Method and device for the manufacture of scrubbing brushes and/or painting brushes

Abstract

A method for the manufacture of scrubbing brushes and/or painting brushes is provided, in which a processing pressure exerted by a processing tool (3, 4) onto a bristle holder (5) to be processed is determined by a pressure sensor (6), which has a pressure-recording surface (7), which is arranged behind the bristle holder (5) to be processed, in the operating direction of the processing tool (3, 4). In this manner, determination of the processing pressure is possible close to the bristle holder (5) to be processed.

Claims

1. A method for manufacturing at least one of scrubbing brushes (2) or painting brushes, the method comprising: processing a bristle holder (5) of at least one of a scrubbing brush (2) or a painting brush to be manufactured with a processing tool (3, 4) of a device (1) for manufacturing at least one of scrubbing brushes or painting brushes in a processing position (P), said processing tool being arranged between a pressure-recording surface (7) of a pressure sensor (6) and a processing tool (3, 4) of the device (1), and determining a processing pressure exerted by the processing tool (3, 4) onto the bristle holder (5) during the processing of the bristle holder (5) that is transferred onto the pressure-recording surface (7) by the pressure sensor (6).

2. The method as claimed in claim 1, wherein the pressure-recording surface (7) is arranged behind the bristle holder (5) in an operating direction (Pf.1) of the processing tool (3, 4).

3. The method as claimed in claim 1, further comprising determining a deviation between the processing pressure determined by the at least one pressure sensor (6) and a target pressure using a comparator (17), and automatically halting processing using a controller (18) if the deviation reaches a defined magnitude.

4. A device (1) for manufacturing at least one of of scrubbing brushes (2) or painting brushes, the device comprising: at least one processing tool (3) configured to process a bristle holder (5) of at least one of a scrubbing brush (2) or a painting brush to be manufactured; at least one pressure sensor (6) with a pressure-recording surface (7); and a processing position (P) for the bristle holder (5), said processing position is associated with the at least one processing tool (3, 4) and is arranged between the processing tool (3, 4) and the pressure-recording surface (7) of the at least one pressure sensor (6) such that a processing pressure exerted onto the bristle holder (5) by the processing tool (3, 4) is transferred onto the pressure-recording surface (7) and the pressure sensor (6) is configured to determine the processing pressure.

5. The device (1) as claimed in claim 4, wherein the pressure-recording surface (7) of the at least one pressure sensor (6) is arranged behind the processing position (P) for the bristle holder (5), in an operating direction (Pf.1) of the processing tool (3, 4).

6. The device as claimed in claim 4, further comprising at least one support (8) for the bristle holder (5) to be processed, the at least one support (8) is arranged in the processing position (P) associated with the at least one processing tool (3, 4), between the processing tool (3, 4) and the pressure-recording surface (7).

7. The device (1) as claimed in claim 6, further comprising a pressure-transfer element (9), which, when at least one of the support (8) or the bristle holder (5) is in the processing position (P), is arranged between the support (8) and the pressure-recording surface (7), or between the bristle holder (5) and the pressure-recording surface (7).

8. The device (1) as claimed in claim 4, further comprising a transport device (14) on which a plurality of supports (8) are arranged, and with which the supports (8) can be transported from one processing tool (3, 4) to a subsequent processing tool (3, 4), and a transport track (15), along which the supports (8) are transported with the transport device (14), extends between the at least one processing tool (3, 4) and the pressure-recording surface (7) of the at least one pressure sensor (6), and said pressure-recording surface is assigned to the processing tool (3, 4).

9. The device (1) as claimed in claim 4, wherein the at least one pressure sensor (6) is arranged on a frame (10) of the device (1).

10. The device (1) as claimed in claim 4, wherein the pressure-recording surface (7) of the at least one pressure sensor (6) is arranged on a frame (10) of the device (1).

11. The device (1) as claimed in claim 4, further comprising a seating (11) in which the pressure-transfer element (9) is arranged.

12. The device (1) as claimed in claim 11, wherein the seating (11 is arranged in at least one of a guided or moveable manner in an operating direction (Pf.1) of the at least one processing tool (3, 4).

13. The device (1) as claimed in claim 4, wherein the device (1), as at least one processing tool, includes at least one of a drill (3) for the manufacture of bundle-accommodating holes (12) in a bristle holder (5), or an insertion tool (4) for filling the bundle-accommodating holes (12) of a bristle holder (5) with bundles of bristles (13).

14. The device (1) as claimed in claim 4, wherein the at least one pressure-recording surface (7) of the pressure sensor (6) is arranged behind the support (8) arranged in the processing position (P) in the operating direction of the at least one processing tool (3, 4).

15. The device (1) as claimed in claim 4, wherein the at least one pressure-recording surface (7) of the pressure sensor (6) is arranged behind the bristle holder (5) arranged on said support (8) in the operating direction of the at least one processing tool (3, 4).

16. The device as claimed in claim 6, wherein the at least one support (8) has a clamping device (16) for the bristle holder (5).

17. The device as claimed in claim 4, further comprising a comparator (17) and a controller (18), which is configured to receive signals from the comparator (17), the comparator (17) is configured to compare a processing pressure or actual pressure determined with the at least one pressure sensor (6) with a stored target pressure, and to output a signal to the controller (18), said signal representing a deviation between the actual pressure and the target pressure, and the controller (18) is configured to shut down the device (1) as a function of the deviation between the target pressure and actual pressure determined by the comparator (17).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) With the aid of the FIGURE, an embodiment of the invention is described in more detail below. In a highly schematic representation:

(2) The FIGURE is a partially sectioned side view of a device for the manufacture of scrubbing brushes and/or painting brushes, having a first processing tool, designed as a drill, and a second processing tool, designed as an insertion tool for the insertion of bundles of bristles into bristle holders held in readiness, and having two pressure sensors assigned to the two processing tools for determining a processing pressure which is exerted by the respective processing tool onto the support and bristle holder arranged in the processing position.

DETAILED DESCRIPTION

(3) The single FIGURE shows a device designated as a whole by 1 for the manufacture of scrubbing brushes 2 and/or painting brushes. The device 1 shown in the FIGURE has a total of two processing tools 3 and 4, of which a first is designed as a drill 3 and a second as an insertion tool 4. Both processing tools 3, 4 are set up for processing a bristle holder 5 of a scrubbing brush 2 to be manufactured. A pressure sensor 6 is assigned to each processing tool 3, 4 of the device 1. Each pressure sensor 6 has a pressure-recording surface 7 and is set up so as to determine a processing pressure which is exerted onto the bristle holders 5 by the respective processing tool 3, 4 of the device 1.

(4) The pressure-recording surfaces 7 of the pressure sensors 6 are arranged behind the bristle holder 5 located in the processing position P, in the operating direction Pf.1 of the respective processing tool 3, 4. The processing positions P are respectively arranged between their processing tools 3, 4 and the pressure-recording surfaces 7 of the pressure sensors 6, which pressure-recording surfaces are assigned to said processing tools. Thus, during processing with the processing tools 3, 4, the bristle holders 5 are located between the processing tools 3, 4 and the pressure-recording surfaces 7 of the pressure sensors 6 assigned to the processing tools 3, 4.

(5) The device 1 has a plurality of supports 8, which are each set up so as to accommodate a bristle holder 5. Here the supports 8 are arranged in the processing positions P assigned to the respective processing tools 3, 4, between the processing tools 3, 4 and the pressure-recording surfaces 7.

(6) The device 1 also has a total of two pressure-transfer elements 9. With support 8 located in the processing position P and with bristle holder 5 located in the processing position P, the said pressure-transfer elements 9 are arranged between the respective support 8 and the respective pressure-recording surface 7, and also between the respective bristle holder 5 and the respective pressure-recording surface 7 of the pressure sensors 6.

(7) The pressure sensors 6 and the pressure-recording surfaces 7 of the pressure sensors 6 are arranged on a frame 10 of the device 1. The pressure-transfer elements 9 are in each case arranged in a seating 11 on the frame 10 of the device 1. Within the seatings 11, the pressure-transfer elements 9 can be arranged such that they are guided and moveable in the operating direction Pf.1 of the respective processing tool 3, 4. As already stated above, the device 1 has a drill 3 as a first processing tool. The drill 3 is used to produce bundle-accommodating holes 12 in the bristle holders 5. The operating direction Pf.1 of the drill 3 is prescribed by its feed movement. As a second processing tool, the device 1 is equipped with an insertion tool 4 for filling the previously generated bundle-accommodating holes 12 in the bristle holders 5 with bundles of bristles 13. The operating direction Pf.1 of the insertion tool 4 is prescribed by its insertion movement.

(8) The pressure-recording surfaces 7 of the pressure sensors 6 are arranged behind the supports 8 arranged in each case in the processing position P, and also behind the bristle holders 5 arranged thereon, in the operating direction Pf.1 of the two processing tools 3, 4.

(9) The device 1 has a transport device 14, which in the present case is designed as a transport chain 14. A multiplicity of individual supports 8 is arranged on the transport chain 14. With the aid of the transport device 14, the supports 8 can be transported from one processing tool 3, 4 to a subsequent processing tool 3, 4, or else to a subsequent processing station, or else to a subsequent output station of the device 1. Here a transport track 15, along which the supports 8 can be transported by the transport device 14, extends between the processing tools 3, 4 arranged on the one side, and the pressure-recording surfaces 7 of the pressure sensors 6, which pressure-recording surfaces are assigned to the respective processing tools 3, 4 and are arranged on an opposite side of the device 1.

(10) The supports 8 are also equipped with clamping devices 16 for bristle holders 5, so that the bristle holders 5 can be reliably fixed to the support 8 while they are being processed.

(11) The device 1 additionally comprises a controller 18 and, for each pressure sensor 6, in each case a comparator 17. The controller 18 is connected to the two comparators 17 by way of appropriate signal lines 19. For signal transmission between the controller 18 and the comparators 17, wireless connections can be used in addition to, or instead of, signal lines 19. Each comparator 17 is set up so as to compare the processing pressures or actual pressures determined with the pressure sensors 6 with stored target pressures, and also so as to output signals to the controller 18, which represent a deviation determined between the actual and target pressures. The signals of the comparators 17 cause the controller 18 to shut down the device 1 if the deviations determined reach or exceed a certain value.

(12) With the above-described device 1, the method described below for the manufacture of scrubbing brushes 2 and/or painting brushes can be executed. Here a bristle holder 5 of a scrubbing brush 2 to be manufactured and/or a painting brush to be manufactured is processed with a processing tool 3, 4 of the device 1. A processing pressure exerted by the processing tool 3, 4 onto the bristle holder 5 during the processing of the bristle holder 5 is transferred to the pressure-recording surface 7 and determined by the pressure sensor 6. The pressure-recording surface 7 of the pressure sensor 6 is arranged behind the bristle holder 5 in the operating direction Pf.1 of the processing tool 3, 4. Here the bristle holder 5 is located directly on the pressure-transfer element 9. Thus the processing pressure is first transferred to the bristle holder 5 and finally from the latter, by way of the pressure-transfer element 9, very uniformly onto the pressure-recording surface 7 of the pressure sensor 6. Here the determination of the processing pressure takes place for each of the two processing tools 3 and 4 independently, by way of separate pressure sensors 6.

(13) The processing pressure determined with the aid of the respective pressure sensor 6 can then be compared by the respective comparator 17 with a stored target pressure, and processing can be halted automatically by the controller 18 in the event of a defined deviation between actual pressure and target pressure.

(14) The invention is concerned with improvements in the field of the manufacture of scrubbing brushes and/or painting brushes. For this purpose, inter alia, the method for the manufacture of scrubbing brushes 2 and/or painting brushes is proposed, in which a processing pressure exerted by a processing tool 3, 4 onto a bristle holder 5 to be processed is determined by a pressure sensor 6, which has a pressure-recording surface 7, which is arranged behind the bristle holder 5 to be processed, in the operating direction Pf.1 of the processing tool 3, 4. In this manner, determination of the processing pressure is possible close to the bristle holder 5 to be processed.

LIST OF REFERENCE SYMBOLS

(15) 1 Device 2 Scrubbing brush 3 Drill 4 Insertion tool 5 Bristle holder 6 Pressure sensor 7 Pressure-recording surface 8 Support 9 Pressure-transfer element 10 Frame of 1 11 Seating for 9 12 Bundle-accommodating holes in 5 13 Bundle of bristles 14 Transport device 15 Transport track 16 Clamping device on 8 17 Comparator 18 Controller 19 Signal line between 6 and 17 and also between 17 and 18 P Operating Position