CN206614751U

CN206614751U - It is easy to the injection mold of the demoulding

Info

Publication number: CN206614751U
Application number: CN201720258875.0U
Authority: CN
Inventors: 廖冬华
Original assignee: Taizhou City Huangyan Fanke Mould Co Ltd
Current assignee: Taizhou City Huangyan Fanke Mould Co Ltd
Priority date: 2017-03-16
Filing date: 2017-03-16
Publication date: 2017-11-07
Anticipated expiration: 2027-03-16

Abstract

The utility model discloses a kind of injection mold for being easy to be stripped, its drip irrigation device is, first passing through the first insufflation channel will separate between product and core, then stripper plate is by product up jack-up one end distance, so that there is more space between product and core, second insufflation channel is up blown, and gases at high pressure are entered between product and core, and then product is blown off from mould.The so overall mould that gets off need not set long thimble, reduce the volume of mould, and die sinking process, distance is especially big without what is opened between dynamic model and cover half, it is only necessary to which bullet block opens, and cover half and dynamic model separate small segment distance.

Description

It is easy to the injection mold of the demoulding

Technical field

The utility model is related to mould, more particularly to a kind of injection mold for being easy to be stripped.

Background technology

With the development of society, consumption more and more higher of the plastic products in we live, because its is cheap, processing The good advantage of convenient, lightweight, performance, our commodity are substantial amounts of to use plastic products, and plastic products it is many by Shooting Technique processes what is formed, and Shooting Technique is the die cavity that the plastics under molten condition are injected into injection mold by injection machine Interior, plastics are cooled down in die cavity, and then are molded.

Existing teacup as shown in Figure 1, its cup is deeper, and there are multiple rough structures on surface.For this Teacup with deeper cup, is generally all to be ejected product out of mould using thimble, so when injection is finished Being accomplished by longer push rod can eject teacup completely, and longer push rod easily lifts the height of mould, causes entirety Increase in die cost, and larger opening stroke is also required to, the requirement of maximization is proposed to injection machine.

Utility model content

In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of injection mould for being easy to be stripped Tool.

Above-mentioned technical purpose of the present utility model technical scheme is that：A kind of note for being easy to be stripped It is provided with mould, including mould bases, the mould bases on cover half, the dynamic model that can be moved with respect to cover half, cover half and is fixedly installed type Be additionally provided with core, the dynamic model can the bullet block that opens of left and right, the bullet block will be provided with die cavity, type in core parcel and bullet block The space formed between core and die cavity is to be provided with the die cavity consistent with shape of product, the core for blowing product and type First insufflation channel of outer core separation, the end of first insufflation channel is provided with the first insufflation channel opening is sealed Block, be provided with first insufflation channel on the back-moving spring for being used for driving block to reset, the cover half be provided with can above and below The opening alignment of the second insufflation channel and the second insufflation channel is provided with above the stripper plate that activity pushes product, the cover half The gas being provided with core side wall, the stripper plate for the second insufflation channel is directly blown onto the breach of wall product outside core.

By above-mentioned technical proposal, when the demoulding, dynamic model separate from cover half, and then band block of moving divides with product From the product that injection is finished is rested on core, and the first insufflation channel can be blowed air between core and product, Jin Erke Take the viscous force between product and core.In the state of not air inlet, block is by the driving force of back-moving spring, and block is by opening Position seals, keep whose surfaces integrality.And during air inlet, the pressure of gas can push up open block and then allow product Between core can gassy, and then efficiently separated.Due to there is the pressure in the limitation of block, the first insufflation channel What can not be risen is very high, therefore stripper plate rising can push product one segment distance, and product is reaching a certain height it Afterwards, the second insufflation channel blowout gases at high pressure, thrust is applied to above product by gas by breach, and then by product from core Blow open above, complete the demoulding.

This stripping means, first passing through the first insufflation channel will separate between product and core, and then stripper plate is past by product Upper jack-up one end distance so that there is more space between product and core, the second insufflation channel is up blown, gases at high pressure Enter between product and core, and then product is blown off from mould.The so overall mould that gets off need not set long Thimble, reduces the volume of mould, and during die sinking, distance is especially big without what is opened between dynamic model and cover half, only Bullet block is needed to open, cover half and dynamic model separate small segment distance.

The utility model is further arranged to：Hollow out inside the core, and core on cover half with being provided with and extraneous water The water-filled pipe of source connection.

By above-mentioned technical proposal, water-filled pipe can substantial amounts of entrance cooling water inside, such cooling water can be to type Core is cooled, and then is attached to the product on core and can be quickly cooled and shaped, and avoids product when the demoulding not have as far as possible There is cooling abundant, and cause product to glue and stay in above core, cause product quality unqualified.

The utility model is further arranged to：Water-filled pipe in the core is distributed in the shape of a spiral.

By above-mentioned technical proposal, the water-filled pipe structure of spiral distribution can increase what cooling water flowed in core Distance, and then further improve cooling abundant degree of the cooling water to core.

The utility model is further arranged to：It is provided through on the cover half on the Angle Pin of bullet block, the Angle Pin It is provided with the driving spring of driving bullet block springing outward.

By above-mentioned technical proposal, the structure of Angle Pin can limit the event trace of bullet block, allow bullet block can only be along oblique Guide pillar is slided, and driving spring is the stable power for providing motion that flicks of bullet block, it is ensured that when dynamic model is separated with cover half Bullet block, which can be stablized, to be opened.

The utility model is further arranged to：It is provided with grab, the bullet block and is provided with and grab card on the cover half The fixture block connect, the grab is plane with the contact surface of fixture block and the fixture block can be separated by sliding with grab.

By above-mentioned technical proposal, at the beginning of die sinking, contact surface planar slide of the fixture block first with grab on bullet block, directly Bullet block is just flicked along Angle Pin is oblique after being separated to fixture block with grab, and such bullet block is when departing from, and plane is moved first Dynamic a small distance, is then flicked again.Product will not be caused when separation with product for die cavity for the structure so first translated Destroy, otherwise separation angle tiltedly up easily pulls product, after die cavity and product are kept completely separate, bullet block can be free Open.

The utility model is further arranged to：The cover half bottom is provided with ejector retainner plate movable up and down, the thimble The push rod for connection is provided between plate and stripper plate.

By above-mentioned technical proposal, ejector retainner plate is located at cover half bottom, is easy to the power input in the external world, and push rod bar can allow top The motion of needle plate keeps consistent with each other with stripper plate action, so only needs to ejector retainner plate to external world and is driven, you can in driving The stripper plate in portion synchronously carries out lifting activity.

The utility model is further arranged to：The cast gate for being connected with injection machine is provided with the top of the dynamic model, it is described Cast gate is connected with die cavity.

By above-mentioned technical proposal, the structure of cast gate can directly be inserted for the stable entrance of material, the injecting head of injection machine Entering to pouring intraoral can complete injection molding, simple and fast.

The utility model is further arranged to：Two pairs of cover half and dynamic model, the structure of two pairs of cover half are provided with the mould bases Unanimously, the die cavity of bullet block is respectively the first die cavity and the second die cavity for being used to be formed product internal layer on two pairs of dynamic models, in production The second die cavity of outer layer is formed outside product internal layer, the second die cavity volume is more than the first die cavity and the second die cavity can be complete by the first die cavity All standing.

By above-mentioned technical proposal, two pairs of cover half and dynamic model are provided with mould bases, and then it is double-colored that product can be carried out Processing, the core of the first die cavity and cover half first mutually fastens, is molded by die cavity after the internal layer of product, then cover half Core joint product and the second die cavity coordinate, and carry out quadric injection mould, finally process outer layer, form double-colored product.

The utility model is further arranged to：The mould bases includes cope plate and lower template, and cope plate is fixed with dynamic model to be connected Connect, cover half is fixed in lower template.

By above-mentioned technical proposal, cover half is respectively fixed on lower template with dynamic model and turned with cope plate, so only needing to Dynamic cope plate or lower template can complete the switching of product, switch more to facilitate rapidly.

The utility model is further arranged to：It is provided between cope plate and lower template for fixed spacing between the two Connecting rod, the connecting rod two ends are connected by screw with cope plate, lower template respectively, are provided for hanging hanging for mould in connecting rod Ring.

The utility model is further arranged to：Connecting rod can keep fixing by screw, so also just allow cover half with moving Spacing between mould keeps securing.So product is internal during transport keeps close, is less prone to and rocks, mould is not Easily knocked bad.And suspension ring are arranged on to the other structures for also not destroying mould in connecting rod, it is easy to driving directly by mold hoisting Rise.

Brief description of the drawings

Fig. 1 be background technology in cup structure chart

Fig. 2 is the structure chart of embodiment；

Fig. 3 is the structure chart after removing cope plate in embodiment；

Fig. 4 is the sectional view at A-A in Fig. 3；

Fig. 5 is the sectional view at B-B in Fig. 3；

Fig. 6 is the enlarged drawing at I in Fig. 5；

Fig. 7 is the enlarged drawing at J in Fig. 5；

Fig. 8 is the sectional view at C-C in Fig. 3；

Fig. 9 is the enlarged drawing at K in Fig. 8.

Reference：1st, mould bases；11st, cope plate；12nd, lower template；13rd, suspension ring；14th, connecting rod；21st, cover half；22nd, move Mould；23rd, Angle Pin；24th, driving spring；25th, cast gate；31st, core；32nd, bullet block；34th, die cavity；35th, the first die cavity；36th, second Die cavity；41st, fixture block；42nd, grab；43rd, ejector retainner plate；44th, push rod；51st, the first insufflation channel；52nd, block；53rd, back-moving spring； 54th, stripper plate；55th, breach；56th, the second insufflation channel；6th, water-filled pipe.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

As shown in Fig. 2 a kind of injection mold for being easy to the demoulding, including mould bases 1, mould bases 1 includes cope plate 11 and lower template 12, the lower section of cope plate 11, which is fixedly installed in dynamic model 22, lower template 12, is fixedly installed cover half 21, the number of cover half 21 and dynamic model 22 Amount is respectively two pairs, and one pair of which cover half 21, dynamic model 22 are used for the interior color of injecting products, and another pair cover half 21, dynamic model 22 are used In the exogenic color of injecting products.

Be provided between cope plate 11 and lower template 12 for it is fixed between the two away from connecting rod 14, the two ends of connecting rod 14 point It is not connected by screw with cope plate 11, lower template 12.When connecting rod 14 and cope plate 11 are fixed with lower template 12, just Good cover half 21 and the matched moulds of dynamic model 22, connecting rod 14 merge mould, it is to avoid mould is rocked in carrying.Meanwhile, connecting rod The suspension ring 13 for hanging mould are provided with 14, the suspension hook of driving can be stuck in above suspension ring 13, and then mould is sling.

As shown in Figure 3 and Figure 4, it is provided with each dynamic model 22 on two bullet blocks 32, and each dynamic model 22 and is provided with many Angle Pin 23, Angle Pin 23 is tilted toward the left and right sides, and each Angle Pin 23 penetrates bullet block 32, and bullet block 32 is slided along Angle Pin 23 It is dynamic.The driving spring 24 of the springing outward of driving bullet block 32 is arranged with Angle Pin 23, the one end of driving spring 24 is contradicted with dynamic model 22, The other end is contradicted with dynamic model 22.In the state of not by external force, opening movement is done outside the driving bullet of driving spring 24 block 32.

As shown in Figure 5, Figure 8, two inwalls of bullet block 32, which are provided with die cavity, cover half 21, is provided with prominent core 31, when Bullet block 32 closes up and cover half 21 is fitted with dynamic model 22, and core 31 is located in die cavity, forms sealedly empty between core 31 and die cavity Between, the space is to be provided with two die cavitys 34 on the die cavity 34 consistent with shape of product, every a pair of bullets block 32.Dynamic model 22 is gone back above The cast gate 25 connected with die cavity 34 is provided with, when injection molding, the plastics of molten condition enter die cavity from cast gate 25 Inside 34.

As shown in Fig. 5, Fig. 6, Fig. 7, two pairs of dynamic models 22 differ only in the upper impression shape of bullet block 32, and one of them is One die cavity 35, another is the second die cavity 36, and the shape of the first die cavity 35 is consistent with the endothecium structure of product.And the second die cavity 36 Volume is more than the first die cavity 35, and the first die cavity 35 can be with completely overlapped inside the second die cavity 36, and the second die cavity 36 can also A part of space is vacated, additional space is consistent with the outer layer shape of product, and then can realize quadric injection mould.

The structure of two pairs of cover half 21 is consistent, is provided with cover half 21 on cover half 21 and is provided with grab 42, is set on bullet block 32 There is a fixture block 41 with the clamping of grab 42, when grab 42 is mutually fastened with fixture block 41, its contact surface each other is plane. Fixture block 41 can do one end distance translation outward along grab 42, the distance of the translation can allow bullet block 32 just with core 31 Product separation above.

As shown in Figure 8, Figure 9, be provided with the first insufflation channel 51 in the core 31 of cover half 21, the first insufflation channel 51 with it is outer The air pump connection on boundary.The opening of first insufflation channel 51 is positioned at the top of core 31, and the aperture position of the first insufflation channel 51 is set Put the back-moving spring 53 being connected with block 52, and block 52 for block 52 to be resetted.When block 52 does not receive external force effect Wait, being provided with back-moving spring 53 is used to drive block 52 to seal the opening of the first insufflation channel 51, and now, the top of block 52 Portion is flushed with the top of core 31.

A stripper plate 54 is embedded with as shown in figure 5, being additionally provided with cover half 21, stripper plate 54 can be with up and down.When When cover half 21 and 21 matched moulds of cover half, when stripper plate 54 is embedded into cover half 21 and bullet block 32 is contradicted on stripper plate 54 Side.When dynamic model 22 is separated with cover half 21, stripper plate 54 can push product by rising, and then allow product stripping.

The lower section of cover half 21 is provided with an ejector retainner plate 43, and ejector retainner plate 43 is vertically installed with many push rods 44, push rod 44 above Ejector retainner plate 43 and stripper plate 54 are connected, the external world can promote ejector retainner plate 43 and then drive stripper plate 54 to move up and down.

The second insufflation channel 56 is additionally provided with cover half 21, an opening of the second insufflation channel 56 is located under stripper plate 54 Side, and stripper plate 54 is provided with a breach 55 above, the gas blown out for the second insufflation channel 56 comes out from the position of breach 55. The opening of second insufflation channel 56, can be by blowing product at the edge of core 31.

As shown in Fig. 6, Fig. 8, core 31 is internally provided with hollow out position, and core 31 on cover half 21 with being provided with and extraneous water Water-filled pipe 6 in the water-filled pipe 6 of source connection, core 31 is distributed in the shape of a spiral, and extraneous cooling water can flow through water service pipe Road 6, in the flowing of the inside spin of core 31, then flows out from cover half 21.

When injection molding, cover half 21 and the matched moulds of dynamic model 22, the injecting head of injection machine are inserted into cast gate 25, are melted The plastics of state are injected into the first die cavity 35 of side dynamic model 22, form the internal layer of product, complete to be molded for the first time.When interior When portion's product cooling is completed, cover half 21 is separated with dynamic model 22.When dynamic model 22 is separated with cover half 21, due to fixture block 41 By the clamping of grab 42, and then bullet block 32 is first with contact surface Slideslip one end distance outward of grab 42 and fixture block 41, So product is separated with die cavity, and then grab 42 is separated with fixture block 41, and the band of dynamic model 22 block 32 of moving is removed.

Afterwards, injection machine drives lower template 12 to rotate so that the position of two cover half 21 mutually exchanges, before injection formed Product is aligned with the second die cavity 36, now, cover half 21 and the matched moulds of dynamic model 22, and when matched moulds, bullet block 32 is contacted with cover half 21, bullet Block 32 is squeezed along Angle Pin 23 and slowly bounced back, and the second die cavity 36 is formed, and product is also inserted into the second die cavity with core 31 In 36, final matched moulds is completed.Now, the cast gate 25 of the second die cavity 36 injects different materials simultaneously from the cast gate 25 of the first die cavity 35 Material is molded respectively in two secondary moulds, and complete product is formed in such second die cavity 36, completes second of injection of product, and It is to carry out first time injection in first die cavity 35.

The corresponding cover half 21 of second die cavity 36 is after quadric injection mould is completed, and cover half 21 is separated with dynamic model 22, meanwhile, first The air inlet first of insufflation channel 51, gas pushes block 52 and risen, and then allows gassy between core 31 and die cavity, product and type Core 31 is separated, and product is no longer bonded on core 31.Stripper plate 54 rises afterwards, during rising, and stripper plate 54 drives Product rises, and rises to after certain distance, the second insufflation channel 56 is blown so that product from core 31 with separating. Complete the demoulding of product.After product stripping completion, lower template 12 continues to overturn, and the production come is molded by the first core 31 Product are continued into the second die cavity 36, can carry out the quadric injection mould of next product, and so move in circles carry out injection molding.

Described above is only exemplary embodiment of the present utility model, not for limitation protection model of the present utility model Enclose, protection domain of the present utility model is determined by appended claim.

Claims

1. a kind of injection mold for being easy to be stripped, it is characterized in that：Including mould bases (1), cover half is provided with the mould bases (1) (21) it is fixedly installed on, the dynamic model (22) that can be moved with respect to cover half (21), cover half (21) on core (31), the dynamic model (22) Be additionally provided with can the bullet block (32) that opens of left and right, the bullet block (32) will be provided with type in core (31) parcel and bullet block (32) Chamber, the space that core (31) is formed between die cavity is to be set on the die cavity (34) consistent with shape of product, the core (31) Have for blowing the first insufflation channel (51) that product is separated with core (31) outer wall, the end of first insufflation channel (51) It is provided with the sealed block (52) of the first insufflation channel (51) opening, interior be provided with of first insufflation channel (51) is used to drive Being provided with the back-moving spring (53) that block (52) resets, the cover half (21) can the up and down stripper plate for pushing product (54), the cover half (21) is provided with the opening alignment core of the second insufflation channel (56) and the second insufflation channel (56) above (31) gas being provided with side wall, the stripper plate (54) for the second insufflation channel (56) is directly blown onto the production of core (31) outer wall The breach (55) of product.

2. the injection mold according to claim 1 for being easy to be stripped, it is characterized in that：The internal hollow out of the core (31), and Core (31) is with being provided with the water-filled pipe being connected with external source (6) on cover half (21).

3. the injection mold according to claim 2 for being easy to be stripped, it is characterized in that：Water-filled pipe in the core (31) (6) it is distributed in the shape of a spiral.

4. the injection mold according to claim 1 for being easy to be stripped, it is characterized in that：It is provided through on the cover half (21) The driving spring of driving bullet block (32) springing outward is provided with the Angle Pin (23) of bullet block (32), the Angle Pin (23) (24)。

5. the injection mold according to claim 1 for being easy to be stripped, it is characterized in that：Grab is provided with the cover half (21) (42) fixture block (41) with grab (42) clamping, is provided with the bullet block (32), the grab (42) connects with fixture block (41) Contacting surface is plane and the fixture block (41) can be separated by sliding with grab (42).

6. the injection mold according to claim 1 for being easy to be stripped, it is characterized in that：Cover half (21) bottom is provided with can Up and down ejector retainner plate (43), is provided with the push rod (44) for being connected between the ejector retainner plate (43) and stripper plate (54).

7. the injection mold according to claim 1 for being easy to be stripped, it is characterized in that：Use is provided with the top of the dynamic model (22) In the cast gate (25) being connected with injection machine, the cast gate (25) connects with die cavity (34).

8. the injection mold according to claim 1 for being easy to be stripped, it is characterized in that：Two pairs are provided with the mould bases (1) Cover half (21) and dynamic model (22), the structure of two pairs of cover half (21) are consistent, and the die cavity of bullet block (32) is respectively on two pairs of dynamic models (22) The first die cavity (35) and the second die cavity (36) for forming product internal layer, second for forming outer layer outside product internal layer Die cavity (36), the second die cavity (36) volume is more than the first die cavity (35) and the second die cavity (36) can cover the first die cavity (35) completely Lid.

9. the injection mold according to claim 8 for being easy to be stripped, it is characterized in that：The mould bases (1) includes cope plate (11) with lower template (12), cope plate (11) is fixedly connected with dynamic model (22), and cover half (21) is fixed in lower template (12).

10. the injection mold according to claim 9 for being easy to be stripped, it is characterized in that：Cope plate (11) and lower template (12) Between be provided with connecting rod (14) for fixed spacing between the two, connecting rod (14) two ends respectively by screw with it is upper It is provided for hanging the suspension ring (13) of mould in template (11), lower template (12) connection, connecting rod (14).