JPH0536178B2 - - Google Patents

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a flange material fitting device used in manufacturing separators for regulating the spacing between concrete forms, that is, a device for fitting separator wires at the ends of wire rods for separators. This invention relates to a device for automatically fitting a cup-shaped flange member to a portion.

(Prior art and its problems) Conventionally, after a screw shaft is formed at the end of a separator wire by rolling, a flange material is manually screwed onto the screw shaft. Therefore, it required a great deal of labor and time to assemble the wire rod and the flange material, resulting in high costs.

In order to solve this problem, a collar material is automatically fitted to the end of the separator wire during the process of conveying the separator wire in parallel to the rolling device that rolls the screw shaft. It would be good if it could be done, but such a device was of course not known in the past.

Similar devices include, for example, Japanese Patent Application Laid-open No. 50-19067.
A device disclosed in the above-mentioned publication is known, but in this conventional device, flat plate-like flange materials (washers) are stacked and fed in the direction of the shaft hole, and the flange material at the tip inserts the end of the wire rod into the shaft hole. When the parts engage and are pulled out by the wire, they are pulled diagonally inward along the surface of the following flange material, crossing the direction of wire movement, and as the wire moves, the flange material becomes Since it is configured to fit and move in the axial direction, it cannot be used as a device for fitting cup-shaped flange members, which fit into each other when stacked in the direction of the shaft hole, into the separator.

Moreover, when the wire rod pulls out the flange material due to the engagement between the flange material shaft hole and the wire end, the flange material must be pulled out diagonally inward, crossing the direction of movement of the wire rod. The frictional resistance between the Therefore, since it is not possible to increase the intersection angle between the moving direction of the flange material and the moving direction of the wire rod, the angle of inclination of the flange material when the end of the wire rod engages with the shaft hole of the flange material becomes small, and the wire rod side The apparent size (width) of the shaft hole in the flange material becomes very small, so if the positioning accuracy of the wire end and the positioning accuracy of the shaft hole in the flange material are not sufficiently high, the wire rod will not fit into the shaft hole in the flange material. It is also not possible to reliably engage the ends.

(Means for Solving the Problems) The present invention has been made in order to solve the conventional problems as described above, and the features of the device of the present invention are indicated by reference numerals in parentheses in the embodiments described below. As an appendix, the flange material fitting device for a separator manufacturing machine of the present invention has a side part of a wire rod conveying device 4 that supports and conveys separator wire rods 38 in parallel at regular intervals while supporting them approximately horizontally. , cup-shaped guard material 44
A flange material moving path 47 is formed to guide the flange material so as to be movable in parallel to the wire conveying direction. A wire rod guide rail 43 is provided to guide the wire rod to a position approximately at the center of the width of the moving path 47, and the outer guide surface 47a of the flange material moving path 47 is
A recessed space 48 for positioning the flange material that protrudes diagonally outward and upward from the flange material moving path 47 is provided between the starting end of the wire rod guide rail 43 and the recessed space 48. A flange material feeding guide 41 for vertically dropping a cup-shaped flange material 44 from above with its shaft hole 45 oriented horizontally is disposed inside, and the recessed space 48 for flange material positioning is a wire rod guide. The wire end 38a moving in contact with the rail 43 is caught in the shaft hole 45 of the cup-shaped flange material 44, and a part of the peripheral edge of the flange material 44 is inward from the starting end of the outer guide surface 47a. It is characterized in that the cup-shaped flange member 44 is positioned diagonally with respect to the wire transport direction at the protruding position.

(Function of the invention) In the apparatus of the present invention, the end portion 38a of the wire 38 conveyed by the wire conveying device 4
engages with the shaft hole 45 of the cup-shaped flange material 44 that is supplied to a fixed position spanning the inside of the flange material movement path 47 and the recessed space 48 by the flange material feeding guide 41. As the wire rod 38 moves, the flange material 44 is pulled out from within the recessed space 48, but at this time, a part of the peripheral edge of the cup-shaped flange material 44 moves outside the flange material movement path 47. It protrudes into the flange material moving path 47 from the starting end of the guide surface 47a.

The outer guide surface 47a is shifted outward from the engagement point between the wire rod end 38a and the flange material shaft hole 45, so that the wire rod end 38a engages with the shaft hole 45 and is pushed in the wire transport direction. Accordingly, the tsuba material 44
A rotational force is applied to the outer guide surface 47a using the point of contact with the starting end of the outer guide surface 47a as a fulcrum. Therefore, the cup-shaped flange material 44 rotates in the direction of the flange material movement path (wire rod movement direction) while being pulled out from the recessed space 48, and the shaft hole 45 of the flange material fits into the wire end 38a. It turns out. That is, the shaft hole 45 and the wire end 38a are completely fitted together with almost no relative sliding movement in the axial direction between the collar material shaft hole 45 and the wire rod 38.

As described above, the cup-shaped flange material 44 is attached to the wire end 38a.
Therefore, the inclination angle of the collar material 44 in the standby position with respect to the moving direction of the wire rod 38 is increased, thereby increasing the apparent width of the collar material shaft hole 45 when viewed from the wire rod 38 side. Thus, even if the end positioning accuracy of the wire rod 38 and the positioning accuracy of the collar material 44 are somewhat low, the wire end portion 38a can be reliably engaged with the collar material shaft hole 45.

The cup-shaped flange material 44 is inserted into the recessed space 48 by the flange material feeding guide 41 through its shaft hole 45.
Since the cup-shaped flange materials 44 are dropped vertically so that they are oriented horizontally, even when the cup-shaped flange materials 44 are waiting in a vertically stacked state within the flange material feeding guide 41, the cup-shaped flange materials 44 fit into each other. Therefore, it will not become impossible to pull out the collar material one by one using the wire end portion 38a.

(Example) An example of the present invention will be described below based on the attached illustrative drawings.

In FIGS. 1 and 2, a separator wire 2 fed from a wire coil is fed into an automatic size cutting device 3, cut into a predetermined length, and dropped onto a conveying device 4 below. This conveying device 4 conveys the wire rod cut into dimensions in a horizontal direction perpendicular to the feeding direction of the wire rod 2 to the automatic dimension cutting device 3. One or more sets of flange material fitting means 6 for fitting the flange material to the part, two sets in the illustrated example, are provided side by side. Reference numeral 5 denotes a guide disposed on the side of the conveying device 4 so as to face each collar material fitting means 6, and guides one end of the wire being conveyed to a predetermined position.

At the end of the conveying path of the conveying device 4, a screw groove is rolled at a certain length on both ends of the wire being conveyed by the conveying device 4, and the screw groove is rolled at a position an appropriate distance inward from the screw groove rolling area. A pair of left and right rolling devices 7 for rolling ribs for receiving flange material onto the wire 2, and a press means 8 for pressing a suitable central portion of the wire 2 into a flat shape are provided.

A fixed part 9 is disposed on one side of the wire transport path formed by the transport device 4, and a fixed part 9 is disposed on the other side of the wire transport path, and is supported on a table 11 and moved by the moving means 12. A movable base 10 that can be moved in the direction of distance from and near the part 9 is disposed, and the conveying device 4, the flange material fitting means 6, and the rolling device 7 are installed separately in the fixed part 9 and the movable base 10. There is. The position of the movable base 10 is adjusted in advance so that the distance between the fixed part 9 and the movable base 10 corresponds to a predetermined wire length.

To explain in more detail based on FIGS. 3 to 6, FIG. 3 shows the automatic size cutting device 3, in which the wire 2 is fed through the through hole 14 of the guide 13, and the tip is connected to the positioning stopper. 15, the automatic dimensioning and cutting device 3 is configured to operate.

That is, the screw shaft portion 1 into which the stopper 15 is screwed
The shaft body 16 having a diameter of 6a is capable of sliding only in the axial direction at the spline shaft portion 16b near the end on the feeding direction side of the wire rod 2 with respect to the bevel gear 18 which is supported only rotatably by a bearing 17. The wire rod 2 is biased in the opposite direction to the feeding direction by a compression coil spring 21 interposed between the thrust bearing 19 fitted to the shaft body 16 and the fixed-side spring receiver 20. has been done. Reference numeral 22 denotes a driving bevel gear that meshes with the bevel gear 18. By rotationally driving this bevel gear 22 by a driving means (not shown), the shaft body 16 is rotated via the bevel gear 18, and the stopper 15 is rotated. The position of the wire rod 2 can be adjusted forward or backward in the feeding direction of the wire rod 2.

The end of the shaft body 16 on the opposite side to the wire rod feeding direction is provided with a movable base 2 that can slide back and forth in the wire rod feeding direction.
It is rotatably supported by a bearing member 24 attached to 3. The guide 13 having the through hole 14 is attached to the movable base 23, and a movable blade body 27 that can be raised and lowered and has a cutting blade portion 26 that comes into sliding contact with the inner end surface 25 of the guide 13 is attached to the movable base 23.
is supported by Reference numeral 28 denotes a spring that biases the movable blade body 27 in the upward direction; The other end 28c is in contact with the movable blade body 27.
It is in contact with the lower side of the pin 30 protruding from the top. 31
is a hammer that moves up and down continuously, and when the movable table 23 moves a certain distance in the feeding direction of the wire rod 2, the step surface 32 formed at the upper end of the movable blade body 27 is moved to the striking part 33 of the hammer 31. When entering the lower side, the striking portion 33 strikes the movable blade body 27 downward via the stepped surface 32.

According to the automatic size cutting device 3 described above, the tip of the wire rod 2 being fed comes into contact with the stopper 15 via the through hole 14 of the guide 13, and the shaft body 16 and the movable table 23 are connected via the stopper 15. are integrally pressed and moved in the wire feeding direction against the biasing force of the compression coil spring 21. However,
When the movable base 23 moves a certain distance in the wire feeding direction, the movable blade body 2 moves together with the movable base 23.
A hammer 31 in which the stepped surface 32 of No. 7 is moving up and down.
The movable blade 27 enters the vertical path of the striking part 33, and the movable blade body 27, which is at the upper limit position due to the biasing force of the spring 28, is driven down by the striking part 33. As a result, the wire 2 is instantly cut by the rear end surface 25 of the guide 14 (the exit of the through hole 14) and the cutting blade portion 26 at the position where the wire rod 2 exits from the through hole 14.

The length of the cut wire 2 is equal to the distance between the stopper 15 and the rear end surface 25 of the guide 14 (the exit of the through hole 14). Therefore, the cut length of the wire 2 can be adjusted by rotating the shaft 16 and changing the position of the stopper 15 back and forth in the wire feeding direction, as described above. That is, according to this automatic size cutting device 3, a wire rod cut to an arbitrary length can be obtained. The position of the stopper 15 can be adjusted even when the device is in operation.
This can be done freely by rotating 2.

When the cut wire 2 falls downward due to the impact from the movable blade 27, the stopper 15 and the shaft 1
6, and the movable base 23 are compressed coil springs 21
The wire rods are moved backward together by the urging force of , return to the original position, and wait for the wire rod 2 to be fed subsequently.

As shown in FIG. 4, the cut wire falls through a wire guide disposed below the device 3 and is supplied to the conveying device 4. As shown in FIG. 1, this conveying device 4 is composed of a pair of left and right chain conveyors 34 and 35, one chain conveyor 34 is fixed in position on a fixed part 9, and the other chain conveyor 35 is supported on a movable table 10. As a result of the movable table 10 being moved in accordance with the cut length of the wire rod 2, both chain conveyors 34 and 35 always support positions near both ends of the wire rod 2 regardless of the length of the cut wire rod, It can be transported. Both chain conveyors 34 and 35 hold and convey wire rods one by one in recesses 37 (see FIG. 4) between convex portions 36 spaced at equal intervals.

Next, a cup-shaped flange material 44 is attached to the end of the separator wire material 38 (the wire material 2 cut into a predetermined length) which is transported substantially horizontally in parallel at regular intervals by the transport device 4. The flange material fitting means 6 for fitting will be explained.

As shown in FIG. 1, this flange material fitting means 6 is provided at one side of the conveyance path of the wire 38 by the conveyance device 4, that is, at two locations on the front and back sides of the fixing part 9 side, and at two locations on the front and back sides of the fixing part 9 side. Flange material fitting means on the fixing part 9 side are disposed on the other side of the conveyance path, that is, on the front and back sides of the movable table 10 side, on the conveyance direction side (lower side) of the conveyance device 4 than the fitting means 6. The guides 5 are provided on the side of the movable base 10 facing the movable base 10 and on the side of the fixed part 9 facing the collar material fitting means 6 on the side of the movable base 10. A guide plate 39 (see FIG. 1) guides one end of the wire rod 38 toward the other end, that is, the flange material fitting means 6, to a predetermined position. and a position adjustment means 42 such as a cylinder for adjusting the length direction of the guide plate 3.
The rear half of the wire rod 9, that is, the end side on the wire transport direction side is open, and its elasticity presses the wire rod 38 toward the opposing collar material fitting means 6.

Furthermore, one of the two flange material fitting means 6 on the same side, for example, the front flange material fitting means 6 (on the upper side in the wire transport direction) is for handling, for example, a flat washer, and the other flange material fitting means 6 is for handling a flat washer, for example. The shape fitting means 6 handles the cup-shaped flange material 44, and depending on the flange material to be fitted to the wire rod 38, either one of the two sets of flange material fitting means 6 is used. Only the fitting means 6 are selectively used.

The structure of each flange material fitting means 6 is basically the same, and the structure and operation of the flange material fitting means 6 which handles the cup-shaped flange material 44 will be explained below.

As shown in FIGS. 5 and 6, two rows of rail-like members 46a,
46b, and a flange material moving path 47 with a groove-shaped cross section is formed to guide the cup-shaped flange material 44 movably in parallel to the wire transport direction. On the upper side of this flange material moving path 47, the end of the wire rod 38 supported by the conveying device 4 is connected to the flange material moving path 47.
Wire rod guide rail 4 that guides the wire to the center position of the width of the wire rod.
3 is disposed between the starting end of the outer guide surface 47a of the guide surfaces 47a and 47b on both sides of the flange material moving path 47 and the wire rod guide rail 43. A recessed space 48 for positioning the flange material that protrudes upwardly is provided in series, and a cup-shaped flange material 44 is inserted from above into this recessed space 48 in a vertical direction with its shaft hole 45 oriented horizontally. A guide 41 for feeding the flange material to be dropped is provided.

The recessed space 48 for positioning the flange material is such that the end of the wire 38 moving in contact with the wire guide rail 43 is caught in the shaft hole 45 of the cup-shaped flange material 44, and the peripheral edge of the flange material 44 is at a position where a part of the outer guide surface 47a projects inward from the starting end of the outer guide surface 47a,
The cup-shaped collar material 44 is positioned obliquely with respect to the wire transport direction. Further, the flange material feeding guide 41 is connected to a flange material feeder 40 that is the same as a nut feeder or the like.

The side wall of the recessed space 48 for positioning the flange material is formed by the lower end of the flange material feeding guide 41 . A passage 49 is provided in which pieces are vertically stacked vertically one by one in a horizontal position and move downward by gravity, and one side of the lower end of the passage 49 is provided with passages 49 from the recessed space 48 for positioning the flange material. A cutout opening 50 is provided to allow the flange material 44 to escape and move into the flange material movement path 47.
Further, the outer guide surface 47 of the flange material moving path 47
The starting end of a is formed by the lower end of the flange material feeding guide 41. 51 is the passage 49
(Right above the recessed space 48 for positioning the flange material)
This is a stopper pin that is provided so that it can move in and out. By protruding this stopper pin 51, it is possible to stop the feeding of the flange material 44 into the recessed space 48 for locating the flange material.

When the stopper pin 51 is removed, the flange material feeding guide 41 is moved by the feeder 40.
The lowermost cup-shaped flange material 44 supplied in a vertically stacked state with their peripheral edges abutting each other has a recessed space 48 for flange material positioning and a flange material movement path 47, as shown in FIG. The shaft hole 45 of the flange material is positioned at a fixed position spanning the wire end portion 38a.
It opens diagonally inward and upward within the path of movement.

On the other hand, the wire rod 3 transported by the transport device 4
8 is positioned in the width direction of the conveyance path by the guide plate 39 of the guide 5 and the wire guide rail 43. Therefore, the end portion 38a of the wire rod 38 conveyed by the conveying device 4 is securely fitted into the shaft hole 45 of the cup-shaped flange material 44 that is positioned and waiting in the recessed space 48 for flange material positioning. It will match.

The cup-shaped flange material 44 automatically fitted to the wire end portion 33a in this manner moves together with the wire 38 within the flange material movement path 47. On the other hand, when the lowermost flange material 44 of the flange material feeding guide 41 is pulled out by the wire end 38a as described above, the next cup-shaped flange material 4 riding on the flange material 44
4 falls into the flange material positioning space 48 under its own weight,
stand by.

When the cup-shaped flange material 44 is fitted to one end of the wire 38 using one flange material fitting means 6 as described above, the wire 38 is connected to the opposite end of the flange material fitting means 6. When passing through the position of the flange material fitting means 6, the cup-shaped flange material 44 is fitted to the other end of the wire 38 in the same manner as described above. Wire rod 38 with collar material 44 fitted to both ends in this way
is sent to the next-stage rolling device 7 by the conveying device 4, and a screw groove is rolled in a constant length region on both sides, thereby forming a helical shaft portion. At this time, the rib rolling portion 53 (fourth
(see figure), a rib for receiving the flange material is formed at a position a certain distance inward from the inner end of the screw shaft portion at both ends, and the flange material 44 that is fitted first is
It is held between this rib and the screw shaft portion. At an appropriate central portion of the wire 38 sent out from the rolling device 7, a rotation preventing nip portion is then pressed into a flat shape by the pressing means 8.

(Effects of the Invention) The device of the present invention can be implemented as described above, and a cup-shaped flange material that fits into each other when stacked in the direction of the shaft hole is attached to the end of the separator wire. It is possible to smoothly and automatically fit the shaft hole of the material and the wire without making undue sliding contact. Moreover, the angle of inclination of the cup-shaped flange material with respect to the wire rod movement direction is made relatively large, and the apparent width of the shaft hole of the flange material as seen from the wire rod side is increased, thereby increasing the positioning accuracy of the flange material and the end of the wire rod. Even if it is somewhat low, the end of the wire rod and the shaft hole of the flange material can be reliably fitted, so the cup-shaped flange material can be reliably fitted to the end of the wire rod.

[Brief explanation of the drawing]

Fig. 1 is a schematic plan view showing the entire separator manufacturing machine, Fig. 2 is an enlarged elevation view thereof, Fig. 3 A is a longitudinal cross-sectional elevation view of the automatic sizing cutting device, and Fig. 3 B is a plan view of the main parts. 4 is an enlarged sectional view taken along the line A-A in FIG. 1, FIG. 5 is a perspective view showing the main parts of the flange material fitting device, and FIG. 6 is a cross-sectional plan view of the same device. 2...Wire rod, 3...Automatic size cutting device, 4...
Wire transport device, 5... Guide, 6... Flange material fitting means, 7... Rolling device, 9... Fixed part, 10... Movable base, 11... Table, 12... Moving means, 1
3...Guide, 14...Through hole, 15...Stopper for positioning the tip of wire rod, 16...Shaft body, 21...
... Compression coil spring for biasing the shaft body, 22 ... Drive bevel gear for adjusting the stopper position, 23 ...
...Slidable movable base, 24...Bearing member, 2
6... Cutting blade portion, 27... Movable blade body, 28... Spring for movable blade biasing body, 31... Hammer, 3
2... Step surface for being hit, 33... Hitting part, 34,3
5... Chain conveyor, 38... Dimensionally cut wire rod, 38a... Wire rod end, 39... Guide plate, 40... Feeder, 41... Flange material feeding guide, 42... Guide plate position adjustment means,
43... Wire rod guide rail, 44... Cup-shaped collar material, 45... Shaft hole, 46a, 46b... Rail-shaped member, 47... Flange material movement path, 47a, 47b
... Guide surface, 48 ... Recessed space for positioning the flange material.

Claims (1)

[Claims] 1 A flange material that guides a cup-shaped flange material 44 so as to be movable in parallel to the wire transportation direction, on the side of the wire transportation device 4 that supports and transports the separator wires 38 parallel to each other at regular intervals in a substantially horizontal manner. Movement route 47
The end portion 3 of the wire rod 38 supported by the conveying device 4 is formed on the upper side of this collar material moving path 47.
A wire rod guide rail 43 that guides the flange material moving path 47 to a position approximately at the center of the width of the flange material moving path 47 is disposed, and a wire rod guide rail 43 is provided between the starting end of the outer guide surface 47a of the flange material moving path 47 and the wire rod guide rail 43. A recessed space 48 for positioning the flange material that protrudes diagonally outward and upward from the flange material moving path 47 is provided in succession, and a cup-shaped flange material 44 is inserted into the recessed space 48 from above.
A guide 41 for feeding the flange material is provided in which the flange material is dropped vertically so that its shaft hole 45 is oriented horizontally, and the concave space 48 for positioning the flange material moves in contact with the wire guide rail 43. The wire end 38a is caught in the shaft hole 45 of the cup-shaped flange material 44, and a part of the peripheral edge of the flange material 44 is connected to the outer guide surface 47a.
A flange material fitting device for a separator manufacturing machine, which is configured to position a cup-shaped flange material 44 obliquely with respect to the wire transport direction at a position projecting inward from the starting end of the flange material.