CN202242266U

CN202242266U - Unit type flexible printing machine transmission device

Info

Publication number: CN202242266U
Application number: CN2011203572894U
Authority: CN
Inventors: 杨峥雄
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-09-13
Filing date: 2011-09-13
Publication date: 2012-05-30
Anticipated expiration: 2021-09-13

Abstract

A transmission device of a unit type flexo printing machine is applied to a printing machine transmission device with a printing roller and a stamping roller in light pressure contact, and belongs to the fields of light industry machinery and automatic control. Contain deflector roll, final drive shaft, impression roller, motor, gearbox, version roller, transmission hold-in range or gear, reticulation roller, characterized by: the embossing roller is coaxially driven through the transmission main shaft, and the printing roller is independently driven by the motor, so that the synchronous consistency of the surface linear speeds of the printing roller and the embossing roller is realized. The driving power of the anilox roller 4 can be provided by a plate roller motor through a gear or a synchronous belt, or provided by a transmission main shaft.

Description

A kind of set type flexible printing press transmission device

Technical field

The utility model relates to a kind of set type flexible printing press transmission device, is applied to the printing machine transmission device that version such as flexible printing press roller contacts with the light pressure of roller platen, belongs to light industry and machinery and automation field.

Background technology

Traditional set type flexible printing machine, particularly roll web flexible printing machine, its transmission speed reducer structure has a transferring power mechanical axis at the transmission side of flexible printing press.The shared mechanical major axis of printing element drives, and through gear reduction and transmission, drives roller platen, version roller, anilox roll by intrinsic gear ratio rotation.The print repeat length of gear drive flexible printing press increases with the number of teeth of plate cylinder gear, every increase or reduce by 1 tooth, and print repeat length can only be the multiple that is subject to certain size.Because traditional flexible printing press is to print through plate cylinder and a pair of gear drive that impression rolls; When thin excessively (the 12 μ m) of thickness of stock or blocked up (0.6mm); Make being meshing with each other not on the pitch circle of gear of two gears; Be prone to during gear drive rock or wear and tear, be difficult to guarantee the high-quality printing effect of high accuracy.

Electronical line shaft set type flexible printing press transmission device, each colour cell drive roller platen, version roller, anilox roll by intrinsic gear ratio rotation with a servomotor drive, can't overcome above-mentioned weakness, and bring cost to increase, and cost raises.

Each colour cell is with 4 servomotor drive; Driving roller platen, version roller, anilox roll and horizontal register respectively, is comparatively perfect solution, but cost, cost raise greatly; The control complexity increases; The debugging of electrical system and set-up time increase, and a limit is used in high-grade machine, can't popularize.

Summary of the invention

The utility model designs for solving above-mentioned deficiency, and transmission device is increased under few condition at cost, has the advantage of servo-drive again, has novelty and practicality.The utility model scheme is through set type flexible printing press repacking test, and is respond well.

This set type flexible printing press transmission device; Comprise deflector roll 1, final drive shaft 6, roller platen 2, motor 7, gearbox 8, version roller 3, transmission is band or gear, anilox roll synchronously; Wiping mechanism 5 etc.; Roller platen 2 is through transmission main shaft 6 coaxial drivings, and version roller 3 usefulness motors 7 single driving realize that version roller 3 is consistent synchronously with roller platen 2 linear resonance surface velocities; The driving power of anilox roll 4 can be through gear or is with synchronously, is provided by the version roller motor, or is provided by transmission main shaft.

Version roller 3 drive motors 7; Available servomotor, synchronous motor, variable-frequency motor are any, can realize during machine works that version roller 3 is consistent with roller platen 2 linear resonance surface velocities, and motor transmits signal through controller when overprint error occurring simultaneously; The correction that can superpose is revised error fast.Because be 0 pressure or light pressure between flexible printing press roller platen and version roller, the version roller influences very little to the front and back colour cell when superposeing a correction.The photocell eye that can utilize each colour cell to install detects mark's line on the printing, and according to the error that detects, via controller computing conversion becomes the controlled quentity controlled variable signal of drive motors, directly is added to controlled quentity controlled variable on the motor, forms a closed-loop control system.Concrete operations principle and control method can be with reference to prior aries such as automatic overprint system and driven by servomotor.

Motor 7 drives version roller 3 after slowing down through reduction box 8 again; Version roller 3 also useable electric moter 7 directly drives, and reduction box 8 can be cancelled like this.

Version roller 3 can be connected through the slidably axle of 2 universal joints of front and back belt with motor 7 or gearbox 8, and the position moves forward and backward the influence to printing when having avoided version footpath size variation like this.

The utility model version roller 3 is used the motor drive; The print repeat length that has overcome the gear drive flexible printing press increases with the number of teeth of plate cylinder gear, every increase or reduce by 1 tooth, and print repeat length can only be the multiple that is subject to certain size; And when thin excessively (the 12 μ m) of the thickness of stock or blocked up (0.6mm); Make being meshing with each other not on the pitch circle of gear of two gears to be prone to rock or wear and tear during gear drive, be difficult to guarantee the high-quality printing effect of high accuracy.

Existing flexible printing press transmission main shaft 6 adopts the less solid shafting of external diameter mostly, and it is less because of the solid shafting rotary inertia producing acceleration in velocity variations, is prone to produce torsional deflection, the chromatography precision of influence printing.The utility model utilizes the relevant principle of the mechanics of materials, is designed to bigger, the hollow structure of external diameter to transmission main shaft 6.Under the condition of same weight, increased rotary inertia greatly like this, reduced torsional deflection, the chromatography precision influence of printing still less.

Transmission main shaft 6 can be realized through 2 45 ° circle-arc tooth bevel gear gearboxes with the roller platen transmission.Main shaft is used variable-frequency motor in the centre, through synchronous pulley deceleration rear drive transmission main shaft 6, matches gear ratio, and bevel gear can be realized 1: 1 speed ratio, and is smaller and more exquisite like this, makes the flexible printing press structure be easier to arrange.

Printing material adopts bigger mode at the cornerite of roller platen, and cornerite is not less than 220 °, makes in the transmission material tension stable.

It is the printing machine of 0 pressure or light pressure that the utility model is suitable between other roller platens and version roller equally.The roller platen that is printing machine is 0 or very little with the version roll gap pressure.

Description of drawings

Fig. 1,2 is a set type flexible printing press transmission device sketch map.

Among the figure, 1 is deflector roll, and 2 is roller platen, and 3 is the version roller, and 4 is anilox roll, and 5 is wiping mechanism, and 6 is transmission main shaft, and 7 is motor, and 8 is reduction box.

The specific embodiment

This set type flexible printing press transmission device; Comprise final drive shaft 6, roller platen 2, motor 7, gearbox 8, version roller 3, transmission is band or gear, anilox roll 4 synchronously; Wiping mechanism 5 etc.; Roller platen 2 is through transmission main shaft 6 coaxial drivings, and version roller 3 usefulness motors 7 single driving realize that version roller 3 is consistent synchronously with roller platen 2 linear resonance surface velocities; The driving power of anilox roll 4 can be through gear or is with synchronously, is provided by the version roller motor, or is provided by transmission main shaft.

Version roller 3 drive motors 7; Available servomotor, synchronous motor, variable-frequency motor are any, can realize during machine works that the version roller is consistent with the roller platen linear resonance surface velocity, and motor transmits signal through controller when overprint error occurring simultaneously; The correction that can superpose is revised error fast.Because be 0 pressure or light pressure between flexible printing press roller platen and version roller, the version roller influences very little to the front and back colour cell when superposeing a correction.Can utilize the photocell eye of each colour cell case dress to detect mark's line on the printing, according to the error that detects, the via controller computing becomes the controlled quentity controlled variable signal of drive motors, directly is added to controlled quentity controlled variable on the motor.Concrete operations principle and control method can be with reference to prior aries such as automatic overprint system and driven by servomotor.

Version roller 3 also useable electric moter 7 directly drives, and reduction box 8 can be cancelled like this.

Existing flexible printing press transmission main shaft 6 adopts the less solid shafting of external diameter mostly, and it is less because of the solid shafting rotary inertia producing acceleration in velocity variations, is prone to produce torsional deflection, the chromatography precision of influence printing.The utility model utilizes the relevant principle of the mechanics of materials, is designed to bigger, the hollow structure of external diameter to power transmission shaft.Under the condition of same weight, increased rotary inertia greatly like this, reduced torsional deflection, the chromatography precision influence of printing still less.

The utility model scheme is through set type flexible printing press repacking test, and is respond well.

Knowledge such as other structures of flexible printing press and machine driving details, motor synchronous driving, chromatography can be with reference to existing correlation technique, no longer repeat specification.

Claims

1. set type flexible printing press transmission device; Comprise deflector roll, final drive shaft, roller platen, motor, gearbox, version roller, transmission is band or gear, anilox roll synchronously; It is characterized in that: roller platen is through the coaxial type of drive of transmission main shaft, and the version roller is with motor single driving mode.

2. according to the said a kind of set type flexible printing press transmission device of claim 1, it is characterized in that: the driving power of anilox roll is provided by the version roller motor through gear or synchronous band; Or provide by transmission main shaft.

3. according to the said a kind of set type flexible printing press transmission device of claim 1, it is characterized in that: transmission main shaft is designed to bigger, the hollow structure of external diameter.

4. according to the said a kind of set type flexible printing press transmission device of claim 1, it is characterized in that: motor drives the version roller after slowing down through reduction box again; Or the version roller is used motor direct-drive.

5. according to the said a kind of set type flexible printing press transmission device of claim 4, it is characterized in that: transmission main shaft and roller platen transmission are adopted by 2 45 ° circle-arc tooth bevel gear gearbox forms.

6. according to the said a kind of set type flexible printing press transmission device of claim 4, it is characterized in that: version roller and motor or gearbox slidably spool are connected through 2 universal joints of front and back belt.

7. according to the said a kind of set type flexible printing press transmission device of claim 1, it is characterized in that: the roller platen of printing machine is 0 or very little with the version roll gap pressure.

8. according to the said a kind of set type flexible printing press transmission device of claim 1, it is characterized in that: the printing material cornerite of roller platen adopts bigger mode.

9. said according to Claim 8 a kind of set type flexible printing press transmission device, it is characterized in that: the printing material cornerite of roller platen is not less than 220 °.