EP0034866B1 - Bristles feeding device for brush making machines - Google Patents

Description

The present invention relates to a fiber feeding device according to the first part of claim 1.

Such a fiber feed device is known from FR-A-2358126 and from US-A-3,606,472. In this known fiber feed device, the control means consist of relatively complicated individual mechanisms for each fiber package. The arrangement of several fiber magazines also turns out to be impossible.

The object of the present invention is to create a fiber feed device of the type described above, which is characterized by a significantly simpler construction and by the possibility of using any number of cassettes.

For this purpose, the fiber packs are arranged according to the invention in fiber chambers belonging to a common fiber box, whereby this fiber box can be shifted step by step by the likewise common control means in order to arrange the fiber packs one after the other with respect to this fiber box, and these fiber packs then pushed into the fiber magazine by the likewise common push elements will.

Thanks to the presence of the communal fiber box and the joint ramming means, the construction of the entire system is particularly simple and the number of fiber chambers can be chosen arbitrarily.

• die Abbildung 1 eine erfindungsgemässe Faserzufuhrvorrichtung in Zusammenwirkung mit dem Fasermagazin einer Bürstenherstellungsmaschine schematischerweise wiedergibt;
• die Abbildungen 2, 3, 4 und 5 vier gemäss den Linien II-II, III-III, IV-IV und V-V der Abbildung 1 gemachte Schnitte der betreffenden Faserzufuhrvorrichtung wiedergeben ;
• die Abbildung 6 eine Ansicht gemäss dem Pfeil F6 der Abbildung 1 wiedergibt;
• die Abbildung 7 eine der Abbildung 1 entsprechende Ansicht einer Durchführungsabart des erfindungsgemässen Systems wiedergibt ;
• die Abbildungen 8, 9 und 10 drei gemäss den Linien VIII-VIII, IX-IX und X-X der Abbildung 7 gemachte Schnitte der betreffenden erfindungsgemässen Faserzufuhrvorrichtung wiedergeben ;
• die Abbildung 11 eine Ansicht gemäss dem Pfeil F11 der Abbildung 7 wiedergibt;
• die Abbildung 12 eine Kassette für fie Vorrichtung gemäss den Abbildungen 7-11 in perspektivischer Ansicht wiedergibt ;
• die Abbildung 13 eine der Abbildung 1 entsprechende Ansicht eines senkrecht angeordneten erfindungsgemässen Faserbehälters wiedergibt ;
• die Abbildungen 14 und 15 zwei gemäss den Linien XIV-XIV und XV-XV der Abbildung 13 gemachte Schnitte wiedergeben ;
• die Abbildung 16 eine Ansicht gemäss dem Pfeil B16 der Abbildung 13 wiedergibt ;
• die Abbildung 17 eine der Abbildung 13 entsprechende Ansicht einer mit einem Doppelfasermagazin ausgestatteten Bürstenherstellungsmaschine wiedergibt;
• die Abbildung 18 eine Ansicht gemäss dem Pfeil F18 der Abbildung 17 wiedergibt ;
• die Abbildung 19 eine Durchführungsabart in Draufsicht wiedergibt, wobei der Faserbehälter kreisförmig ausgeführt ist ;
• die Abbildungen 20 und 21 zwei gemäss den Linien XX-XX und XXI-XXI der Abbildung 19 gemachte Schnitte wiedergeben ;
• die Abbildung 22 eine Ansicht gemäss dem Pfeil F22 der Abbildung 19 wiedergibt;
• die Abbildungen 23 und 25 zwei der Abbildung 19 entsprechende Ansichten weiterer Durchführungsabarten wiedergeben ;
• die Abbildung 24 eine Ansicht gemäss dem Pfeil F24 der Abbildung 23 wiedergibt ; und
• die Abbildung 26 eine Durchführungsabart des erfindungsgemässen Systems in bezug auf die Anwendung kreisförmiger Faserzufuhrvorrichtungen in Zusammenwirkung mit einer mit einem Doppelfasermagazin ausgestatteten Bürstenherstellungsmaschine wiedergibt.

The invention is illustrated by the following description of some examples where

• Figure 1 schematically represents a fiber feed device according to the invention in cooperation with the fiber magazine of a brush manufacturing machine;
• Figures 2, 3, 4 and 5 represent four sections of the fiber feeder concerned taken according to lines II-II, III-III, IV-IV and VV of Figure 1;
• Figure 6 shows a view according to arrow F6 of Figure 1;
• FIG. 7 shows a view corresponding to FIG. 1 of an implementation variant of the system according to the invention;
• Figures 8, 9 and 10 represent three sections taken according to lines VIII-VIII, IX-IX and XX of Figure 7 of the relevant fiber feed device according to the invention;
• Figure 11 shows a view according to arrow F11 of Figure 7;
• Figure 12 shows a cassette for the device according to Figures 7-11 in a perspective view;
• FIG. 13 shows a view corresponding to FIG. 1 of a vertically arranged fiber container according to the invention;
• Figures 14 and 15 show two cuts made according to lines XIV-XIV and XV-XV of Figure 13;
• Figure 16 shows a view according to arrow B16 of Figure 13;
• FIG. 17 shows a view corresponding to FIG. 13 of a brush production machine equipped with a double-fiber magazine;
• Figure 18 shows a view according to arrow F18 of Figure 17;
• Figure 19 shows a bushing variant in plan view, the fiber container being circular;
• Figures 20 and 21 show two cuts made according to lines XX-XX and XXI-XXI of Figure 19;
• Figure 22 shows a view according to arrow F22 of Figure 19;
• Figures 23 and 25 show two views corresponding to Figure 19 of further implementation variants;
• Figure 24 shows a view according to arrow F24 of Figure 23; and
• FIG. 26 shows an implementation variant of the system according to the invention with regard to the use of circular fiber feed devices in cooperation with a brush manufacturing machine equipped with a double fiber magazine.

The fiber feed device according to the invention according to FIGS. 1-6 essentially consists of a fiber box 1, for example made of a suitable plastic, with several (ten in the present case) fiber chambers 2, the width of which is that of the conventional fiber magazine 3 along which the so-called driver 4 extends - and moved, corresponds.

The fiber box 1 has a bottom 5 with two end walls 6 and 7, a suitable number of appropriately spaced intermediate walls 8 and a side wall 9. It is provided on both sides with a rib 10 or 11 or the like, these ribs 10 and 11 with corresponding guides 12 and 13 of a suitable table 14 cooperate, which can be moved up and down for example by means of a pressure cylinder, not shown. The table 14 is also provided with a projection 15 which carries a pressure cylinder 16, a U-shaped push element 17 being fastened to the free end of the piston rod of this pressure cylinder. The projection 15 and the pressure cylinder 16 are arranged coaxially with the fiber magazine 3.

In the walls 6, 7 and 8 fiber box 1 are provided over the entire length of the same recesses 18 and 19, the dimensions of which correspond to those of the aforementioned U-shaped push element 17, so that these recesses 18 and 19 act as guides for the push element 17, with the purpose Siche tion of the access of the push element 17 to each of the aforementioned chambers 2 in the side wall 9, an opening 20 is provided.

The bottom 5 of the fiber container is provided in the present case with projections 21 arranged under the walls 6, 7 and 8, with which a driver 22 which moves back and forth in a groove 23 of the table 14 interacts, for example with the piston rod 24 one under the aforementioned table 14 arranged printing cylinder 25 is connected.

The aforementioned chambers 2 are closed on their open side located opposite the wall 9 by means of a slide 26 which passes through suitable openings 27 in the walls 7 and 8.

The fiber magazine 3 consists of two guides 28 and 29, the distance a of which corresponds to the distance b between the walls 6 and 8, the walls 7 and 8 and two walls 8, recesses 30 and 31 being provided in these guides 28 and 29, such that the distance c between the bottoms of these cutouts 30 and 31 corresponds to the distance d between the bottoms of the two cutouts 18 and 19 of a chamber 2, with the difference, however, that the cutouts in the guides 28 and 29 are significantly higher than the cutouts 18 and 19 of the fiber container 1 are to allow a certain height adjustment when, as will be discussed below, fibers with different lengths are used.

The conventional height-adjustable base 32 of the fiber magazine 3 is arranged under the guides 30 and 31 and each of the two guides 28 and 29 has a groove 33 and 34 for a push element 35.

The use of the fiber feed device described in the previous lines is particularly simple and can be described as follows.

The fiber box 1 is filled with fibers in a separate machine, possibly in a separate workshop, which are stopped in the chambers 2 by the slide 26. The filled fiber containers are then placed in an appropriate amount near the brush making machine.

A fiber box 1 filled in this way is now pushed between the guides 12 and 13 of the table 14, specifically with the first chamber 2 compared to the fiber magazine 3 which is still filled with fibers at the moment, the pressure required for the takeover of a certain amount of fibers by the driver 4 is generated by the impact element 35, which is preferably loaded with a spring or another suitable device.

As soon as the first chamber 2 of the fiber box 1 is located opposite the fiber magazine 3, the slide 26 is removed. This is made possible by the fact that the table 14, except where the fiber magazine 3 is located, has a raised wall 36 that holds the fibers.

At this moment, the U-shaped pushing element 17 is pushed into the first chamber 2 to push the fibers against the pushing element 35, which is then pulled out of the fiber magazine 3, while the fibers produce the fiber pickup 4 under the influence of the pushing element 17 Pressure are supplied. When the push element 17 comes from the chamber 2 into the fiber magazine 3, the push element 35 is pushed back into the magazine 3 where it is arranged between the flanges of the push element 17, so that the pressure exerted on the fibers in the magazine 3 is taken over by this push element 35 is so that the push element 17 can pull backwards out of the fiber box 1. At this moment, the driver 22 moves around the fiber box 1 one step, i. H. to move a chamber 2 with respect to the table 14 so that the following chamber 2 is arranged in front of the fiber magazine 3 and the cycle described in the previous lines is repeated. This is repeated until the fiber magazine is exhausted and a subsequent fiber box 1 is fed in without interrupting the action of the machine.

It is readily apparent from the predicted that the solution according to the invention gives the brush manufacturing machine a large degree of independence, so that only occasional intervention is required to replace the fiber box 1.

The transition to a different fiber length requires a suitable height adjustment of the bottom 32 of the fiber magazine 3 and a corresponding displacement of the table 14, the further interaction of the fiber container with the fiber magazine 3 being made possible by the fact that the height of the recesses 30 and 31 of this fiber magazine is greater is than that of the push element 17th

Figures 7-12 relate to an embodiment of the system according to the invention essentially corresponding to the example described in the previous lines, but the fiber box 1 can remain in the machine if desired thanks to the fact that it is equipped with cassettes 37, which are shown below have excellent edges 38 and 39 which cooperate with recesses 40 and 41 of the walls 42 of the fiber container, while the cassettes 37 are held in the correct position in relation to the fiber box 1, for example by a stop 43 on the one hand and one with an incision 45 in the bottom 5 of the fiber container cooperating projection 44 on the other hand.

Each cassette is provided with the aforementioned recesses 18 and 19, and its open end can expediently be closed with a slide 46, which can be removed after the cassette has been arranged in the fiber box 1.

The operation of the device according to Figures 7-12 is similar to that of the device described above, with the difference but that only the cassette can be filled with fibers elsewhere and can be placed in the fiber container on the spot of the brush-making machine, which in certain cases not only increases the independence of the machine significantly, but also significantly simplifies and facilitates the loading of the same with fibers becomes.

However, in this case too, nothing prevents the entire fiber box 1 from being replaced by cassettes 37.

The implementation of the system according to the invention explained in FIGS. 13-16 is a vertically arranged fiber box 1, the table 14 and the attachment 15 being mutually adjustable with respect to the fiber magazine 3 and cassettes 37 one above the other in a similar manner in the fiber container as in the procedure according to Figures 7-12, but with the slide 46 arranged on the side.

The mode of operation of the device in question essentially corresponds to that of the device described above and therefore requires no further explanation.

Of course, a fiber container without cassettes 37 can also be used in the present case with vertically arranged fiber containers. The version with cassettes is simpler and therefore preferable in practice.

Figures 17 and 18 explain how the feeding of a double fiber magazine 3, 47 with a vertical fiber container takes place according to Figures 13-16.

Figures 19-22 relate to a circular fiber box 1, the up and down movable table 14 consisting of a circular disc with a standing edge 48 interrupted in place of the fiber magazine 3, while the fiber box 1 consists of a circular plate 49 with several on it arranged chambers 2, each chamber in turn consisting of side walls 50-51 with recesses 18 and 19, an end wall 52 with a passage 53 for a pushing element 53, and a slide 54 which can be removed after the fiber container has been arranged on the table 14.

In the present case, the push element 17 is fastened to the end of a rod 55 bent at right angles, which in turn is fastened to the end of the piston rod of a pressure cylinder 56.

Here, too, the mode of operation of the device in question corresponds approximately to that of the device according to the embodiment described in the preceding, with the difference that the fiber container each time by means of a suitable mechanism not shown, such as. B. a locking gear is rotated one step.

The method of operation according to FIGS. 23 and 24 is a variant of the method of operation according to FIGS. 19-22, the table 14 simply consisting of a circular plate, whereupon the fiber container is arranged with suitable means, not shown, and from the plate 49 with the _fifth There are walls 50, 51 and 52, but the sliders 54 are replaced by a ring 57 which is provided with a pivotable part 58 in order to allow the fibers to be ejected in place of the fiber magazine 3.

₁₀ In Figure 25 is schematically shown an inventive circular fiber box 1 also can be loaded with appropriate cassettes 37, while illustrated by Figure 26 such as the 1 ₅ feed of a double fiber magazine 3, 47 can take place with a large degree of independence from circular fiber containers.

The invention is of course in no way limited to the modes of implementation described in the previous _two rows and explained by the accompanying drawings, but is suitable for the most varied of modifications, additions and adaptations thereof in terms of shape and dimensions, ₂₅ provided, of course, that the scope of the invention is not exceeded becomes.

Claims (23)

1. Bristles feeding device for brush making machines equipped with a fibre magazine, along which the driving device moves to and fro, consisting of a number of fibre packets, and also of steering means in order to feed these fibre packets the one after the other to the fibre magazine and of pushing means in order to slide each fibre packet selected by the steering means into the fibre magazine, characterized in that these fibre packets are arranged in fibre chambres of a common fibre case, which can be slid step by step by the also common steering means in order to arrange these fibre packets the one after the other in front of the fibre magazine, after which these fibre packets are slid the one after the other in this fibre magazine by the also common pushing means.

2. Bristles feeding device according to claim 1, characterized in that the aforesaid fibre case comprises a bottom, two end walls, a number of intermediate walls for the division of the fibre case in a number of fibre chambers, a side wall and amovable means for forming a provisory side wall arranged near by the second side of the fibre case.

3. Bristles feeding device according to claim 2, characterized in that the aforesaid provisory wall is a sliding panel, which can be slid at once through the aforesaid fibre chambers.

4. Bristles feeding device according to claim 1, characterized in that the fibre case effectively consists of a bottom, two end walls, a number of intermediate walls for dividing the fibre case into the aforesaid chambers and of a number of fibre cases, each of which cooperates with a chamber.

5. Bristles feeding device according to claim 1, characterized in that the fibre case effectively consists of two side walls connected together by a bottom, of an upper wall, of a number of side walls for dividing the fibre case in a number of fibre chambers, of a side wall and of a provisory side wall arranged near by the second side, consisting either of a common sliding panel for all fibre chambers or of a sliding panel per chamber.

6. Bristles feeding device according to claim 1, characterized in that the fibre case effectively consists of two side walls connected together by a bottom, of an upper wall and of a number of intermediate walls for dividing the fibre case into a number of chambers, and of a number of fibre cases each of which cooperates with a chamber.

7. Bristles feeding device according to claims 4 or 6, characterized in that each case consists of a U-shaped chamber at the second end, consisting of a bottom, of two side walls, of an end wall and of a provisory wall in the shape of a sliding panel.

8. Bristles feeding device according to claim 1, characterized in that the fibre case effectively consists of a circular bottom, of a number of fibre chambers consisting of two side walls, radially arranged on the bottom, of an end wall arranged nearly the center of the fibre case and of a provisory wall situated near by the circumference of same, consisting for instance of a sliding panel.

9. Bristles feeding device according to claim 1, characterized in that the fibre case effectively consists of a circular bottom carrying radially arranged fibre chambers and of a number of fibre cases, each of which is formed by a U-shaped chamber consisting of a bottom and cooperates with the aforesaid chamber, and of two side walls, of an end wall located nearly the centre of the fibre case and of a provisory wall, for instance in the shape of a sliding panel, located nearly the circumference of same.

10. Bristles feeding device according to one of the preceding claims 5 or 6, characterized in that in the case of brush manufacturing machines with two fibre magazines two fibre cases standing back to back are provided for.

11. Bristles feeding device according to one of the preceding claims 8 or 9, characterized in that in case of brush manufacturing machines with two fibre magazines two fibre cases of the aforesaid kind are arranged back to back, whereby the fibre chambers near by the circumference of the fibre case are arranged perpendicularly to its diameter and each fibre chamber consists of a side wall and two end walls, with which a U-shaped case can cooperate, and this U-shaped case in its turn consists of two side walls, a bottom, an end wall and a provisory end wall in the shape of a provisory end wall equipped with a sliding panel.

12. Bristles feeding device according to claims 4, 6, 7 or 9, characterized in that each case is preferably provided in the side walls with a rib or with a groove which should cooperate with a corresponding groove or rib of the various fibre chambers of the fibre case.

13. Bristles feeding device according to claims 4, 6, 7 or 9 or 13, characterized in that each case shows at the front a stop cooperating with a corresponding stop in the fibre case properly speaking, whilst it shows at the back for instance a small projection, which cooperates with a small cavity in the bottom of the fibre case for positioning each case in relation to same.

14. Bristles feeding device according to claim 1, characterized in that the pushing means consist of a pushing component fixed at the end of the piston rod of a pressure cylinder, whereby this pushing component can be slid through this passage in each fibre chamber, and that in inner sides opposed to one another of the side walls of this fibre chamber longitudinal grooves forming a guide for the pushing component are provided for.

15. Bristles feeding device according to claims 4, 6, 7 or 9, characterized in that the pushing means consist of a pushing component fixed at the end of the piston rod of a pressure cylinder, whereby this pushing component can be slid in each fibre chamber through the corresponding passage and through an aperture in the end wall of the case of this fibre chamber in this case, and that in the inner sides opposed to one another of this case longitudinal grooves are provided for which form a guide for the pushing component.

16. Bristles feeding device according to claim 14 or 15, characterized in that the pressure cylinder concerned is fixed on a projection which is aligned with the fibre magazine of a table carrying this horizontally arranged fibre case.

17. Bristles feeding device according to claim 14 or 15, characterized in that the pressure cylinder concerned is fixed on a projection of a table carrying the fibre case.

18. Bristles feeding device according to claim 1, characterized in that in case of lying fibre case, the under side of the bottom of same shows a number of projections, the distance between which corresponds to the width of a fibre chamber, and that the steering means concerned consist of a pressure cylinder, whereby the free end of the piston rod of same shows a driving device cooperating with the aforesaid projections.

19. Bristles feeding device according to claim 1, characterized in that in case of a lying fibre case, same is provided with longitudinal ribs or longitudinal grooves, the purpose of which is to cooperate with corresponding guides of a table arranged on the brush manufacturing machine or nearly same.

20. Bristles feeding device according to claim 18, characterized in that on a brush manufacturing machine or nearly it a table is arranged, which effectively consists of two guides, the purposes of which is to cooperate with the fibre case in relation with its step by step displacement along the fibre container of.the machine, whereby this table shows on the side of the fibre case provided with a provisory side wall a vertical wall, which after removal of this provisory side wall of the fibre case takes over the function of same.

21. Bristles feeding device according to claim 1, characterized in that in case of a vertical fibre case, this is carried by a table and that the steering means concerned consist of a pressure cylinder, the purpose of which is to move this table in the vertical direction.

22. Bristles feeding device according to claim 8 or 9, characterized in that the pushing means consist of a pushing component fixed on the end of the piston rod of a pressure cylinder mounted on a table, which table is not the same as the table carrying the circular fibre case, whereby the last named table shows a raised edge which is provided with an aperture in the area of the fibre magazine.

23. Bristles feeding device according to claim 8 or 9, characterized in that the fibre case is fixed in an also circular table, whereby as a provisory end wall a circumferential ring is provided for with a pivotable or removable part.

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