JP7238590B2 - Devices for guiding mobile objects, printing devices - Google Patents

Description

The present invention relates to a device for guiding a moving body and a printing device.

As a device for reciprocatingly guiding a moving body such as a carriage on which a liquid ejection head is mounted, for example, a device is known in which a guide member for movably holding the carriage is attached to a stay member arranged along the moving direction of the carriage. It is

Conventionally, a position adjusting member is arranged along the moving direction of the carriage, and the stay member and the position adjusting member are connected by a connecting member at a plurality of locations other than both ends of the position adjusting member in the longitudinal direction. By adjusting the connection position of at least one of the stay member and the position adjustment member, the position of the stay member can be adjusted in a direction toward and away from the position adjustment member (Patent Document 1) .

JP 2013-188894 A

By the way, in the configuration in which the guide member is attached to the stay member, the guide member is affected by the inclination of the attachment surface of the stay member. Therefore, when the mounting surface of the stay member is tilted in a plane perpendicular to the moving direction of the moving body, the guide member is similarly tilted, leading to the tilting of the moving body.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to enable adjustment of the inclination of a guide member.

In order to solve the above problems, a device for guiding a moving object according to the present invention includes:
a guide member that movably holds and guides the moving body;
and a stay to which the guide member is attached,
The stay has a mounting portion including a mounting surface for mounting the guide member, and a facing portion facing the mounting portion,
means for partially displacing the mounting surface by changing the distance between the mounting portion and the facing portion of the stay;
The means for displacing
an adjusting plate disposed between the mounting portion and the facing portion;
means for moving the adjustment plate,
The adjusting plate is arranged above and below the guide member in the height direction.

According to the present invention, it becomes possible to adjust the inclination of the guide member.

FIG. 2 is an explanatory side view of a mechanical portion of an example of the printing apparatus according to the present invention; It is similarly a plane explanatory view. It is similarly a principal part perspective explanatory view. It is similarly a side explanatory view of a carriage part. FIG. 2 is an explanatory side view of a part of a device for guiding a moving body, for explaining the first embodiment of the present invention; It is a side explanatory view of the state before the adjustment by the adjustment means with which it uses for operation|movement description of the same embodiment. It is a side explanatory view of the state after adjustment by the adjusting means similarly. It is plane explanatory drawing of the apparatus which guides a moving body with which description of 2nd Embodiment of this invention is presented. FIG. 11 is a plan explanatory view of a device for guiding a moving body for explaining a third embodiment of the present invention; It is a side explanatory view of the part of the apparatus which guides a moving body with which description of 4th Embodiment of this invention is offered. It is a side explanatory view of the part of the apparatus which guides a moving body with which description of 5th Embodiment of this invention is offered. It is a side explanatory view of the part of the apparatus which guides a moving body with which description of 6th Embodiment of this invention is offered.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. An example of a printing apparatus according to the present invention will be described with reference to FIGS. 1 to 4. FIG. 1 is an explanatory side view of the mechanical portion of the same printing apparatus, FIG. 2 is an explanatory plan view of the same, FIG. 3 is an explanatory perspective view of the main part, and FIG. 4 is an explanatory side view of the carriage portion.

This printing apparatus 1 is a serial type inkjet recording apparatus as a device for ejecting liquid. The printing apparatus 1 includes a printing unit 10 that prints on a sheet material 2 such as roll paper, and a conveying unit 20 that conveys the sheet material 2 within the apparatus body 100 . In addition, the printing apparatus 1 accommodates, outside the apparatus main body 100, a roll accommodating section 30 that accommodates a delivery roll 3 around which the sheet material 2 is wound, and a take-up roll 4 that takes up the sheet material 2. It has a roll take-up unit 40 for carrying out.

In the printing unit 10, a guide member 102 attached to a stay member 103 spanning left and right side plates 101A and 101B holds and guides a carriage 105, which is a moving body, so that it can reciprocate in the main scanning direction.

The carriage 105 is equipped with three liquid ejection units 110 (110A to 110C). The liquid ejection unit 110 is configured by integrating a liquid ejection head (head) 111 as liquid ejection means and a sub-tank 112 for supplying liquid to the head 111 .

A cartridge holder 121 to which a plurality of main tanks (liquid cartridges) 120 containing liquids of respective colors are replaceably mounted is arranged on one end side of the apparatus main body 100 . A liquid of each color is supplied from the main tank 120 mounted on the cartridge holder 121 to the head 111 of each liquid discharge unit 110 through a liquid path 123 constituted by a supply tube of each color by a liquid feed pump or the like.

The conveying unit 20 has a conveying roller 201 and a counter roller 202 arranged upstream of the printing unit 10 in the sheet conveying direction (direction of arrow A: sub-scanning direction), and conveys the sheet 2 while sandwiching it.

The conveying section 20 also includes a platen member 203 facing the head 111 and a suction mechanism section 204 that sucks the sheet material 2 through a suction hole 203 a of the platen member 203 . Although the suction holes 203a are partially shown in the drawing, they are arranged on the entire platen member 203. As shown in FIG.

A conveying guide member 205 for guiding the sheet material 2 delivered from the delivery roll 3 is arranged on the inlet side of the conveying section 20, and a conveying guide member 206 for guiding the sheet material 2 to the take-up roll 4 is arranged on the outlet side. ing.

A maintenance/recovery mechanism 150 for performing maintenance/recovery (maintenance) of the head 111 is arranged on one side of the carriage 105 in the main scanning direction.

The maintenance and recovery mechanism 150 includes, for example, a cap 151 that caps the nozzle surface of the head 111, and a wiping unit 152 that includes a web 153 that wipes the nozzle surface.

In this apparatus 1, the sheet material 2 is conveyed in the conveying direction while being sucked on the platen member 203 by the conveying roller 201 and the opposing roller 202. As shown in FIG.

Therefore, by moving the carriage 105 in the main scanning direction and driving the head 111 according to the print signal, the liquid of a desired color is ejected onto the stopped sheet material 2 to print one line. After the material 2 is conveyed by a predetermined amount, printing of the next line is repeated, and the sheet material 2 is discharged.

Next, a first embodiment of the present invention will be described with reference to FIG. 5 as well. FIG. 5 is an explanatory side view of a portion of a device for guiding a moving body for explaining the same embodiment.

A guide device 301 constituting guide means for guiding the carriage 105 so as to reciprocate in the main scanning direction has a guide member 102 which is a linear guide for holding and guiding the carriage 105 so as to reciprocate, and a guide member 102 attached thereto. It is composed of a hollow stay member 103 having a rectangular cross section.

As shown in FIG. 4, the carriage 105 is movably fitted to the guide member 102 at the fitting portion 105a provided on the back side. The stay member 103 includes a mounting portion 103a forming a mounting surface 104 for mounting the guide member 102, and a facing portion 103b facing the mounting portion 103a. Both ends of the stay member 103 in the main scanning direction are fixed to the side plate 101 by holding members 302, as shown in FIGS.

The guide device 301 includes adjusting means 310 which is means for partially displacing the mounting surface 104 by changing the distance between the mounting portion 103a including the mounting surface 104 of the stay member 103 and the facing portion 103b. ing.

The adjustment means 310 includes adjustment plates 311 (311A and 311B) arranged between the mounting portion 103a and the facing portion 103b, and provided on the side of the facing portion 103b to move the adjusting plate 311 toward the mounting portion 103a. It includes adjustment screws 312 (312A, 312B) that are advancing and retracting members.

The adjustment plate 311A is arranged above the guide member 102 in the height direction, and the adjustment plate 311B is arranged below the guide member 102 in the height direction.

Next, the operation of this embodiment will be described with reference to FIGS. 6 and 7. FIG. FIG. 6 is an explanatory side view of the state before adjustment by the adjusting means, and FIG. 7 is an explanatory side view of the state after adjustment by the adjusting means.

For example, as shown in FIG. 6, when the upper side of the mounting surface 104 of the stay member 103 is inclined to the upstream side in the conveying direction and the lower side thereof is inclined to the downstream side in the conveying direction, the guide member 102 is also inclined in the same direction. .

At this time, in a configuration in which the carriage 105 is held by only one guide member 102, the tilting of the guide member 102 causes the carriage 105 to rotate and tilt within a plane perpendicular to the main scanning direction. If the carriage 105 is tilted, the gap between the nozzle surface 111a (see FIG. 4) of the head 111 and the sheet material 2 conveyed by the conveying section 20 becomes uneven in the conveying direction, degrading the image quality.

Therefore, as shown in FIG. 7, the upper adjustment screw 312A is operated to move (extrude) the upper adjustment plate 311A toward the attachment portion 103a, that is, in the arrow A direction. As a result, the mounting portion 103a is pushed by the tip portion of the adjusting plate 311A and is partially deformed, the upper side of the guide member 102 protrudes downstream in the conveying direction, and the portion of the mounting surface 104 to which the guide member 102 is mounted is displaced. Corrected to vertical posture.

By correcting the posture of the portion where the guide member 102 is attached to the vertical position, the tilt of the guide member 102 is corrected and becomes vertical, and the carriage 105 rotates in the direction of arrow B to correct the inclination (tilt) of the carriage 105. be.

As a result, the nozzle surface of the head 111 is substantially parallel to the platen member 203 of the conveying unit 20, and the gap between the nozzle surface 111a and the sheet material 2 conveyed by the conveying unit 20 is kept substantially constant in the conveying direction. It is possible to reduce deterioration in image quality due to non-uniformity of .

Here, an example in which the inclination of the guide member 102, that is, the inclination of the carriage 105 is adjusted by moving the upper adjustment plate 311A is described, but the lower adjustment plate 311B is moved toward the mounting portion 103a. Thus, the carriage 105 can be rotated in the direction opposite to the arrow B direction.

Next, a second embodiment of the invention will be described with reference to FIG. FIG. 8 is an explanatory plan view of a device for guiding a moving body for explaining the same embodiment.

In the present embodiment, the adjusting means 310 includes a plurality of adjusting plates arranged separately in the main scanning direction (longitudinal direction of the guide member, moving direction of the moving body) between the attachment portion 103a and the facing portion 103b of the stay member 103. 311.

A plurality of (here, four) adjusting screws 312 are arranged side by side in the main scanning direction for each adjusting plate 311 on the mounting portion 103b side of each adjusting plate 311 .

Because of this configuration, for example, as shown in FIG. One or more adjustment screws 312 are operated to move the corresponding adjustment plate 311 . Then, the adjustment plate 311 is moved in the arrow A direction toward the attachment portion 103a.

As a result, as shown in FIG. 8(b), the concave portion C is pushed out to straighten the guide member 102. can be made smaller.

In this case, the smaller the width of the adjustment plate 311 in the main scanning direction and the more the number of adjustment screws 312 of the adjustment plate 311, the smaller the straightness can be adjusted.

Further, since the straightness of the guide member 102 affects the durability of the guide member 102, it must be adjusted with high accuracy. Therefore, by dividing the adjusting plate 311 into a plurality of parts as in the present embodiment, it is possible to omit the inclination adjustment of the carriage 105 outside the printing area, thereby reducing the adjustment man-hours. can.

Next, a third embodiment of the invention will be described with reference to FIG. FIG. 9 is an explanatory plan view of a device for guiding a moving body for explaining the same embodiment.

In this embodiment, as in the second embodiment, the adjustment means 310 is provided between the attachment portion 103a and the facing portion 103b of the stay member 103 in the main scanning direction (the longitudinal direction of the guide member, the moving direction of the moving body). has a plurality of adjusting plates 311 that are dividedly arranged in the .

A plurality of (here, four) adjusting screws 312 are arranged side by side in the main scanning direction for each adjusting plate 311 on the mounting portion 103b side of each adjusting plate 311 .

The guide member 102 is fixed to the mounting surface 104 of the stay member 103 by a screw 115 which is a fixing member.

Therefore, the adjusting screw 312 is arranged at the same position as the screw 115 (indicated by line a) or in the vicinity of the screw 115 (indicated by line b) in the main scanning direction.

As a result, since the guide member 102 and the stay member 103 are coupled, the adjustment plate 311 can accurately press the portion where the deformation of the stay member 103 is likely to be reflected in the deformation of the guide member 102, and the adjustment can be performed effectively. can.

Next, a fourth embodiment of the invention will be described with reference to FIG. FIG. 10 is an explanatory side view of a portion of a device for guiding a moving body for explaining the same embodiment.

In this embodiment, the adjustment plate 311A arranged above the guide member 102 serves as means for adjusting the inclination of the guide member 102. As shown in FIG. On the other hand, an adjusting plate 311B arranged on the back surface of the guide member 102 (the surface on the side opposite to the guide member 102 via the mounting portion 103a) serves as means for adjusting the straightness of the guide member 102. As shown in FIG.

In this way, by dividing the plurality of adjustment plates into the inclination adjustment and the straightness adjustment, the adjustment can be performed in a shorter time.

Next, a fifth embodiment of the present invention will be described with reference to FIG. FIG. 11 is an explanatory side view of a portion of a device for guiding a moving body for explaining the same embodiment.

In this embodiment, in addition to the configuration of the first embodiment, pull adjustment screws 313 (313A, 313B) are provided as pull members for pulling the attachment portion 103a of the stay member 103 toward the facing portion 103b.

In this way, by allowing the mounting portion 103a of the stay member 103 to not only be pushed against the facing portion 103b but also to be pulled, the adjustment range of the mounting surface 104 is widened, and the inclination and straightness of the guide member 102 can be adjusted. become easier.

Further, by separating the pushing member and the pulling member, it is possible to make finer adjustments than when pushing and pulling with one member. For example, when the adjustment plate is pushed and pulled by a single member, it is necessary to connect the adjustment plate and the adjustment screw (push member, pull member). It becomes difficult to quantify. In this case, the adjusting plate and the adjusting screw can be connected by a flexible joint or the like, but the structure becomes complicated.

Next, a sixth embodiment of the present invention will be described with reference to FIG. FIG. 12 is an explanatory side view of a portion of a device for guiding a moving body for explaining the same embodiment.

In this embodiment, the tip (one end) of the adjustment plate 311 is fixed to the mounting portion 103 a of the stay member 103 .

Further, similarly to the first embodiment, an adjusting screw 312 for moving the adjusting plate 311 toward the mounting portion 103a is arranged on the facing portion 103b side.

In the present embodiment, connecting portions 314 (314A, 314B) are provided integrally in the middle of the adjusting plate 311, and pull adjusting screws 315 (315A, 315B) that form a pulling member together with the adjusting plate 311 are attached to the connecting portion 314. are concatenated.

With this configuration, by operating the pulling adjustment screw 315, the adjusting plate 311 is attracted toward the opposing portion 103b, and the mounting portion 103a fixed to the adjusting plate 311 moves toward the opposing portion 103b. .

As a result, the adjustable range is widened as in the fifth embodiment, and the length of the pull adjusting screw is shorter than in the fifth embodiment.

In each of the above-described embodiments, the adjustment plate is arranged above and below the guide member in the height direction. It is also possible to have a configuration in which one is arranged.

Further, in each of the above embodiments, the carriage on which the liquid ejection head of the printing apparatus is mounted has been described as a moving body, but the moving body is not limited to this. For example, the present invention can be similarly applied to a device that moves and guides a reading unit of an image reading device, a device that moves and guides a cutter unit that cuts roll paper, and the like.

REFERENCE SIGNS LIST 1 printing device 2 sheet material 10 printing unit 20 conveying unit 100 apparatus main body 102 guide member 103 stay member 103a attachment portion 103b facing portion 104 attachment surface 105 carriage (moving body)
110 head unit 301 guide device (device for guiding a moving body)
310 adjusting means (means for displacing)
311, 311A, 311B adjusting plate 312, 312A, 312B adjusting screw (moving means, pushing member)
313A, 313B pull adjustment screw (moving means, pull member)

Claims (6)

a guide member that movably holds and guides the moving body;
and a stay to which the guide member is attached,
The stay has a mounting portion including a mounting surface for mounting the guide member, and a facing portion facing the mounting portion,
means for partially displacing the mounting surface by changing the distance between the mounting portion and the facing portion of the stay;
The means for displacing
an adjusting plate disposed between the mounting portion and the facing portion;
means for moving the adjustment plate,
A device for guiding a moving body, wherein the adjusting plate is arranged above and below the guide member in a height direction. 2. A device for guiding a movable body according to claim 1, wherein said means for moving is a pressing member provided on said facing portion side and for moving said adjustment plate toward said mounting portion side. 3. A device for guiding a moving object according to claim 1 , wherein a plurality of said adjusting plates are arranged side by side in the moving direction of said moving object. 4. A device for guiding a moving body according to claim 1 , further comprising a pulling member for pulling said mounting portion toward said facing portion. The mounting portion side of the adjusting plate is fixed to the mounting portion,
5. A device for guiding a moving body according to claim 4 , wherein said pulling member is a member for moving said adjusting plate toward said facing portion. the moving body is a carriage on which a head for forming an image is mounted;
guide means for guiding the reciprocating movement of the carriage in the main scanning direction;
6. A printing apparatus, wherein said guiding means includes the apparatus for guiding said moving body according to claim 1.

Images