JP2021024133A - Waste liquid recovery device and liquid discharge device - Google Patents

Abstract

To reduce damage to a cover member caused by a waste liquid tank being taken into/out.SOLUTION: A waste liquid recovery device has a tank housing part 2 which a waste liquid tank 1 for recovering a waste liquid can be taken into or out of and includes: a first slider member 3 which moves in conjunction with insertion/removal of the waste liquid tank 1; a second slider member 4 which is held in a manner that the second slider member can move relative to the first slider member 3 in a direction in which the second slider member moves close to or away from a waste liquid inlet part 12; and a cover member 6 which is held by the second slider member 4 and linearly moves between a position where the cover member covers the waste liquid inlet part 12 of the waste liquid tank 1 and a position where the cover member opens the waste liquid inlet part.SELECTED DRAWING: Figure 1

Description

The present invention relates to a waste liquid recovery device and a device for discharging a liquid.

For example, in a printing device as a device for discharging a liquid, waste liquid is generated by performing empty discharge (including flushing, purging, etc.) for discharging a liquid that does not contribute to printing as maintenance of the liquid discharge head.

Conventionally, by mounting the waste ink recovery box on the box attachment / detachment case, the posture change lever rotates around the shaft, and the ink disposal nozzle is positioned in the waste ink recovery box at a disposal position where waste ink can be discarded. A waste ink recovery device is known in which the ink discard nozzle changes its posture to a standby position when the waste ink recovery box is changed (Patent Document 1).

Japanese Unexamined Patent Publication No. 2000-127453

However, in the configuration disclosed in Patent Document 1, the posture change lever rotates around the shaft portion as the collection box is taken in and out, and the disposal nozzle is inserted into and removed from the collection box. There is a problem that the nozzles rub against each other.

The present invention has been made in view of the above problems, and an object of the present invention is to reduce damage to a covering member due to the loading and unloading of a waste liquid tank.

In order to solve the above problems, the waste liquid recovery device according to the present invention is
A waste liquid recovery device that can take in and out a waste liquid tank that collects waste liquid.
A slider member that moves in the loading / unloading direction as the waste liquid tank is loaded / unloaded, and
A covering member that comes into contact with the waste liquid intake port of the waste liquid tank and covers the waste liquid intake port is provided.
The covering member is provided so as to be movable between a position where the waste liquid intake port is covered and a position where the waste liquid intake port is opened in conjunction with the movement of the slider member.

According to the present invention, it is possible to reduce damage to the covering member due to the loading and unloading of the waste liquid tank.

It is a side view before the tank set of the waste liquid recovery apparatus which concerns on 1st Embodiment of this invention. It is also the side explanatory view in the tank set. Similarly, it is a side view after the tank set. Similarly, it is an exploded perspective explanatory view of each slider member. Similarly, it is a perspective explanatory view in the assembled state of each slider member. It is a perspective explanatory drawing which gives the explanation of the movement of the 1st slider member and the 2nd slider member which provide the operation explanation of the same embodiment. It is also a timing explanatory diagram. It is a side explanatory view provided for the explanation of the 2nd Embodiment of this invention. It is a side view before setting the waste liquid tank which is used for the explanation of 3rd Embodiment of this invention. Similarly, it is a side explanatory view of the state where the waste liquid tank is set. It is the schematic explanatory drawing of an example of the apparatus which discharges a liquid which concerns on this invention. It is a plane explanatory view of an example of the head unit of this apparatus.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The first embodiment of the present invention will be described with reference to FIGS. 1 to 6. FIG. 1 is a side explanatory view of the waste liquid recovery device according to the same embodiment before the tank set, FIG. 2 is a side explanatory view of the same tank set, and FIG. 3 is a side explanatory view of the waste liquid recovery device after the tank set. FIG. 4 is an exploded perspective explanatory view of each slider member, and FIG. 5 is a perspective explanatory view of each slider member in an assembled state.

The waste liquid recovery device 100 has a tank accommodating portion 2 capable of taking in and out a waste liquid tank 1 which is a waste liquid accommodating container for accommodating waste liquid.

The waste liquid tank 1 has a tank main body 11 for accommodating the waste liquid, and a waste liquid intake port portion 12 protruding from the tank main body 11 and forming a waste liquid intake port 12a leading into the tank main body 11.

The waste liquid tank 1 can be taken in and out of the tank accommodating portion 2 in the direction of arrow A (insertion / removal is possible), and the insertion direction is the arrow A1 direction and the removal direction is the arrow A2 direction.

In the tank accommodating portion 2, the first slider member 3 is movably arranged along the loading / unloading direction (arrow A direction) of the waste liquid tank 1.

Here, the side wall surface 2a of the tank accommodating portion 2 is provided with guide grooves 21 vertically along the direction of arrow A, and the first slider member 3 has a guide shaft 31 movably fitted into the guide groove 21. It is provided. On the other hand, an urging member 5 that urges the first slider member 3 in the direction of arrow A2 is arranged on the back side of the first slider member 3 (on the side opposite to the side where the waste liquid tank 1 is taken in and out).

As a result, by inserting the waste liquid tank 1 into the tank accommodating portion 2, the first slider member 3 moves backward in the direction of arrow A1 against the urging member 5, and the waste liquid tank 1 is taken out from the tank accommodating portion 2. As a result, the first slider member 3 moves forward in the direction of arrow A2 by the urging force of the urging member 5.

The covering member 6 that covers the waste liquid intake port 12 of the waste liquid tank 1 is held by the second slider member 4, which is a holding member.

The second slider member 4 is movably held and arranged on the front surface of the first slider member 3 (the surface facing the waste liquid tank 1) in the direction of approaching and separating from the waste liquid intake port portion 12. There is.

The second slider member 4 is provided with a guide shaft 41, and the guide shaft 41 is movably fitted into the cam groove 22 provided on the side wall surface 2a of the tank accommodating portion 2.

Here, as shown in FIGS. 4 and 5, the protrusion 43 provided on the second slider member 4 penetrates the guide groove 33 provided on the first slider member 3 to penetrate the back surface of the first slider member 3. The guide shaft 41 is held by the protrusion 43 protruding to the side and protruding to the back side.

Further, the second slider member 4 is provided with a guide shaft 42 that is movably fitted into the guide groove 32 provided in the first slider member 3. After passing through the guide groove 32, an E-ring or a retaining ring 44 (shown in FIGS. 4 and 5) is attached to the guide shaft 42, and the movement of the second slider member 4 with respect to the first slider member 3 in the arrow A direction. Is regulated.

As a result, in the second slider member 4, the guide shaft 41 is guided by the cam groove 22 as the first slider member 3 moves in the direction of the arrow A as the waste liquid tank 1 is inserted and removed, and the waste liquid intake port. It moves linearly in the direction of approaching the portion 12 (direction of arrow B1) and the direction of separation (direction opposite to the direction of arrow B1).

As a result, the covering member 6 moves linearly between the position of covering the waste liquid intake port 12 and the position of opening by moving the second slider member 4 in conjunction with the movement of the first slider member 3. It is provided so that it can be moved.

The covering member 6 and the second slider member 4 are integrally provided, and the covering member 6 itself is a straight line between the position of covering the waste liquid intake port 12 and the position of opening the first slider member 3. It can also be configured to be movable.

The covering member 6 holds a waste liquid discharge member (tube) 8 having a waste liquid discharge port portion 8a for discharging the waste liquid. Further, the covering member 6 is provided with an air hole 7.

Further, as the covering member 6, a member having high smoothness and a low friction coefficient such as Myra is preferable, but the covering member 6 is not limited to this. Further, the covering member 6 may come into contact with the entire area of the upper end portion of the waste liquid intake port portion 12 to seal the waste liquid intake port 12a, or the portion may have a predetermined gap between the cover member 6 and the portion. It may be in contact with the waste liquid intake port 12a to cover the waste liquid intake port 12a.

Further, as shown in FIG. 1, the waste liquid recovery device 1 has an opening / closing door 101 on the front side in the insertion direction (arrow A1 direction) of the waste liquid tank 1. The opening / closing door 101 is rotatable about a rotating shaft 102, and the waste liquid tank 1 is pressed toward the back side in the insertion direction by a protrusion 103 provided inside the opening / closing door 101. The protrusion 103 regulates that the waste liquid tank 1 is pushed back toward the front side in the insertion direction (arrow A2 direction) by the urging force of the urging member 5 after the insertion of the waste liquid tank 1 into the waste liquid recovery device 100 is completed.

Next, the operation of this embodiment will be described with reference to FIGS. 6 and 7. FIG. 6 is a perspective explanatory view for explaining the movement of the first slider member and the second slider member for explaining the same operation, and FIG. 7 is a timing explanatory view for the same.

In FIG. 7, the horizontal axis indicates the position of the first slider member 3 in the direction of arrow A1 of FIG. 6, and the vertical axis indicates the position of the second slider member 4 (position of the covering member 6) in the direction of arrow B1 of FIG. ing.

When accommodating the waste liquid tank 1 in the tank accommodating portion 2, by inserting the waste liquid tank 1 in the direction of the arrow A1 in FIG. 1, as shown in FIG. 1, a part of the front portion 1a of the waste liquid tank 1 is a second slider. The member 4 is brought into contact with the member 4. At this time, as shown in FIG. 7, the first slider member 3 is located at the initial position P0, and the second slider member 4 is located at the initial position P11.

By further pushing the waste liquid tank 1 in the direction of arrow A1 from this state, the first slider member 3 moves in the direction of arrow A1 as shown in FIG. 2, and the second slider member 3 moves with the movement of the first slider member 3. 4 also moves in the direction of arrow A1.

At this time, since the guide shaft 41 of the second slider member 4 is engaged with the cam groove 22, the guide shaft 41 moves downward according to the shape of the cam groove 22, so that the second slider member 4 is While moving in the direction of arrow A1, it moves in the direction of arrow B1 (FIG. 6) with respect to the first slider member 3, that is, in the direction close to the waste liquid intake port 12. Therefore, the covering member 6 also moves toward the waste liquid intake port 12.

That is, as shown in FIG. 7, when the first slider member 3 moves to the position P1, the guide shaft 41 of the second slider member 4 penetrates into the obliquely shaped portion of the cam groove 22, and the first slider member 3 Along with the movement, the second slider member 4 moves in a direction close to the waste liquid intake port 12.

Then, by further pushing the waste liquid tank 1 in the direction of the arrow A1, as shown in FIG. 3, the waste liquid tank 1 moves in the direction of the arrow A1 of the first slider member 3, and the guide shaft 41 of the second slider member 4 follows the cam groove 22. The second slider member 4 further moves in the direction closer to the waste liquid intake port portion 12.

As a result, the covering member 6 held by the second slider member 4 is pressed against the waste liquid intake port 12 of the waste liquid tank 1, and the waste liquid intake port 12 is sealed (capped) by the covering member 6.

That is, as shown in FIG. 7, when the first slider member 3 moves to the position P2, the second slider member 4 moves to the position P12 (solid line position in FIG. 6), and the covering member 6 moves the waste liquid in the waste liquid tank 1. It is pressed against the intake port 12 to seal the waste liquid intake port 12. Then, in this state, the first slider member 3 is pushed to the position P3.

In this way, when the waste liquid intake port 12 of the waste liquid tank 1 is sealed with the cover member 6, the cover member 6 is configured to linearly advance and retreat (move) with respect to the waste liquid intake port 12, so that the cover member 6 is covered. It is possible to reduce the possibility that the member 6 rubs against the waste liquid intake port portion 12. As a result, damage to the covering member 6 over time is reduced.

Then, the waste liquid discharge port 8a faces the waste liquid tank 1 in a state where the waste liquid intake port 12 of the waste liquid tank 1 is sealed with the covering member 6, so that the waste liquid discharge port 8a is not exposed to the external environment.

As a result, when collecting the waste liquid of a liquid that is easily dried such as a high-viscosity liquid, even if the waste liquid that remains without dripping from the waste liquid discharge port 8a into the waste liquid tank 1 is generated, the drying of the residual waste liquid is suppressed. Therefore, clogging of the waste liquid discharge port 8a is suppressed.

Next, the second embodiment of the present invention will be described with reference to FIG. FIG. 8 is a side explanatory view for explaining the embodiment.

In the present embodiment, the installation base 23 for installing the accommodating portion 2 is provided. The installation base 23 is inclined in a direction in which the weight of the waste liquid tank 1 is applied so as to push the first slider member 3 in the direction of arrow A1.

As a result, it is possible to prevent the set position of the waste liquid tank 1 from shifting.

Next, the third embodiment of the present invention will be described with reference to FIGS. 9 and 10. FIG. 9 is a side explanatory view before setting the waste liquid tank used for the description of the embodiment, and FIG. 10 is a side explanatory view of a state in which the waste liquid tank is also set.

In the present embodiment, the waste liquid receiving member 9 facing the waste liquid discharge port portion 8a of the covering member 6 is arranged. When the waste liquid tank 1 is not set, the waste liquid receiving member 9 is located below the waste liquid discharge port portion 8a of the covering member 6, as shown in FIG. Then, when the waste liquid tank 1 is set, as shown in FIG. 9, the covering member 6 moves from the position facing the waste liquid receiving member 9 to the position covering the waste liquid tank 1.

As a result, even if the waste liquid drips from the waste liquid discharge port 8a when the waste liquid tank 1 is replaced, the waste liquid can be received by the waste liquid receiving member 9, so that the waste liquid tank 1 and its surroundings that can be touched by the user can be received. It is possible to prevent the tank accommodating portion 2 from becoming dirty with waste liquid.

Next, an example of the device for discharging the liquid according to the present invention will be described with reference to FIGS. 11 and 12. FIG. 11 is a schematic explanatory view of the device, and FIG. 12 is a plan explanatory view of an example of the head unit of the device.

The printing device 500, which is a device for discharging this liquid, includes a carry-in means 501 for carrying in the continuum 510, a guide transport means 503 for guiding and transporting the continuum 510 carried in from the carry-in means 501 to the printing means 505, and a continuous body. It includes a printing means 505 that discharges a liquid to 510 to form an image, a drying means 507 that dries the continuum 510, and a unloading means 509 that carries out the continuum 510.

The continuum 510 is sent out from the original winding roller 511 of the carrying-in means 501, guided and conveyed by the rollers of the carrying-in means 501, the guiding and conveying means 503, the drying means 507, and the carrying-out means 509, and is guided and conveyed by the winding roller 591 of the carrying-out means 509. It is wound up at.

The continuum 510 is conveyed by the printing means 505 facing the head unit 550 and the head unit 555, an image is formed by the liquid discharged from the head unit 550, and the processing liquid discharged from the head unit 555. Post-processing is done.

Here, the head unit 550 is provided with, for example, full-line head arrays 551A, 551B, 551C, and 551D for four colors from the upstream side in the transport direction (hereinafter, referred to as "head array 551" when colors are not distinguished). Is placed.

Each head array 551 is a liquid discharging means, and discharges black K, cyan C, magenta M, and yellow Y liquids to the conveyed continuum 510, respectively. The types and numbers of colors are not limited to this.

The head array 551 is, for example, a liquid discharge head (which is also simply referred to as a “head”) 100 arranged in a staggered pattern on the base member 552, but is not limited to this.

The waste liquid recovery device 100 according to the present invention is provided in the printing means 505.

As a result, the waste liquid recovery device 100 can recover the waste liquid for a long period of time without causing clogging of the waste liquid discharge port 8a.

In this case, the waste liquid collected by the waste liquid recovery device 100 includes, for example, waste liquid of ink or treatment agent generated by empty discharge (including flushing, purging, etc.) that discharges a liquid that does not contribute to printing as maintenance of the liquid discharge head. is there.

The printing device 500 may be a device that prints on sheet paper, that is, cut paper, instead of a device that prints on a continuous body.

Further, in the present application, image formation, recording, printing, printing, printing, modeling, etc. are all synonymous terms.

1 Waste liquid tank 2 Tank housing part 3 1st slider member 4 2nd slider member 6 Covering member 8 Waste liquid discharge port member 9 Waste liquid receiving member 12 Waste liquid intake port 22 Cam groove 100 Waste liquid recovery device 500 Printing device (device that discharges liquid) )
550 head unit

Claims (9)

A waste liquid recovery device that can take in and out a waste liquid tank that collects waste liquid.
A slider member that moves in the loading / unloading direction as the waste liquid tank is loaded / unloaded, and
A covering member that comes into contact with the waste liquid intake port of the waste liquid tank and covers the waste liquid intake port is provided.
The waste liquid recovery device is characterized in that the covering member is movably provided between a position for covering the waste liquid intake port and a position for opening the waste liquid intake port in conjunction with the movement of the slider member. The covering member is held by a holding member that can move in the direction of approaching and separating from the waste liquid intake portion.
The waste liquid recovery device according to claim 1, wherein the holding member is held by the slider member. The waste liquid recovery device according to claim 2, wherein the holding member moves linearly. The waste liquid recovery device according to claim 2, wherein the holding member is guided by a cam groove and moves. The waste liquid recovery device according to any one of claims 1 to 4, wherein a waste liquid discharge port portion for discharging the waste liquid is arranged in the waste liquid tank so as to penetrate the covering member. The waste liquid recovery device according to claim 5, further comprising a waste liquid receiving member arranged below the waste liquid discharge port when the covering member is in a position to open the waste liquid intake port. A device for discharging a liquid, which comprises the waste liquid recovery device according to any one of claims 1 to 6. The device for discharging the liquid according to claim 7, wherein the waste liquid of ink that does not contribute to printing is collected in the waste liquid tank. The device for discharging the liquid according to claim 7 or 8, wherein the waste liquid of the treatment liquid is collected in the waste liquid tank.

Images