an exhaust hole 91 formed in the fire head 9, and igniting the mixed gas to uniformly heat the tail pipe 1015;

and 3, after the glass at the sealing position of the tail pipe 1015 is melted, the melted glass liquid seals the pipe hole of the tail pipe 1015, the sealing position is continuously heated, after the melting point of the tail pipe 1015 is reached, the supporting sheet 7 rotates around the rotating shaft 5 under the action of the tensile force of the spring 4, and the vacuum glass pipe 10 is lifted upwards by the supporting sheet 7, so that the automatic exhaust sealing-off of the vacuum glass pipe 10 is completed.

The present invention is described in detail with reference to the accompanying drawings, but the invention is not limited to the scope of the invention, and various modifications or variations which do not require inventive efforts by those skilled in the art are within the scope of the invention.