CN2128194Y - Locater for pulley type automatic silk screen printing machine - Google Patents

Abstract

The utility model relates to a positioning mechanism for a pulley type automatic silk screen printing machine, in particular to a conveyor belt positioning device used for controlling a printing unit with transporting and printing functions. An intermittent mechanism is pivoted on a wheel shaft of a conveyor belt driven wheel, with matching with adjusting and fastening devices at the two sides of a driven wheel, the load bearing printed work piece (such as whole roll of piece goods or paper sheets) can advancing move from one printing plate to another printing plate. So each original block can be exactly overprinted on the same position without creating color register deviation and aberration. Therefore, the color printing pattern can be printed the same as the original block, and the use range of silk screen printing is provided with remarkable efficacy improvement.

Description

Locater for pulley type automatic silk screen printing machine

The utility model relates to a kind of positioner of tyre type automatic silk screen printing machine, this positioner is embedded the indexing mechanism that is made of a disk on the driving wheel wheel shaft of conveyer belt, and the adjusting device for fastening of cooperation follower both sides, in order to have the position of the conveyer belt of the transmission and the function of undertaking the printing of in the control printing unit, advance to another forme for carrying printed material matter from a forme, be printed on same position and can accurately make each primary colors repeat cover, the phenomenon of unlikely generation registration deviation entanglement, in the hope of print the loyal colored printing pattern of intimate original copy.

The multicolour pattern mode of printing of cloth all must be cut earlier or machine-shaping after, binding carrying out the continuous chromatography of silk screen, thereby obtains exquisite colored printing pattern on platen again.But it is flourishing that the prosperity when today along with science, industry and commerce also are tending towards, so business efficiency is also just paid attention to by people.Therefore all affairs are then stressed business efficiency such as, under the requirement of business efficiency, same condition of work is fast with speed, convenient, under the simple principle, making working method rise to business efficiency is optimum state, and cut or machine-shaping after cloth colored printing mode, difference because of the processing article, so shape also has nothing in common with each other, the platen specification of therefore printing carrying printed material matter in the unit must change with the shape that cuts, it need only not increase platen form kind, more installs because of mode of printing, taking out cloth all must be artificial, adds the inconvenience of cloth arrangement of printing back and conveying, then cause many disappearances, so do not conform to the requirement of economic benefit.Other has the precursor, utilize wheel band screen process press in order to the whole volume of direct carrying cloth, to carry out colored continuous chromaticity printing, but its conveying mechanism is all disengaging type brake motor cooperates the revolution of chain to drive roller, and conveyer belt is rotated being used for carrying cloth, and utilize the intermittence of disengaging type brake motor, and make the cloth that is printed do intermittently to pause feeding, each primary colors half tone for the printing unit can successively overlap the same position that is printed on cloth, thereby obtains an exquisite multicolour pattern cloth.Though so can print in a large number apace, but because of disengaging type brake motor has surplus commentaries on classics (during dump, inertia because of rotating shaft, though joining the tax brake still can't instantaneously stop, and can change a bit) and the disappearance of chain chain between cog fit clearance, when often causing staying in the printing unit, can't will produce the misclassification that prints black color in same position by double exposure; more cause the pattern chromatography bad, this is to solve the operation bottleneck that improves by the anxious desire of worker of being engaged in serigraphy.

The utility model is to provide a kind of detent mechanism of tyre type automatic silk screen printing machine, this mechanism utilizes the disk of the tool breach that is pivoted on the drive sprocket axle of conveyer belt, cooperate the rocking arm of tool holding effect and constitute an indexing mechanism, other cooperates the fastening conveyer belt apparatus of adjustment of driven pulley two side shaft holders, for each primary colors carp louse China ink silk version in the printing unit, can successively repeat to overlap on the same position that is printed on printed material matter, the phenomenon of while unlikely generation registration deviation entanglement, and the colored cloth pattern that can print loyal, attractive in appearancely.

In addition, the conveyer belt that the utility model utilization wheel changes is to carry a whole volume cloth or paper, and cooperate driving wheel at intermittence of circling for every time under the detent mechanism, and not only can stop the defective products that off normal causes, more can print in a large number apace really, to improve quality, reduce cost.

Fig. 1 is the stereoscopic figure of tyre type automatic silk screen printing machine of the present utility model.

Fig. 2 is the detent mechanism schematic diagram of tyre type automatic silk screen printing machine of the present utility model.

Fig. 3 is the embodiment of tyre type automatic silk screen printing machine of the present utility model.

At first sincerely please cooperate shown in the Fig. 1,2 that consults accompanying drawing, the positioner of tyre type automatic silk screen printing machine of the present utility model, constituted by an indexing mechanism 2 and adjusting device for fastening 4, wherein indexing mechanism 2 utilizes a fixed disk 21 to be located in the driving wheel 5A(dotted portion of rotational conveyance band 10), offer a concave arc groove 211 with gradient on this positioning disc 21, snap in therebetween for an action roller 221, thereby play positioning action intermittently.Action roller 221 is installed in the front end of a rocking arm 22, other has piston rod 231 front ends of bucket cylinder 23 to set movably to be coupled to end place among the rocking arm 22, this purpose is the telescopic action by piston rod 231, constantly breaks away from intermittent mode and snaps in the concave arc groove 211 of positioning disc 21 with the action roller 221 that impels rocking arm 22.Regulate the both sides axle head that 4 of device for fastening are installed in follower 5B, this adjusting device for fastening is located in the screw 61 of frame 6 by regulating silk 41 spiral shells, and the front end spiral shell is located in the bearing block 42 of driven pulley 5B axle head, this adjusting device for fastening can utilize the rotation advance and retreat of two symmetrical set screw 41, elasticity with control conveyer belt 10, and then prevent that conveyer belt 10 from producing skid between two-wheeled (driving wheel and driven pulley), avoid causing the location inaccurate.Cooperation by above-mentioned two mechanisms; The feeding and the intermittence that make conveyer belt 10 have certain rule stop, thereby it is rotary configured to form a tyre type of the present utility model.

Below with the utility model mode of operation, cooperate shown in Figure 3ly, details are as follows:

At first whole cloth 100(or the paper rolled up) rotate on the conveyer belt 10, then starting switch.At this moment, when the bucket cylinder 23 of indexing mechanism 2, with piston 231 refoulements, the related rocking arm 22 that makes together returns again, makes the roller 221 of rocking arm 22 front ends, breaks away from the concave arc groove 211 of positioning disc 21.This moment, driving wheel 5A broke away from volume arc groove 211 because of roller 221, and can be by the power of motor with conveyer belt 10 in advance with transmission, push ahead and snap in the concave arc groove 211 of positioning disc 21 by bucket cylinder 23 piston rod 231 until the roller 221 that shakes folds in a garment 22 front ends, produce the function of location.So indexing mechanism 2 feasible initiatively state wheel 5A whenever rotate a circle and make once intermittently positioning action, and the temporary transient time of staying of utilization location, do colored chromatography work when impelling each primary colors screen printing forme to descend in the printing unit.When printing chromatography work is finished, the bucket cylinder 23 of indexing mechanism 2 is answered back piston rod 231 refoulements to impel rocking arm 22, thereby make conveyer belt 10 once more by the rotation of driving wheel 5A and advance, revolve the back of turning around at driving wheel and reply intermittently location printing, through repetitive process like this, make whole volume cloth 100 all through screen printing forme 71,72,73,74,75,76 of all kinds successively repeat chromatography, thereby obtain colored gorgeous printed patterns.

Moreover, adjust fastener 4 by adjusting screw 41 to regulate the left and right sides elasticity of conveyer belt 10, in addition in a cloth 100 automatic feeds, under the material-receiving system close fit, can make a cloth 100 unlikely left and right deviation when conveyer belt 10 transmits.This adjusted under cooperating of fastener 4 and indexing mechanism 2, can obtain being close to the printed patterns of the loyalty colour of original copy.

Secondly, again at the situation of the utility model indexing mechanism 2 with the power transmission, described in detail: the power of motor is after slowing down, connect mutually with driving wheel 5A by chain, when rocking arm 22 breaks away from the concave arc groove 211 of positioning disc 21, to touch a motor power switch, and then make the motor rotation come rotational conveyance band 10 to drive driving wheel 5A, and during the about half-turn of driving wheel 5A rotation, the cam that utilizes wheel shaft to be embedded touches one and switches switch, and then turn off the power of motor, while also makes bucket cylinder 23 air inlets and will push away before rocking arm 22 drivings, the roller 221 of rocking arm 22 front ends is rolled in the dish edge of positioning disc 21, though this moment, the electric power of motor cut off, but motor has rotator inertia, so driving wheel 5A utilizes this inertia and still rotates, enter in concave arc groove 211 by the rolling of dish edge and locate until lift-over 221, driving wheel 5A can be given blocking and fixing conveyer belt 10, can carry out printing work for the decline of printing unit this of short duration intermittence constantly, again when printing work is finished, just make piston rod 231 refoulements of bucket cylinder 23 immediately, rocking arm 22 being broken away from the concave arc groove 211 of setting circles wheel 21, and then the power switch that touches motor impels driving wheel 5A to rotate; Be arranged to cooperate each change-over switch work by the member of indexing mechanism, can accurately locate printing for the cloth on the conveyer belt 10, in the hope of obtaining meticulous attractive in appearance and loyal colored printing pattern, and the service life that can guarantee motor.

Claims (1)

1, a kind of positioner of tyre type automatic silk screen printing machine, adjusting fastener by an indexing mechanism and is constituted, it is characterized in that indexing mechanism is hubbed on the driving wheel wheel shaft of rotational conveyance band by a setting circle dish, offer a concave arc groove with gradient on this positioning disc, can snap in therebetween for an action roller, this action roller then is installed in the front end of a rocking arm, other has the piston rod front end of a bucket cylinder to set the middle-end place that is linked in rocking arm movably, make it to impel the action roller of rocking arm intermittently to break away from every now and then or snap in the concave arc groove of positioning disc, and carry out the holding location by piston rod flexible; Regulate the both sides axle head that device for fastening then is installed in driven pulley, and this adjusting device for fastening is located in the screw of Rack Body by the set screw spiral shell, and the front end spiral shell is located at the set screw in the bearing block of driven pulley axle head, when acting on the set screw rotation advance and retreat of two symmetrical axle heads, can control the elasticity of conveyer belt, utilize the cooperation of this two mechanism, make to carry to have a feeding regularly and intermittently stop.

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