CN205838103U

CN205838103U - Double dancers put reel machine

Info

Publication number: CN205838103U
Application number: CN201620594269.1U
Authority: CN
Inventors: 王金根; 谢韬
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-06-18
Filing date: 2016-06-18
Publication date: 2016-12-28
Anticipated expiration: 2026-06-18

Abstract

The utility model discloses a kind of double dancer and put reel machine, belong to printing machinery technical field, this puts reel machine, include unwinding unit, this unwinding unit have be contained in the let off roll that unreels in frame and be located at let off roll side by unreel driving means connect drive unreel belt, unreel driving means and have a motor controlled by variable-frequency governor, it is characterized in that: in the paper wood output channel of unwinding unit, be disposed with at least two tension upsets absorption plant, tension upsets absorption plant is had the dancer on the swing arm of extension spring to constitute by being contained in a connection, it is positioned at last tension upsets absorption plant and is provided with the sensor of detection swing arm turned position, the outfan of sensor electrically connects with the input of variable-frequency governor.The problem that this utility model can solve soft, easily stretchable and external diameter differs, the non-round web printing of paper roll makes tension force play pendulum.

Description

Double dancers put reel machine

Technical field

This utility model relates to printing machinery technical field, especially a kind of for web press soft, easily stretchable Put reel machine.

Background technology

In press, for soft, the printing of easily stretchable roll web, must keep before paper tape enters printing equipment There is certain paper feed tension force, and the tension force of paper tape needs invariable and size is suitable in printing process.Work as web tension Time excessive, printing net-point can produce certain deformation, and paper tape longitudinally can crumpled, and transverse breakage even occurs, works as web tension Time too small, can cause that trace is fuzzy, register trouble and transversal fold.Existing unreel technology generally use have dancer from Dynamic controlling tension system, utilize angular transducer sensing dancer upper-lower position change, by automatically controlling, to change paper feed long Degree, reaches paper feed tensions constant, stable purpose, such as the paper wood of a kind of multicolour press of Patent No. 2013100291712 Conveyer device patent, but this device also exists problems with: when the roll web that printing profile variation is bigger, due to softly Base material tensile property is uneven, and paper roll is non-round, causes tension force Rapid Variable Design, makes dancer rapid perturbations, thus causes angle The signal intensity that sensor is sensed is frequent, also results in the most positive counter regulation automatically controlling tension system to tension force, on the contrary Tension force is made to play pendulum.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of double dancer and puts reel machine, and this reel machine of putting can To solve soft, easily stretchable and that external diameter differs, the non-round web printing of paper roll makes tension force play pendulum problem.

In order to solve the problems referred to above, this utility model be the technical scheme is that this pair of dancer puts reel machine, bag Having included unwinding unit, this unwinding unit has and is contained in the let off roll that unreels in frame and is located at described let off roll side by unreeling driving Device connect drive unreel belt, described in unreel driving means and have a motor controlled by variable-frequency governor, put described At least two tension upsets absorption plant, described tension upsets absorption plant it is disposed with in the paper wood output channel of roll unit There is the dancer on the swing arm of extension spring to constitute by being contained in a connection, be positioned at last tension upsets absorption plant and be provided with inspection Surveying the sensor of described swing arm turned position, the outfan of described sensor is electrically connected with the input of described variable-frequency governor Connect.

In technique scheme, more specifically technical scheme is it may also is that the one of described swing arm is located at by described dancer End, the other end and first gear of described swing arm are affixed, described first gear and the second gear phase installing described sensor Engagement.

It is further: the paper wood conveying downstream passage after described unwinding unit is provided with two compression rolls of mutually crimping, It is provided with Deviation rectifier on paper wood transfer passage between described unwinding unit and said two compression roll；In described two compression rolls One be connected by the output shaft of variator with printing mair motor, therein another by spring and adjustable diameter and screw adjusting bar phase Connect.

Owing to have employed technique scheme, this utility model compared with prior art has the advantages that

1, owing to being disposed with at least two tension upsets absorption dress in the paper wood output channel of described unwinding unit Putting, paper tape, through the dancer of every grade, is all predominantly absorbed part because paper roll is non-round, the unequal factor of material tensile property is drawn The tension force rapid perturbations risen, can make the paper tape from the output of tension upsets absorption plant be maintained at good steady statue, it is ensured that Unreel region web tension constant, lay a good foundation for printing zone constant tension, thus ensure that printing quality.

2, the sensor of detection swing arm turned position it is provided with owing to being positioned at last tension upsets absorption plant, and This sensor is connected with the motor controlling to unreel speed by variable-frequency governor, it is thereby achieved that tension automatic control, improves The degree of accuracy that tension force controls.

3, it is provided with, owing to the paper wood after unwinding unit carries, two pressures mutually crimped on the paper wood transfer passage in downstream Real roller；Can change and strengthen the adhesion that paper wood fiber is wound around, improve bonding force and the tightness of paper tape between ply of paper, minimizing is stretched Contracting, improves planarization and the slickness on paper tape surface；Thus improve printing performance.

Accompanying drawing explanation

Fig. 1 is the structural representation of this utility model embodiment.

Fig. 2 is the A direction view of Fig. 1.

Fig. 3 is the B direction view of Fig. 1.

Detailed description of the invention

The utility model is described in further detail for embodiment below in conjunction with the accompanying drawings:

Double dancers shown in Fig. 1, Fig. 2, Fig. 3 put reel machine, include unwinding unit, and this unwinding unit is contained in and unreels Let off roll in frame 12 and be located at let off roll 2 side be sleeved on drive pulley 6 He by unreel that driving means drives Unreeling belt 3 between negative pulley wheel 5, unreeling driving means has a motor controlled by variable-frequency governor 7, motor 7 Output shaft is fixing with drive pulley 6 to be connected, and the paper wood output channel after unwinding unit is provided with cleaner unit 4, in dedusting Being sequentially provided with two tension upsets absorption plants in paper wood output channel after device 4, the first tension upsets absorption plant is by even The first swing arm 10 and the first dancer 9 being connected with first swing arm 10 one end that are connected to the first extension spring 8 are constituted, and first draws The pulling force of spring 8 sets according to required tension force.Second tension upsets absorption plant is had the second swing arm of the second extension spring 12 by connection 13 and the second dancer 11 of being connected with second swing arm 13 one end constitute, the other end of the second swing arm 13 is provided with one Force checking device, this tension detecting apparatus includes first gear 131 affixed with the second swing arm 13, and the second swing arm 13 can be around The axis swing of the first gear 131, the first gear 131 is meshed with the second gear 132 installing sensor 133, sensor 133 For detecting the first swing arm 3 turned position, sensor 133 is angular transducer, the outfan of sensor 133 and frequency control The input electrical connection of device；Paper wood after unwinding unit carries and is provided with two compression rolls mutually crimped on downstream passage, and two Individual compression roll is included the active compression roll 15 being connected by the output shaft of variator 17 with printing mair motor 18 and passes through spring The driven compression roll 16 crimped mutually with adjustable diameter and screw adjusting bar, the paper wood transfer passage between unwinding unit and two compression rolls sets There is Deviation rectifier 14.

During work, paper roll to be printed is sleeved on let off roll 2, is unreeling the friction unreeling belt 3 that driving means drives Under power effect, paper roll is gradually spread out and unreel.The paper tape gradually released tape chart facial tissue dirt after cleaner unit 4 is eliminated, paper tape When entering the first dancer 9, because of the tension force rapid perturbations that paper roll is non-round, the unequal factor of material tensile property causes, major part It is predominantly absorbed；Then paper tape pile warp the second dancer 11, the pulling force of same second extension spring 12 sets according to tension force needed for it；Its In, when setting the gravity that the second dancer produces downwards and being 2 times of tension force, the second dancer is in equilbrium position, works as tension force During increase, the second extension spring 12 pulling force can not balance tension, the second dancer position moves down, and drives the second swing arm 13 around its shaft core Rotating, be arranged on the first gear 131 synchronous hunting of its shaft core, the second gear 132 band dynamic sensor 133 engaged inputs Axle rotates, and now sensor 133 sends regulation signal to variable-frequency governor, and this signal, after variable-frequency governor processes, is delivered to Motor 7, accelerates unreeling of motor 7 and turns degree, until tension force recovers to setting value.Vice versa.So, due to the first dancer 9 Absorb most of because expecting that volume irregular deformation causes tension force rapid perturbations, the second dancer 11 to fluctuate the most up and down, The signal that the sensor 133 being connected with the second swing arm 13 is sensed would not change frequently, automatically controls tension system also Would not be to the most positive counter regulation of tension force, so that it is guaranteed that paper tape is unreeling region tension stability with accurate.Paper tape is by correction Device 14, then be input to printing through two compression rolls, embossing and folding cutting action complete the processing of color printing medicated napkin.

Claims

1. double dancers put a reel machine, include unwinding unit, and this unwinding unit has and is contained in the let off roll unreeling in frame Be located at described let off roll side by unreel driving means connect drive unreel belt, described in unreel driving means have one by The motor that variable-frequency governor controls, it is characterised in that: it is disposed with at least in the paper wood output channel of described unwinding unit Two tension upsets absorption plants, described tension upsets absorption plant is had the floating on the swing arm of extension spring by being contained in a connection Roller is constituted, and is positioned at last tension upsets absorption plant and is provided with the sensor detecting described swing arm turned position, described biography The outfan of sensor electrically connects with the input of described variable-frequency governor.

The most according to claim 1 pair of dancer puts reel machine, it is characterised in that: described swing arm is located at by described dancer One end, the other end and first gear of described swing arm are affixed, described first gear with install described sensor the second tooth Wheel is meshed.

The most according to claim 1 and 2 pair of dancer puts reel machine, it is characterised in that: the paper wood after described unwinding unit Conveying downstream passage is provided with two compression rolls of mutually crimping, the paper between described unwinding unit and said two compression roll Material transfer passage is provided with Deviation rectifier；In described two compression rolls one is by the output shaft phase of variator with printing mair motor Connecting, therein another is connected with adjustable diameter and screw adjusting bar by spring.