JP3476600B2 - Burr separation equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for separating burrs from a molded product. In particular, the present invention relates to a burr separating apparatus capable of separating a burr without causing a defect in a molded product in a molding process. 2. Description of the Related Art As a prior art relating to the present invention, there is a burr cutting machine 50 shown in FIG. FIG. 7 is a front view of the cutting edge side of the burr cutting machine. FIG. 8 is a plan view of the cutting edge side of FIG. FIG. 9 shows a burr cutting machine 50 of FIG.
FIG. 6 is a plan view of a molded product 60 before a burr portion 61 is cut by the method. FIG. 10 is a cross-sectional view of a connecting portion between the seal portion 62 and the burr portion 61. Further, FIG.
Is a cross-sectional view showing a defective product obtained by cutting the burr portion 61 of FIG. The prior art will be described below with reference to FIGS. Reference numeral 51 in FIG. 7 is a part of the pneumatic cylinder. In the pneumatic cylinder 51, a burr cutting blade 53 is detachably attached to a distal end of a rod 52. The plan view of the burr cutting blade 53 is formed as shown in FIG. [0004] At a position facing the burr cutting blade 53, a mount 54 for setting the molded product 60 is arranged.
This mounting base 54 is provided with a burr receiving hole 55,
It is configured to receive burrs cut from the molded product 60. [0005] As shown in Fig. 10, the burr cutting blade 53 is formed in a shape corresponding to the boundary between the burr of the molded product 60 and the seal portion 62, and the tip is formed as a blade. A molded product 60 shown in FIG. 9 is used as a gasket by cutting burrs. In this molded product 60, an annular rubber seal portion 62 is integrally formed on an adhesive surface 63 of a metal plate 64. Further, as shown in FIG. 10, in order to form the seal portion 62, a burr portion 61 is formed on the inner peripheral side of the seal portion 62 by a molding material supplied from a spool. When the burr portion 61 is made thinner, it becomes difficult to cut the burr portion with the burr cutting blade 53, so that the burr portion 61 is formed with an unnecessarily thick wall. The mounting hole 65 is a bolt hole for pressing a gasket formed by separating burrs from the molded product 60 between the two members. [0007] In the above-mentioned conventional burr cutting machine 50, the molded products 60 must be supplied to the mounting table 54 one by one. Therefore, a supply device such as a parts feeder is required. Further, a device for removing the burr portion 61 cut from the molded product 60 from the burr receiving hole 55 is required, and the productivity is reduced due to the operation timing of the supply device and the device for removing the burr. . Furthermore, in order to cut the burr portion 61 with the burr cutting blade 53, the burr cannot be cut unless the burr thickness is increased to some extent, so that the material yield of the molded article 60 is deteriorated by the thickness of the burr. Cost increases. Further, as shown in FIG. 11, since the seal portion 62 is made of a rubber material, a cut surface 66 is formed at the time of cutting, resulting in a defective product. The present invention has been made in view of the above problems, and a technical problem thereof is that a burr separating device for removing a burr of a molded product can be directly attached to a molding machine. Feeding device and deburring device are unnecessary, and at the same time,
It is an object of the present invention to reduce the thickness of burrs attached to a molded product as much as possible to improve the yield of a material, and to prevent defects in the molded product when removing the burrs. According to the present invention, in order to solve the above-mentioned problems , a seal portion is provided on an inner peripheral side of a plate portion,
A spool burr is provided at the center on the inner peripheral side of the seal part.
Radial spool between the spool burr and the seal portion.
Molding with ribs, annular burrs and thin biting burrs
Table with a mounting surface on the top side for mounting
The table is provided above the table.
Reciprocating in the direction of
The plate of the molded product is moved between the
Holding means having a holding jig for holding the portion;
Above the mounting surface at an acute angle to the mounting surface.
While maintaining the angle of inclination
Reciprocating in the direction of
When it moves in the direction
Deburring means having a chuck,
Hold the chuck with the spool burr
By moving it away from the table,
The spool burr, the radial burr and the annular burr are
It is cut off from the seal part at the biting burr
Means are adopted. According to the present invention, the above means are adopted.
Set the molded product on the mounting surface of the table and press
Move the holding jig in the direction of the mounting surface and attach it to the holding jig.
Hold the plate of the molded product between the surface and the
Move the chuck of the means in the direction of the mounting surface and
Therefore, hold the spool burr and remove the chuck in this state.
By moving the spool away from the surface,
Burrs, radial burrs and annular burrs are pulled
The burr is the seal part of the molded product at the border of the thin burr.
Will be disconnected from In this case, deburring means
The chuck is inclined at an acute angle to the mounting surface of the table,
Reciprocate in the direction of the mounting surface while maintaining the inclination angle.
As it is now, I pulled it across the spool burr
Sometimes, biting burrs are cut first on the part far from the chuck.
The part is torn to the part close to the chuck.
In order, spool burrs, radial burrs and annular
The burrs will be separated from the seal. Preferred embodiments according to the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a side view of a burr separating apparatus according to the present invention. 1 is a burr separation device. The burr separation device 1
The moving table 2 on which a molded article 40 described later is set is provided. Then, the moving table 2 is guided and moved by the table guide 3 so that the molded article 40 can be transported to the pre-process and the post-process. This movement is made reciprocable by a pressure cylinder (not shown). In addition, the burr separation device 1 is moved between processes,
The moving table 2 can be fixed. In addition, both can be moved alternately, and the molded article can be transported according to the movement. A plurality of positioning pins 4 are provided on the upper surface of the moving table 2 to form a mounting surface 16, and the positioning pins 4 on the mounting surface 16 are provided with mounting holes 47 for the molded product 40.
Are set by fitting. Above the moving table 2, a molded article 40 is provided.
There is provided a holding means 5 for holding the moving member. The holding means 5 is attached to a holding plate 8 provided on a molding machine via fixed feet 15. The holding means 5 includes a holding jig 6 facing the upper surface of the moving table 2 and a holding pressure cylinder 7 for reciprocating the holding jig 6 toward the upper surface of the moving table 2. The holding jig 6 is connected to a rod 13 of a holding pressure cylinder 7. The holding jig 6 is provided with two support plates 14 which form a space in the middle so that the plate portion 45 of the molded product 40 can be held on the upper surface of the moving table 2. The holding jig 6 is formed in a space so that it can be removed between the support plates 14 when removing burrs. However, the holding jig 6 may be formed in a gate shape to remove burrs from this space. The holding jig 6 is configured to be detachably attached to the holding means 5 so as to correspond to the size of the molded product 40. In front of the holding means 5, there is provided a deburring means 9 for holding a spool on a mounting body 10 mounted on the molding machine. The deburring means 9 is mounted at an angle θ = 70 ° to 85 ° with respect to the mounting plane of the molded article 40, that is, the plane of the moving table 2. The mounting angle can be adjusted by angle adjusting means, and can be adjusted to 45 ° to 87 ° as necessary. When the angle is out of this range, a defect may be caused in a molded product when removing burrs. The deburring means 9 is mounted by an angle adjusting means (not shown) mounted on the mounting body 10, and a reciprocating pressure cylinder 11 is provided on the main body mounted by the angle adjusting means. A chuck 12 for gripping a spool of the molded product 40 is provided at the tip of the reciprocating pressure cylinder 11. FIG. 2 is a front view of the burr separating apparatus 1 of the present invention. The chuck 12 is initially open so that the spool burr 44 can be chucked, moves in parallel with the spool burr 44 in close proximity, and is configured to pinch the spool burr 44. Next, the molded article 40 will be described. Molded product 2 from which burrs have been removed by the burr separation device 1 of the present invention
0 is a gasket used for a pump or the like as an example. In this gasket, a plate portion 45 is sandwiched between a casing and a cover, and the inside and outside of the casing are sealed by a seal portion 46 provided on an inner peripheral side thereof. The molded product 20 has a metal plate portion 45 on the outer periphery and a seal portion 46 on the inner periphery.
Are formed. In order to form the seal portion 46, molding is performed by supplying a molding material from the center of the seal portion 46, and a molding die for molding the molded product 40 of the present invention has a radial shape from the spool to the seal portion 46. Passage and seal part 4
An annular passage on the inner peripheral side of 6 and a meshing surface between the annular passage and the cavity for the sealing portion are provided between the two divided surfaces of the mold. The molded article 40 molded by this molding die
As shown in FIG. 3, burrs are formed. This burr has a spool burr 44 formed at the center, and a radial burr 41 continuous with the spool burr 44 and a radial burr 41.
And a thin burr 43 between the annular burr 41A and the seal portion 46, and a thin burr 42 between the radial burr 41 and the annular burr 41A. And improves the yield of the molding material. In FIG. 2, when the spool burr 44 of the molded product molded as described above is clamped by the chuck 12, the reciprocating pressure cylinder 11 is retracted. The chuck 12 has a configuration in which a piston is moved using pneumatic or hydraulic pressure to perform chucking, or a structure in which a chuck is moved using electromagnetic force, or the like. The operation of the burr separating apparatus of the present invention will be described below. The molded article 40 is moved to the burr separating apparatus step from the previous step on the molding side while being set on the moving table 2. Then, in the state of being disposed in the process of the burr separating device, the pressing pressure cylinder 7 of the pressing means 5 is operated, and the pressing jig 6 presses and holds the plate portion 45 of the molded product 40 to the moving table 2. Next, the deburring means 9 operates the reciprocating pressure cylinder 11 with the chuck 12 opened to move the chuck 12 to the moving table 2 side. Then, the chuck is actuated in a state of being inserted into the spool burr 44 to clamp the spool burr 44. Next, since the reciprocating pressure cylinder 11 is retracted, the entire burr of the molded product 40 is pulled. At this time, the burr of the molded product 40 is in the range of 70 ° to 85 ° with respect to the plane of the molded product 40, for example, 75 °.
Since it is pulled in an inclined direction, the biting burr 43 is cut off from the leading end which receives the strongest tension. Then, the bite-burr portion of the molded product 40 is cut off one after another, and the molded product 40 and the entire burr are separated. As a result, the entire burr can be easily and easily separated from the molded product. In the molding machine, by repeating the above-described steps for each molding, the molded article 40 can separate burrs one after another. The present invention has the above-described structure.
Set the molded product on the mounting surface of the table
Hold the plate between the mounting surface and the holding jig of the holding means.
The spool burr in the state of
And move the chuck away from the mounting surface.
By removing the spool burr, radial burr and annular burr
The burrs are pulled and the burrs are thin-walled
Is separated from the seal part at the boundary. this
The chuck is inclined at an acute angle to the mounting surface,
Move away from the mounting surface while maintaining the oblique angle
The part far from the burrs chuck
Is cut first, and from that part to the part close to the chuck
It will be cut off sequentially. Therefore, overall
Cut the burr with almost even force across the burrs and spool
Separates burrs, radial burrs and annular burrs from the seal
Part can be cut into the seal
And the seal is under tension.
The sealing part is not peeled off
Stable non-defective products that can reliably separate only burrs
A quality product will be obtained. Further, the deburring means is attached to the table on which the molded product is set so as to be inclined,
Since burrs can be separated without generating defective products, burrs can be separated from molded products by directly attaching them to a molding machine. As a result, there is no need for a device for aligning the molded product with a part feeder or the like to separate burrs, and it is also possible to effectively prevent the molded product from being cut into a defective product as in the case of conventional burrs with a blade.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of a burr separating apparatus according to an embodiment of the present invention. FIG. 2 is a front view of the burr separating apparatus shown in FIG. FIG. 3 is a plan view of a molded product before burrs are separated by a burr separating apparatus according to the present invention. FIG. 4 is a side view of the molded product shown in FIG. 5 is a cross-sectional view of a cut-off portion between a seal portion and a burr of the molded product shown in FIG. 3; 6 is a plan view of a molded product obtained by separating burrs from the molded product shown in FIG. FIG. 7 is a partial front view of a conventional burr cutting machine. 8 is a plan view of the burr cutting blade shown in FIG.
It is. FIG. 9 is a plan view of a molded product before being cut by a conventional burr cutting machine. FIG. 10 is a sectional view (B-) of the seal portion of the molded product shown in FIG. 8;
B view). FIG. 11 is a defective sectional view of a molded product cut by a conventional burr cutting machine. [Description of Signs] 1... Burr separation device 2... Moving table 3... Table guide 4... Locating pin 5 ...... Holding means 6… Holding jig 7… Holding pressure cylinder 8… Holding plate 9 Deburring means 10 Mounting body 11 Reciprocating pressure cylinder 12 Chuck 13, 52 Rod 14 Support plate 15 Fixed foot 16 Mounting surface 20 Molded product 40 Molded product (gasket) 41 radial burrs 41A annular burrs 42 thin burrs 43 biting burrs 44 spool burrs 45 plate parts 46, 62 sealing parts 47, 65 mounting holes 50 burr cutting machine 51 pneumatic cylinder 53 burr cutting blade 54 mounting base 55 burr receiving hole 60 molded product 61 burr portion 63 bonding surface 64 metal plate 66 …… cut surface

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B26F 3/02

Claims (1)

(57) [Claims 1] A seal portion is provided on the inner peripheral side of the plate portion.
A spool burr is provided at the center part on the inner peripheral side of the seal part,
Radial burr, ring between the spool burr and the seal portion
A molded product provided with a burr and a thin biting burr is
A table having a mounting surface for mounting
Table and the direction of the table
Reciprocally movable in the direction of the table.
When moving, the plate portion of the molded product is sandwiched between the mounting surface and the mounting surface.
Holding means having a holding jig to be held; and
And provided at an acute angle to the mounting surface
The direction of the table is maintained while maintaining the inclination angle.
Reciprocally movable in the direction of the table.
Has a chuck that clamps the spool burr when
And a deburring means for removing the flash by the chuck.
Hold the chuck with the tape while holding the pool burr
By moving it away from the spool.
Burrs, the radial burrs and the annular burrs
Be separated from the seal part at the border
Characteristic burr separation device.