JP3196628B2 - Pellet material draining device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method for cleaning rust, parts which cannot be dried by heating, metal pellets which are easily discolored, and non-metallic materials when cleaning. Device for removing water continuously at high speed.

[0002]

2. Description of the Related Art As is well known, a barrel polishing machine has an extremely wide field of application as a polishing means effective for polishing the surface of machine parts and removing burrs. In this case, when the work is a general mechanical part, the drying method after polishing by the main body of the polishing machine does not often cause a problem, but the work is relatively easy without electronic parts or weather resistance. In the case of a metal part which is liable to be oxidized and cause stains or the like, a serious problem may occur.
These problems can be solved by drying slowly over time.
In some cases, it can be cleared, but in many cases, there are many problems in terms of work efficiency, work cost, and the like.

For example, when the workpiece is an electronic component or the like, if there is a dry spot due to the influence of residual moisture, if the workpiece is a terminal or the like, a contact failure occurs, or a trouble such as a component operation failure occurs. May occur. Therefore,
Drying requires careful consideration and an appropriate drying method.

[0004]

However, since the pellet-shaped member is usually discharged from the main body of the polishing machine after being polished by the main body of the polishing machine, a large number of pellet materials are agglomerated. If the lump is transported to the dryer as it is, a large amount of water adheres, and the inside of the lump is not sufficiently dried, and the above-described drying unevenness may occur, causing spots and the like. In a remarkable case, it may be necessary to repeat the polishing again.

[0005] In this respect, conventionally, a lump of the pellet material discharged from the main body of the polishing machine is subjected to
Although air was blown from one or two air supply pipes to remove water, sufficient air did not reach the inside of the lump, and water could be removed efficiently in a short time. could not.

The present invention has been made in view of the above circumstances, and has been made from a state in which a large number of pellets are in a lump,
An object of the present invention is to provide a pellet material draining device that continuously and efficiently removes moisture while breaking up lumps.

[0007]

According to a first aspect of the present invention, there is provided a pellet material draining device for removing moisture from a pellet material which is conveyed in a lump by adhering moisture. A plate on which a pellet material is placed on a transport path and a large number of drain holes are opened, a nozzle for blowing air from above the plate toward the pellet material, and a nozzle which is close to the nozzle in the transport direction downstream of the pellet material with respect to the nozzle. ,
A swingable partition suspended along the direction in which air is supplied from the nozzle, and a gap through which the pellet material passes one by one between the partition and the plate. It is characterized by being provided.

[0008] In the pellet material draining device according to claim 1,
Since it has a swingable partition suspended from the nozzle in the direction of air blowing, when air is supplied from the nozzle, the partition vibrates. Turbulence occurs in Then, the pellet material around the partition plate is separated from the lump, and each of the pellet material rotates or turns over, so that drainage of the entire pellet material is promoted and completely performed. Then, the water drained from the pellet material is discharged from a drain hole opened in the plate. Further, the partition plate is close to the nozzle in the transport direction downstream of the pellet material with respect to the nozzle, and
Since there is a gap between the partition plate and the plate, through which the pellet material passes one by one, the pellet material to which the air is blown is transported from the gap one by one while removing moisture. Jump out to the outside on the downstream side in the direction.

According to a second aspect of the present invention, there is provided a pellet material draining device according to the first aspect, wherein the pellet material draining device is provided on an upstream side in a conveying direction of the pellet material with respect to the nozzle, in a blowing direction of air supplied from the nozzle. A swingable second partition plate suspended along is provided, and a gap through which the pellet material passes is provided between the second partition plate and the plate.

[0010] In the pellet material draining device according to claim 2,
Since the second partition plate is provided on the upstream side in the transport direction of the pellet material with respect to the nozzle, when the pellet material lump is transported, the second partition plate dams the lump and The lumps are broken, and the pellet material is gradually fed to the downstream side in the transport direction from a gap provided between the second partition plate and the plate. Further, by providing the second partition plate on the upstream side in the transport direction, it is possible to partition two directions of the upstream side and the downstream side in the transport direction between the second partition plate and the partition plate provided on the downstream side in the transport direction. When air is supplied from the nozzle in the state, the Venturi effect occurs due to the two plates, a faster air flow and a turbulent flow are generated, which can further promote drainage of the pellet material. .

According to a third aspect of the present invention, there is provided a pellet material draining device according to the first or second aspect, wherein the partition plate is provided with a steady rest for regulating a swing width of the partition plate. It is characterized by.

[0012] In the pellet material draining device according to the third aspect,
Since the partition plate is provided with a steady rest that regulates the swing width of the partition plate, when air is supplied vigorously from the nozzle, the partition plate shakes greatly, and a large gap generated therefrom The pellet material is not discharged as a lump. Further, the provision of the steady rest prevents the air from being discharged to the outside, and the partition plate vibrates within a certain range of the swing width, so that the turbulent flow can be reliably generated.

According to a fourth aspect of the present invention, in the pellet material draining device according to any one of the first to third aspects, the plate is provided with a mechanism for vibrating the plate. .

[0014] In the pellet material draining device according to claim 4,
Since the plate is provided with a mechanism for vibrating the plate, the water drained from the pellet material and accumulated on the plate can be efficiently dropped downward from the drain hole.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIGS.
An embodiment of a pellet material draining device according to the present invention will be described. 4 and 5, reference symbol A indicates a barrel polishing apparatus. FIG. 4 is a plan view showing the barrel polishing apparatus A, and FIG. 5 is a side view of the same.

The barrel polishing apparatus A is an apparatus for polishing the surface of a member in order to remove burrs on the work and to increase the cleanliness of the work surface. In the present embodiment, what is to be a work of the barrel polishing apparatus A has, for example, a roughly cylindrical shape with an outer diameter of 5 to 25 mm and a length of about 5 to 50 mm. It is cut into a desired length from a material of a length. The material is mainly a metal material, but may be a non-metal material such as plastic in some cases.

As shown in FIGS. 4 and 5, the barrel polishing apparatus A includes a swirling barrel type polishing machine main body 10 and a pellet material discharged from the polishing machine main body 10 in the left direction in the drawing (downstream in the transport direction). Side), a horizontal continuous dryer 30, and a drainer (pellet drainer) 40 for removing moisture attached to the pellet material before the pellet material is carried into the dryer 30. And a pre-drying device 50 for pre-drying the pellet material discharged from the draining device 40 by blowing air with two multi-hole nozzles.

The polishing machine body 10 is for polishing the pellet material to remove burrs and improve the surface cleanliness. At the time of polishing, water and a liquid compound for removing polishing dirt are used in combination, so that a large amount of water is attached to the pellet material discharged from the polishing machine main body 10. The transfer device 20 is provided on a punching plate 21 on which the pellet material is placed.
The pellet material is moved by applying a vibration in the vertical direction to the punching plate 21 from the outside. The punching plate 21 is provided with drain holes 22, 22,. I have.

The draining device 40 is shown in FIGS. As shown in FIG. 1, the draining device 40 includes:
It is located downstream of the polishing machine body 10 in the transport direction and is provided adjacent to the shooter 25. The draining device 4
0 denotes nozzles 41 and 42 having an air outlet opening downward.
Diaphragms (partition plates) 43 and 44 having upper ends adhered to outer surfaces of the nozzles 41 and 42, and diaphragms 43 and 44
Are provided on the inside and outside of the oscillating plate 43 to limit the swing width of the diaphragms 43, 44.

As shown in FIG. 2, the nozzles 41, 42
Among them, the front nozzle 41 located on the further downstream side with respect to the conveyance direction is piped in a direction above the conveyance device 20 and orthogonal to the conveyance direction, and the rear nozzle 4
2 is provided at a predetermined distance upstream of the front nozzle 41 in the transport direction.

For the vibrating plates 43 and 44, good results can be obtained by using any material such as a metal plate such as stainless steel or a lightweight material made of resin. The diaphragms 43 and 44
Among them, the front diaphragm 43 located further downstream with respect to the transport direction is disposed so that its surface is perpendicular to the transport direction, and the upper end thereof is located outside the downstream side of the forward nozzle 41 in the transport direction. While adhered to the side surface, its lower end is not fixed, but hangs down by its own weight. Similarly, the rear diaphragm (second partition plate) 44 is disposed so that its surface faces the surface of the front diaphragm 43, and the upper end thereof is the outer surface of the rear nozzle 42 on the upstream side in the transport direction. , While its lower end is not fixed and hangs down by its own weight. The front and rear diaphragms 43 and 44 are
In any case, the lower end is located above the upper surface of the punching plate 21 by a distance H, D apart from the upper surface of the punching plate 21 by the diameter of the pellet material W.

Are provided on the upstream and downstream sides of the diaphragms 43, 44 in the transport direction, respectively, and are separated from the inner and outer surfaces of the diaphragms 43, 44 by about 5 mm. The diaphragms 43, 4
4 is provided in the horizontal direction along the surface.

As shown in FIG. 3, the dryer 30 is of a horizontal double rotating drum type, and has an outer drum 31 and an inner drum 3.
3 are rotated in opposite directions. A heater 32 is provided on the outer entrance side of the outer drum 31, and the pellet materials W, W.
It is designed to be dried at 00 ° C. The outlet side of the inner drum 33 is provided with an air-permeable mesh screen portion 3.
4 so as to take in hot air from the heater 32 and exhaust water vapor from the pellet materials W.

In the dryer 30, an angle member (not shown) is provided on the inner surface of the screen portion 34 to protrude in the radial direction. In the dryer 30, if the pellet materials W, W... Are carried in a lump, the inside of the lump will be poorly dried. Are provided at four locations, and the blocks of the pellet materials W are crushed against the angle members during rotation of the drum to break the blocks into individual pieces and facilitate drying.

In this embodiment, when the pellet materials W are discharged from the polishing machine main body 10 in a lump with water adhered thereto, the pellet materials W, W. It is placed on the upper surface of the plate 21. The mass of the pellet materials W, W ... is transferred to the downstream side in the transport direction by the vertical vibration of the punching plate 21. At this time, the moisture separated from the pellet materials W, W ... 2
1, and the punching plate 21
Drop through the drain holes 22, 22,.

Further, when the mass of the pellet material W is conveyed to the downstream side in the conveyance direction, the mass hits the diaphragm 44 of the draining device 40, and the mass is broken down, and the mass collapses and the pellet is broken. The materials W, W ... are conveyed little by little in a single-stage plate shape without any overlap through the gap D. When air is supplied from the nozzles 41 and 42, the vibration plates 43 and 44 are suspended along the direction in which the air is blown out and are swingable. (A width of about 5 mm each before and after the transport direction) (see arrow B in FIG. 1). As a result, a turbulent flow is generated around the vibrating plates 43 and 44, and under the influence of the turbulent flow, the pellet materials W, W.

When air is supplied downward from the nozzles 41 and 42, the supply destination becomes negative pressure.
As shown by a dashed arrow in FIG. 1, external air is sucked in vigorously from an opening formed in an upper portion between the nozzles 41 and 42, and the effect of drainage is increased by air having a high flow velocity.

The vibration plate 43 is made of a pellet material W, W
Are provided downstream of the diaphragm 43 and the punching plate 21 so that the gaps H through which the pellet materials W, W. Are sequentially sprayed from the gaps H in a state where water is almost completely removed from the gaps H, as shown by arrows a in FIG.
Jump out to the outside.

In this embodiment, the vibration plate 4
In the vicinity of the lower ends of the vibration plates 43, 44, vibration stoppers 45, 46,.
Even when the air is supplied vigorously, the diaphragm 43,
44 does not swing largely toward the outside, and the pellet materials W, W. Further, by providing the steady rests 45, 46,..., The air is not discharged to the outside, and the diaphragms 43, 44 vibrate within a certain range of the swing width. The vibration plate 43,
The rocking of the pellet materials W, 44,... Between 44 is facilitated to remove water from the whole work.

Since the transporting device 20 of the present embodiment has a mechanism for vibrating the punching plate 21 in the vertical direction, the pellet material W is drained from the pellet material W and accumulated on the punching plate 21. The water can be efficiently dropped downward from the drain holes 22, 22,....

In this embodiment, the pellet material is
Although a metal pellet material is used, the present invention is not limited to this, and it is needless to say that the present invention can be applied to various materials and shapes. Further, in the present embodiment, the distance D between the rear diaphragm 44 and the punching plate 21 is about the diameter of the pellet material W, W..., But the present invention is not limited to this, and may be a larger dimension. Is also good. That is, the interval D is such that the rear diaphragm 44 is the pellet material W,
When the block of W ... is dammed and the block is broken, the pellet material W, W ... should be formed into a single-stage plate shape and may have a size that allows the pellet material to pass little by little.

[0032]

According to the first aspect of the present invention, the pellet material draining device includes a swingable partition plate suspended along the direction in which the air supplied from the nozzle is blown out.
When air is supplied from the nozzle, the partition plate vibrates, thereby generating a turbulent flow around the partition plate, and the pellet material around the partition plate is separated from the lump and each rotates, thereby, Draining of the pellet material can be promoted.
The water drained from the pellet material can be discharged from a drain hole opened in the plate. Further, the partition plate is close to the nozzle on the downstream side in the transport direction of the pellet material, and a gap is provided between the partition plate and the plate to allow the pellet material to pass one by one. Therefore, the pellet material to which the air is blown can sequentially and vigorously fly out of the gap to the outside on the downstream side in the transport direction.

[0033] In the pellet material draining device according to the second aspect,
Since the second partition plate is provided on the upstream side in the transport direction of the pellet material with respect to the nozzle, when the pellet material lump is transported, the second partition plate dams the lump and The lumps are broken, and the pellet material can be sent little by little to the downstream side in the transport direction from the gap provided between the second partition plate and the plate. Also, the second
By providing the partition plate on the upstream side in the transport direction, between the partition plate provided on the downstream side in the transport direction and the upstream and downstream directions in the transport direction, it is possible to partition the nozzle in this state. When air is supplied, more turbulence is generated, and the pellets can be shaken and agitated, whereby the pellets can be separated individually and drainage can be further promoted.

[0034] In the pellet material draining device according to the third aspect,
Since the partition plate is provided with a steady rest that regulates the swing width of the partition plate, when air is supplied vigorously from the nozzle, the partition plate shakes greatly, and a large gap generated therefrom The effect is obtained that the pellet material is not discharged as a lump. Further, the provision of the steady rest prevents the air from being discharged to the outside, and the partition plate vibrates within a certain range of the swing width, so that the turbulent flow can be reliably generated.

[0035] In the pellet material draining device according to claim 4,
Since the plate is provided with a mechanism for vibrating the plate, the water drained from the pellet material and accumulated on the plate can be efficiently dropped downward from the drain hole.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of a pellet material draining device according to the present invention.

FIG. 2 is a view taken along the line II-II in FIG.

FIG. 3 is a side view showing an embodiment of a dryer constituting a barrel polishing apparatus including a pellet material draining device according to the present invention.

FIG. 4 is a plan view showing one embodiment of a barrel polishing apparatus including a pellet material draining device according to the present invention.

FIG. 5 is a side view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 21 Plate 22 Drain hole 40 Pellet material draining device 41 Nozzle 43 Partition plate 44 Second partition plate 45 Steady stop 46 Steady stop W Pellet material

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-7-256637 (JP, A) Japanese Utility Model Showa 57-201321 (JP, U) Japanese Utility Model Showa 57-165214 (JP, U) Japanese Utility Model Showa 58- 14921 (JP, U) Japanese Utility Model Showa 57-185522 (JP, U) Japanese Utility Model Showa 57-191417 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B26B 17/00-17 / 34 B26B 3/092 B29B 9/16

Claims (4)

(57) [Claims] 1. A pellet material draining device (40) for removing moisture from a pellet material (W, W...) Which adheres moisture and is conveyed as a block, wherein the pellet material (W, W...) A plate (21) on which a pellet material (W, W...) Is placed on a transport path and a number of drain holes (22, 22...) Are opened, and a pellet material (W, W...) From above the plate (21).
A nozzle (41) for blowing air toward the nozzle, and a downstream direction of the pellet material (W, W ...) with respect to the nozzle (41) in the conveying direction, and a blowing direction of air supplied from the nozzle (41). And a swingable partition plate (43) suspended along. The pellet material (W, W...) Is provided between the partition plate (43) and the plate (21). A pellet material draining device, characterized in that a gap (H) is provided through which the pellet material passes. 2. The pellet material draining device according to claim 1,
In (0), a freely swingable suspension suspended in the direction in which air supplied from the nozzle (41) is blown upstream of the nozzle (41) in the transport direction of the pellet material (W, W ...). A gap (D) through which the pellet material (W, W ...) passes is provided between the second partition plate (44) and the plate (21). A pellet material draining device, which is provided. 3. The pellet material draining device (40) according to claim 1, wherein said partition plate (43, 44) is provided with said partition plate (43, 4).
4) A pellet material draining device provided with a steady rest (45, 46 ...) for regulating the swing width. 4. The pellet material draining device (40) according to claim 1, wherein the plate (21) has a mechanism for vibrating the plate (21). Pellet material drainer.