JPH07106545B2 - Abrasive supply system for deburring machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention is a deburring device for cleaning and deburring a workpiece by jetting an ultra-high pressure jet water stream together with an abrasive onto a workpiece conveyed in a cleaning liquid. The present invention relates to an abrasive cleaning material supply device.

[Prior Art] Conventionally, when deburring and cleaning a work, a technology is known in which a super-high-pressure jet water flow is projected together with an abrasive onto a work in a water tank filled with a cleaning liquid.

As such a conventional example, as shown in FIG. 4, a cleaning liquid 2 is stored in a water tank 1, and an ultrahigh-pressure jet water flow 4 is supplied from a jet nozzle 3 arranged on the water surface to the bottom surface of the water tank 1. It is known to apply the work 5 placed on the part. At this time, a mixing chamber 6 is provided at the tip of the jet nozzle 3, and an abrasive 7 such as glass beads is premixed into the jet water flow 4 through the mixing chamber 6 and projected onto the work 5 in the water from above the water. . According to the conventional technique as described above, the polishing agent 7 uniformly acts on the jet water flow 4 on the work 5 without being affected by the shapes of the water tank 1 and the work 5, so that cleaning and deburring can be performed efficiently. .

However, in the above-described conventional example, the mixed liquid mixed with the abrasive 7 is squeezed at the tip of the jet nozzle 3 to form the jet water flow 4, so that the tip of the jet nozzle 3 is worn by the abrasive 7. . Therefore, long-term continuous operation of the device was difficult. Moreover, it was uneconomical to constantly supply a new abrasive 7 to the jet water stream 4.

In order to solve such a problem, the present applicant has previously proposed the abrasive projection device 8 and the abrasive 7 provided therein.
Nozzle 9 is proposed.

That is, the abrasive projection device 8 is, as shown in FIG.
The side wall of the water tank 1 is provided with a drainage pipe 10 for draining the overflowed cleaning liquid 2 in order to keep the liquid level of the cleaning liquid 2 constant. Further, near the bottom, the cleaning liquid 2 and the abrasive 7
A sampling pipe 11 for sampling a slurry 12 that is a mixed suspension of A slurry pump 13 is provided in the middle of the sampling pipe 11 so as to deliver the slurry to the separation tank 14. This separation tank 14 is equipped with a filter 14a at the bottom thereof, and the slurry 1
The cleaning liquid 2 and the abrasive 7 are separated from 2. Further, a conveyor 15 for carrying out the separated abrasive 7 is arranged above the filter 14a, and a drying furnace 16 for drying the abrasive 7 is provided in the middle of the transfer. Further, a water supply pipe 17 for returning the cleaning liquid 2 filtered by the filter 14a to the water tank 1 is formed on the lower surface of the separation tank 14. Further, a reservoir 18 for storing the dried abrasive 7 is installed at the transfer end of the conveyor 15. The abrasive 7 is transferred from the reservoir 18 to the projection nozzle 9 through the transfer pipe 20 by the transfer force of the feed pump 19.

On the other hand, as shown in FIG. 6, the projection nozzle 9 is provided with a cleaning liquid ejection port 21 at the lower end, and an abrasive projection port 22 is formed so as to concentrically surround the cleaning liquid ejection port 21. There is. The opening of the abrasive projection port 22 is the cleaning liquid jet port.
It is set slightly above the 21 openings. Therefore, the abrasive 7 falls into the jet water stream 4 by the negative pressure generated by the high speed of the jet water stream 4 while dropping by gravity around the jet water stream 4.

According to such a polishing agent projecting device 8, the tip of the projection nozzle 9 is not worn by the polishing agent 7, and the cleaning liquid 2 and the polishing agent 7 are circulated and used, thereby saving the usage amount. You can do it.

[Problems to be Solved by the Invention] However, the following problems have been pointed out in the above conventional techniques.

That is, since the abrasive projection device 8 is provided with the separation tank 14 for separating the cleaning liquid 2 and the abrasive 7 and the drying furnace 16 for drying the abrasive 7, the device becomes large and complicated. Was there.

Moreover, in the abrasive material projecting device 8, since the dry and lightweight abrasive material 7 may drop into the water tank 1 as it is, it does not reach the work 5 placed on the bottom of the water tank 1 sufficiently.
Deburring was reduced. At the same time, the abrasive 7 dropped near the water surface was easily overflowed and the amount of abrasive loss was increased.

The present invention has been proposed to solve the above problems, the purpose is to save the abrasive,
It is an object of the present invention to provide a polishing / cleaning material supply device for a deburring device having excellent deburring property, which realizes reduction in size and weight of the polishing / cleaning material supply device.

[Means for Solving the Problems] In order to solve the above problems, in the polishing / cleaning material supply device of the deburring device of the present invention, a suction port is arranged in the water tank and a movable discharge port is provided. A structural feature is that a slurry pump is provided in the vicinity of the nozzle device.

The polishing agent refers to a slurry in which a cleaning liquid and an abrasive are mixed, and deburrs the work to clean the work.

[Operation] The operation of the present invention having the above configuration is as follows.

That is, the slurry which is a mixed suspension of the cleaning liquid and the abrasive is sucked from the suction port of the slurry pump, and the slurry is discharged from the discharge port as it is into the water tank. Therefore, it is possible to circulate and supply the slurry from the slurry pump, and the configuration is very simple, so that the device can be made compact and lightweight.

Furthermore, since the discharge port is movable, it can be installed at any position, and deburring can be performed regardless of the size and shape of the water tank and the work. Moreover, since the polishing agent as a polishing agent drops into the water tank together with the cleaning liquid, the polishing agent sufficiently reaches the work placed on the bottom of the water tank and operates effectively. At the same time, since the amount of the polishing agent floating near the water surface is small, it is possible to prevent the loss of the polishing agent that overflows.

[Embodiment] An embodiment of the present invention as described above will be specifically described with reference to the drawings.

The same members as those of the conventional technique are designated by the same reference numerals and the description thereof will be omitted.

* Structure of Embodiment As shown in FIG. 1, the polishing / cleaning material supply device 23 includes a water tank 1 in which a cleaning liquid 2 is stored, and a jet nozzle 3 above. The water tank 1 is provided with a work transfer means 24 on the bottom surface,
Since the circulating water flow of the jet water flow 4 does not reach the peripheral portion, a bead pool 25 of beads serving as an abrasive is formed in a tapered shape. Further, the water tank 1 is provided with a drain pipe 10 to fulfill the overflow function.

Further, the abrasive cleaning material supply device 23 includes a slurry pump 26. The slurry pump 26 has a slurry suction port 27 near the bottom of the water tank 1, a slurry discharge port 28 adjacent to the jet nozzle 3 and on both sides of the jet nozzle 3 so as to sandwich the jet water flow 4. As the slurry pump 26, a low-speed large-capacity discharge type is effective in order to prevent the abrasion of the pipe by the abrasive 7.

* Operation of Embodiment The operation of this embodiment having the above-described configuration is as follows.

That is, the slurry 12 which is a mixed suspension of the cleaning liquid 2 and beads is sucked from the slurry suction port 27 of the slurry pump 26,
The slurry 12 is discharged as it is from the slurry discharge port 28 into the water tank 1.

As described above, in the polishing / cleaning material supply device 23, it is possible to circulate and supply the slurry as the polishing / cleaning material from the slurry pump 26, and moreover, since the configuration is very simple, the size and weight of the device can be reduced. Can be realized.

Further, since the slurry discharge port 28 is movable, it can be installed at any position, and deburring can be performed regardless of the size and shape of the water tank 1 and the work 5. Moreover, since the polishing agent 7 as the polishing agent drops into the water tank 1 together with the cleaning liquid 2, the polishing agent 7 sufficiently reaches the work 5 placed on the bottom of the water tank 1 and acts effectively. At the same time, since the amount of the abrasive 7 floating near the water surface is also small, the loss of the overflowed abrasive 7 can be reduced. Therefore, the long-term stable supply of the abrasive 7 can be assisted.

Other Embodiments The present invention is not limited to the above embodiments, and the slurry discharge port 28 arranged so as to sandwich the jet water flow may be a donut annular shape as shown in FIG.
It can be appropriately selected. Further, as shown in FIG. 3, a settling tank 30 for separating and settling the abrasive is provided at the end of the drainage pipe 10,
It is also possible to attach a suction port of a slurry pump to the settling tank 30 to suck up the slurry and reduce the loss amount of the abrasive.

[Effects of the Invention] As described above, according to the abrasive cleaning material supplying device in the deburring device of the present invention, the suction port is arranged in the water tank, and the movable discharge port is arranged close to the nozzle device. With a simple structure that includes a slurry pump, it is possible to reduce the size and weight of the device while saving the abrasive, and since the discharge port can be installed at any position, the dimensions of the water tank and the work, It is possible to provide a polishing / cleaning material supply device for an excellent deburring device, which enables efficient deburring without being affected by the shape.

[Brief description of drawings]

FIG. 1 is an overall explanatory view of this embodiment, and FIGS. 2 (A) and 2 (B).
Is a perspective view and a sectional view showing a slurry injection port of another embodiment, FIG. 3 is a general explanatory view of another embodiment, FIGS. 4 and 5 are general explanatory views of a conventional example, and FIG. It is sectional drawing of the projection nozzle in an example. 1 ... water tank, 2 ... cleaning liquid, 3 ... jet nozzle, 4
...... Jet water flow, 5 ... Work, 6 ... Mixing chamber, 7 ...
... Abrasive agent, 8 ... Abrasive agent projection device, 9 ... A projection nozzle,
1 ... Drain pipe, 11 ... Sampling pipe, 12 ... Slurry, 13 ... Slurry pump, 14 ... Separation tank, 15 ... Conveyor, 16 ... Drying oven, 17 ... Water pipe, 18 ... Reservoir , 19 ... Feed pump, 20 ... Transfer pipe, 21 ... Washing liquid jet port, 22 ... Abrasive agent projection port, 23 ... Abrasive material supply device, 24 ... Work transfer means, 25 ... Bead pool, 26 ... slurry pump, 27 ...
… Slurry inlet, 28,29 …… Slurry outlet.

Claims (1)

[Claims] 1. A water tank in which a cleaning liquid and an abrasive are stored and which has an overflow function for keeping the water level of the cleaning liquid constant, a conveying means for passing a work to be deburred into the water tank, and a work passage range. In a polishing / cleaning material supply device having a nozzle device for injecting an ultra-high-pressure jet water stream toward the nozzle device and a slurry pump having a suction port and a discharge port, the discharge port is close to the periphery of the nozzle device. In addition, the polishing / cleaning material supply device is characterized in that it is provided in a plurality and movable, and the plurality of discharge ports are arranged so as to sandwich the jet water flow.