CN212827326U - Offset press damping PH value alarm device - Google Patents
Offset press damping PH value alarm device Download PDFInfo
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- CN212827326U CN212827326U CN202020831055.8U CN202020831055U CN212827326U CN 212827326 U CN212827326 U CN 212827326U CN 202020831055 U CN202020831055 U CN 202020831055U CN 212827326 U CN212827326 U CN 212827326U
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Abstract
The utility model discloses an offset press damping pH value alarm device, damping water return circuit department installation pH value sensor, the pH value sensor electricity is connected to central controller, central controller electricity connection display screen and alarm lamp report to the police when the pH value surpasss the normal scope of settlement, play suggestion and warning user's effect, play suggestion and warning effect before bad quality of water influences the printing quality, and help the quick judgement fault reason, the rejection rate of printing that can significantly reduce practices thrift raw and other materials such as paper, printing ink.
Description
Technical Field
The utility model belongs to printing production control field, concretely relates to carry out the device that pH value monitoring was reported to police to damping system to the offset printing process.
Background
Offset printing requires a dampening system to provide a special "dampening water" to the press to wet the plate. The "dampening water" circulating in the dampening system contains mainly water, dampening solution, alcohol and impurities such as ink brought back from the printing press during printing. Whether the dampening water meets the requirements of the printing machine or not directly influences the quality of printed products after printing. The PH is an important parameter of fountain water, and only fountain water that meets a certain range of PH is suitable for printing.
The existing dampening system has no PH value monitoring function, and the dampening state monitoring is mainly realized by visual inspection of printing quality by printing personnel. When the quality of the printed product is found to be in a problem due to dampening water by visual inspection, whether dampening equipment works normally or not needs to be checked, possible reasons are gradually checked, and then a fault can be judged and maintained, so that huge waste of raw materials such as paper, printing ink and the like and working hours is inevitably caused.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide an offset press damping pH value alarm device of automatic suggestion damping water quality reports to the police.
In order to solve the technical problem, the utility model discloses a technical scheme be: a PH value sensor is installed at a dampening water loop of the offset press, the PH value sensor is electrically connected to a central controller, and a display screen and an alarm lamp are electrically connected to the central controller.
Preferably, the dampening water circuit is further provided with a conductivity sensor, and the conductivity sensor is electrically connected to the central controller.
Implement the technical scheme of the utility model, can real-time supervision and show the pH value of fountain water, report to the police when the pH value surpasss the normal scope of settlement, play suggestion and warning user's effect, play suggestion and warning effect before bad quality of water influences the printing quality to help the snap judgments trouble reason, the rejection rate of printing that can significantly reduce practices thrift raw and other materials such as paper, printing ink.
Drawings
FIG. 1 is a schematic diagram of a PH value alarm device for a dampening plate of an offset printing press.
Fig. 2 is a schematic diagram of a PH sensor.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1, the PH alarm device for a dampening plate of an offset printing press mainly comprises a PH sensor 1, a central controller 3 and an alarm lamp 5.
The PH value sensor 1 is arranged in a water loop 2 of the dampening system and is connected with the controller through a signal wire; the water loop 2 is a part of a water pipeline of the dampening system, water in the water loop 2 is always in a flowing state, and the water quality is consistent with that of a water storage tank of the dampening system. The central controller 3 is a central controller of the dampening system, receives an electric signal from the PH sensor, and controls the display screen 4 and the alarm lamp 5 to operate. Display screen 4 installs in casing operating panel, shows real-time pH value and alarm information. The alarm lamp 5 is installed at a position where the cabinet is easily observed, and the operation is controlled by the central controller 3.
PH information among the water circuit 2 is gathered to PH value sensor 1 to circular telegram signal line transmission to central controller 3, and central controller 3 calculates the signal of receiving and compares with the settlement parameter, and when actual measurement parameter exceeded normal range, control 5 acousto-optic warning of alarm lamp and show actual measurement PH value and alarm information at display screen 4.
When the measured PH value is higher than the set upper limit, the central controller controls an alarm lamp 5 to give an audible and visual alarm, a display screen 4 displays the measured PH value and prompts a user to give an alarm on the upper limit of the PH value, whether the fountain solution adding function of a fountain system is normal or not and whether equipment needs to change water or not are checked; when the measured PH value is lower than the set lower limit, the central controller controls the alarm lamp 5 to give an audible and visual alarm, and the display screen 4 displays the measured PH value and prompts a user to give an alarm when the PH value is lower than the set lower limit.
As shown in fig. 2, the PH sensor is composed of a casing 1.1, a detection terminal 1.2 and a lead terminal 1.3, the detection terminal 1.2 and the lead terminal 1.3 are disposed at two ends of the casing 1.1, and the lead terminal 1.3 is connected to the central controller 3.
The surface of PH value sensor sense terminal is provided with the oil-proof layer, and the oil-proof layer is formed by the preparation of waterproof medicine material, can make the PH value sensor sense terminal have good waterproof performance, oil proofness and wearability, can prevent that the greasy dirt in the dampening environment from causing the influence to PH value sensor sense terminal, promotes the measurement numerical value accuracy.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.
Claims (1)
1. The utility model provides an offset press damping PH value alarm device which characterized in that: a PH value sensor is arranged at the dampening water loop, the PH value sensor is electrically connected to a central controller, and the central controller is electrically connected with a display screen and an alarm lamp; the PH value sensor consists of a shell, a detection end and a lead end, wherein the detection end and the lead end are arranged at two ends of the shell, and the lead end is connected to the central controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020831055.8U CN212827326U (en) | 2020-05-18 | 2020-05-18 | Offset press damping PH value alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020831055.8U CN212827326U (en) | 2020-05-18 | 2020-05-18 | Offset press damping PH value alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212827326U true CN212827326U (en) | 2021-03-30 |
Family
ID=75160777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020831055.8U Active CN212827326U (en) | 2020-05-18 | 2020-05-18 | Offset press damping PH value alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212827326U (en) |
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2020
- 2020-05-18 CN CN202020831055.8U patent/CN212827326U/en active Active
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