CN110901224B - Printing machine and fault gripper searching device and method thereof - Google Patents
Printing machine and fault gripper searching device and method thereof Download PDFInfo
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- CN110901224B CN110901224B CN201911185530.7A CN201911185530A CN110901224B CN 110901224 B CN110901224 B CN 110901224B CN 201911185530 A CN201911185530 A CN 201911185530A CN 110901224 B CN110901224 B CN 110901224B
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- gripper assembly
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F21/00—Devices for conveying sheets through printing apparatus or machines
- B41F21/04—Grippers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/02—Arrangements of indicating devices, e.g. counters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
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- General Physics & Mathematics (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
Abstract
本申请涉及一种故障叼牙查找装置，其包括光电感应块、光电探头及在线清数系统。所述光电感应块能随参考叼牙组件进行移动。所述光电探头用于当感测到所述参考叼牙组件经过时，发出光电感应信号。所述在线清数系统用于记录所述光电感应信号的发出时间及每个叼牙组件固定每个承印物的时间，通过比较时间以确定与故障叼牙组件最接近的参考叼牙组件，并以所述参考叼牙组件为参考点来找出所述故障叼牙组件，因此能快速准确地找到故障叼牙组件，有效提高生产效率。本申请还提供一种印刷机及其故障叼牙查找方法。
The present application relates to a fault gripper finding device, which includes a photoelectric sensing block, a photoelectric probe and an online counting system. The photoelectric sensing block can move with the reference gripper assembly. The photoelectric probe is used for sending out a photoelectric sensing signal when sensing the passing of the reference gripper assembly. The online counting system is used for recording the sending time of the photoelectric induction signal and the time when each gripper assembly fixes each substrate, and by comparing the time to determine the reference gripper assembly that is closest to the faulty gripper assembly, and The faulty gripper assembly is found by taking the reference gripper assembly as a reference point, so that the faulty gripper assembly can be found quickly and accurately, and the production efficiency is effectively improved. The present application also provides a printing press and a method for finding a faulty gripper thereof.
Description
Technical Field
The invention relates to the technical field of printing machines, in particular to a printing machine and a fault gripper searching device and method thereof.
Background
Modern printing presses typically comprise a printing section and a delivery section, from which the delivery section is typically made up of sets of grippers, such as: model 1 has 18 grippers and model 2 has 17 grippers, but during printing, it is often found that there are abnormalities in the opening, closing or gripping force of a certain set of grippers. This requires shutting down the machine for group scrutiny. For example, a certain type 2 machine delivery chain path has 17 groups of grippers, if regular delivery abnormality is found, the machine needs to be stopped, the 17 groups of grippers are checked one by one, time and labor are wasted, targets are not clear, a problem gripper cannot be found out and adjusted well in the process, and production efficiency is low.
Disclosure of Invention
Therefore, the printing machine and the fault gripper searching device and method thereof are needed to solve the technical problems, the fault gripper can be quickly and accurately found, and the production efficiency is effectively improved.
In a first aspect, an embodiment of the present application provides a fault gripper searching device, which includes a photoelectric sensing block, a photoelectric probe, and an online counting system. The photoelectric sensing block can move along with the reference gripper assembly. The photoelectric probe is used for sending out a photoelectric sensing signal when sensing that the reference gripper assembly passes through. The online counting system is used for recording the sending time of the photoelectric sensing signal and the time of fixing each printing stock by each gripper assembly, determining the reference gripper assembly closest to the fault gripper assembly by comparing the time, and finding out the fault gripper assembly by taking the reference gripper assembly as a reference point.
In a second aspect, an embodiment of the present application provides a faulty gripper finding method, which includes the following steps: providing a photoelectric sensing block moving along with the reference gripper assembly; providing a photoelectric probe capable of sending out a photoelectric sensing signal when the reference gripper assembly is sensed to pass by; and recording the sending time of the photoelectric sensing signal and the time of fixing each printing stock by each gripper assembly, determining a reference gripper assembly closest to the fault gripper assembly by comparing the time, and finding out the fault gripper assembly by taking the reference gripper assembly as a reference point.
In a third aspect, embodiments of the present application provide a printing machine, which includes the faulty gripper finding device described above.
Compared with the prior art, the printing machine and the fault gripper searching device and method thereof can quickly and accurately find the fault gripper assembly, and effectively improve the production efficiency.
Drawings
Fig. 1 and 2 are schematic structural views of a printing press according to an embodiment;
fig. 3 and fig. 4 are flowcharts of a faulty gripper finding method according to another embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
As shown in fig. 1 and 2, a printing machine 100 according to an embodiment of the present application includes a printing portion 101, a sheet delivery portion 102, a chain path 103, a plurality of gripper assemblies 10, and a faulty gripper finding device 20.
The link 103 connects the printing unit 101 and the delivery unit 102.
A plurality of gripper assemblies 10 are sequentially arranged on the chain path in sequence and can move along with the chain path 103. Gripper assembly 10 is used to grip and hold a substrate (e.g., a sheet) to ensure that the substrate does not move as the printing cylinder rotates.
Each gripper assembly 10 comprises a gripper bar 11, a gripper pad 12, a release roller 13, a gripper bar 14 and a gripper 15. The tooth row seat 11 is fixed on the chain channel 103. The bite block 12 is fixed to the tooth row seat 11. The gripper opening roller 13 is rotatably arranged on the gripper bar seat 11 and is used for driving the gripper seat 14 to reciprocate, so that the gripper 15 is controlled to be pressed on the gripper pad 12 or to leave the gripper pad 12, and the gripper 15 is opened or closed.
The fault gripper searching device 20 is used for searching a fault gripper assembly and comprises a photoelectric sensing block 21, a photoelectric probe 22 and an online counting system 23.
The photoelectric sensing block 21 can move along with one of the gripper assemblies 10, and the selected gripper assembly 10 is set as a reference gripper assembly. In the present embodiment, the photo-sensor block 21 is disposed at a position on or near the reference gripper assembly 10a (e.g., on the gripper bar seat 11 of the reference gripper assembly 10a or on the corresponding outer side surface of the chain path).
The photo probe 22 is capable of emitting a photo-induced signal (e.g., a high level signal) upon sensing the passage of the reference gripper assembly 10 a. In this embodiment, the photoelectric probe 22 is disposed on the printing machine 100 and located near a position where the photoelectric sensing block 21 must pass through.
The online counting system 23 is used for recording the sending time of the photoelectric sensing signal and the time of fixing each printing stock by each gripper assembly 10, determining a reference gripper assembly 10a closest to the fault gripper assembly 10b by comparing the times, and finding out the fault gripper assembly 10b by taking the reference gripper assembly 10a as a reference point.
Specifically, the online counting system 23 is configured to identify a unique identification code (such as a large sheet number) printed on each printing material (such as a large sheet product) by the printing machine, generate a unique check code when each printing material passes through one gripper assembly 10, and record a corresponding relationship between the check code of the gripper assembly 10, the time when the gripper assembly passes through each printing material, and the corresponding identification code.
When a certain gripper assembly fails (namely, a faulty gripper assembly occurs), a certain abnormal printing stock (such as abnormal paper delivery) is generated, the online counting system 23 is further used for searching the unique check code a of the faulty gripper assembly corresponding to the identification code of the abnormal printing stock, then searching the sending time of the photoelectric sensing signal and the time of fixing the abnormal printing stock by the faulty gripper assembly 10B, and calculating the distance between the unique check code a of the faulty gripper assembly 10B and the unique check code B of the reference gripper assembly 10a by comparing the time to find the unique check code B of the reference gripper assembly closest to the faulty gripper assembly so as to determine the distance between the faulty gripper assembly 10B and the reference gripper assembly 10a, thereby finding the faulty gripper assembly 10B.
Further, in this embodiment, the in-line counting system 23 is further configured to sequentially number the reference gripper assembly 10a and the other gripper assemblies 10 in a position order. For example, the reference gripper assembly 10a is numbered as 1, and the other gripper assemblies are sequentially numbered as 2, 3, 4 … … along the moving direction of the gripper assembly 10. The online counting system 23 is further used for combining the number of the reference gripper assembly 10a closest to the fault gripper assembly 10b according to the distance between the fault gripper assembly 10b and the reference gripper assembly 10a, so as to determine the number of the fault gripper assembly 10b and find out the fault gripper assembly 10b quickly and accurately.
As shown in fig. 3, a faulty gripper finding method provided in an embodiment of the present application includes the following steps:
s1: a photo-electric sensing block is provided for movement with the reference gripper assembly. Specifically, the photoelectric sensing block is arranged on a reference gripper assembly or a position near the reference gripper assembly, such as a gripper row seat of the reference gripper assembly or a corresponding outer side surface of the chain path.
S2: an opto-electronic probe is provided which emits an opto-electronic sensing signal (e.g., a high level signal) when the reference gripper assembly is sensed to pass by. Specifically, the photoelectric probe can be installed near a necessary position of the photoelectric sensing block on the printing machine.
S3: recording the sending time of the photoelectric sensing signal and the time of fixing each printing stock by each gripper assembly, determining a reference gripper assembly closest to the fault gripper assembly by comparing the time, and finding out the fault gripper assembly by taking the reference gripper assembly as a reference point.
Specifically, as shown in fig. 4, step S3 further includes the following steps:
s31: the unique identification code sprayed and printed on each printed material is identified, a unique check code is generated when each printed material passes through one gripper assembly, and the corresponding relation between the unique check code of the gripper assembly and the corresponding unique identification code is recorded.
S32: and searching the unique check code A of the fault gripper assembly corresponding to the identification code of the abnormal printing stock.
S33: and searching the sending time of the photoelectric sensing signal and the time of fixing the abnormal printing stock by the fault gripper assembly, and finding the unique check code B of the reference gripper assembly closest to the fault gripper assembly by comparing the time.
S34: and calculating the distance between the unique check code A of the fault gripper assembly and the unique check code B of the reference gripper assembly to determine the distance between the fault gripper assembly and the reference gripper assembly, so as to find out the fault gripper assembly.
Further, step S3 includes the following steps: numbering the reference gripper assembly and other gripper assemblies in sequence according to a position sequence; and according to the distance between the fault gripper assembly and the reference gripper assembly, combining the serial number of the reference gripper assembly closest to the fault gripper assembly, and determining the serial number of the fault gripper assembly.
Compared with the prior art, the printing machine and the fault gripping tooth searching device and method thereof have the advantages that the reference gripping tooth assembly closest to the fault gripping tooth assembly is determined through the mutual matching of the photoelectric sensing block and the photoelectric probe, and the fault gripping tooth assembly is found out by taking the reference gripping tooth assembly as a reference point, so that the fault gripping tooth assembly can be quickly and accurately searched out, and the fault can be timely eliminated; meanwhile, the maintenance time of the printing machine by operators is reduced, the labor intensity of workers is reduced, and the production efficiency and the product quality are effectively improved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. A fault gripper finding device is used for finding a fault gripper assembly and is characterized by comprising a photoelectric sensing block, a photoelectric probe and an online counting system; the photoelectric sensing block can move along with the reference gripper assembly; the photoelectric probe is used for sending out a photoelectric sensing signal when sensing that the reference gripper assembly passes by; the online counting system is used for recording the sending time of the photoelectric sensing signal and the time of fixing each printing stock by each gripper assembly, determining a reference gripper assembly closest to the fault gripper assembly by comparing the time, and finding out the fault gripper assembly by taking the reference gripper assembly as a reference point; the online counting system is also used for identifying the unique identification code sprayed and printed on each printed material, generating a unique check code when each printed material passes through one gripper assembly, and simultaneously recording the corresponding relation between the check code of the gripper assembly and the identification code corresponding to the gripper assembly.
2. The faulty gripper lookup device as claimed in claim 1 wherein the online counting system is further configured to find the unique check code of the faulty gripper assembly corresponding to the identification code of the abnormal printing stock, then find the time of sending the photoelectric sensing signal and the time of fixing the abnormal printing stock by the faulty gripper assembly, compare the times to find the unique check code of the reference gripper assembly closest to the faulty gripper assembly, calculate the distance between the unique check code of the faulty gripper assembly and the unique check code of the reference gripper assembly, so as to determine the distance between the faulty gripper assembly and the reference gripper assembly, thereby determining the faulty gripper assembly.
3. The faulty gripper lookup device as claimed in claim 2, wherein said in-line counting system is adapted to number said reference gripper assembly and other gripper assemblies in order of position; and determining the serial number of the fault gripper assembly by combining the serial number of the reference gripper assembly closest to the fault gripper assembly according to the distance between the fault gripper assembly and the reference gripper assembly.
4. The faulty gripper lookup device as claimed in claim 1 wherein said photo-sensitive block is disposed at a position on or near said reference gripper assembly; the photoelectric probe is arranged near the position where the photoelectric sensing block is necessary to pass through.
5. A faulty gripper lookup method comprising the steps of:
providing a photoelectric sensing block moving along with the reference gripper assembly;
providing a photoelectric probe capable of sending out a photoelectric sensing signal when the reference gripper assembly is sensed to pass by; recording the sending time of the photoelectric sensing signal and the time of fixing each printing stock by each gripper assembly, determining a reference gripper assembly closest to the fault gripper assembly by comparing the time, and finding out the fault gripper assembly by taking the reference gripper assembly as a reference point; in the step of finding said faulty gripper assembly with said reference gripper assembly as a reference point, further comprising: the unique identification code sprayed and printed on each printed material is identified, a unique check code is generated when each printed material passes through one gripper assembly, and the corresponding relation between the check code of the gripper assembly and the identification code corresponding to the gripper assembly is recorded.
6. The faulty gripper lookup method according to claim 5, wherein the unique check code of the faulty gripper assembly corresponding to the identification code of the abnormal printing stock is looked up; searching the sending time of the photoelectric sensing signal and the time of fixing the abnormal printing stock by the fault gripper assembly, and finding the unique check code of the reference gripper assembly closest to the fault gripper assembly by comparing the time; calculating the distance between the unique check code of the fault gripper assembly and the unique check code of the reference gripper assembly to determine the distance between the fault gripper assembly and the reference gripper assembly, thereby determining the fault gripper assembly.
7. The faulty gripper lookup method as claimed in claim 6, further comprising the steps of: numbering the reference gripper assembly and other gripper assemblies according to a position sequence; and according to the distance between the fault gripper assembly and the reference gripper assembly, combining the serial number of the reference gripper assembly closest to the fault gripper assembly, and determining the serial number of the fault gripper assembly.
8. A printing press comprising a faulty gripper finding device as claimed in any one of claims 1 to 4.
9. The printing press of claim 8, further comprising a printing portion, a delivery portion, a chain way, and a plurality of gripper assemblies; the chain path is used for connecting the printing part and the paper collecting part; the gripper assemblies are sequentially arranged on the chain channel and can move along with the chain channel; the gripper assembly comprises the reference gripper assembly and the fault gripper assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911185530.7A CN110901224B (en) | 2019-11-27 | 2019-11-27 | Printing machine and fault gripper searching device and method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911185530.7A CN110901224B (en) | 2019-11-27 | 2019-11-27 | Printing machine and fault gripper searching device and method thereof |
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| CN110901224A CN110901224A (en) | 2020-03-24 |
| CN110901224B true CN110901224B (en) | 2021-12-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4200406C2 (en) * | 1992-01-10 | 1996-10-10 | Heidelberger Druckmasch Ag | Gripper device on sheet-fed rotary printing machines |
| CN105021950B (en) * | 2014-04-18 | 2019-01-08 | 国家电网公司 | Feeder line fault localization method, apparatus and system |
| CN205167856U (en) * | 2015-12-01 | 2016-04-20 | 郑州华美彩印纸品有限公司 | Paper transport mechanism of offset press and grippers row thereof |
| CN106855603A (en) * | 2016-12-19 | 2017-06-16 | 李庆忠 | Feeder line fault independent positioning method, detecting terminal, main website, alignment system |
| CN110081907B (en) * | 2019-04-19 | 2021-01-01 | 北京航天发射技术研究所 | Fault diagnosis method and fault diagnosis device for positioning and aiming system |
| CN110428400B (en) * | 2019-07-09 | 2021-08-27 | 北京百分点科技集团股份有限公司 | Method, device, equipment and storage medium for positioning equipment fault |
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Address after: Kaixuan Building, No. 143 A, Xizhimenwai Street, Xicheng District, Beijing 100032 Patentee after: China Banknote Printing and Minting Group Co.,Ltd. Patentee after: NANCHANG BANKNOTE PRINTING CO.,LTD. Address before: 100044 Beijing city Xicheng District Xizhimen Street No. 143 Patentee before: CHINA BANKNOTE PRINTING AND MINTING Corp. Patentee before: NANCHANG BANKNOTE PRINTING CO.,LTD. |
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