JP2021133619A - Printer - Google Patents

Abstract

To provide a printer which can perform printing with the excellent accuracy by easily adjusting the inclination of a carriage.SOLUTION: A printer comprises: a movable body 410 which includes a printing head 41 that performs a printing operation; and a pair of guide shafts 444 which extends in the movement direction of the movable body 410 to guide the movable body 410 and has base point regulation parts 445 for regulating the base point position being the reference of the position of the movable body 410. At least one of the pair of guide shafts 444 includes an adjustment part 50 which mechanically performs adjustment so as to align the positions of the base point regulation parts 445 in the movement direction of the movable body 410 in the pair of guide shafts 444.SELECTED DRAWING: Figure 3

Description

The present invention relates to a printing apparatus.

In a printing device, in a configuration in which a carriage on which a print head, which is a printing unit, is mounted is moved while being guided on both sides by a pair of shafts, when the carriage is assembled to the shaft in a state of being tilted with respect to a printing target, when printing is performed. The print position will shift, and a high-definition finish will not be obtained.

Conventionally, the movement of the carriage is controlled with reference to a predetermined origin position, and as a method of detecting the origin position, the current value of the drive motor when the stopper portion of the carriage hits a predetermined abutting portion is used. It is known that the origin position is detected by detecting an increase or detecting that the motor that operates the print head is driven by a predetermined input power in addition to such a change in the current value of the drive motor. (For example, refer to Patent Document 1 etc.)

When the carriage is guided by a pair of shafts, the position where the stopper portion of the carriage abuts may shift to the left or right and the carriage may tilt. In this case, it is conceivable to make fine adjustments by providing a spacer at the abutting portion of the stopper portion to correct the inclination / displacement.

Japanese Unexamined Patent Publication No. 2011-110841

However, it takes a lot of time and effort to correct the inclination of the carriage while finely adjusting the thickness of the spacer provided at the abutting portion and adjust it in the correct direction.
Further, since it is necessary to separately prepare a spacer for adjusting the position of the abutting portion, there is a problem that not only the work cost but also the component cost is incurred.

The present invention has been made in view of the above circumstances, and has an advantage of providing a printing apparatus capable of easily adjusting the inclination of the carriage to realize printing with good accuracy. ..

In order to solve the above problems, the printing apparatus of the present invention is used.
A mobile body including a print operation unit that performs a print operation,
A pair of shafts extending in the moving direction of the moving body to guide the moving body and having a base point defining portion that defines a base point position that serves as a reference for the position of the moving body.
Have,
At least one of the pair of shafts
The pair of shafts is characterized by including an adjusting portion that mechanically adjusts the position of the base point defining portion in the moving direction of the moving body.

According to the present invention, it is possible to easily adjust the inclination of the carriage to realize printing with good accuracy.

It is a perspective view which looked at the main part of the printing apparatus in this Embodiment from the front diagonally upper side. FIG. 5 is a perspective view showing a state in which the carriage is moved forward from the state shown in FIG. 1 and a state in which the carriage is tilted. It is an enlarged perspective view of the base point definition part of the shaft and its periphery in this embodiment, (a) shows the state before adjustment, and (b) is after adjustment which adjusted to move the shaft forward of the apparatus. It shows the state. It is a block diagram of a main part of this embodiment.

An embodiment of the printing apparatus according to the present invention will be described with reference to FIGS. 1 to 4.
Although various technically preferable limitations for carrying out the present invention are attached to the embodiments described below, the scope of the present invention is not limited to the following embodiments and illustrated examples.
Further, in the following embodiment, the case where the printing device 1 is a nail printing device that prints on a human nail will be described as an example, but the printing device 1 in the present invention guides a moving body by two shafts. Any printing apparatus having a configuration may be used, and the present invention is not limited to the nail printing apparatus. Further, in the present embodiment, a case where the printing device 1 prints on the fingernail of the hand as a printing target is taken as an example, but when the printing device 1 in the present invention is a nail printing device, the printing target is the hand. The printing target is not limited to the nails of the toenails, and for example, the nails of the toenails may be printed. In addition, objects other than nails, such as the surface of nail tips and various accessories, may be printed.

<< Overall configuration of printing equipment >>
1 and 2 are perspective views of the printing apparatus according to the present embodiment as viewed from diagonally upper front. FIG. 1 shows a state in which a carriage 431 equipped with a print head 41, which will be described later, is arranged behind the device, and FIG. 2 shows a state in which the carriage 431 moves forward in front of the device.
In this specification, left and right and front and back refer to the directions shown in FIGS. 1 and 2. Further, the X direction and the Y direction refer to the directions shown in FIGS. 1 and 2.
FIG. 1 shows a case where the carriage 431 is arranged parallel to the left-right direction (X direction) orthogonal to the front-rear direction (Y direction) of the printing apparatus 1. On the other hand, in FIG. 2, the carriage 431 is tilted from an axis parallel to the left-right direction (X direction) of the printing device 1 (in a state where the right side of the carriage 431 in FIG. 2 is slightly forward of the left side). ) Indicates the case where it is arranged.

As shown in FIGS. 1 and 2, the printing apparatus 1 includes a base 10 and a chassis 11 assembled on the base 10.
Although not shown in FIGS. 1 and 2, the printing apparatus 1 is a housing (exterior) that covers the base 10 shown in FIGS. 1 and 2 and each part of the apparatus arranged on the base 10. Case) is provided. The specific shape and configuration of the housing are not particularly limited.
A finger (not shown) having a claw to be printed in the present embodiment is held in an area suitable for printing at a substantially central portion in the left-right direction (X direction) on the front side of the device in the base 10. A finger holding portion 20 is arranged.

The finger holding portion 20 has an opening 21 on the front surface side of the device. A finger fixing member 22 is provided inside the finger holding portion 20. The finger fixing member 22 pushes up and supports the finger inserted through the opening 21 from below, and is made of, for example, a flexible resin or the like.
The upper surface of the finger holding portion 20 and the front side (front side in the Y direction) of the device is a finger presser 23 that prevents the fingers from rising and regulates the position of the fingers in the upward direction.
Further, the upper surface of the finger holding portion 20 and the back side (rear side in the Y direction) of the device is an open window portion 24. The fingernail inserted into the finger holding portion 20 is exposed from the window portion 24.
The finger is supported from the lower side by the finger fixing member 22, and the upper side of the finger is pressed by the finger presser 23, so that the position of the fingernail surface (print target surface) exposed from the window portion 24 in the height direction is printed. It is positioned at a position suitable for printing by the unit 40.

In the present embodiment, when the line along the Y direction parallel to the center line in the X direction of the printing apparatus 1 is the vertical line Vl and the line orthogonal to the center line in the X direction is the horizontal line Hl, it is parallel to Hl. Alignment line Rl is provided on the surface (upper surface) of the finger presser 23. The alignment line Rl may be provided by printing, may be a ruled line, or the like.

The printing device 1 is provided with a printing unit 40 for printing on the nail to be printed.
The printing unit 40 includes a printing head 41 which is a printing operation unit that performs a printing operation.
The print head 41 faces, for example, an ink cartridge (not shown) corresponding to yellow (Y; YELLOW), magenta (M; MAGENTA), and cyan (C; CYAN) inks and a print target (claw surface) in each ink cartridge. This is an ink cartridge integrated head in which an ink ejection portion (not shown) provided on the surface to be printed is integrally formed.
In the ink ejection portion, ejection ports (ink ejection ports, not shown) of a nozzle array including a plurality of nozzles for ejecting ink of each color are formed in a row. The print head 41 is an inkjet head of an inkjet type that atomizes ink and sprays ink directly from the ink ejection surface (ink ejection port on the ink ejection surface) onto the surface of the nail to perform printing. Further, in the present embodiment, the print head 41 is controlled by the control unit 31 (see FIG. 4) so as to perform, for example, multi-pass type single-ring printing, so that delicate printing can be performed on the surface of the nail or the like. It is configured.
The print head 41 is not limited to the one that ejects the above three colors of ink. An ink cartridge for storing other ink and an ink ejection port may be provided.

Further, the printing unit 40 of the printing device 1 includes a head moving mechanism 42 (see FIG. 4) for moving the printing head 41.
The printing device 1 of the present embodiment performs a printing operation while moving the print head 41 in the X direction (X direction in FIG. 1, the left-right direction of the device) and the Y direction (Y direction in FIG. 1, the front-back direction of the device). ..
Therefore, the head moving mechanism 42 moves the X-direction moving mechanism 43 for moving the print head 41 in the left-right direction (X direction) of the device and the Y for moving the print head 41 in the front-rear direction (Y direction) of the device. It has a two-axis configuration with a directional movement mechanism 44.

The print head 41 is attached to the carriage 431 of the X-direction moving mechanism 43 while being supported by the holder 412.
The print head 41 and the carriage 431 constitute the moving body 410 according to the present embodiment.
The carriage 431 extends in the left-right direction (X direction) of the apparatus, and shaft insertion portions 435 are provided on both sides of the carriage 431 in the extending direction (the left-right direction of the apparatus, the X direction in the present embodiment), respectively. (See FIGS. 3A and 3B) and a belt clip 436 (see FIGS. 1 and 2) are provided.
The shaft insertion portion 435 has a through hole (insertion hole 435a) (not shown) that penetrates in the front-rear direction (Y direction) of the device, and the Y-direction moving mechanism 44 described later is provided in the through hole (insertion hole 435a). A pair of shafts (guide shafts 444, which will be described later) are inserted.
The belt clip 436 is locked to the drive belt 443, which will be described later. As a result, the carriage 431 moves according to the drive of the drive belt 443.

Pulleys (not shown) are provided at both ends of the carriage 431 in the extending direction. A drive belt 433 is wound around the pair of pulleys. Further, in the carriage 431, a shaft (hereinafter referred to as "guide shaft 434") extending in the left-right direction (X direction) of the device in parallel with the drive belt 433 is provided.
In a normal state, the carriage 431 and the drive belt 433 and the guide shaft 434 provided on the carriage 431 are arranged so that their extending directions are parallel to the horizontal line Hl.

One of the pulleys is a drive pulley that operates in the forward and reverse directions, and the X-direction moving mechanism 43 includes an X-direction moving motor 430 (see FIG. 4) that operates the drive pulley.
The print head 41 is locked to the drive belt 433, and can be moved in the left-right direction (X direction) of the device along the horizontal line Hl while being guided by the guide shaft 434 by the operation of the drive belt 433.
In the present embodiment, a drive belt 433 wound around a pair of pulleys provided in the carriage 431 and the carriage 431, an X-direction moving motor 430, and a guide shaft 434 provided in parallel with the drive belt 433 are used. The X-direction moving mechanism 43 is configured.

The Y-direction moving mechanism 44 is a shaft provided in parallel with a pair of pulleys 441 and 442 provided on the base 10 or the chassis 11 on the base 10, a drive belt 443 and a drive belt 443 bridged thereto. (Hereinafter referred to as "guide shaft 444").
The pulleys 441 and 442 are attached to both ends of the interlocking shaft 447 extending in the left-right direction (X direction) of the device. One of the pulleys 441 and 442 is a drive pulley that operates in the forward and reverse directions, and the Y-direction moving mechanism 44 includes a Y-direction moving motor 440 (see FIG. 4) that operates the drive pulley. .. When one of the pulleys 441 and 442 is driven to rotate, the other pulley that is interlocked via the interlocking shaft 447 is interlocked with this movement so that the left and right sides operate at the same timing.

In the present embodiment, the guide shaft 444 extends in the moving direction (Y direction in the present embodiment) of the print head 41 and the carriage 431 which are the moving bodies 410 to guide the moving body 410, and is the present embodiment. Then, they are provided on the left and right sides of the printing device 1, respectively.
The carriage 431 constituting the moving body 410 is locked to the drive belt 443, and moves in the front-rear direction (Y direction) of the device along the vertical line Vl while being guided by the guide shaft 444 by the operation of the drive belt 443. It is possible.

The pair of guide shafts 444 have a base point defining portion 445 that defines a base point position that serves as a reference for the position of the moving body 410 (in this embodiment, the print head 41 and the carriage 431).
In the present embodiment, the base point defining portion 445 defines the base point position by abutting the moving body 410.
Specifically, the base point defining portion 445 of the present embodiment is a portion formed having an outer diameter larger than the outer diameter of the guide shaft 444, and cannot pass through the insertion hole 435a of the shaft insertion portion 435.
The carriage 431 constituting the moving body 410 is provided with an abutting portion that abuts against the base point defining portion 445. Specifically, the surface of the shaft insertion portion 435 on the front end side in the front-rear direction (Y direction) of the device is the abutting surface 435b as the abutting portion that abuts on the base point defining portion 445.
Since the base point defining portion 445 cannot pass through the insertion hole 435a of the shaft insertion portion 435, it abuts on the abutting surface 435b which is the front end surface of the shaft insertion portion 435 when the carriage 431 moves to the front of the device. This abutting position is the base point position.

As described above, the printing device 1 of the present embodiment is a two-axis printing device that prints while the printing head 41 moves appropriately in the X and Y directions, and is in the X direction when the printing head 41 moves. If the axis and the axis in the Y direction are not orthogonal to each other, precise printing cannot be performed.
The moving body 410 including the print head 41 is guided by a pair of left and right guide shafts 444 and moves in the Y direction, but the moving body 410 is assembled at an angle tilted with respect to the guide shaft 444 parallel to the vertical line Vl of the device. If it is attached, the moving body 410 moves in the Y direction in an inclined state, and the axis in the X direction and the axis in the Y direction when the print head 41 moves are not orthogonal to each other.
Therefore, in order to maintain the operating accuracy of the printing device 1 at a constant quality, the assembly direction of the moving body 410 is adjusted so that the axis in the X direction is orthogonal to the axis in the Y direction, and it is confirmed whether there is any inclination. There is a need to.

Therefore, in the present embodiment, adjustments are mechanically adjusted so that the positions of the base point defining portions 445 in the moving direction of the moving body 410 (the Y direction, which is the front-rear direction of the device in the present embodiment) of the pair of guide shafts 444 are aligned. A portion 50 is provided on the guide shaft 444.
The adjusting portion 50 may be provided on at least one of the pair of guide shafts 444. In the present embodiment, adjusting portions 50 are provided on the front end sides of the left and right guide shafts 444, respectively.

《Structure of adjustment part》
The configuration of the adjusting unit 50 in the present embodiment will be described with reference to FIGS. 3 (a) and 3 (b).
3 (a) and 3 (b) are enlarged perspective views of the base point defining portion 445 of the shaft (guide shaft) in the present embodiment and its periphery.
As shown in FIGS. 3A and 3B, one end side of the guide shaft 444 (the front end side in the Y direction, which is the front-rear direction of the device in this embodiment) is composed of a part of the chassis 11. It is supported by the shaft support portion 111. In the present embodiment, a part of the front end side of the chassis 11 extending along the Y direction on the front end side in the Y direction is bent along the X direction, which is the left-right direction of the device, to form a substantially L shape. The portion of the chassis 11 along the X direction is the shaft support portion 111.

An insertion hole 112 through which the front end side of the guide shaft 444 is inserted is provided at a position of the shaft support portion 111 corresponding to the front end side of the guide shaft 444.
In the present embodiment, a male screw is formed around the shaft on the front end side of the guide shaft 444 to form the male screw portion 51. A female screw portion 113 having a female screw that meshes with the male screw of the male screw portion 51 on the guide shaft 444 side is formed on the inner circumference of the insertion hole 112.
The adjusting portion 50 has a screw feed structure that adjusts the amount of protrusion of the guide shaft 444 protruding from the insertion hole 112 by rotating the male screw portion 51 side or the female screw portion 113 side around the axis of the guide shaft 444. Have.
In the present embodiment, by rotating the guide shaft 444 on which the male screw portion 51 is formed around the axis, the amount of protrusion of the guide shaft 444 protruding from the insertion hole 112 is adjusted, and the position of the base point defining portion 445 of the guide shaft 444 is adjusted. Can be adjusted.
The adjusting unit 50 of the present embodiment has a structure for continuously adjusting the position of the base point defining unit 445 in the moving direction of the moving body 410 (in the present embodiment, the print head 41 and the carriage 431). .. As a result, the positional deviation of the moving body 410 can be adjusted steplessly, and it is also possible to adjust, correct, and eliminate the minute deviation.

The guide shaft 444 of the present embodiment includes a jig locking portion 52 for locking a jig for rotating the guide shaft 444 around the axis at the shaft end portion 446 on the side where the adjusting portion 50 is provided. ing.
The shape and configuration of the jig locking portion 52 are not particularly limited, but for example, the jig locking portion 52 is a groove portion formed linearly as shown in FIGS. 3 (a) and 3 (b). A flat-blade screwdriver or the like as a jig is locked in the groove to facilitate rotation around the axis.
For example, as shown by the solid arrow in FIG. 3B, the guide shaft 444 is pulled out to the front of the device (front side in the Y direction) by rotating the guide shaft 444 counterclockwise around the axis with a jig or the like. As a result, the amount of protrusion of the guide shaft 444 protruding from the insertion hole 112 becomes larger than that before rotation, and the position of the base point defining portion 445 is in front of the device (direction indicated by the white arrow in FIG. 3B). Move to.

Further, an urging member that urges an end portion of the guide shaft 444 on one end side in a direction away from the shaft support portion 111 at a portion around the axis of the guide shaft 444 that protrudes from the insertion hole 112 of the shaft support portion 111. Is placed.
In the present embodiment, a coil outer diameter larger than the inner diameter of the insertion hole 112 is provided between the shaft end portion 446, which is the front end portion of the guide shaft 444, and the shaft support portion 111, and is outside the shaft end portion 446. A compression coil spring (hereinafter, simply referred to as "spring 53") having a coil inner diameter smaller than the diameter is arranged.

By arranging the spring 53, a compressive load can be generated between the shaft end portion 446 and the shaft support portion 111, and the guide shaft 444 can be tensioned. As a result, backlash at the meshing portion between the male screw portion 51 and the female screw portion 113 can be suppressed, and a vibration isolation effect can be expected to absorb vibration during sliding of the carriage 431.
The urging member is not limited to the compression coil spring and may be a member having another configuration. Further, the spring 53 may be arranged at a position where a compressive load is generated between the shaft end portion 446 and the shaft support portion 111 so that the guide shaft 444 can have tension, and the spring 53 is provided at a position where the spring 53 is provided. Is not limited to between the shaft end 446 and the shaft support 111.

Further, as shown in FIG. 4, the printing device 1 includes a control device 30 that controls the printing unit 40.
The control device 30 is mounted on a board or the like (not shown), and includes a control unit 31 composed of a processor such as a CPU (Central Processing Unit), a ROM (Read Only Memory) 321 and a RAM (Random Access Memory) 322, and the like. It is a computer including a storage unit 32 that is configured.
Various programs for operating the printing device 1 and the like are stored in the storage unit 32, and the control unit 31 expands these programs in, for example, the work area of the RAM 322, and the programs are executed in the control unit 31. As a result, each part of the printing apparatus 1 is controlled in an integrated manner.

In the present embodiment, the initialization process for determining the origin position in printing is performed before printing. Specifically, the control unit 31 moves the head moving mechanism 42 (particularly in the Y direction) of the printing unit 40. The motor 440) is controlled to temporarily move the moving body 410 to the front end side of the device.

The moving body 410 stops at a position where the abutting surface 435b, which is the front end surface of the shaft insertion portion 435 of the carriage 431, abuts on the base point defining portion 445 of the guide shaft 444, and this position becomes the base point position. Then, the control unit 31 grasps the origin position, the print start position, and the like of the printing device 1 with reference to this base point position.
At this time, if the moving body 410 such as the carriage 431 is tilted with respect to the vertical line Vl, high-definition printing cannot be performed. Therefore, in the present embodiment, the deviation / inclination of the moving body 410 is mechanically adjusted by the adjusting unit 50.

<< Operation of printing equipment >>
By the adjusting unit 50 of the present embodiment, the position of the base point defining unit 445 in the moving direction of the moving body 50 (in the present embodiment, the front-rear direction and the Y direction of the device) on the pair of shafts (guide shaft 444) of the printing device 1 is set. A method of mechanically adjusting to fit will be described.
It should be noted that the process described here is not assumed at the time of initialization performed for each printing, but is assumed to be performed as the initial setting of the printing apparatus 1 at the time of factory shipment or the like. It should be noted that the adjustment processing shown below does not exclude the general user who uses the printing device 1 from performing the adjustment processing before the start of printing or the like.

First, the control unit 31 controls the printing unit 40 to a position where the abutting surface 435b, which is the front end surface of the shaft insertion portions 435 provided on the left and right sides of the carriage 431, abuts on the base point defining portions 445 of the left and right guide shafts 444, respectively. Move the moving body 410.

As described above, the printing device 1 is provided with the alignment line Rl parallel to the horizontal line Hl on the surface of the finger presser 23, and the user can visually check the printing device 1 from directly above the moving body 410. Check whether the axis in the extending direction coincides with the alignment line Rl.
Specifically, for example, it is confirmed whether or not the axis of the guide shaft 434 provided in the carriage 431 coincides with the alignment line Rl. It should be noted that what is used for alignment in relation to the alignment line Rl is not limited to the axis of the guide shaft 434 as long as it is easy to visually confirm.
For example, when the side on the front end side of the carriage 431 or the like is formed by a straight line that coincides with the axis in the extending direction of the moving body 410, the alignment between the side on the front end side of the carriage 431 and the alignment line Rl is confirmed. You may.

As a result of visual confirmation, if the axis in the extending direction of the moving body 410 and the alignment line Rl do not match (that is, they are deviated or tilted with respect to the vertical line Vl in the Y direction), the adjustment is made. Adjustment is performed by unit 50.
Specifically, for example, the procedure is as follows.

When adjusting by the adjusting unit 50, first, the pulley 441 around which the drive belt 443 is wound is released from being fixed, and the tension of the drive belt 443 is loosened.
By loosening the tension of the drive belt 443 in this way, the guide shaft 444 can be easily moved in the front-rear direction, and the moving body 410 (carriage 431) can be moved without being affected by the Y-direction moving motor 430. , It is possible to adjust the abutting position (base point position) with the base point defining portion 445 in the front-rear direction (Y direction) of the device.

For example, as shown in FIG. 2, when the right side of the carriage 431 is arranged so as to protrude slightly in front of the left side, the adjusting portion 50 of the guide shaft 444 on the right side of the carriage 431 is set to the base point defining portion 445. Is operated so as to move to the rear side (remaining side in the Y direction) of the device. That is, the right guide shaft 444 is rotated around the axis in the direction in which the base point defining portion 445 of the right guide shaft 444 moves toward the rear side (rear side in the Y direction) of the device, and is pushed toward the rear side in the Y direction.
On the contrary, the left guide shaft 444 is rotated around the axis in the direction in which the base point defining portion 445 of the left guide shaft 444 moves to the front side (front side in the Y direction) of the device, and the guide shaft 444 is moved to the front side in the Y direction. May be pulled out. For example, in the example shown in FIG. 3B, by rotating the guide shaft 444 counterclockwise around the axis, the guide shaft 444 is projected from the shaft support portion 111, and the base point defining portion 445 is set on the front side of the device. Move to.
The adjustment by the adjusting unit 50 may be performed by operating both the left and right sides, or may be performed by operating only one of them.

When the base point defining portion 445 moves, the moving body 410 also moves to a position where the abutting surface 435b of the left and right shaft insertion portions 435 abuts on the base point defining portion 445. Thereby, the inclination of the moving body 410 can be adjusted.
When the adjustment is performed by the adjusting unit 50, the user visually confirms again whether or not the axis in the extending direction of the moving body 410 and the alignment line Rl match.
Then, fine adjustment is performed until the axis in the extending direction of the moving body 410 and the alignment line Rl coincide with each other, and when the adjustment is completed, the pulley 441 is returned to the fixed state and the drive wound around the pulley 441 is driven. It is assumed that tension is applied to the belt 443.

In the adjusted printing apparatus 1, the Y-direction axis of the printing unit 40 along the vertical line Vl and the X-direction axis of the printing unit 40 along the horizontal line Hl are exactly orthogonal to each other, and can operate correctly in the XY direction. It becomes a state.

<< Effects of printing equipment >>
As described above, the printing device 1 of the present embodiment guides the moving body 410 including the printing head 41, which is a printing operation unit that performs the printing operation, and the moving body 410 extending in the moving direction of the moving body 410. It has a pair of guide shafts 444 having a base point defining portion 445 that defines a base point position that is a reference for the position of the moving body 410, and the moving direction of the moving body 410 in the pair of guide shafts 444 (this). In the embodiment, an adjusting unit 50 that mechanically adjusts the position of the base point defining unit 445 in the front-rear direction and the Y direction of the device is provided.
As a result, even when the moving body 410 (carriage 431 in the present embodiment) is tilted with respect to the axis in the moving direction (the axis parallel to the vertical line Vl in the present embodiment) and assembled to the guide shaft 444, the guide The inclination of the moving body 410 (carriage 431) can be easily corrected only by mechanically adjusting the position of the base point defining portion 445 of the shaft 444.
When printing is performed with the moving body 410 (carriage 431) tilted, for example, when printing is performed in a predetermined area with a plurality of PASSs, the left and right printing start positions and printing ends of the single ring are performed. It is printed in a state where the position is tilted and tilted. In this regard, when the tilt of the moving body 410 (carriage 431) is eliminated in the adjusting unit 50, the left and right print start positions and print end positions of the single ring are aligned with each other when the single ring is performed, resulting in a deviation. It is possible to realize high-definition printing.

Further, in the present embodiment, the base point defining portion 445 defines the base point position as a reference of the origin position by abutting the carriage 431 constituting the moving body 410.
In this way, by configuring the configuration in which the base point position is defined only by abutting the carriage 431, the moving body 410 including the carriage 431 is moved to the front end side of the apparatus by initialization such as before the start of printing operation, and the base point is defined. By simply abutting the portion 445, it is possible to confirm whether or not there is a left-right deviation (inclination) of the abutted position.

Further, the adjusting portion 50 in the present embodiment has a male screw portion 51 in which a male screw is formed around the shaft on one end side of the guide shaft 444, and an insertion hole 112 through which the one end side of the guide shaft 444 is inserted. A guide that protrudes from the insertion hole 112 by rotating a female screw portion 113 having a female screw that meshes with the male screw on the inner circumference of the guide shaft 444 and rotating the male screw portion 51 side or the female screw portion 113 side around the axis of the guide shaft 444. It has a screw feed structure that adjusts the amount of protrusion of the shaft 444.
As a result, the male screw portion of the guide shaft 444 constituting the head moving mechanism 42 (Y-direction moving mechanism 44 in this embodiment) of the printing unit 40 at the time of assembling the printing device 1 without providing a dedicated independent mechanism. The inclination of the moving body 410 (carriage 431) can be adjusted simply by rotating the guide shaft 444 around the axis so that the meshing position between the 51 and the female screw 112 changes.
Further, as compared with the case of adjusting by changing the thickness of the spacer, it is possible to perform fine adjustment using a precise screw pitch, so that simple and highly accurate adjustment can be performed.

Further, in the adjusting unit 50 of the present embodiment, the position of the base point defining unit 445 in the moving direction of the moving body 410 (in this embodiment, the print head 41 and the carriage 431) is continuously adjusted by the rotation of the guide shaft 444. NS.
Therefore, it is possible to easily and precisely eliminate the slight misalignment of the moving body 410 (carriage 431).

Further, in the present embodiment, the insertion hole 112 in which the female screw portion 113 is formed on the inner circumference is provided in the shaft support portion 111 that supports one end side of the guide shaft 444, and the adjusting portion 50 provides the guide shaft 444 with the guide shaft 444. By rotating the guide shaft 444 around the shaft, the amount of protrusion of the guide shaft 444 protruding from the insertion hole 112 is adjusted, and the position of the base point defining portion 445 of the guide shaft 444 is adjusted.
In this way, a screw-type screw feed structure as the adjusting portion 50 is provided on the guide shaft 444 and the shaft support portion 111, and the moving body 410 (carriage 431) is tilted only by rotating the guide shaft 444 around the axis. Therefore, it is not necessary to separately prepare parts for adjustment, etc., and the printing device 1 can be easily set to a state in which high-definition printing can be performed while suppressing the parts cost and the work cost. ..

Further, in the present embodiment, an end portion on one end side of the guide shaft 444 (a shaft end portion 446 which is a front end portion in the present embodiment) is located around the axis of the guide shaft 444 and protruding from the insertion hole 112. A spring 53 is arranged as an urging member that urges the shaft support portion 111 in a direction away from the shaft support portion 111.
As a result, a compressive load can be generated between the shaft end portion 446 and the shaft support portion 111, and the guide shaft 444 can be tensioned. Therefore, backlash at the meshing portion between the male screw portion 51 and the female screw portion 113 can be suppressed, and vibration during sliding of the carriage 431 can be absorbed to prevent the printing device 1 from rattling.

Further, in the present embodiment, the guide shaft 444 is rotated around the axis at the end portion of the guide shaft 444 on the side where the adjusting portion 50 is provided (in the present embodiment, the front end surface of the shaft end portion 446). A jig locking portion 52 for locking the jig is provided.
For example, as shown in FIGS. 3A and 3B, when the jig locking portion 52 is a groove portion capable of locking a flat-blade screwdriver or the like, a flat-blade screwdriver or the like as a jig is engaged in the groove. The guide shaft 444 can be stopped and rotated around the axis, and adjustment can be easily performed.

Further, the printing apparatus 1 of the present embodiment is provided with an alignment line Rl for confirming whether or not the positions of the base point defining portions 445 in the moving direction of the moving body 410 on the pair of guide shafts 444 are the same. Has been printed.
As a result, the user who performs the adjustment operation can easily visually confirm the suitability of the adjustment. Therefore, the printing device 1 can be adjusted to a state in which printing can be performed with high accuracy without performing a separate inspection by test printing or the like.

<< Modification example >>
Although the embodiments of the present invention have been described above, it goes without saying that the present invention is not limited to such embodiments and can be variously modified without departing from the gist thereof.

For example, in the present embodiment, the case where the moving body 410 including the printing operation unit that performs the printing operation is configured to include the print head 41 and the carriage 431 as the printing operation unit is illustrated, but the configuration of the moving body 410 is Not limited to this.
For example, the print head 41 may extend in the X direction orthogonal to the Y direction, which is the movement direction, and may have a configuration in which the print head 41 moves in the Y direction as a moving body 410 without a carriage.
In this case, by aligning a straight line portion such as the front end surface of the print head 41 that should be parallel to the horizontal line Hl with the alignment line Rl, it is confirmed whether the moving body 410 is not displaced with respect to the moving direction. conduct.

Further, in the present embodiment, the case where the alignment line Rl is provided on the surface (upper surface) of the finger presser 23 of the finger holding portion 20 is illustrated, but the position where the alignment line Rl is provided is not limited to this.
It should be noted that the alignment line Rl should be provided at a position where the height difference from the moving body 410 (carriage 431 in this embodiment), which is the target for which the inclination is to be confirmed as much as possible, is small, so that the accuracy at the time of visual confirmation is improved. It goes up and the alignment can be confirmed more easily and surely.
Therefore, for example, a base having a height equivalent to that of the finger presser 23 of the finger holding portion 20 and a height position such that the lower end of the moving body does not interfere with each other is provided on the back side of the finger holding portion 20 or on the finger holding portion 20. A side portion or the like may be provided, and an alignment line Rl may be provided on the upper surface or the like of the table.
In this case, the platform is in a state where the abutting surface 435b of the moving body 410 (carriage 431) abuts on the base point defining portion 445, and the linear portion in the left-right direction of the moving body 410 (carriage 431) (for example, the guide shaft 434 or the carriage). It is arranged at a position where the positional relationship between the front end surface, etc.) and the alignment line Rl can be easily confirmed.
Further, a mark, a scale, or the like such as an alignment line Rl may be provided on a part of the chassis 11 or the like so that the alignment can be visually performed.

Further, in the present embodiment, a case where the presence or absence of inclination of the moving body 410 (carriage 431 in this embodiment) is visually confirmed has been illustrated, but the method for confirming the presence or absence of inclination is not limited to this.
For example, a sensor or the like for detecting whether or not there is a deviation in the timing at which the left and right abutting surfaces 435b of the moving body 410 (carriage 431) abut against the base point defining portion 445 of the pair of guide shafts 444 is provided, and there is a deviation. In this case, the guide shaft 444 on the side that abuts earlier is pulled out so that the position of the base point defining portion 445 moves to the front side of the device, and the timing at which the abutting surface 435b abuts on the base point defining portion 445 of the pair of guide shafts 444 is left and right. Adjust so that it does not shift. When checking using a sensor or the like in this way, it is not necessary to provide the alignment line Rl.

Further, in the present embodiment, a pair of shafts (guide shafts 444) for guiding the moving body 410 are arranged on the left and right in the width direction of the device, and the moving body 410 moves along the front-rear direction (Y direction) of the device. However, the moving direction of the moving body 410 is not limited to this.
For example, the present invention also has a configuration in which a pair of shafts for guiding the moving body 410 are arranged before and after the depth direction (Y direction) of the device, and the moving body 410 moves along the left-right direction (X direction) of the device. Configuration can be applied.

Further, in the present embodiment, an example is shown in which the adjusting portion 50 is provided on both of the pair of shafts (guide shaft 444) that guide the moving body 410, but the adjusting portion 50 is one of the pair of guide shafts 444. It may be provided in only one of them.

Further, the adjusting portion 50 for adjusting the position where the abutting surface 435b of the moving body 410 abuts on the base point defining portion 445 may have a configuration other than the screw feed type screw feed structure.

Further, when the adjusting portion 50 has a screw feed structure, it may be rotated around the shaft on either the shaft (guide shaft) side or the shaft support portion 111 side.
For example, a nut (not shown) having a female thread portion that meshes with the male thread portion 51 provided on the shaft (guide shaft) 444 is provided on the shaft support portion 111 side, and this nut is rotated around the shaft to move the nut. It may be configured to adjust the position of the base point defining portion 445.

Further, the jig for rotating the guide shaft 444 does not have to be a flat-blade driver. When another jig is used, the shape of the jig locking portion 52 is also a shape suitable for the shape of the applied jig and the like.
Further, the guide shaft 444 is not limited to the one that is rotated by using a jig. For example, the shaft end portion 446 may be rotated by a finger. In this case, it is preferable that the peripheral surface of the shaft end portion 446 is provided with a non-slip surface such as knurling, or a clamp shape is provided so that the shape and configuration can be easily turned by a finger.

Although some embodiments of the present invention have been described above, the scope of the present invention is not limited to the above-described embodiments, but includes the scope of the invention described in the claims and the equivalent scope thereof. ..
The inventions described in the claims originally attached to the application of this application are added below. The claims in the appendix are as specified in the claims originally attached to the application for this application.
[Additional Notes]
<Claim 1>
A mobile body including a print operation unit that performs a print operation,
A pair of shafts extending in the moving direction of the moving body to guide the moving body and having a base point defining portion that defines a base point position that serves as a reference for the position of the moving body.
Have,
At least one of the pair of shafts
A printing apparatus comprising an adjusting portion that mechanically adjusts the position of the base point defining portion in the moving direction of the moving body on the pair of shafts.
<Claim 2>
The printing apparatus according to claim 1, wherein the base point defining portion defines the base point position by abutting the moving body.
<Claim 3>
The printing apparatus according to claim 1 or 2, wherein the adjusting unit has a structure for continuously adjusting the position of the base point defining portion in the moving direction of the moving body.
<Claim 4>
The adjusting part
A male screw portion having a male screw formed around the shaft on one end side of the shaft, and a male screw portion.
A female screw portion having an insertion hole through which one end side of the shaft is inserted and having a female screw that meshes with the male screw is formed on the inner circumference of the insertion hole.
With
It is characterized by having a screw feed structure that adjusts the amount of protrusion of the shaft that protrudes from the insertion hole by rotating the male screw portion side or the female screw portion side around the axis of the shaft. The printing apparatus according to any one of claims 1 to 3.
<Claim 5>
The insertion hole is provided in a shaft support portion that supports one end side of the shaft.
The adjusting part
According to claim 4, the amount of protrusion of the shaft protruding from the insertion hole is adjusted by rotating the shaft around an axis, and the position of the base point defining portion of the shaft is adjusted. The printing device described.
<Claim 6>
A urging member is arranged around the axis of the shaft and protruding from the insertion hole to urge the end portion of the shaft on one end side in a direction away from the shaft support portion. The printing apparatus according to claim 5.
<Claim 7>
5. The fifth aspect of the present invention is characterized in that a jig locking portion for locking a jig for rotating the shaft about an axis is provided at an end portion of the shaft on the side where the adjusting portion is provided. Or the printing apparatus according to claim 6.
<Claim 8>
Claims 1 to 7 are provided with an alignment line for confirming whether or not the positions of the base point defining portions of the moving body in the moving direction of the pair of shafts are the same. The printing apparatus according to any one of the above.

1 Printing device 10 Base 11 Chassis 40 Printing unit 41 Printing head 42 Head moving mechanism 43 X-direction moving mechanism 44 Y-direction moving mechanism 50 Adjusting part 51 Male screw part 52 Jig locking part 53 Spring 111 Shaft support part 410 Moving body 431 Chassis 444 Guide shaft 445 Base point defining part Rl Alignment line

Claims (8)

A mobile body including a print operation unit that performs a print operation,
A pair of shafts extending in the moving direction of the moving body to guide the moving body and having a base point defining portion that defines a base point position that serves as a reference for the position of the moving body.
Have,
At least one of the pair of shafts
A printing apparatus comprising an adjusting portion that mechanically adjusts the position of the base point defining portion in the moving direction of the moving body on the pair of shafts. The printing apparatus according to claim 1, wherein the base point defining portion defines the base point position by abutting the moving body. The printing apparatus according to claim 1 or 2, wherein the adjusting unit has a structure for continuously adjusting the position of the base point defining portion in the moving direction of the moving body. The adjusting part
A male screw portion having a male screw formed around the shaft on one end side of the shaft, and a male screw portion.
A female screw portion having an insertion hole through which one end side of the shaft is inserted and having a female screw that meshes with the male screw is formed on the inner circumference of the insertion hole.
With
It is characterized by having a screw feed structure that adjusts the amount of protrusion of the shaft that protrudes from the insertion hole by rotating the male screw portion side or the female screw portion side around the axis of the shaft. The printing apparatus according to any one of claims 1 to 3. The insertion hole is provided in a shaft support portion that supports one end side of the shaft.
The adjusting part
By rotating the shaft around an axis, the shaft is moved with respect to the shaft support portion, the amount of protrusion of the shaft protruding from the insertion hole is adjusted, and the position of the base point defining portion of the shaft is adjusted. The printing apparatus according to claim 4, wherein the printing apparatus is to be adjusted. A urging member is arranged around the axis of the shaft and protruding from the insertion hole to urge the end portion of the shaft on one end side in a direction away from the shaft support portion. The printing apparatus according to claim 5. 5. The fifth aspect of the present invention is characterized in that a jig locking portion for locking a jig for rotating the shaft about an axis is provided at an end portion of the shaft on the side where the adjusting portion is provided. Or the printing apparatus according to claim 6. Claims 1 to 7 are provided with an alignment line for confirming whether or not the positions of the base point defining portions of the moving body in the moving direction of the pair of shafts are the same. The printing apparatus according to any one of the above.

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