JP2012016897A - Resin pipe fusion apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a resin pipe fusion apparatus capable of joining each of various kinds of main pipe joints to a saddle joint.SOLUTION: The resin pipe fusion apparatus A is provided with: a clamp portion 4 holding the main pipe joint 2; a pressing portion 5 for pressing the saddle joint 3 to be joined to the main pipe joint 2 toward the main pipe joint 2 in the horizontal direction; and a heater 6 arranged between the outer peripheral surface of the main pipe joint 2 and the joining surface of the saddle joint 3 to heat and fuse the outer peripheral surface and the joining surface. In the resin pipe fusion apparatus A, the clamp portion 4 is provided with: a placing stand 25 on which the main pipe joint 2 is placed and which is supported from the lower side; a fixing portion 26 freely advanced toward and retracted from the placing stand 25 and pressing the main pipe joint 2 from the upper side to fix the main pipe joint 2 to the placing stand 25; and a receiving portion 27 freely advanced toward and retracted from the main pipe joint 2 in the horizontal direction to support the main pipe joint 2 from the opposite side of the pressing portion 5. Here, the main pipe joint 2 is held from the vertical direction and horizontal direction.

Description

  The present invention relates to a resin pipe fusion apparatus for joining a main pipe joint and a saddle joint.

  In recent years, resin pipes such as polyethylene, which are excellent in earthquake resistance, corrosion resistance, and the like, are frequently used as gas pipes and water pipes. When connecting this kind of resin pipes or joining a resin pipe and a saddle joint, the connecting portion between the resin pipes or the joint surface between the resin pipe and the saddle joint is heated and melted, and both are pressed and fused. A resin pipe fusion apparatus is used. Conventionally, as such a resin pipe fusion apparatus, what is shown in the following patent document 1 is known.

  The resin pipe fusion apparatus shown in Patent Document 1 is used for butt fusion for connecting resin pipes, and grips the outer periphery of the ends of a pair of resin pipes to be connected with a fixed clamp and a movable clamp, respectively. The heater is disposed between the opposite end faces of the resin pipe, the pipes are brought close to each other and pressed against the heater face, the opposite end faces are heated and melted for a predetermined time, and then the pipe is separated from the heater and the heater is connected to the pipe. Retracted outward, the melted tubes are pressed together for a predetermined time, and both are crimped and connected. This resin pipe fusion apparatus is also applicable to the joining of a resin pipe and a saddle joint.

JP-A-6-8331

  However, according to the conventional resin pipe fusion apparatus, the clamp grips the outer peripheral surfaces of the two resin pipes, and the end faces of the resin pipes are moved in the same axial direction to be fused. Applicable when the saddle joint is pressed from the direction perpendicular to the axial direction of the pipe line penetrating in one direction of the pipe joint and the joint surface of the saddle joint is fused to the outer peripheral surface of the main pipe joint. There was a problem that was difficult.

  In addition, the fixed clamp and the movable clamp that hold the pipe to be fused are manufactured as dedicated clamps that are applied to one pipe, and one type of clamp cannot handle many types of pipes. There was a problem that equipment for each different pipe was required, and the equipment efficiency was poor.

  Further, according to the above-described conventional apparatus, the end faces of the resin pipes are melted with one type of heater fixed to the apparatus. In the case of joining the main pipe joint and the saddle joint, the main pipe joint is used. Because the heater must be formed according to the curved shape of the outer peripheral surface and the joint surface of the saddle joint, it cannot be applied to the joining of main joints having various types of diameters and saddle joints. There was a problem of being bad.

  The resin pipe fusion apparatus according to the present invention joins a saddle joint to a main pipe joint, and provides the following means in order to solve the above problems.

  The invention of claim 1 includes a clamp part that holds the main pipe joint, a pressing part that horizontally presses a saddle joint joined to the main pipe joint toward the main pipe joint, and an outer periphery of the main pipe joint. And a heater for heating and melting the outer peripheral surface and the joint surface, and the clamp portion mounts the main pipe joint. A mounting table that is supported from below; a fixing portion that freely advances and retracts toward the mounting table and presses the main joint from above to fix it to the mounting table; and a horizontal direction toward the main coupling And a receiving portion that supports the main joint from the opposite side of the pressing portion, and holds the main joint from the upper and lower sides and the horizontal direction.

  According to a second aspect of the present invention, in the resin pipe fusion apparatus according to the first aspect, a first heater suspension member is formed in the pressing portion, and the first heater suspension member can be moved forward or backward with respect to the upper position of the mounting table. 2 heater suspension members are installed, and the heater includes an arm extending in a horizontal direction, and the arm is associated with the first heater suspension member and the second heater suspension member advanced to the upper position. By combining, the heater is suspended so as to be freely installed.

  According to a third aspect of the present invention, in the resin pipe fusing apparatus according to the second aspect, the arm includes a first long hole and a second long hole extending in an extending direction of the arm, and the first long hole is provided. An engagement pin provided on the first heater suspension member is slidably engaged with the elongated hole of the first heater, and an engagement pin provided on the second heater suspension member is engaged with the second elongated hole. A mating pin is slidably engaged.

  According to a fourth aspect of the present invention, in the resin pipe fusion apparatus according to any one of the first to third aspects, the heater includes a holding plate and a curved surface that heats and melts the outer peripheral surface of the main pipe joint. And a main joint heating plate that is detachably attached to the holding plate, and a saddle joint heating plate that has a curved surface that heats and melts the joining surface of the saddle joint and is detachable from the holding plate. It is characterized by that.

According to the resin pipe fusion apparatus according to the present invention, the following effects can be obtained by the above-described solving means.
That is, according to the resin pipe fusion apparatus according to claim 1, the clamp part fixes the main pipe joint from the up and down direction by the mounting table and the fixing part, and the main pipe joint from the opposite side of the pressing part by the receiving part. Since it supports, it becomes possible to hold | grip a saddle joint and a main pipe joint easily and reliably, and there exists an effect that a main pipe joint and a saddle joint can be joined appropriately.

  In addition, by moving the fixed part up and down in accordance with the diameter of the main joint and moving it up and down in accordance with the diameter or shape of the main joint, a single device can have various diameters or shapes. It can be adapted to various types of main pipe joints, and the equipment can be rationalized to reduce the equipment cost.

  According to the resin pipe fusion apparatus of the second aspect, the heater arm can be installed on the first heater suspension member provided in the pressing portion and the second heater suspension member advanced to the upper position of the mounting table. Because it is configured to be able to be suspended, the heater that matches the curvature of the outer periphery of the main pipe joint can be freely selected and replaced, so that the equipment cost can be reduced and the equipment cost can be reduced. The heater can be easily installed, and the work can be efficiently performed.

  According to the resin pipe fusion apparatus of the third aspect, the engagement pins of the first and second heater suspension members are slidably engaged with the first and second elongated holes, respectively, and Since the heater can be advanced and retracted with respect to the main joint as the pipe joint is advanced and retracted, the operation of the heater can be performed simultaneously by the operation of the pressing portion, and the melting operation is easily and simply performed. There is an effect that can be.

  According to the resin pipe fusion apparatus according to the fourth aspect, since the main pipe joint heating plate and the saddle joint heating plate are detachably attached to the heater, a plurality of heating plates having different curved surfaces should be prepared. Thus, the heating plate can be exchanged in accordance with the curved outer peripheral surface of the main pipe joint, and there is an effect that the equipment can be rationalized and the equipment cost can be reduced.

These are the top views of the resin pipe fusion apparatus shown as one Embodiment of this invention. These are the front views of the resin pipe fusion apparatus shown as one Embodiment of this invention. These are the figures seen from the XX line of FIG. These are perspective views which show the main pipe joint and saddle joint used as the joining object of the resin pipe fusing apparatus shown in FIG. These are perspective views which show the state which installed the heater in the fixed position in the resin pipe | fusion fusion apparatus shown in FIG. These are the perspective views which show the state which made the main pipe joint grip the clamp part in the resin pipe | fusion fusion | fusion apparatus shown in FIG. FIG. 2 is a perspective view showing a state in which a main pipe joint and a saddle joint are melted by a heater in the resin pipe fusion apparatus shown in FIG. 1. These are the perspective views which show the state which has joined the saddle joint to the main pipe joint in the resin pipe fusing apparatus shown in FIG.

Hereinafter, embodiments of a resin pipe fusion apparatus according to the present invention will be described with reference to the drawings.
FIG. 1 to FIG. 3 are views showing an entire configuration of a resin pipe fusion apparatus A shown as an embodiment of the present invention. FIG. 1 shows a resin pipe fusion apparatus A (hereinafter, a part of which is omitted). FIG. 2 is a front view of the device A, and FIG. 3 is a view of the device A taken along the line XX in FIG.

  As shown in these drawings, the device A is a device for fusing the saddle joint 3 to the main pipe joint 2 on the base 1, and holds the clamp part 4 that holds the main pipe joint 2 and the saddle joint 3. Then, the pressing portion 5 that presses this toward the main pipe joint 2 is disposed between the outer peripheral surface of the main pipe joint 2 and the saddle joint 3, and the joint surface between the outer peripheral surface of the main pipe joint 2 and the saddle joint 3. 2 is heated and melted, and the first heater suspension member 7A and the second heater suspension member 7B shown in FIG.

Details of the main pipe joint 2 and the saddle joint 3 to be fused with the apparatus A are shown in FIG.
The main pipe joint 2 is formed by connecting a pipe 2b having the same shape to a central part of a cylindrical pipe 2a so that the axes are orthogonal to each other and communicate with each other.

  The central part of the pipe line 2a is a large-diameter part 2c that is slightly larger in diameter than the other parts, and the saddle joint 3 is fused to the opposite side of the part where the pipe line 2b is located in the large-diameter part 2c. The

The saddle joint 3 includes a saddle portion 3a having an arcuate cross section fused to the outer peripheral surface of the conduit 2a, and a conduit 3b for connecting a branch pipe connected to the outer surface 8 of the saddle portion 3a.
The curvature of the inner surface (joint surface) 9 of the saddle portion 3a matches the curvature of the outer peripheral surface 10 of the large-diameter portion 2c of the pipe line 2a, and the inner surface 9 of the saddle part 3a closely contacts the outer peripheral surface 10 of the pipe line 2a. Can be made.
On the other hand, the curvature of the outer surface 8 of the saddle portion 3 a in the saddle joint 3 is a constant curvature regardless of the curvature of the inner surface 9.
The main pipe joint 2 and the saddle joint 3 are made of a thermoplastic synthetic resin such as polyethylene.

  2 and 3, the base 1 is provided with casters 22, 22... And adjuster bolts 23, 23... On a lower surface of a frame 21, and a table 24 is fixed on the upper surface. , 22... Can be freely moved, and the lengths of the adjuster bolts 23, 23.

  As shown in FIG. 2, a support column 32 including a support frame 32 a and a reinforcement frame 32 b is erected on one end side of the table 24 in the longitudinal direction on the table 24. The support plates 33 and 34 are fixed, and an air cylinder 35 is fixed to the front surface of the support plate 34 (the surface opposite to the surface on which the support plate 33 is disposed). As shown in FIG. 3, the air cylinder 35 drives a piston rod 37 projecting downward from the cylinder portion 36 in the vertical direction, and a plate 30 is fixed to the lower end of the piston rod 37.

  As shown in FIG. 3, guide rods 38, 38 are fixed to both ends of the plate 30 so as to protrude upward, and the guide rods 38, 38 are guide blocks 39, fixed to the support plate 34, It is inserted in 39 holes 40, 40 so as to be movable in the vertical direction.

  Under this configuration, the air cylinder 35, the guide rods 38 and 38, the guide blocks 39 and 39, and the plate 30 constitute a drive mechanism 31.

  The clamp portion 4 holds the main pipe joint 2 and is fixed on the table 24 as shown in FIGS. 2 and 3, and a mounting table 25 for placing the main pipe joint 2 and supporting it from below. When the main joint 2 mounted on the mounting table 25 is pressed and fixed from above toward the mounting table 25 from above, and the main coupling 2 is pressed from the horizontal direction by the pressing unit 5. A receiving portion 27 is provided for receiving and supporting the main pipe joint 2 on the side opposite to the pressing portion 5.

  The mounting table 25 includes a flat plate 28 fixed on the table 24 so as to be positioned below the drive mechanism 31, and seat plates 29 and 29 erected on the flat plate 28. , 29 has a curved surface with a central portion recessed downward.

The fixed portion 26 is two rods whose upper end portions are fixed to the plate 30, and the main joint 2 is mounted by pressing the upper surface of the pipe line 2 a of the main joint 2 with the lower end portion of the rod. It is fixed on the mounting table 25.
The fixed portion 26 can be advanced or retracted in the vertical direction with respect to the main pipe joint 2 placed on the placing table 25 by the drive mechanism 31.

As shown in FIGS. 1 and 2, the receiving portion 27 includes a rod 45 and a circular plate 46 fixed to the rod 45, and is supported by the lower end portion of the support frame 32 a of the support column 32, The plate surface of the plate 46 is provided so as to face the end surface of the pipe line 2 b of the main pipe joint 2 and to be located on the opposite side of the pressing portion 5 with the main pipe joint 2 interposed therebetween.
The rod 45 is inserted into a support tube 47 fixed to the support frame 32a, and can move in the direction of the axis 48 in the support tube 47 having the same axis as the pressing axis 48 of the pressing portion 5. Yes.

An operation member 49 is screwed to the support tube 47, and the rod 45 is fixed in the support tube 47 by tightening the operation member 49.
The receiving part 27 inserts the tip of the rod 45 into the pipe 2b with respect to the main pipe joint 2 mounted on the mounting table 25, and brings the plate 46 into contact with the opening end surface of the pipe 2b. Arranged.

  As shown in FIGS. 1 and 2, the pressing portion 5 includes a moving body 50 that holds the saddle joint 3 and moves the saddle joint 3 in the direction of the main pipe joint 2, and an air cylinder 51 that drives the moving body 50. ing.

  The air cylinder 51 serving as a drive source for driving the moving body 50 has a cylinder portion 75 fixed on the table 24, and a tip end portion of a piston rod 76 protruding from the cylinder portion 75 via a connecting rod 77. The moving body 50 is connected.

  The movable body 50 includes a horizontal plate 62 extending in a direction orthogonal to the axis 48, cylinders 63 and 63 fixed to both ends of the horizontal plate 62, and an axis 48 from the center of the horizontal plate 62. The holding member 64 provided so that it may protrude in the main pipe joint 2 direction mounted in the mounting base 25 above is provided.

  As shown in FIGS. 1 and 2, guide rods 60 and 60 are disposed on both sides of the pressing axis 48 of the pressing portion 5 in parallel with the axis 48. The guide rods 60, 60 are supported by support stands 61, 61 whose both ends are fixed on the table 24, and are positioned above the table 24 by a certain dimension.

  The guide rods 60, 60 are inserted through cylinders 63, 63 of the moving body 50 so as to be relatively movable, and guide the moving body 50 in the direction of the axis 48 by driving the air cylinder 51.

FIG. 5 shows a state in which the heater 6 is installed between the main pipe joint 2 and the saddle joint 3 mounted on the mounting table 25, and the rear surface of the apparatus A (that is, the side opposite to the side shown in FIG. 2). It is the figure seen from.
As shown in FIG. 5, the holding member 64 holds the saddle joint 3 at its tip, and includes a holding wall 65 that holds the saddle 3 a of the saddle joint 3 at the tip, and the holding wall 65. A holding hole 66 for inserting and arranging the pipe line 3b of the saddle joint 3 from the center of the front surface 65a to the rear is provided.

  The holding wall portion 65 has a curved surface with a constant curvature and a recessed central portion so that the front surface 65 a can be in close contact with the outer surface 8 of the saddle portion 3 a in the saddle joint 3.

  As shown in FIG. 2, the horizontal plate 62 is formed with brackets 68, 68 protruding rearward at both ends thereof, and the first heater suspension member 7A is formed on these brackets 68, 68. It is fixed.

  The first heater suspension member 7 </ b> A includes a fixed plate portion 70 fixed to the brackets 68, 68, a protruding plate portion 71 protruding from the fixed plate portion 70 in the same direction as the holding member 64, and the protruding plate portion 71. And an engaging pin 72 fixed so as to protrude upward at the tip.

  As shown in FIGS. 2 and 5, the protruding plate portion 71 is located above the holding member 64, and the engaging pin 72 is located near the upper portion of the holding wall portion 65.

  As shown in FIG. 8, a long hole 73 is formed at the tip of the protruding plate portion 71, and a limit switch (the body is not shown) fixed to the lower surface of the protruding plate portion 71 in the long hole 73. ) Actuator 74 is disposed. The limit switch is used for operation control when the apparatus A is activated.

  As shown in FIGS. 1 and 5, the second heater suspension member 7 </ b> B is supported by an air cylinder 81 installed on the table 24. By driving the air cylinder 81, an engagement pin described later is provided. 86 can be moved between the upper position P1 of the pipe line 2a of the main pipe joint 2 mounted on the mounting table 25 and the retreat position P2 away from the upper position P1 and away from the main pipe joint 2. It has become.

  The air cylinder 81 has a cylinder portion 82 fixed on the table 24, and has a second heater suspension member 7 </ b> B via a plate 84 at the tip of a piston rod 83 protruding from the cylinder portion 82.

The second heater suspension member 7 </ b> B includes a holding plate 85 and an engagement pin 86 fixed so as to protrude upward at the tip end portion of the holding plate 85.
The plate 84 that supports the second heater suspension member 7 </ b> B is fixed to the tip of the piston rod 83 and is also fixed to the tip of a guide rod 87 arranged in parallel with the air cylinder 81. The guide rod 87 is supported by a guide block 88 fixed to the table 24 so as to be movable in the axial direction.

  In the second heater suspension member 7B, the engagement pin 86 is located above the mounting table 25 and the pipe line 2a of the main pipe joint 2 as shown in FIG. It is located in the center between 26.

  As shown in FIG. 5, the heater 6 hangs downward from the arm 90 installed on the first heater suspension member 7 </ b> A and the second heater suspension member 7 </ b> B and to the central portion in the length direction of the arm 90. A holding plate 91 fixed to the upper surface of the holding plate 91, a handle 92 fixed to the upper surface of the holding plate 91 so as to protrude upward, and a saddle joint heating plate 93 and a main pipe detachably fixed to the front and rear surfaces of the holding plate 91. A joint heating plate 94 is provided. The saddle joint heating plate 93 and the main pipe joint heating plate 94 heat and melt the inner surface 9 of the saddle joint 3 and the outer peripheral surface 10 of the main pipe joint 2 held by the moving body 50.

  The arm 90 is a plate-like body extending in the horizontal direction, and first and second long holes 95, 96 extending in the direction in which the plate-like body extends are formed. The engagement pin 72 is inserted into the first long hole 95 and the engagement pin 86 is inserted into the second long hole 96 when installed on the second heater suspension members 7A and 7B. It has become. At this time, the first and second long holes 95 and 96 are formed so as to be positioned on the direction of the axis 48 shown in FIG. 1 when the arm 90 is suspended.

  The saddle joint heating plate 93 heats and melts the inner surface 9 of the saddle portion 3 a of the saddle joint 3, and includes a heating surface 97 that curves and protrudes outward so as to be in close contact with the inner surface 9. Depending on the curvature, various types corresponding to the curvature are prepared.

  The main pipe joint heating plate 94 heats and melts the outer peripheral surface 10 of the large-diameter portion 2 c of the pipe line 2 a in the main pipe joint 2, and is a heating surface that is inwardly curved and recessed so as to be in close contact with the outer peripheral surface 10. 98, various types corresponding to the curvature of the outer peripheral surface 10 are prepared.

  The heater 6 has an inner surface 9 of the saddle joint 3 in which the saddle joint heating plate 93 is held by the holding member 64 of the moving body 50 when the arm 90 is installed between the first and second heater suspension members 7A and 7B. The main pipe joint heating plate 94 is opposed to the outer peripheral surface 10 of the main pipe joint 2 placed on the mounting table 25.

  Then, the heating surface 97 of the saddle joint heating plate 93 and the inner surface 9 of the saddle joint 3 are brought into close contact with each other, and the heating surface 98 of the main joint heating plate 94 and the outer peripheral surface 10 of the main joint 2 are brought into close contact with each other. The inner surface 9 and the outer peripheral surface 10 can be heated and melted by supplying power from a power source that does not heat the saddle joint heating plate 93 and the main joint heating plate 94 to generate heat.

  Note that the air cylinder 51 of the pressing portion 5 shown in FIG. 1, the air cylinder 81 connected to the second heater suspension member 7B, and the air cylinder 35 of the drive mechanism 31 shown in FIGS. 2 and 3 are activated and operated. Maintenance, stoppage of operation, and the like are controlled by a control unit (not shown). Further, the control unit is configured to display a pressing operation of the air cylinder 51 by the pressing unit 5 to a worker who operates the apparatus A by a lamp.

Next, a method for joining the saddle joint 3 to the main pipe joint 2 by the apparatus A will be described.
First, the main pipe joint 2 and the saddle joint 3 are set in the device A. In this case, the main pipe joint 2 and the saddle joint 3 have the same outer peripheral surface 10 of the large-diameter portion 2c of the pipe line 2a and the inner surface 9 of the saddle section 3a of the saddle joint 3 in the main pipe joint 2 shown in FIG. It has a curvature.

As for the set of the main pipe joint 2, first, as shown in FIG. 6, with the main pipe joint 2 facing the receiving portion 27, the large diameter portion 2 c of the pipe line 2 a is seated on the mounting table 25. Place on the plates 29, 29.
And while inserting the front-end | tip part of the rod 45 of the receiving part 27 in the pipe line 2b, the plate 46 is made to contact | abut to the opening end surface of the pipe line 2b, the operation member 49 is operated, and the rod 45 is fixed to the position. .

  Next, the operator operates the control unit to drive the air cylinder 35 that moves the fixing unit 26 shown in FIG. 3 up and down, lowers the piston rod 37, and the plate 30 and the fixing unit 26, as shown in FIG. 26 is lowered, the lower ends of the fixing portions 26 and 26 are brought into contact with the upper surface of the large diameter portion 2c, and the pipe line 2a is fixed on the mounting table 25.

  Then, the air cylinder 81 for moving the second heater suspension member 7B shown in FIG. 1 is driven by operating the control unit, and the piston rod 83 is advanced to move the second heater suspension member 7B as shown in FIG. The pin 86 is a central portion between the fixed portions 26 and 26 and reaches the upper position P1 of the large diameter portion 2c of the pipe line 2a.

  On the other hand, as shown in FIG. 5, the saddle joint 3 is set on the holding member 64 of the moving body 50. In this case, the pipe line 3b of the saddle joint 3 is inserted into the holding hole 66, and the outer surface 8 of the saddle portion 3a is brought into contact with the front surface 65a of the holding wall portion 65. The curvature of the outer surface 8 is related to the curvature of the inner surface 9. Therefore, the holding wall portion 65 does not need to be changed according to the saddle joint 3, and the outer surfaces 8 of the various saddle joints 3 can always be brought into close contact with the front surface 65a.

  Next, the heater 6 is installed between the first and second heater suspension members 7A and 7B. In this case, both ends of the arm 90 of the heater 6 are placed on the upper surfaces of the protruding plate portion 71 of the first heater suspension member 7A and the holding plate 85 of the second heater suspension member 7B, and the engagement pins 72, 86 are inserted into the first and second slots 95 and 96, respectively.

In this state, the heating surface 97 of the saddle joint heating plate 93 of the heater 6 faces the inner surface 9 of the saddle joint 3, and the heating surface 98 of the main pipe joint heating plate 94 faces the outer peripheral surface 10 of the main pipe joint 2.
When the arm 90 of the heater 6 is suspended from the projecting plate portion 71 of the first heater suspension member 7A, the actuator 74 located in the long hole 73 of the projecting plate portion 71 shown in FIG. Is pushed down by this, and thereby the limit switch of the control unit is switched, and the air cylinder 51 of the pressing unit 5 shown in FIG. 1 can be started.

  Here, the control unit is operated to drive the air cylinder 51 of the pressing unit 5 shown in FIG. 1 to move the moving body 50 in the direction of the main joint 2. The moving body 50 moves in the direction of the main joint 2 as the cylindrical bodies 63, 63 are guided by the guide rods 60, 60. At this time, as shown in FIG. 7, the first and second heater suspension members are moved. The heater 6 installed on 7A, 7B moves the engagement pin 72 in the first long hole 95 formed in the arm 90, thereby the first and second heater suspension members 7A shown in FIG. , 7B is moved in the horizontal direction while maintaining the posture when suspended by 7B, and the inner surface of the saddle joint 3 is brought close to the heating surface 97 of the saddle joint heating plate 93.

  When the inner surface 9 of the saddle joint 3 held by the holding wall portion 65 of the holding member 64 comes into contact with the heating surface 97 of the saddle joint heating plate 93 of the heater 6, the second elongated hole 96 formed in the arm 90. By moving the engagement pin 86 relatively inside, the heater 6 as a whole moves further in the horizontal direction toward the main joint 2 while maintaining the above posture, and the heating surface 98 of the main joint heating plate 94. Is brought into contact with the outer peripheral surface 10 of the main pipe joint 2.

  Here, the control unit determines the pressing force of the inner surface 9 of the saddle joint 3 against the heating surface 97 by the movement of the holding member 65 and the pressing force of the heating surface 98 of the main joint heating plate 94 against the outer peripheral surface 10 of the main joint 2. The detected output is compared with a preset pressing force to control the pressing force of the inner surface 9 and the pressing force of the heating surface 98, and the pressing force between the inner surface 9 and the heating surface 97 and the heating surface 98 The pressing force with the outer peripheral surface 10 is controlled to a value suitable for melting.

In this state, the control unit energizes the saddle joint heating plate 93 and the main joint heating plate 94 of the heater 6, and the saddle joint heating plate 93 and the main joint heating plate 94 generate heat, and the inner surface 9 of the saddle joint 3, and The outer peripheral surface 10 of the pipe line 2a of the main pipe joint 2 is melted.
The control unit manages the above-mentioned melting for a time, and displays this state with a lamp to the operator when the saddle joint 3 and the main pipe joint 2 can be fused.

  Here, the operator operates the control unit to stop the energization of the heater 6, and drives the air cylinder 51 shown in FIG. 1 in the opposite direction to the above, and as shown in FIG. Is pulled away from the main pipe joint 2, and then the saddle joint 3 is pulled away from the saddle joint heating plate 93. In this case, in the main joint heating plate 94, the engaging pin 72 moves in the first long hole 95 and engages with the end thereof, and pulls the entire heater 6 in the moving direction of the moving body 50. The heater 6 is separated from the main pipe joint 2. At this time, as the heater 6 moves away from the main pipe joint 2, the engagement pin 86 relatively moves in the second long hole 96 and engages with the end thereof.

Then, the heater 6 is pulled up above the first and second heater suspension members 7A and 7B, and is detached from the first and second heater suspension members 7A and 7B.
Thereafter, the control unit is operated to drive the air cylinder 51 shown in FIG. 1 to move the moving body 50 again in the direction of the main joint 2.

Here, as shown in FIG. 8, the holding member 64 of the moving body 50 makes the inner surface 9 of the saddle joint 3 held by the holding wall portion 65 abut against and presses the outer peripheral surface 10 of the main pipe joint 2.
At this time, since the inner surface 9 and the outer peripheral surface 10 are in a melted state, they are fused by being pressed together, and the main pipe joint 2 and the saddle joint 3 are joined by lowering the temperature. It will be.

  Note that the pressing force of the inner surface 9 against the outer peripheral surface 10 is controlled to a pressing force suitable for joining by the control unit as in the case of melting the inner surface 9 and the outer peripheral surface 10 described above.

  In this apparatus A, the main pipe joint 2 can be joined to the saddle joint 3 even when the curvature of the outer peripheral surface 10 of the large-diameter portion 2c is different (the saddle joint 3 has an inner surface 9 whose curvature is the outer peripheral surface). 10), when joining the main pipe joint 2 and the saddle joint 3, the saddle joint heating plate 93 of the heater 6 and the saddle joint heating plate 93 of the heater 6 and The main joint heating plate 94 is selected.

  When the lengths of the pipe lines 2b of the main pipe joint 2 shown in FIG. 2 are different, the positions of the rod 45 and the plate 46 of the receiving portion 27 are adjusted by operating the operation member 49, and the plate 46 is What is necessary is just to contact | abut to the end surface of the pipe line 2b in an appropriate position.

  As described above, according to the resin pipe fusion apparatus A, even when the diameter of the pipe path 2a of the main pipe joint 2 is different, the fixing portions 26 and 26 are advanced or retracted according to the curvature of the outer periphery. Thus, the pipe line 2a can be easily and reliably fixed on the mounting table 25. At this time, even when the protruding length of the pipe line 2b differs from the pipe line 2a, by adjusting the position of the plate 46 of the receiving portion 27, the plate 46 is moved to the opening end of the pipe line 2b at an appropriate position. It can be made to contact.

  Further, since the plate 46 of the receiving portion 27 is located on the opposite side of the pressing portion 5 with the main pipe joint 2 interposed therebetween, and the pressing portion 5 and the main pipe joint 2 are sandwiched on the axis 48, the pressing portion When the saddle joint 3 is pressed by 5, the main pipe joint 2 can be reliably received without being shaken, and as a result, the main pipe joint 2 and the saddle joint 3 can be reliably joined. .

  In addition, since the arm 90 of the heater 6 can be suspended freely on the first heater suspension member 7A and the second heater suspension member 7B provided in the pressing portion 5, the heater 6 can be easily installed and replaced. Thus, the apparatus A can be rationalized and the work efficiency can be improved. Further, the heater 6 provided with the main joint heating plate 94 that matches the curvature of the outer periphery of the main joint 2 and the saddle joint heating plate 93 that matches the curvature of the inner surface 9 of the saddle joint 3 can be freely selected and replaced. The equipment cost can be reduced by rationalizing the apparatus A.

  Further, the engagement pins 72 and 86 of the first and second heater suspension members 7A and 7B are slidably engaged with the first and second elongated holes 95 and 96, respectively. Since the heater 6 can be advanced and retracted with respect to the main pipe joint 2 by the advancing and retracting operation with respect to 2, there is an effect that the installation of the heater 6 and the operation of the heater 6 can be performed easily and simply.

  Even when the diameter of the pipe line 2a of the main pipe joint 2 is different, the outer peripheral surface 10 of the pipe line 2a can be appropriately melted by appropriately selecting the main pipe joint heating plate 94 of the heater 6. The configuration of the heater 6 can be rationalized.

  Even when the curvature of the inner surface 9 of the saddle joint 3 selected by the diameter of the pipe line 2a of the main pipe joint 2 varies, the saddle joint heating plate 93 of the heater 6 is appropriately selected to select the saddle joint. 3 can be appropriately melted, and the configuration of the heater 6 can be rationalized.

  Therefore, in this apparatus A, the main pipe joint 2 having various diameters and shapes can be appropriately gripped, and the main pipe joint 2 and the saddle joint 3 can be melted. It can be used as a general-purpose device capable of joining the main pipe joint 2 and the saddle joint 3, and as a result, the effect of rationalizing the equipment and suppressing the joining cost can be obtained.

  Further, since the moving body 50 is moved by the air cylinder 51 in the pressing portion 5, the main pipe joint 2 and the saddle joint 3 are melted by the heater 6 and the main pipe joint 2 and the saddle joint 3 are joined. Sometimes, each of these members can be moved and pressed with an appropriate pressing force, and the effect that both can be easily and reliably joined is obtained.

  In addition, in said embodiment, the case where the main pipe joint 2 provided with the pipe lines 2a and 2b, the saddle part 3a, and the saddle joint 3 provided with the pipe path 3b is joined as the object to which the apparatus A is joined. However, the main pipe joint 2 may be a main pipe joint of the pipe line 2a alone not provided with the pipe line 2b, the saddle joint 3 may be a joint provided with a female screw portion for connecting the branch pipe to the pipe line 3b, or the like. The present invention can be applied to the case where various saddle joints 3 having a saddle portion are joined to the main pipe joint of the pipe line 2a alone.

  Further, the fixing portion is composed of the two rods 26, 26, but is not limited thereto, and a configuration in which a plate member capable of appropriately pressing the main pipe joint 2 is attached to the lower ends of the fixing portions 26, 26. The fixing portion 26 only needs to be able to allow the second heater suspension member 7 </ b> B to enter and be pressed from above the main pipe joint 2.

  Further, the shape of the upper surface 29a of the seat plate 29, 29 of the mounting table 25 is not limited to the curved shape, and may be any shape as long as it can appropriately support the main pipe joint 2. For example, the apparatus A is viewed from the front. It may be formed in a V shape or the like when viewed from the direction.

Further, the second heater suspension member 7B is provided between the fixed portions 26 and 26, and may be configured to be movable up and down.
By setting it as such a structure, the structure of the apparatus A can be simplified and space saving can be achieved.

A resin pipe fusion apparatus 2 main pipe joint 3 saddle joint 4 clamp part 5 pressing part 6 heater 7A first heater suspension member 7B second heater suspension member 8 inner surface (joint surface)
DESCRIPTION OF SYMBOLS 10 Outer peripheral surface 25 Mounting base 26 Fixing part 27 Receiving part 51 Air cylinder (drive source)
72 engagement pin 86 engagement pin 90 arm 93 saddle heating plate 94 main joint heating plate 95 first slot 96 second slot

Claims (4)

A clamp part that holds the main pipe joint, a pressing part that horizontally presses the saddle joint joined to the main pipe joint toward the main pipe joint, and an outer peripheral surface of the main pipe joint and the saddle joint. In a resin pipe fusion apparatus provided with a heater that is disposed between surfaces and a heater that heats and melts the outer peripheral surface and the joint surface,
The clamp part is a mounting table on which the main pipe joint is mounted and supported from below.
A fixed portion that freely advances and retreats toward the mounting table and presses the main joint from above to fix it to the mounting table;
A receiving part that supports the main pipe joint from the opposite side of the pressing part by moving forward and backward in the horizontal direction toward the main pipe joint;
A resin pipe fusion apparatus characterized in that the main pipe joint is gripped in the vertical and horizontal directions. In the resin pipe fusing device according to claim 1,
A first heater suspension member is formed on the pressing portion,
A second heater suspension member which can be advanced or retracted relative to the upper position of the mounting table is installed;
The heater includes an arm extending in a horizontal direction,
The resin pipe fusion apparatus, wherein the heater is suspended so as to be erected by engaging the arm with the first heater suspension member and the second heater suspension member advanced to the upper position. . In the resin pipe fusing device according to claim 2,
The arm includes a first slot and a second slot extending in the extending direction of the arm,
An engagement pin provided on the first heater suspension member is slidably engaged with the first elongated hole,
An engagement pin provided on the second heater suspension member is slidably engaged with the second elongated hole. In the resin pipe fusing device according to any one of claims 1 to 3,
The heater includes a holding plate;
A curved surface for heating and melting the outer peripheral surface of the main joint, the main plate heating plate detachable from the holding plate;
A resin pipe fusion apparatus comprising: a saddle joint heating plate that has a curved surface for heating and melting the joint surface of the saddle joint and is detachable from the holding plate.

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