阅读说明：本技术 一种清洗机构和清洗装置 (Cleaning mechanism and cleaning device ) 是由 宋常红 苏云香 于 2021-01-29 设计创作，主要内容包括：本发明公开了一种清洗机构和清洗装置,涉及印刷技术领域,解决了现有技术中喷射杆易发生变形,导致喷射孔到清洗用布卷距离不等,以及喷射杆上各喷射孔喷出的水量和水压不一致的技术问题。本发明的清洗机构包括水管组件、喷水组件和清洗用布卷,水管组件用于供清洗水流通,水管组件上串联设置有多组喷水组件,每组喷水组件彼此独立固定于底板上并使每组喷水组件与清洗用布卷间的距离保持恒定；喷水组件包括电磁阀和喷头,电磁阀和喷头串联,电磁阀用于控制喷头的工作状态,并使喷头至少具有喷水状态或非喷水状态。该清洗机构和清洗装置可使喷水组件与清洗用布卷间的距离保持恒定、各喷水组件喷射出的清洗水水量均匀、水压恒定。(The invention discloses a cleaning mechanism and a cleaning device, relates to the technical field of printing, and solves the technical problems that in the prior art, a spray rod is easy to deform, so that the distances from spray holes to a cloth roll for cleaning are not equal, and the water quantity and the water pressure sprayed by each spray hole on the spray rod are not consistent. The cleaning mechanism comprises a water pipe assembly, water spraying assemblies and cleaning yardage rolls, wherein the water pipe assembly is used for cleaning water to circulate; the water spraying assembly comprises an electromagnetic valve and a spray head, the electromagnetic valve is connected with the spray head in series, and the electromagnetic valve is used for controlling the working state of the spray head and enabling the spray head to have at least a water spraying state or a non-water spraying state. The cleaning mechanism and the cleaning device can keep the distance between the water spraying components and the cleaning cloth roll constant, the amount of cleaning water sprayed by each water spraying component is uniform, and the water pressure is constant.)

1. A cleaning mechanism is characterized by comprising a water pipe assembly, a water spraying assembly and a cleaning cloth roll (3), wherein the water pipe assembly is used for allowing cleaning water to circulate, a plurality of groups of water spraying assemblies are arranged on the water pipe assembly in series, each group of water spraying assemblies are independently fixed on a bottom plate, and the distance between each group of water spraying assemblies and the cleaning cloth roll (3) is kept constant; and is

The water spraying assembly comprises an electromagnetic valve (21) and a spray head (22), the electromagnetic valve (21) and the spray head (22) are connected in series, and the electromagnetic valve (21) is used for controlling the working state of the spray head (22) and enabling the spray head (22) to at least have a water spraying state or a non-water spraying state.

2. The washing mechanism according to claim 1, characterized in that the water pipe assembly comprises a plurality of water pipes (101), the water pipes (101) are connected in series, and the water spray assembly is arranged between the ends of two adjacent water pipes (101).

3. The washing mechanism according to claim 2, characterized in that the water pipes (101) are of a straight or curved structure and the distance between two adjacent groups of water spray assemblies is the same.

4. The washing mechanism according to claim 1, characterized in that when the spray head (22) is in a water spraying state, the electromagnetic valve (21) is communicated with the water pipe assembly, and washing water in the water pipe assembly enters the electromagnetic valve (21) and then is sprayed from the spray head (22) to the washing cloth roll (3); when the spray head (22) is in a non-spraying state, the electromagnetic valve (21) is isolated from the water pipe assembly.

5. The washing mechanism according to claim 4, characterized in that the solenoid valve (21) comprises a valve body (211), a washing water inlet (2111) and a water flow channel (2112) are provided on the valve body (211), the washing water inlet (2111) communicates with a water pipe assembly, the washing water inlet (2111) also communicates with the water flow channel (2112), the water flow channel (2112) communicates with the spray head (22), and

when the spray head (22) is in a water spraying state, cleaning water in the water pipe assembly enters the water flow channel (2112) through the cleaning water inlet (2111), and the cleaning water in the water flow channel (2112) enters the spray head (22) and is sprayed onto the cleaning cloth roll (3) from the spray head (22).

6. The washing mechanism according to claim 5, characterized in that the solenoid valve (21) further comprises a coil (212), a telescopic column (213) and a spring (214), wherein the coil (212) is fixedly connected with the telescopic column (213), the spring (214) is located between the telescopic column (213) and the valve body (211), and

when the coil (212) is in a power-off state, the telescopic column (213) moves towards the direction close to the valve body (211) under the action of the spring (214) and enables the water flow channel (2112) to be closed, and when the coil (212) is in a power-on state, the telescopic column (213) moves towards the direction far away from the valve body (211) under the action of magnetic force and enables the water flow channel (2112) to be opened.

7. The washing mechanism according to claim 1, characterized in that a water spray hole (221) is provided in the spray head (22), the water spray hole (221) communicates with a water flow channel (2112), and washing water entering the water spray hole (221) through the water flow channel (2112) is sprayed from the water spray hole (221) onto the washing cloth roll (3).

8. The cleaning mechanism of claim 7, wherein the water jet (221) comprises a first water jet (2211) and a second water jet (2212), wherein,

the first water jet hole (2211) is communicated with the water flow channel (2112), and the first water jet hole (2211) and the water flow channel (2112) have the same diameter;

the second water spray hole (2212) is positioned at the end of the first water spray hole (2211) far away from one end of the water flow channel (2112), the diameter of the second water spray hole (2212) is smaller than that of the first water spray hole (2211), and the injection angle (alpha) of the second water spray hole (2212) is 100-120 degrees.

9. The washing mechanism according to claim 1, characterized in that the water spray assembly further comprises a locking cap (23) and a locking nut (24), wherein the locking cap (23) is used to fix the spray head (22) to the solenoid valve (21); the locking nut (24) is arranged at the end part of the electromagnetic valve (21) and is used for fixing the electromagnetic valve (21) on the bottom plate.

10. A cleaning device comprising a cleaning mechanism as claimed in any one of claims 1 to 9.

Technical Field

The invention relates to the technical field of printing, in particular to a cleaning mechanism for cleaning a printing machine roller and a cleaning device comprising the same.

Background

In the web press, a large amount of ink, paper dust, and the like remain on the surfaces of the upper blanket cylinder and the lower blanket cylinder during printing, and cleaning is required at random. In the prior art, the blanket cylinder is cleaned in two ways: the first is manual cleaning; the second is spray bar type automatic cleaning.

The manual cleaning requires that the printing paper between the upper blanket cylinder and the lower blanket cylinder be manually wiped after being cut off. The manual cleaning mode not only consumes a large amount of manpower, but also is extremely time-consuming to reload the disconnected paper into the printing machine, and influences the printing efficiency. Fig. 1 and 2 are schematic views showing a prior art spray bar type automatic cleaning apparatus. As shown in fig. 1 and 2, after the cleaning water is sprayed to the water dispersion plate 2 'through the spray rod 1' for dispersion, the cleaning cloth roll 3 is wetted; the upper blanket cylinder 4 and the lower blanket cylinder 5 which roll are wiped and cleaned by the wet cleaning cloth roll 3. The automatic cleaning device of the spray rod type can replace manpower and clean without manually breaking paper.

Fig. 3 shows a schematic view of a prior art spray bar 1'. As shown in FIG. 3, the spray bar 1 ' is a steel pipe having a thickness of 6mm between the steel pipes and a wall thickness of 1mm, and the steel pipe is provided with spray holes 101 ' having a hole diameter of 0.3 to 0.5mm, for example, the spray holes 101 ' have a hole diameter of 0.3mm, 0.4mm or 0.5 mm. The injection holes 101' have different diameters in order to adjust the amount of water to be injected and the pressure of water. However, the applicant has found that the automatic cleaning device of the prior art with a spray bar type has the following disadvantages when in use:

(1) the jet hole 101 'is too long and is easy to deform, and the distance from the jet hole 101' to the cleaning cloth roll 3 is unequal, so that the jet is uneven, the jet water pressure is unequal, and the cleaning effect is influenced, as shown in fig. 4;

(2) the pressure loss in the inner tube of the spray bar 1 ' is different in the pressure and the amount of water sprayed from the different spray holes 101 ', and although the amount of water and the pressure of water can be properly adjusted by using the spray holes 101 ' having different diameters, it is difficult to ensure the constant amount of water and the pressure of water sprayed due to the pressure loss, as shown in fig. 5 or 6. The water pressure and amount of water discharged from the discharge holes 101' are not controlled, resulting in non-uniform discharge. The blanket cylinder cannot be cleaned cleanly at the position with too little water injection amount; if the amount of water in the spray bar 1' is increased as a whole, the cleaning water adheres to the upper blanket cylinder 4 and slips down onto the paper 6, so that the paper 6 is broken, paper needs to be refilled, and printing efficiency is affected.

Therefore, there is an urgent need for improvement of the prior art cleaning apparatus.

Disclosure of Invention

One of the purposes of the invention is to provide a cleaning mechanism and a cleaning device, which solve the technical problems that in the prior art, a spray rod is easy to deform, so that the distances from spray holes to a cloth roll for cleaning are not equal, and the water quantity and the water pressure sprayed by each spray hole on the spray rod are not consistent. The various technical effects that can be produced by the preferred technical solution of the present invention are described in detail below.

In order to achieve the purpose, the invention provides the following technical scheme:

the cleaning mechanism is characterized by comprising a water pipe assembly, a water spraying assembly and a cleaning cloth roll, wherein the water pipe assembly is used for allowing cleaning water to circulate; the water spraying assembly comprises an electromagnetic valve and a spray head, the electromagnetic valve is connected with the spray head in series, and the electromagnetic valve is used for controlling the working state of the spray head and enabling the spray head to have at least a water spraying state or a non-water spraying state.

According to a preferred embodiment, the water pipe assembly comprises a plurality of water pipes which are connected in series with each other, and the water spray assembly is arranged between the end portions of two adjacent water pipes.

According to a preferred embodiment, the water pipes are in a straight or bent structure, and the distance between two adjacent groups of the water spray assemblies is the same.

According to a preferred embodiment, when the spray head is in a water spraying state, the electromagnetic valve is communicated with the water pipe assembly, and cleaning water in the water pipe assembly enters the electromagnetic valve and then is sprayed out of the spray head to the cleaning cloth roll; when the spray head is in a non-water spraying state, the electromagnetic valve is isolated from the water pipe assembly.

According to a preferred embodiment, the electromagnetic valve includes a valve body, the valve body is provided with a cleaning water inlet and a water flow channel, the cleaning water inlet is communicated with a water pipe assembly, the cleaning water inlet is also communicated with the water flow channel, the water flow channel is communicated with the spray head, and when the spray head is in a water spraying state, cleaning water in the water pipe assembly enters the water flow channel through the cleaning water inlet, and the cleaning water in the water flow channel enters the spray head and is sprayed out of the spray head onto the cleaning cloth roll.

According to a preferred embodiment, the solenoid valve further comprises a coil, a telescopic column and a spring, wherein the coil is fixedly connected with the telescopic column, the spring is located between the telescopic column and the valve body, when the coil is in a power-off state, the telescopic column moves towards a direction close to the valve body under the action of the spring and closes the water flow channel, and when the coil is in a power-on state, the telescopic column moves towards a direction far away from the valve body under the action of magnetic force and opens the water flow channel.

According to a preferred embodiment, a water spraying hole is formed in the nozzle, the water spraying hole is communicated with a water flow channel, and cleaning water entering the water spraying hole through the water flow channel is sprayed to the cleaning cloth roll from the water spraying hole.

According to a preferred embodiment, the water jet holes comprise a first water jet hole and a second water jet hole, wherein the first water jet hole is communicated with the water flow channel, and the diameter of the first water jet hole is the same as that of the water flow channel; the second water spray holes are positioned at the end parts of the first water spray holes far away from one end of the water flow channel, the diameter of the second water spray holes is smaller than that of the first water spray holes, and the spraying angle of the second water spray holes is 100-120 degrees.

According to a preferred embodiment, the water spray assembly further comprises a locking cap and a locking nut, wherein the locking cap is used for fixing the spray head on the solenoid valve; the locking nut is arranged at the end part of the electromagnetic valve and used for fixing the electromagnetic valve on the bottom plate.

The cleaning device comprises the cleaning mechanism according to any technical scheme of the invention.

The cleaning mechanism and the cleaning device provided by the invention at least have the following beneficial technical effects:

according to the cleaning mechanism, the water pipe assembly is used for allowing cleaning water to circulate, the water pipe assembly is provided with the plurality of groups of water spraying assemblies in series, each group of water spraying assemblies are independently fixed on the bottom plate, the distance between each group of water spraying assemblies and a cleaning cloth roll is kept constant, and because each group of water spraying assemblies can be independently fixed on the bottom plate, deformation caused by water filling in the water pipe assembly is avoided, the distance between each group of water spraying assemblies and the cleaning cloth roll can be kept constant, so that the constant spraying water pressure of each group of water spraying assemblies can be ensured, and the uniformity of sprayed cleaning water can be ensured.

On the other hand, the water spraying component of the cleaning mechanism comprises an electromagnetic valve and a spray head, wherein the electromagnetic valve is connected with the spray head in series, the electromagnetic valve is used for controlling the working state of the spray head and enabling the spray head to have at least a water spraying state or a non-water spraying state, when cleaning is needed, when the spray head is in the water spraying state, cleaning water is sprayed out from the spray head to a cleaning cloth roll, and a rolling rubber roller is wiped by the wetted cleaning cloth roll, so that the automatic cleaning effect can be achieved; when the cleaning is not needed, the water can be saved when the spray head is in a non-spraying state; and because the cleaning water is sprayed from the spray head to the cleaning cloth roll, the water spraying component can not be influenced by pressure loss in the pipe when spraying water, so that the water quantity sprayed by each water spraying component is consistent with the water pressure, and the sprayed cleaning water is further uniform.

The cleaning device comprises the cleaning mechanism of any technical scheme, so that the cleaning device has the advantages that the distance between the water spraying assemblies and the cleaning cloth roll can be kept constant, the amount of cleaning water sprayed by each water spraying assembly is uniform, and the water pressure is constant.

The cleaning mechanism and the cleaning device solve the technical problems that in the prior art, the spray rod is easy to deform, so that the distances from the spray holes to the cleaning cloth roll are different, and the water quantity and the water pressure sprayed by each spray hole on the spray rod are inconsistent.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a first schematic view of a prior art spray bar type automatic cleaning apparatus;

FIG. 2 is a second schematic view of a prior art spray wand type automatic cleaning apparatus;

FIG. 3 is a schematic view of a prior art spray wand;

FIG. 4 is a schematic view of a post-deformation spray bar in the prior art;

FIG. 5 is a schematic view of the injection angle of each injection hole of the injection rod in the prior art;

FIG. 6 is a schematic view of the shape of a wetting point on a roll of prior art cleaning cloth;

FIG. 7 is a schematic view of a preferred embodiment of the cleaning apparatus of the present invention;

FIG. 8 is a schematic view of a preferred embodiment of a cleaning mechanism of the present invention;

FIG. 9 is a schematic view of the shape of a preferred embodiment of the wetting point on the roll of cleaning cloth of the present invention;

FIG. 10 is a first schematic view of a preferred embodiment of the water spray assembly of the present invention;

fig. 11 is an enlarged view of a portion a in fig. 10;

FIG. 12 is a second schematic view of a preferred embodiment of the water jet assembly of the present invention.

In the figure: 1', a spray bar; 101', injection holes; 2', a water dispersion disc; 101. a water pipe; 21. an electromagnetic valve; 211. a valve body; 2111. a wash water inlet; 2112. a water flow channel; 212. a coil; 213. a telescopic column; 214. a spring; 215. a plug; 22. a spray head; 221. a water spray hole; 2211. a first water spray hole; 2212. A second water jet hole; 23. a locking cap; 24. locking the nut; alpha, the spray angle; 3. cleaning cloth roll; 4. an upper blanket cylinder; 5. a lower blanket cylinder; 6. paper.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

The cleaning mechanism and the cleaning apparatus according to the present invention will be described in detail with reference to fig. 7 to 12 and embodiments 1 and 2 of the specification.

Example 1

This example will explain the cleaning mechanism of the present invention in detail.

The cleaning mechanism of the embodiment comprises a water pipe assembly, a water spraying assembly and a cleaning cloth roll 3, as shown in fig. 7 or 8. Wherein, the water pipe assembly is used for supplying and washs the water circulation, and the last series connection of water pipe assembly is provided with the multiunit water spray subassembly, and every group water spray subassembly is independently fixed in on the bottom plate each other and makes the distance between every group water spray subassembly and the yardage roll 3 for washing keep invariable. Preferably, the water spraying assembly comprises a solenoid valve 21 and a spray head 22, the solenoid valve 21 and the spray head 22 are connected in series, and the solenoid valve 21 is used for controlling the working state of the spray head 22 and enabling the spray head 22 to have at least a water spraying state or a non-water spraying state, as shown in fig. 7 or 8.

The wiper mechanism of this embodiment, the water pipe assembly is used for supplying to wash the water circulation, it is provided with the multiunit water spray subassembly to establish ties on the water pipe assembly, every group water spray subassembly independently is fixed in on the bottom plate each other and makes every group water spray subassembly and wash with the yardage roll 3 distance between keep invariable, because every group water spray subassembly can independently be fixed in on the bottom plate each other, can not take place to warp because fill water in the water pipe assembly, therefore can guarantee that the distance between water spray subassembly and wash with the yardage roll 3 keeps invariable, thereby can guarantee that the injection water pressure of water spray subassembly is invariable, guarantee that the spun.

On the other hand, the water spray assembly of the cleaning mechanism of the embodiment includes the electromagnetic valve 21 and the spray head 22, the electromagnetic valve 21 and the spray head 22 are connected in series, the electromagnetic valve 21 is used for controlling the working state of the spray head 22, and the spray head 22 at least has a water spray state or a non-water spray state, when cleaning is needed, when the spray head 22 is in the water spray state, cleaning water is sprayed from the spray head 22 to the cleaning cloth roll 3, the rolling blanket cylinder is wiped by the wet cleaning cloth roll 3, and the automatic cleaning function can be achieved; when the cleaning is not needed, the water can be saved when the spray head 22 is in a non-spraying state; furthermore, since the washing water is sprayed from the spray head 22 to the washing cloth roll 3, the water spraying of the water spraying modules is not affected by the pressure loss in the pipe, so that the water amount sprayed by each water spraying module is consistent with the water pressure, and the sprayed washing water is further uniform.

That is, the cleaning mechanism of the embodiment solves the technical problems that the spray rod 1 'is easy to deform, the distance from the spray hole 101' to the cleaning cloth roll 3 is unequal, and the water volume and the water pressure sprayed by each spray hole 101 'on the spray rod 1' are inconsistent in the prior art.

According to a preferred embodiment, the water pipe assembly includes a plurality of water pipes 101, the plurality of water pipes 101 are connected in series with each other, and the water spray assembly is disposed between the ends of two adjacent water pipes 101, as shown in fig. 8. Preferably, the water pipes 101 are straight or curved, and the distance between two adjacent water spray assemblies is the same. In the preferred technical scheme of this embodiment, the two adjacent water spraying assemblies have the same distance, which means that the two adjacent water spraying assemblies have the same linear distance. Specifically, the bending type structure is, for example, an S-type structure or a wave-type structure.

The water pipe 101 of the preferred embodiment of the present invention only functions to circulate the cleaning water and serially connect the water spraying units, so the water pipe 101 may be a straight pipe or a bent pipe, and the distance between the water spraying unit and the cleaning cloth roll 3 is not affected. Furthermore, the distance between two adjacent groups of water spray assemblies in the preferred technical scheme of the embodiment is the same, so that the cleaning water sprayed to all positions on the cleaning cloth roll 3 is uniform, the problem that the cleaning cloth roll 3 is not clean due to too little cleaning water is avoided, the problem that the cleaning cloth roll 3 is broken due to too much cleaning water is avoided, and the cleaning quality and the cleaning efficiency are improved.

Preferably, the distance between the end face of the water spraying component and the cleaning cloth roll 3 is 40-80 mm. More preferably, the distance between the end surface of the water jet unit and the cleaning cloth roll 3 is 60 mm. The distance between the end face of the water spraying component and the cleaning cloth roll 3 is 40-80 mm, and the cleaning water sprayed by the water spraying component can be effectively sprayed onto the cleaning cloth roll 3.

According to a preferred embodiment, when the spray head 22 is in a water spraying state, the electromagnetic valve 21 is communicated with the water pipe assembly, and cleaning water in the water pipe assembly enters the electromagnetic valve 21 and then is sprayed from the spray head 22 to the cleaning cloth roll 3; when the nozzle 22 is in a non-spraying state, the solenoid valve 21 is isolated from the water pipe assembly. The preferred technical scheme of this embodiment passes through the operating condition of on-off control shower nozzle 22 of solenoid valve 21, because solenoid valve 21 operating time is controllable, can wash as required according to the particular conditions of upper portion blanket cylinder 4 and lower part blanket cylinder 5, can not cause the problem that the washing water is too little to wash unclean, can not cause the problem of too much disconnected paper of washing water yet, can improve printing machine cleaning quality and cleaning efficiency greatly.

According to a preferred embodiment, the solenoid valve 21 comprises a valve body 211, as shown in fig. 10 or 12. Preferably, the valve body 211 is provided with a cleaning water inlet 2111 and a water flow channel 2112, the cleaning water inlet 2111 is communicated with the water pipe assembly, the cleaning water inlet 2111 is further communicated with the water flow channel 2112, the water flow channel 2112 is communicated with the spray head 22, and when the spray head 22 is in a water spraying state, the cleaning water in the water pipe assembly enters the water flow channel 2112 through the cleaning water inlet 2111, and the cleaning water in the water flow channel 2112 enters the spray head 22 and is sprayed out of the spray head 22 onto the cleaning cloth roll 3. In the preferred embodiment, the cleaning water in the water pipe assembly enters the nozzle 22 and is sprayed from the nozzle 22 to the cleaning cloth roll 3 through the cleaning water inlet 2111 and the water flow passage 2112 of the valve body 211, so that the cleaning cloth roll 3 is wetted to wipe the rolling upper blanket cylinder 4 or lower blanket cylinder 5, thereby achieving the function of automatic cleaning.

Preferably, the diameter of the washing water inlet 2111 is 5 to 8 mm. More preferably, the washing water inlet 2111 has a diameter of 6.5 mm. The diameter of the washing water inlet 2111 in the preferred technical scheme of the embodiment is 5-8 mm, so that enough washing water can enter the water flow channel 2112.

Preferably, the diameter of the water flow channel 2112 is 0.3-0.6 mm. More preferably, the water flow passage 2112 has a diameter of 0.5 mm. In the preferred technical scheme of the embodiment, the diameter of the water flow channel 2112 is 0.3-0.6 mm, and the diameter is small, so that the cleaning water entering the spray head 22 from the water flow channel 2112 has enough pressure to be sprayed onto the cleaning cloth roll 3.

According to a preferred embodiment, the solenoid valve 21 further comprises a coil 212, a telescopic column 213 and a spring 214, as shown in fig. 10 or 12. The coil 212 is fixedly connected with the telescopic column 213, the spring 214 is located between the telescopic column 213 and the valve body 211, when the coil 212 is in a power-off state, the telescopic column 213 moves towards a direction close to the valve body 211 under the action of the spring 214 and closes the water flow channel 2112, and when the coil 212 is in a power-on state, the telescopic column 213 moves towards a direction away from the valve body 211 under the action of magnetic force and opens the water flow channel 2112. When the coil 212 is in the de-energized state, the telescopic rod 213 is moved by the spring 214 in a direction approaching the valve body 211 and closing the water flow passage 2112, and the washing mechanism is not operated. Specifically, the telescopic post 213 can move in a direction to approach the valve body 211 based on the tensile force of the spring 214 and close the water flow passage 2112. When the coil 212 is in the energized state, the telescopic column 213 moves in the direction away from the valve body 211 against the force of the spring 214 under the action of magnetic force and opens the water flow passage 2112, at this time, the cleaning mechanism operates, and cleaning water enters the water flow passage 2112 through the cleaning water inlet 2111, enters the spray head 22 through the water flow passage 2112, and is sprayed out of the spray head 22 to clean the blanket cylinder.

Preferably, the solenoid valve 21 further includes a plug 215, as shown in fig. 10 or 12. Preferably, the plug 215 is disposed on an end of the telescopic column 213 away from the valve body 211, and the cavity inside the solenoid valve 21 is in a sealed state by the plug 215. The end portion of the telescopic column 213 far away from one end of the valve body 211 is provided with the plug 215, so that the preferred technical scheme of the embodiment can further play a role in fixing the telescopic column 213 and can also play a role in sealing, thereby preventing water in the cavity of the electromagnetic valve 21 from flowing out.

According to a preferred embodiment, the nozzle 22 is provided with water spray holes 221 therein, as shown in FIGS. 10-12. Preferably, the water jetting hole 221 communicates with the water flow passage 2112, and the washing water introduced into the water jetting hole 221 through the water flow passage 2112 is jetted from the water jetting hole 221 onto the washing cloth roll 3. More preferably, the water jet 221 comprises a first water jet 2211 and a second water jet 2212, wherein the first water jet 2211 is in communication with the water passageway 2112 and the first water jet 2211 has the same diameter as the water passageway 2112; the second water jetting hole 2212 is located at the end of the first water jetting hole 2211 far from the end of the water flow channel 2112, the diameter of the second water jetting hole 2212 is smaller than that of the first water jetting hole 2211, and the jetting angle α of the second water jetting hole 2212 is 100-120 °, as shown in fig. 11. It is particularly preferable that the injection angle α of the second water jetting hole 2212 is 110 °. It is particularly preferred that the diameter of the first water jetting hole 2211 is 0.5mm and the diameter of the second water jetting hole 2212 is 0.3 mm. As shown in fig. 8 or 9, in the preferred embodiment of the present invention, the washing water sprayed through the second water spray holes 2212 is in the range of 100 to 120 °, so that the washing water sprayed onto the washing cloth roll 3 is relatively uniform, and the problem of uneven wetting of the washing cloth roll 3 does not occur.

According to a preferred embodiment, the water spray assembly further comprises a locking cap 23 and a locking nut 24, as shown in fig. 10 or 12. Wherein, the locking cap 23 is used for fixing the spray head 22 on the electromagnetic valve 21; the lock nut 24 is provided at an end of the solenoid valve 21 and is used to fix the solenoid valve 21 to the base plate. The preferred technical scheme of this embodiment is through locking cap 23 with shower nozzle 22 be fixed in on the solenoid valve 21, through lock nut 24 with the solenoid valve 21 be fixed in on the bottom plate, can guarantee that the distance between water spray component and washing yardage roll 3 keeps invariable.

In the cleaning mechanism of the embodiment, because the electromagnetic valves 21 and the spray heads 22 of the water spray assemblies are connected in series, cleaning water is sprayed out from the spray heads 22, the distance between the water spray assemblies and the cleaning cloth roll 3 can be kept constant, and the water quantity and the pressure sprayed out by the spray ports of the water spray assemblies can be kept consistent; meanwhile, the spray head 22 of the embodiment is a precision machining part, so that the spray angle can be ensured to be unchanged; the on-off of the electromagnetic valve 21 can control the total cleaning water quantity, and can also independently control the water quantity of each spray head 22, so that the blanket cylinder is ensured to be cleaned as required, the problems of less water, incomplete cleaning, more water, paper breaking and the like are avoided, and the printing production efficiency is greatly improved.

Example 2

This example will explain the cleaning apparatus of the present invention in detail.

The cleaning device of the present embodiment includes the cleaning mechanism according to any one of the embodiments 1, as shown in fig. 7. The cleaning apparatus of the present embodiment has the cleaning mechanism according to any one of the technical solutions of embodiment 1, so that the cleaning apparatus of the present embodiment has advantages that the distance between the water spray modules and the cleaning cloth roll 3 can be kept constant, the amount of the cleaning water sprayed by each water spray module is uniform, and the water pressure is constant. That is, the cleaning device of the embodiment solves the technical problems that the spray rod 1 'is easy to deform, the distance from the spray hole 101' to the cleaning cloth roll 3 is unequal, and the water volume and the water pressure sprayed by each spray hole 101 'on the spray rod 1' are inconsistent in the prior art.

When the cleaning device of the embodiment is used for cleaning the upper rubber cylinder 4 and the lower rubber cylinder 5 of the printing machine, the problem that cleaning is not clean due to too little cleaning water and the problem that the paper 6 between the upper rubber cylinder 4 and the lower rubber cylinder 5 is broken due to too much cleaning water are avoided.

In the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.