JP3029172U - Bending device for strip work - Google Patents

Abstract

(57) [Abstract] [Problem] When obtaining a band-shaped bent product such as a Thomson blade from a band-shaped workpiece, it is possible to easily identify a plurality of different kinds of bend-processed products and to accurately perform right-angle bending and the like. A bending device that can be performed well is provided. A bending device operates to obtain a plurality of types of bending products, and a marking cutter 127
Add a bit mark set for each type of bending shape,
The cutting devices 46 and 47 cut each bent product after applying the bit pattern. The bit mark indicates the type of bent product. Also, the mark-providing cutter 12
In No. 7, a groove mark serving as a base point of bending work is provided, and the right angle bending can be performed accurately with the groove mark as a base point. In addition, the groove mark becomes a steal part of the meat at the planned bending part,
Eliminates the buildup of meat that tends to occur when bending at right angles.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a bending device for bending a band-shaped work into a predetermined shape.

[0002]

[Prior art]

 For example, a so-called Thomson blade is used for punching corrugated cardboard. This Thomson blade is usually pre-bent to a shape corresponding to the punching shape, and it is usually attached to the punching base.

By the way, in such a Thomson blade, it is common to attach several different kinds of bending work products to one base in combination, and one bending device makes such different kinds of bending work products. Bending products are also manufactured. In that case, it is necessary to identify the types of the bent products.

At the time of this identification, the operator looked at the bending pattern of the bent product to determine which type it belonged to, but it is difficult for the operator to immediately identify it unless he / she is considerably skilled, and If there are objects with very similar bending patterns, it may make a mistake in identification.

On the other hand, in the Thomson blade as described above, there is a considerable portion that requires bending of about 90 degrees, but it is not always easy to guarantee a high positional accuracy of the bending point for this bending of 90 degrees. Absent. The reason is that when bending is started at the bending point, the side surface of the strip-shaped work bites into the bending jig, and a right-angle bend is performed from that point as the base point, but until the bending jig bites into the side surface of the strip-shaped work. This is because there is a tendency for slippage to occur between the two, and this slippage causes individual errors in the bending position during right-angled bending and the like. Further, when the strip-shaped work is bent near 90 °, as shown exaggeratedly in FIG. 18, a bulge K of meat occurs on the lower end surface (lower surface of the blade) of the bent portion on the side opposite to the blade J, and the bulge K causes In some cases, the straightness of the lower surface of the blade decreases, and the height accuracy of the blade J may not be sufficient.

[0006]

[Problems to be solved by the device]

 The object of the present invention is to easily identify multiple types of bent products when obtaining strip-shaped bent products such as Thomson blades, perform accurate right angle bending, and straighten the bottom surface of the blade. It is to provide a technique that can improve the degree.

[0007]

[Means, actions and effects for solving the problems]

 The invention of claim 1 includes the following components. (1) Work feeding device: Feeds a belt-shaped work intermittently. (2) Bending device: The band-shaped work is intermittently bent to give a predetermined bending shape. (3) Marking cutter: Add a groove mark to the side edge of the strip-shaped work. (4) Marking operation mechanism: The mark applying cutter and the band-shaped work are moved relatively close to and away from each other to perform the groove mark applying operation. (5) Cutting device: After giving a predetermined bending shape by the bending device, the band-shaped work is cut and separated into each bent product. Then, the bending applying device operates to obtain a plurality of types of bending products. * The mark-giving cutter attaches different bit-shaped groove marks to the band-shaped workpiece for each type of bent product in order to identify those bent products. * The cutting device cuts the strip-shaped work after giving the bit-shaped groove mark to make a bent product with the bit-shaped groove mark.

The invention of claim 2 has the following features. * The bending applicator consists of a bending head that has a path for feeding the strip-shaped workpiece and a bending jig that cooperates with the strip-shaped workpiece protruding from the bending head by the relative movement of the bending head. Prepare * In the work feeding device, in the step of imparting a predetermined bending shape, the belt-shaped workpiece is provided with the intermittent feed necessary for imparting the bending shape so that the workpiece is sequentially projected from the bending head, while the workpiece is bit-shaped. In the groove marking process, the band-shaped work is intermittently fed to the operation position of the marking cutter so that a predetermined bit pattern corresponding to the type of bent product can be obtained.

In this way, by giving each bent product a bit-shaped groove mark of a different pattern for each type, it is easy to identify the type of bent product by looking at those marks without necessarily requiring skill. Can be identified, and mistakes in identification are less likely to occur.

According to a third aspect of the present invention, the components of the above-mentioned (1) workpiece feeding device, (2) bending imparting device, (3) mark imparting cutter, (4) mark attaching operation mechanism and (5) cutting device are provided. It has the following features. * The mark-giving cutter gives a V-shaped groove mark to the side edge of the band-shaped work as the base point for bending. * The bending device performs bending using the V-shaped groove mark as a base point, and then the cutting device cuts the strip-shaped workpiece to separate it into the above-mentioned bent products.

The invention of claim 4 further limits this as follows. * The bending applicator consists of a bending head that has a path for feeding the strip-shaped workpiece and a bending jig that cooperates with the strip-shaped workpiece protruding from the bending head by the relative movement of the bending head. Prepare * The work feeding device is designed so that after the V-shaped groove mark is applied to the side edge of the band-shaped work at the operating position of the mark applying cutter, the groove mark is positioned at the bending point by the bending head and the bending jig. Send a strip work.

By using the V-shaped groove mark as a bending base point, bending stress is concentrated on the groove mark, and the bending point is less likely to shift. In particular, when bending a strip-shaped workpiece at a right angle, it is possible to greatly improve the positional accuracy of the right-angle bending. In addition, giving such a V-shaped groove mark before bending also steals the meat of the portion to be bent in advance, and as a result, when bending at right angles, for example, the bending portion is bent. The rise of meat is less likely to occur on the end surface (the lower surface of the blade, etc.), and the straightness of the lower surface of the blade and thus the height accuracy of the blade are increased.

Further, by using the mark imparting cutter to impart both the groove mark that defines the bending point and the bit groove mark that identifies the type of the bent product to the strip-shaped work, the bending position accuracy and The synergistic effect of improving the cutting edge height accuracy and facilitating the identification of bent products can be obtained.

It should be noted that the number of mark applying cutters may be one, but a plurality of mark applying cutters may be arranged, and among the plurality of mark applying cutters arranged at a predetermined interval, each mark applying cutter corresponding to the bit pattern is caused to perform the applying operation. You can also As the mark giving cutter, for example, a rotary cutter that rotates a disc-shaped and sharp-edged cutting tool is preferably used, but a reciprocating type may also be used. Further, the feeding device may be one that moves the drive cutter relative to the work, or one that moves the work relative to the drive cutter.

The bit-shaped groove mark provided on the bent product is not always necessary after the type of the bent product is identified, and the bit-shaped groove mark is provided on the extension of the end of the bent product. In addition, after identifying the type of the bent product, the extended part may be cut and removed to obtain the product. On the other hand, even if the bit-shaped groove mark is left in the final bent product without using the extension, it is sufficient if there is no problem. Further, the bit-shaped groove mark may be provided at the front part or the rear part of the bent product, and may be set at an arbitrary position for each bent product.

[0016]

[Embodiment of device]

 An embodiment of the present invention will be described below based on an embodiment shown in the drawings. The bending apparatus shown in the plan view of FIG. 1 includes a main body 40. The main body 40 includes a base 41 installed on the floor surface and a table 42 located above the base 41. In the table 42, a rotary bending holder 102 that functions as a bending head is integrated with a gear plate 108 around a vertical axis O. It can be rotated automatically. The pinion 118 of the motor 116 meshes with the gear teeth 115 of the gear plate 108, and the rotary bending holder 102 is swung by the motor 116 in both forward and reverse directions within a small angle range.

As shown in the vertical sectional view of FIG. 3, the rotary bending holder 102 and the gear plate 108 are integrated by a vertical shaft 109, and a bearing 113 a of the table 42 and a vertical wall portion fixed to the table 42. It is rotatably supported by 43 bearings 113b. The gear plate 108 is provided with a pair of feed rollers 131 for feeding the strip-shaped work W in the longitudinal direction so as to sandwich the work W, and is driven by a motor 133 fixed to the gear plate 108. It is supposed to be done. Further, on the gear plate 108, a pair of lifting preventing rollers 135 and 45 are provided on the upstream side and the downstream side of the feed direction of the workpiece W, respectively, so that the shafts can freely rotate with their axes slightly inclined in the traveling direction of the workpiece W. Has been.

As shown in FIG. 1, in the rotary bending holder 102, a passage 103 of the work W is formed so as to linearly penetrate the central portion thereof, and has a width slightly wider than the thickness of the work W. Positioned fixed bending jigs 120 and 121 are provided near the passage outlet 103a. Further, a cutting device 129 including a fixed cutting die 46 and a movable cutting die 47 is provided adjacent to the rear of these.

As shown in the front view of FIG. 4, a rectangular lifting plate 48 is attached to the vertical wall portion 43 of the main body 40. The elevating plate 48 is fitted to a pair of guide rails 50 of the vertical wall portion 43 at four guided portions 49 fixed to itself, and can be vertically moved along the guide rails 50. A cutout hole 51 is formed in the central portion of the lift plate 48, and the above-described fixed bending jigs 120 and 121 are fixed to the lift plate 48 with a step, and the cutout hole 51 is formed so that each tip faces the center. It is located so as to project inward from the opening edge. The step is provided in this way so that when one of these fixed bending jigs 120 and 121 is bent, the other one does not interfere with the work.

Further, as shown in FIGS. 5 to 8, an opening 121d is formed in the fixed bending jig 121 except for a bending blade portion 121a and a fixing portion 121c including a bolt hole 121b through which a fixing bolt is inserted. Has been done. This opening 121d is formed with a height larger than the height of the work W, and avoids interference between the work that is bent or bent at right angles as the bending process progresses and the fixed bending jig 121 itself that bends the work. This is provided for the purpose of allowing the curved portion of the work or the like to enter the opening 121d. The other fixed bending jig 120 has the same structure as this.

Returning to FIG. 4, the fixed cutting die 46 and the movable cutting die 47 described above are attached to the elevating plate 48 above the fixed bending jig 121 via the holders 52 and 53, respectively. . The movable cutting die 47 is movably held in a horizontal direction by a holder 53, and is biased by a tension spring 54 in a direction away from the fixed cutting die 52. Further, the movable cutting die 47 is connected to a cutter cylinder 58 via a pin 55, a lever 56 and a pin 57, and the cutter cylinder 58 is attached to the elevating plate 48 so as to be rotatable by a shaft 59. The lever 56 is connected to the lifting plate 48 by a shaft 60. When the lever 56 is rotated counterclockwise in the figure by the operation of the cylinder 58, the movable cutting die 47 moves forward against the urging force of the spring 54 and cooperates with the fixed cutting die 46 to work. It has a cutting action on W.

The lifting plate 48 is connected at its upper end to a jig lifting cylinder 62 via a bracket 61. The jig elevating cylinder 62 is erected on the above-mentioned base 41, and the operation of the cylinder 62 causes the elevating plate 48 to move in three stages of height with respect to the height position of the work W (which is fixed). It is designed so that it can be selectively placed in the position. The three-step height positions are the highest position where the fixed bending jig 120 faces the work W, the second position at an intermediate height where the fixed bending jig 121 faces the work W, and the fixed cutting. The die 46 and the movable cutting die 47 are the lowest third position facing the work W. Then, the work W is bent at the first position by using the fixed bending jig 120, and at the second position by the opposite bending by the fixed bending jig 121, and further at the third position. The cutting will be performed at the position.

As shown in FIG. 1, below the rotary bending holder 102, a marking cutter 127, which is an extremely thin disk-shaped rotary cutter, is located. The marking cutter 127 is provided at a position slightly upstream of the passage outlet 103a of the rotary bending holder 102 at a right angle to the feed direction of the work W, and is fixed to the output shaft 126 of the motor 125 as shown in FIG. It can be rotated in a vertical plane. The motor 125 is fixed to a bracket 65, and the bracket 65 is mounted on the guided portion 66 on a pair of vertical guide rails 67 provided on the vertical wall portion 43. The cutter 127 is supported so as to be vertically movable along the guide rails 67.

As shown in FIG. 3, a mark giving cylinder 68 is connected to the bracket 65 of the motor 125, and the mark giving cutter 127 and the motor 125 are connected to each other by a mark making operation mechanism mainly having the mark giving cylinder 68. It can be moved vertically within the range of the cutout hole 69 formed in the vertical wall portion 43. As a result, the outer periphery of the mark imparting cutter 127 is brought close to the lower edge of the work W, and the work W is provided with a V-shaped groove mark m as shown in FIG. As shown in FIG. 3, a relief portion 70 is formed on the bottom of the rotary bending holder 102 when the marking cutter 127 cuts into the work W.

Further, as a cutting sound detecting device which is located substantially above the mark imparting cutter 127 and on the upper surface of the rotary bending holder 102, a sound generated when the mark imparting cutter 127 comes into contact with the strip-shaped work W is detected. A condenser microphone (hereinafter simply referred to as a microphone) 71 is fixed. As shown in FIG. 10, the microphone 71 changes the sound into a voltage by utilizing the fact that the diaphragm 72 vibrates with sound pressure and the electrostatic capacitance between the opposite plate (fixed electrode) 73 changes. It is well known.

As shown in FIG. 11, the microphone 71 is connected to the amplifier circuit 74 and the filter 75, and the output voltage of the microphone is amplified by the amplifier circuit 74. Further, the filter 75 removes the frequency waveform outside the frequency range of the cutting sound cut into the work W by the mark imparting cutter 127 as noise, and the remaining waveform signal is taken into the integrating circuit 76. In the integrating circuit 76, the output waveform from the filter 75 is integrated in a constant short time ta (for example, about 0.5 second), and the output from the integrating circuit 76 is guided to the Schmitt trigger circuit 78. A threshold value is set in advance in the Schmitt trigger circuit 78, and an output signal is supplied to the timer 79 when the output value from the integrating circuit 76 becomes equal to or higher than the threshold value. There is.

Here, the output waveform passed through the filter 75 is further integrated by the integrator circuit 76 because the noise component remains to some extent also by the filter 75, and therefore whether the output waveform is noise or an actual cutting sound is determined. In terms of discrimination, the voltage waveform is integrated for a certain period of time, and when it exceeds a threshold value, it is determined that the marking cutter 127 has actually contacted the work W. When the Schmitt trigger circuit 78 supplies the output signal to the timer 79, the timer 79 is set at a predetermined time t. The timer 79 is connected to the valve control circuit 80, and the valve control circuit 80 controls the drive of the electromagnetic valve 81 of the above-mentioned marked cylinder 68. When the time t set by the timer 79 is up, the rise of the cylinder 62 is stopped through the valve control circuit 80 and the electromagnetic valve 81, and the cylinder 62 is turned down.

A motor 116 as a bending head drive unit and a motor 133 as a feed roller drive unit are connected to the control board 82 to which the mark giving cylinder 68 is connected. The control panel 82 also stores data such as bending shapes, bending positions, bending amounts, groove mark positions, groove mark depths, cutting positions, and bit patterns of a plurality of types of bent products, which are used for feeding the workpiece. It is stored in association with data.

Next, the overall operation of the bending device 101 as described above will be described. In FIG. 1, for example, a strip-shaped work W such as a Thomson blade material is fed from the rear of the rotary bending jig 102 to the front by driving the feed roller 131, and the lifting preventing rollers 135 and 45 feed the work W to the gear plate 108. Press on the guide surface of. The feeding of the work W is stopped in a state where the work W is projected from the passage outlet 103a of the rotation bending holder 102 by a predetermined amount. In FIG. 4, the height position of the elevating plate 48 is selected by the jig elevating cylinder 62 to determine which of the fixed bending jigs 120 and 121 is to be used.

Thereafter, bending processing is performed, for example, as shown in FIGS. That is, from the state shown in (a), when the rotary bending holder 102 is rotated clockwise by a small angle θ1 as shown in (b), the work W protruding from the rotary bending holder 102 is fixed. It is pressed against the tool 120 and bent to the opposite side. Thereafter, as shown in (c), the rotary bending holder 102 is rotated so as to return to the original position (neutral position).

Further, as shown in (d), after the work W is moved forward by a predetermined amount, the rotary bending holder 102 is again moved to the fixed bending jig 120 side as shown in (e), for example. After the work W is bent by θ2 and the work W is bent, the work W is restored as shown in (f). By repeating such a bending step, the work W can be curved, for example, in an arc shape, or can be bent into a desired shape such as a bent shape.

Bending such as right-angled bending with the groove mark m as a base point is performed as shown in FIGS. 13 (a) to 13 (d). As shown in (b), the workpiece W having the V-shaped groove mark m provided by the mark providing cutter 127 as shown in (a) has the groove mark m as shown in (b). Or, it is fed until it coincides with the bending position with 121) and stops at that position. Then, the groove mark m is used as a bending point to be bent by 90 degrees, for example. The groove mark m for the work W is given to the straight line portion before being subjected to the bending process.

Next, the control of the groove mark imparting for the bending process and the bit-shaped groove mark imparting for identifying the type of the bent product will be described with reference to the flowchart shown in FIG. In step S1 (hereinafter simply referred to as S1; the same applies to other steps), the bending data such as the preset bending shape and bending position, and the groove mark data such as the groove mark position and the bit pattern are fed to the work W. It is read in association with the quantity. When the workpiece W is sent in S2 and a groove mark is applied, the process proceeds from S3 to S4. When the mark applying position of the workpiece W is located directly above the cutter 127 in S4, the mark applying operation is performed in S5.

FIG. 15 shows this routine, in which the work W is stopped when the portion of the work W where the groove mark is to be applied is directly above the mark application cutter 127 of FIG. 1 (S51 in FIG. 15), and The mark giving cylinder 68 shown in FIG. 3 is activated to raise the mark giving cutter 127 together with the motor 125 toward the lower edge of the work W (S52 in FIG. 15). Then, in S53, it is determined whether or not the marking cutter 127 has actually contacted the lower edge of the work W. That is, the output waveform of the microphone 71 attached to the rotary bending holder 102 shown in FIG. 11 is amplified, noise is removed by the filter 75, the waveform after passing through the filter is integrated, and the output value is Schmitt. When the threshold value of the trigger circuit 78 is exceeded, the determination in S53 of FIG. 15 becomes YES, and the timer is set in S54 at this point. The time t set in this timer defines the time for the mark giving cutter 127 to cut into the work W. If the time is up in S55, the operation of the mark giving cylinder 68 is stopped in S56 and the descent is started. .

Returning to FIG. 14, when the work W is sent to the bending position, the work W is subjected to a right-angle bending process using the groove mark m as a bending point, as shown in FIG. Be seen.

Then, when the bending process is completed, the process proceeds to S9, and if the mode for applying the bit-shaped groove mark (bit pattern) is set, the bit pattern M (based on the bit pattern data is determined in S10. For example, see FIG. 18). This routine is shown in FIG. When the work W is sent to the bit-shaped groove mark application position (S 101, S 102), the mark application operation of S 103 (contents are the same processing as in FIG. 15) is executed, and thereafter, until the bit pattern application is completed. Steps S101 to S104 are repeated. Here, as shown in FIG. 17A, for example, a 5-bit pattern of ma to me is set, and a groove mark (for example, V groove) is attached to each bit position [1] or not [0]. Thus, a total of 32 kinds of bit patterns can be given from 5 bits [00000] to [11111]. In other words, the 32 types of bent products can be visually identified. In the case of FIG. 18 as an example, the groove depth of each bit is, for example, about 0.1 mm, and the portion where the bit pattern is applied is, for example, 4 to 10 mm at the rear end of the work (bending product 155). The degree can be secured. This part (w) can then later be cut, for example at C2, and removed from the bent product.

After applying the bit pattern, the process proceeds to the cutting step of S11 in FIG. That is, the fixed cutting die 46 and the movable cutting die 47 of FIG. 4 perform the cutting at the point C1 in the example of FIG. 18, and the bent portion 155 is separated from the subsequent work W as a bending work product. . After that, the same bending process, marking, etc. are repeated for the subsequent part of the work W, and different or the same kind of bending work is made one after another, and when the bending work for one work W is finished, Work W will be moved to.

In addition, in applying the bit pattern, as shown in FIG. 17B, for example, five mark applying cutters 127a to 127e are provided at predetermined intervals, and the mark applying cutters are simultaneously raised corresponding to the bit pattern. Thus, individual groove marks (V grooves) can be formed at once.

Further, in each of the bent products 155 shown in FIG. 18, the groove mark m becomes a portion for stealing the meat in the planned bending portion, eliminating the bulge K of the meat that occurs in the process of right-angle bending or the like, and straightness of the lower surface of the blade. Increase. The individual groove marks of the bit pattern M may be used as a reference for determining the processing position when performing additional processing on the band blade later (for example, forming the notch 157 shown in FIG. 18). Further, in the above-mentioned embodiment, the bit pattern M is applied after the bending process, but it can be performed before the bending process. In this case, the bit pattern M is applied to the tip of the bent product. Will be done.

Further, for example, while the mark giving cutter 127 is raised by the ball screw mechanism and the mark giving motor, the cutting amount after the cutter 127 comes into contact with the work W is determined by the number of rotations of the mark giving motor (the number of pulses). Etc.). Further, for example, instead of the rotary bending holder 102, a moving bending holder which makes a reciprocating linear motion can be adopted.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment of the present invention.

FIG. 2 is a plan view showing a part thereof.

FIG. 3 is a vertical sectional view of FIG.

FIG. 4 is a front view thereof.

FIG. 5 is a front view of a fixed bending jig.

FIG. 6 is a plan view thereof.

FIG. 7 is a plan sectional view thereof.

FIG. 8 is an enlarged cross-sectional view showing a part of the enlarged view.

FIG. 9 is an explanatory diagram of marking a strip-shaped work.

FIG. 10 is an explanatory diagram of a condenser microphone.

FIG. 11 is a block diagram of a control circuit relating to marking.

FIG. 12 is a process drawing of bending.

FIG. 13 is a process diagram illustrating a right-angle bending process using a groove mark as a bending base point.

14 is a flowchart showing the overall operation of the bending apparatus shown in FIG.

FIG. 15 is a flowchart illustrating processing of a marking operation.

FIG. 16 is a flowchart illustrating a process of adding a bit pattern.

FIG. 17 is an explanatory diagram illustrating a bit pattern application position and a method thereof.

FIG. 18 is a perspective view showing an example of a band blade provided with a bit pattern.

[Explanation of symbols]

 102 rotary bending holder (bending head) 103 passages 120, 121 fixed bending jig 124 mark imparting device 127 rotary cutter (mark imparting cutter) 131 feed roller (work feeding device) 46 fixed cutting die (cutting device) 47 movable cutting die ( Cutting device) 68 Marking cylinder (marking mechanism) 71 Condenser microphone W Band work M bit pattern m Groove mark

[Procedure amendment]

[Submission date] February 29, 1996

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 6

[Correction method] Change

[Correction content]

Claims (6)

[Scope of utility model registration request] 1. A work feeding device for intermittently feeding a band-shaped work, a bending imparting device for intermittently bending the band-shaped work to give a predetermined bending shape, and a groove mark on a side edge of the band-shaped work. A mark imparting cutter for attaching, a mark attaching operation mechanism that relatively moves the mark imparting cutter and the strip-shaped workpiece relatively to each other to perform the groove mark imparting operation, and a predetermined bending by the bend imparting device. After a shape is provided, a cutting device that cuts the strip-shaped workpiece to separate each bending processed product is provided, and the bending application device operates to obtain a plurality of types of bending processed products, and the mark application cutter is In order to identify these bent products, a bit-shaped groove mark having a different pattern for each type of the bent product is given to the strip-shaped work, and the bit-shaped groove mark Azukanochi, the cutting device is bending apparatus of strip-shaped workpiece, characterized in that the workpiece bending with bit-shaped groove mark by cutting the strip-shaped workpiece. 2. The bending applying device cooperates with a bending head having a passage for feeding the strip-shaped work and a relative movement of the bending head with respect to the strip-shaped work protruding from the bending head to perform a bending operation. And a bending jig for performing, in the step of imparting the predetermined bending shape, the work feeding device imparts the intermittent feed necessary for imparting the bending shape to the strip-shaped workpiece and applies the same to the bending head. On the other hand, in the step of applying the bit-shaped groove mark, on the other hand, in the step of applying the bit-shaped groove mark, the band-shaped groove is formed with respect to the operating position of the mark-providing cutter so that a predetermined bit pattern corresponding to the type of the bent product is obtained. The apparatus for bending a strip-shaped work according to claim 1, wherein the work is sent intermittently. 3. A work feeding device for intermittently feeding a band-shaped work, a bending imparting device for intermittently bending the band-shaped work to give a predetermined bending shape, and a groove mark on a side edge of the band-shaped work. A mark imparting cutter for attaching, a mark attaching operation mechanism that relatively moves the mark imparting cutter and the strip-shaped workpiece relatively to each other to perform the groove mark imparting operation, and a predetermined bending by the bend imparting device. A cutting device that cuts the band-shaped work after separating the shape into individual bending products, and the mark-providing cutter forms the groove mark on the side edge of the band-shaped work by V as a base point of the bending process. It is applied in the shape of a letter, the bending application device performs the bending process using the V-shaped groove mark as a base point, and then the cutting device cuts the strip-shaped work to produce the bending product. Bending apparatus of strip-shaped workpiece, characterized in that the separation. 4. The bending imparting device cooperates with a bending head having a passage for feeding the strip-shaped work and a relative movement of the bending head with respect to the strip-shaped work protruding from the bending head to perform a bending operation. And a bending jig for performing the work feeding device, wherein the work feeding device applies the V-shaped groove mark to the side edge of the strip-shaped work at an operating position of the mark applying cutter, and then the groove mark is used as the bending head. The apparatus for bending a strip-shaped work according to claim 3, wherein the strip-shaped work is fed so as to be positioned at a bending point by the bending jig. 5. A work feeding device for intermittently feeding a band-shaped work, a bending imparting device for intermittently bending the band-shaped work to give a predetermined bending shape, and a groove mark on a side edge of the band-shaped work. A mark imparting cutter for attaching, a mark attaching operation mechanism that relatively moves the mark imparting cutter and the strip-shaped workpiece relatively to each other to perform the groove mark imparting operation, and a predetermined bending by the bend imparting device. After a shape is provided, a cutting device that cuts the strip-shaped workpiece to separate each bending processed product is provided, and the bending application device operates to obtain a plurality of types of bending processed products, and the mark application cutter is the Add the groove mark to the side edge of the strip-shaped work as a base point for bending,
Further, the bending imparting device performs a bending process using the groove mark as a base point, and the mark imparting cutter uses a bit-shaped groove having a different pattern for each type of the bending processed product in order to identify the plurality of types of the bent processed products. A bending device for a band-shaped work, wherein a mark is applied to the band-shaped work, and the cutting device cuts the band-shaped work into a bent product with a bit-shaped groove mark. 6. The bending head is provided so as to perform a swinging motion, the bending jig is provided in a fixed position, and a strip-shaped workpiece protruding from the bending head is bent by the swinging motion of the bending head. The bending device for a strip-shaped workpiece according to claim 2, 4 or 5, wherein the bending process is performed by being pressed against a jig.