Automatic cable tie fastening device

Abstract

This invention provides an automatic cable tie fastening device for harnesses that use a wide variety of cable ties. [Solution] The device comprises a holder 1, a base 2, a first guide part 3 including a first guide part and provided on the base 2 on the opposite side of the holder 1 from the base 2, a second guide part 4 including a second guide part and provided on the same side of the base 2 as the holder 1 from the base 2, and a third guide part 5 including a third guide part and provided below the second guide part 4. When the first guide part is slid along the base toward the holder, the band part is input, the direction of the band part is reversed, and it is guided toward the second guide part. When the band part guided by the first guide part is input, the second guide part changes the direction of the band part by approximately 90 degrees and guides it downward toward the third guide part. When the band part guided by the second guide part is input, the third guide part guides the band part toward the hole of the lock part.

Description

Technical Field

[0001] The present invention relates to an automatic binding band tightening device.

Background Art

[0002] Binding bands are used to bundle a plurality of electric wires arranged inside electronic equipment. Currently, in many manufacturing sites, the work of bundling and tightening harnesses with binding bands is performed manually. In view of improving work efficiency and reducing the burden on workers, it is desirable to automate the tightening of binding bands.

[0003] Patent Document 1 discloses a binding band fixing structure that can bundle and fix electric wires to a housing of electronic equipment with a narrow space.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of Invention

Problems to be Solved by the Invention

[0005] The fixing structure disclosed in Patent Document 1 can only be applied to binding bands dedicated to the fixing structure, and the tightening of the binding band also needs to be performed manually. For this reason, with this fixing structure, it is difficult to automate binding band tightening for harnesses that use a wide variety of binding bands.

[0006] The present invention has been made in view of such problems, and an object thereof is to automate the tightening of binding bands for harnesses that use a wide variety of binding bands.

Means for Solving the Problems

[0007] To solve the above problems, an automatic cable tie fastening device according to one aspect of the present invention comprises a holder, a base, a first guide component including a first guide portion and provided on the side of the base opposite to the holder, a second guide component including a second guide portion and provided on the same side of the base as the holder, and a third guide component including a third guide portion and provided below the second guide component. The holder fixes the locking portion of the cable tie so that the hole of the locking portion faces upward. The base extends in the longitudinal direction of the cable tie and supports the band portion of the cable tie. The first guide component is slidable along the base. The third guide component is slidable in a direction perpendicular to the base in a horizontal plane. When the first guide portion is slid along the base toward the holder, the band portion is input, the orientation of the band portion is reversed, and it is guided toward the second guide portion. When the band section guided by the first guide section is input to the second guide section, the second guide section changes the orientation of the band section by approximately 90 degrees and guides it downward toward the third guide section. When the band section guided by the second guide section is input to the third guide section, the third guide section guides the band section toward the hole in the lock section.

[0008] In one embodiment, the third guide component may be adjustable so that the band portion guided by the second guide component fits into the hole of the locking portion by sliding in a direction perpendicular to the base in a horizontal plane.

[0009] In one embodiment, the first guide portion may be substantially semicircular in shape when viewed from the side.

[0010] In one embodiment, the second guide portion may have a substantially quarter-circle shape when viewed from the side.

[0011] In one embodiment, the second guide component and the third guide component may be integrated and removable from the holder.

[0012] In one embodiment, the holder may have a pivot axis extending in a direction perpendicular to the base in the horizontal plane. The second and third guide components are integrated and can be opened and closed relative to the holder by rotating around the pivot axis.

[0013] In one embodiment, the first guide component may be manually slidable along the base.

[0014] In one embodiment, the automatic cable tie fastening device may include an air cylinder that slides a first guide component along a base.

[0015] In one embodiment, the automatic cable tie fastening device may include a chucking section that grips the band portion output downward from the third guide section.

[0016] In one embodiment, the automatic cable tie fastening device may include an air cylinder that moves the chucking part up and down.

[0017] In one embodiment, the automatic cable tie fastening device may include nippers for cutting the band portion that is output downward from the third guide portion.

[0018] Furthermore, any combination of the above components, as well as conversions of the expression of the present invention between devices, methods, systems, recording media, computer programs, etc., are also valid embodiments of the present invention. [Effects of the Invention]

[0019] According to the present invention, the tightening of cable ties can be automated in harnesses that use a wide variety of cable ties. [Brief explanation of the drawing]

[0020] [Figure 1] This is a schematic diagram of a cable tie. [Figure 2] This is a perspective view of an automatic cable tie fastening device according to an embodiment. [Figure 3]It is a side view of the holder. [Figure 4] It is a side view of the base. [Figure 5] It is a side view of the base and the first guide component. [Figure 6] It is a plan view of the first guide component. [Figure 7] It is an A-A cross-sectional view of the first guide component. [Figure 8] It is a side view of the holder, the second guide component, and the third guide component. [Figure 9] It is a plan view of the second guide component. [Figure 10] It is a B-B cross-sectional view of the second guide component. [Figure 11] It is a plan view of the third guide component. [Figure 12] It is a C-C cross-sectional view of the third guide component. [Figure 13] It is a plan view of the third guide component, and is a diagram showing a state in which the third guide component slides in the y direction. [Figure 14] It is a diagram showing the automatic binding band tightening device when the first guide component is in an initial state. [Figure 15] It is a diagram showing the automatic binding band tightening device when the first guide component is in an intermediate state. [Figure 16] It is a diagram showing the automatic binding band tightening device when the first guide component is in a final state. [Figure 17] It is a side view of the holder provided with a rotating shaft, the second guide component, and the third guide component. [Figure 18] It is a plan view of the automatic binding band tightening device provided with an air cylinder that slides the first guide component along the base. [Figure 19] It is a diagram showing the entire facility incorporating the automatic binding band tightening device according to the embodiment. [Figure 20] It is a diagram showing the entire facility incorporating the automatic binding band tightening device provided with a chucking portion, an air cylinder for moving the chucking portion, and a nipper. [Modes for carrying out the invention]

[0021] The present invention will be described below with reference to the drawings, based on preferred embodiments. The embodiments are illustrative and not limiting, and not all features or combinations thereof described in the embodiments are necessarily essential to the invention. The same or equivalent components, members, and processes shown in each drawing are denoted by the same reference numerals, and redundant explanations are omitted as appropriate. Furthermore, the scale and shape of each part shown in each drawing are set for convenience to facilitate explanation and are not to be interpreted restrictively unless otherwise specified. In addition, when terms such as "first," "second," etc. are used in this specification or claims, unless otherwise specified, these terms do not indicate any order or importance, but are merely for distinguishing one configuration from another. Furthermore, some components that are not important for explaining the embodiments are omitted from the drawings.

[0022] Figure 1 is a schematic diagram of the cable tie 20. Figure 1(a) is a top view of the cable tie 20 in an unfastened state. Figure 1(b) is a side view of the cable tie 20 fastened into a ring. The cable tie 20 is made of a strong and flexible material such as plastic, nylon, polypropylene, or stainless steel. The cable tie 20 consists of a band portion 21 and a locking portion 22 provided at one end of the band portion 21.

[0023] The locking portion 22 has a hole 23 through which the band portion 21 passes. The cable tie 20 can be tightened by passing the end 24 of the band portion 21 opposite to the locking portion 22 through the hole 23 and pulling it. The band portion 21 has tooth-shaped notches 25 engraved on it. These notches 25 engage with the hole 23 of the locking portion 22, preventing the band portion 21 from returning in the reverse direction, and once tightened, the cable tie 20 will not loosen. After fastening the cable tie 20, any excess portion of the band portion 21 may be cut off with wire cutters or the like.

[0024] Figure 2 is a perspective view of the automatic cable tie fastening device 100 according to an embodiment. The automatic cable tie fastening device 100 comprises a holder 1, a base 2, a first guide part 3, a second guide part 4, and a third guide part 5. Hereinafter, the x, y, and z directions will be defined as shown in Figure 2. The xy plane will be called the top surface, the yz plane the front surface, and the zx plane the side surface.

[0025] The first guide component 3 is provided on the base 2 on the side opposite to the holder 1. On the other hand, the second guide component 4 is provided on the same side as the holder 1 to the base 2. The third guide component 5 is provided below the second guide component 4.

[0026] Figure 3 is a side view of the holder 1. The holder 1 fixes the locking portion 22 of the cable tie 20 so that the hole 23 of the locking portion 22 faces upward. Figure 3 shows the locking portion 22 of the cable tie 20 fixed to the holder 1.

[0027] Figure 4 is a side view of the base 2. The base 2 extends along the length of the cable tie 20 and supports the band portion 21 of the cable tie 20. Figure 4 shows the band portion 21 supported by the base 2. By supporting the band portion 21 with the base 2, it is possible to prevent the band portion 21 from bending too much, as shown by the dashed line.

[0028] Figure 5 is a side view of the base 2 and the first guide part 3. Figure 6 is a top view of the first guide part 3. Figure 7 is a cross-sectional view AA of the first guide part 3.

[0029] Referring to Figures 5 and 7, the first guide component 3 includes a first guide section 3a. The first guide section 3a further includes an inlet 3b and an outlet 3c.

[0030] The first guide part 3 is slidable along the base 2 (i.e., in the x-direction) (see also Figure 2).

[0031] The end 24 of the cable tie 20 is input to the inlet 3b of the first guide section 3a. In this state, the first guide component 3 is slid along the base 2 toward the holder 1 (i.e., in the +x direction). Then, the band portion 21 of the cable tie 20 is guided along the wall surface of the first guide section 3a. When the first guide component 3 is slid further along the base 2 toward the holder 1, the orientation of the band portion 21 reverses from the direction facing the first guide component 3 from the holder 1 (i.e., the -x direction) to the direction facing the holder 1 from the first guide component 3 (i.e., the +x direction). When the first guide component 3 is slid further along the base 2 toward the holder 1, the end 24 of the cable tie 20 is output from the outlet 3c of the first guide section 3a. In this way, the first guide portion 3a receives the band portion 21 when the first guide component 3 slides along the base 2 toward the holder 1, and then reverses the orientation of the band portion 21 to guide toward the second guide portion 4a.

[0032] In the example shown in Figure 7, the exit 3c is angled slightly downward so as to properly guide the band section 21 toward the second guide section 4a.

[0033] Figure 8 is a side view of the holder 1, the second guide part 4, and the third guide part 5. Figure 9 is a top view of the second guide part 4. Figure 10 is a cross-sectional view of the second guide part 4 at BB.

[0034] Referring to Figures 8 and 10, the second guide component 4 includes a second guide section 4a. The second guide section 4a further includes an inlet 4b and an outlet 4c.

[0035] The end 24 of the cable tie 20, guided by the first guide part 3a, is input to the inlet 4b of the second guide part 4a. As the first guide part 3 is further slid along the base 2 toward the holder 1, the band portion 21 of the cable tie 20 is guided along the wall surface of the second guide part 4a. As the first guide part 3 is further slid along the base 2 toward the holder 1, the orientation of the band portion 21 changes by approximately 90 degrees from the +x direction to the -z direction, becoming downward. As the first guide part 3 is further slid along the base 2 toward the holder 1, the end 24 of the cable tie 20 is output from the outlet 4c of the second guide part 4a. In this way, when the first guide part 3 is slid along the base 2 toward the holder 1, the second guide part 4a receives the band portion 21, changes the orientation of the band portion 21 by approximately 90 degrees, and guides it downward toward the third guide part 5a.

[0036] Figure 11 is a plan view of the third guide component 5. Figure 12 is a cross-sectional view of the third guide component 5 at cross-section.

[0037] Referring to Figures 8 and 12, the third guide component 5 includes a third guide section 5a. Furthermore, the third guide section 5a includes an inlet 5b and an outlet 5c.

[0038] The end 24 of the cable tie 20, guided by the second guide 4a, is inserted into the entrance 5b of the third guide 5a. As the first guide part 3 is further slid along the base 2 toward the holder 1, the band portion 21 of the cable tie 20 is guided along the wall surface of the third guide part 5a. As the first guide part 3 is further slid along the base 2 toward the holder 1, the band portion 21 is guided toward the hole 23 of the lock portion 22. As the first guide part 3 is further slid along the base 2 toward the holder 1, the end 24 of the cable tie 20 is inserted into the hole 23 of the lock portion 22. As the first guide part 3 is further slid along the base 2 toward the holder 1, the band portion 21 advances through the hole 23, and the cable tie 20 is tightened. In this way, the third guide portion 5a engages the band portion 21 when the first guide component 3 slides along the base 2 toward the holder 1, and guides the band portion 21 toward the hole 23 of the lock portion 22.

[0039] The third guide component 5 is slidable in the horizontal plane in a direction perpendicular to the base 2 (i.e., in the y-direction) (see also Figure 2).

[0040] Figure 13 is a plan view of the third guide component 5, showing how the third guide component 5 slides in the y-direction. By sliding in the y-direction, the third guide component 5 can be adjusted so that the band portion 21, guided by the second guide component 4, fits into the hole 23 of the locking portion 22.

[0041] According to the embodiments described above, the tightening of cable ties can be automated in harnesses that use a wide variety of cable ties.

[0042] The first guide section 3a, the second guide section 4a, and the third guide section 5a should preferably have smooth wall surfaces. If the wall surfaces of the first guide section 3a, the second guide section 4a, and the third guide section 5a are smooth, the band section 21 can be guided smoothly.

[0043] In the example shown in Figure 5, the first guide portion 3a is approximately semicircular when viewed from the side. If the first guide portion 3a is approximately semicircular when viewed from the side, the band portion 21 can be guided even more smoothly toward the second guide portion 4a. However, it is not limited to this, and the first guide portion 3a may be any suitable shape when viewed from the side, such as an ellipse, parabola, or hyperbola.

[0044] In the example shown in Figure 6, the second guide portion 4a is approximately a quadrant when viewed from the side. If the second guide portion 4a is approximately a quadrant when viewed from the side, the band portion 21 can be guided even more smoothly toward the third guide portion 5a. However, it is not limited to this, and the second guide portion 4a may be any suitable shape when viewed from the side, such as an ellipse, parabola, or hyperbola.

[0045] The operation of the automatic cable tie fastening device 100 will be explained below using Figures 14 to 16.

[0046] Figure 14 shows the automatic cable tie fastening device 100 when the first guide component 3 is in the leftmost position (-x direction). Hereafter, this state will be referred to as the initial state.

[0047] In the initial state, the locking portion 22 of the cable tie 20 is fixed to the holder 1 such that the hole 23 of the locking portion 22 of the cable tie 20 faces upward. The band portion 21 of the cable tie 20 is placed on the base 2 and supported by the base 2. At this point, the end 24 of the cable tie 20 is outside the first guide component 3 or on the tip of the entrance 3b of the first guide portion 3a of the first guide component 3.

[0048] From here, the first guide part 3 is slid along the base 2 in the +x direction. As a result, the end 24 of the cable tie 20 is input to the inlet 3b of the first guide part 3a. As the first guide part 3 is slid further, the band portion 21 of the cable tie 20 is guided along the wall surface of the first guide part 3a. As the first guide part 3 is slid further, the orientation of the band portion 21 is reversed from the -x direction to the +x direction. As the first guide part 3 is slid further, the end 24 of the cable tie 20 is output from the outlet 3c of the first guide part 3a.

[0049] When the first guide part 3 is slid further, the end 24 of the cable tie 20 reaches the entrance 4b of the second guide part 4a. Figure 15 shows the state at this point. Hereafter, this state will be referred to as the initial state.

[0050] If the first guide part 3 is slid further from this point, the band portion 21 of the cable tie 20 is guided along the wall surface of the second guide part 4a. If the first guide part 3 is slid further, the orientation of the band portion 21 changes by approximately 90 degrees from the +x direction to the -z direction, becoming downward. If the first guide part 3 is slid further, the end portion 24 of the cable tie 20 is output from the outlet 4c of the second guide part 4a.

[0051] As the first guide part 3 is slid further, the end 24 of the cable tie 20 enters the entrance 5b of the third guide part 5a. As the first guide part 3 is slid further, the band portion 21 of the cable tie 20 is guided along the wall surface of the third guide part 5a. It enters the entrance 5b of the third guide part 5a. As the first guide part 3 is slid further, the band portion 21 is guided toward the hole 23 of the locking portion 22. As the first guide part 3 is slid further, the end 24 of the cable tie 20 is inserted into the hole 23 of the locking portion 22. As the first guide part 3 is slid further, the band portion 21 advances through the hole 23.

[0052] Figure 16 shows the automatic cable tie tightening device 100 when the first guide component 3 is in the rightmost position (+x direction). Hereafter, this state will be referred to as the final state. In the final state, the tightening of the cable tie 20 is completed.

[0053] The cable tie 20, once tightened into a ring shape, is removed from the automatic cable tie tightening device 100. After this, harnesses may be inserted into the ring portion of the cable tie 20, and the cable tie 20 may be further tightened. Alternatively, when the automatic cable tie tightening device 100 is in its initial state, harnesses may be set in a direction perpendicular to the band portion 21 of the cable tie 20, and the cable tie 20, together with the harnesses, may be tightened by the automatic cable tie tightening device 100.

[0054] The second guide part 4 and the third guide part 5 are integrated and may be removable from the holder 1. In this case, in the initial state, the cable tie 20 is fixed to the holder 1 with the second guide part 4 and the third guide part 5 removed from the holder 1. Then, the second guide part 4 and the third guide part 5 are attached to the holder 1, and the first guide part 3 is slid in to tighten the cable tie 20. Once tightening is complete, the second guide part 4 and the third guide part 5 are removed from the holder 1, and the cable tie is taken out.

[0055] According to this embodiment, since the second guide part 4 and the third guide part 5 are removable, the cable tie 20 can be easily fixed to and removed from the holder 1.

[0056] In another embodiment, the holder 1 may include a rotating shaft 8 extending in a direction perpendicular to the base 2 in the horizontal plane. Figure 17 is a side view of the holder 1, a second guide part 4, and a third guide part 5, which include a rotating shaft 18. The second guide part 4 and the third guide part 5 are integrated and can be opened and closed relative to the holder 1 by rotating around the rotating shaft 8. In this case, in the initial state, the second guide part 4 and the third guide part 5 are opened to fix the cable tie 20 to the holder 1. Then, the second guide part 4 and the third guide part 5 are closed, and the first guide part 3 is slid to tighten the cable tie 20. Once tightening is complete, the second guide part 4 and the third guide part 5 are opened to remove the cable tie.

[0057] According to this embodiment, the second guide part 4 and the third guide part 5 can be opened and closed while still attached to the holder 1, so the cable tie 20 can be easily fixed to or removed from the holder 1 without needing a place to put the removed second guide part 4 and the third guide part 5.

[0058] The first guide component 3 may be manually slidable along the base 2. According to this embodiment, the entire device can be configured simply.

[0059] In another embodiment, an air cylinder may be provided to slide the first guide component 3 along the base 2. Figure 18 is a plan view of an automatic cable tie fastening device 101 equipped with an air cylinder 7 for sliding the first guide component 3 along the base 2. The first guide component 3 is driven by the air cylinder 7 and slides along a linear rail 6 parallel to the base 2.

[0060] According to this embodiment, the first guide part 3 is automatically slid by the air cylinder 7, which further reduces the burden on the worker and enables more efficient and faster work.

[0061] Figure 19 shows the entire facility incorporating the automatic cable tie fastening device 101.

[0062] The automatic cable tie tightening device may include a chucking section that grips the band portion 21 that is output downward from the third guide section 5a. According to this embodiment, the cable tie 20 can be tightened even more strongly by gripping and pulling the band portion 21 of the fastened cable tie 20 with the chucking section.

[0063] An automatic cable tie fastening device equipped with a chucking section may further include an air cylinder for raising and lowering the chucking section. According to this embodiment, the band section 21 gripped by the chucking section can be automatically pulled by the air cylinder, thereby further reducing the burden on the operator and enabling more efficient and faster work.

[0064] The automatic cable tie fastening device may also include nippers for cutting the band portion that is output downward from the third guide portion. According to this embodiment, after fastening the cable tie 20, the excess portion of the band portion 21 can be cut off, thus improving convenience.

[0065] Figure 20 shows the entire setup incorporating an automatic cable tie fastening device 102, which includes a chucking unit 30, an air cylinder 31 for moving the chucking unit, and nippers 32.

[0066] [Each aspect of this disclosure] The various aspects of this disclosure are summarized below. An automatic cable tie fastening device in one aspect of this disclosure comprises a holder, a base, a first guide component including a first guide portion and provided on the side of the base opposite to the holder, a second guide component including a second guide portion and provided on the same side of the base as the holder, and a third guide component including a third guide portion and provided below the second guide component. The holder fixes the locking portion of the cable tie so that the hole in the locking portion faces upward. The base extends in the longitudinal direction of the cable tie and supports the band portion of the cable tie. The first guide component is slidable along the base. The third guide component is slidable in a direction perpendicular to the base in a horizontal plane. When the first guide component is slid along the base toward the holder, the band portion is input and the orientation of the band portion is reversed to guide toward the second guide component. When the band section guided by the first guide section is input to the second guide section, the second guide section changes the orientation of the band section by approximately 90 degrees and guides it downward toward the third guide section. When the band section guided by the second guide section is input to the third guide section, the third guide section guides the band section toward the hole in the lock section.

[0067] In one embodiment, the third guide component is adjustable by sliding in a direction perpendicular to the base in a horizontal plane so that the band portion guided by the second guide component fits into the hole of the locking portion.

[0068] In one embodiment, the first guide portion is approximately semicircular in shape when viewed from the side.

[0069] In one embodiment, the second guide portion is approximately quarter-circular in shape when viewed from the side.

[0070] In one embodiment, the second guide component and the third guide component are integrated and removable from the holder.

[0071] In one embodiment, the holder includes a pivot axis extending in a direction perpendicular to the base in the horizontal plane. The second and third guide components are integrated and can be opened and closed relative to the holder by rotating around the pivot axis.

[0072] In one embodiment, the first guide component is manually slidable along the base.

[0073] In one embodiment, the automatic cable tie fastening device includes an air cylinder that slides a first guide component along a base.

[0074] The automatic cable tie fastening device includes a chucking section that grips the band portion that is output downward from the third guide section.

[0075] In one embodiment, the automatic cable tie fastening device includes an air cylinder that moves the chucking part up and down.

[0076] In one embodiment, the automatic cable tie fastening device includes nippers for cutting the band portion that is output downward from the third guide portion.

[0077] The present invention has been described above based on embodiments. These embodiments are illustrative, and it will be understood by those skilled in the art that various modifications are possible in combinations of their components and processing processes, and that such modifications also fall within the scope of the present invention.

[0078] In understanding the technical concept abstracted from the embodiments and modifications, that technical concept should not be interpreted restrictively to the content of the embodiments and modifications. The embodiments and modifications described above are merely examples, and many design changes, such as changes, additions, and deletions of components, are possible. In the embodiments, the content in which such design changes are possible is emphasized with the notation "embodiment." However, design changes are also permitted in content without such notation. [Explanation of Symbols]

[0079] 1. Holder, 2. Base, 3. First guide part, 4. Second guide part, 5. Third guide part, 6. Linear rail, 7. Air cylinder, 8. Rotation axis, 20. Cable ties, 21. Band Club, 22. Lock section, 23 holes, 24. End, 25 notches, 30. Chucking section, 31. Air cylinder for moving the chucking section. 32. Nippers, 100-- Automatic cable tie fastening device, 101. Automatic cable tie fastening device. 102. Automatic cable tie fastening device.

Claims

1. Holder and, The base and A first guide component, including a first guide portion, is provided on the base on the side opposite to the holder, A second guide component, including a second guide portion, is provided on the same side as the holder with respect to the base, The third guide part includes a third guide portion, and the third guide part is provided at the lower part of the second guide part, The holder fixes the locking part of the cable tie so that the hole in the locking part faces upward. The base extends in the longitudinal direction of the cable tie and supports the band portion of the cable tie. The first guide component is slidable along the base, The third guide component is slidable in a direction perpendicular to the base in the horizontal plane, When the first guide portion slides along the base toward the holder, the band portion is input, the orientation of the band portion is reversed, and it is guided toward the second guide portion. When the band portion guided by the first guide portion is input to the second guide portion, the second guide portion changes the orientation of the band portion by approximately 90 degrees and guides it downward toward the third guide portion. The automatic cable tie fastening device is characterized in that the third guide portion guides the band portion toward the hole of the lock portion when the band portion guided by the second guide portion is input.

2. The automatic cable tie fastening device according to claim 1, characterized in that the third guide component is adjustable so that the band portion guided by the second guide component enters the hole in the locking portion by sliding in a direction perpendicular to the base in a horizontal plane.

3. The automatic cable tie fastening device according to claim 1, characterized in that the first guide portion is substantially semicircular in shape when viewed from the side.

4. The automatic cable tie fastening device according to claim 1, characterized in that the second guide portion has a substantially quarter-circle shape when viewed from the side.

5. The automatic cable tie fastening device according to claim 1, characterized in that the second guide component and the third guide component are integrated and removable from the holder.

6. The holder is equipped with a rotation axis that extends in a direction perpendicular to the base in the horizontal plane, The automatic cable tie fastening device according to claim 1, characterized in that the second guide component and the third guide component are integrated and can be opened and closed relative to the holder by rotating around the rotation axis.

7. The automatic cable tie fastening device according to claim 1, characterized in that the first guide component is manually slidable along the base.

8. The automatic cable tie fastening device according to claim 1, further comprising an air cylinder for sliding the first guide component along the base.

9. The automatic cable tie fastening device according to claim 1, further comprising a chucking section for gripping the band section output downward from the third guide section.

10. The automatic cable tie fastening device according to claim 9, further comprising an air cylinder for raising and lowering the chucking portion.

11. The automatic cable tie fastening device according to claim 1, further comprising nippers for cutting the band portion output downward from the third guide portion.

Images