DE102022106067A1 - Adhesive device and method for gluing a pipeline to a plate-shaped component - Google Patents

Abstract

The invention relates to an adhesive device for gluing a pipeline (1) to a plate-shaped component (2) with a frame (6), a support (9, 10, 11) for horizontal support of the component (2) and a support on the frame (6 ) Above the support (9, 10, 11) in a first horizontal axis (8) and a second horizontal axis (22) perpendicular to it, the adhesive head (3) can be moved, on which a positioning device (55, 56) for positioning the pipeline (1 ) on the component (2), an application device (57, 58, 59) for applying an adhesive tape to the pipeline (1) and a pressure device (60, 61) for pressing the adhesive tape onto the pipeline (1) are arranged. According to the invention, the gluing head (3) is arranged on a cross slide (24, 27) that can be moved about a vertical axis of rotation (31) on the frame (6).

Description

The invention relates to an adhesive device and a method for gluing a pipeline to a plate-shaped component.

Up to now, pipes used as refrigerant lines for refrigerators or other cooling devices have been glued to a housing wall using positioning templates and adhesive tapes. The pipes, which are usually bent in a meandering shape, are first aligned by manually inserting them into a positioning template before an adhesive strip is applied to the pipe. However, since the pipeline must be fixed at least at the beginning and at the end and there is often a bending tolerance of several mm for each bend, the tolerances accumulate and create an ever larger offset between the theoretical and practical bonding line. This can lead to jamming of the adhesive rolls, asymmetrical gluing and a resulting poor thermal connection between the pipeline and the housing wall. In addition, in the previously known devices, the adhesive tape can only be applied to the pipeline in one direction, resulting in many empty runs and therefore relatively long cycle times. In addition, the pipe must be held in place and protected against kinking every time the glue is started again. This is time-consuming and involves a lot of effort.

The object of the invention is to create an adhesive device and a method for gluing a pipeline to a plate-shaped component of the type mentioned at the outset, which enable the pipeline to be fastened quickly and in a precise position using an adhesive tape.

This object is achieved by an adhesive device for gluing a pipeline to a plate-shaped component with the features of claim 1 and by a method for gluing a pipeline to a plate-shaped component with the features of claim 14. Appropriate refinements and advantageous developments of the invention are specified in the subclaims.

The gluing device according to the invention for gluing a pipeline to a plate-shaped component contains a frame, a support for horizontal support of the component and an adhesive head which can be moved on the frame above the support in a first horizontal axis and a second horizontal axis perpendicular thereto, on which a positioning device is used Positioning of the pipeline on the component, an application device for applying an adhesive tape to the pipeline and a pressure device for pressing the adhesive tape onto the pipeline are arranged. The gluing head is rotatable about a vertical axis of rotation and arranged on a cross slide that can be moved on the frame. Due to the arrangement of the adhesive head, which can be rotated about a vertical axis, all meandering or otherwise curved pipelines can be quickly, securely and precisely positioned on the plate-shaped component in a continuous cycle without an empty return with just one adhesive head. The movement of the adhesive head can be optimally adapted to the course of the pipe without the need for complex insertion templates, so that bending tolerances in the pipes can be compensated for and the application rollers for the adhesive tape can follow the course of the pipe, so that a precisely positioned and bubble-free application of the Adhesive tape with an optimal connection of the pipeline to the component is made possible. Due to the improved movement options, the pipes can be attached quickly and relatively short cycle times are possible.

To operate the positioning device, the application device and the pressure device, a plurality of drive plungers which can be moved vertically via a cam disk drive can expediently be arranged in a housing of the adhesive head.

The positioning device can contain a guide device arranged at the lower end of a second drive plunger with two mutually displaceable angular guide elements and a drive which can be actuated by a first drive plunger for closing or opening the two guide elements.

In a further expedient embodiment, the application device can have an application head which is arranged at the lower end of a fourth drive plunger and can be pivoted about a transverse axis and can be pivoted by a third drive plunger, with a guide roller for guiding the adhesive tape and a support roller arranged at the lower end of a fifth drive plunger.

The pressure device can advantageously contain several pressure rollers arranged next to one another, which are arranged via corresponding holders at the lower ends of further pressure rams.

In a further advantageous embodiment, the adhesive head on the cross slide is not only rotated vertically via a corresponding drive Axis rotatable, but also displaceable in a vertical axis. This means that the pressure force of the pressure device can be changed if necessary.

The cross slide can be formed from a cross member which can be moved on the frame via guide rails and a drive in the direction of the second horizontal axis and a slide which can be moved on the cross member via a drive in the direction of the first horizontal axis.

Preferably, a pre-positioning gripper can also be arranged on the frame for aligning the pipeline in the transverse and longitudinal directions at the start of the gluing process. The prepositioning gripper can contain a gripper arrangement with two adjustable gripper jaws that can be moved in several axes.

The support for horizontal support of the component expediently has a front support area with a support table that can be lowered and raised, a middle work area with a work support and a rear removal area with a removal surface. A tilting device can be provided at the rear removal area.

A transport device for displacing the plate-shaped component in the direction of the first horizontal axis is preferably arranged on the support. The transport device can consist of several parallel conveyor belts guided over rollers. The conveyor belts can, for example, be raised and lowered relative to the support surfaces using vertically movable guide strips, so that the plate-shaped components can be transported without damaging the sensitive underside of the component. By lowering the conveyor belts in the middle support area, the component can be supported over a large area during the adhesive tape, which enables a stable support and precise bonding.

A method according to the invention for gluing a pipeline to a plate-shaped component with an adhesive device described above is characterized in that an adhesive tape is applied to a first straight area of the pipeline by moving the adhesive head in a first direction, after reaching the end of the first straight In the area of the pipeline, the adhesive head is rotated about the vertical axis of rotation and an adhesive tape is applied to the following further straight area of the pipeline by moving the adhesive head in the direction opposite to the first direction or in a direction rotated by 90 °. This means that all straight areas of the pipeline can be glued in one continuous pass.

• 1 eine erfindungsgemäße Klebevorrichtung zum Ankleben einer Rohrleitung auf einem plattenförmigen Bauteil in einer schematischen Perspektivansicht;
• 2 die in 1 dargestellte Klebevorrichtung in einer Seitenansicht;
• 3 die in 1 dargestellte Klebevorrichtung in einer Vorderansicht;
• 4 ein plattenförmiges Bauteil mit einer Rohrleitung und einem Klebekopf in einer Perspektivansicht;
• 5 ein plattenförmiges Bauteil mit einer Rohrleitung und einem Vorpositioniergreifer in einer Perspektivansicht;
• 6 einen Klebekopf in einer Vorderansicht und
• 7 einen Klebekopf in einer Perspektivansicht.

Further special features and advantages of the invention result from the following description of a preferred exemplary embodiment based on the drawing. Show it:

• 1 an adhesive device according to the invention for gluing a pipeline to a plate-shaped component in a schematic perspective view;
• 2 in the 1 Gluing device shown in a side view;
• 3 in the 1 Gluing device shown in a front view;
• 4 a plate-shaped component with a pipeline and an adhesive head in a perspective view;
• 5 a plate-shaped component with a pipeline and a pre-positioning gripper in a perspective view;
• 6 an adhesive head in a front view and
• 7 an adhesive head in a perspective view.

In the 1 until 3 is an adhesive device for gluing an in 4 shown meandering curved pipeline 1 on a panel-like or plate-shaped component 2 shown. This device is designed to attach a pipeline 1 of a so-called skin condenser, which serves as a refrigerant line, to a plate-shaped component 2 designed, for example, as a refrigerator wall, by applying an adhesive strip with the aid of an adhesive head 3 that can be moved in several axes in such a way that between the pipeline 1 and the plate-shaped component 2 the best possible heat transfer can take place.

The ones in the 1 until 3 Gluing device shown schematically in various views contains a portal-like frame 6 composed of vertical supports 4 and cross members 5, on which a transport device 7 for displacing a plate-shaped component 2 in a first horizontal axis (X-axis) 8 and a horizontal support with a front support area 9 , a middle work area 10 and a rear removal area 11 are arranged. On the front support area 9 there is a front support table 12 that can be lowered and raised, on the middle work area 10 there is a work support 13 and on the rear removal area 11 there is a removal surface 14 with a tilting device 15 for removing or transporting the finished components 2. The In the embodiment shown, transport device 7 consists of several mutually parallel conveyor belts 17 guided over rollers 16, through which a plate-shaped component 2 can be transported from the front support table 12 to the work support 13 and from there to the removal surface 14 after the pipe 2 has been glued on. The front support table 12 of the support can be lowered relative to the conveyor belts 17, so that a component 2 placed on the support table 12 can be placed on the upper run of the conveyor belts 17 by lowering the support table 12 and from there first to the middle work support 13 and then to the rear Removal surface 14 can be transported.

The tilting device 15 arranged in the area of the removal surface 14 contains two disk-shaped pivoting elements 18 integrated into the removal surface 7, which can be pivoted about a horizontal transverse axis between a receiving position with a horizontal support surface 19 and a backwards tilted discharge position with a backwards inclined support surface 19. The swivel elements 18, which are designed in the form of a disk segment, are arranged in corresponding recesses 20 in the removal surface 14 in such a way that the upper support surface 19 of the swivel elements 18 in the horizontal receiving position lies on a plane with the removal surface 14 or slightly below the removal surface 14. The pivoting elements 13 have a rear contact part 21 for holding the component 2 transported by the conveyor belts 17 onto the removal surface 14 in a rear end position. By means of the two pivoting elements 18, a component 2 equipped with the pipeline 1 can be moved from the horizontal into a tilted backward position for removal.

On the portal-like frame 6 is above the work surface 13 in the 6 and 7 separately shown adhesive head 3 in the direction of the first horizontal axis (X-axis) 8, a second horizontal axis (Y-axis) 22 perpendicular to the first horizontal axis 8 and in the direction of a third vertical axis perpendicular to the two horizontal axes 8 and 22 ( Z axis) 23 arranged adjustable. The gluing head 3 can therefore be moved relative to the support in the three mutually orthogonal axes 8, 22 and 23. For this purpose, a horizontal cross member 24 perpendicular to the second axis 22 is slidably guided over guide rails 25 on the portal-like frame 6 and is arranged to be motor-driven in the direction of the second horizontal axis 22 by means of a drive 26 designed here as a belt drive. There is an in on the cross member 24 2 recognizable carriage 27 is arranged to be displaceable in the direction of the first horizontal axis 8 via linear guides and a drive 28 designed here as a threaded rod drive. On the carriage 27, the working head 3 can be moved vertically in the direction of the third axis 23 via an angular support 29 and is arranged to be rotatable by 360 ° about a vertical axis of rotation 31 by a drive 30.

There is also an in on the portal-like frame 6 5 separately shown pre-positioning gripper 32 arranged. How out 5 As can be seen, the pre-positioning gripper 32 contains a gripper arrangement 33 which can be moved in several axes and has two adjustable gripper jaws 34 for positioning the pipeline 1 at the beginning of the gluing process. The gripper arrangement 33 is arranged at the end of a gripper arm 35 which can be moved horizontally in the direction of the first horizontal axis 8. The gripper arm 35 is arranged on a holder 39 which is guided via horizontal guide rails 36 on a support plate 37 in the direction of the second horizontal axis 28 and can be moved by means of a drive 38. With the help of a sensor, not shown, the beginning of the pipe 1 arranged on the plate-shaped component 2 can be detected during the transport of the component 2 into the work area 10, so that the beginning of the pipe is positioned in the transverse and longitudinal directions via the pre-positioning gripper 32 and held during the gluing process can.

Like from the 6 and 7 As can be seen, the adhesive head 3 arranged on the angular carrier 29 has a housing 40 attached to the underside of the carrier 29. Via a bearing bushing 41 on the top of the carrier 29, the adhesive head 3 is arranged on the slide 27 so that it can be rotated through 360 ° about the vertical axis of rotation 31 on the slide 27. On the carrier 29 there is a receptacle for attaching a carrier roll 42 for an adhesive tape to cover and attach the pipeline 1 to the component 2. A first deflection roller 43 is also attached to the carrier 29 for guiding the adhesive tape removed from the carrier roll 42 to a second deflection roller 44 arranged on the housing 40. To apply the adhesive tape to the areas of the pipeline 1 between the bends, the working head 3 is moved along an in the 6 and 7 move in the direction of movement marked by arrow 45. A first sensor 47 for detecting the course of the pipeline 1 is attached to a front side 46 of the housing 40 that points forward when the working head 3 moves in the direction of the arrow 45 during the gluing process. Another sensor 49 is attached to the rear side 48 of the housing 40 in the direction of movement.

In 6 It can be seen that in the housing 40 of the adhesive head 3 there are several drive plungers 50a to 50h arranged next to one another and movable vertically via a cam disk drive are. The cam disk drive contains a plurality of cam disks 52 arranged within the housing 40 on a common drive shaft 51, each of which is connected via toothing to an associated drive plunger 50a to 50h for their vertical movement. The rotation of the cam disks 52 for the up and down movement of the drive tappets 50a to 50h takes place via the drive shaft 51 through an in 4 recognizable motor 53 and a belt drive 54.

On the underside of the gluing head 3 there is a positioning device which can be actuated by the two front drive plungers 50a and 50b in the direction of movement of the working head 3 during the gluing process, for positioning and holding the pipeline 1 during the application of the adhesive tape. An application device arranged downstream of the positioning device for applying the adhesive tape to the pipeline 1 is also arranged on the underside of the working head. In addition, on the underside of the working head 3 there is a pressure device arranged downstream of the application device in the direction of movement of the adhesive head 3 for precisely pressing and enclosing the pipeline 1 with the adhesive tape.

In the embodiment shown, the positioning device has a guide device arranged at the lower end of a second drive plunger 50b with two mutually displaceable angular guide elements 55 and a drive 56 which can be actuated by a first drive plunger 50a for closing or opening the two guide elements 55. The drive 56 for closing or opening the two guide elements 55 is designed as a rack drive in the exemplary embodiment shown. The application device contains an application head 57, which is arranged at the lower end of a fourth drive plunger 50d and can be pivoted about a transverse axis and can be pivoted by a third drive plunger 50c, with a guide roller 58 for guiding the adhesive tape, and a support roller 59 arranged at the lower end of a fifth drive plunger 50e. The one downstream of the application device The pressure device consists of three pressure rollers 60 arranged next to one another, which are arranged via corresponding holders 61 with, for example, resilient intermediate elements at the lower ends of a sixth, seventh and eighth drive plunger 50f, 50g and 50h. While the support roller 59 contains a cylindrical outer surface, the three consecutive pressure rollers 60 have a profile adapted to the outer contour of the pipeline so that the adhesive tape can nestle well around the pipeline. There is also an unrecognizable separating device attached to the adhesive head 3 for separating the adhesive tape after the gluing process has ended.

To attach the pipeline 1 to the plate-shaped component 2, a component 2 with the pipeline 1 arranged thereon is first placed on the front support table 12. By subsequently lowering the support table 12, the component 2 can then come into contact with the conveyor belts 17. By appropriately driving the conveyor belts 17, the plate-shaped component 2 can then be transported onto the work table 13 with the pipeline 1 not yet fixed. About the in 5 Using the pre-positioning gripper 32 shown, the pipeline 1 can then be positioned in the transverse and longitudinal directions before the actual gluing process begins and can also be held at the first straight area of the pipeline 1 at the beginning of the gluing process. From the adhesive head 3 positioned above the beginning of the pipeline 1, the angular guide elements 55 of the positioning device, the application head 57 with the guide roller 58, the support roller 59 and the pressure rollers 60 can then be moved in a predetermined manner by appropriately controlling the pressure plungers 50a to 50h with the help of the cam disk drive Sequence can be moved down and operated. By subsequently moving the adhesive head 3 in the direction of the second horizontal axis 22, the adhesive tape unwound from the transport roller 42 can then be applied to the first straight area of the pipeline 1 and pushed over the pressure rollers 60. Before reaching the pipe bend, the angular guide elements 55 can then be moved apart again and raised before the adhesive tape is separated and the application head 57, the support roller 59 and the pressure rollers 60 are also raised again one after the other. By subsequently moving the gluing head 3 in the direction of the first horizontal axis 8 and rotating the gluing head 3 by 180°, the gluing of the second straight area of the pipeline can then be continued immediately, as shown in 4 is shown. This means that all straight areas of the pipeline 1 can be glued in one continuous pass. After the gluing process has ended, the plate-shaped component 2 can then be transported to the removal surface 14 by appropriate drive of the conveyor belts 17 and moved into a tilted removal position via the tilting device 15.

Reference symbol list

1

pipeline

2

Plate-shaped component

3

Adhesive head

4

Vertical support

5

Cross beam

6

portal

7

Transport device

8th

First axis

9

Support area

10

Workspace

11

Collection area

12

Support table

13

Work requirement

14

removal area

15

Tilting device

16

role

17

Conveyor belt

18

Swivel element

19

Support surface

20

recess

21

Plant part

22

Second axis

23

Third axis

24

Cross beam

25

Guide rail

26

drive

27

Sleds

28

drive

29

carrier

30

drive

31

Vertical axis

32

Pre-positioning gripper

33

Gripper arrangement

34

gripper jaw

35

gripper arm

36

Guide rail

37

carrier plate

38

drive

39

bracket

40

Housing

41

Bearing bushing

42

Carrier role

43

First pulley

44

Second pulley

45

drive tappet

46

Front side

47

sensor

48

Rear side

49

sensor

50a

First drive pushrod

50b

Second drive plunger

50c

Third drive plunger

50d

Fourth

50e

Fifth drive plunger

50f

Sixth drive plunger

50g

Seventh drive ram

50h

Eighth drive tappet

51

drive shaft

52

cam

53

engine

54

Belt drive

55

Leadership element

56

drive

57

Order header

58

leadership role

59

Support roller

60

pressure roller

61

bracket

Claims (14)

Adhesive device for gluing a pipeline (1) to a plate-shaped component (2) with a frame (6), a support (9, 10, 11) for horizontal support of the component (2) and a support on the frame (6) above the support (9, 10, 11) in a first horizontal axis (8) and a second horizontal axis (22) perpendicular thereto, movable adhesive head (3), on which a positioning device (55, 56) for positioning the pipeline (1) on the component (2), an application device (57, 58, 59) for applying an adhesive tape to the pipeline (1) and a pressure device (60, 61) for pressing the adhesive tape onto the pipeline (1) are arranged, characterized in that the adhesive head (3) is arranged rotatably about a vertical axis of rotation (31) on a cross slide (24, 27) which can be moved on the frame (6). Gluing device Claim 1 , characterized in that in a housing (30) of the adhesive head (3) there are several drive plungers (50a to 50h) which can be moved vertically via a cam disk drive (51, 52) for actuating the positioning device (55, 56), the application device (57, 58, 59) and the pressure device (60, 61) are arranged. Gluing device Claim 2 , characterized in that the positioning device (55, 56) has a guide device arranged at the lower end of a second drive plunger (50b) with two mutually displaceable angular guide elements (55) and a drive (56) which can be actuated by a first drive plunger (50a) for closing or opening the two guide elements 55. Gluing device Claim 2 or 3 , characterized in that the application device (57, 58, 59) has an application head (57) which is arranged at the lower end of a fourth drive plunger (50d) so that it can pivot about a transverse axis and can be pivoted by a third drive plunger (50c) with a guide roller (58) for guidance of the adhesive tape and a support roller (59) arranged at the lower end of a fifth drive plunger (50e). Gluing device according to one of the Claims 1 until 4 , characterized in that a separating device for separating the adhesive tape is arranged on the adhesive head (3). Gluing device according to one of the Claims 2 until 5 , characterized in that the pressure device (60, 61) contains a plurality of pressure rollers (60) arranged next to one another, which are arranged via corresponding holders (61) at the lower ends of further pressure rams (50f. 50g, 50h). Gluing device according to one of the Claims 1 until 5 , characterized in that the adhesive head (3) on the cross slide (24, 27) is arranged not only to be rotatable about the vertical axis (31), but also to be displaceable in a vertical axis (23). Gluing device according to one of the Claims 1 until 6 , characterized in that the cross slide (24, 27) has a cross member (24) which can be moved on the frame (6) via guide rails (25) and a drive (26) in the direction of the second horizontal axis 22 and one on the cross member (24) contains a carriage (27) which can be displaced in the direction of the first horizontal axis (8) via a drive (28). Gluing device according to one of the Claims 1 until 7 , characterized in that a pre-positioning gripper (32) is arranged on the frame (6) for aligning the pipeline (1) in the transverse and longitudinal directions at the start of the gluing process. Gluing device Claim 8 , characterized in that the pre-positioning gripper (32) contains a gripper arrangement (33) which can be moved in several axes and has two adjustable gripper jaws (34). Gluing device according to one of the Claims 1 until 9 , characterized in that the support (9, 10, 11) for horizontal support of the component (2) has a front support area (9) with a support table (12) that can be lowered and raised, a middle work area (10) with a work support (13 ) and a rear removal area (11) with a removal surface (14). Gluing device according to one of the Claims 1 until 11 , characterized in that a transport device (7) for displacing the plate-shaped component (2) in the direction of the first horizontal axis (8) is arranged on the support (9, 10, 11). Gluing device Claim 12 , characterized in that the transport device (7) consists of several mutually parallel conveyor belts (17) guided over rollers (16). Method for gluing a pipeline to a plate-shaped component using an adhesive device according to one of Claims 1 until 13 , characterized in that an adhesive tape is applied to a first straight area of the pipeline (1) by moving the adhesive head (3) in a first direction, that after reaching the end of the first straight area of the pipeline (1), the adhesive head (3) rotated about the vertical axis of rotation (31) and an adhesive tape is applied to the following further straight area of the pipeline (1) by moving the adhesive head (3) in the direction opposite to the first direction or in a direction rotated by 90 °.

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