CN216330737U

CN216330737U - Water supply and temperature control system for cooling roller of printing machine

Info

Publication number: CN216330737U
Application number: CN202122557891.9U
Authority: CN
Inventors: 陈崇元
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-04-19
Anticipated expiration: 2031-10-22

Abstract

The utility model discloses a water supply and temperature control system for a cooling roller of a printing machine, which comprises a water supply tank, a refrigeration and heat preservation water tank and PLC temperature controllers, wherein the water supply tank and the refrigeration and heat preservation water tank are connected through a communicating pipe; the water supply tank is connected with the cooling roller through a first water outlet pipe and a water return pipe respectively, the refrigeration heat-preservation water tank is connected with the water chiller through a second water outlet pipe and a water return pipe respectively, and a water tank water return pipe is fixedly arranged in the refrigeration heat-preservation water tank; one end of the first water outlet pipe is communicated with the side edge of the lower part of the water supply tank, and the other end of the first water outlet pipe is connected with the water inlet end of the cooling roller. The utility model maintains the water temperature of the water supply system, ensures the stable temperature of the water entering the cooling roller, does not influence the strength of paper, and simultaneously automatically sets the water temperature in different time periods through the PLC temperature controller, thereby reducing the electricity consumption cost.

Description

Water supply and temperature control system for cooling roller of printing machine

Technical Field

The utility model belongs to the technical field of printing machine cooling cylinders, and particularly relates to a water supply and temperature control system for a printing machine cooling cylinder.

Background

A color commercial rotary press is used for preventing the ink of printed products from being stained, heating and drying the printed products to accelerate the drying of the ink, and the heated printed products have high paper temperature, poor strength, brittleness and easy rottenness. Therefore, after drying, the printed paper is cooled by the printer cooling roller, and the temperature of the printer cooling roller is kept stable by cold water with constant temperature of about 16 ℃. According to the printers with different specifications, 20-30 cooling water machines are required to cool water, so that the electric quantity is large and the use cost is high.

For more storage cold volume, reduce power consumption use cost, need do the maxmizing water tank as far as possible, the temperature of water drops as far as possible, and the water temperature of refrigeration water tank is low but can not directly carry printing machine cooling cylinder evening, because the temperature of printing machine cooling cylinder is different, can make the presswork paper stretch out and draw back differently, influences the size of following book.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides a water supply and temperature control system for a cooling roller of a printing machine, which maintains the water temperature of a water supply system, ensures the stable temperature of water entering the cooling roller, does not influence the strength of paper, automatically sets the water temperatures in different time periods through a PLC (programmable logic controller) and reduces the power consumption cost.

The technical scheme provided by the utility model is as follows:

a water supply and temperature control system for a cooling roller of a printing machine comprises a water supply and temperature control system respectively connected with a water cooler and the cooling roller, wherein the water supply and temperature control system comprises a water supply tank, a refrigeration heat-preservation water tank and a PLC (programmable logic controller) which is respectively and fixedly connected with the water supply tank and the refrigeration heat-preservation water tank; the water supply tank is connected with the cooling roller through a first water outlet pipe and a water return pipe respectively, the refrigeration heat-preservation water tank is connected with the water chiller through a second water outlet pipe and a water return pipe respectively, and a water tank water return pipe is fixedly arranged in the refrigeration heat-preservation water tank; the water return pipe comprises a first water return pipe, a second water return pipe, a third water return pipe and a fourth water return pipe, an electric three-way regulating valve is connected at the junction of one ends of the first water return pipe, the second water return pipe and the third water return pipe, the first water return pipe is connected to the water outlet end of the cooling roller, the second water return pipe is connected to the upper end of the water tank water return pipe, the third water return pipe is connected to the upper end of the water supply tank, one end of the fourth water return pipe is connected with the water inlet end of the water cooling machine, and the other end of the fourth water return pipe is arranged below the water level of the refrigeration heat-preservation water tank; one end of the first water outlet pipe is communicated with the side edge of the lower part of the water supply tank, the other end of the first water outlet pipe is connected with the water inlet end of the cooling roller, and the second water outlet pipe is arranged on the side edge of the lower part of the refrigeration and heat preservation water tank and is connected with the water inlet end of the water cooler.

Further, the upper end of the water tank return pipe is arranged above the water surface of the refrigeration and heat preservation water tank.

Further, the diameter of the water tank return pipe is larger than that of the second return pipe.

Furthermore, the water supply tank is provided with a water inlet pipe, one end of the water inlet pipe is connected with a tap water source, and the other end of the water inlet pipe is communicated with the side edge of the upper part of the water supply tank.

Furthermore, a water replenishing valve is arranged on the water inlet pipe; and a floating ball is arranged on the water surface in the water supply tank and is fixedly connected with the water replenishing valve through a connecting rod.

Furthermore, a water pump is arranged on the first water outlet pipe, and a water pump is arranged on the second water outlet pipe and the fourth water return pipe together.

Further, the cooling cylinder symmetry is provided with a plurality of, the paper has been placed to the level between the cooling cylinder.

The utility model has the beneficial effects that: 1) the PLC temperature controller can automatically detect the water temperatures of the refrigeration heat-preservation water tank and the water supply tank and control the water temperature to enable the water temperature entering the cooling roller to be stable; 2) the water tank return pipe is arranged to conveniently send hot water in the cooling roller to the lower part of the refrigeration heat-preservation water tank and then to overflow to the water supply tank, so that the water temperature of the supplied water is ensured to be stable; 3) the floating ball and the water replenishing valve arranged in the water supply tank respectively control the water inflow and the water inflow.

Drawings

FIG. 1 is a schematic diagram of a water supply and temperature control system for a cooling cylinder of a printing press according to the present invention.

In the figure: 1. a water chiller; 2. a cooling roller; 3. a water return pipe; 301. a first water return pipe; 302. a second water return pipe; 303. a third water return pipe; 304. a fourth water return pipe; 4. a refrigeration heat-preservation water tank; 5. a water supply tank; 6. an electric three-way regulating valve; 7. a first water outlet pipe; 8. a second water outlet pipe; 9. a water inlet pipe; 10. a water pump; 11. a floating ball; 12. a communicating pipe; 13. a water replenishing valve; 14. paper; 15. a water return pipe of the water tank.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

It should be noted that in the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on the directions or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

Example 1

As shown in figure 1, a water supply temperature control system for printing machine cooling cylinder 2, includes the water supply temperature control system who is connected with cold water machine 1 and cooling cylinder 2 respectively, water supply temperature control system include through the water supply tank 5 that closed tube 12 is connected, refrigeration holding water tank 4 and respectively fixed connection in water supply tank 5 and refrigeration holding water tank 4's PLC temperature controller.

The water supply tank 5 is connected with the cooling roller 2 through a first water outlet pipe 7 and a water return pipe 3 respectively, the refrigeration and heat preservation water tank 4 is connected with the water chiller 1 through a second water outlet pipe 8 and a water return pipe 3 respectively, and a water tank water return pipe 15 is fixedly arranged inside the refrigeration and heat preservation water tank 4.

Wet return 3 includes first wet return 301, second wet return 302, third wet return 303 and fourth wet return 304, the one end intersection of first wet return 301, second wet return 302 and third wet return 303 is connected with electronic three way control valve 6, first wet return 301 connect in 2 water outlet ends of cooling cylinder, second wet return 302 connect in 15 upper ends of water tank wet return, third wet return 303 connect in 5 upper ends of supply tank, fourth wet return 304 one end with cold water machine 1 intakes the end and links to each other, its other end set up in below 4 water levels of refrigeration holding water box.

One end of the first water outlet pipe 7 is communicated with the side edge of the lower part of the water supply tank 5, the other end of the first water outlet pipe is connected with the water inlet end of the cooling roller 2, and the second water outlet pipe 8 is arranged on the side edge of the lower part of the refrigeration and heat preservation water tank 4 and is connected with the water inlet end of the water cooler 1.

As a further step of this embodiment, the upper end of the water tank return pipe 15 is disposed above the water surface of the refrigeration and heat-preservation water tank 4, so as to prevent the hot water from the cooling drum 2 from mixing with the hot water on the upper portion of the refrigeration and heat-preservation water tank 4, and thus the temperature of the water on the upper portion of the refrigeration and heat-preservation water tank 4 cannot be kept constant.

As a further step of this embodiment, the diameter of the water tank return pipe 15 is greater than the diameter of the second water return pipe 302, so that the hot water in the cooling drum 2 can be conveniently fed to the lower portion of the cooling and heat-preserving water tank 4.

As a further step of this embodiment, the water supply tank 5 is provided with a water inlet pipe 9, and one end of the water inlet pipe 9 is connected to a tap water source and the other end is communicated with the upper side of the water supply tank 5.

As a further step of this embodiment, a water replenishing valve 13 is disposed on the water inlet pipe 9, a floating ball 11 is disposed on the water surface inside the water supply tank 5, the floating ball 11 is fixedly connected with the water replenishing valve 13 through a connecting rod, the water replenishing valve 13 controls the water inlet pipe 9 to feed water, and the floating ball 11 controls the water inflow to make the water level of the water inlet tank lower than the water level of the refrigeration and heat preservation water tank 4.

As a further step of the present embodiment, a water pump 10 is disposed on the first water outlet pipe 7, and the water pump 10 is used for pressurizing to make the water in the water supply tank 5 smoothly enter the cooling drum 2; the second water outlet pipe 8 and the fourth water return pipe 304 are provided with a water pump 10, and the water pump 10 is used for increasing the flow rate of the second water outlet pipe 8 and increasing the pressure so that water acted by the water cooler 1 can smoothly enter the refrigeration and heat preservation water tank 4.

Further, 2 symmetries of cooling cylinder are provided with a plurality of, paper 14 has been placed to the level between cooling cylinder 2, and the paper 14 of being convenient for is rapid cooling under the constant temperature cold water effect in cooling cylinder 2, guarantees 14 intensity of paper.

The working principle of the utility model is as follows: when the temperature of the water supply tank 5 displayed by the PLC temperature controller is lower than 17 ℃, the hot water cooled by the printing machine cooling roller 2 is controlled to flow into the water supply tank 5 through a third water return pipe 303 by a first water return pipe 301 through an electric three-way regulating valve 6; when the temperature of the water supply tank 5 displayed by the PLC temperature controller is higher than 17 ℃, hot water after being cooled by the printing machine cooling roller 2 flows into the lower part of the refrigeration heat-preservation water tank 4 from a second water return pipe 302 and a water tank water return pipe 15 in sequence through a first water return pipe 301 and the control of an electric three-way regulating valve 6, so that cold water on the upper part of the refrigeration heat-preservation water tank 4 overflows into the water supply tank 5 through a communicating pipe 12 to reduce the water temperature of the water supply tank 5; when the temperature of the water supply tank 5 displayed by the PLC temperature controller is lower than 16 ℃, the hot water of the printing machine cooling roller 2 is controlled to a third water return pipe 303 through a first water return pipe 301 and an electric three-way regulating valve 6 and then flows into the water supply tank 5. Repeating the above operation realizes the supply of cold water of a stable temperature to the cooling cylinder 2 of the printing press. The hot water flowing into the refrigeration and heat preservation water tank 4 enters the water cooler 1 through the second water outlet pipe 8 under the action of the water pump 10, and the water treated by the water cooler 1 flows into the upper part of the refrigeration and heat preservation water tank 4 through the fourth water return pipe 304 under the action of the water pump 10.

The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention can be made by those skilled in the art without departing from the principle and spirit of the present invention, and the scope of the present invention is defined by the appended claims.

Claims

1. A water supply and temperature control system for a cooling roller of a printing machine comprises a water supply and temperature control system respectively connected with a water cooler (1) and the cooling roller (2), and is characterized in that the water supply and temperature control system comprises a water supply tank (5) and a refrigeration heat-preservation water tank (4) which are connected through a communicating pipe (12), and PLC temperature controllers respectively fixedly connected with the water supply tank (5) and the refrigeration heat-preservation water tank (4);

the water supply tank (5) is connected with the cooling roller (2) through a first water outlet pipe (7) and a water return pipe (3) respectively, the refrigeration heat-preservation water tank (4) is connected with the water chiller (1) through a second water outlet pipe (8) and the water return pipe (3) respectively, and a water tank water return pipe (15) is fixedly arranged in the refrigeration heat-preservation water tank (4); the water return pipe (3) comprises a first water return pipe (301), a second water return pipe (302), a third water return pipe (303) and a fourth water return pipe (304), the junction of one ends of the first water return pipe (301), the second water return pipe (302) and the third water return pipe (303) is connected with an electric three-way regulating valve (6), the first water return pipe (301) is connected with the water outlet end of the cooling roller (2), the second water return pipe (302) is connected with the upper end of the water tank water return pipe (15), the third water return pipe (303) is connected with the upper end of the water supply tank (5), one end of the fourth water return pipe (304) is connected with the water inlet end of the water cooling machine (1), and the other end of the fourth water return pipe is arranged below the water level of the refrigeration heat-preservation water tank (4);

one end of the first water outlet pipe (7) is communicated with the side edge of the lower part of the water supply tank (5), the other end of the first water outlet pipe is connected with the water inlet end of the cooling roller (2), and the second water outlet pipe (8) is arranged on the side edge of the lower part of the refrigeration and heat preservation water tank (4) and is connected with the water inlet end of the water cooler (1).

2. The water supply and temperature control system for the cooling cylinder of the printing press as claimed in claim 1, wherein the upper end of the water tank return pipe (15) is arranged above the water level of the refrigeration and heat preservation water tank (4).

3. The water supply and temperature control system for the cooling cylinder of the printing press as claimed in claim 1 or 2, characterized in that the diameter of the water tank return pipe (15) is greater than the diameter of the second return pipe (302).

4. The water supply and temperature control system for the cooling cylinder of the printing press as claimed in claim 1, wherein the water supply tank (5) is provided with a water inlet pipe (9), one end of the water inlet pipe (9) is connected with a tap water source, and the other end is communicated with the upper side of the water supply tank (5).

5. The water supply and temperature control system for the cooling cylinder of the printing press as claimed in claim 4, wherein the water inlet pipe (9) is provided with a water supply valve (13); a floating ball (11) is arranged on the water surface inside the water supply tank (5), and the floating ball (11) is fixedly connected with the water replenishing valve (13) through a connecting rod.

6. The water supply and temperature control system for the cooling cylinder of the printing press as claimed in claim 1, wherein the first water outlet pipe (7) is provided with a water pump (10), and the second water outlet pipe (8) and the fourth water return pipe (304) are provided with a water pump (10) together.

7. The water supply and temperature control system for the cooling cylinder of the printing press as claimed in claim 1, wherein a plurality of cooling cylinders (2) are symmetrically arranged, and paper (14) is horizontally placed between the cooling cylinders (2).