JP3394893B2 - Hat frame device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hat frame device which is attached to an embroidery sewing device to form an embroidery pattern on a front portion or a side portion of a hat, and particularly to a large embroidery on the front portion and the side portion. When the hat frame for sewing the pattern is attached, the cloth for the hat is stretched by the guide roller, and when the hat frame for sewing the embroidery pattern is attached only to the front part,
The present invention relates to a guide roller that can be easily removed from the tip side portion of the guide roller that interferes.

[0002]

2. Description of the Related Art A multi-head embroidery sewing machine includes a plurality of embroidery sewing machines and an X-axis which is orthogonal to the cylinder beds of the embroidery sewing machines.
One has a cloth transport frame that is independently driven to move in the direction (left-right direction) and the Y direction (front-back direction), and an embroidery frame that is detachably attached to the cloth transport frame and that allows embroidered cloth to be set for embroidery sewing. Various cap frame devices for detachably mounting the embroidery sewing machine of the multi-head embroidery sewing device to embroider the front part of the cap have been put to practical use.

A general cap frame device is a base frame mounted movably in the Y direction, that is, the front-rear direction, in the vicinity of the cylinder bed of an embroidery sewing machine, and a base frame rotatably supported around an axis parallel to the Y direction. A rotating frame, a hat frame that is detachably attached to the rotating frame and sets a hat so that embroidery can be sewn, and a rotating mechanism that converts the X-direction movement of the cloth conveying frame into the rotating frame. It is configured (see, for example, Japanese Patent Laid-Open No. 8-232158). The base frame is connected to the cloth conveying frame through the connecting mechanism,
The base frame and the rotating frame are driven to move in the Y direction together with the cloth conveying frame.

Here, an ordinary hat frame is a hat support mounted on the rotating frame, and a hat support having a substantially rectangular opening corresponding to the embroidery area of the front part of the hat. , A holding frame that presses and holds the outer periphery of the opening to the hat support, and after setting the hat to be sewn on the hat support, connect the metal fittings at the left and right ends of the holding frame to the hat support. By engaging with the hook, the cloth corresponding to the embroidery area of a normal size (about 7 cm in length × about 10 to 12 cm in width) of the hat is held in a state of being stretched by the holding frame. In this case, on the inside of the fabric corresponding to the embroidery area of the hat, a back fabric called comfort is sewn on for reinforcement.

By the way, recently, as an embroidery pattern to be embroidered on a hat, a wide range in which the front portion of the hat is enlarged to the left and right side portions may be favored in terms of design. A wide type hat frame that partially supports only the brim sewn part of the front part of the has been developed, and by increasing the turning angle of the turning frame to attach the wide type hat frame, A wide range of embroidery patterns can be sewn from the front of the hat to the side. In this case, as described above, the back cloth for reinforcement is sewn so as to correspond to the embroidery area on the front surface, but most of the mountain portion of the cap (the cloth portion covering the head other than the brim) is in the free state. Therefore, since the enlarged embroidery region from the front part to the side part is not held in a curved shape, a hat support plate that supports the left and right sides of the needle drop position on the inner peripheral surface of the hat over a predetermined range is provided. I am trying.

However, when the wide-type cap frame is rotationally driven at high speed during sewing, a rotational delay occurs particularly near the top of the mountain portion in the free state, and between the cloth of the mountain portion and the hat support plate. Since the frictional resistance is generated, the fabric of the mountain portion is twisted and wrinkles are easily generated, which causes a problem that the quality of the embroidery pattern is deteriorated.

In view of this, in Japanese Unexamined Patent Publication No. 7-216716, the rotating frame is rotatably supported by four supporting rollers provided on the supporting plate of the base frame, while the upper side located on both left and right sides of the cap supporting plate. The pair of support rollers of
It is configured to extend longer than the hat support plate, and supports the inner surface of the mountain portion of the hat set on the hat frame while rotating by the tapered surfaces formed at the tip portions of the pair of support rollers. In addition, there is described a hat frame device which eliminates a delay in rotation due to friction between the mountain portion of the hat in the free state and the hat support plate at the time of sewing.

[0008]

As described above, in the hat frame device disclosed in Japanese Patent Laid-Open No. 7-216716, the upper side positioned on both the left and right sides of the hat support plate when the hat rotates during sewing. The inner surface of the mountain portion of the cap set on the cap frame is supported by the taper surfaces of the pair of supporting rollers, but instead of the wide type cap frame, an ordinary cap frame having a holding frame is provided. The cap support plate and support rollers are attached several millimeters lower than the rotation path of the cap so that the mounting brackets of the holding frame do not interfere with these cap support plates and support rollers when the Since the enlarged embroidery area from the portion to the side surface portion is not stretched in the rotation direction of the hat, that is, it is not stretched in a curved shape over the entire enlarged embroidery area, wrinkles are formed in the enlarged embroidery area. Easy to occur Now, it has yet to improve the quality of the embroidery pattern.

Therefore, the inventors of the present application increase the diameter of the pair of support rollers, and further provide these support rollers so as to face the turning locus of the cap mounted on the hat frame, and mount the wide type cap frame. In this case, each of these support rollers is always inscribed in the inner peripheral surface of the hat, so that the cloth in the enlarged embroidery area is held in a state of being always stretched by the support rollers in the rotation direction of the hat. The idea was to prevent wrinkles from occurring.

However, the embroidery pattern to be sewn on the hat is not always limited to a large embroidery pattern, and when a normal size embroidery area is to be embroidered, when a normal hat frame is used, a metal fitting for the presser frame is attached. So that they do not interfere with each other, and the support rollers that are not needed will be removed, when using the wide hat frame, it will be attached by adjusting the position of a pair of support rollers,
There are problems that the replacement work when replacing the hat frame to be used is complicated, and that the replacement work requires a great amount of work time.

An object of the present invention is to simplify the work of replacing a normal hat frame which is sewn only on the front portion of the hat with a wide hat frame which is sewn on the front and side portions.
Moreover, it is to improve the quality of large embroidery patterns when a wide hat frame is used.

[0012]

A cap frame device according to a first aspect of the present invention includes a base frame which is mounted near the cylinder bed of an embroidery sewing device so as to be movable in the longitudinal direction, which is the longitudinal direction of the cylinder bed. In a cap frame device having a pivot frame to which the cap frame is movably supported and is detachably mounted, a cap frame device is fixed to a base frame, and a predetermined range portion on the left and right sides of the needle drop position on the inner peripheral surface of the cap. And a curved cap support plate for supporting the cap support plate, which is arranged in the front-rear direction near the left and right sides of the cap support plate and is rotatable about the base frame so as to be inscribed on the inner peripheral surface of the cap mounted on the cap frame. With a pair of left and right guide rollers attached,
The guide roller is characterized in that a predetermined length portion of each guide roller is formed as a detachable split roller.

Near the cylinder bed of the embroidery sewing machine,
A base frame is attached so as to be movable in the longitudinal direction, which is the length direction of the cylinder bed, and a rotating frame is rotatably supported on the base frame, and a hat frame with a hat can be attached to and removed from the rotating frame. Be attached to. When the base frame is driven to move in the front-rear direction, the cap frame is simultaneously moved in the front-rear direction via the pivot frame, and when the pivot frame is pivoted, the cap frame is pivoted simultaneously. An embroidery pattern is sewn on a predetermined embroidery area of the cap mounted on the cap frame by the cooperation of the thread catcher provided on the cylinder bed and the sewing needle.

By the way, as a hat frame to which a hat is attached, a normal hat frame in which an embroidery pattern is sewn only on the front part of the hat, and a wide type in which a large embroidery pattern is sewn on the front part and its side part If there is a hat frame and the embroidery area when the wide type hat frame is attached is an enlarged embroidery area from the front part to the side part of the hat, basically,
Since only the sewn part of the brim of the front part of the hat is partially supported by the cap frame, most of the mountain part of the cap (the cloth part that covers the head other than the brim) is in a free state. The curved cap support plate fixed to the frame supports the inner peripheral surface of the cap which is relatively rotated at the time of sewing while sliding a predetermined range on both left and right sides of the needle drop position.

However, a pair of guide rollers disposed in the front-rear direction near the left and right sides of the hat support plate are rotatably attached to the base frame, and the guide rollers are internally provided on the inner peripheral surface of the hat. Since they are in contact with each other, the cloth in the enlarged embroidery area is always stretched by these guide rollers at the time of sewing, and therefore the cloth in the enlarged embroidery area does not press and contact the curved hat support plate. It is possible to reduce the frictional resistance to, the mountain portion of the hat rotates in synchronization with the hat frame, and prevent wrinkles from occurring in the enlarged embroidery area.

On the other hand, when the embroidery area when the normal hat frame is attached is only the front portion of the hat, a holding frame for holding the outer peripheral portion of the embroidery area of the front portion is provided. The mounting bracket of is provided in a protruding shape inside the hat frame. Therefore, the predetermined length portion of the guide roller that interferes with the mounting bracket of the presser frame is configured as a detachable split roller, so that the split roller can be easily removed and replaced with a wide hat frame. It can be easily replaced with a normal hat frame.

According to a second aspect of the present invention, in the first aspect of the present invention, the base end portion of each of the guide rollers makes frictional contact with the inner surface of the rotating frame and rotates in association with the rotation of the rotating frame. It is characterized by being moved. In this case, since each guide roller is in frictional contact with the inner surface of the rotating frame at the base end side portion thereof, the guide roller moves in the same direction as the rotating direction of the rotating frame in association with the rotation of the rotating frame. While rotating, the cap's mountain portion is positively and integrally rotated while inscribed on the inner peripheral surface of the hat, and the enlarged embroidery area maintains a beautiful curved shape over the entire area. Rotate. Other than that, the same operation as in claim 1 is achieved.

According to a third aspect of the present invention, in the hat frame device according to the first or second aspect, the split roller is formed to have a diameter slightly larger than that of the guide roller main body portion other than the split roller. Is. In this case, when the cap is rotated at the time of sewing, a rotation delay is more likely to occur toward the top part of the cap mountain part that is farther from the brim, but the split roller at the tip end side part of each guide roller is the guide roller body part. Since it has a slightly larger diameter than the above, the top side of the mountain portion is positively rotated so as to increase the rotation speed as much as possible, and the rotation delay is reliably eliminated. Other,
The same effect as in claim 1 or 2 is achieved.

A cap frame device according to a fourth aspect is the cap frame device according to any one of the first to third aspects, wherein the cap frame is a first cap frame used for embroidering only on a front portion of the cap.
A second hat frame used for embroidery sewing is selectively applied to the front portion and the side portion of the hat. When the first hat frame is attached, both split rollers are removed, and the second hat frame is attached. Sometimes, both split rollers are mounted. In this case, when the first hat frame is attached to the rotating frame and only the front portion of the hat is sewn on by embroidery, the pair of left and right split rollers are removed, so that the first hat frame interferes with the guide rollers. Can be installed without On the other hand, when the second hat frame is attached to the rotating frame and the front portion and the side portion of the hat are sewn on by embroidery, both split rollers can be easily attached. Each of them can be inscribed on the other side so that the enlarged embroidery area from the front part to the side part is always stretched. In addition, the same operation as that of any one of claims 1 to 3 is achieved.

A hat frame device according to a fifth aspect of the present invention is characterized in that, in the invention according to any one of the first to fourth aspects, a friction layer having a large friction coefficient is formed on an outer peripheral surface of the split roller. . In this case, when the cap is rotated during sewing, a rotation delay is more likely to occur at the top of the cap mountain portion, especially at the top of the cap portion farther from the brim, but the top portion of the mountain portion causes the friction formed on the outer peripheral surface of each split roller. The friction layer having a large coefficient ensures reliable rotation without slipping. In addition, the same operation as that of any one of claims 1 to 4 is achieved.

According to a sixth aspect of the present invention, in the hat frame device according to any one of the first to fourth aspects, the split rollers are made of a material having a large friction coefficient.
In this case, when the cap is rotated during sewing, a rotation delay is more likely to occur at the top of the cap mountain portion that is farther from the brim, but the top of the mountain portion slips due to the split rollers having a large friction coefficient. It is reliably rotated. In addition, the same operation as that of any one of claims 1 to 4 is achieved.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. The present embodiment is an example in which the present invention is applied to each of a plurality of hat frame devices that are detachably attached to a multi-head embroidery sewing device and that embroider a plurality of hats at once. As shown in FIG. 1, a multi-head embroidery device SM
Has an embroidery machine base frame 1 extending in the X direction (horizontal direction), and a substantially rectangular sewing machine support plate 2 arranged on the rear side of the upper surface of the embroidery machine base frame 1 and extending in the X direction.
On the sewing machine support plate 2, three multi-needle type embroidery sewing machines M1 to M3 having the same structure are arranged side by side in the X direction.

In each of the embroidery sewing machines M1 to M3, twelve needle bars and twelve needle bars are provided at the front end of the arm portion 3.
The needle bar case 7 that supports the individual balance 9 so as to be vertically movable,
It is supported so as to be movable in the X direction. On the other hand, the arm part 3
A bed main body 5 connected to the lower end of the pillar 4 is fixed on the sewing machine support plate 2, and a cylinder bed 6 extends forward from the front end of the bed main body 5, A yarn wheel catcher or the like is provided at the tip (front end) of the bed 6.

A sewing needle 8 is attached to the lower end of the needle bar of each needle bar case 7.
, 12 embroidery threads of 12 colors are respectively supplied from the 12 thread stands 11 of the thread stand 10 to the 12 sewing needles 8, and the needle bar case 7 is moved in the X direction to obtain a desired sewing needle. When one of the needle bars is selected by switching 8 to the sewing position facing the needle hole 12 at the tip of the cylinder bed 6, only the needle bar and the balance 9 connected thereto are driven up and down, and the needle The embroidery stitch is formed by the embroidery thread of the selected color in cooperation with the needle 8 of the rod and the thread catcher. The needle bar and the balance 9
The upper shaft that moves up and down and the lower shaft that rotates the thread catcher are
It is driven by a drive shaft 18 which is rotationally driven by a V belt 17 connected to a sewing machine motor.

On the front side of the sewing machine support plate 2, a work table 13 which can be raised to the same height as the upper surface of the cylinder bed 6.
Is provided, and a pair of auxiliary tables 14 and 15 are provided on both left and right sides of the work table 13. A rectangular frame-shaped cloth conveying frame long in the X direction is provided on both auxiliary tables 14 and 15. The drive frame portions 16a and 16b at both ends of 16 are placed and supported, and the right drive frame portion 16a is moved and driven in the X direction by an X-direction drive mechanism (not shown), and the left drive frame portion 1
6b and the right drive frame portion 16a are moved and driven in the Y direction by a Y direction drive mechanism (not shown).

The cap frame device 20 attached to each of the embroidery sewing machines M1 to M3 will be described. As shown in FIGS. 2 to 5, the hat frame device 20 has a Y
The guide shaft 21 extending in the direction (front-back direction), Y on the guide shaft 21.
A base frame 30 movably attached in a direction, a rotation restricting mechanism 24 for restricting rotation of the base frame 30,
A rotating frame 40 rotatably supported on the base frame 30 about an axis parallel to the Y direction, a rotating mechanism 50 for rotating the rotating frame 40, and the base frame 30 operatively connected to the cloth conveying frame 16. A connecting mechanism 80, a cap supporting plate 85 attached to the vertically connecting plate 35 attached to the base frame 30 and a pair of guide rollers 90, and a hat frame 100 detachably attached to the rotating frame 40, 11
It is composed of 0 etc.

The guide shaft 21 is detachably mounted from the front in a horizontal mounting hole 22 oriented in the Y direction formed in the bed main body 5 on the base end side of the cylinder bed 6, and a fixture 23.
The base frame 30 is supported by the guide shaft 21 so as to be movable in the Y direction by being fixedly fixed to the bed main body portion 5. The base frame 30 is formed with three arm portions 30a, 30a, 30b forming a Y shape in a front view, and the upper end portion of each of the pair of upper arm portions 30a is
A pair of roller members 33 that rotatably support the rotating frame 40 from the outside are provided. However, these roller members 33 can adjust the rotational center of the rotary frame 40 in the radial direction via an eccentric mechanism.

Explaining the rotation restricting mechanism 24, the key member 2 extending in the Y direction is provided on the lower surface of the cylinder bed 6.
5 is fixed, and the key member 25 is attached to the base frame 30.
A groove-shaped member 26 that slidably engages in the front-rear direction to restrict the rotation of the base frame 30 is fixed, and the base frame 30 is restricted so as not to rotate about an axis parallel to the Y direction. It is movable only in the Y direction along the guide shaft 21.

The rotating frame 40 will be described. The rotating frame 40 includes an annular portion 41 having a circular cross section and an annular portion 4
1 is provided with a hat frame support portion 42 having a semicircular arc-shaped cross section that extends forward from the upper half portion by a predetermined length, and the roller member 33 is fitted on the outer peripheral portion of the annular portion 41 to roll the roller groove 43.
And a wire guide groove 44 for guiding the wire 51 of the rotating mechanism 50.
Are formed. The lowermost portion of the annular portion 41 is guided by the roller member 34 attached to the lower end of the lower arm portion 30b of the base frame 30, and the outer peripheral portion of the annular portion 41 is externally fitted to the hat frame support portion 42. Hat frame 100,110
The four engaging rollers 45 that engage with the engaging holes of the cap frame 100 and 110 to detachably hold the hat frames 100 and 110 on the rotating frame 40,
It is elastically biased by a spring member.

Next, the rotating mechanism 50 will be described. The rotating mechanism 50 converts the movement of the cloth conveying frame 16 in the X direction into the rotation of the rotating frame 40.
The wire 51 wound around, the fixing member 52 elongated in the X direction that is releasably fixed to the cloth conveying frame 16, and the both end portions of the wire 51 that are relatively movable in the X direction with respect to the base frame 30. Is formed of a movable member 55 which is slender in the X direction and has wire connecting portions 65 and 70 for connecting the two.

1 is provided at each of both ends in the X direction of the fixing member 52.
A pair of connecting holes 53 is formed, and a screw member with a knob (not shown) inserted through the pair of connecting holes 53 in the X direction with the lower surface of the fixing member 52 abutting on the X direction frame portion 16c. The fixing member 52 is screwed to the frame portion 16c so that the fixing member 52 is in the X direction frame portion 16c.
To be concluded. As shown in FIG. 5, the movable member 55 is integrally formed in a horizontal U shape on the front side of the horizontal plate portion 56, which is placed and fixed on the fixed member 52, and has a base frame. Upper end bent portion 3 of connecting plate 35 fixed to 30
6 has an engaging wall portion 57 with which it engages.

Then, through a pair of long holes 77 formed in the movable member 55, by a screw member 76 with a knob,
The horizontal plate portions 56 are releasably fastened to the fixed member 52, respectively, and as will be described later, when the fixed member 52 is moved in the X direction integrally with the X direction frame portion 16c, the movable member 55 is also moved. Moved in the X direction. On the other hand, the screw member 7
Even when the cap frame device 20 is removed from the multi-head embroidery sewing device SM by removing 6, the movable member 55 is always engaged via the upper end bent portion 36 of the connecting plate 35 attached to the base frame 30. Therefore, the fixed member 52, the movable member 55, the wire 51, and the like are held in a predetermined connection relationship with the base frame 30.

The wire connecting portion 6 on the left side of the movable member 55.
5 is composed of a horizontal connecting plate 66 that is fixed to the lower surface of the movable member 55 and projects forward, and a connecting piece 68 that is connected to the upper surface of the connecting plate 66 so as to be movable in the X direction. The wire 51 extending from 40 to the left side is the connecting plate 6
The end of 6 is bent upward in a U-turn shape, and the end of the wire 51 is fixed to the connecting piece 68. On the other hand, the wire connecting portion 70 on the right side has a horizontal connecting plate 71 which is fixed to the lower surface of the movable member 55 and projects forward, and the rotating frame 40.
The wire 51 extending to the right from is bent upward in a U-turn shape at the end of the connecting plate 71, and the end of the wire 51 is fixed to the connecting plate 71.

Next, the connecting mechanism 80 will be briefly described with reference to FIG. 5. The connecting member 81 supports the flanged shaft 82, and the upper end of the operating lever 83 is rotatable on the flanged shaft 82. When pivotally supported and the operating lever 83 is operated to switch the collared shaft 82 to the fixed position, the collared shaft 82 is moved downward by a clamp mechanism (not shown), and the collared shaft 82 is moved.
The coupling member 81 is fixed to the Y-axis feed member 28 by the flange portion 82a at the upper end of the. That is, the base frame 30 is connected to the cloth conveying frame 16 via the connecting mechanism 80, and is moved together with the cloth conveying frame 16 in the Y direction.

A cap support plate 85 having a guide portion 85a that is curved similarly to the curved shape of the hat frame support portion 42 is disposed immediately in front of the hat frame support portion 42. The plates 85 are respectively fixed to a pair of front-rear direction support rods 86 located on both the left and right sides of the cylinder bed 6, and the rear end portions of these support rods 86 are connected to the connecting plate 35.
Is stuck to. That is, the cap support plate 85 is set on the rotating frame 40 together with the cap frames 100 and 110 which will be described later, and the needle hole 12 (needle drop position) is formed on the inner peripheral surface of the cap 29 protruding forward of the rotating frame 40. It is configured to support while sliding a predetermined range portion on both left and right sides of the. However, the height of the hat support plate 85 is normally the prevention frame 110.
Is set several millimeters lower than the turning locus of the cap 29 so as not to interfere even when the cap is worn.

On the other hand, a pair of left and right guide rollers 90 facing the front-rear direction are provided near the left and right sides of the guide portion 85a of the hat support plate 85, which correspond to the pair of roller members 33, respectively. The roller 90 is made of synthetic resin and is rotatably attached to the connecting plate 35 at its base end (rear end). That is, each guide roller 90 has the same structure as shown in FIG. 6, and the base frame 30 and the connecting plate 3 are connected.
5, the base ends of the stepped bolts 96 are screwed, the pair of bearings 97 are fitted into the stepped bolts 96, and the base ends of the guide rollers 90 are press-fitted onto the bearings 97. Each guide roller 90 is rotatably supported.

By the way, as shown in FIGS. 6 and 7, each guide roller 90 includes a roller main body 91 (corresponding to the guide roller main body) which is a major part of the guide roller 90, and a leading end side of the guide roller 90. Dividing roller 9 corresponding to a predetermined length portion
2, the split roller 92 has a diameter slightly larger than that of the roller body portion 91 and the roller body portion 9
It is configured to be attachable to and detachable from the user. That is, the roller body 9
The tip portion of 1 is formed in a slightly stepped shape over a predetermined length, that is, as a small diameter portion 91a, and a straight pin 98 is fixed in a penetrating manner in the vicinity of the base end of the small diameter portion 91a. Here, each guide roller 90 is provided at a position where the outer peripheral surface facing the roller member 33 faces the rotation trajectory of the cap 29, and is surely inscribed in the inner peripheral surface of the cap 29.

On the other hand, the dividing roller 92 is formed in a cap shape having a hollow inside, and the dividing roller 9
A coil spring 93 is fixed to the inside of the roller 2, and the straight pin 9 is attached to the open end of the split roller 92.
A pair of substantially J-shaped engaging holes 92a in plan view which can be engaged with both ends of the engaging hole 8 are formed to face each other. As a result, by pushing the opening portions of the engaging holes 92a of the split roller 92 to the roller body 91 side in a state where they correspond to the straight pins 98 and rotating them in the right rotation direction, the split roller 92 is rotated.
Can be attached to the roller body 91. On the other hand, the split roller 9
The split roller 92 can be removed from the roller body 91 by rotating the roller 2 in the counterclockwise direction while pushing it into the roller body 91.

Here, a rubber film 94 having a large friction coefficient is formed as a friction layer on the outer peripheral surface of the split roller 92. That is, the split roller 92 having the rubber film 94 formed thereon.
However, as will be described later, the cap 29 is surely inscribed on the inner peripheral surface of the mountain portion (the cloth portion covering the head other than the collar 29a) 29b of the hat 29. Further, a rubber film 95 having a large friction coefficient is also formed on the base end portion of the roller body 91, and the rubber film 95 makes frictional contact with the inner surface of the rotating frame 40. It is designed to be rotated in conjunction with the rotation.

Next, the hat frames 100 and 110 will be described. Here, as the hat frames 100 and 110, the hat 2
Normal size corresponding to the front part of 9 (length about 7 cm × width about 1
Standard embroidery area EM that forms an embroidery pattern of 0 to 12 cm)
A normal hat frame 110 (corresponding to the first hat frame) having (see FIG. 10), and a wide large embroidery pattern (about 7 cm in length × 14 to 15 in width) from the front part to the side part of the cap 29.
cm) and an enlarged embroidery area EL (see FIG. 2) forming a wide hat frame 100 (corresponding to a second hat frame),
First, the wide hat frame 100 will be described. Wide hat frame 1
As shown in FIGS. 2 and 9, 00 is a curved cap frame main body 101 that is detachably attached to the rotating frame 40, and a cap 29 is sandwiched between the cap frame main body 101 and is detachably fixed from the outside. And a pressing frame member 102 that is formed.

The cap 29 is attached to the cap frame 100 at a preparation station (not shown). In this case, as shown in FIG. 2, only the outer peripheral portion of the cap 29 corresponding to the sweat removing part is covered on the cap frame body 101. , Brim 2 of the front part
Only the sewn portion 9a (brim) is pressed from the outside by the press frame member 102, and the left and right ends of the press frame member 102 are attached to the cap frame body 101. Then, as shown in FIGS. 8 to 9, the wide hat frame 100 is attached to the rotating frame 40.
In this case, most of the mountain portion 29b of the hat 29 is in a free state.

Next, the operation of the hat frame device 20 will be described. As shown in FIGS. 8 to 9, when the wide cap frame 100 is attached to the rotating frame 40, as described above,
The cap 29 is supported only by the cap frame main body 101 and the pressing frame member 102 at the sewn part of the brim 29a of the front part, so that the mountain portion 29 of the cap 29 is supported.
Most of b are in a free state. By the way, at this time, the curved cap support plate 85 fixed to the connecting plate 35.
Supports a predetermined range of left and right sides of the needle hole 12 on the inner peripheral surface of the cap 29, and a pair of left and right guide rollers 90 provided near the left and right sides of the guide portion 85a of the hat support plate 85. Are inscribed on the inner surface of the hat 29, respectively.

That is, the cloth in the enlarged embroidery area EL is always stretched by the guide rollers 90 in the rotating direction of the hat 29, and no wrinkles are generated in the cloth in the enlarged embroidery area EL. The movable member 55 moves in the X direction when the cloth conveying frame 16 is driven to move in the X direction and the Y direction to perform embroidery sewing, particularly when the cloth conveying frame 16 moves in the X direction. At the same time, the rotating frame 40 is connected via the wires 51 of the wire connecting portions 65 and 70.
And the wide hat frame 100 are integrally rotated in the clockwise direction and the counterclockwise direction.

At this time, the cap support plate 85 supports while sliding a predetermined range portion on the left and right sides of the needle hole 12 on the inner peripheral surface of the cap 29 which is relatively rotated. Since the pair of guide rollers 90 that are in frictional contact with the rotating frame 40 are rotated in synchronization with the rotation of the rotating frame 40, the cloth in the enlarged embroidery area EL is cap supporting plate 85. The cap support plate 85
The frictional resistance against is reduced and the mountain portion 29b of the hat 29 is reduced.
While rotating substantially in synchronization with the wide hat frame 100, it is possible to sew a beautiful embroidery pattern in the enlarged embroidery area EL while preventing wrinkles from occurring in the enlarged embroidery area EL.

Particularly, when the cap 29 is rotated during sewing, a rotation delay is more likely to occur on the top portion 29c of the mountain portion 29b of the cap 29, which is farther from the brim 29a, but the split roller on the tip side of each guide roller 90. 92 is a roller body 9
1, the rubber film 94 having a large friction coefficient is formed on the outer peripheral surface of the split roller 92, and the cloth on the top 29c side thereof is positively supported by the split roller 92. Since it is rotated to the mountain part 29
b is reliably rotated without slipping integrally.

Next, the ordinary hat frame 110 having the ordinary size standard embroidery area EM will be described. As shown in FIGS. 10 to 12, the hat support 112 is attached to the rotating frame 40 and is a hat. From a cap support 112 having a substantially rectangular opening 111 corresponding to the standard embroidery area EM on the front of 29, and a holding frame 113 for pressing and holding the outer periphery of the opening 111 on the cap support 112. After setting the hat 29 to be used for sewing on the hat support 112, the fixing portions 113a at the left and right ends of the holding frame 113 are attached to the hat support 112, so that the cloth corresponding to the standard embroidery area EM of the hat 29 can be obtained. The holding frame 113 is held in a tensioned state.

In this case, the fixed portion 113a of the holding frame 113
In the above, the fixing metal fittings and the like are normally projected inside the hat frame 110, but the hat support plate 85 is slightly lower than the turning locus of the hat 29, as described above, and therefore, the fixing portion 113a. Does not interfere with the hat support plate 85. However, since the fixed portion 113a of the pressing frame 113 interferes with the tip end side portions of the pair of guide rollers 90, the split rollers 92 of each guide roller 90 are simultaneously removed.

That is, since the tip portion of the roller body 91 to which the split roller 92 is mounted is the small diameter portion 91a, even if the ordinary cap frame 110 is rotated, the fixed portion 113a is guided by the guide roller 90.
No longer interfere with. At this time, since the divided rollers 92 can be attached to and detached from the roller main body 91, the divided rollers 92 can be easily removed, and the ordinary hat frame 110 can be removed.
Can be easily attached to the rotating frame 40. Then, similarly to the wide hat frame 100, the cloth conveying frame 16 is moved and driven in the X direction and the Y direction, respectively, and a beautiful embroidery pattern can be sewn in the standard embroidery area EM.

As described above, the base frame 30 is mounted near the cylinder bed 6 of the multi-head embroidery device SM so as to be movable in the longitudinal direction, which is the longitudinal direction of the cylinder bed 6.
In the hat frame device 20 including the rotating frame 40 that is rotatably supported by the base frame 30 and the wide hat frame 100 is detachably mounted, the curved hat supporting plate 8 is provided.
5 and a pair of left and right guide rollers 90 rotatably attached to the base frame 30 so as to surely inscribe the inner peripheral surface of the hat 29 mounted on the wide hat frame 100. Even in the wide cap frame 100 that is sewn on the enlarged embroidery region EL from the side to the side surface side, even in the free state in which the mountain portion 29b of the cap 29 is not supported, the pair of guide rollers 90 expand the embroidery region EL. Can be kept in a tensioned state, the mountain portion 29b of the hat 29 can be rotated substantially in synchronization with the wide hat frame 100, wrinkles do not occur in the enlarged embroidery area EL, and a large embroidery pattern can be formed. The quality can be improved.

Further, each guide roller 90 frictionally contacts the inner surface of the rotating frame 40 through the rubber film 95 having a large friction coefficient formed on the base end side portion thereof, and interlocks with the rotating of the rotating frame 40. Since the cap 29 is inscribed in the inner peripheral surface of the cap 29, the mountain portion 29b of the cap 29 can be positively and integrally rotated, and the enlarged embroidery area EL is beautiful over the entire area. It can be rotated while holding it in a curved shape.

Further, when the cap 29 is rotated during sewing, a rotation delay is more likely to occur at the top portion 29c of the mountain portion 29b of the cap 29, which is farther from the brim 29a, but the split roller on the tip side of each guide roller 90. 92 is a roller body 9
1, the rubber film 94 having a large friction coefficient is formed on the outer peripheral surface of the split roller 92, and the cloth on the top 29c side thereof is positively supported by the split roller 92. Since it is rotated to the mountain part 29
b is reliably rotated without slipping integrally.

In addition, instead of the wide cap frame 100, when the ordinary cap frame 110 used for embroidering only on the front part of the cap 29 is mounted on the rotating frame 40, the fixing portion 113a of the pressing frame 113 is fixed. Interfere with the tip side portion of the guide roller 90, so that the pair of left and right split rollers 92 are to be removed respectively. However, since each split roller 92 is detachably attached to the roller body 91, each split roller is detached. 92 can be easily removed and these split rollers 9
Since the tip side portion of the roller main body 91 from which 2 is removed is the small diameter portion 91a, even if the ordinary hat frame 110 rotates, the fixed portion 1
13a does not interfere with the guide roller 90. Accordingly, the ordinary hat frame 110 can be easily attached to the rotating frame 40.

As a modification of the above embodiment, each guide roller 90 may be configured as follows. 1) The entire divided rollers 92 may be made of a material having a large friction coefficient, for example, a hard rubber body or a synthetic resin or hard rubber whose surface is roughened like a file. 2) A spiral screw is formed on each of the outer circumference of the small diameter portion 91 of the roller main body 91 and the inner circumference of the split roller 92 so that the split roller 9
2 may be detachably screwed to the roller body 91.

3) As shown in FIG. 13, an engaging recess 91b is formed in the small diameter portion 91a of the roller body 91A, and a strip-shaped elastic piece 92a formed by two parallel slits is formed in the split roller 92A. Even if the split roller 92A is detachably attached to the roller body 91A, the elastic projection 92a is engaged with the engaging projection 92b projecting inward so as to be engageable with the engaging recess 91b. Good.

4) As shown in FIG. 14, a movable pin 121 retractable by the coil spring 120 is provided on the small diameter portion 91a of the roller main body 91B to divide the roller 92B.
The split roller 92A may be detachably attached to the roller body 91A by engaging the movable pin 121 with the engaging hole 92c formed in the above. It should be noted that the present invention is not limited to the above-described embodiment, and various modifications are made to each mechanism of the above-described embodiment based on existing technology or technology obvious to those skilled in the art without departing from the technical idea of the present invention. It is possible.

[0056]

According to the first aspect of the present invention, a base frame movably mounted in the longitudinal direction of the cylinder bed in the vicinity of the cylinder bed of the embroidery sewing machine and a rotatably supported base frame. In a cap frame device having a rotating frame to which the cap frame is detachably mounted, a cap supporting plate having a curved shape and a cap frame mounted on the base frame so as to be inscribed on the inner peripheral surface of the cap. Since a pair of left and right guide rollers movably attached is provided,
A wide type hat frame that is sewn on the enlarged embroidery area from the front part to the side surface side. Even if the cap portion of the hat frame is not supported, the cloth of the enlarged embroidery area is formed by the pair of guide rollers. Can be kept in a tensioned state, the mountain portion of the hat can be rotated substantially in synchronization with the hat frame, wrinkles do not occur in the enlarged embroidery area, and the quality of a large embroidery pattern can be improved. .

On the other hand, since the predetermined length portion on the front end side of each guide roller is constructed as a detachable split roller, when the ordinary cap frame for embroidering is attached only to the front portion, the split roller can be easily separated. It can be removed, therefore, it can be easily replaced with a normal hat frame instead of the wide type hat frame, and the normal hat frame can be attached to the rotating frame without interfering with the guide rollers and attached to the front part of the hat. Can be sewn on embroidery.

According to the invention of claim 2, the same effect as that of claim 1 is obtained, but the base end side portion of each of the guide rollers frictionally contacts the inner surface of the rotating frame to rotate the rotating frame. Since it is rotated in conjunction with it, it is possible to positively and integrally rotate the mountain portion of the hat while inscribed on the inner peripheral surface of the hat, and the enlarged embroidery area has a beautiful curve over the entire area. It can be rotated while holding the shape.

According to the invention of claim 3, the same effect as that of claim 1 or 2 is obtained, but since the split roller is formed to have a diameter slightly larger than the guide roller main body portion other than the split roller, It is possible to positively eliminate the rotation delay by making the split rollers positively and rapidly rotate the top side of the mountain portion of the hat where the rotation delay is likely to occur, particularly away from the brim.

According to the invention of claim 4, the same effect as in any one of claims 1 to 3 is obtained, but the first cap frame used for embroidering only on the front part of the cap is the rotating frame. In this case, since the pair of left and right split rollers are removed, the first hat frame can be attached without interfering with the guide roller. On the other hand, when the second hat frame used for embroidery sewing on the front portion and the side surface portion of the hat is mounted on the rotating frame, both split rollers can be easily mounted,
These divided rollers can be inscribed in the inner peripheral surface of the hat, respectively, so that the enlarged embroidery area from the front portion to the side portion can be always stretched, and a large embroidery pattern can be beautifully sewn.

According to the invention of claim 5, the same effect as in any one of claims 1 to 4 is obtained, but since a friction layer having a large friction coefficient is formed on the outer peripheral surface of the split roller, it is possible to sew at the time of sewing. When the cap is rotated, the cap can be surely rotated without slipping the top of the mountain portion of the cap, which is apt to cause a delay in rotation, in particular, the top of the cap away from the brim. According to the invention of claim 6, the same effect as that of any one of claims 1 to 4 is obtained, but since the split roller is made of a material having a large friction coefficient, the same effect as that of claim 3 is obtained. To be

[Brief description of drawings]

FIG. 1 is an overall perspective view of a multi-head embroidery device according to an embodiment of the present invention.

FIG. 2 is a perspective view of a hat frame device and a rotating mechanism in which a wide hat frame is removed.

FIG. 3 is a plan view of a hat frame device and a rotating mechanism in which a wide hat frame is removed.

FIG. 4 is a front view of a hat frame device and a rotating mechanism in which a wide hat frame is removed.

FIG. 5 is a side view of the hat frame device with the wide hat frame removed.

FIG. 6 is a partially cutaway enlarged side view of a guide roller.

FIG. 7 is a vertical sectional side view of a guide roller.

FIG. 8 is a view corresponding to FIG. 3 with a wide hat frame attached.

9 is a view corresponding to FIG. 5 with a wide hat frame attached.

FIG. 10 is a view corresponding to FIG. 2 with the ordinary hat frame removed.

FIG. 11 is a view corresponding to FIG. 8 with a normal hat frame attached.

FIG. 12 is a view corresponding to FIG. 9 with a normal hat frame attached.

FIG. 13 is a partial side view of a guide roller according to a modification.

FIG. 14 is a view corresponding to FIG. 7 of the guide roller according to the modification.

[Explanation of symbols]

SM multi-head embroidery sewing machine 6 cylinder bed 12 needle holes 20 Hat frame device 29 hats 30 base frame 40 rotating frame 85 Hat support plate 90 Guide roller 91, 91A, 91B Roller body 92, 92A, 92B split roller 94 rubber film 95 rubber film 100 wide hat frame 110 Ordinary hat frame

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-7-258957 (JP, A) JP-A-8-209523 (JP, A) JP-B 4-40466 (JP, B2) Patent 3169044 (JP, JP, B2) (58) Fields investigated (Int.Cl. ⁷ , DB name) D05C 9/00-9/22 D05B 39/00

Claims (6)

(57) [Claims] 1. A base frame movably mounted in the longitudinal direction of the cylinder bed in the vicinity of the cylinder bed of an embroidery sewing device, and a cap frame rotatably supported by the base frame and detachably mounted. In a cap frame device having a rotating frame, a curved cap support plate fixed to the base frame and supporting a predetermined range portion on both left and right sides of the needle drop position on the inner peripheral surface of the cap, A pair of left and right guide rollers disposed in the front-rear direction near the left and right sides of the hat support plate and rotatably attached to the base frame so as to be inscribed on the inner peripheral surface of the hat mounted on the hat frame. A hat frame device, characterized in that the front end side predetermined length portion of each of the guide rollers is configured as a detachable split roller. 2. The proximal end portion of each of the guide rollers frictionally contacts the inner surface of the rotating frame and is rotated in conjunction with the rotation of the rotating frame. Hat frame device. 3. The hat frame device according to claim 1, wherein the split roller is formed to have a diameter slightly larger than that of the guide roller main body portion other than the split roller. 4. The cap frame includes a first cap frame used for embroidering only on the front part of the cap and a second cap frame used for embroidering on the front and side parts of the cap. 4. The method according to any one of claims 1 to 3, which is selectively applied, and when the first hat frame is mounted, both split rollers are removed, and when the second hat frame is mounted, both split rollers are mounted. The hat frame device according to item 1. 5. The hat frame device according to claim 1, wherein a friction layer having a large friction coefficient is formed on an outer peripheral surface of the split roller. 6. The hat frame device according to claim 1, wherein the split roller is made of a material having a large friction coefficient.