CN212400193U

CN212400193U - Novel HUD injection compression mold using butterfly spring

Info

Publication number: CN212400193U
Application number: CN202021067013.8U
Authority: CN
Inventors: 李家庆; 金文斌; 张裕; 黄孝坤; 钟德鹏; 高勤
Original assignee: Fujian Fulan Optics Co Ltd
Current assignee: Fujian Fulan Optics Co Ltd
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2021-01-26
Anticipated expiration: 2030-06-11

Abstract

The utility model relates to a novel HUD injection compression mold using butterfly springs, which comprises a fixed mold component, a movable mold component and a pouring system connected with a cavity of the movable mold component, wherein the fixed mold component is arranged on the movable mold component; the movable mould component comprises a movable mould base plate, wherein an ejector pin base plate is arranged on the movable mould base plate, an ejector pin panel is arranged on the ejector pin base plate, a base plate is arranged on the ejector pin panel, a butterfly spring is arranged in the base plate, a movable mould plate is arranged on the base plate, a movable mould insert is arranged in the movable mould plate, a movable mould core is fixed on the base plate, and the movable mould core sequentially penetrates through the movable mould plate and the movable mould insert from bottom to top; the fixed die assembly comprises a fixed die base plate, a fixed die plate is connected to the fixed die base plate, and a fixed die insert is installed at the lower part of the fixed die plate. The compression power is greatly enhanced, the product can be fully compressed, the risks of shrinkage and stress concentration of the product are reduced, and the effect is more obvious especially for the product with uneven wall thickness or very thick wall thickness.

Description

Novel HUD injection compression mold using butterfly spring

Technical Field

The utility model relates to an injection moulding technical field, especially a novel injection moulding compression mould of HUD of application butterfly spring.

Background

The compression power source of the injection compression mold is usually provided by the ejector rod of the injection molding machine, and the injection pressure needs to be kept in order to prevent plastic backflow in the product injection compression process, however, the ejector rod compression power of the injection molding machine is far less than the injection pressure, so that the original compression mold can not compress the product to a sufficient state due to insufficient compression power, and the product structure can not meet the requirement of high precision.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model aims at providing a novel injection compression mould of HUD of application butterfly spring keeps injection pressure to provide sufficient holding power in the compression process for moulding plastics, and the mode locking power through the injection molding machine compresses the product completely simultaneously.

The embodiment of the utility model provides an in adopt following scheme to realize: the novel HUD injection compression mold using the butterfly spring comprises a fixed mold component, a movable mold component and a pouring system connected with a cavity of the movable mold component, wherein the fixed mold component is installed on the movable mold component; the movable die assembly comprises a movable die base plate, an ejector pin base plate is arranged on the movable die base plate, an ejector pin panel is mounted on the ejector pin base plate, a base plate is arranged on the ejector pin panel, a butterfly spring is mounted in the base plate, a movable die plate is arranged on the base plate, the upper end face of the butterfly spring is in contact with the lower end face of the movable die plate, a movable die insert is arranged in the movable die plate, a movable die core is fixed on the base plate, and the movable die core sequentially penetrates through the movable die plate and the movable die insert from bottom to top; the fixed die assembly comprises a fixed die base plate, a fixed die plate is connected to the fixed die base plate, and a fixed die insert is mounted at the lower part of the fixed die plate; the lower surface of the fixed die insert is in contact with the upper surface of the movable die insert.

In an embodiment of the present invention, a supporting pillar is fixed on the right portion of the movable mold base plate, and the supporting pillar sequentially passes through the thimble panel and contacts with the lower surface of the base plate; a limiting block is arranged on the thimble panel; the thimble bottom plate is provided with a high-strength rubber; the elastic rubber is provided with a reset rod, and the reset rod sequentially penetrates through the ejector pin panel, the base plate, the movable template and the lower surface of the fixed template to be contacted; a rectangular spring is sleeved on the reset rod, the lower surface of the rectangular spring is in contact with the ejector pin panel, the upper part of the rectangular spring is in contact with the base plate, an ejector pin is fixed on the ejector pin base plate, and the ejector pin sequentially penetrates through the ejector pin panel, the base plate, the movable die plate and the movable die insert; and the middle part of the movable die holder is provided with an ejector rod through hole.

In an embodiment of the utility model, the movable template is provided with equal-height screw mounting holes, equal-height screws penetrate the equal-height screw mounting holes, and the lower parts of the equal-height screws are fixedly connected with the backing plate; the movable die insert is fixed on the movable die plate; the movable mould core is locked on the base plate, a guide sliding block is sleeved on the movable mould core, and the guide sliding block is arranged in the movable mould plate and is positioned below the movable mould insert.

The utility model relates to an embodiment, wear to be equipped with first guiding axle on the backing plate, first guiding axle upwards passes the movable mould board, and penetrates in the fixed die plate, supreme first uide bushing and the second uide bushing of wearing to be equipped with respectively are followed to the follow on the first guiding axle, first uide bushing is fixed in the movable mould board, the second uide bushing is fixed in the fixed die plate.

The utility model relates to an embodiment, worn the second guiding axle on the movable mould bedplate, the cover is equipped with the axle sleeve on the second guiding axle, the axle sleeve is installed thimble bottom plate with in the thimble panel, the head of second guiding axle penetrates in the backing plate.

The utility model has the advantages that: the utility model provides a novel injection compression mould of HUD of application butterfly spring has strengthened compression power greatly, makes the product can obtain abundant compression, reduces the product and contracts and stress concentration's risk, especially to the inhomogeneous or very thick product of wall thickness, and the effect is more obvious. The compression power source of the injection compression mold is changed from the ejector rod power of the injection molding machine into strong mold locking force, namely the compression power source is provided by the mold locking force of the injection molding machine. The butterfly springs are used for providing enough supporting force for keeping injection pressure in the injection compression process, so that when the mold is in a compression space, namely, a parting surface of the mold can still be closed and meet the requirement of the injection pressure under the condition that the mold is not completely locked, and finally, when the compression space is zero, namely, the mold is completely locked, the mold locking force is completely compressed. The mold locking force of the conventional injection molding machine is several times or even dozens of times of the power of the ejector rod, so that the product can be more fully compressed during injection and compression.

Drawings

Fig. 1 is a schematic structural view of a HUD novel injection compression mold using butterfly springs when the HUD novel injection compression mold is not compressed.

Fig. 2 is a schematic structural view of a HUD novel injection compression mold using butterfly springs after being completely compressed.

Fig. 3 is a schematic view of an overall structure of an application example of a HUD novel injection compression mold using butterfly springs.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

Referring to fig. 1 to 3, the utility model provides a HUD novel injection compression mold using butterfly springs, which comprises a fixed mold component, a movable mold component and a casting system 26 connected with a cavity of the movable mold component, wherein the fixed mold component is mounted on the movable mold component; the movable mould component comprises a movable mould base plate 1, an ejector pin base plate 2 is arranged on the movable mould base plate 1, an ejector pin panel 3 is arranged on the ejector pin base plate 2, a base plate 5 is arranged on the ejector pin panel 3, a butterfly spring 7 is arranged in the base plate 5, a movable mould insert is driven by extruding a movable mould plate, so that a parting surface is tightly closed, sufficient supporting force is provided for keeping injection pressure in the injection and compression processes, a movable mould plate 9 is arranged on the base plate 5, the upper end surface of the butterfly spring 7 is contacted with the lower end surface of the movable mould plate 9, a movable mould insert 10 is arranged in the movable mould plate 9, a movable mould core 11 is fixed on the base plate 5, and the movable mould core 11 sequentially penetrates through the movable mould plate 9 and the movable mould insert 10; the fixed die assembly comprises a fixed die base plate 14, the fixed die part of the die is fixed on the injection molding machine, a fixed die plate 13 is connected to the fixed die base plate 14, and a fixed die insert 12 is installed at the lower part of the fixed die plate 13; the lower surface of the fixed die insert 12 is in contact with the upper surface of the movable die insert 10, and is a parting surface of the die, and the fixed die insert, the movable die insert and the movable die core form a molding cavity.

Referring to fig. 1 to 3, in an embodiment of the present invention, a supporting pillar 4 is fixed on a right portion of the movable mold base plate 1 to support a cushion plate, so as to prevent the cushion plate from deforming due to an excessive pressure, and the supporting pillar 4 sequentially passes through the thimble panel 3 to contact with a lower surface of the cushion plate 5; a limiting block 18 is arranged on the ejector pin panel 3, and the ejector pin ejection stroke is limited by limiting the ejection distance of the ejector pin panel; the ejector pin base plate 2 is provided with a high-strength rubber 19, so that when the die is closed and is in an uncompressed state, the ejector pin base plate drives the ejector pin to completely return through the elasticity of the high-strength rubber; a reset rod 16 is arranged on the acrylic rubber 19, and the reset rod 16 sequentially penetrates through the thimble panel 3, the base plate 5, the movable template 9 and the lower surface of the fixed template 13 to be contacted; a rectangular spring 17 is sleeved on the reset rod 16, the lower surface of the rectangular spring 17 is in contact with the ejector pin panel 3, the upper part of the rectangular spring 17 is in contact with the base plate 5, after a product is ejected out, the ejector pin panel is extruded to drive the ejector pin to automatically return, an ejector pin 6 is fixed on the ejector pin base plate 2 to eject the product, and the product is demolded, wherein the ejector pin 6 sequentially penetrates through the ejector pin panel 3, the base plate 5, the movable die plate 9 and the movable die insert 10; and the middle part of the movable die holder is provided with an ejector rod through hole 20, and the ejector rod and the reset rod are fixed by being locked with the ejector pin panel, so that the ejection function and the reset function are realized.

Referring to fig. 1 to 2, in an embodiment of the present invention, equal-height screws 15 are disposed on the movable mold plate 9, the equal-height screws 15 penetrate the equal-height screws 15, so as to limit a distance that the movable mold plate is pressed by the butterfly spring to be expanded, i.e., a distance of a compression space, and lower portions of the equal-height screws 15 are fixedly connected to the backing plate 5; the movable die insert 10 is fixed on the movable die plate 9; the movable mould core 11 is locked on the base plate 5, a guide slider 8 is sleeved on the movable mould core 11, the guide slider 8 is installed in the movable mould plate 9 and located below the movable mould insert 10 and matched with the movable mould core to guide and position the movable mould core, and the fixed mould core is protected from friction burn with the movable mould insert in the compression process.

In an embodiment of the present invention, a first guide shaft 21 is disposed on the backing plate 5, the first guide shaft 21 upwardly penetrates through the movable mold plate 9 and penetrates into the fixed mold plate 13, a first guide sleeve 22 and a second guide sleeve 23 are respectively disposed on the first guide shaft 21 from bottom to top, the first guide sleeve 22 is fixed in the movable mold plate 9, and the second guide sleeve 22 is fixed in the fixed mold plate 13, so as to guide the movement of the movable mold plate and the fixed mold plate; the utility model discloses install four more first guiding axles on the mould altogether.

In an embodiment of the present invention, the movable mold base plate 1 is penetrated with a second guide shaft 24, the second guide shaft 24 is sleeved with a shaft sleeve 25, the shaft sleeve is installed in the thimble base plate 2 and the thimble panel 3, and the head of the second guide shaft penetrates into the base plate 5, so as to guide the movement of the thimble base plate and the thimble panel, and the movement is more accurate; the utility model discloses install four second guiding axles 24 on the mould altogether.

The utility model discloses the theory of operation below has:

the whole movable mold part and the whole fixed mold part are fixed on the injection molding machine by locking the movable mold base plate 1 and the fixed mold base plate 14. In a mold closing state and when the injection molding machine is not applied with mold locking force, the movable mold plate 9 is forcibly spread under the elastic force action of the butterfly spring 7, and after a certain distance is spread, the movable mold plate 9 is clamped by the contour screws 15, namely is limited and is not spread any more. At this time, the movable mold core 11 is locked and fixed on the backing plate 5, the position is not changed, and the guide block 8 and the movable mold insert 10 are locked and fixed on the expanded movable mold plate 9, the position is changed, so that the movable mold core 11 and the movable mold insert 10 generate relative displacement, the displacement space is a compression space, and the displacement change amount, namely the distance of the expanded movable mold plate 9 is a compression distance T, as shown in fig. 1.

During the compression of moulding plastics, the injection molding machine begins to exert the clamping force, the die joint closes tightly, at first the fixed die plate 13 drives the cover half insert 12 and extrudes to the movable mould insert 10 and impels, then the movable mould insert 10 drives the movable die plate 9 and extrudes to the extrusion of butterfly spring 7 and impels, the compression distance begins to reduce, butterfly spring 7 compression capacity begins to increase, bounce-back force is bigger and bigger, and then the locking force of counteraction on the die joint is also bigger and bigger, at the same time, it begins to inject quantitative product sol and keeps injection pressure to advance the mouth, for preventing sol from leaking, the locking force of its die joint must be greater than its injection pressure, consequently, provide the quantity of butterfly spring 7 of die joint locking force, elasticity size must satisfy the requirement. In the process of reducing the compression distance, that is, when the compression space gradually approaches zero, the product 27 is gradually compressed and molded by the movable mold core 11 until the mold is completely closed by the mold locking force of the injection molding machine, that is, when the compression distance is zero, the product 27 is completely compressed to a desired shape, and thus, the compression is completed, as shown in fig. 2.

After the product compression molding, the injection molding machine removes the mold locking force and opens the mold, the parting surface is separated, because of the pulling of the mold sticking force, the product 27 is left in the movable mold part, at the moment, the movable mold plate 9 is forcedly expanded to the compression distance by the butterfly spring 7 because of the disappearance of the mold locking force, the guide slide block 8, the movable mold insert 10 and the product 27 are driven to move forwards for a certain distance, the movable mold core 11 is locked on the base plate 5 and is fixed, and therefore the cavity of the movable mold core 11 is firstly separated from the product 27. And then the ejector rod of the injection molding machine penetrates through the ejector rod through hole 20 of the movable mold base plate 1 to be ejected on the ejector pin base plate 2, the ejector pin base plate 2 pushes the ejector pin panel 3 and the ejector pin 6 forwards, and the product 27 is ejected out of the cavity of the driven mold insert 10, so that the injection molding of the product is completed.

The above description is only for the preferred embodiment of the present invention, and should not be interpreted as limiting the scope of the present invention, which is intended to cover all the equivalent changes and modifications made in accordance with the claims of the present invention.

Claims

1. The utility model provides a novel injection compression mould of HUD of application butterfly spring, includes cover half subassembly, movable mould subassembly and connects the gating system in movable mould subassembly die cavity, its characterized in that: the fixed die assembly is mounted on the movable die assembly; the movable die assembly comprises a movable die base plate, an ejector pin base plate is arranged on the movable die base plate, an ejector pin panel is mounted on the ejector pin base plate, a base plate is arranged on the ejector pin panel, a butterfly spring is mounted in the base plate, a movable die plate is arranged on the base plate, the upper end face of the butterfly spring is in contact with the lower end face of the movable die plate, a movable die insert is arranged in the movable die plate, a movable die core is fixed on the base plate, and the movable die core sequentially penetrates through the movable die plate and the movable die insert from bottom to top; the fixed die assembly comprises a fixed die base plate, a fixed die plate is connected to the fixed die base plate, and a fixed die insert is mounted at the lower part of the fixed die plate; the lower surface of the fixed die insert is in contact with the upper surface of the movable die insert.

2. The novel HUD injection compression mold with butterfly springs as claimed in claim 1, wherein: a supporting column is fixed on the right part of the movable mold base plate, and the supporting column sequentially penetrates through the ejector pin panel to be in contact with the lower surface of the base plate; a limiting block is arranged on the thimble panel; the thimble bottom plate is provided with a high-strength rubber; the elastic rubber is provided with a reset rod, and the reset rod sequentially penetrates through the ejector pin panel, the base plate, the movable template and the lower surface of the fixed template to be contacted; a rectangular spring is sleeved on the reset rod, the lower surface of the rectangular spring is in contact with the ejector pin panel, the upper part of the rectangular spring is in contact with the base plate, an ejector pin is fixed on the ejector pin base plate, and the ejector pin sequentially penetrates through the ejector pin panel, the base plate, the movable die plate and the movable die insert; and the middle part of the movable die holder is provided with an ejector rod through hole.

3. The novel HUD injection compression mold with butterfly springs as claimed in claim 1, wherein: the movable template is provided with equal-height screw mounting holes, equal-height screws penetrate through the equal-height screw mounting holes, and the lower parts of the equal-height screws are fixedly connected with the base plate; the movable die insert is fixed on the movable die plate; the movable mould core is locked on the base plate, a guide sliding block is sleeved on the movable mould core, and the guide sliding block is arranged in the movable mould plate and is positioned below the movable mould insert.

4. The novel HUD injection compression mold with butterfly springs as claimed in claim 1, wherein: wear to be equipped with first guiding axle on the backing plate, first guiding axle upwards passes the movable mould board, and penetrates in the fixed die plate, supreme first uide bushing and the second uide bushing of wearing to be equipped with respectively is followed from down on the first guiding axle, first uide bushing is fixed in the movable mould board, the second uide bushing is fixed in the fixed die plate.

5. The novel HUD injection compression mold with butterfly springs as claimed in claim 1, wherein: the movable mould base plate is provided with a second guide shaft in a penetrating mode, a shaft sleeve is sleeved on the second guide shaft, the shaft sleeve is installed in the ejector pin base plate and the ejector pin panel, and the head of the second guide shaft penetrates into the base plate.