TW201420046A - Apparatus for the reworking of bundles of bristles - Google Patents

Abstract

An apparatus (1) for the reworking of bundles of bristles (2) has two drum-like slotting devices (4a, 4b), which bear slotting blades (5) on the circumference, and has a drive unit (11) for the slotting devices (4a, 4b). The slotting devices (4a, 4b) are arranged one behind the other in an axial direction and a first slotting device (4b) is mounted on a shaft which is guided in a hollow shaft (6) which bears the second slotting device (4a). The drive unit (11) is designed for an oppositely directed rotational movement of the two slotting devices (4a, 4b).

Description

Device for subsequent processing of bristle bundles

The invention relates to a device for subsequent processing of a bristle bundle, which has a two-roller type separating mechanism, the peripheral edge of which carries a dividing blade and has a driving unit of a dividing mechanism.

On many bristle articles, particularly on brushes or brooms, there is a requirement that the individual bristles of the tufts of hair previously inserted into a brush body be separated or spread at their free ends to achieve a surface area expansion. A better material capacity is obtained via the expanded surface area. This allows for more contamination on the cleaning brush or broom and more paint on the brush. In addition, the diffused bristles have a softer surface which is advantageous in particular for polishing brushes and cleaning brushes, for example for vehicles or other objects having sensitive surfaces.

There have been related devices for the bristles to be scattered. The bristles that need to be bristled apart are guided through a rotating wire-splitting mechanism having a dividing blade disposed thereon, and the bristles are dispersed during the process. Since the uniform and complete bristles are scattered and separated, the bristles must be applied in the direction of rotation of the separating mechanism and in the opposite direction. Therefore, the two separate driving splitting mechanisms are required, resulting in a large space requirement for the device. There is also a device with a dividing mechanism that can be exchanged for driving in the opposite direction of rotation. Although the space requirement is therefore reduced, the direction of the rotary motion is changed and the accompanying separation mechanism brakes and re-drives to increase the cycle time. In addition, this practice results in increased heating of the motor of the drive unit and thus increased wear. Other components of the drive unit, Do not drive the toothed belt, but also suffer a higher wear.

It is therefore an object of the invention to provide a device of the aforesaid type which is compact and has a small space requirement and which in addition can be operated with a shorter cycle time. In addition, the wear is reduced.

The object of the present invention is, in particular, that the wire separating mechanism is arranged axially forward and backward, in that a first wire-splitting mechanism is carried on a shaft which is guided in a hollow shaft carrying the second wire-splitting mechanism Also, the drive unit is designed to provide the opposite rotational motion of the splitter mechanism.

Thus the device can be implemented in a compact configuration. Since there is no need to switch the direction of rotation on the drive unit, no time loss due to switching occurs, and the cycle time is reduced. In addition, since no direction conversion is required, no high wear occurs.

Directly adjacent to the yarn-splitting mechanism, the movement stroke, that is, the relative movement necessary for processing the entire width of the bristles between the yarn-splitting mechanism and the bristles to be processed, has a separation and mutual distance. The wire separation mechanism is relatively reduced.

In an embodiment the drive unit has two motors for driving the shaft and the hollow shaft. This makes it possible to drive the shaft and the hollow shaft independently of each other. The shaft and the hollow shaft may be directly connected to the respective motor shafts or indirectly via, for example, a belt and a pulley.

However, it is equally possible for the drive unit to have a common motor for driving the shaft and the hollow shaft and for having a reversing device for the reverse drive of the shaft and the hollow shaft. For example, the reversing device can have a belt that is guided through a suitably equipped reversing wheel. Since only one motor is needed in between, the device can be more cost-effective and the space requirements are further reduced.

Advantageously, the wire separating mechanism is longitudinally slidable in the axial and/or radial direction. Via The radial slip can change the distance to the bristles to be processed, and the squatting device can accommodate bristles having bristles of different lengths. The slip in the axial direction allows the processing width to be greater than the bristle article of the individual wire-splitting mechanism.

Alternatively, the wire-splitting mechanism can also be set to a fixed position, while the bristles are relatively Positioning and moving in the wire dividing mechanism. To this end, a holding and positioning device can be provided for positioning a bristle article to be processed in front of the yarn separating mechanism and causing the bristle article to slide axially and/or radially relative to the yarn dividing mechanism.

A further idea of the present invention is to provide two separate lines for upper and lower or adjacent arrangement. The mechanism pair is equipped with a common drive unit. This allows for the processing of double bristles per unit time, and the space requirements and costs of the device are not doubled, since the drive unit is used jointly by the two-wire mechanism.

1‧‧‧ device

2‧‧‧brow bundle

3‧‧‧Brushing items

4a‧‧‧Separating mechanism

4b‧‧‧Separating mechanism

5‧‧ ‧ wire blade

6‧‧‧ hollow shaft

7‧‧‧Axis

8‧‧‧ Middleware

9‧‧‧ Middleware

10‧‧‧ bearing

11‧‧‧Drive unit

12‧‧‧ motor

12a‧‧‧Motor

12b‧‧‧Motor

13‧‧‧ Pulley

14‧‧‧With

15‧‧‧Reversing wheel

16‧‧‧Reversing wheel

17‧‧‧ brush body

Pf1‧‧‧Buffing item positioning

Direction of rotation of Pf2‧‧‧4a

Direction of rotation of Pf3‧‧4b

Embodiments of the present invention are described in detail in the following figures. Wherein: FIG. 1 is a follow-up processing device for a bristle bundle, having a partial cross-sectional display diagram of a combination of a driving unit equipped with a dual motor, FIG. 2, and FIG. 3, a subsequent processing device for a bristle bundle, having a single motor A partial cross-sectional display of the drive unit and a combination of the fourth and third figures.

According to Figures 1 and 2, a device represented generally by 1 is used for the bristle bundle 2 of the bristle article 3, here a broom or a larger brush having a brush body 17 together with the bristles interposed therein Subsequent processing of the bundle 2, having two drum-type separating mechanisms 4a, 4b with a dividing blade at the periphery thereof 5. The dividing blades 5 are each designed in a hook shape, and the free ends of the dividing blades 5 are each directed forward in the direction of rotation. The two-segment mechanism 4a, 4b carries the splitter blades 5 in each direction and is designed to be oriented for each direction of rotation. The free ends of the oppositely rotating bristle bundles 2 are separated from the sides by the separating means 4a, 4b to achieve a complete and uniform split or loose filament. The surface area is enlarged by the splitting of the free bundle end, and a preferred material such as dirt or pigment is obtained depending on the kind of the bristle article. In addition, the free beam end achieves a softer surface which is particularly advantageous on brushes that handle sensitive surfaces.

In order to be able to process over the entire width of the bristle article 3, it is held in front of the yarn separating mechanism 4a, 4b by a positioning device not shown in detail, and can be axially slid in the yarn separating mechanism 4a, 4b (Fig. 1 In the middle arrow pf1). Alternatively, the device 1 can be positioned along the bristle article 3.

In particular, it can be seen from Fig. 2 that the inner side of the two-winding mechanism 4a is carried on a hollow shaft 6 via a cylindrical intermediate member 8. The outer wire dividing mechanism 4b is carried on a shaft 7, which penetrates the hollow shaft 6. In order to correct the different radii of the shaft 7 and the hollow shaft 6, an intermediate member 9 is disposed between the shaft 7 and the outer separating mechanism 4b. Thus, the same yarn separating mechanism 4a, 4b can be used, so that the dividing blade 5 is turned to the opposite direction.

The shaft 7 and the hollow shaft 6 are carried by the bearing 10 so that they are fixed in the radial direction and are rotatable independently of each other.

A drive unit 11 equipped with dual motors 12a, 12b is provided for the drive shaft 7 and the hollow shaft 6 and thus the drive splitter mechanisms 4a, 4b. Each of the motors 12a, 12b via the pulley 13 and the belt 14 is in driving connection with the shaft 7 on the one hand and the hollow shaft 6 on the other hand. In Fig. 1, the upper motor 12a drives the hollow shaft 6, and thus drives the yarn dividing mechanism 4a close to the driving unit 11 in the direction of the arrow Pf2, and in the first figure, the lower motor 12b drives the shaft guided in the hollow shaft 6. 7, and thus the outer branching mechanism 4b is driven in the direction of the arrow Pf3.

The device 1 is particularly space-saving via this configuration and can also be used in a limited space Hehe. For example, it can be attached to an existing shearing device. Since the motor does not need to change direction, together with the deceleration, rest and re-acceleration time that are not accompanied, the processing of the bristle bundle 2 is performed simultaneously in the two rotation directions, and the cycle time for processing a bristle article 3 can be reduced. Similarly, the moving stroke of the bristle article 3 for positioning all of the bristle bundles 2 to be moved before the filament separating mechanisms 4a, 4b is also lowered by the direct attachment of the filament separating mechanisms 4a, 4b. The wear is also reduced, because the motor can be driven continuously without the need for commutation.

Figures 3 and 4 show a further modification with respect to Figures 1 and 2. Set to 1, it is only provided with a single, common motor 12 for driving the shaft 7 and the hollow shaft 6 and the splitter mechanisms 4a, 4b.

In order to achieve relative rotation (arrows Pf2, Pf3), the drive unit 11 has an internal commutation The wheel 15, belt 14 drives the hollow shaft 6 with its outer surface via the inner reversing wheel. In addition to the inner reversing wheel 15, a reversing wheel 16 is provided in addition to the anti-rotation fixed connection, and the outer belt 14 bypasses the outer reversing wheel to drive the shaft 7 with its inner surface. The steering change is thereby achieved, and the pulleys 13 and thus the splitter mechanisms 4a, 4b, which are assigned to the shaft 7 and the hollow shaft 6, are rotated in opposite directions.

The apparatus 1 according to Figs. 3 and 4 thus requires less construction space than the apparatus of Figs. 1 and 2, and additionally uses only a single motor 12, resulting in a reduction in the cost of the apparatus 1.

A suction device can be arranged on the wire dividing mechanism 4a, 4b in a conventional manner for sucking the residual material dropped during the wire separation, in particular the tiny bristle piece and the material dust, which are clearly shown in the figure based on the illustration Not drawn.

1‧‧‧ device

2‧‧‧brow bundle

3‧‧‧Brushing items

4a‧‧‧Separating mechanism

4b‧‧‧Separating mechanism

5‧‧ ‧ wire blade

7‧‧‧Axis

11‧‧‧Drive unit

12a‧‧‧Motor

12b‧‧‧Motor

13‧‧‧ Pulley

14‧‧‧With

17‧‧‧ brush body

Pf1‧‧‧Buffing item positioning

Direction of rotation of Pf2‧‧‧4a

Direction of rotation of Pf3‧‧4b

Claims (6)

A device (1) for subsequent processing of a bristle bundle (2), having a two-roller type separating mechanism (4a, 4b), the peripheral edge of which carries a dividing blade (5), and has a dividing mechanism (4a, 4b) The driving unit (11) is characterized in that the separating mechanism (4a, 4b) is arranged in the axial direction, in that a first separating mechanism (4b) is carried on a shaft (7), the shaft is guided In the hollow shaft (6) carrying the second separating mechanism (4a), also in that the drive unit (11) is designed to provide the opposite rotational movement of the two-wire mechanism (4a, 4b). The device according to the first aspect of the invention is characterized in that the drive unit (11) has a double motor (12a, 12b) for driving the shaft (7) and the hollow shaft (6). The device according to claim 1, characterized in that the drive unit (11) has a common motor (12) for driving the shaft (7) and the hollow shaft (6), and having a reversing device For the reverse drive shaft (7) and hollow shaft (6). The device according to any one of claims 1 to 3, characterized in that the wire separating mechanism (4a, 4b) is longitudinally slidable in the axial direction and/or in the radial direction. The device according to any one of claims 1 to 3, characterized in that a stop and positioning device is provided for processing one of the bristle articles (3) to be processed in the separating mechanism (4a, 4b) Front positioning and for sliding the bristle article (3) in its axial and/or radial direction relative to the separating mechanism (4a, 4b). The device according to any one of claims 1 to 5, characterized in that the pair of upper and lower or adjacent wire separating mechanisms are provided, which are provided with a common driving unit (11).