CN216266462U - Punching device - Google Patents
Punching device Download PDFInfo
- Publication number
- CN216266462U CN216266462U CN202121757039.XU CN202121757039U CN216266462U CN 216266462 U CN216266462 U CN 216266462U CN 202121757039 U CN202121757039 U CN 202121757039U CN 216266462 U CN216266462 U CN 216266462U
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- suction nozzle
- blade
- punching
- hole
- weather strip
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Abstract
The utility model provides a punching device which can effectively remove and recover hole residues generated by punching holes at specified positions of sealing strips. The punching device is used for punching a hole at a specified position of the sealing strip, and comprises a punching blade, a cylindrical suction nozzle and a driving part, wherein the punching blade comprises a blade part used for punching the hole on the sealing strip at the front end and a base shaft part extending from the blade part to the base end side, the suction nozzle is arranged around the base shaft part and exposes the front end of the blade part, the driving part can drive the punching blade and the suction nozzle to advance and retreat relative to the sealing strip, a suction port is arranged on the suction nozzle, and the suction port is used for enabling the suction nozzle to be communicated with a suction device used for sucking hole residues generated when the sealing strip is punched.
Description
Technical Field
The utility model relates to a perforating device for perforating a sealing strip (weather strip) for an automobile, in particular to a perforating device for perforating clamping holes, exhaust holes, drain holes and the like on the sealing strip.
Background
Conventionally, a weather strip made of an elastic body such as rubber or resin is provided in an automobile to seal a space between a peripheral edge of an opening/closing body such as a door panel and a peripheral edge of a vehicle body opening portion opened/closed by the opening/closing body. In general, a weather strip includes a hollow mounting portion mounted to the opening/closing body by a clip or a tape, and a hollow sealing portion formed integrally with the mounting portion, the sealing portion being elastically brought into contact with a peripheral edge of the opening portion of the vehicle body to seal the opening portion when the door is closed. In addition, when the seal portion is hollow, a piercing process is usually performed, and when the weather strip is attached to the opening/closing body by a clip, a hole for attaching the clip (hereinafter, referred to as a clip hole) is provided in advance in the attachment portion.
When the clip hole is formed in the weather strip, the weather strip is perforated by a perforation device having a perforation blade. Specifically, the clip hole is formed in the attachment portion of the weather strip by pressing the clip against the attachment portion of the weather strip while rotating the piercing blade for piercing the clip hole, thereby cutting the portion to which the clip is attached into a cylindrical shape.
However, when the weather strip is perforated by the perforating blade as described above, a cylindrical portion (hereinafter referred to as a hole residue) cut by the perforation by the pinching remains in the perforated portion without being removed, enters a hollow of the mounting portion, or scatters into the perforating apparatus. If the hole residue remains in the perforated portion or enters the hollow of the mounting portion, the clip cannot be easily inserted into the clip hole when the clip is mounted on the weather strip, and on the other hand, if the hole residue scatters into the perforation apparatus, there is a problem of contamination of the apparatus. Therefore, it is necessary to effectively remove and recover the hole residue from the perforated portion.
The present invention has been made in view of the above problems, and an object thereof is to provide a piercing device capable of efficiently removing and collecting hole residue generated when a hole is formed at a predetermined position of a weather strip.
SUMMERY OF THE UTILITY MODEL
In order to achieve the above object, in the present invention, the piercing device is provided with a suction nozzle and a suction port which communicate with a suction device for sucking hole residue generated when piercing a predetermined position of the weather strip.
Specifically, the present invention provides a piercing device for piercing a hole in a predetermined position of a weather strip, the piercing device including: a piercing blade including a blade portion at a leading end for piercing the weather strip and a base shaft portion extending from the blade portion to a base end side; a cylindrical suction nozzle provided so as to surround the base shaft portion and expose a tip of the blade portion; and a driving unit that drives the punching blade and the suction nozzle to advance and retreat with respect to the weather strip, wherein the suction nozzle is provided with a suction port for communicating the suction nozzle with a suction device for sucking hole debris generated when the weather strip is punched.
According to the present invention, the hole punching device is provided with the tubular suction nozzle formed around the periphery of the base shaft portion of the punching blade, and the suction port for communicating the suction nozzle with the suction device for sucking the hole residue generated when the hole is punched at the desired position of the weather strip, whereby the hole residue can be sucked into the suction device through the suction nozzle and the suction port. Thus, it is possible to prevent the hole residue from remaining in the hole of the weather strip after the hole is punched, from entering the hollow of the mounting portion, or from scattering into the punching device.
Preferably, the perforation device of the present invention further comprises: a cylindrical cap having an outer diameter smaller than an inner diameter of the suction nozzle, the cap being disposed at a distal end of the suction nozzle around the edge portion of the piercing blade; and an elastic member disposed in the suction nozzle and pushing the cap toward a front end side of the suction nozzle, wherein the cap is configured to: when a force is applied to the base end side of the punching blade, the elastic member can be moved to the base end side of the suction nozzle.
Thus, when the weather strip is perforated, the cap first comes into contact with the weather strip as the suction nozzle and the perforation blade move toward the weather strip, and then the cap moves toward the base end side of the suction nozzle against the elastic member, and the blade portion of the perforation blade comes into contact with the weather strip to perform perforation. In this case, since the tip of the cap is in close contact with the weather strip, no gap is formed between the cap and the weather strip, and therefore, when the hole residue is sucked into the nozzle body, the hole residue can be reliably prevented from scattering to the outside of the nozzle, and the suction efficiency of the hole residue remaining in the weather strip after the punching can be improved.
According to the present invention, it is possible to effectively remove the hole residue generated by the perforation at the predetermined position of the weather strip.
Drawings
Fig. 1 is a sectional view of a piercing device according to a first embodiment of the present invention.
Fig. 2 is a sectional view showing a process of perforating a weather strip using the perforating apparatus shown in fig. 1.
Fig. 3 is a sectional view of a piercing device according to a second embodiment of the present invention.
Fig. 4 is a sectional view showing a process of perforating the sealing tape using the perforating device shown in fig. 3.
Fig. 5 is a sectional view showing a process of perforating the sealing tape using the perforating device shown in fig. 3.
1: sealing strip, 10: perforation device, 20: piercing edge, 21: blade, 22: base shaft portion, 30, 31: suction nozzle, 40: drive unit, 50: suction port, 60: cover portion, 70: a spring member.
Detailed Description
Hereinafter, embodiments of the present invention will be described with reference to the drawings. The following description of the preferred embodiments is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses.
First, the weather strip 1 to be perforated will be briefly described. As shown in fig. 1, the weather strip 1 includes a hollow attachment portion 1a and a hollow sealing portion 1b formed integrally with the attachment portion 1a, the attachment portion 1a is attached to an opening/closing body such as a door panel by a clip, and the sealing portion 1b is elastically brought into contact with a peripheral edge of a vehicle body opening portion to seal the opening portion when the door is closed. Specifically, the attachment portion 1a is formed with a clip hole for attaching a clip in a later-described process of piercing the weather strip 1. Here, the molding method of the weather strip 1 according to the present embodiment is not particularly limited, and the weather strip can be formed by a method such as extrusion molding.
(first embodiment)
Next, a piercing apparatus 10 according to a first embodiment of the present invention will be described with reference to fig. 1. As shown in fig. 1, a punching device 10 according to a first embodiment of the present invention includes a punching blade 20 for punching a clamping hole in a weather strip 1, and a cylindrical suction nozzle 30, and the punching blade 20 and the suction nozzle 30 are attached to a driving unit 40. Although not shown, the driving unit 40 includes a driving mechanism that can drive the punching blade 20 to rotate and can drive the punching blade 20 and the suction nozzle 30 to advance and retreat, i.e., move in the vertical direction, with respect to the weather strip 1 in the punching step of the weather strip 1, which will be described later.
The piercing edge 20 includes: a blade portion 21 for opening a clamping hole in the mounting portion 1a of the weather strip 1 at the tip end, and a base shaft portion 22 extending from the blade portion 21 to the base end side, and the base shaft portion 22 of the punching blade 20 is mounted on the driving portion 40. A suction nozzle 30 is provided around the base shaft portion 22 of the punching blade 20, the suction nozzle 30 is attached to the driving portion 40, and the tip of the blade portion 21 of the punching blade 20 is exposed from the suction nozzle 30. The driving unit 40 is not particularly limited as long as it has a mechanism capable of driving the punching blade 20 to rotate and driving the punching blade 20 and the suction nozzle 30 to move in the vertical direction as described above, and as long as it has a structure capable of driving the punching blade 20 to rotate and driving the punching blade 20 and the suction nozzle 30 to move in the vertical direction. Although fig. 1 shows a configuration in which the punching blade 20 and the suction nozzle 30 are directly attached to the driving unit 40, the present invention is not limited thereto, and may be indirectly connected to each other by another member as long as the punching blade 20 can be driven to rotate and the punching blade 20 and the suction nozzle 30 can be driven to move in the vertical direction. On the other hand, a hollow suction port 50 is provided in a side portion of the suction nozzle 30, and the suction port 50 is used to communicate the suction nozzle 30 with a suction device (not shown) for sucking hole residue generated in a punching step of the weather strip 1, which will be described later. Specifically, the suction port 50 is formed integrally with the suction nozzle 30 and communicates with the suction device. The hole debris can thus be sucked into the suction device via the suction nozzle 30 and the suction opening 50. In the present embodiment, the suction port 50 is integrated with the suction nozzle 30, but the present invention is not limited thereto, and the suction port 50 may be provided separately, or a hole for attaching the suction port 50 may be provided in the suction nozzle 30. In this case, the suction opening 50 can be embedded in a hole, for example, for mounting the suction opening 50 on the suction nozzle 30. The edge portion 21 of the punching blade 20 according to the present embodiment has a cylindrical shape at the tip, but the shape of the edge portion 21 is not particularly limited, and may be a single edge or the like.
Next, a process of forming a clip hole in the weather strip 1 using the piercing apparatus 10 according to the first embodiment will be described with reference to fig. 1 and 2.
First, as shown in fig. 1, a weather strip 1 to be perforated is fixed by a jig 2 so that an attachment portion 1a to be perforated with a jig hole is positioned on the upper side. Then, when the punching device 10 is driven, as shown in fig. 2, the rotating punching blade 20 and the suction nozzle 30 are driven by the driving portion 40 to move downward toward the weather strip 1. When the punching blade 20 and the suction nozzle 30 move downward, the tip of the blade portion 21 of the punching blade 20 is pressed against the mounting portion 1a of the weather strip 1. Thereby, the tip of the blade portion 21 of the punching blade 20 penetrates the mounting portion 1a, and a clamping hole is bored in the mounting portion 1a of the weather strip 1.
At this time, in the case of the conventional punching apparatus, the hole residue generated in the punching process of the weather strip 1 remains in the pinched hole of the mounting portion 1a, or enters the hollow of the mounting portion 1a, or scatters into the punching device, whereas in the case of the punching apparatus 10 according to the first embodiment, the suction means for sucking the hole residue communicates with the suction nozzle 30 via the suction port 50, and therefore the hole residue generated in the punching process of the weather strip 1 can be sucked into the suction means via the suction nozzle 30 and the suction port 50. This prevents the hole residue from remaining in the pinched hole of the weather strip 1 after the piercing, from entering the hollow of the attachment portion 1a, or from scattering into the piercing equipment.
(second embodiment)
Next, a piercing apparatus 11 according to a second embodiment of the present invention will be described with reference to fig. 3 and 4. In the present embodiment, the same portions as those in the first embodiment will be referred to by the above description and symbols. Although not shown in the drawings, in the present embodiment, the punching blade and the suction nozzle are fixed to the driving unit, and a suction port for communicating the suction nozzle with the suction device is provided at a side portion of the suction nozzle, as in the first embodiment.
As shown in fig. 3, in the present embodiment, a reduced diameter portion 31a is formed at the tip of the nozzle 31 so as to be reduced in diameter from the inner diameter of the nozzle 31 toward (inside) the piercing blade 20, and the cylindrical cap portion 60 is fitted into the reduced diameter portion 31a of the nozzle 31. Specifically, the cap 60 has an outer diameter smaller than the inner diameter of the nozzle 31, and is provided around the periphery of the tip of the blade portion 21 of the punching blade 20. An expanded diameter portion 61 that is expanded in diameter by the outer diameter of the cover portion 60 is provided at the end portion of the cover portion 60 on the base shaft portion 22 side, and the expanded diameter portion 61 is fastened to the reduced diameter portion 31a of the suction nozzle 31. This prevents the cap 60 from falling off from the tip side of the nozzle 31.
As shown in fig. 4, inside the suction nozzle 31, a spring member 70 as an elastic member and a mounting wall 31b for mounting the spring member 70 are provided. The mounting wall 31b protrudes inward from the inner wall of the suction nozzle 31, but does not completely block the hollow portion of the suction nozzle 31 so that the hole residue sucked by the base shaft portion 22 of the punching blade 20 and punching can pass therethrough. In fig. 4, the mounting wall 31b is formed separately from the inner wall of the suction nozzle 31, but may be formed integrally. One end of the spring member 70 is fixed to the mounting wall 31b, and the other end abuts against the enlarged diameter portion 61 of the cover 60 to push the cover 60 toward the tip side of the suction nozzle 31. As a result, as shown in fig. 3 and 4, the cover portion 60 covers the edge portion 21 of the punching blade 20 before the punching step, and when a force toward the base end side of the punching blade 20 is received in the punching step of the weather strip 1 described later, the cover portion 60 can move toward the base end side of the suction nozzle 31 against the spring member 70. This allows the blade portion 21 of the punching blade 20 to be exposed. Although the spring member 70 is used as the elastic member in the present embodiment, the elastic member is not particularly limited as long as it can push the lid 60 toward the tip side of the nozzle 31, and for example, a rubber member or the like may be used.
Next, a process of forming a hole in the weather strip 1 by using the piercing device 11 according to the present embodiment will be described with reference to fig. 4 and 5.
After the weather strip 1 is fixed to the jig 2, when the punching device 11 is driven, the punching blade 20 and the suction nozzle 31 move downward toward the weather strip 1 as shown in fig. 4, and the front end of the cover portion 60 abuts on the mounting portion 1a of the weather strip 1. Further, when the punching blade 20 and the suction nozzle 31 move downward, as shown in fig. 5, the lid portion 60 moves toward the base end side of the suction nozzle 31 by receiving a force from the mounting portion 1a in a direction toward the base shaft portion 22 (opposite side to the weather strip 1), and the blade portion 21 of the punching blade 20 is exposed from the lid portion 60 and penetrates the mounting portion 1a of the weather strip 1 to punch a hole in the mounting portion 1 a.
At this time, the front end of the cover portion 60 is in close contact with the mounting portion 1a of the weatherstrip 1. Therefore, as in the first embodiment, when the hole residue is sucked into the suction device through the suction nozzle 31 and the suction port 40, the hole residue can be reliably prevented from scattering to the outside of the suction nozzle 31, and the hole residue remaining in the clip hole of the weather strip 1 after the punching can be prevented from entering the hollow of the mounting portion 1a, thereby improving the suction efficiency of the hole residue.
As described above, according to the punching device according to the first and second embodiments, since the tubular suction nozzle formed around the periphery of the punching blade and the suction port for communicating the suction nozzle with the suction device for sucking the hole debris are provided, the hole debris generated when the sealing tape is punched at the desired position can be sucked into the suction device via the suction nozzle and the suction port. Thus, it is possible to prevent the hole residue from remaining in the hole of the weather strip after the hole is punched, from entering the hollow of the mounting portion, or from scattering into the punching device.
In the above embodiments, the clip hole for attaching the clip to the weather strip has been described as an example, but the present invention is not limited to this, and can be applied to other holes such as the air vent hole and the drain hole of the weather strip. In the above embodiments, the piercing blade and the suction nozzle of the piercing device are driven up and down in the piercing step, but the jig to which the weather strip is fixed may be driven up and down toward the piercing blade. In the above embodiments, the punching device and the jig to which the weather strip is fixed are disposed vertically, but the present invention is not limited to this, and may be disposed, for example, in the left-right direction.
Claims (2)
1. A piercing device for piercing a hole in a sealing tape at a predetermined position,
the perforation device includes:
a piercing blade including a blade portion at a leading end for piercing the weather strip and a base shaft portion extending from the blade portion to a base end side;
a cylindrical suction nozzle provided so as to surround the base shaft portion and expose a tip of the blade portion; and
a driving portion that drives the piercing blade and the suction nozzle to advance and retreat with respect to the weather strip,
a suction port for communicating the suction nozzle with a suction device for sucking hole debris generated when the sealing tape is perforated is provided on the suction nozzle.
2. The perforating device as recited in claim 1,
the perforation device further comprises:
a cylindrical cap having an outer diameter smaller than an inner diameter of the suction nozzle, the cap being disposed at a distal end of the suction nozzle around the edge portion of the piercing blade; and
an elastic member disposed in the suction nozzle and pushing the cap toward the front end of the suction nozzle,
the lid portion is configured to: when a force is applied to the base end side of the punching blade, the elastic member can be moved to the base end side of the suction nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121757039.XU CN216266462U (en) | 2021-07-29 | 2021-07-29 | Punching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121757039.XU CN216266462U (en) | 2021-07-29 | 2021-07-29 | Punching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216266462U true CN216266462U (en) | 2022-04-12 |
Family
ID=81057784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121757039.XU Active CN216266462U (en) | 2021-07-29 | 2021-07-29 | Punching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216266462U (en) |
-
2021
- 2021-07-29 CN CN202121757039.XU patent/CN216266462U/en active Active
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