CN107627561A

CN107627561A - A kind of release method of injection mold and the mould

Info

Publication number: CN107627561A
Application number: CN201710971265.XA
Authority: CN
Inventors: 魏亮
Original assignee: Zhejiang Diheng Industrial Co Ltd
Current assignee: Qingdao Kelin Aviation Technology Co ltd
Priority date: 2017-05-18
Filing date: 2017-05-18
Publication date: 2018-01-26
Anticipated expiration: 2037-05-18
Also published as: CN107263817A; CN107263817B; CN107627561B

Abstract

The present invention provides a kind of injection mold and the release method of the mould, the plastic products of die for molding is separated with mould using the injection mold.Wherein the release method comprises the following steps：(1) preceding the mould module and rear mold module of moulded plastic products outer surface are separated so that preceding mould module and rear mold module are in the both ends of a through hole on mold base；(2) the core module of moulded plastic products inner surface is made to be moved to above through hole, plastic products are moved to above through hole with core module；(3) push rod of core module moves forward relative to the sleeve of core module so that two lateral mass of connection scalable with push rod and the core module being hinged with sleeve move forward with push rod, while two lateral mass shrink under the pulling of sleeve to inner side；(4) plastic products separate with core module, are fallen from through hole.

Description

A kind of release method of injection mold and the mould

The application is divisional application, original bill Patent No.：201710351079.6 the applying date is on 05 18th, 2017, It is entitled：A kind of release method of injection mold and the mould.

Technical field

The present invention relates to a kind of injection mold and the release method of the mould.

Background technology

The existing release method for injection mold is typically only applicable to the simple plastics system of inner surface structure on the market Product, and automatic demoulding is then difficult to realize for the complicated plastic products of surface texture, cause to use manually by plastic products It is removed from the molds, reduces production efficiency.

The content of the invention

It is a primary object of the present invention to provide a kind of injection mold that can realize plastic products automatic demoulding, and the mould The release method of tool.

To achieve the above objectives, the present invention provides a kind of injection mold, and it is used to be molded a plastic products, injection mold Including：

Base, its middle part form a through hole；

Mold, mould module, a rear mold module, two rear mold guide rails and a core module before it includes one, the preceding mould module The upper surface of the base is located at along one side of the through hole, another both sides of the two rear mold guide rails along the through hole are mutually flat Be located at the base capablely, the rear mold module can be located between the two rear mold guide rails movably forward and backward, with cause it is described after Mould module move forward when with the preceding mould module matched moulds, when the rear mold module is moved rearwards, the through hole be in it is described before Between mould module and the rear mold module, the core module includes：One jacking block, two lateral mass, a push rod, a sleeve and two Connecting rod, the push rod can be located at the rear mold module movably forward and backward, and the front end of the push rod extends to the preceding mould module, The jacking block is fixedly arranged on the front end of the push rod, and two lateral mass are telescopically located at the both sides of the push rod, so as to described in two Lateral mass can be closer or far from the push rod, and the sleeve is movably sheathed on the push rod, and two lateral mass pass through institute respectively The both sides for stating connecting rod and the sleeve are hinged, and during make it that the sleeve is moved rearwards relative to the push rod, are pulled described in two Lateral mass has a stopper slot to contract, the rear mold module, and the stopper slot prolongs forward from the rear end of the rear mold module Stretch, the sleeve extends a fixture block to the stopper slot, described during make it that the fixture block is moved to the front end of stopper slot Sleeve can not relatively described rear mold module forward movement；And

Drive device, including rear mold drive device and core drive device, the rear mold drive device be used for drive it is described after Mould module moves forward and backward, and the core drive device is used to drive the push rod of the core module to move forward and backward.

Preferably, the both sides of the sleeve form two sliding through holes, and two lateral mass pass through the slip of the sleeve both sides Through hole and the scalable connection of the push rod.

Preferably, the rear mold drive device includes two first cylinders, and two first cylinders are fixedly arranged on the base, Two first cylinders are relative with the both ends of the rear mold rear side respectively, the push rods of two first cylinders symmetrically with institute State the both ends connection of rear mold rear side.

Preferably, the core drive device includes one second cylinder, and second cylinder is fixedly arranged on two first gas Between cylinder, the push rod of the core module extends through the rear mold module to second cylinder, second cylinder The push rod of the core module is driven to move forward and backward.

Preferably, the preceding mould module includes preceding die cap plate and preceding mould cavity plate, and the preceding mould cavity plate is fixedly arranged on the bottom Seat, the preceding die cap plate is separably on the preceding mould cavity plate, and the rear mold module includes rear mold cover plate and rear mold is recessed Mould, the rear mold cavity plate are movably disposed in the two rear mold guide rails, and the rear mold cover plate is separably recessed located at the rear mold On mould.

Preferably, the inner side of the two rear mold guide rails has a slide rail respectively, the rear mold module two lateral two described in Slide rail each extends over out a sliding block, and the sliding block is movably disposed in the slide rail.

Preferably, two lateral mass are by spring and the scalable connection of the push rod, to allow two lateral mass close or Away from the push rod.

The present invention also offer one kind release method out of injection mold by plastic products, comprises the following steps：

(1) preceding the mould module and rear mold module of moulded plastic products outer surface are separated so that the preceding mould module and it is described after Mould module is in the both ends of a through hole on mold base；

(2) the core module of moulded plastic products inner surface is made to be moved to above the through hole, plastic products are with the core mould Block is moved to above the through hole；

(3) push rod of the core module moves forward relative to the sleeve of the core module so that can be stretched with the push rod Two lateral mass of contracting connection and the core module being hinged with the sleeve move forward with the push rod, while two sides Block shrinks under the pulling of the sleeve to inner side；

(4) plastic products separate with the core module, are fallen from the through hole.

Compared with prior art, it is an advantage of the current invention that the injection mold of the present invention is after plastic shaping, by each Drive device may be such that front and rear two parts separation of mould, and make the core portion retracts of mould, so as to which plastic products are complete Separate with mould, and fallen from the through hole of mold base.The injection mold of the present invention can realize that internal structure is complex The automatic demoulding of plastic products.

Brief description of the drawings

Fig. 1 is the preceding mould not shown in figure according to the partial schematic diagram of a preferred embodiment of the injection mold of the present invention Cover plate and rear mold cover plate.

Fig. 2 is the explosive view according to a preferred embodiment of the injection mold of the present invention.

Fig. 3 is the part explosive view according to a preferred embodiment of the injection mold of the present invention, it is shown that core module Each several part.

Fig. 4 A-D show a preferred embodiment moulded plastic products of the injection mold of the present invention and by plastic products The process of the demoulding.

Embodiment

Describe to be used to disclose the present invention below so that those skilled in the art can realize the present invention.It is excellent in describing below Embodiment is selected to be only used as illustrating, it may occur to persons skilled in the art that other obvious modifications.

As Figure 1-Figure 4, a kind of injection mold of the invention includes：Base 1, mold 2 and drive device 3.Mould Tool portion 2 and drive device 3 are located at base 1, and drive device 3 is used to drive each several part of mold 2 to move.

The middle part of base 1 forms a through hole 10, after the plastic products 8 in mold 2 separate with mold 2, plastics system Product 8 are fallen by through hole 10.During actual production, the lower of through hole 10 can place the device for collecting plastic products 8.

Preferably, through hole 10 is a rectangular through-hole.

Mould module 21, a rear mold module 22, two rear mold guide rails 23 and a core module 24 before mold 2 includes one.

The one side of preceding mould module 21 along through hole 10 is fixedly arranged on the upper surface of base 1, and two rear mold guide rails 23 are along through hole 10 Another both sides be located at base 1 in parallel to each other, so as to which two rear mold guide rails 23 are in the both sides of preceding mould module 21.Rear mold module 22 It is movably disposed between two rear mold guide rails 23, so as to which rear mold module 22 can move forward and preceding mould along two rear mold guide rails 23 The matched moulds of module 21, or be moved rearwards and separated with preceding mould module 21.When rear mold module 22 is moved to rearmost end, through hole 10 is in Between preceding mould module 21 and rear mold module 22.

Core module 24 can be movably forward and backward in rear mold module 22.When rear mold module 22 and the preceding matched moulds of mould module 21 When, core module 24 is moved to the rear end of rear mold module 22, inwall, the inwall and core of preceding mould module 21 in rear mold module 22 Die cavity 20 is formed between the outer wall of mould module 24.

Preceding mould module 21 has an injecting hole 211, and injecting hole 211 is by die cavity 20 and ft connection, so as to by melting Plastics are injected in die cavity 20 by injecting hole, after plastics cooling and shaping, have both formed plastic products 8.

Preceding mould module 21 includes preceding die cap plate 212 and preceding mould cavity plate 213, and preceding mould cavity plate 213 is fixedly arranged on base 1, preceding mould Cover plate 212 separably on the preceding mould cavity plate 213, with mould module 21 before causing can open or close, mould module 21 before opening When, mould cavity plate 213, also allows for coating release agent before can clearing up.

Preferably, rear mold module 22 includes rear mold cover plate 222 and rear mold cavity plate 223, and rear mold cavity plate 223 is movably Located at two rear mold guide rails 23, rear mold cover plate 222 is separably located on rear mold cavity plate 223, to cause rear mold module 22 to open Or closure.

In a further embodiment, injecting hole can also be formed at rear mold module 22, as long as ensureing injecting hole by die cavity 20 With ft connection.

The inner side of two rear mold guide rails 23 has a slide rail 231 respectively, and two lateral two slide rails 231 of rear mold module 22 are distinguished Extend a sliding block 224, sliding block 224 is movably disposed in slide rail 231, so that rear mold module 22 is movably disposed in two Between rear mold guide rail 23.

Core module 24 includes a jacking block 241, two lateral mass 242, a push rod 243, a sleeve 244 and two connecting rods 245. Push rod 243 can be located at rear mold module 22 movably forward and backward, and mould module 21 extends forward for the front end of push rod 243, and jacking block 241 is fixed In the front end of push rod 243.Two lateral mass 242 are telescopically located at the both sides of push rod 243, so as to which two lateral mass 242 can be closer or far from Push rod 243, when two lateral mass 242 are close to push rod 243, two lateral mass 242 are to contract, when two lateral mass 242 are away from push rod 243, Two lateral mass 242 stretch out.When moulded plastic products 8, the distance between two lateral mass 242 maximum, now two lateral mass 242 with The outer surface splicing of jacking block 241 is integral, and the outer surface of two lateral mass 242 and jacking block 241 is used for the interior of moulded plastic products 8 Surface.After plastic mould 8 is molded, to contract both sides block 242, you can realize plastic mould 8 and point of core module 24 From.

When moulded plastic products 8, rear mold module 22 and the preceding matched moulds of mould module 21, push rod 243 drive jacking block 241 and two Lateral mass 242 is moved to the rear end of rear mold module 22, and the rear end of two lateral mass 242 is butted on the rear end of rear mold module 22, now two lateral mass The distance between 242 maximums.When plastic products 8 are stripped, mould module 21 and rear mold module 22 separate before making, and are respectively at The both ends of through hole 10, the drive lateral mass 242 of jacking block 241 and two of push rod 243 move forward to the top of through hole 10, the He of jacking block 242 Two lateral mass 242 separate with rear mold module 22, and plastic products 8 are moved to the top of through hole 10 with the lateral mass 242 of jacking block 242 and two.

Sleeve 244 is movably sheathed on push rod 243, and the both sides of sleeve 244 form sliding through hole 2440, two lateral mass 242 sliding through hole 2440 and 243 scalable connection of push rod through the both sides of sleeve 244.

In a preferred embodiment, the scalable connection of lateral mass 242 and push rod 243 is implemented especially by the following manner： The both sides of push rod 243 extend outward a branch sleeve 2431, and lateral mass 242 extends a connecting shaft to branch sleeve 2431 2421, the gap of connecting shaft 2421 ordinatedly in the branch sleeve 2431, when connecting shaft 2421 in branch sleeve 2431 inwardly Or when being displaced outwardly, lateral mass 242 is closer or far from push rod 243.

In a further embodiment, two lateral mass 242 can be by spring and 243 scalable connection of push rod, to allow two lateral mass 242 are connected closer or far from push rod 243, namely one end of the spring with lateral mass 242, and the side of the other end and push rod 243 connects Connect, when lateral mass 242 is close to push rod 243, the spring is compressed, when the spring restores to the original state, between two lateral mass away from It is maximum from reaching.

Two lateral mass 242 are hinged by the both sides of connecting rod 245 and sleeve 244 respectively, with cause lateral mass 242 and sleeve 244 it Between distance it is farthest when, connecting rod 245 is perpendicular to lateral mass 242 and sleeve 244, when push rod 243 moves forward relative to sleeve 244 When, two lateral mass 242 move forward with push rod 243, so as to which connecting rod 245 rotates relative to lateral mass 242 and sleeve 244, connecting rod 245 while rotated, and lateral mass 242 is inwardly pulled, namely causes two lateral mass 242 close to push rod 243, so as to core mould Shrink the both sides of block 24.

The bottom surface of rear mold module 22 has a stopper slot 220, and stopper slot 220 extends forward from the rear end of rear mold module 22, And the front end closing of stopper slot 220.Sleeve 244 extends a fixture block 2441 to the stopper slot 220, and fixture block 2441 is removable Ground is in stopper slot 220, when fixture block 2441 is moved to the front end of stopper slot 220 along stopper slot 220, before can not continuing Enter, continued to move along so as to limit sleeve 224.

Drive device 3 includes rear mold drive device 31 and core drive device 32.Rear mold drive device 31 and rear mold mould Block 22 coordinates, for driving rear mold module 22 movable.Core drive device 32 coordinates with core module 24, for driving Core module 24 is movable.

In a preferred embodiment, rear mold drive device 31 includes two first cylinders 311, and two first cylinders 311 are fixed In base 1, two first cylinders 311 are relative with the both ends of the rear side of rear mold module 22 respectively, and the push rod of two first cylinders 311 is symmetrical Ground is connected with the both ends of the rear side of rear mold module 22, drives rear mold module 22 to move simultaneously using two first cylinders 311, to ensure Not run-off the straight when rear mold module 22 moves forward and backward.

Core drive device 32 includes one second cylinder 321, and the second cylinder 321 is fixedly arranged between two first cylinders 311, The push rod 243 of core module 24 extends through rear mold module 22 to the second cylinder 321, before the driving push rod 243 of the second cylinder 321 After move.That is the push rod of the push rod 243 of core module 24 namely the second cylinder 321.

The step of injection mould processing plastic products 8 and automatic demoulding of the present invention, is as follows：Driven first by rear mold Device 31 makes the forward movement of rear mold module 22 and the preceding matched moulds of mould module 21, is made by core drive device 32 at core module 24 In the rear end of rear mold module 22, now, distance is maximum between two lateral mass 242 of core module 24, the fixture block 2441 of sleeve 244 In the rear end of stopper slot 220；Then molten plastic is injected into die cavity 20 by injecting hole 211, treats that molten plastic is cooled to After type, that is, plastic products 8 are formed, as shown in Figure 4 A；Then rear mold is made by rear mold drive device 31 and core drive device 32 Module 22 and core module 24 are moved rearwards, and are separated with preceding mould module 21, now plastic products are with rear mold module 22 and core mould Block 24 moves together, as shown in Figure 4 B, it is worth mentioning at this point that, it should ensure that rear mold module 22 is moved to the rear of through hole 10；Then Core module 32 is moved forward with respect to rear mold module 22 by core drive device 32, plastic products 8 with core module 24 to Preceding movement, sleeve 244 move forward with push rod 243, and the fixture block 2441 of sleeve 244 moves along stopper slot 220, as shown in Figure 4 C； When fixture block 2441 is moved to 220 front end of stopper slot, sleeve 244 can not continue to move along, now core drive device 32 Continue driving push rod 243 to move forward, now two lateral mass in the presence of sleeve 244 to contract, so as to plastic products 8 Inner surface separation, plastic products 8 complete the demoulding, fallen from the through hole 10 of base 1, as shown in Figure 4 D.

The present invention also provides a kind of release method, suitable for making fast demoulding after a plastic products are molded in injection mold, It the described method comprises the following steps：

(1) preceding the mould module 21 and rear mold module 22 of moulded plastic products outer surface are separated so that preceding mould module 21 and rear mold Module 22 is in the both ends of a through hole 10 on mold base 1；

(2) the core module 24 of moulded plastic products inner surface is made to be moved to the top of through hole 10, plastic products 8 are with core Module 24 is moved to the top of through hole 10；

(3) push rod 243 of the core module 24 moves forward relative to the sleeve 244 of the core module 24 so that with institute Two lateral mass of the scalable connection of push rod 243 and the core module 24 being hinged with the sleeve 244 are stated with the push rod 243 Move forward, at the same two lateral mass 242 under the pulling of the sleeve 244 to contract；

(4) plastic products 8 separate with the core module 24, are fallen from the through hole 10.

By step (1) and (2), plastic products 8 separate with preceding mould module 21 and rear mold module 22, namely plastic products 8 Outer surface and mould separating, the only inner surface of plastic products 8 bonded together with core module 24.By step (3) Afterwards, the both sides of core module 24 also separate with plastic products 8, although now the jacking block 241 of core module 24 also and plastic products 8 bondings, but in the presence of the self gravitation of plastic products 8, may be such that plastic products 8 separate with jacking block 241, because The contact area of plastic products 8 and jacking block 241 is smaller, and the cohesive force between plastic products 8 and jacking block 241 is not strong, because This plastic products 8 can separate with jacking block 241 easily.

General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry For personnel it should be appreciated that the present invention is not limited to the above embodiments, that described in above-described embodiment and specification is the present invention Principle, various changes and modifications of the present invention are possible without departing from the spirit and scope of the present invention, these change and Improvement is both fallen within the range of claimed invention.The protection domain of application claims by appended claims and its Equivalent defines.

Claims

1. a kind of injection mold, for being molded a plastic products, it is characterised in that the injection mold includes:

Base, its middle part form a through hole；

Mold, mould module, a rear mold module, two rear mold guide rails and a core module before it includes one, the preceding mould module The upper surface of the base is located at along one side of the through hole, two rear mold guide rails are parallel to each other along the another both sides of the through hole Ground is located at the base, and the rear mold module can be located between the two rear mold guide rails movably forward and backward, to cause the rear mold With the preceding mould module matched moulds when module moves forward, the through hole is in the preceding mould mould when rear mold module is moved rearwards Between block and the rear mold module, the core module includes：One jacking block, two lateral mass, a push rod, a sleeve and two connecting rods, The push rod can be located at the rear mold module movably forward and backward, and the front end of the push rod extends to the preceding mould module, the top Block is fixedly arranged on the front end of the push rod, and two lateral mass are telescopically located at the both sides of the push rod, so as to which two lateral mass can Closer or far from the push rod, the sleeve is movably sheathed on the push rod, and two lateral mass pass through the connecting rod respectively Be hinged with the both sides of the sleeve, during make it that the sleeve is moved rearwards relative to the push rod, pull two lateral mass to Contract, the rear mold module have a stopper slot,

The stopper slot extends forward from the rear end of the rear mold module, and the sleeve extends a fixture block to the stopper slot, During make it that the fixture block is moved to the front end of stopper slot, the sleeve can not relatively described rear mold module forward movement；

And

Drive device, including rear mold drive device and core drive device, the rear mold drive device be used for drive it is described after Mould module moves forward and backward, and the core drive device is used to drive the push rod of the core module to move forward and backward；

The both sides of the sleeve form two sliding through holes, and two lateral mass push away through the sliding through hole of the sleeve both sides with described The scalable connection of bar；

The rear mold drive device includes two first cylinders, and two first cylinders are fixedly arranged on the base, two first gas Cylinder is relative with the both ends of the rear mold rear side respectively, the push rods of two first cylinders symmetrically with after the rear mold module The both ends connection of side.

2. injection mold according to claim 1, it is characterised in that the core drive device includes one second cylinder, Second cylinder is fixedly arranged between two first cylinders, the push rod of the core module through the rear mold module to The second cylinder extension, second cylinder drive the push rod of the core module to move forward and backward.

3. injection mold according to claim 1, it is characterised in that the preceding mould module includes preceding die cap plate and preceding mould is recessed Mould, the preceding mould cavity plate are fixedly arranged on the base, and the preceding die cap plate is separably located on the preceding mould cavity plate, the rear mold Module includes rear mold cover plate and rear mold cavity plate, and the rear mold cavity plate is movably disposed in the two rear mold guide rails, the rear mold Cover plate is separably on the rear mold cavity plate.

4. injection mold according to claim 1, it is characterised in that the inner side of the two rear mold guide rails has one to slide respectively Rail, two lateral two slide rails of the rear mold module each extend over out a sliding block, and the sliding block is movably disposed in the cunning In rail.

5. according to any described injection molds of claim 1-4, it is characterised in that two lateral mass are pushed away by spring with described The scalable connection of bar, to allow two lateral mass closer or far from the push rod.

6. one kind release method out of injection mold by plastic products, it is characterised in that comprise the following steps：