JPH0450976Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a deburring roller device for removing burrs generated on a workpiece such as a metal plate punched by a punching machine. The present invention relates to an apparatus for crushing and substantially removing burrs by passing a workpiece between deburring rollers of the present invention.

(Prior art) This type of deburring roller device in the past is
This roller is disclosed in Japanese Utility Model Application Publication No. 54-9136 and Japanese Utility Model Application No. 51-111291, but generally speaking, it consists of a driving roller fixed in a fixed position and a driven roller that can move away from and approach the driving roller. The driving roller is rotated by a driving motor interlockingly connected to the roller shaft, and the driven roller is always urged to be close to the driving roller by a compression coil spring, or by a hydraulic cylinder on the fixed side. It is movable relative to the drive roller.

(Problem to be solved by the invention) In the conventional deburring roller device described above, only the fixed roller of the pair of deburring rollers is directly driven by a drive source such as a motor, and the movable roller is simply an idling roller. , since it is a roller that is indirectly rotated through the workpiece that is pulled out by receiving the rotational force from the drive roller when the workpiece passes,
This driven roller on the movable side and the driving roller on the fixed side cannot be completely synchronized due to slippage that tends to occur on the driven roller side, and as a result, a tensile force is applied to one side of the workpiece that comes into contact with the driving roller. power and
A difference occurs between the driven roller and the tensile force acting on the other side of the workpiece that comes into contact with it, and as a result, the workpiece sometimes warps. If the workpiece material is warped in this way, it cannot be used as a product until then, so after deburring, the warped workpiece material must be straightened into a flat plate, which is a very tedious task. Ta.

The present invention aims to solve such problems.

(Means for Solving the Problems) A deburring roller device of the present invention capable of achieving the above object has a fixed side deburring roller and a movable side deburring roller opposing the fixed side deburring roller. The driving gear provided at the end of the fixed deburring roller and the driven gear provided at the opposite end of the movable deburring roller rotate in synchronization with each other, and the movable deburring roller The deburring roller is capable of moving toward and away from the stationary deburring roller within a range where the driving gear and the driven gear can mesh with each other, and is normally urged by an elastic member to approach the stationary deburring roller. It is characterized by

(Example) Figs. 1 to 3 show a deburring roller device as an embodiment of the present invention, in which a pair of portal frames 2, 2 are erected in parallel on a machine base 1 at a constant interval. A pair of upper and lower deburring rollers 3 and 4 are arranged between them, and the lower deburring roller 4 is rotatably supported by bearings 5 and 5 fixed to the lower part of the gate-shaped frames 2 and 2. The upper deburring roller 3 is rotatably supported via bearings 7, 7 by lifting blocks 6, 6 which are arranged in the portal frame 2 so as to be able to move up and down. A driven gear 8 and a drive gear 9 that mesh with each other are respectively pivotally attached to one end of both the deburring rollers 3 and 4, and the lower deburring roller 4 is driven by a drive motor 10 such as a geared motor with a brake. The upper deburring roller 3 is rotated in opposite directions in synchronization with the lower deburring roller 4 via the driven gear 8 and drive gear 9. Reference numeral 12 denotes a lifting guide plate for lifting blocks fixed to each gate post portion 2a, 2a of each gate frame 2, 2.

A hard material such as carbon steel (S45C, etc.) is used for both the deburring rollers 3 and 4, and the surfaces 3a and 4a thereof are hardened and then polished to a smooth finish and have wear resistance. Granted. Therefore, even if a workpiece A such as a metal plate punched by a punching machine is passed between the deburring rollers 3 and 4 rotating in the direction of the arrow as shown in FIG. Also, the roller surface will not be damaged or worn out by the burrs B generated thereon.

A height adjustment bolt 14 is provided which loosely passes through the center of the top plate portion 2b of each portal frame 2 and whose lower end is screwed into the screw hole of each lifting block 6, 6. The upper deburring roller 3 can be raised and lowered via the respective lifting blocks 6, 6 by appropriately rotating the rollers forward and backward. Reference numeral 15 is a set bolt that is screwed into the screw hole of each lifting block 6, 6 and is pressed against each of the height adjustment bolts 14, 14 to set the lifting position of the lifting blocks 6, 6. be.

As shown in FIGS. 2 and 3, a substantially thick cylindrical elastic member 16 such as urethane rubber or a coil spring is placed on each of the lifting blocks 6, 6, and the upper part of the elastic member 16 is is covered with a metal cap 17. Each elastic member 16 urges the upper deburring roller 3 to approach the lower deburring roller 4 via the lifting block 6 and the bearing 7. Further, on the top plate portions 2b, 2b, a biasing force adjustment bolt 18, which presses against the cap 17, is provided.
18... are screwed together, and each bolt 18, 18...
The biasing force exerted on the upper deburring roller 3 by the elastic member 16 can be adjusted by appropriately rotating it in the forward or reverse direction. In addition,
Each bolt 18 is adjusted so that the upper deburring roller 3 can move into and out of contact with the lower deburring roller 4 within a range where it can mesh with the driven gear 9.

When performing deburring, the motor 10 is driven to rotate both rollers 3 and 4 synchronously, and between the rollers 3 and 4, as shown in FIG. It is sufficient to feed the material A continuously from the same line, and as a result, as shown in FIG. 4, the workpiece A drawn between the deburring rollers 3 and 4 is The burr B generated on the periphery is crushed by both deburring rollers, and the burr B is formed on the surface of the workpiece A by the material of the workpiece A.
As shown in Figure a, it remains as a minute convex part, or as shown in Figure 5b, it is buried inside from the surface of the workpiece A, and is substantially the surface of the workpiece A, especially its cut edge. It is possible to achieve the same effect as removing burrs from.

(Effects of the invention) According to the deburring roller device of the present invention, since both the deburring rollers are directly driven and rotated synchronously by the meshing of the driving gear and the driven gear, the deburring rollers can be passed between the two deburring rollers. The tensile force from both deburring rollers acts equally on both sides of the workpiece, so that the workpiece does not warp and can maintain its flat state. Moreover,
Both deburring rollers have a gap between them that can be freely displaced within the range where the driving gear and driven gear can mesh with each other, and are constantly in pressure contact with the workpiece, so that the deburring rollers protrude from both sides of the workpiece. This makes it possible to reliably crush any burrs that may occur and effectively remove the burrs.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view of a deburring roller device according to an embodiment of the present invention, Fig. 2 is a partially cutaway side view of the same, and Fig. 3 is a partially cutaway plan view of the same main part. FIG. 4 is a schematic perspective view of the main part showing the deburring state, and FIGS. 5a and 5b are enlarged views of the workpiece after deburring. 3... Movable side deburring roller, 4... Fixed side deburring roller, A... Workpiece material, B... Burr, 8
... Driven gear, 9... Drive gear.

Claims (1)

[Scope of utility model registration request] It has a fixed side deburring roller and a movable side deburring roller that opposes the fixed side deburring roller, and both deburring rollers have a drive gear provided at the end of the fixed side deburring roller and a movable side deburring roller that opposes the fixed side deburring roller. The movable deburring roller is rotated in synchronization with the driven gear provided at the end of the deburring roller, and the movable deburring roller is rotated relative to the stationary deburring roller within the range in which the driving gear and the driven gear can mesh with each other. A deburring roller device that can move toward and away from the deburring roller and is normally urged by an elastic member to approach a fixed deburring roller.