CN201296014Y

CN201296014Y - A forming device of in-mold decorations

Info

Publication number: CN201296014Y
Application number: CNU2008203017150U
Authority: CN
Inventors: 张浚元
Original assignee: Kang Zhun Electronical Technology Kunshan Co ltd; Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Kang Quasi Electronic Technology (kunshan) Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2008-08-04
Filing date: 2008-08-04
Publication date: 2009-08-26
Anticipated expiration: 2018-08-04

Abstract

The utility model relates to a forming device of in-mold decorations, comprising a male mold, a female mold, a thin film and press blocks; wherein, the female mold is provided with a cavity; the press blocks can be arranged between the female mold and the male mold in a sliding way; the thin film is coated at an inner wall of the cavity and one end surface where the press blocks are close to the cavity. When the molds are integrated, the press blocks slide towards the cavity and push the thin film to cause the thin film to cover an opening of the cavity so as to coat an end part of a forming part. By arranging press blocks to coat the thin film used for decorations in the molds to the end part of the cavity and stretch into a lower bottom surface of the cavity, the forming device therefore avoids the loss of a transfer printing layer because of the bending of the thin film to a mold parting surface and ensure the completeness and rate of finished products of the forming parts.

Description

The shaped device of in-mold decoration

Technical field

The utility model relates to a kind of shaped device, particularly a kind of shaped device of in-mold decoration.

Background technology

When utilizing Shooting Technique to form plastic products, usually need on plastic products, draw ornamental literal or pattern.Commonly used drafting literal or method of patterning are the method for secondary operations, after the plastic products injection moulding being finished, print, operation such as spraying the final plastic products with literal or pattern that form again on the plastic products of moulding that is:.

The operation of the method for secondary operations is comparatively loaded down with trivial details, and its production cycle is also longer.The technology of in-mold decoration can shorten the production cycle, enhances productivity.Figure 1 and Figure 2 is the schematic diagram of the employed shaped device of a kind of decoration technique inside mold in the prior art.This shaped device comprises that a cover has the mould 20 and film 30 of die cavity 10, and mould 20 comprises male model 22 and master mold 24.Film 30 is laid between male model 22 and the master mold 24, and fits on the inwall of die cavity 10, and the two ends of film 30 are pressed together on the die joint of male model 22 and master mold 24 joints.

The matrix of film 30 is provided with the transfer printing layer 32 of ornamental literal of tool or pattern.During moulding, plastics are injected in the die cavity 10 between male model 22 and the master mold 24, after the cooling die sinking, transfer printing layer 32 separates with the matrix of film 30 and attached on the profiled member 40, thereby can form the plastic products that have literal or pattern through single injection-molded.

Because film 30 is to bend at die cavity 10 inwalls and die joint place, is easy to generate transfer printing layer 32 and can not be properly fit onto situation on profiled member 40 edge surfaces and the end.At this moment, formed literal or pattern promptly can produce disappearance on profiled member 40, and influence the integrality and the yield rate of product.

The utility model content

In view of this, be necessary to provide a kind of shaped device of in-mold decoration, it can form complete literal or pattern in the edge surface and the end of profiled member.

A kind of shaped device of in-mold decoration comprises male model, master mold, film and pressing block.Described master mold is provided with die cavity, described pressing block is installed between described master mold and the described male model slidably, described film is laid on the inwall and the close end face of described die cavity of described pressing block of described die cavity, during matched moulds, described pressing block slides and promotes described film towards described die cavity direction, makes it be covered in the opening part of described die cavity and is laid in the end of profiled member.

The shaped device of above-mentioned in-mold decoration will be used for in-mold decoration by pressing block is set film is coated to the end of die cavity, and extend to the bottom surface of die cavity, thereby avoid the situation of film, guaranteed the integrality and the yield rate of profiled member owing to the transfer printing layer disappearance that occurs to the die joint bending.

Description of drawings

Fig. 1 is the partial sectional view of a kind of shaped device of in-mold decoration in the prior art.

Fig. 2 is the partial sectional view of shaped device when moulding of in-mold decoration shown in Figure 1.

Fig. 3 is the partial sectional view of better embodiment of the shaped device of the utility model in-mold decoration.

Fig. 4 is the partial sectional view of shaped device when moulding of in-mold decoration shown in Figure 3.

Fig. 5 is the partial sectional view of another better embodiment when moulding of the shaped device of the utility model in-mold decoration.

Fig. 6 is the partial sectional view of another better embodiment of the shaped device of the utility model in-mold decoration.

Fig. 7 is the partial sectional view of shaped device when moulding of in-mold decoration shown in Figure 6.

The specific embodiment

As shown in Figure 3, the better embodiment of the shaped device of the utility model in-mold decoration comprises mould 50, film 60 and pressing block 70.

Mould 50 comprises male model 52 and master mold 54.Master mold 54 is offered a die cavity 56.The die cavity 56 prominent auxiliary sections 58 of establishing of male model 52 corresponding master molds 54.

Film 60 is laid in the die cavity 56, and fits on the inwall of die cavity 56, and its one side towards male model 52 is provided with the ink lay 62 of mere formality word or pattern.

Pressing block 70 is located on the die joint of master mold 54 and between master mold 54 and male model 52.Film 60 also is laid in pressing block 70 near on the end face of die cavity 56.Pressing block 70 can slide along the direction that die joint extends with respect to male and

female mould

52,54, thereby the end of film 60 can be pushed to 58 places, auxiliary section of male model 52 and cover the part opening of die cavity 56.The power set (figure does not show) that drive pressing block 70 relative moulds 50 slips can be motor, airbrasive or hydraulic machinery etc.

As shown in Figure 4, during the matched moulds moulding, together with secured in alignment in the die cavity 56 that ink lay 62 immigration moulds 50 thereon are set, make film 60 be fitted on the master mold 54 of mould 50 film 60.After film 60 was fitted, power set drove pressing block 70 and move to end with respect to mould 50 and be resisted against on the auxiliary section 58 of male model 52, make the end of film 60 be pushed and cover pressing block 70 on the surface of die cavity 56.Injected plastic is to being full of whole die cavity 56, to form profiled member 80 in die cavity 56.Film 60 promptly is attached on profiled member 80 together with the ink lay 62 that is provided with thereon.When cooling off the back demoulding, take out with 52,54 separation of male and female mould and with profiled member 80, thereby profiled member 80 promptly separates with mould 50.Film 60 is stayed on the profiled member 80 together with ink lay 62, to form required literal or pattern.Because film 60 has covered the whole inwall of die cavity 56, thereby, just make the outer surface of profiled member 80 form literal or pattern, the phenomenon that ink lay 62 fails to adhere to can not appear, guaranteed the integrality of profiled member 80.Simultaneously, because film 60 has further covered the part opening of die cavity 56, can also satisfy the demand that on the end face of the described part opening of being positioned at of profiled member 80, forms literal or pattern.

As shown in Figure 5, the another kind of better embodiment of the shaped device of the utility model in-mold decoration and structure shown in Figure 3 are similar, and difference is: a depression 522 ends with ccontaining pressing block 70 are offered in 58 sides, auxiliary section of this male model 52.

Depression 522 is positioned at the auxiliary section 58 of male model 52 and the corresponding position of glide direction of pressing block 70, during the matched moulds moulding, pressing block 70 slides into the part opening of covering die cavity 56 with respect to mould 50 and matches with depression 522, thereby film 60 is compressed in the die cavity 56 of mould 50.This depression 522 can be any shape that can accommodate pressing block 70.By this depression 522 and the cooperating of pressing block 70, film 60 can cover the part opening of die cavity 56, can also satisfy the demand of on the end face of profiled member 80 formation literal or pattern in the integrality that guarantees profiled member 80.

As shown in Figure 6, another better embodiment of the shaped device of the utility model in-mold decoration and structure shown in Figure 3 are similar, but film 90 is laid between the male model 52 and master mold 54 of mould 50, and part is positioned at the die cavity 56 of mould 50.The part that film 90 is positioned at die cavity 56 is fitted on the inwall of die cavity 56, and its one side towards male model 52 is provided with the transfer printing layer 92 of mere formality word or pattern.

As shown in Figure 7, during the matched moulds moulding, together with secured in alignment in the die cavity 56 that transfer printing layer 92 immigration moulds 50 thereon are set, make film 90 be fitted on the master mold 54 of mould 50 film 90.After film 90 was fitted, power set drove pressing block 70 and move to end with respect to mould 50 and be resisted against on the auxiliary section 58 of male model 52, the part that makes film 90 be in die cavity 56 opening parts be pushed and cover pressing block 70 on the surface of die cavity 56.Injected plastic is to being full of whole die cavity 56, to form profiled member 94 in die cavity 56.Transfer printing layer 92 promptly is attached on profiled member 94.When cooling off the back demoulding, take out with 52,54 separation of male and female mould and with profiled member 94, thereby profiled member 94 promptly separates with mould 50.Transfer printing layer 92 breaks away from film 90 and stays on the profiled member 94, to form required literal or pattern.Because film 90 has covered the whole inwall of die cavity 56, thereby, just make the outer surface of profiled member 94 form literal or pattern, the phenomenon that transfer printing layer 92 fails to adhere to can not appear, guaranteed the integrality of profiled member 94.Simultaneously, because film 90 has further covered the part opening of die cavity 56, can also satisfy the demand that on the end face of the described part opening of being positioned at of profiled member 94, forms literal or pattern.

The shaped device of above-mentioned in-mold decoration is provided with the part opening that film that pressing block will be used for in-mold decoration coats the whole inside of die cavity and covers die cavity, thereby avoid the situation of film owing to the transfer printing layer disappearance that occurs to the die joint bending, guarantee the integrality and the yield rate of profiled member, can also satisfy the demand that on the end face of profiled member, forms literal or pattern.

Claims

The shaped device of [claim 1] a kind of in-mold decoration, comprise male model, master mold, film and pressing block, described master mold is provided with die cavity, described pressing block is installed between described master mold and the described male model slidably, described film is laid on the inwall and the close end face of described die cavity of described pressing block of described die cavity, during matched moulds, described pressing block slides and promotes described film towards described die cavity direction, makes it be covered in the opening part of described die cavity and is laid in the end of profiled member.
The shaped device of [claim 2] in-mold decoration as claimed in claim 1 is characterized in that: described pressing block is driven by drive unit, and described drive unit is motor, airbrasive or hydraulic machinery.
The shaped device of [claim 3] in-mold decoration as claimed in claim 1 is characterized in that: described male model is provided with the auxiliary section with respect to described die cavity, and described auxiliary section is used to accommodate the depression of the end of described pressing block when offering matched moulds.
The shaped device of [claim 4] in-mold decoration as claimed in claim 3 is characterized in that: described depression is positioned on the auxiliary section of described male model the position with respect to the glide direction of described pressing block.
The shaped device of [claim 5] in-mold decoration as claimed in claim 1 is characterized in that: described film is provided with ink lay, and described ink lay and described film are being attached on the described profiled member after the profiled member moulding.
The shaped device of [claim 6] in-mold decoration as claimed in claim 1 is characterized in that: described film is provided with transfer printing layer, described transfer printing layer be attached to after the profiled member moulding on the described profiled member and with described divided thin film from.
The shaped device of [claim 7] in-mold decoration as claimed in claim 1 is characterized in that: the part of described film also is pressed between the described male and female mould.