JP3992761B2 - Embroidery method and embroidery sewing machine for tubular work cloth - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for embroidering a cylindrical work cloth such as a T-shirt and a sweater, and an embroidery sewing machine suitable for the embroidery.
[0002]
[Prior art]
7 to 9 show a conventional multi-head embroidery sewing machine 50 that can be embroidered on a cylindrical work cloth. The embroidery sewing machine 50 includes a plurality of embroidery heads 52 provided above the machine frame 51, a plurality of cylindrical beds 53 provided on the upper part of the machine frame 51 so as to correspond to the bottom of each embroidery head 52, A fixed table 54 provided at substantially the same height as the cylindrical bed 53 behind the cylindrical bed 53 and an elevating table 55 provided so as to be able to ascend and descend in front of the fixed table 54 are provided. Above the elevating table 55, a drive frame 56 including a laterally extending base frame 57 and a plurality of pairs of arms 58 extending forward from the base frame 57 is disposed, and the drive frame 56 is located below the fixed table 54. It is moved forward, backward, left and right by a provided drive device (not shown).
[0003]
Then, by sandwiching the processing peripheral portion Wb of the cylindrical work cloth W between the inner frame 61 and the outer frame 62 of the embroidery frame 60, the processing portion Wa of the cylindrical work cloth W is expanded in the embroidery frame 60, and The remaining portion Wc of the cylindrical work cloth W is suspended from the embroidery frame 60. The attachments 63 provided on the left and right sides of the embroidery frame 60 are attached to the front end portions of the pair of arms 58. While the embroidery frame 60 is moved back and forth and right and left by the drive frame 56, an embroidery stitch is added to the processing portion Wa by the cooperation of a needle 59 provided on the embroidery head 52 and a hook (not shown) built in the cylindrical bed 53. Form.
[0004]
[Problems to be solved by the invention]
However, in the above-described embroidery method, since the processing peripheral portion Wb is sandwiched between the inner frame 61 and the outer frame 62 of the embroidery frame 60, the portion Wb is wrinkled, so that the product T-shirt, theta, etc. There was a problem that pinch marks remained.
In the above-described embroidery sewing machine 50, the embroidery frame 60 is attached to the front end of the arm 58 extending forward from the base frame 57. Therefore, the arm 58 is bent downward by the weight of the cylindrical work cloth W, and the embroidery frame 60 is drooped forward. There was something to do. In this case, the tubular work cloth W is in close contact with the front end of the tubular bed 53, and the stretched tubular work cloth W may be loosened or the embroidery stitch may be damaged.
[0005]
Accordingly, a first object of the present invention is to provide an embroidery method in which a pinch mark by an embroidery frame does not remain on a cylindrical work cloth.
A second object of the present invention is to provide an embroidery sewing machine that prevents the embroidery frame from drooping due to the weight of the cylindrical work cloth and prevents the cylindrical work cloth and the cylindrical bed from coming into close contact with each other. is there.
[0006]
[Means for Solving the Problems]
In order to solve the above problems, an embroidery method for a cylindrical work cloth according to a first aspect of the present invention includes a support plate provided with a punched hole and coated with an adhesive on the upper surface, and a peripheral portion thereof as an inner frame of an embroidery frame. Putting an embroidery frame with attachments on the front and back sides inside a cylindrical work cloth with a cylindrical opening at the front and rear ends by inserting it between the outer frame and the outer frame Place the processed part of the cloth above the punched hole, attach the processing peripheral part of the cylindrical processed cloth to the support plate with adhesive, and place the remaining part of the cylindrical processed cloth between the inner frame and the outer frame of the embroidery frame. The embroidery frame can be suspended from the front and back of the embroidery frame with the cylindrical bed extending in the front-rear direction of the embroidery sewing machine inserted into the cylindrical work cloth and positioned directly under the processing part. Attaching the embroidery frame to the drive frame of the embroidery sewing machine with the side fittings While it is moving, and a step of forming embroidery stitches processing portion of the cylindrical workpiece cloth.
[0007]
In this embroidery method, the cylindrical work cloth is attached to the embroidery frame simply by sticking it to the support plate with an adhesive, and is not pinched as in the conventional case, so there is no embroidery mark left on the cylindrical work cloth. .
[0008]
Further, the embroidery sewing machine of the usage example includes a cylindrical bed provided at the upper part of the machine frame, a fixed table provided substantially at the same height as the cylindrical bed at the rear of the cylindrical bed, and a cylinder at the front of the fixed table. An elevating table provided with a notch portion that is provided so as to be able to rise and descend between substantially the same height as the shape bed and a lowering position lower than the shape bed, and into which the tubular bed fits when raised to substantially the same height as the tubular bed; An embroidery sewing machine comprising a drive frame that is disposed mainly above the lifting table and is moved back and forth and left and right by a drive device provided on the fixed table side, and an embroidery frame attached to the drive frame. A pair of fixed table extensions located on the left and right sides of the lifting table are formed at both ends, and the left and right ends of the drive frame are always placed on and supported by the upper surfaces of the pair of fixed tables. It was constructed in. It is preferable to provide a friction reducing member on the lower surfaces of the left and right ends. Examples of the friction reducing member include felt plates and rolling balls.
[0009]
According to this embroidery sewing machine, when the embroidery frame is moved back and forth and left and right by the drive frame, the left and right ends of the drive frame are always supported on and supported by the upper surfaces of the pair of fixed table extensions. The front sag of the embroidery frame is prevented.
[0010]
Another example of the embroidery sewing machine includes a cylindrical bed provided at the upper part of the machine frame, a fixed table provided at substantially the same height as the cylindrical bed behind the cylindrical bed, and forward of the fixed table. Is provided so as to be able to ascend and descend between substantially the same height as the cylindrical bed and a lowering position lower than the cylindrical bed, and is provided with a notch for accommodating the cylindrical bed when it rises to substantially the same height as the cylindrical bed. In an embroidery sewing machine comprising a table, a drive frame that is arranged above the elevating table and is moved forward and backward and left and right by a drive device provided on the fixed table side, and an embroidery frame attached to the drive frame Further, a support leg extending downward and having a lower end contacting the upper surface of the lowered lifting table was attached, and a friction reducing member was provided at the lower end. Examples of the friction reducing member include felt plates and rolling balls.
[0011]
According to this embroidery sewing machine, when the embroidery frame is moved back and forth and left and right by the drive frame, the friction reducing member at the lower end of the support leg contacts the upper surface of the lowered lift table, and the drive frame is supported. The front sag of the embroidery frame due to the weight of the work cloth is prevented.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
1 to 4 show a single-head embroidery sewing machine according to a first embodiment and an embroidery method for a cylindrical work cloth.
As shown in FIG. 1, the single-head embroidery sewing machine 1 is configured based on a machine frame 4 including a leg 2 and a connecting member 3 thereof. One embroidery head 5 is attached above the machine frame 4 so that the embroidery head 5 can select and drive one needle from a large number of needles 6 through which upper threads (not shown) of different colors are passed. It has become. A cylindrical bed 7 is provided above the machine frame 4 so as to be positioned below the embroidery head 5, and a hook 8 containing a bobbin of a lower thread (not shown) is built in the cylindrical bed 7.
[0013]
A fixed table 10 is fixed to the upper part of the machine frame 4 at substantially the same height as the cylindrical bed 7 behind the cylindrical bed 7. Further, in front of the fixed table 10, a lifting table 11 is attached to the machine frame 4 via a lifting drive device (not shown). Further, a pair of fixed table extensions 12, 12 that extend forward and are located on both the left and right sides of the lifting table 11 are formed integrally with the fixed table 10 at both left and right ends of the fixed table 10.
[0014]
The lifting / lowering table 11 is supported by the lifting / lowering drive device so that it can be raised and lowered between substantially the same height as the cylindrical bed 7 and a lowering position lower than the cylindrical bed 7. A notch 13 for receiving the shaped bed 7 is provided. A combination of a handwheel and a rack and pinion gear is used in the lifting drive, but other combinations such as a motor and a rack and pinion gear, a parallel crank mechanism and a spring, and the like can be exemplified.
[0015]
A rectangular frame-shaped drive frame 15 is disposed mainly above the lifting table 11. The front side of the drive frame 15 is extended to the left and right, and the left and right ends 15a, 15a are always supported on the upper surfaces of the pair of fixed table extensions 12, 12. A felt plate 16 as a friction reducing member is attached to the lower surfaces of the left and right end portions 15a, 15a so that the upper surfaces of the fixed table extension portions 12, 12 can slide smoothly. The drive frame 15 is attached to a drive device 18 provided on the fixed table 10 side by a fixture 17 provided on the rear side thereof, mainly above the lifting table 11 (partly above the fixed table 10). There is also a movement to the front, back, left and right.
[0016]
The driving device 18 is provided on the boundary between the tables 10 and 11 and guides the fixture 17 so as to be movable left and right. The driving device 18 is provided on the fixed table extension 12 and can move the lateral guide member 19 back and forth. The guide rail 20 is guided below, and a pulse motor (not shown) is provided below the fixed table 10 to perform the left-right movement and the back-and-forth movement.
[0017]
An embroidery frame 22 with a support plate 27 is attached to the drive frame 15. The embroidery frame 22 includes an inner frame 23, an outer frame 24, and a fixture 25 attached to the front and rear sides of the inner frame 23. The fixture 25 is detachably attached to the front and rear sides of the drive frame 15. The support plate 27 is made of a transparent plastic plate, and has a punch hole 28 at the center and is coated with an adhesive 29 on the upper surface. The embroidery frame 22 is sandwiched between the inner frame 23 and the outer frame 24. It is stretched inside. The support plate 27 may be an opaque plastic plate or a strong cloth.
[0018]
When the single-head embroidery sewing machine 1 configured as described above is used for embroidery on a flat work cloth (not shown), the lifting table 11 is raised to substantially the same height as the cylindrical bed. The embroidery method is the same as the conventional one, and the description is omitted.
[0019]
Next, embroidery on the tubular work cloth W such as a sewn T-shirt or a sweater is performed in the following order of steps.
1) As shown in FIGS. 1 and 2, the elevating table 11 is lowered to the lowered position.
2) As shown in FIG. 3, a support plate 27 provided with a punch hole 28 and coated with an adhesive 29 on the upper surface is sandwiched between an inner frame 23 and an outer frame 24 of the embroidery frame 22 by sandwiching the peripheral edge portion between them. The embroidery frame 22 is stretched. The formation of the hole 28 and the application of the adhesive 29 may be performed before or after the support plate 27 is stretched on the embroidery frame 22.
3) As shown in FIGS. 2 and 4, an embroidery frame 22 having attachment tools 25 attached to the front and rear sides is placed inside a cylindrical work cloth W having a cylindrical opening at the front and rear ends. The processing portion Wa is positioned above the punch hole 28, the processing peripheral portion Wb of the cylindrical work cloth W is attached to the support plate 27 with an adhesive 29, and the remaining portion Wc of the cylindrical work cloth W is placed inside the embroidery frame 22. It is suspended from the embroidery frame 22 without being sandwiched between the frame 23 and the outer frame 24 .
[0020]
4) In a state where the cylindrical bed 7 extending in the front-rear direction is inserted into the cylindrical work cloth W and is positioned directly below the processing portion Wa, the embroidery frame 22 is attached to the drive frame 15 by the mounting tool 25 on the front and rear sides. Install.
5) While moving the embroidery frame 22 back and forth and left and right by the drive frame 15, the embroidery stitch is formed in the processing portion Wa by the cooperation of the needle 6 provided on the embroidery head 5 and the shuttle 8 built in the cylindrical bed 7. .
6) After embroidery, the embroidery frame 22 may be removed from the drive frame 15 and the processed portion Wa may be peeled off from the adhesive 29 of the support plate 27. The adhesive 29 does not remain in the processed portion Wa and can be used repeatedly for the next cylindrical work cloth.
[0021]
Thus, in the present embroidery method, the cylindrical work cloth W is attached to the embroidery frame 22 simply by being attached to the support plate 27 with the adhesive 29 and is not sandwiched as in the conventional case. There are no traces left behind by the embroidery frame 22.
When the embroidery frame 22 is moved back and forth and left and right by the drive frame 15, the left and right end portions 15 a and 15 a extended from the front side of the drive frame 15 are always placed on the upper surfaces of the pair of fixed table extensions 12 and 12. Therefore, the embroidery frame 22 is prevented from drooping due to the weight of the cylindrical work cloth W. For this reason, the tight contact between the tubular work cloth W and the tubular bed 7 is prevented, and there is no possibility that the tubular work cloth W is loosened or the embroidery stitch is damaged.
When the remaining portion Wc of the tubular work cloth W is placed on the upper surface of the lowered lift table 11, the lift table 11 bears a part of the load of the tubular work cloth W, and the embroidery frame Since the force which pulls down 22 is reduced, it is further more preferable.
[0022]
Next, FIGS. 5 and 6 show the multi-head embroidery machine 31 of the second embodiment and the embroidery method of the cylindrical work cloth according to the second embodiment, which are different from the first embodiment only in the following points, and others are the first embodiment. It is common with the form. Accordingly, common parts are denoted by the same reference numerals as in the first embodiment in the same figure, and repeated description is avoided.
[0023]
(1) Four embroidery heads 5 and four cylindrical beds 7 are provided, and accordingly, both tables 10 and 11 are formed long.
(2) The drive frame 32 includes a base frame 33 at the right end, three long frames 34, 35, and 36 extending from the base frame 33 in the left direction, a central long frame 35, and a rear long frame 36. The front long frame 34 and the central long frame 35 are connected by a maximum of four embroidery frames 22 attached therebetween.
(3) The left and right ends 34a, 34a of the front long frame 34 are always supported on the upper surfaces of the pair of fixed table extensions 12, 12.
(4) Four support legs 38 are attached to the long frame 34 on the front side, and the lower end of the lower frame 34 comes into contact with the upper surface of the lift table 11 that has been lowered. A rolling ball 39 is attached to the lower end as a friction reducing member. Has been.
[0024]
Therefore, in the multi-head embroidery sewing machine 31, when the embroidery frame 22 is moved back and forth and left and right by the drive frame 32, the rolling balls 39 of the four support legs 38 come into contact with the lower surface of the lifting table 11 and roll. The front long frame 34 is supported by the support leg 38.
Further, the left and right ends 34a, 34a of the long frame 34 are always supported on the upper surfaces of the pair of fixed table extensions 12, 12. Therefore, although the total weight of the moving part is considerably heavy due to the horizontally long drive frame 32, the four embroidery frames 22, and the cylindrical work cloth W, it is possible to prevent the embroidery frame 22 from drooping due to its weight. Of course, the same effect as the first embodiment can be obtained.
[0025]
In addition, the present invention is not limited to the above-described embodiment. For example, as follows, the present invention can be appropriately modified and embodied without departing from the spirit of the present invention.
(1) The embroidery frame is a single frame, and a support plate is stretched on it.
(2) In the second embodiment, the left and right end portions 34a, 34a of the long frame 34 may not be placed on the upper surfaces of the fixed table extension portions 12, 12, and the long frame 34 may be supported only by the support legs 38. .
[0026]
【The invention's effect】
As described above in detail, according to the tubular work cloth embroidery method of the present invention, it is possible to prevent the tubular work cloth from being pinched by the embroidery frame.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a single-head embroidery sewing machine according to a first embodiment of the present invention.
FIG. 2 is a partial perspective view when an embroidery frame with a cylindrical work cloth attached is attached to a drive frame of the single-head embroidery sewing machine.
FIG. 3 is a cross-sectional view showing an embroidery frame before attaching a cylindrical work cloth.
FIG. 4 is a front view showing an embroidery frame after a cylindrical work cloth is attached.
FIG. 5 is a perspective view showing a multi-head embroidery sewing machine according to a second embodiment.
FIG. 6 is a partial perspective view when an embroidery frame with a cylindrical work cloth attached is attached to a drive frame of the multi-head embroidery sewing machine.
FIG. 7 is a plan view of a conventional multi-head embroidery sewing machine.
FIG. 8 is a front view of the multi-head embroidery sewing machine.
FIG. 9 is a partial plan view when an embroidery frame sandwiched with a cylindrical work cloth is attached to a drive frame of the single-head embroidery sewing machine.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Single head embroidery sewing machine 7 Cylindrical bed 10 Fixed table 11 Lifting table 12 Fixed table extension part 13 Notch part 15 Drive frame 15a Left and right both ends 16 Felt board 22 Embroidery frame 27 Support board 28 Punch hole 29 Adhesive 31 Multi-head embroidery machine 32 Drive frame 34 Long frame 34a Left and right end portions 38 Support legs 39 Rolling balls W Cylindrical work cloth Wa Work part Wb Work peripheral part Wc Remaining part

Claims (1)

A support plate (27) provided with a punch hole (28) and coated with an adhesive (29) on the upper surface is provided with a peripheral edge between the inner frame (23) and the outer frame (24) of the embroidery frame (22). Stretching the embroidery frame (22) by pinching ;
The embroidery frame (22) having attachments (25) attached to the front and rear sides is placed inside a cylindrical work cloth (W) having a cylindrical opening at the front and rear ends, and a processed portion of the tubular work cloth (W) ( Wa) is positioned above the punched hole, the processing peripheral portion (Wb) of the cylindrical work cloth is attached to the support plate (27) with the adhesive (29), and the remaining portion of the cylindrical work cloth (W) (Wc) is suspended from the embroidery frame (22) without being sandwiched between the inner frame (23) and the outer frame (24) of the embroidery frame (22);
The embroidery frame (22) is placed in a state in which a cylindrical bed (7) extending in the front-rear direction of the embroidery sewing machine enters the cylindrical work cloth (W) and is positioned directly below the processed portion (Wa). Attaching to the drive frame (15, 32) of the embroidery sewing machine by means of the front and rear attachments (25);
Forming the embroidery stitch on the processing portion (Wa) of the cylindrical work cloth (W) while moving the embroidery frame (22) back and forth and left and right by the drive frame (15, 32). How to embroider the cloth.

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