JPH0650031B2 - Pipe shutter manufacturing method and device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention is provided with a shutter body configured by connecting a plurality of pipes in parallel to each other with a link at a time of opening a shutter. Relates to a so-called pipe shutter manufacturing method and device in which the shutter body is wound up inside a storage box installed above the frontage, and when the shutter is closed, the shutter body is extended from the storage box and hung downward. is there.

[Prior Art] This type of conventional pipe shutter is, for example, the first
As shown in FIG. 5, a plurality of pipe fitting portions 11 ′ ... Arranged in parallel at predetermined intervals and these pipe fitting portions 11 ′ are arranged.
It was manufactured by using a jig 10 'provided with ring installation parts 12' provided on both sides of. That is,
The pipes P '... are fitted in the pipe fitting portions 11', and the distance between the center axes of the coupling holes L'f, L'r formed at both ends is set in the ring installation portion 12 '. Links L '... Equal to the distance between the pipe fitting portions 11' ... are arranged so that the coupling holes L'f, L'r respectively match the central axes of the pipes P '... After this jig 1
Since the core pipe C'is inserted through the connecting holes L'f, L'r of the link L'and the pipe P'from the side of 0 ', the shutter body of the desired pipe shutter is manufactured. is there.

[Problems to be Solved by the Invention] With the pipe shutter as described above, the inside of the pipe can be seen through the gap between the pipes even when the pipe shutter is closed. Demand is rapidly increasing in places such as show windows where it is desirable to show the interior even during non-business hours. However, in the conventional manufacturing method as described above, since the worker inserts the core pipe formed by arranging all the links and the pipes on the jig to connect them, the production efficiency is extremely poor, There has been a problem that it is impossible to cope with the rapid increase in demand as described above.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a method and an apparatus suitable for automatically manufacturing the pipe shutter as described above.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the method for manufacturing a pipe shutter according to the present invention sends links at least at two positions from the respective front end sides in a predetermined set line direction, and then, after these links. Send out the next link with the same shape so that the front end side of itself touches the end side, and fix the center of the front end side coupling hole of the next link and the center of the rear end side coupling hole of the previous link on the set line. On the other hand, a pipe is arranged between the link delivery positions on the set line, and then a core pipe is inserted through the coupling hole and the pipe of each link to connect these links to each other. Is released, then the newly sent out link is sent out as the next link, and the above procedure is repeated a predetermined number of times. ing.

Further, in order to achieve the above object, the pipe shutter manufacturing apparatus according to the present invention presses two links to be connected, which are sequentially supplied from the link stocker, by pressing the rear end of the subsequent link. At least two or more link feeding means for pushing out onto a predetermined set line in a state where the centers of the connecting holes formed at the rear end portion and the front end portion of the rear link are matched, and the connecting holes are provided on the set line. A link fixing means for fixing two links to be connected in a matched state, a pipe supply means for sequentially pushing the pipes stored in the pipe stocker between link fixing points on the set line, and a set line. Pipe holding means for holding the extruded pipe on the set line.

Another pipe shutter manufacturing apparatus according to the present invention has a link supplied from a link stocker up to a position where a center of a coupling hole formed at a front end portion is aligned with a predetermined set line by pressing a rear end portion of the link. The at least two or more link feeding means for pushing out, the link fixing means for fixing two links to be connected in the state where the coupling holes are matched, and the pipes stored in the pipe stocker are set on the set line. The pipe supply means for sequentially pushing out between the link fixing points on the line, the pipe holding means for holding the pipe pushed out on the set line on the set line, and the pipe previously connected to the link are engaged. It is possible, and when brought into this engaged state, in synchronization with the sending of the link by the link sending means, Only the distance between the center line of the front end side coupling hole and the rear end side coupling hole of one link,
And a pipe moving means capable of moving the pipe.

The pipe shutter manufacturing apparatus as described above may be provided with a core pipe supply means for inserting the core pipe into the coupling hole and the pipe held by the pipe holding means for the links fixed by the link fixing means. it can.

In each of the above-mentioned pipe shutter manufacturing apparatuses, the pipe supply means is such that the pipes whose axial direction is horizontal are arranged in a line in the vertical direction before the hopper-shaped pipe stocker outlet and are discharged one by one from the pipe stocker outlet. In addition, the discharged pipes can be sequentially pushed out toward the set line side, and the pipe supply means is provided above the portion where the pipes in the pipe stocker are arranged in a line, A pipe entanglement preventing means for separating the pipes in the pipe stocker can be additionally provided in synchronization with the pushing out of the discharged pipes.

[Operation] According to the pipe shutter manufacturing method of the first invention, the pipe shutter is manufactured by repeating the work of inserting the core pipe into the link and the pipe set on one set line.

According to the pipe shutter manufacturing apparatus of the second invention, 2
At the above points, the two links to be connected are fixed with the center of the connecting hole on the connecting side aligned with the set line, and the pipe is held between these link sets. Therefore, by supplying the core pipe from the side to this set line, the link and the pipe set on the set line are connected. In addition, by pressing the end of the new link supplied from the link stocker, this new link and one of the links inserted through the core pipe earlier are set as a set, and each link is It is possible to send out onto the set line in a state where the connecting side coupling holes of are matched.

As in the third invention, when the pipe shutter manufacturing apparatus as described above includes the pipe moving means, when the pipe is already connected to one of the one set of links previously sent by the link sending means. The link connected to the pipe is moved by a predetermined stroke by the pipe moving means, and the core pipe is set at a fixed position.

In each pipe shutter manufacturing device as described above,
When the core pipe supply means is provided as in the fourth aspect of the invention, continuous manufacturing work can be performed by operating the link delivery means each time the supply of the core pipe is completed.

Further, when the pipe entanglement prevention means as in the fifth aspect is provided, when one pipe arranged in a line in the pipe stocker is discharged from its outlet, it is not in a horizontal state above this one line portion. Therefore, the pipes intertwined with each other can be separated, and the next pipe surely moves to the uppermost end of the one row portion.

[Embodiment] In the pipe shutter manufacturing apparatus shown below, a link L as shown in FIG. 14 is used as a link for connecting pipes.
Is used. In this link L, a coupling portion Lf having a coupling hole F through which a pipe described later can be inserted is formed in the center of the tip end side, and another link L of the same shape is formed on the rear end side.
The connecting portion Lr is formed into a bifurcated shape into which the connecting portion Lf can be fitted and has a connecting hole R of the same diameter that can be arranged coaxially with the connecting hole F. The outer peripheral shape of these connecting portions Lf and Lr forms a part of a cylindrical shape. Also, this link L
Has a shape in which the thickness in the height direction gradually decreases from the connecting portions Lf, Lr at both ends toward the central portion.

In FIG. 1 and FIG. 2, 1 is a link sending means,
Reference numeral 2 is a link fixing means, 3 is a pipe supply means, and 4 is a pipe holding means.

The link sending-out means 1 sequentially sends out the links L stocked in the link stocker 11 as shown in FIG. 14 to the set line 1 side of this apparatus by the link pushing mechanism 12, and this set line l Arbitrary number (only two are shown in the figure) with an appropriate interval on a line parallel to
It is provided. The link stocker 11 is the link L
Is capable of being stacked vertically in a state where the connecting portion Lf is arranged on the front side. As shown in FIG. 3, a U-shaped guide for guiding both front side surfaces of the link L is formed. It is provided with a first guide member 111 and a rod-shaped second guide member 112 having a square cross-section that is fitted between the two forks of the connecting portion Lr, and these first and second guide members 111, 112 are provided with inner portions at the lower end portions thereof. The mounting member 113 in the shape of a rectangular tube, which is fixed in the state of being arranged in the above, is fixed, and this is fixed to the plate-shaped base portion 5. In addition, at the lower end of the mounting member 113, the link L can pass between the lower surface of the base 5 which is the link moving surface, that is, the opening surface height is higher than the thickness of the coupling portions Lf and Lr in the height direction. A block passing gate 114 having a slightly higher height is formed. The length between the opening on the front side of the block passage gate 114 and the set line 1 is set longer than the total length of the link L. The link pushing mechanism 12 is attached to the piston rod 121a and a link pushing air cylinder 121 having a piston rod 121a (see FIG. 2) arranged behind the block passage gate 114 and expanding and contracting in the front-rear direction. And an extrusion block 122. The push-out block 122 has a rectangular cross-section capable of passing through the block passage gate 114, and its tip is fitted into the fork of the rear end side joint portion Lr of the link L as shown in FIG. That is, it is formed in a shape similar to the coupling portion Lf. This extrusion block 122 is provided with a piston rod 121.
When a is retracted, its tip is the link stocker 11
As shown in FIG. 2, the block passage gate is located at the rear side of the piston rod 121a by extending the piston rod 121a.
It is designed to be inserted into 114, and at the time of this insertion, the lowermost link L in the link stocker 11 that has fallen into this block passage gate 114 is pushed out to the set line 1 side. The extension amount of the piston rod 121a is set so that the center of the connecting hole F of the front end side connecting portion Lf of the link L extruded by the block 122 matches the set line 1 as shown in FIG. .

The link fixing means 2 is provided corresponding to the link feeding means 1, and is fixed to the piston rod 21a and the link fixing air cylinder 21 having the piston rod 21a which vertically expands and contracts above the set line l. A link fixing block 22 is provided. Air cylinder
21 is fixed to the base portion 5 via a mounting member 23.
As shown in FIG. 5, the link abutment surface 22a of the block 22 is formed in a V-shaped cross section in order to securely fix the connecting portions Lf and Lr whose outer peripheral shape forms a part of a cylindrical shape. The block 22 is attached to the piston rod 21a so that the apex of the V-shape is located right above the set line l.
The block 22 is preferably made of a soft resin material such as nylon so as not to damage the link L. By extending the piston rod 21a, the link moving surface is indicated by the chain line in FIG. Fix the link L by sandwiching it with 5a. That is, the coupling portion Lf, Lr
Is firmly fixed on the set line l by supporting three points respectively by the block 22 and the link moving surface. Reference numeral 24 is a link positioning plate attached to the front surface of the block 22 for blocking the lateral movement of the link L.

The pipe supply means 3 comprises a pipe stocker 31 for stocking a plurality of pipes, and a pipe pushing mechanism 32 for sequentially pushing the pipes discharged one by one from the outlet of the pipe stocker 31 to the set line 1 side. Pipe stocker
Reference numeral 31 includes a pair of stocker members 31a, 31a fixed to the respective base portions 5, 5 on the side surfaces of the adjacent link stockers 11, 11 facing each other. These stocker members 31a, 31a are formed into a hopper shape and a U-shaped cross section when viewed from the side, and have a bilaterally symmetrical shape with U-shaped recesses facing each other. The lower side of the hopper-shaped stocker members 31a, 31a is formed so that the pipes P whose axial direction is horizontal are arranged in a line in the vertical direction as shown in FIG. Further, pipe outlets 31aa, 31aa through which only one horizontal pipe P can pass are formed at the front lower ends of the stocker members 31a, 31a, while the rear lower ends are provided with the pipe outlets 31aa, 31aa. Pipe exit 31
Block insertion openings 31ab and 31ab are formed in the portions corresponding to aa and 31aa. The pipe push-out mechanism 32 includes a pipe push-out air cylinder 321 provided with piston rods 321a that are respectively arranged behind the stocker members 31a, 31a and extend and retract in the front-rear direction, and a pipe push-out mechanism fixed to the tip of the piston rod 321a. Block 322.
The pushing block 322 is one in which the piston rod 321a is extended to penetrate the block insertion ports 31ab, 31ab and the pipe outlets 31aa, 31aa of the pipe stocker 31 and the tip thereof protrudes to the front side of the pipe stocker 31. As shown in FIG. 6, the extension amount of the piston rod 321a is set so that the pipe P at the lowermost end of the one-row arrangement portion of the pipe stocker 31 is pushed out onto the set line l.

The pipe holding means 4 is fixed to the front surface of the pipe stocker 31 and has a piston rod 41a extending and contracting in the vertical direction, and a pipe holding air cylinder 41, and the piston rod 41a.
The pipe holding block 42 and the pipe pushing block 322 which are connected to each other. As shown in FIG. 7, the pipe holding block 42 is formed in an L shape by a hanging portion 42a on the front end side and a horizontal portion 42b extending rearward from the upper end of the hanging portion 42a. The piston rod 41a is connected to. And block 42
7 is a pipe holding structure as shown in FIG. 7 between the piston block 41a and the pushing block 322 for pushing the pipe P onto the set line 1 by extending and moving the piston rod 41a and the surface of the base 5. The working space 6 is formed. In the pipe holding space 6, the center line of the pipe P is
The pipe P is formed to have a size so as to restrain the pipe P so as to match the center lines of the coupling holes Lf and Lr of the link L fixed on the set line 1 by the link fixing means 2.
In consideration of the molding error of the link L and the pipe P, the pipe P
Are formed so as to allow a slight radial movement.

As shown in FIG. 2, on the base portion 5, a link L in which the front end side coupling portion Lf is fixed by the link fixing means 2 is provided.
The link / pipe guide 7 that fits into the lower curved portion of the link L is fixed to the setting portion of. That is, the link / pipe guide 7 prevents the link L sent by the link sending means 1 from overshooting from a predetermined set position, and guides both sides of the pipe P supplied by the pipe supply means 3. The lever pipe is prevented from shifting in the axial direction.

According to the pipe shutter manufacturing apparatus having the link sending means 1, the link fixing means 2, the pipe supply means 3, and the pipe holding means 4 configured as described above, the pipe shutter can be manufactured by the following procedure. it can.

First, each link sending means 1 ... Sends two links L out of the link stocker 11 continuously. That is, when the air cylinder 121 of the link pushing mechanism 12 is operated to extend the piston rod 121a, the pushing block 22 penetrates the block passing gate 114 of the link stocker 11 and is located at the lowest end in the link stocker 11. The link L-1 is pushed to the position where the connecting portion Lf-1 reaches the set line l. After this, the piston rod 121a is once retracted to push out the block 122.
When exiting from Passage Gate 114, Link Stocker 1
The second link L-2 located at the lowermost end in 1 falls to a position corresponding to the passage gate 114. Therefore, when the piston rod 121a is extended again here, the second block L-2 is moved to the link stocker 1 by the pushing block 122.
1 Pushed out. At this time, as shown in FIG. 8, the tip of the pushing block 122 is fitted into the rear end side coupling portion Lr-2 of the link L-2 to push out the link L-2, thereby Link L-2 of the first link L-1 accurately moves on the same locus, and with this movement, the front end side coupling portion Lf-2 is moved to the rear end side coupling portion Lr-1 of the link L-1, The coupling holes F-2 and R-1 are fitted with their center lines aligned. Then, the link L-2 is further pushed by the pushing block 122 after the fitting, so that the center lines of the coupling holes F-2 and R-1 are moved until they are located on the set line l.

As described above, the two link L-1 and L-2 are arranged on the set line 1 by the respective link sending-out means 1 in a state in which the mutual coupling holes R-1 and F-2 are aligned with each other. Then, each link fixing means 2 is then actuated to fix these two links L-1 and L-2 in the arrangement position. That is, when the link fixing air cylinder 21 is operated when the piston rod 121a is retracted after the second operation of the air cylinder 121 is completed, the piston rod 21
The a extends and the link fixing block 22 descends, and the connecting portion Lr-1 and the connecting portion Lf-2 are fixed between the block 22 and the upper surface of the base portion 5.

After the links L-1 and L-2 are thus fixed, the pipe supply means 3 is operated to supply the pipe P-1 onto the set line l. That is, by operating the pipe pushing air cylinder 321 and extending the piston rod 321a, the papistor rod 321a is extended, whereby the pipe P-1 at the lowermost end of the pipes arranged in a line in the pipe stocker 31 is The push block 322 pushes the line toward the set line 1. At this time, the pipe P-1 is guided by the link / pipe guide 7 and pushed out without being displaced in the axial direction, and between the links L-1, L-2 already fixed on the set line l,
The center lines are arranged on the set line l so as to be substantially aligned with each other. That is, by this, the connecting holes of the connecting portions Lr-1 and Lf-2 of the links L-1 and L-2 and the center line of the pipe P-1 are substantially aligned with each other.

At this point, the air cylinder 321 temporarily stops operating, and the pushing block 322 is held at the pushing position. Then, the pipe holding means 4 is operated here to hold the pipe P-1 on the set line l. That is, when the pipe-holding air cylinder 41 is operated to extend the piston rod 41a, the pipe-holding block 42 descends and the pushing-out block 322
At the same time, a pipe holding space 6 as shown in FIG. 7 is formed, and the pipe P-1 is held therein, and the center line thereof is set in a slightly movable state as shown in FIG. Set on line l.

In the apparatus having the above-described structure, the pipe P is held on the set line 1 in advance by the pipe holding block.
It is also possible to lower the pipe 42 and then push out the pipe P by the pushing block 322.

As described above, at least two links L-1, L-2 respectively supplied by the link sending means 1 ...
When the pipe P-1 supplied from the pipe supply means 3 provided between the link sending means 1 ... Is set on the set line l, as shown by the arrow in FIG.
The connecting pipes Lr-1, Lf-2 and the pipe P-1 are connected to the core pipe C-.
1 is inserted, the links L-1 and L-2 are inserted.
And the pipe P-1 are connected.

The core pipe C-1 is connected to the link L- by the link fixing means 2.
1, L-2 are fixed and the pipe holding means 4 holds the pipe P-1 to provide a core pipe supply means that operates after the pipe holding means 4, thereby automatically connecting the joints Lr-1, Lf-2 and the pipe P-. 1 can be inserted. This core pipe supply means includes a mechanism for sequentially arranging one core pipe at a predetermined position where the center line thereof coincides with the center lines of the coupling portions Lr-1, Lf-2, and the pistons of the air cylinders 21, 321, 41. The rod 21a, 321a, 41a is provided with a mechanism for moving the core pipe at the predetermined position in the axial direction by a predetermined distance when the rods 21a, 321a, 41a are all stretched to the predetermined length as described above.

Next, after the links L-1, L-2 and the pipe P-1 are connected by the core pipe C-1, the air cylinders 21, 321, 41 are connected.
All the piston rods 21a, 321a, 41a of the above are retracted to release the restraint of the links L-1, L-2 to the pipe P-1. As a result, the links L-1, L-2 and the pipe P
-1 is in a movable state.

Next, the link sending means 1 ... Is operated again. Here, when the link sending-out means 1 ... Is operated, the next link L-3 is sent out of the link stocker 11 in the same manner as when the link L-2 is sent out, as shown in FIG. The connecting portion Lf-3 of the link L-3 and the connecting portion Lr-2 of the link L-2 are arranged on the set line 1 in a state of being fitted to each other. Therefore, by activating the link fixing means 2 here, the connecting portion Lr-
2, Lf-3 are fixed on the base 5 with their center lines aligned with each other. Then, by subsequently operating the pipe supply means 3 and the pipe holding means 4, each connecting portion Lr-
2, a new pipe P-2 is placed between the fitting parts of Lf-3,
When the core pipe C-2 is inserted through the connecting portions Lr-2, Lf-3 and the pipe P-2, the links L-2, L-3 and the pipe P-2 are connected.

By repeating the above procedure a predetermined number of times, the body of the pipe shutter in which the desired number of stages of pipes are connected by the link is manufactured.

By the way, in the manufacturing process of the above-mentioned pipe shutter, the front end side connecting portion of the link L newly sent out with respect to the rear end side connecting portion Lr of the link L previously sent out.
When Lf is fitted on the set line l, the pipe P already in communication with the link L is moved by a separate moving means in synchronization with the sending of the newly sent link L. Is preferred. By doing so, the link sending means 1 ... Can send a new link without receiving the load of the already connected link or pipe, and the pipe that has been connected to the link L is a new pipe. Is set on the set line l, it is accurately set at a position separated by a predetermined stroke with reference to the set line l. This means that at the new set position, the core pipe can be subjected to other processes, for example, a process of attaching a cap to the end of the core pipe. FIG. 11 is a diagram showing a specific structure of the pipe moving means 8. The pipe moving means 8 shown here is provided at an intermediate portion of each of the link sending means 1 in the direction of the set line l, and has a moving mechanism 81 and a pipe holding mechanism attached to the moving mechanism 81.
It consists of 82 and. The moving mechanism 81, as shown in FIG.
An air cylinder 811 which is provided below a shutter moving base 10 which is formed substantially flush with the surface of the base 5, and whose base end is rotatably attached to a mounting portion 10a integral with the moving base 10. The air cylinder 811 includes a crank mechanism 812 having one end connected to a piston rod 811a, and the other end of the crank mechanism 812 includes a rack and pinion 813a having a rotation shaft of a pinion 813a fixedly connected thereto. That is, the moving mechanism 81 operates the air cylinder 811 to operate the piston rod 8
By extending and contracting 11a, the pinion 813a is rotated via the crank mechanism 812, and thus the rack 813b is moved in the direction orthogonal to the set line 1 (the arrow AB direction in FIG. 11). . On the other hand, the pipe holding mechanism 82 is rotatably connected to a pair of air cylinders 821, 822 attached to the rack 813b via a mounting member 825, and the tips of these piston rods 821a, 822a, respectively, and is normally The holding line 823 and 824 are arranged below the standby position line l1 which is a predetermined stroke away from the set line 1 toward the front side. The claws 823,824 are
As shown in FIGS. 12A and 12B, the bar-shaped main bodies 823a and 824a are both formed in a substantially T-shape having protrusions 823b and 824b in the longitudinal center thereof. And these claws 82
3,824 are fulcrums 823c and 824c provided on the protrusions 823b and 824b in a state where they are arranged symmetrically to each other when viewed from the side.
Are rotatably attached to the mounting member 825 on the same axis. The piston rods 821a, 822a are connected to one end of the bar-shaped bodies 823a, 824a in the longitudinal direction, and the bar-shaped bodies 823a, 824a are erected by adjusting the protruding lengths of the piston rods 821a, 822a. When this is done, the distance between the other longitudinal ends is made equal to the outer diameter of the pipe.

The pipe moving means 8 configured as described above always positions the fulcrums 823c and 824c of the holding claws 823 and 824 immediately below the standby position line l1, moves the holding claws 823 and 824 backwards the piston rod 821a, and moves the piston rod 822a. As shown in FIG. 12B, the shutter is moved under the surface of the shutter moving base 10 by being stretched. Then, in the manufacturing process as described above, when the links and the pipes are connected on the set line 1 by inserting the core pipe, first, the air cylinders 821 and 822 of the pipe holding means 82 are operated to extend the piston rod 821a. The piston rod 822a is retracted. As a result, the holding claws 823,82
4 rotates about fulcrums 823c and 824c, and as shown in FIG. 12A or FIG. 2, holds a pipe on the standby position line 11 between the other longitudinal ends of the bar-shaped bodies 823a and 824a. Next, at the same time that a new link is sent out of the link stocker 11 by the link sending-out means 1 ...
Or, before the new link is sent out, the moving mechanism 81
The air cylinder 811 is operated to extend the pistol rod 811a by a predetermined amount, thereby rotating the pinion 813a in the arrow X direction as shown in FIG. 11, thereby moving the rack 813b away from the standby position line l1 (see FIG. Middle arrow A direction)
To a predetermined amount. In this way, by moving the rack 813b, the air cylinders 821, 822 attached to the rack 813b and the holding claws 823, 824 connected to the piston rods 821a, 822a of the rack 813b also move in the same direction. The pipe held by the holding claws 823 and 824 also moves a predetermined distance from the standby position line 11 to the second set line 12 (see FIG. 2). Needless to say, the predetermined moving distance of the pipe, that is, the moving distance of the rack 813b is set equal to the distance between the center lines of the coupling holes F and R at both ends of the link L. Therefore, before this movement, the set line l
In the link having the leading end side coupling portion Lf set thereon, the rear end side coupling portion Lr is set on the set line 1 by this movement after the core pipe is inserted. When the rack 813b has moved by a predetermined amount in this way, the piston rod 821a is retracted and the piston rod 822a is extended, so that the holding claws 823 and 824 are again below the surface of the shutter moving base 10 as shown in FIG. 12B. Immerse yourself and release your grip on the pipe. Therefore, the air cylinder 81
When 1 is operated to retract the piston rod 811a, the holding claws 823 and 824 return to their original positions below the standby position line l1 as the rack 813b moves. This return is performed until the core pipe is inserted into each link and pipe set on the set line l next.

Next, 9 shown in FIG. 1 shows a pipe entanglement prevention means attached to the pipe supply means 3. The pipe entanglement prevention means 9 is arranged such that when the pipe at the lowermost end of the pipes arranged in a line in the pipe stocker 31 is pushed out of the pipe stocker 31 by the pipe pushing mechanism 32, the uppermost end of the one-row arrangement portion is formed. In order to ensure the introduction of the next pipe, the stockers are mounted on the rear surfaces of the stocker members 31a, 31a respectively (however, in FIG. 1, the pipe entanglement prevention mounted on one stocker member 31a is prevented. Only means 9 are shown). This pipe entanglement prevention means 9
Includes a claw driving air cylinder 91 in which the piston rod 91a expands and contracts along the rear inclined portion of the stocker member 31a, and a pipe separating claw 91b whose one end is rotatably connected to the tip of the piston rod 91a. . This pipe sorting claw 91b is
The central portion is bent in a V shape, and this bent portion is rotatably attached to a support member 91ba fixed to the rear surface of the stocker member 31a. The other end of the claw 91b is bent toward the pipe group stocked in the pipe stocker 31 near the lower end of the rear inclined portion of the stocker member 31a, that is, near the upper portion of the row of pipes arranged in the stocker member 31a. As shown in the figure, it is held at a position where it does not come into contact with this pipe group. Then, the piston rod 91 of the air cylinder 91
When a is extended, the other end of the claw 91b enters the pipe group stocked in the pipe stocker 31 while rotating around the attachment portion to the support member 91ba, as shown in FIG. 13B. As a result, the pipes that are entangled with each other above the one-row arrangement portion are separated. Therefore, even if some pipes are entangled above the one-row arrangement portion and the next pipe cannot enter the uppermost end of the one-row portion, such a state is maintained.
The movement of 91b surely eliminates the problem that the pipe stocker 31 does not stop supplying the pipe even though the pipe stocker 31 still has the pipe. As such a pipe entanglement prevention means, it is also possible to adopt a method of vibrating the pipe stocker at the same timing as when the claw 91b separates the pipe group.

In the method of manufacturing the pipe shutter as described above, the operation timing may be set by a timer, or the operation timing may be determined according to the movement of each link, pipe or core pipe by using a limit switch or the like. Good.

Further, in the pipe shutter manufacturing apparatus as shown in FIG. 1 or FIG. 2, the pipe feeding means 3 is adjacent to each other on the opposite side of the one link sending means 1 and the link fixing means 2 on the base 5. By manufacturing the other pipe supply means 3'with the stocker 31a ', the pipe pushing mechanism (not shown) and the pipe holding means 4'as one set, and arranging them on the rail 51,
Even if the length of the pipe is different, the position of the base 5
All you have to do is slide it along 51.

[Effect of the invention] According to claim 1, the link and the pipe are set one after another on one set line, and the core pipe can be inserted therethrough. The process of inserting the core pipe to be moved in the axial direction is performed at one place, and the pipe shutter can be assembled in a small space and automation can be facilitated.

According to claim 2, the two links are fixed at least at two positions on one set line in a state where the centers of the coupling holes are matched with each other, and a pipe is provided between the link fixing positions on the set line. Since the core pipe can be held, the work of inserting the core pipe can be performed at one place, and the work efficiency is improved.

According to the third aspect, since the core pipe inserted into the pipe previously connected to the link is set at a fixed position, there is an advantage that it is convenient to perform the next processing on the core pipe. Further, since the pipe connected to the link is moved by the link moving means, the link sending means is
There is an effect that a new link can be sent out more smoothly without receiving a load of a link or a pipe that has already been connected.

According to the fourth aspect, since the core pipe can be automatically supplied to the link and the pipe set on the set line, the link and the pipe are continuously connected without any human work. The manufacturing efficiency can be improved.

According to the fifth aspect, the pipe supply means can always reliably supply the pipe onto the set line, and the core pipe is prevented from being supplied without the pipe being set.

[Brief description of drawings]

FIG. 1 is a perspective view of a pipe shutter manufacturing apparatus, FIG. 2 is a perspective view showing the same usage state, FIG. 3 is a cross-sectional view of a link stocker, and FIG. 4 is an explanatory view showing the operation of a link pushing block. FIG. 5 is a side view showing a link fixing block, FIG. 6 is a view showing a pipe pushed out, FIG. 7 is an enlarged view showing a pipe held, and FIG.
FIG. 9 is an enlarged side view showing the sending out of a link, FIG. 9 is a plan view showing the inserted state of a core pipe, FIG. 10 is a schematic side view of a pipe shutter manufacturing apparatus showing the positional relationship of pipe moving means, and FIG. Is an enlarged perspective view of the pipe moving means, FIGS. 12A and 12B are schematic side views for explaining the operation of the pipe holding mechanism, and FIGS. 13A and 13B are explanatory views showing the operation of the pipe entanglement preventing means. FIG. 15 is a perspective view of a link, and FIG. 15 is a perspective view showing a conventional manufacturing method. DESCRIPTION OF SYMBOLS 1 ... Link sending-out means 2 ... Link fixing means, 3 ... Pipe supply means 4 ... Pipe holding means, 8 ... Pipe moving means 9 ... Pipe entanglement prevention means

Claims (5)

[Claims] 1. At least two links are sent out from respective front end sides in a predetermined set line direction, and next next links having the same shape are sent out so that their front end sides come into contact with the rear end sides of these links. The front end side coupling hole of the link and the center of the rear end side coupling hole of the previous link are aligned and fixed on the set line, and on the other hand, a pipe is arranged between the link delivery positions on the set line. , The core pipe is inserted into the coupling hole and the pipe of each of the links to connect the links to the pipe, then the fixation to each of the links is released, and then the newly sent link is sent as the next link A method for manufacturing a pipe shutter, characterized in that the above procedure is repeated a predetermined number of times. 2. Two links to be connected, which are sequentially supplied from a link stocker, are formed at the rear end of the front link and the front end of the rear link by pressing the rear end of the rear link. And at least two link feeding means for pushing out onto a predetermined set line with the centers of the connecting holes aligned, and two links to be connected on the set line with the connecting holes aligned. Link fixing means, a pipe supply means for sequentially pushing the pipes stored in the pipe stocker between link fixing points on the set line, and the pipe pushed on the set line for holding on the set line An apparatus for manufacturing a pipe shutter, comprising: a pipe holding unit. 3. A link supplied from a link stocker,
At least two or more link sending-out means for pushing out the end portion to push the center of the coupling hole formed at the tip portion to a position where it is aligned with a predetermined set line, and aligning the coupling hole with the set line. Link fixing means for fixing the two links to be connected together, pipe feeding means for sequentially pushing the pipes stored in the pipe stocker between the link fixing points on the set line, and the pipe feeding means for pushing the pipes on the set line. The pipe holding means for holding the pipe on the set line and the pipe previously connected to the link can be engaged, and when in this engaged state, the link sending means sends out the link. In synchronism with, the distance between the center line of the front end side coupling hole and the rear end side coupling hole of one link,
A pipe shutter manufacturing device, comprising: a pipe moving unit capable of moving the pipe. 4. A core pipe supply means for inserting the core pipe into the connecting hole of the link and the pipe when the link is fixed by the link fixing means and the pipe is held by the pipe holding means. Item 2. A manufacturing apparatus for a pipe shutter according to 2 or 3. 5. The pipe supply means arranges the pipes whose axial direction is horizontal in a vertical direction in front of the hopper-shaped pipe stocker outlet and discharges the pipes one by one from the pipe stocker outlet. Pipes are sequentially pushed to the set line side, and pipe entanglement prevention means is provided to separate the pipes in the pipe stocker above the portion where the pipes in the pipe stocker are arranged in a line. The pipe shutter manufacturing apparatus according to claim 2, 3, or 4.