JP2982427B2 - Embroidery machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an embroidery machine capable of performing both embroidery and transfer.

[0002]

2. Description of the Related Art Conventionally, there has been known a method in which a embroidered fabric is transferred to a transfer machine using a single-color embroidery thread, and coloring is performed on the upper surface of the embroidered pattern by the transfer machine. For example, according to the method disclosed in Japanese Patent Application Laid-Open No. 60-115499, first, an embroidery machine is used to embroider a fabric with gold or silver threads. Then, the embroidered fabric is moved to a predetermined position of a transfer machine different from the embroidery machine, and embroidery and transfer image printing are performed around the embroidery.

[0003]

However, since the embroidery machine and the transfer machine are separate bodies, when the embroidered fabric is set on the transfer machine, the embroidery position is exactly matched with the position where the image is to be printed. In particular, when printing is desired to be performed only on the upper surface of the embroidery pattern, the printing is performed on the embroidery-free cloth even if the printing is slightly shifted, and the cloth may be stained.

Accordingly, it is a technical object of the present invention to provide an embroidery machine which can easily position a fabric to be embroidered and can accurately transfer the embroidered cloth to a target position.

[0005]

Configuration of the Invention

[0006]

In order to solve the above-mentioned problems, a technical solution taken in the present invention is a machine frame having a bed and an arm located above the bed, and a movable body on the bed. An embroidery frame fixed to the embroidery object, moving means for moving the embroidery frame in a plane, embroidery means for embroidering the embroidery object, and a transfer arranged on the upper surface of the embroidery frame A sheet feeding unit, a transfer unit disposed above the transfer sheet feeding unit, and a control unit for controlling driving of the driving unit, the embroidery unit, the transfer sheet feeding unit, and the transfer unit. Preferably, the transfer sheet feeding means includes a substantially quadrangular frame, a pair of shaft portions disposed on opposite sides of the frame and around which both ends of the transfer sheet are wound, Rotate the shaft in the circumferential direction That includes a turning means, rotation of said rotating means is that it is controlled by the control means.

[0007]

When the embroidery object is fixed to the embroidery frame, the control means instructs the embroidery means and the embroidery frame driving means to embroider the embroidery object on the embroidery frame while moving the embroidery frame in a plane. Do. Further, before or after the embroidery is performed, the control unit instructs the transfer sheet feeding unit and the transfer unit to transfer the embroidery frame to a desired position of the embroidery object while moving the embroidery frame. At this time, the embroidery object to be embroidered and transferred is always fixed to the embroidery frame, and the embroidery object does not need to be removed from the embroidery frame regardless of whether the transfer is performed before or after the embroidery. Embroidery and transfer can be performed at an accurate position without any trouble.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS. FIG. 1 shows a front view of the embroidery machine of the present embodiment. The machine frame 1 of the embroidery machine according to the present embodiment includes a bed 2 and a bed 2.
It is composed of a more upstanding arm portion 3.

An embroidery frame 4 is movably disposed on the upper surface of the bed portion 2. As shown in FIG. 3, the embroidery frame 4 is composed of an embroidery frame main body 4a and an engaging frame 4b which engages with the inner periphery of the embroidery frame main body 4a and holds the embroidered object 5 between the embroidery frame main body 4a. ing. An embroidery holder 7 is fixed to the embroidery frame main body 4a, and the embroidery frame 4 is movably arranged on the X moving arm 8a by the embroidery frame holder 7.

Next, a moving device for moving the embroidery frame 4 in a plane will be described. Grooves 9 are provided on both side surfaces of the bed 2, and both ends of the Y moving bar 8b are provided in the grooves 9, and a Y motor 11 (FIG. 6) provided in the bed 2 is provided.
To move in the Y direction. Also, Y
An X moving arm 8a is provided on a side surface of the moving bar 8b, and is moved in the X direction by an X motor 10 (FIG. 6). As described above, the embroidery frame 4 is moved two-dimensionally by moving the X moving arm 8a and the Y moving bar 8b in the X and Y directions, respectively.
The moving direction and the moving distance of the embroidery frame 4 are controlled by the embroidery frame driving circuit 62 of the control circuit 60 (FIG. 6). The embroidery frame drive circuit 62 receives the embroidery data read from the data input device 63, drives the X motor 10 and the Y motor 11, and controls the rotation of each motor detected by the X motor encoder 10a and the Y motor encoder 11a. The position of the embroidery frame 4 is recognized based on the number and the rotation angle.

Next, the embroidery device will be described. Arm 3
A thread stand 41 for setting up the embroidery thread 40 and a thread guide 42 are arranged on the upper surface of the embroidery thread 40. The embroidery thread 40 fixed to the thread stand 41 passes through the thread guide 42, the balance 43, and the thread tension adjusting device 44. It is passed through the embroidery needle 45. When the upper shaft motor 46 (FIG. 6) of the embroidery machine operates according to an instruction from the embroidery / transfer switching circuit 61 (FIG. 6) of the control circuit 60, the embroidery needle 45 reciprocates downward from the arm 3 to perform embroidery. I do. At this time, the rotation speed and rotation angle of the embroidery machine upper shaft motor 46 are detected by the embroidery machine upper shaft sensor 47 and sent to the embroidery / transfer switching circuit 61. A lower thread of the embroidery thread and a shuttle device for supplying the lower thread are arranged in the bead 2 so that they are driven in synchronization with the embroidery needle 45 arranged on the arm 3. I'm sorry.

A transfer sheet feeder 20 having a transfer sheet 30 is fixed on the upper surface of the embroidery frame 4. The skeleton of the transfer sheet feeder 20 is constituted by a substantially quadrilateral transfer sheet feed frame (hereinafter, simply referred to as a feed frame) 22, and an attachment portion 22 a provided on one side of the feed frame 22 is embroidered. Embroidery frame holder 7 for frame 4
, The transfer sheet feeding device 20 is fixed to the upper surface of the embroidery frame 4. At both ends of the feed frame 22, a first shaft 23 and a second shaft 24 are provided so as to be rotatable in the circumferential direction and parallel to each other. A gear 25 is provided at one end of the first shaft 23, and the gear 25 meshes with a gear 26 a of a transfer sheet feeding motor 26. A reel 24a is disposed on the second shaft 24, and constantly urges the second shaft 24 in a clockwise direction (the direction of arrow a in FIG. 2).

A transfer sheet 30 is wound around a reel 24a of the first shaft 23 and the second shaft 24. As shown in FIG. 4, the transfer sheet 30 of the present embodiment is a sheet in which a plurality of colors of heat sublimable transfer material are printed at regular intervals for each single color on an elongated cloth-like sheet. A pair of winding cords 30a is attached to one end, and the other end is wound into a roll. The transfer sheet feeder 20 includes:
A roll-shaped portion is passed through the first shaft 23, and the reel 30 is wound around a reel 24a of the second shaft 24 to be attached. The length of the cord 30a is the first
The length of the cord 30 is longer than the length between the shaft 23 and the second shaft 24.
Even when the end of “a” is wound on the reel 24a, the state of only the winding cord 30a between the first shaft 23 and the second shaft 24 is as long as possible. When the transfer sheet feeding motor 26 is operated to rotate the gear 26a clockwise in FIG. 2, the gear 25 rotates counterclockwise, and the transfer sheet 30 is wound up against the urging force of the reel 24a. I'm sorry. Conversely, the transfer sheet feeding motor 26
Rotates the gear 26a in the counterclockwise direction.
Since the shaft 23 rotates clockwise and the second shaft 24 also rotates clockwise by the urging force of the reel 24a, the transfer sheet 30 rewinds toward the second shaft 24.

A plate 51 is fixed to an end of the arm 3 by a screw member, and a transfer device 50 is provided on the plate 51. As shown in FIG. 5, the transfer device 50 has a heater (thermal head) 52 that moves up and down at the lower end, and presses and heats the transfer sheet 30 from above the transfer sheet 30 so that the transfer sheet 30 is placed on the embroidery object. The transfer is performed. A rotary solenoid 55 is fixed to the plate 51, and a link bar 54 is provided on a rotary arm 56 of the rotary solenoid 55.

A guide groove 53 is provided below the link bar 54.
A rod 53 having a heater 52 is provided at the lower end thereof. The guide groove 53a has a plate 51
When the rotary arm 55 rotates by operating the rotary solenoid 55, the rod 53 moves up and down along the guide pin 57. The heater 52 is provided with a heater cord 58. The transfer sheet feeding motor 26 and the rotary solenoid 55 are also operated by the embroidery / transfer switching circuit 61 in accordance with the transfer data read from the data input device 63.

Next, the operation of this embodiment will be described. Here, a description will be given of a case where transfer is performed after embroidery is performed on the embroidery object 30. When the embroidery object 5 is set in the embroidery frame 4 and the embroidery / transfer switching circuit 61 is instructed to start embroidery, the embroidery / transfer switching circuit 61 sends the embroidery frame 4 to the embroidery frame drive circuit 62 in accordance with the embroidery data. The embroidery frame drive circuit 62 drives the X motor 10 and the Y motor 11 in response to an instruction to move the X and Y directions. Embroidery frame drive circuit 62
Is capable of recognizing an accurate position of the embroidery frame 4 based on information sent from the X encoder 10a and the Y encoder 11a. The embroidery / transfer switching circuit 61 drives the upper shaft motor 46 of the embroidery machine to operate the embroidery needle 4.
5 is reciprocated to perform embroidery on the embroidery object 5. At this time, the entire sheet portion of the transfer sheet 30 is wound on the first shaft 23 side, and a winding cord 30 is provided between the first shaft and the second shaft.
The state is only a. Therefore, the feed frame 22 of the transfer sheet feeder 20 is in a frame-only state, and the embroidery needle 45 passes through the feed frame 22 to embroider only the embroidered object 5.

When the embroidery is completed in this manner, the next transfer operation is performed with the embroidery object 5 being fixed to the embroidery frame 4. The embroidery / transfer switching means 61 performs a transfer operation as follows based on the transfer data. First, the transfer sheet feed motor 26 is driven to rewind the transfer sheet 30 so that the color of the transfer sheet 30 to be transferred appears on the feed frame 22. Next, the embroidery frame drive unit 62 is instructed to move the embroidery frame 4 so that the portion to which the embroidery object 5 is transferred is located directly below the heater 52. At this time, the heater 52 is already energized and heated. When the rotary solenoid 55 is energized in this way, the rotary solenoid 55 rotates to lower the rod 53, and presses and heats the embroidery object 5 from the upper surface of the transfer sheet 30 to color the embroidery object 5. When transferring a wide range of the same color, that is, a large pattern, the embroidery frame 4 may be moved and transferred to a desired pattern while the rotary solenoid 55 is lowered, or the rotary solenoid may be operated to temporarily transfer the pattern. The operation of moving the embroidery frame 4 after raising the heater 52 from above the sheet 30 may be repeated. Further, when performing transfer by changing the color, the rotary solenoid 55 is rotated to once raise the heater 52, and then the transfer sheet feed motor 26 is driven to wind up or rewind the transfer sheet 30 and feed frame. Change the color above.
Then, the rotary solenoid 55 is driven again to lower the heater 52 and transfer is performed. By repeating such operations, it is possible to transfer a plurality of colors to the upper surface of the embroidery object 5.

In this embodiment, the heater 52 has a circular shape and a flat bottom surface. However, the bottom surface is provided with irregularities to create a heart pattern, an animal pattern or a geometric pattern. A desired pattern may be transferred just by pressing the heater 52 from above. Further, although the transfer sheet 30 is a sheet in which a single color is printed in a plurality of colors at predetermined intervals, the transfer sheet 30 is not necessarily a single color, and may be a pattern in which a plurality of colors are mixed and mixed.

[0019]

According to the present invention, it is not necessary to remove the embroidery object from the embroidery frame when performing the transfer before and after the embroidery operation, and the positions of the embroidery frame and the embroidery object can be changed for both the transfer operation and the embroidery operation. Since the control is controlled by the control means, the transfer position is not shifted from the embroidered position, and embroidery and transfer can be performed at an accurate position.

[Brief description of the drawings]

FIG. 1 shows a front view of an embroidery machine according to an embodiment of the present invention.

FIG. 2 is an exploded side view of the transfer sheet feeder and the embroidery frame of the present embodiment.

FIG. 3 is a plan view of a transfer sheet feeder and an embroidery frame of the present embodiment.

FIG. 4 shows a transfer sheet of the present embodiment.

5 shows a view in the direction of arrow A in FIG. 1;

FIG. 6 shows a block diagram of the present embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Machine frame 2 Bed 3 Arm part 4 Embroidery frame 8a X moving arm (moving means) 8b Y moving bar (moving means) 10 X motor 11 Y motor 20 Transfer sheet feeding device (transfer sheet feeding means) 22 Feed frame (frame) 23 First Axis (Shaft) 24 Second Axis (Shaft) 26 Transfer Sheet Feeding Motor (Rotating Means) 30 Transfer Sheet 46 Embroidery Upper Shaft Motor (Embroidery Means) 50 Transfer Device (Transfer Means) 60 Control Circuit ( Control means)

──────────────────────────────────────────────────続 き Continuation of front page (58) Field surveyed (Int. Cl. ⁶ , DB name) D05B 21/00 B44C 1/16 D05C 7/00

Claims (2)

(57) [Claims] 1. A machine frame having a bead and an arm positioned above the bead, an embroidery frame movably disposed on the bead to fix an embroidery object, and moving the embroidery frame in a plane. Moving means for moving, embroidering means for performing embroidery on the embroidered object, transfer sheet feeding means provided on the upper surface of the embroidery frame, transfer means provided above the transfer sheet feeding means, An embroidery machine comprising a drive unit, the embroidery unit, the transfer sheet feeding unit, and a control unit for controlling the drive of the transfer unit. 2. The transfer sheet feeding means includes: a substantially quadrangular frame; a pair of shafts disposed on opposite sides of the frame and wound at both ends of the transfer sheet; 2. The embroidery machine according to claim 1, further comprising a turning means for turning, wherein the turning of the turning means is controlled by the control means.