JPH06298326A - Extensible and bendable combined spiral chip conveyor of chip slinger for machine parts working machine of screw thread and the like - Google Patents

Abstract

PURPOSE:To prevent any shutdown due to a bite of foreign matter in a spiral conveyor with a spring joint and secure the oil throwing. CONSTITUTION:A spiral conveying part 20 is fitted in a bottom part 11 of a troughlike conveying groove 10 with its own weight free of rotation in a state that its tip 22 is separated from a tip wall 12 of this groove 10. A funnel 13 of a chip 30 is installed in a tip upper part of the troughlike conveying groove 10, and a discharge port 14 is installed in the upper end bottom part. In addition, an electric motor 40 gives the rotation moment to the spiral conveying part 20. This funnel 13 is one that receives chips 30 from a machine part working machine of screw thread or the like and makes a cutting edge coolant flow out there, and in this case, a partition plate 13A partitions the funnel 13 into a chip receiving par 13B and a cutting edge coolant outflow part 13C respectively. Moreover, a spring joint 50 connects an output side of the motor 40 and the spiral conveying part 20 together free of expansion and flection.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates generally to a conveyor for chips that are produced during the manufacture of machine parts, and more particularly to a spiral conveyor system for connecting the drive section and the spiral conveyor section to allow expansion and contraction. TECHNICAL FIELD The present invention relates to an expandable and contractible flexible spiral chip conveyor for chip oil cutting for machine parts processing machines such as screws. Especially, the tip of a machine for processing machine parts such as screws puts the tip into a specified container while surely removing oily chips discharged from the machine body of machine parts such as screws. The present invention relates to a universally coupled spiral chip conveyor.

[0002]

2. Description of the Related Art Conventionally, there has been a belt conveyor type chip conveyor. Further, there is a spiral conveyor type, but the output side of the driving means such as the electric motor and the spiral conveying means for conveyance are connected by a universal joint. And, this spiral conveyor type also has no particular oil dripping structure. In addition, there is no one in which the transport unit is of a spiral type so that the driving unit and the spiral transport unit can be freely extended and curved. Therefore, the patent applicants who are the same as the patent applicants of the present application are June 20, 1991 and January 1, 1991.
On February 2, we applied for a patent for a spiral chip conveyor that can flexibly expand and contract (Japanese Patent Application Nos. 3-174692 and 3-341810).

[0003]

In the belt conveyor type, since the chips are covered with oil, it is difficult for the chips dropped from the component manufacturing machine to adhere to the conveyor belt and drop at a predetermined position. There was a flaw. And
In the case where the above-mentioned transport unit is of a spiral type and the drive unit and the spiral transport unit are freely extendable and contractible, the operation is smooth, but

Further, the spiral conveyor type has a structure in which the bottom portion on the chip receiving port side is inclined so as to be lower than the bottom portion on the discharging port side, so that oil can be removed.
On top of that, there is the advantage that the chips do not stick to the conveyor. However, when a chip, especially a foreign object, which is carried between the trough-shaped carrying groove and the spiral carrying means is caught, the universal joint cannot sufficiently absorb the impact. For this purpose, a safety pin is provided in that case so that the electric motor of the drive source is not burnt by heating.
Therefore, in this case, the safety pin jumps and the operation is stopped. Therefore, they had to go to the inspection each time, which was a great obstacle to full automation. Moreover, universal joints have limitations in terms of cost reduction. Although the above-mentioned invention has been made, there is a drawback that oil is accumulated in the tip insertion port during long-time operation and the oil overflows from the groove together with the tip.

[0005]

SUMMARY OF THE INVENTION In view of the above-mentioned problems, an expandable and contractible curving spiral chip conveyor for chip oil cutting for machine parts processing machines such as screws according to the present invention has a spiral type conveyor. This prevents the chips from adhering, and at the same time, the joint connecting the output side of the driving means and the spiral conveying means for conveyance is a telescopic type such as a spring, which is expandable and curlable. did. Furthermore, the gutter-shaped conveying groove has an inclined upper end, and a partition plate and a funnel with a cooling oil outlet are provided at the inlet of the trough to allow only the cooling oil to flow out therefrom.

The invention of claim 2 is the same as claim 1.
The oil source is further improved by making the drive source of the invention of claim 1 possible to operate intermittently.

The concrete construction of the expandable and retractable curved spiral chip conveyor for chip oil cutting for machine parts processing machines such as screws according to the present invention will be described in detail below. First, the configuration of the invention of claim 1 of the expandable and contractible curving joint spiral chip conveyor for chip oil cutting for machine parts processing machines such as screws according to the present invention will be described. First, there is a gutter-shaped conveying groove. Next is the spiral transport section. The spiral transport unit is rotatably fitted to the inner bottom of the trough-shaped transport groove by its own weight, and the tip of the spiral transport unit is separated from the lower end side wall of the trough-shaped transport groove. It is provided. And there is a drive source. This drive source gives a rotational force to the spiral conveyor. In addition, there is a flexible joint that can be expanded and contracted. This expandable / contractible joint joints the output side of the drive source and the spiral transport section so as to be expandable / contractible. A funnel for inserting chips is provided above the lower end of the gutter-shaped transport groove. In addition, there is an outlet. This discharge port is provided at the bottom of the upper end of the gutter-shaped transport groove.

Further, the above funnel receives chips (machining chips) from a machine part machine such as a screw and causes the machining blade cooling oil to flow out. And there is a partition board.
This partition plate divides the above funnel into a chip receiving portion and a processing blade cooling oil outflow portion. In addition, there is a cooling oil outlet. This cooling oil outlet is provided in the upper part of the processing blade cooling oil outflow portion. Then, the above-mentioned gutter-shaped conveying groove is connected to the lower part of the following funnel and extends obliquely upward from there.

Next, a description will be given of the construction of the invention of claim 2 of the expandable and retractable curved spiral chip conveyor of the oil chipping machine for machine parts processing machines such as screws according to the present invention. Since this is the same as the configuration of the invention of claim 1 except for the following points, the entire text of the description of the configuration of the invention of claim 1 is incorporated herein, and the description of the following configuration is added thereto. Then, the control unit makes the drive source intermittently operable.

[0010]

With the above-described construction, the expandable and retractable bendable spiral chip conveyor for chip oil cutting for machine parts processing machines according to the present invention has the following effects. First, the operation of the invention of claim 1 of the present invention will be described. First, the spiral transfer unit is rotatably fitted to the inner bottom of the gutter-shaped transfer groove by its own weight, and the tip of the spiral transfer unit is separated from the lower end side wall of the gutter-shaped transfer groove. When the part bites a foreign substance, it slides toward the tip or moves upward. And
A drive source such as an electric motor gives a rotational force to the above spiral transfer unit. Furthermore, the expansion and contraction universal joint is
The output side of the drive source and the spiral transfer section are connected so as to be able to expand and contract and bend. A funnel for inserting a chip is provided above the lower end of the trough-shaped conveying groove, and the chip discharged from the component manufacturing machine enters from this funnel. Further, the chips are discharged into the chip container from the discharge port provided at the upper end bottom portion of the trough-shaped transport groove.

On the other hand, the funnel receives chips (machining chips) from a machine part machine such as a screw and causes the machining blade cooling oil to flow out. A partition plate divides the funnel into a tip receiving portion and a machining blade cooling oil outflow portion to prevent the tip from floating when the tip falls, and a cooling oil outlet is provided above the machining blade cooling oil outflow portion. Spill only oil. Thus, since the above-mentioned gutter-shaped conveying groove is connected to the lower portion of the funnel described below and extends obliquely upward from the lower portion, the oil is drained here.

Next, the operation of the invention of claim 2 of the expandable and retractable curved spiral chip conveyor for chip oil cutting for machine parts processing machines such as screws according to the present invention will be described. Since this is the same as the operation of the invention of claim 1 except for the following points, the entire description of the operation of the invention of claim 1 is incorporated herein, and the following description of the operation is added thereto. Then, since the control unit enables the drive source to be intermittently operated, the oil drip is further promoted by the down time.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A description will be given below in detail with reference to the accompanying drawings of an embodiment of an expandable and contractible curving spiral chip conveyor for chip oil cutting for a machine component processing machine such as a screw according to the present invention. FIG. 1 is a partial cross-sectional side view of an embodiment of an expandable telescopic bendable spiral chip conveyor for chip oil cutting for machine parts processing machines such as screws according to the present invention. 2 is a plan view of which funnels are omitted, and FIG. 3 is a front view of that of FIG.
FIG. 4 is a bottom view of that of FIG. 1 with the funnel omitted. FIG. 5 shows an enlarged cross-sectional view of the right side surface of FIG. FIG. 6 is an enlarged front view of the spring joint portion of FIG. FIG. 10 is a perspective view of that of FIG.

First, there is a gutter-shaped conveying groove 10. Next is the spiral transport unit 20. This spiral transport unit 20
5, which is rotatably fitted to the bottom portion 11 in the trough-shaped transport groove 10 as shown in FIG. 5, and the tip 22 of the shaft 21 of the spiral transport unit 20 is connected to the trough-shaped transport groove. It is provided in a state of being separated from the lower end side wall 12 of the groove 10. A funnel 13 into which a chip 30 is put is provided above the lower end of the gutter-shaped transfer groove 10.

Then, there is an electric motor 40 which is a drive source. The electric motor 40 gives a rotational force to the spiral transfer section 20. Further, there is a spring joint 50 (see FIGS. 1, 6, 7 and 8). The joint 50 made of a spring connects the output side of the electric motor 40 and the spiral transfer section 20 so as to extend and contract and bend freely. Furthermore, the above-mentioned gutter-shaped transport groove 10
A discharge port 14 is provided at the bottom near the higher end of the oil discharger, and the oil-depleted chips 30 are discharged from the discharge port 14 into a chip container (not shown).

The trough-shaped conveying groove 10 is formed such that the side connected to the funnel 13 is low and the discharge port 14 side is inclined high. As a result, the chip 30 is protected from oil. Therefore, in the embodiment of the invention of claim 2, since the electric motor 40 can be operated intermittently by the control portion, the oil leakage is further promoted.

On the other hand, as in the perspective view shown in FIG. 10, the funnel 13 receives the oil-covered tip 30 from a machine part machine such as a screw and causes the machining blade cooling oil 31 to flow out. This is because the partition plate 13a connects the funnel 13 to the tip receiving portion 13b and the processing blade cooling oil outflow portion.
Divide into 13c. The cooling oil outlet 13d is provided above the machining blade cooling oil outflow portion 13c. This prevents the chip 30 from turbulently flowing in the oil, floating in the oil 31, mixing with the oil 31, and flowing off together with the oil 31. If the partition plate 13a is not provided, when the chips 30 are dropped on the funnel 13, the reaction of the chips 30 causes turbulence in the oil,
It floats on the oil 31, mixes with the oil 31, and is washed away together with the oil 31.

The operation will be described above. First,
The spiral transport unit 20, which is rotatably fitted to the lower portion 11 of the trough-shaped transport groove 10 by its own weight, is the electric motor 4 described above.
Rotated by 0. There, oily chips 30
Are thrown in through the funnel 13. Then, the chip 30 sunk by its own weight in the chip receiving portion 13b is carried into the inner part of the gutter-shaped transfer groove 10 while being sunk by its own weight in the machining blade cooling oil outflow portion 13c. Then, the oil 31 flows out from the cooling oil outlet 13d provided on the upper part thereof.
Therefore, only the tip 30 of the gutter-shaped carrier groove 1
It is delivered to the back of 0. Next, as shown in the enlarged partial front sectional view of the portion of the gutter-shaped conveying groove 10 and the spiral conveying portion 20 shown in FIG. 7, when the foreign matter 60 enters and the spiral conveying portion 20 bites into it, FIG. As shown,
The spring joint bends 50 upwards to ease the bite. Furthermore, the joint 50 made of spring is stretched by being pulled by the rotational force of the spiral transport unit 20. Then, the foreign matter 60 is easily removed as shown in FIG. In this way, the operation continues without stopping.

[0019]

EFFECTS OF THE INVENTION The expandable and retractable curved spiral chip conveyor of chip oil cutting machine for machine parts such as screws according to the present invention has the following great effects because of the above-mentioned effects. That is, by using a spiral conveyor, it was possible to prevent oily chips from adhering to the conveyor unlike a belt conveyor. And
By making the joint a spring, which is very simple, the cost can be reduced, and even when foreign matter bites into the spiral conveyor using its expansion and contraction, it can easily bite it automatically. It was prevented from being disconnected and the operation stopped. This has made it possible to fully automate the parts manufacturing machine.

On the other hand, since the gutter-shaped conveying groove is inclined toward the tip, the chips are sent toward the discharge port, but at this time, the inclination removes oil. Then, by intermittently performing this operation by the control unit, the effect of oil draining is further enhanced.

In particular, the partition plate and the funnel with the cooling oil outlet well received the chips and allowed to sink in the funnel to prevent mixing with the oil, and to exert a great effect on allowing only the oil to flow out therefrom. .

[Brief description of drawings]

FIG. 1 is a partial front cross-sectional view of an embodiment of an expandable and contractible curving joint spiral chip conveyor for chip oil cutting for a machine component processing machine such as a screw according to the present invention.

2 is a plan view of FIG. 1 with a funnel omitted.

FIG. 3 shows a front view of that of FIG.

FIG. 4 is a bottom view of the one shown in FIG. 1 with the funnel omitted.

5 shows a right side enlarged cross-sectional view of the one in FIG. 1. FIG.

FIG. 6 is an enlarged front view of a portion of the spring joint shown in FIG. 1;

FIG. 7 is an enlarged partial front cross-sectional view of a portion of the gutter-shaped conveying groove and the spiral conveying portion, showing a state in which a foreign matter has entered.

FIG. 8 is an enlarged partial front cross-sectional view of a portion of the gutter-shaped conveying groove and the spiral conveying portion, showing a state in which foreign matter has bitten.

FIG. 9 is an enlarged partial front cross-sectional view of a portion of the gutter-shaped conveying groove and the spiral conveying portion, showing a state in which the threaded joint is extended and foreign matter is detached.

FIG. 10 is a perspective view of that of FIG.

[Explanation of symbols]

 10 Trough-shaped transport groove 11 Lower part 12 Tip wall 13 Funnel 13a Partition plate 13b Chip receiving part 13c Processing blade Cooling oil outflow part 13d Cooling oil outflow port 14 Discharge port 20 Spiral transfer part 21 Shaft 30 Chip 40 Electric motor 50 Spring joint 60 Foreign body 70 Control unit

Claims (2)

[Claims] 1. A funnel which receives chips (machining chips) from a machine part machine such as a screw and causes cooling oil for a machining blade to flow out,
A partition plate that divides the funnel into a tip receiving portion and a processing blade cooling oil outflow portion, a cooling oil outlet provided on the upper side of the processing blade cooling oil outflow portion, and a lower portion of the above funnel, and obliquely upward from there. An extending gutter-shaped conveying groove, which is rotatably fitted to the inner bottom portion of the gutter-shaped conveying groove by its own weight, and is provided with the lower end of the spiral conveying part separated from the lower end side wall of the gutter-shaped conveying groove. Spiral transfer section, drive source such as motor for giving rotational force to the spiral transfer section, telescopic bendable joint for connecting the output side of the drive source and the spiral transfer section to extend and contract, and the gutter shape A spiral chip conveyor that expands and contracts freely and bends freely for machine parts processing machines such as screws, characterized in that it comprises a discharge port provided at the bottom near the upper end of the conveying groove. 2. A funnel which receives chips (machining chips) from a machine part machine such as a screw and causes cooling oil for a machining blade to flow out,
A partition plate that divides the funnel into a tip receiving portion and a processing blade cooling oil outflow portion, a cooling oil outlet provided on the upper side of the processing blade cooling oil outflow portion, and a lower portion of the above funnel, and obliquely upward from there. An extending gutter-shaped conveying groove, which is rotatably fitted to the inner bottom of the gutter-shaped conveying groove by its own weight, and is provided with the tip of the spiral conveying part separated from the lower end side wall of the gutter-shaped conveying groove. Spiral transfer section, drive source for applying rotational force to the spiral transfer section, telescopic bending joint that connects the output side of the drive source and the spiral transfer section in a flexible manner, and the upper end of the gutter-shaped transfer groove An expansion / contraction bendable coupling of a tip oiling machine for a machine part machine such as a screw characterized by comprising a discharge port provided at a bottom part in the vicinity and a control unit capable of intermittently operating the above drive source. Spiral Pukonbea.