JP3014240U - Cassette in screw feeder - Google Patents

Abstract

(57) [Summary] [Purpose] Similar to the slit in a screw feeder, a line having a rail part that can lock the seat surface of the screw head and make it hang vertically, and a cover line part that prevents upward pull-out. An improved type that can replace the chute of a screw feeder having a groove or can be connected to the chute, and has improved the disadvantages of the sink stopper stopper for screw sinks in the cassette for the screw feeder that can be attached to and detached from the main unit Providing a cassette. [Structure] The groove is formed by a notch surrounding frame 24 having a uniform wall thickness which accommodates only the screw head portion and does not have a screw shaft portion accommodating portion, thereby improving inconveniences such as sink marks. .

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cassette in a screw supply device that automatically supplies one screw to the tip of a driver for each tightening work cycle from a cassette that stores a predetermined amount of screws to be attached to an automatic driver.

[0002]

[Prior art]

 The applicant of the present invention has proposed a screw feeding device in which the aligned screws are preliminarily placed in the vicinity of the automatic driver and are put out in front of the driver for each tightening work cycle. This is done in Japanese Patent Application No. 7-3390. In other words, similar to the slit in the screw feeder, it has a groove with a rail part that can lock the seat surface of the screw head and can be suspended vertically, and a cover line part that prevents upward pull-out. , A predetermined number of screws are stored in cascade in a cassette that can be used as a substitute for the screw feeder or connected to the chute.On the other hand, the main unit that is assembled to the tip outer cylinder of the automatic driver is connected to the tip chuck part. As a screw guide chute consisting of a screw, as in the case of the above-mentioned cassette, the groove for suspending the screw in the upward direction is secured in an inclined posture in which the screw can be gravity-fallen, and the cassette can be detachably attached to the main body unit in the inclined posture. Assembling and tightening Each cycle of work, a screw is sent to the screw guide chute by gravity via the escape mechanism, and gravity is applied to the chuck part at the tip of the driver. Is obtained by the automatic supply is slid in Yukari' to wear.

This is as shown in FIG. 9, in which reference numeral 1 is detachably attached to the tip outer cylinder 3 of the automatic driver main body 2 as an attachment or foreseeable outer cylinder 3 The unit main body may be integrally provided with the screw, and the screw 6 that is delivered to one unit is attached to the tip of the vertically movable block 5 that is pressed and urged by the interposition of the ridge 4 that is one of the component parts. A chuck portion 7 for holding is provided, and a branched screw guide chute 8 capable of locking and suspending the head of the screw 6 is provided on the chuck portion 7 so as to be linked. As shown in FIG. 10, the block 19 fixed to the outer cylinder 3, which is the other component, and the block 5 above are fitted to the block 5 forming the prismatic space 20 by dividing the block into two as shown in FIG. This is done by incorporating a guide tube 22 with a square flange 21 attached to the end of the strip 4 and the lower surface of the block 19 into the space 23 of the prism, and ascending / descending a predetermined span without falling off while stopping rotation (block 5 and the block 19 can approach and separate from each other. A cassette 9 is detachably attached to the upper end of the screw guide chute 8. Since the power for delivering the screw from the cassette 9 to the main body unit 1 and the screw conveying power to the tip chuck portion 7 in the main body unit 1 is due only to gravity, no power source other than the power source for driving the automatic driver is required. .

As shown in FIG. 11, the basic structure of the above-mentioned cassette 9 is such that a rail 10 has a maximum cross-section and a flat screw head 6 of a flat screw 6 which is widened toward the end as a sliding surface to lock the screw. The threaded shaft 6b at the center of gravity of 6 is suspended so that there is no risk of rolling and there is no overlap with adjacent screws, and it is an extremely stable cover that prevents upward slip. The addition of the part 11 and what the applicant has specifically presented in the above application is shown in detail in FIG. That is, a through-hole 12 having a T-shaped cross section, which has a rail 10 on which a screw 6 can be suspended and cascaded similarly to a slit in a screw feeder and which has a cover portion 11, is formed in a transparent resin bar. It is provided longitudinally, and one or both of which is provided with a stopper 13 for preventing the screws from coming off of a bent leaf spring having a dogleg shape. By using a transparent resin, it can be seen from the outside, and if various constants are used, the number of tightened screws can be counted, and it can be used as a confirmation standard for tightening work.

However, the cassette 9 has no fear of the screws coming off from the accommodation port, and the cassette 9 does not come off from the top, and the screws do not come off under any handling. Furthermore, since it has a common passage for the slit of the screw feeder, it can be easily supplied with the screw by connecting it to the tip of the chute of the existing screw feeder, and it is also an inexpensive screw feeder. The cassette 9 may be modified to accommodate screws only, that is, the cassette 9 may be detachably assembled instead of the shoot. An example thereof is shown in FIG. That is, it suffices that the cassette 9 is detachably attached to the screw feeding portion 15 of the stock case 14 equipped with a dipper (not shown), instead of the chute. That is, the receiving frames 16 and 16 'may be provided on the upper side and the lower side, respectively, to receive them. The encircled lines α and β of the relevant portion are shown in enlarged detail in FIGS. 14 and 15. As shown in FIG. 14, the upper end of the cassette 16 ′ is dropped into the receiving frame 9 and moved forward to advance the screw feeding portion. Aim at 15. Reference numeral 17 in the drawing denotes an opening bar for the stopper 13 which will be described later.

Further, as shown in FIG. 15, the lower end of the cassette 9 may be dropped into and supported by the receiving frame 16 '. It is necessary to open the stopper 13 for assembling with the screw feeding portion 15, but if the opening bar 17 is arranged on the feeding portion 15 side as shown in FIG. 16 and the stopper 13 is opened by inserting and assembling. good. As shown in FIGS. 17 and 18, if a similar opening bar 18 is arranged on the screw guide chute 8 side as well, the cassette 9 can be assembled to the screw guide chute 8. At this time, as described above, when the stoppers 13 are provided on both sides, it is convenient to assemble regardless of the directionality (the same applies to the screw feeder).

[0007]

[Problems to be solved by the device]

 A through hole with a T-shaped cross section is vertically provided in the above transparent resin bar, and one or both of them is equipped with a stopper for preventing the screws from coming off by a leaf spring that can be retracted by bending the tip into a dogleg shape. In addition, various cost and functional improvements can be found in the cassettes for screw feeders. That is, since the manufacturing is done by resin drawing, the mold cost is bulky and the cost is high. Since the cross-sectional outer shape is rectangular and the through hole is T-shaped, the wall thickness of the vertical groove for accommodating the screw shaft portion 6b is different from that of the other portion. Compared with other types of screw head shapes, it is thicker, so that the occurrence of so-called sink marks is unavoidable, and there is a risk of clogging even with screws with a wide width. However, they do not match and are unstable, and dust is accumulated due to repeated use due to the dead zone corners. Furthermore, since the stopper 13 is made of a leaf spring, means for screwing or contacting It is necessary to install it with this, and the processing cost becomes high.

The present invention has been made in view of the above circumstances, and its purpose is to make it possible to manufacture even a small rod by sheet metal processing that can hold down the cost and resin drawing. One with a uniform thickness on all walls that does not cause sink marks, one that stabilizes by forming a storage part that matches various screw head shapes, one that can eliminate dead zones by eliminating dead zones, and one-touch stopper It aims to provide a cassette that can be attached and detached at a low cost.

[0009]

[Means for Solving the Problems]

 In order to achieve the above object, the cassette according to the present invention is provided with a rail part capable of suspending the seat surface of the screw head in the same manner as the slit in the screw feeder so as to be suspended vertically and a cover strip for preventing the upward disengagement. A cassette for a screw feeder that can replace the chute of a feeder or can be connected to the chute and that can be attached to and detached from the main body unit. It is said that it consists of a notch surrounding frame of uniform wall thickness that accommodates only the head part and does not have a screw shank accommodating part and exposes the screw shank.

Similar to the slit in the screw feeder, the screw feeder has a rail groove having a rail portion that can lock the seat surface of the screw head and can be vertically suspended, and a ridge portion that prevents upward pull-out. Is a cassette for a screw supply device that can be replaced with or connected to the chute and that can be attached to and detached from the main unit, and the groove is formed in the screw head receiving portion and the screw shaft portion receiving portion. It consists of a hanging frame part that has only a hanging wall and no bottom, and has a uniform wall thickness.

Similar to the slit in the screw feeder, the screw feeder has a rail groove having a rail portion that can lock the seat surface of the screw head and can be vertically suspended and a ridge portion that prevents upward pulling out. Of the above-mentioned chute, which can be replaced with or connected to the chute, and which can be attached to and detached from the main unit, wherein the groove is composed of a surrounding frame with a uniform wall thickness. Is.

Similar to the slit in the screw feeder, the screw feeder has a rail groove having a rail portion which can lock the seat surface of the screw head and can be vertically suspended, and a rib portion which prevents upward pulling out. Is a cassette for a screw supply device that can be replaced with or connected to the chute and that can be attached to and detached from the main unit, and the screw head accommodating portion of the groove has a shape similar to the screw head shape. It is the one.

The stoppers for preventing the screws from falling out in the above cassettes are the horizontal grooves and the horizontal cutouts provided on both side surfaces at the same level as the horizontal cutouts provided at a predetermined depth at the end of the screw head housing portion of the cassette. The R-shaped saddle part that folds the cassette roof, which is mounted against the vertical grooves provided on both sides from the top in a more rearward position, the hanging part that fits into the vertical grooves, and the horizontal grooves. It is preferable to use a wire spring composed of a horizontal carry-out portion and a dogleg-shaped portion to be fitted.

The stoppers for preventing the screws from coming off are horizontal concave grooves provided on both side surfaces at the same level as the horizontal notch provided at a predetermined depth at the end of the screw head accommodating portion of the cassette and a predetermined rear position from the horizontal notch. A saddle-shaped groove provided on the top surface and both side surfaces of the saddle-shaped groove, a base portion laid in the saddle-shaped groove, a horizontal take-out portion fitted to the horizontal groove, and a dogleg-shaped tip. It is preferable to use a leaf spring including a pair of strip plate members and a stopper plate that is fitted in the saddle-shaped groove so as to press the strip plate member.

[0015]

[Action]

 If the groove for storing the screw is composed of a chipped surrounding body with a uniform wall thickness, if it can be formed only by bending, it can be easily manufactured by sheet metal processing and resin drawing processing. With those that do, you don't have to worry about sinking. Further, in the case of the notched surrounding body which does not have the screw shaft portion accommodating portion, the size can be reduced, and the screw can be confirmed even if it is not a transparent or transparent material. In the case of an enclosure with a uniform wall thickness, it is only possible to pull out the resin, but there is no concern about sink marks. If the screw head accommodating part of the groove has a shape similar to the screw head shape, rattling is held down and stabilized, and since there is no dead zone where the screw head does not enter, dust may accumulate at the corners. Disappear. If the stopper for preventing the screws from falling off is a wire spring or leaf spring that can be attached and detached with one touch, the installation cost can be significantly reduced.

[0016]

【Example】

 Examples will be described with reference to the drawings. 1A to 1D of FIG. 1A, a grooved groove 24 of a uniform wall thickness is provided in which the groove of the cassette is housed only in the screw head, and the screw shaft housing is omitted to expose the screw shaft. The configured variations are shown. In either case, sheet metal stamping is possible and, of course, resin drawing is also possible. In the case of resin, since the wall thickness is uniform, sink marks do not occur. In FIGS. 1B to 1D), the groove in the cassette is a burr which is composed of a chipped surrounding frame 25 with a bottomless uniform wall thickness which is composed only of a screw head housing portion and a hanging wall portion of a screw shaft housing portion. The application. The screw shaft may or may not stick out. The one that does not stick out has the advantage of not touching the screw shaft when gripping the cassette.

The same merit as the above-mentioned a is achieved. The variations shown in (a) and (b) of FIG. 2 are similar to those of (b) of FIG. 1, but show those suitable only for resin processing. 3A to 3C show variations constituted by the surrounding frame 26 having a uniform wall thickness over the entire frame, which is, of course, due to resin processing. High strength due to completion of surrounding. A transparent resin must be used to ensure the visibility of the containment service.

FIGS. 4A to 4C show variations in which the rectangular screw head accommodating portion in the preceding product shown in FIG. 11 described above has a shape 27 similar to various screw head shapes. The restraint force on the screw head increases and it stabilizes, and there is no dead zone where the screw head does not contact, so dust is not stuck in the corner. The types of screws 6 in the figure are pan (a), bind (b), truss (c), plate (d), plate (e), sems (he), and W sems small (g).

It is preferable that the cassette is provided with a stopper for preventing screws from falling off, but with the leaf spring of the preceding product, it has to be fixed with screws or adhered, which is troublesome to process. FIG. 5 shows a stopper 28 that can be mounted with one touch. That is, a single wire is bent to form a R-shaped saddle portion 28a that crotches the cassette roof, a hanging portion 28b provided on both sides of the saddle portion 28a, and a horizontal portion protruding forward from the lower end of the hanging portion 28b. A wire spring is formed of a carry-out portion 28c and a dogleg portion 28d bent inward at the tip of the horizontal carry-out portion 28c.

The dog-legged portion 28d may have only one of them. In order for the cassette to receive the above stopper 28, the following processing is required. That is, at the end 29 of the screw head accommodating portion, horizontal recesses 31 are provided on both side surfaces at the same level as the horizontal notch 30 provided at a predetermined depth (in the case of resin molding, if molding is performed over the entire length as in the illustrated example. And a vertical groove 32 provided from the top surface on both side surfaces at a predetermined position behind the horizontal notch 30.

Therefore, the horizontal notch 30 has a dog-legged portion 28 d, the horizontal groove 28 has a horizontal take-out portion 28 c, and the vertical groove 32 has a hanging portion 28 b for the resilience of the R-shaped saddle portion 28 a. If you fit and groin while expanding against it, it will be tightly attached with one touch. When only one dogleg 28d is provided, the corresponding horizontal notch 30 need not be provided. The dog-legged portion 28d acts on the screw head to perform a stopper function.

In the figure, b shows the case of cassettes of different variations. FIG. 6 shows the anti-cassette receiver 33 in the unit body 1 described above. As the receiver 33, a horizontal cutout 35 for entering the dog-legged portion 28d may be provided at the receiving opening 34 at the tip of the cassette. Then, as shown in FIG. 7, when the cassette is inserted, the dog-legged portion 28d automatically rides on the side wall of the receiver 33 to release the dam.

Depending on the screw, it may be preferable to make contact with a larger area. In this case, it is better to make the stopper with a plate rather than the wire above. That is, FIG. 8 shows a stopper 36 made of sheet metal. That is, the sheet metal is bent to form a pair of strip plate members including a base portion 36a embedded in the cassette roof, a horizontal take-out portion 36b extending from the end of the base portion 36a, and a dogleg-shaped portion 36c, and the base. A leaf spring composed of a stopper plate 36d for pressing the portion 36a is formed.

Only one of the above strip materials may be used. In order for the cassette to receive the above stopper 36, the following processing is required. That is, at the same level as the horizontal notch provided at a predetermined depth in the screw head accommodating portion end 37, the horizontal recessed groove 39 provided on both side surfaces and the horizontal notch 38 are provided at a predetermined rear position on the top surface and both side surfaces. A saddle-shaped groove 40 is provided.

By fitting the dogleg portion 36 c in the horizontal notch 38, the horizontal take-out portion 36 b in the horizontal groove 39, and the base portion 36 a and the stopper plate 36 d in the saddle groove 40, one-touch operation is possible. It is installed.

[0026]

[Effect of device]

 Since the present invention is configured as described above, it has the following effects. According to the first aspect of the invention, it is possible to perform sheet metal processing that can be made compact and at low cost, and when using resin processing, sink marks do not occur. It is easy to check the screws.

According to the second aspect of the invention, it is possible to process the sheet metal at a low cost, and the sink mark does not occur in the case of resin processing. According to the third aspect of the invention, the resin processing can be finished without causing sink marks. According to the fourth aspect of the invention, the stability of the storage screw is increased and the dead zone where dust is accumulated is eliminated.

According to the fifth and sixth aspects of the invention, the stopper for preventing the screws from coming off can be attached by one-touch without any trouble such as screwing or adhesion, which reduces the cost. obtain.

[Brief description of drawings]

1A and 1B are variations of a groove of the present invention.

FIG. 2 is a variation diagram of a groove of the present invention.

FIG. 3 is a variation drawing of a groove of the present invention.

FIG. 4 is a variation diagram of a groove according to the present invention.

5A is an explanatory view of the stopper assembly of the present invention, and FIG. 5B is an explanatory view of a cassette of another variation.

FIG. 6 is an explanatory diagram of a receiver assembly of the cassette of the present invention.

FIG. 7 is an explanatory view of the cassette of the present invention with a receiver assembled.

FIG. 8 is an explanatory view of another stopper assembly of the present invention.

FIG. 9 is a basic schematic view of a screw supply device.

FIG. 10 is a development explanatory diagram of a main part in FIG. 8.

FIG. 11 is an explanatory diagram of a screw suspension alignment principle in the cassette.

FIG. 12 is a bird's eye view of the preceding cassette.

FIG. 13 is an overall view of a screw feeder modified only for a cassette.

FIG. 14 is an enlarged view of an encircled line α in FIG.

FIG. 15 is an enlarged view of a portion β of the encircled line in FIG.

FIG. 16 is a diagram showing how the cassette is connected to a screw feeder or the like.

FIG. 17 is a perspective view showing the arrangement of an escape mechanism.

FIG. 18 is an explanatory view of the procedure for connecting the escape mechanism to the guide chute.

[Explanation of symbols]

 1 unit main body 2 automatic driver main body 3 outer cylinder 4 repulsion 5 block 6 screw 6a seat surface 6b screw shaft part 7 chuck part 8 screw guide chute 9 cassette 10 rail 11 cover line part 12 through hole 13 stopper 14 stock case 15 screw feeding Part 16 Receiving frame 17 Opening bar 18 Opening bar 19 Block 20 Prismatic space 21 Square collar 22 Guide cylinder 23 Prismatic space 24 Enclosing frame 25 Enclosing frame 26 Enclosing frame 27 Shape similar to screw head shape 28 Stopper 28a Saddle part 28b 28c Horizontal take-out part 28d V-shaped part 30 Horizontal notch 31 Horizontal concave groove 32 Vertical concave groove 33 Cassette receiver 34 Receiving port 35 Horizontal notch 36 Stopper 36a Base part 36b Horizontal take-out part 36c V-shaped part 36d Stop plate 37 End of screw head housing 38 Horizontal notch 39 Horizontal groove 40 Saddle groove

Claims (6)

[Scope of utility model registration request] 1. A screw having a groove having a rail portion capable of engaging and vertically suspending a seat surface of a screw head like a slit in a screw feeder and a cover portion for preventing upward pull-out. A cassette for a screw supply device that can replace the chute of the feeder or can be connected to the chute and can be attached to and detached from the main unit, and accommodates only the screw head part in the groove and the screw shaft part. A cassette in a screw supply device, which is composed of a broken surrounding frame having a uniform wall thickness that exposes the screw shaft portion without a portion. 2. A screw having a groove having a rail portion capable of engaging and vertically suspending a seat surface of a screw head like a slit in a screw feeder, and a cover portion for preventing upward pull-out. A cassette for a screw supply device which can be replaced with or connected to the chute of the feeder and can be attached to and detached from the main body unit, wherein the groove is formed between the screw head housing portion and the screw shaft housing portion. A cassette in a screw supply device, which is composed of a broken surrounding frame having only a hanging wall portion and no bottom and having a uniform wall thickness. 3. A screw having a groove having a rail portion capable of engaging and vertically suspending the seat surface of the screw head like a slit in a screw feeder, and a cover portion for preventing upward pull-out. A cassette for a screw supply device that can replace the chute of the feeder or can be connected to the chute and that can be attached to and detached from the main body unit, wherein the groove is composed of a surrounding frame with a uniform wall thickness for all frames. Cassette in screw feeder. 4. A screw having a rail groove having a rail portion capable of locking the seat surface of the screw head to be suspended and cascaded similarly to the slit in the screw feeder and a cover portion for preventing upward pull-out. A cassette for a screw supply device that can replace the chute of the feeder or can be connected to the chute and can be attached to and detached from the main unit, and the screw head accommodating portion of the groove is similar to the screw head shape. A cassette in a shaped screw feeder. 5. A stopper for preventing the screws from falling off is provided with a horizontal recessed groove provided on both side surfaces at the same level as a horizontal notch provided at a predetermined depth at the end of the screw head housing portion of the cassette, and a predetermined portion after the horizontal notch. The R-shaped saddle part that grows the cassette roof with the vertical groove provided on both sides at the top from the top surface, the hanging part that fits in the vertical groove, and the horizontal groove 5. The cassette in the screw supply device according to claim 1, wherein the wire spring is composed of a horizontal carry-out portion and a dogleg-shaped portion. 6. A stopper for preventing the screws from falling off is provided with a horizontal groove formed on both side surfaces at a level same as a horizontal notch provided at a predetermined depth at the end of the screw head housing portion of the cassette and after a predetermined time from the horizontal notch. At the top surface and saddle-shaped grooves provided on both side surfaces, a base portion laid in the saddle-shaped grooves, a horizontal take-out portion fitted to the horizontal grooves, and a tip dogleg portion. 5. A screw supply device according to claim 1, wherein the plate spring is composed of a pair of strip plate members consisting of and a stop plate fitted into the saddle-shaped groove so as to press the strip plate member. cassette.