CN115611046B

CN115611046B - Automatic positioning and winding device for material roll of gravure printing machine

Info

Publication number: CN115611046B
Application number: CN202211631733.6A
Authority: CN
Inventors: 张迎春; 文成; 王中凯; 牧青
Original assignee: Jiangsu Hi Print Electromechanical Science & Technology Co ltd
Current assignee: Jiangsu Hi Print Electromechanical Science & Technology Co ltd
Priority date: 2022-12-19
Filing date: 2022-12-19
Publication date: 2023-03-28
Anticipated expiration: 2042-12-19
Also published as: CN115611046A

Abstract

The invention discloses an automatic positioning and feeding device for a material roll of an intaglio printing machine, which relates to the field of material roll feeding of the intaglio printing machine and solves the problem that the conventional feeding device needs to repeatedly adjust and displace the material roll in the transverse direction.

Description

Automatic positioning and winding device for material roll of gravure printing machine

Technical Field

The invention relates to the field of material roll feeding of gravure printing machines, in particular to an automatic material roll positioning and feeding device of a gravure printing machine.

Background

Intaglio printing is called gravure for short, and is one of four printing modes. Intaglio printing is a direct printing method, which directly imprints the ink contained in intaglio pits on a printing stock, wherein the shade level of the printed picture is determined by the size and the depth of the pits, and the material roll of the intaglio printing machine is fed by a feeding device at present, so that the labor force of manual feeding is reduced.

The existing automatic winding device is convenient to lift a material roll in the process of feeding the material roll, and the axis of the material roll is aligned with the axis of a tip cone on a printer frame, but after the material roll is placed on a material table of the automatic winding device by a forklift, the material roll cannot be ensured to be positioned in the middle of the material table, namely when the automatic winding device is operated to feed the material roll, the material roll needs to be axially displaced by an electric push rod or a hydraulic rod, so that the material roll is positioned in the center between two tip cones, the material roll can be fixed in the middle of the printer frame by the extension of the tip cone, but the axial displacement distance of the material roll needs to be manually and repeatedly debugged, the whole feeding time is prolonged, and therefore, the automatic positioning winding device for the material roll of the gravure printer is provided.

Disclosure of Invention

The invention aims to provide an automatic material roll positioning and winding device of a gravure printing machine, which can automatically enable a material roll to be positioned at the axis position of a material table, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the automatic material roll positioning and winding device of the gravure printing machine comprises a printing machine frame and a device casing arranged at the rear of the printing machine frame, wherein two symmetrically-distributed sleeves are fixedly arranged on the inner side of the printing machine frame, tip cones are arranged at opposite ends of the two sleeves, a lifting table is sleeved on the inner side of the device casing in a sliding manner, two groups of symmetrically-distributed limiting plates are embedded in the upper end of the lifting table in a sliding manner, the number of each group of limiting plates is two, the included angle between the two oppositely-distributed limiting plates is greater than ninety degrees, the lower ends of the limiting plates are embedded in the device casing in a sliding manner, and one end, away from the transverse central axis of the lifting table, of each limiting plate is provided with a first spring; the lifting mechanism capable of lifting the lifting platform is arranged between the device casing and the lifting platform, and the upper end of the lifting platform is also provided with a supporting mechanism capable of supporting a material roll and an adjusting mechanism capable of adjusting the position of the material roll; the toggle mechanism can be used for adjusting the transverse position of the tip cone and is arranged in the sleeve, and two sets of limiting plates which are oppositely distributed can limit the material roll.

Preferably, bearing mechanism include slidable mounting in inside two of elevating platform are the symmetry and arrange the bearing slide, just the upper end of bearing slide is rotated and is installed a plurality of and changes the roller, the inside fixed mounting of elevating platform has two sets of stop collars, just the bearing slide with the gomphosis of stop collar slip, the lower extreme of bearing slide corresponds the internally mounted of stop collar has spring two, two install the slip subassembly between the bearing slide, and the bearing slide is all applyed to the weight of material book and is adjusted on the rubber tyer.

Preferably, the sliding assembly includes that the articulated installation is in two the connecting rod of bearing slide bottom, just the connecting rod is kept away from the articulated sliding block seat of installing of one end of bearing slide, the middle part fixed mounting of elevating platform has the slide rail, and two the upper end of sliding block seat slides and inlays in the inside of slide rail, two install the sliding block between the sliding block seat, just the sliding block is sliding connection with the slide rail, sliding block and two equal fixed mounting has spring three between the sliding block seat, wherein the sliding block is in the central point of slide rail under initial condition and puts, and is connected with the sliding block through two completely unanimous spring three.

Preferably, adjustment mechanism include use the slide rail as the axle center be the symmetry fixed inlay in two loop bars of elevating platform inside, the upper end of loop bar is rotated through a company axle and is installed the regulation rubber tyer, just the lower extreme of loop bar rotates through a company axle two and installs the helical gear, the loop bar with drive belt one is installed in the transmission between the helical gear, the inner wall top fixed mounting of elevating platform has two mounting brackets, just the inside of mounting bracket is installed crown gear through a company axle three rotations, just crown gear with helical gear swing joint, two rotate between the mounting bracket and inlay two and use a company axle three to be the pivot that the axis is symmetric distribution, two pivot and the transmission belt two is installed in the transmission of the three outsides of link axle, transmission assembly is installed in the outside of pivot, and wherein adjust the rubber tyer is equivalent to the elevating platform fulcrum, and roll the material and roll up material and roll up the upper end of elevating platform.

Preferably, the transmission assembly comprises a first sleeve block and a second sleeve block which are respectively sleeved on the outer side of the rotating shaft in a sliding manner, a transmission gear is movably mounted between the rotating shafts, a synchronizing wheel is mounted at the front end of the first sleeve block and the front end of the transmission gear, the synchronizing wheel is movably attached to the first sleeve block, the synchronizing wheel is fixedly connected with the transmission gear, a third transmission belt is mounted between the two synchronizing wheels, a toothed wheel is fixedly mounted at the front end of the second sleeve block and is movably meshed with the toothed wheel, the toothed wheel faces towards one end of the first sleeve block, a plurality of hemispherical grooves are formed in the first sleeve block and the second sleeve block, a plurality of round-head jacks are elastically mounted in the first sleeve block and are movably embedded in the hemispherical grooves, the ends of the round-head jacks are respectively hemispherical grooves, a straight rod is fixedly mounted in the transmission gear, a support is movably sleeved on the outer side of the straight rod, the support is fixedly connected with the lifting platform, a reverse clamping assembly is mounted between the rotating shaft and the sliding block and synchronously rotates together with the transmission gear.

Preferably, the screens subassembly including fixed mounting in nest block one with the latch gear of two rear ends of nest block, two there is the sliding sleeve through connecting plate fixed mounting between the mounting bracket, the lower extreme fixed mounting of sliding block has the slide bar, just the slide bar slide inlay in the inboard of sliding sleeve, the both sides bottom of slide bar all is equipped with the hypotenuse ladder portion, the inside slip of sliding sleeve has inlayed the fixture block, just the lower extreme of fixture block with latch gear activity block, the fixture block is kept away from one side of latch gear with fixed mounting has the extension spring between the sliding sleeve, nest block one with a plurality of straight flute mouth, two are all seted up to nest block two inside a plurality of isosceles ladder pieces, just isosceles ladder piece activity inlay in the inside of straight flute mouth, when the pivot can't rotate, its isosceles ladder piece still receives under great torsional force effect, and the straight flange accessible isosceles ladder piece's hypotenuse sheave of its straight flute mouth compresses spring four, makes the isosceles ladder piece retract to the inside of pivot for nest block one or tooth are at the surface of pivot.

Preferably, elevating system inlay including rotating in the optical axis and two screw rods of elevating platform bottom, the optical axis with the screw rod with the orientation of pivot is unanimous, two the screw rod with the optical axis symmetric distribution, and two the screw thread of screw rod is opposite, the movable block has been cup jointed to the outside screw thread of screw rod, just the movable block with the articulated vaulting pole of installing between the device cover shell, it is two sets of the vaulting pole is crisscross distribution, the optical axis with drive belt four is installed in the transmission between the straight-bar, the inside fixed mounting of elevating platform has the motor, just the output of motor with drive belt five is installed in the transmission between the optical axis, and when wherein the motor drove two screw rods anticlockwise rotations, the vaulting pole can slowly be vertical and with the elevating platform jack-up.

Preferably, dial the mechanism including slidable mounting in the inside extension rod of sleeve, just the apical cone rotate cup joint in the outside of extension rod, the extension rod is kept away from the one end of apical cone is installed spring five, L type groove has been seted up in the telescopic outside, the fixed surface of extension rod installs the driving lever, just the driving lever with L type groove is sliding connection, sleeve and one of them install between the vaulting pole and touch the subassembly, inlay when the driving lever in the minor face in L type groove, the apical cone is in the state of contracting this moment, and spring five is in compression state.

Preferably, the touch assembly comprises an extrusion block fixedly mounted on one of the upper end surfaces of the supporting rods, a sealing barrel is fixedly embedded at the rear end of the device casing, a piston rod is elastically mounted in the sealing barrel through a return spring, the front end of the piston rod movably penetrates through the sealing barrel, an arc-shaped sleeve is fixedly mounted on the outer side of the sleeve, a connecting pipe is communicated between the rear end of the sealing barrel and the bottom of the arc-shaped sleeve, an arc-shaped push rod is slidably mounted in the arc-shaped sleeve through a piston column, and when the arc-shaped push rod is ejected, the shift rod can be pushed.

Preferably, the tooth surface of the clamping gear and the lower end surface of the clamping block are both arc surfaces, so that the clamping block can be directly clamped with the clamping gear when descending.

Compared with the prior art, the invention has the beneficial effects that:

the transmission component and the adjusting mechanism can be simultaneously touched in the process of lifting the lifting platform by driving the screw rod to rotate through the motor, and the material roll can not be guaranteed to be placed at the middle end position when placed on the lifting platform, namely, the transmission component and the adjusting mechanism are touched in the lifting process of the lifting platform, so that the position of the material roll can be adjusted through adjusting the rubber wheel, the material roll can be gradually positioned at the central position of the lifting platform in the lifting process, namely, the material roll can be directly fastened and installed through the tip cone after being lifted, the position of the material roll does not need to be repeatedly adjusted manually, and the material changing efficiency is effectively guaranteed.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of another embodiment of the present invention;

FIG. 3 is a schematic view of a spring according to the present invention;

FIG. 4 is a schematic view of the internal structure of the elevating platform of the present invention;

FIG. 5 is a schematic view of a supporting slide according to the present invention;

FIG. 6 is a schematic structural view of a first set block and a second set block of the present invention;

FIG. 7 is a schematic view of the internal structure of the synchronizing wheel and the rotating shaft according to the present invention;

FIG. 8 is a schematic view of the slider structure of the present invention;

FIG. 9 is a schematic view of a slide bar construction of the present invention;

FIG. 10 is an enlarged view taken at A of FIG. 9 in accordance with the present invention;

FIG. 11 is a diagram illustrating a fixture block structure according to the present invention;

FIG. 12 is a schematic view of the piston rod structure of the present invention

FIG. 13 is a schematic view of an L-shaped groove structure according to the present invention.

In the figure: 1-a printer frame; 2-device housing; 3-a lifting platform; 4-a limiting plate; 5, a first spring; 6-a sleeve; 7-an extension rod; 8-tip cone; 9-a supporting mechanism; 10-an adjustment mechanism; 11-a lifting mechanism; 12-a transmission assembly; 13-a sliding assembly; 14-a toggle mechanism; 15-a touch assembly; 16-a bearing slide seat; 17-a rotating roller; 18-a stop collar; 19-spring two; 20-a connecting rod; 21-a loop bar; 22-adjusting rubber wheels; 23-a helical gear; 24-a crown gear; 25-a rotating shaft; 26-a mounting frame; 27-a motor; 28-optical axis; 29-screw; 30-a strut; 31-a slider seat; 32-a slider; 33-spring three; 34-a toothed sheave; 35-a first set of blocks; 36-a transmission gear; 37-a snap gear; 38-a sliding sleeve; 39-a slide bar; 40-straight notch; 41-an isosceles ladder block; 42-spring four; 43-a latch; 44-a tension spring; 45-sealing the cylinder; 46-a piston rod; 47-connecting pipe; 48-an extrusion block; 49-spring five; a 50-L-shaped groove; 51-a deflector rod; 52-arc push rod; 53-set of blocks II; 54-hemispherical groove; 55-round top column.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-4, the illustrated automatic roll positioning and rolling device for a roll of an intaglio printing press comprises a printing press frame 1 and a device casing 2 installed behind the printing press frame 1, wherein two symmetrically distributed sleeves 6 are fixedly installed on the inner side of the printing press frame 1, tip cones 8 are installed at the opposite ends of the two sleeves 6, a lifting table 3 is slidably sleeved on the inner side of the device casing 2, two groups of symmetrically distributed limiting plates 4 are slidably embedded at the upper end of the lifting table 3, the number of each group of limiting plates 4 is two, the included angle between the two oppositely distributed limiting plates 4 is greater than ninety degrees, the lower ends of the limiting plates 4 are slidably embedded in the device casing 2, and a first spring 5 is installed at one end of each limiting plate 4, which is far away from the transverse central axis of the lifting table 3; a lifting mechanism 11, wherein the lifting mechanism 11 capable of lifting the lifting platform 3 is arranged between the device casing 2 and the lifting platform 3, the upper end of the lifting platform 3 is also provided with a supporting mechanism 9 capable of supporting the material roll and an adjusting mechanism 10 capable of adjusting the position of the material roll; the toggle mechanism 14, the toggle mechanism 14 that can adjust the lateral position of the tip cone 8 are installed in the sleeve 6, wherein the two sets of limiting plates 4 that are distributed oppositely can play a limiting role on the material roll.

Referring to fig. 5, in the figure, the supporting mechanism 9 includes two symmetrically arranged supporting sliders 16 slidably mounted inside the lifting platform 3, a plurality of rotating rollers 17 are rotatably mounted at the upper ends of the supporting sliders 16, two sets of limiting sleeves 18 are fixedly mounted inside the lifting platform 3, the supporting sliders 16 are slidably embedded in the limiting sleeves 18, a second spring 19 is mounted inside the lower end of the supporting sliders 16 corresponding to the limiting sleeves 18, a sliding component 13 is mounted between the two supporting sliders 16, and the supporting sliders 16 and the rubber adjusting wheel 22 are applied to the weight of the material roll.

Referring to fig. 8, in the drawing, the sliding assembly 13 includes a connecting rod 20 hinged to the bottoms of two supporting sliding seats 16, one end of the connecting rod 20 away from the supporting sliding seats 16 is hinged to a sliding block seat 31, a sliding rail is fixedly installed in the middle of the lifting platform 3, the upper ends of the two sliding block seats 31 are slidably embedded in the sliding rail, a sliding block 32 is installed between the two sliding block seats 31, the sliding block 32 is slidably connected to the sliding rail, and springs three 33 are fixedly installed between the sliding block 32 and the two sliding block seats 31, wherein the sliding block 32 is located at the center of the sliding rail in an initial state and is connected to the sliding block 32 through two identical springs three 33.

Referring to fig. 5, in the figure, the adjusting mechanism 10 includes two loop bars 21 symmetrically fixed and embedded in the lifting platform 3 by taking the slide rail as an axis, an adjusting rubber wheel 22 is rotatably installed at the upper end of the loop bar 21 through a first connecting shaft, a helical gear 23 is rotatably installed at the lower end of the loop bar 21 through a second connecting shaft, a first transmission belt is installed between the loop bar 21 and the helical gear 23 in a transmission manner, two mounting frames 26 are fixedly installed at the top of the inner wall of the lifting platform 3, a crown gear 24 is rotatably installed in the mounting frames 26 through a third connecting shaft, the crown gear 24 is movably engaged with the helical gear 23, two rotating shafts 25 symmetrically distributed by taking the third connecting shaft as an axis are rotatably embedded between the two mounting frames 26, a second transmission belt is installed outside the two rotating shafts 25 and the third connecting shaft in a transmission manner, a second transmission belt is installed outside the rotating shafts 25, wherein the adjusting rubber wheel 22 is equivalent to a fulcrum at the upper end of the lifting platform 3, and as long as the material roll is not in a central position, the two ends of the material roll 16 are under different pressures.

Referring to fig. 6 and 7, in the illustration, the transmission assembly 12 includes a first sleeve block 35 and a second sleeve block 53 respectively slidably sleeved on the outer sides of the two rotating shafts 25, a transmission gear 36 is movably installed between the two rotating shafts 25, synchronizing wheels are installed at the front ends of the first sleeve block 35 and the transmission gear 36, the synchronizing wheels are movably attached to the first sleeve block 35, the synchronizing wheels are fixedly connected to the transmission gear 36, a third transmission belt is installed between the two synchronizing wheels, a toothed grooved wheel 34 is fixedly installed at the front end of the second sleeve block 53, the transmission gear 36 is movably engaged with the toothed grooved wheel 34, a plurality of hemispherical grooves 54 are respectively formed in the ends of the toothed grooved wheel 34 and the synchronizing wheel facing the first sleeve block 35, a plurality of round-head top columns 55 are elastically installed in the first sleeve block 35 and the second sleeve block 53, the round-head top columns 55 are movably engaged with the hemispherical grooves 54, the ends of the round-head top columns 55 and the hemispherical grooves 54 are both in the form a straight rod, a straight rod is movably installed in the outer side of the first sleeve block 35, the support is fixedly connected to the lifting platform 3, a clamping assembly is installed between the rotating with the sliding block 25 and the sliding block 32, the transmission gear 34 and the transmission gear 36 rotates in the same direction as the synchronous block 35.

Referring to fig. 9-11, the illustrated clamping assembly includes a first sleeve block 35 and a second sleeve block 53, a sliding sleeve 38 is fixedly mounted between the two mounting brackets 26 through a connecting plate, a sliding rod 39 is fixedly mounted at a lower end of the sliding block 32, the sliding rod 39 is slidably embedded in the inner side of the sliding sleeve 38, bevel edge steps are disposed at bottoms of two sides of the sliding rod 39, a clamping block 43 is slidably embedded in the sliding sleeve 38, a lower end of the clamping block 43 is movably engaged with the clamping gear 37, a tension spring 44 is fixedly mounted between a side of the clamping block 43 away from the clamping gear 37 and the sliding sleeve 38, a plurality of straight slots 40 are disposed in the first sleeve block 35 and the second sleeve block 53, a plurality of isosceles ladders 41 are elastically mounted in the two rotating shafts 25 through a fourth spring 42, the isosceles ladders 41 are movably embedded in the straight slots 40, and when the rotating shaft 25 cannot rotate, the isosceles ladders 41 still receive a large torsional force, the straight edges of the straight slots 40 can pass through the straight edges of the isosceles ladders 41 to compress the fourth spring 42, so that the isosceles ladders 41 retract into the inner portion of the sleeve block 25, and the sleeve 35 or the outer surface of the rotating shaft 34 is located on the outer surface of the rotating shaft 25.

Referring to fig. 5 and 12, in the illustration, the lifting mechanism 11 includes an optical axis 28 and two screws 29 rotatably embedded in the bottom of the lifting platform 3, the optical axis 28 and the screws 29 are oriented in the same direction as the rotating shaft 25, the two screws 29 are symmetrically distributed about the optical axis 28, the threads of the two screws 29 are opposite, the outer threads of the screws 29 are sleeved with a moving block, support rods 30 are hinged between the moving block and the device housing 2, the two sets of support rods 30 are distributed in a staggered manner, a fourth transmission belt is installed between the optical axis 28 and the straight rod, a motor 27 is fixedly installed inside the lifting platform 3, a fifth transmission belt is installed between the output end of the motor 27 and the optical axis 28, and when the motor 27 drives the two screws 29 to rotate counterclockwise, the support rods 30 are slowly erected and jack up the lifting platform 3.

The working principle of leveling the position of the material roll automatically is as follows: the material roll is placed above the lifting platform 3 by a forklift, the situation that the material roll is placed at the central position of the lifting platform 3 cannot be judged, and the position of the material roll has a large error with the central position, and because the material roll is not placed at the central position of the upper end of the lifting platform 3, under the propping of the two adjusting rubber wheels 22, the material roll is like a lever, and the material roll can exert gravity on the two bearing sliding seats 16 while being heavy and light;

when the material roll is wholly deviated to the left, namely the downward displacement degree of the supporting slide carriage 16 positioned on the left is larger than the downward displacement degree of the right, the sliding block 32 is positioned at the central position in fig. 7, when the downward displacement degree of the supporting slide carriage 16 positioned on the left is larger than the downward displacement degree of the right, the sliding block 32 is pulled by the connecting rod 20 to be deviated to the left to slide, at the moment that the sliding block 32 slides to the left, the clamping block 43 distributed on the right can rapidly move upwards under the action of the tension spring 44 and is attached to the inclined edge step part of the sliding rod 39, after the clamping block 43 on the right no longer limits the clamping gear 37, the motor 27 drives the screw 29 to rotate anticlockwise, when the lifting platform 3 moves upwards through the support rod 30, the optical axis 28 can drive the transmission gear 36 to rotate anticlockwise, because the clamping gear 37 on the left is in a clamping state, namely, the left rotating shaft 25 cannot rotate, at this time, the hemispherical groove 54 in the synchronizing wheel can apply larger pressure to the round-head jack 55, so that the round-head jack 55 retracts into the first sleeve block 35, the synchronizing wheel distributed on the outer side of the rotating shaft 25 idles, when the transmission gear 36 rotates anticlockwise to drive the toothed wheel 34 to rotate clockwise, because the latch gear 37 distributed at the rear end of the second sleeve block 53 is not latched, namely, the transmission gear 36 can drive the second sleeve block 53 and the rotating shaft 25 therein to rotate clockwise, and at this time, the latch gear 37 distributed on the outer portion of the left rotating shaft 25 is in a latched state, namely, when the left rotating shaft 25 rotates, the isosceles trapezoid block 41 retracts into the rotating shaft 25, so that the left rotating shaft 25 idles clockwise, at this time, the rubber wheel 22 is adjusted to rotate clockwise, and the material roll can move rightwards by deviating towards the left side;

in the moving process, the displacement amounts of the two bearing sliding seats 16 are gradually consistent, namely the sliding block 32 is gradually reset and moves to the central position of the sliding rail, after the sliding block 32 is reset, the clamping block 43 on the right side can be directly extruded through the inclined edge step portion of the sliding rod 39, so that the clamping block 43 limits the clamping gear 37 again, namely after the material roll moves to the central position, the two rotating shafts 25 are in a limiting and clamping state, at the moment, the toothed groove wheel 34 and the sleeve block I35 idle in the lifting process of the lifting platform 3, namely, the material roll can be automatically moved to the central position in the lifting process of the lifting platform 3, manual repeated adjustment on the transverse position of the material roll is not needed, and the feeding efficiency is improved;

if the whole material roll deviates to the right side of the lifting platform 3, namely the states of the two groups of rotating shafts 25 in the above steps are opposite, the rubber wheel 22 can be adjusted to rotate anticlockwise, and the material roll deviating to the right side moves towards the left.

Example 2

Referring to fig. 13, in this embodiment, as further described in embodiment 1, the toggle mechanism 14 includes an extension rod 7 slidably mounted inside the sleeve 6, the extension rod 8 is rotatably sleeved outside the extension rod 7, a spring five 49 is mounted at one end of the extension rod 7 far away from the extension rod 8, an L-shaped groove 50 is formed in the outer side of the sleeve 6, a toggle lever 51 is fixedly mounted on the outer surface of the extension rod 7, the toggle lever 51 is slidably connected to the L-shaped groove 50, a touch component 15 is mounted between the sleeve 6 and one of the support rods 30, and when the toggle lever 51 is embedded in a short side of the L-shaped groove 50, the toggle rod 8 is in a retracted state and the spring five 49 is in a compressed state.

Referring to fig. 12 and 13, the trigger assembly 15 includes an extruding block 48 fixedly mounted on an upper end surface of one of the supporting rods 30, a sealing cylinder 45 is fixedly embedded at a rear end of the device housing 2, a piston rod 46 is elastically mounted inside the sealing cylinder 45 through a return spring, a front end of the piston rod 46 movably penetrates through the sealing cylinder 45, an arc-shaped sleeve is fixedly mounted on an outer side of the sleeve 6, a connecting pipe 47 is communicated between the rear end of the sealing cylinder 45 and a bottom of the arc-shaped sleeve, an arc-shaped push rod 52 is slidably mounted inside the arc-shaped sleeve through a piston column, and when the arc-shaped push rod 52 is ejected, the shift lever 51 can be pushed.

In this embodiment: when the lifting platform 3 is about to be lifted to the maximum value, namely the support rod 30 is about to be erected to the maximum state, the extrusion block 48 at the rear end of the support rod 30 can extrude the piston rod 46, wherein the sealing cylinder 45 and the connecting pipe 47 are filled with liquid, after the piston rod 46 is pushed, the arc push rod 52 can be pushed out, the arc push rod 52 can push the shift rod 51, the shift rod 51 is not clamped with the short side of the L-shaped groove 50, at the moment, under the elastic force of the spring five 49, the extension rod 7 can quickly push the tip cone 8 out, the winding drum at the axis of the material roll is limited, when the material roll is lifted to the position which is about to be coaxial with the tip cone 8, the tip cone 8 extends out in advance and is embedded with the winding drum in the material roll in advance until the material roll is moved to the position which is coaxial with the axis, the center of the tip cone 8 is concentric with the winding drum, and the automatic winding limit of the material roll is realized.

Example 3

Referring to fig. 11, the present embodiment further illustrates that, for other embodiments, both the tooth surface of the latch gear 37 and the lower end surface of the latch 43 are arc surfaces.

In this embodiment: the reason why the tooth surface of the latch gear 37 and the lower end surface of the latch 43 are arc surfaces is to ensure that the latch 43 cannot be effectively engaged with the latch gear 37 at the first time because the contact surface of the latch 43 and the contact surface is a plane in the descending process of the latch 43, so that the rotation accuracy of the rotating shaft 25 can be ensured.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a gravure press's material book automatic positioning device of rolling up, include printing machine frame (1) and install in device cover shell (2) at printing machine frame (1) rear, the inboard fixed mounting of printing machine frame (1) has two sleeves (6) that are the symmetric distribution, two tip cone (8), its characterized in that are installed to the end in opposite directions of sleeve (6): the lifting table (3) is sleeved on the inner side of the device casing (2) in a sliding manner, two groups of limiting plates (4) which are symmetrically distributed are embedded at the upper end of the lifting table (3) in a sliding manner, the number of each group of limiting plates (4) is two, the included angle between the two limiting plates (4) which are oppositely distributed is more than ninety degrees, the lower ends of the limiting plates (4) are embedded in the device casing (2) in a sliding manner, and one ends, far away from the transverse central axis of the lifting table (3), of the limiting plates (4) are provided with first springs (5);

a lifting mechanism (11), wherein the lifting mechanism (11) capable of lifting the lifting platform (3) is arranged between the device casing (2) and the lifting platform (3), the upper end of the lifting platform (3) is also provided with a bearing mechanism (9) capable of bearing a material roll and an adjusting mechanism (10) capable of adjusting the position of the material roll;

the dial-up mechanism (14) is arranged in the sleeve (6), and can adjust the transverse position of the tip cone (8);

the bearing mechanism (9) comprises two bearing sliding seats (16) which are arranged symmetrically and arranged in the lifting platform (3) in a sliding mode, a plurality of rotating rollers (17) are installed at the upper end of each bearing sliding seat (16) in a rotating mode, two groups of limiting sleeves (18) are fixedly installed in the lifting platform (3), the bearing sliding seats (16) are embedded with the limiting sleeves (18) in a sliding mode, springs (19) are installed at the lower ends of the bearing sliding seats (16) corresponding to the limiting sleeves (18), and a sliding assembly (13) is installed between the two bearing sliding seats (16);

the sliding assembly (13) comprises connecting rods (20) which are hinged to the bottoms of the two bearing sliding seats (16), sliding block seats (31) are hinged to one ends, far away from the bearing sliding seats (16), of the connecting rods (20), sliding blocks (32) are installed between the two sliding block seats (31), the sliding blocks (32) are connected with the sliding rails in a sliding mode, and springs III (33) are fixedly installed between the sliding blocks (32) and the two sliding block seats (31);

adjustment mechanism (10) including use the slide rail to be the symmetry fixed inlay as the axle center in elevating platform (3) two inside loop bars (21), the upper end of loop bar (21) is rotated through a pivot and is installed regulation rubber tyer (22), just the lower extreme of loop bar (21) is rotated through a pivot two and is installed helical gear (23), loop bar (21) with the transmission is installed drive belt one between helical gear (23), the inner wall top fixed mounting of elevating platform (3) has two mounting bracket (26), just crown gear (24) are installed through a pivot three rotation to the inside of mounting bracket (26), just crown gear (24) with helical gear (23) swing joint, two rotate between mounting bracket (26) and inlay two pivot (25) that are the symmetric distribution for the axis with a pivot three, two pivot (25) and a pivot three outside transmission install the drive belt two, transmission component (12) are installed to the outside of pivot (25).

2. Automatic positioning and winding device for material rolls of intaglio printing presses according to claim 1, characterized in that: the transmission assembly (12) comprises a first sleeve block (35) and a second sleeve block (53) which are respectively sleeved outside the two rotating shafts (25) in a sliding manner, a transmission gear (36) is movably arranged between the two rotating shafts (25), the front ends of the first sleeve block (35) and the transmission gear (36) are respectively provided with a synchronizing wheel which is movably jointed with the first sleeve block (35), the synchronizing wheels are fixedly connected with the transmission gear (36), a third transmission belt is arranged between the two synchronizing wheels, a toothed wheel (34) is fixedly arranged at the front end of the second sleeve block (53), and the transmission gear (36) is movably meshed with the toothed wheel (34), a plurality of hemispherical grooves (54) are respectively arranged at one end of the toothed grooved wheel (34) and one end of the synchronizing wheel facing the first sleeve block (35), and a plurality of round-head top posts (55) are elastically arranged in the sleeve block I (35) and the sleeve block II (53), and the round-head top column (55) is movably embedded with the semispherical groove (54), the end of the round-head top column (55) and the semispherical groove (54) are semispherical, a straight rod is fixedly arranged inside the transmission gear (36), a bracket is movably sleeved on the outer side of the straight rod and is fixedly connected with the lifting platform (3), the clamping component is installed between the rotating shaft (25) and the sliding block (32).

3. An automatic positioning and winding device for a reel of an intaglio printing press as claimed in claim 2, characterized in that: the screens subassembly includes fixed mounting in nest block one (35) with latch gear (37) of nest block two (53) rear end, two there are sliding sleeve (38) through connecting plate fixed mounting between mounting bracket (26), the lower extreme fixed mounting of sliding block (32) has slide bar (39), just slide bar (39) slide inlay in the inboard of sliding sleeve (38), the both sides bottom of slide bar (39) all is equipped with the hypotenuse ladder portion, the inside slip of sliding sleeve (38) has inlayed fixture block (43), just the lower extreme of fixture block (43) with the movable block of fixture gear (37), fixture block (43) are kept away from one side of fixture gear (37) with fixed mounting has extension spring (44) between sliding sleeve (38), nest block one (35) with inside a plurality of straight notch (40) have all been seted up of nest block two the inside of pivot (25) all has a plurality of isosceles ladder piece (41) through four (42) elastic mounting of spring, just isosceles ladder piece (41) activity inlay in the inside of straight notch (40).

4. Automatic positioning and winding device for material rolls of intaglio printing presses according to claim 3, characterized in that: elevating system (11) including rotate inlay in optical axis (28) and two screw rods (29) of elevating platform (3) bottom, optical axis (28) with screw rod (29) with the orientation of pivot (25) is unanimous, two screw rod (29) with optical axis (28) symmetric distribution, and two the screw thread of screw rod (29) is opposite, the movable block has been cup jointed to the outside screw thread of screw rod (29), just the movable block with articulated vaulting pole (30) of installing between device cover shell (2), two sets of vaulting pole (30) are crisscross and distribute, optical axis (28) with the drive is installed between the straight-bar and is taken turns to four, the inside fixed mounting of elevating platform (3) has motor (27), just the output of motor (27) with five drive belts are installed in the transmission between optical axis (28).

5. An automatic positioning and winding device for a reel of an intaglio printing press according to claim 4, characterized in that: dial commentaries on classics mechanism (14) including slidable mounting in extension rod (7) of sleeve (6) inside, just apex cone (8) rotate cup joint in the outside of extension rod (7), extension rod (7) are kept away from the one end of apex cone (8) is installed spring five (49), L type groove (50) have been seted up in the outside of sleeve (6), the fixed surface of extension rod (7) installs driving lever (51), just driving lever (51) with L type groove (50) are sliding connection, sleeve (6) and one of them install between vaulting pole (30) and touch subassembly (15).

6. An automatic positioning and winding device for a reel of an intaglio printing press according to claim 5, characterized in that: the touch component (15) comprises an extrusion block (48) fixedly mounted on the upper end face of one of the support rods (30), a sealing cylinder (45) is fixedly embedded at the rear end of the device casing (2), a piston rod (46) is elastically mounted inside the sealing cylinder (45) through a return spring, the front end of the piston rod (46) movably penetrates through the sealing cylinder (45), an arc-shaped sleeve is fixedly mounted on the outer side of the sleeve (6), a connecting pipe (47) is communicated between the rear end of the sealing cylinder (45) and the bottom of the arc-shaped sleeve, and an arc-shaped push rod (52) is slidably mounted inside the arc-shaped sleeve through a piston column.

7. Automatic positioning and winding device for material rolls of intaglio printing presses according to claim 3, characterized in that: the tooth surface of the clamping gear (37) and the lower end surface of the clamping block (43) are both arc surfaces.