JPH0210689B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is applicable to the synthesis of diamond and CBN (cubic boron nitride), the production of sintered bodies of diamond and CBN, the synthesis of other materials, and high-temperature, high-pressure Regarding the high-pressure generator used for processing, in detail, it is a uniaxial pressurizing type high-pressure generator consisting of a cylinder structure and a pair of anvil structures, and is not a small-scale device for experiments, but a large-scale device for production or a manufacturing device scale. It is designed to be applicable to experimental equipment.

[Prior Art] As an example of a uniaxial pressurizing type high pressure generator consisting of a cylinder structure and a pair of anvil structures, the one shown in Japanese Patent Publication No. 36-23463 is widely known, and the outline thereof is as follows. The structure is shown in Figure 6a. In the high pressure generator shown in FIG. 6a, the upper and lower anvil structures a and b are fixed to the upper and lower plates of the press, respectively, and the pressurized body including the gasket structure c is placed in the inner hole. The cylinder structure e loaded with the body d is placed gently on the lower anvil structure b, and the press is driven to pressurize it, and the anvil structures a and b are not fixed to the press. , a pressurized body d is loaded into a cylinder structure e, and anvil structures a and b are superimposed on the upper and lower parts of the cylinder structure e via a gasket structure c, and the pressurized space of the press machine is It may be placed in the center and pressurized by driving a press machine.

The high pressure generator described in the above-mentioned Japanese Patent Publication No. 36-23463 seems to be a relatively small experimental device, with the cylinder structure e having an inner diameter of about 10 mm and an outer diameter of about 150 mm. The cylinder structure e and the anvil structures a and b are light enough to be held in one hand, and therefore the gasket structure c made of pyrophyllite is the same as the cylinder structure e and the anvil structures a and b.
The gasket structure C will not be able to withstand the weight and collapse when it is held between the gaskets, and the imbalance of the gasket structure c will not be a problem. Therefore, the above-mentioned special public service
The publication does not mention handling-related auxiliary equipment. However, when applying the above-mentioned high pressure generator to production equipment, the cylinder structure c
The inner diameter of the cylinder is several times to ten times larger, and the weight of cylinder structure e and anvil structures a and b is several hundred kg.
It weighs up to several tons, making it difficult to handle manually and potentially causing the following problems.

(i) At the beginning of the pressurization process, there is a risk that a part of the gasket structure c may break before it can function as a gasket, and if the weight of the cylinder structure e is applied to the lower gasket structure, There is a great possibility. In particular, when using a gasket structure c formed by pressing molded waxite powder, etc., the compressive strength is lower than that of natural waxite or the like, so that it is easily broken.

(ii) If the horizontality of the cylinder structure e is not maintained at the beginning of the pressurization process and it tilts, there is a risk that the gasket structure c will receive an uneven load or a local compressive force, causing that part to collapse.

(iii) There is no guarantee that the upper and lower gasket structures c will be compressed at equal compression rates and synchronously. In particular, the lower gasket structure is compressed by the weight of the cylinder structure e even before pressurization by the press is started.

(iv) There is a risk of pressurization when the axes of the upper and lower gasket structures c and the axes of the upper and lower anvil structures a and b are misaligned (the cone angle of the tip of the anvil structure and If the cone angles of the inner hole openings of the cylinder structure are equal, the misalignment will be automatically corrected when pressurizing, but the cone angles are not necessarily the same.)

If problems such as (i) to (iv) above exist, the 6th
As shown exaggeratedly in Figure b, the gasket structure c is not compressed evenly in the upper and lower portions, or is not compressed uniformly in the circumferential direction.
The functions required for this were not achieved as intended, and as a result, (i) the cylinder structure e was encouraged to tilt, (ii) the uniformity of the pressure distribution in the pressure chamber was inhibited, and (iii) the gasket structure c was Decrease in pressure sealing ability,
(iv) Anvil structures a and b of gasket structure c;
(v) reduction in the sealing function of the gasket structure c and promotion of the blowout phenomenon due to unevenness, and various other unfavorable situations such as As a result, the quality of products subjected to high-temperature and high-pressure processing is affected, and the service life of the anvil structures a and b and the cylinder structure e is reduced.

Various countermeasures have been considered in the past for the above-mentioned drawbacks. That is, for example, there is a device that holds the cylinder structure with a spring and floats it so that the weight of the cylinder structure is not added to the gasket structure before the start of pressurization. Also, Jikko 47
The "high-pressure generator" shown in Japanese Utility Model Publication No.-28310 and the "uniaxial high-pressure generator" shown in Japanese Utility Model Publication No. 11102-1972 are also examples of countermeasures. There, a mechanical movement regulating mechanism (link mechanism) is interposed between the anvil structure and the cylinder structure, so that the cylinder structure always maintains the same distance from the tip surfaces of the upper and lower anvil structures, and Pressurization is carried out while maintaining the horizontal position, and a remarkable effect has been recognized in that the upper and lower gasket structures are pressurized evenly and synchronously, especially in the initial stage of the pressurization process. There is.

In addition, in the recently proposed "powder press molding equipment" shown in Japanese Patent Publication No. 60-7597, an auxiliary press is installed in addition to the press that performs molding, and the auxiliary press is used to supply the powder into the mold. , filling, pre-pressurization, removal of pressure-molded products, and cleaning inside the mold.

[Problems to be solved by the invention] However, among the above conventional means,
The methods shown in Japanese Utility Model Publication No.-28310 and Japanese Utility Model Publication No. 49-11102 have the following problems.

(i) The main body of the link mechanism is made up of a total of 16 long and short connecting pieces that are machined with high precision and 24 pins that are pressurized with high precision, which requires considerable manufacturing time. Therefore, it is not cheap and the weight of the connecting piece is also large.

(ii) The connecting pieces of the link protrude from the front and rear of the press, making it bulky and lacking in compactness.

(iii) The device is usually placed inside a press machine, and the upper and lower anvil structures are fixed coaxially with the pressure axis of the press machine, so the pressurization process of the anvil structure and cylinder structure The press must be stopped during cleaning and inspection after completion of pressurization, removal of the pressurized object after pressurization, loading of the next pressurized object, etc., and therefore idle time becomes large. As a result, the operating rate of the press machine decreases, and production efficiency deteriorates.

In addition, the problem shown in Japanese Patent Publication No. 60-7597, which is shown in the above-mentioned Utility Model Publication No. 47-28310 and Utility Model Publication No. 49-11102, has solved the problem in item (iii) above, but this pressurization Perform preliminary pressurization with an auxiliary press before
There is a problem in that there is a double effort of transporting it to a molding press and pressurizing it again, which increases waste.

In view of the above-mentioned circumstances, the present invention provides a uniaxial pressurization type high pressure generator in which two anvil structures disposed facing each other synchronously and uniformly pressurize a pressurized body within a cylinder structure. Accordingly, the pair of gasket structures disposed between the cylinder structure and the anvil structure are also pressurized vertically evenly and synchronously, so that they can exhibit an even pressure sealing function vertically. To ensure that the cylinder structure, anvil structure, and gasket structure are pressurized coaxially without deviation or inclination of their respective axes, to improve the durability of the equipment, and to improve the pressure distribution in the pressure chamber. To improve uniformity, to prevent blowout accidents, etc., to facilitate handling such as loading and unloading of pressurized bodies, cleaning, inspection, and replacement of anvil structures and cylinder structures; It was created for the purpose of

[Means for Solving the Problems] The present invention provides a lower anvil structure which is removably disposed on a lower base and which can be moved up and down via a guide structure. A floating frame is arranged between the upper base and the lower base so as to be movable up and down, and a pressurized object is loaded into the inner hole of the floating frame, which is located between the upper anvil structure and the lower anvil structure. A cylinder structure is provided in which a gasket structure is interposed between the cylinder core and the anvil cores of the upper and lower anvil structures, and a string-like body having one end fixed to the upper base is attached to the upper base. The cord-like body is wound around a rolling body that is rotatably supported on a floating frame, and the other end of the cord-like body is fixed to a support body that projects from a lower base.

[Operation] The pressurized body is loaded into the inner hole of the cylinder core of the cylinder structure, and a gasket structure is inserted between the cylinder core and the anvil cores of the upper and lower anvil structures, and the press machine presses the pressurized body. Although it is pressurized,
At this time, the cylinder structure attached to the floating frame is always maintained in a horizontal state, and the distance from the axial center position of the cylinder core to the anvil core tip of the upper anvil structure and the anvil core tip of the lower anvil core structure is Distances are kept equal distances.

[Examples] Examples of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows an embodiment of the present invention, in which a lower base 1 that can run along a rail 15 via wheels 2 is provided with a stepped through hole 3 having a small diameter at the top and a large diameter at the bottom. The through hole 3 has a disk shape made of hardened steel, the collar 5 of which engages with the stepped portion 4 of the through hole 3 of the lower base 1, and the upper end of which can protrude above the lower base 1. A pedestal support block 6 is removably fitted into the pedestal support block 6, and a hollow hole 7 of a predetermined depth is bored in the upper surface of the pedestal support block 6 concentrically with the outer periphery of the pedestal support block 6. , a lower pedestal core 8 made of cemented carbide whose lower surface is supported by the pedestal support block 6 is fitted,
On the upper surface of the lower pedestal core 8, an anvil core 9 made of cemented carbide and having a smaller diameter than the core 8 is placed concentrically with the core 8. Further, the longitudinal cross-sectional shape of the anvil core 9 is such that the center side protrudes upward.

A multiple tightening ring 10 for reinforcing the anvil core 9 is fitted on the outer periphery of the anvil core 9, and a collar 1 is fitted on the outer periphery of the multiple tightening ring 10.
1 is formed. A fixture 14 having a stepped portion 13 is attached to the upper surface of the pedestal support block 6 via a bolt 12, and the multiple tightening ring 10 is attached to the pedestal support block 6 via a collar 11 by the step 13 of the fixture 14. is fixed. Further, a horizontally oriented fluid pressure cylinder 16 is disposed on the lower base 1, and a piston rod 16a of the fluid pressure cylinder 16 is fitted into a groove 17 provided on the outer periphery of the pedestal support block 6, so that the pedestal support block 6 is positioned downward. A stopper 18 is attached to prevent it from falling off. The pedestal support block 6, the lower pedestal core 8, the anvil core 9, the multiple tightening ring 10,
A lower anvil structure 19 is formed by fixtures 14 and the like.

Hollow guide posts 20 are erected at the four corners of the upper surface of the lower base 1, and the hollow guide posts 2
An upper base 22 is fixed to the upper surface of the guide pin 21 which is slidably fitted into the guide post 20, and a supply hole 23 for supplying pressure fluid into the guide post 20 is bored in the lower part of the guide post 20. A spring 24 is disposed between the upper end of the guide post 20 and the upper base 22 so as to surround the guide pin 21 and bias the upper base 22 upward. A guide structure 25 is formed by the guide post 20, guide pin 21, spring 24, and the like.

The upper base 22 is provided with a stepped through hole 26 having a large diameter at the top and a small diameter at the bottom. comes into contact with the step 28 of the through hole 26 of the upper base 22, and the lower end of the through hole 26 of the upper base 22
A disk-shaped pedestal support block 29 made of hardened steel that can protrude further downward than the pedestal support block 29 is removably fitted, and is attached to the lower surface of the pedestal support block 29 at a predetermined height concentrically with the outer periphery of the pedestal support block 29. A hollow hole 30 is bored, and an upper pedestal core 31 made of cemented carbide whose upper surface is supported by a pedestal support block 29 is fitted into the hollow hole 30.
An anvil core 32 made of cemented carbide and having a smaller diameter than the core 31 is brought into contact with the lower surface of the upper pedestal core 31 concentrically with the core 31 . Further, the vertical cross-sectional shape of the anvil core 32 has a center side projecting downward, and is vertically symmetrical to the anvil core 9.

On the outer periphery of the anvil core 32, the anvil core 3
A multiple tightening ring 33 for reinforcing the screws 2 is fitted, and a collar 34 is formed on the outer periphery of the multiple tightening ring 33. Also, pedestal support block 2
A fitting 37 having a stepped portion 36 is attached to the lower surface of the fitting 37 via a bolt 35.
Thus, the multiple tightening ring 33 is fixed to the pedestal support block 29 via the collar 34. Thus, the pedestal support block 29, the upper pedestal core 31,
An upper anvil structure 38 is formed by an anvil core 32, multiple tightening rings 33, fixtures 37, and the like.

A floating frame 40 is fitted into the guide post 20 via a guide bush 39 so as to be slidable up and down.
The floating frame 40 has a through hole 41 with a large diameter in the upper part and a small diameter in the lower part, and the upper and lower anvil cores 32 and 9
A cylinder core 42 made of cemented carbide or special steel is disposed concentrically with the cores 32 and 9 between them, and a multiple tightening ring 43 made of steel is provided on the outer periphery of the cylinder core 42 made of cemented carbide or special steel for reinforcement.
The multiple tightening ring 43 is fitted into the through hole 41, and the stepped portion 44 on the outer periphery of the multiple tightening ring 43 is engaged with the stepped portion 45 of the through hole 41. The edge shape of the inner hole of the cylinder core 42 is formed into a predetermined curved shape so as to maintain a predetermined distance between the opposing surfaces of the anvil cores 32 and 9, and is closed by the anvil cores 9 and 32. A pressure chamber is formed in the inner hole 42 . A cylinder structure 46 is constituted by the cylinder core 42 and multiple tightening rings 43, and a water cooling system is provided between the cylinder structure 46, the upper anvil structure 38, and the lower anvil structure 19 during pressurization. Spaces 47 and 48 are formed for this purpose. Further, rubber gaskets 49 and 50 for watertightness are arranged between the upper surface of the multiple tightening ring 43 and the lower surface of the multiple tightening ring 33 and between the lower surface of the multiple tightening ring 43 and the upper surface of the multiple tightening ring 10. I'm starting to get it. Although pipes for introducing cooling water into the spaces 47 and 48 are not shown, the upper and lower anvil structures 38 and 1
It is set at 9.

Pulleys 51 are rotatably supported at four sides of the floating frame 40, and a rope 52, one end of which is secured to a bracket 67 fixed to the lower surface of the upper base 22, is wrapped around the pulley 51, and the other end is attached to a guide. post 2
It is locked to a bracket 53 that projects from the bottom. Therefore, 1/2 of the weight of the floating frame 40 and the cylinder structure 46 is supported by the guide post 20 via the rope 52, and the total weight of the upper base 22 and the upper anvil structure 38 and the weight of the floating frame 40 and the cylinder structure are supported by the guide post 20 via the rope 52. 1/2 of the weight of object 46 is spring 24
The upper base 22 and the upper anvil structure 38 have a stroke L.
When the floating frame 40 and the cylinder structure 46 are raised and lowered by L/2, the cylinder structure 46 always maintains a horizontal state, and the heightwise center of the cylinder core 42 is always aligned with the upper anvil. The anvil core 32 of the structure 38 is set at an intermediate position equidistant from the lower end of the anvil core 32 and the upper end of the anvil core 9 of the lower anvil structure 19.

The structure of the pressurized body 54 housed in the pressure chamber in the cylinder core 42 is generally employed in this type of uniaxial pressure type high pressure generator, and is not unique to the present invention. Therefore, although a detailed explanation is omitted, there are a conductive ring, an electrode plate, a carbon heater, a thermal and electrical insulating plate fitted to the inner diameter of the conductive ring, a pressure medium, an insulator inside the carbon heater,
It consists of a sample, etc., which is stored in a capsule or the like and is subjected to pressure and high temperature. In addition, electricity is supplied to the pressurized body 54 through the upper and lower anvil structures 3.
It is now scheduled to be held on August 8th and 19th.

The structure and material of the gasket structures 55 and 56, which are interposed between the cylinder core 42 and the anvil cores 32 and 9 when pressurizing the pressurized body 54, are those generally used in this type of uniaxial pressurization type high pressure generator. It is the same as described above and is not specific to the present invention. The gasket structures 55 and 56 are machined and molded from homogeneous blocks of pyrofluorite (pyrophyllite), and are widely used in small devices due to their excellent performance. Since it is expensive, it is better to use a powder whose main component is inexpensive pyrofluorite powder, which is pressure-molded using a mold.

The above-mentioned high-pressure generating device is designed to be able to apply pressing force from above or below by a hydraulic press, but the illustration is omitted. In the high pressure generator shown in FIG. 1, the lower end of the anvil core 32 of the upper anvil structure 38 and the upper end of the anvil core 9 of the lower anvil structure 19 are connected to the pressurized body 54 loaded in the inner hole of the cylinder core 42. and gasket structure 5
5 and 56 and immediately before starting pressurization.

Next, the operation of the apparatus of the present invention will be explained in order of steps starting from the stage where the pressurization of the previous cycle is completed, with reference also to FIGS. 2a, b, and c. In addition, the second
In Figures a, b, and c, 57 is a handling table on which the high pressure generator can run, 58 is a pedestal for the lower anvil structure 19, and 59 is the upper anvil structure 3.
Reference numeral 8 indicates a hanging fitting, 60 indicates a groove for engaging the hanging fitting 59 provided on the upper surface of the pedestal support block 29 of the upper anvil structure 38, 61 indicates an extraction support, 62 indicates a punching pin, and 63 indicates fragments of the gasket structures 55 and 56. ,
64 is the empty space of the extraction support stand 61, 65 is the empty space 64
The inclined plate 66 provided inside the pressurized body 5 is removed.
4 and gasket structures 55 and 56.

Pressurization finished.

When pressurization is completed, the upper plate of the press (not shown) is attached to the upper base 22 of the high pressure generator.
Further away, the device is still on the lower platen of the press. During pressurization, the rails that had sunk from the upper surface of the lower panel rose up due to the force of fluid pressure.
By coming into contact with the wheels 2 of the lower base 1 and lifting it, the lower surface of the lower base 1 is separated from the lower plate of the press. At this time, the rails inside the press machine are at the same height as the rails outside the press machine, and the high pressure generator can be easily pulled out of the press machine.
Move to.

Separation of upper and lower anvil structures 38 and 19.

The handling table 57 is divided into three stations. At the first station A,
This is a station for separating the upper and lower anvil structures 38 and 19 from the upper base 22 and the lower base 1, or for combining them. That is, when the pedestal 58 rises from below the handling platform 57 and comes into contact with the bottom surface of the lower anvil structure 19, the stopper 18 on the lower base 1 is moved back by the fluid pressure cylinder 16, releasing its holding. The lower anvil structure 19 rests on the pedestal 58, and as the pedestal 58 descends, it separates from the lower base 1 and descends to the position shown in FIG. 2a.

On the other hand, for the upper anvil structure 38,
The hanging fitting 59 descends from above, engages with a groove 60 provided on the upper surface of the upper anvil structure 38, and is lifted upward by the force of fluid or the like. The lifted condition is shown in Figure 2a. Subsequently, after the main body of the apparatus moves to the next station B, the tip surfaces of the anvil cores 32 and 9 are cleaned and inspected for damage.

Removal of the pressurized body 54.

The main body of the apparatus is stopped at a predetermined position of station B in order to remove the pressurized body 54. In this state, the pressurized body 54 is still inserted into the inner hole of the cylinder core 42. Here, the extraction support stand 61
rises, and its upper surface abuts the lower surface of the cylinder core 42. Meanwhile, a punching pin descends from above and punches out the pressurized body 54 using fluid pressure. The pressurized body 54 and gasket structure fragments 63 that have been punched out fall into the hollow space 64 inside the extraction support stand 61, roll over the inclined plate 65, and fall into the collection tray 66. After punching, the punching support stand 61 and punching pin 6
2 descends or rises and returns to the original position.

Loading the pressurized body 54.

Subsequently, the main body of the apparatus moves to station C for loading a new pressurized body 54, and stops at a predetermined position. After cleaning debris from the pressurized body adhering to the inner hole of the cylinder core 42 and inspecting for damage, a new pressurized body 54 is loaded into the inner hole. Gasket structure 55,5
Place 6 in the designated position. If the lower gasket structure 56 is likely to fall due to gravity, it is temporarily fixed using a temporary adhesive or the like.

The upper and lower anvil structures 38 and 19 are combined.

The main body of the device consists of upper and lower anvil structures 38, 1
It returns to the separation and combination station A in step 9 and stops at a predetermined position. The upper anvil structure 38 and the lower anvil structure 19 are combined into the main body of the apparatus again by the reverse operation of the separation described above, and are held by the upper base 22 and the lower base 1, respectively. The tips of the anvil cores 32 and 9 are connected to the upper surfaces of the gasket structures 55 and 56 and the pressurized body 54,
It touches the bottom surface lightly, but no pressure is applied at this position yet. The state at this point is shown in FIG. The elastic force of the spring 24 supports the entire weight of the upper base 22 and the upper anvil structure 38 and 1/2 of the weight of the cylinder structure 46 and the floating frame 40, and supports the remaining 1/2 of the weight of the cylinder structure 46 and the floating frame 40. Since the guide post 20 supports the weight of /2, there is no possibility that this weight will be applied to the gasket structures 55, 56 and cause the gasket structures 55, 56 to collapse before the start of pressurization. Moreover, instead of relying only on the elastic force of the spring 24, pressure liquid is sent through the supply hole 23 at the bottom of the guide post 20 to lift the guide pin 21 to a predetermined height, thereby preventing the weight from being applied to the gasket structures 55, 56. You can also choose not to have one.

Moving the high pressure generator into the press machine.

When the high pressure generator moves on the rail to a predetermined position in the pressurized space of the press machine and stops, the rail on the upper surface of the lower plate of the press retreats into the plate, and the bottom surface of the lower base 1 of the high pressure generator It comes into contact with the top surface of the lower panel of the machine. In addition, the upper and lower anvil structures 3 are connected to the upper and lower anvil structures 3 with insulators placed in the required parts of the conducting wire for heating the pressurized body 54 in the high pressure generator connected to the upper and lower plates of the press machine.
8 and 19, and a pipe line that supplies cooling water to the spaces 47 and 48 is connected to the upper and lower anvil structures 3.
Connected to 8 and 19.

Pressurization.

The ram of the press presses the high pressure generator from above or below. Due to the pulley principle obtained by the combination of the pulley 51 and the rope 52, the upper anvil structure 38 and the lower anvil structure 19 synchronously close the upper and lower gasket structures 55, 56.
While compressing the pressurized body 54, compression of the pressurized body 54 is started.
In this case, what is important is that the gasket structure 5
5 and 56 are significantly compressed from their original thickness within a relatively short period of time after the start of pressurization, in other words, while the press load is still low at several tons to several tens of tons. As the compression stroke increases, the rate of increase in the compression stroke becomes smaller.
The formation of uniform upper and lower gaskets is greatly influenced by the way the compression is performed at the initial stage of pressurization.
Once a uniform upper and lower gasket is formed in the initial stage of pressurization, the uniformity is maintained even in the subsequent stage when the load is increased. The combination mechanism of the pulley 51 and rope 52 in the present invention is such that the upper and lower anvil structures 38 and 19 and the cylinder structure 46 are
The relative positions of the two are regulated, thereby solving the above-described drawbacks and problems of the prior art with a relatively simple mechanism. Once the press load becomes large, no regulating force is exerted, and the movement of the upper and lower anvil structures 38, 19 and cylinder structure 46 is simply followed.

When the press pressure reaches a predetermined height, cooling water and current are passed to heat the pressurized body 54 and hold it for a predetermined time. Thereafter, the pressure and temperature are gradually lowered to complete the pressurization process. As a result, pressurization ends again.

Note that a hard rubber bushing 27 is provided at the fitting portion between the upper anvil structure 38 and the upper base 22, etc.
etc., in the event of a blowout occurring during high pressure generation or damage to the upper and lower anvil structures 3.
8, 19, the main part of the cylinder structure 46 is destroyed, the balance in the pressure chamber is disrupted, and a huge force is generated that shifts the axes of the upper and lower anvil structures 38, 19 and the cylinder structure 46. Even in such a case, the bushing 27 and the like can absorb the impact force, and the guide structure 25 and the like are protected.

Furthermore, as mentioned above, if the balance in the pressure chamber is disrupted, an unbalanced load is applied to the cylinder structure, a tensile force that exceeds the allowable tensile stress of the rope 52 is applied, or an excessive force is applied to the rope support, the rope 52 or the support member at one end of the rope 52 is plastically deformed or broken to prevent damage to other parts.

FIG. 3 shows a double type pulley and rope regulating the movement of the floating frame 40 in the high pressure generator of the present invention. In addition to the pulley 51 and rope 52, there are pulleys 68 at four locations on the side of the floating frame 40. A rope 70 is rotatably supported and has one end fixed to a bracket 69 protruding from the lower base 1.
8, and the other end is fixed to a bracket 72 fixed to an arm 71 that projects downward from the lower surface of the upper base 22 and extends to the vicinity of the lower base 1. Even with such a configuration, the position of the cylinder structure 46 is restricted so that it is always located between the upper anvil structure 38 and the lower anvil structure 19 when the upper anvil structure 38 moves up and down.

FIG. 4 shows an example in which the parts of the pulley and rope regulating the movement of the floating frame 40 in the high pressure generator of the present invention are further modified from those in FIG.
8 are mounted on the same axis.

FIG. 5 shows an example in which a sprocket wheel (not shown) and a roller chain 73 are combined as means for regulating the movement of the floating frame 40. This roller chain 73 is connected, for example, to the bracket 53 with a locking bolt 74, and can be further fixed with a lock nut 75. By adjusting the position of the locking bolt 74, the length of the chain at the beginning of use of the device can be adjusted and the elongation of the chain after long-term use can be corrected.

In the embodiments of the present invention, a pulley and a rope, or a sprocket and a chain are used as means for regulating the movement of the floating frame, but the present invention can also be implemented using a combination of a belt pulley and a belt, or a toothed pulley and a toothed belt. (However, as a result of various tests, the combination of a sprocket wheel and a roller chain is optimal in terms of rigidity, precision, and durability.) Length adjustment means can also be provided for ropes and belts; A hard rubber bushing may be attached to the outer periphery of the pedestal support block that can be fitted to the lower base, and the upper and lower anvil structures may be structured to be pulled out laterally from the upper and lower bases; The upper and lower anvil structures may be fixed to the upper and lower bases, and the cylinder structure may be pulled out laterally from the floating frame, and various other changes may be made without departing from the gist of the present invention. Of course, it is possible to add .

[Effects of the Invention] According to the high pressure generator of the present invention, various excellent effects as described below can be achieved.

<> A large number of highly precisely machined parts are used to maintain the cylinder structure horizontally during the pressurization process and to maintain the distance from the anvil tip of the upper and lower anvil structures to the center of the cylinder core of the cylinder structure at the same distance. Instead of using a link mechanism that requires connecting pieces or pins, it is possible to use rolling elements and string-like bodies such as roller chains and sprockets, pulleys and ropes, etc., which are commercially available as standard products.
The device can be manufactured at low cost.

<> Simple structure and easy maintenance.

<> Since the device itself is lightweight and compact, by attaching a wheel device to the bottom of the device and connecting the inside and outside of the press machine with rails, the device body can be moved arbitrarily inside and outside the press. If at least two units of this device are prepared for one press machine, one press machine can be used during the pressurizing process.
The other machine can remove pressurized objects, clean the anvil structure and cylinder structure, and load new pressurized objects, allowing efficient use of the press and increasing operating rates. can.

＜＞ Since either the upper or lower anvil structure or the cylinder structure can be taken out from the apparatus body while the apparatus body is taken out of the press machine, cleaning, inspection, and cleaning of the anvil core are possible. Easy to do work such as replacement.

<> Since the axes of the anvil core and cylinder are aligned during the pressurization process, pressurization can be performed without difficulty.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of an embodiment of the high pressure generator of the present invention, Fig. 2 a, b, and c are explanatory diagrams of the operation of the high pressure generator of the present invention, and Fig. 3 is an explanatory diagram of an embodiment of the high pressure generator of the present invention. An explanatory diagram of another example of the mechanism for regulating the posture and position of the cylinder structure to be used, FIG. 4 is an explanatory diagram of still another example, FIG. 5 is an explanatory diagram of the same or still another example,
FIGS. 6a and 6b are explanatory diagrams of a conventional high pressure generator. In the figure, 1 is the lower base, 6 is the pedestal support block,
8 is a lower pedestal core, 9 is an anvil core, 10 is a multiple tightening ring, 14 is a fixture, 18 is a stopper, 1
9 is a lower anvil structure, 20 is a guide post,
21 is a guide pin, 22 is an upper base, 24 is a spring, 25 is a guide structure, 29 is a pedestal support block, 31 is an upper pedestal core, 32 is an anvil core, 33 is a multiple tightening ring, 37 is a fixture, 3
8 is an upper anvil structure, 40 is a floating frame, 42 is a cylinder core, 43 is a multiple tightening ring, 46 is a cylinder structure, 51 is a pulley, 52 is a rope, 54
indicates a pressurized body, and 55 and 56 indicate gasket structures.

Claims (1)

[Scope of Claims] 1. A lower anvil structure is removably disposed on a lower base, and an upper anvil structure is removably disposed on an upper base that can be moved up and down via a guide structure. A floating frame that is movably disposed between the base and the lower base is located between the upper anvil structure and the lower anvil structure, and a pressurized body is loaded into the inner hole, and the cylinder core and A cylinder structure having a gasket structure interposed between the anvil core of the upper and lower anvil structures is disposed, and a string-like body having one end fixed to the upper base is rotatably attached to the floating frame. A high pressure generator characterized in that the string-like body is wound around a pivotally supported rolling element, and the other end of the string-like body is fixed to a support body protruding from a lower base. 2. The high pressure generating device according to claim 1, wherein wheels are provided on the lower base so that the entire device can be moved between the inside and outside of the press machine. 3. The high pressure generating device according to claim 1 or 2, wherein the upper anvil structure can be extracted upward from the upper base, and the lower anvil structure can be extracted downward from the lower base. 4. The high pressure generating device according to claim 1 or 2, wherein the upper anvil structure can be pulled out laterally from the upper base, and the lower anvil structure can be pulled out laterally from the lower base. . 5. The high pressure generating device according to claim 1 or 2, wherein the cylinder structure can be extracted laterally from the floating frame. 6 At least one of the fitting parts between the upper anvil structure and the upper base, the fitting parts between the lower anvil structure and the lower base, and the fitting parts between the floating frame and the guide structure is made of an elastic material. A high pressure generating device according to claim 1, 2, 3, 4, or 5, in which a bush is interposed. 7. Claims 1 or 2 or 3 or 4 or 5 or 6, wherein a string-like body length adjustment mechanism is provided at at least one end of the string-like body. high pressure generator.