CN2355882Y

CN2355882Y - Paper gripper mechanism for printing machine

Info

Publication number: CN2355882Y
Application number: CN 98250241
Authority: CN
Inventors: 安根旺; 王伟; 吴靖; 卢成斌
Original assignee: Beiren Printing Machinery Co ltd
Current assignee: Beiren Printing Machinery Co ltd
Priority date: 1998-12-18
Filing date: 1998-12-18
Publication date: 1999-12-29
Anticipated expiration: 2008-12-18

Abstract

The utility model relates to a paper gripper mechanism for printing machines, which comprises a tooth pad, a tooth body, a tooth sheet and a tooth shaft. The utility model is characterized in that a tooth pad 6 provided with an elastic thrush device 3 is fixed on a cylinder body 9 by a screw shaft 8; gaps delta X and delta Y are arranged on the radial direction and the axial direction of the tooth pad 6; a tooth sheet 5 contacted with the tooth pad 6 is fixed on a tooth body 4 whose one side is provided with an open groove 4B; the tooth body 4 and a tooth shaft 1 are directly fixed together by a screw 10. The utility model has the advantages of even tooth holding force of each paper gripper, large tooth holding force, large contact surface of the tooth sheet 5 and the tooth pad 6, and high printing quality.

Description

A kind of printing machine is stung the paper dental structure

The utility model relates to a kind of printer device, and what be particularly useful for the transmission of printing machine when work paper stings the paper dental structure.

The transmission of paper is finished by stinging the paper tooth during printing machine work, in order to guarantee that good chromatography precision just must guarantee that stinging the paper tooth has the enough power of holding in the month, each power of holding in the month size of stinging the paper tooth wants consistent, and the last plane of stinging the paper tooth will remain in the horizontal plane, only in this way just can print off good printing, otherwise can produce ghost image, can produce waste product when serious.

Traditional stings the paper dental structure as shown in Figure 1: during closing, tooth axle 1 clockwise rotates, the tooth set 2 that drive is fixed on the tooth axle 1 clockwise rotates, tooth set 2 compression springs 3, the tooth body 4 of spring 3 compressing kinks on tooth axle 1 clockwise rotated, clockwise rotate, make tooth sheet 5 closings thereby drive the tooth sheet 5 that is fastened on the tooth body 4, paper 7 is pressed on the bite-block 6 tightly, and bite-block 6 is to be fastened on the barrel 9 with screw 8; When opening tooth, tooth axle 1 rotates counterclockwise, and drives the tooth set 2 that is fastened on the tooth axle 1 and rotates counterclockwise, and tooth set 2 promotes adjustment screw 10 drive tooth bodies 4 and rotates counterclockwise, and rotates counterclockwise the purpose that reaches out tooth thereby drive the tooth sheet 5 that is fastened on the tooth body 4.

Because processing and installation errors, tooth sheet 5 can not contact fully with bite-block 6, four kinds of situations as shown in Figure 2 can occur: Fig. 2 a and Fig. 2 b represent that tooth sheet 5 is the situation that line contacts with bite-block 6, Fig. 2 c and Fig. 2 d represent that then tooth sheet 5 and bite-block 6 are a situation about contacting, like this because contact-making surface is less, reduce the power of holding in the month of stinging the paper tooth widely, and then influenced the quality and the productivity of printed matter.

The purpose of this utility model provides a kind of tooth sheet that makes and contacts firmly with bite-block, sting the paper tooth to hold power in the month stronger, respectively sting the paper tooth and hold the printing machine of power size uniformity in the month and sting the paper dental structure, thereby guarantee print quality, improve production of machinery power.

The purpose of this utility model is achieved in that

A kind of printing machine is stung the paper dental structure, comprise bite-block, tooth body, tooth sheet, tooth axle, be characterized in that the bite-block that is provided with the elastic thrust device is packed on the barrel with screw axis, the radial and axial clearance delta X and the Δ Y of leaving of bite-block, the tooth sheet that contacts with bite-block is fixed on the tooth body of a side band open slot, and the tooth body then directly is fixed together with screw and tooth axle.

The purpose of this utility model can also further be finished by following technological means:

The aforesaid paper dental structure of stinging is equipped with the elastic thrust device on the bite-block with in the perpendicular aperture of its radial hole.

The aforesaid paper dental structure of stinging installs on the tooth body in the hole of tooth axle and along the circumferential direction is provided with groove.

The aforesaid paper dental structure of stinging, described groove are distributed in the symmetrical up and down both sides of open slot, groove be shaped as zigzag or semicircular arc.

Advantage of the present utility model:

Owing to adopt structure of the present utility model, make former cause tooth sheet look for the mode of bite-block to change into and look for the tooth sheet by bite-block, and since bite-block in the radial and axial gap of all leaving, make that bite-block can move up and down, one section slight distance Δ of left-right rotation under the effect of elastic thrust device, and then played floating action, make bite-block can contact more in fact with the tooth sheet, the contact area that also is tooth sheet and bite-block increases, make and hold paper power in the month and strengthen, and respectively sting the paper tooth to hold power in the month even, therefore improved the quality of printing.

Below in conjunction with Figure of description and embodiment the utility model is further described.

Fig. 1 stings paper dental structure schematic diagram for existing printing machine.

Fig. 2 contacts the situation schematic diagram for paper tooth and bite-block four kinds stung of existing printing machine.

Fig. 3 is a structural representation of the present utility model.

Fig. 4 is the utility model structure and fundamental diagram.

Fig. 3, Fig. 4 is one of the utility model embodiment, bite-block 6 usefulness screw axis 8 are fixed on the barrel 9 among the figure, but it is all unfixing dead, but in the radial and axial gap of all leaving, be respectively Δ X and Δ Y, and bite-block 6 with the perpendicular aperture 6B of the column part hole 6A that installs screw axis 8 in spring 3 is housed, spring 3 one ends contact with the column part of screw 8, the other end contacts with the indentation, there 9A of barrel 9, bite-block 6 can be moved up and down and one section slight distance Δ of left-right rotation under the effect of spring 3, simultaneously for the unreasonable form and the simplified structure of " the tooth sheet is looked for bite-block " that change original technology, cancelled tooth set 2, screw 10, spring 3 parts such as grade, see Fig. 1, and changed the structure of tooth body 4.In the hole of the installation tooth axle 1 of Fig. 4 dens in dente body 4 along the circumferential direction up and down both sides be provided with groove 4A symmetrically, when fastening, to strengthen the fastening force of tooth body to the tooth axle, side at tooth body 4 is provided with open slot 4B simultaneously, so that make screw 10 be more convenient for clamping or unclamping the tooth axle, the shape of groove 4A can be zigzag or semicircular arc.

Its operation principle:

During closing, tooth axle 1 clockwise rotates, tooth body 4 and tooth sheet 5 that drive is fastened on the tooth axle 1 turn clockwise, make tooth sheet 5 be pressed on the bite-block 6 and move down and compress spring 3, tooth is stung 6 upwards to float, therefore bite-block 6 can be automatically at clearance delta X, before and after doing in the Δ Y scope, left and right sides fine motion, and can rotate, automatically realize and tooth sheet centering function, the contact-making surface of tooth sheet and bite-block is increased, and the tooth sheet that has so just overcome prior art existence shown in Figure 2 contacts unreal defect with bite-block, improved the performance of stinging the paper tooth greatly, make it hold that paper power strengthens and to hold power in the month even in the month, guaranteed the quality of printing.

Claims

1. a printing machine is stung the paper dental structure, comprise tooth axle, tooth body, tooth sheet, bite-block, the tooth that it is characterized in that being provided with elastic thrust device (3) sting (6) be packed on the barrel (9) with screw axis (8), the radial and axial clearance delta X and the Δ Y of leaving of bite-block, the tooth sheet (5) that contacts with bite-block is fixed on the tooth body (4) of a side band open slot (4B), and tooth body (4) then directly uses screw (10) and tooth axle (1) to be fixed together.

2. the paper dental structure of stinging as claimed in claim 1 is characterized in that in bite-block (6) is gone up and its radial hole (6A) the is perpendicular aperture (6B) elastic thrust device (3) being housed.

3. the paper dental structure of stinging as claimed in claim 1 is characterized in that installing on the tooth body (4) in the hole of tooth axle (1) and along the circumferential direction is provided with groove (4A).

4. the paper dental structure of stinging as claimed in claim 3 is characterized in that described groove (4A) is distributed in the symmetrical up and down both sides of open slot (4B), groove be shaped as zigzag or semicircular arc.