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EP-4735184-A1 - METHOD FOR OPERATING A DISPENSING APPARATUS, AND DISPENSING APPARATUS

EP4735184A1EP 4735184 A1EP4735184 A1EP 4735184A1EP-4735184-A1

Abstract

The invention relates to a method for operating a dispensing apparatus (10), comprising the following steps: - determining a depth (77) of the hole (75) using the distance measuring device (60); - determining or setting a diameter of the hole (75); - calculating an internal volume (79) of the hole (75) (S3); - determining or setting a volume of a part of an element, in particular an anchoring rod, to be arranged inside the hole (75); - subtracting the volume from the calculated internal volume (79) of the hole (75) to result in a filling volume; - setting the determined filling volume in the dispensing apparatus (10) to output in a subsequent dispensing process.

Inventors

  • SCHMIDT, PEER
  • Hunger, Markus
  • BINDER, ALBERT

Assignees

  • Hilti Aktiengesellschaft

Dates

Publication Date
20260506
Application Date
20240612

Claims (14)

  1. 1. Method for operating a dispensing device (10) which can be brought into operative connection with a cartridge (40) provided with a mixer (41), wherein the dispensing device (10) has a control device (33) and a distance measuring device (60), wherein by means of the dispensing device (10) a mass (83) located in the cartridge (40) can be introduced into a bore (75) located in a wall (76), comprising the following steps: Determining a depth (77) of the bore (75) by means of the distance measuring device (60) (S1); Determining or setting a diameter (78) of the bore (75) (S2); Calculating an internal volume (79) of the bore (75) (S3); Determining or setting a volume (87) of a part of an element (82), in particular an anchor rod (S4), to be arranged within the bore (75); Subtracting the volume (87) from the calculated internal volume (79) of the bore (75) to a filling volume (88) (S5); Setting the determined filling volume (88) in the squeezing device (10) for the output of a subsequent squeezing process (S6).
  2. 2. Method according to claim 1, characterized in that a speed at which the squeezing device (10) is moved relative to the surface (80) of the wall (76) during a filling process is determined, wherein a filling process of the bore (75) is carried out as a function of the determined speed.
  3. 3. Method according to claim 2, characterized in that a mass flow output by the squeezing device (10) is reduced or stopped when a determined speed is less than or equal to a preset reference value.
  4. 4. Method according to one of the preceding claims, characterized in that the squeezing device (10) gives the user feedback when a movement speed determined during a filling process is less than a defined limit value and/or greater than a predefined limit value.
  5. 5. Method according to one of the preceding claims, characterized in that, in order to determine the depth (77) of the bore (75), a reference distance value is compared with a determined distance value when the mixer (41) is in contact with a bore bottom (81).
  6. 6. Method according to claim 5, characterized in that the reference distance value is stored in the squeezing device (10) or is determined when the mixer (41) is in contact with the wall (76) in the region of the bore (75).
  7. 7. Method according to one of the preceding claims, characterized in that for measuring a value by the distance measuring device (60) an average value is formed from several individual measurements.
  8. 8. Method according to one of the preceding claims, characterized in that an input of a diameter (86) of the element (82) to be introduced into the bore (75) is used to determine the volume (87) of the part of the element (82) to be arranged within the bore (75).
  9. 9. Method according to one of the preceding claims, characterized in that an input of a type of the element (82) to be introduced into the bore (75) is used to determine the volume (87) of the part of the element (82) to be arranged within the bore (75).
  10. 10. Method according to one of the preceding claims, characterized in that the determined filling volume (88) of the bore (75) can be or is reduced automatically or manually by a desired value.
  11. 11. Extrusion device for carrying out a method according to one of claims 1 to 10, wherein the extrusion device (10) can be brought into operative connection with a cartridge (40) provided with a mixer (41) and has a control device (33) and a distance measuring device (60).
  12. 12. Squeezing device according to claim 11, characterized in that the distance measuring device (60) is designed as a laser distance measuring device, as an ultrasonic distance measuring device, as a radar distance measuring device or as a mechanical distance measuring device.
  13. 13. Squeezing device according to one of claims 11 or 12, characterized in that a sensor (61) is provided by means of which an inclination of the squeezing device (10) can be determined.
  14. 14. Squeezing device according to one of claims 11 to 13, characterized in that a touch display (70) is provided for entering data.

Description

Description Method for operating a squeezing device and squeezing device technical field The invention relates to a method for operating a squeezing device. Furthermore, the invention relates to a squeezing device for carrying out such a method. Technical Background In addition to mechanically operated dispensing devices, a large number of electrically operated dispensing devices are known from practice. Cartridges can be inserted into the dispensing devices, whereby the masses in the cartridges can be dispensed via a mixer that can be brought into operative connection with the cartridge. The masses can be a two-component system, for example a mortar. Mechanically operated dispensing devices have a lever, which, when operated, moves a push rod of the dispensing device a defined distance in the direction of the cartridge and a certain amount of the mass or masses in the cartridge is pressed out by the mixer. Furthermore, electrically operated squeezing devices or dispensers are known in which, for example, it is possible to set via a user interface how far a push rod of the squeezing device should be moved when a switch is actuated or how much mass should be dispensed by the squeezing device when the switch is actuated. If the mass in the cartridge is to be used to fasten, for example, an anchor rod in a hole in a wall, a user or operator must estimate for themselves how much mass is to be introduced into the hole for this purpose, both in the case of mechanically operated dispensing devices and in the case of electrically operated dispensing devices. This estimate is prone to errors, so that it is difficult to achieve the desired filling of the borehole or hole with the mass. If too little mass is filled, there is a risk that the anchor rod arranged in the hole will not be able to transmit the desired forces. If, on the other hand, too much mass is filled, the material consumption is undesirably high and the mass can ooze out of the hole when the element is inserted. It is the object of the present invention to provide a method for operating a squeezing device by means of which a required mass can be reliably determined for the respective application. In addition, it is the object of the present invention to provide a squeezing device for carrying out such a method. disclosure of the invention This object is achieved by the method for operating a squeezing device according to claim 1. Furthermore, the object is achieved by a squeezing device according to claim 11. Further embodiments are specified in the dependent claims. According to one aspect of the invention, a method is provided for operating a dispensing device which can be brought into operative connection with a cartridge provided with a mixer, wherein the dispensing device has a control device and a distance measuring device, wherein by means of the dispensing device, mass located in the cartridge can be introduced into a hole located in a wall. The method has the following steps: Determination of the depth of the borehole using the distance measuring device; Determining or setting a bore diameter; Calculation of the internal volume of the borehole; Determining or setting a volume of a part of an element, in particular an anchor rod, to be arranged within the bore; Subtraction of the volume from the calculated internal volume of the bore to a filling volume; Setting the determined filling volume in the squeezing device for the output of a subsequent squeezing process. The method according to the invention makes it possible to determine the filling volume required for the respective application very precisely and reliably prevents less or more mass than desired from being filled into the hole. This ensures that the element is held securely in the hole. On the other hand, the required use of material is optimized and reliably prevents mass or material from escaping from the hole after the element has been arranged in the hole. The dispensing device can basically be any type of dispensing device or dispenser, whereby the dispensing device can be operated mechanically, electrically, hydraulically, pneumatically or the like. In an advantageous embodiment of a method according to the invention, it is provided that a speed at which the squeezing device is moved relative to the surface of the wall during a filling process is determined, wherein a filling process of the bore is carried out depending on the determined speed. In particular, a mass flow output by the squeezing device is controlled or regulated. This has the advantage that, for example, it is easy to prevent a mixer tip from coming into contact with the mass during a filling process and thereby becoming dirty. In addition, by adapting the output quantity to the speed, it can be ensured that the inner area of the bore in particular is completely filled. The speed at which the squeezing device is moved relative to the surface of the wall during a filling process is determined in particular by c