CN213441636U - Offset press and adsorption paper feeding device thereof - Google Patents
Offset press and adsorption paper feeding device thereof Download PDFInfo
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- CN213441636U CN213441636U CN202022165172.8U CN202022165172U CN213441636U CN 213441636 U CN213441636 U CN 213441636U CN 202022165172 U CN202022165172 U CN 202022165172U CN 213441636 U CN213441636 U CN 213441636U
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- paper
- paper feeding
- feeding device
- mounting plate
- separating
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- 238000001179 sorption measurement Methods 0.000 title description 5
- 230000007246 mechanism Effects 0.000 claims abstract description 32
- 238000007645 offset printing Methods 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000007639 printing Methods 0.000 abstract description 22
- 238000000926 separation method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model relates to the technical field of printing equipment, and in one aspect, discloses a paper feeding device of an offset press, which comprises a mounting plate with an avoidance hole in the center; a lifting paper feeding table is arranged in the avoiding hole of the mounting plate, and a vertically arranged limiting part is fixedly connected to the mounting plate; the mounting plate is fixedly connected with paper separating mechanisms which are arranged in pairs and are positioned on two opposite sides of the avoidance hole; the paper separating mechanism is provided with paper separating comb teeth. In another aspect, an offset printing machine is disclosed, which comprises the above paper feeding device; the paper feeding device is arranged on the paper feeding side of the offset press body, and a vacuum chuck grabbing mechanism is arranged above the paper feeding device. The paper feeding device of the offset press can realize the separation of adjacent paper in grabbing by virtue of the paper separating mechanism and the paper separating comb teeth thereof, can effectively avoid carrying out a plurality of redundant paper in grabbing once, and prevents the redundant paper from overlapping and entering the offset press to cause incomplete printing or paper jamming.
Description
Technical Field
The utility model relates to a lithography apparatus technical field especially relates to an offset press and adsorption paper feeding device thereof.
Background
An offset printing press is a kind of offset printing press, in which printing images are first printed on a blanket cylinder from a printing plate and then transferred to paper by the blanket cylinder. Offset presses can be divided into sheet-fed offset presses and web-fed offset presses according to different paper feeding modes; according to the number of printing colors finished by one-time paper feeding, the method can be divided into a single-color printing machine, a double-color printing machine, a four-color printing machine and a multi-color printing machine; according to the maximum breadth of the printed paper, the printing machine can be divided into a small offset press, a six-opening printing machine, a four-opening printing machine, a split printing machine and a full-paper printing machine; in addition, there is a perfecting press that performs printing on both sides simultaneously by feeding paper once. The sheet-fed offset press is a lithographic printing press, is used for printing high-grade commercial printed matters and packaging printed matters, and is the mainstream of modern paper printing. In the operation of the offset press, paper is continuously input by the paper feeding device for printing. Existing paper feeders typically grasp and transfer paper by a vacuum suction assembly. Because the paper has static electricity or is pressed tightly, the paper is attached together, and two or more pages of paper to be printed can be taken out in one-time grabbing, so that waste is caused; in addition, the phenomenon of incomplete printing and even paper jam can exist when paper is overlapped and enters the offset press.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an offset press and adsorption paper feeding device thereof to solve the above-mentioned technical problem that the adsorption paper feeding device of offset press among the prior art probably exported many pages of paper.
In order to achieve the above object, one aspect of the present invention provides a paper feeding device for an offset printing machine, including a mounting plate having a relief hole at the center; a lifting paper feeding table is arranged in the avoiding hole of the mounting plate, and a vertically arranged limiting part is fixedly connected to the mounting plate; the mounting plate is fixedly connected with paper separating mechanisms which are arranged in pairs and are positioned on two opposite sides of the avoidance hole; the paper separating mechanism is provided with paper separating comb teeth.
Preferably, in the above paper feeding device, the avoiding hole is rectangular, and correspondingly, the lifting paper feeding table is rectangular.
Preferably, in the above paper feeding device, the avoiding hole penetrates through one side of the mounting plate and is formed as a notch.
Preferably, in the above paper feeding device, the limiting member is an angle steel, and is disposed at a corner of the avoiding hole.
Preferably, in the above paper feeding device, the mounting plate is fixedly connected with a vertically arranged limiting plate, and the limiting plate is provided with two pieces and is located on two sides of the notch.
Preferably, in the above paper feeding device, the paper separating mechanism includes a paper separating column; the upper section of the paper separating column is provided with the paper separating comb teeth, and the lower section of the paper separating column is provided with a guide inclined plane.
Preferably, in the above paper feeding device, the guide slopes of the two paper separation mechanisms are matched to form an opening expansion for guiding the paper.
According to another aspect of the present invention, there is provided an offset printing press comprising any of the above-disclosed paper feeding devices; the paper feeding device is arranged on the paper feeding side of the offset press body, and a vacuum chuck grabbing mechanism is arranged above the paper feeding device.
The utility model has the advantages that:
use the technical scheme of the utility model, the lift send the paper bench to place the paper that stacks neatly of treating the printing, and the lift platform of form advancing promotes the paper and rises, and one of them both sides chucking of piling up the paper is on dividing the paper broach. The first paper sheet on the top is grabbed, pulled out of the paper separating comb teeth and sent away; wherein, the first page of paper is forcibly pulled out due to the limitation of the paper separating comb teeth; in the drawing, the second sheet below the first sheet is not simultaneously taken out because of being restricted by the clamping of the paper separating comb teeth. The paper feeding device of the offset press can realize the separation of adjacent paper in grabbing by virtue of the paper separating mechanism and the paper separating comb teeth thereof, can effectively avoid carrying out a plurality of redundant paper in grabbing once, and prevents the redundant paper from overlapping and entering the offset press to cause incomplete printing or paper jamming.
The paper feeding device can be applied to offset presses by matching with a vacuum chuck grabbing mechanism. The offset press with the paper feeding device also has the technical effects, and the description is omitted.
Drawings
Fig. 1 is a schematic structural view (top view) of a preferred embodiment of the paper feeding device of the present invention;
FIG. 2 is a front schematic view of FIG. 1 (with a vacuum chuck gripping mechanism);
FIG. 3 is a schematic sectional view A-A of FIG. 1;
FIG. 4 is a schematic structural view (partially in section) of a preferred embodiment of the offset printing press of the present invention;
FIG. 5 is a schematic structural view of a paper separating column;
FIG. 6 is a schematic structural view of a stent;
FIG. 7 is a schematic illustration (partial) of a sheet being separated by a separation comb;
reference numerals:
the paper separating device comprises a mounting plate 1, a limiting plate 2, a lifting paper conveying table 3, avoiding holes 4, a base 5, a supporting plate 6, a paper separating column 7, a limiting part 8, a containing room 9, paper separating comb teeth 10, a guide inclined plane 11, a connecting rod 12, a sucker body 13, a vacuum sucker grabbing mechanism 14, a support 15 and a paper separating mechanism 16.
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
Please refer to the attached drawings. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
Example one
Referring to fig. 1 to 7, the present invention provides a paper feeding device for an offset printing machine, which includes a mounting plate 1 having a relief hole 4 at the center; a lifting paper feeding table 3 is arranged in the avoiding hole 4 of the mounting plate 1, and a vertically arranged limiting part 8 is fixedly connected to the mounting plate 1; the mounting plate 1 is fixedly connected with paper separating mechanisms 16, and the paper separating mechanisms 16 are arranged in pairs and are positioned at two opposite sides of the avoidance hole 4; the paper separating mechanism 16 is provided with paper separating comb teeth 10.
The avoiding hole 4 is rectangular, and correspondingly, the lifting paper feeding table 3 is rectangular in fit. The lifting paper feeding table 3 can pass through the avoidance hole 4 in the process of ascending and descending. The lifting paper feeding table 3 can be connected with a nut of a ball screw, and the lifting function is realized by the driving of the ball screw. In addition, the lifting paper feeding table 3 can be driven by a synchronous belt to realize the lifting function.
The avoiding hole 4 penetrates through one side of the mounting plate 1 and is formed as a notch. The gap is open in the direction in which the paper is transported by a vacuum chuck gripper mechanism 14 (described below). As shown in fig. 1 and 4.
The limiting part 8 is an angle steel and is arranged at the corner of the avoiding hole 4.
Limiting plate 2 of the vertical setting of fixedly connected with on the mounting panel 1, limiting plate 2 are equipped with two and are located the both sides of breach.
The limiting part 8 and the limiting plate 2 can be matched to form a containing room 9 for containing paper. The stacked sheets are placed in the accommodating room 9 under the load of the elevating sheet feeding table 3. At this time, the paper-separating comb 10 of the paper-separating mechanism 16 abuts against both sides of the top stack of paper sheets to jam and restrain the paper sheets.
The paper separating mechanism 16 comprises a paper separating column 7; the upper section of the paper separating column 7 is provided with the paper separating comb teeth 10, and the lower section of the paper separating column 7 is provided with a guide inclined plane 11. As shown in fig. 5 and 7.
In the above, the paper-separating comb 10 is mainly composed of a plurality of racks uniformly arranged at intervals, and the length direction of the racks is consistent with the length or width of the paper, and is generally horizontal. The paper separating comb 10 is used for clamping and limiting paper, preventing the paper from being taken out and playing a role in separating the paper. The plurality of racks of the paper-separating comb 10 have a concave portion therebetween, the paper can be clamped into the concave portion, and the racks play a role in isolating two adjacent pages of paper. As shown in fig. 5 and 7.
The paper separating mechanism 16 also comprises a bracket 15 for mounting the paper separating column 7; the support 15 comprises a support plate 6, a sliding groove is formed in the support plate 6, and the paper separating column 7 is arranged in the sliding groove in a sliding manner; can be used for adjusting the installation height of the paper separating column 7; the support plate 6 is provided with a long round hole, and the paper separating column 7 is correspondingly provided with a round hole for fixing the support plate and the paper separating column by penetrating a bolt. The bottom of the support plate 6 is connected with a base 5, and the base 5 is provided with a long round hole and connected with the mounting plate 1 through a bolt. The long round hole is used for reducing or increasing the distance between the two paper separating columns 7 and adjusting the degree of the paper clamping of the paper separating comb teeth 10. As shown in fig. 5 and 6.
The guide slopes 11 of the two paper separating mechanisms 16 are matched to form an opening expanding opening for guiding the paper. The paper is lifted by the lifting paper feeding table 3 and smoothly fed into the accommodating room 9 by being guided by the opening. As shown in fig. 7.
Example two
Referring to fig. 1-7, the present invention provides an offset printing machine, including the paper feeding device disclosed in the above embodiment; the paper feeding device is arranged at the paper feeding side of the offset press body, and a vacuum chuck grabbing mechanism 14 is arranged above the paper feeding device.
The vacuum chuck grabbing mechanism 14 comprises a chuck body 13, a connecting rod 12 and a driving mechanism, wherein the chuck body 13 can be provided with a plurality of parts. The driving mechanism drives the connecting rod 12 to move above the paper feeding device, and the sucker body 13 sucks and grabs paper; the driving mechanism then drives the connecting rod 12 to move back, and transports away and releases the grabbed paper; then, the connecting rod 12 moves to the upper part of the paper feeding device to perform the next round of grabbing operation, and the operation is repeated.
Since the paper feeding device disclosed in the above embodiment has the above technical effects, the offset printing machine having the paper feeding device also has the above technical effects, and details are not repeated herein.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (8)
1. A paper feeding device of an offset press is characterized by comprising an installation plate with an avoidance hole in the center; a lifting paper feeding table is arranged in the avoiding hole of the mounting plate, and a vertically arranged limiting part is fixedly connected to the mounting plate; the mounting plate is fixedly connected with paper separating mechanisms which are arranged in pairs and are positioned on two opposite sides of the avoidance hole; the paper separating mechanism is provided with paper separating comb teeth.
2. The paper feeding device of claim 1, wherein the avoiding hole is rectangular, and correspondingly, the lifting paper feeding table is rectangular.
3. The paper feeding device as claimed in claim 1 or 2, wherein the avoiding hole penetrates one side of the mounting plate and is formed as a notch.
4. The paper feeding device of claim 3, wherein the position limiting member is an angle steel disposed at a corner of the avoiding hole.
5. The paper feeding device of claim 3, wherein the mounting plate is fixedly connected with two vertically arranged limiting plates which are arranged at two sides of the gap.
6. The paper feeding device of claim 1, wherein the paper separating mechanism includes a paper separating column; the upper section of the paper separating column is provided with the paper separating comb teeth, and the lower section of the paper separating column is provided with a guide inclined plane.
7. The paper feeding device of claim 6, wherein the guide slopes of the two paper separating mechanisms are cooperatively formed as an enlarged opening for guiding the paper.
8. An offset printing machine comprising the paper feeding device according to any one of claims 1 to 7; the paper feeding device is arranged on the paper feeding side of the offset press body, and a vacuum chuck grabbing mechanism is arranged above the paper feeding device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022165172.8U CN213441636U (en) | 2020-09-27 | 2020-09-27 | Offset press and adsorption paper feeding device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022165172.8U CN213441636U (en) | 2020-09-27 | 2020-09-27 | Offset press and adsorption paper feeding device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213441636U true CN213441636U (en) | 2021-06-15 |
Family
ID=76282334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022165172.8U Expired - Fee Related CN213441636U (en) | 2020-09-27 | 2020-09-27 | Offset press and adsorption paper feeding device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213441636U (en) |
-
2020
- 2020-09-27 CN CN202022165172.8U patent/CN213441636U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210615 |
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| CF01 | Termination of patent right due to non-payment of annual fee |