CN201989412U

CN201989412U - Cripper opening and closing and abrasive resistance test device of printing machine

Info

Publication number: CN201989412U
Application number: CN2010206463305U
Authority: CN
Inventors: 武淑琴; 王仪明; 管天一
Original assignee: Beijing Institute of Graphic Communication
Current assignee: Beijing Institute of Graphic Communication
Priority date: 2010-12-02
Filing date: 2010-12-02
Publication date: 2011-09-28
Anticipated expiration: 2020-12-02

Abstract

The utility model relates to a cripper opening and closing and abrasive resistance test device of a printing machine, which belongs to a printing equipment test device. A rotary drum (2) is fixed in the axial and circumferential position of a rack, an engaging shaft (5) provided with a cripper (4) is arranged on a shoulder iron (6), the shoulder iron (6) is arranged on a tangential section (7) of the rotary drum (2), one end of the engaging shaft (5) is fixedly provided with a swing rod (8) with a cripper opening roller (10), the cripper opening roller (10) is adaptive to a cripper opening cam (12), and the opening and the closing of the cripper (4) are realized in operation; a motor (11) drives the cripper opening cam (12) to rotate through a middle transmission mechanism; the actual working state of a paper delivery mechanism can be truly simulated and reproduced, and the quality, the mechanical properties and the dynamic properties of the cripper and the opening and closing mechanism thereof are tested and analyzed through corresponding transducers and test instruments; and the device has a simple structure, is integrally balanced and stable, can adapt to various typical crippers and opening and closing mechanisms thereof, and can also be used for teaching.

Description

Printing machine is stung the paper tooth and is opened and closed and the wearability experimental provision

Technical field

The utility model belongs to printing equipment experimental provision technical field, relates to printing machine and stings switching of paper tooth and wearability experimental provision.

Background technology

Printing machine is stung paper tooth switching mechanism (hereinafter to be referred as the tooth switching mechanism)---and be feeding mechanism, generally be used on impression cylinder, sheet transfer drum and the transfer roller of printing machine, it is as the vitals of printing machine, its structure, the accuracy of manufacture, dynamic characteristics are directly connected to the handing-over speed of paper and paper and enter form between the printing unit, and then influence the chromatography precision of the speed and the printing of printing machine.At present, overwhelming majority offset press tooth switching mechanism all adopts the high point of cam closing mechanism, and its advantage is that paper-hinging force is directly produced by the high face of cam, paper-hinging force is stable, it is firm to sting paper, and the tooth sheet is adjustable, can be fit to the paper of different-thickness, little for thin paper biting force, be not easy to tear paper, big for thicker paper biting force, thus can guarantee that chromatography is accurate; Therefore the small changing of the relative positions does not take place in order to guarantee paper in modern offset press in stinging the paper process, to improve printing quality, generally all adopts the high point of this cam closing mechanism.Its weak point is, (1) lift of opening and closing cam and backhaul curve are all shorter, opening the tooth roller during lift, open time of the tooth roller experience of (opening the middleman journey) from the high face of cam to bottom surface when (closing stroke) or backhaul from the cam bottom surface to high face very short, " soaring " phenomenon appears, thereby cam is produced impact, make the tooth switching mechanism produce very big vibrating noise, and along with the raising of print speed printing speed, this vibrating noise is increasing in when work; (2), the cam installation site is in a side of the axle of gritting one's teeth, and be positioned on the axle head of gritting one's teeth of this side the tooth roller is housed out, the cam effect is opened the tooth roller and is realized stinging the switching of paper tooth, axle is long owing to grit one's teeth, this side reversed torsion must make the axle of gritting one's teeth produce strain, thereby cause the switching of stinging the paper tooth of a same last word order of gritting one's teeth to move inconsistent because of the life period difference, cause paper laterally producing, produce overprint error, and along with the raising of print speed printing speed, overprint error can be increasing.Therefore, though the high point of this cam closing mechanism be widely adopted, only in, the effect performance is better on the printing machine of low speed, on high-speed press, its quality, performance can't well meet the demands, and must carry out the improvement and the adjusting of science, otherwise can directly influence printing quality.Therefore, research and development adapt to high speed printing sting the paper tooth and the tooth switching mechanism is the important directions that modern printing machine further develops, but the design of optimizing must be based on basic data, the test data of corresponding quality, mechanism performance and dynamic characteristic, based on analysis of science, is unpractical and will obtain corresponding data on real production line, must wherein, must possess corresponding experimental provision by necessary means.

Summary of the invention

The technical problem that solves:

Providing printing machine to sting the paper tooth opens and closes and the wearability experimental provision, can and reproduce under the feeding mechanism actual working state in simulation, easily quality, mechanical performance and the dynamic characteristic of stinging paper tooth, tooth switching mechanism are carried out test analysis, make effective prediction, for research and development adapt to high speed printing sting the paper tooth, the tooth switching mechanism provides scientific basis, so that optimizing design scheme can also be used for teaching.

The technical scheme that adopts:

Printing machine is stung the paper tooth and is opened and closed and the wearability experimental provision, have the cam height and put being contained on the cylinder of the detachable property of closing mechanism, cylinder is contained on the frame, also have independently power drive system and test macro, it is characterized in that: the cylinder key is fixed to be contained on the drum shaft, the two ends of drum shaft by cylinder locating shaft gear shaft to the fixed wallboard that is packed in frame of circumferential position on; Sting paper tooth word order formula and be contained on the axle of gritting one's teeth, axle and the bearings at both ends formula parallel with drum shaft of gritting one's teeth is contained on the shoulder iron, takes on iron and is packed on the string section of cylinder, must guarantee that the tooth sheet of stinging the paper tooth can realize reliable open and close with the periphery of cylinder; Grit one's teeth the axle an end on fork is housed, by little rotating shaft the tooth roller is housed out on the free end of fork; Open on the frame of tooth roller place one side motor is housed, motor drives by intermediate transmission mechanism and opens the rotation of tooth cam, open the tooth cam and act on out the tooth roller, and then drive the axle action of gritting one's teeth by fork, the open and close of paper tooth is stung in realization, other has back-moving spring, and its two ends link together with fork and wallboard respectively.

Beneficial effect:

Can be in less space, real simulated and reproduction feeding mechanism actual working state, required precision is satisfied in the grit one's teeth axle and the support of bite-block, the tooth sheet is adjustable, interchangeable, by corresponding sensor and tester, can carry out test analysis to quality, mechanical performance and the dynamic characteristic of stinging paper tooth and switching mechanism thereof, make effective prediction, for research and development, optimizing design scheme provide scientific basis; Simple in structure, whole machine balancing is stable, and is easy to use, can adapt to multiple paper tooth and the switching mechanism thereof typically stung, and can also be used for teaching, makes student's operating characteristic of perception tooth switching mechanism intuitively, capability and performance evaluation and prediction.

Description of drawings

Fig. 1, Overall Group's assembling structure schematic diagram;

Fig. 2, press the A shown in Fig. 1 to view;

Fig. 3, press the A-A cutaway view Amplified image shown in Fig. 1;

Fig. 4, press the B-B cutaway view shown in Fig. 2;

Fig. 5, power transmission system structure figure;

Fig. 6, test macro schematic diagram;

The specific embodiment

Further explanation in detail in conjunction with the accompanying drawings;

Shown in Fig. 1～6, cylinder 2 keys are fixed to be contained on the drum shaft 3, the two ends of drum shaft 3 by cylinder locating shaft gear shaft to the fixed wallboard 1 that is packed in frame of circumferential position on, stinging paper tooth 4 word order formulas is contained on the axle 5 of gritting one's teeth, the axle 5 of gritting one's teeth and bearings at both ends formula parallel with drum shaft 3 is contained in to be takeed on the iron 6, shoulder iron 6 is packed on the string section 7 of cylinder 2, must guarantee that the tooth sheet 30 of stinging paper tooth 4 can realize reliable open and close with the periphery of cylinder 2; Grit one's teeth and fork 8 is housed on axle 5 the end, by little rotating shaft 9 tooth roller 10 is housed out on the free end of fork 8; Open on the frame of tooth roller 10 places one side motor 11 is housed, motor 11 drives by intermediate transmission mechanism and opens 12 rotations of tooth cam, open tooth cam 12 and act on out tooth roller 10, and then drive axle 5 actions of gritting one's teeth by fork 8, the open and close of paper tooth 4 is stung in realization, other has back-moving spring 13, and its two ends link together with fork 8 and wallboard 1 respectively.

Shown in Fig. 1,2,4, the two ends of drum shaft 3 by cylinder locating shaft gear shaft to being with the fixed structure that is packed in the wallboard 1 of frame of circumferential position, the string platform 14 that has supporting correspondence on the two ends of drum shaft 3 respectively, the detent rail 15 of supporting correspondence is packed on the string platform 14 by staple 16, is packed on the lateral surface of wallboard 1 by lock plunger 17 simultaneously; Thereby can make drum shaft 3 together with the axial and circumferential fixed-site that installs cylinder 2 thereon, make cylinder 2 and wallboard 1 can not produce relative motion, conveniently assemble and disassemble not only, and can guarantee the stability of single unit system.

As Fig. 1,3, shown in 5, the structure of intermediate transmission mechanism is, driving pulley 18 is housed in the rotating shaft of motor 11, and pass through belt 19 and give big belt wheel 20 transmission of power, big belt wheel 20 and first gear, 21 coaxial being fixed with one, and bearing-type is contained on first cantilevered axle 22 respectively, first gear 21 and second gear 23 are meshing with each other, second gear 23 and the 3rd gear 25 are meshing with each other, the 3rd gear 25 with open tooth cam 12 coaxial being fixed with one, and bearing-type is contained in out on the end of drum shaft 3 of tooth roller 10 places one side respectively, and second gear, 23 bearing-types are contained on second cantilevered axle 24, first, second cantilevered axle 22, cantilevered is contained on the wallboard 1 in 24.

Shown in Fig. 1,6, can be according to needing, change corresponding measured piece, or, as shown in Figure 6, will speed up sensor 26 and be fixed on the tooth sheet 30 of stinging paper tooth 4 by sensor connection test macro, link to each other with test macro 28 by data wire 27, after the running, can gather signal, analyze, obtain the dynamic characteristic parameter of stinging paper tooth 4; If the wearability that will test bite-block then is installed in bite-block to be measured on the axle 5 of gritting one's teeth, the running certain hour takes off tested bite-block, is placed on the atomic force microscope its surperficial pattern analyzed promptly to know the result; In the whole test process, cylinder 2 need not to rotate, thereby can guarantee the stability of single unit system and the precision of test data.

As shown in Figure 1, be the balance that guarantees single unit system and stable, balancing weight 29 be housed installing on the frame of a relative side with motor 11.

Claims

1. printing machine is stung switching of paper tooth and wearability experimental provision, have the cam height and put being contained on the cylinder of the detachable property of closing mechanism, cylinder is contained on the frame, also have independently power drive system and test macro, it is characterized in that: the cylinder key is fixed to be contained on the drum shaft, the two ends of drum shaft by cylinder locating shaft gear shaft to the fixed wallboard that is packed in frame of circumferential position on; Sting paper tooth word order formula and be contained on the axle of gritting one's teeth, axle and the bearings at both ends formula parallel with drum shaft of gritting one's teeth is contained on the shoulder iron, takes on iron and is packed on the string section of cylinder, must guarantee that the tooth sheet of stinging the paper tooth can realize reliable open and close with the periphery of cylinder; Grit one's teeth the axle an end on fork is housed, by little rotating shaft the tooth roller is housed out on the free end of fork; Open on the frame of tooth roller place one side motor is housed, motor drives by intermediate transmission mechanism and opens the rotation of tooth cam, open the tooth cam and act on out the tooth roller, and then drive the axle action of gritting one's teeth by fork, the open and close of paper tooth is stung in realization, other has back-moving spring, and its two ends link together with fork and wallboard respectively.

2. printing machine according to claim 1 is stung the paper tooth and is opened and closed and the wearability experimental provision, it is characterized in that: the two ends of drum shaft (3) by cylinder locating shaft gear shaft to being with the fixed structure that is packed in the wallboard (1) of frame of circumferential position, the string platform (14) that has supporting correspondence on the two ends of drum shaft (3) respectively, the detent rail of supporting correspondence (15) is packed on the string platform (14) by staple (16), is packed on the lateral surface of wallboard (1) by lock plunger (17) simultaneously.

3. printing machine according to claim 1 and 2 is stung the paper tooth and is opened and closed and the wearability experimental provision, it is characterized in that: the structure of intermediate transmission mechanism is, driving pulley (18) is housed in the rotating shaft of motor (11), and pass through belt (19) and give big belt wheel (20) transmission of power, big belt wheel (20) and coaxial being fixed with one of first gear (21), and bearing-type is contained on first cantilevered axle (22) respectively, first gear (21) is meshing with each other with second gear (23), second gear (23) is meshing with each other with the 3rd gear (25), the 3rd gear (25) with open coaxial being fixed with one of tooth cam (12), and bearing-type is contained in out on the end of drum shaft (3) of tooth roller (10) place one side respectively, second gear (23) bearing-type is contained on second cantilevered axle (24), and first, second cantilevered axle (22), (24) interior cantilevered is contained on the wallboard (1).