Brush filling machine

Abstract

The utility model mainly relates to a kind of brush filling machine (1), including filling tool (2), the filling tool has push tongue (3), the push tongue design is used, and bristle bundle (4) is filled into the bundle receiving hole (5) of brush body (6), wherein, the brush filling machine (1) has in starting position with pre-tightening force (24) pre-tightening force sensor (10), the force sensor design is used to measure force, the force is filled by filling force (25) when filling bristle bundle (4) and pre-tightening force (24) exerted on the force sensor (10) in starting position Pre-tightening force synthesis.

Description

Technical Field

[0001] This utility model relates to a brush filling machine. Background Technology

[0002] A brush filling machine is used to manufacture brushes and, more specifically, to fill bristle bundles into the bundle receiving holes of the brush body, thus producing a brush bristle filling.

[0003] For this purpose, a brush filling machine has a filling tool including a pusher tongue designed and configured to fill bristle bundles into bundle receiving holes in the brush body. Typically, the bristle bundles are filled into the bundle receiving holes along with a fixing anchor and anchored there.

[0004] To avoid damage to the brush filler, it may be appropriate to monitor the filling force acting on the pusher tongue when filling the brush bristles. If the filling force acting on the pusher tongue exceeds the tolerance range, this may indicate damage to the pusher tongue or contamination or wear of the filling tool and therefore the need for cleaning or maintenance of the brush filler.

[0005] If the filling force applied to the pusher is too great, this can, in the worst case, lead to the breakage of the pusher or damage to the drive mechanism of the brush filling machine, thereby causing the brush filling machine to fail. Utility Model Content

[0006] The objective of this invention is to prevent damage to the brush filling machine during brush manufacturing.

[0007] To address the aforementioned task, a brush filling machine with measures and features for such a brush filling machine is proposed.

[0008] The brush filling machine according to this utility model includes a filling tool having a pusher tongue designed to fill a bristle bundle into a bundle receiving hole of a brush body. The brush filling machine has a force sensor pre-tightened with a pre-tightening force in an initial position. The force sensor is designed to measure a force composed of a filling force acting on the pusher tongue when filling the bristle bundle and a pre-tightening force applied to the force sensor in the initial position.

[0009] Specifically, to address the aforementioned task, a brush filling machine is proposed, comprising a filling tool having a pusher tongue designed to fill bristle bundles, particularly together with a fixing anchor, into a bundle receiving hole in the brush body. The brush filling machine also includes a force sensor pre-tightened in a starting position, the force sensor designed to measure a force composed of a filling force acting on the pusher tongue during bristle filling and a pre-tightening force applied to the force sensor in the starting position.

[0010] The preload and filling force can be at least partially opposite to each other. To determine the filling force, the combined force can be measured.

[0011] The filling force, a combination of preload and filling force, measured using a force sensor, can be determined, especially when the preload is known. The force sensor also allows it to determine whether the filling force is within its tolerance range. If the filling force is outside its tolerance range, this can indicate a malfunction in the brush filler. In this case, reducing the power of the brush filler or even shutting it down can be recommended.

[0012] When the force sensor is unloaded by the filling force, that is, when the combined force of the preload and the filling force is less than the preload applied to the force sensor in the initial position, damage to the force sensor can be effectively avoided even when the filling force increases. The degree of unloading of the force sensor corresponds to the degree of load on the pusher tongue by the filling force and can be considered for monitoring the filling process of the brush filling machine, and especially for monitoring the pusher tongue.

[0013] The brush filling machine may have a drive unit connected to the pusher tongue via a force transmission rod and designed to drive the pusher tongue during the filling motion. The force transmission rod can preload the force sensor along the filling direction for preload. The force transmission rod thus has a dual function: on the one hand, it transmits the driving motion and driving force of the brush filling machine's drive unit to the pusher tongue; on the other hand, it ensures the preload of the force sensor.

[0014] In one embodiment of the brush filling machine, the force transmission rod is configured to be movably supported and / or flexible such that the force sensor can be unloaded by the filling force acting on the force transmission rod via the pusher, particularly in a filling direction opposite to the pusher. The unloading of the force sensor reacts to the preload applied to the force sensor in the initial position, thereby allowing the force sensor to measure the correspondingly reduced combined force.

[0015] The preload force acting on the force sensor in the initial position can be determined such that once the filling force reaches a defined overload force, the force transmission contact between the force transmission rod and the force sensor is cancelled. In this case, the filling force cancels out the preload force, and the resulting force is zero or even negative, i.e., pointing away from the force sensor. Through the flexible and / or movable support of the force transmission rod, the force transmission rod can then disengage from the force sensor based on the filling force it receives. The force sensor is then unloaded, from which it can be deduced that the filling force has at least reached the overload force value.

[0016] The flexibility and / or movable support of the force transmission rod can simultaneously provide overload protection for the pusher, which can protect the pusher from damage. When the force transmission rod can be offset against the filling direction or at least remain in a fixed position based on its movable support and / or flexibility, overloaded filling forces can be prevented from being transmitted to the pusher, thereby protecting the pusher.

[0017] Once a defined overload force is applied to the pusher, such that the overload force is still borne by the pusher without failure, the force transmission rod, which is preloaded to the force sensor, can disengage from the force sensor. This can be detected by the corresponding signal from the force sensor or by a decrease in the corresponding signal from the force sensor. By disengaging the force transmission rod from the force sensor in this overload condition, damage to the force transmission rod, the force sensor, and ultimately the pusher can be effectively avoided. Once the overload force is reached, the preload force that preloads the force transmission rod to the force sensor in the initial position is overcome, and the force transmission rod and the force sensor can disengage from each other.

[0018] In a preferred embodiment of the brush filling machine, the brush filling machine has a tongue with at least two parts. One part of the tongue is a drive rod, and the second part of the tongue is the force transmission rod mentioned earlier. The drive rod can be connected at one end, for example, to the drive mechanism of the brush filling machine via a connecting rod, and at the other end to the force transmission rod.

[0019] The driving force and driving motion of the driving device can be first transmitted to the force transmission rod via the driving rod of the tongue rod, and then transmitted to the push tongue by the force transmission rod, so that the push tongue moves in the filling motion.

[0020] The drive rod and the force transmission rod can be hinged together such that the force sensor is unloaded by the filling force acting on the force transmission rod through the pusher, opposite to the filling direction.

[0021] If a counteracting preload force, such as the previously mentioned overload force, is applied, the force transmission contact between the force transmission rod and the force sensor can be completely eliminated. Specifically, this means that when an overload force acts on the force transmission rod, the force transmission rod and the drive rod change their angular positions relative to each other.

[0022] By using a hinged connection between the drive rod and the force transmission rod, their relative positions can change as the drive rod moves further, thereby unloading the force sensor. This effectively avoids damage to the two-part tongue, especially the force transmission rod, and also the push tongue.

[0023] By counteracting the preload that holds the force transmission rod to the force sensor in the event of an overload, the force transmission contact between the force transmission rod and the force sensor can be cancelled. This results in a corresponding drop or even absence of the force sensor signal. A drop or absence of the sensor signal can indicate a malfunction in the brush filling machine. The force measured by the force sensor at this time, which is the combined force of the filling force and the preload, can be zero in this situation.

[0024] In a preferred embodiment of the brush filling machine, the force sensor is disposed between the drive rod and the force transmission rod. The force sensor may, for example, be disposed on the drive rod.

[0025] By positioning the force sensor between the drive rod and the force transmission rod, the force sensor can reliably detect the combined force of the filling force and the preload force acting on the force transmission rod in the opposite direction to the filling direction.

[0026] The brush filling machine may have a preload device for generating a preload force acting on the force sensor. The previously mentioned force transmission rod may be preloaded onto the force sensor, particularly along the filling direction, using the preload device.

[0027] The preload device can be mounted on the drive rod, for example. The preload device can also have a pressure spring that generates the preload force. The value of the preload force can be determined such that it is counteracted in the event of an overload. This allows for the use of an overload protection force sensor.

[0028] The brush filling machine may have a control unit. The control unit may be designed to reduce the filling speed of the pusher or stop the pusher once the combined force applied to the force sensor reaches or falls below a limit value.

[0029] The control unit can be designed to control, for example, the previously mentioned drive mechanism of the brush filling machine, based on sensor signals from the force sensor. The control unit can be particularly designed to reduce the speed of the drive mechanism or stop the drive mechanism once the combined force applied to the force sensor reaches or falls below a limit value. For example, the control unit can stop the drive mechanism of the brush filling machine once the force sensor is completely unloaded.

[0030] The limits that the combined force must reach or fall below to reduce the filling speed of the pusher tongue and / or the speed of the drive mechanism can be greater here than the limits that the combined force must reach or fall below to stop the pusher tongue and / or the drive mechanism.

[0031] To address the aforementioned task, a method for filling a brush using a brush filling machine according to this invention is also proposed. Here, the method involves filling a bristle bundle into a bundle receiving hole in the brush body using the pusher of the filling tool of the brush filling machine, wherein, to determine the filling force acting on the pusher, a force sensor is used to measure the force resulting from the preload force and the filling force, and the filling force is derived therefrom.

[0032] For example, the filling force can be derived from the measured composite force using the control unit of the brush manufacturing machine, which was mentioned earlier.

[0033] In one embodiment of the method, the filling speed is reduced or the filling process is interrupted once the combined force reaches or falls below the limit value.

[0034] In one embodiment of the method, once the combined force reaches or falls below a limit value, the control unit of the brush filling machine reduces the speed of the drive device of the brush filling machine or stops the drive device.

[0035] When there is no longer any preload applied to the force sensor, that is, when the combined force measured by the force sensor is zero, the drive device can be stopped, for example.

[0036] In one embodiment of the method, it is configured such that when the filling force is so large that it counteracts the preload force acting on the force sensor, the force sensor and force transmission rod of the aforementioned brush manufacturing machine move further apart from each other and may even disengage from each other as the filling force increases.

[0037] To address the aforementioned task, the application of a force sensor with preload preload in a brush filling machine is also proposed, for determining the filling force by measuring the force resulting from the combination of the preload and the filling force using the force sensor.

[0038] For example, a force sensor can be pre-tightened between the drive unit and the pusher of the brush filling machine using a force transmission rod. The filling force can be the filling force acting on the pusher of the brush filling machine.

[0039] Advantageously, the brush filling machine has a drive unit connected to the pusher tongue via a force transmission rod and designed to drive the pusher tongue during the filling motion, wherein the force transmission rod is pre-tightened toward the force sensor along the filling direction of the pusher tongue for pre-tightening of the force sensor.

[0040] Advantageously, the force transmission rod is movably supported and / or flexible, allowing the force sensor to be unloaded by the filling force acting on the force transmission rod via the pusher.

[0041] Advantageously, the preload force is determined such that once the filling force reaches the defined overload force, the force transmission contact between the force transmission rod and the force sensor is canceled.

[0042] Advantageously, the brush filling machine has a tongue with at least two parts, wherein one part of the tongue is a drive rod and the second part of the tongue is a force transmission rod, wherein the drive rod is connected to the drive device and to the force transmission rod.

[0043] Advantageously, the drive rod is connected to the drive device and the force transmission rod via a connecting rod.

[0044] Advantageously, the drive rod and the force transmission rod are hinged to each other, such that the force sensor is unloaded by the filling force acting on the force transmission rod via the pusher, opposite to the filling direction.

[0045] Advantageously, the force sensor is disposed between the drive rod and the force transmission rod.

[0046] Advantageously, the force sensor is disposed on the drive rod or the force transmission rod.

[0047] Advantageously, the brush filling machine has a preload device for generating the preload force.

[0048] Advantageously, the brush filling machine has a preload device on the drive rod for generating the preload force.

[0049] Advantageously, the force transmission rod is pre-tightened to the force sensor via the pre-tightening device.

[0050] Advantageously, the brush filling machine has a control unit designed to reduce the filling speed of the pusher or stop the pusher once the preload applied to the force sensor reaches or falls below a limit value.

[0051] Advantageously, the brush filling machine has a control unit designed to control the drive mechanism of the brush filling machine based on sensor signals from the force sensor.

[0052] Advantageously, the control unit is designed to reduce the speed of the drive device or stop the drive device once the preload applied to the force sensor reaches or falls below a limit value. Attached Figure Description

[0053] The present invention will then be further described with reference to embodiments, but the present invention is not limited to these embodiments. Other embodiments are derived by combinations of one or more features and / or by combinations of one or more features of the embodiments. Wherein:

[0054] Figure 1 A perspective view of a brush filling machine with a filling tool is shown, wherein the pusher tongue of the filling tool is connected to the drive mechanism of the brush filling machine via a two-part tongue bar, wherein a force sensor is disposed between the drive rod and the force transmission rod of the two-part tongue bar, and the force transmission rod is preloaded toward the force sensor along the filling direction with a defined preload force; and

[0055] Figure 2 Showing includes Figure 1 The diagram shows the characteristic curves of the force sensor of the brush filling machine, wherein the magnitude of the sensor signal of the force sensor is recorded with respect to the force acting on the force sensor. Detailed Implementation

[0056] Figure 1 The brush filling machine, generally indicated by 1, is shown. The brush filling machine 1 has a filling tool 2, which has a pusher 3. The pusher 3 is designed to fill the bristle bundle 4 together with the fixing anchor into the bundle receiving hole 5 of the brush body 6.

[0057] The brush filling machine 1 has a drive device 7, which is connected to the pusher 3 via a force transmission rod 8 and is designed to drive the pusher 3 during the filling motion.

[0058] Figure 1 As shown, the force transmission rod 8 is preloaded towards the force sensor 10 along the filling direction indicated by arrow 9, which passes through the push tongue 3. Arrow 24 is used in... Figure 1 The direction of the preload force acting on the force sensor 10 is explained in the text.

[0059] The force sensor 10, which is preloaded by the preload 24, is designed to measure the force composed of the preload 24 and the filling force 25, which acts on the pusher tongue 3 when filling the bristle bundle 4.

[0060] exist Figure 1 The force sensor 10 in the brush filling machine 1 shown is configured such that it is unloaded by the filling force 25 acting on the force transmission rod 8 via the pusher 3, opposite to the filling direction 9. That is, as the filling force increases, the combined force that can be measured by the force sensor 10 becomes smaller.

[0061] The force sensor 10 is made possible by the corresponding movable support of the force transmission rod 8, which allows the force to be unloaded as the filling force increases. The force transmission rod 8 is thus movablely supported and initially connected to the force sensor 10, so that the force sensor 10 is unloaded by the filling force 25 acting on the force transmission rod 8 via the pusher 3 in a filling direction 9 opposite to that of the pusher 3.

[0062] If the filling force 24 acting in the opposite direction of the filling direction 9 to the push tongue 3 is at the magnitude of the overload force, such that the overload force is so large that it cancels the pre-tightening of the force transmission rod 8 toward the force sensor 10, then the force transmission contact between the force transmission rod 8 and the force sensor 10 is canceled.

[0063] The unloading that occurs in the load of the push tongue 3 under the force sensor 10 is detected by the force sensor as a change in the composite force and results in the output of a corresponding sensor signal. The sensor signal represents the composite force applied instantaneously to the force sensor 10 and allows the specific applied filling force 25 to be inferred, thereby inferring the load experienced by the push tongue 3.

[0064] Because the force sensor 10 is unloaded by the load of the pusher 3, which is opposite to the filling direction 9, there is no need to worry about damage to the force sensor 10 when the pusher 3 is overloaded in that direction. Therefore, the force sensor 10 is effectively protected against damage without affecting the monitoring of the pusher 3.

[0065] The brush filling machine 1 has a two-part tongue 11, wherein one part of the tongue 11 is a drive rod 12 and the second part of the tongue 11 is the previously mentioned force transmission rod 8.

[0066] The drive rod 12 is connected to the drive unit 7 of the brush filling machine 1 via the connecting rod 13. The end of the drive rod 12 facing away from the connecting rod 13 is connected to the force transmission rod 8.

[0067] The drive rod 12 and the force transmission rod 8 are hinged together such that the force sensor 10 is unloaded by the filling force 25 acting on the force transmission rod 8 via the pusher 3, opposite to the filling direction 9. The force transmission rod 8 can change its angular position relative to the drive rod 12 by means of the deflection axis 30 around the hinged connection between the drive rod 12 and the force transmission rod 8, which is deflected a certain distance relative to the drive rod 12.

[0068] The hinged connection between the drive rod 12 and the force transmission rod 8 is formed by a deflection joint 14. The force sensor 10 is on the drive rod 12 and positioned between the drive rod 12 and the force transmission rod 8. By changing the angular position between the force transmission rod 8 and the drive rod 12, when the filling force 25 is large enough to counteract the preload force 24, the force sensor 10 and the drive rod 12 can move away from and disengage from the force transmission rod 8 with the increasing filling force 25.

[0069] A preload force 24 is generated by the preload device 15 of the brush filling machine 1. For this purpose, the force transmission rod 8 is preloaded towards the force sensor 10 along the filling direction 9 by the preload device 15. The preload device 15 is mounted on the drive rod 12 and has a pressure spring indicated by 16, which tensions the force transmission rod 8 towards the force sensor 10 mounted on the drive rod 12.

[0070] The brush filling machine 1 has a control unit 17. The control unit 17 is designed to reduce the filling speed of the pusher 3 or stop the pusher 3 once the combined force measured by the force sensor 10 reaches or falls below a limit value.

[0071] For this purpose, the control unit 17 can control the drive device 7 of the brush filling machine 1 based on the sensor signal of the force sensor 10, that is, for example, once the combined force measured by the force sensor 10 reaches or falls below the limit value, the speed of the drive device 7 is reduced or even the drive device 7 is stopped.

[0072] The combined force used to reduce the filling speed of the pusher 3 and / or the speed of the drive device 7 must reach or fall below the limit value here, which may be greater than the limit value used to stop the pusher 3 and / or the drive device 7.

[0073] The brush manufacturing machine 1 has a bristle chamber 26 containing bristle filaments disposed therein and a bristle separator 27 including a bristle extraction groove 28. Using the bristle extraction groove 28, the bristle separator 27 moves across the bristle chamber 26 to extract bristle bundles 4 from the bristle chamber 26. The bristle separator 27 then transfers the extracted bristle bundles 4 to a downstream filling tool 2. Using the filling tool 2, the bristle bundles 4 are then filled into the bristle receiving holes 5 of the brush body 6 provided on the holding device 29 of the brush filling machine 1.

[0074] The brush filling machine 1 described earlier is designed to implement the method for filling brushes, which will be described next. Here, the brush bristle bundles 4 are filled into the bundle receiving holes 5 of the prepared brush body 6 using the pusher tongue 3 of the filling tool 2 of the brush filling machine 1.

[0075] To determine the filling force 25 acting on the pusher tongue 3, the force sensor 10 measures the force composed of the preload force 24 and the filling force 25, and thus derives the filling force 25.

[0076] Once the combined force, which can be measured by force sensor 10, reaches or falls below the limit value, the filling speed is reduced or the filling process is even interrupted.

[0077] Specifically, the control unit 17 of the brush filling machine 1 is used to reduce the speed of the drive device 7 of the brush filling machine 1 or stop the drive device 7 once the combined force reaches or falls below the limit value.

[0078] Therefore, a force sensor 10 preloaded by a preload 24 is used on the brush filling machine 1 to determine the filling force 25 acting on the pusher tongue 3 of the brush manufacturing machine 1 by measuring the force combined by the preload 24 and the filling force 25 using the force sensor 10.

[0079] Figure 2 The diagram shows the characteristic curve of the force sensor 10 of the brush filling machine 1. In the diagram, the sensor signal 18 output by the force sensor 10 is recorded with respect to the force 19 acting on the force sensor 10.

[0080] The diagram illustrates the measurement range start point 20, measurement range end point 21, and overload limit 22 of the force sensor 10. If the force sensor 10 is loaded beyond its overload limit 22, the force sensor may be damaged. Reliable measurements are only possible between the measurement range start point 20 and the measurement range end point 22.

[0081] Based on force sensor 10 Figure 1 The installation shown in the diagram is such that the force sensor 10 is unloaded as the load on the pusher 3 increases. This effectively prevents the force sensor 10 from being subjected to forces exceeding its overload limit 22.

[0082] Setting point 23 is also marked in the diagram. At setting point 23, a force is applied to the force sensor 10, and the force transmission rod 8 is preloaded onto the force sensor 10 by said force. By correspondingly selecting the preload force 24, setting point 23 can be positioned as desired, for example, in the center of the measurement range defined by the starting point 21 and the ending point 23 of the measurement range of the force sensor 10. This ensures that the force sensor 10 can be optimally utilized for monitoring the force acting on the push tongue 3.

[0083] Force sensor 10 as in Figure 1 The negative mounting orientation shown in the figure has the advantage that the relatively expensive force sensor 10 will not be damaged when the push tongue 3 is overloaded, but will be unloaded as the load increases.

[0084] From Figure 2 Starting from the set point represented by 23, a defined preload 24 is applied to the force sensor 10, and the force sensor 10 is unloaded as the filling force 25 acting on the push tongue 3 increases, until the force combined by the preload 24 and the filling force 25 reaches or falls below a limit value, for example, zero.

[0085] Reaching or falling below the limit value can be used as a trigger criterion to specifically control the drive unit 7 of the brush filling machine 1 with the help of the control unit 17, and thus, for example, reduce the filling speed or stop the drive unit 7.

[0086] List of reference numerals

[0087] 1-Brush Filler

[0088] 2 Fill Tool

[0089] 3. Tongue Push

[0090] 4 bristle bundles

[0091] 5 beam receiving apertures

[0092] 6 brush body

[0093] 7 drive units

[0094] 8-force transmission rod

[0095] 9 Fill direction

[0096] 10 force sensors

[0097] 11 tongue bar

[0098] 12 drive levers

[0099] 13-link

[0100] 14 Deflection joint between 8 and 12

[0101] 15 Pre-tightening device

[0102] 16-compression spring

[0103] 17 Control Unit

[0104] 18 sensor signals

[0105] 19 force acting on 10

[0106] 20 Measurement range starting point

[0107] 21 Measurement range endpoint

[0108] 22 Overload Limit

[0109] 23 Pre-tightening setting points

[0110] 24 preload

[0111] 25 filling force

[0112] 26 bristle compartments

[0113] 27 beam splitters

[0114] 28-beam extraction slot

[0115] 29 Holding device

[0116] 30 deflection axis

Claims

1. A brush filling machine, comprising a filling tool (2) having a pusher (3) designed to fill a bristle bundle (4) into a bundle receiving hole (5) of a brush body (6), characterized in that, The brush filling machine (1) has a force sensor (10) pre-tightened in the starting position with a pre-tightening force (24), the force sensor being designed to measure a force composed of a filling force (25) acting on the pusher (3) when filling the bristle bundle (4) and a pre-tightening force (24) applied to the force sensor (10) in the starting position.

2. The brush filling machine according to claim 1, characterized in that, The brush filling machine (1) has a drive device (7) connected to the pusher (3) via a force transmission rod (8) and designed to drive the pusher (3) in the filling motion, wherein the force transmission rod (8) is pre-tightened toward the force sensor (10) along the filling direction (9) of the pusher (3) for the pre-tightening of the force sensor (10).

3. The brush filling machine according to claim 2, characterized in that, The force transmission rod (8) is movably supported and / or flexible, such that the force sensor (10) can be unloaded by the filling force (25) acting on the force transmission rod (8) via the pusher (3).

4. The brush filling machine according to claim 2 or 3, characterized in that, The preload force (24) is determined such that once the filling force (25) reaches the defined overload force, the force transmission contact between the force transmission rod (8) and the force sensor (10) is canceled.

5. The brush filling machine according to claim 2 or 3, characterized in that, The brush filling machine (1) has a tongue (11) with at least two parts, wherein one part of the tongue (11) is a drive rod (12) and the second part of the tongue (11) is a force transmission rod (8), wherein the drive rod (12) is connected to the drive device (7) and to the force transmission rod (8).

6. The brush filling machine according to claim 5, characterized in that, The drive rod (12) is connected to the drive device (7) via a connecting rod and to the force transmission rod (8).

7. The brush filling machine according to claim 5, characterized in that, The drive rod (12) and the force transmission rod (8) are hinged to each other, so that the force sensor (10) is unloaded by the filling force (24) acting on the force transmission rod (8) via the pusher (3) opposite to the filling direction (9).

8. The brush filling machine according to claim 5, characterized in that, The force sensor (10) is disposed between the drive rod (12) and the force transmission rod (8).

9. The brush filling machine according to claim 8, characterized in that, The force sensor (10) is mounted on the drive rod (12) or the force transmission rod (8).

10. The brush filling machine according to any one of claims 1 to 3, characterized in that, The brush filling machine (1) has a pre-tightening device (15) for generating the pre-tightening force (24).

11. The brush filling machine according to claim 10, characterized in that, The brush filling machine (1) has a preload device (15) on the drive rod (12) for generating the preload force (24).

12. The brush filling machine according to claim 10, characterized in that, The force transmission rod (8) is pre-tightened to the force sensor (10) through the pre-tightening device (15).

13. The brush filling machine according to any one of claims 1 to 3, characterized in that, The brush filling machine (1) has a control unit (17) designed to reduce the filling speed of the pusher (3) or stop the pusher (3) once the preload force (24) applied to the force sensor (10) reaches or falls below the limit value.

14. The brush filling machine according to any one of claims 1 to 3, characterized in that, The brush filling machine (1) has a control unit (17) designed to control the drive device (7) of the brush filling machine (1) based on the sensor signal of the force sensor (10).

15. The brush filling machine according to claim 14, characterized in that, The control unit is designed to reduce the speed of the drive unit (7) or stop the drive unit (7) once the preload (24) applied to the force sensor (10) reaches or falls below the limit value.

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