DE2556710A1 - AUXILIARY DEVICE FOR BRUSH PRODUCTION, IN PARTICULAR FOR BRUSH PRODUCTION - Google Patents

Description

Auxiliary device for the manufacture of brushes, in particular for

toothbrush production.

The invention relates to an auxiliary device for the production of brushes, especially for toothbrush production, which is connected upstream of a brush drilling and / or tamping machine.

In the manufacture of brushes, the brush bodies are often box-shaped after their manufacture, e.g. in injection molding machines Containers or the like. recorded. The next processing step is then the drilling of holes to accommodate tufts of bristles. The brush bodies are often done by hand removed from the containers and clamped in the vices of the brush drilling and tamping machine. This is especially true for small ones Brushing is particularly cumbersome and time-consuming because of the high throughput speed.

or There are already brush boring and / or tamping machines where the brush bodies are placed in upstream magazines and are automatically removed from there. Even with these machines however, the magazines must be loaded in the correct position by hand.

One could also try to address the aforementioned problems by that one per se known sorting devices the magazines upstream of brush manufacturing machines. The brush bodies of toothbrushes, for example, could be placed in such sorting devices be thrown in unsorted and they would be out of there by this sorting device in the prescribed position.

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transported. However, this would have the major disadvantage that the toothbrush body, in particular because of the relatively long residence time in such a sorting device, damage to its surface received, so that they no longer come into question for a perfect production or the scrap when using such Sorting equipment becomes too high. This danger exists especially with very elongated, possibly also in Brush bodies specially designed with their longitudinal profile, such as toothbrushes, but also with brush bodies somewhat simpler forms have a similar problem,

The object is therefore to create an auxiliary device which, while avoiding the aforementioned disadvantages fine connection between a dispensing point for brush bodies, e.g. an injection molding machine on the one hand, and brush drilling and tamping machines, on the other hand, and thereby forming these brush bodies the brush making machines in a predetermined position and essentially in a continuous manner Production flow feeds. Manual intervention by operators should be avoided as far as possible.

To solve this problem, it is proposed in particular that the auxiliary device according to the invention have a receptacle for the brush body and one engaging in it

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Removal and transport device, with at least one position control device within the transport path and at least one position correction device is provided, which may be followed by one or more magazines are. With such an auxiliary device, a mechanical connection between an injection molding machine od. for the manufacture of the brush body and a brush drilling and tamping machine are created, in which case in advantageous Manual intervention can be omitted. Among other things, this also enables a faster processing sequence for brushes can be achieved.

The removal and transport device expediently has a circulating transport belt or the like with receiving projections od. The like. For the brush body. The brush bodies stored in the receptacle can thereby also can be easily removed from a disordered position, with a pre-sorting already being carried out with regard to their position will.

This pre-sorting is still favored if the storage Take-off projections have an approximately S-shaped cross-section, with the central area as a support and the upper part as System for the brush body is provided and wherein the lower extension forms an insertion guide and the formed Receiving space is dimensioned for a single brush body.

A secure contact of the brush bodies on the receiving projections can be achieved if the transport plane is arranged pivoted out of the vertical position at least in a direction perpendicular to it, preferably by an angle of about 10 to k5.

According to a further feature of the invention, the transport plane can also be arranged pivoted to the side in its plane be, preferably at an angle ß of about

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10 to 30 °, with the receiving projections at their laterally downward facing end a stop od. Like. Plant for the brush body. The brush bodies can as a result, they can be ejected from the transport device in a particularly simple manner, namely by gravity.

Preferably, however, at the end of the transport path on the transport device, a preferably transverse to Transport direction movable ejector be arranged. This ejector is expediently a Upstream control device, which preferably has a slide whose brush body faces The end face has an opening which is dimensioned so that an end that is narrower than the other end Brush body fits into it. Brush bodies, particularly toothbrush bodies, that are "correct", i.e. H. with her narrow Point the end to the slider, will be white after the control. challenged while upside down body of ejected from the slide.

A development of the invention provides that the example passed through the aforementioned control device ejected brush body into a return channel which is assigned to the control device, the inlet and the outlet of the return channel on the same side of the transport device or the receptacle flows out. The brush bodies are thereby turned and thus in the correct position of the transport device or fed back to the receptacle.

The brush bodies coming out of the transport device can optionally also be rotated about their longitudinal axis so that a further position correction is necessary. For this reason the ejector is convenient a position control device connected downstream. This advantageously has a diaphragm opening, in front of the one position coordinated with respect to the diaphragm

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plane is provided in such a way that when the brush body is in the correct position, it can pass through the panel and is stopped in a twisted position.

In a further embodiment of the invention can - in the transport direction seen - in front of the control panel in its edge area a sensor or the like. Be arranged, which is preferably is connected to an electrical switch, which in turn is expediently used to trigger a position correction is provided.

If necessary, several ejections can be carried out in the course of the transport route, preferably within a horizontal route. Devices can be provided which or with control panels. The like. Cooperate and each of which has a receiving magazine is downstream. This can be especially true if the machining speed is high be beneficial.

Additional refinements of the invention are given in the further. Subclaims listed. Below is the invention with its essential details with reference to the drawing explained in more detail.

It shows very schematized

1 shows a side view of an auxiliary device according to the invention,

2 shows a removal and transport device with a return channel,

3 shows a laterally inclined to the ejection side Transport device,

Fig. H

and 5 e ± n toothbrush magazine with level control device as well

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Fig. Ο the magazine shown in Pig5 in side view, 7 shows a control and ejection device,

FIG. 8 shows a slide face of that shown in FIG Control and ejection device,

9 shows a toothbrush body,

Fig. 10 shows a guide channel in side view and

11 in cross section,

12 shows a ratchet drive,

13 shows a pivotable feed,

Fig. I4 a cross section as well

15 shows a plan view in the area of several receiving projections the transport device,

16 shows a removal and transport device with a he thinks

17 shows a transport device with several position corrections turistic aids,

18 shows a side view of two receiving projections connected to a transport chain,

19 shows a position control device,

FIG. 20 is a view of the position control device corresponding to FIG. 19 with sensor, from the feed side and

21 in side view,

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Pig · 22 a Pig. 20 corresponding view, but here with a diaphragm-like sensor,

Pig. 23 a position control and correction device in the longitudinal and

Pig. Zk in cross section,

Pig. 25 an auxiliary device according to the invention with several Ejection and control devices,

Pig. 26 is a partial view of the diagram shown in Pig. 25 device shown in top view,

Pig. 27 is a partial view of a conveyor belt with control panels for a light barrier and

Pig. 28 shows a cross section of this conveyor belt with an indicated light barrier.

In Fig. 1, an embodiment of an auxiliary device 1 according to the invention for the manufacture of brushes is shown. In particular, toothbrushes 2 are processed here. The auxiliary device 1 according to the invention is particularly useful as a connecting link between a manufacturing machine, not shown here, for brush bodies, e.g. B. an injection molding machine and a brush drilling and optionally tamping machine 3 ”is provided. After their manufacture, the brush bodies h are located in a receptacle 5 in which a removal and transport device 6 engages (see also FIGS. 16 and 17). The brush bodies h are grasped by approximately horizontally oriented receiving projections 71 which are fastened to a conveyor belt 8 and transported out of the receiving container 5.

It is essential in the auxiliary device 1 according to the invention that the toothbrush bodies h are fed to the brush drill 3 in the correct position in order to ensure trouble-free loading

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to ensure workflow. When the brush bodies k are removed from the receptacle 5, a certain position pre-sorting is achieved. The toothbrush body must therefore be turned over accordingly The brush bodies are thereby fed in the correct position to the transport device 6. Brush bodies 4, which then come to lie on the receiving projections 7 pivoted a little about their longitudinal axis, can either be assisted in position correction, e.g. by a slide shown in FIG 12 or by means of resilient wires 13 (Fig. 14), but if necessary the wires 13 can also be arranged in such a way that they cause the brush bodies 4, for example, protruding over the receiving projections 7 (Fig. 17 ).

In order to facilitate the correct positioning of the brush bodies by the receiving projections 7, they can also use the have an approximately S-shaped cross-section recognizable in FIG. The middle area is as support 14 and the upper part provided as an attachment 15 for the brush body 4 · the lower one to the conveyor belt 8 pointing extension 16 forms an introduction. The receiving space 17 thus formed is dimensioned for a single brush body 4 in each case. If necessary, these receiving projections 7 one to the profile of the contact side of a z. B. toothbrush body have adapted support surface.

For the conveyor belt 8, both transport chains # (Fig, 18) as well as one or more textile-plastic or the like. Lanes may be provided. 15 shows a conveyor belt for this purpose 8, which is riveted to a textile or plastic sheet receiving projections - here according to Fig. 14 -

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having·

The control device 20 shown in FIG. 7 can also be provided in front of the ejection device 19, which is provided approximately at the upper end of the conveyor belt 8 and is still to be described.This has a slide 21, whose end face 22 (FIG. 8) facing the brush body k has an opening 23

In has, which is dimensioned so that the setting for * e ^ir FIG · shown toothbrush body 2 fits with its narrower end, while the other end 25 bears against the end face. During each control process, the slide 21 is moved towards the brush body k , with the end 25 of the brush bodies facing the end face 22 being ejected.

As already mentioned above, an ejection device 19 which can be moved transversely to the transport direction is arranged on the transport device 6 at approximately the end of the transport path. incoming brush bodies h then pass into a channel 26 (cf. FIGS. 10 and 11), the cross section of which is matched to a brush body. This can prevent the brush body from twisting within the channel 26.

In particular in FIG. 16 it can still be seen that the transport plane of the conveyor belt 8 is pivoted from the vertical position in a direction perpendicular to it. Preferably, an angle o <of about 10 to h5 ° is possible . This inclined position allows the brush bodies to be stored more securely in their receiving projections. In addition to this inclined position, the transport plane can also be pivoted to the side, as can be seen from FIG Gravity can fall into the channel 26. At least the ejection can be supported thereby.

The feed movement of the conveyor belt 8 is expediently carried out step by step »and is based on the distance between the

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Accepted steps 7 matched. As a drive, for example the ratchet lock 28 shown in FIG. 12 may be provided. In addition, it is advantageous if the drive speed of the conveyor belt 8 is infinitely variable, so that the feed rate optimally matches the performance of the brush tufting machine 3 can be customized

If necessary, a further position control device 20a can be installed in the connecting path, which preferably runs obliquely downward from above, between the ejector device 19 and a magazine upstream of the brush drill 3; i) be provided · Brush bodies k _t which are not in the correct position are either a container 30 or a return channel z. B, 9 supplied. The aiohr-shaped receptacle 31 of the control device 20a can for this purpose be pivoted downwards with its rear end 32. The control device 20a is shown in detail in FIGS. 19 to 22. It has a diaphragm opening 33 , in front of which a guide plane 35 is provided, the position of which is coordinated with respect to the diaphragm 3 ^ .If a toothbrush body 2 shown here, for example, is in the correct position, it can pass through the diaphragm opening 33, whereas the toothbrush body 2 a shown in dashed lines on the Aperture 3 ^ rests and is held back. So that a correctly positioned brush body can pass the control device 20a unhindered, a recess 36 is provided in the feed plane 35, which is especially adapted to the shape of a toothbrush body. In front of the control panel 3 **, seen in the transport direction, a sensor 37 is arranged in its edge area. This is preferably connected to an electrical switch 38, which in turn is expediently provided for triggering a position correction or a return, for example into a return channel 9. Such a sensor 37 can be designed as in FIGS. 20 and 21, for example. The sensor 37 is angular, the

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one leg forms the actual sensor and passes through a slot in the upper central area of the panel 34. At plant a brush body this sensor is swiveled and thus the switch 38 is also actuated. If necessary, the sensor 37 also have the shape shown in FIG. 22, both the upper and the lateral edge regions of the diaphragm 34 are covered. Inclined brush bodies can also be used to trigger a position correction with a sensor 37a of this shape to serve.

23 and 24 show a somewhat modified embodiment of a control device 20 a. The toothbrush body 2 is stored in a tubular receiving container 39. This is seen in the transport direction, rotatably mounted in front of the screen 3k about its longitudinal axis. Its receiving cavity ko is dimensioned in such a way that a toothbrush body 2 located therein is mounted in a rotationally fixed manner. In one introduced in the wrong location toothbrush body 2 as shown in FIG. 23, thus the switch can be a positional be made correction 38 by the receptacle 39 by 180 about its longitudinal axis and thus also to that of the tooth brush body 2 rotated to the response will. The toothbrush body 2 can then pass through the aperture 33 unhindered. FIG. 2k shows that a toothed rack 4i, for example, can be provided as the rotary drive, which rack cooperates with a toothed ring 42 which is connected to the receptacle 39.

After passing the control device 20a, the brush bodies get into the magazine 29 »from which they can be processed. processing in the brush boring and tamping machine 3 can be automatically removed. In Fig. 1 is on the left, respectively a level meter each at the upper and lower end areas

43 recognizable. With this level meter 43 the supply can drive quantity of the brush body can be regulated. FIG. 4 shows a magazine 29 'in which light barriers act as a fill level meter

44 are provided. However, those in FIGS. 5 and 6 can also be used

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Ftillstandsmessers 43 shown are used, with each switches 45 provided with sensors are arranged at the upper and lower end regions of the magazine 29. How nice As mentioned above, the level meters can be used to control the amount of feed of the brush bodies the transport speed of the conveyor belt 8 can be changed or it can also be at a maximum level the ejection device 19 on the removal and transport device 6 can be switched off.

25 and 26 show a modified version according to the invention Auxiliary device 1 · There are several ejection devices within a horizontal route along the transport route 19, which work together with control panels. Each of these control panels 46 is a Receiving magazine 29 connected downstream. Toothbrushes twisted about their longitudinal axes can be controlled by the control panels 46 body 2 to be sorted out. If necessary, the discharge devices 19 at the same time also serve as a control device, whereby they according to the execution example in Fig. 7 are formed. In this case, the brush bodies are correct when their wider ends facing the ejectors 19. These bodies are fed through the slide to the downstream magazines while upside-down toothbrush bodies engage with their narrower ends 24 in the opening 23 and thereby maintain their position on the conveyor belt. These brush bodies are then attached to the control panels 46 passed by

If necessary, with several receiving magazines (Fig. 13) the upstream feed to the individual magazines can be designed to be pivotable.

To check the position of the brush bodies, as in FIGS 28 recognizable, one or more light barriers 47 may also be provided. For example, one is in the area of

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2c ς D η λ α opaque ^ conveyor belt 8 arranged, w £ aexRLnsües special a ^ textile or plastic web 48 is provided a little above the contact area of the brush body on the receiving projections 7, a hole 49 is provided in the web 48 this hole 49 is provided in the area of the brush neck 52, because this enables good position detection. The diameter of the hole 49 is smaller than the thickness of the brush body in this measuring area. A correctly positioned toothbrush body 2 thus covers this hole 49.Behind the textile or plastic web 48, a fixed light source 50 is provided, the light beam of which is oriented transversely to the direction of transport of the conveyor belt 8 . B. a photocell 51 is arranged such that with a hole 49 located in front of the light source 50 in the case of an upside-down toothbrush body, the light beam can rerreiclieii the photocell 5. For example, the ejection device 19 connected downstream in the transport direction could then be blocked as a result. If necessary, several of the above-mentioned light barriers can be provided in the course of a brush body.

The auxiliary device 1 according to the invention described above can be used particularly advantageously as a connecting link between a brush body manufacturing machine and a brush body

_t drilling and / or tamping machine.,
drill DZW. Use V. The entire transport and position control process is advantageously carried out automatically without manual intervention. Nevertheless, in the event of malfunctions, for example, the machines can be operated as usual, which avoids a downtime of the entire production. Depending on the shape of the brush body, the number of position control or correction devices can also be reduced, which is possible in particular with symmetrical body shapes. However, the auxiliary device 1 according to the invention offers in particular with several control devices ^ equipped as described above ^ in an advantageous Veise also the possibility of a

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ORIGINAL INSPECTED

largely trouble-free processing of complex body shapes such as toothbrush bodies.

The auxiliary device according to the invention is, for example, also used in the production of hand washing brushes, hairbrushes, Shoe and clothes brushes or the like. elongated brushes are an advantage usable.

All of the features shown in the description, the following claims and the drawing can be used individually as well as being essential to the invention in any combination with one another.

- patent claims -

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Claims (1)

PATENTANWÄLTE _{78 FREIBURG L BR} . DIPL-ING. H. SCHMITT oBiiiÖHwaie. ih DIPL-ING. W. MAUCHER «MW> n, (07β1) 7-773 Anton Zahoransky 2556710 Special machine factory S 75 463 T86T Toatnau
Schwarzwaldstrasse 8 Claims Auxiliary device for brush production, especially for toothbrushes or the like. elongated brush, which is connected upstream of a brush drilling and / or tamping machine, characterized in that the auxiliary device has a receptacle (5) or the like. Feed element for the brush body (4) and a removal and transport device (6) engaging therein, that within the transport path of the brush body at least one position correction and / or separation device (20) is provided and that this has at least one delivery station, e.g. ein.Magazin ^ »Anchor point. is downstream. distant. Auxiliary device according to Claim 1, characterized in that at least one position control device within the transport path (20) is provided, which may have a position correction device controls. Auxiliary device according to claim 1 or 2, characterized in that the removal and transport device (6) is a rotating Conveyor belt (8) or the like. with receiving projections (7) or the like. for the brush body (4), expediently the transport device is arranged substantially vertically and that its receiving projections (7) or the like. in horizontal Direction oriented. 709826/0033 Auxiliary device according to Claim 3, characterized in that the receiving projections (7) are approximately S-shaped Have cross-section that the central area as a support (14) and the upper part as a plant (15) for the brush body (4) it is provided that the lower port set (16) forms an insertion guide and that the formed Receiving space (17) for a single brush body in each case (4) is sized. / 2 7098 2 6/0033 5. Auxiliary device according to one or more of Claims 1 to 4, characterized in that the bearing surface of the receiving projections (7) is adapted to the profile of the bearing side of a brush body (4). 6 » Auxiliary device according to one or more of claims 1 to 5» characterized in that the conveyor belt (8) has at least one conveyor chain (i8) to which the receiving projections (7) are attached. 7 · Auxiliary device according to one or more of the claims 1 to 5 »characterized in that the conveyor belt (8) has one or more textile, plastic or similar tracks (48). 8 · Auxiliary device according to one or more of the claims 1 to 7 »characterized in that the transport level of the conveyor belt (8) pivoted from the vertical position in a direction perpendicular to it is, preferably at an angle c <of about 10 to 45 °. 9 · Auxiliary device according to one or more of Claims 1 to 8, characterized in that the transport plane is arranged laterally pivoted in its plane, preferably at an angle β of about 10 to 30 ° and that in front of the laterally downwardly pointing ends of the receiving projections (7) a stop or similar system (27) is provided. 10. Auxiliary device according to one or more of the claims 1 to 9 »characterized in that the feed movement of the conveyor belt (8) step by step, to the distance of the Receiving projections (7) are matched, and that a latching device is preferably used as the drive for the conveyor belt (8). lock (28) is provided. / 3 709826/0033 11. Auxiliary device according to one or more of claims 1 to 10, characterized in that approximately at the end of the Transport path on the transport device (6), an ejector device that is preferably movable transversely to the transport direction (19) is arranged. 12. Auxiliary device according to claim 11, characterized in that in front of the ejection device or at this itself a control device (20) is provided, which preferably has a slide (21) whose brush body (^) facing end face (22) has an opening (23), which is dimensioned so that one end (2 ^) of a brush body is narrower than the other end (k) fits in. 13 · Auxiliary device according to one or more of the claims 1 to 12, characterized in that the control device (20) expediently in the receiving container (5) opening return channel (9) is assigned, and that preferably the inlet (1O) and the outlet (11) of the return channel (9) on the same side of the transport device (6) or the receptacle (5) flows out. " ¹ Sh * auxiliary device according to one or more of claims 1 to 13 »characterized in that the ejection device (19) is followed by a position control device (20 a). 15 * Auxiliary device according to one or more of the claims 1 to 14, characterized in that the control device (20 a) has a diaphragm opening (33) that in front of this one regarding the aperture (3 * 0 in its position coordinated guide plane (35) is provided in such a way that with the correct position of the brush body (4) this can pass through the aperture (3 * 0 and when rotated Location is held up. 709826/0033 - S * 2556 7 16. Auxiliary device according to claim Ik and 15, characterized in that - seen in the transport direction - a sensor (37 »37 a) or the like is arranged in front of the control panel (3 * 0 in the edge region thereof, which is preferably equipped with an electrical switch ( 38), which in turn is expediently intended to cancel a position correction 17 · - Auxiliary device according to one or more of Claims Ik to 16, characterized in that a receptacle (39) is arranged in front of the control panel (3 * i) so that the brush body (k ) is in this is rotatably mounted and that the receptacle (39) is rotatable about the longitudinal axis of the brush body (k). 18. Auxiliary device according to one or more of the preceding claims, characterized in that the front of the Control panel (3 * 0 arranged feed with its rear End in a return od, the like. Is preferably pivotable downwards. 19 »Auxiliary device according to one or more of the claims 1 to 18, characterized in that between the ejection device (19) "and the control device (20 a) a channel (26) which is matched in cross section to a brush body (4) is provided. 20. Auxiliary device according to one or more of claims 1 to 19 »characterized in that within the * Transport path of the brush body (4) one or more position correction aids, elimination aids or the like, are arranged, e.g. B. Wires (13) »Slider (12) etc. (Pig. 13 and 17). 21 · Auxiliary device according to one or more of the claims 1 to 20, characterized in that the connection / 5 709826/0033 away "between the ejector (19) and the magazine (29) runs obliquely downwards from above. 22. Auxiliary device according to one or more of claims 1 to 21, characterized in that in the course of the Transport route, preferably a plurality of ejection devices (19) provided within a horizontal route that work together with control panels (46) or the like and each of which is followed by a receiving magazine (29). 23. Auxiliary device according to one or more of the claims 1 to 22, characterized in that on the magazine (s) Level meters (43) are provided. 24. Auxiliary device according to one or more of the preceding Claims, characterized in that one or more light barriers for scanning the filling level of the magazines (44) are provided. 25 · Auxiliary device according to one or more of the claims 1 to 23, characterized in that one or more switches (45) are provided for scanning the fill level are. 26. Auxiliary device according to one or more of claims 23 to 25, characterized in that the level meter (43) with the ejection devices (19) in connection stand in such a way that the associated ejection device is switched off at a maximum fill level will. 27. Auxiliary device according to one or more of claims 1 to 26, characterized in that with several up- took magazines the upstream feed od. Like. To the individual magazines is designed to be pivotable. 709826/0033 28. Auxiliary device according to one or more of the claims 1 to 27, characterized in that one or more light barriers for checking the position of the brush bodies (4) (47) are provided « 29 · Auxiliary device according to one or more of the claims 1 to 28, characterized in that the conveyor belt (8) has at least one opaque belt which runs along in the direction of transport Textile, plastic or the like tape (48), that? receiving projections (7) or the like. Brush bodies (4) resting on it have a hole (4 ° -) and that within the A fixed light barrier (47) or the like, which is aligned with this in the measuring area, is arranged on the transport path. 30. Auxiliary device according to claim 28 or 29, characterized in that that in the case of a conveyor belt (8) provided for toothbrush bodies (2), the holes (49) are in each case in the area of the brush neck (52) and that the diameter of which is smaller than the thickness of the brush neck or the part of the burst lying in the measuring range enbody · Auxiliary device according to one or more of the claims 1 to 30, characterized in that several light barriers (47) are provided for position monitoring and that this via a logic circuit with an ejector facility are connected. Gu / H patent attorney 709826/0033