DE2914278A1 - BRUSH PRODUCTION MACHINE - Google Patents

Description

Brush making machine

The invention relates to a brush manufacturing machine which Has workpiece holders attached to a common bogie and machining stations attached to the machine frame or the like.

Such machines, also known as carousel machines, are already known Brush manufacturing machines, which, however, are still in particular with regard to the positioning of the workpiece holder Have disadvantages. This is the case with brush manufacturing machines of the type mentioned at the outset, in particular with a comparative one high number of processing stations or also workpiece holders, which is necessary for the complete processing or manufacture of brushes, with a considerable number Effort associated with getting a fast and at the same time sufficiently accurate positioning. The workpiece holder with the Namely, bogies form a comparatively high inertial mass, which makes a rapid positioning movement a considerable one Opposes resistance. As a result, the positioning drive provided for these positioning movements must accordingly be powerfully dimensioned.

Although it has already been suggested by the existing one Rotary movement of the bogie anyway deviating positioning movement only at the corresponding processing stations to be carried out separately. As a result, however, the positioning movement taking place in the direction of rotation of the transport is still carried out the aforementioned disadvantage exists that comparatively heavy masses - entire bogie with all work-

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piece holders υ. Like - with the then necessary, accordingly great effort must be moved. In addition, it is disadvantageous that also at processing stations a positioning movement takes place in which this is undesirable in itself, and in some circumstances also disruptive.

The object of the present invention is therefore to provide a brush manufacturing machine to create of the type mentioned, in which at least as far as possible avoidance of the aforementioned Disadvantages also comparatively fast positioning possible with little construction effort at the same time are, and the positioning takes place in accordance with the processing provided in each case at the processing station.

In order to achieve this object, it is proposed according to the invention in particular that the workpiece holders with respect to their positioning movements are independent of one another and that the drive transmission for these positioning movements as required takes place at one or more processing stations. Especially in the area of the drilling and / or tamping station can thereby advantageously position the workpiece holder with the brush bodies clamped therein take place without the other workpiece holders at other processing stations participating in the corresponding movements. The masses to be moved during positioning can thus be kept comparatively small Positioning movements can also be used with relatively small and less complex drives. High positioning speeds can also be achieved Realize with little effort. In addition, if necessary, at different processing stations also perform different work movements of the workpiece holder.

The axis of rotation of the bogie is expediently arranged approximately vertically, with the brush manufacturing machine preferably as a multiple machine, especially as a twin

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machine is trained. As a result, all processing stations can be easily accessed around the bogie on one level, for example be arranged around. A multiple machine, in particular a twin machine, has comparatively A favorable ratio between the processing and transport cycle is achieved with little effort.

A particularly advantageous embodiment of the invention provides that the drive of the workpiece holder for their longitudinal and preferably the transverse positioning movement, possibly also for the depth compensation positioning movement has at least one clutch drive element, which during the transport of the workpiece holder is (are) arranged and with these after their transport in front of a processing station, in particular drilling tools and / or tamping tools can be connected. This can the drive of the positioning movements take place independently of the transport movement of the bogie, so that thereby the mass to be moved is also significantly reduced. The one for processing stations that have corresponding positioning movements must be carried out, arranged drive can each after the independent transport movement couple the workpiece holder in front of the machining tools with the workpiece holder. This allows the drives be practically stationary attached to the machine frame.

The coupling between the respective positioning drive and the workpiece holders is expediently self-coupling and designed to be self-separating “It is practical automatically a connection of the positioning drives and the workpiece holder after a transport movement of the bogie.

According to a preferred embodiment, the workpiece holders are od on a slide. The like. Mounted, which is preferably about in the plane of the transport movement laterally displaceable on a workpiece holder carrier, and this in turn is mounted on the bogie so that it can be moved across it,

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This means that the workpiece holders are independent of the transport movement movable both in their direction and transversely thereto by the positioning drive.

The slide or the like is expediently driven via an angle lever mounted on the workpiece holder carrier, the has a run-on cam or the like at one leg end. As a result, the drive can be transmitted from one direction for both the longitudinal and the transverse positioning movement take place. This enables a favorable arrangement of the drive elements, e.g. below the bogie.

According to a further proposal according to the invention, cam disks and / or lifting drives are preferably used as positioning drives with servomotors or the like, the latter preferably with an in particular programmable control device are connected. Cam disks od. Like. Templates can because of their robust structure, and because they with The simplest means to maintain are to be used. Hoist drives, preferably with servomotors or the like, have against it the advantage that it is much easier to switch from one machining program to another is. It is also advantageous that in particular in a brush manufacturing machine that has both a drilling as also has a tamping station, parallel control of the servomotors or the like by means of a single control device can be done.

In the case of a drive transmission for the positioning movements, for example the transverse and lateral movement of one It is useful when the positioning drive is provided for the workpiece holder approximately in the transport direction Transverse positioning movement has a stroke compensation in the sense of a movement overlay of the longitudinal positioning movement. The drive for the transverse positioning movement runs parallel to the movement of the longitudinal positioning drive a lifting movement and at the same time, if necessary, a

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additional lifting movement with an intended transverse movement. This can be done in particular in the case of lifting drives with servomotors and a corresponding control device in their programming in a simple manner at the same time.

An embodiment of the brush manufacturing machine according to the invention provides that they have at least four processing stations or the like, preferably with a tamping station, a shearing station, has a grinding or rounding station and a brush body changing station and that is in the transport direction to the grinding or rounding station expediently connect a cleaning station and, if necessary, a stamping station. Such a brush making machine Allows practically complete processing from tamping the brush to the final stamping. Such a machine is particularly suitable for the production of brushes whose brush bodies are already provided with tuft holes. This is the case, for example, with toothbrushes and the like, their brush bodies made of plastic, the case.

For the processing of brush bodies without holes, it is useful if the tamping station has a drilling station in the direction of transport is connected upstream, then expediently the tamping tool and the drilling tool in parallel from one common control device are controlled or controllable.

In a further embodiment of the invention, each workpiece holder has at least two clamping devices for brush bodies these clamping devices are arranged next to one another in particular in the transport direction. This is particularly the case with the Machining of brushes with a comparatively low number of tufts is advantageous because this enables favorable parallel machining is possible at the same time from several brush bodies.

As a precise positioning aid, it may be advantageous if, for precise position adjustment when positioning, hole

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Templates and hole finders are provided, the hole finder preferably being fixedly connected to the workpiece holders and a hole template is provided on the tamping tool or tools and / or drilling tools. By means of this auxiliary positioning device minor positioning inaccuracies can be compensated for in a simple manner.

If necessary, the positioning movements and the like can be used Deflection and / or adjustment lever are transferred. This gives you the option of changing the leverage either to compensate for tolerances in the brush bodies or to produce brushes with different bristle fields. In the case of minor changes, this advantageously allows the control device to be reprogrammed for the Hoist drives or changing the cam disks can be avoided.

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

They show more schematically:

Fig. 1 is a plan view of a brush manufacturing machine according to the invention,

Fig. 2 is a side view according to the section line II-II in Fig. 1,

3 shows a side view of a workpiece holder carrier with workpiece holders and coupled positioning drive,

Fig. 4 is a plan view of a twin tamping station with a workpiece holder positioned in front for four brush bodies and

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FIG. 5 shows a plan view roughly corresponding to FIG. 1, but here additionally with a drilling station.

A brush manufacturing machine 1 shown in Fig. 1 has in the direction of rotation according to the arrow Pf 1 successively a changing station 2 for brush bodies or finished brushes, a tamping station 3, a shearing station k, a grinding or rounding station 5, a cleaning station '6 and finally a Stamping station 7 for stamping the brush body. The. Workpiece holders 30 for the brush bodies 8 are arranged at the outer ends of arms 10 belonging to a bogie 9. In an advantageous embodiment according to the invention, the aforementioned processing stations 2 to 7 are on the outer periphery of this bogie 9 relative to the workpiece holders 30 essentially stationary on the machine frame 11 or the like. attached. The transport movement by means of the bogie 9 takes place step by step, in the exemplary embodiment according to FIG. 1 in each case by a further rotation according to the arrow Pf 1 by approximately 60 °. In the tamping station 3, a stationary positioning drive 12 is preferably arranged below the level of the bogie, which is identified here in FIG. 1 by a dot-dashed area.

The positioning drive designated as a whole by 12 can be seen in FIG. 2. There is both a longitudinal positioning movement according to the arrow Pf 2 as well as a lateral positioning movement provided transversely thereto and according to the arrow Pf 3 also a Depth compensation provided for brushes with a curved component side. The workpiece holders3 0 are when the bogie is stationary 9 can be positioned independently of one another by means of the positioning drive 12. The positioning drive designated as a whole with 12 has for the individual positioning movements in the embodiment (Fig. 2) lifting drives 13 to 15 preferably with servomotors or the like. These linear actuators have coupling drive elements 16, which in the working position of the workpiece holder with coupling elements 17 of these in ■ drive connection stand. These couplings between the positioning drive and the workpiece holders 30 are self-coupling and

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self-separating 'trained. This means that the coupling elements 17 with a rotation of the bogie 9 without further measures of the clutch drive elements

16 can be separated or connected to these. The workpiece holders 30 are on a slide 18 or the like. mounted, which is laterally displaceable on a workpiece holder carrier approximately in the plane of the transport movement (arrow Pf 1) 19 and this in turn is mounted on the bogie 9 so as to be displaceable transversely thereto according to the arrow Pf 2. Fig. 3 can clearly be seen that for the lateral movement of the carriage 18, with the workpiece holder carrier 19 connected guides 20 are provided, which are fastened here essentially by two parallel to the workpiece holder carrier 19 Rails 21 and through guide sleeves attached to the carriage 18 through which the rails 21 pass 22 or the like. Are formed. A coupling element designed as an angle lever 23 is located on the workpiece holder carrier

17 is provided, which is connected with one leg end via a movable push rod to the carriage 18 and which has a cam 24 or the like at its other leg end. This run-up cam 24 is included expediently designed as a role.

In particular, the coupling of the coupling drive elements and the coupling elements 17 when the workpiece holder enters In front of a processing station, in particular a drilling or a tamping station, the workpiece holder 30 by means of springs 25 or the like. Is held in an initial position against stops or 26 a (FIG. 2). Even the clutch drive elements 16 of the lifting drives 13 to 15 are in the starting position, which is approximately with the Position of the coupling elements 17 in their initial position is aligned.

The lifting drive 14 for the lateral movement of the workpiece holder according to the arrow Pf 4 in FIG. 3 and the lifting drive 15 for the depth compensation (arrow Pf 3) are via angle lever 23 or 23 a with the carriage 18 or with the support frame connected for the workpiece holder carrier 19. Against

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the lifting drive 13 hits the workpiece holder carrier 19 practically directly for the longitudinal positioning movement (arrow Pf 2). Here too, however, a reversing lever, e.g. B. an angle lever od. Like. Be held in between. By means of this Deflection or adjustment lever can be used to easily adjust the transmission ratio between the drives and the Driven elements may also change, so that an adaptation to different brushes is possible is.

The lifting drives 13 to 15, which are preferably equipped with servo actuators or the like, are expediently equipped with a in particular programmable control device 28 connected. This can be seen in FIG. 5. With this brush making machine 1 a is, in addition to the processing stations 2 to 7 that can be seen in FIG. 1, a drilling station upstream of the tamping station 3. In this machine 1 a Positioning drives 12 are provided both at the drilling station 29 and at the tamping station 3. Using of lifting drives in particular with servomotors or the like. These can advantageously be paralleled by one Control device 28 are controlled, since the positioning is the same at both processing stations.

At the shearing station A, a relative movement is provided between the shearing tool 31 and the brush or brushes held by the workpiece holder, in particular in the transport plane. The actual shearing tool can be firmly connected to the machine frame 11. For this lateral movement, comparable to the lifting drive 14 (FIG. 2), a displacement drive, denoted overall by 32, can be provided, which moves the slide 18 carrying the workpiece holder 30 back and forth over the angle lever 23 according to the arrow Pf k. This lateral shifting movement is also independent of other work movements of workpiece holders. This also allows for a good adaptation of the

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Machining movements are possible depending on the machining carried out in each case. If necessary, you can also work on other Processing stations, for example at the cleaning station 6, etc., drives can be arranged, which there a favorable processing movement «? carry out. At these processing stations mentioned above, however, the relative movement can also be carried out by the processing tool itself. In addition to the essential advantage of the mutually independent movability of the workpiece holder 30, that only comparatively small masses have to be moved when positioning, moving and the like is still advantageous, that the machining movements at the respective station can be adapted to the different machining. It should be mentioned in that the drives for the positioning or displacement movements are controlled centrally by the control device 28 can be. This control device 28 is expediently programmable and can preferably be exchanged the program data carrier can be quickly converted to other brush types or shapes.

For precise position adjustment, especially when positioning Hole templates and hole finders can also be provided in a manner known per se, preferably one in each case Hole finder designed as a centering pin or the like, stationary with the workpiece holders 30 or with the slide 18 connected and a hole template is provided on the tamping tool or tools and / or the drilling tools. With this positioning aid minor positioning inaccuracies or vibrations within the carrier parts can be compensated for or eliminated.

The brush manufacturing machine 1 or 1 a carries on each arm 10 of its bogie 9 two workpiece holders 30, wherein also the tamping station 3, the drilling station 29, the grinding or Rounding station 5 and the stamping station 7 each carry two processing tools, so that at the same time on one Processing station two brush bodies 8 or brushes 33 can be processed. This simultaneous parallel

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processing can reduce the ratio, especially with smaller brushes between processing time and downtime are more favorable. ■

In Fig. 2 is for so-called depth compensation, i. H. for a movement of the held brush body according to the arrow Pf 3, the lifting drive 15 is provided, which is on the machine frame 11 or the like mounted angle lever 23 a the entire, moves the workpiece holder carrier 19 with the carrier frame 27 carrying the slide 18. This support frame 27 can be slidably connected to the arm 10 of the bogie 9, for example in a telescopic manner. If one If depth compensation is provided, the clutch drive elements 16 or Coupling elements 17 in their radial extent at least so large that they can also be used with maximum depth compensation movement stay coupled.

Cams or similar templates can also be used as lifting drives, in particular for the positioning movements will.

The axis of rotation 35 of the bogie 9 is in the inventive Brush manufacturing machine 1 or 1 a arranged approximately vertically. This allows the processing stations arranged approximately in a plane around the bogie 9 at a favorable working height with good accessibility will.

The brush bodies 8 are preferably inserted at the changing station 2 via vertically arranged magazines, in which the brush bodies are layered on top of each other. The transfer to the workpiece holder 30 can be done by means of grippers take place, which swivels the brush body from the magazine into the workpiece holder by about 90, or it can the workpiece holder itself can also be swiveled up by about 90 ° for takeover.

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All of the features shown in the description, the claims and the drawing can be used individually or in any desired way Combination with one another be essential to the invention.

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Claims (1)

Claims Brush manufacturing machine, the workpiece holders attached to a common bogie, as well as has processing stations attached to the machine frame or the like, characterized in that that the workpiece holders (30) are independent of one another with respect to their positioning movements and that the drive transmission for these positioning movements as required in one or more processing stations (e.g. 3, 29, A, 6) 2. Machine according to claim 1, characterized in that the axis of rotation (35) of the bogie (9) is arranged approximately vertically is and that it is preferably designed as a multiple machine, in particular as a twin machine. 3. Machine according to claim 1 or 2, characterized in that the drives of the workpiece holder (30) for their Longitudinal and preferably transverse, possibly also the Depth compensation positioning movement has at least one clutch drive element (16) in each case, which when Transport path of the workpiece holder (30) is arranged and with these after their transport in front of a processing station, in particular drilling tools and / or Tamping tools,, are connectable. / 2 030044/0039
ORIGINAL INSPECTED A. Machine according to claim 1 to 3, - characterized in that that between the positioning drives and the workpiece holders self-coupling or self-releasing couplings are provided. 5. Machine according to one or more of claims 1 to A, characterized in that the workpiece holder (30) on a slide (18) or the like. Are mounted, which is preferably laterally displaceable approximately in the plane of the transport movement on a workpiece holder carrier (19) and this in turn is mounted on the bogie (9) so as to be displaceable transversely thereto is. 6. Machine according to claim 5, characterized in that the slide (18) or the like. And the workpiece holder carrier (19) have coupling elements (17), which with the coupling drive elements (16) of the positioning drive (12) can be coupled. 7. Machine according to claim 6, characterized in that the coupling elements (17) run-up cams (2A) or the like. have and are in the coupled position with the coupling drive elements (16) in drive connection. 8. Machine according to one or more of claims 1 to 71 characterized in that the carriage (18) or the like and the workpiece holder carrier (19) are in the starting position before positioning, are held against stops (26, 26 a), and that preferably springs (25) are used for this purpose. 9. Machine according to one or more of claims 1 to 8, characterized in that the coupling elements (17) in the starting position with their overrun cams (2A) or the like. approximately in the plane of the clutch drive elements (16) in whose initial position lie, and that the overrun cams (2A) are preferably formed by rollers, in particular ball bearings, and that the clutch drive elements (16) optionally have inclines or the like. 0300U / 0039 10. Machine according to one or more of claims 1 to 9, characterized in that the carriage (18) or the like. via a mounted on the workpiece holder carrier (19) Angle lever (23) is driven, which at one leg end has a stop cam (2A) or the like. 11. Machine according to one or more of claims 1 to 10, characterized in that as positioning drives Cam disks and / or lifting drives (13 to 15), preferably with servomotors or the like, are used, the latter are preferably connected to an in particular programmable control device (28). 12. Machine according to one or more of claims 1 to 11, characterized in that the positioning drive for the transverse positioning movement provided approximately in the transport direction of the workpiece holder (30), a stroke compensation in the sense of a movement overlay of the longitudinal positioning movement having. 13. Machine according to one or more of claims 1 to 12, characterized in that it has at least four processing stations or the like, preferably with a tamping station (3), a shearing station (A), a grinding or Rounding station (5) and a brush body changing station (2) and that is in the transport direction (Arrow Pf 1) to the grinding or rounding station (5), expediently a cleaning station (6) and possibly on it connect a stamping station (7). 1A. Machine according to one or more of Claims 1 to 13, characterized in that the stuffing station (3) has a Drilling station (29) is connected upstream in the transport direction and that the positioning drives for the tamping tool and the drilling tool is expediently controlled in parallel by a common control device (28) are or are controllable. 030044/0039 A 15. Machine according to one or more of claims 1 to 14, characterized in that each workpiece holder (30) has at least two clamping devices which are arranged next to one another in particular in the transport direction. 16. Machine according to one or more of claims 1 to 15, characterized in that at least at the shearing station (4) a drive (32) for moving the workpiece holder (30) is provided. 17. Machine according to one or more of claims 1 to 16, characterized in that for precise position adjustment When positioning and the like, hole templates and hole finders are provided, preferably in particular as Centering pins or the like. Holes finder designed fixedly connected to the workpiece holders (30) and a Hole template is provided on the tamping tool or tools and / or drilling tools. 18. Machine according to one or more of claims 1 to 17, characterized in that the positioning movements and the like are transmitted via deflection and / or adjusting levers, preferably with adjustable transmission ratio. - Description - 03Q0U / 0039