阅读说明：本技术 一种ro膜自动卷膜机 (Automatic membrane rolling machine for RO (reverse osmosis) membrane ) 是由 胡扬炬 张涛 石楚道 何亮 于 2021-11-24 设计创作，主要内容包括：本发明公开一种RO膜自动卷膜机,包括卷膜准备平台、翻网平台、翻网机构、收卷机构和缠胶带机构,卷膜准备平台用于将对折的膜片热压平整后进行打胶作业,翻网机构包括压网气缸、推网气缸、压网支撑台、顶网辊装置、顶针装置、翻网前后移动装置和翻网上下移动装置,压网气缸用于压住淡网,推网气缸推动已压住的淡网形成拱形,顶网辊装置和顶针装置配合夹紧淡网,翻网上下移动装置滑动安装于翻网前后移动装置内,顶网辊装置和顶针装置安装于翻网上下移动装置上,翻网机构和收卷机构安装于翻网平台上,收卷机构可将膜元件收卷,缠胶带机构可将膜元件缠绕固定；本装置可实现热压、打胶、放膜、翻网、收卷、缠胶带工艺过程全自动化,提高卷膜效率。(The invention discloses an automatic RO membrane rolling machine, which comprises a membrane rolling preparation platform, a net turning mechanism, a rolling mechanism and a tape winding mechanism, wherein the membrane rolling preparation platform is used for carrying out gluing operation after hot pressing and flattening folded membranes, the net turning mechanism comprises a net pressing cylinder and a net pushing cylinder, the device comprises a net pressing support table, a net pushing roller device, a thimble device, a net turning back-and-forth moving device and a net turning up-and-down moving device, wherein a net pressing cylinder is used for pressing a light net, a net pushing cylinder pushes the pressed light net to form an arch, the net pushing roller device and the thimble device are matched to clamp the light net, the net turning up-and-down moving device is slidably installed in the net turning back-and-forth moving device, the net pushing roller device and the thimble device are installed on the net turning up-and-down moving device, a net turning mechanism and a winding mechanism are installed on a net turning platform, the film element can be wound by the winding mechanism, and the film element can be wound and fixed by the tape winding mechanism; the device can realize full automation of the technological processes of hot pressing, gluing, film releasing, net turning, rolling and adhesive tape winding, and improves the film rolling efficiency.)

1. An automatic RO membrane rolling machine is characterized by comprising a membrane rolling preparation platform, a net turning mechanism, a rolling mechanism and a rubber belt winding mechanism, wherein the membrane rolling preparation platform is used for carrying out gluing operation after hot pressing and flattening folded membranes, the net turning mechanism comprises a net pressing cylinder (11), a net pushing cylinder (12), a net pressing support platform (13), a net pushing roller device (15), an ejector pin device (17), a net turning front-back moving device (18) and a net turning up-down moving device (19), the net pressing cylinder (11) is used for pressing a light net, the net pushing cylinder (12) pushes the pressed light net to form an arch, the net pushing roller device (15) and the ejector pin device (17) are matched to clamp the light net, the net turning up-down moving device (19) is slidably mounted in the net turning front-back moving device (18), the net pushing roller device (15) and the ejector pin device (17) are mounted on the net turning up-down moving device (19), the net turning mechanism and the winding mechanism are installed on the net turning platform, the winding mechanism is used for winding membrane elements, and the adhesive tape winding mechanism is used for winding and fixing the membrane elements of the winding mechanism.

2. An RO membrane automatic film rolling machine according to claim 1, characterized in that the web turning mechanism further comprises a lifting cylinder (14) and a flattening platen (16), the lifting cylinder (14) is used for driving the web pressing support table (13), and the flattening platen (16) is used for flattening the web.

3. The automatic RO membrane rolling machine according to claim 2, wherein the membrane rolling preparation platform comprises a hot pressing cylinder (1), an upper hot pressing plate (2), a lower hot pressing plate (3) and an electric heating pipe (6), the upper hot pressing plate (2) is connected with the hot pressing cylinder (1), and the electric heating pipe (6) is respectively arranged in the upper hot pressing plate (2) and the lower hot pressing plate (3).

4. The automatic RO membrane rolling machine according to claim 3, wherein said rolling preparation platform further comprises a membrane positioning plate (4) and a membrane positioning cylinder (5), said membrane positioning plate (4) is used for positioning the membrane left and right, and said membrane positioning cylinder (5) is used for positioning the membrane up and down.

5. The automatic RO membrane rolling machine according to claim 4, wherein the rolling preparation platform further comprises a first membrane transferring clamping jaw (7), a three-axis gluing system (8), a gluing platform (9) and a blank pressing device (10), the first membrane transferring clamping jaw (7) is used for transferring the membrane onto the gluing platform (9), the three-axis gluing system (8) is arranged on the gluing platform (9), and the blank pressing device (10) is arranged on two side edges of the gluing platform (9).

6. The automatic RO membrane rolling machine according to claim 1, wherein the rolling mechanism comprises a spindle nose (24), a rolling top roller (26), a rolling auxiliary top roller (27) and a spindle thimble (28), the spindle thimble (28) is opposite to the spindle nose (24), and the rolling top roller (26) and the rolling auxiliary top roller (27) are used for rolling and leveling membrane elements.

7. An automatic RO membrane rolling machine according to claim 6, characterized by that, the rolling mechanism further includes a membrane rolling shake-and-level device (25) for preventing membrane rolling from wrinkling.

8. The automatic RO film rolling machine according to claim 1, wherein the tape winding mechanism comprises a tape moving device (29), a tape constant tension unwinding device (30), a tape attaching cylinder (31), and an automatic tape breaking cutter (32), the tape constant tension unwinding device (30) is disposed on the tape attaching cylinder (31), the tape attaching cylinder (31) is installed below the tape moving device (29), and the automatic tape breaking cutter (32) is installed at the bottom of the tape constant tension unwinding device (30).

9. An automatic RO membrane rolling machine according to any of claims 1-8, characterized in that the net turning platform is provided with a second membrane sheet transfer clamping jaw (20) and an elongated net clamp (21), and both the second membrane sheet transfer clamping jaw (20) and the elongated net clamp (21) are slidably mounted on the net turning platform.

10. An automatic RO membrane rolling machine according to claim 9, characterized in that the web turning platform is further provided with an angle-adjustable platen (22) and a lamination clamp (23) arranged on both sides of the angle-adjustable platen (22).

Technical Field

The invention relates to the technical field of water purification equipment, in particular to an automatic RO (reverse osmosis) membrane rolling machine.

Background

With the rapid development of social economy in China, the living standard of people is gradually improved, and countries and society pay more and more attention to water source pollution treatment and healthy water, so that the requirements of people on reverse osmosis membrane elements and nanofiltration membrane elements are continuously improved.

In the existing production process of the reverse osmosis membrane element and the nanofiltration membrane element, 2 persons are required to roll the reverse osmosis membrane element and the nanofiltration membrane element, a membrane is manually placed, an adhesive tape is manually wound, a desalination net is manually turned over, the hot pressing function of the membrane crease is avoided, glue application and a desalination net page turning platform are shared, the glue application and desalination net page turning process can be carried out sequentially, equipment is incompatible with 4-inch and 8-inch rolling of the membrane element, and great inconvenience is brought to production of the reverse osmosis membrane element and the nanofiltration membrane element.

Therefore, how to improve the production efficiency of the reverse osmosis membrane element and the nanofiltration membrane element is a technical problem to be solved urgently by the technical personnel in the field.

Disclosure of Invention

The invention aims to provide an automatic RO membrane rolling machine, which optimizes process equipment of a reverse osmosis membrane element and a nanofiltration membrane element, so that the process automation degree of the reverse osmosis membrane element and the nanofiltration membrane element is higher, and the production efficiency of the reverse osmosis membrane element and the nanofiltration membrane element is improved.

In order to solve the technical problems, the invention provides an automatic RO membrane rolling machine, which comprises a membrane rolling preparation platform, a net turning mechanism, a rolling mechanism and a tape winding mechanism, wherein the membrane rolling preparation platform is used for carrying out glue beating operation after membrane sheets are flattened by hot pressing, the net turning mechanism comprises a net pressing cylinder, a net pushing cylinder, a net pressing support table, a net ejecting roller device, a thimble device, a net turning back-and-forth moving device and a net turning up-and-down moving device, the net pressing cylinder is used for pressing a light net, the net pushing cylinder pushes the pressed light net to form an arch, the net ejecting roller device and the thimble device are matched to clamp the light net, the net turning up-and-down moving device is slidably arranged in the net turning back-and-forth moving device, the net ejecting roller device and the thimble device are arranged on the net turning up-and-down moving device, the net turning mechanism and the rolling mechanism are arranged on the net turning platform, the winding mechanism is used for winding the membrane elements, and the adhesive tape winding mechanism is used for winding and fixing the membrane elements of the winding mechanism.

Preferably, the net turning mechanism further comprises a lifting cylinder and a leveling pressing plate, the lifting cylinder is used for driving the net pressing supporting table, and the leveling pressing plate is used for leveling the net.

Preferably, the film rolling preparation platform comprises a hot pressing cylinder, an upper hot pressing plate, a lower hot pressing plate and an electric heating pipe, wherein the upper hot pressing plate is connected with the hot pressing cylinder, and the electric heating pipe is respectively arranged in the upper hot pressing plate and the lower hot pressing plate.

Preferably, the film rolling preparation platform further comprises a membrane positioning plate and a membrane positioning cylinder, wherein the membrane positioning plate is used for positioning the membrane left and right, and the membrane positioning cylinder is used for positioning the membrane up and down.

Preferably, roll up membrane and prepare platform still includes that first diaphragm shifts clamping jaw, triaxial and beats system, beats and glue platform and blank pressing device, first diaphragm shifts clamping jaw is used for shifting the diaphragm to beat and glue on the platform, the triaxial beat glue the system set up in beat and glue on the platform, blank pressing device set up in beat and glue platform both sides limit.

Preferably, the winding mechanism comprises a main shaft head, a winding top roller, a winding auxiliary top roller and a main shaft thimble, the main shaft thimble is opposite to the main shaft head, and the winding top roller and the winding auxiliary top roller are used for enabling the film element to be wound flatly.

Preferably, the rolling mechanism further comprises a film rolling leveling device for preventing the film rolling from wrinkling.

Preferably, the tape winding mechanism comprises a tape moving device, a tape constant-tension unwinding device, a tape attaching cylinder and an automatic tape breaking cutter, wherein the tape constant-tension unwinding device is arranged on the tape attaching cylinder, the tape attaching cylinder is arranged below the tape moving device, and the automatic tape breaking cutter is arranged at the bottom of the tape constant-tension unwinding device.

Preferably, a second film transfer clamping jaw and a net stretching clamp are arranged on the net turning platform, and the second film transfer clamping jaw and the net stretching clamp are both slidably mounted on the net turning platform.

Preferably, the net turning platform is further provided with an angle-adjustable bedplate and film pressing clamps arranged on two sides of the angle-adjustable bedplate.

The automatic RO membrane rolling machine provided by the invention comprises a membrane rolling preparation platform, a net turning mechanism, a rolling mechanism and a rubber belt winding mechanism, wherein the membrane rolling preparation platform is used for carrying out glue beating operation after a membrane is flattened by hot pressing, the net turning mechanism comprises a net pressing cylinder and a net pushing cylinder, the device comprises a net pressing supporting table, a net pushing roller device, a thimble device, a net turning back-and-forth moving device and a net turning up-and-down moving device, wherein a net pressing cylinder is used for pressing a light net, a net pushing cylinder pushes the pressed light net to form an arch, the net pushing roller device and the thimble device are matched to clamp the light net tightly, the net turning up-and-down moving device is installed in the net turning back-and-forth moving device in a sliding mode, the net pushing roller device and the thimble device are installed on the net turning up-and-down moving device, a net turning mechanism and a winding mechanism are installed on a net turning platform, the winding mechanism is used for winding film elements, and a tape winding mechanism is used for winding and fixing the film elements of the winding mechanism. The membrane rolling preparation platform is used for manufacturing the RO membrane, the net turning platform and the net turning mechanism are used for turning the net of the RO membrane, the rolling mechanism is used for rolling the RO membrane, and the adhesive tape winding mechanism winds the RO membrane with an adhesive tape; the net pushing supporting table is lifted to a net pushing position, the net pressing cylinder presses the net, the net pushing cylinder pushes the net to arch, the net turning mechanism is moved to a net taking position by matching the net turning forward-backward moving device and the net turning up-down moving device, a thimble is inserted into the net arch by the thimble device, the net pushing roller device is clamped by matching the thimble device, the net turning forward-backward moving device and the net turning up-down moving device are matched to turn the net to flatly cover the net on the diaphragm, the net turning forward-backward moving device and the net turning up-down moving device return to the original position after finishing the net turning action, the net pushing cylinder returns to push a page of net to arch again, the net pushing roller device and the thimble device return to wait for a next net turning action signal, the process is fully automatic, and the net turning efficiency is greatly improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic view of an overall structure of an RO membrane automatic rolling machine according to the present invention;

FIG. 2 is a schematic diagram of a roll film preparation platform;

FIG. 3 is a schematic structural diagram of a net turning platform;

FIG. 4 is a schematic structural view of a net turning mechanism;

FIG. 5 is a schematic structural view of the winding mechanism;

fig. 6 is a schematic structural view of the tape winding mechanism.

Wherein, in fig. 1 to 6:

a hot-pressing cylinder-1, an upper hot-pressing plate-2, a lower hot-pressing plate-3, a membrane positioning plate-4, a membrane positioning cylinder-5, an electric heating pipe-6, a first membrane transferring clamping jaw-7, a three-axis gluing system-8, a gluing platform-9, a blank holder-10, a net-pressing cylinder-11, a net-pushing cylinder-12, a net-pressing support platform-13, a lifting cylinder-14, a net-pushing roller device-15, a leveling pressing plate-16, a thimble device-17, a net-turning back-and-forth moving device-18, a net-turning up and down moving device-19, a second membrane transferring clamping jaw-20, a long net-stretching clamp-21, an angle-adjustable platen-22, a film-pressing clamp-23, a spindle head-24, a membrane rolling and leveling device-25, a rolling and top roller-26, a rolling auxiliary top roller-27, a spindle head-28, a tape moving device-29, a tape constant tension device-30, a tape-sticking cylinder-31, an automatic tape cutting knife-32.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Please refer to fig. 1 to fig. 6.

In a specific embodiment provided by the invention, the automatic RO membrane rolling machine mainly comprises a membrane rolling preparation platform, a net turning mechanism, a rolling mechanism and a tape winding mechanism, wherein the membrane rolling preparation platform is used for carrying out glue beating operation after hot pressing and flattening a membrane, the net turning mechanism comprises a net pressing cylinder 11, a net pushing cylinder 12, a net pressing support platform 13, a net ejecting roller device 15, a thimble device 17, a net turning back-and-forth moving device 18 and a net turning up-and-down moving device 19, the net pressing cylinder 11 is used for pressing a light net, the net pushing cylinder 12 pushes the pressed light net to form an arch, the net ejecting roller device 15 and the thimble device 17 are matched to clamp the light net, the net turning up-and-down moving device 19 is slidably arranged in the net turning back-and-forth moving device 18, the net ejecting roller device 15 and the thimble device 17 are arranged on the net turning up-and-down moving device 19, the net turning mechanism and the rolling mechanism are arranged on the net turning platform, the winding mechanism is used for winding the membrane elements, and the adhesive tape winding mechanism is used for winding and fixing the membrane elements of the winding mechanism.

Specifically, in the practical application process, the membrane rolling preparation platform is used for manufacturing the RO membrane, the net turning platform and the net turning mechanism are used for turning the net of the RO membrane, the winding mechanism is used for winding the RO membrane, and the adhesive tape winding mechanism winds the RO membrane with the adhesive tape; the net pressing support table 13 rises to a net pushing position, the net pressing cylinder 11 presses the net, the net pushing cylinder 12 pushes the net to arch, the net turning forward and backward moving device 18 and the net turning up and down moving device 19 are matched to move the net turning mechanism to a net taking position, the ejector pins 17 insert the ejector pins into the net arch, the net ejecting roller device 15 is matched with the ejector pins 17 to clamp, the net turning forward and backward moving device 18 and the net turning up and down moving device 19 are matched to perform net turning action, the net is flatly laid on the membrane, the net turning forward and backward moving device 18 and the net turning up and down moving device 19 return to the original position after the net turning action is completed, the net pushing cylinder 12 returns to push a page of net to arch again, the net ejecting roller device 15 and the ejector pins 17 return to wait for the next net turning action signal, the process is fully automatic, and the net turning efficiency is greatly improved.

On the basis of the above-mentioned embodiment, the wire turning mechanism preferably further comprises a lifting cylinder 14 and a flattening press plate 16, wherein the lifting cylinder 14 is used for driving the wire pressing support table 13, and the flattening press plate 16 is used for flattening the wire. The lifting cylinder 14 enables the net pressing support table 13 to move more stably, and the leveling press plate 16 enables the net to be more smooth, so that the process efficiency and the process quality are improved.

It should be noted that, the net turning mechanism is a key mechanism of the application, most of the current film rolling devices are semi-automatic devices, and are mainly limited by the complexity of the net turning action, most of the current automatic net turning devices in the market use robots to turn the net, but the robot scheme has a complex structure and high cost, and cannot be popularized and used.

On the basis of the above embodiment, as a preferable option, the film winding preparation platform includes a hot-pressing cylinder 1, an upper hot-pressing plate 2, a lower hot-pressing plate 3, and an electric heating pipe 6, the upper hot-pressing plate 2 is connected to the hot-pressing cylinder 1, and the electric heating pipe 6 is respectively disposed on the upper hot-pressing plate 2 and the lower hot-pressing plate 3; the film rolling preparation platform further comprises a membrane positioning plate 4 and a membrane positioning cylinder 5, wherein the membrane positioning plate 4 is used for positioning the membrane left and right, and the membrane positioning cylinder 5 is used for positioning the membrane up and down; electric heating pipe 6 will go up hot pressboard 2 and 3 heats of hot pressboard down to setting for the temperature, and diaphragm location cylinder 5 rises, and the diaphragm is placed the setpoint (diaphragm location cylinder 5 and 4 locating positions of diaphragm locating plate), and hot pressing cylinder 1 pushes down, reaches and sets for hot pressing time, and hot pressing cylinder 1 rises, and diaphragm location cylinder 5 descends the return. The process is full-automatic, and the process efficiency and the process quality are improved.

On the basis of the above embodiment, as an optimization, the film winding preparation platform further includes a first film sheet transfer clamping jaw 7, a three-axis gluing system 8, a gluing platform 9 and a blank pressing device 10, wherein the first film sheet transfer clamping jaw 7 is used for transferring the film sheet to the gluing platform 9, the three-axis gluing system 8 is arranged on the gluing platform 9, and the blank pressing device 10 is arranged on two side edges of the gluing platform 9. The first film transfer clamping jaw 7 transfers the film from the hot pressing position to the film gluing position of the gluing platform 9, then the edge pressing device 10 presses the film, the first film transfer clamping jaw 7 returns to the original position, the three-axis gluing system 8 performs gluing work, glue is applied, and the edge pressing device 10 returns to the original position; the process is full-automatic, and the process efficiency and the process quality are improved.

It should be noted that, the three-axis gluing system 8 structure can also realize gluing through the robot, so that the robot has higher gluing precision and higher gluing speed, but the running cost of the robot is also higher. Because the triaxial is beaten system 8 of gluing beat and is glued precision, beat and glue efficiency and can satisfy this equipment demand, and the running cost is lower, so preferentially adopt the triaxial to beat system 8 of gluing and beat the operation of gluing.

On the basis of the above embodiment, as a preferable option, the winding mechanism includes a spindle nose 24, a winding top roller 26, an auxiliary winding top roller 27 and a spindle nose 28, the spindle nose 28 is arranged opposite to the spindle nose 24, and the winding top roller 26 and the auxiliary winding top roller 27 are used for flattening the winding of the membrane elements; the rolling mechanism also comprises a membrane rolling leveling device 25 for preventing the membrane from rolling and wrinkling; the net turning platform is provided with a second film transfer clamping jaw 20 and a lengthened net clamp 21, and the second film transfer clamping jaw 20 and the lengthened net clamp 21 are both arranged on the net turning platform in a sliding mode; the net turning platform is also provided with an angle adjustable bedplate 22 and film pressing clamps 23 arranged at two sides of the angle adjustable bedplate 22. Welding a mesh central pipe: aligning a mesh welding central pipe to a main shaft head 24, tightly pushing the central pipe by a main shaft thimble 28, clamping the fourdrinier wire by a fourdrinier wire clamp 21, returning to a set position, switching to a torsion mode, and straightening the fourdrinier wire by set tension; film releasing action: the second film transfer clamping jaw 20 transfers the film to the position of the angle-adjustable platen 22 for film placing, the film pressing clamp 23 presses the film, the second film transfer clamping jaw 20 returns to the original position, after the upper net turning action is connected, the film pressing clamp 23 is loosened, and the spindle is wound for a set angle; and (3) rolling the membrane element: after the set number of the membranes are placed, the spindle head 24 rotates to roll the components, the auxiliary rolling top roller 27 jacks up at a set position, the rolling top roller 26 jacks up at a set position, the long net clamp 21 loosens long leaves at the set position and automatically returns to the original position after rolling is completed, and the membrane rolling leveling device 25 performs leveling operation at a set frequency during rolling; the process is full-automatic, and the process efficiency and the process quality are improved.

On the basis of the above embodiment, as an optimization, the tape winding mechanism includes a tape moving device 29, a tape constant tension unwinding device 30, a tape attaching air cylinder 31 and an automatic tape breaking cutter 32, the tape constant tension unwinding device 30 is disposed on the tape attaching air cylinder 31, the tape attaching air cylinder 31 is installed below the tape moving device 29, and the automatic tape breaking cutter 32 is installed at the bottom of the tape constant tension unwinding device 30. After the film element is completely wound, the adhesive tape moving device 29 moves to a set position, the adhesive tape cylinder 31 acts to attach the adhesive tape to the film element, the spindle nose 24 rotates to enable the adhesive tape to be wound on the film element, the adhesive tape cylinder 31 returns, the adhesive tape moving device 29 finishes running according to a set winding program, the automatic tape cutting cutter 32 cuts off the adhesive tape, the spindle nose 24 continues to rotate for a set number of turns, and the adhesive tape moving device 29 returns to the original position; the process is full-automatic, and the process efficiency and the process quality are improved.

In summary, the RO membrane automatic rolling machine provided by this embodiment mainly includes a membrane rolling preparation platform, a net turning mechanism, a rolling mechanism and a tape winding mechanism, the membrane rolling preparation platform is used for performing a gluing operation after a membrane is flattened by hot pressing, the net turning mechanism includes a net pressing cylinder and a net pushing cylinder, the device comprises a net pressing supporting table, a net pushing roller device, a thimble device, a net turning back-and-forth moving device and a net turning up-and-down moving device, wherein a net pressing cylinder is used for pressing a light net, a net pushing cylinder pushes the pressed light net to form an arch, the net pushing roller device and the thimble device are matched to clamp the light net tightly, the net turning up-and-down moving device is installed in the net turning back-and-forth moving device in a sliding mode, the net pushing roller device and the thimble device are installed on the net turning up-and-down moving device, a net turning mechanism and a winding mechanism are installed on a net turning platform, the winding mechanism is used for winding film elements, and a tape winding mechanism is used for winding and fixing the film elements of the winding mechanism. The membrane rolling preparation platform is used for hot pressing and gluing of the membrane, the net turning platform and the net turning mechanism are used for net turning of the RO membrane, the winding mechanism is used for winding of the RO membrane, and the adhesive tape winding mechanism winds the RO membrane with adhesive tape; the net pushing supporting table is lifted to a net pushing position, the net pressing cylinder presses the net, the net pushing cylinder pushes the net to arch, the net turning mechanism is moved to a net taking position by matching the net turning forward-backward moving device and the net turning up-down moving device, a thimble is inserted into the net arch by the thimble device, the net pushing roller device is clamped by matching the thimble device, the net turning forward-backward moving device and the net turning up-down moving device are matched to turn the net to flatly cover the net on the diaphragm, the net turning forward-backward moving device and the net turning up-down moving device return to the original position after finishing the net turning action, the net pushing cylinder returns to push a page of net to arch again, the net pushing roller device and the thimble device return to wait for a next net turning action signal, the process is fully automatic, and the net turning efficiency is greatly improved.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.