CN214522864U - Printer paper feed roller height adjusting device - Google Patents
Printer paper feed roller height adjusting device Download PDFInfo
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- CN214522864U CN214522864U CN202120528532.8U CN202120528532U CN214522864U CN 214522864 U CN214522864 U CN 214522864U CN 202120528532 U CN202120528532 U CN 202120528532U CN 214522864 U CN214522864 U CN 214522864U
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- base
- adjusting device
- spring
- paper feed
- feed roller
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Abstract
The utility model provides a printer paper feed roller height adjusting device, include: the base, the ejector pin, be provided with the gliding spout from top to bottom of the axis of rotation that is used for the roller of form advancing on the base, the ejector pin can set up on the base with sliding from top to bottom, the lower tip of ejector pin is provided with the cyclic annular flange that contacts with the axis of rotation, when the ejector pin moves down for the base, the ejector pin drives the axis of rotation and moves down, make the high reduction of the roller of form advancing, through set up the spring on the ejector pin, make the both ends of spring support tightly on base and cyclic annular flange respectively, make the spring have the trend of ordering about the ejector pin and moving down, when the sudden change takes place in paper thickness, can realize the flexible adjustment of the roller height of form advancing through the flexible of spring, high durability and convenient use, difficult card paper, through the height of adjustment ejector pin, can conveniently adjust the height of the roller of form advancing, the control range of regulation is easy, the fault-tolerant rate is high.
Description
Technical Field
The utility model relates to a printer, concretely relates to printer paper feed roller height adjusting device.
Background
The paper feeding roller is an important part for conveying paper in the printer, and in order to facilitate paper conveying, the paper feeding roller needs to be tightly pressed on the paper, so that the paper is prevented from sliding relative to the paper feeding roller, and when the paper type is changed, the paper feeding roller needs to be adapted to the height of the paper feeding roller due to different paper thicknesses.
The pivot of the roller of current feeding is mostly set up on the regulating plate, through the rising of regulating plate or the height of reduction adjustment roller of feeding, but this kind of regulative mode is rigid adjustment, can only carry out regulation in advance, if the thickness of printing in-process paper takes place the sudden change, when phenomenons such as fold appear, very easily the card paper phenomenon appears, and it is inconvenient to use to, the regulation range is difficult to control, and the fault-tolerant rate is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming prior art's defect, providing one kind and having flexible regulatory function, difficult card paper, convenient to use, the easy control of regulation range, the high printer roller height regulating device that advances of fault-tolerant rate.
In order to achieve the above object, the utility model discloses a technical scheme is, printer paper feed roller height adjusting device, include:
the paper feeding device comprises a base, wherein a sliding groove for enabling a rotating shaft of a paper feeding roller to slide up and down is formed in the base;
the push rod is arranged on the base in a vertically sliding mode, an annular flange which is in contact with the rotating shaft is arranged at the lower end of the push rod, and when the push rod moves downwards relative to the base, the push rod drives the rotating shaft to move downwards, so that the height of the paper feeding roller is reduced;
the ejector rod is sleeved with a spring, two end parts of the spring respectively abut against the base and the annular flange, and the spring has a tendency of driving the ejector rod to move downwards.
Preferably, the upper end of the ejector rod is in threaded connection with a nut, the lower end face of the nut abuts against the upper end face of the base, and the nut is used for adjusting the position of the ejector rod in the vertical direction.
Preferably, the bottom surface of the annular flange is an arc surface, and the arc surface is matched with the outer circumferential surface of the rotating shaft.
Preferably, the height adjusting device for the paper feeding roller of the printer further comprises an adjusting bolt for adjusting the compression degree of the spring, and the lower end part of the adjusting bolt is abutted against the upper end part of the spring.
Further preferably, the adjusting bolt is screwed on the base.
Further preferably, a through hole is formed in the middle of the adjusting bolt, and the ejector rod penetrates through the through hole in a vertically sliding mode.
Preferably, the base is door frame-shaped, the base includes crossbeam and the stand that is located crossbeam both sides, the space between the stand forms the spout.
Preferably, the rotating shaft is sleeved with a bearing, an outer ring of the bearing is arranged in the sliding groove in a vertically sliding manner, and the annular flange abuts against the outer ring of the bearing.
Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
the utility model provides a printer paper feed roller height adjusting device, include: the base, the ejector pin, be provided with the gliding spout from top to bottom of the axis of rotation that is used for the roller of form advancing on the base, the ejector pin can set up on the base with sliding from top to bottom, the lower tip of ejector pin is provided with the cyclic annular flange that contacts with the axis of rotation, when the ejector pin moves down for the base, the ejector pin drives the axis of rotation and moves down, make the high reduction of the roller of form advancing, through set up the spring on the ejector pin, make the both ends of spring support tightly on base and cyclic annular flange respectively, make the spring have the trend of ordering about the ejector pin and moving down, when the sudden change takes place in paper thickness, can realize the flexible adjustment of the roller height of form advancing through the flexible of spring, high durability and convenient use, difficult card paper, through the height of adjustment ejector pin, can conveniently adjust the height of the roller of form advancing, the control range of regulation is easy, the fault-tolerant rate is high.
Drawings
Fig. 1 is a schematic front view of a preferred embodiment of the present invention.
Fig. 2 is a schematic left side view of fig. 1.
Fig. 3 is a schematic sectional view in the direction of a-a in fig. 1.
Wherein:
10. a base; 11. a chute; 12. a cross beam; 13. a column; 20. a top rod; 21. an annular flange; 211. a circular arc surface; 22. a spring; 23. a nut; 30. adjusting the bolt; 31. a through hole; 40. a bearing; 41. and an outer ring.
Detailed Description
The following detailed description of the preferred embodiments of the present invention is provided to enable those skilled in the art to more easily understand the advantages and features of the present invention, and to make clear and definite definitions of the protection scope of the present invention.
The up-down direction described in the present invention is the up-down direction in fig. 1.
As shown in fig. 1-3, the utility model provides a height adjusting device for paper feeding roller of printer, comprising: the paper feeding roller comprises a base 10, a push rod 20 and an adjusting bolt 30, wherein the base 10 is positioned at two end parts of a paper feeding roller, a chute 11 used for the rotation shaft of the paper feeding roller to slide up and down is arranged on the base 10, specifically, a bearing 40 is sleeved at the end part of the rotation shaft of the paper feeding roller, an outer ring 41 of the bearing 40 can be arranged in the chute 11 in a vertically sliding manner, the base 10 is in a door frame shape, the base 10 comprises a cross beam 12 and upright posts 13 positioned at two sides of the cross beam 12, a chute 11 is formed in a space between the upright posts 13, and the outer circumferential surface of the outer ring 41 of the bearing 40 is in line contact with the chute 11; the top rod 20 is arranged on the cross beam 12 in a vertically sliding manner, the lower end part of the top rod 20 is provided with an annular flange 21, the annular flange 21 abuts against the upper end part of an outer ring 41 of the bearing 40, the bottom surface of the annular flange 21 is an arc surface matched with the outer circumferential surface of the outer ring 41, when the top rod 20 moves downwards relative to the cross beam 12, the top rod 20 pushes the outer ring 41 of the bearing 40 downwards to drive the rotating shaft of the paper feeding roller to move downwards, and the height of the paper feeding roller is reduced.
In this embodiment, the top bar 20 is sleeved with a spring 22, two ends of the spring 22 respectively abut against the cross beam 12 and the annular flange 21, and the spring 22 has a tendency to drive the top bar 20 to move downward.
The cross beam 12 is further provided with an adjusting bolt 30 for adjusting the compression degree of the spring 22, the adjusting bolt 30 is in threaded connection with the cross beam 12, two end portions of the adjusting bolt 30 penetrate through the cross beam 12, a lower end portion of the adjusting bolt 30 is abutted against an upper end portion of the spring 22, a through hole 31 is formed in the middle of the adjusting bolt 30, the ejector rod 20 is arranged in the through hole 31 in a penetrating mode in a vertically sliding mode, the adjusting bolt 30 is screwed to adjust the compression degree of the spring 22, and therefore downward pressure applied to the bearing 40 by the spring 22 through the ejector rod 20 is adjusted.
A nut 23 is screwed to the upper end of the stem 20, the lower end surface of the nut 23 is pressed against the upper end surface of the base 10 by an adjusting bolt 30, and the nut 23 is used for adjusting the position of the stem 20 in the vertical direction.
Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
the utility model provides a printer roller height adjusting device that forms a paper, establish the spring through the cover on the ejector pin, make the both ends of spring support tightly on base and cyclic annular flange respectively, make the spring have the trend of ordering about the ejector pin and moving down, when paper thickness takes place the sudden change, can realize the flexible regulation of roller height that forms a paper through the flexible of spring, convenient to use is difficult for the card paper, through the height of adjustment ejector pin, can conveniently adjust the height of roller that forms a paper, the range of regulation is controlled easily, the fault-tolerant rate is high.
The above embodiments are only for illustrating the technical conception and the features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (8)
1. A height adjusting device for a paper feed roller of a printer includes:
the paper feeding device comprises a base, wherein a sliding groove for enabling a rotating shaft of a paper feeding roller to slide up and down is formed in the base;
the push rod is arranged on the base in a vertically sliding mode, an annular flange which is in contact with the rotating shaft is arranged at the lower end of the push rod, and when the push rod moves downwards relative to the base, the push rod drives the rotating shaft to move downwards, so that the height of the paper feeding roller is reduced;
the method is characterized in that:
the ejector rod is sleeved with a spring, two end parts of the spring respectively abut against the base and the annular flange, and the spring has a tendency of driving the ejector rod to move downwards.
2. A printer paper feed roller height adjusting device according to claim 1, characterized in that: the upper end of the ejector rod is in threaded connection with a nut, the lower end face of the nut abuts against the upper end face of the base, and the nut is used for adjusting the position of the ejector rod in the vertical direction.
3. A printer paper feed roller height adjusting device according to claim 1, characterized in that: the bottom surface of the annular flange is an arc surface, and the arc surface is matched with the outer circumferential surface of the rotating shaft.
4. A printer paper feed roller height adjusting device according to claim 1, characterized in that: the height adjusting device for the paper feeding roller of the printer further comprises an adjusting bolt for adjusting the compression degree of the spring, and the lower end part of the adjusting bolt is abutted against the upper end part of the spring.
5. The height adjusting device for a paper feed roller of a printer according to claim 4, wherein: the adjusting bolt is in threaded connection with the base.
6. The height adjusting device for a paper feed roller of a printer according to claim 4, wherein: the middle part of the adjusting bolt is provided with a through hole, and the ejector rod can be penetrated in the through hole in a vertical sliding mode.
7. A printer paper feed roller height adjusting device according to claim 1, characterized in that: the base is door frame shape, the base includes the crossbeam and is located the stand of crossbeam both sides, the space between the stand forms the spout.
8. A printer paper feed roller height adjusting device according to claim 1, characterized in that: the rotating shaft is sleeved with a bearing, the outer ring of the bearing is arranged in the sliding groove in a vertically sliding mode, and the annular flange abuts against the outer ring of the bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120528532.8U CN214522864U (en) | 2021-03-12 | 2021-03-12 | Printer paper feed roller height adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120528532.8U CN214522864U (en) | 2021-03-12 | 2021-03-12 | Printer paper feed roller height adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214522864U true CN214522864U (en) | 2021-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120528532.8U Active CN214522864U (en) | 2021-03-12 | 2021-03-12 | Printer paper feed roller height adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214522864U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114084404A (en) * | 2021-11-20 | 2022-02-25 | 河南中烟工业有限责任公司 | Bearing self-adaptive adjusting device and lining paper accelerating wheel device comprising same |
-
2021
- 2021-03-12 CN CN202120528532.8U patent/CN214522864U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114084404A (en) * | 2021-11-20 | 2022-02-25 | 河南中烟工业有限责任公司 | Bearing self-adaptive adjusting device and lining paper accelerating wheel device comprising same |
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