CN102615995A

CN102615995A - Vertical printing mechanism for heat transfer printer

Info

Publication number: CN102615995A
Application number: CN2012100956321A
Authority: CN
Inventors: 迟建; 赵桉; 王德亮; 岳增顺; 郭学里
Original assignee: 迟建
Current assignee: Qufute Neon Electronics Technology Co., Ltd.
Priority date: 2012-04-01
Filing date: 2012-04-01
Publication date: 2012-08-01
Anticipated expiration: 2032-04-01
Also published as: CN102615995B

Abstract

The invention provides a vertical printing mechanism for a heat transfer printer. The vertical printing mechanism comprises a stand, wherein a transverse guide rail is mounted on the stand; a transverse guiding block is mounted on the transverse guide rail and is connected with a nut; the nut is mounted on a screw rod; the screw rod is connected with a driving motor through a driving member; a driving frame is mounted on the nut; planes and an inclined plane are sequentially arranged on the top surface of the driving frame in the axes direction of the screw rod; a first plane is higher than a second plane; a longitudinal guide rail is mounted on the stand; a longitudinal guiding block is mounted on the longitudinal guide rail and is connected with a lifting frame; a roller base is mounted on the bottom surface of the lifting frame; a roller is mounted on the roller base; the roller is in contact with the top surface of the driving frame; and a printing head is mounted on the top surface of the lifting frame. According to the vertical printing machine disclosed by the invention, the vertical precipitation can be realized by the printing head, the stroke of the printing head is effectively shortened, the time required by finishing one-time paper feeding and printing process is shortened, the increase on the work efficiency is facilitated, the position offset during printing can be avoided and high printing quality is obtained.

Description

The vertical printing mechanism of heat transfer printer

Technical field

The present invention relates to a kind of thermal transfer printer, the vertical printing mechanism of specifically a kind of heat transfer printer.

Background technology

The printhead driving mechanism that uses on the present existing thermal transfer printer all is to adopt the swing type structure; Printhead moves to the process of print position from the paper feed position; Because it is longer that swing arm drives the stroke of printhead swing; Therefore accomplish one-pass sheet-fedly need consume the long time, cause the operating efficiency of existing thermal transfer printer on the low side with print procedure.In addition; Because the swinging track of swing arm and the traffic direction out of plumb of paper and colour band; Therefore swing arm all is rocked to same position at every turn and prints in the time of must guaranteeing to print, otherwise the colour developing position can squint, but since the drive gap between swing arm and the driving member can't eliminate fully; Angle when causing swinging can't accurately be controlled, and influences print quality.

Summary of the invention

The purpose of this invention is to provide the vertical printing mechanism of a kind of heat transfer printer, it can make printhead realize vertically moving back and forth, and compares with existing swing type driving mechanism; Effectively shortened the stroke of printhead; Shortened and accomplished one-pass sheet-fed and the required time of print procedure, helped increasing work efficiency, the traffic direction of printhead is vertical with the traffic direction of paper and colour band; Can not squint by occurrence positions during printing, print quality is high.

The present invention realizes through following technical scheme: comprise frame, cross slide way is installed on the frame for realizing above-mentioned purpose; The laterally steering piece is installed on the cross slide way, and the laterally steering piece is connected with nut, and nut is installed on the leading screw; Leading screw is connected with drive motors through driving member, installing drive frame on the nut, and the bogie end face is disposed with first plane, first inclined-plane and second plane along the axis direction of leading screw; The height on first plane is higher than second plane, and longitudinal rail is installed on the frame, and the longitudinally guiding piece is installed on the longitudinal rail; The longitudinally guiding piece is connected with crane, and roller mount is installed in the crane bottom surface, and roller is installed on the roller mount; Roller contacts with the end face of bogie, and the crane end face is installed printhead.Said driving member has first synchronizing wheel that is connected with the drive motors output shaft, and second synchronizing wheel that is connected with leading screw, is connected through band synchronously between first synchronizing wheel and second synchronizing wheel.Said crane has transverse slat, and roller mount is installed in the transverse slat bottom surface, and roller is installed on the roller mount; The transverse slat rear side is installed back side panel; Back side panel is connected with the longitudinally guiding piece, and first side plate and second side plate are installed in the transverse slat two ends, and first side plate and the second side plate correspondence position are respectively offered two groups of bar holes; First carriage release lever and second carriage release lever are installed between two groups of bar holes; Mounting spring between first carriage release lever and second carriage release lever and the transverse slat, first carriage release lever all is connected with buffer board with second carriage release lever, and printhead is installed on the buffer board.The bogie end face is disposed with first plane, first inclined-plane, second plane along the axis direction of leading screw, second inclined-plane and the 3rd plane, and the height on first plane is higher than second plane, and the height on second plane is higher than the 3rd plane.

The invention has the advantages that: can make printhead realize vertically moving back and forth, compare, effectively shorten the stroke of printhead with existing swing type driving mechanism; Shortened and accomplished one-pass sheet-fed and the required time of print procedure; Help increasing work efficiency, the traffic direction of printhead is vertical with the traffic direction of paper and colour band, can not squint by occurrence positions during printing; Print quality is high; Printhead has certain cushion effect when contacting with colour band, can prevent that paper or colour band from being damaged by pressure by printhead, colour band easy accessibility etc.

Description of drawings

Fig. 1 is a structural representation of the present invention; Fig. 2 is the right TV structure sketch map of Fig. 1; Fig. 3 is the A-A sectional structure sketch map of Fig. 1.

The specific embodiment

The vertical printing mechanism of heat transfer printer of the present invention comprises frame 1, and cross slide way 2 is installed on the frame 1; Laterally steering piece 3 is installed on the cross slide way 2, and laterally steering piece 3 is connected with nut 4, and nut 4 is installed on the leading screw 5; Leading screw 5 is connected with drive motors 6 through driving member, installing drive frame 7 on the nut 4, and bogie 7 end faces are disposed with first plane 8, first inclined-plane 9 and second plane 10 along the axis direction of leading screw 5; The height on first plane 8 is higher than second plane 10, and longitudinal rail 11 is installed on the frame 1, and longitudinally guiding piece 12 is installed on the longitudinal rail 11; Longitudinally guiding piece 12 is connected with crane, and roller mount 28 is installed in the crane bottom surface, and roller 14 is installed on the roller mount 28; Roller 14 contacts with the end face of bogie 7, and the crane end face is installed printhead 30.Drive motors 6 drives bogies 7 through leading screw 5 with nut 4 and laterally moves, because bogie 7 end faces are provided with first plane 8, first inclined-plane 9 and second plane 10, so bogie 7 is when traversing; Can through roller 14 make crane drive printhead 30 longitudinally guide rail 11 move up and down, when roller 14 is positioned at 8 last times of first plane, this moment, the height of printhead 30 was at the highest notch; This position is a print position; Traversing along with bogie 7, roller 14 is reduced on second plane 10 along first inclined-plane 9, and this moment, printhead 30 was positioned at the paper feed position; Printhead 30 separates with colour band with paper, is convenient to paper feed.Drive motors 6 can be selected stepper motor or servomotor for use, realizes the accurate control to leading screw 5, for guaranteeing its accuracy, also can be on frame 1 installation site, relevant position sensor, verify whether bogie 7 is in correct position.

Driving member of the present invention can adopt multiple structure; Wherein preferred construction is: said driving member has first synchronizing wheel 15 that is connected with drive motors 6 output shafts; And between second synchronizing wheel, 16, the first synchronizing wheel 15 that are connected with leading screw 5 and second synchronizing wheel 16 through being with 17 to be connected synchronously.Advantages such as it is accurate that this structure has transmission, and noise is low, certain driving member of the present invention can also adopt other multiple structures such as chain sprocket or gear, but the transmission accuracy of these structures is limited, and noise is bigger, with preferred version gap to some extent.

The present invention has certain cushion effect in order to make printhead 30 when contacting with colour band; Can adopt following structure: said crane has transverse slat 18, and roller mount 28 is installed in transverse slat 18 bottom surfaces, and roller 14 is installed on the roller mount 28; Transverse slat 18 rear sides are installed back side panel 21; Back side panel 21 is connected with longitudinally guiding piece 12, and transverse slat 18 two ends are installed first side plate 19 and second side plate, 20, the first side plates 19 and second side plate, 20 correspondence positions and respectively offered two groups of bar holes 22; First carriage release lever 23 and second carriage release lever 24 are installed between two groups of bar holes 22; Mounting spring 25, the first carriage release levers 23 all are connected with buffer board 29 with second carriage release lever 24 between first carriage release lever 23 and second carriage release lever 24 and the transverse slat 18, and printhead 30 is installed on the buffer board 29.After printhead 30 arrives print position, colour band and paper are compressed, this moment, printhead 30 compressed spring 25, made printhead 30 have certain buffering, avoided colour band or paper are damaged by pressure.

The present invention carries out dismounting for the ease of the band of checking colors; Can be disposed with first plane 8, first inclined-plane 9, second plane 10 along the axis direction of leading screw 5 at bogie 7 end faces; Second inclined-plane 26 and the 3rd plane 27; The height that the height on first plane 8 is higher than 10, the second planes 10, second plane is higher than the 3rd plane 27.When needing the dismounting colour band; It is traversing that drive motors 6 drives bogie 7 through leading screw 5 and nut 4; Roller 14 is reduced on the 3rd plane 27 along second inclined-plane 26, and printhead 30 is away from paper and colour band at this moment, and the band of can checking colors from the space between printhead 30 and the paper is dismantled or changed.

Claims

1. the vertical printing mechanism of heat transfer printer is characterized in that: comprise frame (1), the last cross slide way (2) of installing of frame (1); Cross slide way (2) is gone up laterally steering piece (3) is installed, and laterally steering piece (3) is connected with nut (4), and nut (4) is installed on the leading screw (5); Leading screw (5) is connected with drive motors (6) through driving member, and nut (4) is gone up installing drive frame (7), and bogie (7) end face is disposed with first plane (8), first inclined-plane (9) and second plane (10) along the axis direction of leading screw (5); The height on first plane (8) is higher than second plane (10); Frame (1) goes up installs longitudinal rail (11), and longitudinal rail (11) is gone up longitudinally guiding piece (12) is installed, and longitudinally guiding piece (12) is connected with crane; Roller mount (28) is installed in the crane bottom surface; Roller mount (28) goes up installs roller (14), and roller (14) contacts with the end face of bogie (7), and the crane end face is installed printhead (30).

2. the vertical printing mechanism of heat transfer printer according to claim 1; It is characterized in that: said driving member has first synchronizing wheel (15) that is connected with drive motors (6) output shaft; And second synchronizing wheel (16) that is connected with leading screw (5), be connected through band (17) synchronously between first synchronizing wheel (15) and second synchronizing wheel (16).

3. the vertical printing mechanism of heat transfer printer according to claim 1; It is characterized in that: said crane has transverse slat (18); Roller mount (28) is installed in transverse slat (18) bottom surface; Roller mount (28) goes up installs roller (14), and transverse slat (18) rear side is installed back side panel (21), and back side panel (21) is connected with longitudinally guiding piece (12); First side plate (19) and second side plate (20) are installed in transverse slat (18) two ends; First side plate (19) and second side plate (20) correspondence position are respectively offered two groups of bar holes (22), and first carriage release lever (23) and second carriage release lever (24), mounting spring (25) between first carriage release lever (23) and second carriage release lever (24) and the transverse slat (18) are installed between two groups of bar holes (22); First carriage release lever (23) all is connected with buffer board (29) with second carriage release lever (24), and buffer board (29) is gone up printhead (30) is installed.

4. the vertical printing mechanism of heat transfer printer according to claim 1; It is characterized in that: bogie (7) end face is disposed with first plane (8), first inclined-plane (9), second plane (10) along the axis direction of leading screw (5); Second inclined-plane (26) and the 3rd plane (27); The height on first plane (8) is higher than second plane (10), and the height of second plane (10) is higher than the 3rd plane (27).