JP4890224B2 - Mass punching apparatus and mass punching method using the same - Google Patents

Description

  The present invention relates to an apparatus capable of efficiently extracting a lump produced in a reaction vessel by a metal halide reduction reaction from the reaction vessel and a lump extrusion method using the same.

  In recent years, titanium metal has been developed for use in various fields including aircraft, automobiles and motorcycles. Such metal titanium is industrially produced by a so-called crawl method in which titanium tetrachloride is reduced with magnesium in a reaction vessel.

  The reaction vessel used for the titanium tetrachloride reduction reaction is often made of stainless steel. This reaction vessel is a cylindrical bottomed vessel having an opening on one side, and a reaction is performed with magnesium of titanium tetrachloride while providing a lid on the opening and blocking the atmosphere.

  Magnesium chloride by-produced with the metal titanium in the reduction reaction or excess metal magnesium is largely separated from the container as a liquid, and then the chloride remaining in the metal titanium by exposing the metal titanium to a high-temperature vacuum atmosphere. Magnesium and metallic magnesium are almost completely separated and removed.

  The titanium metal produced in the reduction reaction step is produced in the entire reaction vessel and is firmly fixed to the reaction vessel wall. For example, it is taken out of the reaction vessel using a punching device as shown in FIG. (For example, refer to Patent Document 1).

  That is, in FIG. 3, the punching rod 43 is inserted into the opening from the opening provided at the bottom of the reaction vessel 3 where the titanium sponge lump 31 is formed and is in contact with the bottom of the sponge titanium lump. After contacting the bottom portion, the sponge titanium mass 31 can be extracted from the reaction vessel by driving the punching bar 4 upward (leftward in FIG. 3) with a hydraulic press or the like.

  However, the hydraulic cylinder needs to have a stroke that pushes the entire sponge titanium mass formed in the reaction vessel. In other words, this requires the arrangement of a hydraulic cylinder that is approximately the same length as the reaction vessel. However, when aiming to increase the size of the reaction vessel for the purpose of improving productivity, it is not always possible to use a commercially available hydraulic cylinder. If an attempt is made to configure the hydraulic cylinder as a custom-made product, there is a problem that it takes time for delivery due to the design required for each reaction vessel, and the cost is increased.

  Furthermore, when the stroke of the hydraulic cylinder becomes longer, high drive accuracy and drive capability are required for the cylinder, and additional facilities are required to meet these requirements, and improvements are required.

  Thus, there is a need for a punching device and a punching method that can efficiently extract large lumps produced in a reaction vessel with inexpensive equipment.

JP-A-6-145825

  In order to solve the above-mentioned problems, the present invention provides an apparatus and method for extracting a lump produced in a reaction vessel, and is capable of pushing a lump that can be used with a commercially available hydraulic device that is inexpensive and has a short construction period. The object is to provide a punching device and method.

  As a result of intensive studies in view of such circumstances, a punching device for taking out the bulk material generated in the reaction vessel from the reaction vessel, the hydraulic cylinder constituting the punching device, and a diameter-enlarged portion on the surface And a punch with a groove and a gripping claw that transmits the driving force of the hydraulic cylinder to the punch, the mass produced in the reaction vessel can be efficiently extracted from the reaction vessel. The present invention has been completed.

  That is, the lump extrusion device according to the present invention is a device for extruding a lump produced in a bottomed cylindrical reaction vessel from the reaction vessel, a reaction vessel holding the lump, and a lump A punching rod that presses the object, a hydraulic cylinder that drives the punching rod, a support that holds the reaction vessel and the hydraulic cylinder, and a hydraulic cylinder that is connected to the punching rod and fits the punching rod to drive the hydraulic cylinder. The punch bar is composed of a diameter-enlarged portion having a relatively large cross-sectional diameter and a groove portion having a relatively small cross-sectional diameter, and the enlarged-diameter portions and the groove portions are alternately arranged. After the gripping claw is fitted into the groove of the punch bar, the driving force of the hydraulic cylinder is transmitted to the punch bar via the gripping claw, and the driving force is applied to the bottom of the block held in the reaction vessel. That was configured to be applied It is an butterfly.

  Moreover, the lump extracting apparatus according to the present invention has a preferable aspect in which the moving stroke of the hydraulic cylinder for moving the punch bar is shorter than the total length of the reaction vessel for extracting the lump.

  Furthermore, while the gripping claw is separated from the punch bar, it is preferable that a stopper is disposed so as to fit into the groove portion of the punch bar.

The method for punching a lump according to the present invention is as follows.
1) An opening for inserting a punch bar is provided at the bottom of the bottomed cylindrical reaction vessel holding the lump,
2) Mount the reaction vessel on the support base,
3) The tip of the punch bar is brought into contact with the punch punch interposed in the bottom of the lump,
4) Fit the gripping claws into the groove of the punch bar,
5) Operate the hydraulic cylinder connected to the gripping claw to move the punch bar by the total length of the pair of enlarged diameter part and groove part,
6) After fitting the stopper into the other groove and fixing the punch bar, pull out the gripping claw from the groove,
7) Move the gripping claw from the groove to the next groove and fit it,
8) Pull out the stopper from the other groove,
9) Repeat 5) to 8).

  By using the lump punching device and method constructed according to the present invention, it is possible to use a hydraulic cylinder that is available as a standard product on the market. The effect is that it can be significantly reduced.

The best embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 shows a preferred apparatus configuration relating to a punching apparatus according to the present invention. In this embodiment, the punching device 1 has a support base 2, and the reaction vessel 3 and the cylinder part 5 are fixed to the support base 2. Reference numeral 4 denotes a punching bar, which can push the lump 31 held in the reaction vessel 3 upward (to the left in FIG. 1). As will be described later, the cylinder portion 5 transmits a driving force to the punching bar 4 so that the punching bar 4 can be pushed into the reaction vessel 3.

  Further, the punching bar 4 is composed of alternately the enlarged diameter portion 41 having a relatively large diameter and the groove portion 42 having a relatively small diameter. FIG. 2 is an enlarged view of an engagement portion between the cylinder portion 5 and the punch bar 4 in FIG. As shown in FIG. 2, a gripping claw 55 and a stopper 57 for fixing the cylinder portion 5 and the punching rod 4 are disposed in the groove portion 42 of the punching rod 4.

  In FIG. 2, reference numeral 52 denotes a base that is fixed to the support base 2. A hydraulic cylinder 51 is connected to the base 52, and a drive table 53 is connected via the hydraulic cylinder 51. The drive table 53 is configured to be movable in parallel (left and right in the drawing) to the push-out direction of the push-out bar 4 by receiving the drive force of the hydraulic cylinder 51 disposed between the drive table 53 and the base 52. .

  The drive table 53 is provided with a gripping claw driving cylinder 54 that makes it possible to move a gripping claw 55 for transmitting a driving force to the punch bar 4 in the vertical direction. Further, the base 52 is provided with a stopper driving cylinder 56 for making it possible to move a stopper 57 for fixing the punch bar 4 in the vertical direction. The punching bar 4 for punching out the mass 31 held in the reaction vessel 3 is disposed through the center of the drive table 53 and the base 52 and is configured to be movable in the horizontal direction. Has been. Further, the gripping claws 55 and the stoppers 57 can be independently fitted into the groove portions 42 of the punching bar 4 by the expansion and contraction operations of the gripping claw driving cylinders 54 and the stopper driving cylinders 56. As a result, it is possible to constrain the movement of the punch bar 4 that may occur when stress is applied to the lump 31.

  The operation of the metal punching apparatus according to the present invention will be described below. In FIG. 2, after the gripping claw driving cylinder 54 is expanded and the gripping claw 55 is fitted into the groove 42 formed on the surface of the punching bar, the hydraulic cylinder 51 is downstream of the arrow in FIG. When expanded in the direction (left direction), the driving force of the hydraulic cylinder 51 is transmitted to the punching bar 4 through the gripping claws 55 and applied to the bottom of the block 31 held in the reaction vessel 3. Is done. As a result, the gripping claws 55 can move the punching bar 4 in the downstream direction by a total distance between the pair of the enlarged diameter portion 41 and the groove portion 42 (hereinafter sometimes referred to as “one stroke”). As a result, the lump 31 held in the reaction container can be pushed out of the reaction container by the above distance.

  Next, the stopper driving cylinder 56 is expanded to fit the stopper 57 into the groove portion 42 to fix the movement of the push-out bar 4, and then the gripping claw driving cylinder 54 is contracted to move the gripping claw 55 into the groove portion. Pull out from 42. Since the drive table 53 becomes movable again as the gripping claws 55 are pulled out, the hydraulic cylinder 51 is contracted to move the drive table 53 in the upstream direction with respect to the arrow in FIG. Move one stroke in the opposite direction). Subsequently, the gripping claw driving cylinder 54 is expanded to fit the gripping claw 55 into the groove 42. The groove to be fitted at this time is in the upstream direction from the groove 42 described above.

  When the gripping claw 55 is fitted in the groove 42 and the movement of the push-out bar 4 is fixed, the stopper driving cylinder 56 is contracted to pull out the stopper from the groove 42, and the hydraulic cylinder 51 is expanded again. The driving force of the hydraulic cylinder 51 is transmitted to the punching bar 4 through the gripping claws 55, and the lump 31 can be pushed out by one stroke that the hydraulic cylinder 51 operates. By repeating the above operation, the entire mass 31 held in the reaction vessel 3 can be pushed out semi-continuously.

  The lump 31 extracted outside the reaction vessel 3 can be converted into a granular metal through a crushing or pulverizing step as appropriate. In particular, when the lump 31 is a sponge titanium lump, the present invention can be suitably applied.

  According to the lump punching device according to the present invention, even if it is a commercially available hydraulic cylinder having a short stroke, the lump can be stepped out by repeating expansion and contraction for each stroke as described above. . Thereby, there is an effect that it is not necessary to separately design a hydraulic cylinder having a stroke longer than the full length of the reaction vessel. A hydraulic cylinder with a long stroke requires high drive accuracy, drive capability, and incidental equipment, but there is no need to consider them.

  The moving stroke of the hydraulic cylinder 51 of the present invention is preferably configured to be shorter than the total length of the reaction vessel 3, and may be configured to be in the range of 1/2 to 1/20 of the total length of the reaction vessel. More preferred. By selecting a stroke in such a range, a commercially available hydraulic cylinder can be suitably applied to the apparatus of the present invention.

  The shorter the stroke, the simpler the device configuration is, and it is preferable. However, when the stroke is too short, the number of times of reciprocation of the cylinder for pushing out the whole block increases, and the time for pushing out the block increases. Absent. On the other hand, when the stroke is too long, it is necessary to design a high-accuracy hydraulic cylinder specialized for the punching device, which makes it difficult to cope with a commercially available product, which is not preferable. Therefore, in this invention, it is preferable to prescribe | regulate a hydraulic cylinder in the said range.

  It is preferable that the enlarged diameter portion 41 and the groove portion 42 formed on the surface of the punch bar 4 of the present invention are configured and arranged so as to have a constant pitch. The total length of the enlarged diameter portion 41 and the groove portion 42 is preferably configured to be equal to or slightly shorter than the entire stroke of the hydraulic cylinder 51. By taking the apparatus configuration as described above, it is possible to efficiently transmit the driving force for pushing out the lump 31 held in the reaction vessel 3 using a commercially available hydraulic cylinder.

  The gripping claw 55 of the present invention is preferably configured so that it can be smoothly fitted into the groove 42 formed on the surface of the punch bar 4 by the hydraulic cylinder 51. When the thickness of the gripping claw 55 and the width of the groove portion 42 are equal, the gripping claw 55 must be fitted with high accuracy. Therefore, the width of the groove portion 42 is slightly larger than the thickness of the gripping claw 55. It is preferable to keep it.

  In the present invention, when the gripping claw 55 is pulled out from the punch bar 4, the contact pressure between the gripping claw 55 and the groove portion 42 is large, and the gripping claw 55 may not be smoothly pulled out from the groove portion 42 in some cases. In such a case, after the stopper 57 completes the fitting to the punch bar 4, the base 52 on which the stopper 57 is disposed is slightly driven rightward so that a driving force is constantly applied to the punch bar 4. It is preferable to configure as described above.

  As a result, the contact surface between the gripping claw 55 fitted in the groove 42 of the punch bar 4 and the groove 42 is opened, and a slight space can be formed. As a result, there is an effect that the gripping claw 55 can be smoothly pulled out from the groove portion 42.

  Further, in the punching method according to the present invention, which is characterized by intermittently extracting the sponge titanium in one step as in the prior art, the frictional heat generated at the contact surface between the reaction vessel and the sponge titanium is reduced. The gripping claw 55 can be opened while moving to the adjacent groove portion 42, and overheating of the sponge titanium surface can be effectively suppressed. As a result, the amount of oxidation on the surface of the titanium sponge lump can be suppressed and the yield of the titanium sponge can be increased as compared with the conventional method.

The mass punching method according to the present invention described above can be arranged as follows.
That is, the lump punching method according to the present invention uses the above punching device,
1) a step of providing an opening for inserting a punch bar at the bottom of the reaction vessel;
2) A process of attaching a reaction vessel containing a lump to a punching device,
3) A step of bringing the tip end of the punch bar into contact with the punch punch interposed in the bottom of the lump,
4) A step of fitting a gripping claw into the groove of the punch bar,
5) actuating the hydraulic cylinder engaged with the gripping claws to move the punch bar by the length of the pair of enlarged diameter portion and groove portion;
6) A step of pulling the gripping claw out of the groove after fitting the stopper into the other groove,
7) A step of moving the gripping claw to the adjacent groove and fitting it.
8) A step of pulling out the stopper from the other groove,
9) It is comprised from the process of repeating said 5) -8).

  FIG. 3 shows a preferred embodiment of the present invention in which a punching punch 43 is disposed in advance at the bottom of the reaction vessel 3. The punching punch 43 is preferably arranged at the bottom of the reaction vessel 3 prior to the metal formation reaction. By arranging the punching punch 43 at the bottom of the block 31, the stress received from the punching bar 4 can be dispersed over the entire bottom of the block, and as a result, the block 31 can be smoothly removed from the reaction vessel 3. The effect is that it can be extracted.

  In particular, when the lump 31 is a collapsible metal such as a sponge titanium lump, the lump can be efficiently extracted by using the punching punch 43 in combination.

  Although the lump punching device according to the present invention is arranged in the horizontal direction in the drawing, it can be used in the vertical direction for convenience of installation space.

  As mentioned above, there exists an effect that a commercially available hydraulic cylinder can be used by using the above-mentioned lump extraction apparatus structure concerning this invention. As a result, the construction period of the hydraulic cylinder is shortened to about 1/3, and the cost can be reduced to about 1/3, compared with the case where a custom-made hydraulic cylinder is used. Furthermore, the oxidation loss on the surface of the titanium sponge lump can be reduced by about 10% compared to the case where it is extracted from the reaction vessel in one step.

  ADVANTAGE OF THE INVENTION According to this invention, the cost of a manufacturing apparatus can be suppressed in manufacture of sponge titanium, and the yield of the sponge titanium obtained can be improved.

It is a schematic cross section of the lump punching device of the present invention. It is the schematic cross section which expanded the cylinder part in FIG. It is a schematic cross section explaining punching out of a lump.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Punching device 2 Support stand 3 Reaction vessel 31 Titanium sponge lump 4 Punching rod 41 Expanded part 42 Groove part 43 Punching punch 5 Cylinder part 51 Hydraulic cylinder 52 Base 53 Drive table 54 Grip driving cylinder 55 Grip claw 56 Stopper Driving cylinder 57 Stopper

Claims (6)

An apparatus for extruding a lump produced in a bottomed cylindrical reaction vessel from the reaction vessel,
The punching device includes a reaction container that holds the lump, a punching bar that presses the lump, a hydraulic cylinder that drives the punching bar, and a support base that holds the reaction container and the hydraulic cylinder. And a gripping claw connected to the hydraulic cylinder and fitted to the punch bar to transmit the driving force of the hydraulic cylinder,
The punch bar is composed of an enlarged portion having a relatively large cross-sectional diameter and a groove portion having a relatively small cross-sectional diameter, and the enlarged diameter portion and the groove portion are alternately arranged.
After the gripping claw is fitted into the groove of the punch bar, the driving force of the hydraulic cylinder is transmitted to the punch bar through the gripping claw, and the bottom of the block held in the reaction vessel A lump punching device characterized in that a driving force is applied to the lump.   2. The lump punching device according to claim 1, wherein a moving stroke of the hydraulic cylinder is shorter than a total length of the reaction vessel.   3. The punching of a lump according to claim 1, wherein a stopper is disposed so as to fit into a groove portion of the punching bar while a gripping claw is separated from the punching bar. apparatus.   The lump punching device according to any one of claims 1 to 3, wherein a punching punch that disperses a pressing force to the lump is disposed at a tip portion of the punching bar. A method for punching a lump using the lump punching device according to any one of claims 1 to 4,
1) An opening for inserting a punch bar is provided at the bottom of the bottomed cylindrical reaction vessel holding the lump.
2) The reaction vessel is mounted on the support,
3) The tip of the punching bar is brought into contact with the punching punch interposed in the bottom of the lump,
4) Fit the gripping claws into the groove of the punch bar,
5) Operate the hydraulic cylinder connected to the gripping claw to move the punch bar by a total length of a set of the enlarged diameter portion and the groove portion,
6) After the stopper is fitted to another groove and the punch bar is fixed, the gripping claw is pulled out from the groove,
7) The gripping claw is moved from the groove to the adjacent groove and fitted,
8) Pull out the stopper from the other groove,
9) A method for punching a lump, characterized by repeating the above 5) to 8).   6. The lump punching method according to claim 5, wherein the lump is a sponge titanium lump.

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