JPH08300076A - Metal sleeve processing device and metal sleeve - Google Patents

Abstract

PURPOSE: To provide metallic sleeve working equipment capable of the cutting and the arch forming in one process, and being operated at high speed by cutting a metallic tape, and winding the tape around a mandrel having the prescribed shape to form a metallic sleeve. CONSTITUTION: A metallic tape 30 is fed to a tape clamping mechanism part 11 through a constant length of tape feeding by fixed dimension mechanism part 10, and fixed between first and second tape clamp parts 19, 20. When a receiving and forming die 24 is elevated and supports a mandrel 15, the metallic tape 30 is cut by an arch forming die 21 and bent to the shape of the arch forming die. When the receiving and forming die 24 is lowered, rounding dies 22, 23 are elevated to give the whole roundness by rounding each end part of the metallic tape 30. The rounding dies 22, 23 are lowered, and the receiving and forming die 24 is again elevated to achieve the finish forming. Because the cutting of the metallic tape 30 is integrated with the operation of the arch forming die, both the cutting and the arch forming can be achieved in one process.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal sleeve processing apparatus and a metal sleeve, which are manufactured by processing a metal tape into a substantially C-shaped cross section, and more particularly, join a tungsten filament and a molybdenum support of an illumination lamp. TECHNICAL FIELD The present invention relates to a sleeve processing device for manufacturing a metal sleeve used as a component for a metal sleeve, and a metal sleeve.

[0002]

2. Description of the Related Art Heretofore, as shown in FIGS. 7 and 8, a metal sleeve 50 having a substantially C-shaped cross section has been used for an illumination lamp such as a halogen lamp. Metal sleeve 50 used for halogen lamp
Is made of molybdenum as a metal material, and is made by processing a metal tape (for example, molybdenum tape) formed in a tape shape including the fiber structure 51 in the longitudinal direction. The metal fibrous structure 51 is a shape in which long crystal-like structures are piled up in a direction in which the crystal grains forming the inside of the metal are stretched by applying plastic deformation and the deformation is applied.

In the halogen lamp 52, a tungsten filament (W filament) 53 and a molybdenum support (Mo support) 54 are joined to each other by a metal sleeve 50.

The metal sleeve 50 is manufactured by a drawing (oiling) method using a super hard die. In the method of manufacturing the metal sleeve 50 by the drawing method, first, a metal tape is drawn by a pipe drawing machine to make a pipe. After straightening the pipes with a straight liner, 100 to 200 pipes each of which has been cut to a fixed size of 1 m / 1 with a manual cutting machine are filled with a Hishi tube and put in a hot water device for binding.

Further, the pipes bound by the Hishi tube are cut into the size of the metal sleeve 50 by an automatic cutting machine to separate the Hishi tube, and then the metal sleeve 5 is cut.
Burrs produced by cutting 0 are removed by glass polishing. Finally, a defective product such as a burr defect is selected and removed to obtain a predetermined metal sleeve 50.

[0006]

However, the method of manufacturing the metal sleeve by the drawing method has many working steps and also many manual working steps using a manual cutting machine, etc., which requires a great deal of manufacturing time and labor. There is a problem with.

Further, as shown in FIG. 8, the metal sleeve 50 is cut in a direction orthogonal to the direction of the fibrous structure 51 of the metal tape, and since the cut surfaces are located at the openings at both ends, it is always necessary to perform burrs during cutting. 50a will occur. However, the burr 50a generated when cutting by the automatic cutting machine
Requires complete inspection because it is difficult to completely remove it by glass polishing. That is, the presence of the burr 50a makes it difficult to insert the Mo support 54 and the W filament 53 into the openings at both ends of the metal sleeve 50 when the both ends of the W filament 53 are coupled to the Mo support 54, for example. For this reason, all the metal sleeves 50 are required to be inspected.

Further, in the method of manufacturing the metal sleeve 50 by the drawing method, as shown in FIG. 8, the metal sleeve is manufactured in a direction parallel to the fiber structure 51 of the metal tape, that is, in the longitudinal direction of the metal tape. Is. However, in the use of the metal sleeve 50 by the user,
For example, when the W filament 53 and the Mo support 54 are joined, the metal sleeve 50 is crushed and joined,
There is a problem that the metal sleeve 50 is easily broken in the direction of the fibrous structure 51 when crushed.

Therefore, an object of the present invention is to provide a metal sleeve processing apparatus and a metal sleeve which can prevent cracks due to shape deformation due to crushing and the like and prevent burrs from being produced in the manufacturing structure and can be easily mass-produced. To provide.

[0010]

According to the present invention, a constant-size feeding mechanism portion for feeding a metal tape by a predetermined dimension, a tape clamping mechanism portion for clamping the fed-out metal tape, and the clamped portion. A metal sleeve comprising: a molding / processing mechanism portion for cutting the metal tape and winding the metal sleeve around a mandrel having a predetermined shape to form a metal sleeve; and a recovery mechanism portion for removing and recovering the metal sleeve from the mandrel. A processing device is obtained.

[0011]

In the metal sleeve processing apparatus according to the present invention, the metal tape is sent from the spool holder to the tape constant size feeding mechanism section through the sensor section. The metal tape is fed from the spool holder to the tape clamp by the tape sizing mechanism by a fixed size, and the metal tape is fixed between the first and second tape clamp members.

Next, the mandrel is advanced from the first mandrel guide to the second mandrel guide. The advancing mandrel is centered by the first and second mandrel guides. It stops when the mandrel advances and passes the second mandrel guide.

Next, the receiving mold moves up in the direction of approaching the mandrel and supports the lower part of the mandrel. When the mandrel is supported by the metal mold for receiving molding, the tape is cut by the metal mold for arch formation, and at the same time, the lower surface of the cut tape comes into contact with the upper surface of the mandrel and is bent in the shape of the metal mold for arch molding. Then, the receiving mold supporting the mandrel is lowered. When the receiving mold is lowered, the first and second rounding molds are simultaneously raised in the direction of the mandrel, and the metal tapes at both ends bent in an arch shape are rounded to reduce the overall roundness. Hold it. When the round forming process of the metal tape is completed, the first and second round forming dies are simultaneously lowered, and then the receiving forming dies are again raised to perform the final finish forming. At this time, the joints of the sleeves having a C-shaped cross section are brought into contact with each other and simultaneously rounded.

When the final finish molding is completed, the receiving mold and the arch forming mold simultaneously descend and rise, and the mandrel becomes free. In this state, the molded and processed metal sleeve is in close contact with the mandrel and cannot be easily removed.

From this state, when the mandrel is retracted and the metal sleeve is forcibly pulled out by the first mandrel guide, the metal sleeve falls and is stored in the product hopper by the product collecting device.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic diagram showing an embodiment of a metal sleeve processing apparatus of the present invention. FIG. 2 is a perspective view showing a forming / processing mechanism portion of the metal sleeve processing apparatus.

Referring to FIGS. 1 and 2, the metal sleeve processing apparatus cuts the tape constant-size feeding mechanism portion 10 for supplying the metal tape 30 by a predetermined size and the metal tape 30 fed by the constant size, It is provided with a forming / processing mechanism portion 12 formed in the shape of a metal sleeve, and a recovery mechanism portion 13 for discharging the sleeves one by one and collecting them as products.

The metal tape 30 has a tape width of 2 m, for example.
Molybdenum having a thickness of m to 4 mm and a tape thickness of 0.1 mm is used, and contains a fibrous structure in the longitudinal direction.

The metal sleeve processing apparatus will be described in more detail. The metal sleeve processing apparatus includes a body 1, a large ring-shaped ring gear 2 mounted in the central portion of the body 1, and a ring gear 2. First to fifth bending tools 3 to 7 consisting of five radially extending toward the center and connected to the ring gear 2.
And a spool holder 8 arranged outside the body 1 around which the metal tape 30 is wound, and a sensor unit for automatically rotating the spool holder 8 in accordance with the amount of the metal tape 30 supplied to always provide a certain amount of bending. 9 and a tape clamp mechanism portion 11 that clamps the metal tape 30 and holds the metal tape 30 so that it does not move during processing.

A super hard mandrel 15 is attached to the body 1 in the central axis direction of the ring gear 2. The mandrel 15 is attached to the holder part 16. The holder is driven by a cam (not shown) attached to the rear part of the main body 1 so as to be movable back and forth in the central axis direction.

The mandrel 15 has first and second mandrel guides 1 which are parallel to each other and are spaced apart from each other.
It is inserted in 7, 18 so that it can move back and forth. The first and second mandrel guides 17, 18 are attached to the body 1, and the first and second mandrel guides 17, 18 are attached.
The mandrel 15 is centered by 18.

A well-known forming machine can be used for the body 1, the first to fifth bending tools 3 to 7 and the ring gear 2. The ring gear 2 is a mechanism that can be rotated about a center by a motor (not shown).

Each of the first to fifth bending tools 3 to 7 is provided with a cam (not shown), and these cams are interlocked with the ring gear 2 and these cams are connected to the first to fifth bending tools 3 to 7. It is possible to drive each of the tape clamp mechanism portion 11 attached to the tips of the to 7 and the mold described below.

The first bending tool 3 has a tape clamp mechanism portion 11 which is a first tape clamp member 19 for clamping the metal tape 30 and a metal tape 30 which is clamped by the first tape clamp member 19. The second tape clamp member 20 is attached.

An arch-forming die 21 having an arch-shaped forming surface is attached to the second bending tool 4, and the metal tape 3 is attached by the arch-forming die 21.
Cutting of 0 and forming processing for bending into an arch shape are performed.

In the third bending tool 5, one end of the metal tape 30 is rounded in order to bend-form the arched metal tape 30 into a substantially C-shaped cross section. A first rounding molding die 22 having an arc surface to be bent at the tip is attached. The fifth bending tool 7 is formed by bending the other end of the metal tape 30 in order to bend the arched metal tape 30 into a substantially cylindrical C-shaped cross section. A second rounding molding die 23 having an arc surface at its tip is attached.

For the fourth bending tool 6, the final finish forming for shaping the shape of the metal sleeve in the next step from the step of forming by bending in a substantially C-shaped cross section, and the metal tape 30.
Bending forming into a substantially C-shaped cross section, the receiving mold 2 having an arc surface at the tip for supporting the mandrel.
4 is attached.

Arch molding die 21 and receiving molding die 24
And are located in a vertical relationship, and each of the tips is directed toward the center of the ring gear 2. Further, the first rounding molding die 22 and the second rounding molding die 23 are arranged so as to sandwich the receiving molding die 24 from both sides in the vicinity, and each of the tips is a ring gear. It is directed toward the center of 2.

First and second tape clamp members 19,
Each of the tips 20 is oriented in the vicinity of the arch forming die 22 and at a position slightly displaced from the center direction of the ring gear 2.

Further, as shown in FIG. 2, the body 1 is provided with a tape stopper 26 facing the first and second tape clamp members 19 and 20.

The first mandrel guide 17 is located between the tape stopper 26 and the holder portion 16, and
The mandrel guide 18 is located outside the receiving mold 24.

The metal tape 30 passes through the sensor section 9,
The spool holder 8 is automatically rotated in accordance with the amount of the metal tape 30 supplied by the sensor unit 9 so that the spool holder 8 always has a certain amount of bending. Sensor part 9
Is a limit switch with a long wire attached,
The metal tape 30 slips under the wire and is sent.
When the metal tape 30 is fed for a predetermined amount or more, the wire moves up and the limit switch operates, the motor connected to the spool holder 8 of the metal tape 30 rotates, the metal tape 30 bends, and the wire descends to cause the limit switch. Stops operating and the motor also stops.

The tape constant-size feeding mechanism section 10 serves to intermittently feed the metal tape 30 toward the tape clamp section 11 by a predetermined dimension.

When the metal tape 30 is fed to the tape clamp portion 11, the metal tape 30 fed out at a constant size is clamped by the first and second tape clamp members 19 and 20 of the first bending tool 3 to perform molding processing. At times the metal tape 30 does not move. Then, as shown in FIG. 3, the shape of the metal sleeve 31 shown in FIG. 4 is formed by each of the molds attached to the tips of the first to fifth bending tools 4 to 7 by the forming / processing mechanism portion 12. Is molded into. Then, the collection mechanism unit 13 discharges the products one by one.

5 (a) to 5 (h) show respective steps of forming the metal sleeve 31 from the metal tape 30 by the metal sleeve processing device. Hereinafter, with reference to FIGS. 1 to 3 and FIGS. 5A to 5H, the metal sleeve 3 will be described.
The molding / processing step 1 will be described.

The tape 30 shown in FIG. 5 (a) is fed from the spool holder 8 through the sensor portion 9 to the tape constant-size feeding mechanism portion 10. The tip end of the metal tape 30 fed from the spool holder 8 to the tape clamp mechanism unit 11 by the tape constant size feed mechanism unit 10 by a predetermined dimension is located between the first and second tape clamp members 19 and 20 of the tape clamp mechanism unit 11. And then comes into contact with the tape stopper 26. At this time, with the feeding amount of the metal tape 30 slightly increased and the tip of the metal tape 30 is pressed by the tape stopper 26, the first tape clamp member 19 descends to move the metal tape 30 to the first and second positions. It is fixed between the second tape clamp members 19 and 20.

First and second tape clamp members 19,
The reason why the metal tape 30 is clamped under pressure by 20 is that it is necessary for the metal tape 30 cut by the next shear cutting to be maintained in a parallel state and shaped into an arch. This is a point of preventing the formed metal tape 30 from being formed in an inclined or deformed state.

Next, as shown in FIG. 5B, the body 1
The mandrel 15 attached in the central axis direction of the ring gear 2 is moved forward. That is, the mandrel 15 is advanced from the first mandrel guide 17 to the second mandrel guide 18. The holder portion 16 to which the mandrel 15 is attached is driven by a cam attached to the rear portion of the body 1. The advancing mandrel 15 is centered by the first and second mandrel guides 17, 18. The mandrel 15 serves to keep the inner diameter of the metal sleeve 31 constant. By providing a hit detection sensor for the mandrel 15, it is possible to automatically stop when a hit occurs.

When the mandrel 15 moves forward, passes through the second mandrel guide 18, and stops, the first mandrel guide 17 is provided with a detection sensor (not shown) for detecting breakage of the mandrel 15, whereby the mandrel 15 is provided. It is also possible to make it possible to automatically stop when the break of 15 is detected.

Next, as shown in FIG. 5C, the receiving mold 24 shown in FIGS. 1 and 2 rises, that is, rises in the direction of approaching the mandrel 15 and supports the lower portion of the mandrel 15. The reason for supporting the lower part of the mandrel 15 is to support the mandrel 15 so as not to be broken even when a force is applied from above the mandrel 15 in the next operation. The mandrel 15 is very weak in bending force (however,
It is strong against compressive force) This breakage countermeasure becomes the biggest problem.

When the mandrel 15 is supported by the receiving mold 24, the metal tape 30 is cut by the arch forming mold 21.
At the same time, the metal tape 3 cut on the upper surface of the mandrel 15
The lower surface of 0 contacts and is bent according to the shape of the arch forming die 21.

Next, the receiving mold 24 supporting the mandrel is lowered. The reason why this lowering is necessary is to move it so as not to interfere with the molding and processing in the next step in the next step. When the receiving molding die 24 descends, FIG.
As shown in (d), the first and second rounding molding dies 2
2 and 23 simultaneously rise in the direction of the mandrel 15, and the metal tapes 30 at both ends bent in an arch shape are rounded and formed to have the entire roundness. When the round forming process of the metal tape 30 is completed, the first and second round forming molds 22 and 23 are simultaneously lowered, and thereafter, as shown in FIG. Ascend again to perform final finishing. At this time, the seams (cut surfaces) of the metal sleeve 31 having a C-shaped cross section are brought into contact with each other and simultaneously rounded.

When the final finish molding is completed, the receiving mold 24 and the arch forming mold 21 simultaneously descend and rise, and the mandrel 15 becomes free. In this state, as shown in FIG. 5F, the metal sleeve 31 that has been formed is in close contact with the mandrel 15 and cannot be easily removed.

Further, as shown in FIGS. 5 (g) and 5 (h), when the mandrel 15 is retracted and the metal sleeve 31 is applied to the first mandrel guide 17 to forcibly pull it out, the metal sleeve 31 is removed. Product collection mechanism 13 after falling
Will be collected by.

The metal sleeve 31 made in this way
As shown in FIG. 4, since the seam of the C-shaped cross section is in the direction of the fibrous structure 39, even if burrs occur, the metal tape 3
Since 0 is rounded in the direction of the fibrous structure 39, for example, it is possible to secure a state in which it is unlikely to break even during the insertion process for coupling with the W filament of the user. At the same time, both ends of the sleeve are on both sides of the tape 30, so that burrs do not occur. Further, since both sides of the metal tape 30 are arcuate, the user can easily insert the W filament into the metal sleeve 31.

FIG. 6 shows the structure of the recovery mechanism section shown in FIG. The metal sleeve 31 pulled out from the mandrel 15 has a problem that the unit weight is very small, it does not easily drop, and it is difficult to collect it in a predetermined place. As a countermeasure against this, the recovery mechanism unit 13 generates a suction force after removing the metal sleeve 31 from the mandrel 15 and a pipe (for example, a metal pipe made of copper) 33 that pulls the metal sleeve 31 into the one end opening by the suction force. In order to do so, the suction generating means provided in the middle portion of the pipe 33 and the product hopper 34 for discharging and containing the metal sleeve 31 from the other end opening of the pipe 33 are provided.

In this embodiment, the vacuum generator 35 is used as the suction generating means. The vacuum generator 35 is connected to an inflow pipe 36 for injecting compressed air from the outside. A solenoid valve 37 is attached to the inflow pipe 36. When compressed air is sent to the pipe 33 by the opening operation of the solenoid valve 37 to bring the vacuum generator 35 into a vacuum state,
As shown in FIG. 5 (h), the metal sleeve 31 is sucked into the pipe 33 and stored in the product hopper 34 from the opening at the other end of the pipe 33. The other end of the pipe 33 is
The wire mesh cover 38 made of stainless steel or the like is inserted. The wire netting cover 38 is provided above the product hopper 34.

The pipe 33 provided with the vacuum generator 35 by pneumatic pressure forcibly sucks the metal sleeve 31 by the vacuuming force to the vicinity of the dropping position of the metal sleeve 31 and discharges it into the wire mesh cover 38 above the product hopper 34. .

[0049]

As described above with reference to the embodiments, according to the metal sleeve processing apparatus of the present invention, in the forming / processing mechanism section, the cutting of the metal tape and the arch forming die are integrated. It can be cut and arched in the process, and it can be simplified because the mandrel support and the receiving molding die are used to prevent the mandrel from breaking, and metal sleeve processing that enables high-speed operation for mass production The device can be obtained.

Further, the recovery mechanism section can reliably recover the formed metal sleeves one by one as products.

By the metal sleeve processing apparatus of the present invention,
A metal sleeve having an operating cycle of 70 / min and a yield of 80% to 98% was obtained.

Further, since the mandrel is supported by the receiving molding die, the mandrel has a sufficient effect as a measure for preventing the mandrel from easily breaking.

Since the mandrel guide is provided in two places, the mandrel center can be set, so that the mandrel can be corrected even if it is slightly bent.

Further, since the mandrel hitting detection sensor can automatically stop at the time of hitting, unmanned operation for 24 hours becomes possible.

Further, since the metal tape is rolled in the direction of the fiber structure, it is possible to prevent cracks when the user processes the metal sleeve. At the same time, since both ends of the metal sleeve are on both sides in the metal tape, the cause of user's defect due to burrs can be eliminated.

Further, since both sides in the width direction of the metal tape are arcuate, the user can easily insert the W filament.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing an embodiment of a metal sleeve processing apparatus of the present invention.

FIG. 2 is a perspective view showing details of a forming / processing mechanism portion shown in FIG.

FIG. 3 is an explanatory diagram showing a state in which a metal sleeve is formed using each of the molds in FIG.

FIG. 4 is a perspective view of a metal sleeve manufactured by the metal sleeve processing apparatus shown in FIGS. 1 and 2.

5 (a) to 5 (h) are explanatory views showing each step of manufacturing and recovering a metal sleeve by the metal sleeve processing apparatus shown in FIGS. 1 and 2.

6 is a configuration diagram showing details of a recovery mechanism section in FIG. 1. FIG.

FIG. 7 is a front view showing a conventional halogen lamp.

8 is a perspective view showing a metal sleeve used in the halogen lamp of FIG. 7. FIG.

[Explanation of symbols]

 1 Body 2 Ring Gear 3 1st Bending Tool 4 2nd Bending Tool 5 3rd Bending Tool 6 4th Bending Tool 7 5th Bending Tool 8 Spool Holder 9 Sensor Section 10 Tape Sizing Mechanism 11 Tape Clamp Part 12 Forming / Processing Mechanism Part 13 Collection Mechanism Part 15 Mandrel 16 Holder Part 17 First Mandrel Guide 18 Second Mandrel Guide 19 First Tape Clamping Part 20 Second Tape Clamping Part 21 Arch Forming Mold 22 Second 1 rounding mold 23 second rounding mold 24 receiving mold 30 metal tape 31, 50 metal sleeve 52 tank stainless lamp

Claims (7)

[Claims] 1. A constant-size feeding mechanism section for feeding a metal tape by a certain size, a tape clamp mechanism section for clamping the fed-out metal tape, and a predetermined shape for cutting the clamped metal tape. A metal sleeve processing apparatus comprising: a forming / processing mechanism section for forming a metal sleeve wound around a mandrel; and a recovery mechanism section for removing and recovering the metal sleeve from the mandrel. 2. The metal sleeve processing apparatus according to claim 1, wherein the forming / processing mechanism section cuts the metal tape and presses the metal tape against the mandrel to form an arc-shaped metal. A mold, first and second rounding molds for winding both ends of the arched tape around the mandrel, and a receiving mold for supporting the mandrel and arranging the metal tape wound around the mandrel into a metal sleeve shape. A metal sleeve processing apparatus comprising a die. 3. A body, a ring-shaped ring gear attached to the center of the body and rotating, and first to fifth bending tools radially connected to the center of the ring gear. A spool holder that is disposed outside the body and around which a metal tape is wound, a sensor unit that rotates the spool holder according to the amount of the metal tape supplied, and that causes the metal tape to have a certain amount of bending, and the ring. A mandrel arranged in the central axis direction of the gear, a holder part for driving the mandrel so as to be able to move back and forth in the central axis direction, and a pair of mandrel attached to the body so as to be able to move forward and backward through the mandrel at intervals in parallel with each other Mandrel guide and front to clamp the metal tape and hold it in place during processing A tape clamp member attached to the first bending tool, an arch-forming die attached to the second bending tool for cutting and shaping the metal tape into an arch, and an arch-forming die. A rounding die attached to each of the third and fifth bending tools for forming the metal tape into a substantially C-shaped cross section, and the metal tape attached to the fourth bending tool. The mandrel is supported in the step of forming into the arch shape, and the metal mold for final forming is formed into a metal sleeve shape in the subsequent step of the step of forming into the substantially C-shaped cross section, and the metal sleeve. A metal sleeve processing apparatus, comprising: a recovery mechanism section for removing and recovering from a mandrel. 4. The metal sleeve processing apparatus according to claim 1, wherein the recovery mechanism section removes the metal sleeve from the mandrel and then pulls the metal sleeve by suction force and the suction force. And a suction generating means provided at an intermediate portion of the pipe for generating the metal sleeve. 5. The metal sleeve processing apparatus according to claim 4, further comprising a product hopper that discharges and collects the metal sleeve drawn into the pipe from the pipe. 6. The metal sleeve processing apparatus according to claim 1 or 3, wherein the metal tape includes a fiber structure in its longitudinal direction and is cut in the width direction by the forming / processing mechanism section, and the metal tape is also cut. Is a device for processing a metal sleeve, wherein the fiber structure is wound around the mandrel in a direction corresponding to the circumferential direction of the mandrel. 7. A metal sleeve manufactured by cutting a metal tape containing a fiber structure in the longitudinal direction in the width direction and then forming the metal tape into a cylindrical shape having a substantially C-shaped cross section, wherein the metal tape is the fiber structure. Are arranged in the circumferential direction, and the cut surfaces of the metal tape face each other.