Slitting multilayer composite mechanism of flexible printing machine
Technical Field
The invention relates to the technical field of printing machines, in particular to a slitting multilayer composite mechanism of a flexible printing machine.
Background
Flexography is one of four printing modes, and has the advantages of rich printed product layers, bright colors, good visual effect, wide range of printing materials, high production efficiency and the like. In order to further improve the production efficiency, technicians cut the multilayer compound mechanism in series on the printing machine to perform online cutting and laminating compound.
Published patent CN207579330U discloses a cut multilayer combined mechanism, including setting up cutting device, shifter and the set composite in the frame, cut the device including being used for vertically cutting the complex branch cutter and cutting the bottom roll, the shifter is including the upset roller that is used for the aversion, the set composite links up with the shifter including compound roller, cuts the device and links up mutually with the shifter, cuts the device and links up mutually with the set composite, the shifter links up mutually with the set composite. The slitting multilayer composite mechanism can perform slitting and laminating composite, and is connected in series in a printing machine for performing online slitting and laminating composite, so that the slitting multilayer composite mechanism is more convenient and has higher efficiency; and provides a technical basis for cutting, breaking and stacking on line. However, the slitting knife is a consumable piece and needs to be replaced regularly, and in the replacement process, the slitting knife is clamped in a hand wheel rotating mode, so that for people with small strength, the operation is very labor-consuming, the clamping of the slitting knife is not tight, the normal work of the slitting multilayer compound mechanism is affected, and the slitting quality of a printed product is affected seriously.
In conclusion, how to easily replace the cutting knife is a problem which needs to be solved by the technical personnel in the field.
Disclosure of Invention
The invention aims to provide a slitting multilayer composite mechanism of a flexible printing machine, which solves the problems that the slitting knife is clamped by a hand wheel rotating mode in the existing mechanism, the operation is very labor-consuming for people with small strength, and the clamping of the slitting knife is not tight easily.
In order to solve the technical problems, the invention provides the following technical scheme: a multilayer combined mechanism of cutting of flexible printing machine, includes cuts the foundation roll and divides the cutter, still includes first semi-axis, second semi-axis, first blade holder, second blade holder and locking device, first semi-axis with the second semi-axis all rotates and sets up in the frame, and first semi-axis with the coaxial interval of second semi-axis sets up, the fixed cover of first blade holder is established on the first semi-axis, the activity cover of second blade holder is established on the second semi-axis, locking device includes push rod, slider, slide, depression bar and lockpin, the one end pin joint of push rod is in on the second blade holder, the other end pin joint of push rod is in on the slider, the slider slides and sets up on the slide, the slide rigid coupling is in on the second semi-axis, the depression bar rotates and sets up on the second semi-axis, the short arm of depression bar with slider swing joint, the lock pin can penetrate through the insertion hole in the long arm of the pressure lever and be inserted into the clamping hole in the second half shaft, so that the dividing cutter is clamped between the first cutter holder and the second cutter holder.
Furthermore, a connecting rod part is connected to the sliding part, a sliding column is connected to the free end of the connecting rod part, and the sliding column is slidably arranged in a long circular hole in the short arm of the pressing rod.
Furthermore, a first elastic pressing piece is embedded on one side, close to the second tool apron, of the first tool apron, a second elastic pressing piece is embedded on one side, close to the first tool apron, of the second tool apron, and the cutting knife is clamped between the first elastic pressing piece and the second elastic pressing piece.
Furthermore, the first elastic pressing piece is embedded in the first annular groove of the first tool apron, the first annular protrusion is arranged on the periphery of the first elastic pressing piece, the first annular groove matched with the first annular protrusion is formed in the inner peripheral wall of the first annular groove, the second elastic pressing piece is embedded in the second annular groove of the second tool apron, the second annular protrusion is arranged on the periphery of the second elastic pressing piece, and the second annular groove matched with the second annular protrusion is formed in the inner peripheral wall of the second annular groove.
Furthermore, a plurality of first protruding columns are circumferentially arranged on the end face of one side, close to the second tool apron, of the first tool apron at intervals, a plurality of second protruding columns are circumferentially arranged on the end face of one side, close to the first tool apron, of the second tool apron at intervals, and positioning holes matched with the first protruding columns and the second protruding columns are formed in the dividing cutter.
Furthermore, a sliding hole matched with the second half shaft is formed in the second cutter holder, and after the bisection cutter is installed, the first half shaft extends into the sliding hole.
Furthermore, a connecting plate is connected to the long arm of the pressing rod, and the insertion hole is formed in the connecting plate.
Furthermore, the lockpin has disc portion, big footpath pole portion and round pin pole portion that connect gradually, disc portion supports and leans on the connecting plate, big footpath pole portion wears to establish in the jack, round pin pole portion inserts in the jack, round pin pole portion is kept away from connect on the terminal surface of disc portion and is equipped with a plurality of card leg, the free end of card leg passes in proper order the card hole with heavy groove on the second semi-axis extends outwards, protruding the keeping off of card on the card leg is in the interior terminal surface of heavy groove.
Further, the sliding piece is arranged in a T-shaped sliding groove in a sliding manner on the sliding seat.
Further, the locking device also comprises an extension rod which is detachably connected to the long arm end of the pressure rod.
According to the technical scheme, the invention has the following beneficial effects:
according to the invention, the locking device effectively reduces the external force required to be applied by an operator when the slitting knife is clamped by adopting a lever principle, so that the clamping operation of a person with small force is facilitated, the clamping effect of the slitting knife is reliable, and the dismounting operation of the slitting knife is convenient.
The invention is described in further detail below with reference to the figures and the detailed description.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of another state of the present invention.
Fig. 3 is a partial structural schematic diagram of the present invention.
Fig. 4 is a schematic view of another partial structure of the present invention.
Fig. 5 is a schematic sectional view at a-a in fig. 3.
Fig. 6 is a schematic view of the extension pole of the present invention.
Description of reference numerals: the cutting device comprises a bottom slitting roller 1, a cutting knife 2, a positioning hole 21, a first half shaft 3, a second half shaft 4, a clamping hole 41, a sinking groove 42, a first knife holder 5, a first annular groove 51, a first annular clamping groove 52, a first convex column 53, a second knife holder 6, a second annular groove 61, a second annular clamping groove 62, a second convex column 63, a sliding hole 64, a first elastic pressing sheet 7, a first annular protrusion 71, a first through hole 72, a second elastic pressing sheet 8, a second annular protrusion 81, a second through hole 82, a locking device 9, a push rod 91, a sliding piece 92, a connecting rod part 921, a sliding column 922, a sliding seat 93, a T-shaped sliding groove 931, a stop block 932, a compression rod 94, a long circular hole 941, a connecting plate 942, a jack 9421, a threaded hole 943, a lock pin 95, a circular disk part 951, a pin rod part 952, a clamping leg 953, a clamping protrusion 9531, a pull ring part 954, a large.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
The invention is further explained with reference to fig. 1 to 6, and the slitting multi-layer compound mechanism of the flexible printing press shown in fig. 1 and 3 comprises a slitting device, a shifting device and a compound device which are arranged on a frame, wherein the slitting device comprises a slitting bottom roller 1, a slitting cutter 2, a first half shaft 3, a second half shaft 4, a first cutter holder 5, a second cutter holder 6 and a locking device 9, the first half shaft 3 and the second half shaft 4 are both rotatably arranged on the frame through bearings, the first half shaft 3 and the second half shaft 4 are coaxially arranged at intervals, the first cutter holder 5 is fixedly sleeved on the first half shaft 3 through welding, the second cutter holder 6 is provided with a sliding hole 64 matched with the second half shaft 4, the second cutter holder 6 is movably sleeved on the second half shaft 4 through the sliding hole 64, the locking device 9 comprises a push rod 91, a sliding piece 92, a sliding seat 93, a compression rod 94 and a lock pin 95, one end of the push rod 91 is pivoted on the second tool holder 6, the other end of the push rod 91 is pivoted on the sliding member 92, the sliding member 92 is slidably disposed in a T-shaped sliding groove 931 on the sliding base 93, a stop block 932 is disposed at an open end of the T-shaped sliding groove 931, a connecting rod portion 921 is integrally connected to the sliding member 92, a sliding column 922 is integrally connected to a free end of the connecting rod portion 921, the sliding base 93 is fixedly connected to the second half shaft 4, the press rod 94 is rotatably disposed on the second half shaft 4 through a support 96, a long circular hole 941 matched with the sliding column 922 is disposed on a short arm of the press rod 94, the sliding column 922 is slidably disposed in the long circular hole 941, a connecting plate 942 is connected to a long arm of the press rod 94, a plug hole 9421 is disposed on the connecting plate 942, and the lock pin 95 can be inserted.
As shown in fig. 1 and 4, an annular groove one 51 is disposed on a side of the first tool apron 5 adjacent to the second tool apron 6, a first elastic pressing piece 7 in an annular shape is embedded in the annular groove one 51, a through hole one 72 is disposed on the first elastic pressing piece 7, through the first through hole 72, the first elastic pressing piece 7 is sleeved on the first half shaft 3, the first elastic pressing piece 7 is provided with a first annular protrusion 71 in the periphery, a first annular clamping groove 52 matched with the first annular protrusion 71 is formed in the inner peripheral wall of the first annular groove 51, a second annular groove 61 is formed in one side, close to the first cutter holder 5, of the second cutter holder 6, the second annular groove 61 is embedded into the second annular groove 8, the second elastic pressing piece 8 is provided with a second through hole 82, a second annular protrusion 81 is formed in the periphery of the second elastic pressing piece 8, and a second annular clamping groove 62 matched with the second annular protrusion 81 is formed in the inner peripheral wall of the second annular groove 61.
As shown in fig. 1 and 4, a plurality of first protruding columns 53 are circumferentially arranged on the end surface of one side of the first tool apron 5, which is close to the second tool apron 6, at intervals, a plurality of second protruding columns 63 are circumferentially arranged on the end surface of one side of the second tool apron 6, which is close to the first tool apron 5, a plurality of positioning holes 21 are formed in the slitting cutter 2, after the slitting cutter 2 is clamped, the first protruding columns 53 on the first tool apron 5 are inserted into one ends of the positioning holes 21, and the second protruding columns 63 on the second tool apron 6 are inserted into the other ends of the positioning holes 21.
As shown in fig. 1, 3 and 5, the lock pin 95 includes a disc portion 951, a large-diameter rod portion 955 and a pin rod portion 952, which are connected in sequence, a pull ring portion 954 is connected to a free end of the disc portion 951, a pair of symmetrically arranged locking legs 953 is connected to an end surface of the pin rod portion 952 away from the disc portion 951, when the locking device 9 is in a locked state, the disc portion 951 abuts against a connecting plate 942, the pin rod portion 952 is inserted into the insertion hole 9421, the pin rod portion 952 is inserted into the locking hole 41, the free end of the locking leg 953 sequentially passes through the locking hole 41 and the sunken groove 42 of the second half shaft 4 to extend outward, the locking protrusion 9531 of the locking leg 953 abuts against an inner end surface of the sunken groove 42, so that the lock pin 95 can be reliably inserted into the second half shaft 4, and when the lock pin is removed, after the free ends of the pair of the locking legs 953 are pinched by one hand to approach each other, the pull ring portion 954 is pulled outward by the other hand, so that the lock pin 95 is, The disassembling process does not need to use tools, and the operation is convenient.
As shown in fig. 1, 3 and 6, the locking device 9 further comprises an extension rod 97, and a threaded rod portion 971 of the extension rod 97 is detachably connected in a threaded hole 943 on the long arm end of the compression rod 94, so that the arrangement is such that, when in use, a user can increase the length of the compression rod 94 through the extension rod 97, and then the user can save more labor when operating the compression rod, and when not in use, the extension rod 97 is detached, so that the occupied space can be reduced.
As shown in fig. 1 and 2, when a user needs to replace the slitting knife 2, the lock pin 95 is firstly pulled out from the clamping hole 41 and the insertion hole 9421, then the long arm end of the press rod 94 is lifted upwards, the short arm of the press rod 94 pulls the second knife holder 6 away from the first knife holder 5 through the sliding piece 92 and the push rod 91, then the old slitting knife 2 is detached from the first half shaft 3 and replaced with a new slitting knife 2, then the long arm end of the press rod 94 is pressed downwards, the short arm of the press rod 94 pushes the second knife holder 6 to approach the first knife holder 5 through the sliding piece 92 and the push rod 91, during the approach of the second knife holder 6 to the first knife holder 5, the first half shaft 3 passes through the through hole two 82 of the annular protrusion two 81 and extends into the sliding hole 64, and at the same time, the first knife holder 5 is slightly adjusted to align the boss two 63 on the second knife holder 6 with the positioning hole 21 on the slitting knife 2, and when the second elastic pressing piece 8 abuts against, the long arm end of the press rod 94 is pressed forcibly, the first elastic pressing piece 7 and the second elastic pressing piece 8 are extruded to deform, and finally the lock pin 95 is inserted into the clamping hole 41 through the insertion hole 9421 again, so that the cutting knife 2 can be reliably clamped between the first elastic pressing piece 7 and the second elastic pressing piece 8.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.