Cutting device

Abstract

To provide a cutting device which can cut a wire properly while utilizing blades of a hand tool.SOLUTION: In a cutting device, blades 41a, 41b of a hand tool 3 may be attached to or detached from attachment parts 42, 43. When the blades 41a, 41b are damaged, the damage can be fixed only by replacing the blades with commercially available spare blades of the hand tool 3. The blades 41a, 41b of the hand tool 3 are fixed to handles 3a, 3b of the hand tool 3 to be used and may be stably fixed to the attachment parts 42, 43. Thus, cutting of the blades 41a, 41b into the wire 2 can be stabilized. Therefore, the cutting device can cut the wire 2 properly while utilizing the blades 41a, 41b of the hand tool 3.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a cutting device, and more particularly to a cutting device that can appropriately cut wire while utilizing the blade of a hand tool. [Background technology]

[0002] Cutting devices that cut wire by applying a driving force from a driving means to the blades of a hand tool are known. For example, Patent Document 1 describes a cutting device in which a driving force from a cylinder 9 (driving means) is applied to an upper blade support portion 13 (mounting portion) that holds an upper blade rod 17 (handle) of nippers 16 (hand tool), and the driving force opens and closes the upper and lower blades of the nippers 16. This cutting device can cut wire using the driving force of the cylinder 9. Furthermore, when the blades of the nippers 16 become damaged, they can simply be replaced with other commercially available nippers 16, eliminating the need for, for example, expensive blades specifically designed for the cutting device. This reduces blade replacement costs. Patent Document 2 also describes a similar technology. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Publication No. 50-031593 (for example, page 2, column 3) [Patent Document 2] Japanese Utility Model Application Publication No. 60-171270 (e.g., Figure 3) Summary of the Invention [Problem to be solved by the invention]

[0004] However, the handles of hand tools are designed to be held by the operator and are not necessarily shaped to be suitable for attachment to a cutting device. For example, if the handle of a hand tool is curved, as in the prior art described above, it can be difficult to stably attach the handle to the attachment part of the cutting device. Applying a driving force to the attachment part when the handle is unstable also causes the blade to cut the wire unstably, resulting in an inability to properly cut the wire.

[0005] The present invention has been made to solve the above-mentioned problems, and aims to provide a cutting device that can properly cut wire while using the blade of a hand tool. [Means for solving the problem]

[0006] In order to achieve this object, the cutting device of the present invention is a hand tool having a pair of handles and a pair of blades detachably attached to the tip ends of the pair of handles and opened and closed by operating the pair of handles, and is used to cut wire using the blades, and the cutting device comprises: a mounting portion to which the pair of blades are attached in an openable and closable state; and a driving means for applying a driving force to the mounting portion to open and close the pair of blades. a supply means for supplying the wire rod between the pair of blades; a support member disposed downstream of the blades in the supply direction of the wire rod by the supply means, the support member supporting the wire rod with the upper surface side of the wire rod open; and a chute having an insertion portion into which the support member is inserted, the upper surface of which slopes downward from the insertion portion toward the side of the support member. The blade is detachable from the attachment part. The support member is configured to be vertically displaceable between a support position where the wire is supported during cutting and a lowered position where the cut wire is placed on the upper surface of the chute. do. The cutting device of the present invention is a cutting device that cuts wire using the blades of a hand tool having a pair of handles and a pair of blades that are detachably attached to the tip ends of the pair of handles and open and close by operating the pair of handles, and is equipped with a mounting portion to which the pair of blades are attached in an openable and closable state, and a drive means that applies a drive force to the mounting portion to open and close the pair of blades, the mounting portion comprising a fixed mounting portion fixed to the housing of the cutting device, and a movable mounting portion that is rotatable relative to the fixed mounting portion and to which the drive force of the drive means is applied, and the pair of blades are detachably attached to the fixed mounting portion and the movable mounting portion in a state where they are rotatably supported relative to each other. The cutting device of the present invention is a cutting device for cutting wire using the blades of a hand tool having a pair of handles and a pair of blades that are detachably attached to the tip ends of the pair of handles and open and close when the pair of handles are operated, and is equipped with: an attachment portion to which the pair of blades are attached in an openable and closable state; a drive means that applies a drive force to the attachment portion to open and close the pair of blades; and a work table that is positioned downstream of the blades in the supply direction of the wire toward the pair of blades and on which an operator performs the work of cutting the wire, the blades being detachably attached to the attachment portion, and the work table is equipped with: a rail that extends from the blade side toward the downstream side along the supply direction, a block that is slidably supported on the rail and supports the tip of the wire, a measuring means that measures the cut length of the wire from the relative position of the block with respect to the rail, and an instruction means that is operable by the operator and instructs the start of cutting the wire with the pair of blades. [Effects of the Invention]

[0007] Claim 1 From 3 toThe described cutting device includes a mounting portion to which a pair of blades of a hand tool can be attached in an openable and closable state, and a drive means for applying a driving force to the mounting portion to open and close the pair of blades. Therefore, wire can be cut by opening and closing the blades using the driving force of the drive means. Because the blades are detachable from the mounting portion, if the blades become damaged, they can simply be replaced with replacement blades from a commercially available hand tool. Furthermore, the hand tool blades are fixed to the handle of the hand tool and can be stably fixed to the mounting portion, which also stabilizes the blade's cutting into the wire. This effectively allows wire to be cut appropriately while using the hand tool blades.

[0008] Also, Claim 1 According to the described cutting device ,one The cutting tool is provided with a supply means for supplying wire between the pair of blades and a support member for supporting the wire downstream of the blades in the supply direction of the wire by the supply means, so that the wire supplied between the pair of blades by the supply means is cut while being supported by the support member.

[0009] The support member inserted into the insertion portion of the chute is configured to be displaceable up and down between a support position that supports the wire when it is cut by the blade, and a lowered position that places the cut wire on the upper surface of the chute.By displacing the support member that supports the cut wire to the lowered position, the wire gets caught on the upper surface of the chute (the area where the insertion portion is not formed).

[0010] The support member supports the wire with its upper surface open, and the upper surface of the chute is inclined downward from the insertion section toward the side of the support member, so that the wire caught on the upper surface of the chute falls from the support member and slides down the upper surface of the chute to be discharged to the side. In this way, by discharging the wire using the vertical movement (linear motion) of the support member, the structure of the cutting device can be simplified compared to, for example, discharging the wire by rotating the support member. According to the cutting device of claim 2, the mounting portion includes a fixed mounting portion fixed to the housing of the cutting device and a movable mounting portion configured to be rotatable relative to the fixed mounting portion and to which the driving force of the driving means is applied. The pair of blades are attached to the fixed mounting portion and the movable mounting portion while being axially supported so that they can rotate relative to each other. Therefore, the pair of blades can be opened and closed by rotating the movable mounting portion relative to the fixed mounting portion using the driving force of the driving means. This eliminates the need to apply the driving force of the driving means to one of the pair of blades. In other words, since the pair of blades can be opened and closed using the driving force of a single driving means, the manufacturing cost of the cutting device can be reduced. According to a third aspect of the present invention, the cutting device includes a work table disposed downstream of the pair of blades in the direction in which the wire is fed toward the pair of blades, on which an operator performs the wire cutting operation. The work table includes a rail extending from the blade side toward the downstream side in the direction in which the wire is fed, a block slidably supported on the rail and supporting the tip of the wire, and a measuring means for measuring the cut length of the wire from the position of the block relative to the rail. By adjusting the position of the block relative to the rail, the measuring means can measure the cut length of the wire when the tip of the wire is supported by the block. Therefore, the operator can set the cut length of the wire measured by the measuring means to the desired length and use the indicating means to start cutting the wire, thereby cutting the wire to the desired length. This has the effect of improving the workability of the wire cutting operation.

[0011] Claim 4According to the cutting device described in claim 1 or 2 In addition to the effects of the cutting device described above, the following effect is achieved: The chuck is disposed downstream of the support member and clamps the tip of the wire when cutting the wire, so that the tip of the wire can be fixed by the chuck during cutting. This ensures the stability of the wire when cutting, even when the wire is supported by the support member with its upper surface open, so that the wire can be cut appropriately.

[0012] Claim 5 According to the cutting device described in claim 4 In addition to the effects of the cutting device described above, the present invention has the following effect: The chuck is configured to be movable in the wire feeding direction between a receiving position upstream of the support member where the tip of the wire is received, and a cutting position where the tip of the wire received at the receiving position is pulled downstream of the support member and cut. This allows the tip of the wire to be pulled in a straight line from the receiving position to the cutting position by the chuck. This prevents the wire from bending when pulled to the cutting position, making it easier to cut the wire to the desired length.

[0013] Claim 6 According to the cutting device described in claim 5 In addition to the effects of the cutting device described above, the following effects are achieved: The support member descends to the lowered position when the chuck moves between the receiving position and the cutting position of the wire rod, preventing the support member from interfering with the movement of the chuck. Furthermore, by retracting the support member from the chuck's movement trajectory, the wire rod can be cut with the chuck positioned upstream (on the blade side) of the support member, enabling the wire rod to be cut to various lengths.

[0014] Claim 7 According to the cutting device described in claim 6In addition to the effects of the cutting device described above, the present invention provides the following effect: When the chuck moves from the receiving position to the cutting position, the support member starts to rise toward the support position before the chuck reaches the cutting position, so that the support member can support the wire before it is pulled out to the cutting position. This prevents the wire from bending under its own weight as it is pulled out, making it easier to cut the wire to the desired length.

[0015] Claim 8 According to the cutting device described in claim 5 from 7 In addition to the effects of any one of the cutting devices described above, the present invention provides the following effects. A storage box is provided to receive the wire rod discharged from the chute, so that the wire rod that slides down the top surface of the chute is stored in the storage box. The chute is located downstream of the blade, and the chuck releases the clamped state of the wire rod after the cut is pulled out until the entire wire rod is on the top surface of the chute. This prevents the wire rod from sliding down while partly protruding from the chute, stabilizing the posture of the wire rod as it slides down the top surface of the chute. In other words, the wire rod is more likely to be discharged into the storage box while remaining straight along its feed direction, which has the effect of allowing the wire rods to be stored in an aligned state in the storage box when multiple wire rods are repeatedly cut.

[0016]

[0017]

[0018] Claim 9 According to the cutting device described in claim 3In addition to the effects of the cutting device described above, the following effects are achieved. Since the device is provided with a support member that supports the wire between the blade and the block in the wire feed direction, the support member can prevent the wire from bending due to its own weight. This makes it easier to cut the wire to the desired length. The rail extends upstream of the support member in the wire feed direction, and the support member is configured to be displaceable between a support position where the wire is supported on the rail and a retracted position where the support member is retracted from the rail. Therefore, by retracting the support member from the rail, the wire can be cut with the block positioned upstream (on the blade side) of the support member. This has the effect of enabling the wire to be cut to various lengths.

[0019] Claim 1 0 According to the cutting device described in claim 9 In addition to the effects of the cutting device described above, the present invention has the following effect: The retracted position of the support member is on the opposite side of the rail from the supporting means, so the support member can be retracted to the side opposite the side where the operator works. This prevents the support member retracted from the rail from interfering with the operator's work, which has the effect of improving the workability of the wire cutting operation. [Brief explanation of the drawings]

[0020] [Figure 1] FIG. 1 is a perspective view of a cutting device according to a first embodiment. [Figure 2] 2(a) is a front view of the cutting portion as viewed in the direction of arrow IIa in FIG. 1, and FIG. 2(b) is a front view of the cutting portion showing a state in which the blades are closed from the state shown in FIG. 2(a). [Figure 3] FIG. 1(a) is a front view of the hand tool showing the blade attached, and FIG. 1(b) is a front view of the hand tool showing the blade removed. [Figure 4] 4 is a partially enlarged side view of the cutting device as seen in the direction of arrow IV in FIG. 1. [Figure 5] FIG. 5 is a partially enlarged cross-sectional view of the chuck taken along line VV in FIG. 4. [Figure 6] 5 is a partially enlarged side view of the cutting device showing how the wire rod is pulled out downstream by the chuck from the state shown in FIG. 4. [Figure 7] FIG. 10 is a partially enlarged side view of the cutting device showing the state in which the cut wire is pulled out further downstream by the chuck. [Figure 8] 8(a) is a partially enlarged cross-sectional view of the cutting device taken along line VIIIa-VIIIa in FIG. 7, and FIG. 8(b) is a partially enlarged cross-sectional view of the cutting device showing the state in which the wire is discharged from the state in FIG. 8(a) toward the storage box. [Figure 9] FIG. 10 is a perspective view of a cutting device according to a second embodiment. [Figure 10] 10 is a top view of the cutting device as seen in the direction of arrow X in FIG. 9. DETAILED DESCRIPTION OF THE INVENTION

[0021] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. First, a schematic configuration of a cutting device 100 will be described with reference to Fig. 1. Fig. 1 is a perspective view of the cutting device 100 in the first embodiment.

[0022] As shown in Fig. 1, the cutting device 100 is a device for cutting a wire 2 wound around a drum 1. The wire 2 is exemplified by an electric wire in which a conductor such as copper is covered with an exterior, but the cutting device 100 may also be used to cut other linear materials such as a metal steel wire or an optical fiber cable.

[0023] The cutting device 100 includes a housing 10 for cutting the wire 2 therein. The housing 10 is formed in a box shape to house each part except for a storage box 80, which will be described later, and Fig. 1 illustrates a state in which a side plate closing the side (the arrow R side) of the internal space of the housing 10 has been removed.

[0024] The housing 10 is provided with feed rollers 20 for drawing out the wire 2 from the drum 1. The feed rollers 20 are configured to be rotatable around an axis along the horizontal direction (the direction of the arrow LR). The feed rollers 20 are provided in pairs, one above the other, with the wire 2 sandwiched between them, and the distance between the outer circumferential surfaces of the pair of feed rollers 20 is slightly smaller than the outer diameter of the wire 2. Therefore, the wire 2 is inserted between the pair of feed rollers 20, and the wire 2 is fed out by the feed rollers 20 by applying a driving force from a driving source (not shown) to the feed rollers 20.

[0025] In Fig. 1, arrow FB indicates the feeding direction of the wire rod 2 by the feed roller 20 (hereinafter referred to as "the supply direction of the wire rod 2"), LR indicates the horizontal direction (left-right direction) perpendicular to the supply direction of the wire rod 2, and UD indicates the up-down direction, and this also applies to Figs. 2 to 8. The front side (arrow F side) in the supply direction of the wire rod 2 is the downstream side, and the rear side (arrow B side) in the supply direction is the upstream side.

[0026] On the upstream side (the side of arrow B) of the feed roller 20, straightening rollers 30 and 31 are provided to straighten the bend of the wire 2 wound around the drum 1. The straightening roller 30 is configured to be rotatable around an axis along the vertical direction, and the straightening roller 31 is configured to be rotatable around an axis along the horizontal direction.

[0027] The straightening roller 30 is composed of a left roller 30a located on the left side (arrow L side) of the wire rod 2 and a right roller 30b located on the right side (arrow R side) of the wire rod 2. A plurality of left rollers 30a (three in this embodiment) are arranged along the supply direction of the wire rod 2, and a plurality of right rollers 30b (two in this embodiment) are also arranged along the supply direction of the wire rod 2.

[0028] The straightening roller 31 is composed of an upper roller 31a located above the wire rod 2 and a lower roller 31b located below the wire rod 2. A plurality of upper rollers 31a (three in this embodiment) are arranged along the supply direction of the wire rod 2, and a plurality of lower rollers 31b (two in this embodiment) are also arranged along the supply direction of the wire rod 2.

[0029] The distance between the outer peripheral surfaces of the left roller 30a and the right roller 30b and the distance between the outer peripheral surfaces of the upper roller 31a and the lower roller 31b are formed to be slightly smaller than the outer diameter of the wire rod 2. This allows the rollers 30a, 30b, 31a, 31b to be pressed against both the left and right surfaces and the upper and lower surfaces of the wire rod 2, respectively, so that the straight wire rod 2 with its bend corrected can be supplied downstream (towards the arrow F).

[0030] The plurality of left rollers 30a and right rollers 30b aligned in the supply direction of the wire rod 2 are arranged in a staggered pattern, and the plurality of upper rollers 31a and lower rollers 31b aligned in the supply direction are also arranged in a similar staggered pattern. This allows the rollers 30a, 30b, 31a, 31b of the straightening rollers 30 and 31 to alternately come into contact with the wire rod 2, thereby effectively straightening the bend in the wire rod 2.

[0031] In this embodiment, the straightening rollers 30, 31 that are pressed against the wire rod 2 are configured to follow the feeding of the wire rod 2 by the feed roller 20, but a driving force for feeding the wire rod 2 downstream may be applied to the straightening rollers 30, 31. The wire rod 2 whose bending has been straightened by the straightening rollers 30, 31 is supplied to a cutting section 40 located downstream of the feed roller 20.

[0032] A partition wall 11 of the housing 10 is provided between the feed roller 20 and the cutting section 40, and a guide tube 12 for guiding the wire rod 2 protrudes from this partition wall 11 toward the cutting section 40. The wire rod 2 supplied from the guide tube 12 toward the cutting section 40 is cut while being supported by a pair of support members 50, 51 aligned in the supply direction of the wire rod 2 and a chuck 60, and the wire rod 2 cut in the cutting section 40 is discharged into a storage box 80 via a chute 70.

[0033] Next, the detailed configuration of the cutting unit 40 will be described with reference to Figures 2 and 3. Figure 2(a) is a front view of the cutting unit 40 as viewed in the direction of arrow IIa in Figure 1, and Figure 2(b) is a front view of the cutting unit 40 showing a state in which the blades 41a and 41b are closed from the state shown in Figure 2(a). Figure 3(a) is a front view of the hand tool 3 showing a state in which the blades 41a and 41b are attached, and Figure 3(b) is a front view of the hand tool 3 showing a state in which the blades 41a and 41b are removed. Note that in Figure 2(a), the base portion of the blade 41b and the recess 43b hidden by the movable block 43a are shown by dashed lines.

[0034] 2, the cutting unit 40 has blades 41a and 41b for cutting the wire 2. The blades 41a and 41b have the same shape and are supported around a shaft 41c extending in the feeding direction of the wire 2 (the direction of the arrow FB).

[0035] The blade 41a is attached to a mounting portion 42 fixed to the housing 10. The mounting portion 42 has a base plate 42a fixed to the bottom surface of the internal space of the housing 10. A support plate 42b extends upward from the base plate 42a, and a substantially rectangular parallelepiped fixed block 42c for mounting the blade 41a is fixed to the downstream surface of the support plate 42b (the front side in the direction perpendicular to the plane of FIG. 3). A recess 42d shaped to fit along the base end (root) of the blade 41a is formed in the downstream surface of the fixed block 42c, and the blade 41a fitted into this recess 42d is detachably attached to the fixed block 42c by a bolt B. In other words, the blade 41a is fixed so as not to be displaceable relative to the housing 10.

[0036] The mounting part 43 to which the blade 41b is fixed includes a movable block 43a having substantially the same shape as the fixed block 42c of the mounting part 42. A recess 43b (see FIG. 2(a)) shaped to fit along the base end (root) of the blade 41b is formed on the surface of the movable block 43a on the upstream side (the rear side in the direction perpendicular to the paper surface of FIG. 3), and the blade 41b fitted into this recess 43b is detachably attached to the movable block 43a by a bolt (not shown).

[0037] One end of a link 43c is journaled to a portion of the movable block 43a opposite to the portion where the blade 41b is attached (the end on the side of the arrow L in FIG. 2(a)), and the other end of the link 43c is journaled to a piston rod 44a of a cylinder 44 (see FIG. 1). The piston rod 44a moves up and down by intake and exhaust of air into and out of the cylinder 44.

[0038] In the pre-cutting state where the blades 41a and 41b are open, the fixed portion between the blade 41a and the fixed block 42c is located to the right (arrow R side) of the shaft 41c, and the connecting portion between the movable block 43a and the link 43c is located to the left (arrow L side) of the shaft 41c. Also, in the pre-cutting state, the link 43c vertically connects the movable block 43a and the piston rod 44a.

[0039] Therefore, when a driving force due to the up-and-down movement of the piston rod 44a is applied to the movable block 43a via the link 43c, the movable block 43a rotates around the axis 41c. With this rotation of the movable block 43a, the blade 41b also opens and closes (rotates) along a plane perpendicular to the feeding direction of the wire 2. Therefore, with the wire 2 inserted between the open blades 41a and 41b, the wire 2 is cut by applying a driving force to close the blade 41b from the cylinder 44 (see FIG. 2(b)).

[0040] Due to a reaction force when the blades 41a and 41b cut the wire 2, a load acts on the fixed portion of the base of the blade 41a with the fixed block 42c (the opposite side of the cutting edge across the shaft 41c) in a direction that rotates the blade around the shaft 41c. A similar load also acts on the support plate 42b, but since the support plate 42b is formed in a plate shape along a plane perpendicular to the shaft 41c (the feeding direction of the wire 2), the strength of the support plate 42b against the load can be effectively ensured.

[0041] Furthermore, a connecting plate 42e is fixed to the support plate 42b, connecting the downstream surface of the support plate 42b (the front side in the direction perpendicular to the paper surface of FIG. 2) to the base plate 42a, and this connecting plate 42e is also provided on the upstream surface of the support plate 42b (the rear side in the direction perpendicular to the paper surface of FIG. 2). This connecting plate 42e also effectively ensures the strength of the support plate 42b against the above-mentioned load.

[0042] As shown in Figure 3, blades 41a and 41b are detachably attached to hand tool 3. Hand tool 3 has a pair of handles 3a and 3b that are operated by an operator, and a step 3c into which blade 41a is fitted is formed at the tip of handle 3a (the upper end in Figure 3(b)). Handles 3a and 3b have the same shape, and a step into which blade 41b is fitted is also formed in handle 3b so as to face step 3c of handle 3a (on the surface toward the rear in the direction perpendicular to the plane of Figure 3(b)).

[0043] A pair of through holes 3d aligned in the longitudinal direction of the handles 3a, 3b is formed in this step 3c, and through holes 41d are formed in each of the blades 41a, 41b at positions corresponding to the through holes 3d in the handles 3a, 3b. By fastening nuts onto bolts inserted into these through holes 3d, 41d, the blades 41a, 41b journaled by shafts 41c can be fixed to the handles 3a, 3b.

[0044] For commercially available (ready-made) hand tools 3 with detachable blades 41a, 41b, replacement blades (41a, 41b) are mass-produced and sold in case the blades 41a, 41b become damaged. In other words, the blades 41a, 41b alone are easily available.

[0045] 2, this embodiment includes mounting portions 42, 43 to which blades 41a, 41b of hand tool 3 are attached in an openable and closable state, and a cylinder 44 (see FIG. 1) that applies a driving force to mounting portion 43 to open and close the pair of blades, so that wire 2 can be cut by opening and closing blades 41a, 41b using the driving force of cylinder 44. Since blades 41a, 41b are detachably attached to mounting portions 42, 43, when blades 41a, 41b become damaged, they can simply be replaced with other commercially available (ready-made) blades 41a, 41b.

[0046] The blades 41a, 41b of the hand tool 3 are fixed to the tips of the handles 3a, 3b of the hand tool 3 when in use, and can also be stably fixed to the mounting portions 42, 43, which allows the blades 41a, 41b to stably cut into the wire 2. Therefore, the wire 2 can be appropriately cut using the blades 41a, 41b of the hand tool 3.

[0047] Here, instead of fixing fixed block 42c to housing 10, it is also possible to adopt a configuration in which the driving force of a driving means is applied to each of fixed block 42c and movable block 43a. In this case, it is sufficient to fix shafts 41c of blades 41a, 41b to housing 10. However, such a configuration requires separate driving means for driving fixed block 42c, and the structure for opening and closing blades 41a, 41b becomes complicated.

[0048] In contrast, the cutting device 100 of this embodiment includes a fixed block 42c fixed to the housing 10 and a movable block 43a configured to be rotatable relative to the fixed block 42c and to which a driving force from a cylinder 44 is applied. The blades 41a, 41b are attached to the fixed block 42c and the movable block 43a while being rotatably supported on a shaft 41c. This configuration allows the blades 41a, 41b to be opened and closed by rotating the movable block 43a relative to the fixed block 42c, eliminating the need to apply a driving force to the blade 41a. In other words, the blades 41a, 41b can be opened and closed using the driving force of a single cylinder 44, reducing the manufacturing cost of the cutting device 100 and simplifying the structure for opening and closing the blades 41a, 41b.

[0049] Next, the detailed configuration and cutting operation of the cutting device 100 will be described with reference to Figures 4 to 8. The cutting operation of the cutting device 100 described below is executed in accordance with a control program of a control device (CPU) not shown.

[0050] First, a configuration for displacing the chuck 60 upstream to grip the wire rod 2 will be described with reference to Fig. 4 and Fig. 5. Fig. 4 is a partially enlarged side view of the cutting device 100 as seen in the direction of arrow IV in Fig. 1, and Fig. 5 is a partially enlarged cross-sectional view of the chuck 60 taken along line VV in Fig. 4.

[0051] 4, when starting to cut the wire 2, first, the chuck 60 is displaced upstream (toward the cutting section 40) (arrow B side) of the support members 50, 51 to receive the tip of the wire 2 supplied from the feed roller 20. At this time, the support members 50, 51 are lowered to a lowered position that is off the displacement trajectory of the chuck 60, and therefore, collision between the support members 50, 51 and the chuck 60 is prevented.

[0052] The displacement of the chuck 60 is guided by a slide mechanism 90 provided on the ceiling surface inside the housing 10. The slide mechanism 90 extends in the supply direction of the wire 2 (the direction of the arrow FB) and has a drive source (not shown) that applies a driving force to the chuck 60. Note that a known configuration can be adopted for the slide mechanism 90, and detailed description thereof will be omitted, but examples include a configuration using a linear guide or a cylinder (actuator) (or a configuration combining these).

[0053] The chuck 60 includes a main body 61 slidably supported by the slide mechanism 90, and an arm 62 for gripping the tip of the wire 2 protrudes downward from the main body 61.

[0054] 5, a pair of arms 62 of the chuck 60 are provided on the left and right sides to sandwich the wire rod 2, and a clamping portion 63 for clamping the wire rod 2 is fixed to the inner surface (the surface facing the wire rod 2) of each of the pair of arms 62. A recess 64 having a V-shaped cross section is formed on the inner surface of each of the pair of left and right clamping portions 63.

[0055] Each of the pair of left and right arms 62 is slidably suspended from a rail 65 formed on the underside of the main body 61. The rail 65 extends in the left-right direction, and is configured so that when a driving force from a driving source (not shown) is applied to the arm 62, the arm 62 can be displaced between an open position (state shown in FIG. 5(a)) in which the clamping portion 63 is separated from the wire 2, and a clamping position (state shown in FIG. 5(b)) in which the wire 2 is clamped by the clamping portion 63 (recess 64).

[0056] As shown in Fig. 4, a contact plate 66, which is in contact with the tip of the wire 2, protrudes downward from the main body 61 downstream of the arm 62 (on the side of arrow F). A sensor S1 is fixed to the contact surface (the surface facing the side of arrow B) of the contact plate 66 with which the wire 2 comes in contact, and this sensor S1 detects whether or not the tip of the wire 2 is present.

[0057] When the wire 2 is gripped by the chuck 60, the pair of arms 62 are opened, and the wire 2 is fed by the feed rollers 20 toward the contact plate 66. When the leading end of the wire 2 is detected by the sensor S1 of the contact plate 66 during this feeding, the feed rollers 20 are stopped and the wire 2 is clamped by the pair of arms 62 (clamping portions 63). This allows the wire 2 to be gripped by the chuck 60.

[0058] Next, an operation of drawing out the wire rod 2 to the cutting position by the chuck 60 will be described with reference to Fig. 6. Fig. 6 is a partially enlarged side view of the cutting device 100 showing how the wire rod 2 is drawn out to the downstream side by the chuck 60 from the state of Fig. 4.

[0059] 6, when the wire rod 2 is pulled out to the cutting position, the chuck 60 is displaced downstream of the support members 50, 51 while driving the feed roller 20 in a state where the wire rod 2 is clamped by the chuck 60. Then, the wire rod 2 pulled out to the cutting position is supported by the support members 50, 51, thereby creating a state where the wire rod 2 can be cut (the state shown in FIG. 1).

[0060] Here, the support members 50, 51 that support the wire rod 2 during cutting support the wire rod 2 in a state in which the upper surface side of the wire rod 2 is open. That is, the wire rod 2 is simply placed on the support members 50, 51. This is because, as will be described in detail later, the support members 50, 51 are lowered from the support positions that support the wire rod 2 after cutting, and the wire rod 2 is discharged to the side of the support members 50, 51 by the chute 70 (see FIG. 8). In this way, since the wire rod 2 is supported by the support members 50, 51 in a state in which the upper surface side of the wire rod 2 is open, it becomes easy to discharge the wire rod 2 to the side of the support members 50, 51. However, there is a risk that the wire rod 2 may move due to the force of cutting by the cutting unit 40 and fall from the support members 50, 51.

[0061] In contrast to this, in this embodiment, the chuck 60 is disposed downstream of the support members 50, 51 when cutting the wire rod 2 and clamps the tip of the wire rod 2, so that the wire rod 2 can be cut with the tip of the wire rod 2 fixed by the chuck 60. As a result, even when the wire rod 2 is supported by the support members 50, 51 with the upper surface side of the wire rod 2 open, the stability of the wire rod 2 during cutting can be ensured, so that the wire rod 2 can be cut appropriately.

[0062] Furthermore, the chuck 60 moves in the feeding direction of the wire rod 2 between a receiving position where it receives the tip of the wire rod 2 fed from the feed roller 20 and a cutting position where it pulls out the wire rod 2 from the receiving position and cuts it, so that the wire rod 2 can be pulled out linearly to the cutting position. This makes it possible to prevent bending of the wire rod 2 pulled out to the cutting position, and therefore makes it easier to cut the wire rod 2 to a desired length.

[0063] Furthermore, since the support members 50, 51 are lowered to the lowered position when the chuck 60 moves between the receiving position and the cutting position, it is possible to prevent the support members 50, 51 from interfering with the movement of the chuck 60. Furthermore, for example, by displacing the support members 50, 51 (or only the support member 51) to the lowered position, the wire 2 can be cut with the chuck 60 positioned upstream (on the side of arrow B) of the support members 50, 51. Therefore, the wire 2 can be cut to various lengths.

[0064] Here, the displacement of the chuck 60 from the receiving position toward the cutting position is detected by sensors S2 and S3. Sensor S2 is disposed downstream of the support member 50, and sensor S3 is disposed downstream of the support member 51. When the displacement of the chuck 60 from the receiving position toward the cutting position of the wire rod 2 is detected by sensor S2, the upstream support member 50, which has descended to the descending position, starts to rise toward the support position where it supports the wire rod 2. When the displacement of the chuck 60 is detected by sensor S3, the downstream support member 51, which has descended to the descending position, starts to rise toward the support position.

[0065] That is, when the chuck 60 is displaced from the receiving position to the cutting position of the wire rod 2, the support members 50, 51 start to rise to the supporting position before the chuck 60 reaches the cutting position. As a result, the wire rod 2 can be supported by the support members 50, 51 before the wire rod 2 being pulled out by the chuck 60 reaches the cutting position, and bending of the wire rod 2 due to its own weight when being pulled out can be suppressed. Therefore, the wire rod 2 can be easily cut to the desired length.

[0066] Next, with reference to Figures 7 and 8, an operation of discharging the wire rod 2 from the chute 70 into the storage box 80 after cutting will be described. Figure 7 is a partially enlarged side view of the cutting device 100 showing a state in which the wire rod 2 after cutting is further pulled out downstream by the chuck 60. Figure 8(a) is a partially enlarged cross-sectional view of the cutting device 100 taken along line VIIIa-VIIIa in Figure 7, and Figure 8(b) is a partially enlarged cross-sectional view of the cutting device 100 showing a state in which the wire rod 2 is discharged toward the storage box 80 from the state of Figure 8(a).

[0067] 7 and 8, after the wire rod 2 is cut by the cutting section 40, the chuck 60 gripping the tip of the wire rod 2 is displaced further downstream (toward the arrow F). This is because the chute 70 is disposed downstream of the blades 41a, 41b of the cutting section 40 in the supply direction of the wire rod 2. After the cut wire rod 2 is pulled out by the chuck 60 to a position where the entire wire rod 2 is placed on the upper surface of the chute 70, the clamping state of the wire rod 2 by the arms 62 (clamping section 63) of the chuck 60 is released, and the support members 50, 51 are lowered to the lowered position (see FIG. 8).

[0068] A chute 70 is provided on the side of the support members 50, 51 (the side of arrow R in FIG. 8) for discharging the cut wire rod 2 from the support members 50, 51 to the storage box 80. The chute 70 is a plate that slopes downward while its upper surface protrudes to the side of the support members 50, 51, and a pair of notches 71, 72 (see FIG. 7 for notch 72) are formed at the upper end of the chute 70 (the end on the support members 50, 51 side) at a predetermined distance in the supply direction of the wire rod 2.

[0069] The support members 50, 51 are inserted into these notches 71, 72. The support members 50, 51 are configured to be movable up and down between a support position (the state shown in FIG. 8(a)) for supporting the wire 2 during cutting and a lowered position (the state shown in FIG. 8(b)) for placing the cut wire 2 on the upper surface of the chute 70. Therefore, by lowering the support members 50, 51 to the lowered position after cutting the wire 2, the wire 2 is caught on the upper surface of the chute 70 (a region where the notches 71, 72 are not formed).

[0070] A support part 52 (see FIG. 8) having a V-shaped recess on its upper surface is fixed to the upper ends of the support members 50, 51, and this support part 52 supports the wire 2 with the upper surface open. The upper surface of the chute 70 is inclined downward from the notches 71, 72 toward the side of the support members 50, 51, so that the wire 2 caught on the upper surface of the chute 70 falls from the support members 50, 51 and slides down the upper surface of the chute 70. A storage box 80 is disposed adjacent to the side of the chute 70 (the opposite side to the support members 50, 51), so that the wire 2 that slides down the chute 70 is stored in the storage box 80.

[0071] As described above, in this embodiment, the wire rod 2 is discharged to the side of the support members 50, 51. However, as a technology relating to such side discharge of the wire rod 2, for example, the technology disclosed in Japanese Utility Model Laid-Open Publication No. 54-101684 is known. In this technology, the support member (angle iron 31) that supports the cut wire rod (steel material 3) is rotated by the driving force of the driving means (jack 25), causing the wire rod to slide down the chute (bottom wall 35 of the bunker 17) and be discharged to the side. In a configuration like this technology in which the linear motion of the driving means is converted into the rotation of the support member, the structure for discharging the wire rod becomes complicated.

[0072] In contrast to this, in this embodiment, as described above, the wire 2 is discharged by utilizing the vertical movement (linear motion) of the support members 50, 51, and therefore the structure of the cutting device 100 can be simplified compared to when the wire is discharged by rotating the support members as in the above-mentioned publicly known technology.

[0073] Furthermore, when the wire rod 2 is discharged onto the chute 70, the chuck 60 pulls out the cut wire rod 2 until the entire wire rod 2 is placed on the upper surface of the chute 70, and then the clamping state of the wire rod 2 by the chuck 60 is released, so that it is possible to prevent a part of the wire rod 2 from sliding down while protruding from the chute 70. This makes it possible to stabilize the posture of the wire rod 2 when it slides down along the upper surface of the chute 70. That is, since the wire rod 2 is easily discharged into the storage box 80 while maintaining a state of being straight along the feeding direction, when a plurality of wire rods 2 are repeatedly cut, the wire rods 2 can be stored in the storage box 80 in an aligned state (see FIG. 8).

[0074] Next, a cutting device 200 of a second embodiment will be described with reference to Figures 9 and 10. In the above-described first embodiment, a case where cutting of the wire rod 2 is executed (automatically) by a control program of a control device has been described, but in the cutting device 200 of the second embodiment, a case where the wire rod 2 is cut by an operation of an operator will be described. Note that the same parts as those in the above-described first embodiment are given the same reference numerals, and description thereof will be omitted.

[0075] Fig. 9 is a perspective view of the cutting device 200 in the second embodiment, and Fig. 10 is a top view of the cutting device 200 as viewed in the direction of arrow X in Fig. 9. Note that Fig. 10 illustrates a state in which the support member 219 located on the downstream side (the side of arrow F) of the pair of support members 219 has been retracted to a retracted position.

[0076] 9 and 10, the cutting device 200 of the second embodiment includes a box-shaped housing 210 that houses the cutting unit 40. The wire 2 is supplied to the cutting unit 40 in the housing 210 by an operator manually pulling out the wire 2 wound around the drum 1 (see FIG. 1).

[0077] 9 and 10, arrow FB indicates the supply direction of the wire rod 2, LR indicates the horizontal direction (left-right direction) perpendicular to the supply direction of the wire rod 2, and UD indicates the up-down direction. Note that the front side (arrow F side) in the supply direction of the wire rod 2 is the downstream side, and the rear side (arrow B side) in the supply direction is the upstream side.

[0078] A guide tube 12 penetrates a wall 213 on the downstream side (arrow F side) of the housing 210 in the supply direction of the wire 2. The wire 2 that has passed through the cutting section 40 (between the blades 41a, 41b) and the guide tube 12 is cut by the blades 41a, 41b while being pulled out onto the work table 214.

[0079] The workbench 214 is provided adjacent to the wall 213 of the housing 210, and an operation button 215 is provided on the lateral side (the side of the arrow L) of the workbench 214 where the worker stands to perform work. By pressing this operation button 215, the blades 41a and 41b are opened and closed by the driving force of the cylinder 44 of the cutting unit 40, and the wire 2 is cut by the opening and closing of the blades 41a and 41b.

[0080] As in the first embodiment, the blades 41a and 41b are detachably fixed to the handles 3a and 3b (see FIG. 3) of the hand tool 3. Therefore, the wire 2 can be appropriately cut using the blades 41a and 41b of the hand tool 3.

[0081] A rail 216 (see the enlarged portion of FIG. 9 or FIG. 10) is fixed to the top surface of the workbench 214 closer to the center (the arrow R side) than the operation button 215, along the supply direction of the wire 2, and a block 217 is slidably supported on the rail 216. That is, the rail 216 and the block 217 constitute a linear guide mechanism.

[0082] A support portion 217a that supports the wire 2 from below and a contact plate 217b that comes into contact with the tip of the wire 2 downstream of the support portion 217a are fixed to the upper surface of the block 217. The support portion 217a has the same configuration as the support portion 52 (see FIG. 8) of the first embodiment described above.

[0083] A tape measure 218 is fixed to the upper surface of the workbench 214 for measuring the cut length of the wire 2 from the relative position of the block 217 with respect to the rail 216. The tape measure 218 extends parallel to the rail 216, and a needle 217c pointing to the scale of the tape measure 218 protrudes downward from the side surface of the block 217. The scale of the tape measure 218 pointed to by the needle 217c is configured to indicate the cut length of the wire 2 when the tip of the wire 2 is cut with the tip in contact with the contact plate 217b.

[0084] As described above, the work table 214 of the cutting device 200 of this embodiment includes the rail 216 extending from the blades 41a and 41b toward the downstream side, the block 217 slidably supported on the rail 216 and supporting the tip of the wire rod 2, and the needle 217c (measure 218) for measuring the cutting length of the wire rod 2 from the position of the block 217. Therefore, by adjusting the position of the block 217 relative to the rail 216, an operator can measure the cutting length when the tip of the wire rod 2 is supported by the block 217 using the needle 217c. As a result, the operator can cut the wire rod 2 to the desired length by instructing the start of cutting the wire rod 2 using the operation button 215 after setting the cutting length of the wire rod 2 measured by the needle 217c to the desired length. This improves the workability of the wire rod 2 cutting operation.

[0085] The block 217 is provided with a lever 217d for fixing the relative position of the block 217 with respect to the rail 216. A known structure can be used for fixing and unlocking the block 217 with the lever 217d, and detailed description thereof will be omitted. However, by rotating the lever 217d, the brake shoe fixed to the block 217 is brought into contact with or separated from the rail 216.

[0086] By operating this lever 217d, the worker can cut the wire 2 while fixing the position of the block 217 relative to the rail 216, i.e., the cutting length of the wire 2 measured by the needle 217c (measurement tape 218). Therefore, by repeatedly cutting a plurality of wires 2 while fixing the block 217 with the lever 217d, a plurality of wires 2 of the same length can be easily produced.

[0087] In this manner, in this embodiment, the cutting length of the wire rod 2 can be changed by adjusting the position of the block 217 along the rail 216. Therefore, when cutting a relatively long wire rod 2, the wire rod 2 on the rail 216 is supported by the support member 219, while when cutting a short wire rod 2, the support member 219 can be retracted from the rail 216 (see FIG. 10).

[0088] Specifically, a cylindrical support 219a (see FIG. 10) of the support member 219 is fixed to the upper surface of the workbench 214, and a clamp 219b is rotatably fitted into this support 219a. A handle 219c is provided on the clamp 219b, and by operating the handle 219c, the clamp 219b can be fixed to and released from the support 219a.

[0089] A support part 219d is fixed to the tip of the clamp 219b (the end opposite to the support post 219a). This support part 219d has the same configuration as the support part 52 (see FIG. 3) of the first embodiment described above.

[0090] The support members 219 are arranged in parallel with the rails 216 along the conveying direction of the wire 2 (two in this embodiment), and the wire 2 can be supported by the support portions 219d of these support members 219.

[0091] Therefore, by supporting the tip of the wire 2 on the block 217 arranged downstream of each support member 219 and supporting the wire 2 on the support member 219 (support portion 219d) located between the blades 41a, 41b and the block 217, it is possible to restrict bending of the wire 2 due to its own weight by the support member 219. Therefore, it becomes easier to cut the wire 2 to the desired length.

[0092] Furthermore, by rotating the clamp 219b, which has been released from the fixed state by the handle 219c, relative to the support 219a, the support portion 219d can be retracted from the rail 216.

[0093] That is, the support portion 219d of the support member 219 is configured to be displaceable between a support position where the support portion 219d supports the wire rod 2 on the rail 216 and a retracted position that is out of the displacement locus of the block 217 on the rail 216. Therefore, as shown in Fig. 10, by retracting the support portion 219d from the displacement locus of the block 217, the wire rod 2 can be cut in a state where the block 217 is located upstream of the support member 219. Therefore, the wire rod 2 can be cut to various lengths.

[0094] Furthermore, since the support pillar 219a of the support member 219 is disposed on the opposite side of the rail 216 from the operation button 215, the support part 219d can be retracted to the side opposite to the side where the worker works. This prevents the support part 219d retracted from the rail 216 from interfering with the worker's work, thereby improving the workability of the cutting work of the wire rod 2.

[0095] The present invention has been described above based on the above embodiment, but the present invention is not limited to the above embodiment, and it can be easily inferred that various modifications and improvements are possible within the scope of the present invention.

[0096] In the above embodiments, the pair of blades 41a, 41b are opened and closed by rotating around the shaft 41c, but this is not necessarily limited to this. For example, the pair of blades may be opened and closed by linear movement of each other (or one of them).

[0097] In the above-described embodiments, the driving force is applied to one blade 41b of the pair of blades 41a, 41b, but this is not necessarily limited to this. For example, the driving force of the driving means may be applied to each of the pair of blades 41a, 41b (fixed block 42c and movable block 43a).

[0098] In each of the above embodiments, a cylinder 44 (air cylinder) was given as an example of a driving means for applying a driving force to the blades 41a, 41b, but the blades 41a, 41b may also be opened and closed by the driving force of other actuators such as a hydraulic cylinder or a motor.

[0099] In the above-described embodiments, a case has been described in which a plurality of support members 50, 51, 219 are provided along the conveying direction of the wire rod 2, but this is not necessarily limited to this. For example, the wire rod 2 may be supported by one support member 50, 51, 219 formed in a trough shape extending in the conveying direction of the wire rod 2, or the support member 50, 51, 219 may be omitted.

[0100] In the above embodiments, when the chuck 60 is displaced toward the cutting position, the support members 50, 51 start to rise before the chuck 60 reaches the cutting position, but this is not necessarily limited to this. For example, the support members 50, 51 may start to rise when the chuck 60 reaches the cutting position or after it reaches the cutting position.

[0101] In the first embodiment, the feed roller 20 is used as an example of the feeding means for feeding the wire 2 between the blades 41a and 41b, but the present invention is not limited to this. For example, the wire 2 may be fed by another known feeding device such as a belt conveyor.

[0102] In the first embodiment, the case where the tip of the wire rod 2 is received by the chuck 60 displaced upstream of the support members 50, 51 has been described, but the present invention is not necessarily limited to this. For example, a configuration may be adopted in which the wire rod 2 is supplied toward the support members 50, 51 formed in a trough or cylindrical shape extending in the supply direction of the wire rod 2, and the tip of the wire rod 2 is received by the chuck 60 downstream of the support members 50, 51. In this case, a configuration may be adopted in which the tip of the wire rod 2 is pulled out by the chuck 60 displaced downstream of the support members 50, 51, or a configuration in which the tip of the wire rod 2 is simply received by the non-displaceable chuck 60.

[0103] Furthermore, when the support members 50, 51 are formed in a gutter-like or cylindrical shape extending in the supply direction of the wire 2, the chuck 60 for gripping the tip of the wire 2 may be omitted, and the wire 2 may simply be cut while placed on the support members 50, 51.

[0104] In the first embodiment, the support members 50, 51 are described as being displaceable up and down, but this is not necessarily limited to this. For example, the support members 50, 51 may be configured to be unable to be displaced up and down. In this case, the shape of the support members 50, 51 or the chuck 60 may be adjusted so that the support members 50, 51 do not interfere with the displacement of the chuck 60.

[0105] In the first embodiment, the wire rod 2 is discharged from the chute 70 by utilizing the downward movement of the support members 50, 51, but this is not necessarily limited to this. For example, the wire rod 2 may be dropped into the chute 70 by the power that rotates the support members 50, 51 (support portion 52). Also, a separate discharge device may be provided that is capable of pushing the wire rod 2 placed on the support members 50, 51 toward the chute 70 or grabbing the wire rod 2 and dropping it into the chute 70. In these configurations, the notches 71, 72 of the chute 70 may be omitted.

[0106] In the first embodiment, the support members 50, 51 are inserted into the notches 71, 72 formed at the end of the plate-shaped chute 70, but this is not necessarily limited to this. For example, the support members 50, 51 may be inserted into through-holes that penetrate the chute 70. Furthermore, the chute 70 may be mesh-shaped or fence-shaped instead of plate-shaped.

[0107] In the first embodiment, the case where the wire rod 2 is discharged to the side of the support members 50, 51 by the chute 70 has been described, but the present invention is not necessarily limited to this. For example, the chute 70 may be provided downstream of the support members 50, 51. In this case, after cutting the wire rod 2, only the support member 51 may be lowered to drop into the chute 70, or the wire rod 2 may be pulled out by the chuck 60 to a position where it can be placed on the chute 70.

[0108] In the second embodiment, the operation button 215 is used as an example of an instruction means for instructing the blades 41a and 41b to start cutting, but this is not necessarily limited to this. For example, other known means such as a foot pedal may also be used.

[0109] In the second embodiment, the wire rod 2 is supplied between the blades 41a and 41b by the operator manually pulling out the wire rod 2, but this is not necessarily limited to this. For example, the wire rod 2 may be supplied by the supply means (feed roller 20) as in the first embodiment, and a supply instruction means (such as an operation button) for the operator to instruct the supply and stop of the supply may be provided on the work table 214.

[0110] In the second embodiment, the needle 217c and the tape measure 218 are exemplified as an example of a measuring means for measuring the relative position of the block 217 with respect to the rail 216 (the cutting length of the wire 2), but the present invention is not necessarily limited to this. For example, the position of the block 217 (the cutting length of the wire 2) may be measured using a device for digitally measuring (digitally displaying) the relative position of the block 217 with respect to the rail 216, a linear encoder, or the like.

[0111] In the second embodiment, the case where the support portion 219d of the support member 219 can be retracted to a position away from the rail 216 has been described, but this is not necessarily limited to this. For example, the support portion 219d of the support member 219 may be configured to be immovable, and the block 217 may be displaced only in the region downstream of the support member 219.

[0112] In the second embodiment, the rotation of the clamp 219b around the support post 219a causes the support portion 219d to retreat from the rail 216, but this is not necessarily limited to this. For example, the support portion 219d may be slid by a member that guides linear motion, such as a linear guide mechanism, and the support portion 219d may be retreated from the rail 216 by this sliding displacement.

[0113] In the second embodiment described above, the retracted position of the support portion 219d is on the opposite side of the rail 216 from the operation button 215, but this is not necessarily limited to this. For example, the support portion 219d may be retracted to the operation button 215 side, or the support pillar 219a may be formed tall so that the support portion 219d is retracted above the displacement trajectory of the block 217.

[0114] In the second embodiment, the relative position of the block 217 with respect to the rail 216 is fixed by operating the lever 217d, but this is not necessarily limited to this. For example, the relative position of the block 217 with respect to the rail 216 may not be fixable. [Explanation of symbols]

[0115] 100,200 cutting equipment 2 wire rod 3 hand tools 3a,3b pattern 10. Cabinet 20 Feed roller 20 (supply means) 41a, 41b blade 42,43 Mounting part 42c Fixed block (fixed mounting part) 43a Movable block (movable mounting part) 44 Cylinder (drive means) 50,51 Support member 60 Chuck 70 shots 71,72 Notch (insertion part) 80 Storage Box 214 Workbench 216 Rail 217 blocks 217c needle (measurement means) 218 Measure (Means of measurement) 219 Support member

Claims

1. A cutting device for cutting wire using the blades of a hand tool having a pair of handles and a pair of blades detachably attached to the tip ends of the pair of handles and opened and closed by operating the pair of handles, a mounting portion to which the pair of blades are attached in an openable and closable state; a drive means for applying a drive force to the mounting portion to open and close the pair of blades; a supply means for supplying the wire rod between the pair of blades; a support member that is arranged downstream of the blades in the supply direction of the wire rod by the supply means and supports the wire rod with the upper surface side of the wire rod open; and a chute that has an insertion portion into which the support member is inserted and whose upper surface slopes downward from the insertion portion toward the side of the support member, The blade is detachable from the attachment portion, The cutting device is characterized in that the support member is configured to be displaceable up and down between a support position where it supports the wire during cutting and a lowered position where it places the cut wire on the upper surface of the chute.

2. A cutting device for cutting wire using the blades of a hand tool having a pair of handles and a pair of blades that are detachably attached to the tip ends of the pair of handles and that open and close when the pair of handles are operated, The method comprises: a mounting portion to which the pair of blades are attached in an openable and closable state; and a driving means for applying a driving force to the mounting portion to open and close the pair of blades; the mounting portion includes a fixed mounting portion fixed to a housing of the cutting device, and a movable mounting portion configured to be rotatable relative to the fixed mounting portion and to which the driving force of the driving means is applied; The pair of blades are detachably attached to the fixed attachment portion and the movable attachment portion while being rotatably supported relative to each other.

3. A cutting device for cutting wire using the blades of a hand tool having a pair of handles and a pair of blades that are detachably attached to the tip ends of the pair of handles and that open and close when the pair of handles are operated, a mounting portion to which the pair of blades are attached in an openable and closable state; a driving means for applying a driving force to the mounting portion to open and close the pair of blades; and a workbench that is arranged downstream of the blades in the supply direction of the wire rod toward the pair of blades and on which an operator performs an operation of cutting the wire rod, The blade is detachable from the attachment portion, the work table comprises: a rail extending from the blade side toward the downstream side along the supply direction; a block slidably supported on the rail and supporting the tip of the wire; measuring means for measuring the cut length of the wire based on the relative position of the block with respect to the rail; and indicating means operable by the operator for instructing the start of cutting of the wire with the pair of blades.

4. 3. The cutting device according to claim 1, further comprising a chuck that is disposed downstream of the support member and that clamps the tip of the wire when the wire is cut.

5. The cutting device according to claim 4, characterized in that the chuck is configured to be displaceable in the supply direction between a receiving position where the tip of the wire is received upstream of the support member in the supply direction, and a cutting position where the tip of the wire received at the receiving position is pulled downstream of the support member and cut.

6. 6. The cutting device according to claim 5, wherein the support member is lowered to the lowered position when the chuck moves between the receiving position and the cutting position.

7. 7. The cutting device according to claim 6, wherein when the chuck moves from the receiving position to the cutting position, the support member starts to rise toward the support position before the chuck reaches the cutting position.

8. a receiving box for receiving the wire rod discharged from the chute; The chute is disposed downstream of the blade, A cutting device as described in any one of claims 5 to 7, characterized in that after the wire rod after cutting is pulled out by the chuck to a position where the entire wire rod is placed on the upper surface of the chute, the clamping state of the wire rod by the chuck is released.

9. a support member for supporting the wire rod between the blade and the block in the feeding direction; the rail extends upstream of the support member in the supply direction, 4. The cutting device according to claim 3, wherein the support member is configured to be displaceable between a support position where the support member supports the wire rod on the rail and a retracted position where the support member retracts from the rail.

10. 10. The cutting device according to claim 9, wherein the retracted position is on the opposite side of the rail from the indicating means.

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