CN107757085A - Support shaft adjusting device in needle cylinder scale line silk-screen printing machine - Google Patents

Abstract

The invention provides the support shaft adjusting device in a kind of needle cylinder scale line silk-screen printing machine, belong to field of mechanical technique.It solves the problems, such as that existing screen printer can not print to the syringe of eccentric needle holder.In support shaft adjusting device in this needle cylinder scale line silk-screen printing machine, frame is provided with the actuating unit that support shaft two can be driven to rotate when fixed seat two is retracted, being additionally provided with frame can be by the circumferentially positioned detent mechanism of support shaft two after actuating unit driving support shaft two turns an angle, and the support shaft two described in when fixed seat two moves forward can depart from actuating unit and detent mechanism.This needle cylinder scale line silk-screen printing machine solve thes problems, such as that both ends brace type screen printer can not print the syringe of eccentric needle holder, its is simple in construction, versatile, strengthens the function of needle cylinder scale line silk-screen printing machine by setting support shaft adjusting device.

Description

Support shaft adjusting device in needle cylinder scale line silk-screen printing machine

Technical field

The invention belongs to field of mechanical technique, is related to a kind of screen printing device, in particularly a kind of needle cylinder scale line silk-screen printing machine Support shaft adjusting device.

Background technology

Screen printer as a kind of printing equipment be widely used in it is various medically such as needle cylinder surface figure Printing.Syringe is sent to below silk-screen print cartridge by existing needle cylinder scale line silk-screen printing machine by conveyer chain, then in transmission mechanism In the presence of drive syringe jacking silk-screen print cartridge move left and right under the drive of transmission mechanism, scraper is downward on silk-screen print cartridge Syringe is set to stamp pattern in the mobile silk screen that ink is scraped to print cartridge.

The conveyer chain of screen printer is set on sprocket wheel, and sprocket wheel rotates in the presence of motor, and motor is to pass through biography Moving axis imparts power to sprocket wheel, and the intermittent movement of conveyer chain is being realized by the switch of controlled motor.The transmission of screen printer Workpiece is sent to below silk-screen print cartridge by chain, and silk-screen print cartridge controls cylinder to realize that the left and right of silk-screen print cartridge is moved by control circuit It is dynamic.Scraper above silk-screen print cartridge moves up and down in the presence of controlling organization, and has a cylinder below silk-screen print cartridge, gas Cylinder is by movable block by syringe item to silk-screen print cartridge.In printing process, the support shaft that syringe both ends are set by frame both sides is entered Row positioning, when lifting body jacks up syringe to when being resisted against on silk-screen print cartridge, two support shafts move inward and top pressure is in pin The both ends of cylinder, support shaft can be rotated centered on own axes, thus during silk-screen printing, the frictional force band between silk screen and syringe Dynamic syringe rotates, to complete the printing of syringe outer peripheral face pattern.

Two support shafts in needle cylinder scale line silk-screen printing machine are respectively to be used to support the support shaft one of syringe end and be used for The support shaft two on syringe top is supported, the end of support shaft one, which has, to be used to convex edge of the top pressure in syringe, in support shaft two have There is the groove for placing needle holder.When the needle holder on syringe is located at syringe center, support shaft two can smoothly top pressure On syringe top, needle holder is set to stretch into groove.When needle holder of the printed syringe using bias, the end of support shaft two The groove in portion should also be positioned away from circle centre position, should because support shaft two is free to rotate, therefore before action is supported The initial orientation of support shaft two is adjusted, ensureing the needle holder of bias smoothly can enter in groove.And there is no pin in the prior art The device that support shaft two provided with eccentric groove is adjusted, the positioning method using both ends support is caused to be only applicable to print The printing of the centrally located syringe of needle holder, its poor universality.

The content of the invention

The purpose of the present invention is above mentioned problem be present for existing technology, it is proposed that a kind of production efficiency is high, printing quality Measured needle cylinder scale line screen printing device.

The purpose of the present invention can be realized by following technical proposal：A kind of support shaft in needle cylinder scale line silk-screen printing machine is adjusted Regulating device, needle cylinder scale line silk-screen printing machine include frame and are arranged at fixed seat one and fixed seat that frame both sides can slide back and forth Two, support shaft one and support shaft two, and the described He of support shaft one are connected in described fixed seat one and fixed seat two Support shaft two can be rotated centered on own axes, and the inner of the support shaft one, which has, is used for top pressure in the convex of syringe end Edge, the inner of described support shaft two have the groove for being used for placing needle holder, it is characterised in that described frame, which is provided with, to be worked as Fixed seat two can drive the actuating unit that support shaft two rotates when retracting, be additionally provided with described frame when actuating unit drives branch Support axle two can be by the circumferentially positioned detent mechanism of support shaft two after turning an angle, and the branch described in when fixed seat two moves forward Support axle two can depart from actuating unit and detent mechanism.

This support shaft adjusting device is applied in needle cylinder scale line silk-screen printing machine, when syringe to be printed is using eccentric syringe needle , need to be extremely identical with the needle holder orientation of syringe by the orientation adjustment of support shaft two during seat, support shaft two smoothly top pressure could exist The front end of syringe.

Fixed seat one and fixed seat two do reciprocating linear motion, and are clamped and unclamp the action of syringe, when fixed seat two When being moved rearwards, actuating unit drives support shaft two to rotate, and detent mechanism, which has one, can stretch into support shaft two bar set The keeper in shape hole, thus when actuating unit drives support shaft two to turn to certain angle, keeper stretches out and blocked such as bar shaped In hole that support shaft two is circumferentially fixed, now the orientation of two inner groove of support shaft is relative with syringe needle holder orientation to be supported Should；As fixed seat two moves forward, support shaft two departs from actuating unit, and after support shaft two departs from actuating unit, keeper departs from bar Shape hole, then the orientation of support shaft two be adjusted complete and it is free to rotate.

In support shaft adjusting device in above-mentioned needle cylinder scale line silk-screen printing machine, described actuating unit includes being arranged at Motor in frame and the driving wheel being connected on motor output shaft, and when support shaft two is retracted support shaft two outer peripheral face energy Contacted with the outer peripheral face of driving wheel.Support shaft two with fixed seat two retract when, support shaft two contacts with driving wheel, between the two Frictional force drive support shaft two rotate.

In support shaft adjusting device in above-mentioned needle cylinder scale line silk-screen printing machine, described driving wheel outer peripheral face, which has, to incline The oblique conical surface.The setting of driving wheel head is tapered, then can be smoothly when support shaft two is retracted equivalent to a curved guiding surface is formed Contacted with driving wheel and form tight fit with driving wheel.

In support shaft adjusting device in above-mentioned needle cylinder scale line silk-screen printing machine, described driving wheel is rubber wheel.Rubber Rubber tire has the advantages of coefficient of friction is big, and service life is long, and cost is relatively low, is adapted to work long hours.

Alternatively, in the support shaft adjusting device in above-mentioned needle cylinder scale line silk-screen printing machine, described is dynamic Force mechanisms include the motor that driving support shaft two rotates, and described motor controls its keying, described point by a touch switch Tactile switch is arranged on a support, and when described fixed seat two is retracted, fixed seat two can contact with touch switch.

Motor output shaft can be directly with support shaft two outer end couple, can also be coupled by belt wheel or other connecting modes, Motor does not influence freely rotating for support shaft two when closing, motor can drive support shaft two to rotate when opening, when the band of fixed seat two When dynamic support shaft two is retracted, fixed seat two contacts with touch switch, is rotated so as to open motor driven support shaft two, support shaft two After turning to certain angle and being positioned mechanism positioning, with the reach of fixed seat two, fixed seat two departs from touch switch, motor Stop operating, then the orientation of support shaft two regulation is completed.

In support shaft adjusting device in above-mentioned needle cylinder scale line silk-screen printing machine, described detent mechanism includes being arranged at Return alignment pin in fixed seat two, described return alignment pin is interior to be provided with the thimble that can stretch out alignment pin top, described branch Supportting has the bar hole that can coordinate with thimble on axle two, described thimble can stretch into it is support shaft two is circumferentially positioned in bar hole, Described frame is provided with can enable thimble stretch out return alignment pin, enabled when fixed seat two is advanced when fixed seat two is retracted Thimble takes in the guiding mechanism of return alignment pin.

Support shaft two is located at return alignment pin upper end, and can coordinate during thimble stretching with the bar hole in support shaft two, because And when fixed seat two is retracted, as actuating unit drives support shaft two to rotate, thimble stretches out return alignment pin, and stretches into bar shaped The position of support shaft two is blocked in hole, completes the circumferentially positioned of support shaft two.After the completion of the orientation adjustment of support shaft two, fixed seat two Reach, actuating unit depart from support shaft two, then thimble departs from bar hole, and support shaft two is free to rotate.The mesh of the guiding mechanism Be movable with support shaft two, stretching and the income of thimble are adjusted, to complete the adjustment in the orientation of support shaft two.

In support shaft adjusting device in above-mentioned needle cylinder scale line silk-screen printing machine, described guiding mechanism includes being arranged at The guide groove of return alignment pin side wall and connected with thimble and stretching guide groove connecting rod, described thimble and return alignment pin Between be provided with make thimble all the time have upward movement tendency spring, described frame be provided with one have spigot surface guiding Bar, described connecting rod can be resisted against on spigot surface all the time.

Connecting rod is connected with thimble, and connecting rod has the trend moved upwards all the time under the action of the spring, and guide rod is set It is placed in fixed in frame, connecting rod is resisted against on the spigot surface of guide rod.When fixed seat two moves forward and backward, connecting rod edge Spigot surface slip so that when fixed seat two moves forward and backward, connecting rod moves up and down under spigot surface effect, drives above and below thimble Motion.I.e. when being moved after fixed seat two, connecting rod rises under the action of the spring, and so as to stretch out return alignment pin, thimble is caught in branch Bar hole on support axle two realizes the circumferentially positioned of support shaft two；When fixed seat two when moved forward, connecting rod is in spigot surface In the presence of move down, so as to drive thimble income return alignment pin in.

In support shaft adjusting device in above-mentioned needle cylinder scale line silk-screen printing machine, axle is arranged with described connecting rod Hold, described bearing outer peripheral face is resisted against on above-mentioned spigot surface.Bearing is arranged in the position that connecting rod and spigot surface coordinate, by even The sliding friction of extension bar and spigot surface is converted into rolling friction, effectively reduces the friction loss of guide rod and connecting rod, increase production Product service life.

Compared with prior art, this needle cylinder scale line silk-screen printing machine efficiently solves two by setting support shaft adjusting device The problem of end brace type screen printer can not print the syringe of eccentric needle holder, its is simple in construction, versatile, strengthens syringe quarter Spend the function of line screen printer.

Brief description of the drawings

Fig. 1 is the structural representation of this needle cylinder scale line silk-screen printing machine；

Fig. 2 is the dimensional structure diagram of the support shaft adjusting device in this needle cylinder scale line silk-screen printing machine；

Fig. 3 is the side structure schematic view of the support shaft adjusting device in this needle cylinder scale line silk-screen printing machine；

Fig. 4 is Fig. 3 partial enlarged drawing.

In figure, 1, frame；1a, feed mechanism；1b, feed mechanism；1c, material jacking mechanism；1d, printing mechanism；1e, drying dress Put；1f, drawing mechanism；11st, motor；12nd, driving wheel；2nd, fixed seat one；3rd, fixed seat two；4th, support shaft one；41st, convex edge；5、 Support shaft two；51st, groove；6th, thimble；7th, return alignment pin；71st, bar hole；72nd, guide groove；8th, connecting rod；81st, bearing；9、 Guide rod；91st, spigot surface.

Embodiment

It is the specific embodiment of the present invention and with reference to accompanying drawing below, technical scheme is further described, But the present invention is not limited to these embodiments.

As shown in figure 1, this support shaft adjusting device is applied in needle cylinder scale line silk-screen printing machine, needle cylinder scale line silk-screen printing machine Related to including feed mechanism 1a, feed mechanism 1b, material jacking mechanism 1c, printing mechanism 1d, drying unit 1e and drawing mechanism 1f, this case And the support shaft adjusting device in needle cylinder scale line silk-screen printing machine.

As shown in Figures 2 and 3, needle cylinder scale line silk-screen printing machine includes frame 1 and is arranged at what the both sides of frame 1 can slide back and forth Support shaft 1 and support shaft 25 are connected in fixed seat 1 and fixed seat 23, fixed seat 1 and fixed seat 23, and Support shaft 1 and support shaft 25 can be rotated centered on own axes, when lifting body by syringe jack up to be resisted against silk-screen ink When on box, support shaft 1 and support shaft 25 move inward and top pressure can be using own axes in the both ends of syringe, support shaft The heart rotates.The inner of support shaft 1, which has, is used for top pressure in the convex edge 41 of syringe end, and the inner of support shaft 25, which has, to be used for Place the groove 51 of needle holder.This support shaft adjusting device is applied in needle cylinder scale line silk-screen printing machine, when syringe to be printed is adopted , need to be by the orientation adjustment of support shaft 25 to, support shaft two 5 ability identical with the needle holder orientation of syringe during with eccentric needle holder Can smoothly top pressure in the front end of syringe.This adjusting means is the initial orientation for being used to adjust support shaft 25 so that support shaft two 5 before action is clamped, and the orientation of its groove 51 is engaged with the needle holder orientation of syringe, ensures that support shaft 25 can be smoothly Clamping syringe.

This support shaft adjusting device includes the actuating unit being arranged in frame 1, the actuating unit when fixed seat 23 is retracted Support shaft 25 can be driven to rotate, being additionally provided with frame 1 will can prop up after actuating unit driving support shaft 25 turns an angle The circumferentially positioned detent mechanism of axle 25 is supportted, the detent mechanism includes the return alignment pin 7 being arranged in fixed seat 23, and return is fixed The thimble 6 that can stretch out alignment pin top is provided with the pin 7 of position, there is the bar hole 71 that can coordinate with thimble 6, top in support shaft 25 Pin 6 can stretch into support shaft 25 is circumferentially positioned in bar hole 71, and frame 1 is provided with can make thimble 6 when fixed seat 23 is retracted Stretch out return alignment pin 7, the guiding mechanism that thimble 6 takes in return alignment pin 7 can be enabled when fixed seat 23 is advanced.

Support shaft 25 is located at the upper end of return alignment pin 7, and can match somebody with somebody during the stretching of thimble 6 with the bar hole 71 in support shaft 25 Close, thus when fixed seat 23 is retracted, actuating unit drives support shaft 25 to start to rotate, as actuating unit drives support shaft 25 rotate, and thimble 6 stretches out return alignment pin 7, and stretch into bar hole 71 and block the position of support shaft 25, complete support shaft two 5 it is circumferentially positioned.After the completion of the orientation adjustment of support shaft 25, fixed seat 23 moves forward, and actuating unit departs from support shaft 25, and pushes up Pin 6 departs from bar hole 71, then support shaft 25 is free to rotate.The purpose of the guiding mechanism is with before and after support shaft 25 It is mobile, stretching and the income of thimble 6 are adjusted, to complete the adjustment in the orientation of support shaft 25.

Above-mentioned guiding mechanism includes the guide groove 72 for being arranged at the side wall of return alignment pin 7 and is connected and stretches out with thimble 6 The connecting rod 8 of guide groove 72, the bullet for making thimble 6 that there is upward movement tendency all the time is provided between thimble 6 and return alignment pin 7 Spring, frame 1 are provided with the guide rod 9 with spigot surface 91, and connecting rod 8 can be resisted against on spigot surface 91 all the time.Connecting rod 8 and top Pin 6 is connected, and connecting rod 8 has the trend moved upwards all the time under the action of the spring, and guide rod 9 is arranged in frame 1 fixed Motionless, one end that connecting rod 8 stretches out return alignment pin 7 is arranged with bearing 81, and the bearing 81 can be resisted against leading for guide rod 9 all the time To on face 91.When fixed seat 23 moves forward and backward, the bearing 81 of connecting rod 8 rolls along spigot surface 91 so that fixed seat 23 When movable, connecting rod 8 moves up and down under the effect of spigot surface 91, drives thimble 6 to move up and down.I.e. behind fixed seat 23 During shifting, connecting rod 8 rises under the action of the spring, and so as to stretch out return alignment pin 7, thimble 6 is caught in the bar hole in support shaft 25 71 realize the circumferentially positioned of support shaft 25；When fixed seat 23 when moved forward, connecting rod 8 in the presence of spigot surface 91 to Lower movement, so as to drive thimble 6 to take in return alignment pin 7.

Above-mentioned actuating unit is the motor 11 being arranged in frame 1 and the rubber wheel coupled with the output shaft of motor 11 12, and driving wheel outer peripheral face has the inclined conical surface, the setting of driving wheel head is tapered, it is oriented to arc equivalent to forming one Face, then it can smoothly be contacted when support shaft 5 is retracted with driving wheel and form tight fit with driving wheel.Rubber wheel 12 has coefficient of friction Greatly, the advantages of service life is long, and cost is relatively low, is adapted to work long hours.

The course of work of support shaft governor motion in this needle cylinder scale line silk-screen printing machine is as follows：Support shaft 1 and support shaft 25 is reciprocating with fixed seat 1 and fixed seat 23, realizes the action for clamping and unclamping syringe.When fixed seat 23 to During retrogressing, the outer end of support shaft 25 contacts with driving wheel, and driving wheel drives support shaft 25 to rotate, then in connecting rod 8 and guiding In the presence of bar 9, thimble 6 stretches out return alignment pin 7, and thimble 6 is stretched into support shaft two in the bar hole 71 of the outer end of support shaft 25 5 is circumferentially fixed, and now the inner groove 51 of support shaft 25 is located at upper end, because the needle holder initial position of syringe also is located at End, thus this orientation can just be such that the inner groove 51 of support shaft 25 coordinates with needle holder；Now fixed seat 23 moves forward, support The outer end of axle 25 departs from driving wheel, then support shaft 25 is not by any driving force, and with the reach of fixed seat 23, guide rod 9 drives Dynamic thimble 6 is to the contract of return alignment pin 7, then thimble 6 departs from bar hole 71, thus support shaft 25 can smoothly top pressure in pin The front end of cylinder, and can freely be rotated using Pivot Point Center as axis, complete silk-screen action.

Specific embodiment described herein is only to spirit explanation for example of the invention.Technology belonging to the present invention is led The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.

Claims (8)

1. the support shaft adjusting device in a kind of needle cylinder scale line silk-screen printing machine, needle cylinder scale line silk-screen printing machine includes frame (1) and set It is placed in fixed seat one (2) and fixed seat two (3) that frame (1) both sides can slide back and forth, described fixed seat one (2) and fixed seat Support shaft one (4) and support shaft two (5), and described support shaft one (4) and support shaft two (5) energy are connected on two (3) Rotated centered on own axes, the inner of the support shaft one (4), which has, is used for top pressure in the convex edge of syringe end (41), institute The inner for the support shaft two (5) stated has the groove (51) for being used for placing needle holder, it is characterised in that in described frame (1) Provided with the actuating unit that support shaft two (5) can be driven to rotate when fixed seat two (3) is retracted, described frame is additionally provided with (1) Can be by the circumferentially positioned detent mechanism of support shaft two (5) after actuating unit driving support shaft two (5) turns an angle, and work as Support shaft two (5) described in when fixed seat two (3) moves forward can depart from actuating unit and detent mechanism.

2. the support shaft adjusting device in needle cylinder scale line silk-screen printing machine according to claim 1, it is characterised in that described Actuating unit includes the motor (11) being arranged in frame (1) and the driving wheel (12) being connected on motor (11) output shaft, and When support shaft two (5) is retracted, the outer peripheral face of support shaft two (5) can contact with the outer peripheral face of driving wheel (12).

3. the support shaft adjusting device in needle cylinder scale line silk-screen printing machine according to claim 2, it is characterised in that described Driving wheel (12) outer peripheral face has the inclined conical surface.

4. the support shaft adjusting device in needle cylinder scale line silk-screen printing machine according to Claims 2 or 3, it is characterised in that institute The driving wheel (12) stated is rubber wheel.

5. the support shaft adjusting device in needle cylinder scale line silk-screen printing machine according to claim 1, it is characterised in that described Actuating unit includes the motor (11) that driving support shaft two (5) rotates, and described motor (11) controls it by a touch switch Open and close, described touch switch is arranged on a support, and when described fixed seat two (3) is retracted, and fixed seat two (3) can be with Touch switch contacts.

6. the support shaft adjusting device in needle cylinder scale line silk-screen printing machine according to claim 1 or 2 or 3, it is characterised in that Described detent mechanism includes the return alignment pin (7) being arranged in fixed seat two (3), is set in described return alignment pin (7) The thimble (6) on alignment pin top can be stretched out by having, and have the bar hole that can coordinate with thimble (6) in described support shaft two (5) (71), described thimble (6) can be stretched into bar hole (71) that support shaft two (5) is circumferentially positioned, and described frame (1) is provided with Thimble (6) can be enable to stretch out return alignment pin (7), enable thimble when fixed seat two (3) is advanced when fixed seat two (3) is retracted (6) guiding mechanism of return alignment pin (7) is taken in.

7. the support shaft adjusting device in needle cylinder scale line silk-screen printing machine according to claim 6, it is characterised in that described Guiding mechanism includes the guide groove (72) for being arranged at return alignment pin (7) side wall and and stretching guide groove connected with thimble (6) (72) connecting rod (8), being provided between described thimble (6) and return alignment pin (7) makes thimble (6) have motion upwards all the time The spring of trend, described frame (1), which is provided with one, has the guide rod (9) of spigot surface (91), and described connecting rod (8) can begin It is resisted against eventually on spigot surface (91).

8. the support shaft adjusting device in needle cylinder scale line silk-screen printing machine according to claim 7, it is characterised in that described Bearing (81) is arranged with connecting rod (8), described bearing (81) outer peripheral face is resisted against on above-mentioned spigot surface (91).