CN207294981U - A kind of three-way device of opener - Google Patents

Abstract

The utility model discloses a kind of three-way device of opener, it is intended to when solving traditional opener for the problem that compression degree is larger and fluffy degree is poor fiber, it can not realize multiple opener, its key points of the technical solution are that：A kind of three-way device of opener, opener body discharge port is connected with wind turbine, fan outlet end is connected with feed pipe, threeway mechanism is connected between fan outlet and feed pipe, threeway mechanism includes above wind turbine and is connected to the longitudinally fed pipe of fan outlet, is opened in the sub-material mouth of the longitudinally fed pipe side wall, is connected to the sub-feed tube of sub-material mouth, and longitudinally fed pipe is provided with sub-feed tube infall and controls longitudinally fed pipe and the feed-through assembly of sub-feed tube on or off.A kind of three-way device of opener of the utility model, by setting threeway mechanism, realizes the return of raw material, and easy to secondary opener, the fluffy degree and cleannes of fiber in ensure that into subsequent handling, effectively increase the quality of non-woven fabrics.

Description

A kind of three-way device of opener

Technical field

Non-woven fabric production equipment field is the utility model is related to, more specifically, it relates to a kind of threeway dress of opener Put.

Background technology

The main task of opener is that the raw cotton of compression is loosened into less cotton block or flock, is made with profit mixing, removal of impurities It is smoothed out, while removes most of impurity in raw cotton, fault and the staple fiber that should not be spinned, by the original of heterogeneity Cotton fully uniformly mix, with the stabilization of sharp cotton yarn quality.

Existing opener includes inlet port and outlet port, and discharge outlet is provided with wind turbine, and discharge port passes through feeding Pipe is communicated in cotton storage tank and is stored temporarily, after the raw cotton fiber feeding opener for compressing caking, is broken up through opener shredding, The fiber that compression is lumpd is become fluffy, be sent to by feed pipe in cotton storage tank carry out the next step afterwards.But due to having A little raw cotton fiber degree of agglomeration are larger, and the fluffy degree of follow-up work requirement is still unable to reach after opener of opener, So as to influence whether the quality of later stage non-woven fabrics.

Therefore need to propose a kind of new scheme to solve the problems, such as this.

Utility model content

In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of three-way device of opener, Have the advantages that to send out the raw material sub-material that opener body is sent out, be easy to implement the secondary opener of raw material.

The above-mentioned technical purpose of the utility model technical scheme is that：A kind of threeway of opener Device, including opener body, the opener body discharge port are connected with wind turbine, and the fan outlet end is connected with feed pipe, institute State and threeway mechanism is connected between fan outlet and feed pipe, the threeway mechanism includes above wind turbine and is connected to wind turbine The longitudinally fed pipe of outlet, be opened in the sub-material mouth of the longitudinally fed pipe side wall, be connected to the sub-feed tube of the sub-material mouth, institute State longitudinally fed pipe and the feed-through assembly for controlling longitudinally fed pipe and sub-feed tube on or off is provided with sub-feed tube infall.

By using above-mentioned technical proposal, raw material is blown up by wind turbine, on the one hand can be sent to along longitudinally fed pipe It in cotton storage tank, on the other hand can be sent out from sub-material mouth to side, be additionally included in longitudinally fed pipe and set with sub-feed tube infall And for controlling longitudinally fed pipe and the feed-through assembly of sub-feed tube on or off, sub-feed tube can be controlled by feed-through assembly Replace opening and closing with longitudinally fed pipe；In this way, it is preferable in raw fibre fluffy degree, it disclosure satisfy that after opener of opener During following process requirement, sub-feed tube is closed by feed-through assembly, while longitudinally fed pipe is opened, so that by once The fiber of opener can be delivered directly in cotton storage tank；When raw fibre compression degree is poor compared with high-loft, by opener The fluffy degree of needs is still unable to reach after opener of machine, is at this time closed longitudinally fed pipe by feed-through assembly, at the same time will Sub-feed tube is opened, and the fiber sent out by opener is sent out under the blowing of wind turbine by sub-feed tube, is equipped with and is received in sub-feed tube outer cover Fiber can be collected by material bag；Collected fiber is sent into opener after weighing again, and secondary open is carried out by opener Cotton so that fiber is sent in cotton storage tank through feed pipe again after reaching the standard of needs, realizes repeatedly opening to raw fibre Cotton, to reach more preferable opener impurity-eliminating effect, improves the quality of subsequent production non-woven fabrics, and ought only need to fibrous material into During row shredding, longitudinally fed pipe is closed by feed-through assembly sub-feed tube is opened to the exclusive use that opener can be achieved, should With flexible.

The utility model is further arranged to：The feed-through assembly includes being rotatably dispose in sub-material mouth lower edge and for controlling First control assembly of sub-feed tube processed opening and closing, be rotatably dispose in longitudinally fed pipe and for controlling the of longitudinally fed pipe opening and closing Two control assemblies, the longitudinally fed pipe outer wall are provided with the connection that the first control assembly of control and the second control assembly rotate synchronously Dynamic component.

By using above-mentioned technical proposal, linkage unit realizes sub-material mouth by the rotation of the first control assembly of control Open or close, by controlling the rotation of the second control assembly, realize opening or closing for feed pipe, can be with by linkage unit Realize the synchronous rotation of the first control assembly and the second control assembly, be opened and closed so as to fulfill the alternating of sub-feed tube and feed pipe.

The utility model is further arranged to：First control assembly includes being rotatably dispose in the of sub-material mouth lower edge One shaft, the first rotating shaft side wall are fixedly connected with first baffle, and the first baffle is identical with sub-material mouth size, and described One shaft one end stretches out longitudinally fed pipe side wall and is connected to linkage unit.

By using above-mentioned technical proposal, when first rotating shaft rotates, first baffle can be driven to be rotated around first rotating shaft, And it is equal in magnitude due to first baffle and sub-material mouth, when first baffle rotates, it is possible to achieve the opening of sub-material mouth is closed Close.

The utility model is further arranged to：Second control assembly includes being rotatably dispose in longitudinally fed pipe side wall Second shaft, described second shaft one end stretch out longitudinally fed pipe side wall and are connected to linkage unit, the second shaft side wall It is fixedly connected with the area of section that second baffle, the area of the second baffle and the second shaft are formed to sub-material mouth upper edge It is equal.

By using above-mentioned technical proposal, by the rotation of the second shaft, second baffle can be driven to realize and rotated, and The area equation in the section that the area of second baffle and the second shaft are formed to sub-material mouth upper edge, when the second shaft drives the Two flappers and when edge and the sub-material mouth upper edge of second baffle free end are contradicted, i.e. second baffle and the second shaft When the plane formed to sub-material mouth upper edge overlaps, the upward passage of longitudinally fed pipe is closed, consequently facilitating realizing sub-material.

The utility model is further arranged to：The linkage unit includes being fixedly connected on the first of first rotating shaft external part Connecting rod, the second connecting rod for being fixedly connected on the second shaft external part, both ends be rotationally connected with respectively first connecting rod free end and The linkage board of second connecting rod free end, the linkage board are extended with close to one end of first rotating shaft to the direction vertical with linkage board Connecting plate, the longitudinally fed pipe outer wall are rotatably connected to cylinder, the piston rod rotation of the cylinder be connected to connecting plate from By holding.

By using above-mentioned technical proposal, when Telescopic-cylinder, cylinder piston rod drives connecting plate and linkage board to gas It is mobile in front of cylinder, since the both ends of linkage board are hinged with first connecting rod and second connecting rod respectively, when linkage board moves forward When, first connecting rod and second connecting rod can be driven to rotate identical angle to same direction, so as to fulfill first rotating shaft and second turn The linkage of axis.

The utility model is further arranged to：The longitudinally fed pipe side wall offers observation panel, and the observation panel is following Along cover board is hinged with, lock is provided between the cover board upper end and longitudinally fed pipe side wall.

By using above-mentioned technical proposal, when needing to check the material situation in longitudinally fed pipe, lock is opened Detain and rotating plate opens observation panel, consequently facilitating exercising supervision to the feeding situation in longitudinally fed pipe.

The utility model is further arranged to：The packing cloth for improving leakproofness is covered between the observation panel and cover board.

By using above-mentioned technical proposal, the packing cloth for improving leakproofness is covered between observation panel and cover board, this The packing cloth at place can select non-woven fabrics, since wind speed is higher in longitudinally fed pipe, will be influenced if sealing is bad at observation panel Wind pressure in longitudinally fed pipe, in addition, when opening cover board, in order to reduce thrown open due to cover board caused by observation panel The pressure differential in interior outside, is observed opening and then packing cloth slowly being opened certain degree cover board, improves sight Processing safety at Cha Kou.

The utility model is further arranged to：The longitudinally fed pipe outwardly is provided with close to the side wall of the second shaft Protrusion, second shaft are located in protrusion.

By using above-mentioned technical proposal, longitudinally fed pipe on the side wall of the second shaft it is outstanding be provided with it is convex Go out portion, the shape of protrusion is identical with the shape of second baffle, and the second shaft is arranged on the bottom of protrusion, when second baffle turns Move to it is vertical when, the second shaft and second baffle are fitted together into protrusion, so as to reduce to the fiber that conveys from bottom to top Hinder, ensure transfer efficiency.

The utility model is further arranged to：The sub-feed tube outlet is socketed with rewinding bag.

By using above-mentioned technical proposal, fiber can be collected, collected equipped with rewinding bag in sub-feed tube outer cover The fiber to get up is sent into opener after weighing again.

The utility model is further arranged to：The first connecting rod and second connecting rod equal length and parallel.

By using above-mentioned technical proposal, such first connecting rod, second connecting rod, linkage board, first rotating shaft and the second shaft Line can form parallelogram, when linkage board moves, it is ensured that the movement of first connecting rod and second connecting rod is more Rule.

In conclusion the utility model has the advantages that：

First, raw material is blown up by wind turbine, on the one hand it can be sent to along longitudinally fed pipe in cotton storage tank, on the other hand It can be sent out from sub-material mouth to side, be additionally included in longitudinally fed pipe and set with sub-feed tube infall and for controlling longitudinal direction defeated The feed-through assembly of pipe and sub-feed tube on or off is sent, replacing for sub-feed tube and longitudinally fed pipe can be controlled by feed-through assembly Opening and closing；In this way, it is preferable in raw fibre fluffy degree, when disclosure satisfy that following process requirement after opener of opener, lead to Cross feed-through assembly to close sub-feed tube, while longitudinally fed pipe is opened, so that can be straight by the fiber of an opener Connect and be transported in cotton storage tank；When raw fibre compression degree is poor compared with high-loft, after opener of opener still The fluffy degree of needs is unable to reach, is at this time closed longitudinally fed pipe by feed-through assembly, while sub-feed tube is opened, by opener The fiber that machine is sent out is sent out under the blowing of wind turbine by sub-feed tube, can carry out fiber equipped with rewinding bag in sub-feed tube outer cover Collect；Collected fiber is sent into opener after weighing again, carries out secondary opener by opener so that fiber reaches needs Standard after be sent to again through feed pipe in cotton storage tank, the multiple opener to raw fibre is realized, to reach more preferable opener Impurity-eliminating effect, improves the quality of subsequent production non-woven fabrics, and when only needing to carry out shredding to fibrous material, passes through conducting group Part, which closes longitudinally fed pipe, opens sub-feed tube the exclusive use that opener can be achieved, using flexible；

Second, when Telescopic-cylinder, cylinder piston rod drives connecting plate and linkage board to movement in front of cylinder, due to connection The both ends of movable plate are hinged with first connecting rod and second connecting rod respectively, therefore when linkage board moves forward, can drive first connecting rod With second connecting rod to the identical angle of same direction rotation, so as to fulfill the linkage of first rotating shaft and the second shaft；

Third, being covered with the packing cloth for improving leakproofness between observation panel and cover board, packing cloth herein can select With non-woven fabrics, since wind speed is higher in longitudinally fed pipe, if sealing the bad wind that will be influenced in longitudinally fed pipe at observation panel Pressure, in addition, when opening cover board, in order to reduce thrown open due to cover board caused by observation mouth inner and outer side pressure differential, Observed opening and then packing cloth slowly being opened certain degree cover board, improve the operation peace at observation panel Quan Xing.

Brief description of the drawings

Fig. 1 is the overall structure diagram of the utility model；

Fig. 2 is the internal structure schematic diagram of threeway mechanism；

Fig. 3 is the structure diagram of linkage unit；

Fig. 4 is the structure diagram of observation panel.

In figure：1st, opener body；2nd, wind turbine；3rd, feed pipe；4th, threeway mechanism；5th, longitudinally fed pipe；6th, sub-material mouth；7th, divide Expects pipe；8th, feed-through assembly；9th, the first control assembly；10th, the second control assembly；11st, linkage unit；12nd, first rotating shaft；13rd, One baffle；14th, the second shaft；15th, second baffle；16th, first connecting rod；17th, second connecting rod；18th, linkage board；19th, connecting plate； 20th, cylinder；21st, observation panel；22nd, cover board；23rd, latch；24th, packing cloth；25th, protrusion.

Embodiment

With reference to the accompanying drawings and examples, the utility model is described in detail.

A kind of three-way device of opener, as shown in Figure 1, including opener body 1, opener body 1 herein is tradition Opener, including feed end and discharge end are connected with wind turbine 2, and the air outlet of wind turbine 2 in the discharge port of opener body 1 Set upward, the air outlet of wind turbine 2 is connected with feed pipe 3, and feed pipe 3 is connected in cotton storage tank to be stored temporarily, so as into Row the next step, is provided with threeway mechanism 4 between wind turbine 2 and feed pipe 3.

As depicted in figs. 1 and 2, threeway mechanism 4 includes positioned at the top of wind turbine 2 and is connected to the longitudinally fed of the outlet of wind turbine 2 Pipe 5, the sub-material mouth 6 for being opened in longitudinally fed 5 side wall of pipe, the sub-feed tube 7 for being connected to sub-material mouth 6, raw material are blown upwards by wind turbine 2 Send, on the one hand can be sent to along longitudinally fed pipe 5 in cotton storage tank, on the other hand can be sent out from sub-material mouth 6 to side；Also wrap Include and set in longitudinally fed pipe 5 and 7 infall of sub-feed tube and for controlling longitudinally fed pipe 5 and 7 on or off of sub-feed tube Feed-through assembly 8, replace opening and closing by what feed-through assembly 8 can control sub-feed tube 7 and longitudinally fed pipe 5；It is in this way, fine in raw material It is preferable to tie up fluffy degree, when disclosure satisfy that following process requirement after 1 openers of opener body, will be divided by feed-through assembly 8 Expects pipe 7 is closed, while longitudinally fed pipe 5 is opened, so that can be delivered directly to storage cotton by the fiber of an opener In case；When raw fibre compression degree is poor compared with high-loft, being still unable to reach after 1 openers of opener body needs The fluffy degree wanted, is at this time closed longitudinally fed pipe 5 by feed-through assembly 8, while sub-feed tube 7 is opened, and is sent by opener body 1 The fiber gone out is sent out under the blowing of wind turbine 2 by sub-feed tube 7, can carry out fiber equipped with rewinding bag in 7 outer cover of sub-feed tube Collect；Collected fiber is sent into opener body 1 after weighing again, carries out secondary opener by opener body 1 so that fiber reaches It is sent to again through feed pipe 3 in cotton storage tank after to the standard of needs, realizes the multiple opener to raw fibre, reaches more preferable Opener impurity-eliminating effect, improve subsequent production non-woven fabrics quality, and when only need to fibrous material carry out shredding when, pass through Feed-through assembly 8, which closes longitudinally fed pipe 5, opens sub-feed tube 7 exclusive use that opener can be achieved, using flexible.

As shown in Fig. 2, feed-through assembly 8 includes what is be rotatably dispose in 6 lower edge of sub-material mouth and be opened and closed for controlling sub-feed tube 7 First control assembly 9, be rotatably dispose in longitudinally fed pipe 5 and be used for the second control assembly for controlling longitudinally fed pipe 5 to be opened and closed 10, longitudinally fed 5 outer wall of pipe is provided with the linkage unit that the first control assembly 9 of control and the second control assembly 10 rotate synchronously 11, linkage unit 11 realizes opening or closing for sub-material mouth 6, passes through control second by the rotation of the first control assembly 9 of control The rotation of control assembly 10, realizes opening or closing for feed pipe 3, and the first control assembly 9 can be realized by linkage unit 11 With the synchronous rotation of the second control assembly 10, it is opened and closed so as to fulfill the alternating of sub-feed tube 7 and feed pipe 3.

As shown in Fig. 2, the first control assembly 9 includes the first rotating shaft that 6 lower edge of sub-material mouth is rotatably connected on by bearing 12,12 side wall of first rotating shaft is fixedly connected with first baffle 13, and first baffle 13 is identical with 6 size of sub-material mouth, first rotating shaft 12 Longitudinally fed 5 side wall of pipe is stretched out in one end, so when first rotating shaft 12 rotates, can drive first baffle 13 around first rotating shaft 12 Rotate, and it is equal in magnitude due to first baffle 13 and sub-material mouth 6, when first baffle 13 rotates, it is possible to achieve sub-material mouth 6 Open or close.

As shown in Fig. 2, the second control assembly 10 includes second turn that longitudinally fed 5 side wall of pipe is rotatably dispose in by bearing Longitudinally fed 5 side wall of pipe is stretched out in axis 14,14 one end of the second shaft, and 14 side wall of the second shaft is fixedly connected with second baffle 15, the The area of two baffles 15 is equal with the area of section that the second shaft 14 is formed to 6 upper edge of sub-material mouth, passes through the second shaft 14 Rotation, second baffle 15 can be driven to realize and rotated, and the area of second baffle 15 and the second shaft 14 are on sub-material mouth 6 The area equation in the section that edge is formed, when the second shaft 14 drives second baffle 15 to rotate and causes second baffle 15 freely When the edge at end is contradicted with 6 upper edge of sub-material mouth, i.e., 15 and second shaft 14 of second baffle is formed to 6 upper edge of sub-material mouth When plane overlaps, the upward passage of longitudinally fed pipe 5 is closed, consequently facilitating realizing sub-material；In longitudinally fed pipe 5 close to second Outstanding on the side wall of shaft 14 to be provided with protrusion 25, the shape of protrusion 25 is identical with the shape of second baffle 15, the Two shafts 14 are arranged on the bottom of protrusion 25, when second baffle 15 turns to vertical, the second shaft 14 and second baffle 15 are fitted together into protrusion 25, so as to reduce the obstruction of the fiber to conveying from bottom to top, ensure transfer efficiency.

As shown in Figures 2 and 3, longitudinally fed 5 side wall of pipe is stretched out in one end of first rotating shaft 12, the second shaft 14 and second turn The identical one end of axis 14 is stretched out longitudinally fed 5 side wall of pipe and is set, and 12 and second shaft 14 of first rotating shaft is arranged in parallel, linkage Component 11 includes being fixedly connected on the first connecting rod 16 of 12 external part of first rotating shaft, is fixedly connected on 14 external part of the second shaft Second connecting rod 17, both ends are rotationally connected with the linkage board 18 of 17 free end of 16 free end of first connecting rod and second connecting rod respectively, Linkage board 18 is integrally extended with connecting plate 19 close to one end of first rotating shaft 12 to the direction vertical with linkage board 18, longitudinally fed 5 outer wall of pipe is rotatably connected to cylinder 20, and the piston rod rotation of cylinder 20 is connected to the free end of connecting plate 19；So when cylinder 20 When flexible, 20 piston rod of cylinder drives connecting plate 19 and linkage board 18 mobile to the front of cylinder 20, due to the two of linkage board 18 End is hinged with first connecting rod 16 and second connecting rod 17 respectively, therefore when linkage board 18 moves forward, can drive first connecting rod 16 With second connecting rod 17 to the identical angle of same direction rotation, so as to fulfill the linkage of 12 and second shaft 14 of first rotating shaft；And And first connecting rod 16 and 17 length of second connecting rod are identical and parallel, such first connecting rod 16, second connecting rod 17, linkage board 18, The line of one shaft 12 and the second shaft 14 can form parallelogram, when linkage board 18 moves, it is ensured that first connects The movement of bar 16 and second connecting rod 17 is more synchronous and regular.

As shown in figure 4, offering observation panel 21 in longitudinally fed 5 side wall of pipe, 21 lower edge of observation panel is hinged with cover board 22, Be provided with lock 23 between 5 side wall of 22 upper end of cover board and longitudinally fed pipe, when need to the material situation in longitudinally fed pipe 5 into When row checks, open lock 23 and rotating plate 22 opens observation panel 21, consequently facilitating to the feeding feelings in longitudinally fed pipe 5 Condition exercises supervision；The packing cloth 24 for improving leakproofness is covered between observation panel 21 and cover board 22, packing cloth 24 herein Non-woven fabrics can be selected, since wind speed is higher in longitudinally fed pipe 5, if at observation panel 21 seal it is bad will influence it is longitudinally fed Wind pressure in pipe 5, in addition, when opening cover board 22, in order to reduce thrown open due to cover board 22 caused by observation panel 21 The pressure differential in interior outside, is observed being opened cover board 22 and then packing cloth 24 slowly being opened certain degree, is improved Processing safety at observation panel 21.

The above is only the preferred embodiment of the utility model, and the scope of protection of the utility model is not limited merely to Above-described embodiment, all technical solutions belonged under the utility model thinking belong to the scope of protection of the utility model.It should refer to Go out, for those skilled in the art, some improvement under the premise of the utility model principle is not departed from and Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.

Claims (10)

1. a kind of three-way device of opener, including opener body (1), opener body (1) discharge port is connected with wind turbine (2), wind turbine (2) port of export is connected with feed pipe (3), it is characterised in that：The wind turbine (2) outlet and feed pipe (3) it Between be connected with threeway mechanism (4), the threeway mechanism (4) includes above wind turbine (2) and is connected to the vertical of wind turbine (2) outlet To delivery pipe (5), it is opened in the sub-material mouth (6) of longitudinally fed pipe (5) side wall, is connected to the sub-material of the sub-material mouth (6) Manage (7), the longitudinally fed pipe (5) is provided with the longitudinally fed pipe (5) of control with sub-feed tube (7) infall and is led with sub-feed tube (7) Logical or cut-off feed-through assembly (8).

A kind of 2. three-way device of opener according to claim 1, it is characterised in that：The feed-through assembly (8) includes It is rotatably dispose in sub-material mouth (6) lower edge and for controlling the first control assembly (9) of sub-feed tube (7) opening and closing, being rotatably dispose in Longitudinally fed pipe (5) is interior and is used for the second control assembly (10) for controlling longitudinally fed pipe (5) to be opened and closed, the longitudinally fed pipe (5) outer wall is provided with the linkage unit (11) that the first control assembly of control (9) and the second control assembly (10) rotate synchronously.

A kind of 3. three-way device of opener according to claim 2, it is characterised in that：First control assembly (9) First rotating shaft (12) including being rotatably dispose in sub-material mouth (6) lower edge, first rotating shaft (12) side wall are fixedly connected with One baffle (13), the first baffle (13) is identical with sub-material mouth (6) size, and it is defeated that longitudinal direction is stretched out in described first rotating shaft (12) one end Send pipe (5) side wall and be connected to linkage unit (11).

A kind of 4. three-way device of opener according to claim 3, it is characterised in that：Second control assembly (10) The second shaft (14) including being rotatably dispose in longitudinally fed pipe (5) side wall, it is defeated that longitudinal direction is stretched out in described second shaft (14) one end Send pipe (5) side wall and be connected to linkage unit (11), the second shaft (14) side wall is fixedly connected with second baffle (15), institute State the area of second baffle (15) and area of section that the second shaft (14) is formed to sub-material mouth (6) upper edge is equal.

A kind of 5. three-way device of opener according to claim 4, it is characterised in that：The linkage unit (11) includes It is fixedly connected on the first connecting rod (16) of first rotating shaft (12) external part, is fixedly connected on the second of the second shaft (14) external part Connecting rod (17), both ends are rotationally connected with the linkage board of first connecting rod (16) free end and second connecting rod (17) free end respectively (18), the linkage board (18) is extended with connecting plate close to one end of first rotating shaft (12) to the direction vertical with linkage board (18) (19), longitudinally fed pipe (5) outer wall is rotatably connected to cylinder (20), and the piston rod rotation of the cylinder (20) is connected to company The free end of fishplate bar (19).

A kind of 6. three-way device of opener according to claim 2, it is characterised in that：Longitudinally fed pipe (5) side Wall offers observation panel (21), and observation panel (21) lower edge is hinged with cover board (22), cover board (22) upper end and longitudinal direction Lock (23) is provided between delivery pipe (5) side wall.

A kind of 7. three-way device of opener according to claim 6, it is characterised in that：The observation panel (21) and cover board (22) packing cloth (24) for improving leakproofness is covered between.

A kind of 8. three-way device of opener according to claim 4, it is characterised in that：The longitudinally fed pipe (5) is leaned on The side wall of nearly second shaft (14) is outwardly to be provided with protrusion (25), and second shaft (14) is located at protrusion (25) It is interior.

A kind of 9. three-way device of opener according to claim 1, it is characterised in that：The sub-feed tube (7) goes out muzzle It is connected to rewinding bag.

A kind of 10. three-way device of opener according to claim 5, it is characterised in that：The first connecting rod (16) and Second connecting rod (17) equal length and parallel.