CN110126174A - A kind of moulding process adjusting active type chamber by spring - Google Patents
A kind of moulding process adjusting active type chamber by spring Download PDFInfo
- Publication number
- CN110126174A CN110126174A CN201910466705.5A CN201910466705A CN110126174A CN 110126174 A CN110126174 A CN 110126174A CN 201910466705 A CN201910466705 A CN 201910466705A CN 110126174 A CN110126174 A CN 110126174A
- Authority
- CN
- China
- Prior art keywords
- type chamber
- active type
- mobile
- spring
- volume
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
- B29C45/0055—Shaping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/03—Injection moulding apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/36—Moulds having means for locating or centering cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/80—Measuring, controlling or regulating of relative position of mould parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C2045/2697—Deformed geometry of the cavity
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Prostheses (AREA)
- Materials For Medical Uses (AREA)
Abstract
The present invention provides a kind of moulding process that active type chamber is adjusted by spring, it is characterized in that, its forming process includes the following steps: when second of mobile mechanism touches stent, by being formed active type chamber with mobile mould, stent, second of mobile mechanism and being formed active type chamber A, molding, active type chamber D is formed at this time, the volume for adjusting active type chamber forms active type chamber B, liquid material is injected into the active type chamber B, the mobile mould is mobile, active type chamber volume to product requirement volume, forms active type chamber E from large to small, and product is cooled and shaped.Of the invention adjusts the moulding process of active type chamber due to being equipped with active type chamber by spring, the size of active type chamber can be adjusted according to the demand of product, volume before making active type chamber stop compression is greater than the volume of product, liquid material is easy flowing in the active type chamber of large volume, product is easy molding, and product internal stress is good, appearance is beautiful, thickness is uniform, composite material is not easy to be separated from each other.
Description
Technical field
The present invention relates to a kind of moulding process more particularly to a kind of moulding process that active type chamber is adjusted by spring.
Background technique
Existing injection molding plastic working method is after plastics are plasticized in injection molding machine heating cylinder, from plunger or toward
Multiple screw of injection forms the plastic working method of product into the die cavity of Guan Bi mould, this method is capable of processing complex contour, size essence
True or the product with inserts, high production efficiency, most of thermoplastics and certain thermosetting plasticses (such as phenoplasts)
It is processed with this method.
But the material in existing injection moulding for injection molding must have good fluidity, could be full of die cavity to be made
Product.
Bad for the mobility material for injection molding, using existing injection molding plastic working method, at
Cause flow resistance big since material fluidity is bad during type, it is not easy to form, in order to realize that formed product must add
Big injection pressure and raising injection speed, increasing injection pressure and improving injection speed will lead to the internal stress of institute's shaped article
Greatly, appearance is bad, in uneven thickness, composite material is easily separated, to make that product quality is very poor, yield is low.
During forming thin-walled products, even if using having the material of good fluidity injection molding to cause since type chamber is less than normal
Liquid material flow resistance is big, it is not easy to it forms, in order to realize that formed product must increase injection pressure and raising injection speed,
The internal stress that increasing injection pressure and raising injection speed will lead to institute's shaped article is big, and appearance is bad, in uneven thickness, compound
Material is easily separated, to make that product quality is very poor, yield is low.
Summary of the invention
Based on the deficiencies of the prior art, active type chamber is adjusted by spring it is an object of the present invention to a kind of
Moulding process can adjust the size of active type chamber according to the demand of product, make due to being equipped with active type chamber and elastic device
Active type chamber stops the volume that the volume before compression is greater than product, the resistance that liquid material flows in the active type chamber of large volume
Power can become smaller, and liquid material is easy flowing, and product is easy molding under low speed or low pressure, and product internal stress is good, appearance drift
Bright, thickness is uniformly, composite material is not easy to be separated from each other.
To achieve the goals above, special the present invention provides a kind of moulding process for adjusting active type chamber by spring
Sign is that forming process includes the following steps:
The first step is melted material for liquid by solid-state.
Second step is combined by moving bearing device, mold insert and spring or spring assembly form second of mobile mechanism, mobile
Mould is mobile to stent direction, starts to mold.
Third step, when second of mobile mechanism touches stent, by with mobile mould, stent, second of moving machine
Structure forms active type chamber and forms active type chamber A, and active type chamber volume is maximum at this time, while second of mobile mechanism is relative to described
The mobile moveable maximum distance of mould is L0.
Mobile mould described in 4th step continues mobile to the stent direction, until the mobile mould and second of moving machine
Structure fitting, reaches complete molding state, forms active type chamber D at this time, active type chamber D volume is minimum, at this time second of moving machine
Structure is L1, L1=0 relative to the distance of the mobile mould, while the compression parameters of the mobile mould are arranged.
Compression parameters of 5th step according to the mobile mould of above-mentioned setting control the mobile mould to institute by sensor
The mobile distance of second of mobile mechanism's opposite direction is stated, the volume for adjusting active type chamber forms active type chamber B, makes active type chamber
B is in running order, and second of mobile mechanism is L2, second of mobile mechanism relative to the distance of the mobile mould at this time
Continue to be bonded with the stent under the action of spring or the spring assembly and keeps the closing of active type chamber.
Liquid material is injected the active type chamber C by the 6th step.
Mobile mould described in 7th step is mobile, and active type chamber volume to product requirement volume, forms active type chamber from large to small
E, second of mobile mechanism is L3, L0 > L2 > L3 > L1 relative to the distance of the mobile mould at this time.
The cooling and solidifying molding of 8th step product, the mobile mould is mobile to the direction opposite with the stent, opens and lives
Ejector half chamber, spring or spring assembly flick second of mobile mechanism and the mobile mould, second of moving machine
Structure is mobile to the stent direction relative to the mobile mould, and product 4 takes out from the mobile mould.
Liquid material is injected the active type chamber C and active type chamber described in the 7th step to work the successive suitable of the two steps
Sequence is to start the movement of the 7th step during liquid material is injected the active type chamber C by the 6th step, i.e., the described active type chamber is opened
Beginning work, active type chamber volume form active type chamber E from large to small to product requirement volume, and the volume of the active type chamber A >
The volume of the active type chamber B > active type chamber C volume > active type chamber E volume >=active type chamber D
Volume.
The improvement of the moulding process of active type chamber is adjusted by spring as the present invention, the present invention passes through spring adjusting activity
The liquid material of the moulding process of type chamber is heavy viscous material or the composite material being easily separated from each other.
The improvement of the moulding process of active type chamber is adjusted by spring as the present invention, the present invention passes through spring adjusting activity
The moulding process of type chamber further includes guidance set, and the mobile mould further includes second of mobile mechanism and position-limit mechanism.
The improvement of the moulding process of active type chamber is adjusted by spring as the present invention, the present invention passes through spring adjusting activity
The liquid material of the moulding process of type chamber is low viscosity material or is not easy the composite material being separated from each other.
The improvement of the moulding process of active type chamber is adjusted by spring as the present invention, the present invention passes through spring adjusting activity
The product of the moulding process of type chamber is product, cell rear cover, mobile phone shell or the optics product of thin-walled.
The improvement of the moulding process of active type chamber is adjusted by spring as the present invention, the present invention passes through spring adjusting activity
Material is transported to thawing apparatus by the pretreatment of the moulding process of type chamber.
The improvement of the moulding process of active type chamber is adjusted by spring as the present invention, the present invention passes through spring adjusting activity
It is relative to conventional molding process that liquid material is injected the active type chamber by the 5th step of the moulding process of type chamber
It is completed under conditions of lower injection rate or lower injection pressure.
The improvement of the moulding process of active type chamber is adjusted by spring as the present invention, the present invention passes through spring adjusting activity
The active type chamber of the moulding process of type chamber is one or more.
The improvement of the moulding process of active type chamber is adjusted by spring as the present invention, the present invention passes through spring adjusting activity
The active type chamber of the moulding process of type chamber is two or two or more be symmetrically arranged.
Compared with prior art, the present invention has below by the moulding process that spring adjusts active type chamber beneficial to effect
Fruit: due to being equipped with active type chamber and elastic device, the size of active type chamber can be adjusted according to the demand of product, makes active type
Chamber stops the volume that the volume before compression is greater than product, and the resistance that liquid material flows in the active type chamber of large volume can become
Small, liquid material is easy flowing, and product is easy molding under low speed or low pressure, and product internal stress is good, appearance is beautiful, thickness
Uniformly, composite material is not easy to be separated from each other.
Detailed description of the invention
Fig. 1 is that the first step that the present invention is adjusted by spring in the moulding process preferred embodiment one and two of active type chamber is shown
It is intended to.
Fig. 2 is that the second step that the present invention is adjusted by spring in the moulding process preferred embodiment one and two of active type chamber shows
It is intended to.
Fig. 3 is that the third step that the present invention is adjusted by spring in the moulding process preferred embodiment one and two of active type chamber is shown
It is intended to.
Fig. 4 is that the 4th step that the present invention is adjusted by spring in the moulding process preferred embodiment one and two of active type chamber is shown
It is intended to.
Fig. 5 is that the 6th step that the present invention is adjusted by spring in the moulding process preferred embodiment one and two of active type chamber is shown
It is intended to.
Fig. 6 is that the 6th step that the present invention is adjusted by spring in the moulding process preferred embodiment one and two of active type chamber is shown
It is intended to.
Fig. 7 is that the 7th step that the present invention is adjusted by spring in the moulding process preferred embodiment one and two of active type chamber is shown
It is intended to.
Fig. 8 is that the 8th step that the present invention is adjusted by spring in the moulding process preferred embodiment one and two of active type chamber is shown
It is intended to.
Fig. 9 is that the mobile mould that the present invention is adjusted by spring in the moulding process preferred embodiment one and two of active type chamber shows
It is intended to.
Figure 10 is the stent in the moulding process preferred embodiment one and two that the present invention passes through spring adjusting active type chamber
Schematic diagram.
Figure 11 is the product light guide plate in the moulding process preferred embodiment one that the present invention passes through spring adjusting active type chamber
Appearance diagram.
After Figure 12 passes through the product mobile phone that spring is adjusted in the moulding process preferred embodiment two of active type chamber for the present invention
The appearance diagram of lid.
Figure 13, which passes through for the present invention in the moulding process preferred embodiment one and two of spring adjusting active type chamber, to be had
The mobile mould and stent of the movable type cavity mould preferred embodiment of elastic device mold later the schematic diagram of the section structure.
Figure 14, which passes through for the present invention in the moulding process preferred embodiment one and two of spring adjusting active type chamber, to be had
The mobile mould and stent of the movable type cavity mould preferred embodiment of elastic device mold the portion K in later the schematic diagram of the section structure
Partial enlarged view.
Specific embodiment
The present invention is suitable for production thin-wall product, cell rear cover, mobile phone by the moulding process that spring adjusts active type chamber
Shell or optics product, the material used are heavy viscous material or low viscosity material, it is not easy to the composite material being separated from each other
Or the composite material being easily separated from each other.
With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, Figure 11, Figure 12, Figure 13 and Figure 14, in detail
The thin description present invention adjusts the preferred embodiment one and two of the moulding process of active type chamber by spring.
It is a kind of moulding process of thin-wall product such as light guide plate in the preferred embodiment of the invention one.
Light guide plate with a thickness of 0.4mm, a length of 152mm, width 70mm, raw material use PC-1501, injection molding machine model:
Sumitomo, that is, Sumitomo LGP180, screw diameter 25mm.
The molding of existing light guide plate is all directly molded using common die, and the size of mold cavity cannot change,
Directly toward after the intracavitary material feeding of fixed, added by the plastics that plunger or reciprocating screw injection form product into the die cavity of Guan Bi mould
Work method.
Common die is directly molded ultrathin products light guide plate, although the liquid material good fluidity of injection, due to super
Under the forming recess volume of thin product light guide plate, it is ultra-thin, with higher pressure carry out material feeding, pressure 2800kgf/cm2, high
Pressure causes the internal stress of molding light guide plate big, and appearance is bad, feed inlet proximal end and distal thickness are uneven.
In the present embodiment, the mold of forming light guide plate of the invention using active type chamber, the size of mold cavity
Can change, make before material feeding or the volume of active type chamber is greater than the volume of product when material feeding, it is possible to higher speed compared with
Low pressure carries out the liquid material of injection good fluidity, and the more a height of 1000mm/s of charging rate, material feeding pressure is lower to be
1800kgf/cm, low pressure cause the internal stress of molding light guide plate small, and appearance is good, feed inlet proximal end and distal thickness are uniform.
Firstly, PC raw material are dried, it is transported to injection molding machine, by raw material by solid state transformed for liquid.
Second step combines 1.1.1 and spring by moving bearing device 1.1.2, mold insert or spring assembly 1.1.3 forms second
Secondary mobile mechanism 1.1, mobile mould 1 is mobile to 2 direction of stent, and the F1 being detailed in attached drawing 2 starts to mold.
Third step, when second of mobile mechanism 1.1 touches stent 2, by with mobile mould 1, stent 2, second
Mobile mechanism 1.1 forms active type chamber and forms active type chamber A, the F2 being detailed in attached drawing 3, and active type chamber volume is maximum at this time, together
When second of mobile mechanism 1.1 relative to the moveable maximum distance of the mobile mould 1 be L0.
Mobile mould 1 described in 4th step continues mobile to 2 direction of stent, until the mobile mould 1 is moved with second
Motivation structure 1.1 is bonded, and reaches complete molding state, and the F3 being detailed in attached drawing 4 forms active type chamber D at this time, and active type chamber D holds
Product is minimum, and second of mobile mechanism 1.1 is L1, L1=0 relative to the distance of the mobile mould 1 at this time, while the shifting is arranged
The compression parameters of dynamic model 1.This process be allow injection molding machine to sense the state of the smallest chamber of mold for Correction Die, if
Injection molding machine is not allowed to sense the state of correct smallest chamber, it will so that the amount of charging is generated error causes needed for formed product
The amount of raw material is excessive or very few.
Compression parameters of 5th step according to the mobile mould 1 of above-mentioned setting, control the mobile mould by sensor 1.4
1 distance mobile to second of mobile mechanism, 1.1 opposite direction, the volume for adjusting active type chamber form active type chamber B, in detail
See the F4 in attached drawing 5, keep active type chamber B in running order, second of mobile mechanism 1.1 is relative to the mobile mould 1 at this time
Distance be L2, second of mobile mechanism 1.1 continues to be bonded with the stent 2 under the action of the spring 1.1.3
Keep the closing of active type chamber.
Liquid material high velocity, low pressure is injected the active type chamber C, the F5 being detailed in attached drawing 6 by the 6th step, and material feeding speed is
1000mm/s, material feeding pressure are 1800kgf/cm2。
Mobile mould 1 described in 7th step is mobile, and active type chamber volume to product requirement volume, forms active type chamber from large to small
E, the F6 being detailed in attached drawing 7, second of mobile mechanism is L3, L0 > L2 > L3 > relative to the distance of the mobile mould at this time
L1。
The cooling and solidifying molding of 8th step product, the mobile mould is mobile to the direction opposite with the stent, opens and lives
Ejector half chamber, the F7 being detailed in attached drawing 8, spring 1.6 flick second of mobile mechanism 1.1 and the mobile mould 1, and described
Secondary mobile mechanism 1.1 relative to the mobile mould 1 to 2 direction of stent mobile, the F8 being detailed in attached drawing 8, product 4 from
The mobile mould takes out.
Liquid material is injected active type chamber described in the active type chamber C and the 7th step and worked the two steps by the 6th step
Sequencing is to start the movement of the 7th step during liquid material is injected the active type chamber C by the 6th step, i.e. injection is certain
After the liquid material of amount, the active type chamber is started to work, and the mobile mould 1 starts to move, and continues to keep material feeding, guarantees to produce
Raw material required for product form is sufficient, after meeting raw material needed for product, stops material feeding, active type chamber volume extremely produces from large to small
Product want cube, form active type chamber E, the mobile mould 1 stops movement, at this point, will be more according to demand of the product to raw material
Remaining raw material pumpback, volume > active type chamber B volume > active type chamber C volume of the active type chamber A > described
The volume of active type chamber E >=active type chamber D volume.
In the present embodiment, the present invention further includes guidance set by the moulding process that spring adjusts active type chamber, institute
Stating mobile mould 1 further includes second of mobile mechanism 1.1 and position-limit mechanism 1.2.
In the present embodiment, the product for the moulding process that the present invention adjusts active type chamber by spring is the production of thin-walled
Product, cell rear cover, mobile phone shell or optics product.
In the present embodiment, the present invention is one by the active type chamber that spring adjusts the moulding process of active type chamber
It is a.
In the present embodiment, the present invention is symmetrical by the active type chamber that spring adjusts the moulding process of active type chamber
Two of arrangement.
It is a kind of using the moulding process for being easily separated from each other composite molding cell phone rear cover in preferred embodiments two.
Cell phone rear cover needs to have hardness height and the big performance of intensity simultaneously, and hardness height solution cell phone rear cover is wear-resisting and less
The using effect of scratch, the resistance to using effect fallen with anti-cracking of the big solution cell phone rear cover of intensity.
Polymethyl methacrylate, i.e. poly methyl methacrylate, abbreviation PMMA also known as do acryl, Asia
Gram force or organic glass have higher clarity and brightness, heat-resist, and have tough and tensile, and matter is hard, rigidity characteris, is used as hand
Machine rear cover shaping raw material can satisfy the using effect of the wear-resisting and less scratch of cell phone rear cover.
Polycarbonate, abbreviation PC are the high molecular polymer in strand containing carbonate group, a kind of tough thermoplasticity
Resin, shock resistance is good, can satisfy the resistance to using effect fallen with anti-cracking of cell phone rear cover as cell phone rear cover shaping raw material.
In order to meet cell phone rear cover hardness height and the big performance of intensity simultaneously, PMMA+PC composite molding can be used
Cell phone rear cover, still, injection rate range is 500mm/s or more, pressure model in traditional PMMA+PC composite material process planning
It encloses and forms difficulty since the speed of material feeding is fast, pressure causes greatly PMMA and PC to be easily separated from each other for 2800-3000kgf/cm2
Greatly, yield is low.
It, can be low relative to conventional molding process low speed due to using active type chamber in preferred embodiments two of the invention
It is formed under conditions of pressure, since the speed of material feeding is relatively slow, pressure is relatively small, PMMA is not easy to be separated from each other with PC, at
Type difficulty becomes smaller, and yield greatly improves.
It is as follows using PMMA+PC composite molding cell phone rear cover specific embodiment, the composite material of PMMA+PC is dried
It is dry, it is transported to injection molding machine, by the composite material of PMMA+PC by solid state transformed for liquid.
Second step combines 1.1.1 and spring by moving bearing device 1.1.2, mold insert or spring assembly 1.1.3 forms second
Secondary mobile mechanism 1.1, mobile mould 1 is mobile to 2 direction of stent, and the F1 being detailed in attached drawing 2 starts to mold.
Third step, when second of mobile mechanism 1.1 touches stent 2, by with mobile mould 1, stent 2, second
Mobile mechanism 1.1 forms active type chamber and forms active type chamber A, the F2 being detailed in attached drawing 3, and active type chamber volume is maximum at this time, together
When second of mobile mechanism 1.1 relative to the moveable maximum distance of the mobile mould 1 be L0.
Mobile mould 1 described in 4th step continues mobile to 2 direction of stent, until the mobile mould 1 is moved with second
Motivation structure 1.1 is bonded, and reaches complete molding state, and the F3 being detailed in attached drawing 4 forms active type chamber D at this time, and active type chamber D holds
Product is minimum, and second of mobile mechanism 1.1 is L1, L1=0 relative to the distance of the mobile mould 1 at this time, while the shifting is arranged
The compression parameters of dynamic model 1.This process be allow injection molding machine to sense the state of the smallest chamber of mold for Correction Die, if
Injection molding machine is not allowed to sense the state of correct smallest chamber, it will so that the amount of charging is generated error causes needed for formed product
The amount of raw material is excessive or very few.
Compression parameters of 5th step according to the mobile mould 1 of above-mentioned setting, control the mobile mould by sensor 1.4
1 distance mobile to second of mobile mechanism, 1.1 opposite direction, the volume for adjusting active type chamber form active type chamber B, in detail
See the F4 in attached drawing 5, keep active type chamber B in running order, at this time second of mobile mechanism relative to the mobile mould away from
From for L2, second of mobile mechanism 1.1 continues to be bonded holding with the stent 2 under the action of the spring 1.1.3
The closing of active type chamber.
Liquid material low speed low pressure is injected the active type chamber C, the F5 being detailed in attached drawing 6, injection rate model by the 6th step
It encloses for 180-330mm/s, pressure limit 1500-2000kgf/cm2, in the present embodiment, speed 300mm/s, pressure is
1800kgf/cm2。
Mobile mould 1 described in 7th step is mobile, and active type chamber volume to product requirement volume, forms active type chamber from large to small
E, the F6 being detailed in attached drawing 7, second of mobile mechanism 1.1 is L3, L0 > L2 > L3 relative to the distance of the mobile mould 1 at this time
> L1.
The cooling and solidifying molding of 8th step product, the mobile mould 1 is mobile to the direction opposite with the stent 2, opens
Active type chamber, the F7 being detailed in attached drawing 8, spring 1.6 flicks second of mobile mechanism 1.1 and the mobile mould 1, described
Second of mobile mechanism 1.1 moves relative to the mobile mould 1 to 2 direction of stent, the F8 being detailed in attached drawing 8, product 4
It is taken out from the mobile mould 1.
Liquid material is injected active type chamber described in the active type chamber C and the 7th step and worked the two steps by the 6th step
Sequencing is to start the movement of the 7th step during liquid material is injected the active type chamber C by the 6th step, i.e. injection is certain
After the liquid material of amount, the active type chamber is started to work, and the mobile mould 1 starts to move, and continues to keep material feeding, guarantees to produce
Raw material required for product form is sufficient, after meeting raw material needed for product, stops material feeding, active type chamber volume extremely produces from large to small
Product want cube, form active type chamber E, the mobile mould 1 stops movement, at this point, will be more according to demand of the product to raw material
Remaining raw material pumpback, volume > active type chamber B volume > active type chamber C volume of the active type chamber A > described
The volume of active type chamber E >=active type chamber D volume.
In the present embodiment, the present invention further includes guidance set 3, institute by the moulding process that spring adjusts active type chamber
Stating mobile mould 1 further includes second of mobile mechanism 1.1 and position-limit mechanism 1.2.
In the present embodiment, the product for the moulding process that the present invention adjusts active type chamber by spring is the production of thin-walled
Product, cell rear cover, mobile phone shell or optics product.
In the present embodiment, the present invention is symmetrical by the active type chamber that spring adjusts the moulding process of active type chamber
Two of arrangement.
In other embodiments, the present invention is one by the active type chamber that spring adjusts the moulding process of active type chamber
It is a.
In other embodiments, the present invention is one by the active type chamber that spring adjusts the moulding process of active type chamber
More than a.
In other embodiments, the present invention is pair by the active type chamber that spring adjusts the moulding process of active type chamber
Claim arrangement two or more.
In the present embodiment, the present invention is adjusted by spring has elastic device used in the moulding process of active type chamber
Movable type cavity mould comprising mobile mould 1 and stent 2, the mobile mould 1 is equipped with mobile mould support device 1.10, described
Stent, which sets 2, stent support device 2.4, and the mobile mould 1 and the stent 2 cooperate, and the mobile mould 1 is equipped with
Mobile mould mold core 1.12, the stent 2 are equipped with stent mold core 2.1, which is characterized in that further include guidance set 3, water channel
Device 5 and location structure 6, the mobile mould 1 include elastic device 1.6, second of mobile mechanism 1.1 and limiting device 1.2, institute
It states second of mobile mechanism 1.1 and passes through the elastic device 1.6, the guidance set 3, the limiting device 1.2 and the shifting
Dynamic model 1 is flexibly connected, and the mobile mould mold core 1.12 of the mobile mould 1 is located in the mobile mould 1 by the location structure 6
In the support device 1.10, the mold core 2.1 of the stent 2 is located in the institute of the stent 2 by the location structure 6
It states in support device 2.4, the water channel device 5 is distributed in the mobile mould 1 and in the stent 2, the limiting device
1.2 are compressed in the elastic device 1.6 between support device 1.10 described in second of mobile mechanism 1.1 and the mobile mould 1.
In the present embodiment, the present invention is adjusted by spring has elastic device used in the moulding process of active type chamber
Movable type cavity mould further include exhaust apparatus 8, second of mobile mechanism 1.1 include moving bearing device 1.1.1, mold insert
It combines 1.1.2 and connector 1.1.3, the mold insert combination 1.1.2 is fixed on the mobile carrying by the connector 1.1.3
On device 1.1.1, the mold insert combination 1.1.1, the mobile mould mold core 1.12 and the cover half core 2.1 form active type chamber,
The exhaust apparatus 8 is located at around the active type chamber, and the mold insert combination 1.1.2 directly or indirectly passes through the positioning
Structure 6 is located in support device 1.10 described in the mobile mould 1.
In the present embodiment, the present invention is adjusted by spring has elastic device used in the moulding process of active type chamber
The exhaust apparatus 8 of movable type cavity mould include air drain 8.1 and exhaust clearance 8.2, the exhaust clearance 8.2 and the gas
8.1 connection of slot, the exhaust clearance 8.2 divide for two or more, the size of each exhaust clearance 8.2 according to
The difference of the 8.2 place die location of exhaust clearance is set.
In the present embodiment, the present invention is adjusted by spring has elastic device used in the moulding process of active type chamber
Movable type cavity mould the exhaust clearance 8.2 size from the feed inlet most proximal end from mold to the feed inlet from mold most
The distal end position that successively size of variation or the exhaust clearance 8.2 is most difficult to from the position that mold molding is easiest to mold molding
It sets and successively changes.
In the present embodiment, the present invention is adjusted by spring has elastic device used in the moulding process of active type chamber
Movable type cavity mould the location structure 6 include sprue bushing mold insert 6.1, feed inlet mold insert 6.2 and positioning pin 6.3, the purt
Mouth mold insert 6.2 is mounted on the center of the stent 2 by positioning pin 6.3, and the feed inlet mold insert 6.2 passes through positioning pin
6.3 are mounted on the center of the mobile mould 1.
In the present embodiment, the present invention is adjusted by spring has elastic device used in the moulding process of active type chamber
The active type chamber of movable type cavity mould be two.
In the present embodiment, the present invention is adjusted by spring has elastic device used in the moulding process of active type chamber
Movable type cavity mould described in exhaust clearance 8.2 size be L, L=0.025mm.
Compared with prior art, the invention has the following advantages: since it is equipped with active type chamber and elastic device,
And the size of active type chamber can be adjusted according to the difference of required shaped article specification and size, before material feeding or material feeding
When, the volume of active type chamber can be greater than the volume of the shaped article, therefore raw material is in the resistance meeting of the intracavitary flowing of active type
Become smaller, make raw material in the intracavitary easy flowing of active type, to realize that product is easy molding, leads to that product internal stress is good, appearance drift
Bright, thickness is uniformly, composite material is not readily separated.
Above disclosed is only presently preferred embodiments of the present invention, cannot limit the right of the present invention with this certainly
Range, therefore according to equivalent variations made by scope of the present invention patent, it is still within the scope of the present invention.
Claims (12)
1. a kind of moulding process for adjusting active type chamber by spring, which is characterized in that its forming process includes the following steps:
The first step is melted material for liquid by solid-state.
Second step is combined by moving bearing device, mold insert and spring or spring assembly form second of mobile mechanism, mobile mould to
Stent direction is mobile, starts to mold.
Third step, when second of mobile mechanism touches stent, by with mobile mould, stent, second of mobile mechanism's group
Active type chamber A is formed at active type chamber, active type chamber volume is maximum at this time, while second of mobile mechanism is relative to the movement
The moveable maximum distance of mould is L0.
Mobile mould described in 4th step continues mobile to the stent direction, until the mobile mould and second of mobile mechanism paste
It closes, reaches complete molding state, form active type chamber D at this time, active type chamber D volume is minimum, at this time second of mobile mechanism's phase
Distance for the mobile mould is L1, L1=0, while the compression parameters of the mobile mould are arranged.
Compression parameters of 5th step according to the mobile mould of above-mentioned setting control the mobile mould to described by sensor
The mobile distance of secondary mobile mechanism's opposite direction, the volume for adjusting active type chamber form active type chamber B, make at active type chamber B
In working condition, second of mobile mechanism is L2 relative to the distance of the mobile mould at this time, and second of mobile mechanism exists
Continue to be bonded with the stent under the action of the spring or the spring assembly and keeps the closing of active type chamber.
Liquid material is injected the active type chamber C by the 6th step.
Mobile mould described in 7th step is mobile, and active type chamber volume to product requirement volume, forms active type chamber E from large to small, this
When second of mobile mechanism relative to the mobile mould distance be L3, L0 > L2 > L3 > L1.
The cooling and solidifying molding of 8th step product, the mobile mould is mobile to the direction opposite with the stent, opens active type
Chamber, spring or spring assembly flick second of mobile mechanism and the mobile mould, second of mobile mechanism phase
Mobile to the stent direction for the mobile mould, product 4 takes out from the mobile mould.
Liquid material is injected the active type chamber C and active type chamber described in the 7th step and worked the successive of the two steps by the 6th step
Sequence is to start the movement of the 7th step, i.e., the described active type chamber during liquid material is injected the active type chamber C by the 6th step
It starts to work, active type chamber volume to product requirement volume, forms active type chamber E, the volume of the active type chamber A from large to small
Volume > active type chamber C volume > active type chamber E volume >=active type chamber D of > active type chamber the B
Volume.
2. the moulding process according to claim 1 for adjusting active type chamber by spring, which is characterized in that the liquid material
Material is heavy viscous material or the composite material being easily separated from each other.
3. the moulding process according to claim 1 for adjusting active type chamber by spring, which is characterized in that further include guiding
Component, the mobile mould further include second of mobile mechanism and position-limit mechanism.
4. the moulding process according to claim 1 for adjusting active type chamber by spring, which is characterized in that the liquid material
Material is low viscosity material or is not easy the composite material being separated from each other.
5. the moulding process according to claim 2 for adjusting active type chamber by spring, which is characterized in that the product is
Product, cell rear cover, mobile phone shell or the optics product of thin-walled.
6. the moulding process according to claim 1 for adjusting active type chamber by spring, which is characterized in that the product is
Product, cell rear cover, mobile phone shell or the optics product of thin-walled.
7. the moulding process according to claim 1 for adjusting active type chamber by spring, which is characterized in that further include following
Step: material is transported to thawing apparatus by pretreatment.
8. the moulding process according to claim 4 for adjusting active type chamber by spring, which is characterized in that further include following
Step: material is transported to thawing apparatus by pretreatment.
9. the moulding process according to claim 5 for adjusting active type chamber by spring, which is characterized in that further include following
Step: material is transported to thawing apparatus by pretreatment.
10. the moulding process according to claim 4 for adjusting active type chamber by spring, which is characterized in that the described 5th
Step by liquid material inject the active type chamber be relative to conventional molding process lower injection rate or lower note
Enter and completes under conditions of pressure.
11. the moulding process according to claim 1 for adjusting active type chamber by spring, which is characterized in that the activity
Type chamber is one or more.
12. the moulding process according to claim 9 for adjusting active type chamber by spring, which is characterized in that the activity
Type chamber is two or two or more be symmetrically arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910466705.5A CN110126174A (en) | 2019-05-30 | 2019-05-30 | A kind of moulding process adjusting active type chamber by spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910466705.5A CN110126174A (en) | 2019-05-30 | 2019-05-30 | A kind of moulding process adjusting active type chamber by spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110126174A true CN110126174A (en) | 2019-08-16 |
Family
ID=67583203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910466705.5A Pending CN110126174A (en) | 2019-05-30 | 2019-05-30 | A kind of moulding process adjusting active type chamber by spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110126174A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202071294U (en) * | 2011-05-14 | 2011-12-14 | 冠捷显示科技（厦门）有限公司 | Novel injection compression moulding mould |
-
2019
- 2019-05-30 CN CN201910466705.5A patent/CN110126174A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202071294U (en) * | 2011-05-14 | 2011-12-14 | 冠捷显示科技（厦门）有限公司 | Novel injection compression moulding mould |
Non-Patent Citations (2)
| Title |
|---|
| 人力资源和社会保障部职业技能鉴定中心: "《工具钳工（高级）》", 30 September 2016, 中国石油大学出版社 * |
| 梁明昌: "《注塑成型实用技术》", 31 January 2010, 辽宁科学技术出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1032196C (en) | Process and apparatus for injection molding | |
| EP1138459A3 (en) | Clamp pressure control of injection molder | |
| CN210705739U (en) | Movable cavity mold with elastic device | |
| CN210121947U (en) | Mould with movable cavity | |
| CN110126174A (en) | A kind of moulding process adjusting active type chamber by spring | |
| CN209755946U (en) | injection mold for quickly forming injection molding piece | |
| CN209869277U (en) | Injection mold of interface unit charges | |
| CN110315676A (en) | A kind of moulding process of included hydraulic device mold | |
| CN210999761U (en) | Mobile phone rear cover blank forming die with middle frame and movable cavity adjusted through spring | |
| CN210121948U (en) | Movable cavity mold with hydraulic device | |
| CN206663652U (en) | A kind of double-colored encapsulated injection mold | |
| CN110126175A (en) | A kind of moulding process of product | |
| CN103128924A (en) | Fixed die compressible die | |
| CN110355944B (en) | Mobile phone rear cover blank forming die with movable cavity adjusted through spring and comprising middle frame | |
| CN211165037U (en) | Mobile phone rear cover blank forming die with hydraulic device and comprising middle frame | |
| CN214137101U (en) | Integral forming die for rod piece injection molding | |
| CN110126202A (en) | A kind of mold with active type chamber | |
| CN113799337B (en) | Adjustable quick injection mold | |
| CN101195266A (en) | Dual compressing and shaping method for plastic jetting-molding machine | |
| CN110126177A (en) | A kind of moulding process for the cell phone rear cover embryo material including center adjusting active type chamber by spring | |
| CN204977299U (en) | Mould of mechanism of loosing core is pushed up to one side in front mould, back mould segmentation | |
| CN110126200A (en) | A kind of movable type cavity mould of included hydraulic device | |
| CN114801226A (en) | Automatic efficient cosmetic pump head production device and process | |
| CN216400404U (en) | Mechanism die capable of accurately adjusting flow | |
| CN110126201A (en) | A kind of movable type cavity mould with elastic device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190816 |