JPH0532069Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a towel hem sewing machine that attaches and sews towels one by one.

(Prior art) Conventionally, a towel hem sewing machine is equipped with a towel gripping mechanism and a cutting mechanism at the longitudinal end of a rectangular base frame, a trifold mechanism at the longitudinal center of the base frame, and a towel hem sewing machine. It was equipped with a sewing mechanism slightly closer to the tip from the center in the longitudinal direction, and a towel binding mechanism at the tip in the longitudinal direction of the base frame, and the mainstream was to cut continuous fabric as appropriate and sew the towel hem. .

(Problem to be solved by the invention) Conventionally, as described above, one end of the towel was simply clamped, and then the other end of the towel was clamped and cut. There has been a problem that the towel hem tends to become loose, and there is a risk of unevenness when sewing the towel hem.

In view of these drawbacks, the present invention aims to provide a towel hem sewing machine that can reliably sew the towel hem without causing loosening of the towel edges due to the material of the towel.

(Means for Solving the Problems) The present invention provides needles that can be raised and lowered at three locations on one side of the base end in the longitudinal direction of a rectangular parallelepiped base frame in a straight line along the longitudinal direction of the base frame. The needles on both sides are movable back and forth along the longitudinal direction of the base frame, and a clamp piece having an air nozzle for blowing air diagonally downward is provided above the needles and slightly closer to the other side of the base frame so as to be movable up and down. A towel grasping mechanism is provided on the other side of the base end in the longitudinal direction of the base frame, and is movable toward one side of the base frame so as to move forward and backward. A towel straightening mechanism is provided with a freely movable rod body, and a large number of towel tension pieces are arranged parallel to the width direction of the base frame in an F-shape at the lower end of the rod body via leaf springs along the longitudinal direction of the base frame. A three-fold mechanism is provided in the longitudinal center of the base frame, and a towel transport mechanism is provided to transport the towel from the base end in the longitudinal direction of the base frame to the center and tip. A sewing mechanism with a sewing machine is provided slightly near the tip, and a towel binding mechanism is provided at the longitudinal tip of the base frame.

(effect) The operation of the present invention will be explained.

When using the towel hem sewing machine according to the present invention,
First, as shown in Figure 4A, insert the ear part of one side of the towel onto the needle at the base end of the base frame. At this time, since the needles on both sides provided in a straight line move back and forth along the longitudinal direction of the base frame, tension is applied to the edges of the towel.

Next, as shown in FIGS. 4B and 4C, the tab on one side of the towel is pulled and supported on the other side of the base frame by the towel gripping mechanism on the other side of the base end of the base frame.

Next, as shown in FIG. 4C, the ear on the other side of the towel is inserted into the needle on one side of the proximal end of the base frame. At this time, tension is applied to the edges of the towel in the same manner as described above.

Next, as shown in FIG. 4D, tension is applied to the center of the towel by the towel straightening mechanism at the base end of the base frame.

Next, the towel is conveyed by the towel conveyance mechanism to the trifold mechanism at the center of the base frame.

Next, the edges on both sides of the towel are folded into three by a three-fold mechanism.

Next, the towel is conveyed by the towel conveyance mechanism from the center of the base frame to the sewing mechanism slightly closer to the tip of the base frame.

Next, the three folded ears on both sides of the towel are sewn by a sewing mechanism.

Next, the towel is transported by the towel transport mechanism to the towel binding mechanism at the tip of the base frame.

Next, a predetermined number of hem-stitched towels are bound by this towel binding mechanism, and the bundled towels are dropped at the bottom.

(Example) Embodiments of the present invention will be described based on the drawings.

As shown in FIGS. 1 to 4, a towel hem sewing machine 1 according to the present invention has the following configuration.

On one side of the base end 3 in the longitudinal direction of the rectangular base frame 2, needles 4 that can be raised and lowered in the vertical direction are provided at three locations in a straight line along the longitudinal direction of the base frame, and the needles 4 on both sides are attached to the base. The frame can be moved forward and backward along the longitudinal direction of the frame. In this embodiment, the mechanism for raising and lowering the needle 4 and the mechanism for advancing and retracting the needle 4 are both based on an air cylinder (not shown).

Above the needle 4 and slightly closer to the other side of the base frame 2, a clamp piece 7 having an air nozzle 6 with a large number of small holes 5 for blowing air diagonally downward is provided on the base frame 2 so as to be able to move up and down in the vertical direction. . The elevating mechanism for the clamp piece 7 in this embodiment is also based on an air cylinder (not shown).

A towel gripping mechanism 8 is provided on the other side of the base end in the longitudinal direction of the base frame 2 so as to be clampable and movable forward and backward toward the side of the base frame 2 where the needles 4 are provided. The clamping mechanism of the towel gripping mechanism 8 of this embodiment is also based on the air cylinder 9.

A rod 10 that can be raised and lowered in the vertical direction is provided at the center in the width direction of the base end 3 in the longitudinal direction of the base frame 2, and a leaf spring is attached to the lower end of the rod 10 in an F-shape parallel to the width direction of the base frame 2. A large number of towel tension pieces 12 are attached to the base frame 2 through 11.
A towel straightening mechanism 13 is provided along the longitudinal direction of the towel.

A trifold mechanism 15 is provided at the longitudinal center 14 of the base frame 2.
is provided. The trifold mechanism 15 of this embodiment is composed of a plurality of clamp pieces (not shown).

A towel conveying mechanism 1 that conveys a towel T from the base end 3 in the longitudinal direction of the base frame 2 to the center 14 and the tip 16
7 is provided. Towel transport mechanism 17 of this embodiment
This is due to a pair of clamp pieces 17a that are movable along the longitudinal direction of the base frame 2.

From the center 14 in the longitudinal direction of the base frame 2 to the tip 16
A sewing mechanism 19 having a sewing machine 18 is provided nearby.

A towel binding mechanism 20 is provided at the longitudinal end 16 of the base frame 2. Towel binding mechanism 2 of this embodiment
0, a predetermined number of towels are stacked, tabs (not shown) are attached, and the towels are dropped below the base frame 2.

In addition, in the figure, 21 is a clamp arm, 22 is a needle,
23 is a tab attachment plate, and 24 is a clamp plate.

Further, although the needles 4 that can be raised and lowered are provided at three locations, four or more needles 4 may be provided as long as both sides can move forward and backward.

(Effects of the invention) According to the towel hem sewing machine according to the invention, three needles that can move up and down are provided on one side of the base end in the longitudinal direction of the base frame.
provided in a straight line along the longitudinal direction of the base frame,
The needles on both sides are movable back and forth along the longitudinal direction of the base frame, and a clamp piece having an air nozzle for blowing air diagonally downward is provided above the needles and slightly closer to the other side of the base frame so as to be movable up and down. A towel gripping mechanism is provided on the other side of the base end in the longitudinal direction of the base frame and can be freely moved forward and backward toward one side of the base frame, and a towel gripping mechanism is provided on the other side of the base end in the longitudinal direction of the base frame. A towel straightener is provided with a rod that can be raised and lowered freely, and a large number of towel tension pieces are arranged parallel to the width direction of the base frame at the lower end of the rod in an F-shape along the longitudinal direction of the base frame via leaf springs. Because the towel is equipped with a mechanism, it is possible to apply tension to the edges on both sides of the towel when it is attached, so that when the towel is conveyed to the sewing mechanism and sewn, the edges on both sides of the towel are loosened. There is no need to sew the product as it is, the finish is very good, and sewing defects can be minimized.

[Brief explanation of the drawing]

Fig. 1 is a front perspective view of the towel hem sewing machine according to the present invention, Fig. 2 is a rear perspective view of the towel hem sewing machine, Fig. 3 is an enlarged perspective view of the main parts in use, and Figs. FIG. 3 is a schematic front view illustrating the operation. Explanation of symbols of main parts, 1... Towel hem sewing machine, 2... Base frame, 3... Base end, 4... Needle, 6...
Air nozzle, 7... Clamp piece, 8... Towel gripping mechanism, 10... Rod body, 11... Leaf spring, 1
2... Towel tension piece, 13... Towel correction mechanism,
14...Center, 15...Trifold mechanism, 16...Tip, 17...Towel conveyance mechanism, 18...Sewing machine,
19... Sewing mechanism, 20... Towel binding mechanism, T
……towel.

Claims (1)

[Scope of utility model registration request] Three needles 4 that can be raised and lowered are provided on one side of the base end 3 in the longitudinal direction of the rectangular base frame 2 in a straight line along the longitudinal direction of the base frame, and the needles 4 on both sides are attached to the base frame 2. A clamp piece 7 that is movable in the longitudinal direction and has an air nozzle 6 that blows air diagonally downward, above the needle 4 and slightly toward the other side of the base frame.
is provided on the base frame 2 so as to be movable up and down, and a towel gripping mechanism 8 is provided on the other side of the base end 3 in the longitudinal direction of the base frame 2 so as to be freely clampable, and on one side of the base frame 2 so as to be movable forward and backward. A rod 10 that can be raised and lowered is provided at the widthwise center of the base end 3 in the longitudinal direction of the base frame 2, and a leaf spring 11 is attached to the lower end of the rod 10 in an F-shape parallel to the width direction of the base frame 2.
A towel straightening mechanism 13 is provided in which a large number of towel tension pieces 12 are arranged along the longitudinal direction of the base frame 2, and a three-folding mechanism 1 is provided at the longitudinal center 14 of the base frame 2.
5, and a towel conveying mechanism 17 for conveying the towel T from the base end 3 in the longitudinal direction of the base frame 2 to the center 14 and the tip 16. A sewing mechanism 19 having a sewing mechanism 18 is provided, and a longitudinal end 1 of the base frame 2 is provided.
6 is provided with a towel binding mechanism 20.