JP2005114122A - Connecting device of fluid passages - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To firmly hold a part having a connecting part connected with a connected part of a fluid passage on a metal mold side by being moved along a T-groove, to a base with specific attitude, and to provide an energizing means for that purpose, with the stable high energizing force. <P>SOLUTION: This connecting device of a fluid passage comprises a movable block capable of being moved forward and backward along the T-groove recessed on a base face 14 by a moving means, and a fluid passage connecting part 9 mounted on a front end of the movable block is pressed by the forward and backward movement of the movable block to be connected with a fluid passage connected part 6 opened on a side face of a metal mold 3 mounted on the base face. This connecting device comprises a first roller mounted on the movable block to be rolled on the base face along both sides of the T-groove in the forward and backward movement, a second roller 11 mounted on a supporting part projected from the movable block and entered into the T-groove, to be rolled on T-groove inner faces in parallel with the base face, of both projecting edges 40 forming a T-groove opening part, and the energizing means 12 for pressing one of the first roller and the second roller toward a rolling face. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a connection device capable of connecting and disconnecting a fluid passage for supplying and discharging a fluid to a mold fixed to a base surface having a T groove.

Some press bolsters and molds fixed to the base surface of the slide are provided with fluid passages, so that another fluid passage can be connected to and disconnected from the fluid passage from the side surface of the base portion. In addition, a device in which a connecting member is provided at the tip of the hose is moved forward and backward so as to be in a connected state when moving forward. In order to perform this connection and disconnection smoothly, an idler wheel that rolls the middle horizontal surface of the T-groove to the inner portion of the T-groove of the carriage that supports the connecting member that moves along the T-groove, and the back of the T-groove. And an urging means (compression coil spring) for urging one of the idle wheels toward the corresponding horizontal surface. In this configuration, the idler wheel is pressed against the corresponding horizontal plane by the urging means so as to spread the opposite horizontal plane on the inner surface of the T-groove, and the carriage is moved against the T-groove by the moment due to the aligning resistance at the time of connection. The point to be tilted is difficult to tilt.
Japanese Patent Laid-Open No. 10-311477

  In the prior art, since the coil spring is provided in the support portion arranged in the T-groove, the spring installation space cannot be made large. That is, the support portion has a size that can be installed in the T groove, and the length of the coil spring installed in the support portion cannot be larger than the depth dimension of the T groove. For this reason, even if it is going to enlarge the urging | biasing force of a coil spring, it cannot increase so much. In addition, since the effective number of turns of the coil spring cannot be increased, the spring constant increases and it is difficult to cope with variations in the T-groove dimension. That is, since the biasing force changes greatly by slightly changing the compression dimension of the coil spring, a desired biasing force cannot be obtained unless the installation state of the coil spring is adjusted for each different T-slot. This is because the dimensions may be different if they are different, and the biasing force is different if the stop position of the connecting member is different for connection. This urging force is required to increase as the number of fluid connection portions increases in a plurality of sets. Further, if the biasing force is not large to some extent, wear occurs, which adversely affects the life of the apparatus. The problem to be solved by the present invention is that the portion provided with the connecting portion that is connected to the connected portion of the fluid passage on the mold side along the T-groove is provided in a predetermined posture with respect to the base. It is to be able to hold strongly, and to make the urging means therefor a more stable and large urging force.

  The fluid passage connection device of the present invention includes a movable block that can be moved forward and backward by a moving means along a T-groove recessed in the base surface, and is open to a side surface of a mold attached to the base surface. In a fluid passage connection device in which a fluid passage connecting portion provided at a front end of the movable block is connected to a fluid passage connected portion by being pushed forward by the movable block, the base surface along both sides of the T-groove during the forward / backward movement The first roller provided in the movable block so as to roll and the movable surface so as to roll on the inner surface of the T groove parallel to the base surface of the projecting edges of the T groove opening. A second roller provided on a support portion that protrudes from the block and enters the T-groove; and an urging unit that presses one of the first roller and the second roller toward a rolling surface. .

  The state in which one of the first and second rollers is pressed against the rolling surface by the urging means is that the other supports the reaction force on the opposite side of the T groove opening edge, and the T groove opening edge or the vicinity of the edge Since the first roller and the second roller are sandwiched from both the inner and outer surfaces, the first and second rollers are pressed against the respective rolling surfaces, and the movable block is constant at an arbitrary moving position. Maintaining the posture. Therefore, when the movable block moves forward, the fluid passage connecting portion and the fluid passage connected portion of the mold are connected in a pressed state, and a constant posture is maintained, and the fluid passage connecting portion of the movable block is maintained. And the fluid passage connected portion of the mold are surely matched with each other, and a good connection is made. The arrangement and urging direction of the first roller and the second roller are such that when the urging means is constituted by a coil spring, an installation space for the coil spring can be provided in the movable block. Coil springs that are much longer than the depth dimension can be used. As a result, the effective number of windings of the spring can be increased, so that the spring constant can be reduced, the range corresponding to variations in the T-groove dimension can be increased, and a stable large biasing force can be obtained. The state in which the movable block is supported by a stable and large urging force is a state in which the movable block is difficult to tilt due to the resistance of the fluid passage connection, and accordingly, the diameter of the fluid connection portion can be increased, or when multiple couplings are used, that is, The number of couplings can be increased when a plurality of fluid connection portions are provided corresponding to the plurality of fluid connected portions.

  The fluid passage connecting portion is inserted into an inner hole opened in the front surface of the block, has a fluid passage that opens in a front end surface and connects to a fluid port of the block at a rear portion, and a rubber-like elastic ring in the middle of the middle It is preferable to have a structure having a floating structure supported by 1. In this configuration, since the fluid passage connecting portion has a floating structure, when the block is advanced and the front end surface of the fluid passage connecting portion of the block is pressed against the fluid passage connecting portion of the mold, the fluid passage is connected. Since the passage connecting portion can be displaced along the surface on the fluid passage connected portion side, the surface contact state is allowed. Thereby, a good connection state without fluid leakage can be easily achieved, and each of the good connection states when a plurality of sets of connection portions are provided can be easily obtained.

  The biasing means is provided with a coil spring in a compressed state so that a spring accommodating hole is formed in the block corresponding to the first roller, and a reaction force causes a biasing action on the first roller in the spring accommodating hole. It is good to have a configuration. In this configuration, since the spring accommodation hole is provided in the block, the spring accommodation hole having a depth larger than the depth dimension of the T groove can be obtained, and a coil spring longer than the conventional one can be used. Thus, even if a large effective winding number of the coil spring can be taken to reduce the spring constant and a large urging force is applied, variation in the T-groove dimension, that is, the portion that is pinched by the first and second rollers A stable biasing force can be obtained with respect to variations in dimensions. The stable large biasing force means that the holding force to hold the movable block on the base is large, and when applied to the press side slide side mold, it will cause acceleration or breakthrough during normal operation Can counter the acceleration of time. In other words, when such acceleration is applied, the block moves slightly in the direction opposite to the direction of acceleration relative to the slide or mold due to the inertial force when the coupling force integrated with the slide side is small. To do. If this is repeated, wear occurs in the portion that moves minutely and the life of the apparatus is shortened, but such a situation is prevented.

  The urging means has a spring accommodating hole formed in the support portion corresponding to the second roller, and the coil spring is pulled in a tensioned state so that a reaction force urges the second roller in the spring accommodating hole. It is preferable to provide a configuration. The action of the tension coil spring is substantially the same as that of the compression coil spring, and a stable and large biasing force can be obtained, the acceleration can be countered, and the shortening of the life can be prevented.

  It is preferable that the first roller and the second roller are axially supported via a rolling bearing. By being supported via the rolling bearing, even when the biasing force is considerably large, the resistance when the block is moved back and forth along the T-groove is extremely small, and the driving force may be small.

  In the present invention, the first roller is provided on the movable block so as to roll on the base surface along both sides of the T-groove when the movable block moves back and forth, and the second roller is formed on both protrusions forming the T-groove opening. It is provided on the support part that protrudes from the movable block so as to roll on the inner surface of the T groove and enters the T groove so that either one of the first roller and the second roller is pressed toward the rolling surface. Since the biasing means can be a long and powerful coil spring having a large effective winding number, the biasing force can be increased and the spring constant can be reduced. Is more difficult to tilt due to the connection resistance of the fluid passage, and the diameter of the fluid connection part can be increased by that amount, or when there are multiple couplings, that is, multiple fluid connection parts corresponding to multiple fluid connected parts It is possible to increase the number of coupling when, also an effect that can accommodate a wide range of variations in T groove dimensions.

  In the configuration in which the fluid passage connection portion has a floating structure, a good connection state without fluid leakage is easily possible, and there is an effect that each good connection state can be obtained when a plurality of sets of connection portions are provided.

  In the configuration in which the urging means is provided in a compressed state in the spring accommodating hole of the block corresponding to the first roller, a coil spring longer than the conventional one can be used. A stable and large urging force can be obtained, and when applied to a slide-side mold of a press machine, it can resist acceleration during use, such as when breakthrough occurs, and has the effect of preventing shortening of the device life due to wear.

  In the configuration in which the urging means is provided in a tensioned state in the accommodation hole of the support portion corresponding to the second roller, a stable and large urging force can be obtained and the acceleration is almost the same as in the case of the compression coil spring. It has the effect of preventing the shortening of life.

  In the configuration in which the first roller and the second roller are axially supported via rolling bearings, even when the urging force is considerably large, the resistance when moving the block back and forth along the T-groove becomes extremely small, and the drive The force can be small, and the drive source of the movable block push-pull device can be provided with a small output.

  When a plurality of fluid passage connection portions are provided in the movable block and applied to a plurality of sets of fluid passage connections, the urging means becomes a more stable and large urging force, which makes the movable block stronger against the base in a predetermined posture. Realized to hold.

  One embodiment of the apparatus of the present invention will be described with reference to FIGS. The fluid passage connecting device 1 includes, for example, four hoses 5 from the side of the slide 2 in each of the die fluid passages 4 provided in the die 3 attached to the slide 2 of the press machine. And the fluid is supplied and discharged. Each of the mold fluid passages 4 is opened to the side surface of the die to form four connected portions 6, and the fluid passage on the hose 5 side is connected to four fluid passages 8 provided in the movable block 7, These are connected to each connecting portion 9, and the movable block 7 is advanced and pressed to the mold side, whereby each connecting portion 9 is connected to the connected portion 6 of the mold side fluid passage 4, When it moves backward, it becomes disconnected. This operation of connecting or disconnecting is performed when the mold is used for replacement. As shown in FIG. 1, the fluid passage connecting device 1 includes a movable block 7, a connecting portion 9, a first roller 10, a second roller 11, an urging means 12, a connected portion 6, and the like. Next, these will be described.

  As shown in FIG. 2, the movable block 7 is formed in a rectangular parallelepiped block shape, and is provided in a predetermined T groove 13, that is, a base surface 14 that is a mold mounting surface of the slide 2, and guides the movable block 7. 13 is capable of moving forward and backward along its upper surface 13 and protrudes upward over the entire length of the movable block 7 in the front-rear direction (direction along the T-groove 13) with a width corresponding to the width w of the opening of the T-groove 12. A support portion 15 that has entered inside is provided. A screw hole is formed in the rear end surface of the support portion 15 as a coupling portion 17 for coupling the flexible strip 16 for driving and pulling. Further, four fluid passages 8 are provided in the movable block 7, and a hose connection port 18 connected to each of the fluid passages 8 is provided on the rear end face to connect the hose 5. In the figure, reference numeral 55 denotes a proximity switch, to which an electric wire 47 installed almost in parallel with the hose 5 is connected. The movable block 7 is moved forward and backward by a push / pull drive device 19 as shown in FIG. 1A, approaches the connected portion 6 provided on the side surface of the mold 3 in the advanced state, and slides 2 in the retracted state. It is located at the outer edge of the lower surface.

  As shown in FIGS. 2B and 3, the fluid passage connecting portion 9 is composed of a fixed portion 21, a moving portion 22, a spring 23, an elastic ring 24, and the like. Inserted into the mounting holes 25 drilled from the front surface of the movable block 7 at positions corresponding to the fluid passage connected portions 6 on the three sides. The mounting hole 25 is a stepped circular hole having a large diameter on the entrance side and a slightly small diameter on the back side, and the back is a dead end. The fixing portion 21 of the connecting portion 9 of the fluid passage is formed in a stepped cylindrical shape, is inserted into the mounting hole 25, is screwed with the screw portion 26, and is fixed with a space remaining in the inner portion. The inner space forms a portion of the fluid passage 8 of the movable block 7. In the figure, 27 is an O-ring. The moving part 22 is inserted into the inner hole of the fixed part 21 with a margin on the outer periphery, and is formed in a substantially mushroom shape with the entrance side being enormous and thin at the back, and the rear end part is formed thinly. 21 is formed in a valve body 29 that protrudes into the fluid passage 8 through a valve hole 28 provided at the bottom of the inner hole 21 and is attached with an O-ring, and opens to the front end face on the mold 3 side to reach the rear part. It has an internal passage 30 that opens to the outer periphery in the middle. In the drawing, 31 is a spherical surface forming member that is screwed so as to form the outer periphery of the distal end portion of the moving portion 22, and an O-ring 32 that serves as a seal when the fluid passage is connected to the distal end surface slightly from the distal end surface of the moving portion 22. It is held so as to protrude. The spring 23 is a coil spring, and is arranged between the rear inner peripheral surface of the fixed portion 21 and the inner peripheral surface of the moving portion 22 and biases the moving portion 22 to slightly protrude from the front end surface of the fixed portion 21. ing. The elastic ring 24 is a ring formed of a rubber-like elastic material, and is provided between the back of the large diameter portion of the stepped inner hole of the fixed portion 21 and the rear side of the spherical surface forming member 31 of the moving portion 22. The moving unit 22 is supported so as to be displaceable in an arbitrary direction although it has a small size.

  As shown in FIG. 2, the first roller 10 is provided in a state in which a part of the outer periphery protrudes from the upper surface of the movable block 7 on both outer sides of the support portion 15 at a position offset to the rear side in the front-rear direction of the movable block 7. It has been. Each of these first rollers 10 is similarly formed by a ball bearing having an outer ring, and has a structure in which a biasing means 12 is provided on the first roller 10 in this embodiment, and a shaft 33 for supporting the same. A short columnar holding portion 34 that supports the shaft 33 is configured. The short columnar holding portion 34 is provided with a notched portion 35 having a roller width from one end, and is arranged so as to sandwich the first roller 10 in the notched portion 35 and supported by a shaft 33. The shaft 33 is also supported by the holding portion 34. 34 is provided so that both ends protrude from the outer peripheral surface. The holding portion 34 of the first roller 10 has a circular hole 36 inserted therein and slidable downward from the upper surface of the movable block 7, inserted into the circular hole 36, and the circular hole 36. It is urged upward by the urging means 12 having a structure in which a relatively strong coil spring 37 is disposed between the bottom of the holding portion 34 and the lower end of the holding portion 34. In order to support the urging force, the shaft 33 is supported at both ends by a shaft support hole 38 formed at a right angle and horizontally from the side surface of the movable block 7, and the outer periphery of the first roller 10 is supported. Both about 1 to 1.5 mm protrude from the upper surface of the movable block 7 in the same manner, and the shaft support hole 38 is formed in a large diameter so that it can be retracted against the urging force of the coil spring 37 from the protruding state. Yes. The shaft 33 is provided with an appropriate stopper.

  The second roller 11 is formed of a ball bearing in the same manner as the first roller 10, and as shown in FIG. Four pieces are respectively supported by end portions protruding on both sides of the lever. The second roller 11 rolls on the inner horizontal surfaces 41 and 41 of both protruding edge portions 40 forming the narrowed opening portion of the T groove 13. The width dimension of the support portion 15 is a dimension that is guided by the projecting edge portion 40 of the T-groove 13 and smoothly moves forward and backward. The position of the first roller 10 is located slightly ahead of the position of the second roller 11 behind.

  The protruding edge portion 40 of the T groove 13 is located between the first roller 10 and the second roller 11, and the urging force of the urging means 12 acts and the first roller 10 slides 2. The second roller 11 is in contact with both horizontal surfaces 41, 41 inside the T-groove protruding edge 40 in a pressurized state at positions on both sides of the T-groove 13 on the lower surface of the groove. The first roller 10 and the second roller 11 are strongly pressed against the rolling surface. However, since the ball roller is interposed, the movable block 7 is light and can be moved forward and backward smoothly.

  The connected portion 6 of the fluid passage is a circular opening edge formed on the mold side surface 42 (surface perpendicular to the slide lower surface) of the mold 3 attached to the lower surface of the slide 2. The surface is a portion formed on a smooth surface that can be sealed in contact with the O-ring 32.

  The fluid passage connection device 1 is used by connecting the movable block 7 to, for example, a push-pull drive device 19. As the push-pull drive device 19, for example, a push-pull drive device 19 that is conventionally used for a movable clamping device may be applied. That is, the push-pull device moves the clamp portion that clamps the die of the press machine to the clamp position and the retreat position, and push-pull flexibility for transmitting the push-pull force that moves along the T-groove. It consists of a body and its drive. As shown in FIGS. 1 (a) and 4, the schematic structure of the push / pull drive device 19 used in the fluid passage connecting device 1 of this embodiment is as follows. A driving device 43 for driving the striatum 16 is provided. A particularly preferred push-pull flexible strip 16 is provided with a large number of convex portions 46 adjacent to the longitudinal direction of the toothed belt 44 on the back surface opposite to the teeth 45 of the toothed belt 44, and the convex portions 46 are toothed. A holding portion 48 for holding the fluid pressure hose 5, the electric wire 47, and the like is formed along the back surface of the belt 44, and formed so as to be able to advance and retreat while being guided in a predetermined T groove 13. The distal end of the flexible strip 16 is fixed to the connecting portion (screw hole) 17 of the movable block 7 with a screw. In this configuration, since the push-pull flexible strip 16 is lightweight, the driving power may be small, and it is effective for reducing the weight of the apparatus and reducing energy consumption. Further, the drive device 43 displaces the other end of the gear by engaging the tooth 45 of the toothed belt 44 of the push-pull flexible strip 16 with one end fixed by the air cylinder 50 (see FIG. 5). In this configuration, the groove 13 is moved back and forth. Apart from this, although not shown in the figure, a configuration may be adopted in which the gear engaged with the tooth 45 of the toothed belt 44 is moved forward and backward by rotating forward and backward at a fixed position.

  FIG. 5 is a circuit diagram showing an example of a control circuit of the fluid passage connection device 1 using the push-pull drive device 19. By operating the electromagnetic switching valves 51, 52 and 53 in the figure, the air cylinder 50 of the driving device 43 is operated by the pressure air from the air supply source 54, and the movable block 7 moves forward and backward, so that the mold side The connecting portion 9 of the corresponding movable block 7 is simultaneously connected to and disconnected from the connected portion 6 of the fluid passage. In the connected state, the valve hole 28 is opened, and pressurized air is supplied via the hose 5 and discharged.

  In the fluid path connecting device 1, the movable block 7 moves forward by being pushed and driven by the push / pull drive device 19, and the moving portion 22 of the connecting portion 9 of the movable block 7 is connected to the connected portion 6 of the mold 3. It is pressed through the spring 23, and is thereby connected. By maintaining the pressing force at this time, the connection state is maintained. In the connected state, the moving portion 22 is relatively displaced rearward with respect to the movable block 7, and the valve hole 28 in which the valve body 29 at the rear end portion is closed before the connection is opened. An internal fluid passage 8 that communicates with the fluid passage 8 communicates with the internal passage 30 of the moving portion 22, and the internal passage 30 communicates with the fluid passage 4 on the mold 3 side. When the movable block 7 moves forward, the first roller 10 and the second roller 11 are strongly urged by the urging means 12 with a stable and large force, that is, the depth dimension of the T groove 13 as the urging means 12. By providing a circular hole 36 having a depth significantly larger than that of the movable block 7 to accommodate the long coil spring 37 and increasing the effective number of turns to reduce the spring constant, the protruding edge 40 of the opening of the T groove 13 is formed. The thickness of the protruding edge 40 of the T-groove opening is stable because the force is clamped with a large force in the thickness direction and the magnitude of the force does not vary much even if there is a slight variation in the clamping thickness. Even if the dimension varies depending on the position, the large clamping force hardly varies, so that even if a reaction force that is large to some extent that the connecting portion 9 is pressed against the connected portion 6 acts on the movable block 7, the posture does not change. Therefore, the connection is made with an accurate positional relationship. In addition, the fact that a stable and large clamping force can be obtained means that it is possible to counter large accelerations during use, such as when an excessive impact force acts on the slide side due to the work of the press machine, that is, when breakthrough occurs, and a minute relative movement This significantly reduces the occurrence of wear due to repeated operations and shortens the life of the device. Further, since the first roller 10 and the second roller 11 are formed by ball bearings, the moving resistance of the movable block 7 is extremely small and can be smoothly moved with a small force, and almost all of the pressing force of the push-pull drive device 19 is achieved. Is used as a pressing force for connection, a predetermined pressing force is reliably transmitted and a reliable connection state of the fluid passage is obtained. In this connection, when the movable block 7 is slightly tilted for some reason, the action when the O-ring 32 at the front end is pressed against the connected portion 6 due to the presence of the elastic ring 24 of the connecting portion 9. In response to the force, each of the moving parts 22 is displaced so as to correct the tilted state, that is, each of them is floating, and each of the O ring 32 has a pressing state in which the entire circumference of the front end surface is in contact with each other. Are connected to each other without any fluid leakage.

  In the second embodiment, the biasing means 12 of the first roller 10 of the first embodiment is not provided, the first roller is provided to roll at a fixed position, and the biasing means is provided on the second roller 11. Unlike the first embodiment, the other parts are the same and are not shown. In addition, the structure which provided the urging | biasing means in the 2nd roller 11 goes below from the upper end surface of the support part 15 so that the position where the axis | shaft 39 of the 2nd roller 11 crosses in FIG.2 (c) may cross | intersect. A deep spring accommodating hole that extends sufficiently below the bottom surface of the slide 2 is formed, and a spring engaging portion is provided at the bottom of the spring accommodating hole, and the support portion 15 has a large diameter so that the shaft 39 can be slightly displaced up and down. This is a configuration in which a tension coil spring is provided so as to be supported by a circular hole or a long hole and pulled between the spring engaging portion and the shaft 39. In this case, a tension coil spring is provided in the same manner in each of the two sets of the second roller 11 in the front and rear. The first roller and the second roller of the second embodiment clamp the T-groove opening edge with a large and stable force in the same manner as the roller of the first embodiment by the action of the urging means. Therefore, substantially the same effect as that of the first embodiment can be obtained.

  When fluid (air or water, etc.) is supplied to and discharged from a die attached to a press, etc., when driving the actuator attached to the die, controlling the die temperature, and cleaning the inner surface of the die by air jet cleaning, etc. Can be used.

1 shows Embodiment 1 of the present invention, (a) is a front view showing a use state, (b) is a view taken along arrow A in (a), (c) is a sectional view taken along line BB in (a), (d). FIG. 4 is a right side view of (c). The movable block of the Example is shown, (a) is a plan view with the support part removed, (b) is a front view, (c) is a right side view, (d) is a left side view (FIG. 1 (b) enlarged). Figure). One of the connection parts of the embodiment is shown, (a) is a longitudinal sectional view before connection, (b) is a longitudinal sectional view of the connection state, and (c) is a left side view of (a). Corresponding to FIG. 1 (a), (a) is a right side view, (b) is a partially omitted rear view, and (c) is a partially omitted plan view. It is a circuit diagram which shows an example of the control circuit of the Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Connection apparatus of fluid path 2 Slide 3 Mold 4 Mold fluid path 5 Hose 6 Connected part 7 Movable block 8 Fluid path (of movable block)
DESCRIPTION OF SYMBOLS 9 Connection part 10 1st roller 11 2nd roller 12 Energizing means 13 T groove 14 Base surface 15 Supporting part 16 Pushing and pulling flexible strip 17 Coupling part 18 Hose connection port 19 Pushing and pulling drive device 21 Fixing part 22 Moving part 23 Spring 24 Elastic ring 25 Mounting hole 26 Threaded portion 27 O-ring 28 Valve hole 29 Valve body 30 Internal passage 31 Spherical surface forming member 32 O-ring 33 Shaft 34 Holding portion 35 Cut-in portion 36 Circular hole 37 Coil spring 38 Shaft support hole 39 Shaft 40 Projection Edge 41 Horizontal Surface 42 Mold Side 43 Drive Device 44 Toothed Belt 45 Tooth 46 Convex 47 Electric Wire 48 Holding Unit 50 Air Cylinder 51, 52, 53 Electromagnetic Switching Valve 54 Air Supply Source 55 Proximity Switch

Claims (5)

  A movable block that can be moved forward and backward by a moving means along a T-groove recessed in the base surface is provided, and the movable block is connected to a fluid passage connected portion that opens to a side surface of a mold attached to the base surface. In the fluid passage connection device in which the fluid passage connecting portion provided at the front end is pressed and connected by the advancement of the movable block, the movable block is caused to roll on the base surface along both sides of the T-groove during the forward and backward movement. Both the first roller provided and the protruding edge forming the T groove opening project from the movable block so as to roll on the inner surface of the T groove parallel to the base surface and enter the T groove. A fluid path connecting device comprising: a second roller provided in a support portion; and an urging means that presses one of the first roller and the second roller toward a rolling surface.   2. The fluid passage connection device according to claim 1, wherein the fluid passage connection portion is inserted into an inner hole opened in the front surface of the block, and is opened in a front end surface and connected to a fluid port of the block at a rear portion. And a fluid passage connecting device characterized by having a floating structure halfway supported by a rubber-like elastic ring in the inner hole.   The fluid passage connecting device according to claim 1 or 2, wherein the biasing means has a spring accommodating hole formed in the block corresponding to the first roller, and a reaction force is generated in the spring accommodating hole. A fluid passage connection device, wherein a coil spring is provided in a compressed state so as to cause an urging action on a first roller.   3. The fluid passage connecting device according to claim 1, wherein the biasing means has a spring accommodating hole formed in the support portion corresponding to the second roller, and a reaction force in the spring accommodating hole. A device for connecting a fluid passage, wherein a coil spring is provided in a tensioned state so as to cause a biasing action on the second roller.   The fluid passage connecting device according to claim 1, 2, 3, or 4, wherein the first roller and the second roller are axially supported via a rolling bearing. Connecting device for fluid passage.

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