CN201787319U - Aluminum alloy tube used as fixing roll or transmission shaft main body - Google Patents
Aluminum alloy tube used as fixing roll or transmission shaft main body Download PDFInfo
- Publication number
- CN201787319U CN201787319U CN2010205270343U CN201020527034U CN201787319U CN 201787319 U CN201787319 U CN 201787319U CN 2010205270343 U CN2010205270343 U CN 2010205270343U CN 201020527034 U CN201020527034 U CN 201020527034U CN 201787319 U CN201787319 U CN 201787319U
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- roll
- aluminum alloy
- transmission shaft
- main body
- stretching
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Abstract
The utility model discloses an aluminum alloy tube used as a fixing roll or a transmission shaft main body, which is a hollow round tube. The inner wall of the round tube is provided with a plurality of spiral linear reinforcing ribs which are formed through stretching. The aluminum alloy tube saves materials used for manufacturing and heating roll alloy tubes to the utmost extent by means of adding a plurality of spiral linear reinforcing ribs on the inner wall of the aluminum alloy tube, and manufacturing cost of the aluminum alloy tube is almost equal to manufacturing cost before the spiral linear reinforcing ribs are used, thereby being capable of guaranteeing the strength and the endurance needed by the mixing roll, also being capable of saving sources and reducing cost, greatly reducing needed materials when achieving the same strength, being obvious in application effect on an upper roll of a heating roll, and further being capable of being suitable for a lower roll and other transmission shafts in the inner portion of office equipment (OA). The aluminum alloy tube is high in production efficiency, and greatly reduces the production cost.
Description
[technical field]
The utility model relates to office equipment (OA) such as a kind of laser printer, duplicating machine, facsimile apparatus or all-in-one multifunctional machine, refers in particular to the fixing roll or the transmission shaft of these office equipment.
[background technique]
In office equipment (OA) such as printer, duplicating machine, facsimile apparatus or all-in-one multifunctional machine, include parts such as fixing device, and fixing roll is commonly called as warm-up mill, it is the critical component of fixing device, general type all has two fixing rolls 10,20 up and down, as shown in Figure 1, and wherein:
Photographic fixing top roll 10 is inner hollow (as shown in Figure 2), and be provided with within it the heating fluorescent tube 30 heat (as shown in Figure 3), the tubing of the photographic fixing top roll 10 of high-quality mostly is aluminum alloy material, scribbles resistant to elevated temperatures chemistry on its surface and films; The speed that rises because of the fixing device temperature directly influences the speed of the printing or the duplicating of printer or duplicating machine, so that tube wall requires is thinner, and absorbs heat at the heat-resisting black paint of inner application, to guarantee that heat conducts rapidly.
Photographic fixing lower roll 20 mostly is solid aluminium alloy bars (as shown in Figure 4) at present, or middle increase by three or four support are arranged (be commonly called as is three vow that pipe or four vows pipe) aluminium alloy pipe (shown in Fig. 5,6, be three vow manage aluminium alloy pipes).When the aluminium alloy pipe of fixing roll main body is processed into the photographic fixing lower roll, be surrounded by one deck rubber layer with the corresponding part of top roll, generally take on a red color, on rubber layer, be surrounded by the thin resistant to elevated temperatures chemical film of one deck, its main effect is that the photographic fixing top roll is exerted pressure, itself does not drive, and the power of its rotation is from the friction of photographic fixing top roll, it with the rotation of photographic fixing top roll can with print, the carbon dust image of duplicating give photographic fixing by high temperature and it is passed out in the paper disc of printing, duplicating machine.
Can know that from top description the photographic fixing top roll is because of exerting pressure to the photographic fixing lower roll, the pipe thickness of top roll has been subjected to certain restriction:
If the wall thickness design of top roll is thicker, can guarantee enough intensity and endurance, under the pressure of variation (heating up cooling when quitting work during work) that temperature repeats and lower roll, be not easy distortion and can effectively drive lower roll; Its shortcoming is exactly that the speed that heats up is affected, and when machine received the instruction of printing or duplicating, the fluorescent tube in the top roll heated, temperature rises needs the regular hour, the process that a wait is arranged during operation, the consumption of resource simultaneously is bigger, the corresponding increase of cost.
If the wall thickness design of top roll is thin excessively, its advantage is to make the temperature fast rise, and speed is very fast when printing, duplicating, does not need to wait for that the consumption of resource the most at the beginning is less, and cost reduces; But shortcoming is the intensity and the endurance of aluminium alloy pipe itself to descend, under the variation that the pressure of lower roll and temperature repeat, top roll easy deformation or cracking, working life is extremely short, cause more resources consumption when repeating to change fixing device on the contrary, Consumer's user cost is increased.
[model utility content]
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of and can guarantee needed intensity of fixing roll and endurance, the aluminium alloy pipe as fixing roll or transmission shaft main body that can economize on resources and reduce cost again, when reaching same intensity, the needed material of the utility model significantly reduces.
In order to solve the technical problem of above-mentioned existence, the utility model adopts following technical proposals:
A kind of aluminium alloy pipe as fixing roll or transmission shaft main body is hollow circular-tube, is provided with the zigzag shape stiffening rib that some stretch formings are come out at round tube inner wall.
In the improvement project to the above-mentioned aluminium alloy pipe that is used as fixing roll or transmission shaft main body, the helix angle of described zigzag shape stiffening rib is greater than 0 degree, less than 45 degree.
In the improvement project to the above-mentioned aluminium alloy pipe that is used as fixing roll or transmission shaft main body, the helix angle of described zigzag shape stiffening rib is between 15～30 degree.
In improvement project to above-mentioned aluminium alloy pipe as fixing roll or transmission shaft main body, the zigzag shape stiffening rib of going back have three or more than.
Compared with prior art, the beneficial effects of the utility model are: it is by increase the stiffening rib of many zigzag shapes at the inwall of aluminium alloy pipe, it saves the material use amount of making the warm-up mill aluminium alloy pipe to greatest extent, and the manufacturing cost before manufacturing cost and use almost maintains an equal level, can guarantee needed intensity of fixing roll and endurance like this, can economize on resources and reduce cost again, when reaching same intensity, the needed material of the utility model significantly reduces, this is not only remarkable at the top roll effect of warm-up mill, can also be useful on the transmission shaft of inner other of lower roll or office equipment (OA); Manufacturing efficiency height of the present utility model, reduce production costs greatly.
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
[description of drawings]
Fig. 1 is the stereogram of office equipment fixing device commonly used;
Fig. 2 is the structural representation of the photographic fixing top roll main body of present stage;
Fig. 3 is the structural representation of the photographic fixing top roll of present stage;
Fig. 4 is structure one schematic representation of the photographic fixing lower roll of present stage;
Fig. 5 is structure two schematic representation of the photographic fixing lower roll of present stage;
Fig. 6 is the B-B sectional view of Fig. 5;
Fig. 7 is a structural representation of the present utility model;
Fig. 8 is stereogram of the present utility model (to cutting the back);
Fig. 9 is the semi-finished product schematic representation or the processing schematic representation of corresponding each operation of the utility model;
Figure 10 is the processing schematic representation of the utility model at stretching process;
Figure 11 is the structural representation of the utility model at the used screw type plug of stretching process;
Figure 12 is the front view of tartar of the screw type plug of Figure 11;
Figure 13 is the side view of tartar of the screw type plug of Figure 11;
Figure 14 is the utility model is used for fixing internal mold at stretching process the driven slewing gear of steel wire connecting rod;
Figure 15 is the structural representation after the utility model is used for making the photographic fixing top roll;
Figure 16 is the structural representation after the utility model is used for making the photographic fixing lower roll.
[embodiment]
The utility model is a kind of aluminium alloy pipe as fixing roll or transmission shaft main body, shown in Fig. 7,8, it is a hollow circular-tube 1, and is provided with the zigzag shape stiffening rib 2 that some stretch formings are come out at round tube inner wall, in the present embodiment, six zigzag shape stiffening ribs are arranged.Generally at least 3 of stiffening ribs, helix angle are more than 0 degree, and be below 45 degree, proper in the time of usually between 15～30 degree.
The applicant's mentality of designing is such---
For increasing the intensity and the endurance of aluminium alloy pipe 1, we have at first considered the increase stiffening rib, improve the mechanical property of integral material by stiffening rib.Increasing intensity and the endurance that stiffening rib just can increase aluminium alloy pipe in the aluminium alloy pipe inside of making fixing roll, is problem stiffening rib by what kind of form and what kind of technology is realized? for this reason, successively attempt stiffening rib being set with following several modes;
One, the inwall at aluminium alloy pipe increases many axial stiffening ribs, at this moment it is axial stressed to strengthen it, its preparation process can obtain by better simply mode, but because of the radial force of fixing roll is bigger, the effect of shaft orientation reinforcing rib can not effectively increase the radial force of Al-alloy pipe; Once attempted increasing its radial force by the quantity that increases shaft orientation reinforcing rib for this reason, if but the quantity of shaft orientation reinforcing rib when too many is little with the wall thickness difference that increases aluminium alloy pipe, thus the purpose that does not have the economical with materials resource and reduce cost.
Two, the inwall at aluminium alloy pipe increases many stiffening ribs radially, can effectively increase the radial force of Al-alloy pipe like this, but it is axial stressed relatively poor, and processing technology is comparatively complicated, increased fabricating cost, cause the saving of cost of material and the raising of fabricating cost to remain basically stable, offset, so though this set radially the aluminium alloy pipe of stiffening rib make and can improve the warm-up mill problem of heating rapidly behind the photographic fixing top roll, economic benefit is not obvious.
Three, by to above-mentioned two kinds of research and experiments that increase the stiffening rib scheme, explore axial with the directly stressed problem of a kind of effective solution aluminium alloy pipe finally! This technology is passed through the improvement to " stretching " in the intrinsic processing technology of the tubing of making the warm-up mill main body (or claiming drawing) technology, increase the stiffening rib of many zigzag shapes at the inwall of aluminium alloy pipe, the quantity of stiffening rib changes according to different requirements with I greatly.This technology can be saved the material use amount of making the warm-up mill aluminium alloy pipe to greatest extent, and the manufacturing cost before manufacturing cost and use almost maintains an equal level, so can guarantee needed intensity of fixing roll and endurance, can economize on resources and reduce cost again, when reaching same intensity, the needed material of the utility model significantly reduces, and this is not only remarkable at the top roll effect of warm-up mill, can also be useful on the transmission shaft of inner other of lower roll or office equipment (OA); Manufacturing efficiency height of the present utility model, reduce production costs greatly.As shown in figure 15, be that aluminium alloy pipe of the present utility model has been made the photographic fixing top roll, and in Figure 16, then can be used as photographic fixing lower roll or transmission shaft.
The making method that is used as the aluminium alloy pipe of fixing roll or transmission shaft main body of the present utility model includes following steps:
1), founding: the aluminum alloy that dissolves watered in die cavity cast out the solid aluminum rod;
2), extruding: aluminium bar is squeezed out hollow pipe in extrusion die;
3), stretch (drawing): pipe 2 pulls out in the stretcher of the inside and outside mould 3,4 of band stretching, on described stretching inner mold 3 outer surfaces, be provided with some with axially be more than the O degree, the following oblique groove of 45 degree, this angle is exactly the helix angle of the helix stiffening rib that stretches, and stretching inner mold 3 rotates the back forms some zigzag shapes at pipe 1 inwall stiffening rib 2 when stretching;
4), correct: correct the circularity and the straight degree of tubing at adjusting mechanism, and eliminate its residual stress.
Aluminium alloy pipe after correcting is cut off according to needed length, and then make photographic fixing top roll (as shown in figure 15), photographic fixing lower roll or transmission shaft (as shown in figure 16) etc.
Above-mentioned founding, extruding, three operations of rectification are made hollow aluminium alloy fixing roll basically identical with present stage, and key is the design of the drawing die in the stretching process:
Use characteristic according to different OA types designs the specification of warm-up mill aluminium alloy pipe and the quantity and size of stiffening rib, needs design for this reason and makes the employed inside and outside mould 3,4 of stretching, shown in Figure 10-13.Be located at the inwall of tubing because of stiffening rib, so focus on the design and fabrication of stretching internal mold 3, at first according to the number of turns of the length setting zigzag shape stiffening rib of warm-up mill main body, promptly draw pitch, the internal diameter of tubing is the diameter of screw thread, calculate screw thread and axial angle according to pitch and diameter, this angle is the groove and the axial angle of stretching of stretching internal mold 3; The specification of the projection of screw thread (size of stiffening rib) is set according to stressed size with the quantity of stiffening rib, and this specification is the depth D of stretching internal mold groove.As a length 325mm, the fixing roll tubing of internal diameter φ 118mm, the helix stiffening rib is set at 2 circles, and quantity is 6, and projection amount is R1, calculate screw thread and axial angle and be about 20 degree, stretching internal mold groove is D=1mm, and it is sharper keen that groove and mould external diameter form the limit, needs rounding, the mold integral polishing guarantees that material reasonably flows.4 of stretching external molds are set according to needed product external diameter.
Because helix stiffening rib 2 is to finish by stretching, during usual stretching, metal mobile is direction linearly, after increasing the helix stiffening rib, the flow direction of metal becomes straight line and rotation both direction, according to mechanics principle, the stress of rotational flow can not be greater than streamlined flow stress, otherwise material fracture can cause stretching the time; So the axial angle of stretching internal mold groove and stretching must be greater than 0 degree, and less than 45 degree, preferably is controlled between 15 degree-30 degree.
Stretching inner mold 3 includes interior decorative pattern plug 3 and the connector assembly 32 with many spiral yarn shaped grooves 311, shown in Figure 11-13, six scroll grooves is arranged, and the zigzag shape stiffening rib 2 that comes out that stretches so also has six, and the degree of depth of groove is D.
In the present embodiment, in stretching process, be provided with steel wire connecting rod 5 at stretching inner mold 3 tail ends, steel wire connecting rod 5 rotates around the axis hole 61 of the internal mold positioning block 6 of its afterbody, leaning against the power that produces when stretching makes stretching inner mold 3 and steel wire connecting rod 5 around 6 rotations of internal mold positioning block, as shown in figure 10; Certainly, also can impose certain external force uses steel wire connecting rod and stretching inner mold 3 to rotate, but speed when stress that produces during because of the metal rotational flow and stretching, the modular angle of mould compression band, the degree of finish of die surface, the factors such as angle of internal mold groove are relevant, if when the steel wire connecting rod afterbody application of force is come active drive, the rotational speed of steel wire connecting rod is difficult to calculate, can't guarantee carrying out smoothly of stretching, so present embodiment is as preferable embodiment, the stress that the metal rotational flow produces when eliminating stretching, rotation stress drives the driven drive unit 7 of steel wire rotation when having designed by stretching, as shown in figure 14, it includes the plane bearing 72 that steel wire connecting rod 5 is fixed on the roller bearing 71 in the internal mold positioning block 6 and is used for reducing the frictional resistance that end face bears, and they are arranged in the axis hole 61 of internal mold positioning block 6, and its mentality of designing is as follows:
As shown in figure 10, common steel wire connecting rod 5 is that the mode by thread or welding is connected with internal mold positioning block 6, and during stretching, internal mold is drawn the power effect and steel wire connecting rod tailstock is close on the length locating face of stretching machine, under pulling force and the double effect of friction, the steel wire connecting rod can't rotation.For this reason, steel wire connecting rod 5 after the improvement has increased a plane bearing 72 and a roller bearing 71 in the inside of positioning block, roller bearing 71 is fixed on steel wire connecting rod 5 at the center of machine positioning block, avoid the friction on every side of steel wire and hole, the frictional resistance that plane bearing 72 bears end face drops to minimum.When the tubing of stretching band stiffening rib, the rotation stress that metal flow is produced in the internal mold groove drives fixedly steel wire rotation of internal mold, the stress that the speed of rotation is produced when depending on stretching after the rotation stress balance, just can be taken out smoothly and make the tubing that has stiffening rib.
Claims (4)
1. the aluminium alloy pipe as fixing roll or transmission shaft main body is hollow circular-tube (1), it is characterized in that: be provided with the zigzag shape stiffening rib (2) that some stretch formings are come out at pipe (1) inwall.
2. the aluminium alloy pipe as fixing roll or transmission shaft main body according to claim 1 is characterized in that: the helix angle of described zigzag shape stiffening rib (2) is greater than 0 degree, less than 45 degree.
3. the aluminium alloy pipe as fixing roll or transmission shaft main body according to claim 2 is characterized in that: the helix angle of described zigzag shape stiffening rib (2) is between 15～30 degree.
4. according to claim 1,2 or 3 described aluminium alloy pipes, it is characterized in that as fixing roll or transmission shaft main body: described zigzag shape stiffening rib (2) have three or more than.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205270343U CN201787319U (en) | 2010-09-06 | 2010-09-06 | Aluminum alloy tube used as fixing roll or transmission shaft main body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205270343U CN201787319U (en) | 2010-09-06 | 2010-09-06 | Aluminum alloy tube used as fixing roll or transmission shaft main body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201787319U true CN201787319U (en) | 2011-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205270343U Expired - Fee Related CN201787319U (en) | 2010-09-06 | 2010-09-06 | Aluminum alloy tube used as fixing roll or transmission shaft main body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201787319U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975331A (en) * | 2010-09-06 | 2011-02-16 | 袁宗凯 | Aluminum alloy pipe for fixation roller or transmission shaft main body and manufacturing method thereof |
-
2010
- 2010-09-06 CN CN2010205270343U patent/CN201787319U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975331A (en) * | 2010-09-06 | 2011-02-16 | 袁宗凯 | Aluminum alloy pipe for fixation roller or transmission shaft main body and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: SHAN QIMU PIAO ZHE Owner name: LI BINGLI Free format text: FORMER OWNER: YUAN ZONGKAI Effective date: 20110907 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 528463 ZHONGSHAN, GUANGDONG PROVINCE TO: 528400 ZHONGSHAN, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110907 Address after: 528400 Dongcheng garden, three Town, Guangdong City, Zhongshan province B50-304 Patentee after: Li Bingli Address before: 528463 Guangdong city of Zhongshan Province three township lijingjiayuan a room A5-101 Co-patentee before: Shan Qimu Patentee before: Yuan Zongkai Co-patentee before: Pu Zhe |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20190906 |