CN212241861U - Mould structure that facade product IMR rendition was moulded plastics - Google Patents

Abstract

The utility model relates to the technical field of mold, in particular to mould structure that facade product IMR rendition was moulded plastics, facade product divide into at least first region and second region along the direction of height, and mould structure includes cover half and movable mould, and the cover half includes cover half first station and cover half second station, the first region looks adaptation of cover half first station and product, the second region looks adaptation of cover half second station and product, the first station of cover half are equipped with IMR film delivery machine the utility model provides a can realize that facade product internal surface carries out the mould structure that IMR rendition was moulded plastics, avoid appearing the product facade and crush the phenomenon that the diaphragm caused unable rendition.

Description

Mould structure that facade product IMR rendition was moulded plastics

Technical Field

The utility model relates to the technical field of mold, in particular to mould structure that facade product IMR rendition was moulded plastics.

Background

The appearance requirement of working of plastics in modern car light trade is growing, and multiple colour, multiple decorative pattern, diversified sense of touch even, the demand has been hardly satisfied to polychrome material injection moulding. Therefore, the in-mold transfer printing (IMR) in-mold decoration technology has application requirements, but the in-mold transfer printing can be generally carried out only on the outer surface of a product or the inner surface of the product with a small radian; the inner surface of the facade product has great limitation and technical difficulty in-mold transfer printing;

the prior art has the following defects:

(1) the in-mold transfer printing on the inner surface of the facade product requires that the product is smaller than a certain height (such as 8mm) and the stretch resistance of the transfer printing film substrate is high.

(2) Most of the in-mold transfer printing of the facade product can be carried out only on the outer surface of the product, and the transfer printing of the outer surface requires that the transfer printing coating has high scratch resistance and scratch resistance.

(3) When the vertical surface product is subjected to in-mold transfer printing, the vertical surface is diversified in color or difficult to transfer printing patterns, and the angle of the vertical surface is greatly limited.

SUMMERY OF THE UTILITY MODEL

Because the broken diaphragm of product facade pressure causes the problem of unable rendition during the IMR mould internal transfer printing that exists in order to solve prior art, the utility model provides a avoid mould internal transfer printing diaphragm to press broken facade product IMR rendition mould structure of moulding plastics.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a mould structure that facade product IMR rendition was moulded plastics, the facade product is divided into at least first region and second region along the direction of height, and the mould structure includes cover half and movable mould, and the cover half of mould includes the first station of cover half and cover half second station at least, the first station of cover half and the first regional looks adaptation of product, the second station of cover half and the regional looks adaptation of second of product, the first station of cover half is equipped with IMR film feeding machine.

Furthermore, the movable die is movably arranged, so that the movable die can be switched and matched with the fixed die first station/the fixed die second station.

Furthermore, the movable die is arranged in a rotating mode, and the rotating center line of the movable die is along the die opening and closing direction.

Furthermore, the movable die is provided with two die cavities corresponding to the first station of the fixed die and the second station of the fixed die in position respectively.

Furthermore, the depth h of the cavity of the movable die is less than r, r is a height value limited by the in-die transfer printing, the height value r limited by the in-die transfer printing can be set according to the shape, material characteristics and the like of a product, and the height of a first area required by the in-die transfer printing is smaller than a certain height (such as 8mm), so that the tensile resistance of the transfer printing film substrate is not required to be very high, and the difficulty and material requirements are reduced.

Further, an ejection mechanism of the die is arranged at a second station position of the fixed die.

Has the advantages that:

(1) the utility model aims at providing a mould structure which can realize IMR transfer printing injection molding on the inner surface of a vertical surface product, and avoid the phenomenon that the vertical surface of the product breaks a diaphragm to cause the incapability of transfer printing;

(2) the utility model realizes the transfer printing and injection molding in the mould by the mould feeding of the IMR film feeding machine;

(3) the movable die of the die structure of the utility model can realize 180-degree rotation, and the two die cavities of the movable die are matched with the die cavities of the two stations of the fixed die, so that the two stations can simultaneously perform injection molding, thereby improving the production efficiency;

(4) the utility model discloses a facade product is because the facade has certain length, consequently moulds plastics and accomplishes the die sinking after, and the product can remain on the cover half, sets up ejection mechanism on the cover half, and like this, the production quality of product is guaranteed to ejecting product that can be smooth.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a perspective view of a product structure;

FIG. 2 is a view showing a first region structure;

FIG. 3 is a view showing a second region structure;

FIG. 4 is a schematic cross-sectional view of a first region of an injection molding completion;

FIG. 5 is a top view of the first region after injection molding is complete;

FIG. 6 is a die cover half layout view;

FIG. 7 is a view showing the arrangement of a movable mold of the mold;

FIG. 8 is a cross-sectional view taken along A-A of FIG. 7;

FIG. 9 is a cross-sectional view taken along line B-B of FIG. 7;

FIG. 10 is a view of the ejection structure of the stationary mold;

fig. 11 is a cross-sectional view taken along line C-C of fig. 10.

The die positioning device comprises a die positioning frame, a die positioning mechanism, a fixed die, an ejection mechanism, a die positioning mechanism and a die positioning mechanism, wherein the die positioning frame comprises a vertical surface product 1, a first area 11, a first area 111, an inner surface 12, a second area 2, a fixed die 21, a fixed die first station 22, a fixed die second station 23, the ejection mechanism 3, a movable die 4 and a die positioning frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

The utility model provides a method that facade product IMR rendition was moulded plastics, as fig. 1 ~ 3, as the utility model discloses a first embodiment, facade product 1 is whole to be bowl shape or cup-shaped, but bowl end or cup bottom can go up to seal, also can not seal, and facade product 1 divides into at least first region 11 and second region 12 along the direction of height, and first region 11 and second region 12 can be moulded plastics by the raw and other materials of different colour differences and accomplish. The second area 12 is arranged at the end of the facade product 1 near the opening and the first area 11 is arranged at the end of the product far from the opening.

The method comprises the following steps:

step 1: the first area 11 is subjected to in-mold transfer printing injection molding; the structure of the first region 11 after injection molding is shown in FIGS. 4-5,

step 2: the second region 12 is injection molded on the basis of the injection-molded first region 11.

In step 1, the pattern in-mold transferred is provided on the surface of the first region 11. The utility model discloses in, the pattern setting of transfer printing in the mould is at the internal surface 111 of first region 11, sets up the eccentric position at the product. Thus, it is sufficient that the transfer structure of the IMR film feeder is provided on the half side of the first area 11.

In step 2, the first region 11 of the product is not demolded after injection molding is completed, and then the second region 12 is directly subjected to injection molding.

Referring to fig. 6 to 11, a mold structure of a vertical surface product IMR transfer molding method includes a fixed mold 2 and a movable mold 3, the fixed mold 2 of the mold at least includes a fixed mold first station 21 and a fixed mold second station 22, the fixed mold first station 21 is adapted to a first area 11 of a product, the fixed mold second station 22 is adapted to a second area 12 of the product, and the fixed mold first station 21 is provided with an IMR film feeding machine. The fixed die first station 21 is provided with the diaphragm locating frame 4, and whole diaphragm need be arranged directly over the fixed die first station 21, and the product is followed the movable mould 3 and is rotated after first region 11 accomplishes moulding plastics, and the fixed die is followed to the product after second region 12 accomplishes moulding plastics, and fixed die 2 has ejecting function, 2 inside arrangement product ejection structures of fixed die.

The depth h < r of the die cavity of the moving die 3, r is the height value limited by the in-die transfer printing, the height value r limited by the in-die transfer printing can be set according to the shape, material characteristics and the like of a product, and can be obtained through experiments on the basis that the membrane is not broken by pulling.

The movable mold 3 is movably arranged, so that the movable mold 3 can be matched with the fixed mold first station 21/the fixed mold second station 22 in a switching way. Movable mould 3 can remove, also can rotate, the utility model discloses in, movable mould 3 rotates the setting, and movable mould 3's rotation center line is along the die opening and shutting direction.

The movable mold 3 has two mold cavities corresponding to the fixed mold first station 21 and the fixed mold second station 22. The utility model discloses in, first region 11 is all wrapped up in the die cavity of movable mould 3 when the first station 21 of cover half is moulded plastics, then movable mould 3 drives first region 11 and shifts to cover half second station 22 and carry out the moulding plastics of second region 12, and cover half second station 22 has the die cavity that matches with second region 12, and the completion back of moulding plastics, whole facade product 1 stays on cover half 2, and ejection mechanism 23 of mould sets up the position at cover half 2's second station 22.

IMR (in-mold transfer printing) is to print a pattern on a film, then a film is attached to a mold cavity through a film feeding machine for extrusion, an ink making layer with the pattern is separated from the film after extrusion, the ink layer is left on the plastic part to obtain the plastic part with the decorative pattern on the surface, no transparent protective film layer is arranged on the surface of a final product, and the film is only a carrier in the hundred-production process. The IMR product is not easy to deform, the product edge is completely coated, the edge adhesive force is strong, the IMR transfer foil can be easily changed in production, the reject ratio can be controlled within a plurality of points due to simple procedures, the personnel requirement can be minimized due to simple procedures, the pattern alignment is perfect, the hardness can reach 2H, the automation degree during production is high, and the cost of mass production is low. IMR is widely applied to products, and belongs to a surface treatment process of plastic parts. Such as notebook computer shells, household electrical appliance shells, mobile phone shells, ABS and the like.

The utility model discloses a cut apart into plane (first region 11) and facade (second region 22) two parts with facade product 1, accomplish in the plane behind the mould internal transfer printing and at the facade of moulding plastics, the facade can be moulded plastics by the raw and other materials of different colour differences and is accomplished.

The specific working process of the die structure is as follows: (1) the mould comprises a double-color injection molding machine and a double-color two-station mould, and the IMR structure is arranged on the half side of the first station 21 on the fixed mould 2 side of the double-color mould; (2) the IMR film conveying machine conveys the transfer printing patterns to a first area 11 of an injection molding product, a membrane positioning plate is pressed to be vacuumized and attached to a membrane, and then the mould is closed to perform first color product injection molding; (3) after injection molding and transfer printing are finished, the product rotates 180 degrees along with the movable mold 3 to perform injection molding at a second station 22; (4) when the injection molding of the second area 12 of the product is finished, the product is transferred from the following movable mold 3 to the following fixed mold; (5) and the vertical surface product 1 is ejected out of the fixed die and demoulded.

The utility model discloses a facade product internal surface carries out a preferred technical scheme of IMR rendition for the double-colored injection molding machine is the product split into plane (being first region 11) and facade (and second region) two parts, and the plane product of moulding plastics earlier carries out the IMR rendition simultaneously, carries out the function that the facade product internal surface carries out the IMR rendition of moulding plastics of cover half product after rotatory station. The mold structure is a double-color two-station mold, and the product structure is divided into a plane part and a vertical surface part for injection molding production; performing IMR transfer printing injection molding on the inner surface of the product; after the plane transfer printing of the product is finished, the full-automatic production of the mold is realized through the rotation of the first station and the second station of the injection molding machine; the IMR process is carried out on the fixed die side, and full-automatic operation can be realized through the film feeding equipment.

It should be understood that the above description of the specific embodiments is only for the purpose of explanation and not for the purpose of limitation. Obvious changes or variations caused by the spirit of the present invention are within the scope of the present invention.

Claims (6)

1. The utility model provides a mould structure that facade product IMR rendition was moulded plastics which characterized in that: facade product (1) is divided into at least first region (11) and second region (12) along the direction of height, and the mould structure includes cover half (2) and movable mould, and cover half (2) of mould include cover half first station (21) and cover half second station (22) at least, and cover half first station (21) and first region (11) looks adaptation of product, cover half second station (22) and second region (12) looks adaptation of product, and cover half first station (21) are equipped with IMR film feeding machine.

2. The IMR transfer injection mold structure of the facade product according to claim 1, wherein: the movable die (3) is movably arranged, so that the movable die (3) can be switched and matched with the fixed die first station (21)/the fixed die second station (22).

3. The IMR transfer injection mold structure of the facade product according to claim 2, wherein: the movable mould (3) is arranged in a rotating mode, and the rotating center line of the movable mould (3) is along the mould opening and closing direction.

4. The IMR transfer injection mold structure of the facade product according to claim 3, wherein: the moving die (3) is provided with two die cavities corresponding to the positions of the fixed die first station (21) and the fixed die second station (22).

5. The IMR transfer injection mold structure of the facade product according to claim 4, wherein: the cavity depth h < r of the moving mold (3) is a defined height value for the in-mold transfer.

6. The IMR transfer injection mold structure of the facade product according to claim 3, wherein: the ejection mechanism (23) of the die is arranged at the position of the second station (22) of the fixed die (2).

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