JP2007090609A - Printer and embroidery sewing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enlarge a printing region without increasing the scale of a printer by enabling printing not only on a constant speed section of a cloth retaining frame but also on an accelerating section and an deceleration section of a retaining members provided on both sides of the cloth retaining frame. <P>SOLUTION: At a start of printing, the cloth retaining frame 10 is printed while being accelerated and moved so as to overlap the accelerating section of the cloth retaining frame 10 on the decelerating section where a print head 66 reaches a first speed switching position after the print head is accelerated in the accelerating section from the left moving start position to the left limit position of the cloth retaining frame 10. The print head 66 stops moving and executes printing at the constant speed moving of the cloth retaining frame 10 in the constant speed region continued from the accelerating section of the cloth retaining frame 10. Thus, the print head 66 is accelerated and moved to execute printing so as to overlap the accelerating section of the print head 66 on the decelerating section from when the moving position of the cloth retaining frame 10 reaches a second speed switching position of the cloth retaining frame 10 until the moving position reaches the right limit position. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a printer and an embroidery sewing machine, and more particularly to a printer that is printed on an object to be printed held by a holding member with an inkjet head.

  2. Description of the Related Art Conventional ink jet printers include a color print head having a large number of ink jet nozzles, reciprocating the print head in a main scanning direction parallel to the printing direction, and moving the print head in the sub-scanning direction. Color printing is performed by ejecting ink onto a size paper.

For example, in the ink jet recording apparatus described in Patent Document 1, a carriage mounted with a print head and color ink is arranged on a carriage shaft that supports both ends of a main body frame, and the carriage is reciprocated through a belt by a CR motor. Ink droplets are ejected from a plurality of ejection ports of the print head, and various images are recorded on the printing paper supplied by the platen roller.

By the way, this ink jet recording apparatus is provided with a printing area for recording on a printing paper while the carriage moves at a predetermined constant speed. On both sides of the print area, an acceleration area for accelerating the carriage from the stopped state to a predetermined speed and a deceleration area for decelerating from the predetermined speed to the stopped state are provided. However, in these acceleration / deceleration areas, the image is disturbed, so that printing is not performed.
Japanese Patent No. 3166606 (pages 3 to 5, FIGS. 7 and 8)

  In the ink jet recording apparatus described in Patent Document 1, acceleration / deceleration areas that are not directly used for printing are provided on both sides of a printing area, the printing paper is supported by a platen, and the carriage moves along the carriage axis. Thus, the carriage shaft for moving the carriage becomes longer by the length of the two acceleration / deceleration areas that are not used directly for printing and are provided in addition to the printing area where printing is actually performed. . That is, there is a problem that the entire inkjet recording apparatus becomes larger than the actual size of the printing area.

  In order to expand the printing range, it is conceivable to lengthen the printing area. However, the acceleration / deceleration area is always required on both the left and right sides of the printing area. It becomes longer according to the width dimension of the acceleration / deceleration area on both sides, and the enlargement of the ink jet recording apparatus is unavoidable.

  The present invention has been made to solve the above-described problems. By enabling printing in the acceleration / deceleration areas provided on both sides of the printing area, the printing range can be increased without increasing the size of the printer. The purpose is to expand.

The printer according to claim 1 is a print head having a plurality of inkjet nozzles, a holding member that holds a substrate, and a transfer mechanism that moves the holding member relative to the print head in the main scanning direction and the sub-scanning direction. A head moving mechanism capable of moving the print head back and forth in the main scanning direction, and a holding member. The transfer mechanism and the head moving mechanism are overlapped so that the acceleration section in which the print head is accelerated in the main scanning direction overlaps the deceleration section in which the print head is accelerated and moved to a predetermined speed in a direction opposite to the direction in which the holding member is accelerated. In the acceleration section, the print head prints on the substrate, and the holding section is decelerated in the main scanning direction. While the drive mechanism and the head moving mechanism are driven and controlled so as to overlap the acceleration section in which the head is accelerated and moved to a predetermined speed in the direction opposite to the direction in which the holding member decelerates, the print head also applies to the substrate in the deceleration section. And a printing control means for printing.

  At the start of printing, first, the holding member is accelerated and moved so that the acceleration section of the holding member overlaps the deceleration section in which the print head accelerates to a predetermined speed in a direction opposite to the direction in which the holding member accelerates and then decelerates. Therefore, the moving speed of the print head with respect to the printed material is maintained at a predetermined speed optimum for normal printing even in the acceleration section of the holding member, and printing is executed on the printed material also in the acceleration section of the holding member.

  On the other hand, at the end of printing, the holding member is decelerated and moved so that the deceleration section of the holding member overlaps the acceleration section in which the print head accelerates to a predetermined speed in the direction opposite to the direction in which the holding member decelerates. Even in the deceleration zone of the member, the moving speed of the print head relative to the printing material is maintained at a predetermined speed that is optimal for normal printing, and printing is also performed on the printing material in the deceleration zone of the holding member.

  According to a second aspect of the present invention, in the printer according to the first aspect, the print control means stops the movement of the print head in a constant speed section between the acceleration section and the deceleration section of the holding member and moves the holding member at a predetermined speed in the main scanning direction. The print head prints on the printing material while moving to.

  According to a third aspect of the present invention, in the printer according to the first or second aspect, the print control means is configured such that the relative movement speed between the print head and the holding member is the moving speed of the holding member in the constant speed section in the acceleration section and the deceleration section of the holding member. The drive mechanism and the head moving mechanism are driven and controlled to be equal to each other.

  A sewing machine capable of embroidery sewing according to a fourth aspect includes the printer according to any one of the first to third aspects. Therefore, by a printer equipped on a sewing machine capable of embroidery sewing, the substrate is printed not only in the constant speed section of the holding member but also in the acceleration section and the deceleration section of the holding member, as in the first to third aspects. Printing is executed.

  The embroidery sewing machine according to claim 5 is the sewing machine according to claim 4, wherein a needle bar case equipped with a plurality of needle bars to which sewing needles are mounted and any one of the plurality of needle bars are selected as a predetermined sewing position. A case moving mechanism capable of moving the needle bar case for the purpose of movement, and a case moving mechanism that also serves as a head moving mechanism.

  A sewing machine capable of embroidery sewing according to a sixth aspect is the sewing machine according to the fourth or fifth aspect, wherein a work cloth for embroidery sewing is held on the holding member.

According to the first aspect of the present invention, since the print head, the holding member, and the transfer mechanism are provided, and the head moving mechanism and the print control means are provided, not only the acceleration section of the holding member but also the deceleration of the holding member is provided. Even in the section, the moving speed of the print head with respect to the printed material is a predetermined speed optimum for normal printing, so printing can be performed on the printed material even in the acceleration section and the deceleration section of the holding member, and the printer is enlarged. The printing range can be expanded without any problem.

  According to the invention of claim 2, the printing control means stops the movement of the print head in a constant speed section between the acceleration section and the deceleration section of the holding member and moves the holding member in the main scanning direction at a predetermined speed. However, since printing is performed on the substrate by the print head, the print image is not disturbed in the constant speed section of the holding member, and beautiful printing is possible. Other effects similar to those of the first aspect are obtained.

  According to a third aspect of the present invention, the printing control means is configured so that the relative moving speed of the print head and the holding member is equal to the moving speed of the holding member in the constant speed section in the acceleration section and the deceleration section of the holding member. Since the transfer mechanism and the head moving mechanism are driven and controlled, the entire movement range of the holding member including the acceleration section, the constant speed section, and the deceleration section of the holding member can be expanded to a printable range. In addition, the print image is not disturbed in the acceleration zone and the deceleration zone, and can be printed continuously and beautifully on the printing material from the acceleration zone to the deceleration zone. Other effects similar to those of the first or second aspect are achieved.

According to the invention of claim 4, since the printer according to any one of claims 1 to 3 is provided, the printer mounted on the sewing machine capable of embroidery sewing is used in the same manner as in claims 1 to 3. It is possible to print on the printing material not only in the constant speed section of the holding member but also in the acceleration section and the deceleration section of the holding member. Therefore, the printing range can be expanded without increasing the size of the printer.

  According to the invention of claim 5, a needle bar case equipped with a plurality of needle bars on which sewing needles are mounted, and a needle for selectively moving any one of the plurality of needle bars to a predetermined sewing position Since it has a case moving mechanism that can move the stick case and also serves as a head moving mechanism, the print head can be moved effectively using the case moving mechanism without the need for a separate head moving mechanism. Therefore, the reciprocating movement of the print head can be realized with a simple configuration. Other effects similar to those of the fourth aspect are achieved.

  According to the invention of claim 6, since the work cloth used for embroidery sewing is held by the holding member, various images can be printed on the work cloth held by the holding member. Further, since the embroidery sewing can be performed on the work cloth, it is possible to create creative works by variously combining printing and embroidery sewing. Other effects similar to those of the fourth or fifth aspect are achieved.

  The embroidery sewing machine with a printer according to the present embodiment is equipped with a printer integrally with a needle bar case moving mechanism having a needle bar case, and the reciprocating movement of the printer in the Y direction (main scanning direction) by the needle bar case moving mechanism; By cooperating with the movement of the cloth holding frame in the Y direction, printing can be performed in the acceleration section and the deceleration section of the cloth holding frame.

  In this embodiment, a case where the present invention is applied to an embroidery sewing machine with a printer equipped with an ink jet printer will be described. However, since the embroidery machine with a printer is a general embroidery machine except for the printer, an outline thereof will be described.

  As shown in FIGS. 1 and 2, an embroidery sewing machine 1 with a printer includes a bed portion 2, a leg column portion 3 erected from the right end portion of the bed portion 2, and a sewing machine bed portion from the upper end of the leg column portion 3. 2 has an arm portion 4 extending to the left so as to face 2. In the arm portion 4, a horizontal spindle main shaft (not shown) that is rotationally driven by a sewing machine motor 115 (see FIG. 12) and a needle bar 6 (see FIG. 3) with a sewing needle 5 attached to the lower end are moved up and down. A needle bar drive mechanism and a balance drive mechanism (not shown) that moves the balance 20 up and down in time with the vertical movement of the needle bar 6 are provided.

  A transfer mechanism 8 that moves the cloth holding frame 10 that holds the work cloth W in the X direction (left-right direction) and the Y direction (front-back direction) is disposed at the left end of the bed portion 2. The transfer mechanism 8 is provided inside the Y carriage 12, an X direction drive motor 11 (see FIG. 12), an X direction drive mechanism that moves the Y carriage 12 in the X direction by the X direction drive motor 11, and the Y carriage 12. A Y-direction drive motor 13 (see FIG. 12) and a Y-direction drive mechanism that moves the cloth holding frame 10 in the Y direction by the Y-direction drive motor 13. Further, a shuttle mechanism (not shown) that forms a seam in cooperation with the needle bar drive mechanism is also provided.

  Incidentally, a needle bar case 15 having a plurality of needle bars 6 is attached to the left end portion of the arm part 4, and a printer 17 is integrally attached to the needle bar case 15. First, the needle bar case 15 and the needle bar case moving mechanism 16 will be briefly described.

  As shown in FIG. 3, twelve needle bars 6 arranged in a line in the front-rear direction are supported at the left end of the arm 4 so as to be movable up and down, and the six balances 20 can be swung. The needle bar case 15 is supported so as to be movable in the front-rear direction. The needle bar case 15 has a substantially inverted L shape when viewed from the front, and a pair of attachments described later provided on the upper side of the arm portion 4 by attachment portions 15a integrally formed on both front and rear side surfaces in the vicinity of the upper end thereof. The plates 27 and 28 are respectively attached by bolts (not shown).

Next, the needle bar case moving mechanism 16 will be described with reference to FIGS.
An engaged member 21 having a hook portion 21a is fixed to a lower end portion of the needle bar storage portion 15b of the needle bar case 15, and an engagement portion 22a having a substantially L shape in side view that engages with the hook portion 21a from the front side. The engaging member 22 having the above is fixed to the lower end portion of the arm portion 4 with a bolt 23.

  A base plate 24 is fixed to the upper surface of the front end portion of the arm portion 4, and a pair of guide blocks 25 are mounted on the base plate 24. The pair of guide blocks 25 extend in the front-rear direction and have both left and right ends. Slide rails 26 each having a V-shaped groove 26a formed on the surface are engaged so as to be movable in the front-rear direction. The slide rail 26 is fixed to the vicinity of the front end of a pair of front and rear mounting plates 27 and 28 extending in the left-right direction. Therefore, the attachment portion 15a of the needle bar case 15 described above is attached to the attachment plates 27 and 28, respectively.

  A screw mounting plate 29 extending in the front-rear direction is screwed to the rear ends of the pair of mounting plates 27, 28. The screw mounting plate 29 is used for moving the needle bar case 15 and the printer 17 in the front-rear direction. A plurality of engagement bolts 30 are provided for each pitch similar to the pitch between the needle bars 6.

  Then, a substantially U-shaped support frame 31 in plan view is fixed to the arm portion 4 immediately behind the screw mounting plate 29. A rotating shaft 32 in the front-rear direction is rotatably supported on the support frame 31, and a helical cam 33 that can be engaged with the bolt 30 is fixed to the rotating shaft 32, and a bevel gear 34 is fixed. Has been.

  On the other hand, a needle bar switching motor 35 made of a stepping motor is attached to the rear side of the support frame 31 and the drive shaft 35a of the needle bar switching motor 35 extends leftward through the support frame 31 and is driven. A bevel gear 36 that meshes with the bevel gear 34 is fixed to the tip of the shaft 35a.

  By the way, at the front end portion of the arm portion 4, a base needle bar 37 extending in the vertical direction is supported by the machine frame. A cylindrical vertical movement member 38 is externally fitted to the base needle bar 37 so as to be movable up and down, and one end of a needle bar crank 40 is rotatably supported by a needle bar holder 39 connected to the vertical movement member 38. Yes. On the other hand, a balance crank 42 is fixed to the left end portion of the main shaft 41 disposed in the left-right direction in the arm portion 4, and the other end portion of the needle bar crank 40 is rotatably supported by the balance crank 42.

  Therefore, when the needle bar switching motor 35 is driven forward or reversely, the bevel gear 34 is simultaneously rotated by the rotation of the bevel gear 36, and at the same time, the spiral cam 33 is rotated clockwise or counterclockwise. The bolt 30 that engages the rearward or rearward moves. Thereby, since the needle bar case 15 is moved in the front-rear direction, only one needle bar 6 is alternatively selected. However, also when the print head 66 of the printer 17 described later is reciprocated in the Y direction, the needle bar switching motor 35 is driven forward or reversely.

  The only needle bar 6 selected in this way is driven up and down by the engagement between the connecting pin 43 fixed to the middle step in the height direction and the rotating portion 38a of the up-and-down moving member 38. An embroidery stitch can be formed on the work cloth with an embroidery thread of a desired color that is passed through the eye hole of the sewing needle 5 attached to the lower end of the bar 6.

  Next, the printer 17 is configured to be movable in the Y direction integrally with the needle bar case 15 by the needle bar case moving mechanism 16 described above. That is, as shown in FIG. 4, the front half portion of the slide rail 26 is supported on the lower surface of the support portion 4a projecting forward from the arm portion 4 at the same height as the mounting plates 27 and 28, thereby constituting the printer 17. The upper surface of the mechanism mounting portion 17A engaged with the V-shaped groove 26a of the slide rail 26 is movable together with the needle bar case 15 in the Y direction.

  Next, an image such as an arbitrary pattern or design is printed on the work cloth W held by the cloth holding frame 10 using color ink by an inkjet head 66 (hereinafter simply referred to as a print head) provided in the printing unit 60. The ink jet printer 17 will be described.

As shown in FIGS. 1 to 2, the printer 17 is an ink jet head (printing) that is attached to the tip of the arm portion 4 integrally with the needle bar case 15 and prints on the work cloth W held by the cloth holding frame 10. The printing mechanism unit 50 having a head 66, the maintenance mechanism unit 51 that maintains the printing head 66 of the printing mechanism unit 50, and the like.

  As shown in FIGS. 1 and 2, the printer 17 is provided with a mechanism attachment portion 17 </ b> A that houses a printing mechanism portion 50 and a maintenance mechanism portion 51. The printing mechanism unit 50 is provided to be movable up and down on the rear side of the mechanism mounting portion 17A, and the maintenance mechanism unit 51 extends from the front standby position to the rear maintenance position corresponding to the lower side of the printing mechanism unit 50. It can be moved in the front-rear direction.

  Here, the printer 17 can perform reciprocal printing in the Y direction. In this case, in FIGS. 1 and 8, the forward printing direction (main scanning direction) with respect to the work cloth W by the printing mechanism unit 50 is indicated by an arrow PD, and printing in the backward direction with respect to the work cloth W by the printing mechanism unit 50 is performed. The direction (main scanning direction) is indicated by RPD. However, the movement direction of the cloth holding frame 10 when printing in the forward printing direction PD is opposite to the forward printing direction PD, and the movement direction of the cloth holding frame 10 when printing in the reverse printing direction RPD is the reverse printing direction RPD. The opposite direction.

Each time the printing process for one line (or one pass) is completed, the cloth holding frame 10 is moved in the left direction (X direction) according to one line (or one pass). By repeating the reciprocating movement of the holding frame 10 in the Y direction, a printing process is performed on the work cloth W over the entire printable range of the cloth holding frame 10.

Next, the printing mechanism part 50 provided in the mechanism attachment part 17A of the printer 17 will be described with reference to FIGS.
A chassis 48 having a substantially rectangular frame shape is disposed in the mechanism mounting portion 17A, and a printing mechanism portion 50 is provided on the rear side of the chassis 48. The printing mechanism unit 50 includes a printing unit 60 having a printing head 66, and a vertical driving mechanism 61 that drives the printing unit 60 to move in the vertical direction, that is, to move toward and away from the work cloth W. .

  First, the printing unit 60 formed in a box shape will be described. On the rear side and the left end of the chassis 48, the upper and lower ends of a pair of front and rear head guide shafts 65 disposed in the vertical direction are supported by the chassis 48. A unit frame 60F constituting the printing unit 60 is supported by the pair of head guide shafts 65 at the left end portion thereof so as to be vertically movable. However, the printing unit 60 is configured as an ink jet system.

Therefore, the printing unit 60 is provided with a print head 66 facing downward at the bottom thereof, and four colors (cyan, magenta, yellow, black) are not shown on the upper side of the print head 66. 4 types of ink cartridges for printing with the color inks, and ink supply pipes connecting these ink cartridges and the print head 66 are accommodated.

  As shown in FIG. 6, the print head 66 is unitized by making two rows (66a, 66b, 66c, 66d) of the four nozzle rows 66a to 66d close to each other, and each nozzle row 66a to 66d has a unit. A large number of jet nozzles (for example, 64 nozzles) are provided in a zigzag shape, and printing is possible with a printing width of about 1 inch. When the print head 66 receives a print command from the control device 100 to be described later, the ink received from the ink cartridge is ejected from the nozzle rows 66a to 66d toward the lower work cloth W due to the bending of the piezoelectric ceramic actuator. ing.

  Next, the vertical drive mechanism 61 that moves the printing unit 60 up and down will be described. As shown in FIGS. 5 to 7, the vertical rack member 70 is fixed to the outside of the left end portion of the unit frame 60 </ b> F with a plurality of screws. On the other hand, a head vertical drive motor 71 is fixed to a chassis 48 corresponding to the left side of the unit frame 60F, and a composite having a large-diameter gear 73a meshing with a drive gear 72 fixed to a drive shaft of the head vertical drive motor 71. A gear 73 is rotatably supported. The small-diameter gear 73 b of the composite gear 73 meshes with the tooth portion 70 a of the rack member 70 of the printing unit 60.

  Therefore, when the head vertical drive motor 71 is rotated clockwise or counterclockwise, the printing mechanism 50 is guided to the pair of head guide shafts 65 through the meshing of the composite gear 73 and the rack member 70. However, it is moved in the vertical direction over the lower printing position indicated by the solid line in FIG. 5 and the upper rising position indicated by the broken line in FIG.

  Next, the maintenance mechanism unit 51 that performs a purge process or the like other than during printing will be described. As shown in FIGS. 5 to 7, the maintenance mechanism 51 is movable in the front-rear direction within the chassis 48, and a maintenance unit 80 having a capping mechanism 85, a purge mechanism 86, and the like, and the maintenance unit 80 in the front-rear direction. It has a front-rear drive mechanism 81 that is driven to move.

First, the box-shaped maintenance unit 80 will be described. On the right end side of the chassis 48, one maintenance guide shaft 82 is disposed in the front-rear direction, and is fixed to the chassis 48 at both front and rear ends. The unit frame 80F constituting the maintenance unit 80 is supported by the maintenance guide shaft 82 so as to be movable back and forth at the right end thereof, and by engaging an engagement member fixed to the maintenance unit 80 with the lower end of the chassis 48, A back-and-forth drive mechanism 81 described later is supported so as to be movable in the front-rear direction.

The maintenance unit 80 includes a capping mechanism 85, a purge mechanism 86, and the like, and can perform cap processing and purge processing.

First, the capping mechanism 85 will be briefly described. The capping mechanism 85 has a pair of head caps 87 composed of rubber caps that can be in close contact with the head surface of the print head 66 from the lower side in the vicinity of the upper end of the unit frame 80F. The head cap 87 is raised by driving a purge motor 80 (see FIG. 12) of the purge mechanism 86, which will be described later, and the head surface is brought into close contact with the lower side to cover the head. Thereby, drying of many ink nozzles can be prevented.

The purge mechanism 86 will be briefly described. The purge mechanism 86 includes a pair of head caps 87 and a suction pump 112 (see FIG. 12). When the head cap 87 is raised to the cap position as described above, the suction pump 112 is operated in the cap state. Thus, by making the inside of the head cap 87 have a negative pressure, air that closes the nozzles and ink that has been dried and increased in viscosity can be sucked from the plurality of ink nozzles of the print head 66 so that a good printing state can be maintained. To.

Next, the front-rear drive mechanism 81 that moves the maintenance unit 80 in the front-rear direction will be described. As shown in FIGS. 5 to 7, a front / rear drive motor 90 is fixed to the outside on the right rear end side of the chassis 48, a drive gear 91 is fixed to the drive shaft, and the large diameter meshes with the drive gear 91. The driven gear 92 is pivotally supported by the chassis 48. A driving pulley 93 is further formed integrally with the driven gear 92. A driven pulley 94 is rotatably supported on the right front end side of the chassis 48, and a driving belt 95 including a timing belt is hooked on the driving pulley 93 and the driven pulley 94.

A part of the unit frame 80 </ b> F constituting the maintenance unit 80 is fixed to a part of the drive belt 95 by a fixing bracket 96. Therefore, when the front-rear drive motor 90 is driven, the front standby position shown in FIGS. 3 and 4 and the rear maintenance position (not shown) are shown via the drive gear 91, the drive pulley 93, and the drive belt 95. ) Can be moved.

  By the way, since the needle bar case 15 and the printer 17 are integrally attached, the sewing position O when embroidery is performed with the needle bar 6 that is alternatively selected, and the printing position P when printing is performed with the printer 17. Is a position separated in the front-rear direction by a predetermined distance, but the respective positions are stored in advance in the ROM 102 described later, and the frame center position of the cloth holding frame 10 is moved to each position by the transfer mechanism 8. To do.

  Alternatively, as shown in FIGS. 8 and 9, the embroidery and printing cloth holding frames 10 may be prepared separately. That is, the position of the connecting portion 10a attached to the Y carriage 12 provided on the outer frame 16 of the cloth holding frame 10A for embroidery and the Y carriage 12 provided on the outer frame 16 of the cloth holding frame 10B for printing. The position of the connecting portion 10a is set at a position shifted in the front-rear direction by a predetermined distance. When performing embroidery or printing, embroidery is performed by appropriately replacing the cloth holding frames 10A and 10B. The sewing origin O, which is the center position of the sewing range in this case, and the printing origin P, which is the center position of the printing range when printing, can be made coincident.

  As shown in FIGS. 8 and 9, each of the cloth holding frames 10A and 10B has an inner frame 15 and an outer frame 16 made of synthetic resin, and the work cloth W is used as the inner frame when performing embroidery or printing. 15 and the outer frame 16. However, an adhesive core (not shown) is attached in advance to the back side (lower side) of the work cloth W, and the work cloth W is set on the cloth holding frames 10A and 10B in a tensioned state. However, although the cloth holding frames 10A and 10B are rectangular frame shapes, various frame shapes such as an elliptical frame or a circular frame can be adopted.

  Next, a block diagram of a control system of the embroidery sewing machine 1 with a printer will be described with reference to FIG.

  The embroidery sewing machine 1 with a printer includes a control device 100 having a CPU 101, a ROM 102, a RAM 103, an input / output interface (I / O) 104, and the like, and various types of printing start switches and frame movement switches connected to the control device 100. An operation switch 105, a drive circuit 106 for driving the print head 66, a drive circuit 107 for driving the head vertical drive motor 71, a drive circuit 108 for driving the front / rear drive motor 90, and a drive circuit 111 for driving the purge motor 110 A drive circuit 113 for driving the suction pump 112, a drive circuit 114 for driving the needle bar switching motor 35, a drive circuit 116 for driving the sewing machine motor 115, and the like are provided.

  The ROM 102 stores a drive control control program for driving the drive mechanisms 8, 50, 80, 81, 85, 86. Here, the control device 100 corresponds to a print control unit. The transport mechanism 8 includes a carriage position detection sensor 124 that detects the X-direction position and the Y-direction position of the cloth holding frame 10, a drive circuit 125 that drives the X-direction drive motor 11, and a drive that drives the Y-direction drive motor 13. A circuit 126 and the like are provided.

  Next, the printing control executed by the control device 100 will be described with reference to the flowcharts of FIGS. However, in the printer 17, the print head 66 reciprocates in the Y direction together with the needle bar case 15. The cloth holding frame 10 is reciprocated in the Y direction, which is the main scanning direction, and is moved in the X direction, which is the sub scanning direction, for line feed. Therefore, reciprocal printing is performed.

  That is, during the printing process in the forward direction, as shown in FIG. 10, the cloth holding frame 10 is a left limit position that is a left end position of a preset printable range D and is a movement limit position to the left. Is accelerated in the acceleration section from the first speed switching position to the first speed switching position, is moved at a constant speed in the constant speed section from the first speed switching position to the second speed switching position, and can be printed from the second speed switching position. The vehicle is decelerated and stopped in a deceleration zone that reaches the right limit position that is the right end position of the range D and is the rightward movement limit position.

  However, when printing by the print head 66 is started, the print head 66 starts accelerating movement in the printing direction PD before the cloth holding frame 10, and the deceleration section after the acceleration movement and acceleration of the cloth holding frame 10 are started. The section overlaps (see FIG. 17). On the other hand, when printing by the print head 66 is finished, the print head 66 starts acceleration movement in the printing direction PD simultaneously with the start of deceleration movement of the cloth holding frame 10, and the acceleration section and the deceleration section of the cloth holding frame 10 Are controlled to overlap (see FIG. 20).

  When the printer 17 is turned on, as shown in FIG. 13, first, initialization processing is executed (S11). In this initialization process, the initialization process of the control system is executed, the cloth holding frame 10 is moved by driving the transfer mechanism 8, and the print head 66 is moved to the print origin position P of the printable range D (at the center position). Yes, see FIG. 9 and FIG. 18).

  Next, a printing-related command is read in a state where the cloth holding frame 10 on which the work cloth W is mounted is connected to the Y carriage 12 (S12: Yes). If the read print-related command is a print command (S13: Yes), if there is no image print data in the RAM 103 (S14: No), error processing such as displaying a warning message on the display or the like is executed. (S17), this control is terminated, and the process returns to the main routine.

  However, if the image print data is already stored in the RAM 103 (S14: Yes), the printing process (see FIG. 14) is executed (S15). On the other hand, when the read printing-related command is other than the printing command (S13: No), processing according to the printing-related command is executed (S16), and this control is finished.

  When the control for the printing process is started, as shown in FIG. 14, the print head 66 and the cloth holding frame 10 are moved to a predetermined movement start position in preparation for printing start (S21). That is, the cloth holding frame 10 is moved to the print start line and to the left limit position, and the print head 66 is moved to the print start line and the left movement start position on the left side of the left limit position.

  Next, forward one-line printing processing is executed (S22). When this control is started, first, as shown in FIG. 15, the print head 66 is moved and controlled from the left movement start position to the left limit position so as to accelerate and move at a predetermined acceleration in the printing direction PD (S31). , S32: No). Next, when the print head 66 reaches the left limit position (S32: Yes), the print head 66 is controlled to move at a predetermined deceleration, and the cloth holding frame 10 is moved in the anti-printing direction RPD. It is accelerated and moved at a predetermined acceleration (S33).

  Simultaneously with the start of the acceleration movement of the cloth holding frame 10, the image print data is printed for one dot row (S34). At this time, if the moving position of the print head 66 has not reached the first speed switching position for switching to the constant speed movement (S35: No), S34 and S35 are repeatedly executed in the acceleration section of the cloth holding frame 10. Printing is executed.

  Here, 1-dot row printing will be described. When printing using the nozzle rows 66a to 66d for each color, two rows are formed at each of the injection timings (injection timings) of the first row, the second row, the third row, etc. in the row direction (Y direction). Since a plurality of nozzles n1, n2, n3,... Are sequentially printed in a one-dot row based on print data, one-dot row printing is assumed.

  However, in this case, when one dot row printing is executed in the print direction PD by the print head 66, when the print head 66a is moved, the print head 66a is moved in the print direction PD by a minute dimension corresponding to one dot. However, when the cloth holding frame 10 is moved, the cloth holding frame 10 is moved in the direction opposite to the printing direction PD by a minute dimension corresponding to one dot.

  On the other hand, when 1 dot row printing is executed by the print head 66 in the anti-print direction RPD, when the print head 66a is moved, the print head 66a moves in the anti-print direction RPD by a minute dimension corresponding to one dot. However, when the cloth holding frame 10 is moved, the cloth holding frame 10 is moved in a direction opposite to the anti-printing direction PD by a minute dimension corresponding to one dot.

  Next, when the movement position of the cloth holding frame 10 reaches the first speed switching position (S35: Yes), the movement of the print head 66 is stopped and the cloth holding frame 10 is moved in the anti-printing direction RPD. The movement is controlled to move at a constant speed (S36). The printing process is also performed in the constant speed section of the cloth holding frame 10.

  That is, when the print data is printed for one dot row (S37) and the movement position of the cloth holding frame 10 has not reached the second speed switching position (S38: No), S37 to S38 are repeatedly executed. In the constant speed section, image printing using a plurality of dot rows is executed. When the movement position of the cloth holding frame 10 reaches the second speed switching position (S38: Yes), the print head 66 is controlled to move at an accelerated speed and the cloth holding frame 10 is decelerated from this time. The movement is controlled so as to move (S39), and then the image print data is printed for one dot row (S40).

  Next, when the cloth holding frame 10 has not reached the right limit position (S41: No), S40 to S41 are repeatedly executed, and image printing with a plurality of dot rows is also executed in the deceleration zone. On the other hand, when the cloth holding frame 10 reaches the right limit position (S41: Yes), the movement of the cloth holding frame 10 is stopped, so that the one-dot row printing by the print head 66 is stopped (S42). Further, from this time, the print head 66 is decelerated (S43), and the process returns to S23 of the printing process control.

  Next, in the printing process control, as shown in FIG. 14, when not in the reciprocal printing mode (S23: No), when printing of all lines is not completed (S24: No), as in S21, In order to prepare for the start of printing on the next line, the print head 66 and the cloth holding frame 10 are moved to a predetermined movement start position (S25), and S22 and subsequent steps are repeatedly executed. Then, S22 to S25 are repeatedly executed, and when printing of all lines is completed (S24: Yes), the printing movement control is ended.

  On the other hand, when the reciprocating printing mode is set (S23: Yes), the backward one-line printing process is executed (S26). When this control is started, as shown in FIG. 16, first, the print head 66 is controlled to move from the right-side right movement start position to the right limit position so as to accelerate and move at a predetermined acceleration in the anti-printing direction RPD. (S51, S52: No). Next, when the print head 66 reaches the right limit position (S52: Yes), the print head 66 is controlled to move so as to decelerate at a predetermined deceleration, and the cloth holding frame 10 is predetermined in the print direction PD. Is accelerated (S53).

  Simultaneously with the start of the acceleration movement of the cloth holding frame 10, the image print data is printed for one dot row (S54). At this time, if the moving position of the print head 66 has not reached the second speed switching position for switching to the constant speed movement (S55: No), S54 and S55 are repeatedly executed in the acceleration section of the cloth holding frame 10. Printing is executed.

  Next, when the movement position of the cloth holding frame 10 reaches the second speed switching position (S55: Yes), the movement of the print head 66 is stopped and the cloth holding frame 10 is moved in the printing direction PD from this time. The movement is controlled so as to move at a constant speed (S56). The printing process is also performed in the constant speed section of the cloth holding frame 10.

  That is, when the print data is printed for one dot row (S57) and the movement position of the cloth holding frame 10 has not reached the first speed switching position (S58: No), S57 to S58 are repeatedly executed. In the constant speed section, image printing using a plurality of dot rows is executed. If the movement position of the cloth holding frame 10 has reached the first speed switching position (S58: Yes), the movement control is performed so that the print head 66 is accelerated and the cloth holding frame 10 is decelerated from this time. The movement is controlled so as to move (S59), and then the image print data is printed for one dot row (S60).

  Next, when the cloth holding frame 10 has not reached the left limit position (S61: No), S60 to S61 are repeatedly executed, and image printing with a plurality of dot rows is also executed in the deceleration zone. On the other hand, when the cloth holding frame 10 has reached the left limit position (S61: Yes), since the movement of the cloth holding frame 10 is stopped, printing of one dot row by the print head 66 is stopped (S62). Further, at this time, the print head 66 is decelerated (S63), and the process returns to S27 of the printing process control.

  Next, in the print processing control, as shown in FIG. 14, the cloth holding frame 10 is moved to the next print line to prepare for the start of printing of the next line (S28), and S22 and subsequent steps are repeatedly executed. Then, S22, S23, and S26 to S28 are repeatedly executed, and when printing of all lines is completed (S27: Yes), the print movement control is ended.

  Next, operations and effects of the print movement control configured as described above will be described. However, it is assumed that the reciprocal printing mode is set.

  First, the case of printing in the forward direction will be described with reference to FIGS. 19-1 to 19-6 with reference to FIG.

  At the start of printing, the print head 66 is moved to the left movement start position on the left side of the left limit position, and the cloth holding frame 10 is moved to the left limit position (see FIG. 19-1). The print head 66 is controlled to accelerate and move in the printing direction PD in the acceleration section from the left movement start position to the left limit position. When the print head 66 reaches the left limit position, the print head 66 moves at a reduced speed. The movement control is performed and the cloth holding frame 10 is controlled to be accelerated in the anti-printing direction RPD (see FIG. 19-2).

  In this case, the deceleration section of the print head 66 and the acceleration section of the cloth holding frame 10 overlap. In addition, the needle bar switching motor 35 is set so that the relative movement speed between the movement speed of the print head 66 in the deceleration section and the movement speed of the cloth holding frame 10 in the acceleration section is equal to the movement speed of the cloth holding frame 10 in the constant speed section. And the Y-direction drive motor 13 are controlled, and printing is performed in the acceleration section of the cloth holding frame 10.

  Next, when the cloth holding frame 10 reaches the first speed switching position, the movement of the print head 66 is stopped, and the cloth holding frame 10 is printed in the constant speed section by the print head 66 while moving at a constant speed in the constant speed section. (See FIG. 19-3). Next, when the cloth holding frame 10 reaches the second speed switching position, the print head 66 is controlled to move at an accelerated speed and the cloth holding frame 10 is controlled to move at a reduced speed (see FIG. 19-4). ).

  In this case, the acceleration section of the print head 66 and the deceleration section of the cloth holding frame 10 overlap. In addition, the needle bar switching motor 35 is set so that the relative movement speed between the movement speed of the print head 66 in the acceleration section and the movement speed of the cloth holding frame 10 in the deceleration section is equal to the movement speed of the cloth holding frame 10 in the constant speed section. And the Y-direction drive motor 13 are controlled, and printing is also performed in the deceleration section of the cloth holding frame 10.

  Next, when the movement position of the cloth holding frame 10 reaches the right limit position, printing is stopped, the movement of the cloth holding frame 10 is stopped, and the print head 66 is controlled to move at a reduced speed (see FIG. 19-5). Then, the print head 66 stops at the right movement end position (see FIG. 19-6).

  Next, the case of printing in the backward direction will be described based on FIGS. 21-1 to 21-6 with reference to FIG.

  When the backward printing is started, the print head 66 is positioned at the right movement start position on the right side of the right limit position, and the cloth holding frame 10 is positioned at the right limit position (see FIG. 21-1). The print head 66 is controlled to accelerate in the counter-printing direction RPD in the acceleration section from the right movement start position to the right limit position, and when the print head 66 reaches the right limit position, the print head 66 moves at a reduced speed. The cloth holding frame 10 is controlled to be accelerated in the printing direction PD (see FIG. 21-2).

In this case, the deceleration section of the print head 66 and the acceleration section of the cloth holding frame 10 overlap. In addition, the needle bar switching motor 35 is set so that the relative movement speed between the movement speed of the print head 66 in the deceleration section and the movement speed of the cloth holding frame 10 in the acceleration section is equal to the movement speed of the cloth holding frame 10 in the constant speed section. And the Y-direction drive motor 13 are controlled, and printing is performed in the acceleration section of the cloth holding frame 10.

  Next, when the cloth holding frame 10 reaches the second speed switching position, the movement of the print head 66 is stopped, and printing is performed in the constant speed section by the print head 66 while the cloth holding frame 10 moves at a constant speed in the constant speed section. (See FIG. 21-3). Next, when the cloth holding frame 10 reaches the first speed switching position, the print head 66 is moved and controlled to accelerate, and the cloth holding frame 10 is moved and controlled to decelerate (see FIG. 21-4). ).

  In this case, the acceleration section of the print head 66 and the deceleration section of the cloth holding frame 10 overlap. In addition, the needle bar switching motor 35 is set so that the relative movement speed between the movement speed of the print head 66 in the acceleration section and the movement speed of the cloth holding frame 10 in the deceleration section is equal to the movement speed of the cloth holding frame 10 in the constant speed section. And the Y-direction drive motor 13 are controlled, and printing is also performed in the deceleration section of the cloth holding frame 10.

  Next, when the movement position of the cloth holding frame 10 reaches the left limit position, printing is stopped, the movement of the cloth holding frame 10 is stopped, and the print head 66 is controlled to move at a reduced speed (see FIG. 21-5). Then, the print head 66 stops at the left movement end position (see FIG. 21-6).

Thus, not only in the constant speed section of the cloth holding frame 10, but also in the acceleration section and the deceleration section of the cloth holding frame 10, the moving speed of the print head 66 with respect to the work cloth W held in the cloth holding frame 10 is normal printing. Therefore, printing can be executed even in the acceleration section and the deceleration section of the cloth holding frame 10, and the printing range can be expanded without increasing the size of the printer 17 of the embroidery sewing machine 1 with a printer. Can do.

  Further, while the movement of the print head 66 is stopped in the constant speed section between the acceleration section and the deceleration section of the cloth holding frame 10 and the cloth holding frame 10 is moved in the Y direction at a predetermined speed, the work cloth W is moved by the print head 66. Therefore, printing can be performed as usual in the constant speed section of the holding member 10.

  Further, in the acceleration section and the deceleration section of the cloth holding frame 10, the needle bar switching motor 35 and the needle bar switching motor 35 are set so that the relative movement speed between the print head 66 and the cloth holding frame 10 is equal to the movement speed of the cloth holding frame 10 in the constant speed section. Since the drive control of the Y-direction drive motor 13 is performed, the entire movement range of the holding member 10 including the acceleration section, the constant speed section, and the deceleration section of the holding member 10 can be expanded to a printable range. Moreover, the print image is not disturbed in the acceleration zone and the deceleration zone, and the work cloth W can be printed continuously and beautifully from the acceleration zone to the deceleration zone.

  In addition, a needle bar case 15 equipped with a plurality of needle bars 6 to which the sewing needle 5 is attached, and a needle bar case 15 for selectively moving any one of the plurality of needle bars 6 to a predetermined sewing position. Needle bar case moving mechanism 16 that can move the needle bar case moving mechanism 16 that also serves as the head moving mechanism. Therefore, the needle bar case moving mechanism 16 can be effectively used without a separate head moving mechanism. Therefore, the print head 66 can be moved back and forth with a simple configuration.

Next, a modified embodiment in which the above embodiment is partially modified will be described.
1] The printed material is not limited to the work cloth W, and may be various printable media such as paper and an OHP sheet. Further, instead of the cloth holding frame 10, a flat holding member may be used.

2] As shown in FIG. 22, the bed portion 2A equipped with a transfer mechanism 8A for independently moving the cloth holding frame 10 in the X direction and the Y direction perpendicular to the X direction, and the right end of the bed portion 2A, as shown in FIG. 3A, a leg column portion 3A standing up from the arm, and an arm portion 4A extending leftward from the leg column portion 3A, and a print having an ink jet head at a substantially L-shaped tip portion of the arm portion 4A You may make it apply to the printer 17A provided with the printing apparatus main body 17B provided with the mechanism part 50A and the maintenance mechanism part 51 which maintains the print head of this printing mechanism part 50A.

However, although not shown, the printing apparatus main body 17B is configured to be movable in the Y direction with respect to the arm portion 4A by a head moving mechanism using an electric motor such as a stepping motor.

3] A connecting portion provided on the outer frame 16 in order to cope with the sewing position O and the printing position P being separated by a predetermined distance due to the needle bar case 15 and the printer 17 being integrally attached. The position 10a may be switched between a position corresponding to sewing and a position corresponding to printing. That is, the connecting portion 10a may be configured to be slidable by a predetermined distance between the sewing position O and the printing position P with respect to the outer frame 16 and to be locked at each position.

4) The present invention is not limited to the above-described embodiment, and those skilled in the art can implement the invention by adding various modifications to the above examples without departing from the spirit of the present invention. The present invention includes such modifications.

It is a top view of the embroidery sewing machine with a printer concerning the embodiment of the present invention. It is a front view of an embroidery sewing machine with a printer concerning an embodiment of the present invention. It is a principal part vertical front view of a needle bar case. It is a partial notch top view which shows a needle bar case moving mechanism. It is a left view of a printer. It is a top view of a printer. It is a rear view of a printer. It is a top view of the cloth holding frame for embroidery. It is a top view of the cloth holding frame for printing. It is explanatory drawing which shows the movement pattern of the cloth holding frame at the time of forward direction printing. It is explanatory drawing which shows the movement pattern of the cloth holding frame at the time of backward printing. It is a block diagram of a control system of an embroidery sewing machine with a printer. It is a flowchart of printing movement control. 6 is a flowchart of print processing control. It is a flowchart of a forward direction 1 line printing process control. It is a flowchart of a backward direction 1 line printing process control. It is a time chart at the time of forward direction printing. It is explanatory drawing which shows the origin position of a print head and a cloth holding frame. FIG. 6 is an explanatory diagram in the middle of movement of a print head and a cloth holding frame when starting forward printing. It is explanatory drawing in the middle of the movement of the printing head and cloth holding frame in the middle of forward printing. It is explanatory drawing in the middle of the movement of the printing head and cloth holding frame in the middle of forward printing. It is explanatory drawing in the middle of the movement of the printing head and cloth holding frame in the middle of forward printing. It is explanatory drawing in the middle of the movement of the printing head and cloth holding frame in the middle of forward printing. FIG. 6 is an explanatory diagram in the middle of movement of the print head and the cloth holding frame at the end of forward printing. It is a time chart at the time of backward printing. FIG. 6 is an explanatory diagram in the middle of movement of a print head and a cloth holding frame at the start of backward printing. FIG. 10 is an explanatory diagram in the middle of movement of the print head and the cloth holding frame in the middle of printing in the backward direction. FIG. 10 is an explanatory diagram in the middle of movement of the print head and the cloth holding frame in the middle of printing in the backward direction. FIG. 10 is an explanatory diagram in the middle of movement of the print head and the cloth holding frame in the middle of printing in the backward direction. FIG. 10 is an explanatory diagram in the middle of movement of the print head and the cloth holding frame in the middle of printing in the backward direction. FIG. 10 is an explanatory diagram in the middle of movement of the print head and the cloth holding frame when the backward printing is finished. It is a top view of the printer which concerns on a change form.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Embroidery sewing machine with a printer 5 Sewing needle 6 Needle bar 8 Transfer mechanism 10 Cloth holding frame 10A Cloth holding frame 10B Cloth holding frame 15 Needle bar case 16 Needle bar case moving mechanism 17 Inkjet printer 17A Inkjet printer 66 Print head 100 Control device

Claims (6)

A printing head having a plurality of inkjet nozzles, a holding member for holding a substrate, and a transfer mechanism for moving the holding member in a main scanning direction and a sub-scanning direction relative to the print head; In a printer that prints on the substrate while moving the holding member relative to the print head by a mechanism,
A head moving mechanism capable of reciprocating the print head in the main scanning direction;
An acceleration section in which the holding member is accelerated in the main scanning direction overlaps with a deceleration section in which the print head is accelerated and moved to a predetermined speed in a direction opposite to the direction in which the holding member is accelerated, and then decelerated. While driving and controlling the transfer mechanism and the head moving mechanism, the printing head prints on the substrate even in the acceleration section,
The decelerating section for decelerating and moving the holding member in the main scanning direction overlaps with the transfer mechanism so as to overlap with an accelerating section for accelerating and moving the print head in the direction opposite to the decelerating direction of the holding member to the predetermined speed. Print control means for printing on the substrate by the print head in the deceleration zone while driving and controlling the head moving mechanism;
A printer characterized by comprising:   The printing control means stops the movement of the print head in a constant speed section between the acceleration section and the deceleration section of the holding member and moves the holding member in the main scanning direction at the predetermined speed. The printer according to claim 1, wherein the printing material is printed on the substrate.   The printing control means moves the transfer member so that a relative movement speed between the print head and the holding member is equal to a movement speed of the holding member in the constant speed section in the acceleration section and the deceleration section of the holding member. The printer according to claim 1 or 2, wherein the mechanism and the head moving mechanism are driven and controlled.   An embroidery sewing machine comprising the printer according to any one of claims 1 to 3.   A needle bar case equipped with a plurality of needle bars on which sewing needles are mounted, and a case capable of moving the needle bar case to selectively move any one of the plurality of needle bars to a predetermined sewing position 5. The sewing machine capable of embroidery sewing according to claim 4, further comprising a case moving mechanism which is a moving mechanism and also serves as the head moving mechanism. 6. The sewing machine capable of embroidery sewing according to claim 4, wherein a work cloth used for embroidery sewing is held by the holding member.

Images