CN110561913A - Line head unit - Google Patents
Line head unit Download PDFInfo
- Publication number
- CN110561913A CN110561913A CN201910060728.6A CN201910060728A CN110561913A CN 110561913 A CN110561913 A CN 110561913A CN 201910060728 A CN201910060728 A CN 201910060728A CN 110561913 A CN110561913 A CN 110561913A
- Authority
- CN
- China
- Prior art keywords
- base plate
- pin
- head
- nozzle
- line head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/145—Arrangement thereof
- B41J2/155—Arrangement thereof for line printing
Landscapes
- Ink Jet (AREA)
Abstract
The invention provides a line head unit. The line head unit includes: a base plate holding the nozzle head; a nozzle frame penetrating the base plate in the up-down direction; a control unit fixed to the head frame and controlling the nozzle head; and a locking part which is fixed to the control unit and locks the control unit to the support member. This prevents the surface properties of the base plate of the line head from changing, thereby suppressing a decrease in printing accuracy.
Description
Technical Field
The present invention relates to a line head unit.
Background
In recent years, ink jet apparatuses using an ink jet recording system such as an ink jet printer and an ink jet plotter have been widely used for industrial applications such as formation of circuits, production of color filters for liquid crystal displays, and production of organic EL displays.
An inkjet device is required to have a high printing speed. Therefore, a line-type ink jet apparatus is known which performs printing simultaneously in the main scanning direction by using a nozzle head in which a plurality of nozzle holes are arranged over the entire width of a recording medium, instead of performing recording while moving the nozzle head in the main scanning direction.
In such an ink jet apparatus, a long line head capable of covering the entire width of the recording medium is required. Such a long line head is manufactured in a divided manner because it is expensive to manufacture the line head at one time. Specifically, a plurality of nozzle heads are assembled to a base plate (for example, patent document 1).
fig. 4 is a schematic configuration diagram of an ink jet apparatus including a conventional line head unit. Fig. 5 is a schematic perspective view of a conventional line head. Fig. 6 is a schematic configuration diagram showing a state in which a conventional line head unit is mounted on a transport tray.
As shown in fig. 4, the ink jet device 101 includes a support member 108 and a line head unit 109 held in the support member 108. The line head unit 109 has the line head 104, a head frame 105, a control unit 106, and a flexible line 107.
the line head 104 includes a nozzle head 102 having a plurality of nozzle holes 102a for ejecting ink, and a base plate 103. A control unit 106 for controlling the nozzle head 102 is fixed to the head frame 105. Flexible wires 107 electrically connect nozzle head 102 with control unit 106.
As shown in fig. 5, in the line head 104, the nozzle head 102 is assembled to the base plate 103 so that the surface on which the nozzle holes 102a are provided is parallel to the lower surface of the base plate 103.
As shown in fig. 4, the inkjet device 101 further includes a roller 112. The roller 112 rotates to convey a recording medium 111 such as printing roll paper. The inkjet device 101 ejects ink from the nozzle holes 102a of the nozzle head 102 while conveying the recording medium 111 through the rollers 112, and records images, characters, and the like on the recording medium 111.
here, if the alignment of the nozzle heads 102 is not accurate, the position and direction of ink ejection between the nozzle heads 102 change, and a problem such as streaks occurs in a printed matter.
Therefore, it is necessary to assemble the nozzle head 102 to the base plate 103 with high positional accuracy and to dispose the line head unit 109 in the support member 108 while maintaining the high positional accuracy, in order to avoid a decrease in printing accuracy.
In addition, the nozzle head 102 is controlled in accordance with the micro-voltage signal from the control unit 106. Therefore, the flexible wire 107 electrically connecting the nozzle head 102 and the control unit 106 is restricted in length to prevent a voltage drop, and the control unit 106 cannot be disposed away from the nozzle head 102.
As shown in fig. 6, the line head unit 109 can convey the single body in a state of being set on the conveyance tray 118. In this case, it is necessary to set the line head unit 109 on the conveyance tray 118 while maintaining high assembly accuracy of the nozzle head 102 with respect to the base plate 103.
[ Prior art documents ]
[ patent document ]
[ patent document 1 ] Japanese patent laid-open No. 2016 and 2672
in the conventional configuration, since the flexible wire 107 has length restrictions as described above, the head frame 105 for installing the control unit 106 is provided on the base plate 103.
in such a configuration, the surface properties such as undulation are changed on the base plate 103 due to the weight of the control unit 106 and the head frame 105. Therefore, there is a risk that the assembly accuracy of the nozzle head 102 with respect to the base plate 103 is degraded and the position of the nozzle hole 102a is shifted from a desired position. As a result, there is a problem that the position and direction of ink ejection change, and printing accuracy on the recording medium 111 decreases.
Disclosure of Invention
The invention aims to provide a line head unit which can prevent the surface property of a base plate in a line head from changing and restrain the reduction of printing precision.
[ MEANS FOR solving PROBLEMS ] A method for solving the problems
A line head unit according to an aspect of the present invention includes: a base plate holding the nozzle head; a nozzle frame penetrating the base plate in the vertical direction; a control unit fixed to the head frame and controlling the nozzle head; and a locking portion that is fixed to the control unit and locks the control unit to the support member.
in addition, a line head unit according to another aspect of the present invention includes: a base plate holding the nozzle head; a nozzle frame penetrating the base plate in the vertical direction; and a control unit fixed to the head frame and controlling the nozzle head, wherein a block body is provided at a lower portion of the head frame, the block body is provided with a first pin penetrating the base plate in a vertical direction, and the base plate is provided with a first hole through which the first pin penetrates.
In addition, a line head unit according to still another aspect of the present invention includes: a base plate holding the nozzle head; a nozzle frame penetrating the base plate in the vertical direction; and a control unit fixed to the head frame and controlling the nozzle head, wherein a second pin penetrating the base plate in a vertical direction is provided at a lower end of the head frame, and a second hole through which the second pin penetrates is provided in the base plate.
[ Effect of the invention ]
According to the present invention, it is possible to prevent the surface properties of the base plate in the line head from changing, and to suppress a decrease in printing accuracy.
drawings
Fig. 1 is a schematic configuration diagram of an ink jet apparatus including a line head unit according to an embodiment.
Fig. 2 is a schematic configuration diagram showing a state in which the line head unit according to the embodiment is installed on a transport tray.
Fig. 3 is a schematic configuration diagram showing a state in which the line head unit according to the embodiment is installed in the nozzle head replacement jig.
fig. 4 is a schematic configuration diagram of an ink jet apparatus including a conventional line head unit.
fig. 5 is a schematic perspective view of a conventional line head.
Fig. 6 is a schematic configuration diagram showing a state in which a conventional line head unit is set on a transport tray.
[ description of reference ]
1 ink jet device
2 nozzle tip
2a nozzle hole
3 base plate
3a opening
4-line type spray head
5 spray head frame
5a placing part
5b foot
6 control unit
7 Flexible line
8 support member
9-line head unit
10 locating pin
10a hole
11 recording medium
12 roller
13 locking part
14 receiving part
15 block
16 first pin
17 first hole
18 conveying tray
18a receiving portion
19 second pin
20 second hole
21 nozzle head replacement jig
21a receiving portion
101 ink jet device
102 nozzle tip
102a nozzle hole
103 base plate
104 line type spray head
105 shower nozzle frame
106 control unit
107 flexible line
108 support member
109 line head unit
111 recording medium
112 roller
118 conveying tray
Detailed Description
(embodiment mode 1)
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The embodiment described below is an example, and the present invention is not limited to this embodiment. The constituent elements of the embodiments described below can be combined as appropriate. In addition, some of the components may not be used.
(ink jet device)
Fig. 1 is a schematic configuration diagram of an ink jet apparatus 1 including a line head unit 9 according to an embodiment. The inkjet device 1 includes a support member 8 and a line head unit 9.
the support member 8 is formed in a box shape having an inner space and an opening on a lower surface, and is a part of a box or an apparatus provided. The support member 8 is made of aluminum. The support member 8 has a function of holding the line head unit 9 when recording images, characters, and the like on the recording medium 11. A receiving portion 14 is fixed to an inner surface of the support member 8. The receiving portion 14 will be described later.
the line head unit 9 includes a line head 4, a head frame 5, a control unit 6, a flexible wire 7, and a locking portion 13.
The line head 4 is composed of a plurality of nozzle heads 2 and a base plate 3. The line head 4 is assembled by aligning a plurality of nozzle heads 2 with the base plate 3 and arranging them in a plurality of rows.
The nozzle head 2 is formed in a substantially rectangular parallelepiped shape having an internal space. The nozzle head 2 is made of stainless steel. The nozzle head 2 is provided with a plurality of nozzle holes 2 a. The ink is held in the inner space of the nozzle head 2.
the base plate 3 is formed in a rectangular plate shape. The base plate 3 is made of stainless steel. A plurality of openings 3a for connecting the flexible wires 7 to the nozzle head 2 are provided in the center portion of the base plate 3.
As shown in fig. 1, the first hole 17, the second hole 20, and the hole 10a penetrating in the vertical direction are provided in a row at positions on the upstream side and the downstream side in the conveying direction with respect to the opening 3 a.
In fig. 1, a set of first holes 17, second holes 20, and 10a on the upstream side in the conveying direction and a set of first holes 17, second holes 20, and 10a on the downstream side in the conveying direction are shown. The first holes 17, the second holes 20, and the groups 10a are provided at predetermined intervals in a direction orthogonal to the conveying direction.
The first pin 16 of the head frame 5 passes through the first hole 17. The second pin 19 of the nozzle head frame 5 passes through the second hole 20.
the first pin 16 and the second pin 19 are mainly used in embodiments 2 and 3. However, it is preferable that the base plate 3 and the head frame 5 can be handled as a set when the line head unit 9 is attached to or detached from the support member 8.
the positioning pin 10 passes through the hole 10 a. The diameter of the hole 10a is slightly larger than the diameter of the positioning pin 10. The base plate 3 is positioned with respect to the support member 8 via positioning pins 10. The positioning pin 10 is made of stainless steel and is formed in a cylindrical shape.
The positioning mechanism for positioning is not limited to the positioning pin 10, and may be another positioning mechanism. In addition, pins and holes may also be present in the opposite member.
The head frame 5 is a frame located around the nozzle head 2, and is a physical column, frame, or the like. The head frame 5 is disposed above the base plate 3. The nozzle frame 5 is made of stainless steel. The head frame 5 has a control unit 6 mounted thereon, and includes a fixed mounting portion 5a and a leg portion 5b extending downward from the mounting portion 5 a.
The second pin 19 is provided at the lower end of the leg portion 5 b. The diameter of the second pin 19 is smaller than the diameter of the second hole 20 provided in the base plate 3. The length of the second pin 19 is longer than the thickness (length in the vertical direction) of the base plate 3. The second pin 19 is made of stainless steel and is formed in a cylindrical shape.
A block 15 is provided below the leg portion 5 b. The block 15 is formed in a rectangular parallelepiped shape. The block 15 is made of stainless steel. The blocks 15 are provided at predetermined intervals in a direction orthogonal to the conveying direction.
the first pin 16 is provided at the lower end of the block 15. The diameter of the first pin 16 is smaller than the diameter of the first hole 17 provided in the base plate 3. The length of the first pin 16 is longer than the thickness (length in the vertical direction) of the base plate 3. The first pin 16 is made of stainless steel and is formed in a cylindrical shape.
The head frame 5 is not fixed to the base plate 3 by bolt fastening or the like. That is, in the state of fig. 1, the head frame 5 is separated from the base plate 3 and does not contact the base plate 3.
The control unit 6 is configured by arranging a plurality of rows of substrates extending in the vertical direction. The control unit 6 is placed on the placement portion 5a of the head frame 5 and fixed to the placement portion 5 a. The control unit 6 controls the nozzle head 2. Specifically, the control unit 6 controls the ejection timing of ink ejected from the plurality of nozzle holes 2a of the nozzle head 2.
The flexible wire 7 is formed by forming an adhesive layer on a film-like base insulator film and further attaching a conductive foil thereon. The flexible wires 7 electrically connect the nozzle head 2 with the control unit 6.
The locking portion 13 is formed in an L-shape extending in the vertical direction and the transport direction. The locking portion 13 is made of stainless steel. The locking portion 13 is fixed to a side surface (a surface on the upstream side in the conveying direction and a surface on the downstream side in the conveying direction) of the control unit 6. The locking portion 13 has a function of preventing a load of the control unit 6 and the head frame 5 from being applied to the base plate 3 in cooperation with the receiving portion 14.
the receiving portion 14 is formed in an L-shape extending in the vertical direction and the conveyance direction. The bolster 14 is made of stainless steel. The receiving portion 14 is fixed to the inner surface of the support member 8. The receiving portion 14 has a function of preventing a load of the control unit 6 and the head frame 5 from being applied to the base plate 3 by engaging with the locking portion 13.
The receiving portion 14 and the locking portion 13 may have a configuration other than the above configuration. The locking portion 13 may be detachably connected to the receiving portion 14.
The ink jet device 1 further includes a roller 12. The roller 12 rotates to convey the recording medium 11 such as printing roll paper in the conveyance direction. The ink jet device 1 ejects ink from the nozzle holes 2a of the nozzle head 2 while conveying the recording medium 11 through the roller 12, and records images, characters, and the like on the recording medium 11.
As described above, in the present embodiment, the base plate 3 and the head frame 5 are not fastened and fixed by bolts or the like. Therefore, the base plate 3 and the head frame 5 are separated from each other. The control unit 6 and the head frame 5 are held by the support member 8 via the locking portion 13 and the receiving portion 14.
As a result, the non-contact state between the base plate 3 and the head frame 5 can be maintained. Therefore, the load of the control unit 6 and the head frame 5 is not applied to the base plate 3. Therefore, the surface properties of the base plate 3 in the line head 4 can be prevented from changing, and a decrease in printing accuracy can be suppressed.
(embodiment mode 2)
fig. 2 is a schematic configuration diagram showing a state in which the line head unit 9 according to the embodiment is set on the transport tray 18. The conveyance tray 18 is a member that conveys the line head unit 9.
the line head unit 9 is transported and stored by replacement or the like. At this time, the line head unit 9 is set on the conveyance tray 18. The line head unit 9 needs to maintain its accuracy even during transportation and storage.
The line head unit 9 is not provided in the support member 8 during transportation and storage. Therefore, the control unit 6 and the head frame 5 cannot be held by the support member 8 by the locking portion 13 and the receiving portion 14.
The conveying tray 18 is shaped in a concave shape with a concave upper surface. The conveyor tray 18 is aluminum. The conveyance tray 18 is used to convey the line head unit 9.
A plurality of receiving portions 18a are provided on the conveyance tray 18. The block bodies 15, the first pins 16, and the first holes 17 are provided at the same pitch as the receiving portions 18a, respectively.
As described above, the diameter of the first pin 16 is smaller than the diameter of the first hole 17. And, the length of the first pin 16 is longer than the thickness of the base plate 3. Therefore, the first pins 16 come into contact with the receiving portions 18a of the conveying tray 18 without being positionally restricted by the base plate 3.
It should be noted that the first pin 16 may be located on the conveyance tray 18, and the receiving portion 18a may be located on the block 15.
The second pin 19 is not used in embodiment 2.
Therefore, the control unit 6 and the head frame 5 can be supported by the conveyance tray 18 via the first pins 16. Therefore, the load of the control unit 6 and the head frame 5 is not applied to the base plate 3.
Therefore, the surface properties of the base plate 3 in the line head 4 can be prevented from changing, and a decrease in printing accuracy after conveyance by the conveyance tray 18 can be suppressed.
< method of assembling line head unit 9 and mounting it in support member 8 >
(1) the base plate 3 is turned upside down, and the nozzle head 2 provided with the flexible wire 7 is attached to the base plate 3 from above.
(2) The base plate 3 in a state where the nozzle heads 2 are disposed is turned upside down and disposed on the conveyance tray 18.
(3) The head frame 5 provided with the block 15, the first pin 16, and the second pin 19 is provided on the base plate 3.
(4) the control unit 6 provided with the locking portion 13 is provided on the head frame 5.
(5) The flexible wires 7 above the nozzle head 2 are routed to the control unit 6.
(6) The line head unit 9 on the transport tray 18 assembled as described above is mounted on the up-down lifter provided in the facility with the transport tray 18 and the line head unit 9, and only the line head unit 9 is mounted in the support member 8.
< FIGS. 1 to 2>
The line head unit 9 is removed from the support member 8 from the state of fig. 1 by using the transport tray 18 of fig. 2.
The line head unit 9 on the transport tray 18 is stored in the nozzle head replacement jig 21 of embodiment 3.
the nozzle head replacement jig 21 forms a space below the nozzle head 2, and allows the nozzle head 2 to be attached and detached downward.
(embodiment mode 3)
Fig. 3 is a schematic configuration diagram showing a state in which the line head unit 9 according to the embodiment is set on the nozzle head replacement jig 21.
The nozzle head replacement jig 21 is a component that enables the nozzle head 2 to be attached and detached downward, that is, a component of the nozzle head 2 to be replaced, without removing the base plate 3 in the state where the nozzle head 2 is installed.
A plurality of openings 3a for connecting the flexible wires 7 to the nozzle head 2 are provided in the center portion of the base plate 3. The opening 3a is an opening to the extent that the flexible wire 7 can pass through, which is smaller than the nozzle head 2.
Therefore, the nozzle head 2 cannot be attached to or detached from the head frame 5 side.
As a method of replacing the plurality of nozzle heads 2, the base plate 3 with the nozzle heads 2 set thereon is removed from the line head unit 9, the base plate 3 with the nozzle heads 2 set thereon is turned upside down so that the nozzle heads 2 are turned upward, and then the nozzle heads 2 are attached and detached upward.
alternatively, the base plate 3 with the nozzle head 2 set thereon is removed from the line head unit 9, and is stored in a jig such as the nozzle head replacement jig 21, and the nozzle head 2 is attached and detached downward.
In any case, although it is necessary to remove the base plate 3 in the state where the nozzle heads 2 are provided from the line head unit 9, it is possible to make the nozzle heads 2 detachable downward without removing the base plate 3 in the state where the nozzle heads 2 are provided, if embodiments 2 and 3 are used.
The second pin 19 may be similarly positioned in the nozzle head replacement jig 21.
in the same manner as in embodiment 2, when the line head unit 9 is provided on the nozzle head replacement jig 21, it is necessary to maintain the accuracy of the line head unit 9.
In this state, the line head unit 9 is not provided in the support member 8. Therefore, the control unit 6 and the head frame 5 cannot be held by the support member 8 by the locking portion 13 and the receiving portion 14.
in this state, the line head unit 9 is not disposed on the conveyance tray 18. Therefore, the control unit 6 and the head frame 5 cannot be supported by the conveyance tray 18 via the first pins 16.
The nozzle head replacement jig 21 is formed in a box shape having an opening on the upper surface. The nozzle head replacement jig 21 is made of steel. The nozzle head replacement jig 21 is used to replace the nozzle head 2.
The nozzle head replacement jig 21 is provided with a plurality of receiving portions 21 a. The second pins 19 and the second holes 20 are provided at the same pitch as the receiving portions 21 a.
As described above, the diameter of the second pin 19 is smaller than the diameter of the second hole 20. And, the length of the second pin 19 is longer than the thickness of the base plate 3. Therefore, the second pin 19 comes into contact with the receiving portion 21a of the nozzle head replacement jig 21 without being restricted in position by the base plate 3.
Therefore, the control unit 6 and the head frame 5 can be supported by the nozzle head replacement jig 21 via the second pins 19. Therefore, the load of the control unit 6 and the head frame 5 is not applied to the base plate 3.
Therefore, the surface properties of the base plate 3 in the line head 4 are prevented from changing, and a decrease in printing accuracy after the nozzle head 2 is replaced with the nozzle head replacement jig 21 can be suppressed.
In the present embodiment, the first pin 16 is used when the line head unit 9 is set on the transport tray 18, and the second pin 19 is used when the line head unit 9 is set on the nozzle head replacement jig 21.
In other words, the pins used when the line head unit 9 is set on the transport tray 18 and the pins used when the line head unit 9 is set on the nozzle head replacement jig 21 are used separately.
Therefore, the line head unit 9 can be handed over to the nozzle head replacement jig 21 in a state where the line head unit 9 is set on the transport tray 18.
Then, the line head unit 9 can be transferred to the transport tray 18 in a state where the line head unit 9 is set in the nozzle head replacement jig 21.
It is not good that the first pin 16 and the second pin 19 are identical pins. When the line head unit 9 is transferred or received from the transport tray 18 to the nozzle head replacement jig 21, the transfer cannot be performed if the first pins 16 and the second pins 19 are the same pins.
That is, in the state of fig. 2, the nozzle head replacement jig 21 of fig. 3 covers the conveyance tray 18 from below. That is, the conveyance tray 18 enters the opening of the nozzle head replacement jig 21.
The nozzle head replacement jig 21 supports the line head unit 9 via the second pin 19. As a result, the conveyance tray 18 is removed.
The above-described operations may be performed in reverse from the state of fig. 3 to the state of fig. 2.
(Overall)
Embodiments 1 to 3 may be combined.
[ industrial applicability ]
According to the line head unit of the present invention, it is possible to prevent the surface properties of the base plate in the line head from changing, thereby suppressing a decrease in printing accuracy and increasing industrial applicability.
Claims (16)
1. A line head unit comprising:
A base plate holding the nozzle head;
A nozzle frame penetrating the base plate in the vertical direction;
A control unit fixed to the head frame and controlling the nozzle head; and
And a locking part which is fixed to the control unit and locks the control unit to the support member.
2. The line head unit according to claim 1,
The base plate is placed on the support member,
The locking portion is engaged with a receiving portion fixed to the support member.
3. The line head unit according to claim 1,
The base plate has a positioning mechanism for positioning in the support member.
4. The line head unit according to claim 1,
A first pin penetrating the base plate in the vertical direction is provided at the lower part of the head frame,
The base plate is provided with a first hole through which the first pin passes.
5. The line head unit according to claim 4,
The first pin is in contact with a transport tray that transports the line head unit,
The control unit is supported by the conveyance tray via the first pin.
6. The line head unit according to claim 1,
the line head unit includes a transport tray for transporting the line head unit, the transport tray is provided with a first pin penetrating the base plate in the vertical direction,
The base plate is provided with a first hole through which the first pin passes.
7. the line head unit according to claim 6,
The first pin is in contact with the showerhead frame,
The control unit is supported by the conveyance tray via the first pin.
8. The line head unit according to claim 1,
A second pin penetrating the base plate in the up-down direction is provided at the lower end of the head frame,
The base plate is provided with a second hole through which the second pin passes.
9. The line head unit according to claim 8,
The second pin is in contact with the nozzle head replacement jig,
The control unit is supported by the nozzle head replacement jig via the second pin.
10. The line head unit according to claim 1,
The line head unit includes a nozzle head replacement jig for replacing the nozzle head, the nozzle head replacement jig being provided with a second pin penetrating the base plate in the vertical direction,
The base plate is provided with a second hole through which the second pin passes.
11. The line head unit according to claim 10,
The second pin is in contact with the showerhead frame,
The control unit is supported by the nozzle head replacement jig via the second pin.
12. A line head unit comprising:
A base plate holding the nozzle head;
A nozzle frame penetrating the base plate in the vertical direction; and
A control unit fixed to the head frame and controlling the nozzle head,
A block body is arranged at the lower part of the spray head frame, the block body is provided with a first pin which penetrates through the base plate along the vertical direction,
The base plate is provided with a first hole through which the first pin passes.
13. The line head unit according to claim 12,
The first pin is in contact with the delivery tray,
The control unit is supported by the conveyance tray via the first pin.
14. A line head unit comprising:
a base plate holding the nozzle head;
A nozzle frame penetrating the base plate in the vertical direction; and
A control unit fixed to the head frame and controlling the nozzle head,
A second pin penetrating the base plate in the up-down direction is provided at the lower end of the head frame,
The base plate is provided with a second hole through which the second pin passes.
15. The line head unit according to claim 14,
The second pin is in contact with the replacement clip,
The control unit is supported by the replacement jig via the second pin.
16. the line head unit according to claim 12,
The base plate has a positioning mechanism for positioning in the support member.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018107522 | 2018-06-05 | ||
| JP2018-107522 | 2018-06-05 | ||
| JP2018227856A JP7122611B2 (en) | 2018-06-05 | 2018-12-05 | line head unit |
| JP2018-227856 | 2018-12-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110561913A true CN110561913A (en) | 2019-12-13 |
| CN110561913B CN110561913B (en) | 2021-05-18 |
Family
ID=68772804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910060728.6A Active CN110561913B (en) | 2018-06-05 | 2019-01-21 | Line head unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110561913B (en) |
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