阅读说明：本技术 一种无级真空调节器 (Stepless vacuum regulator ) 是由 李志强 林苏 周家灏 朱威 骆小刚 于 2021-07-13 设计创作，主要内容包括：本发明公开了一种无级真空调节器,包括管状腔体、抽真空气管接头、传动轴、左分流调节活塞和右分流调节活塞,抽真空气管接头安装在管状腔体一侧中部的抽气孔处,管状腔体的另一侧分布有一排真空吸孔,传动轴安装在管状腔体中,传动轴的表面设有螺旋方向相反的左螺纹段和右螺纹段,左分流调节活塞和右分流调节活塞分别穿插安装在传动轴上的左螺纹段和右螺纹段,抽气孔位于左分流调节活塞和右分流调节活塞之间。本专利无级真空调节器,可以适用于规格尺寸相差过大的产品,尤其是不受柔性屏产品尺寸的限制,可以方便地对任何规格的柔性屏进行吸附定位,不仅避免了空间和人力资源的浪费,而且还大大提高了真空调节效率。(The invention discloses a stepless vacuum regulator, which comprises a tubular cavity, a vacuumizing air pipe joint, a transmission shaft, a left shunt regulating piston and a right shunt regulating piston, wherein the vacuumizing air pipe joint is arranged at an air exhaust hole in the middle of one side of the tubular cavity, a row of vacuum suction holes are distributed on the other side of the tubular cavity, the transmission shaft is arranged in the tubular cavity, a left thread section and a right thread section which are opposite in spiral direction are arranged on the surface of the transmission shaft, the left shunt regulating piston and the right shunt regulating piston are respectively inserted into the left thread section and the right thread section which are arranged on the transmission shaft, and the air exhaust hole is positioned between the left shunt regulating piston and the right shunt regulating piston. This stepless vacuum regulator of patent can be applicable to the product that specification size differed too greatly, especially does not receive the restriction of flexible screen product size, can adsorb the location to the flexible screen of any specification conveniently, has not only avoided the waste of space and manpower resources, but also has improved vacuum regulation efficiency greatly.)

1. A stepless vacuum regulator is characterized in that: comprises a tubular cavity, a vacuumizing air pipe joint, a transmission shaft, a left shunt adjusting piston and a right shunt adjusting piston, wherein two ends of the tubular cavity are closed, the middle part of one side of the tubular cavity is provided with an air exhaust hole, the vacuumizing air pipe joint is arranged at the air exhaust hole, the other side of the tubular cavity is provided with a row of vacuum suction holes, the transmission shaft is arranged in the tubular cavity, the power input end of the transmission shaft is positioned outside the tubular cavity, the surface of the transmission shaft is provided with a left thread section and a right thread section, the screw directions of the left screw thread section and the right screw thread section are opposite, the left shunt adjusting piston and the right shunt adjusting piston are respectively inserted into the left screw thread section and the right screw thread section which are arranged on the transmission shaft, the aspirating hole is located between the left shunt adjusting piston and the right shunt adjusting piston, and when the transmission shaft is rotated, the left shunt adjusting piston and the right shunt adjusting piston move reversely along the tubular cavity simultaneously.

2. The stepless vacuum regulator of claim 1, wherein: the vacuum suction plate is installed on the tubular cavity, and a row of vacuum suction holes in the vacuum suction plate correspond to and are communicated with a row of vacuum suction holes in the tubular cavity in a one-to-one mode.

3. The stepless vacuum regulator of claim 2, wherein: the cross section of the tubular cavity is square, and the inner cavity is circular; the vacuum suction plate comprises a fixed plate and a strip-shaped suction head, the strip-shaped suction head is positioned in the middle of the surface of the fixed plate, and the row of vacuum suction holes penetrate through the strip-shaped suction head and the fixed plate; the fixed plate is fixed on the surface outside the tubular cavity body through screws.

4. The stepless vacuum regulator of claim 3, wherein: the long-strip-shaped suction head is perpendicular to the fixing plate, and the fixing plate and the long-strip-shaped suction head are integrally formed.

5. The stepless vacuum regulator of claim 1, wherein: the two ends of the tubular cavity are respectively provided with a left bearing seat and a right bearing seat, and the transmission shaft is respectively arranged on the left bearing seat and the right bearing seat through bearings.

6. The stepless vacuum regulator of claim 5, wherein: the left bearing seat and the right bearing seat are respectively provided with a left sealing plate and a right sealing plate, one end of a left bolt penetrates through the left sealing plate and the left bearing seat to be connected with a threaded hole in the left end face of the tubular cavity, a left sealing ring is arranged between the left sealing plate and the left bearing seat, one end of a right bolt penetrates through the right sealing plate and the right bearing seat to be connected with a threaded hole in the right end face of the tubular cavity, and a right sealing ring is arranged between the right sealing plate and the right bearing seat.

7. The stepless vacuum regulator of claim 5, wherein: the left shunt adjusting piston comprises a left adjusting threaded sleeve, a left annular piston body and a left O-shaped sealing rubber ring, the left O-shaped sealing rubber ring is arranged in an annular groove on the circumferential surface of the left annular piston body, the left annular piston body is fixed on the left adjusting threaded sleeve, the left adjusting threaded sleeve is sleeved on a left thread section of the transmission shaft, and the internal thread of the left adjusting threaded sleeve is matched with the external thread on the left thread section; the right shunt adjusting piston comprises a right adjusting threaded sleeve, a right annular piston body and a right O-shaped sealing rubber ring, the right O-shaped sealing rubber ring is arranged in an annular groove on the circumferential surface of the right annular piston body, the right annular piston body is fixed on the right adjusting threaded sleeve, the right adjusting threaded sleeve is sleeved on the right thread section of the transmission shaft, and the internal thread of the right adjusting threaded sleeve is matched with the external thread on the right thread section.

8. The stepless vacuum regulator according to any one of claims 1 to 7, wherein: and a manual adjusting wheel is installed at the power input end of the transmission shaft.

9. The stepless vacuum regulator according to any one of claims 1 to 7, wherein: and the power input end of the transmission shaft is provided with an electric drive device.

10. The stepless vacuum regulator of claim 9, wherein: the electric drive device is a stepper motor.

Technical Field

The invention relates to the field of vacuum regulation, in particular to a stepless vacuum regulator suitable for positioning work before a flexible screen gluing process.

Background

In the photoelectric industry, particularly the positioning before the flexible screen gluing process, most of the positioning is performed by a sucker or a platform suction plate, so that the single-platform flexible screen can be used in multiple specifications and can be widely applied in the industry; however, the use and adjustment among multiple specifications of products are inconvenient, the size of the product cannot be greatly different, the limitation is too much, certain space and human resource waste can be caused, and the efficiency is relatively reduced; therefore, in order to meet the production requirements, a stepless vacuum regulator is urgently needed to be developed to solve the problems that the product specification and size are too large to be compatible for use and the regulation is inconvenient.

Disclosure of Invention

The present invention is directed to a stepless vacuum regulator that solves one or more of the problems set forth in the prior art, and provides at least one of the advantages of the present invention.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

a stepless vacuum regulator comprises a tubular cavity, a vacuumizing air pipe joint, a transmission shaft, a left shunt regulating piston and a right shunt regulating piston, wherein two ends of the tubular cavity are sealed, the middle part of one side of the tubular cavity is provided with an air exhaust hole, the vacuumizing air pipe joint is arranged at the air exhaust hole, the other side of the tubular cavity is provided with a row of vacuum suction holes, the transmission shaft is arranged in the tubular cavity, the power input end of the transmission shaft is positioned outside the tubular cavity, the surface of the transmission shaft is provided with a left thread section and a right thread section, the screw directions of the left screw thread section and the right screw thread section are opposite, the left shunt adjusting piston and the right shunt adjusting piston are respectively inserted into the left screw thread section and the right screw thread section which are arranged on the transmission shaft, the aspirating hole is located between the left shunt adjusting piston and the right shunt adjusting piston, and when the transmission shaft is rotated, the left shunt adjusting piston and the right shunt adjusting piston move reversely along the tubular cavity simultaneously.

Furthermore, a vacuum suction plate is installed on the tubular cavity, and a row of vacuum suction holes in the vacuum suction plate correspond to and are communicated with a row of vacuum suction holes in the tubular cavity in a one-to-one manner.

Furthermore, the cross section of the tubular cavity is square, and the inner cavity is circular; the vacuum suction plate comprises a fixed plate and a strip-shaped suction head, the strip-shaped suction head is positioned in the middle of the surface of the fixed plate, and the row of vacuum suction holes penetrate through the strip-shaped suction head and the fixed plate; the fixed plate is fixed on the surface outside the tubular cavity body through screws.

Furthermore, the strip-shaped suction head is perpendicular to the fixing plate, and the fixing plate and the strip-shaped suction head are integrally formed.

Furthermore, a left bearing seat and a right bearing seat are respectively arranged at two ends of the tubular cavity, and the transmission shaft is respectively arranged on the left bearing seat and the right bearing seat through bearings.

Furthermore, a left sealing plate and a right sealing plate are respectively arranged on the left bearing seat and the right bearing seat, one end of a left bolt penetrates through the left sealing plate and the left bearing seat to be connected with a threaded hole in the left end face of the tubular cavity, a left sealing ring is arranged between the left sealing plate and the left bearing seat, one end of a right bolt penetrates through the right sealing plate and the right bearing seat to be connected with a threaded hole in the right end face of the tubular cavity, and a right sealing ring is arranged between the right sealing plate and the right bearing seat.

Furthermore, the left shunt adjusting piston comprises a left adjusting threaded sleeve, a left annular piston body and a left O-shaped sealing rubber ring, the left O-shaped sealing rubber ring is arranged in an annular groove on the circumferential surface of the left annular piston body, the left annular piston body is fixed on the left adjusting threaded sleeve, the left adjusting threaded sleeve is sleeved on a left thread section of the transmission shaft, and the internal thread of the left adjusting threaded sleeve is matched with the external thread on the left thread section; the right shunt adjusting piston comprises a right adjusting threaded sleeve, a right annular piston body and a right O-shaped sealing rubber ring, the right O-shaped sealing rubber ring is arranged in an annular groove on the circumferential surface of the right annular piston body, the right annular piston body is fixed on the right adjusting threaded sleeve, the right adjusting threaded sleeve is sleeved on the right thread section of the transmission shaft, and the internal thread of the right adjusting threaded sleeve is matched with the external thread on the right thread section.

Furthermore, a manual adjusting wheel is installed at the power input end of the transmission shaft.

Further, an electric driving device is installed at the power input end of the transmission shaft.

Further, the electric drive is a stepper motor.

The invention has the beneficial effects that:

this stepless vacuum regulator of patent can be applicable to the product that specification size differed too greatly, especially does not receive the restriction of flexible screen product size, can adsorb the location to the flexible screen of any specification conveniently, has not only avoided the waste of space and manpower resources, but also has improved vacuum regulation efficiency greatly.

Drawings

The invention is further described with the aid of the accompanying drawings, in which the embodiments do not constitute any limitation, and for a person skilled in the art, without inventive effort, further drawings may be obtained from the following figures:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a perspective view of FIG. 1;

FIG. 3 is an exploded view of FIG. 2;

FIG. 4 is a schematic structural view of the vacuum suction plate shown in FIG. 3;

FIG. 5 is a schematic structural view of the left split adjustment piston of FIG. 3;

fig. 6 is a schematic structural view of the right split flow adjustment piston shown in fig. 3.

In the figure: 1. a tubular cavity; 2. a vacuum pumping air pipe joint; 3. a drive shaft; 4. a left shunt adjustment piston; 5. a right shunt adjustment piston; 6. an air exhaust hole; 7. vacuum suction holes; 8. a vacuum suction plate; 9. a vacuum suction hole; 10. a fixing plate; 11. a strip-shaped suction head; 12. a left bearing seat; 13. a right bearing seat; 14. a left seal plate; 15. a right sealing plate; 16. a left sealing ring; 17. a threaded hole; 18. a right seal ring; 19. a left adjusting threaded sleeve; 20. a left annular piston body; 21. a left O-shaped sealing rubber ring; 22. a right adjusting threaded sleeve; 23. a right annular piston body; 24. a right O-shaped sealing rubber ring; 25. a manual adjustment wheel; 26. an annular groove.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and specific embodiments, and it is to be noted that the embodiments and features of the embodiments of the present application can be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper surface", "lower surface", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "forward", "reverse", "axial", "radial", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

As shown in fig. 1, 2 and 3, a stepless vacuum regulator comprises a tubular cavity 1, a vacuumizing air pipe joint 2, a transmission shaft 3, a left shunt regulating piston 4 and a right shunt regulating piston 5, wherein the cross section of the tubular cavity 1 is square, the inner cavity is circular, two ends of the tubular cavity 1 are sealed, an air suction hole 6 is arranged in the middle of one side of the tubular cavity 1, the vacuumizing air pipe joint 2 is arranged at the air suction hole 6, a row of vacuum suction holes 7 are distributed on the other side of the tubular cavity 1, the transmission shaft 3 is arranged in the tubular cavity 1, the power input end of the transmission shaft 3 is positioned outside the tubular cavity 1, a left thread section and a right thread section are arranged on the surface of the transmission shaft 3, the spiral directions of the left thread section and the right thread section are opposite, the left shunt regulating piston 4 and the right shunt regulating piston 5 are respectively inserted into the left thread section and the right thread section on the transmission shaft 3, the aspirating hole 6 is located between the left shunt adjusting piston 4 and the right shunt adjusting piston 5, when the transmission shaft 3 is rotated, the left shunt adjusting piston 4 and the right shunt adjusting piston 5 move reversely along the tubular cavity body, and during operation, a cavity between the left shunt adjusting piston 4 and the right shunt adjusting piston 5 in the tubular cavity body 1 is a vacuum cavity.

The tubular cavity 1 is provided with a vacuum suction plate 8, and a row of vacuum suction holes 9 on the vacuum suction plate 8 correspond to and are communicated with a row of vacuum suction holes 7 on the tubular cavity 1 one by one.

As shown in fig. 4, the vacuum suction plate 8 includes a fixing plate 10 and an elongated suction head 11, the elongated suction head 11 is located in the middle of the plate surface of the fixing plate 10, the fixing plate 10 is fixed on the surface of the tubular cavity 1 by screws, and the row of vacuum suction holes 9 penetrates through the elongated suction head 11 and the fixing plate 10. The long-strip-shaped suction head 11 is perpendicular to the fixing plate 10, and the fixing plate 10 and the long-strip-shaped suction head 11 are integrally formed.

The two ends of the tubular cavity 1 are respectively provided with a left bearing seat 12 and a right bearing seat 13, the transmission shaft 3 is respectively installed on the left bearing seat 12 and the right bearing seat 13 through bearings, the left bearing seat 12 and the right bearing seat 13 are respectively provided with a left sealing plate 14 and a right sealing plate 15, one end of a left bolt penetrates through the left sealing plate 14 and the left bearing seat 12 to be connected with a threaded hole on the left end face of the tubular cavity 1, a left sealing ring 16 is arranged between the left sealing plate 14 and the left bearing seat 12, one end of a right bolt penetrates through the right sealing plate 15 and the right bearing seat 13 to be connected with a threaded hole 17 on the right end face of the tubular cavity 1, and a right sealing ring 18 is arranged between the right sealing plate 15 and the right bearing seat 13.

As shown in fig. 5, the left shunt adjustment piston 4 includes a left adjustment screw sleeve 19, a left annular piston body 20 and a left O-shaped sealing rubber ring 21, the left O-shaped sealing rubber ring 21 is installed in an annular groove on the circumferential surface of the left annular piston body 20, the left annular piston body 20 is fixed on the left adjustment screw sleeve 19, the left adjustment screw sleeve 19 is sleeved on the left thread section of the transmission shaft 3, and the internal thread of the left adjustment screw sleeve 19 is matched with the external thread on the left thread section.

As shown in fig. 6, the right shunt adjustment piston 5 includes a right adjustment screw sleeve 22, a right annular piston body 23 and a right O-shaped sealing rubber ring 24, the right O-shaped sealing rubber ring 24 is installed in an annular groove 26 on the circumferential surface of the right annular piston body 23, the right annular piston body 23 is fixed on the right adjustment screw sleeve 22, the right adjustment screw sleeve 22 is sleeved on the right thread section of the transmission shaft 3, and the internal thread of the right adjustment screw sleeve 22 is matched with the external thread on the right thread section.

And a manual adjusting wheel 25 is installed at the power input end of the transmission shaft 3. Of course, the power input end of the transmission shaft can also be provided with an electric driving device, such as a stepping motor, the transmission shaft is driven to rotate by the stepping motor so as to adjust the working area of the row of vacuum material sucking holes on the vacuum suction plate, when the size of the sucked liquid crystal screen is large, the row of vacuum material sucking holes can participate in material sucking work, and when the size of the liquid crystal screen is small, only the vacuum material sucking holes in the area covered by the liquid crystal screen participate in material sucking work.

The work flow of this patent:

1) before the work: installing and fixing the stepless vacuum regulator on a proper positioning platform; according to the size of the flexible screen during working, the manual adjusting wheel is rotated, the manual adjusting wheel 25 drives the transmission shaft 3, the transmission shaft 3 drives the left shunt adjusting piston 4 and the right shunt adjusting piston 5, so that the left shunt adjusting piston 4 and the right shunt adjusting piston 5 move in opposite directions, a cavity area between the left shunt adjusting piston 4 and the right shunt adjusting piston 5 in the tubular cavity 1 is a vacuum-pumping working area, the size of the vacuum-pumping working area is adjusted by rotating the manual adjusting wheel, so that the size of the vacuumized working area in the tubular cavity 1 corresponding to the vacuum material sucking hole 9 on the vacuum sucking plate 8 is suitable for the size of the current flexible screen, that is, only the vacuum material sucking hole 9 covered by the flexible screen can be put into the work of adsorption positioning, other vacuum material sucking holes outside the flexible screen cannot participate in the adsorption work, and at the moment, other vacuum material sucking holes outside the flexible screen cannot exist in the vacuumizing work area;

2) when in work: placing the flexible screen on a region designated by the platform by the manipulator;

3) when the flexible screen is detected on the platform, the electric element connected with the vacuumizing air pipe joint 2 works to generate vacuum to suck and position the flexible screen;

4) after the glue coating is finished, the electric element works to eliminate vacuum, and the flexible screen is not sucked and positioned any more;

5) the manipulator carries the flexible screen away;

6) thus completing the working process after one vacuum adjustment application.

Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.