CN203765846U - Mold for manufacturing motor vehicle polymeric material floor slab and motor vehicle polymeric material floor slab - Google Patents

Abstract

The utility model relates to a mold for manufacturing a motor vehicle polymeric material floor slab. The floor slab comprises at least one metal inserting piece (15, 27 and 29), each inserting piece is in a plate form which is molded in a partially covering manner, i.e., the inserting piece is provided with a part (15b) covered by the polymeric material and a part which is not covered by the polymeric material, and the mold comprises a concave die and a convex die for defining a die cavity, the die cavity comprises a position for receiving the partial metal inserting pieces (15, 27 and 29) which are covered by the polymeric material, and the mold is characterized in that in the position of the die cavity, the mold comprises bulges on the concave die and the convex die, and the thickness of each bulge is greater than a predetermined minimal thickness (H). The utility model also relates to a motor vehicle polymeric material floor slab (20) prepared by virtue of the mold.

Description

The mould on maker motor-car polymeric material floor and motor vehicle polymeric material floor

Technical field

The utility model relates to the technical field of automobile-use plastic floor.

Background technology

The manufacture of motor vehicle starts by welding (French ferrage) step, this welding step is to be welded to one another to realize body in white by each metal parts, then this vehicle body is immersed in electrophoresis bath and carries out anti-corrosion treatment with the surface to metal parts and pad.

After process electrophoresis, vehicle body is through each assembling and the step of spraying paint, until obtain complete vehicle.

Known in addition, replace to by means of metal parts the weight saving that plastic components obtains, in vehicle forms, utilizing plastic components is a success factor for seeking to reduce fuel consumption.

But existence exercisable, the hookup wire of tissue in said sequence (first weld and electrophoresis, then spray paint and assemble) makes to use the vehicle manufacturing process of not following this order to become difficulty, or even is impossible economically.

Therefore, in order to be applicable to existing hookup wire, proposed to manufacture the plastic components with metal insert, these metal inserts allow by welding, plastic components to be assembled on other metal parts in welding step.Especially, in document FR2915129, a kind of motor vehicle floor is disclosed, it comprises plug-in unit, partly by advanced moulding compound, (English is " Advanced Molding Compound " to this plug-in unit, abbreviation AMC) layer, (English is " Bulk Molding Compound " to BMC, abbreviation BMC) layer or sheet molding compound (English is " Sheet Molding Compound ", abbreviation SMC) layer institute be Overmolded, above-mentioned thermosets is because its mechanical strength and the ability of without damage bearing electrophoresis step thereof are particularly suitable for this application.Plug-in unit comprises the region not being covered with plastic, and on these regions, can realize welding, this make can be in welding step Assembly floor and other metal parts.

The difficulty existing in the manufacture of the plastic floor of the welding plug-in unit with Overmolded is, must ensure good mechanical continuity between welding plug-in unit and the remainder on floor.

Utility model content

The purpose of this utility model is to overcome this difficulty.

For this reason, theme of the present utility model is the mould on a kind of maker motor-car polymeric material floor, this floor comprises at least one metal insert, this plug-in unit is partly Overmolded sheet material form, have and be designed to be aggregated the material part covering and the part that is designed to be uncovered, described mould comprises the die and the punch that limit die cavity, die cavity comprises the position that is designed to the part metals plug-in unit that is aggregated material covering for receiving, described mould is characterised in that, in this position of die cavity, mould be included on die and punch on projection (French godron), its thickness is greater than predetermined minimum thickness H.

Preferably, projection and mould are connected.The inwall of these projections and die or punch forms an entirety.

For given polymeric material, thickness H is confirmed as plug-in unit and must be aggregated material and covers the minimum thickness that makes floor firm, wherein said floor firmly refers to the purposes of considering that floor is set, makes floor meet mechanical stress technical requirement definite in the time that it designs.

In a preferred embodiment, thickness H is more than or equal to 1mm, preferably between 2 to 4mm.

By means of the utility model, projection stops the too close punch of sheet material and die, the i.e. outer surface on floor.Thus, there are enough plastics to ensure mechanical continuity good between plug-in unit and floor remainder in every side of sheet material.

Optimally, projection has same height at punch with on die, plug-in unit is maintained around the centre of the thickness of the plastic material of plug-in unit.

Another difficulty is, must avoid forming in prominence the thin layer of plastic material.In fact, staying the lip-deep plastic sheet of plug-in unit can come off in the time of electrophoresis, the pollution that this causes electrophoresis to be bathed.

In order to make up this extra defect, according to an embodiment of the present utility model, once the size of each projection is decided to be, closed this projection of mould is just contacted with plug-in unit by its free end, and projection is used for the shape of this free end of contacting with plug-in unit and is suitable for stoping plastic material at this end covering sheet material.The pressure that the quality of this contact is mainly applied on plug-in unit by the end of projection decides, this pressure itself directly depend on mould closing force and projection towards.

In a modification, projection is used for the shape of the free end that contacts with plug-in unit and is applicable to making, if produce the infiltration of material between described end and plug-in unit, this material can not come off in various situations in floor service life.

Therefore, plug-in unit is clipped between projection, and these projections can toward each other or stagger.If wish to avoid between its fulcrum bending in the situation that projection staggers, the thickness of plug-in unit and the rigidity of plug-in unit are especially depended in the selection of these two kinds of possibilities (projection relatively or stagger) especially.

Thus, in the part being uncovered at plug-in unit, can not form the thin layer of any plastic material.

In a special embodiment, for under 100bars pressure, use molded by for plug-in unit vehicle body, that realize according to the steel board of the DC04+ZE type of standard NF EN10152 (according to the quality index XES of old standard NF36-401), projection major part distributes according to repeated layout, the thickness of sheet material is included between 0.7mm to 2mm, be preferably incorporated between 0.5mm to 0.8mm, pattern (motif, be repeated layout) length be included between 20mm to 100mm, be preferably incorporated between 20mm to 55mm.Although together illustrate, these each numerical value can also be separated from one another to form different independent characteristics.

Aforementioned " major part " refers to the projection that exceedes half and arranges according to repeatability.

The technical role that repeatability is arranged is in the whole length of sheet material, sheet material to be maintained on its position.

The length that repeatability is arranged depends on the material of molded pressure, sheet material and the closing direction of thickness and mould.

In another special embodiment, in not vertical with the closing direction of the mould upwardly extending part in side in an edge of Overmolded metal insert, each layout comprises three projections, wherein two projections are mutually close, and the distance between these two mutual close projections is 10 to 15mm.

Advantageously, the shape of projection is suitable for facilitating the demoulding on floor.

For example, for an edge of the Overmolded metal insert side upwardly extending part parallel with the closing direction of mould, the contact end of projection has and is roughly trapezoidal shape, and its bottom is 1 to 2mm, and draft angle (French angle de d é pouille) is 1 to 3 degree.

On the contrary, for another edge of Overmolded metal insert side upwardly extending part vertical with the closing direction of mould, because the demoulding is to carry out in the direction vertical with contact surface, the contact end of projection can have rectangular shape.

Finally, theme of the present utility model is also a kind of motor vehicle polymeric material floor, and it comprises at least one metal insert, and this metal insert is the Overmolded sheet material form of part, this floor is characterised in that, its thickness at polymeric material comprises that at least one leads to the opening of described plug-in unit.

Described opening is corresponding to the position of the projection contacting with plug-in unit when Overmolded.

In one embodiment, the thickness of plastic floor is 2 to 5mm, it comprises the plug-in unit that at least one part is Overmolded, the form of this plug-in unit be for vehicle body, according to the steel board of the DC04+ZE type of standard NFEN10152 (according to the quality index XES of old standard NF36-401), its thickness is between 0.7mm to 2mm.

According to the utility model, term " polymerization " can refer to homopolymers, also can refer to copolymer (being mainly binary or ternary).Homopolymers is the branch of the monomer of linear polymer or equivalence.Without limitation, being exemplified as of copolymer: copolymer, sequenced copolymer, block copolymer and the graft copolymer of random distribution.

Can also use the mixture of polymer or copolymer, similarly, can also use the mixture with the polymeric material of inorganic, organic and/or natural filler, without limitation, these inorganic, organic and/or natural fillers are for example: carbon, salt and other inorganic derivatives, natural fiber or polymer fiber.Can also use sandwich construction, these sandwich constructions are made up of the layer of piling up and be mutually connected, and described layer comprises at least one above-mentioned polymer or copolymer.

The polymer of frequent use is a polyester, particularly the polyester in (BMC or AMC) in bulk or stratiform (SMC) polymer.

Brief description of the drawings

Read the following description only exemplarily, providing with reference to accompanying drawing, can understand better the utility model.In these accompanying drawings:

Fig. 1 is that one group of six width shows mould and meet the schematic diagram in the process of method of the present utility model in use;

Fig. 2 is the perspective view of the side plug-in unit on floor;

Fig. 3 is the perspective view of the anterior plug-in on floor;

Fig. 4 is the perspective view of the rear plug-in unit on the floor of Fig. 9;

Fig. 5 is that the part on floor of Fig. 7 is along the view of V direction;

Fig. 6 is that the part on floor of Fig. 7 is along the view of VI direction;

Fig. 7 is the perspective view by means of the floor of the molded acquisition of plug-in unit of Fig. 2 to Fig. 4;

Fig. 8 is the cutaway view of Fig. 7 along VIII-VIII;

Fig. 9 is the cutaway view of Fig. 7 along IX-IX;

Figure 10 is the zoomed-in view of the part X of schematic diagram f in Fig. 1;

Figure 11 is the perspective view of the rearward projection of mould;

Figure 12 is the cutaway view of Fig. 5 along XII-XII;

Figure 13 is the cutaway view of Fig. 6 along XIII-XIII.

Detailed description of the invention

With reference now to Fig. 1,, it comprises six width schematic diagram a, b, c, d, e, f, and these schematic diagrames have illustrated in six consecutive steps of method of manufacturing polymeric material parts, dimeric mould.

Mould is arranged on press (not shown), and this press has fixed disk 1 and movable disk 3.

Mould comprises die 5 and punch 7, and die 5 is arranged on the fixed disk 1 of press, and punch 7 is arranged in movable disk 3.Die is mother's's (recessed) of mould half, and punch is the half of public (protruding).

Mould is the type with discharge chambe, its from open position (step a, b Fig. 1, c) during the closing motion that starts, have such moment, this time engrave, the die cavity of mould is closed space 9, as visible in schematic diagram d.This time engrave, mould is in closed filling position.The volume in space 9 is greater than the volume of mould cavity certainly, and the volume of so-called mould cavity refers to the volume limiting in the time that mould reaches mold position, and corresponding to the volume of final parts.During all closed filling positions and until mold position (step e), punch 7 as piston along the surface sliding of a restriction discharge chambe.The sealing of mould correspondence material that flow, that be used for realizing final parts in mould is mainly guaranteed at discharge chambe place.

In the case of the mould of Fig. 1, limit the surface of discharge chambe and formed by periphery movable cushion block 11, (step is e) and extended position (steps d) for the retrieving position of this movable cushion block in can the movable part 3 in regaining press.Although this movable cushion block 11 is shown as monolithic, also can be made up of polylith, fulfil two functions.

On the one hand, movable cushion block forms by its inner surface 11b the surface that above-mentioned punch 7 slides thereon.In fact, between the inner surface 11b of movable cushion block 11 and punch 7, reserve (sightless) gap.This gap also has the function of passage, discharges during filling mould with polymeric material with the gas that allows to be trapped in die cavity.

On the other hand, by its lower surface 11a, cushion block 11 is formed for the device of fixing one or more plug-in units together with wedging region, and described wedging region has the surface 13 being arranged on die 5, it faces the surperficial 11a of movable cushion block 11, explanation after described plug-in unit.Movable cushion block 11 is one with the framework being arranged on the jack 12 being carried by punch 7, to make the movable cushion block 11 can be near wedging region before joining discharge chambe to by sliding at punch 7.In a unshowned modification, cushion block and framework are different parts, and cushion block is arranged on the lower surface of framework.

In the perspective view of Fig. 2, Fig. 3 and Fig. 4, viewable side metal insert 15, front metal insert 27 and rear metal insert 29 respectively, these metal inserts will be placed in mould in an open position.Each plug-in unit has the shape of elongation, and this shape is straight lines for side plug-in unit 15 and the rear plug-in unit 29 of Fig. 2 and Fig. 4, is non-directional for 27 of the anterior plug-ins of Fig. 3.

As visible in the schematic diagram b of Fig. 1, side plug-in unit 15 is positioned on die 5, and to make a part of 15a of described plug-in unit cover the surface 13 in wedging region, and another part 15b of described plug-in unit is placed in the die cavity of mould.The part 15b being placed in the die cavity of mould is that plug-in unit 15 is for being wrapped by the part of moulding." be wrapped by the part of moulding " and refer to each plug-in unit for being wrapped by the part of moulding.The part 15a of covering surfaces 13 is the part that is molded parts for exceeding.Refer to this part 15a of plug-in unit 15 with " part being uncovered ".As seen in Figure 2, border 15c between the part 15b for being wrapped by moulding and the part 15a that is uncovered, that be called as Overmolded boundary line is the line of a non-material object, and it schematically illustrates with dotted line in Fig. 2.As seen in Figure 3, at the part 27a being uncovered of anterior plug-in 27 be wrapped by between the part 27b of moulding and have identical Overmolded boundary line 27c.Similarly, as seen in Figure 4, at the part 29a being uncovered and be wrapped by between the part 29b of moulding, exist after on the Overmolded boundary line 29c of plug-in unit 29.

Overmolded boundary line 15c, 27c and 29c, from the first end A of each plug-in unit, do not leave plug-in unit and extend to the opposite ends B of described plug-in unit, and roughly extend along border 15d, 27d, the 29d of plug-in unit, and wherein the border of plug-in unit is not necessary for straight line.

Each plug-in unit has special profile, and it is exclusively used in the model on the floor that will obtain.Similarly, each plug-in unit has the cross section along special angular bend, and wherein said angle is can be between plug-in unit different each other, or different each other between the diverse location place of length in same plug-in unit.These characteristics of insert shape are not described in detail in this manual.

In the part 15b that is wrapped by moulding, each plug-in unit 15,27,29 comprises hook hole 21, and it is for being filled by plastic material s known as technical staff, to obtain the intensity that sheet material is good.In part 15a, side plug-in unit 15 comprises that the hole 19 that centers is for being center on directions X (seeing Fig. 9) at its length direction.

When plug-in unit 15 is placed in mould, its part 15a being uncovered between cushion block 11 and wedging surface 13 time, the part 15b that is wrapped by moulding of plug-in unit is arranged in the die cavity of mould, (schematic diagram of Fig. 1 e) is located, and this position is positioned on the periphery of die cavity to be in this example positioned at position 8.

Although Fig. 1 only shows plug-in unit 15, the explanation of associated is also suitable for plug-in unit 27 and 29.

In position 8, mould is on die 5 and on punch 7 or on cushion block, comprise lateral process 10 (also can referring to Figure 10), front protrusion (not shown) and rearward projection 30 (referring to Figure 11).Projection 10 is the shapes that are connected with mould, forms an entirety with the inwall of die 5 or punch 7.Projection 10 is arranged to for contacting with it in the both sides of plug-in unit 15, with during molded floor, plug-in unit 15 is maintained predetermined, on the position of die cavity wall.

The size of each point of other projection 10,30 is confirmed as: just contact with plug-in unit 15,27,29 respectively by its free end 32,33 (referring to Figure 11) respectively once mould is closed, and the free end 32,33 contacting with corresponding plug-in unit is applicable to stoping plastic material 11 to cover the sheet material at 32,33 places, described end.

In the perspective view of Figure 11, the details of visible rearward projection 30.The shape of rearward projection 30 is suitable for conveniently along direction Z, the demoulding being carried out in floor.In this example, the shape of the free end 33 of projection (for what contact with plug-in unit) is roughly trapezoidal, this trapezoidal widely increases along stripping direction Z, and its bottom e is 1 to 2mm, draft angle on the long L of 25mm is 1 to 3 degree, and Overmolded thickness H is 2mm.

As visible in Fig. 6, for under the pressure of 100bars, use the molded of the plug-in unit made by the steel board of XES (standard NF36-401) type, rearward projection 30 major parts arrange that according to repeatability 43 distribute, and the thickness of wherein said sheet material is 0.67mm.The length P of pattern is 50mm.

Each layout 43 comprises three projections 30, and wherein two projections are mutually close, and the distance E between these two close projections is 10mm.

The shape of lateral process 10 is suitable for conveniently along direction Z, the demoulding being carried out in floor.In this example, the shape of the contact end 32 of projection 10 is roughly rectangle, and the Overmolded length L of this rectangle is 25mm, and width is 1 to 2mm (being preferably 1mm).Its thickness H is 2mm.

As seen in fig. 5, for under the pressure of 100bars, use the molded of the plug-in unit made by the steel board of XES (standard NF36-401) type, rearward projection 10 major parts arrange that according to repeatability 41 distribute, and the thickness of wherein said sheet material is 0.67mm.The length P of pattern is 50mm.

Each layout 41 comprises two projections 10, and the distance E between these two projections 10 is 10mm to 15mm.

It is the thermoset plastic material of SMC (English is " sheet molding coumpound ") type for molded material.As is known, this material is placed on the form of thick embryo 17 in the mould of opening, on die 5, is roughly positioned at the centre (although this not necessarily) of die cavity.The schematic diagram c of Fig. 1 shows material is placed on to the step in mould in an open position.

With reference to Fig. 1, six consecutive steps that meet method of moulding of the present utility model are described now.

In first step, as shown in schematic diagram a, mould is in an open position: punch 7 is away from die 5, and movable cushion block 11 is regained in punch 7.

In second step, as shown in schematic diagram b, anterior plug-in 27, side plug-in unit 15 and rear plug-in unit 29 are placed on the wedging region of die, and its part 15b, 27b and 29b that is wrapped by moulding is placed in the position 8 of die cavity, and prop up in the projection 10,30 of die 5.

In third step, as shown in schematic diagram c, SMC sheet 17 is placed in the middle of die cavity, on die 5.Second and third step can complete simultaneously or realize with different orders.

(not shown) in the 4th step, movable part 3 is near standing part 1, but there is no therefore close die, the first half of mould contacts with the element (being die 5) of the latter half of mould without any element (being punch 7 and movable cushion block 11).Therefore, mould does not also reach its closed filling position.

In the 5th step, as shown in schematic diagram d, jack 12 activated to make movable cushion block 11 to decline towards the wedging region 13 of die.By doing like this, it is upper that the surperficial 11a of movable cushion block 11 is pressed in part 15a, 27a and 29a that anterior plug-in 27, side plug-in unit 15 and rear plug-in unit 29 be uncovered, securely these plug-in units locked on the position on surface 13 that heads on wedging region.

The movable cushion block 11 of arranging is like this fulfiled two functions: on the one hand, for by the mobile mould cavity of filling of material 17, movable cushion block maintains plug-in unit in position, and on the other hand, movable cushion block forms discharge chambe.Therefore the die cavity of the mould being limited by punch 7, movable cushion block 11 and die 5 is closed, but does not also limit the shape of the parts that will obtain.Mould is in closed filling position.

In the 6th step, as shown in schematic diagram e, the movable part 3 of press moves on its route towards the direction of standing part 1.By doing like this, punch 7 is by sliding and move in cushion block 11 to piston being the same.Cushion block 11 keeps being fixedly pressed on plug-in unit 15, and jack 12 is folding and do not reduce to maintain the pressure of plug-in unit.The inner surface 11b of movable cushion block 11 forms the sidewall of discharge chambe, and punch 7 slides on this sidewall.The effect of the pasty state state of the minimizing of the volume of die cavity and plastic material 17 is, plastic material 17 is filled the die cavity of mould completely by flowing, and has particularly covered part 15b, 27b, 29b on the position that is placed in mould cavity 8 of plug-in unit 15,27,29.When punch 7 stop mobile, the projection 10,30 of punch reach with plug-in unit be wrapped by moulding part 15b, 27b, 29b contact, and mould is in mold position.Plastic material is filled the die cavity of mould completely, but projection 10,30 stops plastic materials to reach the prominence on part 15b, 27b, the 29b that plug-in unit is wrapped by moulding.Because cushion block 11 departs from by jack 12 and punch, projection 10,30 is pressed in and on part 15b, 27b that plug-in unit is wrapped by moulding, 29b, does not affect cushion block 11 and be pressed on part 15a, 27a that plug-in unit 15,27,29 is uncovered, 29a.In other words, do not produce indeterminate.

Volume between punch 7, movable cushion block 11 and die 5 is the volume of final parts.

In the 7th step, as shown in schematic diagram f, movable part 3 sides of opening at mould of press move up.At this moment movable cushion block 11 keeps being connected with punch 7, and rises together with punch, thus mould is re-arranged to the position of opening completely.The knockout 19 being arranged in die 5 lifts molded floor 20.Then molded floor is removed, and knockout 19 is retracted, and this permission restarts the molded cycle from the step as shown in schematic diagram.

Molded direction is vertical, on direction Z, the part 15b that is wrapped by moulding, the 27b that is noted that side plug-in unit 15 and anterior plug-in 27 is and molded direction off plumb, then the part 29b that is wrapped by moulding of plug-in unit 29 is level, vertical with molded direction.This can be more clearly visible illustrating respectively in Fig. 8 of cutaway view of side plug-in unit 15 and rear plug-in unit 29 and Fig. 9.

In another unshowned embodiment, plug-in unit tilts with respect to molded direction.

The thickness of the sheet material of plug-in unit is 0.7 to 2mm, and the thickness H of plastic material is 2 to 5mm.

Visible in Fig. 5 and Fig. 7, the shown by dashed lines part 15b that is wrapped by moulding, it is covered by plastic material 17.The projection 10 of mould forms groove 51 in plastic material.In other words, floor 20 comprises opening (groove 51), and it runs through the thickness of plastic material 17 and leads to plug-in unit.

Be understandable that the shape of groove and the shape complementarity of projection.

Thus, as seen in fig. 5, being wrapped by the having in the each region 53 with the groove 51 of projection 10 complementations of part 15b of moulding, plug-in unit 15 is not covered by plastic material 11.Extend on the whole planar section that is wrapped by moulding part 15b of plug-in unit in each region 53, but leading to its fillet place that is uncovered part 15a at plug-in unit stops.In other words, be wrapped by moulding part 15b planar section and until between Overmolded boundary line 15c, although projection is positioned at this place, the fillet of plug-in unit is still covered by plastic material 52.

In order to ensure that plastic material does not come off from the remainder on floor in the process in service life of floor, the free end 32 that projection 10 can be set comprises recess (d é crochement), make at least between region 53 and plastic material 52, this recess separates fillet and the free end 32 of plug-in unit, to make 52 layers of plastic materials enough thick, and therefore intensity is enough large.

The diameter in hook hole 21 can change between 4 to 10mm.Preferably, the diameter of the hook hole 21a between two mutual close projection 10a and 10b is 5mm.The diameter in other hook holes is 6mm.Distance between the projection that mutually close two projection 10a or 10b are adjacent with its another side is 19mm.

In Fig. 6, can see below the part 29b that is wrapped by moulding of plug-in unit 29 and not be wrapped by the part 29a of moulding.Except being wrapped by moulding part 29b each region 63 having with the groove 61 of projection 30 complementations, the part 29b that is wrapped by moulding is covered by plastic material 17.Groove 61 is formed by the rearward projection 30 of mould, and described rearward projection arranges that according to repeatability 43 distribute.

The diameter in hook hole 21 can change between 4 to 10mm.Preferably, the diameter of the hook hole 21a between two projections of same pattern 43 is 5mm.The diameter in other hook holes is 6mm.

The cutaway view of the groove 51 on side plug-in unit 15 has been shown in Figure 12.The edge 55 of groove 51 roughly extends along the direction that is wrapped by moulding part 15b perpendicular to plug-in unit.Be understandable that, this is wrapped by moulding part 15b and extends to be approximately perpendicular to plug-in unit corresponding to the wall of the projection 10 at this edge.In this embodiment, two projections 10 are face-to-face on die 5 and punch 7, form two grooves 51 with each side in the same region 53 at plug-in unit.

The cutaway view of the groove 61 on rear plug-in unit 29 has been shown in Figure 13.The part 29b that the edge 65 of groove 61 is wrapped by moulding with respect to plug-in unit 29 tilts, and its angle of inclination is 30 ° to 87 °, to facilitate along the demoulding of Z direction.Be understandable that, also tilt with respect to Z direction corresponding to the wall of the projection 30 at this edge.In this embodiment, two projections 30 are also face-to-face on die 5 and punch 7, form two grooves 61 with each side in the same region 63 at plug-in unit.

In another unshowned embodiment, projection 10 or 30 is arranged on die and punch and staggers.

The utility model is not restricted to shown embodiment and apparent other embodiment of those skilled in the art.Especially, only otherwise change mechanism of the present utility model, the shape of projection can be different.

Claims (12)

1. the mould on a maker motor-car polymeric material floor, described floor comprises at least one metal insert (15, 27, 29), described plug-in unit is partly Overmolded sheet material form, have and be designed to be aggregated the part (15b that material covers, 27b, 29b) with the part (15a that is designed to be uncovered, 27a, 29a), described mould comprises the die (5) and the punch (7) that limit die cavity, described die cavity comprises for being designed to be aggregated the described metal insert (15 of part that material covers, 27, 29) position (8), described mould is characterised in that, in the described position (8) of described die cavity, described mould is included in the projection (10 of described die (5) above and on described punch (7), 30), the thickness of described projection is greater than predetermined minimum thickness (H).

2. mould as claimed in claim 1, wherein, described thickness (H) is more than or equal to 1mm, preferably between 2 to 4mm.

3. the mould as described in any one in claim 1 and 2, wherein, described projection (10,30) has same height at described punch (7) with on described die (5), described plug-in unit (15,27,29) is maintained around the centre of the thickness of the plastic material of described plug-in unit.

4. mould as claimed in claim 3, wherein, each described projection (10,30) once size be decided to be and make described mould closure, described projection just contacts with described plug-in unit (15,27,29) by its free end (32,33), and described projection be used for the shape of the described free end (32,33) that contacts with described plug-in unit be suitable for stoping described plastic material in described end (32,33) locate to cover described sheet material.

5. mould as claimed in claim 4, wherein, described projection is used for the shape of the described free end (32,33) that contacts with described plug-in unit and is applicable to making, if produce material infiltration between described end and described plug-in unit, described material can not come off in the various situations in service life of described floor.

6. mould as claimed in claim 1, wherein, for under 100bars pressure, use molded by for plug-in unit vehicle body, that realize according to the steel board of the DC04+ZE type of standard NF EN10152 (according to the quality index XES of old standard NF36-401), described projection (10,30) is most of to distribute according to repeated layout, the thickness of described sheet material is included between 0.7mm to 2mm, be preferably incorporated between 0.5mm to 0.8mm, the length of pattern is included between 20mm to 100mm, is preferably incorporated between 20mm to 55mm.

7. mould as claimed in claim 1, wherein, in not vertical with the closing direction of the described mould upwardly extending part in side in an edge of Overmolded described metal insert, each pattern comprises three projections (30), wherein two projections are mutually close, and the distance between two described mutual close projections is 10 to 15mm.

8. mould as claimed in claim 1, wherein, the shape of described projection (10,30) is suitable for facilitating the demoulding on described floor.

9. mould as claimed in claim 1, wherein, for an edge of the Overmolded described metal insert side upwardly extending part parallel with the closing direction of described mould, the contact end (32) of described projection has and is roughly trapezoidal shape, its bottom is 1 to 2mm, and draft angle is 1 to 3 degree.

10. mould as claimed in claim 1, wherein, for another not parallel with the closing direction of described mould upwardly extending part in side of Overmolded described metal insert, the contact end (33) of described projection (30) has rectangular shape.

11. 1 kinds of motor vehicle polymeric material floors (20), described floor comprises at least one metal insert (15,27,29), described metal insert is the Overmolded sheet material form of part, described floor is characterised in that, described floor comprises that at the thickness of described polymeric material at least one leads to the opening of described plug-in unit (51,61).

12. motor vehicle polymeric material as claimed in claim 11 floors, described ground plate thickness is 2 to 5mm, and comprise the Overmolded plug-in unit of at least one part (15,27,29), the form of described plug-in unit be for vehicle body, according to the steel board of the DC04+ZE type of standard NF EN10152 (according to the quality index XES of old standard NF36-401), the thickness of described plug-in unit is between 0.7mm to 2mm.