Digital paperboard printing system without printing plate
Technical field
The utility model relates to a kind of digital paperboard printing system without printing plate.
Background technology
Along with the growing and continuous progress in science and technology of press, people are also more and more higher to the specification requirement of printing machinery.Do not have version digital paperboard printing machine because of not making a plate, so cost is relatively low, can print at any time, operating process is short, the efficient height.But, an existing nothing version digital paperboard printing equipment also exists apparent in view shortcoming: print speed printing speed is not high: a nothing version digital paperboard printing machine paper feed system of the prior art mostly is following paper feed pattern, play the paper feeding mode that pushes away cardboard after promptly adopting, one of bottom in the one stacker plate pushed in the equipment line up, entering print area one by one prints, because equipment will be taken into account the cardboard of big specification, so the transmission approach is generally longer, to adapt to the arrangement of big specification cardboard, this equipment is if during printing small dimension cardboard, will in transport process, stop over, thereby can't catch up with the print speed printing speed of printing spray nozzle, cause print speed printing speed not high; Simultaneously, because the transmission approach is longer, make that also the size of equipment is bigger.In addition, the existing cardboard that does not have version digital paperboard printing equipment transmits and mostly adopts rubber roll to transmit, its drive system is comparatively complicated, the production maintenance cost is higher, and after using a period of time, sticking being covered with dust on the rubber roll will cause its frictional force to descend, influence the degree of accuracy that cardboard transmits, thereby printing produces quality problems.
The utility model content
The purpose of this utility model is to provide the digital paperboard printing system without printing plate that a kind of print speed printing speed height, cardboard transmit accurately, equipment size is little.
The technical scheme that realizes the utility model purpose is: a kind of digital paperboard printing system without printing plate, have frame, and frame is provided with printing head; Frame is provided with paper feeder, paper separating device, paper holder, conveyer and hold down gag, described paper feeder is arranged on frame front, have and put the paper platform and put the paper platform relative to the vertical up and down platform drive unit that moves of frame with driving, put paper platform top and be provided with sucker and drive the sucker drive unit that the relative frame of sucker moves forward and backward, sucker is connected on the sucker drive unit by the sucker cylinder; Paper separating device is arranged on puts paper platform rear edge, has the pilot pin cylinder that spacing cylinder that cardboard limiting plate and control cardboard limiting plate move forward and backward and the cardboard pilot pin that is arranged on control cardboard limiting plate below and control cardboard pilot pin move forward and backward, connect by regulating bolt between pilot pin cylinder and the spacing cylinder, paper separating device has above-below direction and is slidingly arranged in slide block on the frame, slide block is connected with limit switch, and above-mentioned spacing cylinder is fixedly connected on the slide block; Paper holder is arranged on the printing head front portion; Conveyer has conveyer belt, and conveyer belt extends to the rear portion by central rack, is arranged with passage on the conveyer belt, and the conveyer belt bottom is provided with negative pressure box, the negative pressure box upper end open, and above-mentioned conveyer belt covers negative pressure box upper end open place; Hold down gag is arranged on around the printing head, has the preceding pressure roller that is arranged on the printing head front portion, is arranged on the back pressure roller at printing head rear portion and the spring pressuring plate that is arranged on the printing head left and right sides; Also be provided with induced-draught fan on the frame, induced-draught fan is connected with the sucker of above-mentioned paper feeder and the negative pressure box of conveyer by tracheae.
The frame front of above-mentioned digital paperboard printing system without printing plate is provided with column, the front upper fore-and-aft direction be provided with radially slide bar with the parallel tooth bar of slide bar radially, the platform drive unit of described paper feeder has the lifting motor, upper box and lower box, promoting motor is fixedly installed on the frame, its output shaft is provided with drive sprocket, upper box is fixedly installed on the column upper end, be provided with duplicate sprocket in the upper box, the lower box above-below direction is slidingly arranged on the column, be provided with sprocket wheel in the lower box, between drive sprocket and the duplicate sprocket, be equipped with the lifting chain between duplicate sprocket and the sprocket wheel; Described sucker drive unit is slidingly arranged in radially on the slide bar, the sucker drive unit is provided with and the tooth bar meshed gears, sucker cylinder fixedly connected on the sucker drive unit connects sucker by suction cup carrier, and described sucker has 2 to 8, is equipped with passage on each sucker wall.
Also be provided with punch block between the cardboard pilot pin of the paper separating device of above-mentioned digital paperboard printing system without printing plate and the pilot pin cylinder, the cardboard pilot pin has 2 to 4, horizontally on punch block, and removable connection the between the push rod of punch block and above-mentioned pilot pin cylinder.
The paper holder of above-mentioned digital paperboard printing system without printing plate has horizontal gripper cylinder and vertical gripper cylinder, laterally on the fixedly connected left frame of gripper cylinder level, its push rod front end connects horizontal grip block, described vertical gripper cylinder is fixedly connected on the frame of horizontal grip block top vertically downward, and its push rod front end connects vertical grip block; Described horizontal grip block can be moved to the left the below of vertical grip block, and vertical grip block can move down with horizontal grip block and offset; Vertical gripper cylinder left side is provided with the cardboard sniffer.
The conveyer belt of the conveyer of above-mentioned digital paperboard printing system without printing plate is connected with the adjusting that is in conplane driven roller, driven voller and is arranged on frame lower and rolls, described negative pressure box is arranged between driven roller and the driven voller, negative pressure box top is provided with the backing roll that many parallel interval are arranged, and backing roll contacts in same plane and with conveyer belt with the negative pressure box upper end surface.
The passage cross sectional shape of arranging on the conveyer belt of above-mentioned digital paperboard printing system without printing plate is "T"-shaped.
Be provided with the broadwise slide bar that is fixed on the frame between the preceding pressure roller of the hold down gag of above-mentioned digital paperboard printing system without printing plate and the back pressure roller, the broadwise slide bar is parallel with preceding pressure roller, the broadwise slide bar is provided with two spring pressuring plates, spring pressuring plate one end is arranged on the slide bar, and the other end vertically points to the back pressure roller and contacts with the conveyer belt of conveyer.
Two spring pressuring plates of above-mentioned digital paperboard printing system without printing plate all are slidingly arranged on the broadwise slide bar.
The broadwise slide bar cross sectional shape of above-mentioned digital paperboard printing system without printing plate is a profile, two spring pressuring plates all have connecting portion and compressed part, connecting portion is socketed on the broadwise slide bar, and connecting portion cross sectional shape and broadwise slide bar cross sectional shape match, and the compressed part bottom surface contacts with the conveyer belt of conveyer.
The sheet compressed part bottom surface that two springs of above-mentioned digital paperboard printing system without printing plate are pressed is a smooth flat.
The utlity model has following characteristics: (1) paper feeder of the present utility model adopts sucker by the top paper feeding, can be because of problems affect paper feeding operations such as cardboard warpages, the sucker wall is provided with passage, when induced-draught fan is worked, bleed from tracheae by induced-draught fan on the one hand in the sucker cavity and form negative pressure, on the other hand by the passage pressure release, because induced-draught fan is bled greater than pressure release, form negative pressure in the sucker cavity, cardboard to be transmitted is picked up, be delivered to the precalculated position, then after induced-draught fan quits work, the very fast pressure release of passage, make cardboard and sucker break away from, need not other auxiliary equipment and assembly, simplicity of design is ingenious, can effectively improve the speed of inhaling paper and putting paper, working stability; (2) paper separating device of the present utility model inserts in the corrugation of corrugated board by cylinder control cardboard pilot pin, with second corrugated board location, guaranteed the paper feeding operation stable and location accurately, distance between cardboard pilot pin and the cardboard limit plate can be adjusted by regulating bolt, can satisfy the cardboard needs of different-thickness, applicability is strong; (3) paper holder of the present utility model has horizontal grip block and vertical grip block, supporting with paper feeder, the cardboard front end that sucker can be sent is clamped, make up and down two-layer arrangement of cardboard to be printed, can significantly improve the cardboard transmission efficiency, can effectively shorten the size of printing equipment again, reduce occupation area of equipment, design ingenious; (4) conveyer belt of conveyer of the present utility model is provided with passage, conveyer belt has the negative pressure box that is communicated with induced-draught fan, when work, the cardboard on the conveyer belt can be adsorbed on the conveyer belt, negative pressure box top is provided with spaced backing roll simultaneously, energy effective support conveyer belt, therefore make it can not be subjected to suction function flexural deformation, transmit accurate positioning, speed is fast, the functional reliability height; (5) pressure roller and the spring pressuring plate that is slidingly arranged in the printing head left and right sides before and after hold down gag of the present utility model has, cardboard can be pressed on the conveyer belt, because two spring pressuring plate compressed part bottom surfaces are smooth flat, its resistance is very little, can not influence the normal reach of cardboard, and the resilient characteristic that spring pressuring plate has can guarantee to be applicable to the cardboard of different-thickness, has advantages of high practicability.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, below the specific embodiment and in conjunction with the accompanying drawings of basis, the utility model is described in further detail, wherein
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a paper feeder structural representation of the present utility model;
Fig. 3 is a paper feeder sucker cutaway view of the present utility model;
Fig. 4 is a paper separating device structural representation of the present utility model;
Fig. 5 is a paper holder structural representation of the present utility model;
Fig. 6 is a conveyer structural representation of the present utility model;
Fig. 7 is a conveyor belt cutaway view of the present utility model;
Fig. 8 is a hold down gag cutaway view of the present utility model;
Fig. 9 is a hold down gag structural representation of the present utility model.
The specific embodiment
See Fig. 1, the utlity model has frame 9, frame 9 is provided with printing head 8; Frame 9 is provided with paper feeder 1, paper separating device 2, paper holder 3, conveyer 4 and hold down gag 5.
See Fig. 2 and Fig. 3, paper feeder 1 is arranged on frame 9 front portions, have and put paper platform 11 and put paper platform 11 relative to the vertical up and down platform drive unit 12 that moves of frame 9 with driving, put paper platform 11 tops and be provided with sucker 13 and drive the sucker drive unit 14 that sucker 13 relative frames 9 move forward and backward, sucker 13 is connected on the sucker drive unit 14 by sucker cylinder 15; Frame 9 front portions are provided with column 91, the front upper fore-and-aft direction is provided with slide bar 92 radially and the tooth bar 93 parallel with slide bar radially 92, the platform drive unit 12 of described paper feeder 1 has the motor 121 of lifting, upper box 122 and lower box 123, promoting motor 121 is fixedly installed on the frame 9, its output shaft is provided with drive sprocket 121-1, upper box 122 is fixedly installed on column 91 upper ends, be provided with duplicate sprocket 122-1 in the upper box 122, lower box 123 above-below directions are slidingly arranged on the column 91, be provided with sprocket wheel 123-1 in the lower box 123, between drive sprocket 121-1 and the duplicate sprocket 122-1, be equipped with between duplicate sprocket 122-1 and the sprocket wheel 123-1 and promote chain 124; Described sucker drive unit 14 is slidingly arranged in radially on the slide bar 92, sucker drive unit 14 is provided with and tooth bar 93 meshed gears 14-1, sucker cylinder 15 fixedly connected on the sucker drive unit 14 connects sucker 13 by suction cup carrier 16, described sucker 13 has 2 to 8, is equipped with passage 13-1 on each sucker wall.
See Fig. 4, paper separating device 2 is arranged on puts paper platform 11 rearward edges places, has the pilot pin cylinder 24 that spacing cylinder 22 that cardboard limiting plate 21 and control cardboard limiting plate 21 move forward and backward and the cardboard pilot pin 23 that is arranged on control cardboard limiting plate 21 belows and control cardboard pilot pin 23 move forward and backward, connect by regulating bolt 25 between pilot pin cylinder 24 and the spacing cylinder 22, paper separating device 2 has above-below direction and is slidingly arranged in slide block 26 on the frame 1, slide block 26 is connected with limit switch 27, and above-mentioned spacing cylinder 22 is fixedly connected on the slide block 26; Also be provided with punch block 28 between the cardboard pilot pin 23 of paper separating device 2 and the pilot pin cylinder 24, cardboard pilot pin 23 has 2 to 4, horizontally on punch block 28, and removable connection the between the push rod of punch block 28 and above-mentioned pilot pin cylinder 24.
See Fig. 5, paper holder 3 is arranged on printing head 8 front portions, have horizontal gripper cylinder 31 and vertical gripper cylinder 33, laterally on the fixedly connected left frame 9 of gripper cylinder 31 levels, its push rod front end connects horizontal grip block 32, described vertical gripper cylinder 33 is fixedly connected on the frame 9 of horizontal grip block 32 tops vertically downward, and its push rod front end connects vertical grip block 34; Described horizontal grip block 31 can be moved to the left the below of vertical grip block 34, and vertical grip block 34 can move down with horizontal grip block 32 and offset; Vertical gripper cylinder 33 left sides are provided with cardboard sniffer 35.
See Fig. 6 and Fig. 7, conveyer 4 has conveyer belt 41, conveyer belt 41 extends to the rear portion by frame 1 middle part, be arranged with passage 41-1 on the conveyer belt 41, passage 41-1 cross sectional shape is "T"-shaped, conveyer belt 41 bottoms are provided with negative pressure box 42, negative pressure box 42 upper end open, and above-mentioned conveyer belt 41 covers negative pressure box 42 upper end open places; Conveyer belt 41 is connected with the adjusting that is in conplane driven roller 43, driven voller 44 and is arranged on frame 9 bottoms and rolls 45, described negative pressure box 42 is arranged between driven roller 43 and the driven voller 44, negative pressure box 42 tops are provided with the backing roll 42-1 that many parallel interval are arranged, and backing roll 42-1 contacts in same plane and with conveyer belt 41 with negative pressure box 42 upper end surfaces.
See Fig. 8 and Fig. 9, hold down gag 5 is arranged on around the printing head 8, has the preceding pressure roller 51 that is arranged on printing head 8 front portions, the spring pressuring plate 53 that is arranged on the back pressure roller 52 at printing head 8 rear portions and is arranged on printing head 8 left and right sides; Be provided with the broadwise slide bar 94 that is fixed on the frame 9 between preceding pressure roller 51 and the back pressure roller 52, broadwise slide bar 94 is parallel with preceding pressure roller 51, slide on the broadwise slide bar 94 and be provided with two spring pressuring plates 53, spring pressuring plate 53 1 ends are arranged on the slide bar 94, and the other end vertically points to back pressure roller 52 and contacts with the conveyer belt 41 of conveyer 4; Broadwise slide bar 94 cross sectional shapes are profile, two spring pressuring plates 53 all have connecting portion 531 and compressed part 532, connecting portion 531 is socketed on the broadwise slide bar 94, and connecting portion 531 cross sectional shapes and broadwise slide bar 94 cross sectional shapes match, and sheet compressed part 532 bottom surfaces of two springs pressure 53 are smooth flat.
Still see Fig. 1, also be provided with induced-draught fan 6 on the frame, induced-draught fan 6 is connected with the sucker 13 of above-mentioned paper feeder 1 and the negative pressure box 42 of conveyer 4 by tracheae 7.
Obviously, the foregoing description of the present utility model only is for this novel example clearly is described, and is not to be a qualification to this novel embodiment.For those of ordinary skill in the field; can also make other changes in different forms on the basis of the above description; here need not also can't give all embodiments exhaustive, and these belong to the conspicuous variation that this novel spirit extends out or change and still are among the novel protection domain of basis.