CN106626265B - A kind of key injection mold - Google Patents
A kind of key injection mold Download PDFInfo
- Publication number
- CN106626265B CN106626265B CN201611200033.6A CN201611200033A CN106626265B CN 106626265 B CN106626265 B CN 106626265B CN 201611200033 A CN201611200033 A CN 201611200033A CN 106626265 B CN106626265 B CN 106626265B
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- Prior art keywords
- mandril
- water route
- molding
- ejecting mechanism
- chamber
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- 238000002347 injection Methods 0.000 title claims abstract description 21
- 239000007924 injection Substances 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 65
- 239000000463 material Substances 0.000 claims abstract description 44
- 238000000465 moulding Methods 0.000 claims abstract description 44
- 230000007246 mechanism Effects 0.000 claims abstract description 43
- 238000009432 framing Methods 0.000 claims abstract description 20
- 238000001746 injection moulding Methods 0.000 claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 239000000047 product Substances 0.000 claims description 53
- 239000006227 byproduct Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 2
- 239000002699 waste material Substances 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 8
- 238000001816 cooling Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 238000007599 discharging Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
-
- 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
- B29C45/32—Moulds having several axially spaced mould cavities, i.e. for making several separated articles
-
- 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
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
-
- 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
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
- B29C45/7312—Construction of heating or cooling fluid flow channels
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of key injection molds, including preceding mould framing plate and rear mould framing plate, the preceding mould framing plate includes preceding mould bases and hot runner system, before fixed mold core is fixed on mould bases, mould framing plate is equipped with ejecting mechanism after described, mould bases afterwards, and mavable module core is set on rear mould bases, molding cavity is formed between the fixed mold core and mavable module core, it is characterized by: the hot runner system includes the charging port connecting with injection molding machine, the hot runner manifold being connect with charging port, several hot nozzles that heating coil around hot runner manifold is set and is connected to molding cavity；The ejecting mechanism includes product ejecting mechanism and material ejecting mechanism；Injection mold further includes the cover half water route being arranged on fixed mold core and the dynamic model water route being arranged on mavable module core, and the dynamic model water route uses single cycle pipeline, and the cover half water route uses Two-way Cycle pipeline.Have the advantages that molding is fast, waste material than it is low, without substandard product.
Description
Technical field
The present invention relates to injection mold fields, and in particular to a kind of key injection mold.
Background technique
It is molded production process, in order to improve the efficiency of injection molding, as far as possible more carry out typesettings in a mold, so that once
More products are formed, but product arrangement is excessive, in order to guarantee the quality of injecting products, the requirement to injection molding machine is got higher, together
When waste material it is relatively high.Fig. 1 is the arrangement in the mold for produce this key, and primary die sinking obtains 8 sets of products, using the shunting of X-type
The secondary runner and cold flow of road and X-type are to injection molding, although the time of single injection-molded is very fast, expect shared weight
Relatively high, the average 8 obtained product weights that are once molded are 2g, and material is 5g weight, and waste material ratio is 250%, a large amount of wave
Take raw material, in order to improve the efficiency of injection molding, it is necessary to develop new injection mold, expand the product quantity that primary injection molding generates, such as
Fruit still use before injection molding manner, then cold runner system can not adapt to widened molding cavity, if increasing injection molding channel,
It necessarily will increase the ratio of waste material.Hot runner system is to guarantee that the plastics of runner and cast gate keep melting by the method for heating
State, plastic melt is conducive to pressure transmitting in hot runner system, and the pressure loss in runner is smaller, and injection molding can be greatly lowered
Pressure and clamp force, reduce injection and dwell time, are easier to form the large scale modeling of long process in lesser injector
Property, lesser injector may be selected and reduce the expense of injector, enhance the function of injector, improve Shooting Technique.But
It is using hot runner system on the basis of extending the quantity of single injection-molded, the cooling and shaping time can lengthen, and cause entire
Time of injection molding is elongated, while be opened discharging when is easy to pull, and the present invention develops one kind on the basis of above-mentioned
Completely new injection mold, one-pass molding obtains 8 sets of keys, and shortens molding time, greatly improves production efficiency.
Summary of the invention
In view of the above-mentioned problems, having it is an object of the invention to provide a kind of key injection mold and forming fast, waste material than low, nothing
The advantages of substandard product.
The technical proposal adopted by the invention to solve the above technical problems is that: a kind of key injection mold, including preceding mould bases
Bottom plate and rear mould framing plate, the preceding mould framing plate include preceding mould bases and hot runner system, and fixed mold core is fixed at preceding mould
On frame, the rear mould framing plate is equipped with ejecting mechanism, rear mould bases, and mavable module core, the fixed mold core is arranged on rear mould bases
Molding cavity is formed between mavable module core, it is characterised in that: the hot runner system include the charging port being connect with injection molding machine,
If the hot runner manifold being connect with charging port, the heating coil being arranged in around hot runner manifold and being connected to molding cavity xeothermic
Nozzle；The ejecting mechanism includes product ejecting mechanism and material ejecting mechanism, and product ejecting mechanism and material are ejector
The movement interval time of structure is 1~2s；Injection mold further includes the cover half water route being arranged on fixed mold core and is arranged in mavable module core
On dynamic model water route, the dynamic model water route use single cycle pipeline, the cover half water route use Two-way Cycle pipeline.
Further, the molding cavity is symmetrically formed including two groups divides chamber, and each molding divides chamber symmetrical equipped with four groups
Key forming cavity, every group of key forming cavity has the key forming tank of two sets of center symmetric settings, and shares a material handle, every set
Key forming tank passes through two cast gates with material being connected to, and every composing type divides chamber to connect with a hot nozzle.
Further, the ejecting mechanism is arranged between rear mould framing plate and rear mould bases, by ejector retainner plate, ejector retainner plate backplate,
Several mandrils, several thimbles, several mandrils are respectively the first mandril, the second mandril, third mandril, corresponding first mandril
Top be fixedly connected with the first thimble, the lower section of each key is arranged in the first thimble, and is fixedly connected at the top of the second mandril
The lower section of key connecting cross beam is arranged in two thimbles, the second thimble, and third thimble, third top are fixedly connected at the top of third thimble
The lower section of material handle is arranged in needle, and first jack end is T-type, and the second jack end is L-type, is arranged in ejector retainner plate,
And it is contacted with the upper surface of ejector retainner plate backplate, the end of the third mandril is T-type, thimble corresponding with third mandril position
Plate backplate is equipped with the hanging chamber of mandril, and the hanging chamber of mandril is T-type cavity, and built-in movable mandril helps bar, and the mandril helps
One end of bar is contacted with the end of third mandril, and the other end is pierced by ejector retainner plate backplate, with rear mould bases contacts baseplate；First mandril,
Second mandril, the first thimble, the second thimble constitute product ejecting mechanism, and third mandril, third thimble, mandril help bar to constitute material handle
Ejecting mechanism.
When molding state, the first mandril, the second mandril, third mandril are in a horizontal position, and in product ejecting mechanism
One mandril, the second mandril are contacted with ejector retainner plate backplate, and third mandril helps bar to contact with mandril, and mandril helps the other end and rear mold of bar
Frame contacts baseplate；When starting die sinking, ejector retainner plate moves upwards under the drive of thimble backplate, and ejector retainner plate drives the first top at this time
Bar, the second mandril move upwards, and the first mandril, the first thimble of the second mandril connection and the second thimble are by key and by key connection
Crossbeam ejects upwards, and hanging below third mandril, when ejector retainner plate and thimble backplate move upwards, the top of third mandril
By the pressure of material handle, it is vacantly intracavitary that end falls into mandril, does not move upwards therewith, and mandril helps bar also fortune upwards therewith
Dynamic, so that product and material are disconnected separating, this stage is that product ejecting mechanism works, by the stage of product ejection；With thimble
Plate and thimble backplate continue up, and mandril helps bar to reach the T-type bottom of the hanging chamber of mandril, can not continue to keep not upward
The state of movement, the end of third mandril helps bar to contact with mandril at this time, as ejector retainner plate and thimble backplate continue up,
The material handle of third thimble ejection at this time, completes material the movement of ejecting mechanism.
Further, the mandril helps the tip height of bar lower than the depth at the T-type position of the hanging chamber of mandril, and the two
Difference is 3mm, so that material starts to work ejecting mechanism after product is ejected 3mm by product ejecting mechanism.
Further, each molding divides on chamber and is designed with cover half water route on the fixed mold core, and the cover half water route is followed using double
Endless tube road, including two water route of one water route of symmetrically arranged cover half and cover half, one water route of cover half form a rectangle by pipeline
Circulation line, divide one end of chamber to enter by molding, across the material handle of adjacent key forming cavity, return to molding and divide the identical of chamber
A circulation is completed at end；Recirculated water trend and one water route of cover half in two water route of cover half are symmetrical arranged；It is every on the mavable module core
A molding, which divides on chamber, is designed with dynamic model water route, and the dynamic model water route uses single cycle pipeline, and inlet and outlet setting is dynamic
The side of mode forms rectangle circulation line by pipeline, and the path of recirculated water divides the outer of chamber to flow along molding,
Further, the dynamic model water route further includes two circulation branch roads, and the circulation branch road is parallel to key forming tank and sets
It sets between two groups of key forming cavities.When molding state, dynamic model water route and cover half water route form the key in entire forming cavity
Slot surrounds, so that molding shortening cooling time, improves production efficiency.
Further, the caliber of the circulation branch road is greater than the caliber in dynamic model water route.Since circulation branch road is needed to two sides
Key carries out cooling treatment, so increasing caliber, accelerates cooling, so that sizing speed improves.
Further, the molding divides chamber using I-shaped runner, and the cast gate of the runner and product is two.
Further, the material handle and the direct cast gate of key forming tank are inclined-plane, so that the position of material handle is higher than product
Position, by first ejecting product, is product and material quick separating in ejection.
The present invention has the advantages that
1, the mold ranking that the present invention designs, primary injection molding obtain 16 sets of products, 4 grams of product weight, expect weight 3.5
Gram, and original mold injection, a mould obtain 8 sets of products, 82 grams of product weight, expect 5 grams of weight, be averaged a production in this way
The material handle of product saves 65 percent；
2, the present invention uses hot runner system, and optimizes die waterway, and the period of one mould product of injection molding was by 15 seconds
It is reduced to 13 seconds, while the quantity of a mould is changed to 16 by 8, one day yield is original 2.3 times；
3, gate location residual is big when to solve the problems, such as product ejection and deformation of products, mold use Double-ejection knot
Structure, first ejecting product, then ejection material handle, injection molding machine push ejector retainner plate to move up, the first mandril, the second top on ejector retainner plate
Bar ejecting product, third mandril have a small mandril hanging because following, and power of the head by material handle, third mandril is motionless, in this way
It is achieved that first ejecting product, expects not ejecting, ensure that disconnected clean of gate location does not have residual；Injection molding machine continues to press on
Ejector retainner plate moves up, and the first mandril, the second mandril continue ejecting product, and third mandril is because the mandril of bottom helps bar no longer outstanding
Sky completes entire ejection process with mandrel plate movable top discharging handle.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is that the mold of the prior art ranks schematic diagram.
Fig. 2 is that the mold in the present invention ranks schematic diagram.
Fig. 3 is the hot runner system schematic diagram in the present invention.
Fig. 4 is the schematic diagram in cover half water route of the present invention.
Fig. 5 is the schematic diagram in dynamic model water route of the present invention.
The schematic diagram of ejecting mechanism when Fig. 6 is molding state of the present invention.
Fig. 7 is the partial enlarged view of Fig. 6 of the present invention.
Fig. 8 is schematic diagram when die opening state ejecting mechanism of the present invention ejects 3mm.
Fig. 9 is the partial enlarged view of Fig. 8 of the present invention.
Figure 10 is the schematic diagram that die opening state of the present invention ejects completely.
Figure 11 is the partial enlarged view of Figure 10 of the present invention.
Figure 12 is that present invention injection molding obtains the partial enlarged view of product.
Wherein:
1, charging port 2, hot runner manifold 3, heating coil 4, hot nozzle
5, cover half water route 6, dynamic model water route 7, molding divide chamber 8, key forming cavity
9, key forming tank 10, cast gate 11, material are 12, ejector retainner plate
13, ejector retainner plate backplate 14, the first mandril 15, the second mandril 16, third mandril
17, the first thimble 18, the second thimble 19, third thimble 20, the hanging chamber of mandril
21, mandril helps bar 22, one water route 23 of cover half, two water route 24 of cover half, circulation branch road
25, product 26, mavable module core 27, rear mould bases 28, rear mould framing plate
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
A kind of key injection mold as shown in the figure, including preceding mould framing plate and rear mould framing plate 28, the preceding mould bases
Bottom plate includes preceding mould bases and hot runner system, and before fixed mold core is fixed on mould bases, the rear mould framing plate 28 is equipped with top
Mechanism, rear mould bases 27 out, and mavable module core 26 is set on rear mould bases, it is empty that molding is formed between the fixed mold core and mavable module core 26
Chamber, it is characterised in that: the hot runner system includes the charging port 1 connecting with injection molding machine, the hot-fluid connecting with charging port 1
Guidance tape 2, the heating coil 3 being arranged in around hot runner manifold 2 and several hot nozzles 4 being connected to molding cavity；The ejector
Structure includes product ejecting mechanism and material 11 ejecting mechanisms, and product ejecting mechanism with expect the movement interval 11 ejecting mechanisms
Time is 1~2s；Injection mold further includes the cover half water route 5 being arranged on fixed mold core and the dynamic model water being arranged on mavable module core 26
Road 6, the dynamic model water route 6 use single cycle pipeline, and the cover half water route 5 uses Two-way Cycle pipeline.
Further, the molding cavity is symmetrically formed including two groups divides chamber 7, and each molding divides chamber 7 symmetrical equipped with four groups
Key forming cavity 8, every group of key forming cavity 8 has a key forming tank 9 of two sets of center symmetric settings, and shares a material handle
11, every set key forming tank 9 is connected to material 11 by two cast gates 10, and every composing type divides chamber 7 to connect with a hot nozzle 4.
Further, the ejecting mechanism is arranged between rear mould framing plate 28 and rear mould bases, is protected by ejector retainner plate 12, ejector retainner plate
Plate 13, several mandrils, several thimbles, several mandrils are respectively the first mandril 14, the second mandril 15, third mandril 16, right
The top for the first mandril 14 answered is fixedly connected with the first thimble 17, and the lower section of each key, the second top is arranged in the first thimble 17
The top of bar 15 is fixedly connected with the second thimble 18, and the lower section of key connecting cross beam is arranged in the second thimble 18, third thimble 19
Top is fixedly connected with third thimble 19, and material is arranged in 11 lower section in third thimble 19, and 14 end of the first mandril is T-type,
Second mandril, 15 end is L-type, is arranged in ejector retainner plate 12, and contact with the upper surface of ejector retainner plate backplate 13, described the
The end of three mandrils 16 is T-type, and ejector retainner plate backplate 13 corresponding with 16 position of third mandril is equipped with the hanging chamber 20 of mandril, described
The hanging chamber 20 of mandril is T-type cavity, and built-in movable mandril helps bar 21, and the mandril helps one end of bar 21 and third mandril 16
End contact, the other end are pierced by ejector retainner plate backplate 13, contact with rear mould framing plate 28；First mandril 14, the second mandril 15, first
Thimble 17, the second thimble 18 constitute product ejecting mechanism, and third mandril 16, third thimble 19, mandril help bar 21 to constitute material 11
Ejecting mechanism.
When molding state, the first mandril 14, the second mandril 15, third mandril 16 are in a horizontal position, product ejecting mechanism
In the first mandril 14, the second mandril 15 contacted with ejector retainner plate backplate 13, third mandril 16 helps bar 21 to contact with mandril, and mandril helps
The other end of bar 21 is contacted with rear mould framing plate 28；When starting die sinking, ejector retainner plate 12 is transported upwards under the drive of thimble backplate
Dynamic, ejector retainner plate 12 drives the first mandril 14, the second mandril 15 to move upwards at this time, and the first mandril 14, the second mandril 15 connect
First thimble 17 and the second thimble 18 eject key and key connecting cross beam upwards, and hanging below third mandril 16,
When ejector retainner plate 12 and thimble backplate move upwards, by expecting the pressure 11, it is outstanding that end falls into mandril at the top of third mandril 16
In cavity 20, do not move upwards therewith, mandril helps bar 21 also not move upwards therewith so that product 25 separate with material 11 it is disconnected
It opens, this stage is the work of product ejecting mechanism, by the stage of product ejection；With continuing up for ejector retainner plate 12 and thimble backplate
Movement, mandril help bar 21 to reach the T-type bottom of the hanging chamber 20 of mandril, can not continue to keep the state that is not moved up, and at this time the
The end of three mandrils 16 helps bar 21 to contact with mandril, as ejector retainner plate 12 and thimble backplate continue up, third top at this time
The ejection of needle 19 material completes material the movement of 11 ejecting mechanisms 11.
Further, the mandril helps the tip height of bar 21 lower than the depth at the T-type position of the hanging chamber 20 of mandril, and two
The difference of person is 3mm, so that material starts to work 11 ejecting mechanisms after product is ejected 3mm by product ejecting mechanism.
Further, each molding divides on chamber 7 and is designed with cover half water route 5 on the fixed mold core, and the cover half water route 5 is using double
Circulation line, including two water route 23 of one water route 22 of symmetrically arranged cover half and cover half, one water route 22 of cover half are formed by pipeline
The circulation line of one rectangle divides one end of chamber 7 to enter by molding, and the material across adjacent key forming cavity 8 returns to molding 11
The same side for dividing chamber 7 completes a circulation；The recirculated water trend in two water route 23 of cover half is symmetrically set with one water route 22 of cover half
It sets；Each molding, which divides on chamber 7, on the mavable module core 26 is designed with dynamic model water route 6, and the dynamic model water route 6 uses single cycle pipeline,
The side of mavable module core 26 is arranged in inlet and outlet, forms rectangle circulation line by pipeline, the path of recirculated water along at
Type divides the outer of chamber 7 to flow,
Further, the dynamic model water route 6 further includes two circulation branch roads 24, and the circulation branch road 24 is parallel to key molding
Slot 9 is arranged between two groups of key forming cavities 8.When molding state, dynamic model water route 6 and cover half water route 5 will be in entire forming cavities
Key forming tank 9 is surrounded, so that molding shortening cooling time, improves production efficiency.
Further, the caliber of the circulation branch road 24 is greater than the caliber in dynamic model water route 6.Since circulation branch road 24 is needed to two
The key of side carries out cooling treatment, so increasing caliber, accelerates cooling, so that sizing speed improves.
Further, the molding divides the use of chamber 7 I-shaped runner, and the cast gate 10 of the runner and product is two.
Further, the material is inclined-plane with the direct cast gate 10 of key forming tank 9 11, so that material is higher than 11 position
The position of product, by first ejecting product, is product and material 11 quick separatings in ejection.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (5)
1. a kind of key injection mold, including preceding mould framing plate and rear mould framing plate, the preceding mould framing plate include preceding mould bases
And hot runner system, before fixed mold core is fixed on mould bases, the rear mould framing plate is equipped with ejecting mechanism, rear mould bases, with
And mavable module core is set on rear mould bases, molding cavity is formed between the fixed mold core and mavable module core, it is characterised in that: the hot-fluid
Road system includes the charging port connecting with injection molding machine, the hot runner manifold connecting with charging port, is arranged around hot runner manifold
Heating coil and several hot nozzles for being connected to molding cavity；The ejecting mechanism includes product ejecting mechanism and material ejection
Mechanism, and product ejecting mechanism and material are 1 ~ 2s the movement interval time of ejecting mechanism；Injection mold further includes that setting exists
Cover half water route on fixed mold core and the dynamic model water route being arranged on mavable module core, the dynamic model water route uses single cycle pipeline, described
Cover half water route uses Two-way Cycle pipeline；The molding cavity is symmetrically formed including two groups divides chamber, and each molding divides chamber to be equipped with four
The symmetrical key forming cavity of group, every group of key forming cavity has the key forming tank of two sets of center symmetric settings, and shares one
Expect handle, every set key forming tank passes through two cast gates with material being connected to, and every composing type divides chamber to connect with a hot nozzle；The top
Mechanism is arranged between rear mould framing plate and rear mould bases out, described by ejector retainner plate, ejector retainner plate backplate, several mandrils, several thimbles
Several mandrils are respectively the first mandril, the second mandril, third mandril, are fixedly connected with the first top at the top of corresponding first mandril
The lower section of each key is arranged in needle, the first thimble, and the second thimble is fixedly connected at the top of the second mandril, and the setting of the second thimble exists
The lower section of key connecting cross beam, third thimble is fixedly connected at the top of third thimble, and the lower section of material handle, institute is arranged in third thimble
Stating the first jack end is T-type, and the second jack end is L-type, is arranged in ejector retainner plate, and the upper table with ejector retainner plate backplate
Face contact, the end of the third mandril are T-type, and it is hanging that ejector retainner plate backplate corresponding with third mandril position is equipped with mandril
Chamber, the hanging chamber of mandril are T-type cavity, and built-in movable mandril helps bar, and the mandril helps one end of bar and third mandril
End contact, the other end is pierced by ejector retainner plate backplate, with rear mould bases contacts baseplate；First mandril, the second mandril, the first thimble,
Two thimbles constitute product ejecting mechanism, and third mandril, third thimble, mandril help bar to constitute material ejecting mechanism；The fixed mold core
Upper each molding, which divides on chamber, is designed with cover half water route, and the cover half water route uses Two-way Cycle pipeline, including symmetrically arranged cover half
Two water route of one water route and cover half, one water route of cover half are formed the circulation line of a rectangle by pipeline, divide the one of chamber by molding
End enters, and across the material handle of adjacent key forming cavity, returns to the same side that molding divides chamber, completes a circulation；The cover half two
Recirculated water trend and one water route of cover half in water route are symmetrical arranged；Each molding, which divides on chamber, on the mavable module core is designed with dynamic model water
Road, the dynamic model water route use single cycle pipeline, and inlet and outlet are arranged in the side of mavable module core, form rectangle by pipeline
The path of circulation line, recirculated water divides the outer of chamber to flow along molding；The material handle is with the direct cast gate of key forming tank
Inclined-plane, so that position of the position of material handle higher than product, by first ejecting product, makes product and material quick point in ejection
From.
2. a kind of key injection mold according to claim 1, it is characterised in that: the mandril helps the tip height of bar low
Depth in the T-type position of the hanging chamber of mandril, and the difference of the two is 3mm, so that product is ejected 3mm by product ejecting mechanism
Afterwards, material starts to work ejecting mechanism.
3. a kind of key injection mold according to claim 1, it is characterised in that: the dynamic model water route further includes two and follows
Ring branch, the circulation branch road are parallel to key forming tank and are arranged between two groups of key forming cavities.
4. a kind of key injection mold according to claim 3, it is characterised in that: the caliber of the circulation branch road is greater than dynamic
The caliber in mould water route.
5. a kind of key injection mold according to claim 1, it is characterised in that: the molding divides chamber using I-shaped point
The cast gate of runner, the runner and product is two.
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| CN107322886B (en) * | 2017-08-25 | 2023-06-30 | 珠海市春生五金工业有限公司 | Plastic part with power blocking part, mold and mold changing method |
| CN107756742A (en) * | 2017-11-15 | 2018-03-06 | 广东瑞捷光电股份有限公司 | Flashing lamp lens process units |
| CN111231232A (en) * | 2018-11-28 | 2020-06-05 | 南京华格电汽塑业有限公司 | Injection mold for automatic production of 64-hole rivets |
| CN109501157A (en) * | 2019-01-07 | 2019-03-22 | 深圳市精而美科技有限公司 | A kind of side switch injection moulding apparatus and method |
| CN112428494A (en) * | 2020-11-27 | 2021-03-02 | 深圳市超月盛塑胶五金制品有限公司 | Plastic injection mold with efficient heat dissipation function |
| CN113103528B (en) * | 2021-04-06 | 2023-06-23 | 青岛海尔空调器有限总公司 | Material cake separator, material cake separation composite set and injection molding reclaiming device |
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