JP3129914B2 - Spare button sewing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for sewing spare buttons, and more particularly to an apparatus for sewing buttons on a double-fold tape.

[0002]

2. Description of the Related Art When a spare button is prepared by sewing a button on a two-fold tape, an operation as shown in FIG. 10 is performed.

[0003]

The manual operation is inefficient because the cutting of the tape and the sewing of the button are independent steps, and requires skill. SUMMARY OF THE INVENTION An object of the present invention is to provide a sewing machine for a spare button which eliminates these disadvantages by making it unmanned.

[0004]

SUMMARY OF THE INVENTION A spare button sewing apparatus according to the present invention has a frame and a guide pole. The frame supports a reel and a lifting cylinder. The guide pole has a sewing machine mounting jig at the bottom,
Further, the frame is pivotally supported at a fixed position.

The reel has a long tape wound thereon and is rotatable about a horizontal axis. The lifting cylinder supports a bending cylinder and a rotary cylinder. The bending cylinder is mounted horizontally on the lifting cylinder, and a bending plate is supported by a movable plate of the bending cylinder so as to be able to advance and retreat across the dripping portion of the tape.

The rotary cylinder is mounted vertically with respect to the elevating cylinder. The rotary cylinder is supported horizontally by an arm extending cylinder so that it can swing between a tape position and a button-facing position. Supports cylinder.

The cutting and holding cylinder has a holding body mounted horizontally on the arm, and the holding body includes a pair of elements above and below an advancing / retreating path of the bent plate and sandwiching the drooping portion. The upper and lower pairs of the elements are supported by the relative movable part and the relative fixed part of the gripping cylinder, respectively, and are separately provided on the upper surface of the pair of elements on the upper side of the gripper. A cutting blade and a receiving blade are arranged at a position where the cooperation is completed at the pressure contact position of the pair of elements on the upper side.

The gripping cylinder is mounted horizontally on the cutting and gripping cylinder and has a fixed surface and a movable surface for gripping the drooping portion.

While holding the arm at the tape position, the elevating cylinder is moved up and down to grip, pull out, and loosen the tapping portion of the tape, bending the tapping portion with the bent plate, and returning the bent plate. Cutting the tape with the cutting blade and the receiving blade, gripping the bent piece between the elements, swinging the arm to the button facing position, extending the arm and sending the bent piece to the button sewing position, When the button is sewn to the bent piece by the sewing machine, the arm is contracted and returned to the button facing position, the arm is swung back to the tape position, and the elevating cylinder is operated again to receive the supply of the tape. It has become.

A braking member is wound around the horizontal shaft of the reel. The cutting edges of the cutting blade and the receiving blade protrude from one element toward the other element. The frame is provided with a guide for guiding the dripping portion of the tape to a gripping position by the gripping cylinder.

[0011]

The reel-shaped tape is mounted on a frame, and the frame is set on the sewing machine via a sewing machine mounting jig. Set the required number of sewn spare buttons on the counter and start the machine.

First, the lifting cylinder rises from a position halfway through the entire stroke, and the gripping cylinder grips the tape outlet. At this point, the elevating cylinder descends, pulls out the tape from the reel, and immediately rises to a position halfway through the entire stroke to loosen the opening portion. The bending cylinder is actuated to move the bending plate and to bend and tension the lead portion. The bending cylinder is returned slightly, and the cut-out portion and the receiving blade are cut to form a bent piece, and the bent piece is gripped by the gripping body.

Here, the rotary cylinder rotates, and the arm extension cylinder swings to the button facing position. Here, the arm is extended and the bent piece is sent to the button sewing position of the sewing machine. A button is fed from the normal button supply mechanism onto the bent piece, and the sewing machine starts to sew the button to the bent piece.

When sewing is completed, the arm is retracted to return to the button-facing position, the arm extension cylinder is rocked to return to the tape position, and each associated cylinder is returned to the original position. When the elevating cylinder is raised again, the gripping cylinder moves to a position where it grips the exit portion, and is ready to receive tape supply.

When the braking member is wound around the horizontal shaft of the reel, when the gripping cylinder descends and pulls out the tape, the reel rotates by inertia and prevents the extra tape from being fed out. When the cutting edge and the cutting edge of the receiving blade are arranged so as to protrude from the one element toward the other element in the shape of a letter C, the lead-out portion is completely cut and then the bent piece is gripped. Do not forcibly cut the opening part.

If the frame is provided with a guide for guiding the dripping portion of the tape to the gripping position by the gripping cylinder,
Prevents the outlet from fluttering due to the airflow caused by air conditioning,
The spout always points at the gripping position.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS 1 is a frame and 2 is a guide pole. The frame 1 supports a reel 3 and a lifting cylinder 4.
The guide pole 2 is provided with a sewing machine mounting jig 5 at a lower portion, and supports the frame 1 so as to be pivotable at a fixed position so that the frame 1 can be removed from a working position. The reel 3 is wound with a long tape T and is rotatable around a horizontal axis 6.

The lifting cylinder 4 supports a bending cylinder 7 on a movable portion 4 'by a support frame 7' and a rotary cylinder 8 on an arm plate 8 '. The bending cylinder 7 is horizontal to the lifting cylinder 4 and the bending plate 9
There has been supported by the movable plate 10 of the folding cylinder 7 retractably across the mouth drooping portion T ₁ of the tape T.

The rotary cylinder 8 is attached with respect to vertically lift cylinder 4, and swingable between tape position P ₁ and button facing position P ₂ the arm extension cylinder 11 horizontally supported. The arm 12 of the arm extension cylinder 11 supports a cutting and holding cylinder 13 and a holding cylinder 14 at the tip.

The cutting and holding cylinder 13 is mounted horizontally on the arm 12 and has a holding body 15. The gripping body 15 is located above and below the path of the bent plate 9 and at the drooping portion T.
_A pair of elements 16 and 17, 18 and 19 are provided opposite each other with ₁ interposed therebetween, and a pair of upper and lower elements 16 and 18, 17 and 19 are provided.
Are supported by the movable part 20 and the fixed part 21 of the cutting and holding cylinder 13 respectively. Then, the cutting blade 22 and the receiving blade 23 are placed on the upper surfaces of the pair of elements 16 and 17 on the upper side of the gripping body 15 separately and at the position where the cooperation is completed immediately before the pressure contact between the pair of upper elements 16 and 17. Is arranged.

In the illustrated example, a block 71 is attached to the tip of the arm 12, a base of a top plate 72 is attached to the upper surface of the block, and a cutting and holding cylinder 13 is attached to the front of the block 71. A pair of upper and lower L-shaped plates 73 and 74 constituting one element 16 and 18 of the gripping body 15 are attached to the movable part 20 of the cutting and gripping cylinder 13, and upper and lower parts forming the other elements 17 and 19 on the top plate 72. A pair of receiving plates 75 and 76 are mounted.

The holding cylinder 14 is a cutting and holding cylinder 1
Horizontally mounted to 3, and a fixing surface 24 and the movable surface 25 that grips the mouth drooping portion T _1. In the illustrated example, the fixing part 26 of the holding cylinder 14 is attached to the fixing part 21 of the cutting and holding cylinder 13 via a support plate 77. And
The movable portion 27 of the gripping cylinder 14, the projecting laterally to provide a movable surface 25 for gripping the mouth drooping portion T _1, the movable plate 28 is attached, the support plate 77 is a stationary plate extending laterally , Provides a fixed surface 24 that cooperates with a movable surface 25 thereof relative to a movable plate 28.

[0023] In the above structure, non-startup is arm extension cylinder 11 the tape position P _1, the lifting cylinder 4 is stationary in the middle position of the entire process. When you start device first lifting cylinder 4 is increased, the tap portions T ₁ of the tape T enters between the fixing surface 24 and the movable surface 25 of the gripping cylinder 14, the gripping cylinder 14 to sandwich the lead section T _1.

At this point, the lifting cylinder 4 descends and the tape T
The drawer from the reel 3, slackens the lead sections T ₁ rises immediately to the middle position of the entire process. Move the folding plate 9 operates folding cylinders 7, tensioning the lead sections T ₁ bent to. Little return the folding cylinder 7, by cutting the lead sections T ₁ to form a bent piece T ₂ in the cutting blade 22 and receiving blades 23, immediately grasp the bent piece T ₂ by the gripping member 15.

[0025] Here, the rotary cylinder 8 rotates to swing the arm extension cylinder 11 in the button facing position P _2. Here, the arm 12 is extended and the bent piece T ₂ is moved to the sewing machine M.
Fed to the button sewing position P _3. The bent piece T ₂ button normal buttonhole supply mechanism on B is fed, the sewing machine M is sewn a button B in bent piece T ₂ started.

The sewing is returned to the button facing position P ₂ by shortening the arm 12 when finished, returning to the tape position P ₁ by swinging the arm extension cylinder 11 and allowed Fukusa each associated cylinder to the original position . If caused to raise the lifting cylinder 4 gripping cylinder 14 is moved to a position to grip the yarn end finding portion T _1, a state which is received a supply of tape again.

The braking member 31 is wound around the horizontal shaft 6 of the reel 3. In this way, when the gripping cylinder 14 descends and pulls out the tape T, the reel 3 rotates by inertia and prevents the extra tape from being fed out.

The cutting edges of the cutting blade 22 and the receiving blade 23 are arranged so as to protrude from one element 16 or 17 in the direction of the other element toward each other. In this way, since the tap portions T ₁ is gripping the bent piece T ₂ from being completely cut, never forcibly cut tearing the lead section T _1.

The guide 32 for guiding the mouth drooping portion T ₁ of the tape T to the holding position by the gripping cylinder 14 is provided on the frame 1. In this way, it prevents tap portions T ₁ by wind flow by the air conditioner or the like flapping of, tap portions T ₁ is always directed to the gripping position.

[0030]

According to the present invention, it is possible to mechanically perform a series of operations such as bending, cutting, and button sewing of a tape, thereby achieving labor saving, improvement of work efficiency, uniformity of sewing, and the like. be able to. According to the second aspect, the reel does not rotate by inertia when the tape is pulled out due to the lowering of the gripping cylinder, and therefore, it is possible to prevent extra tape from being fed.

According to the third aspect, the cutting and holding cylinder grips the bent piece after the cutout is completely cut, so that the cutout and gripping cylinder is not forcibly cut off. Claim 4
According to the above, the opening portion can be prevented from fluttering due to the movement of air, and the opening portion can always be directed to the grip position.

[0032]

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing a specific example of a spare button sewing apparatus according to the present invention.

FIG. 2 is a schematic perspective view of a state in which an arm extension cylinder is swung and extended.

FIG. 3 is a side view of the same device, showing a state where an arm is at a tape position.

FIG. 4 is a plan view of FIG. 3;

FIG. 5 is a side view of a state in which the tape is to be gripped in an explanatory view of the tape bending operation.

FIG. 6 is a side view of a state where the tape is gripped.

FIG. 7 is a side view showing a state in which the tape is bent.

FIG. 8 is a side view of a state where the tape is cut and gripped.

FIG. 9 is a side view showing a state in which the tape bending plate has escaped from the tape.

FIG. 10 is a flowchart of a conventional spare button configuration procedure.

[Explanation of symbols]

Reference Signs List 1 frame 2 guide pole 3 reel 4 lifting cylinder 5 sewing machine mounting jig 6 horizontal axis 7 bending cylinder B sewing machine 8 rotary cylinder 9 bending plate 11 arm extension cylinder 12 arm 13 cutting and holding cylinder 14 holding cylinder 15 holding body 16 element 17 element 18 element 19 element 20 movable part 21 fixed part T tape T ₁ outlet part T ₂ bent piece P ₁ tape position P ₂ button facing position P ₃ button sewing position 22 cutting blade 23 receiving blade 24 fixing surface 25 Movable surface 26 Fixed part 27 Movable part 28 Movable plate 31 Braking member 32 Guide

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Atsuo Tsujihara 13-1 Minami Suwawaki Minami Sakura, Kakuta City, Miyagi Prefecture Inside Renown Kakuda Plant Co., Ltd. -1 Inside the Renown Kakuda Plant (56) References JP-A-2-200865 (JP, A) JP-A-62-78023 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB Name) D05B 3/14

Claims (4)

(57) [Claims] 1. A frame (1) having a guide pole (2), the frame (1) supports a reel (3) and a lifting cylinder (4), and the guide pole (2) is provided at a lower portion of a sewing machine. The reel (3) is provided with a mounting jig (5) and supports the frame (1) in a freely rotatable manner at a fixed position.
The lifting cylinder (4) supports a bending cylinder (7) and a rotary cylinder (8), and the bending cylinder (7) is horizontally mounted on the lifting cylinder (4). Attached, the bending plate (9) is supported by the movable plate (10) of the bending cylinder (7) so as to be able to advance and retreat across the dripping portion (T ₁ ) of the tape, and the rotary cylinder (8) is mounted with respect to vertically elevating cylinder (4), the tape position an arm stretching cylinder (11) horizontally supported (P ₁₎ and the button facing position (P ₂₎ between a swingably, the arm (12 ) Is a cutting and holding cylinder (1
3) and a holding cylinder (14), the cutting and holding cylinder (13) is mounted horizontally on the arm (12) and has a holding body (15), and the holding body (15) is Bent plate
The pair of elements (16, 17) are provided above and below the advancing / retreating path of (9) and sandwiching the drooping portion (T ₁ ) to form a pair of upper and lower elements (16, 18:17). , 19) with the cutting and holding cylinder (1
3) supported on the movable part (20) and the fixed part (21), and separately on the upper surface of the pair of elements (16, 17) on the upper side of the gripper (15) and on the upper side of the pair of elements. The cutting blade (22) and the receiving blade (23) are arranged at a position where the cooperation is completed at the pressure contact position of the elements (16, 17), and the gripping cylinder (14) is horizontal to the cutting and gripping cylinder (13). And a movable surface (25) for holding the dripping portion (T ₁ ) .The arm (12) is maintained at the tape position (P ₁ ), and the lifting cylinder (4 ) by lifting the grip of the lead-out portion of the tape (T _1), the drawer, without the slack, the bent the mouth out portion (T ₁₎ in該折bending plate (9),該折bending plate (9) Return the cutting blade (24) and receiving blade
The tape (T) is cut by (25) and the bent piece (T ₂ ) is cut into the element (1).
8, 19: 20, 21), the arm (12) is swung to the button facing position (P ₂ ), the arm (12) is extended, and the bent piece (T ₂ ) is When the button (B) is sewn to the bent piece (T ₂ ) with the sewing machine (M), the arm (12) is contracted and the button facing position (P ₂ ) is sent to the button sewing position (P ₃ ). And the arm (12) is swung back to the tape (T) position, and the lifting cylinder (4) is returned again.
A spare button sewing apparatus, wherein the tape (T) is supplied by operating the sewing machine. 2. A braking member (3) is attached to the horizontal shaft (6) of the reel (3).
The sewing apparatus for a spare button according to claim 1, wherein 1) is wound. 3. The cutting edge of the cutting blade (22) and the cutting edge of the receiving blade (23) are arranged so as to protrude from the one element (16 and 17) in the direction of the other element toward each other. A sewing machine for a spare button according to the item. 4. A dripping portion (T) of a tape (T) is attached to the frame (1).
Guide (32) for guiding ₁ ) to the gripping position by the gripping cylinder (14)
The sewing apparatus for a spare button according to claim 1, further comprising: