CN102729655A

CN102729655A - Adjusting device for printer

Info

Publication number: CN102729655A
Application number: CN2011100820045A
Authority: CN
Inventors: 黄肆海
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2011-04-01
Filing date: 2011-04-01
Publication date: 2012-10-17

Abstract

Disclosed is an adjusting device for printers, comprising a cam shaft, a rack slidingly installed on a bearing and a composite gear. The cam shaft is connected with the composite gear engaging with the rack and includes a cam used for contacting a bracket and provided with two different outer edges. When the rack slides, the composite gear is driven to rotate and then the cam is driven to rotate, and therefore the bracket contacts different outer edges and the distance between the bracket and the bearing is changed.

Description

The adjusting device of printer

Technical field

The present invention relates to the printer field, relate in particular to a kind of adjusting device of printer.

Background technology

The printhead and the distance between the print platform of printer are one of important parameters that influences print quality.The printhead of existing printer and the distance between the print platform are adjusted through slide block mechanism, yet, adjust said slide mechanism through slide block mechanism and take bigger space.

Summary of the invention

In view of above content, be necessary to provide a kind of adjusting device of the little printer that takes up room.

A kind of adjusting device of printer; Said adjusting device comprises that a camshaft, is used to be slidingly mounted on a tooth bar and the compound gear on the bearing; Said camshaft connects said compound gear; Said compound gear and the engagement of said tooth bar, said camshaft comprises that one is used to contact the cam of a support, said cam has two different outer rims; Said tooth bar drives said compound gear rotation when sliding rotate said cam, changes the distance with said bearing so that said support contacts different outer rims.

Preferably, said camshaft comprises that one connects the locking part of said cam, and said compound gear is provided with the draw-in groove of the said locking part of an engaging.

Preferably, said camshaft can separate with said compound gear in the direction of a rotational plane of a vertical said compound gear.

Preferably, said camshaft also comprises the bar portion that extends to form from said locking part, and said bearing comprises an installation portion, and said installation portion is provided with the through hole of a corresponding said bar portion, and said bar portion inserts in the said through hole.

Preferably; Said adjusting device also comprise one be sheathed on said bar portion the knob that engages with said bar portion of flexible member and; Said flexible member is between said installation portion and the said knob, and said cam and said flexible member are in the relative both sides of said installation portion.

Preferably, said adjusting device also comprises a fastener, and said bar portion offers a fluting, and said fastener passes said fluting and engages said knob.

Preferably, said fastener takes the shape of the letter U, and said fastener comprises a junction and two clamping parts that extend to form from the relative both sides of said connecting portion, and said clamping part engages said knob.

Preferably, said bearing comprises a support portion, and said support portion comprises the location convex body of a bar shaped, and said tooth bar is provided with the locating slot of a corresponding said location convex body.

Compared with prior art, the adjusting device of above-mentioned printer changes the distance of said support and bearing through rotating cam, thus the purpose that realizes regulating printhead.

Description of drawings

Fig. 1 is the three-dimensional exploded view of printer preferred embodiments of the present invention.

Fig. 2 is the three-dimensional exploded view of adjusting device among Fig. 1.

Fig. 3 is another three-dimensional exploded view of adjusting device among Fig. 1.

Fig. 4 is that adjusting device is assembled in the three-dimensional assembly diagram on the bearing among Fig. 1.

Fig. 5 is the state diagram that Fig. 4 middle rack slides.

Fig. 6 is the three-dimensional assembly diagram of Fig. 1.

The main element symbol description

Adjusting device	10
		Camshaft	11
Cam	111
		First outer rim	1111
Second outer rim	1112
		The locking part	112
Bar portion	113
		Clamping part	1131
Fluting	1132
		Flexible member	12
Fastener	13
		Connecting portion	131
Clamping part	132
		Grab	1321
Tooth bar	14
		The support portion	141
Engaging piece	142
		Teeth groove	1421
Locating slot	143
		Compound gear	15
The matching part	151
		Draw-in groove	1511
External gear	152
		Construction opening	1522
Knob	16
		Hole clipping	161
Support	30
		Rack body	31
Slide plate	32
		Bearing	50
Support body	51
		Installation portion	52
Connecting portion	521
		The support portion	522
The location convex body	5221

The following specific embodiment will combine above-mentioned accompanying drawing to further specify the present invention.

The specific embodiment

See also Fig. 1, Fig. 2 and Fig. 3, a preferred embodiments of printer of the present invention comprises a support 30, a bearing 50 and is installed on the adjusting device 10 on the said bearing 50.Be equiped with a printhead (figure does not show) on the said bearing 50.

Said adjusting device 10 comprises a camshaft 11, a flexible member 12, a fastener 13, a tooth bar 14, a compound gear 15 and a knob 16.

Said camshaft 11 comprises the bar portion 113 that a cam 111, extends to form from said locking part 112 from the locking part 112 and that said cam 111 extends to form.Said bar portion 113 comprises a clamping part 1131, and said clamping part 1131 is provided with a fluting 1132 and makes said clamping part 1131 be two halves to separate shape.Said cam 111 is provided with one first outer rim 1111 and one second outer rim 1112.In the present embodiment, said flexible member 12 is a spring, and said locking part 112 is gear-like.Said fastener 13 takes the shape of the letter U, and said fastener 13 comprises a junction 131 and two clamping parts 132 that extend to form from said connecting portion 131 relative both sides, and each clamping part 132 comprises a grab 1321.

Said tooth bar 14 comprises a support portion 141 and an engaging piece 142, and said engaging piece 142 is provided with a plurality of teeth groove 1421.Said tooth bar 14 also is provided with the locating slot 143 of a bar shaped.Said compound gear 15 comprises that a matching part 151 and connects the external gear 152 of said matching part 151.Said external gear 152 and said matching part 151 concentrics, the external diameter of said external gear 152 is greater than the external diameter of said matching part 151.Said external gear 152 is provided with a plurality of external tooths 1521 that are used to mesh said teeth groove 1421.Be provided with a construction opening 1522 in the middle of the said external gear 152, said matching part 151 is provided with one and is the draw-in groove 1511 that gear-like is used to engage said locking part 112.Said draw-in groove 1511 is communicated with said construction opening 1522 said knobs 16 and is provided with hole clipping 161, and said hole clipping 161 is used to engage said clamping part 1131.

Said support 30 comprises that a rack body 31 and connects the slide plate 32 of said rack body 31.Said bearing 50 comprises that a support body 51 and connects the installation portion 52 of said support body 51.Said bearing 50 is installed on the main shaft (figure does not show), and said printhead and said installation portion 52 are in the both sides of main shaft, when the position of said installation portion 52 descends, rises on the position of said printhead.Said installation portion 52 is L-shaped, said installation portion 52 comprise one connect said support body 51 connecting portion 521 and from support portion 522 that said connecting portion 521 extends to form.Said connecting portion 521 is provided with a through hole 5211.Said support portion 522 comprises the location convex body 5221 of the locating slot 143 of a corresponding said tooth bar 14.Said location convex body 5221 is bar shaped.

See also Fig. 1 to Fig. 6 and assembled said adjusting device 10,, thereby said tooth bar 14 is slidingly mounted on the said bearing 50 earlier with location convex body 5221 couplings of locating slot 143 with the said bearing 50 of said tooth bar 14 in 50 last times of said bearing.The bar portion of said camshaft 11 113 is passed draw-in groove 1511 and the construction opening 1522 of said compound gear 15 and the locking part 112 of said camshaft 11 is engaged with said draw-in groove 1511 along the direction of the rotational plane of a vertical said external gear 152.The through hole 5211 of said bearing 50 is passed in the bar portion 113 of said camshaft 11, at this moment, teeth groove 1421 engagements of said external gear 152 and said tooth bar 14, said matching part 151 is placed on the support portion 141 of said tooth bar 14.Said flexible member 12 is set in said bar portion 113; Again said knob 16 is set in said bar portion 113 and engages with said clamping part 1131; The clamping part 132 of the said fastener 13 of last inwardly extruding and make it pass said knob 16 and said fluting 1132 is decontroled said clamping part 132 and said clamping part 132 is engaged with said knob 16.

When the bearing 50 after the assembling is assembled with said support 30; The slide plate 32 of said support 30 is conflicted on the cam 111 of said adjusting device 10; When said bearing 50 is regulated automatically; When said tooth bar 14 moved with said bearing 50, said tooth bar 14 drove said camshaft 11 and rotates, thus the difference of the outer rim of the cam 111 of said the camshaft 11 and relative position of said support 30 and said bearing 50 is changed make the change in location that is installed on the printhead on the said bearing 50.The installation portion 52 that relies on said bearing 50 is pushed said knob 16; Said flexible member 12 shrinks; Separate with the draw-in groove 1511 of said compound gear 15 locking part 112 of said camshaft 11, rotates the distance that said camshaft 11 gets final product between said bearing 50 of manual adjustments and the said support 30.

To those skilled in the art, can combine the actual needs of production to make other corresponding changes or adjustment according to invention scheme of the present invention and inventive concept, and these changes and adjustment all should belong to the protection domain of claim of the present invention.

Claims

1. the adjusting device of a printer; Said adjusting device comprises that a camshaft, is used to be slidingly mounted on a tooth bar and the compound gear on the bearing; Said camshaft connects said compound gear; Said compound gear and the engagement of said tooth bar, said camshaft comprises that one is used to contact the cam of a support, said cam has two different outer rims; Said tooth bar drives said compound gear rotation when sliding rotate said cam, changes the distance with said bearing so that said support contacts different outer rims.

2. adjusting device as claimed in claim 1 is characterized in that: said camshaft comprises that one connects the locking part of said cam, and said compound gear is provided with the draw-in groove of the said locking part of an engaging.

3. adjusting device as claimed in claim 2 is characterized in that: said camshaft can separate with said compound gear in the direction of a rotational plane of a vertical said compound gear.

4. adjusting device as claimed in claim 3; It is characterized in that: said camshaft also comprises the bar portion that extends to form from said locking part; Said bearing comprises an installation portion, and said installation portion is provided with the through hole of a corresponding said bar portion, and said bar portion inserts in the said through hole.

5. adjusting device as claimed in claim 4; It is characterized in that: said adjusting device also comprise one be sheathed on said bar portion the knob that engages with said bar portion of flexible member and; Said flexible member is between said installation portion and the said knob, and said cam and said flexible member are in the relative both sides of said installation portion.

6. adjusting device as claimed in claim 5 is characterized in that: said adjusting device also comprises a fastener, and said bar portion offers a fluting, and said fastener passes said fluting and engages said knob.

7. adjusting device as claimed in claim 6 is characterized in that: said fastener takes the shape of the letter U, and said fastener comprises a junction and two clamping parts that extend to form from the relative both sides of said connecting portion, and said clamping part engages said knob.

8. adjusting device as claimed in claim 1 is characterized in that: said bearing comprises a support portion, and said support portion comprises the location convex body of a bar shaped, and said tooth bar is provided with the locating slot of a corresponding said location convex body.