CN210617136U

CN210617136U - Precision injection mold simulating glass dazzling effect

Info

Publication number: CN210617136U
Application number: CN201920309016.9U
Authority: CN
Inventors: 傅册; 杜文涛; 廖建平
Original assignee: Ly Itech Dongguan Co
Current assignee: Ly Itech Dongguan Co
Priority date: 2019-03-12
Filing date: 2019-03-12
Publication date: 2020-05-26
Anticipated expiration: 2029-03-12

Abstract

The utility model discloses an accurate injection mold of imitative glass dazzling light effect, including movable mould and cover half, the movable mould includes the B board and the springboard adjacent with the B board, and fixed movable mould benevolence mold insert is gone up to the springboard, and along opening the mould direction, the B board can remove for the springboard, is equipped with the first hole relative with the B board on the springboard, is equipped with the belleville spring component of exerting thrust to the B board in the first hole, is fixed with the B board stop component that prevents the B board and drop on the springboard. The utility model discloses an accurate injection mold not only has the function of moulding plastics of traditional mould, still has the compression function, and the product surface that makes to mould plastics and obtain is smooth, has imitative glass and dazzles the light effect.

Description

Precision injection mold simulating glass dazzling effect

Technical Field

The utility model relates to a technical field of moulding plastics, in particular to accurate injection mold of light effect is dazzled to imitative glass.

Background

In the mobile phone industry, the appearance profile of a product formed by high-pressure forming of a composite board is unstable, the yield is low, the glass process is complex, the cost is high, and the material is fragile. In practice, plastics that are easily injection moulded are more used instead of brittle glass. However, injection molding is required to obtain optical effects similar to those of glass.

Injection compression molding is a high-grade form of conventional injection molding, which combines two means of injection molding and compression, and thus can injection compression mold products suitable for various thermoplastic engineering plastics, such as large-sized curved parts, thin-walled parts, and optical lenses.

SUMMERY OF THE UTILITY MODEL

According to the utility model discloses an aspect provides an accurate injection mold of imitative glass dazzling effect, including movable mould and cover half, the movable mould includes the B board and the diving board adjacent with the B board, and fixed movable mould benevolence mold insert on the diving board along the die opening direction, and the B board can remove for the diving board, is equipped with the first hole relative with the B board on the diving board, is equipped with the belleville spring component of exerting thrust to the B board in the first hole, is fixed with the B board stop member that prevents the B board and drop on the diving board.

The beneficial effects of the embodiment are as follows: when in use, the movable mould core insert is arranged on the elastic plate; under the state of not closing the die, the disc spring component pushes the plate B to enable the plate B to be in contact with the plate B limiting component, the plate B limiting component prevents the plate B from falling off, and a gap exists between the plate B and the elastic plate; the injection molding machine drives the movable mold and the fixed mold to be assembled, when the B plate is contacted with the fixed mold, the movable mold continues to move towards the fixed mold, the disc spring component is compressed at the moment, the gap between the B plate and the elastic plate is reduced, plastics are injected into a mold cavity, and the disc spring component bears injection molding pressure to prevent the movable mold and the fixed mold from being separated in the injection molding process; when the injection amount of the plastic reaches 90%, the injection molding machine drives the movable mold to continue to move towards the fixed mold, at the moment, the disc-shaped spring member is further compressed, and the movable mold core insert moves towards the fixed mold, so that the plastic in the mold cavity is compressed.

In some embodiments, the belleville spring member includes a first limiting meson, a washer, an ejector, a first bolt, and a plurality of superimposed belleville springs, the first limiting meson includes a first body and a first limiting portion, one end of the first body is provided with the first limiting portion, the other end connects the washer through the first bolt, the ejector and the belleville spring are sleeved on the outer wall of the first body, and the ejector and the belleville spring can move along the axial direction of the first body, the belleville spring pushes the ejector to enable the ejector to apply an acting force to the B plate. The disk spring has large elasticity and can bear the injection molding pressure during injection molding; the first limiting part can prevent the ejector from falling off.

In some embodiments, the first stopper portion includes a first upper end surface and a first lower end surface.

In some embodiments, the ejector piece comprises a second upper end surface and a second lower end surface, a through hole extending from the second upper end surface to the second lower end surface is formed in the ejector piece, a second limiting portion is arranged on the inner edge of the lower end of the through hole, and the second limiting portion comprises a first limiting surface opposite to the second lower end surface. The through hole can accommodate the first limiting part, and the first lower end face of the first limiting part is in contact with the first limiting face in a non-die-closing state, so that the ejection piece is prevented from being separated.

In some embodiments, the B-plate limiting member includes a second limiting medium and a second bolt, the second limiting medium is fixed on the elastic plate by the second bolt, and the second limiting medium includes a second main body and a third limiting portion disposed at an end of the second main body. The third limiting part prevents the B from disengaging, and the distance from the third limiting part to the elastic plate defines the movable distance of the B plate relative to the elastic plate.

In some embodiments, the third limiting portion includes a third upper end surface and a third lower end surface opposite to the third upper end surface.

In some embodiments, the B plate is provided with a through-hole, the through-hole has a second limiting surface therein, the second limiting medium is disposed in the through-hole, the through-hole is in clearance fit with the second limiting medium, and a gap exists between the third lower end surface and the second limiting surface in a state where the B plate is in contact with the spring plate. And under the state that the B plate is contacted with the elastic plate, the width of the gap between the third lower end surface and the second limiting surface is the movable distance of the B plate relative to the elastic plate.

In some embodiments, the gap between the third lower end surface and the second stopper surface is 0.85mm in a state where the B plate is in contact with the spring plate.

Drawings

Fig. 1 is a sectional view of a precision injection mold according to an embodiment of the present invention.

Fig. 2 is a cross-sectional view of a belleville spring member along a central axis in accordance with an embodiment of the present invention.

Fig. 3 is a sectional view of an assembly of the first positioning medium, the washer and the first bolt according to an embodiment of the present invention.

Fig. 4 is a schematic cross-sectional view of an ejector according to an embodiment of the present invention.

Fig. 5 is a cross-sectional view of a B-plate stop member along a central axis according to an embodiment of the present invention.

Fig. 6 is an assembly diagram of a B-plate limiting member according to an embodiment of the present invention.

Detailed Description

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

The utility model discloses a specific embodiment provides accurate injection mold, compares in traditional injection mold, and this mould still has the compression function outside having the basic function of moulding plastics, and consequently the product surface that this mould was moulded plastics and is obtained is smooth, has imitative glass and dazzles the light effect.

Fig. 1 schematically shows the utility model discloses an embodiment's accurate injection mold of imitative glass dazzling effect, including movable mould 1 and cover half 2, movable mould 1 includes B board 3 and the diving board 4 adjacent with B board 3, and fixed movable mould benevolence mold insert 31 is gone up to diving board 4, along opening the mould direction, and B board 3 can remove for diving board 4, is equipped with the first hole 5 relative with B board 3 on the diving board 4, is equipped with the belleville spring component 6 that exerts thrust to B board 3 in the first hole 5, is fixed with the B board stop member 7 that prevents that B board 3 from droing on the diving board 4.

Fig. 2 schematically shows a cross-sectional view of a disc spring member 6 along a central axis as provided by an embodiment of the invention. Fig. 3 schematically shows a cross-sectional view of an assembly of the first spacing medium 8, the washer 9 and the first bolt 11 according to an embodiment of the present invention. The disc spring component 6 comprises a first limiting meson 8, a washer 9, an ejector 10, a first bolt 11 and a plurality of stacked disc springs 12. The first spacing meson 8 includes a first main body 13 and a first spacing portion 14 disposed at an end of the first main body 13. Preferably, the first body 13 and the first stopper 14 have a cylindrical shape. The outer diameter of the first stopper portion 14 is larger than the outer diameter of the first body 13. Thus, the first stopper portion 14 forms a first upper end surface 15 and a first lower end surface 16. A washer 9 is provided at an end of the first body 13 opposite to the first stopper 14, the washer 9 is fixed by a first bolt 11, and the washer 9 is in a sheet shape. Specifically, the first bolt 11 passes through the first limiting member 8 from the end where the first limiting portion 14 is located along the central axis of the first limiting member 8 and is then in threaded connection with the washer 9.

Fig. 4 schematically shows a cross-sectional view of the ejector 10 along a central axis, according to an embodiment of the invention. The ejector 10 includes a second upper end surface 17 and a second lower end surface 18 opposite to the second upper end surface 17, and the ejector 10 is provided with a through hole 19 extending from the second upper end surface 17 to the second lower end surface 18. The through hole 19 can accommodate the first position-limiting portion 14, a second position-limiting portion 20 is disposed on the inner edge of the lower end of the through hole 19, and a surface of the second position-limiting portion 20 opposite to the second lower end surface 18 is a first position-limiting surface 21.

As shown in fig. 2, the disc spring 12 and the ejector 10 are coaxially sleeved on the outer wall of the first limiting medium 8, and the disc spring 12 and the ejector 10 are in clearance fit, so that the disc spring 12 and the ejector 10 can move along the axial direction of the first limiting medium 8. The first position-limiting portion 14 is located in the through hole 19. The lower end of the disc spring 12 is supported by the washer 9, and the upper end of the disc spring 12 applies a pushing force to the second lower end surface 18 of the ejector 10, so that the ejector 10 applies a force to the B plate 3. The first stopper portion 14 prevents the ejector 10 from coming off. In the state that the injection mold is not closed, under the pushing of the disc spring 12, the first limiting surface 21 contacts with the first lower end surface 16, and the second upper end surface 17 is higher than the first upper end surface 15.

Fig. 5 schematically shows a cross-sectional view of a B-plate stop member 7 along a central axis, provided by an embodiment of the present invention. Fig. 6 schematically shows an assembly diagram of a B-plate limiting member 7 according to an embodiment of the present invention. The B-plate stopper member 7 includes a second stopper meson 22 and a second bolt 23. The second spacing meson 22 is fixed on the elastic plate 4 through a second bolt 23. The second positioning medium 22 includes a second main body 24 and a third positioning portion 25 disposed at an end of the second main body 24. Preferably, the second body 24 and the third stopper 25 are cylindrical. The third stopper portion 25 has an outer diameter larger than that of the second body 24, and thus, the third stopper portion 25 forms a third upper end surface 26 and a third lower end surface 27 opposite to the third upper end surface 26. The B plate 3 is provided with a through counter bore 28, and the counter bore 28 is provided with a second limiting surface 29 therein. The second spacing meson 22 is disposed in the countersunk hole 28, the second bolt 23 passes through the second spacing meson 22 along a central axis of the second spacing meson 22, and the second bolt 23 is connected with the springboard 4, so that the second spacing meson 22 is fixed on the springboard 4. The counter bore 28 is in clearance fit with the second limiting medium 22, the B plate 3 is movable along the mold opening direction, the movement of the B plate 3 is limited by the distance from the third lower end surface 27 to the spring plate 4, and the third limiting part 25 can prevent the B plate from being separated. When the B plate 3 contacts the spring plate 4, the gap between the third lower end surface 27 and the second limiting surface 29 is 0.85 mm.

In use, in an unclamped state, the belleville spring member 6 pushes the B plate 3 so that the second stopper surface 29 contacts the third lower end surface 27, and a gap exists between the B plate and the spring plate 4. When the injection molding machine controls the mold to be closed, firstly the plate A30 of the fixed mold 2 contacts with the plate B3, the movable mold core insert 31 fixed with the elastic plate 4 is matched with the fixed mold core 32 of the fixed mold 2 to form a product cavity, the mold closing is continued, the disc spring 12 is compressed, the movable mold core insert 31 continues to move towards the fixed mold 2, and meanwhile the second limiting surface 29 is separated from the third lower end surface 27. The injection mold is controlled by the injection molding machine to keep a gap of 0.2mm between the second limiting surface 29 and the third lower end surface 27, at this time, plastic is injected into the cavity of the mold, and the belleville spring member 6 bears the injection pressure. When the cavity is filled with 90% of plastic, the mold is closed continuously, the disc spring 12 is compressed continuously, the movable mold core insert 31 moves further towards the fixed mold 2, the plastic in the cavity is compressed, and at the moment, the gap between the third lower end surface 27 and the second limiting surface 29 is further expanded. When the gap between the third lower end surface 27 and the second limiting surface 29 is enlarged to 0.85, the B plate 3 contacts with the spring plate 4, the belleville spring 12 cannot be compressed, the moving mold core insert 31 cannot move continuously toward the fixed mold 2, and the product in the mold cavity is in a final shape.

The invention of the utility model lies in the belleville spring component 6, the B board stop member 7 and the mounting structure, and other structures of the mould such as bottom plate, panel, thimble board, thimble, guide pillar etc. can adopt prior art, and no longer give consideration to here.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims

1. The utility model provides a precision injection mold of imitative glass dazzling light effect, a serial communication port, including movable mould (1) and cover half (2), movable mould (1) include B board (3) and springboard (4) adjacent with B board (3), fixed movable mould benevolence mold insert (31) are gone up in springboard (4), along opening the mould direction, B board (3) can remove for springboard (4), be equipped with on springboard (4) first hole (5) relative with B board (3), be equipped with dish spring member (6) that exert thrust to B board (3) in first hole (5), be fixed with on springboard (4) and prevent B board stop member (7) that B board (3) drop.

2. The precision injection mold for imitating glass glare effect of claim 1, the disc spring component (6) comprises a first limiting meson (8), a gasket (9), an ejector (10), a first bolt (11) and a plurality of stacked disc springs (12), the first limit meson (8) comprises a first main body (13) and a first limit part (14), one end of the first main body (13) is provided with the first limiting part (14), the other end of the first main body is connected with the gasket (9) through the first bolt (11), the ejector (10) and the disc spring (12) are sleeved on the outer wall of the first main body (13), and the ejector (10) and the disc spring (12) are movable in the axial direction of the first body (13), the disc spring (12) pushes the ejector (10) to enable the ejector (10) to exert acting force on the B plate (3).

3. The precision injection mold for imitating glass glare effect according to claim 2, characterized in that the first limiting part (14) comprises a first upper end surface (15) and a first lower end surface (16).

4. The precision injection mold with the glass glare effect simulation effect according to claim 2, wherein the ejector (10) comprises a second upper end surface (17) and a second lower end surface (18), a through hole (19) extending from the second upper end surface (17) to the second lower end surface (18) is formed in the ejector (10), a second limiting portion (20) is arranged on the inner edge of the lower end of the through hole (19), and the second limiting portion (20) comprises a first limiting surface (21) opposite to the second lower end surface (18).

5. The precision injection mold with the glass glare effect simulation effect according to claim 1, wherein the B plate limiting member (7) comprises a second limiting meson (22) and a second bolt (23), the second limiting meson (22) is fixed on the elastic plate (4) through the second bolt (23), and the second limiting meson (22) comprises a second main body (24) and a third limiting part (25) arranged at the end part of the second main body (24).

6. The precision injection mold for glass-imitated glare effect according to claim 5, characterized in that the third limiting part (25) comprises a third upper end surface (26) and a third lower end surface (27) opposite to the third upper end surface (26).

7. The precision injection mold with the glass glare effect simulation effect according to claim 6, wherein a through counter bore (28) is formed in the B plate (3), a second limiting surface (29) is arranged in the counter bore (28), the second limiting medium (22) is arranged in the counter bore (28), the counter bore (28) and the second limiting medium (22) are in clearance fit, and a clearance exists between the third lower end surface (27) and the second limiting surface (29) in a state that the B plate (3) is in contact with the elastic plate (4).

8. The precision injection mold for the glass-imitated glare effect according to claim 7, wherein in a state where the B plate (3) is in contact with the spring plate (4), a gap between the third lower end surface (27) and the second limiting surface (29) is 0.85 mm.