JP2010099985A - Method for manufacturing liquid jetting head - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make an ink supply needle attached state suitable regardless of a filter welded state to a base member.
While fixing the ink supply needle 32 toward the filter in the mold, a resin for a fixing portion 34 for injecting the ink supply needle 32 and the base member 31 together with the filter is injected, and the base member is injected. Regardless of the welded state of the filter with respect to 31, the height of the ink supply needle 32 is kept uniform.
[Selection] Figure 7

Description

  The present invention relates to a method for manufacturing a liquid ejecting head that ejects liquid, and more particularly, to a method for manufacturing an ink jet recording head that ejects ink as a liquid.

  In general, an ink jet recording head, which is a typical example of a liquid ejecting head, has a base member in which an ink cartridge as a liquid storage means filled with ink is detachably inserted into an ink supply needle as a supply path member. Some of them hold an ink supply needle. This is because an ink flow path connected to the head main body is formed in the base member, and ink supplied from the ink supply needle is supplied to the head main body as the head member via the ink flow path. The head main body is provided with pressure generating means such as a piezoelectric element, and the ink supplied to the head main body is ejected from the nozzles by driving the pressure generating means.

  In such an ink jet recording head, there is a possibility that bubbles are mixed in the ink of the ink cartridge, or bubbles are mixed in the ink in the ink flow path when the ink cartridge is attached or detached. When the mixed bubbles are supplied to the head body, the supply of ink is hindered by the bubbles, and there is a possibility that ejection failure such as missing dots may occur.

  In order to eliminate defective ink supply due to air bubbles, a filter for removing air bubbles and dust in the ink is provided between the ink supply needle inserted into the ink cartridge and the base member (ink flow path). (For example, refer to Patent Document 1). The filter and the base member are fixed by heat welding or the like, and the ink supply needle and the base member are fixed by ultrasonic welding or the like.

  In the configuration disclosed in Patent Document 1, since a plurality of ink supply needles are individually ultrasonically welded to the base member, the number of manufacturing steps and the manufacturing cost are increased. Since the filter is individually fixed to the base member, the mounting position of the filter varies with respect to the height direction of the ink supply needle. When the integrated ink supply needle is used, the filter is fixed to the base member. In addition, there is a problem that the interval between the ink supply needle and the base member varies.

Such a problem exists not only in an ink jet recording head but also in a liquid ejecting head that ejects liquid other than ink.
JP 2000-2111130 A

  SUMMARY An advantage of some aspects of the invention is to provide a method of manufacturing a liquid jet head in which a supply path member is more suitably attached to a base member.

According to another aspect of the invention, there is provided a method of manufacturing a liquid jet head according to the present invention. Preparing a base member to which a filter to be welded and a plurality of supply path members are prepared, and while individually pressing the plurality of supply path members against the filter side of the base member, the plurality of supply path members and the A molding step of integrally molding and fixing by injecting resin around the base member, and an attachment step of attaching a liquid jet head member having a nozzle to the base member are provided.
According to this, since the resin that integrates the supply path member with the base member is injected together with the filter while individually pressing the supply path member toward the filter side, it is preferable regardless of the filter mounting position with respect to the base member. A supply member can be attached. That is, even if the filter mounting position is deviated with respect to the base member, the supply path member can be integrated with the base member in a uniform state.

The preparing step prepares a plurality of the supply path members by injecting resin into the supply path mold, and the molding step includes a plurality of the supply path members together with at least a part of the supply path mold. In addition to pressing individually to the filter side of the member, when injecting resin around the plurality of supply path members and the base member, it is integrally molded by using at least a part of the supply path mold Features.
According to this, a some supply path member can be suitably attached with respect to a base member using a formwork.

The supply path mold is provided with a mold part for forming the supply path member, and the molding step performs integral molding using integral molding and relatively moves the mold part and the integral molding. It is characterized by.
According to this, shaping | molding of a supply member and integration of a supply path member and a base member can be implemented continuously.

  1 is a schematic perspective view of an ink jet recording apparatus provided with a liquid jet head manufactured by a method according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the ink jet recording head, and FIG. 3 is a supply member. 4 is a top view, and FIG. 4 is a view taken along line IV-IV in FIG.

An ink jet recording apparatus 10 will be described with reference to FIG.
As shown in the figure, an ink jet recording apparatus 10 has an ink jet recording head (recording head) 11, which is an example of a liquid ejecting head that ejects ink droplets, fixed to a carriage 12. A plurality of ink cartridges 13 serving as liquid storage units are detachably fixed to the recording head 11. The ink cartridge 13 stores inks of different colors such as black (B), light black (LB), cyan (C), magenta (M), and yellow (Y).

  The carriage 12 on which the recording head 11 is mounted is provided on a carriage shaft 15 attached to the apparatus main body 14 so as to be movable in the axial direction. The carriage 12 is moved along the carriage shaft 15 by transmitting the driving force of the drive motor 16 to the carriage 12 via a plurality of gears and a timing belt 17 (not shown).

  On the other hand, the apparatus main body 14 is provided with a platen 18 along the carriage shaft 15, so that a recording medium S such as paper fed by a paper feeding device (not shown) is conveyed on the platen 18. ing.

  A capping device 20 having a cap member 19 that seals the nozzle forming surface of the recording head 11 is provided at a position corresponding to the home position of the carriage 12, that is, near one end of the carriage shaft 15. . Ink drying is prevented by sealing the nozzle forming surface in which the nozzle opening is formed with the cap member 19. The cap member 19 also functions as an ink receiver during the flushing operation.

The recording head 11 will be described with reference to FIGS.
As shown in FIG. 2, the recording head 11 is fixed to a supply member 30 such as a cartridge case to which an ink cartridge 13 that is a liquid storage unit is fixed, and a surface of the supply member 30 opposite to the ink cartridge 13. A head main body 220 and a cover head 240 provided on the liquid ejecting surface side of the head main body 220 are provided.

  As shown in FIGS. 2 to 4, the supply member 30 includes a base member 31 and an ink supply needle 32 as a supply path member. An ink flow path 36 connected to the head main body 220 is formed in the base member 31, and the ink supplied to the ink supply needle 32 is supplied to the head main body 220 via the ink flow path 36. An ink cartridge 13 (see FIG. 1) is detachably mounted on the supply member 30 and is inserted into the ink supply needle 32 ink cartridge 13 (see FIG. 1) to be supplied with ink.

  The base member 31 corresponding to the ink supply needle 32 is provided with an opening 41 facing the ink flow path 36, and a filter 33 is disposed on the upper surface of the opening 41. The filter 33 is fixed to the base member 31 by welding a peripheral edge around the opening 41. The lower end of the ink supply needle 32 is fixed to the base member 31 with the filter 33 interposed therebetween. Resin is filled around the opening 41 of the base member 31 and the lower end of the ink supply needle 32 to form a fixing portion 34, and the fixing portion 34 connects the periphery of the opening 41 of the base member 31 and the lower end of the ink supply needle 32. It is integrated with the filter 33.

  The ink supply needle 32 is integrated with the base member 31 together with the filter 33 by a manufacturing method described later. If the ink supply needle 32 is formed of the same resin as the resin of the fixing portion 34, it is desirable to have high integrated adhesion, but another type of resin may be used. The fixing portion 34 is provided on the surface of the base member 31 on the opening 41 side, and covers the lower end (part) of the ink supply needle 32 so that the base member 31 and the ink supply needle 32 are held in a state where the filter 33 is sandwiched. It is fixed. Since the ink supply needle 32 and the base member 31 are integrated by the fixing portion 34, ink leakage at the joint portion is prevented.

A method for manufacturing a supply member for an ink jet recording head will be described with reference to FIGS.
FIG. 5 illustrates the forming process of the supply member, FIG. 6 illustrates the concept of the mold being opened, FIG. 7 illustrates a cross-section during mold clamping, FIG. 8 illustrates details of the main part in FIG. Shows the cross section at the time of mold release.

  In the present embodiment, a mold as a mold is used, and the upper mold 50 is provided with a first mold part 51 and a second mold part 52 provided with a female mold part of the ink supply needle 32. By rotating the upper mold 50 (by moving the mold part), the ink supply needle 32 is formed on one side, and the base member 31 and the ink supply needle 32 are fixed on the other side. The part 34 is formed. By repeating the turning operation of the upper die 50, the ink supply needle 32 and the fixing portion 34 are formed continuously.

  That is, as shown in FIG. 5, the upper mold 50 is composed of a first mold part 51 and a second mold part 52, and on the surface facing the lower mold 53 of the first mold part 51 and the second mold part 52, Two mold parts 51a and 52a used for molding the ink supply needle 32 are provided. A portion (left side in the figure) where the fixing portion 34 of the lower die 53 is molded is provided with a die portion 53a for setting the base member 31 to which the filter 33 is welded. Resin is injected into the two mold parts 51a (52a) from one passage.

  The molded part of the base member 31 to which the filter 33 is welded is referred to as a base molded part 45, and the supply member 30 after molding is referred to as a molded part 46.

  FIG. 5A shows a state in which the fixing part 34 is molded and integrated over the ink supply needle 32 and the base member 31 in the first mold part 51, and only the ink supply needle 32 is molded in the second mold part 52. is there. The amount of resin filled in the fixed portion 34 and the amount of resin filled in the mold portion 52a (51a) are adjusted by adjusting the thickness and diameter of the runner 47, and the fixed portion 34 and the mold. Resin is supplied to the part 52a (51a) collectively from one resin source.

  FIG. 5B shows a state where the fixing portion 34 and the ink supply needle 32 are molded and released. In this state, the molded part 46 is taken out from the mold part 53a, and the base molded part 45 is set in the mold part 53a. At the same time, the upper mold 50 is turned so that the mold part 52 a of the second mold part 52 faces the mold part 53 a of the lower mold 53. As a result, as shown in FIG. 5C, the ink supply needle 32 and the base molding component 45 face each other, and the mold part 51a of the first mold part 51 in which the ink supply needle 32 is not molded is replaced with the mold part 53a. Opposite the opposite side.

  In this state, the mold is clamped and the resin is injected, and as shown in FIG. 5D, the fixed part 34 is molded over the ink supply needle 32 and the base molded part 45 by the second mold part 52 and integrated. Then, only the ink supply needle 32 is formed by the first mold part 51. That is, the first mold part 51 and the second mold part 52 are in the reverse state shown in FIG.

  By repeating the above operations, the ink supply needle 32 and the portion (fixed portion 34) where the ink supply needle 32 and the base molded component 45 are integrated are continuously formed.

  In the present embodiment, the ink supply needle 32 is relatively pressed toward the base molding component 45 when the portion (fixed portion 34) where the ink supply needle 32 and the base molding component 45 are integrated is molded. Then, the resin is injected into the fixing portion 34. For this reason, even if the mounting position of the filter 33 of the base molded part 45 is deviated, that is, the mounting position of the filter 33 with respect to the base member 31 varies, the ink supply needle 32 is in a uniform state with the filter 33 interposed therebetween. Thus, the base member 31 can be integrated.

  A configuration (manufacturing method of the present embodiment) for relatively pressing the ink supply needle 32 toward the base molded component 45 will be described with reference to FIGS. In the illustrated example, details of a state corresponding to FIG.

  As shown in FIG. 6, the upper die 50 is divided into an upper die 50a and a lower die 50b, and a gap 54 is formed between the upper die 50a and the lower die 50b. The first mold part 51 and the second mold part 52 are each supported by a frame mold 55, and the frame mold 55 on the side facing the base molded component 45 supports the lower mold 50b so as to be movable with respect to the upper mold 50a. It has become. Further, the frame mold 55 on the side that does not face the base molded component 45, that is, the frame mold 55 on the side that molds the ink supply needle 32, supports the upper mold 50a and the lower mold 50b with the gap 54 maintained. It has become.

  FIG. 7 shows a state in which the first mold part 51 faces the base molded part 45 and the second mold part 52 does not face the base molded part 45, that is, the fixed part 34 is molded by the first mold part 51. The ink supply needle 32 is molded by the second mold part 52.

  As shown in FIG. 7A, a molding die portion 56 is provided at the center portion of the second die portion 52 of the upper die 50, and an upper die 50 a and a lower die 50 b are arranged around the molding die portion 56. ing. The molding die 56 is supported by the frame die 55 integrally with the upper die 50a, and the lower die 50b is supported by the frame die 55 with the gap 54 maintained between the upper die 50a.

  As shown in FIG. 7B, a molding die portion 56 is provided at the central portion of the first die portion 51 of the upper die 50, and an upper die 50 a and a lower die 50 b are arranged around the molding die portion 56. ing. The molding die 56 is supported by the frame die 55 integrally with the upper die 50a, and the lower die 50b is moved to a state where the gap 54 is filled with respect to the upper die 50a and supported by the frame die 55.

  Two mold parts 51a and 52a are provided in each of the first mold part 51 of the upper mold 50 and the mold part 56 of the second mold part 52, and the mold part 56 on the upper side of the mold parts 51a and 52a is provided in the mold part 56 above. The pressing rod 57 is fixed. The lower end portion of the pressing rod 57 comes into contact with the top portions of the mold portions 51a and 52a (the top portion of the ink supply needle 32). That is, the pressing rod 57 is fixed to the molding die portion 56 integrated with the upper die 50a, and the lower end portion of the pressing rod 57 contacts the top of the ink supply needle 32, so that the ink supply needle 32 is pressed during molding. It is kept pressed by the rod 57.

  As shown in FIG. 7 (a), the second mold part 52 is clamped between the lower mold 53 and the lower mold 53 with the gap 54 maintained between the lower mold 50b and the upper mold 50a. Resin is injected into the portion 52 a to mold the ink supply needle 32.

  As shown in FIGS. 7B and 8, in the first mold 51, the lower mold 50 b is pushed by the base molded part 45, the gap 54 is filled and the mold is clamped, and resin is injected to fix the fixed part 34. (See FIG. 9) is formed. At this time, the base molded part 45 rises to the upper mold 50a side by the amount of the gap 54 (core back), and the upper mold 50a is lowered relative to the base molded part 45. The upper mold 50a has the ink supply needle 32 whose top position is regulated by the pressing rod 57, and the upper mold 50a descends relative to the base molding component 45, so that the ink supply needle 32 is molded into the base. The parts 45 are individually pressed by the pressing rod 57 (a force is applied in the direction of the arrow). That is, the ink supply needle 32 is kept pressed by the pressing rod 57 during molding.

  For this reason, even if the mounting position of the filter 33 of the base molded part 45 is deviated, that is, the mounting position of the filter 33 with respect to the base member 31 varies, the ink supply needle 32 holds the pressing rod 57 across the filter 33. In this state, the fixing portion 34 is formed so that the ink supply needle 32 is integrated with the base member 31 in a uniform state. be able to.

  After forming the ink supply needle 32 in the second mold part 52 and forming the fixing part 34 in a state where the ink supply needle 32 is pressed in the first mold part 51, the upper mold 50 and the lower mold 53 are formed. Mold is released. As shown in FIG. 9, a base molded part 45 (supply member 30) in which the base member 31 to which the filter 33 is welded and the ink supply needle 32 are integrated with the fixed portion 34 is completed on the mold portion 53 a.

  In the above-described embodiment, the upper die 50 is swung between the upper die 50 and the lower die 53, but not limited to this, the upper die 50 and the lower die 53 may be relatively moved.

  A head main body 220 is provided on the side opposite to the ink flow path 36 of the supply member 30 manufactured by the manufacturing method described above, that is, on the side opposite to the ink supply needle 32.

  The head body 220 will be described with reference to FIGS. FIG. 10 shows an exploded perspective view of the head body, and FIG. 11 shows a sectional view of the head body.

  As shown in the figure, the flow path forming substrate 60 constituting the head main body 220 is made of a silicon single crystal substrate in this embodiment, and an elastic film 550 made of silicon dioxide is formed on one surface thereof. The flow path forming substrate 60 is formed with two rows in which pressure generation chambers 62 partitioned by a plurality of partition walls are arranged in parallel in the width direction by anisotropic etching from the other side.

  On the outer side in the longitudinal direction of the pressure generating chambers 62 in each row, a communicating portion 63 that communicates with a reservoir portion 81 provided on a reservoir forming substrate 80 to be described later and constitutes a reservoir 100 serving as a common ink chamber for each pressure generating chamber 62. Is formed. The communication portion 63 is in communication with one end portion in the longitudinal direction of each pressure generating chamber 62 through the ink supply path 64.

  That is, in this embodiment, the pressure generation chamber 62, the communication part 63, and the ink supply path 64 are provided as liquid flow paths formed on the flow path forming substrate 60.

  A nozzle plate 70 in which nozzle openings 71 are formed is fixed to the opening surface side of the flow path forming substrate 60 via an adhesive 400. Specifically, a plurality of nozzle plates 70 are provided so as to correspond to the plurality of head main bodies 220, and the nozzle plates 70 have a slightly larger area than an exposed opening 241 of the cover head 240 described in detail later. It is fixed with an adhesive or the like in a region overlapping with the cover head 240.

  The nozzle opening 71 of the nozzle plate 70 is formed at a position communicating with the pressure generation chamber 62 on the side opposite to the ink supply path 64. In this embodiment, since two rows in which the pressure generation chambers 62 are arranged in parallel are provided on the flow path forming substrate 60, two rows of nozzle rows 71A in which the nozzle openings 71 are arranged in parallel are provided in one head body 220. ing. In the present embodiment, the surface of the nozzle plate 70 where the nozzle openings 71 are opened is the liquid ejection surface. Examples of the nozzle plate 70 include a silicon single crystal substrate and a metal substrate such as stainless steel (SUS).

  On the other hand, on the side opposite to the opening surface of the flow path forming substrate 60, on the elastic film 550, a lower electrode film made of metal, a piezoelectric layer made of a piezoelectric material such as lead zirconate titanate (PZT), A piezoelectric element 300 is formed by sequentially laminating an upper electrode film made of metal.

  A reservoir forming substrate 80 having a reservoir portion 81 that constitutes at least a part of the reservoir 100 is joined on the flow path forming substrate 60 on which the piezoelectric element 300 is formed. In this embodiment, the reservoir portion 81 is formed across the reservoir forming substrate 80 in the thickness direction and across the width direction of the pressure generating chamber 62, and as described above, the reservoir portion 81 and the communication portion 63 of the flow path forming substrate 60. A reservoir 100 that is communicated and serves as a common ink chamber for the pressure generating chambers 62 is configured.

  A piezoelectric element holding portion 82 having a space that does not hinder the movement of the piezoelectric element 300 is provided in a region facing the piezoelectric element 300 of the reservoir forming substrate 80.

  On the reservoir forming substrate 80, a drive circuit 110 made of a semiconductor integrated circuit (IC) or the like for driving each piezoelectric element 300 is provided. Each terminal of the drive circuit 110 is connected to a lead wiring drawn from the individual electrode of each piezoelectric element 300 via a bonding wire or the like (not shown). Each terminal of the drive circuit 110 is connected to the outside via an external wiring 111 such as a flexible printed circuit (FPC), and receives various signals such as a print signal from the outside via the external wiring 111. Yes.

  A compliance substrate 140 is bonded onto the reservoir forming substrate 80. An ink introduction port 144 for supplying ink to the reservoir 100 is formed in a region facing the reservoir 100 of the compliance substrate 140 by penetrating in the thickness direction. In addition, the region other than the ink inlet 144 in the region facing the reservoir 100 of the compliance substrate 140 is a flexible portion 143 formed thin in the thickness direction, and the reservoir 100 is sealed by the flexible portion 143. Has been. This flexible portion 143 provides compliance within the reservoir 100. A head case 230 is fixed on the compliance substrate 140.

  The head case 230 communicates with the ink introduction port 144 and also communicates with the ink flow path 36 of the supply member 30, and is provided with an ink supply communication passage 231 that supplies ink from the supply member 30 to the ink introduction port 144. . In the head case 230, a groove 232 is formed in a region facing the flexible portion 143 of the compliance substrate 140, and the flexible portion 143 is appropriately deformed. The head case 230 is provided with a drive circuit holding portion 233 penetrating in the thickness direction in a region facing the drive circuit 110 provided on the reservoir forming substrate 80, and the external wiring 111 holds the drive circuit holding The drive circuit 110 is connected through the portion 233.

  Each member constituting the head main body 220 is provided with two pin insertion holes 234 into which pins for positioning the respective members are inserted at the time of assembly. Then, the head main body 220 is integrally combined by inserting the pins into the pin insertion hole 234 and joining the members while performing relative positioning of the respective members.

  As shown in FIG. 2, the head main body 220 held by the supply member 30 via the head case 230 is relatively moved by a cover head 240 having a box shape so as to cover the liquid ejection surface side of the five head main bodies 220. Positioned and held. The cover head 240 has an exposed opening 241 that exposes the nozzle opening 71, an exposed opening 241, and both ends of the nozzle openings 71 arranged in parallel in at least the nozzle row 71 </ b> A on the liquid ejection surface of the head body 220. And a joint portion 242 to be joined.

  In the present embodiment, the joining portion 242 extends between the frame portion 243 provided along the outer periphery of the liquid ejecting surface across the plurality of head main bodies 220 and the adjacent head main body 220, and is an exposed opening. The frame portion 243 and the beam portion 244 are joined to the liquid ejecting surface of the head main body 220, that is, the surface of the nozzle plate 70. The cover head 240 is provided with a side wall portion 245 extending on the side surface side of the liquid ejecting surface of the head main body 220 so as to bend over the outer peripheral edge portion of the liquid ejecting surface.

  Since the cover head 240 is configured such that the joint portion 242 is bonded to the liquid ejecting surface of the head main body 220, the step between the liquid ejecting surface and the cover head 240 can be reduced, and the liquid ejecting surface can be wiped or sucked. Even if the operation is performed, it is possible to prevent ink from remaining on the liquid ejection surface.

  Further, since the adjacent head main bodies 220 are blocked by the beam portions 244, ink does not enter between the adjacent head main bodies 220, and deterioration due to ink such as the piezoelectric element 300 and the drive circuit 110 and the like. Destruction can be prevented. Further, since the liquid ejection surface of the head main body 220 and the cover head 240 are bonded without any gap by an adhesive, the recording medium S is prevented from entering the gap, and the cover head 240 is deformed and paper jam occurs. Can be prevented.

  Further, since the side wall portion 245 covers the outer peripheral edge portions of the plurality of head main bodies 220, it is possible to reliably prevent the ink from flowing into the side surfaces of the head main bodies 220. In addition, since the cover head 240 is provided with the joint portion 242 that is joined to the liquid ejecting surface of the head main body 220, each nozzle row 71A of the plurality of head main bodies 220 is positioned with high accuracy with respect to the cover head 240. Can be joined.

  Examples of the cover head 240 include a metal material such as stainless steel, and a metal plate may be formed by press working or may be formed by molding. Further, the cover head 240 can be grounded by using a conductive metal material.

  The joining of the cover head 240 and the nozzle plate 70 is not particularly limited, and examples thereof include adhesion using a thermosetting epoxy adhesive or an ultraviolet curable adhesive.

  The ink jet recording head 11 according to this embodiment takes in ink from the ink cartridge 13 from the ink flow path 36, and passes through the ink supply communication path 231 and the ink introduction port 144 to reach the inside from the reservoir 100 to the nozzle opening 71. After the ink is filled with ink, a voltage is applied to each piezoelectric element 300 corresponding to each pressure generating chamber 62 in accordance with a recording signal from the drive circuit 110, and the elastic film 550 and the piezoelectric element 300 are bent and deformed. The pressure in the pressure generating chamber 62 increases and ink droplets are ejected from the nozzle openings 71.

  In the above-described embodiment example, the upper mold 50 of the upper mold 50 and the lower mold 53 is swiveled. However, the present invention is not limited to this, and the upper mold 50 and the lower mold 53 may be relatively moved.

  In the above-described embodiment, the present invention has been described by exemplifying the ink jet recording head 11 that ejects ink droplets. However, the present invention is widely intended for all liquid ejecting heads. Examples of the liquid ejecting head include a recording head used for an image recording apparatus such as a printer, a color material ejecting head used for manufacturing a color filter such as a liquid crystal display, an organic EL display, and an electrode formation such as an FED (field emission display). Electrode material ejecting heads used in manufacturing, bioorganic matter ejecting heads used in biochip production, and the like.

1 is a schematic perspective view of an ink jet recording apparatus. 2 is an exploded perspective view of an ink jet recording head. FIG. It is a top view of a supply member. It is the IV-IV line arrow directional view in FIG. It is explanatory drawing of the shaping | molding process of a supply member. It is a conceptual diagram of the state which opened the metal mold | die. It is sectional drawing at the time of mold clamping. It is a principal part detail drawing in FIG. It is sectional drawing at the time of mold release. It is a disassembled perspective view of a head main body. It is sectional drawing of a head main body.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 Inkjet recording apparatus (liquid ejecting apparatus), 11 Inkjet recording head (liquid ejecting head), 30 Supply member, 31 Base member, 32 Ink supply needle, 33 Filter, 34 Fixing part, 36 Ink flow path, 50 Upper mold | type , 51 1st mold part, 52 2nd mold part, 53 Lower mold, 54 Gap, 56 Mold part, 57 Pressing bar

Claims (3)

In a method of manufacturing a liquid jet head having a liquid supply path for supplying liquid from a liquid storage means to a nozzle opening,
A preparation step of preparing a base member to which a filter forming the liquid supply path is welded and a plurality of supply path members;
A molding step in which the plurality of supply path members are individually pressed against the filter side of the base member and integrally molded by injecting resin around the plurality of supply path members and the base member; ,
An attachment step of attaching a liquid jet head member having a nozzle to the base member;
A method of manufacturing a liquid jet head, comprising: The method of manufacturing a liquid jet head according to claim 1,
The preparation step prepares a plurality of supply path members by injecting resin into a supply path mold,
The molding step individually presses the plurality of supply path members together with at least a part of the supply path mold to the filter side of the base member,
A method of manufacturing a liquid jet head, comprising: integrally molding at least part of the supply path mold when injecting resin around a plurality of the supply path members and the base member. In the manufacturing method of the liquid jet head according to claim 1 or 2,
The supply path mold is provided with a mold part for forming the supply path member,
The molding step performs integral molding using integral molding,
A method of manufacturing a liquid jet head, wherein the mold part and the integral molding are relatively moved.

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