CN208101304U - A kind of roller for offset press - Google Patents
A kind of roller for offset press Download PDFInfo
- Publication number
- CN208101304U CN208101304U CN201820623591.1U CN201820623591U CN208101304U CN 208101304 U CN208101304 U CN 208101304U CN 201820623591 U CN201820623591 U CN 201820623591U CN 208101304 U CN208101304 U CN 208101304U
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- roll body
- gas transmission
- transmission tube
- tube body
- roller
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- Inking, Control Or Cleaning Of Printing Machines (AREA)
Abstract
The utility model discloses a kind of rollers for offset press, are related to printing equipment field.The utility model includes the internal roll body for cavity, gas transmission tube body, and the end at the both ends of roll body is equipped with protruding portion, and through-hole is offered at protruding portion, and through-hole runs through the end of roll body and penetrates through with cavity；Gas transmission tube body is set to inside roll body, and the end-enclosed of one end of gas transmission tube body, the end of the other end offers air inlet, offers venthole on the tube wall of gas transmission tube body；Air inlet is connect with the through-hole of roll body one end by wind conveying pipe, and wind conveying pipe is connected to far from one end of air inlet with external air source；Gas transmission tube body and the inner wall of roll body are connected by fixing piece.The temperature of its barrel is effectively reduced by accelerating the air flowing inside roll body in the utility model, prevents ink from occurring excessively to emulsify because the temperature of roller is higher.
Description
Technical field
The utility model relates to printing equipment fields, more particularly to a kind of roller for offset press.
Background technique
Offset printing is one of a kind of printing technology being most widely used at present, and offset printing is exactly incompatible using ink
The transfer of principle realization ink.It could be theoretically argued that the water of printing plate blank parts and the ink of printing plate areas do not mix mutually,
When not infiltrating mutually, ink-water balance can be only achieved.But ideal ink-water balance state, ink can not be reached in actually printing
Emulsification problem be inevitable.Ink emulsification appropriate can improve the mobility of ink, improve printability, for printing
Process is prepared, the ink that absolutely not emulsifies or emulsification is too low will cause the failures such as blind plate, flower stencil.In addition, ink excessively emulsifies
The property that will lead to ink changes, if color is thin out, color saturation decline, viscosity decline, attachment degree weaken etc., thus
Cause the unstable of technique and print quality, leads to that printing color is gloomy, mass colour differs larger, trace drying property before and after product
It can slow down significantly, be easy to cause the problems such as set-off.
It, i.e., in press will be with print since the process of ink-water balance is the process of a dynamic equilibrium in offset printing process
The variation of swipe part, contacted with each other between each roller in long-term printing work will lead to its appearance temperature it is higher, make
It is reduced at the viscosity of ink, mobility increases to aggravate the excessive emulsification of ink.It generallys use and stops in printing process at present
The mode of machine debugging and control workshop temperature carries out the readjustment of ink-water balance, but this mode is needing to expend centainly
Time and raw material, increase production cost, in addition the effect is unsatisfactory for the temperature control of ambient temperature pair roller barrel.
Utility model content
The utility model in order to solve to cause ink excessively to emulsify since roller temperature is higher in offset printing process at present,
Occur that color is gloomy, mass colour difference is larger before and after product, trace drying property slows down significantly, be easy to cause so as to cause printed matter
The problems such as set-off, provides a kind of roller for offset press herein to solve the above problems.
The utility model specifically uses following technical scheme to achieve the goals above：
A kind of roller for offset press, roll body, gas transmission tube body including inside for cavity, the roll body
The end at both ends is equipped with protruding portion, offers through-hole at the protruding portion, the through-hole through roll body end and with
Cavity perforation；The gas transmission tube body is set to inside roll body, the end-enclosed of one end of the gas transmission tube body, the end of the other end
Portion offers air inlet, offers multiple ventholes on the tube wall of the gas transmission tube body；The air inlet and roll body one end
Through-hole connected by wind conveying pipe, the wind conveying pipe is connected to far from one end of air inlet with external air source；The gas transmission tube body with
The inner wall of roll body is connected by fixing piece.
In the utility model preferred embodiment, rotatory sealing between the wind conveying pipe and through-hole, the wind conveying pipe with
Air inlet is connected by rotary joint.
In the utility model preferred embodiment, the diameter of gas transmission tube body is gradually decreased along gas motion direction.
In the utility model preferred embodiment, the fixing piece includes fixed ring and fixed link, the fixed link
The connection of the inner wall of one end and roll body, the other end are connect with fixed ring outer wall, and the Fixing shrink ring is set to the side of gas transmission tube body
Wall.
In the utility model preferred embodiment, the gas transmission tube body and roll body are coaxially disposed.
In the utility model preferred embodiment, the inner wall of the roll body is equipped with carbon fibre composite layer.
The beneficial effects of the utility model are as follows：A kind of roller for offset press provided by the utility model is worked
Cheng Zhong, gas after treatment are entered in gas transmission tube body by wind conveying pipe, and gas acts on roll body by venthole
There is certain temperature difference, one side roll body is by the partial heat of itself between the side wall of inner wall, gas and roll body
Gas is passed to, achievees the effect that cooling；The quick flowing of another aspect gas can accelerate the heat in roll body inner cavity to dissipate
It loses, so that pair roller barrel main body cools down, prevents ink from occurring excessively to emulsify because temperature is higher when being in contact with it, guarantee printing
The quality of product.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the use of the new type embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is a kind of structural schematic diagram of roller for offset press provided by the utility model；
Fig. 2 is the structural schematic diagram of fixing piece provided by the utility model.
Appended drawing reference：1- roll body；2- gas transmission tube body；4- appendix；5- rotating seal ring；11- protruding portion；13- carbon
Fiber composite layer；21- venthole；23- rotary joint；31- fixed link；33- fixed ring.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Referring to Fig.1 and 2, mainly including internal for cavity the present embodiment provides a kind of roller for offset press
Roll body 1, gas transmission tube body 2.
The end at the both ends of roll body 1 is equipped with protruding portion 11, and protruding portion 11 can rotate between the body of offset press
Connection, to achieve the effect that even ink, inking.Offer through-hole at protruding portion 11, through-hole through roll body 1 end and with sky
Chamber perforation.
Gas transmission tube body 2 is set to inside roll body 1, and gas transmission tube body 2 is connect with the inner wall of roll body 1 by fixing piece.
The end-enclosed of one end of gas transmission tube body 2, the end of the other end offer air inlet, and air inlet is logical with 1 one end of roll body
Hole is connected by wind conveying pipe 4, and wind conveying pipe 4 is connected to far from one end of air inlet with external air source.It is opened up on the tube wall of gas transmission tube body 2
There are multiple ventholes 21, uniformly arranges on venthole 21 and the side wall of gas transmission tube body 2；In addition to this, gas transmission tube body 2 and roller master
Body 1 is coaxially disposed so that the gas of each venthole 21 can stepless action everywhere in roll body 1, guarantee roll body 1
Barrel temperature maintains in lesser disparity range, to not influence the property of ink.
Further, the diameter of gas transmission tube body 2 is gradually decreased along gas motion direction.Conveying of the gas in gas transmission tube body 2
Air pressure gradually becomes smaller in the process, and the diameter of gas transmission tube body 2 gradually becomes smaller so that the pressure of gas transmission tube body 2 everywhere generally remains phase
Together, the pressure for acting on gas at the barrel of roll body 1 keeps almost the same, to guarantee that the temperature of barrel everywhere is kept
Unanimously.
Further, rotatory sealing between wind conveying pipe 4 and through-hole, wind conveying pipe 4 are connected with air inlet by rotary joint 23
It connects.Through hole can realize its rotatory sealing between wind conveying pipe 4 by setting rotating seal ring 5 herein.When roll body 1
In rotary course, the problems such as connection is rotated between wind conveying pipe 4 and gas transmission tube body 2, prevents wind conveying pipe 4 from winding.In addition, rotation
Turning sealing can be achieved to prevent external dust from entering inside roll body 1.
Specifically, fixing piece includes fixed ring 33 and fixed link 31, and one end of fixed link 31 and the inner wall of roll body 1 connect
It connects, the other end is connect with 33 outer wall of fixed ring, and fixed ring 33 is sheathed on the tube wall of gas transmission tube body 2.It should be noted that not up to
Better fixed effect, the fixing piece in the present embodiment can be it is multiple, particular number can be according to the length and weight of gas transmission tube body 2
It is determined.
Preferably, the inner wall of roll body 1 is equipped with carbon fibre composite layer 13, the outer surface of carbon fiber composite bed is
Honeycomb.The roll body 1 that gas directly acts on iron and steel material quality can generate biggish noise, by the way that carbon fiber composite is arranged
13 one side of the bed of material can reduce the shock extent of gas Yu roll body 1, and cellular outer surface reflects sound, extend
The transmitting path of sound achievees the effect that reduce noise；Another aspect carbon fibre composite layer 13 has stronger thermally conductive
Property, carbon fibre composite layer 13 absorb the heat of roll body 1, and honeycomb outer surface increases the contact with gas
Area makes gas Quick diffusing.
In conclusion a kind of roller for offset press provided in this embodiment is in working condition, after treatment
Gas is entered in gas transmission tube body by wind conveying pipe, and gas acts on the inner wall of roll body, gas and roller master by venthole
There is certain temperature difference, the partial heat of itself is passed to gas, reaches drop by one side roll body between the side wall of body
The effect of temperature；The quick flowing of another aspect gas can accelerate the heat loss in roll body inner cavity；In addition, by roller
Heat transfer at carbon fibre composite layer quickening barrel is set on the inside barrel of main body, is distributed, drop has furthermore also been reached
The effect made an uproar.Pair roller barrel main body cools down through the above way, prevents ink from occurring when being in contact with it because temperature is higher
Degree emulsification, guarantees the quality of printing product.
The above, the only preferred embodiment of the utility model, are not intended to limit the utility model, the utility model
Scope of patent protection be subject to claims, it is equivalent made by all specifications and accompanying drawing content with the utility model
Structure change similarly should be included in the protection scope of the utility model.
Claims (6)
1. a kind of roller for offset press, which is characterized in that including the internal roll body (1) for cavity, gas transmission tube body
(2), the end at the both ends of the roll body (1) is equipped with protruding portion (11), offers through-hole at the protruding portion (11), institute
Through-hole is stated through the end of roll body (1) and is penetrated through with cavity；The gas transmission tube body (2) is set to roll body (1) inside, institute
The end-enclosed of one end of gas transmission tube body (2) is stated, the end of the other end offers air inlet, the tube wall of the gas transmission tube body (2)
On offer multiple ventholes (21)；The air inlet is connect with the through-hole of roll body (1) one end by wind conveying pipe (4), institute
Wind conveying pipe (4) are stated to be connected to far from one end of air inlet with external air source；The inner wall of the gas transmission tube body (2) and roll body (1)
It is connected by fixing piece.
2. a kind of roller for offset press according to claim 1, which is characterized in that the wind conveying pipe (4) and through-hole
Between rotatory sealing, the wind conveying pipe (4) and air inlet are connect by rotary joint (23).
3. a kind of roller for offset press according to claim 1, which is characterized in that the gas transmission tube body (2) it is straight
Diameter is gradually decreased along gas motion direction.
4. a kind of roller for offset press according to claim 1, which is characterized in that the fixing piece includes fixed ring
(33) it is connect with fixed link (31), one end of the fixed link (31) with the inner wall of roll body (1), the other end and fixed ring
(33) outer wall connects, and the fixed ring (33) is sheathed on the tube wall of gas transmission tube body (2).
5. a kind of roller for offset press according to claim 1, which is characterized in that the gas transmission tube body (2) and roller
Cylinder main body (1) is coaxially disposed.
6. a kind of roller for offset press according to claim 1, which is characterized in that the roll body (1) it is interior
Wall is equipped with carbon fibre composite layer (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820623591.1U CN208101304U (en) | 2018-04-27 | 2018-04-27 | A kind of roller for offset press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820623591.1U CN208101304U (en) | 2018-04-27 | 2018-04-27 | A kind of roller for offset press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208101304U true CN208101304U (en) | 2018-11-16 |
Family
ID=64113718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820623591.1U Active CN208101304U (en) | 2018-04-27 | 2018-04-27 | A kind of roller for offset press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208101304U (en) |
-
2018
- 2018-04-27 CN CN201820623591.1U patent/CN208101304U/en active Active
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