DE102018102947A1 - Device for encapsulating or foaming lid-shaped components - Google Patents

Abstract

Device (10) for encapsulating or foaming cover-shaped components (20), comprising a lower mold (12) and an upper mold (14), at least one insert (50) being provided on at least one side (22; 24) of the lid-shaped component (20) ), wherein positioning means (42; 47; 52) are provided for a positional alignment of the insert (50) and the lid-shaped component (20) on at least one mold (12; 14) and the positioning means (42; 47 ) for aligning lid-shaped components (20) of different sizes at different positions (0, I, II) on the forming tool (12; 14) or with different positionable active surfaces (475A, 475B, 475C; 477A, 477B, 477C) of the positioning means ( 47) act on the lid-shaped component (20).

Description

The invention relates to a device for encapsulating or foaming cover-shaped components according to the preamble of patent claim 1.

A foaming tool is off DE 298 13 174 U1 known. Therein a centering device for flat components, in particular glass panels, is described. These are at least on the side edges with a plastic frame umspritzbar, umschäumbar or umkapselbar. The centering device is formed by springs of the same spring constant, which are arranged opposite one another attacking the component.

The object of the invention is to provide a device which allows foaming and encapsulation cover-shaped components of different sizes in a single tool.

This object is achieved by a device for foaming and encapsulation with the features of claim 1. Advantageous embodiments of the invention are specified in the related subclaims.

With the present invention, a foaming and encapsulation of cover-shaped components - regardless of their size - in a single tool possible.

The field of application of the invention may be foaming tools for the production of sunroof systems for vehicles.

The device according to the invention for encapsulation or foaming of crescent-shaped components has a lower and an upper mold, wherein on at least one side of the lid-shaped component, at least one insert is encapsulated or foamed. Such an insert is used, for example, in a sunroof cover for attaching the actuating mechanism. In this case, positioning means for a positionally accurate alignment of the insert and the cover-shaped component are provided on at least one of the two molds. The positioning means are either positioned at different positions of the mold for aligning lid-shaped components of different sizes or act on the lid-shaped component with one of a plurality of differently positionable active surfaces of the positioning means.

In an advantageous first embodiment, the positioning means for the lid-shaped component with locking elements and the mold in question are provided with complementary counter-locking means.

In a continuation of the aforementioned embodiment, the locking elements and counter-locking means are formed by projections in the positioning and matching recesses in the mold. The locking elements may be formed as recesses or grooves, for example, as bolts or pins and the counter-locking means. By providing a sufficient number of locking elements and counter-locking means a use of cover-shaped components of different sizes in the same foaming tool is possible. This offers the advantage that the diversity of the discs to be encapsulated or to be foamed is increased in a single mold. This reduces the number of forming tools previously required for different lid sizes, which results in a significant cost saving.

In a second embodiment, the positioning means are rotatably mounted and formed with a plurality of spaced at different distances from the axis of rotation active surfaces. These can be mounted in a first embodiment in several stages and in a second embodiment in the manner of a cam disc continuously rotatable.

In both embodiments, it is advantageous if the positioning means have at least one spring-mounted piston or a piston acted upon by compressed air, which acts on an edge of the cover-shaped component. In the present embodiment, the lid-shaped component is a glass sheet for producing a sunroof system for a vehicle.

It is therefore particularly advantageous for dimensionally accurate production of the sunroof system if pistons acted upon in a resilient manner or acted on by compressed air are arranged in the positioning means which can be fitted opposite each other in pairs in the mold. The pistons of the respectively opposite positioning means ideally act with the same force, so that a centering of the lid-shaped component takes place in the mold.

A particularly advantageous development of the device is created so that the positioning means are arranged in both variants for the alignment of the insert regardless of the size of the lid-shaped component at the same point of the mold.

This has the advantage that in the device according to the invention with glass panes of different dimensions, the associated insert part always has the same dimensions and is arranged at the same position.

In a particularly advantageous embodiment, it is provided that the positioning means are arranged on a slide which is slidably movable in a guide and can be fixed relative to the guide. The guide for the carriage can be formed, for example, as a kind of T-slot rail. The positioning means can be secured in this embodiment by a clamping device designed as a fixing screw in the desired position against axial displacement.

• 1A ein in einem unteren Formwerkzeug drehbargelagertes Positioniermittel in einer ersten Position für große deckelförmige Bauteile,
• 1 B ein in einem unteren Formwerkzeug drehbar gelagertes Positionier- mittel in einer zweiten Position für mittelgroße deckelförmige Bautei- le, 1C ein in einem unteren Formwerkzeug drehbargelagertes Positioniermittel in einer dritten Position für kleine deckelförmige Bauteile,
• 2 ein in einem unteren Formwerkzeug auf einem Schlitten drehbar gelagertes Positioniermittel,
• 3A ein in einem unteren Formwerkzeug an einer Konsole drehbar gelagertes Positioniermittel,
• 3B ein in einem unteren Formwerkzeug an einem Konsole drehbargelagertes und als Nockenscheibe ausgebildetes Positioniermittel,
• 4A ein in einem unteren Formwerkzeug linear bewegbar gelagertes Positioniermittel in einer ersten Position,
• 4B ein in einem unteren Formwerkzeug linear bewegbar gelagertes Positioniermittel in einer zweiten Position,
• 4C ein in einem unteren Formwerkzeug linear bewegbar gelagertes Positioniermittel in einer dritten Position,
• 5A ein großes deckelförmiges Bauteil mit einer an einem Randbereich angeordneten Umschäumung,
• 5B ein mittelgroßes deckelförmiges Bauteil mit einer an einem Randbereich angeordneten Umschäumung,
• 5C ein kleines deckelförmiges Bauteil mit einer an einem Randbereich angeordneten Umschäumung und
• 6 ein in Gegenrastmitteln im unteren Formwerkzeug angeordnetes Positioniermittel mit Rastelementen in einer ersten Position.

Embodiments of the device will be explained in more detail with reference to the drawings. It shows:

• 1A a positioning means rotatably mounted in a lower mold in a first position for large lid-shaped components,
• 1 B a positioning means rotatably mounted in a lower mold in a second position for medium-sized lid-shaped components, 1C a rotatably mounted in a lower mold positioning means in a third position for small lid-shaped components,
• 2 a positioning means rotatably mounted in a lower mold on a carriage,
• 3A a positioning means rotatably mounted in a lower mold on a console,
• 3B a rotatably mounted in a lower mold on a console and designed as a cam positioning means,
• 4A a linearly movably mounted positioning means in a lower mold in a first position,
• 4B a linearly movably mounted positioning means in a lower mold in a second position,
• 4C a linearly movably mounted positioning means in a lower mold in a third position,
• 5A a large lid-shaped component with a foam arranged on an edge region,
• 5B a medium-sized lid-shaped component with a foam arranged on an edge region,
• 5C a small lid-shaped component with a arranged on an edge region of the foam and
• 6 a arranged in counter-locking means in the lower mold positioning means with locking elements in a first position.

Generally applies to the device described 10 : The device 10 is through a lower mold 12 and an upper mold 14 educated. In the lower mold 12 becomes an insert part 50 inserted in the lower mold 12 arranged pins 55 by means of in the insert 50 trained holes 54 in the lower mold 12 is positionable. On the insert 50 is a lid-shaped component 20 - For example, a glass plate - miteiner top 24 and a bottom 22 arranged. The insert 50 is about a positioning agent 52 in the desired position in the lower mold 12 positionable ( 5A to 5C ).

After the positioning of the lid-shaped component 20 becomes the upper mold 14 on the lower mold 12 lowered and the tool is closed. A contact surface 141 of the upper mold 14 closes with a contact surface 121 of the lower mold 12 off ( 4A right).

The lid-shaped component 20 can be positioned in the closing process, for example with vacuum cups (not shown), which at the top 24 attack. This offers the advantage of having the bottom 22 , which can be provided with a coating, can not be affected in their quality - for example by Saugerabdrücke - negative. Such a coating can be formed, for example, from a solar laminate, a splinter protection coating, electrochromic, photochromic or other functional composites.

In 1A is the lid-shaped component 20 in the device 10 in a first position 0 , in 1A in a second position I and in 1C in a third position II with oppositely arranged rotatably mounted positioning 47 shown. On a housing 471 of the positioning agent 47 are each three pistons 42 formed of different lengths. As in 1C shown, are the positioning means 47 in a bearing shell 38 on a rail 30 on the lower mold 12 arranged and thereby about a rotation axis 472 in the direction of the arrow D rotatable. In each of the above positions 0 . I . II is the lid-shaped component 20 as well as the insert 50 between two of the oppositely arranged positioning 47 positionable. In each of the pistons 42 is a pestle 474A . 474B . 474C with a formed on this, an effective surface forming pressure plate 475A . 475B . 475C arranged.

In the 1C is left to exemplify two of the plunger 474A . 474B one spring each 473 arranged. The third pestle 474C is also with a spring, not shown 473C applied. In an alternative embodiment, the piston 42 instead of the springs 473A . 473b . 473C be acted upon with compressed air. A force F _K the springs 473A . 473b . 473C acts on the plunger 474A . 474B . 474C on one edge 26 of the lid-shaped component 20 and centered by this.

To different sized lid-shaped components 20 between the positioning means 47 To be able to arrange, the rotatably mounted housing 471 be so rotatable that the pistons 42 when turning for example by a in the 1C indicated recess 124 of the lower mold 12 can be passed. In one in the right part of the 1C variant is shown in place of the piston 42 arranged springs 473A . 473b . 473C a feather 36 between a wall 122 and the rail 30 arranged. At the bottom of the mold 12 arranged rail 30 is a sled 32 longitudinally displaceable. The rail 30 has lateral webs in the manner of a T-slot 125 on, below which the sled 32 slides.

In the first position 0 are large cap-shaped components 20 foamable or paintable. In the second position I are medium-sized lid-shaped components 20 foamable or paintable. In the third position II are small lid-shaped components 20 foamable and paintable. The external dimensions of the lid-shaped component 20 can thus be different in size in the same mold, while that of the insert 50 preferably remain the same, as in particular in 5 shown.

The 2 shows the embodiment 1C enlarged right for the left side with a clamping device 34 , for example, designed as a jacking screw and by a thread in the carriage 32 is screwed through and its tip in the fixing position against the ground 31 the leadership 30 suppressed. To move the carriage 32 becomes the jacking screw 34 in the thread a bit up from the ground 31 moved away.

That in the 3A shown positioning 47 is in a vertical position on a console 126 on the wall 122 of the lower mold 12 arranged.

That in the 3B designed as a cam disk embodiment of the positioning 47 is also on the console 126 the Wall 122 of the lower mold 12 rotatably arranged. Due to the cam shape are in 3A illustrated printing plates 475A . 475B . 475C here as printing surfaces 477A . 477B . 477C educated. printing plates 475A . 475B . 475C and printing surfaces 477A . 477B . 477C are also called the superordinate term active surfaces.

The movement of the positioning means 47 in the respective position can be done in different embodiments, for example manually, electrically, hydraulically, pneumatically or via a transmission (not shown).

In the 4A to 4C are linearly adjustable positioning means 40 in the lower mold 12 arranged. The linearly adjustable positioning means 40 each have one of a housing 421 surrounded pistons 42 on. In a cylindrical cavity 420 of the housing 421 is a spring 423 arranged, which at the same time a rod-shaped shaft 424 surrounds, in the direction of the effective surface 427 one opposite the shaft 424 in diameter extended guidance 425 followed.

The spring 423 is squeezed and the leadership 425 slides on a guide surface 426 of the housing 421 along. Despite moving or moving the housing 421 opposite the mold 12 for adaptation to different cover-shaped components 20 it stays with the spring 423 on the edge 26 applied force F _K constant.

The linear displacement or displacement of the positioning 40 Can via locking elements 44 on the housing 421 and counter-deterrents 45 at the lower mold 12 respectively. The locking elements 44 can as projections 441 and the counter-locking devices 45 as wells 451 be educated. In the 6 these are shown in detail.

By moving or moving the positioning 40 becomes a first distance A0 , a second distance AI and a third distance AII between a wall 122 of the lower mold 12 and a wall 422 of the housing 421 educated.

The 5A to 5C show the lid-shaped component 20 in different sizes in the first, second and third position 0 . I . II the positioning means, not shown there 42 ; 47 ,

For that in the 5A to 5C arranged at the same position insert 50 is in the lower mold 12 a positioning agent 52 intended. This is done by a pin 55 educated. This protrudes into a hole provided on Einlegeteil50 54 and thus allows the alignment of the insert 50 regardless of the size of the lid-shaped component 20 on an axis A52 , The insert 50 lies on a support surface 51 on the bottom 22 the lid-shaped component 20 on and a cranked edge area 53 of the insert 50 makes a gap A between the insert 50 and the bottom 22 , A foam U which serves the insert part 50 with the lid-shaped component 20 to connect firmly is formed by that foamable plastic - for example polyurethane - into a cavity 123 as in the 4A . 4B and 4C represented, the lower mold 12 is foamed. The size and / or shape of the cavity 123 remains constant - regardless of the size of the lid-shaped component 20 ,

The Indian 5A shown first distance A0 corresponds to the distance A0 from the 4A , This distance A0 can by moving the positioning 40 in the outermost position or by positioning the lid-shaped component 20 between the two pistons 42 with the shortest dimension according to 1 . 2 and 3A be generated.

The 6 shows the positioning 40 in the first position 0 with the distance A0 , In this position, a leftmost first projection engages 441 at the bottom of the case 421 in the leftmost first recess 451 at the lower mold 12 on. At the same time, another second advantage takes hold 441 in one of the first well 451 offset inwardly arranged third recess 451 on.

In two other possible positions, the two projections 441 in each case one depression 451 further inward offset. When moving around a depression 451 becomes the position I and when displaced by two wells 451 the position II ingested. The position 0 corresponds to a large lid-shaped component 20 , the position I a medium-sized lid-shaped component 20 and the position II a small lid-shaped component 20.

Instead of the projections 441 and the wells 451 can also use the linear positioning 40 on a sledge 32 be stored as he is in 1C and 2 is shown.

There may also be combinations of linearly adjustable and rotatably mounted positioning 40 or. 47 come into use.

In all embodiments shown in the figures, the positioning means 40 or. 47 at the lower mold 12 arranged. It is understood by those skilled in the art that these also on the upper mold 14 can be arranged.

LIST OF REFERENCE NUMBERS

10

device

12

(lower) mold

121

Contact surface (at 12 to 141 )

122

wall

123

Cavity (for U )

124

Recess (on 12 )

125

web

126

console

14

(upper) mold

141

Contact surface (at 14 to 121 )

20

Lid-shaped component

22

(Sub) page (from 20 )

24

(Top) page (from 20 )

26

Edge (from 20 )

30

Rail (guide)

31

Ground (from 30 )

32

carriage

34

clamping device

36

feather

38

bearing shell

40

Positioning means linear (for 20 )

42

piston

420

cavity

421

Housing (spring-loaded bearing)

422

wall

423

feather

424

shaft

425

guide

426

guide surface

427

Effective area (pressure plate)

44

Locking element (from 40 )

441

Projection (from 44 )

45

Counter-locking means (from 40 ; on 12 ; 14 )

451

Deepening (from 45 ; on 12 ; 14 )

47

Positioning means (rotatable, for 20 )

471

Housing (rotatably mounted)

472

Rotary axis (from 47 )

473A

Spring (from 474A )

473b

Spring (from 474B )

473C

Spring (from 474C )

474A

tappet

474B

tappet

474C

tappet

475A

Effective area (pressure plate)

475B

Effective area (pressure plate)

475C

Effective area (pressure plate)

477A

Effective area (pressure plate)

477B

Effective area (pressure plate)

477C

Effective area (pressure plate)

50

insert

51

contact surface

52

Positioning means (for 50 )

53

Edge area (bent)

54

Bore (in 50 )

55

Pen (from 52 ; on 12 ; 14 )

A

Distance between 53 and 22 )

A0

Distance between 122 and 422 )

AI

Distance between 122 and 422 )

AII

Distance between 122 and 422 )

A52

Axis (from 52 by 55 )

D

direction of rotation

F _K

Power of 427 ; 473A . 473b . 473C )

U

Foaming (on 53 )

0

Position zero (from 40 ; 47 )

I

position I (from 40 ; 47 )

II

position II (from 40 ; 47 )

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 29813174 U1 [0002]

Claims (11)

Device (10) for encapsulating or foaming cover-shaped components (20), comprising a lower mold (12) and an upper mold (14), at least one insert (50) being provided on at least one side (22, 24) of the lid-shaped component (20) ), wherein positioning means (42; 47; 52) are provided for precise alignment of the insert (50) and the lid-shaped component (20) on at least one mold (12; 14), characterized in that the positioning means ( 42, 47) for aligning cover - shaped components (20) of different sizes at different positions (0, I, II) on the forming tool (12; 14) or with different positionable active surfaces (475A, 475B, 475C; 477A, 477B, 477C) of the Positioning means (47) act on the lid-shaped component (20). Device (10) according to Claim 1 , characterized in that the positioning means (42) for the lid-shaped component (20) with locking elements (44) and the respective mold (12; 14) with corresponding counter-latching means (45) are provided. Device (10) according to Claim 2 characterized in that the positioning means (42) and counter-locking means (45) are formed by projections (441) and mating recesses (451). Device (10) according to Claim 1 , characterized in that the positioning means (47) is rotatably mounted steplessly or in several stages. Device (10) according to Claim 4 , characterized in that the positioning means (47) has at different distances from a rotation axis (472) arranged active surfaces (475A, 475B, 475C, 477A, 477B, 477C). Device (10) according to one of the preceding claims, characterized in that the positioning means (42; 47) comprise at least one spring-loaded or compressed-air piston (42) which acts on an edge (26) of the cover-shaped component (20) , Device (10) according to one of the preceding claims, characterized in that a plurality of positioning means (42; 47) can be attached in pairs opposite the forming tool (12; 14). Device (10) according to Claim 6 or 7 , characterized in that the resiliently mounted or acted upon by compressed air piston (42) with a force (F _K ) act, so that a centering of the lid-shaped component (20) in the mold (12; 14) takes place. Device (10) according to one of the preceding claims, characterized in that the positioning means (52) for aligning the insert (50) are arranged at the same location of the mold (12; 14) irrespective of the size of the lid-shaped component (20). Device (10) according to one of the preceding claims, characterized in that the positioning means (52) for aligning the insert (50) of at least one bore (54) in the insert (50) and engaging in this, on the mold (12; 14) arranged pin (55) are formed. Device (10) according to one of Claims 4 to 10 , characterized in that the positioning means (42, 47) are arranged on a carriage (32) which is slidably movable in a guide (30) and can be fixed relative to the guide (30).

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