JPH0731965Y2 - Barrel type shot blasting machine - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a barrel type shot blasting machine which removes burrs from molded articles such as relatively small and compact plastics and rubbers.

[0002]

2. Description of the Related Art A conventional barrel type shot blasting machine uses a cylindrical basket so that a projection material from a projection machine having an upper opening in a processing chamber is projected inside.

[0003]

[Problems to be Solved by the Invention] A conventional barrel type shot blasting machine which is small and light, for example, a disposable writer.
When attempting to remove burrs on a work such as an O-ring having an outer diameter of 4 mm, which is used for such things as the O-ring etc. due to the intense projection force of the projection material projected into the basket from the projector There was a drawback that the work was scattered from the inside of the basket and the burr could not be removed effectively.

In order to solve this drawback, it has been considered to cover the opening of the basket with a wire netting lid and project the projection material into the basket from the wire netting lid. In the case of the work, the mesh of the wire mesh lid becomes small, and the wire mesh lid hinders the projection force of the projection material, and the wire mesh lid is severely damaged.

The present invention has been made in view of the above-mentioned conventional drawbacks.
Even if it is a small and lightweight work, it does not scatter to the outside,
Moreover, it is an object of the present invention to provide a barrel-type shot blasting machine that can perform projection without impairing the projection force of the projection material.

[0006]

In order to achieve the above object, in a barrel type shot blasting machine comprising a processing chamber provided with a basket and a projector for projecting a projection material into the basket of the processing chamber, A basket main body formed by using a punching metal or a metal net having a through hole smaller than that of a product to be processed having an open upper end, and projecting onto a central portion detachably attached to the upper end opening of the basket main body A barrel-type shot blasting machine is composed of a semi-circular ring-shaped cap with a material inlet.

[0007]

In the barrel type shot blasting machine constructed as described above, the projection material projected from the projection machine is projected into the basket main body from the projection material input port of the cap. The work that has been struck by the blast material in the basket body scatters, but falls along the inner wall surface of the cap to the lower part of the basket body, and the work is agitated.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below with reference to the embodiments shown in the drawings.

In the first embodiment of the present invention shown in FIGS. 1 to 5, reference numeral 1 is an airtight housing. Reference numeral 2 denotes a hopper fixed inside the housing 1 so as to partition the inside of the housing 1 into an upper processing chamber 3 and a lower processing chamber 4.

Reference numeral 5 denotes a one-sided opening / closing door that opens and closes an opening 6 formed in the housing 1 in a portion where the upper processing chamber 3 is located so as to be able to seal.

Reference numeral 7 is a rotating device for rotating a basket 8 for storing deburring products (work) in the upper processing chamber 3. The rotating device 7 is an outer wall surface 1a of the casing 1 and the hopper 2. In addition, for example, a rotary shaft 9 rotatably attached in a tilted state of 30 to 60 degrees, a support body 10 detachably supporting the basket 8 fixed to a tip end portion of the rotary shaft 9, A motor mounted on the casing 1 for rotating the rotary shaft 9 connected to the rear end of the rotary shaft 9.
11 and 11.

As shown in FIGS. 3 and 4, the basket 8 is attached to an inner wall surface of the basket main body 12 which is formed in a cylindrical shape by using a perforated plate such as a wire net or punching metal. The basket body 1
A plurality of, for example, four stirring blades 13, 13, 13, 13 for stirring the work stored in the basket 2 and the basket body 12 of the basket body 12 so as to cover the upper opening 12a. It is composed of a semi-circular ring-shaped cap 14 having a projecting material charging port 14a formed in the central portion detachably attached to the upper portion.

Reference numeral 15 is a sorting device installed in the lower processing chamber 4 and immediately below the opening 2a of the hopper 2 so that vibration is transmitted to the hopper 2. The sorting device 15 is the hopper. A vibrating screen 16 for burr selection, which is arranged immediately below the second opening 2a and selects burr larger than the blast material.
And a blasting material selecting vibration screen 17 for selecting blasting material provided at a lower position of the burr selecting vibrating screen 16, and a lower part of the blasting material selecting vibration screen 17 via a support base 18. Further, a dust storage container 19 for storing dust smaller than the shot material, and a burr storage tank 2 for storing the burr selected by the burr selection vibrating screen 16 through the discharge pipe 20.
1, a discharge pipe 23 that guides the shot material selected by the vibrating screen 17 for selecting the shot material to the shot material storage tank 22, and a dust that stores the dust stored in the dust storage container 19 through the discharge pipe 24. It is composed of a storage tank 25.

Reference numeral 26 is a one-way open / close door that can open and close the opening 27 formed in the housing 1 at the position where the burr storage tank 21 and the dust storage tank 25 are located in a sealed state.

The blast material storage tank 22 vibrates the blast material storage body 28 in which the blast material is stored, and the blast material stored in the blast material storage body 28 mounted on the side surface of the blast material storage body 28. The vibrating motor 29 to be applied is located below the discharge pipe 23 of the blast material storage tank main body 28, and is attached to the blast material storage tank main body 28 so as to guide the blast material from the discharge pipe 23 to a substantially central portion. It is composed of a shoe 30.

Reference numeral 31 is a projector capable of projecting a projection material having an impeller 32 portion covered with a lid 33 on the top plate 1b portion of the casing 1 onto a deburring product housed in the basket 8. . The projectile material projected from the projector 31 is the projectile material inlet 14 a of the cap 14 of the basket 8.
Although the projection material is projected into the basket body 12, the projection material input port 14a is in the shape of a truncated cone having a gradually decreasing diameter. Therefore, the projection material is reliably input into the projection material input port 14a and is focused. Can be guided into the basket body 12.

Reference numeral 34 is a projection material transport pipe for sucking and supplying the projection material in the projection material storage tank 22 by driving the projection device 31, and one end of the projection material transportation pipe 34 is the projection material storage tank 22.
The projection material transport pipe main body 35 having an opening inside and the other end connected to the suction side of the projector 31, one end communicates with the projection material transport pipe main body 35 on the projector 31 side, and the other end is the casing. It is composed of a bypass pipe 37 having a control valve 36 for adjusting the suction pressure opened in the upper processing chamber 3 of the body 1.

Reference numeral 38 denotes an inert gas supply device for efficiently transporting the projection material through the projection material transport pipe 34. One end of the inert gas supply device 38 is one end of the lower processing chamber 4 An intake pipe 39 which is attached to the projection material storage tank 22 so that the other end thereof is located in the trumpet-shaped opening 35a of the projection material transport pipe main body 35; It is composed of a gas supply pipe 41 for supplying an inert gas connected to the site via a control valve 40.

Reference numeral 42 is a refrigerant supply device for supplying a refrigerant such as liquefied inert gas such as liquefied nitrogen or liquefied carbon dioxide gas into the upper processing chamber 3, and the refrigerant supply device 42 is introduced into the upper processing chamber 3. A refrigerant supply pipe 44 in which an electromagnetic valve 43 for supplying a refrigerant is interposed, a temperature sensor 45 for measuring the temperature in the upper processing chamber 3, and an opening / closing operation of the electromagnetic valve 43 according to a command from the temperature sensor 45. The controller 46 is operated to adjust the supply amount of the refrigerant.

Reference numeral 47 denotes an exhaust pipe which is attached to the top plate 1b of the housing 1 so as to open to the upper processing chamber 3 and which releases the vaporized gas generated in the upper processing chamber 3 to the atmosphere.

The barrel type shot blasting machine 4 having the above construction
8 stores the deburring product in the basket 8 and operates the refrigerant supply device 42 to cool the inside of the upper processing chamber 3 to a predetermined low temperature. After that, the rotating device 7, the sorting device 15, the vibration motor 29, the inert gas supply device 38, and the projector 3
Activate 1. By the operation of each of these devices, the projection material 49 in the projection material storage tank 22 is moved to the impeller 3 of the projector 31.
2 is sucked by the drive of the cap 8 of the basket 8
The projection material 49 is projected toward the projection material input port 14a, and the projection material 49 is focused at the projection material input port 14a.
It is thrown in.

At this time, since the basket 8 rotates, the deburring products stored inside the stirring blades 14, 14, 1
The blasting material can be efficiently swirled by 4, 4 and the blasting material can be efficiently blasted onto the deburring product. In addition, the deburring product is fragile due to cooling, so that the deburring can be efficiently removed.

When the deburring product is small and light, the deburring product scatters due to the intense projection force of the shot material. However, as shown in FIG. 5, the deburring product collides with the semicircular inner wall surface of the cap and the basket. It falls to the bottom of the main body 12, and the deburring product is automatically agitated without scattering to the outside.

Further, the blast material 49 projected into the upper processing chamber 3 surely drops to the sorting device 15 by the hopper 2 to which the vibration of the sorting device 15 is transmitted, and the blast material larger than the blast material is generated in the sorting device 15. The blast material 49 is sorted into blast material and dust smaller than the blast material, and the blast material 49 thus selected is naturally dropped and supplied into the blast material storage tank 22.

The blast material stored in the blast material storage tank 22 is
The impeller 32 of the projector 31 vibrates and is sucked into the projector 31 through the projection material transport pipe 34. At this time, the projection material and the inert gas or other supply device 38 are mixed with the inert gas or the like. Since it is sucked, it is efficiently sucked and transferred smoothly. Further, the control valve 36 of the bypass pipe 37 is adjusted to adjust the suction pressure of the projection material sucked into the projector 31 for use.

When burrs are removed from the deburring product in the basket 8, the operation of the projector 31 and the rotating device 7 is stopped, the opening / closing door 5 is opened, the cap 14 is removed, and the basket body is opened through the opening 6. After the treated product in 12 is taken out, the untreated deburring product is stored and the deburring work is performed by the same operation as described above.

[0027]

Different Embodiments of the Present Invention Next, different embodiments of the present invention shown in FIGS. 6 to 13 will be described. In the description of these different embodiments of the present invention, the same components as those of the first embodiment of the present invention will be denoted by the same reference numerals and redundant description will be omitted.

The second embodiment of the present invention shown in FIGS. 6 to 8 is mainly different from the first embodiment of the present invention in a basket 8A. This basket 8A has a perforated plate 12b only at a portion near the lower portion. Basket body 12 formed by using
The basket 8 formed in this way is that A is used.
By using A, the flow of air in the basket body 12A can be regulated in the arrow direction. Such a barrel type shot blasting machine 48A may be used.

The third embodiment of the present invention shown in FIGS. 9 to 11 is mainly different from the first embodiment of the present invention in a basket 8B, which is an upper opening 12a of a basket body 12. A cap 14A having a lid shape that detachably covers the cap 14A, and a charging cylinder 50 that forms a projection material charging hole 14a that is formed in a substantially central portion of the cap 14A and projects into the basket main body 12 and has successively smaller diameters. . Using the basket 8B formed in this way,
The barrel type shot blasting machine 48B may be used.

The fourth embodiment of the present invention shown in FIGS. 12 and 13 is mainly different from the first embodiment of the present invention in that a projector 31A having a nozzle 51 is used and a refrigerant supply device is used. It may be configured in this way in that the barrel type shot blasting 48C is used.

As is clear from the above description, the following effects can be obtained in the present invention.

(1) A processing chamber provided with a basket,
In a barrel type shot blasting machine equipped with a projecting device for projecting a projecting material into a basket of this processing chamber, the basket is formed by using a punching metal or a wire net having a through hole smaller than that of a product to be processed whose upper end is opened. It is composed of a basket body and a semi-circular ring-shaped cap that has a projection material input port formed in the central portion that is detachably attached to the upper end opening of the basket body. The projectile material can be guided into the basket body in a focused state by the projectile material inlet of the cap. Therefore, the shot material can be efficiently projected onto the deburring product to remove the burr.

(2) According to the above (1), even a small and lightweight deburring product that is scattered by the projection of the projection material can be reliably prevented from being scattered to the outside by the cap, and the work can be performed efficiently. it can.

(3) According to the above (1) and (2), the deburred product is scattered by the projection of the projection material, so that the deburred product can be automatically agitated and the deburr can be removed efficiently. .

(4) According to the above (1), the structure is simple and can be easily implemented.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view showing a first embodiment of the present invention.

FIG. 2 is a schematic vertical sectional view showing a first embodiment of the present invention.

FIG. 3 is a sectional view of the basket.

FIG. 4 is a sectional view taken along line 4-4 of FIG.

FIG. 5 is an explanatory diagram of a projection state of a projection material.

6 to 8 are explanatory views showing a second embodiment of the present invention.

9 to 11 are explanatory views showing a third embodiment of the present invention.

12 and 13 are explanatory views showing a fourth embodiment of the present invention.

[Explanation of symbols]

1: housing, 2: hopper,
3: Upper processing chamber, 4: Lower processing chamber, 5: Open / close door, 6: Opening part, 7: Rotating device, 8, 8A, 8B: Basket, 9: Rotating shaft, 10: Support, 11: Motor -, 12, 12A: basket main body, 13: stirring blade, 14, 14
A: cap, 14a: shot material charging port, 1
5: Sorting device, 16: Vibrating screen for burr sorting, 17:
Vibrating screen for projectile selection, 18: support,
19: dust container, 20: discharge pipe,
21: burr storage tank, 22: shot material storage tank,
23: discharge pipe, 24: discharge pipe,
25: Dust storage tank, 26: Open / close door,
27: Opening part, 28: Projectile material storage tank main body, 29: Vibration motor, 30: Shoot
G, 31, 31A: Projector, 32: Impeller,
33: Lid, 34: Projection Material Transport Pipe,
35: blast material transport pipe body, 36: control valve,
37: bypass pipe, 38: supply device for inert gas,
39: intake pipe, 40: control valve,
41: gas supply pipe, 42: refrigerant supply device, 43:
Solenoid valve, 44: Refrigerant supply pipe, 45: Temperature sensor, 46: Controller, 4
7: Exhaust pipe, 48, 48A, 48B, 48C: Barrel type shot blasting machine, 49: Projectile material,
50: input cylinder, 51: nozzle.

Claims (3)

[Scope of utility model registration request] 1. A barrel type shot blasting machine equipped with a processing chamber provided with a basket and a projector for projecting projection material into the basket of the processing chamber, wherein the basket is processed with its upper end opened. A semicircular ring with a basket body formed using punching metal or wire mesh with a smaller through hole and a projecting material input port formed in the center that is detachably attached to the upper end opening of the basket body. A barrel-type shot blasting machine characterized by being composed of a cap. 2. A barrel type shot blasting machine comprising a processing chamber provided with a basket and a projector for projecting projection material into the basket of the processing chamber, wherein the basket is processed with its upper end opened. It consists of a basket body with a smaller through-hole formed in part, and a semi-circular ring-shaped cap with a projection material input port formed in the center that is detachably attached to the upper end opening of this basket body. Barrel type shot blasting machine characterized by doing. 3. A barrel type shot blasting machine comprising a processing chamber having a basket and a projector for projecting a projection material into the basket of the processing chamber, wherein the basket is processed with its upper end opened. A basket body having at least a part of a smaller through hole formed therein, a cap detachably attached to an upper end opening of the basket body, and a basket body formed in a substantially central portion of the cap. A barrel type shot blasting machine, which is characterized in that it is configured with a charging cylinder that forms a shot material charging hole having a successively smaller diameter.