CN202147484U

CN202147484U - Printer and printing medium detection device

Info

Publication number: CN202147484U
Application number: CN201120203885U
Authority: CN
Inventors: 宋振华; 张政民; 王晓东
Original assignee: Shandong New Beiyang Information Technology Co Ltd
Current assignee: Shandong New Beiyang Information Technology Co Ltd
Priority date: 2011-06-16
Filing date: 2011-06-16
Publication date: 2012-02-22
Anticipated expiration: 2021-06-16

Abstract

The utility model discloses a printer and a printing medium detection device. The printing medium detection device is arranged in a paper feeding channel of the printer. The printing medium detection device includes screws which are arranged on the outside of the paper feeding channel along the width direction of the paper feeding channel, fixed seats which are drivingly connected with threads of the screws, and sensors which are fixed on the fixed seats and are used to detect a medium or a medium mark in the paper feeding channel. The printing medium detection device is simple in adjustment, and can make the sensor arranged on any position along the width direction of the paper feeding channel so as to detect a printing medium of any width and a printing mark of the printing medium.

Description

Printer and print-medium detecting device thereof

Technical field

The utility model relates to printer, is specifically related to a kind of print-medium detecting device and uses the printer of this device.

Background technology

In existing printer, transmit print media by connecting gear, survey the mark that whether has print media and survey on the print media by sensor and whether exist.In order to improve the medium adaptability of printer; Make it can adapt to the media type of different in width; Often sensor device is set to the adjustable version in position, can be according to the print media of different in width or the medium mark adjustment sensing station of diverse location.

Chinese patent CN201020637963.X discloses a kind of sensor device governor motion; As shown in Figure 1, the print media width is provided with holddown groove 3 ' in printer paper-feeding passage upper edge, and sensor cluster 1 ' is placed in the holddown groove 3 '; Location division 11 ' on the sensor cluster 1 with along the limiting section 31 ' snap fit of arranging on holddown groove 3 ' the long limit; Realize sensor cluster 1 ' position crosswise fixed, when regulating sensor cluster 1 ' position, need first removal sensor assembly 1 '; It is separated with original limiting section 31 ' that cooperates, and clamping matches with the limiting section 31 ' of needs in the location division 11 ' of sensor installation assembly 1 ' again.

The problem of this sensor device adjustment structure is that when regulating sensing station, installation steps are complicated, inconvenient operation.Simultaneously, the position of the limited location position portion 31 ' of sensor cluster 1 ' limits, and sensor cluster 1 ' setpoint distance at interval moves, and can not move continuously, and therefore, the adjusting position of sensor cluster 1 is limited.

The utility model content

The purpose of the utility model is to provide a kind of printer that can regulate the print-medium detecting device of sensing station easily continuously and use this device.

For this reason, the utility model provides a kind of print-medium detecting device on the one hand, is arranged in the paper feed passage of printer, comprising: screw rod, edge and paper feed channel width direction are arranged on the outside of paper feed passage; Holder is in transmission connection with screw flight; And sensor, be fixed on the holder, detect medium or medium mark in the paper feed passage.

Further, the outside of above-mentioned paper feed passage is provided with first location division and second location division of space, and sensor moves along the paper feed channel width direction between first location division and second location division.

Further, the end of above-mentioned screw rod is provided with thumb wheel.

Further, on the sidewall of the formation paper feed passage between above-mentioned first location division and second location division, offer the elongated slot that extends along the paper feed channel width direction, sensor cooperates with the elongated slot order.

Further, above-mentioned elongated slot is provided with transparent cover plate.

Further, the outside that constitutes the sidewall of above-mentioned paper feed passage is provided with first bearing and second bearing, and first screw rod is supported on first bearing and second bearing rotationally, and the fixed seating is between first bearing and second bearing.

According to the utility model on the other hand; A kind of printer is provided; Comprise the first passage plate and the second channel plate that at interval are provided with and constitute the paper feed passage, wherein, also be included in described print-medium detecting device above the basis of first passage plate arranged outside.

The utility model also provides a kind of printer; Comprise the first passage plate and the second channel plate that are provided with and constitute the paper feed passage at interval; Wherein, also be included in be symmetrical set respectively outside the first passage plate outside and the second channel plate with good grounds above described print-medium detecting device.

Further, be provided with the holder synchronous moving mechanism between the screw rod of the print-medium detecting device in the screw rod of the print-medium detecting device outside the above-mentioned first passage plate and the second channel plate outside.

Further; Said fixing seat synchronous moving mechanism comprises: first gear that is connected with the screw rod of the print-medium detecting device in the first passage plate outside, second gear that is connected with the screw rod of print-medium detecting device outside the second channel plate, and the 3rd gear that all meshes with first gear and second gear.

In the utility model, the print-medium detecting device is arranged on a side or the both sides of the paper feed passage of printer, through trackwheel; Sensor is moved along the screw axis direction continuously; Therefore, need not removal sensor, can make sensor can be positioned at the optional position of paper feed channel width direction; Detect the mark of optional position on print media and the print media of any width, therefore improved convenience that sensing station regulates and print-medium detecting device adaptability medium.

Except top described purpose, characteristic and advantage, other purpose, characteristic and the advantage that the utlity model has are with combining accompanying drawing to do further detailed explanation.

Description of drawings

Constitute the preferred embodiment that the part of this specification, the accompanying drawing that is used for further understanding the utility model show the utility model, and be used for explaining the principle of the utility model with specification.Among the figure:

Fig. 1 is the structural representation of the sensor adjustment device of prior art;

Fig. 2 is to use the structural representation of the printer of the print-medium detecting device that the utility model provides;

Fig. 3 is the structural representation of print-medium detecting device first embodiment that provides of the utility model;

Fig. 4 is that print-medium detecting device A shown in Figure 3 is to section of structure;

Fig. 5 is the structural representation of the print-medium detecting device that provides of the utility model second embodiment; And

Fig. 6 is the left side view of print-medium detecting device shown in Figure 5.

The specific embodiment

Embodiment to the utility model is elaborated below in conjunction with accompanying drawing, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.

Fig. 2 is to use the section of structure of the printer of the print-medium detecting device that the utility model provides.As shown in Figure 2, the movable support 100 of printer is hinged on the frame 200, and frame 200 is opened or be closed relatively; The interior volume that forms in movable support 100 and frame 200 is provided with appearance paper assembly 300, is used to hold roll web.

Along the roll web throughput direction, the downstream holding paper assembly 300 are provided with print components 400, are used on print media, printing predefined print What.Print components 400 can be the hot print assembly; Can be print components such as pin type, ink-jet, laser also, print components 400 be hot print assemblies in the present embodiment, comprises printhead 410 and prints rubber roll 420; Wherein printhead 410 is fixed on the frame 200; Print rubber roll 420 and be fixed on the movable support 100, when movable support 100 was closed with respect to frame 200, printhead 410 was with to print rubber roll 420 tangent.Because print components such as traditional pin type, ink-jet, laser are provided with form and are well known to those skilled in the art, and its setting is little with the utility model relevance, therefore repeats no more.

Under printer transmission system (not drawing among the figure) drives; Print media P is calm, and paper assembly 300 is delivered to print components 400; Printer control system control printhead 410 is accomplished printing back print media and is seen off printer at surface of print media print image or literal.

Holding between paper assembly 300 and the print components 400; Be provided with first passage plate 610 and second channel plate 620; First passage plate 610 keeps at a certain distance away with second channel plate 620 and is oppositely arranged; Form the paper feed passage 600 of print media motion between the two, print media is carried along paper feed passage 600 length directions.

On first passage plate 610 and/or second channel plate 620, be provided with print-medium detecting device 500, be used to survey whether have print media in the paper feed passage 600, whether the mark of perhaps surveying on the print media exists.

Fig. 3 is the structural representation of print-medium detecting device first embodiment that provides of the utility model, and Fig. 4 is that print-medium detecting device A shown in Figure 3 is to section of structure.In conjunction with reference to Fig. 2 to Fig. 4, in the present embodiment, print-medium detecting device 500 is connected with first passage plate 610, comprises first sensor assembly 1 and thumb wheel 2.Wherein first sensor assembly 1 is connected with first passage plate 610, is positioned at the side that first passage plate 610 deviates from paper feed passage 600; Thumb wheel 2 is connected with first sensor assembly 1, is used to regulate the position of sensor.

Particularly, on first passage plate 610, the length and the maximum printing medium width that are provided with first elongated slot, 611, the first elongated slots 611 along the print media width are suitable; Both sides, long limit at first elongated slot 611; Be provided with first location division 612 and second location division 613; First location division 612 and second location division 613 are provided with perpendicular to first passage plate 610; Be positioned at the side that first passage plate 610 deviates from paper feed passage 600, and extend to direction away from paper feed passage 600; Minor face both sides (i.e. near position the two ends of first elongated slot) at first elongated slot 612; Be provided with first bearing 614 and second bearing 615; First bearing 614 and second bearing 615 are provided with perpendicular to first passage plate 610; Be positioned at the side that first passage plate 610 deviates from paper feed passage 600, and extend to direction away from paper feed passage 600.

First sensor assembly 1 comprises first screw rod 11, first holder 12 and first sensor 13.Wherein first screw rod 11 is provided with along paper feed passage 600 widths (being the print media width); First bearing 614 and second bearing 615 of the two ends of first screw rod 11 and first passage plate 610 are hinged; Can freely rotate around self axis, on first screw rod 11, be provided with screw thread vertically; First holder 12 be provided with first screw rod 11 on the screwed hole 121 of screw thread corresponding matching; The screwed hole 121 of first holder 12 passes first screw rod 11 and first screw rod, 11 screw threads are in transmission connection; When first screw rod 11 rotated, first holder 12 can be along 11 axially-movables of first screw rod; First sensor 13 is fixedly connected with first holder 12; Between first location division 612 and second location division 613 of first passage plate 610; First elongated slot 611 that the test section of first sensor 13 sees through on the first passage plate 610 is relative with the second channel plate 620 of paper feed passage 600; Be used to detect whether have print media in the paper feed passage 600, whether the mark that perhaps detects on the print media exists.

Receive the restriction of first location division 612 and second location division 613, when first screw rod 11 rotated, the length direction that first holder 12 can only drive first sensor 13 edges first elongated slot 611 moved.Need to prove that first location division 612 on the first passage plate 610 and second location division 613 also can cooperate with first holder 12, directly limit first holder 12 and can only move along the length direction of first elongated slot 611.

The coaxial fixed connection of one end of thumb wheel 2 and first screw rod 11; When trackwheel 2; First screw rod 11 is rotated thereupon; First holder 12 that is in transmission connection with first screw rod, 11 screw threads receives

first location division

612 and 613 restrictions of second location division on the first passage plate 610; Move continuously along the axis direction of first screw rod 11 thereupon, thereby can regulate the relative position between the width of first sensor 13 and print media, it is mated or corresponding with the width of print media with the mark of print media.

Need to prove that first sensor 13 can be a mechanical sensor, can be electro-optical pickoff also, and what adopt in the present embodiment is photoelectric sensor.

Preferably, in other embodiment that the utility model provides, can also comprise cover plate 3; As shown in Figure 4; Cover plate 3 is a colourless transparent material, with first elongated slot, 611 snap fit on the first passage plate 610, first sensor 13 see through that cover plate 3 surveys whether print media in the paper feed passages 600 exist and print media on mark whether exist; Through cover plate 3 is set; Make print media more smooth and easy through first elongated slot 611 time, simultaneously, also avoided the test section of contamination by dust first sensor 13.

In the print-medium detecting device that present embodiment provides; Through rotation thumb wheel 2, first screw rod 11 is rotated thereupon, it is mobile continuously along the axis direction of first screw rod 11 to drive first holder, the 12 drive first sensors 13 that are threaded with first screw rod 11; Thereby the relative position between the width of adjusting first sensor 13 and print media; Compare prior art, the print-medium detecting device that present embodiment provides can be positioned at the optional position of paper feed channel width direction easily, thus the mark of optional position on the print media of detection any width or the print media; Therefore, therefore improved the adaptability of print-medium detecting device to medium.

Fig. 5 is the structural representation of the print-medium detecting device that provides of the utility model second embodiment, and Fig. 6 is the left side view of print-medium detecting device shown in Figure 5.Like Fig. 5 and shown in Figure 6; Comparing difference with first embodiment is; The print-medium detecting device also comprises second sensor cluster 4 in the present embodiment; Second sensor cluster 4 is connected with second channel plate 620, is positioned at the side that second channel plate 620 deviates from paper feed passage 600, and second sensor cluster 4 is in transmission connection through driving gear set 5 (being the holder synchronous moving mechanism) with first sensor assembly 1.

Particularly, on the second channel plate 620, with first elongated slot, the 611 corresponding length of second elongated slot, 621, the second elongated slots 621 and the equal in length of first elongated slot 611 of being provided with; Both sides, long limit at second elongated slot 621; Be provided with the 3rd limiting section 622 and the 4th limiting section 623; The 3rd limiting section 622 and the 4th limiting section 623 are provided with perpendicular to second channel plate 620; Be positioned at the side that second channel plate 620 deviates from paper feed passage 600, and extend to direction away from paper feed passage 600; Minor face both sides at second elongated slot 621; Be provided with the 3rd bearing 624 and the 4th bearing 625; The 3rd bearing 624 and the 4th bearing 625 are provided with perpendicular to second channel plate 620, are positioned at the side that second channel plate 620 deviates from paper feed passage 600, and extend to the direction away from paper feed passage 600.

Second sensor cluster 4 comprises second screw rod 41, second holder 42 and second sensor 43.Second sensor cluster 4 is identical with the version and the operation principle of first sensor assembly 1, repeats no more at this.Need to prove; The first sensor 13 and second sensor 43 can be respectively the optical transmitting set and the optical receiver of transmission sensor; Optical transmitting set is corresponding with second elongated slot 621 through first elongated slot 611 with optical receiver; Be used to detect whether have print media in the paper feed passage, whether the mark that perhaps detects on the print media exists.

Driving gear set 5 comprises first gear 51, second gear 52 and the 3rd gear 53, and wherein first gear 51 is fixedly connected with an end of first screw rod 11 of first sensor assembly 1; Second gear 52 is fixedly connected with an end of second screw rod 41 of second sensor cluster 4; The 3rd gear 53 articulates with the gear shaft 531 that is fixed on first passage plate 610 or the second channel plate 620, and while and first gear 51 and second gear, 52 engaged transmission.

Thumb wheel 2 can be fixedly connected with among both any one of first screw rod 11 and second screw rod 41, can also be fixedly connected with the 3rd gear 53.Thumb wheel 2 is fixedly connected with the 3rd gear 53 in the present embodiment.

When trackwheel 2; Driving the 3rd gear 53 rotates synchronously; First gear 51 and second gear 52 of drive and the 3rd gear 53 engaged transmission rotate synchronously; Rotate with first gear 51 and second gear 52 respectively with first screw rod 11 and second screw rod 41 that first gear 51 is fixedly connected with second gear 52; First holder 12 that is threaded with first screw rod 11 and second holder 42 that is threaded with second screw rod 41 move along the axis direction of screw rod simultaneously; Thereby can regulate the relative position between the width of first sensor 13 and second sensor 43 and print media simultaneously, make itself and the width coupling of print media or corresponding with the mark of print media.

The print-medium detecting device that present embodiment provides; In paper feed passage both sides the two sensors assembly is set; Therefore the two sensors assembly, only passes through trackwheel through the driving gear set interlock; Sensor in the two sensors assembly is moved synchronously continuously; Position adjustments when optical transmitting set and the optical receiver that therefore can adapt to transmission-type photoelectric sensor is installed in the print media both sides respectively, not only easy and simple to handle, and further improved the adaptability of print-medium detecting device to medium.

The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.

Description of reference numerals

100 movable supports, 200 frames

300 hold paper assembly 400 print components

410 printheads 420 are printed rubber roll

610 first passage plates, 620 second channel plates

600 paper feed passages, 1 first sensor assembly

11 first screw rods, 12 first holders

13 first sensors, 121 screwed holes

613 second location divisions, 612 first location divisions

611 first elongated slots, 2 thumb wheels

3 cover plates, 4 second sensor clusters

5 transition gear groups, 621 second elongated slots

622 the 3rd limiting sections 623 the 4th limiting section

624 the 3rd bearings 625 the 4th bearing

41 second screw rods, 42 second holders

43 second sensors, 51 first gears

52 second gears 53 the 3rd gear.

Claims

1. a print-medium detecting device is arranged in the paper feed passage of printer, it is characterized in that, comprising:

Screw rod, the said paper feed width of channel direction in edge is arranged on the outside of said paper feed passage;

Holder is in transmission connection with said screw flight; And

Sensor is fixed on the said holder, detects medium or medium mark in the said paper feed passage.

2. print-medium detecting device according to claim 1 is characterized in that,

Wherein, the outside of said paper feed passage is provided with first location division and second location division of space, and said sensor moves along said paper feed channel width direction between said first location division and second location division.

3. print-medium detecting device according to claim 2; It is characterized in that; On the sidewall of the said paper feed passage of formation between said first location division and second location division, offer the elongated slot that extends along said paper feed channel width direction, said sensor matches with said elongated slot.

4. print-medium detecting device according to claim 3 is characterized in that said elongated slot is provided with transparent cover plate.

5. print-medium detecting device according to claim 2; It is characterized in that; The outside that constitutes the sidewall of said paper feed passage is provided with first bearing and second bearing; Said screw rod is supported on said first bearing and second bearing rotationally, and said fixed seating is between said first bearing and second bearing.

6. print-medium detecting device according to claim 2 is characterized in that the end of said screw rod is provided with thumb wheel.

7. printer comprises the first passage plate and the second channel plate that are provided with and constitute the paper feed passage at interval, it is characterized in that, also be included in said first passage plate arranged outside according to each described print-medium detecting device in the claim 1 to 6.

8. printer; Comprise the first passage plate and the second channel plate that are provided with and constitute the paper feed passage at interval; It is characterized in that, be symmetrical set each described print-medium detecting device in the with good grounds claim 1 to 6 outside also being included in the said first passage plate outside and second channel plate.

9. printer according to claim 8 is characterized in that, is provided with the holder synchronous moving mechanism between the screw rod of the screw rod of the print-medium detecting device in the said first passage plate outside and the print-medium detecting device in the said second channel plate outside.

10. printer according to claim 9; It is characterized in that; Said holder synchronous moving mechanism comprises: first gear that is connected with the screw rod of the print-medium detecting device in the said first passage plate outside, second gear that is connected with the screw rod of print-medium detecting device outside the said second channel plate, and the 3rd gear that all meshes with said first gear and second gear.