JP2004016548A - Cutter for cutting belt loop material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cutter preventing scraps generated when cutting a belt loop material in V shape from scattering around. <P>SOLUTION: The cutter 4 is driven by rotating a fixed blade 20 and a movable blade 21 by a rotation drive mechanism 22, and cuts the belt loop material 6 in V shape by cooperation of the fixed blade 20 and the movable blade 21. As scattering preventing members 43, 44, pushing the belt loop material 6 from upside when cutting, are arranged so as not to make the scraps 6a, 6b generated when cutting the belt loop material in V shape scatter, the scraps 6a, 6b are prevented from scattering around, and the working circumstance is kept in good state. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a belt loop cutter, and more particularly, to a cutter for cutting a belt loop into a V-shape so that chips generated when the belt loop is cut into a V-shape can be prevented from scattering around. .
[0002]
2. Description of the Related Art Conventionally, when a belt loop for passing a belt through body cloth such as trousers is provided, a belt loop piece for forming a belt loop is supplied to a sewing apparatus such as a two-needle sewing machine, and the sewing apparatus uses the belt loop. A belt loop piece is sewn to the body fabric. For this purpose, a belt loop material supply device, a cutter device, and a belt loop piece supply device are provided adjacent to the sewing device. The continuous belt-shaped belt loop material is supplied to the cutter device by the belt loop material supply device, and the belt loop material is cut at predetermined lengths by the cutter device. The belt loop piece formed in this way is supplied to the sewing apparatus with both ends bent downward by the belt loop piece supply device.
[0003]
Here, the cutter device includes a fixed blade and a movable blade that cooperatively cut the belt loop material, and a movable blade driving unit such as an air cylinder that drives the movable blade to a cutting position of the belt loop material, Each time a belt loop material of a predetermined length is supplied from the belt loop material supply device, the movable blade is driven by the movable blade driving means to cut the belt loop material by the fixed blade and the movable blade.
[0004]
By the way, the belt loop material may be cut linearly by one cutting operation. However, when the both ends of the belt loop piece are bent by the belt loop piece supply device, even if the bending accuracy is poor, the folded portion may be cut. As shown in FIG. 8 of the embodiment, the blade support member 34 on which the fixed blade and the movable blade are mounted is rotated around a vertical axis by a rotation driving means having an air cylinder or the like so as not to protrude from the upper belt loop. In many cases, the belt loop material 6 is cut into a V shape by two cutting operations.
[0005]
However, when the belt loop material is cut into a V-shape, two triangular chips as shown by oblique lines in FIG. 8 are usually generated during the second cutting operation. However, due to the kinetic energy of the movable blade at the time of cutting, these chips often scatter around, and when the sewing operation of the belt loop piece is performed continuously for a certain period of time, a large amount of chips is scattered around the sewing device. The work environment was degraded, and frequent cleaning was necessary.
An object of the present invention is to prevent chips generated when a belt loop material is cut into a V shape from scattering around.
[0006]
According to a first aspect of the present invention, there is provided a cutter apparatus for cutting a belt loop material, wherein the movable blade is used to cut the belt loop material transferred by the transfer means into a V shape. In a cutter device for cutting a belt loop material provided with a movable blade driving means for driving to a cutting position of the material, chips generated when the belt loop material is cut into a V-shape are not scattered in the vicinity of the movable blade. And a scattering prevention member for pressing the belt loop material from above at the time of cutting.
[0007]
The belt loop material is transferred to the cutter device while being substantially horizontally extended by transfer means such as a feed roller, and the transferred belt loop material is cut by the cutter device at predetermined lengths to form belt loop pieces. You. Further, the belt loop piece is supplied to a sewing device and sewn to a body cloth such as pants to form a belt loop through which a belt passes.
Here, in the cutter device, after the belt loop material of a predetermined length passes through the movable blade, the movable blade is driven to a cutting position of the belt loop material by a movable blade driving means such as an air cylinder, and the belt loop material is removed. Be cut off.
[0008]
Here, when the belt loop material is cut into a V-shape, two triangular chips are usually generated. These chips are scattered around by the kinetic energy of the movable blade at the time of cutting. It often happens. However, since the scattering prevention member provided in the vicinity of the movable blade presses the belt loop material from above at the time of cutting so that the chips are not scattered, the chips do not scatter around the sewing device.
[0009]
A cutter device for cutting a belt loop material according to a second aspect is the invention according to the first aspect, wherein the scattering prevention member is provided on a movable blade. Therefore, at the time of the cutting operation, the scattering prevention member moves together with the movable blade driven by the movable blade driving means, and at the moment when the movable blade cuts the belt loop material, the scattering prevention member presses the belt loop material for the first time. With such a configuration, when the belt loop material passes through the movable blade, the belt loop material does not interfere with the scattering prevention member. Further, during the cutting operation, the scattering prevention member is not cut by the movable blade together with the belt loop material.
[0010]
According to a third aspect of the present invention, there is provided a cutter device for cutting a belt loop material according to the second aspect of the present invention, wherein the scattering prevention members are provided on both surfaces of the movable blade. When the belt loop material is cut into a V-shape, two chips are generated on both sides of the movable blade. However, by providing the scattering prevention members on both surfaces of the movable blade, both of the chips can be prevented from being scattered. .
[0011]
According to a fourth aspect of the present invention, in the invention of the first to third aspects, the scattering prevention member has a brush-shaped pressing portion made of a plurality of elastically deformable wires. It is. Therefore, at the time of cutting the belt loop material, the brush-like holding portion elastically deforms and presses the belt loop material from above, so that chips generated during the cutting operation can be prevented from scattering around.
[0012]
According to a fifth aspect of the present invention, in the invention of the first to third aspects, the scatter prevention member has a resiliently deformable mesh-shaped pressing portion. Therefore, at the time of cutting the belt loop material, the mesh-shaped pressing portion presses the belt loop material from above while being elastically deformed, so that chips generated during the cutting operation can be prevented from scattering around.
[0013]
Embodiments of the present invention will be described. The present embodiment is an example in which the present invention is applied to a belt loop material cutting cutter device for cutting a belt loop material in order to form a belt loop piece sewn on a body cloth such as pants with a two-needle sewing machine. . The following description is based on the assumption that the transfer direction of the belt loop material (front side in FIG. 1) is forward.
[0014]
As shown in FIGS. 1 and 2, a two-needle sewing machine 2 for sewing a belt loop piece to a body cloth is provided on a table 1, and a belt loop material supply is provided adjacent to the two-needle sewing machine 2. A device 3, a cutter device 4, and a belt loop piece supply device 5 are provided. As shown in FIG. 1, the belt loop material supply device 3 and the cutter device 4 are disposed so as to be inclined to the right, but in FIG. FIG. 3 shows a view from obliquely below.
[0015]
In the present embodiment, the continuous belt-shaped belt loop material 6 is supplied to the front cutter device 4 by the belt loop material supply device 3, and the belt loop material 6 is cut by the cutter device 4 at predetermined intervals. A belt loop piece formed by cutting the belt loop material 6 by the cutter device 4 is supplied from the right to the sewing position PH of the two-needle sewing machine 2 by the belt loop piece supply device 5, and the belt is fed by the two-needle sewing machine 2. The loop pieces are sewn to the body fabric.
[0016]
First, the belt loop material supply device 3 will be briefly described.
As shown in FIG. 2, the belt loop material supply device 3 includes a feed roller 10 (transfer means) for transferring the belt loop material 6 to the cutter device 4, and a drive motor 11 for driving the feed roller 10 to rotate. Have. The belt loop material 6 is fed from a loop material supply source (not shown), and is guided by a guide roller 13 and a guide member 14 (see FIG. 5) on a feed substrate 12 erected on the table 1 while being fed. Is supplied to the cutter device 4 on the front side.
[0017]
Next, the belt loop piece supply device 5 will be described.
As shown in FIG. 1, the belt loop piece supply device 5 is provided on a frame member 15 that is rotatably arranged on the table 1 in a vertical plane. Two air cylinders 16 and 17 for rotating the frame member 15 are connected to the frame member 15. The belt loop piece supply device 3 includes two rods 18 disposed on the frame member 15 so as to be relatively movable in the left-right direction, and an air cylinder (shown in the drawing) that integrally drives these rods 18 in two directions in the left-right direction. ) And two air cylinders 19 for rotating the two rods 18 respectively. At the tip (left end) of the two rods 18, a forked fork-shaped belt loop piece gripping portion 18a is provided, respectively.
[0018]
When the belt loop piece formed by cutting the belt loop material 6 by the cutter device 4 is supplied to the two-needle sewing machine 2 by the belt loop piece supply device 5, as shown in FIG. , The two rods 18 are advanced to the transfer position PU, and the belt loop piece is held by the grip 18a. Next, the gripping portion 18a is rotated by the rotation air cylinder 19 to bend both ends of the belt loop piece downward. In this state, after the frame member 15 is rotated by the air cylinders 16 and 17 to be at the standby position PT, the rod 18 is further advanced to the sewing position PH by an air cylinder (not shown), and the belt loop piece is moved to the sewing position PH. It is supplied to the sewing position PH of the main needle sewing machine 2.
[0019]
Next, the cutter device 4 will be described.
As shown in FIGS. 2 to 11, the cutter device 4 includes a fixed blade 20 and a movable blade 21 that cooperatively cut the belt loop material 6 transferred by the feed roller 10, and a V-shaped belt loop material 6. A rotary drive mechanism 22 that drives the fixed blade 20 and the movable blade 21 to rotate about a substantially vertical axis in order to cut the belt loop material 6, and an air cylinder 23 (a movable blade) that drives the movable blade 21 to the cutting position of the belt loop material 6. Driving means).
[0020]
As shown in FIGS. 2 to 7, the support member 30 that supports the air cylinder 23 is provided with a rotation plate 31 that is relatively horizontally rotatable with respect to the support member 30 via a bearing 32. An upper end of a blade support member 34 that supports the movable blade 21 is attached to a connecting plate 33 that is formed integrally with the rotating plate 31 and extends downward, and the fixed blade 20 is attached to a lower end of the blade support member 34. The mounted fixed blade mounting member 35 is fixed. On the other hand, the movable blade 21 is connected to the lower end of the rod 23a of the air cylinder 23, and the movable blade 21 is supported by guide members 36 and 37 fixed to the left and right ends of the blade support member 34 so as to be movable in the vertical direction. I have. The movable blade 21 is also provided with a loop material support member 38 for supporting the belt loop material 6 transferred forward beyond the fixed blade 20 and the movable blade 21 from below.
[0021]
The rotation drive mechanism 22 includes a rotation plate 31 and a bearing 32, and a rotation air cylinder 39 that rotates the rotation plate 31. A rod 39a of the air cylinder 39 for rotation is connected to the rotation plate 31 via a connecting member 40, and the rotation drive mechanism 22 moves the rod 39a of the air cylinder 39 forward and backward to rotate the rotation plate 31. By rotating the blade support member 31, the blade support member 34 connected to the rotation plate 31 and having the fixed blade 20 and the movable blade 21 mounted thereon is driven to rotate.
[0022]
When the belt device 6 is cut into a V-shape by the cutter device 4, first, the blade support member 34 (the fixed blade 20 and the movable blade 21) is rotated about a substantially vertical axis by the rotation drive mechanism 22. After rotating to the position indicated by the solid line in FIG. 8, the movable blade 21 is driven to the cutting position by the air cylinder 23 to perform the first cutting operation. Next, contrary to the first cutting operation, the blade supporting member 34 is rotated to the position indicated by the dashed line in the direction of the arrow in FIG. 8, and then the second cutting operation is performed in the same manner as the first cutting operation.
[0023]
Here, as shown in FIG. 8, at the time of the second cutting operation, two triangular chips 6 a and 6 b are usually generated before and after the movable blade 21, respectively. , 6b are provided. Wall portions 41a and 41b for preventing chips 6a and 6b from dropping and scattering from the receiving tray 41 are formed at both front and rear ends of the receiving tray 41, respectively.
[0024]
However, as shown in FIG. 1, the receiving tray 41 is formed to be open in the left-right direction so that the rod of the belt loop piece supply device 5 can expand and contract under the cutter device 4 back and forth. . Further, the receiving tray 41 is disposed so as to be inclined forward and downward so that the chips 6a and 6b that have fallen into the receiving tray 41 can be easily discharged. An inclined discharge tray 42 is provided.
[0025]
By the way, the chips 6a and 6b generated at the time of the second cutting operation often scatter to the front and rear sides of the movable blade 21 due to the kinetic energy of the movable blade 21 at the time of cutting without falling as it is. Therefore, on both surfaces of the movable blade 21, two scattering prevention members 43 and 44 for preventing the chips 6a and 6b from scattering are provided, and these scattering prevention members 43 and 44 are integrated with the movable blade 21. It can be moved up and down. As shown in FIG. 7, the scattering prevention member 44 attached to the rear surface of the movable blade 21 is housed in a concave portion 34a formed in the blade supporting member 34 so as to be movable up and down.
[0026]
The front-side scattering prevention member 43 includes a mounting portion 43a having a substantially rectangular shape in a front view and a pressing portion 43b extending downward from the mounting portion 43a, and a brush-shaped pressing portion 43b made of a plurality of elastically deformable wires 43c. And The mounting portion 43a is mounted on the lower end side portion of the movable blade 21 in a state of being inclined so as to be parallel to the blade portion 21a of the movable blade 21. The holding portion 43b is composed of a plurality of (for example, four) wires 43c of equal length made of synthetic resin. However, since the attachment portion 43a is inclined and attached to the movable blade 21 as described above. The plurality of wires 43c of the holding portion 43b and the lower ends of the blade portions 21a are located at substantially the same position.
The rear scattering prevention member 44 also has a mounting portion 43b and a brush-like pressing portion 43b formed of a plurality of wires 43c, and is configured similarly to the front scattering prevention member 43.
[0027]
As shown in FIGS. 9 and 10, when the movable blade 21 is driven downward by the air cylinder 23 and the blade portion 21 a of the movable blade 21 reaches the cutting position, the scatter prevention member 43 on the front side moves the pressing portion 43 b. Since the lower ends of the plurality of wires 43c and the blade portions 21a are substantially at the same position, the lower end of the leftmost wire 43c of the plurality of wires 43c contacts the belt loop material 6. Further, when the movable blade 21 is driven downward and the belt loop material 6 is cut by the blade portion 21a, as shown in FIG. 11, the wire 43c elastically deforms while pressing the belt loop material 6 from above. Bend. This operation is the same for the scattering prevention member on the rear surface of the movable blade 21.
[0028]
Accordingly, since the movable blade 21 cuts the belt loop material 6 in a state where the belt loop material 6 is pressed by the pressing portions 43b and 44b, when the chips 6a and 6b are generated by the second cutting operation, these chips 6a and 6b are cut. Falls into the receiving tray 41 without being scattered around.
In addition, as shown in FIG. 10, on the rear surface of the blade support member 34, in order to prevent the chips 6b on the rear side from being deposited on the upper surface of the fixed blade mounting member 35, as the blade support member 34 rotates, A chip guide member 45 is provided for guiding the chips 6b to drop to the receiving tray 41.
[0029]
Next, the operation of the cutter device 4 will be described.
When the belt loop material 6 is transported by the feed roller 10 of the belt loop material supply device 3 to the cutter device 4 for a predetermined length, first, the rotary driving mechanism 22 moves the blade support member 34 (fixed blade) to the position indicated by the solid line in FIG. 20 and the movable blade 21) are rotated and the first cutting operation is performed. Further, the blade support member 34 is rotationally driven in the direction of the arrow in FIG. 8 to the position of the chain line, and the second cutting operation is performed, so that the belt loop material 6 is cut into a V-shape.
[0030]
Here, during the second cutting operation, two triangular chips 6a and 6b are generated on both sides of the movable blade 21, and there is a possibility that these chips 6a and 6b may be scattered around. However, when cutting the belt loop material 6, the scattering prevention members 43 and 44 provided on both surfaces of the movable blade 21 descend integrally with the movable blade 21, and the pressing portions 43b and 44b of the scattering prevention members 43 and 44 are moved. Since the movable blade 21 cuts the belt loop material 6 in a state of contacting the belt loop material 6 and pressing the same from above, the chips 6a and 6b fall onto the receiving tray 41 without scattering to the surroundings, and the discharge tray 42. Is discharged from
[0031]
According to the cutter device 4 described above, the following effects can be obtained.
1) When the belt loop material 6 is cut, the belt loop material 6 is configured to be pressed from above by the scattering prevention members 43 and 44 so that the chips 6a and 6b generated during the second cutting operation are not scattered around. The chips 6a and 6b are not scattered around the two-needle sewing machine 2, and the working environment can be kept good.
[0032]
2) Since the scattering prevention members 43 and 44 are provided on the movable blade 21, when the belt loop material 6 passes between the fixed blade 20 and the movable blade 21, the scattering prevention members 43 and 44 are moved together with the movable blade 21. It is located at a position higher than the belt loop material 6, and the pressing portions 43b and 44b do not interfere with the belt loop material 6 and do not hinder the passage of the belt loop material 6. Also, since the lower ends of the plurality of wires 43c and 44c of the holding portions 43b and 44b and the lower end of the blade portion 21a are substantially at the same position, the moment the movable blade 21 descends and reaches the cutting position, the wire 43c is formed. , 44c abut against the belt loop material 6, so that a part of the holding portions 43b, 44b is not cut between the fixed blade 20 and the movable blade 21 and cut by the movable blade 21.
[0033]
3) Since the scattering prevention members 43 and 44 are provided on both surfaces of the movable blade 21, when the belt loop material 6 is cut into a V-shape, two chips 6a and 6b generated on both front and rear sides of the movable blade 21 are located around. Scattering can be reliably prevented.
[0034]
Next, modified embodiments in which various modifications are made to the above-described embodiment will be described. However, components having the same configuration as the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted as appropriate.
1] In the vicinity of the movable blade 21, the scattering prevention members 43 and 44 may be attached to a member other than the movable blade 21 such as the blade support member 34.
2] When the amount of scattered chips 6b generated on the rear side of the movable blade 21 is considerably smaller than the amount of chips 6a on the front side, the rear scatter prevention member 44 can be omitted.
[0035]
3] As the scattering prevention member, those having various shapes can be used. For example, as shown in FIG. 12, in the cutter device 4A, a scattering prevention member 51 having an attachment portion 51a and an elastically deformable mesh-like pressing portion 51b is provided via an attachment member 50 provided on the loop material support member 38A. It may be attached to the movable blade 21. Needless to say, the scattering prevention member 51 may be directly attached to the movable blade 21 as in the above embodiment. Further, the scattering prevention member may be made of a synthetic resin plate-like member or a curtain-like cloth.
[0036]
4] In the above embodiment, the belt loop material 6 is cut by the fixed blade 20 and the movable blade 21. However, the pair of upper and lower movable blades are driven up and down to cut. Is also good. Alternatively, a receiving plate made of rubber or the like may be provided instead of the fixed blade 20, and the movable blade may be driven downward to cut the belt loop material 6 while pressing it against the receiving plate.
[0037]
5] The belt loop material 6 may be cut into a V-shape by a single drive by a movable blade having an X-shaped blade portion. In this case, since the chips 6a and 6b are generated on both the left and right sides of the X-shaped blade, the scattering prevention members are provided on both the left and right sides of the movable blade.
[0038]
According to the first aspect of the present invention, the scatter that presses the belt loop material from above during cutting so that chips generated when the belt loop material is cut into a V-shape does not scatter near the movable blade. Since the prevention member is provided, the chips can be prevented from scattering around the sewing device, the working environment can be kept good, and the trouble of cleaning can be saved.
[0039]
According to the second aspect of the present invention, since the scattering prevention member is provided on the movable blade, during the cutting operation, the scattering prevention member moves together with the movable blade driven by the movable blade driving means, and the belt loop is formed by the movable blade. If the belt loop material is pressed only at the moment of cutting the material, the belt loop material does not interfere with the scattering prevention member when the belt loop material passes through the movable blade. Further, during the cutting operation, the scattering prevention member is not cut by the movable blade together with the belt loop material. In addition, the same effects as those of the first aspect are obtained.
[0040]
According to the third aspect of the invention, since the scattering prevention members are provided on both surfaces of the movable blade, it is possible to reliably prevent two chips generated during the cutting operation from scattering around.
According to the fourth aspect of the present invention, since the scattering prevention member has the brush-like holding portion made of a plurality of elastically deformable wires, the brush-like holding portion is elastically deformed when the belt loop material is cut. Since the loop material is pressed from above, chips generated during the cutting operation can be prevented from scattering around.
[0041]
According to the fifth aspect of the present invention, since the scattering prevention member has the resiliently deformable mesh-shaped pressing portion, the mesh-shaped pressing portion elastically deforms and presses the belt loop material from above when cutting the belt loop material. In addition, chips generated during the cutting operation can be prevented from scattering around.
[Brief description of the drawings]
FIG. 1 is a front view of a two-needle sewing machine, a belt loop material supply device, a cutter device, and a belt loop piece supply device according to an embodiment of the present invention.
FIG. 2 is a right side view of a belt loop material supply device and a cutter device.
FIG. 3 is a front view of the cutter device.
FIG. 4 is a view taken along line IV-IV in FIG. 3;
FIG. 5 is a right side view of FIG. 3;
FIG. 6 is an enlarged view of a main part of FIG. 3;
FIG. 7 is a plan view of FIG. 6;
FIG. 8 is an explanatory diagram relating to a cutting operation of the cutter device.
FIG. 9 is a front view of a cutter device (when cutting a belt loop material).
FIG. 10 is a plan view of FIG. 9;
FIG. 11 is a diagram showing a state of a holding portion (wire) when a belt loop is cut.
FIG. 12 is a diagram corresponding to FIG. 6 of a modified embodiment.
[Explanation of symbols]
4, 4A Cutter device 6 Belt loop material 6a, 6b Chip 21 Movable blade 23 Air cylinder 43, 44, 51 Scattering prevention members 43b, 44b, 51b Pressing portions 43c, 44c Wire material

Claims (5)

A belt loop material cutting cutter device comprising: a movable blade for cutting the belt loop material transferred by the transfer means into a V-shape; and a movable blade driving means for driving the movable blade to a cutting position of the belt loop material. At
A belt loop material, provided near the movable blade, a scattering prevention member that presses the belt loop material from above during cutting so that chips generated when the belt loop material is cut into a V-shape are not scattered. Cutter device for cutting. The cutter device for cutting a belt loop material according to claim 1, wherein the scattering prevention member is provided on a movable blade. The cutter device for cutting a belt loop material according to claim 2, wherein the scattering prevention members are provided on both surfaces of the movable blade. The cutter device for cutting a belt loop material according to any one of claims 1 to 3, wherein the scattering prevention member has a brush-shaped pressing portion made of a plurality of elastically deformable wires. The cutter device for cutting a belt loop material according to any one of claims 1 to 3, wherein the scattering prevention member has a resiliently deformable mesh-shaped pressing portion.

Images