DE102022203003A1 - Device for applying seals to doors, in particular vehicle doors, and method for applying seals to doors, in particular vehicle doors - Google Patents

Abstract

The present invention relates to a device for applying seals to doors, in particular vehicle doors, comprising a roller buffer (1), a punching unit (2) and a cutting and application head (3), the roller buffer (1) being used to buffer sealing tape (D ) is set up in front of the punching unit (2), the punching unit (2) being set up to introduce water drainage holes in the sealing tape (D), the cutting and application head (3) being used to apply and cut the sealing tape (D) provided with water drainage holes. is set up, the device being equipped with a marking device (5) for marking the sealing start and sealing end of the sealing tape to be applied, an intermediate buffer (4) being provided between the punching unit (2) and the cutting and application head (3). for buffering sealing tape (D) provided with water drainage holes in front of the cutting and application head (3), and a method for applying seals to doors, in particular vehicle doors, with a device according to the invention.

Description

The present invention relates to a device for applying seals to doors, in particular vehicle doors, according to the preamble of claim 1, and a method for applying seals to doors, in particular vehicle doors, according to the preamble of claim 4.

Devices for applying seals to vehicle doors are known. These devices are designed to automatically apply, in particular to glue, a seal in the form of a theoretically infinite sealing tape at a predetermined location on a vehicle door. For seals for doors, especially vehicle doors, water drainage holes must also be provided at predetermined locations. According to the prior art, a device is known, in particular a stationary rolling system, in which a punching unit, i.e. a unit for introducing holes in the seal, is fixedly arranged between a roller buffer and a stationary cutting and application head. The roller buffer stores and dispenses the seal buffered as an endless belt, while the cutting and application head applies and cuts the seal onto the door.

In this system it is also intended to make water drainage holes at the appropriate location on the seal.

Due to the system, a certain length of sealing tape is accommodated in the cutting and application head.

Due to its inflexibility, the system cannot be used or can only be used insufficiently for applying door seals with a significantly shorter length, e.g. for frameless doors, since the geometrically predetermined distance between the punching unit and the cutting knife located in the head with which the endless seal strip is cut off is: The seal end or the beginning of a new seal is determined is too large for these seals. In other words, for the seal currently to be applied, the water drainage holes cannot be made by the upstream punching unit, since the sealing tape to be applied is already in the cutting and application head.

This is where the present invention comes into play and makes it its task to propose an improved device for applying seals to doors, in particular vehicle doors, in particular to propose a device that can be used more flexibly, in particular with regard to the length of the seal and the position of the water drainage holes.

According to the invention, this object is achieved by a device with the characterizing features of claim 1. The fact that the device is equipped with a marking device for marking the sealing start and sealing end of the sealing tape to be applied, an intermediate buffer being provided between the punching unit and the cutting and application head, which is used to buffer sealing tape provided with water drainage holes in front of the cutting and application head is set up, the device can be adapted more flexibly to the length of the seal to be applied, in particular comparatively short seal lengths can be processed, which can be accommodated in the intermediate buffer.

In other words, in order to place the water drainage holes in a suitable location for any seal length, a marking device, preferably the already existing punching device, is provided. In addition, an intermediate buffer, in particular a length compensation device, e.g. lifting frame with roller and distance measurement, is provided, which creates a reproducible distance between the start of the seal and the (water drainage) holes.

The seal start marking can then be detected on the head using a sensor and the signal for the punching unit can be generated. The distance between the cutting knife and the punching unit should not be longer than the shortest seal length, especially without intermediate buffer storage.

Further advantageous embodiments of the proposed invention result in particular from the features of the subclaims. The objects or features of the various claims can in principle be combined with one another in any way.

In an advantageous embodiment of the invention it can be provided that the punching unit is designed as a marking device. In this respect, the punching unit fulfills a dual function. Of course, it is also conceivable to provide a punching unit and a separate marking device.

• 1 eine schematische Darstellung einer Einrichtung zur Applikation von Dichtungen auf Türen, insbesondere Fahrzeugtüren, gemäß dem Stand der Technik;
• 2 eine schematische Darstellung einer erfindungsgemäßen Einrichtung zur Applikation von Dichtungen auf Türen, insbesondere Fahrzeugtüren;
• 3 eine schematische Darstellung eines Dichtungsbandes mit einer Lochposition und eines Dichtungsstoßes.

Further features and advantages of the present invention will become clear from the following description of preferred exemplary embodiments with reference to the accompanying illustrations. Show in it

• 1 a schematic representation of a device for applying seals to doors, in particular vehicle doors, according to the prior art;
• 2 a schematic representation of a device according to the invention for applying seals to doors, in particular vehicle doors;
• 3 a schematic representation of a sealing tape with a hole position and a seal joint.

Features and details that are described in connection with a method naturally also apply in connection with the device according to the invention and vice versa, so that reference is or can always be made to each other with regard to the disclosure of the individual aspects of the invention. In addition, a possibly described method according to the invention can be carried out with the device according to the invention.

The terminology used herein is only for the purpose of describing particular embodiments and is not intended to limit the disclosure. As used herein, the singular forms “a” and “the” are intended to include the plural forms unless the context otherwise clearly indicates this. It will also be understood that the terms "comprising" and/or "comprising" when used in this specification specify the presence of, but not the presence of, the features, integers, steps, operations, elements and/or components mentioned or exclude the addition of one or more other features, integers, steps, operations, elements, components and/or groups thereof. As used herein, the term “and/or” includes any and all combinations of one or more of the associated listed items.

The following reference symbols are used in the figures:

D

(endless) seal or sealing tape

W

Water drainage hole

A

Seal joint

S

Route

1

Roller buffer

2

Punching unit

3

Cutting and application head

4

Intermediate buffer

5

Marking device

31

cutting knife

In the 1 is a schematic representation of a device for applying seals to doors, in particular vehicle doors, according to the prior art. The device essentially comprises a roller buffer 1, a punching unit 2, and a cutting and application head 3 with a cutting knife 31.

Further details of the device for applying seals according to 1 arise in particular from a cursory description of the procedure.

The (endless) seal or sealing tape D (hereinafter referred to as sealing tape) is fed to the device via the roller buffer. The roller buffer 1 is set up to buffer a predetermined length of the sealing tape D, i.e. a predetermined length is stored in the roller buffer 1 and can be retrieved from there. For this purpose, the roller buffer has, for example, two rollers spaced apart from one another in the direction of gravity, around which the sealing tape is placed in a loop. The length to be buffered can be determined accordingly depending on the vertical distance between the rollers and the number of rollers or loops. The sealing tape D is transferred from the roller buffer 1 to the punching unit 2. The punching unit 2 is set up to punch holes, in particular water drainage holes W, into the sealing tape D. The sealing tape D is transferred from the punching unit 2 to the cutting and application head 3. A distance S between the punching unit 2 and the cutting and application head 3 is indicated. The cutting and application head 3 is set up to apply the sealing tape D to the door at a predetermined location. The cutting and application head 3 is also set up to cut the sealing tape D with the help of its cutting knife 31. Accordingly, the sealing tape D, which is equipped with water drainage holes, is applied to the door using the cutting and application head 3 and cut off at the appropriate point using the cutting knife 31. The result is a sealing strip that runs around the door contour, the ends of which are brought together at a sealing joint. The water drainage holes W are made in the sealing tape D at the appropriate location.

However, the disadvantage in this context is that the distance S between the punching unit 2 and the cutting and application head 3 can be too long for short sealing tape lengths.

In the 2 a schematic representation of a device according to the invention for the application tion of seals on doors, especially vehicle doors.

The device according to the invention essentially comprises a roller buffer 1, a punching unit 2, and a cutting and application head 3 with a cutting knife 31. According to the invention it is also provided that the device is equipped with an intermediate buffer 4 and a marking device 5.

Further details of the device according to the invention for applying seals according to 2 arise in particular from a cursory description of the procedure. It goes without saying that only a few selected process steps are shown here, as they are helpful for understanding the process according to the invention. The method can include further steps or intermediate steps known to those skilled in the art.

With regard to the basic properties of roller buffer 1 and punching unit 2, reference can essentially be made to the statements made above.

The sealing tape D is transferred from the roller buffer 1 to the punching unit 2. The punching unit 2 is set up to punch holes, in particular water drainage holes, into the sealing tape D. In addition, however, a marking device 5 is provided for marking the start and end of the sealing tape to be applied. The cutting head 31 of the cutting and application head 3 can in turn be controlled from these markings.

However, as already indicated above, an intermediate buffer 4 is provided between the punching unit 2 and the cutting and application head 3. What is meant here by an arrangement between the punching unit 2 and the cutting and application head 3 is that the punched sealing tape D is first fed to the intermediate buffer 4 and then to the cutting and application head 3.

The intermediate buffer 4 is basically a buffer that works according to the roller principle. To distinguish it from the already existing roller buffer 1, the intermediate buffer 4 present here is referred to as an intermediate buffer according to its position.

The intermediate buffer 4 makes it possible for the sealing tape D required for the application to be accommodated in the intermediate buffer 4 with the water drainage holes in the correct position. It is provided here that at least one length to be applied is always buffered in the intermediate buffer, preferably even more than one length to be applied. In other words, the intermediate buffer buffers the sealing tape that is already provided with water drainage holes in the right places and is required for application to the door.

1. a) Übergabe eines Dichtungsbandes D an den Rollenpuffer 1 und Pufferung einer Dichtungsbandlänge;
2. b) Übergabe des gepufferten Dichtungsbandes D von dem Rollenpuffer 1 an die Stanzeinheit 2 und Stanzen von Wasserablauflöchern W in das Dichtungsband D, sowie Einbringen von Markierungen für den Anfang und das Ende der zu applizierenden Dichtung durch die Markierungsvorrichtung 5;
3. c) Übergabe von mindestens einer, vorzugsweise mehrerer, für eine Türapplikation gestanzte Länge an Dichtungsband D mit Wasserablauflöchern W an den Zwischenpuffer 4;
4. d) Übergabe der mindestens einen, vorzugsweise mehrerer, für eine Türapplikation gestanzte Länge an Dichtungsband D mit Wasserablauflöchern W aus dem Zwischenpuffer 4 an den Schneid- und Applikationskopf 3;
5. e) Aufbringen des zugeführten Dichtungsbands D mit Wasserablauflöchern W auf eine Tür, insbesondere Fahrzeugtür;
6. f) Abschneiden des Dichtungsbandes D mit Wasserablauflöchern W an markierter Stelle durch den Schneidkopf 31.

The method according to the invention for applying seals to doors, in particular vehicle doors, with a device according to at least one of the preceding claims, is therefore characterized by the following method steps:

1. a) transferring a sealing tape D to the roller buffer 1 and buffering a length of sealing tape;
2. b) transferring the buffered sealing tape D from the roller buffer 1 to the punching unit 2 and punching water drainage holes W in the sealing tape D, as well as introducing markings for the beginning and the end of the seal to be applied by the marking device 5;
3. c) transfer of at least one, preferably several, lengths of sealing tape D with water drainage holes W punched for a door application to the intermediate buffer 4;
4. d) transferring the at least one, preferably several, length of sealing tape D with water drainage holes W punched for a door application from the intermediate buffer 4 to the cutting and application head 3;
5. e) applying the supplied sealing tape D with water drainage holes W to a door, in particular a vehicle door;
6. f) Cutting off the sealing tape D with water drainage holes W at the marked point using the cutting head 31.

It is preferably provided that process steps d) to f) are repeated accordingly in accordance with the lengths of sealing tape D with water drainage holes W pre-punched and buffered in the intermediate buffer.

In the 3 A sealing tape applied to a door is shown schematically. In particular, the position of a water drain hole W and a seal joint A can be seen. The seal joint A marks the point at which the sealing tape D is brought together again after a cycle around the door.

Claims (4)

Device for applying seals to doors, in particular vehicle doors, comprising - a roller buffer (1), a punching unit (2) and a cutting and application head (3), wherein - the roller buffer (1) for buffering sealing tape (D) in front of the Punching unit (2) is set up, wherein - the punching unit (2) is set up for introducing water drainage holes in the sealing tape (D), wherein - the cutting and application head (3) is set up for applying and cutting the sealing tape (D) provided with water drainage holes is, characterized in that - the device is equipped with a marking device (5) for marking the start and end of the sealing tape to be applied, wherein - an intermediate buffer (4) between the punching unit (2) and the cutting and application head (3) is provided, which is set up to buffer sealing tape (D) provided with water drainage holes in front of the cutting and application head (3). Facility in accordance Claim 1 , characterized in that the punching unit (2) is designed as a marking device (5). Method for applying seals to doors, in particular vehicle doors, with a device according to at least one of the preceding claims, characterized by the following method steps: a) transferring a sealing tape (D) to the roller buffer (1) and buffering a length of sealing tape; b) transferring the buffered sealing tape (D) from the roller buffer (1) to the punching unit (2) and punching water drainage holes (W) in the sealing tape (D), as well as introducing markings for the beginning and end of the seal to be applied the marking device (5); c) transferring at least one, preferably several, lengths of sealing tape (D) with water drainage holes (W) punched for a door application to the intermediate buffer (4); d) transferring the at least one, preferably several, length of sealing tape (D) with water drainage holes (W) punched for a door application from the intermediate buffer (4) to the cutting and application head (3); e) applying the supplied sealing tape (D) with water drainage holes (W) to a door, in particular a vehicle door; f) Cutting off the sealing tape (D) with water drainage holes (W) at the marked point using the cutting head (31). Procedure according to Claim 3 , characterized by the following process step: - Repeating process steps d) to f) for the length of sealing tape (D) with water drainage holes (W) punched for a door application by feeding it from the intermediate buffer (4).

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