CN1401917A - Shaft sleeve structure and making method thereof - Google Patents
Shaft sleeve structure and making method thereof Download PDFInfo
- Publication number
- CN1401917A CN1401917A CN 01124246 CN01124246A CN1401917A CN 1401917 A CN1401917 A CN 1401917A CN 01124246 CN01124246 CN 01124246 CN 01124246 A CN01124246 A CN 01124246A CN 1401917 A CN1401917 A CN 1401917A
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- Prior art keywords
- cutout portion
- section
- internal diameter
- modular unit
- axle sleeve
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Abstract
An axle sleeve suitable for the module unit sliding along a guide rod has a through hole and two bearings. Its manufacture method includes providing a slide block having a first part, an open part and a central part, drawing out the slide block in the direction from the second part to the first one, making through hole, and mounting both bearings to both ends of said through hole.
Description
Invention field
The present invention relates to a kind of shaft sleeve structure and manufacture method thereof, relate in particular to the shaft sleeve structure and the manufacture method thereof that are applicable on the modular unit that slides along a guide rod.
Background of invention
See also Fig. 1 a, it finds out by knowing among the figure for the bearing base 10 and the organigram that guide rod 11 cooperatively interacts of IMAGE SCANNERS inside, is sleeved on guide rod 11 on the bearing base 10 and slides along guide rod 11.
See also Fig. 1 b again, it is sleeved on the structure section schematic representation of axle sleeve required on the guide rod 11 101 and bearing 102 for bearing base 10, its Intermediate shaft sleeve 101 is finished when making bearing base 10 housings in the lump, and, then after axle sleeve 101 moulding, insert the two ends of axle sleeve 101 in the mode that directly is pressed into usually with metal bearing 102.And since between the parallel precision in bearings at both ends 102 centers and the guide rod nargin close and be: the parallel precision departure in (1) two bearings center is less than nargin between bearing and the guide rod.Therefore, when nargin between bearing and the guide rod is dwindled in adjustment, can obtain the nargin and the minimum beat amount of bare engine module of a minimum, and then obtain best image quality.(2) the parallel precision departure in two bearings center is greater than nargin between bearing and the guide rod.Therefore, bearing and guide rod collocation nargin deficiency can cause dry and astringent stuck and can't scan, and must adjust the nargin of amplifying between bearing and the guide rod this moment, and with the nargin that obtains a maximum and the beat amount of bare engine module maximum, but image quality is often not good.
Therefore, the parallel precision departure in two bearings 102 centers is concerning the quality of image quality, and center, the axle sleeve 101 both sides accuracy relation on bare engine module 10 bodies the overall precision after bearing 102 is assembled, and therefore how to obtain a optimum state, is the target that each manufacturer makes great efforts always.And the design of the axle sleeve on the bare engine module body is at present considered mould structure complexity, withdrawing pattern degree, ejection formation and finished product structural strength roughly to be divided into following dual mode:
First kind of axle sleeve structure shown in Fig. 2 a, its structure characteristics is the central part 201 naked skies of axle sleeve 20, therefore in the working process of axle sleeve 20, by the moulding respectively of former and later two slide block (not shown)s, and shorter because of slide block, so just can driving two slide blocks, deviates from the power when utilizing the demoulding along the pilot pin (not shown).So advantage is that ejection formation is easy, the initial stage concentricity precision still can be kept, and need not extra assisting agency.But shortcoming then is a slide block directly to be contacted with the pilot pin (not shown), can produce abrasion along with factors such as production time, quantity, causes concentricity precision to begin to produce and departs from.In addition, because of the naked sky of central part, so the intensity of finished product structure is relatively poor.
And second kind of axle sleeve structure shown in Fig. 2 b, its structure characteristics is the not naked sky of the central part 211 of axle sleeve 21.Therefore in the working process of axle sleeve 21, axle sleeve comes straight forming by slide block single and that diameter is consistent, so advantage is the concentricity precision height, the finished product structural strength is stronger, and mould structure is comparatively simple.But because of slide block longer, so shortcoming is then for needing extra auxiliary (oil pressure) mechanism come driving sliding block to deviate from, and because of the diameter unanimity of slide block, several near-zero so the withdrawing pattern degree is very little, so ejection formation is difficulty comparatively, aperture, axle sleeve rear and front end is often variant, causes the precision after the assembling wayward.
From the above, the axle sleeve forming method is different with structure, will have a strong impact on the scanning quality and the durability of IMAGE SCANNERS, and how to improve the shortcoming of above-mentioned prior art means, is to propose main purpose of the present invention.
Summary of the invention
The present invention is a kind of shaft sleeve structure, be applicable to the modular unit that slides along a guide rod, this shaft sleeve structure comprises: an open-work, penetrate this modular unit and be divided into one first cutout portion, one second cutout portion and a central section, the internal diameter of this first cutout portion is greater than the internal diameter of this second cutout portion, and being changed to of the internal diameter of this central section: near the internal diameter at this first cutout portion place greater than internal diameter near this second cutout portion place; One clutch shaft bearing, its external diameter are sleeved on this first cutout portion, and internal diameter then is sleeved on this guide rod; And one second bearing, being sleeved on this second cutout portion, its external diameter is sleeved on this second cutout portion, and size equals the internal diameter of this clutch shaft bearing and also is sleeved on this guide rod.
Preferably, the internal diameter varies of this open-work central section is in the shaft sleeve structure: be linear or non-linear successively decreasing by the first cutout portion place to second cutout portion.
Preferably, the material of the bearing in the shaft sleeve structure is a metal.
Preferably, this modular unit that shaft sleeve structure was suitable for is the bare engine module unit in the IMAGE SCANNERS.
Preferably, this modular unit that shaft sleeve structure was suitable for is the bare engine module unit in the COPY MACHINES.
Preferably, this modular unit that shaft sleeve structure was suitable for is the print-head die module unit in the printer.
Another aspect of the invention is a kind of axle sleeve manufacture method, be applicable on the modular unit that slides along a guide rod, this method step comprises: a slide block is provided, this slide block includes one first section, a cutout portion and a central section, the external diameter of this first section is greater than the external diameter of this second section, and being changed to of the external diameter of this central section: near the external diameter at this first section place greater than external diameter near this second section place; First section, second section and central section with this slide block when forming this modular unit coat wherein; Provide a driving force that this slide block is extracted out towards the direction of this first section by this second section, and then on this modular unit, limit an open-work; And with a clutch shaft bearing and second bearing overlaps respectively should the both-side opening end of open-work, the internal diameter equal and opposite in direction of described bearing and being sleeved on this guide rod.
Preferably, the internal diameter varies of this slide block central section is in the axle sleeve manufacture method: be linear decrease by the first cutout portion place to second cutout portion.
Preferably, the material of bearing described in the axle sleeve manufacture method is a metal.
Preferably, the material of bearing described in the axle sleeve manufacture method is a plastic cement.
Preferably, this modular unit of being suitable for of axle sleeve manufacture method is the bare engine module unit in the IMAGE SCANNERS.
Preferably, this modular unit of being suitable for of axle sleeve manufacture method is the bare engine module unit in the COPY MACHINES.
Preferably, this modular unit of being suitable for of axle sleeve manufacture method is the print-head die module unit in the printer.
Preferably, this driving force is provided by an oil hydraulic cylinder in the axle sleeve manufacture method.
Preferably, this modular unit is finished by injection molding method in the axle sleeve manufacture method.
Preferably, this modular unit is finished by the die cast mode in the axle sleeve manufacture method.
Description of drawings
Fig. 1 a: the organigram that the bearing base of IMAGE SCANNERS inside and guide rod cooperatively interact.
Fig. 1 b: bearing base is sleeved on the structure section schematic representation of axle sleeve required on the guide rod 101 and bearing 102.
Fig. 2 a: first kind of axle sleeve structure schematic representation of the prior art.
Fig. 2 b: second kind of axle sleeve structure schematic representation of the prior art.
Fig. 3: preferred embodiment of the present invention is arranged at the axle sleeve structure generalized section on the modular unit.
Fig. 4: the local enlarged diagram of preferred embodiment of the present invention.
Each element that is comprised in the accompanying drawing of the present invention lists as follows:
Axle sleeve 20 central parts 201
Axle sleeve 21 central parts 211
First cutout portion, 301 second cutout portion 302
Central section 303 clutch shaft bearings 31
Second bearing, 32 guide rods 33
The preferred embodiment explanation
Seeing also Fig. 3, is that preferred embodiment of the present invention is arranged at the axle sleeve structure generalized section on the modular unit 30.Find out that by knowing among the figure it is mainly finished by an open-work 300 that penetrates on this modular unit 30, mainly is divided into one first cutout portion 301, one second cutout portion 302 and a central section 303.More can know by enlarged diagram shown in Figure 4 again and find out, the internal diameter of this first cutout portion 301 is greater than the internal diameter of this second cutout portion 302, and the variation of the internal diameter of this central section 303 is linear or non-linear successively decreasing by first cutout portion, 301 places to second cutout portion 302.
Clutch shaft bearing 31 is inserted by first end of this open-work 300, its external diameter fixedly is sleeved on this first cutout portion 301, internal diameter then slides and is sleeved on guide rod 33, and second bearing 32 is inserted by second end of this open-work 300 in addition, its external diameter is inserted by first end of this open-work 300 and is sleeved on this second cutout portion 302, and equal and opposite in direction also slides in the internal diameter of this clutch shaft bearing and is sleeved on this guide rod 33.And the material of above-mentioned bearing can be metal or plastic cement.
And as shown in the above description, the making method of axle sleeve structure of the present invention is as the existing method of Fig. 2 (b), and this modular unit 30 is mainly finished by injection molding method.Can drive single slide block straight forming by the driving force that an oil hydraulic cylinder is provided, so except keeping its advantage (concentricity precision height, the finished product structural strength is stronger, mould structure is comparatively simple) outside, still inconsistent because of diameter before and after the slide block, wherein first demoulding end (far-end) diameter is less, back demoulding end (near-end) diameter is bigger, so it is zero degree that the withdrawing pattern degree of a zonule is only arranged at two ends, all the other parts broad in the middle then have bigger withdrawing pattern degree, therefore the demoulding of ejection formation is easy, penetrate finished product and assembly precision and obtain control easily,, and then effectively solve the shortcoming of prior art so its die life and precision are all higher.In addition, aforementioned modules unit 30 also can be finished by the die cast mode.
And shaft sleeve structure of the present invention, this modular unit that it was suitable for can be bare engine module unit, the bare engine module unit in the COPY MACHINES or the print-head die module unit in the printer in the IMAGE SCANNERS.
Claims (14)
1. a shaft sleeve structure is applicable to the modular unit that slides along a guide rod, it is characterized in that, this shaft sleeve structure comprises:
Open-work, penetrate this modular unit and be divided into one first cutout portion, one second cutout portion and a central section, the internal diameter of this first cutout portion is greater than the internal diameter of this second cutout portion, and being changed to of the internal diameter of this central section: near the internal diameter at this first cutout portion place greater than internal diameter near this second cutout portion place;
Clutch shaft bearing, its external diameter are sleeved on this first cutout portion, and internal diameter then is sleeved on this guide rod; And
Second bearing is sleeved on this second cutout portion, and its external diameter is sleeved on this second cutout portion, and equal and opposite in direction also is sleeved on this guide rod in the internal diameter of this clutch shaft bearing.
2. shaft sleeve structure as claimed in claim 1 is characterized in that, the internal diameter varies of this open-work central section is: be linear decrease by the first cutout portion place to second cutout portion.
3. shaft sleeve structure as claimed in claim 1 is characterized in that, the internal diameter varies of this open-work central section is: be non-linear by the first cutout portion place to second cutout portion and successively decrease.
4. shaft sleeve structure as claimed in claim 1 is characterized in that the material of described bearing is selected from one of plastic cement and metal.
5. shaft sleeve structure as claimed in claim 1 is characterized in that, this modular unit that it was suitable for is the bare engine module unit in the IMAGE SCANNERS.
6. shaft sleeve structure as claimed in claim 1 is characterized in that, this modular unit that it was suitable for is the bare engine module unit in the COPY MACHINES.
7. shaft sleeve structure as claimed in claim 1 is characterized in that, this modular unit that it was suitable for is the print-head die module unit in the printer.
8. axle sleeve manufacture method is applicable to that this method step comprises on the modular unit that slides along a guide rod:
One slide block is provided, this slide block includes one first section, a cutout portion and a central section, the external diameter of this first section is greater than the external diameter of this second section, and being changed to of the external diameter of this central section: near the external diameter at this first section place greater than external diameter near this second section place;
First section, second section and central section with this slide block when forming this modular unit coat wherein;
Provide a driving force that this slide block is extracted out towards the direction of this first section by this second section, and then on this modular unit, limit an open-work; And
With clutch shaft bearing and second bearing overlaps respectively should the both-side opening end of open-work, the internal diameter equal and opposite in direction of described bearing and being sleeved on this guide rod.
9. axle sleeve manufacture method as claimed in claim 8 is characterized in that, the internal diameter varies of this slide block central section is: be linear decrease or non-linear successively decreasing by the first cutout portion place to second cutout portion.
10. axle sleeve manufacture method as claimed in claim 8 is characterized in that the material of described bearing is selected from one of plastic cement and metal.
11. axle sleeve manufacture method as claimed in claim 8 is characterized in that, this modular unit that it was suitable for is the bare engine module unit in the IMAGE SCANNERS.
12. axle sleeve manufacture method as claimed in claim 8 is characterized in that this driving force is provided by an oil hydraulic cylinder.
13. axle sleeve manufacture method as claimed in claim 8 is characterized in that this modular unit is finished by injection molding method.
14. axle sleeve manufacture method as claimed in claim 8 is characterized in that this modular unit is finished by the die cast mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01124246 CN1222702C (en) | 2001-08-17 | 2001-08-17 | Shaft sleeve structure and making method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01124246 CN1222702C (en) | 2001-08-17 | 2001-08-17 | Shaft sleeve structure and making method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1401917A true CN1401917A (en) | 2003-03-12 |
| CN1222702C CN1222702C (en) | 2005-10-12 |
Family
ID=4665606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01124246 Expired - Fee Related CN1222702C (en) | 2001-08-17 | 2001-08-17 | Shaft sleeve structure and making method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1222702C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883624A (en) * | 2014-04-11 | 2014-06-25 | 太仓万冠涂装设备有限公司 | Shaft sleeve of roller coating device |
-
2001
- 2001-08-17 CN CN 01124246 patent/CN1222702C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883624A (en) * | 2014-04-11 | 2014-06-25 | 太仓万冠涂装设备有限公司 | Shaft sleeve of roller coating device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1222702C (en) | 2005-10-12 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: GUANGBAO TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: XULI CO., LTD. Effective date: 20030924 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20030924 Address after: Twelve floor, No. three, 156 Minsheng Road, Taipei, Taiwan Applicant after: Lite-On Technology Corporation Address before: 10 floor, section 25, Dunhua South Road, Taipei, Taiwan Applicant before: Xuli Co., Ltd. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051012 Termination date: 20130817 |