JP2008194792A - Vibration agitation type grinding cleaning machine and method therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a projection part of an object to be ground from being pinched between a movable member and a static member and facilitate discharge of the ground object to be ground by improving a grinding cleaning machine. <P>SOLUTION: A vibration barrel 8 mounting a shaking machine 10 is elastically supported by a spring 9, a supplying chute 11 is provided on the one end of the vibration barrel 8 to supply (arrow h) the object to be ground and discharged (arrow i) by overflowing from the other end. The object to be ground (hidden in the figure) in the vibration barrel 8 is agitated by the vibration, receives projection (arrow a) of a grinding material while spirally flowing, and uniformly ground and cleaned. When finishing grinding cleaning operation, the object to be ground is discharged by opening the door which is not shown in the figure like the arrow j. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an apparatus and a method for polishing by projecting a polishing material onto a large number of small workpieces.

FIG. 5 is a schematic view showing a conventional example in which a polishing material is projected onto a large number of small workpieces for polishing.
As illustrated in FIG. 5A, the object to be polished 2 is put in the barrel 1, and the abrasive is projected from above by the abrasive material projector 3 as indicated by an arrow a.
The barrel 1 is made of a perforated plate in order to collect the polished material that has been projected and has finished the role of scouring. The abrasive material falls as indicated by an arrow b, and is returned to the abrasive material projector 3 and circulated by an conveyer or an elevator (both not shown) as indicated by an arrow c.

The object 2 to be polished in the barrel 1 must be evenly cleaned.
In other words, when looking at a single object to be studied, it must be uniformly projected from the front, rear, left, and right directions. In addition, even when looking at a large number of objects to be polished, the same level of cleaning must be performed. This is a common requirement (except for special exceptions) when abrading material is projected onto a large number of small workpieces.
For this purpose, means for stirring the object to be cleaned 2 in the barrel 1 is provided.

FIG. 5B is a schematic diagram illustrating the conventional example of FIG.
An endless perforated belt 6 is wound around a plurality of pulleys 4 to form a trough 7 having a concave cylindrical surface, and is rotated around as indicated by arrows ee-e. The end surface of the concave cylindrical surface is covered with a rotating disk 5. This rotating disk rotates as indicated by an arrow d.
The object to be polished (not shown) placed in the trough 7 is scraped up by the circumferential rotation of the perforated belt 6 and stirred and rolled as indicated by an arrow f.

The conventional example described above with reference to FIG. 5 is widely used. However, since the perforated belt 6 is subjected to the projection of the abrasive, the wear damage occurs early and the running cost is high.
Therefore, in order to extend the service life of the endless annular belt, Japanese Patent Application Laid-Open No. 2005-297116 “Sweeping method and cleaning device” cited as Patent Document 1 has been developed and gained popularity.
The present invention uses a comb-like metal belt.

The polishing apparatus according to the above known invention is excellent in durability because the endless annular belt is made of metal, but the protrusion of the object to be cleaned is sandwiched between the rotating belt and the stationary member. There was a fear.
In order to prevent such a problem, a new polishing apparatus shown in FIG. 6 has been developed.
This is an invention created by the present inventor and filed separately by the present applicant (Japanese Patent Application No. 2006-24487, hereinafter referred to as an invention related to an undisclosed prior application).

The exciter 10 is mounted on a half-shaped barrel (8) whose upper side is open. Since the barrel vibrates when the vibrator is operated, this is called a vibration barrel 8. Reference numeral 9 denotes a spring, which elastically supports the vibration barrel.
The vibrating barrel 8 can be rotated around a pivot shaft 8d.
When the vibration barrel 8 is rotated about 60 degrees clockwise (clockwise) from the state shown in the drawing and the opening thereof is directed upward, and the vibrator 10 is operated, the object 2 is agitated. That is, as each object to be scanned rotates, a large number of objects to be swirled flow in a vortex (not a hydrophysical flow, but exhibit a similar behavior).

While the material to be polished is swirled in the vibration barrel 8, the material to be polished is projected from a polishing material projector (not shown) to perform uniform polishing, and then the material to be polished is as follows. Is discharged.
In FIG. 6, a horizontal line is shown with a symbol H. When the vibration barrel 8 is rotated to the illustrated posture and the inclination angle θ is given to the bottom plate, the object 2 is discharged to the lower left in the figure. A characteristic phenomenon here is that the object to be cleaned is discharged even if the inclination angle θ is small. The reason is that the to-be-seen object to which vibration is applied flows in a pseudo manner.
As described above, it was possible to obtain a scouring attachment that is excellent in durability and that is easy to carry out the product without fear of the projecting portion of the scoured object being caught.
JP 2005-297116 A

The invention according to the previously-disclosed prior application shown in FIG. 6 has excellent performance as compared with the conventional example, and thus received appreciation and praise from a trial user.
As a result of continuing research and development after the inventors filed a patent application after inventing the scouring device according to the previously unknown prior application, the present inventor confirmed that there is room for further improvement as described below. did.

As can be easily understood from FIG. 6, this vibration agitation type scouring apparatus performs a so-called batch-type operation and does not perform a flow operation.
That is, a predetermined amount of the object to be polished is put into the vibration barrel 8 and subjected to polishing, and when the polishing process is completed, the object is discharged as shown in the figure.
By repeating this operation hundreds or thousands of times, industrial mass production is performed.

  The present invention has been made in view of the above-mentioned circumstances, and the object thereof is to further improve the flow stirring work without impairing the advantages of the vibration agitation type polishing apparatus according to the above-mentioned unknown prior invention. Make it possible. Needless to say, improvements are made on the premise that there is no problem in safety and pollution-free, without increasing the manufacturing cost, without increasing the size and weight.

The basic principle of the present invention will be described with reference to FIG. 2 corresponding to the first embodiment. In this [Means for Solving the Problems] column, drawing symbols are added in parentheses for easy comparison with the drawings, but these bracketed symbols limit the configuration of the present invention as shown in the drawings. Not what you want.
Reference numeral 8 indicates a vibration barrel similar to or similar to that in FIG. 6 (unknown prior invention) (the vibrator is not shown).
(See FIG. 2 (A)) A chute 11 is provided at one end (left end in the figure) of the vibration barrel 8 as an object to be cleaned supply means, and the other end (right end in the figure) is to be studied. An opening 8e is provided as a scavenge carrying-out means.

It should be noted here that a large number of objects to be studied are pseudo-flowed by a new means of applying vibration to the barrel.
In the prior art, the object to be studied was considered to be a solid substance, so it was not a dream that the object to be studied supplied to the left end would walk to the right end by itself. However, the to-be-scanned object group that has been fluidized by vibration acts to keep the upper surface of the group horizontal, and if the carry-out opening 8e is lower than the lower end of the chute 11, from the chute 11 to the carry-out opening 8e. It moves and falls from the opening 8e (flowing down metaphorically).

While the object to be studied 2 moves from the chute to the opening 8e, the individual objects to be examined seen microscopically rotate, and the group of objects to be examined seen macroscopically are stirred and uniformly polished while swirling. Receives sweeping material.
When the work is finished after a predetermined amount of the object to be polished is finished, if the door 16 of the opening 8g at the bottom of the barrel is opened as shown in FIG. Discharged.

The configuration of the invention according to claim 1 created using the above-described operating principle (see FIG. 1)
In an abrading machine of a type in which an abraded material is projected (arrows a and a ′) while stirring a large number of objects to be polished (2) in a barrel,
The vibrator (10) is mounted on the barrel, and the vibratory agitator type agitator that agitates the object to be studied by operating the vibrator and applying vibration to the barrel,
A supply means (chute 11) for the object to be cleaned is provided near one end of the barrel,
In addition, a discharge means (arrows i, j) for the object to be cleaned is provided near the other end of the barrel.

In addition to the constituent features of the invention of the first aspect, the configuration of the vibration agitating type scavenger according to the invention of claim 2 (see FIG. 1),
The barrel is installed with an inclination,
It is characterized in that the side provided with the supply means (supply chute 11) of the object to be cleaned is raised and the side provided with the discharge means (arrows i, j) of the object to be cleaned is lowered.

In addition to the constituent features of the invention of claim 1 or claim 2 (see FIG. 3), the configuration of the vibration agitating type abrasive cleaner according to the invention of claim 3
The discharge means for the object to be cleaned provided in the barrel is an opening (8e) for carrying out the object to be cleaned.
A means for moving the position of the carry-out opening (8e) up and down is provided.

In addition to the constituent features of the invention of claim 1 or claim 2 (see FIG. 4), the configuration of the vibration agitating type polishing machine according to the invention of claim 4
The object to be cleaned ejected provided on the barrel is an opening (8 g) with a door for carrying out the object to be cleaned.
A means (for example, 17) for opening and closing the door (16) provided in the opening is provided.

The vibration stirring type cleaning method according to the invention of claim 5 (see FIG. 1),
In a vibration agitation type cleaning method in which a large number of objects to be polished are placed in a barrel, and the abrasive is projected while agitating the object to be polished by applying vibration to the barrel.
By introducing the object to be cleaned near one end of the barrel (arrow h) and overflowing the object to be cleaned from the other end of the barrel (arrow i), It is characterized by changing things sequentially and continuously.

When the invention of claim 1 is applied, the object to be polished in the vibration barrel can be made to flow automatically and continuously from the supply unit to the carry-out unit, and can be automatically carried out.
For this reason, no trouble is required for carrying out the object to be polished after the polishing process, and it is possible to uniformly perform the polishing process on a large number of objects to be polished.

When the invention of claim 2 is applied together with the invention of claim 1, continuous flow of the object to be cleaned in the vibration barrel is performed more smoothly, and a predetermined amount of object to be cleaned is cleaned. When processing is completed, the entire object to be polished in the vibration barrel can be automatically carried out, which is preferable.

  When the invention of claim 3 is applied together with the invention of claim 1, the position of the unloading opening 8 e can be moved up and down, so that the position of the opening is increased to increase the amount of object to be cleaned in the barrel. In this state, the polishing process is performed, the position of the opening is lowered, and the entire amount of the object to be polished in the barrel can be automatically carried out.

When the invention of claim 4 is applied together with the invention of claim 1 or claim 2,
Since an opening with a door is provided, the opening / closing door is closed and the object to be cleaned in the barrel is increased to carry out scouring, and the opening / closing door is opened and the object to be cleaned in the barrel is opened. The entire amount of objects can be automatically carried out.

By applying the inventive method of claim 5, the object to be polished in the vibration barrel can be automatically and continuously flowed from the supply unit to the carry-out unit, and can be automatically carried out.
For this reason, a large number of objects to be polished are uniformly subjected to the polishing process, and it is not necessary to carry out the removal of the objects to be polished after the processing.

FIG. 1 is a schematic view illustrating one embodiment of a vibration agitation type sharpener according to the present invention.
Reference numeral 8 denotes a vibration barrel 8 to which a vibration generator 10 is attached.
The vibration barrel 8 is basically a similar member to the vibration barrel 8 (FIG. 6) in the previously-disclosed prior application previously described as [Background Art], but the internal polishing target is the same. In order to eject the object 2, it is not tilted by rotating around the pivot shaft 8d.
The vibration barrel 8 in this embodiment (FIG. 1) has a support frame 8a provided with reinforcing ribs 8b, and this support frame 8a is elastically supported by a spring 9, but its position and posture are Vibrate in place without changing.

In FIG. 1, the vibration barrel 8 is drawn without being cut, so that the object to be cleaned is hidden and cannot be seen. The internal object to be cleaned will be described in detail later with reference to FIG.
The object to be polished is introduced as indicated by an arrow h by a chute 11 which is a supply means provided at one end (left end in this example) of the vibration barrel 8 and enters the vibration barrel 8.
The abrasive material is projected as indicated by arrows a and a 'by the abrasive material projector 3, and the object to be polished in the vibration barrel is removed.

The object to be polished after being cleaned is an opening (hidden in this figure) which is a carrying-out means provided at the other end (right end in this example) of the vibration barrel 8. Details will be given later with reference to FIG. explain)
Is discharged as shown by an arrow i and sent to the next process by the steady carry-out chute 14. The above is a steady operation.
For example, at the end of the evening work, when a predetermined amount of the object to be polished is finished, an opening provided near the bottom of the vibration barrel 8 as shown by an arrow j (hidden in this figure. See FIG. 2). Then, it is discharged as indicated by arrow j and sent to the next process by the end carry-out chute 15.
The polishing material that has performed the scouring action falls from a large number of small holes (hidden in the figure) drilled in the bottom wall of the vibration barrel 8 and is collected by the collecting conveyor 12, and is carried out by the carry-out conveyor 13 and the elevator (not shown). ) To return to the abrasive material projector 3.

FIG. 2 is a schematic cross-sectional view of the vibration barrel 8. Although not shown, the vibration barrel 8 is equipped with the vibrator 10 as described above.
A supply chute 11 as a means for carrying in the object to be scanned 2 is provided at one end (left end in this example) of the vibration barrel, and on the opposite side (right end in this example) as a carrying-out means. A carry-out opening 8e is provided.

When the vibrating barrel 8 vibrates in FIG. 2 (A), a large number of articles 2 to be studied show pseudo fluidity, and the upper surface of the group of objects to be studied is almost horizontal.
For this reason, the object to be polished near the right end of the vibration barrel 8 falls from the carry-out opening 8e as indicated by an arrow i. It feels spilling sensuously, and it overflows and flows in a metaphorical way.
The arrow i representing the above-described scoured object discharge operation corresponds to the arrow i in FIG.

Considering that the group of objects to be studied comprising a large number of objects to be studied has pseudo fluidity, the number of objects to be studied is almost the same as the number of objects to be studied that are carried in from the supply chute 11. Is understood to be discharged from.
In this way (in figurative terms), the group of objects to be studied flowing from the supply chute 11 is
While stirring and flowing in the vibration barrel 8, it is sent to the carry-out opening 8e and constantly sent.

Each object 2 to be studied moves to the right in the figure at a speed proportional to the supply amount from the supply chute 11 while rotating. For this reason, the object 2 to be polished is subjected to uniform cleaning.
(See FIG. 1) Even if the two arrows a and a ′ representing the projection of the abrasive are not exactly equal, the object to be polished 2 moves from the left end to the right end in the vibration barrel 8. You will receive uniform cleaning.
Compared with the invention according to the previously-disclosed prior application (FIG. 6), the vibratory agitator type abrading machine of the present embodiment is not only easy to carry out the object to be studied but also has a large number of objects. An excellent practical effect is achieved in that the polishing of the polished material is performed uniformly.

As shown in FIG. 2B, it is recommended that the vibration barrel 8 be installed with a slight inclination.
The above inclination increases the supply chute 11 side and lowers the carry-out opening 8e side. By inclining in this way, the swirl flow of the object to be cleaned 2 in the vibration barrel 8 is performed more smoothly, and as will be described below, the object to be cleaned in the vibration barrel is subjected to the end operation of the polishing operation as described below. It is convenient because all items can be easily carried out.
According to the inventor's experimental study, it is recommended that the tilt angle be set in the range of 0 to 15 degrees.
As can be easily understood from the operation and effects described above with reference to FIGS. 2A and 2B, the carry-out opening 8e in the present embodiment does not necessarily have the appearance of “opening” as the name indicates. For example, it may be a notch, or the end wall may be lowered.

When the polishing work is to be completed, such as when the planned quantity of the object to be polished 2 is finished or when the evening work end time is reached, the object to be removed from the supply chute 11 as shown in FIG. Stop the supply of abrasives. As a result, the amount of the object to be polished 2 in the vibration barrel 8 gradually decreases.
In this case, if the inclination is given to the vibration barrel 8, the object to be cleaned contained in the vibration barrel is automatically combined with the action of the vibration and the action of the inclination, and It is discharged smoothly as shown by arrow j.
The arrow j representing the above-described scoured object discharge operation corresponds to the arrow j in FIG.

As can be understood from the operation described above with reference to FIGS. 1 and 2, the opening as the discharge means provided in the vibration barrel is at a relatively high position during steady operation, and is relatively low at the end of work. It is necessary to be in a low position.
A specific configuration for moving the position of the opening in this way will be described below with reference to two examples.

3 and 4 are side views each illustrating a mechanism for changing the position of the carry-out opening.
The embodiment of FIG. 3 is a system in which an opening is provided in a plate-like member forming the end face of the vibration barrel, and the height of the opening position is changed by rotating the plate-like member.
The embodiment of FIG. 4 is a system in which two openings are arranged on the upper and lower sides, and a door provided in the lower opening is opened and closed (in this case, the upper opening may be left open). There is no problem. Details will be described later).

FIG. 3 (A) is a drawing of FIG. 2 (A) viewed from the right side of the figure. However, FIG. 2 (A) is a schematic diagram, and FIG. 3 (A) is a substantial external view. Therefore, please keep this difference in mind.
In FIG. 2A, the wall forming the right end surface of the vibration barrel 8 is a member integral with the barrel main body, and the wall plate is depicted as having a carry-out opening 8e. In the embodiment 3 (A), the end face wall of the barrel is formed by the main body portion of the vibration barrel 8 and a separate rotating end plate 8c.

The rotary end plate 8c is rotatably supported by a pivot shaft 8d and can be rotated by a driving means (not shown) (the main body of the vibration barrel 8 does not rotate).
If the rotating end plate 8c is positioned relatively high as shown in FIG. 3A, steady operation can be performed as shown in FIGS. 2A and 2B.
When the rotary end plate 8c is rotated as shown by an additional circular arc arrow to lower the position of the carry-out opening 8e as shown in FIG. 3B, the state conforms to FIG. It can be discharged to finish the operation of the scourer.

FIG. 4 is also an embodiment different from the above for changing the height of the opening position.
(A) of this figure is a side view, (B) is a partial front sectional view, and (A) and (B) both figures form a two-sided view.
In this embodiment, the end face plate of the vibration barrel 8 is formed integrally with the main body portion, and a fixed position opening 8f is formed at a relatively high position. This fixed position opening 8f does not move and serves to discharge the object to be cleaned in a steady operation.

An opening 8g with a door is formed in the vicinity of the bottom surface of the barrel below the fixed position opening 8f. The opening / closing door 16 is opened and closed by a cylinder 17.
If the opening / closing door 16 is closed, the steady operation can be performed while discharging the object to be cleaned from the fixed position opening 8f (the operation state shown in FIGS. 2A and 2B).
When the open / close door 16 is opened, as shown in FIG. 2 (C), the entire object to be cleaned in the barrel can be discharged and the operation can be terminated. In this case, since the amount of the object to be cleaned in the vibration barrel 8 is reduced, there is no particular problem even if the fixed position opening 8f remains open.

1 is a schematic front view illustrating an embodiment of a vibration agitation type sharpener according to the present invention. Operational explanatory diagram of the embodiment of the vibration agitating type sanding machine according to the present invention The side view for demonstrating the structure and effect | action in one Embodiment of this invention Side view for explaining configuration and operation in an embodiment different from the above Schematic diagram for explaining a conventional example of an abrasive Cross-sectional view of a polishing apparatus according to an unknown prior invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 2 ... Object to be studied 3 ... Abrasive material projector 8 ... Vibration barrel 8a ... Support frame 8b ... Reinforcement rib 8c ... Rotating end plate 8d ... Pivot shaft 8e ... Unloading opening 8f ... Fixed position opening 8g ... Opening with door 9 ... Spring 10 ... Oscillator 11 ... Supply chute 12 ... Collecting conveyor 13 ... Unloading conveyor 14 ... Normal unloading chute 15 ... End unloading chute 16 ... Opening / closing door

Claims (5)

In an abrading machine that projects a material while stirring a large number of materials to be agitated in a barrel,
A vibratory agitator that is equipped with a vibrator on the barrel and stirs the object to be studied by operating the vibrator and applying vibration to the barrel.
A means for supplying the object to be cleaned is provided near one end of the barrel,
A vibratory agitation type scavenger characterized in that a means for discharging the object to be cleaned is provided near the other end of the barrel. The barrel is installed with an inclination,
2. The vibration agitation type scavenger according to claim 1, wherein the side provided with the supply means for the object to be polished is raised and the side provided with the means for discharging the object to be polished is lowered. The means for discharging the object to be cleaned of the barrel is an opening for carrying out the object to be cleaned.
The vibration agitating type scrubber according to claim 1 or 2, wherein means for moving the position of the carry-out opening up and down is provided. The means for discharging the object to be cleaned in the barrel is an opening with a door for carrying out the object to be cleaned.
The vibration agitating type scavenger according to claim 1 or 2, wherein means for opening and closing the door is provided. In a vibration agitation type cleaning method in which a large number of objects to be polished are placed in a barrel, and the abrasive is projected while agitating the object to be polished by applying vibration to the barrel.
While putting the material to be cleaned near one end of the barrel, the material to be cleaned overflows from the vicinity of the other end of the barrel, thereby sequentially and continuously A vibration agitation type scouring method characterized in that it is replaced with

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