CN111661718A

CN111661718A - Convex key type inflatable shaft

Info

Publication number: CN111661718A
Application number: CN202010654373.6A
Authority: CN
Inventors: 李明秀
Original assignee: 李明秀
Current assignee: ANHUI ZHELE ELECTROMECHANICAL Co.,Ltd.
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2020-09-15
Anticipated expiration: 2040-07-09
Also published as: CN111661718B

Abstract

The invention relates to the technical field of printing equipment and discloses a convex key type inflatable shaft which comprises a shaft body, wherein key strips are uniformly and movably sleeved on the outer wall of the shaft body, an air inlet shaft is fixedly arranged at the center inside the shaft body, a spiral rotating shaft is movably arranged in the middle of the air inlet shaft, a penetrating air outlet hole is formed in the inner wall of the air inlet shaft, an air bag is fixedly arranged on the outer ring of the air inlet shaft, the bottom of each key strip is fixedly connected with a telescopic ejector block, a jacking adjusting block is movably sleeved on the inner wall of the shaft body, a stress rod is movably arranged at the bottom inside the jacking adjusting block, a limiting sliding groove is formed in the position, between two adjacent key strips, of the inner wall of the shaft body, a pressing spring is fixedly connected to the top wall inside the limiting sliding groove, a protecting block is movably sleeved at the bottom end of the limiting sliding groove, and the protecting block, the jacking adjusting block and the stress rod are matched with, the inflatable shaft has long service life and good inflatable effect.

Description

Convex key type inflatable shaft

Technical Field

The invention relates to the technical field of printing equipment, in particular to a convex key type air inflation shaft.

Background

The paper that the in-process at the printing paper is because the paper that makes is a lot of very long, consequently need carry out collection device, just need use the physiosis axle at this moment, it is the axle that winding and unwinding machinery used, and it utilizes the gasbag to expand the key strip protrusion in the axle body for fixed paper, and its principle simple structure is very welcome in the printing trade, but still has some problems:

1. the key strips are pushed out by using the whole air bag in the existing inflatable shaft, the situation that the stress of each part is uneven can be caused by pushing the harder key strips by using the soft air bag, because the surface area of the air bag is larger than that of the key strips, a plurality of air bags and key strip gaps exist, the air bag is folded and bent at the gaps, the air bag cannot be used for a long time and needs to be replaced, and the service life of the air bag is short;

2. the inflation of gasbag is gone on in one end, because the effect of atmospheric pressure when aerifing in the reality, atmospheric pressure changes from one end to the other end, will cause the both ends of every keybar like this and not receive same pressure simultaneously, because there is certain clearance between keybar and the axis body like this, will cause the keybar to take place both ends highly different to will cause the damage and can't use and then extravagant to epaxial winding paper, still influenced the efficiency of papermaking simultaneously.

Disclosure of Invention

Aiming at the defects of the background technology, the invention provides the convex key type inflatable shaft which has the advantages of long service life and good inflatable effect, and solves the problems in the background technology.

The invention provides the following technical scheme: a convex key type inflatable shaft comprises a shaft body, a roller shaft is fixedly arranged at the end part of the shaft body, an air nozzle is arranged at one end of the shaft body, which is positioned on the roller shaft, a key strip is uniformly and movably sleeved on the outer wall of the shaft body, an air inlet shaft is fixedly arranged at the center inside the shaft body, a spiral rotating shaft is movably arranged in the middle of the air inlet shaft, the inner wall of the air inlet shaft is provided with a through air outlet hole, the outer ring of the air inlet shaft is fixedly provided with an air bag, the bottom of the key bar is fixedly connected with a telescopic ejector block, the inner wall of the shaft body, which is positioned at the bottom of the telescopic ejector block, is movably sleeved with an ejection adjusting block, the bottom of the inside of the jacking adjusting block is movably provided with a stress rod, the inner wall of the shaft body is provided with a limiting sliding groove at the position between two adjacent key strips, the top wall inside the limiting sliding groove is fixedly connected with a pressing spring, and the bottom end of the limiting sliding groove is movably sleeved with a protection block.

Preferably, the middle part movable mounting of atress pole has the axis of rotation and moves through the axis of rotation and push up and realize the rotation effect between the regulating block, the hydraulic pressure oil pocket has been seted up at the both ends that the regulating block bottom was moved in the top, flexible chamber has been seted up to the inside symmetry that pushes up the regulating block both ends, two inclined holes have been seted up at the middle part that the regulating block was moved in the top, flexible intracavity portion has cup jointed the slider by outer one end activity, the slider leans on interior one end fixedly connected with reset spring.

Preferably, the keybar is installed in an annular trisection mode, the width of the top section of the telescopic top block is larger than that of the bottom of the telescopic top block, the diameter of the middle section of the inner portion of the limiting sliding groove is larger than that of the two ends of the limiting sliding groove, the length of the limiting sliding groove is the same as the expandable diameter difference of the air bag, and the abutting spring is always in a compressed state.

Preferably, the bottoms of the protection block and the jacking adjustment block are both curved surfaces, and the curvature radius of the curved surfaces is the same as the radius of the airbag expanded to the maximum limit.

Preferably, the top parts of the two ends of the stress rod symmetrically extend out of a small section to be sleeved in the hydraulic oil cavity, the two ends of the hydraulic oil cavity are respectively communicated with the telescopic cavity and the inclined hole, and the upper end part of the telescopic cavity is opened to be contacted with the telescopic top block.

Preferably, the number of the inclined holes is two, two ends of one inclined hole are respectively communicated with the top ends and the bottom ends of the two hydraulic oil chambers, and hydraulic oil is filled in the hydraulic oil chambers and the inclined holes.

The invention has the following beneficial effects:

1. there is the protection piece through the position movable mounting that is located between two adjacent keybars in the inside of axis body, and the protection piece, compare in prior art, the protection piece is close to axle center end and is the same for the diameter camber that curved surface and camber and gasbag propped up completely, and is connected with at the other end of protection piece and supports to press the spring and cup joint in the inside spacing spout of axis body, thereby spacing spout restriction protection piece's flexible realization is to the guard action after the gasbag expands, makes the life of gasbag more permanent.

2. The jacking adjusting block and the telescopic jacking block are arranged between the key strip and the air bag for transmission force, and the rotating stress rod is arranged at the bottom of the jacking adjusting block, compared with the prior art, when the air bag is expanded, the jacking adjusting block is jacked to eject outwards, if the force applied to two ends of the stress rod is different, the stress rod can rotate through the rotating shaft to adjust, and the two ends of the stress rod can eject the telescopic jacking block when reaching certain pressure, so that the situation that the key strip is inclined to break fast paper due to unbalanced stress at two ends is avoided, meanwhile, when the force applied to one end is larger, hydraulic oil is pressed through inclined holes to adjust the pressure conditions at two ends, meanwhile, an air inlet shaft is arranged in the air bag, and a rotatable spiral rotating shaft is arranged in the air inlet shaft, so that the size of the air pressure applied to the same surface perpendicular to the radial direction is basically the same when the air is inflated, and the parallel ejection of the key strip is facilitated, the flatulence effect is good.

Drawings

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

FIG. 2 is a partial cross-sectional view of the structure of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is an enlarged view of FIG. 2 at B;

fig. 5 is a schematic diagram of the operation of a conventional air shaft.

In the figure: 1. a shaft body; 101. a limiting chute; 2. a roll shaft; 3. a key bar; 4. an air tap; 5. an air intake shaft; 501. an air outlet; 6. a helical shaft; 7. an air bag; 8. a stress beam; 801. a rotating shaft; 9. pushing the adjusting block; 901. a hydraulic oil chamber; 902. a telescoping chamber; 903. an inclined hole; 904. a slider; 905. a return spring; 10. a telescopic top block; 11. a protection block; 12. pressing against the spring.

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.

Referring to fig. 1-4, a bump key type inflatable shaft comprises a shaft body 1, a roller shaft 2 is fixedly installed at the end of the shaft body 1, an air nozzle 4 is opened at one end of the shaft body 1 located at the roller shaft 2, a key strip 3 is uniformly and movably sleeved on the outer wall of the shaft body 1, an air inlet shaft 5 is fixedly installed at the center inside the shaft body 1, a spiral rotating shaft 6 is movably installed at the middle part of the air inlet shaft 5, a through air outlet hole 501 is opened on the inner wall of the air inlet shaft 5, an air bag 7 is fixedly installed at the outer ring of the air inlet shaft 5, a telescopic ejector block 10 is fixedly connected to the bottom of the key strip 3, an ejector adjusting block 9 is movably sleeved on the inner wall of the shaft body 1 located at the bottom of the telescopic ejector block 10, a force-bearing rod 8 is movably installed at the bottom inside the ejector adjusting block 9, a limit chute 101 is opened at the position of the inner wall, the protection piece 11 has been cup jointed in the bottom activity of spacing spout 101, the middle part movable mounting of atress pole 8 has axis of rotation 801 and moves through axis of rotation 801 and top and realize rotating the effect between the regulating block 9, the both ends that the regulating block 9 bottom was moved in the top have been seted up hydraulic oil chamber 901, the inside symmetry that the regulating block 9 both ends was moved in the top has been seted up flexible chamber 902, two inclined holes 903 have been seted up at the middle part that the regulating block 9 was moved in the top, flexible chamber 902 is inside to have cup jointed slider 904 by outer one end activity, slider 904 leans on interior one end fixedly connected with reset spring 905.

The keybar 3 is installed in a ring-shaped trisection mode, the stability of a triangle is the best, the supporting performance of a circle of keybars 3 can be improved by adopting the installation mode, the width of the top section of the telescopic top block 10 is larger than that of the bottom, the bottom needs to be sleeved inside, the top end needs to play a supporting role, the diameter of the middle section inside the limiting sliding groove 101 is larger than that of the two ends, the length of the middle section is the same as the expandable diameter difference of the air bag 7, the limiting sliding groove 101 is matched with the protection block 11 for use to achieve the protection effect, the length of the section needs to be limited within the maximum expansion diameter of the air bag 7, the compression spring 12 is always in a compression state, and the protection block 11 is always tightly abutted against one end of the jacking adjusting block 9 to achieve.

The bottoms of the protection block 11 and the jacking adjustment block 9 are both curved surfaces, the curvature radius of the curved surfaces is the same as the radius of the airbag 7 expanded to the maximum, and the curved surfaces can be just attached to the inner ring curved surfaces when the airbag 7 is inflated and expanded to push the protection block 11 and the jacking adjustment block 9 to the maximum position (namely the maximum expansion diameter of the airbag 7), so that the surface of the airbag 7 is protected, and the phenomenon that wrinkles occur to affect the service life is prevented.

Wherein, the top symmetry at stress pole 8 both ends stretches out a segment and cup joints in hydraulic pressure oil pocket 901, the both ends of hydraulic pressure oil pocket 901 communicate flexible chamber 902 and inclined hole 903 respectively, the upper end opening in flexible chamber 902 contacts in flexible kicking block 10, the slight rotation lift at stress pole 8 both ends can be realized to axis of rotation 801 through stress pole 8 middle part, thereby will be used in hydraulic pressure oil pocket 901, the place that axis of rotation 801 and top move regulating block 9 are connected can inwards contract a bit this moment to make things convenient for hydraulic oil to be compressed, later through hydraulic oil to both sides top move slider 904 realize control flexible kicking block 10 can upwards jack-up, only if two sliders 904 all receive certain pressure just can inwards contract completely into, lose the restriction to flexible kicking block 10 and just can work this moment, effectively avoided leading to 3 both ends height difference of keybar and cause the damage to paper.

The two inclined holes 903 are two, the two ends of one inclined hole 903 are respectively communicated with the top ends and the bottom ends of the two hydraulic oil cavities 901, the hydraulic oil cavities 901 and the inclined holes 903 are filled with hydraulic oil, and the hydraulic oil cavities 901 at the other ends can be extruded to the hydraulic oil cavities 901 at the other ends through the inclined holes 903 when the pressure at one ends is too high through the design, so that the pressure at the two ends is adjusted, and the key bars 3 can be effectively ejected.

The working principle is that a paper roll to be printed is sleeved on the outer ring of a shaft body 1, then the air inlet shaft 5 is inflated through an air nozzle 4, the inflated air can impact spiral blades on a spiral rotating shaft 6 to enable the spiral blades to rotate, then the air bag 7 can enter through an air outlet hole 501 and expand the air bag 7, the air bag 7 can eject the jacking adjusting block 9 outwards while expanding, the pressure of air enters from one end, a force bearing rod 8 at the bottom of the jacking adjusting block 9 can bear forces with different magnitudes at two ends, then certain deflection with different heights at two ends can be realized according to the rotating shaft 801, hydraulic oil in a hydraulic oil cavity 901 is pressed upwards, when sliding blocks 904 at two ends are all subjected to enough pressure, the sliding blocks at two ends can be ejected outwards, then the telescopic ejecting block 10 can be ejected to push out the end part of a key strip 3, when the air bag 7 expands to the maximum diameter, the air bag is just attached to the bottom surfaces of the jacking adjusting block 9 and the protecting block 11, at the moment, the key strip 3 is also pushed to the maximum position to realize the fixing function; when the pressure at the two ends of the stress rod 8 is unbalanced when the air bag 7 expands, hydraulic oil is extruded to the other end through the inclined hole 903 so that the other end is jacked up, and the pressure at the two ends is balanced so as to ensure the stability of the keybar 3.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a protruding key formula physiosis axle, includes axis body (1), and the tip fixed mounting of axis body (1) has roller (2), and air cock (4) have been seted up to the one end that axis body (1) is located roller (2), and key strip (3), its characterized in that have been cup jointed in the even activity of outer wall of axis body (1): an air inlet shaft (5) is fixedly arranged at the center inside the shaft body (1), a spiral rotating shaft (6) is movably arranged in the middle of the air inlet shaft (5), the inner wall of the air inlet shaft (5) is provided with a through air outlet hole (501), the outer ring of the air inlet shaft (5) is fixedly provided with an air bag (7), the bottom of the key bar (3) is fixedly connected with a telescopic ejector block (10), the inner wall of the shaft body (1) at the bottom of the telescopic ejector block (10) is movably sleeved with a jacking adjusting block (9), the bottom inside the jacking adjusting block (9) is movably provided with a stress rod (8), a limiting sliding groove (101) is arranged at the position of the inner wall of the shaft body (1) between two adjacent key strips (3), a pressing spring (12) is fixedly connected on the top wall inside the limiting sliding groove (101), the bottom end of the limiting sliding groove (101) is movably sleeved with a protection block (11).

2. A male keyed air shaft as claimed in claim 1 wherein: the middle part movable mounting of atress pole (8) has axis of rotation (801) and moves through axis of rotation (801) and top and realize rotating the effect between regulating block (9), hydraulic oil chamber (901) have been seted up at the both ends that regulating block (9) bottom are moved in the top, flexible chamber (902) have been seted up to the inside symmetry that moves regulating block (9) both ends in the top, two inclined hole (903) have been seted up at the middle part that the regulating block (9) was moved in the top, slider (904) have been cup jointed to flexible chamber (902) inside by outer one end activity, slider (904) lean on interior one end fixedly connected with reset spring (905).

3. A male keyed air shaft as claimed in claim 1 wherein: the key bars (3) are installed in an annular trisection mode, the width of the top section of the telescopic top block (10) is larger than that of the bottom of the telescopic top block, the diameter of the middle section of the inner portion of the limiting sliding groove (101) is larger than that of the two ends of the limiting sliding groove, the length of the limiting sliding groove is the same as the expandable diameter difference of the air bag (7), and the pressing spring (12) is always in a compressed state.

4. A male keyed air shaft as claimed in claim 1 wherein: the bottoms of the protection block (11) and the jacking adjusting block (9) are both curved surfaces, and the curvature radius of the curved surfaces is the same as the radius of the airbag (7) expanded to the maximum.

5. A male keyed air shaft according to claim 2 wherein: the top parts of two ends of the stress rod (8) symmetrically extend out a small section to be sleeved in a hydraulic oil cavity (901), two ends of the hydraulic oil cavity (901) are respectively communicated with a telescopic cavity (902) and an inclined hole (903), and the upper end part of the telescopic cavity (902) is opened to be contacted with a telescopic top block (10).

6. A male keyed air shaft according to claim 2 wherein: the hydraulic oil cavity is characterized in that the number of the inclined holes (903) is two, two ends of one inclined hole (903) are respectively communicated with the top end and the bottom end of two hydraulic oil cavities (901), and hydraulic oil is filled in the hydraulic oil cavities (901) and the inclined holes (903).