JP4058323B2 - Inkjet recording device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a charge control type ink jet recording apparatus, and more particularly to the structure, configuration, and material of the entire apparatus main body excluding a print head for printing on a recording material.
[0002]
[Prior art]
In the conventional ink jet recording apparatus disclosed in Japanese Patent Laid-Open No. 7-76096, the drive source part of the electromagnetic valve and the pump is disposed in the space on the back side of the apparatus by providing a partition plate inside the apparatus. When performing maintenance work such as replacement, the structure is very difficult to access. In other products, there is an example in which the internal partition plate is formed in a door shape, but all have a structure that opens in the same direction as the door on the housing side. There were cases where the door could not be opened sufficiently to perform maintenance work.
[0003]
In the conventional ink jet recording apparatus disclosed in Japanese Patent Laid-Open No. 7-76096, the cooling means in the apparatus sucks the outside air by installing a cooling fan in the space where the electromagnetic valve and the pump drive source are arranged. And although the structure which sends in air to the control part area of apparatus upper space is taken, in this structure, the route through which a wind flows is limited and it is possible that cooling efficiency becomes partially low. Also, as seen in other products, a cooling fan is installed on a partition plate that divides the inside of the device into upper and lower parts, and air is sucked from the upper space (control part) and exhausted from the lower space (ink circulation part). Then, there is a demerit that the cooling efficiency is greatly reduced unless the entire periphery of the partition plate divided vertically is sealed or an obstacle is not installed in the route to the downstream exhaust port.
[0004]
Next, when an operation unit for displaying and inputting information is provided on the front side of the apparatus, it is desirable to face obliquely upward from the viewpoint of visibility and operability, and there are examples that are actually adopted, There is no example in which the operation unit has a door structure, and it is difficult to access internal components from the front side of the apparatus.
In addition, as the material of the device exterior parts, general-purpose stainless steel plates and plastics have been used, but no grades with enhanced antibacterial specifications have been used.
[0005]
[Patent Document 1]
JP-A-7-76096 [0006]
[Problems to be solved by the invention]
The following are examples of problems in the conventional technology.
1) When a structure in which the inside of the apparatus is divided by a partition plate is adopted, it becomes difficult to access the components arranged behind the partition. In addition, when the internal partition plate has a door structure for easy access, there is a problem that the work space is reduced or the center of gravity moves easily when the door is opened, resulting in an unbalance.
2) The part that has an operation part for displaying and inputting information of the device and also has a function as a door for opening and closing the inside of the device with respect to the outside is the front side of the device so far. The liquid crystal display has poor visibility and the input operation is very difficult to operate because it is attached to a vertical surface.
3) When the internal space of the apparatus is divided into a plurality of spaces, even if it is attempted to cool the internal temperature of the apparatus using a cooling fan, the flow of wind is likely to be hindered, and the cooling efficiency is reduced in whole or in part. Therefore, it is necessary to use a cooling fan with a large output or multiple cooling fans, which is a cause of cost increase, and a configuration that can efficiently cool the entire inside of the device with a low output cooling fan. It has been sought. Furthermore, if there is a space where a heat source such as a power source or a substrate is located upstream of the wind flow and an ink holding container or piping is installed on the downstream side of the wind, the heat is used to remove ink. As a result, there is a problem that the ambient temperature that can be handled by the apparatus is lowered. Conversely, if a flow of air is created from the space where the ink holding container or piping is installed toward the space where the heat source such as the power supply or the substrate is located, the air mixed with the solvent component touches the heat source, which is a safety issue. Will occur.
4) Inkjet recording devices are often used in food, beverages, chemicals, and other industries that require consideration for hygiene. However, conventional stainless steel plates or plastics have been used for the exterior parts of the devices. So far, there have been no examples of using special materials with enhanced antibacterial properties.
[0007]
[Means for Solving the Problems]
The present invention relates to a nozzle for ejecting ink sucked out by a pump from an ink holding container, and an ink jet recording apparatus for recording by adhering ink to a recording material by charging and deflecting ink particles ejected from the nozzle. The main body for supplying ink to the nozzle includes a partition plate that divides the inside of the main body into upper and lower portions, a first door that separates the upper space divided by the partition plate from the outside of the main body, and the partition plate. A second door that separates the divided lower space from the outside of the main body, and a third door that can be opened and closed to divide the lower space, wherein the first door displays information and In one space of the lower space that has an input function part and is divided by the third door, a pipe for conveying the ink holding container and ink and solvent is arranged, and is divided by the third door. Of the lower space The square space is located a pump and a solenoid valve, wherein the third door, the third door in disposed in the divided another space the pump and the solenoid valve mounted in the lower space was and the manifold is fixed, the first door is opened horizontal direction, the second door opens downward or horizontal direction, said first door together with the third door is opened in the horizontal direction It is characterized by opening in a different direction.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0009]
First, the overall configuration will be described with reference to FIG. FIG. 1 is a schematic cross-sectional view of a left side surface of an ink jet recording apparatus main body portion excluding a print head for printing on a printing material. The inside of the apparatus is divided up and down by the partition plate 1.
Further, the lower space is divided into front and rear by the partition door 2. The control area 3 is a space corresponding to the upper part in the apparatus indicated by a broken line, and electric components such as the power supply 4 and the control board 5 are arranged.
[0010]
The ink area 6 is a space corresponding to the lower side and the front side of the apparatus indicated by a broken line, and the ink holding container 7 and other parts such as a piping tube and a filter that contain ink and a solvent are disposed therein.
[0011]
The drive system area 8 is a space corresponding to the back side in the lower part of the apparatus indicated by a broken line, and drive system mechanical parts such as a pump 9 and an electromagnetic valve 10 are arranged. Further, drive system mechanical parts such as the pump 9 and the electromagnetic valve 10 are attached to a manifold plate 11 integrally fixed to the partition door 2, and the ink circulation system has a unit structure. Therefore, the partition system 2 and the circulation system driving parts of the pump 9 and the solenoid valve 10 have an integral structure via the manifold plate 11.
[0012]
Control area 3 is opened and closed with respect to the outside of the device by the operation panel 12, the ink area 6 is opened and closed against the outside of the device by full Rontodoa 13.
[0013]
FIG. 2 is a perspective view showing a state in which the operation panel 12 and the front door 13 are closed. The operation panel 12 is fixed to the cabinet when the operation panel 12 is closed by a fixing knob A14, and is opened and closed with a hinge A15 as a fulcrum. . The front door 13 is fixed to the cabinet by the fixing knob B16 when closed, and is opened and closed with the hinge B17 as a fulcrum.
[0014]
FIG. 3 shows a state in which the operation panel 12 and the front door 13 are opened, and the partition door 2 is also opened. In this example, the upper operation panel 12 is opened in the horizontal left direction, and the partition door 2 is opened in the horizontal right direction. If these two doors open in the same direction, the center of gravity of the entire apparatus moves in the direction of the opened door, and the entire apparatus becomes very unbalanced. As shown in the figure, the two doors open in opposite directions, so that the center of gravity moves slightly to the front side, but the right and left direction is balanced.
[0015]
Although the front door 13 is opened downward, if there is an obstacle in the same direction as the partition door 2 and the front door 13 is opened, the front door 13 cannot be opened sufficiently and the partition is accordingly opened. The door 2 cannot be opened until the maintenance work can be easily performed. Therefore, the problem can be solved by adopting a structure in which the front door 13 opens in a different direction with respect to the partition plate 1.
[0016]
Next, as can be seen in FIG. 2, the operation panel 12 is in a closed state and is directed obliquely upward. In this example, a liquid crystal 18 with a touch panel is integrally attached to the operation panel 12. Since the liquid crystal 18 with a touch panel for displaying and inputting information faces obliquely upward , the visibility of the display contents is remarkably improved, and the operation of inputting information is greatly facilitated. In the case of adopting such a configuration, the hinge 15 should be a hinge that generates high torque in order to prevent the operation panel 12 from being held at an angle and to be suddenly closed. Is desirable.
[0017]
Next, a method for cooling the inside of the apparatus will be described. As shown in FIG. 4, the cooling fan 19 is installed on the rear side of the apparatus and in the drive system area 8. At this time, as shown by the curved arrow in FIG. The air inlet 20 is arranged on the side of the apparatus and in the control area 3 in a louver shape. Further, the partition plate 1 is provided with a ventilation hole 21. Three-dimensionally, the arrangement is easily understood with reference to FIG. With such an arrangement, the flow of wind follows the route of outside the apparatus → intake port 20 → control area 3 → ventilation hole 21 → drive system area 8 → cooling fan 19 → outside the apparatus. When the components are arranged in the three areas as described above, the flow of the wind is likely to be hindered because the inside of the apparatus is partitioned. Therefore, it is necessary to design the route of the wind flow so as to be adapted to the position that is a heat source and the position that is disposed on the part that has little margin for the temperature rise. In this embodiment, the cooling fan 19 is arranged such that the wind flows through the control area 3 where the power source and the substrate as the heat source are arranged, and the drive system area 8 where the driving parts as the heat source such as a pump and a solenoid valve are arranged. The air inlet 20 and the air vent 21 were arranged. In addition, first of all, it can be mentioned that the ink area 6 without a heat source is arranged so that the air heated by the heat source in the control area 3 does not flow. Secondly, the reason for not arranging the cooling fan 19 on the intake side and blowing the air of the cooling fan 19 into the inside of the apparatus is as follows. The cooling unevenness which a site | part appears may be mentioned.
[0018]
Finally, regarding the material of the apparatus exterior parts, in this embodiment, the operation panel 12 is made of antibacterial plastic, and the front door 13 and the cabinet 22 are made of antibacterial stainless steel plate. This is characterized by the fact that it is applied to the exterior of the device that the operator of the device touches daily.
[0019]
【The invention's effect】
As described above, according to the present invention, the following effects can be exhibited.
1) Even if the inside of the apparatus is divided by function, an apparatus with good maintainability can be provided.
2) When the operation panel unit serving as a display and input unit has a door structure, and the maintenance performance is improved, the operation panel can have a structure with good visibility and operability.
3) Since the inside of the apparatus can be efficiently cooled, it is possible to provide a low-cost and highly reliable apparatus.
4) By providing the device exterior part with antibacterial properties, it is possible to provide a device that matches the trends in the user's industry.
[0020]
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of the left side surface of an ink jet recording apparatus according to an embodiment of the present invention.
FIG. 2 is a perspective view of an ink jet recording apparatus with a door closed according to an embodiment of the present invention.
FIG. 3 is a perspective view of the ink jet recording apparatus in a door open state according to an embodiment of the present invention.
FIG. 4 is a cross-sectional view of the left side surface of the ink jet recording apparatus showing a flow by a cooling fan according to an embodiment of the present invention.
[Explanation of symbols]
1 ... Specification Setsuban, 2 ... partition door, 3 ... control area, 4 ... power, 5 ... substrate, 6 ... ink area, 7 ... ink retaining container, 8 ... drive system area, 9 ... manifold plate, 10 ... pump, DESCRIPTION OF SYMBOLS 11 ... Solenoid valve, 12 ... Operation panel, 13 ... Front door, 14 ... Fixed knob A, 15 ... Hinge A, 16 ... Fixed knob B, 17 ... Hinge B, 18 ... Liquid crystal with a touch panel, 19 ... Cooling fan, 20 ... Inlet, 21 ... vent hole, 22 ... cabinet.

Claims (4)

In a charge control type ink jet recording apparatus that records information by ejecting ink particles from a nozzle body and forming ink particles, and charging and deflecting the ink particles to adhere to a recording material .
The main body that supplies ink to the nozzles is divided by a partition plate that divides the inside of the main body into upper and lower portions, a first door that separates the upper space divided by the partition plate and the outside of the main body, and the partition plate. A second door that separates the lower space from the outside of the main body, and a third door that can be opened and closed to divide the lower space, and the first door has an information display and input function. has a part, to one space of the third door in divided the lower space is arranged a pipe for conveying said ink retaining container and the ink and solvent, divided by the third door the A pump and a solenoid valve are disposed in the other space of the lower space, and the pump disposed in the other space divided by the third door of the lower space is disposed in the third door. manifold solenoid valve is mounted is fixed, the first door is opened horizontal direction , The second door opens downward or horizontal direction, the third door is an ink jet recording apparatus characterized by open in a direction different from said first door is opened in the horizontal direction. The inkjet recording apparatus according to claim 1, wherein
Before Symbol Display and input function unit, an ink jet recording apparatus is provided so as to face obliquely upward in a state where the closing the first door. The inkjet recording apparatus according to claim 1, wherein
Control parts for controlling the ink ejected from the nozzles are disposed in the upper space, and are provided in the inlet plate communicating with the upper space, the partition plate, and the pumps in the upper space and the lower space. And a cooling fan that exhausts outside the main body from the space in which the pump and the electromagnetic valve in the lower space are arranged, and a ventilation hole that communicates with the space in which the electromagnetic valve is arranged .   2. The ink jet recording apparatus according to claim 1, wherein an antibacterial material is used as a material of the device exterior part.

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