CN218928614U

CN218928614U - PVC membrane blowing mechanism

Info

Publication number: CN218928614U
Application number: CN202222638177.7U
Authority: CN
Inventors: 王浩; 陈庆; 黄柏栋
Original assignee: Shifang Tiancai Printing Co ltd
Current assignee: Shifang Tiancai Printing Co ltd
Priority date: 2022-10-09
Filing date: 2022-10-09
Publication date: 2023-04-28
Anticipated expiration: 2032-10-09

Abstract

The utility model relates to the technical field of PVC film blowing and discloses a PVC film blowing mechanism, which comprises a shell, a material pipe, a connecting part, a sleeve and a liner pipe, wherein a valve breathing component for air intake and exhaust is arranged on the wall surface of the connecting part, the air pressure in a closed space formed by the connecting part and the sleeve pipe is increased, a sealing plate is pushed to overturn in a ventilation window by air, the sealing plate pushes a push rod to displace relative to a mounting plate, the air flows out from a gap between the sealing plate and the connecting part, and if negative pressure is generated in the space formed by the connecting part and the sleeve pipe, the space formed by the connecting part and the sleeve pipe is relatively open, and on the basis of realizing blowing, when blowing is stopped, the space formed by the connecting part and the sleeve pipe is closed, dust fall is reduced, the ventilation window can be conveniently overhauled and installed by being opened manually, the ventilation window can also be opened automatically, the practicability is high, and the flexibility is high.

Description

PVC membrane blowing mechanism

Technical Field

The utility model relates to the technical field of pleurotus geesteranus production and processing, in particular to a PVC film blowing mechanism.

Background

The prior art has disclosed a PVC membrane film blowing mechanism (CN 201922372398.2) through retrieving, including PVC membrane film blowing mechanism, the shower nozzle, be equipped with the bushing pipe on PVC membrane film blowing mechanism, connecting pipe, the inflation film passageway, high-pressure air pump, the air duct, the support frame, the stay tube, the protective sleeve, the shower nozzle, the threaded connection mouth, the flange, the discharge port, be equipped with the shower nozzle on PVC membrane film blowing mechanism, the outside of shower nozzle is equipped with the inflation film passageway, the top of inflation film passageway is connected with high-pressure air pump through the air duct, be equipped with the stay tube under the shower nozzle, the outside of stay tube is equipped with the protective sleeve, the protective sleeve is installed in the outside of stay tube, protect the cooling to the PVC mould that blows, avoid the contamination of dust, the device reasonable in design, and simple structure, inflation film efficiency is high, effectively avoid dust and the film solidification that does not solidify;

in the prior art, the end parts of the stay tube and the stay tube are arranged in an open mode, so that air is discharged and flows during blowing operation, however, when blowing is stopped, dust is easy to fall off due to the open position, and when soot blowing operation is performed next time, dust is easy to adhere to the film formed by cooling.

For this purpose, we propose a PVC film blowing mechanism.

Disclosure of Invention

The utility model mainly solves the technical problems in the prior art and provides a PVC film blowing mechanism.

In order to achieve the above purpose, the PVC film blowing mechanism comprises a shell, a material pipe, a connecting part, a sleeve and a liner pipe, wherein the material pipe is fixedly connected with the shell, the connecting part is fixedly connected with the shell, the sleeve is fixedly connected with the connecting part, an air pump is arranged in a hollow cavity of the shell, the liner pipe is fixedly connected with an output end of the air pump, round holes are formed in the wall surface of the liner pipe at equal intervals, a valve breathing component for air intake and exhaust is arranged on the wall surface of the connecting part, the valve breathing component comprises a ventilation window, a sealing plate, a limiting plate, a mounting plate and a push rod, the wall surface of the connecting part is provided with a ventilation window for mounting the sealing plate, the sealing plate is positioned in the ventilation window and is rotationally connected with the connecting part, the wall surface of the connecting part is fixedly connected with the limiting plate for limiting the sealing plate, the mounting plate is fixedly connected with the connecting part, and the push rod is elastically connected with the mounting plate and is attached to the sealing plate.

Further, the wall surface of the connecting part is symmetrically provided with two identical sealing plates, the rotation directions of the two sealing plates are reversely arranged, and the connecting part is in a hollow round table shape.

Further, the fan-shaped block of the sealing plate and the ventilation window are fan-shaped grooves matched with the sealing plate.

Further, the limiting plates are rectangular blocks, the wall surfaces of the two sealing plates are fixedly connected with the same limiting plates, one limiting plate is fixedly connected with the outer cambered surface of the sealing plate, and the other limiting plate is fixedly connected with the inner concave surface of the other sealing plate.

Further, the valve breathing component further comprises an inner sliding groove and a spring, the inner sliding groove is formed in the wall surface of the mounting plate, the push rod is slidably connected with the inner sliding groove, and the spring is located in the inner sliding groove and fixedly connected with the push rod.

Further, the mounting panel is the arc, and interior spout is arc groove and interior spout and mounting panel are concentric, and the push rod is the arc body of rod with interior spout adaptation, the one end and the mounting panel internal face fixed connection of spring and the terminal surface fixed connection of the other end and the push rod of spring, and the interior concave surface of connecting portion sets up the same mounting panel and push rod and is used for promoting another closing plate and ventilation window laminating, and the rubber circle is all installed to the border position of two closing plates.

Advantageous effects

The utility model provides a PVC film blowing mechanism. The beneficial effects are as follows:

(1) This PVC membrane inflation film manufacturing machine constructs, through running through confined sleeve pipe with the bushing pipe and being connected with the air pump, in the in-process of blowing, the air pressure in the airtight space that connecting portion and sleeve pipe are constituteed rises, the gas promotes the closing plate upset in the window of taking a breath, the closing plate promotes the relative mounting panel displacement of push rod, gaseous follow closing plate and the clearance outflow of connecting portion, if produce the negative pressure in the space that connecting portion and sleeve pipe formed, another closing plate is to the centre of a circle direction upset of connecting portion, external gas flows in the space of connecting portion and sleeve pipe from another closing plate and connecting portion, realize breathing formula's the open space of relative connecting portion and sleeve pipe formation, on the basis that can realize blowing, when stopping blowing, the space that connecting portion and sleeve pipe formed is sealed, reduce the ash fall, be convenient for overhaul and installation through the window of taking a breath that can open, the window of taking a breath can also open by hand, the practicality is strong, the flexible degree is high.

(2) This PVC membrane inflation film manufacturing machine constructs, at closing plate upset in-process, the closing plate promotes the push rod and slides and compress spring in interior spout, realizes that the closing plate is automatic overturned and resets, and the cooperation limiting plate places the closing plate and overturns excessively, and the stability of operation is high, and the opening and closing manual intervention of window of taking a breath is few, and degree of automation is high.

Drawings

The structures, proportions, sizes, etc. shown in this description are for illustration purposes only and are not intended to limit the scope of the utility model, which is otherwise, used by those skilled in the art to which this utility model pertains.

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a perspective view of an inventive seal plate and pushrod;

fig. 3 is a horizontal cross-sectional view of the mounting plate of the utility model.

Legend description:

10. a housing; 11. a material pipe; 12. a connection part; 13. a sleeve; 14. a liner tube; 20. a ventilation window; 21. a sealing plate; 22. a limiting plate; 23. a mounting plate; 24. a push rod; 30. an inner chute; 31. and (3) a spring.

Detailed Description

1-2, the PVC film blowing mechanism comprises a shell 10, a material pipe 11, a connecting part 12, a sleeve 13 and a liner pipe 14, wherein the material pipe 11 is fixedly connected with the shell 10, the connecting part 12 is fixedly connected with the shell 10, the sleeve 13 is fixedly connected with the connecting part 12, an air pump is arranged in a hollow cavity of the shell 10, the liner pipe 14 is fixedly connected with an output end of the air pump, round holes are formed in the wall surface of the liner pipe 14 at equal intervals, a valve breathing component for air inlet and exhaust is arranged on the wall surface of the connecting part 12, the valve breathing component comprises a ventilation window 20, a sealing plate 21, a limiting plate 22, a mounting plate 23 and a push rod 24, the wall surface of the connecting part 12 is provided with a ventilation window 20 for mounting the sealing plate 21, the sealing plate 21 is positioned in the ventilation window 20 and is rotationally connected with the connecting part 12, the wall surface of the connecting part 12 is fixedly connected with a limiting plate 22 for limiting the sealing plate 21, the mounting plate 23 is fixedly connected with the connecting part 12, the push rod 24 is elastically connected with the mounting plate 23, the push rod 24 is attached to the sealing plate 21, two identical sealing plates 21 are symmetrically arranged on the wall surface of the connecting part 12, the rotation directions of the two sealing plates 21 are reversely arranged, the connecting part 12 is in a hollow round table shape, the fan-shaped block of the sealing plate 21 is provided, the ventilation window 20 is a fan-shaped groove matched with the sealing plate 21, the limiting plates 22 are rectangular blocks, the wall surfaces of the two sealing plates 21 are fixedly connected with the same limiting plates 22, one limiting plate 22 is fixedly connected with the outer cambered surface of the sealing plate 21, the other limiting plate 22 is fixedly connected with the inner concave surface of the other sealing plate 21, the liner tube 14 penetrates through the sealed sleeve 13 to be connected with the air pump, in the blowing process, the air pressure in the sealed space formed by the connecting part 12 and the sleeve 13 is increased, the air pushes the sealing plate 21 to turn in the ventilation window 20, the sealing plate 21 pushes the push rod 24 to displace relative to the mounting plate 23, gas flows out from the gap between the sealing plate 21 and the connecting part 12, negative pressure is generated in the space formed by the connecting part 12 and the sleeve 13, the other sealing plate 21 turns over towards the center direction of the connecting part 12, external gas flows into the space between the connecting part 12 and the sleeve 13 from the gap between the other sealing plate 21 and the connecting part 12, respiratory ventilation is realized, and the space formed by the connecting part 12 and the sleeve 13 is closed on the basis that air blowing can be realized.

1-3, the valve respiratory part still includes interior spout 30 and spring 31, interior spout 30 is seted up to the wall of mounting panel 23, push rod 24 and interior spout 30 sliding connection, spring 31 is located interior spout 30 and spring 31 and push rod 24 fixed connection, mounting panel 23 is the arc, interior spout 30 is the arc groove and interior spout 30 is concentric with mounting panel 23, push rod 24 is the arc body of rod with interior spout 30 adaptation, the one end and the mounting panel 23 internal wall fixed connection of spring 31 and the other end and the terminal surface fixed connection of push rod 24 of spring 31, the concave surface setting of connecting portion 12 is the same mounting panel 23 and push rod 24 are used for promoting another closing plate 21 and laminating with ventilation window 20, the rubber circle is all installed to the border position of two closing plates 21, on the basis of realizing above-mentioned effect, in closing plate 21 upset in-process, closing plate 21 promotes push rod 24 and slides and compresses spring 31 in interior spout 30, realize closing plate 21 automatic upset and reset, cooperation limiting plate 22 places closing plate 21 and overturns excessively, the stability of operation is high, the manual intervention is few, degree of automation is high.

The working principle of the utility model is as follows: the liner tube 14 penetrates through the sealed sleeve 13 to be connected with the air pump, in the blowing process, the air pressure in the sealed space formed by the connecting part 12 and the sleeve 13 is increased, the air pushes the sealing plate 21 to overturn in the ventilation window 20, the sealing plate 21 pushes the push rod 24 to slide in the inner chute 30 and compress the spring 31, the sealing plate 21 pushes the push rod 24 to displace relative to the mounting plate 23, the air flows out from the gap between the sealing plate 21 and the connecting part 12, if negative pressure is generated in the space formed by the connecting part 12 and the sleeve 13, the other sealing plate 21 overturns towards the center direction of the connecting part 12, the external air flows into the space between the connecting part 12 and the sleeve 13 from the gap between the other sealing plate 21 and the connecting part 12, the ventilation is realized, and the ventilation window 20 can be opened manually or automatically.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims

1. The utility model provides a PVC membrane inflation film manufacturing mechanism, includes casing (10), material pipe (11), connecting portion (12), sleeve pipe (13) and bushing pipe (14), material pipe (11) and casing (10) fixed connection, connecting portion (12) and casing (10) fixed connection, sleeve pipe (13) and connecting portion (12) fixed connection, the air pump is installed to the inside cavity of casing (10) and the intracavity of casing (10), bushing pipe (14) and air pump output fixed connection, the round hole is seted up to the wall equidistance of bushing pipe (14), its characterized in that: the wall of connecting portion (12) sets up the valve respiratory component that is used for intaking and exhausting, valve respiratory component includes window of taking a breath (20), closing plate (21), limiting plate (22), mounting panel (23) and push rod (24), window of taking a breath (20) that are used for installing closing plate (21) are seted up to the wall of connecting portion (12), and closing plate (21) are located window of taking a breath (20) and closing plate (21) are connected with connecting portion (12) rotation, and wall fixed connection of connecting portion (12) is used for limiting plate (22) of limiting closing plate (21), mounting panel (23) and connecting portion (12) fixed connection, push rod (24) and mounting panel (23) elastic connection and push rod (24) laminating with closing plate (21).

2. A PVC film blowing mechanism as in claim 1, wherein: the wall surface of the connecting part (12) is symmetrically provided with two identical sealing plates (21), the rotation directions of the two sealing plates (21) are reversely arranged, and the connecting part (12) is in a hollow round table shape.

3. A PVC film blowing mechanism as in claim 2, wherein: the fan-shaped block of the sealing plate (21) and the ventilation window (20) are fan-shaped grooves matched with the sealing plate (21).

4. A PVC film blowing mechanism as in claim 3, wherein: the limiting plates (22) are rectangular blocks, the same limiting plates (22) are fixedly connected to the wall surfaces of the two sealing plates (21), one limiting plate (22) is fixedly connected with the outer cambered surface of the sealing plate (21), and the other limiting plate (22) is fixedly connected with the inner concave surface of the other sealing plate (21).

5. A PVC film blowing mechanism as in claim 1, wherein: the valve breathing component further comprises an inner sliding groove (30) and a spring (31), the inner sliding groove (30) is formed in the wall surface of the mounting plate (23), the push rod (24) is slidably connected with the inner sliding groove (30), the spring (31) is located in the inner sliding groove (30), and the spring (31) is fixedly connected with the push rod (24).

6. The PVC film blowing mechanism of claim 5, wherein: the mounting panel (23) is the arc, and interior sliding tray (30) are arc groove and interior sliding tray (30) concentric with mounting panel (23), and push rod (24) be the arc body of rod with interior sliding tray (30) adaptation, the one end of spring (31) and mounting panel (23) internal face fixed connection and the other end of spring (31) and the terminal surface fixed connection of push rod (24), the interior concave surface of connecting portion (12) sets up the mounting panel (23) and push rod (24) the same and is used for promoting another closing plate (21) and laminating of take a breath window (20), and the rubber circle is all installed to the border position of two closing plates (21).