JP2009248259A - Chamfering device, and stainless steel plate chamfering method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To propose a chamfering device capable of efficiently chamfering a cut end face without leaving a working mark on the front or rear surface of a stainless steel plate. <P>SOLUTION: The chamfering device 1 uses sanding belts 41B, 41A of belt sanders 40B, 40A disposed on a transport path to grind the upper and lower corners 9b, 9c of the cut end face 9a of the stainless steel plate 9 transported by a transport mechanism 10, thereby chamfering the cut end face 9a. The chamfering device can perform chamfering more efficiently than manually sanding the cut end face 9a for deburring and chamfering. This chamfering device does not leave such working marks on the front and rear surfaces of a plate member such as a metal plate, as those left by chamfering carried out by rolling a chamfering roller on the metal plate while pressing the chamfering roller thereon to subject the cut end face to plastic deformation. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to a chamfering device that grinds and chamfers a corner of a cut end surface of a metal plate or the like with a belt sander, and more particularly, a chamfering device and a chamfer suitable for chamfering a cut end surface of a stainless steel plate. Regarding the method.

The metal plate cut by pressing or the like is chamfered on the cut end surface to remove burrs and the like so that the sharp edge of the cut end surface does not cause injury. Deburring and chamfering of the cut end surface is generally performed manually, and is inefficient. In Patent Documents 1 and 2, chamfering is performed by plastically processing the cut end surface portion while pressing a chamfering roller on the cut end surface portion of the steel material.
JP 07-276200 A Japanese Unexamined Patent Publication No. 07-1000074

  Here, unlike a steel material, a stainless steel plate or the like is used as it is without being painted after chamfering the cut end face. When chamfering is performed by plastic working of the cut end surface with a chamfering roller, roller press marks remain on the front and back surfaces of the stainless steel plate after rolling while the chamfering roller is pressed, and the appearance quality deteriorates. This is not preferable.

  An object of the present invention is to propose a chamfering apparatus capable of efficiently chamfering a cut end face without leaving roller pressing marks on the front and back surfaces of a plate material such as a metal plate.

  Another object of the present invention is to propose a chamfering method capable of efficiently chamfering a cut end face without impairing the appearance quality of the front and back surfaces of the stainless steel plate.

In order to solve the above problems, the chamfering apparatus of the present invention is:
A transport mechanism for transporting a metal plate or the like;
A belt sander disposed on the conveyance path of the plate material conveyed by the conveyance mechanism;
It has a positioning mechanism for positioning the sanding belt of the belt sander with respect to the corner of the cut end surface of the plate material conveyed along the conveyance path.

  In the chamfering apparatus of the present invention, the corner of the cut end surface of the plate material conveyed by the conveyance mechanism is ground by the belt sander arranged on the conveyance path, and the chamfering process is performed on the cut end surface. The chamfering operation can be performed more efficiently than when deburring and chamfering are performed by sanding the cut end surface by manual work. Further, there is no processing mark left on the front and back surfaces of a plate material such as a metal plate as in the case of chamfering by rolling the chamfering roller against the metal plate and plastically deforming the cut end surface. Therefore, the method of the present invention is suitable for use in chamfering a cut end surface of a stainless steel plate or the like that is used as it is without being subjected to finishing such as painting.

  In the chamfering apparatus of the present invention, the sanding belt of the belt sander has an inclination angle of less than 90 degrees with respect to the metal plate conveyance surface by the conveyance mechanism on an orthogonal plane orthogonal to the conveyance direction of the metal plate. It is desirable to keep it over.

  In this case, in order to chamfer the corners on both sides of the cut end surface of the plate material, the belt sander is arranged in a plane symmetrical with respect to the plate material conveyance surface at a side position of the plate material conveyance surface. A first positioning mechanism for positioning a first sanding belt of the first belt sander as the belt moving mechanism by arranging a first belt sander having a sanding belt and a second belt sander having a second sanding belt And a second positioning mechanism for positioning the second sanding belt of the second belt sander, and chamfering is performed by the first and second sanding belts at the corners on both sides of the cut end surface of the plate material, respectively. It is desirable to apply.

  Further, in the chamfering apparatus according to the present invention, the transport mechanism includes a first transport roller and a second transport roller disposed opposite to each other across the plate transport surface, and the first transport roller and the second transport roller. And a roller opening / closing mechanism for opening / closing between a contact position where the sheet can be conveyed and a standby position separated from each other.

  In this case, an upstream sensor that detects the leading end in the transport direction of the plate material fed to the chamfered position by the first and second sanding belts, and a downstream that detects the rear end in the transport direction of the plate material fed from the chamfered position. A side sensor, and the roller opening and closing mechanism closes the first and second transport rollers to a contact position when the upstream sensor detects the leading edge of the metal plate, and the downstream sensor When the rear end of the plate material is detected, it is desirable to open the first and second transport rollers so as to be in the standby position.

  Next, since the chamfering apparatus of the present invention does not have processing marks or the like on the front and back surfaces of the plate material to be chamfered, the cut end surface of the stainless steel plate to be used as it is without undergoing a finishing process such as painting after the chamfering process. Suitable for chamfering.

  In the chamfering apparatus of the present invention, a chamfering position by a belt sander is arranged in the middle of a plate material conveyance path, and the cut end surface of the plate material conveyed by the conveyance mechanism is chamfered by the belt sander. Therefore, it is possible to perform the chamfering of the cut end face more efficiently than when the chamfering operation of the cut end face is performed manually while pressing the plate material. Further, there is no processing mark left on the front and back surfaces of the metal plate as in the case of chamfering by rolling the chamfering roller against the plate material and plastically deforming the cut end surface. Therefore, the method of the present invention is suitable for use in chamfering a cut end surface of a stainless steel plate or the like that is used as it is without being subjected to finishing such as painting.

  Embodiments of a chamfering apparatus to which the present invention is applied will be described below with reference to the drawings.

  FIG. 1 is a schematic perspective view showing a stainless steel plate chamfering apparatus according to the present embodiment, FIG. 2 is a schematic front view thereof, and FIG. 3 is a schematic plan view thereof. FIG. 4 is a schematic left side view showing the transport mechanism, FIGS. 5A and 5B are a schematic right side view and an explanatory view showing the belt sander mounting portion, and FIG. 6 is a diagram showing the belt sander mounting portion. It is a schematic front view shown.

(overall structure)
The chamfering device 1 according to the present embodiment includes a front vertical frame 2, a rear vertical frame 3 arranged in parallel to the front vertical frame 2, and upper and lower ends between the front vertical frame 2 and the rear vertical frame 3. It has four frame stays 4 that extend horizontally across the part. Further, a left back vertical plate 5 and a right back vertical plate 6 extending rearward from the back surface are attached to the back surface of the back vertical frame 3, and a back plate stay 7 is interposed between these rear end portions. It is stretched horizontally. A device frame 8 of the chamfering device 1 is constituted by these portions 2 to 7.

  The apparatus frame 8 having this configuration is disposed on a conveyance mechanism 10 for horizontally conveying the stainless steel plate 9 from the left side to the right side, and on a conveyance path of the stainless steel plate 9 conveyed by the conveyance mechanism 10. A pair of upper belt sander 40A and lower belt sander 40B, and upper and lower belt sanders 40A and 40B, sanding belt 41A and dancing belt 41B are positioned on the upper side for positioning stainless steel plate 9 to be conveyed. The positioning mechanism 60A and the lower positioning mechanism 60B are assembled.

  The sanding belts 41A and 41B of the upper and lower belt sanders 40A and 40B are inclined at an angle of less than 90 degrees with respect to the horizontal conveyance surface 11 by the conveyance mechanism 10 on the orthogonal plane perpendicular to the conveyance direction A of the stainless steel plate 9. It is stretched over to become. In this example, belt sanders 40A and 40B are arranged vertically above and below the horizontal conveying surface 11 on the apparatus rear side of the horizontal conveying surface 11, and the sanding belt 41A and the sanding belt 41B are disposed on the horizontal conveying surface 11. On the other hand, it is in a state of intersecting in the vertical direction at an inclination angle of approximately 45 degrees.

  The upper and lower positioning mechanisms 60A and 60B swing the sanding belts 41A and 41B of the belt sanders 40A and 40B up and down, with respect to the upper and lower corners 9b and 9c of the cut end surface 9a of the stellen steel plate 9 being conveyed. Then, positioning is performed so that an appropriate relative position is obtained (see FIG. 4A). In this state, while the stainless steel plate 9 is transported along the horizontal transport surface 11 by the transport mechanism 10, the upper and lower belt sanders 40A and 40B deburr and chamfer the upper and lower corners 9b and 9c of the cut end surface 9a.

(Configuration of each part)
First, the transport mechanism 10 that transports the stainless steel plate 9 along the horizontal transport surface 11 will be described. The front vertical frame 2 is a frame that is approximately half the height of the rear vertical frame 3, and the front vertical frame 2 is horizontal in the front-rear direction between the upper end portion of the front vertical frame 2 and the corresponding portion of the rear vertical frame 3. The four conveyor rollers 12 extending in a straight line are stretched around the same horizontal plane at regular intervals from the left side to the right side. These conveyor rollers 12 define a horizontal conveying surface 11 of the stainless steel plate 9. A roller support plate 13 is horizontally attached to the back vertical frame 3 along the horizontal conveyance surface 11, and a guide roller 14 is supported in such a manner that it can rotate around a vertical axis at a constant interval. Yes. These guide rollers 14 guide the cut end surface 9 a of the stainless steel plate 9.

  A state in which the upstream lower transport roller 15 and the downstream lower transport roller 16 extend horizontally in the front-rear direction between the front vertical frame 2 and the rear vertical frame 3 at a certain interval below the horizontal transport surface 11. It is stretched over. The roller shafts of the upstream side lower conveyance roller 15 and the downstream side lower conveyance path roller 16 protrude in front of the front vertical frame 2, and timing pulleys 17 and 18 are attached to end portions of these shafts. A geared motor 19 is attached to the front vertical frame 2 below the timing pulleys 17 and 18, and a driving side timing pulley 20 is attached to an output shaft thereof. A timing belt 21 is stretched between the timing pulleys 17, 18, and 20, and both conveying rollers 15 and 16 are rotated in synchronization.

  On the upper side of the horizontal conveyance surface 11, a roller bracket 24 that can be moved up and down along the left and right vertical guides 22 and 23 attached to the rear vertical frame 3 is disposed. The roller bracket 24 can be moved up and down by a lifting cylinder 25. An upstream upper transport roller 26 and a downstream upper transport roller 27 are horizontally mounted on the roller bracket 24 in a rotatable state. The upstream upper transport roller 26 is positioned directly above the upstream lower transport roller 15, and the downstream upper transport roller 27 is positioned directly above the downstream lower transport roller 16. Timing pulleys 28 and 29 are attached to shaft ends of the rollers 26 and 27, respectively.

  A geared motor 32 attached to a motor bracket 31 is disposed above the rollers 26 and 27. The motor bracket 31 can also be moved up and down along the vertical guides 22 and 23 integrally with the roller bracket 24. A timing pulley 33 on the drive side is attached to the motor shaft of the geared motor 32, and a timing belt 34 is stretched around the timing pulleys 28, 29, 33.

  Therefore, the upstream upper transport roller 26 and the downstream upper transport roller 27 are moved up and down by a roller opening / closing mechanism including the vertical guides 22 and 23, the roller bracket 24, and the lifting cylinder 25, and the upstream lower transport roller 15 and the downstream side It is possible to move to a contact position that contacts the lower conveyance roller 16 and a standby position that is separated upward from these rollers 15 and 16.

  Here, the tip of the stainless steel plate 9 fed toward the rollers 26 and 15 is detected at the left side (upstream side in the transport direction) of the upstream upper transport roller 26 and the upstream lower transport roller 15. For this purpose, an upstream sensor 35 is arranged. Further, on the right side (downstream side) of the downstream upper transport roller 27 and the downstream lower transport roller 16, the downstream side for detecting the rear end of the stainless steel plate 9 fed from these rollers 27, 16. A sensor 36 is arranged. When the upstream sensor 35 detects the feeding of the stainless steel plate 9, the elevating cylinder 25 is driven to lower the upstream upper transport roller 26 and the downstream upper transport roller 27, and the upstream lower transport roller 15 and A state is formed in which the stainless steel plate 9 brought into contact with the downstream lower transport roller 16 and fed between them can be transported. When the downstream sensor 36 detects that the stainless steel plate 9 has been sent out, the upstream upper transport roller 26 and the downstream upper transport roller 27 rise again to return to the standby position.

  Next, the chamfering positions by the belt sanders 40A and 40B are intermediate between the upstream upper conveyance roller 26 and the upstream lower conveyance roller 15, and the downstream upper conveyance roller 27 and the downstream lower conveyance roller 16 on the horizontal conveyance surface 11. Has been placed. That is, with the sanding belt 41A of the belt sander 40A inclined downward by about 45 degrees, it is arranged in a state where chamfering can be performed on the lower corner 9c of the cut end surface 9a of the stainless steel plate 9 to be conveyed. In the state where the sanding belt 41B of the belt sander 40B is inclined upward by about 45 degrees, the upper corner 9b of the cut end face 9a can be chamfered.

  Here, when the thickness of the stainless steel plate 9 to be conveyed is different, the passing position of the upper corner 9b of the cut end face 9a changes vertically. Corresponding to this, a positioning mechanism 60B is arranged to adjust the position of the sanding belt 41B. The positioning mechanism 60B includes a swinging cylinder 61B attached to the right rear vertical plate 6 and a swinging rod 63B swinging around the support shaft 62B by the swinging cylinder 61B.

  The sanding belt 41B of the belt sander 40B is stretched between the driving pulley 42B and the driven pulley 43B, and the support portion 44B that supports the driving pulley 42B is around the central axis of the driving pulley 42B. Can be rotated. The support portion 44B is connected to the swing rod 63B. When the swing rod 63B swings, the support portion 44B rotates around the central axis, and the sanding belt 41B swings in the vertical direction as a whole, cutting the sanding belt 41B. It can be positioned at an appropriate position with respect to the upper corner 9b of the end face 9a. In this example, the sanding belt 41A of the upper belt sander 40A is also performed by the positioning mechanism 60A having a similar structure.

  The operation of the chamfering apparatus 1 configured as described above will be described collectively. First, the worker places the stainless steel plate 9 to be chamfered on the horizontal conveyance surface 11 from the left side and presses the cut end surface 9 a against the guide roller 14, and then the upstream upper conveyance roller 26 and the upstream lower conveyance roller 15. Send in towards. Since the front side of the horizontal conveyance surface 11 is in an open state, it is possible to chamfer even the wide stainless steel plate 9.

  When the leading edge of the fed stainless steel plate 9 is detected by the upstream sensor 35, the upstream upper transport roller 26 and the downstream upper transport roller 27 are lowered and the upstream lower transport roller 15 and the downstream lower transport roller 16. Abut. Thereafter, the fed stainless steel plate 9 is held by the upstream upper transport roller 26 and the upstream lower transport roller 15 and transported toward the chamfering position.

  In the chamfered position, the sanding belts 41A and 41B of the upper and lower belt sanders 40A and 40B are in a driving state. The upper and lower corners 9b and 9c of the cut end surface 9a of the stainless steel plate 9 to be conveyed are deburred and chamfered by the sanding belt 41B and the sanding belt 41A, respectively.

  After passing the chamfering position, the stainless steel plate 9 is picked up by the downstream upper transport roller 27 and the downstream lower transport roller 16 and sent to the downstream side (right side). After the rear end of the stainless steel plate 9 is fed from the rollers 27 and 16, the passage of the rear end is detected by the downstream sensor 36. As a result, the upstream upper transport roller 26 and the downstream upper transport roller 27 are raised, and the transport operation of the stainless steel plate 9 is completed. The stainless steel plate 9 after chamfering is taken out from the downstream side (right side) by an operator.

(Other embodiments)
Although the above example relates to a chamfering device for a stainless steel plate, it goes without saying that the present invention can be used for chamfering a cut end surface of a metal plate other than a stainless steel plate. Further, it can be used as a chamfering device for a cutting end surface of a plate material made of a material other than a metal plate.

It is a schematic explanatory drawing which shows the chamfering apparatus of the stainless steel plate to which this invention is applied. It is a schematic front view of the chamfering apparatus of FIG. It is a schematic plan view of the chamfering apparatus of FIG. It is a schematic left view which shows the conveyance mechanism of the chamfering apparatus of FIG. (A) is a schematic right view which shows the belt sander attachment part of the chamfering apparatus of FIG. 1, (b) is explanatory drawing which expands and shows a part. It is a schematic front view which shows the attachment part of the belt sander of the chamfering apparatus of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Chamfering device 2 Front vertical frame 3 Back vertical frame 4 Frame stay 5 Left back vertical plate 6 Right back vertical plate 7 Back plate stay 8 Device frame 9 Stainless steel plate 9a Cutting end surface 9b, 9c Corner 10 Transport mechanism 11 Horizontal transport surface 12 Conveyor roller 13 Roller support plate 14 Guide roller 15 Upstream lower conveying roller 16 Downstream lower conveying roller 17, 18, 20 Timing pulley 19 Geared motor 21 Timing belt 22, 23 Vertical guide 24 Roller bracket 25 Lifting cylinder 26 Upstream upper Transport roller 27 Downstream upper transport rollers 28, 29, 33 Timing pulley 31 Motor bracket 32 Geared motor 34 Timing belt 35 Upstream sensor 36 Downstream sensor 40A, 40B Belt sanders 41A, 41B Sanding belt 42B Driving pulley 43B Driven pulley 44B Supporting portions 60A, 60B Positioning mechanism 61B Oscillating cylinder 62B Support shaft 63B Oscillating rod A Conveying direction

Claims (6)

A transport mechanism for transporting a metal plate or the like;
A belt sander disposed on the conveyance path of the plate material conveyed by the conveyance mechanism;
A chamfering device having a positioning mechanism for positioning a sanding belt of the belt sander with respect to a corner of a cut end surface of a plate material conveyed along the conveyance path. The chamfering device according to claim 1,
The chamfering device in which the sanding belt of the belt sander is stretched so as to have an inclination angle of less than 90 degrees with respect to the plate material conveyance surface by the conveyance mechanism on an orthogonal plane perpendicular to the conveyance direction of the plate material. The chamfering device according to claim 2,
As the belt sander, a first belt sander including a first sanding belt disposed symmetrically with respect to the plate material conveying surface at a side position of the plate material conveying surface, and a second sander belt including a second sanding belt. Belt sander is arranged,
As the belt moving mechanism, a first positioning mechanism for positioning the first sanding belt of the first belt sander and a second positioning mechanism for positioning the second sanding belt of the second belt sander are arranged,
A chamfering device in which chamfering is performed by the first and second sanding belts at corners on both sides of the cut end surface of the plate material, respectively. The chamfering device according to claim 3,
The transport mechanism is
A first conveying roller and a second conveying roller that are disposed opposite to each other across the plate material conveying surface;
A chamfering device comprising a roller opening and closing mechanism for opening and closing the first transport roller and the second transport roller between a contact position where the plate material can be transported and a standby position separated from each other. The chamfering device according to claim 4.
An upstream sensor for detecting a leading end in a conveying direction of a plate material fed to a chamfered position by the first and second sanding belts;
A downstream sensor for detecting a rear end in the conveyance direction of the plate material fed from the chamfering position;
When the leading end of the metal plate is detected by the upstream sensor, the roller opening / closing mechanism closes the first and second transport rollers to a contact position, and the downstream sensor detects the trailing end of the plate material. Then, a chamfering device that opens the first and second transport rollers so as to be in a standby position.   5. A method for chamfering a stainless steel plate, comprising chamfering a corner of the cut end surface of the stainless steel plate using the chamfering device for a metal plate according to claim 1.

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