CN104228001B - Injection mold - Google Patents
Injection mold Download PDFInfo
- Publication number
- CN104228001B CN104228001B CN201410515185.XA CN201410515185A CN104228001B CN 104228001 B CN104228001 B CN 104228001B CN 201410515185 A CN201410515185 A CN 201410515185A CN 104228001 B CN104228001 B CN 104228001B
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- China
- Prior art keywords
- ejection
- pushing block
- component
- thimble board
- push rod
- 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.)
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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
- B29C45/40—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
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
- B29C45/401—Ejector pin constructions or mountings
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of injection mold, including moving platen and secondary ejecting mechanism, secondary ejecting mechanism includes thimble board component, ejection driving means, the first ejection assembly, the second ejection assembly and pushing block component；Pushing block component and thimble board component are arranged on the relative both sides of moving platen；First ejection assembly connects thimble board component and pushing block component；Second ejection assembly is fixed on thimble board component and is actively plugged in pushing block component；The junction of ejection driving means, the first ejection assembly and the second ejection assembly and thimble board component is spaced, ejection driving means drive thimble board component, thimble board component is used for link the first ejection assembly and the second ejection assembly, first ejection assembly is used to promote pushing block component to the first ejection position to make pushing block component be maintained at the first ejection position, second ejection assembly with pushing block components apart and continues to move the second ejection position when pushing block component reaches the first ejection position.The secondary ejecting mechanism simple structure, ejection cycle are short.
Description
Technical field
The present invention relates to injection mold technical field, more particularly to a kind of injection mold with secondary ejecting mechanism.
Background technology
Injection mold can be divided into according to general function：Formation system, running gate system, gas extraction system, cooling system and top
Go out system etc..Wherein, ejection system has very important effect in injection mould, and ejection system may decide that the system of injection mold
The height (product whether there is deformation, surface quality quality) and formed product length cycle time of the qualification rate of product after part molding.
For some appearances require the product of the stricter and deep position of bone, injection mold needs to adopt secondary ejecting mechanism
Product could smoothly be ejected, however, existing secondary ejecting mechanism generally includes thimble board component, pushing block component, the first top
Go out driving means and the second ejection driving means.First ejection driving means are connected with pushing block component, for driving pushing block group
Part completes ejection for the first time.Second ejection driving means are connected with thimble board component, for driving thimble board component to complete second
Secondary ejection, and make product stripping.The secondary ejecting mechanism needs to connect the first top respectively on pushing block component and thimble board component
Go out driving means and the second ejection driving means, cause ejection driving means quantity many, ejecting structure complexity, in addition, the first top
After going out driving means driving ejection, the second ejection driving means just drive ejection, ejection action to have sequencing, error easy to operate
And cause injection mold to damage, and the Double-ejection time is longer, extends the injection cycle of single product.
The above is only used for auxiliary and understands technical scheme, does not represent and recognizes that the above is existing skill
Art.
The content of the invention
Present invention is primarily targeted at the secondary ejecting mechanism for solving existing injection mold is driven using the first ejection
Device and the second ejection driving means be respectively completed for the first time ejection and eject for the second time the ejection driving means quantity for causing it is many,
The technical problem of ejecting structure complexity and Double-ejection time length.
For achieving the above object, the present invention provides a kind of injection mold, the injection mold include solid plate, moving platen with
And secondary ejecting mechanism, the secondary ejecting mechanism include thimble board component, ejection driving means, some first ejection assemblies,
Some second ejection assemblies and pushing block component；Wherein, the pushing block component is arranged on the moving platen towards the solid plate
Side；The thimble board component is arranged on opposite side of the moving platen away from the solid plate；First ejection assembly
Through the moving platen and connect the thimble board component and pushing block component, and relative to moving platen activity；Described second
Ejection assembly passes through the moving platen and is fixed on the thimble board component, and is actively plugged on the pushing block component；Institute
State ejection driving means and connect the thimble board component, the ejection driving means, the first ejection assembly and the second ejection group
The junction that part connects the thimble board component is spaced, and the ejection driving means are used to drive the thimble board component to exist
Activity in the moving platen, the thimble board component are used to link first ejection assembly and the second ejection assembly, and described the
One ejection assembly is used to promoting pushing block component activity to the first ejection position, make the pushing block component be maintained at described the
One ejection position, second ejection assembly are divided with pushing block component when the pushing block component reaches first ejection position
From simultaneously continuation activity to the second ejection position；The injection mold also includes deviating from the one of the solid plate located at the moving platen
The lower code mask of side；First ejection assembly includes guide, driving member and ejection piece；The guide is in the form of a column and sets
Put, its one end is fixed in the lower code mask, the other end passes through the thimble board component；The driving member is located at the thimble
In board component, and enclose the set guide；One end of the ejection piece is connected with the pushing block component, and the other end entangles described leading
To the other end of part, and the ejection piece is against the driving member, and the ejection piece is used for pushing up under the driving of the driving member
Go out the pushing block component to first ejection position, the ejection piece is separated with the driving member and makes the driving member top
Unprecedentedly enter and the ejection piece is positioned between the driving member and the guide.
Preferably, the guide includes guide rod, and one end of the guide rod is fixed in the lower code mask, and the other end is passed through
Wear the driving member；The driving member includes the sleeve being fixed in the thimble board component, and the sleeve encloses the set guide rod
And there is first end, the first end is less than side of the thimble board component towards the solid plate；The ejection piece
Including push rod and some sliding shoes on the push rod, the push rod is cylindrical, and one end of the push rod is fixed
On the pushing block component, the other end of the push rod encloses the other end that covers the guide rod and is located at the sleeve and the guide rod
Between, some sliding shoes stretch out the outer surface circle distribution of the bar wall of the push rod in the bar wall of the push rod, and
Radially movable relative to the bar wall of the push rod, the sliding shoe is resisted against on the first end of the sleeve and leads described in contacting
The surface of bar, the sliding shoe be used for linking under the driving of the sleeve push rod eject the pushing block component to described the
After one ejection position, the sliding shoe separated by the radially movable first end with the sleeve and be positioned at the sleeve with
Between the guide rod.
Preferably, the ejection piece also includes some pins；There are on the bar wall of the push rod some through holes and some
Pin hole, on the bar wall of the push rod, the pin hole extends some through hole circle distributions from the bottom of the through hole
To the other end of the push rod, the sliding shoe has a sliding groove, during the sliding shoe is arranged on the through hole and the slip
The side that block has the sliding groove is connected with the bottom of the through hole, and the pin is described from the other end insertion of the push rod
Pin hole is interior and stretches in the sliding groove of the sliding shoe, and described in driving lower edge of the sliding shoe in the sleeve, pin is from institute
The one end for stating sliding groove moves to the other end, and radially-inwardly movable in the through hole.
Preferably, the guide rod includes first body of rod, second body of rod and connects first body of rod and second body of rod
Rotary-table, the diameter with diameter greater than second body of rod of first body of rod, second body of rod and Rotary-table are located at institute
State in push rod, the Rotary-table has the first inclined-plane；The sleeve also includes the second end relative with the first end, institute
First end is stated with the second inclined-plane, second inclined-plane is from the end slope of the first end inwardly and towards described second
End extends to be formed；There is the sliding shoe side of sliding groove to have the 3rd inclined-plane and the 4th inclined-plane, the 3rd inclined-plane with
Second inclined-plane is parallel, and the 4th inclined-plane is parallel with first inclined-plane, and the relative opposite side of the sliding shoe is located at
The junction of first inclined-plane and first body of rod；Described in second slope driving of the sleeve, the 3rd of sliding shoe the is oblique
Face, the sliding shoe are linked the push rod radially-inwardly activity makes the 4th inclined-plane of the sliding shoe along described along the through hole
First inclined-plane of guide rod slides, until second inclined-plane is separated with the 3rd inclined-plane, the sliding shoe slips into the through hole
It is interior and be positioned between second body of rod and the inner surface of the sleeve.
Preferably, second ejection assembly includes push rod and jacking block, and the jacking block is movably arranged on the pushing block group
In part, one end of the push rod is fixed in the thimble board component, and the other end is consolidated through the moving platen and pushing block component
It is scheduled on the jacking block；When the pushing block component is located at first ejection position, push rod described in the ejector retainner plate Component driver,
The push rod promotes the jacking block, and the jacking block and the pushing block components apart and activity are to second ejection position.
Preferably, the thimble board component is hollow frame structure, and the thimble board component includes two the first ejector retainner plates
With two the second ejector retainner plates, described two first ejector retainner plates interval is arranged side by side, and described two second ejector retainner plates are located at described two
Between individual first ejector retainner plate and interval is arranged side by side, and the two ends of each first ejector retainner plate have ejector retainner plate connecting portion, each
The ejector retainner plate connecting portion connects the ejection driving means respectively.
Preferably, the pushing block component is hollow frame structure, and the pushing block component includes two the first pushing blocks and two
Second pushing block, described two first pushing blocks interval are arranged side by side, described two second pushing blocks be located at described two first pushing blocks it
Between and interval be arranged side by side.
Preferably, the secondary ejecting mechanism also includes being oriented to link gear, and the guiding link gear includes that pushing block is multiple
Position link gear, the pushing block reset link gear include pushing block release link, pushing block release link briquetting and pushing block release link edge
Part, one end of the pushing block release link are fixed in the thimble board component by the pushing block release link briquetting, and the other end is passed through
Wear the moving platen and be arranged in the pushing block component by the pushing block release link mold insert.
Preferably, the secondary ejecting mechanism also includes pushing block locating part, and the pushing block locating part is arranged on the dynamic model
Plate towards on the side of the solid plate, for limiting the stroke of the pushing block component.
Driving means connection thimble board component, thimble board component are ejected in the secondary ejecting mechanism of the injection mold of the present invention
The first ejection assembly and the second ejection assembly is driven to advance, wherein, the first ejection assembly promotes the activity of pushing block component to the first top
After out position, make pushing block component be maintained at the first ejection position, and the second ejection assembly continues under the driving of thimble board component
Activity completes Double-ejection, makes the smooth demoulding of product to the second ejection position, wherein, the secondary ejecting mechanism is only needed on top
Connection ejection driving means on needle plate component, without the need for the connection ejection driving means on pushing block component, save ejection and drive dress
Put, simplify ejecting structure, and eject driving means and eject simultaneously, without priority sequence of movement, it is to avoid operational error and cause mould
Tool is damaged, and is reduced the Double-ejection time, is shortened the injection cycle of single product, improves injection molding efficiency.
Description of the drawings
Fig. 1 is the structural representation of the secondary ejecting mechanism of an embodiment of injection mold of the present invention；
Fig. 2 is arranged on the structural representation on moving platen for the oil cylinder of the secondary ejecting mechanism in Fig. 1；
Schematic diagrams of the Fig. 3 for the guiding link gear of the secondary ejecting mechanism in Fig. 1；
Schematic diagrams of the Fig. 4 for the secondary ejecting mechanism in Fig. 1 in the state that do not eject；
Schematic diagrams of the Fig. 5 for the secondary ejecting mechanism in Fig. 1 in the first ejection position state；
Schematic diagrams of the Fig. 6 for the secondary ejecting mechanism in Fig. 1 in the second ejection position state；
Fig. 7 resets to the schematic diagram of the first ejection position state after completing Double-ejection for the secondary ejecting mechanism in Fig. 1；
Fig. 8 resets to the schematic diagram of the state of ejection after completing Double-ejection for the secondary ejecting mechanism in Fig. 1；
Schematic diagrams of the Fig. 9 for the subelement of the first ejection assembly of the secondary ejecting mechanism in Fig. 4；
Partial enlarged drawings of the Figure 10 for the a-quadrant in Fig. 9；
Front views of the Figure 11 for the sleeve in Fig. 9；
Structural representations of the Figure 12 for the guide rod in Fig. 9；
Structural representations of the Figure 13 for the push rod in Fig. 9；
Front views of the Figure 14 for the push rod of Figure 13；
Upward views of the Figure 15 for the push rod of Figure 13；
Figure 16 be Figure 14 in push rod along line B-B sectional view；
Figure 17 be Figure 14 in push rod along line C-C sectional view；
Top views of the Figure 18 for the sliding shoe in Fig. 9；
Figure 19 be Figure 18 in sliding shoe along line D-D sectional view；
Structural representations of the Figure 20 for the sliding shoe in Figure 18.
The realization of the object of the invention, functional characteristics and advantage will be described further in conjunction with the embodiments referring to the drawings.
Specific embodiment
It should be appreciated that specific embodiment described herein is not intended to limit the present invention only to explain the present invention.
The present invention provides a kind of injection mold, with reference to Fig. 1 and Fig. 2, and combines Fig. 4, in one embodiment, injection mold bag
Include solid plate (not shown), moving platen 10, secondary ejecting mechanism 100, hot flow path backing plate 12, hot runner manifold 14 and lower code mask
16, wherein, solid plate, moving platen 10, hot flow path backing plate 12, hot runner manifold 14 and lower code mask 16 press top-down direction
Stack gradually together, secondary ejecting mechanism 100 is located between solid plate and hot flow path backing plate 12 and is arranged in moving platen 10.
It is understood that the injection mold of offer of the present invention also includes other elements, to meet production particular plastic product
Require, for example, cover half fixed plate, dynamic mould fixing plate, core etc., and these parts are ripe for those skilled in the art
Know, therefore not to repeat here.
The secondary ejecting mechanism 100 is arranged for the more special plastic part of some structures, and for example appearance will
Ask comparison strict and the deep position of bone product, can prevent during demoulding ejecting mechanism damage plastic part, smoothly realize two
Secondary ejection device, it is ensured that the quality of plastic part.
The present embodiment is illustrated so that the secondary ejecting mechanism 100 is applied to the surface frame 1 of production panel TV set as an example, this
Outward, it will be apparent to those skilled in the art that with reference to the description below, can realize easily based on invention thought of the invention and to this
The dependency structure of secondary ejecting mechanism 100 carries out adaptive conversion, to be applied to produce armarium and other household appliances
The associated plastic part of (computer, washing machine, refrigerator etc.), therefore not to repeat here.
With reference to Fig. 1, Fig. 2 and Fig. 4, in the present embodiment, the secondary ejecting mechanism 100 includes that thimble board component 4, ejection drive
Dynamic device 8, some first ejection assemblies 2, some second ejection assemblies 3 and pushing block component 6.Thimble board component 4 and pushing block group
Part 6 is separately positioned on the opposite sides of moving platen 10, i.e. thimble board component 4 and is arranged on moving platen 10 and is connected with hot flow path backing plate 12
Side, pushing block component 6 is arranged on the side that moving platen 10 is connected with solid plate.First ejection assembly 2 through hot runner manifold 14,
Hot flow path backing plate 12, thimble board component 4 and moving platen 10 simultaneously connect lower code mask 16, thimble board component 4 and pushing block component 6,
Specifically, one end of the first ejection assembly 2 is fixed in lower code mask 16, and the other end is fixed on pushing block component 6, but first
Ejection assembly 2 is moving jointing component, and which is movable relative to moving platen 10.Second ejection assembly 3 passes through moving platen 10 and fixes
On thimble board component 4, and it is actively plugged on pushing block component 6, i.e. one end of the second ejection assembly 3 is fixed on thimble board component
On 4, the other end is actively plugged on pushing block component 6.Ejection driving means 8 are fixed on moving platen 10 and connect thimble board component
4, the junction for ejecting driving means 8, the first ejection assembly 2 and the second ejection assembly 3 connection thimble board component 4 is mutual
Every.Ejection driving means 8 are used to drive thimble board component 4 movable in moving platen 10, and thimble board component 4 is used for linkage first and pushes up
Go out component 2 and the second ejection assembly 3, the first ejection assembly 2 is used to promote 6 activity of pushing block component institute to be made to the first ejection position
State pushing block component 6 and be maintained at the first ejection position, the second ejection assembly 3 reaches the first ejection position in the pushing block component 6
When putting, activity is separated and is continued with pushing block component 6 to the second ejection position, the second ejection position is product stripping position, so as to
Double-ejection is completed, the smooth demoulding of product is made.
The secondary ejecting mechanism 100 is only in the connection ejection driving means 8 of thimble board component 4, and then drive connection is in thimble
The first ejection assembly 2 and the second ejection assembly 3 on board component 4, the first ejection assembly 2 and the second ejection assembly 3 advance simultaneously,
After the first ejection assembly 2 promotes 6 the first ejection position of arrival of pushing block component to complete ejection for the first time, the first ejection assembly 2 exists
Do not promote pushing block component 6 to move under the driving of thimble board component 4, and then make pushing block component 6 be maintained at the first ejection position,
And the second ejection assembly 3 is separated with pushing block component 6 under the driving of thimble board component 4 and advances to the second ejection position,
Second ejection is completed, product stripping is realized.The secondary ejecting mechanism 100 connects ejection only on thimble board component 4 and drives dress
Double-ejection is completed by putting 8, is connected on thimble board component and pushing block component respectively compared to existing secondary ejecting mechanism
Ejection driving means, are ejected with being respectively completed ejection for the first time and second, present invention saves ejection driving means, simplify
The overall structure of secondary ejecting mechanism 100, reduces the integral thickness of injection mold, and ejects the ejection simultaneously of driving means 8, nothing
Priority sequence of movement, it is to avoid operational error and cause burn failure, reduce the Double-ejection time, shorten the note of single product
In the modeling cycle, improve injection molding efficiency.
With reference to Fig. 4 to Fig. 9, in the present embodiment, the first ejection assembly 2 includes guide 20 ', driving member 22 ' and top
Go out part 24.Guide 20 ' is in the form of a column setting, and its one end is fixed in lower code mask 16, and the other end runs through hot runner manifold 14, hot-fluid
Road backing plate 12 and thimble board component 4 and stretch in moving platen 10.During driving member 22 ' is fixed on thimble board component 4 and encloses set and lead
To part 20 '.One end of ejection piece 24 is connected with pushing block component 6, and the other end entangles the other end of guide 20 ', and ejection piece 24
Against driving member 22 '.The linkage driving member 22 ' of thimble board component 4, driving member 22 ' are being passed for driving ejection piece 24, ejection piece 24
After being used for ejecting 6 to the first ejection position of pushing block component under the driving of moving part 22 ', ejection piece 24 is separated with driving member 22 ' and makes biography
22 ' head space of moving part advances, and ejection piece 24 is positioned between driving member 22 ' and guide 20 '.
The ejection piece 24 is separated with driving member 22 ' after 6 to the first ejection position of ejection pushing block component, makes driving member 22 '
Head space advances along ejection piece 24, and then driving member 22 ' cannot drive ejection piece 24 to move on, and pushing block component 6 is by being positioned at
Ejection piece 24 between driving member 22 ' and guide 20 ' and be maintained at the first ejection position, at the same time, the second ejection assembly 3
The second ejection position is advanced in 6 activity to the first ejection position of pushing block component, second ejection is completed, is realized product
The demoulding.Due to the unique design of ejection piece 24 so that thimble board component 4 can drive the first ejection assembly 2 and the second top simultaneously
Go out component 3, therefore it may only be necessary to the connection ejection driving means 8 on thimble board component 4, you can realize Double-ejection, reduce top
Go out the use of driving means 8, simplify ejecting structure, reduce the thickness of template, shorten ejection cycle, improve ejection effect
Rate.
With reference to Fig. 4 and Fig. 5 and combine Figure 11, specifically, the driving member 22 ' including sleeve 22, sleeve briquetting 21 and
Screw (unmarked), the sleeve 22 have relative first end 222 and the second end 224, the second end 224 of sleeve 22
The convex portion 226 to be formed with extending radially outwardly, thimble board component 4 is with the stepped hole with 22 shape adaptation of sleeve, sleeve 22
It is placed in the stepped hole of thimble board component 4, wherein, convex portion 226 is coordinated with the step in stepped hole, and the second end of sleeve 22
224 concordant thimble board component 4 of portion connects the side of hot flow path backing plate 12, and the first end 222 of sleeve 22 is slightly below ejector retainner plate group
Part 4 connects the opposite side of moving platen 10, and sleeve briquetting 21 props up the second end 224 of sleeve 22 and passes through screw by sleeve briquetting
21 are fixed on the thimble board component 4, and then the second end 224 of fixes sleeve 22 is in thimble board component 4.Sleeve 22
First end 222 has the second inclined-plane 220, end slope inside simultaneously court of second inclined-plane 220 from the first end 222 of sleeve 22
Extend to the second end 224 of sleeve 22 and formed.
With reference to Fig. 4 and Fig. 5 and combine Figure 12, specifically, the guide 20 ' including guide rod 20, guide rod briquetting 28 and
Screw (unmarked), one end of guide rod 20 are located in lower code mask 16, the other end through hot runner manifold 14, hot flow path backing plate 12,
Sleeve 22 and stretch in moving platen 10, guide rod 20 include first body of rod 202, second body of rod 204 and first body of rod 202 of connection with
The Rotary-table 206 of second body of rod 204, wherein, first body of rod 202 with diameter greater than second body of rod 204, the one of first body of rod 202
End is fixed in lower code mask 16 and through hot runner manifold 14, hot flow path backing plate 12 and sleeve by guide rod briquetting 28 and screw
22, second body of rod 204 stretches out thimble board component 4 with Rotary-table 206 and is located in moving platen 10, wherein, Rotary-table 206 is with the
One inclined-plane 200.
With reference to Fig. 9 and Figure 10 and with reference to Figure 13 to Figure 20, specifically, ejection piece 24 includes push rod 27, some sliding shoes 25
And some pins 23.Push rod 27 is cylindrical, and one end of push rod 27 is fixed on pushing block component 6, and the other end encloses set guide rod 20
Second body of rod 204 and Rotary-table 206.Push rod 27 has some through holes 272 and some pin holes 274, and some through holes 272 are justified
It is distributed in week on the bar wall 270 of push rod 27, pin hole 274 extends to the other end of the push rod 27 from the bottom of through hole 272, such as
Shown in Figure 13, in the present embodiment, the quantity of some through holes 272 is six, and correspondingly, the quantity of some pin holes 274 is
Six.Sliding shoe 25 has sliding groove 250, and sliding shoe 25 stretches out the outer surface of the bar wall 270 of push rod 27 and is installed on through hole 272
The side that interior and sliding shoe 25 has sliding groove 250 is connected with the bottom of through hole 272, and pin 23 is inserted from the other end of push rod 27
In pin hole 274, one end of pin 23 is stretched in through hole 272 and is inserted in sliding groove 250, and the other end of pin 23 is by welding
The other end of push rod 27 is fixed on, sliding shoe 25 slides into sliding groove 250 another from one end of sliding groove 250 along pin 23
End, so it is radially movable in through hole 272, and the sliding shoe 25 has the 3rd inclined-plane 252 and the 4th inclined-plane 254, the 3rd inclined-plane
252 parallel to the second inclined-plane 220, the 4th inclined-plane 254 parallel to the first inclined-plane 200, as shown in FIG. 19 and 20.
With reference to Fig. 9 and Figure 10, in the present embodiment, first body of rod 202 of guide rod 20 runs through sleeve 22 and partly stretches out set
The first end 222 of cylinder 22, the Rotary-table 206 of guide rod 20 and second body of rod 204 stretch out the first end 222 of sleeve 22, set
Space is formed between cylinder 22 and first body of rod 202, the other end of push rod 27 encloses second body of rod 204 of set and Rotary-table 206 and stretches into
In space, it is engaged with the outer surface of the inner surface and push rod 27 of sleeve 22, the 3rd inclined-plane 252 of sliding shoe 25 is resisted against set
On second inclined-plane 220 of the first end 222 of cylinder 22, sliding shoe 25 is engaged with the surface of first body of rod 202, and sliding shoe
The opposite side of 25 relative sliding grooves 250 is located at the junction of the first inclined-plane 200 and first body of rod 202.Second inclined-plane of sleeve 22
220 the 3rd inclined-planes 252 for promoting sliding shoes 25, the linkage push rod 27 radially-inwardly activity makes slip along through hole 272 of sliding shoe 25
4th inclined-plane 254 of block 25 slides along the first inclined-plane 200 of guide rod 20, until the second inclined-plane 220 is separated with the 3rd inclined-plane 252,
Sliding shoe 25 is slipped in through hole 272 and is positioned between second body of rod 204 and the inner surface of sleeve 22.
The sliding shoe 25 of the ejection piece 24 is radially movable in through hole 272, and makes push rod 27 eject pushing block component 6 upwards
Meanwhile, sliding shoe 25 is slipped into causes 22 head space of sleeve in through hole 272, and sliding shoe 25 is housed and is positioned at second body of rod 204 and set
Do not slide between the inner surface of cylinder 22, so that pushing block component 6 is maintained at the first ejection position.
With reference to Fig. 4, in the present embodiment, the second ejection assembly 3 include push rod 30, jacking block 34, screw (unmarked) and
The push rod guide pin bushing 32 being set on push rod 30, one end of push rod 30 are fixed by screws in thimble board component 4, push rod 30 it is another
One end is fixedly connected with jacking block 34 by screw, wherein, jacking block 34 is movable to be installed in pushing block component 6, and push rod guide pin bushing 32 is solid
It is scheduled on moving platen 10, the push rod guide pin bushing 32 makes push rod 30 along the axially activity of its guide hole, and anti-throw-out lever 30 is stuck and guarantee is ejected
Be smoothed out.When 6 activity to the first ejection position of pushing block component, i.e., when jacking block 34 also is located at the first ejection position, push rod
30 promote jacking block 34 to leave pushing block component 6 and activity completes secondary top to the second ejection position under the driving of thimble board component 4
Go out, by product ejection device.Second ejection assembly 3 is arranged around surface frame 1, and particular number is decided according to the actual requirements, as long as full
Surface frame 1 is ejected from pushing block component 6 by foot.Second ejection assembly 3 is under the driving of thimble board component 4 towards ejection system
The direction movement of part, before pushing block component 6 does not reach the first ejection position, which preserves geo-stationary with the first ejection assembly 2, when
When pushing block component 6 reaches the first ejection position, its jacking block 34 is separated with pushing block component 6 and advances to the second ejection position.
With reference to Fig. 1 and Fig. 2, pushing block component 6 is hollow frame structure, for example, in the present embodiment, surface frame 1 is hollow
Rectangular box, therefore pushing block component 6 is rectangular frame structure, to meet the production requirement of surface frame 1, certainly, pushing block component 6
Can also be in other any suitable shapes, to meet actual production requirement, therefore not to repeat here.Pushing block component 6 includes two
First the second pushing block 62 of pushing block 60, two and pushing block locating part 64.First pushing block 60 and the second pushing block 62 are substantially in cuboid
Shape, and processed by applicable metal material (for example, mould steel), two intervals of the first pushing block 60 are arranged side by side, and this two
Individual second pushing block 62 is located between two the first pushing blocks 60 and interval is arranged side by side, and the two ends of each the second pushing block 62 are respectively with two
Individual first pushing block, 60 detachable connection, so as to surround the frame structure similar to the shape of surface frame 1.Specifically, each first pushes away
The position being connected with the second pushing block 62 on block 60 is provided with two tongue-and-grooves, and the two ends of each the second pushing block 62 are respectively formed with and this
The tenon of tongue-and-groove adaptation, in a better embodiment, tongue-and-groove is the square breach of the seamed edge for being opened in the first pushing block 60, second
The tenon of pushing block 62 is completely embedded in the tongue-and-groove of the first pushing block 60 just, and tenon is locked at corresponding tongue-and-groove by screw
In, it is connected so as to the first pushing block 60 and the second pushing block 62 are fixed.Additionally, in order that the first pushing block 60 and the second pushing block 62
Between connection it is more firm, and positioning precision is higher, and the junction of the first pushing block 60 and the second pushing block 62 is additionally provided with holding pin
Nail, it follows that by 6 simple structure of pushing block component being spliced, secure and reliable connection is easy to process, and its weight is compared
Greatly reduce in existing monoblock type push pedal, so as to reduce the ejecting force of secondary ejecting mechanism 100 so that secondary ejecting mechanism
100 kinetic stability strengthens, it is ensured that the quality of shaped article.Pushing block locating part 64 is arranged on moving platen 10 towards solid plate
On side, in a better embodiment, pushing block locating part 64 is the block in half frame shape, and two of pushing block locating part 64 convex
Go out end to be fastened on moving platen 10 by screw, for limiting the stroke of the pushing block component 6, anti-thrust block component 6 exceeds pole
Extreme position and damage other parts.
With reference to Fig. 1 and Fig. 2, in the present embodiment, thimble board component 4 is hollow frame structure, is the production for meeting surface frame 1
Require, therefore thimble board component 4 is provided accordingly to rectangular frame structure, certainly, thimble board component 4 can also be in other
Any suitable shape, to meet actual production requirement, therefore not to repeat here.Thimble board component 4 includes two the first ejector retainner plates
40 and two the second ejector retainner plates 42, the first ejector retainner plate 40 and the second ejector retainner plate 42 are in substantially rectangular-shape, and by applicable metal
Material (for example, mould steel) is processed.Two first ejector retainner plates 40 interval is arranged side by side, this two the second ejector retainner plates 42
Between two the first ejector retainner plates 40 and interval is arranged side by side, the two ends of each the second ejector retainner plate 42 respectively with two the first thimbles
40 detachable connection of plate, so as to surround the frame structure similar to the shape of surface frame 1.The two ends of each the first ejector retainner plate 40 have
Ejector retainner plate connecting portion 400, each ejector retainner plate connecting portion 400 connect an ejection driving means 8 respectively, that is, eject driving means 8
It is arranged in four corners of thimble board component 4.In a better embodiment, between the first ejector retainner plate 40 and the second ejector retainner plate 42
It is solidly fixed by joggle, and is securely locked by screw and pin for suppressing metal, therefore not to repeat here.It follows that passing through
4 simple structure of thimble board component being spliced, attachment structure are solid and reliable, and easy to process, its weight is whole compared to existing
Top of the plate needle plate is greatly reduced, so as to reduce the ejecting force of secondary ejecting mechanism 100 so that the motion of secondary ejecting mechanism 100
Stability strengthens, it is ensured that the quality of shaped article.
In the present embodiment, the quantity of the first ejection assembly 2 is 4, is connected to the first pushing block 60 and stretches out the second pushing block
On 62 part, correspondingly, it is also respectively connected with the part that the second ejector retainner plate 42 is stretched out in the first ejector retainner plate 40.In addition, the second top
Go out component 3 be connected to the first pushing block 60 be connected with the second pushing block 62 formed framework in, correspondingly, be also fixed on the first ejector retainner plate
40 are connected with the second ejector retainner plate 42 in the framework for being formed, and the second ejection assembly 3 on per one first pushing block 60 is 5,
The second ejection assembly 3 on per one second pushing block 62 is 6.
In the present embodiment, the quantity for ejecting driving means 8 is four, and this four ejection driving means 8 correspond to top respectively
Needle plate connecting portion 400 and be arranged on moving platen 10, and be fixed on moving platen 10 by fixing screws 84, eject driving means
8 are preferably oil cylinder, and certainly, in other embodiments of the invention, ejection driving means 8 can also be cylinder.It is preferably real one
Apply in mode, eject the relevant position that driving means 8 are fixed on moving platen 10, ejector retainner plate connecting portion 400 is the opening for taking the shape of the letter U,
Annular groove is formed with the ejection connecting portion 80 of ejection driving means 8, by the annular groove part by connecting portion 80 is ejected
The connection between ejection driving means 8 and ejector retainner plate connecting portion 400 is realized in snapping in the opening for taking the shape of the letter U.The secondary ejecting mechanism
100 only connect four oil cylinders on thimble board component 4, compared to existing secondary ejecting mechanism on pushing block component 6 and top
Connect four oil cylinders on needle plate component 4 respectively, the present embodiment greatly reduces the quantity of oil cylinder, simplify oil circuit, and oil cylinder is dynamic
Make without sequencing, it is to avoid cause burn failure due to operational error, ejection cycle is short, so that during the injection of single product
Between shorten, improve injection efficiency.
In the present embodiment, secondary ejecting mechanism 100 also includes ejector retainner plate travel switch 82, and ejector retainner plate travel switch 82 sets
Put on moving platen 10 and near hot flow path backing plate 12,4 activity of thimble board component is to thimble board component 4 during hot flow path backing plate 12
Ejector retainner plate travel switch 82 is touched in the end of the first ejector retainner plate 40, makes ejection driving means 8 stop driving thimble board component 4, prevents
Only the hot flow path backing plate 12 of injection mold is caused to damage.
With reference to Fig. 3, in the lump with reference to Fig. 1, in the present embodiment, secondary ejecting mechanism 100 also includes being oriented to link gear (not
Labelling), being oriented to link gear includes that pushing block guiding mechanism (unmarked), ejector retainner plate guiding mechanism (unmarked) and pushing block reset
Link gear (unmarked)；The pushing block guide pin bushing that pushing block guiding mechanism includes pushing block guide pillar 61 and is sheathed on pushing block guide pillar 61
63, one end of pushing block guide pillar 61 is fixed on pushing block component 6, and the other end is located between moving platen 10 and thimble board component 4, pushing block
Guide pin bushing 63 is fixed in moving platen 10；Ejector retainner plate guiding mechanism includes ejector retainner plate guide pillar 44 and is sheathed on ejector retainner plate guide pillar 44
Guided Ejection Bushing 46, one end of ejector retainner plate guide pillar 44 is fixed in moving platen 10, and the other end stretches out thimble board component 4 and stretches into
In hot flow path backing plate 12, Guided Ejection Bushing 46 is fixed in thimble board component 4；Pushing block reset link gear includes pushing block release link
66th, pushing block release link briquetting 67 and pushing block release link mold insert 68, pushing block release link 66 run through moving platen 10, pushing block release link 66
One end be fixed in thimble board component 4 by pushing block release link briquetting 67 and screw, the other end pass through pushing block release link mold insert
68 are arranged in pushing block component 6, may further ensure that the ejection motion of secondary ejecting mechanism 100 by arranging guiding link gear
It is reliable and stable, reduce the phenomenon that the demoulding is difficult and moving component is stuck.
With reference to Fig. 4 to Fig. 8, the course of work and principle of the secondary ejecting mechanism 100 of the present invention are elaborated：
With reference to Fig. 4 and Fig. 5, after injection mold die sinking, solid plate is separated with moving platen 10, and ejection driving means 8 drive top
Needle plate component 4 is movable in moving platen 10, and the stroke of the linear motion of thimble board component 4 is that L, i.e. sleeve 22 drive sliding shoe 25 straight
Line moves L, and then push rod 27 promotes pushing block component 6 to move along a straight line to the first ejection position, i.e. pushing block component 6 from the motion of P1 positions
To P2 positions, the first time ejection of surface frame 1 is completed；With reference to Fig. 6, when pushing block component 6 is located at the first ejection position, ejector retainner plate group
Part 4 continues to drive the sleeve 22 of the first ejection assembly 2 and the second ejection assembly 3, the first ejection assembly 2 to live along the surface of push rod 27
Dynamic, i.e., 22 head space of sleeve advances, it is impossible to drive push rod 27 to promote pushing block component 6, and push rod 27 to be not fall off protecting pushing block component
Hold in the first ejection position, now the stroke of the linear motion of thimble board component 4 is M (M<L), i.e. the second ejection assembly 3
Push rod 30 promotes the linear motion M of jacking block 34, makes jacking block 34 be moved to the second ejection position, i.e. jacking block 34 and moves to P3 from P2 positions
Position, so as to complete second ejection of surface frame 1, surface frame 1 departs from pushing block component 6, completes product ejection；With reference to Fig. 7, finished surface
After frame 1 is ejected, ejection driving means 8 reset, and the stroke of 4 reverse linear of thimble board component motion is M, and jacking block 34 is from P3 positions fortune
Move P2 positions, i.e. jacking block 34 and P2 positions are reset under the drive of push rod 30, thus, jacking block 34 is reset to the first ejection position
Put；Referring to Fig. 8, thimble board component 4 continues reverse linear motion and stroke is L, first inclined-plane of the sliding shoe 25 by guide rod 20
200 skid off push rod 27 and are resisted against the first end 222 of sleeve 20, while pushing block release link 66 drives pushing block component 6 from P2 positions
Put and move to P1 positions, and thimble board component 4 drives jacking block 34 P1 positions to be moved to from P2 positions by push rod 30, now, top
Needle plate component 4, pushing block component 6 and jacking block 34 return together, when the end of the first ejector retainner plate of thimble board component 4 touches top
During needle plate travel switch, whole ejection return terminates, i.e., secondary ejecting mechanism 100 completes to reset, matched moulds, and is noted next time
It is molded.It follows that the principle of 100 Double-ejection of secondary ejecting mechanism of the present invention, ejection process is reliable and stable, and mould is thick
Degree reduces, and ejection cycle is short, and ejection driving means are without priority ejection order, it is to avoid operational error and damage mould, improve molding
Efficiency, and ensure that the quality of shaped article.It should be noted that the movement travel of above pushing block component 6 and thimble board component 4
It is merely illustrative, the first ejection and the second ejection row of secondary ejecting mechanism 100 in actual applications, should be formulated as needed
Journey, therefore not to repeat here.
The preferred embodiments of the present invention are these are only, the scope of the claims of the present invention is not thereby limited, it is every using this
Equivalent structure or equivalent flow conversion that bright description and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (9)
1. a kind of injection mold, including solid plate, moving platen and secondary ejecting mechanism, it is characterised in that the Double-ejection
Mechanism includes thimble board component, ejection driving means, some first ejection assemblies, some second ejection assemblies and pushing block group
Part；Wherein,
The pushing block component is arranged on the moving platen towards the side of the solid plate；
The thimble board component is arranged on opposite side of the moving platen away from the solid plate；
First ejection assembly passes through the moving platen and connects the thimble board component and pushing block component, and relative to described
Moving platen activity；
Second ejection assembly passes through the moving platen and is fixed on the thimble board component, and is actively plugged in described pushing away
On block assembly；
The ejection driving means connect the thimble board component, the ejection driving means, the first ejection assembly and second
The junction that ejection assembly connects the thimble board component is spaced, and the ejection driving means are used to drive the ejector retainner plate
Component is movable in the moving platen, and the thimble board component is used for link first ejection assembly and the second ejection assembly,
First ejection assembly is used to promote the pushing block component activity to the first ejection position to be maintained at the pushing block component
First ejection position, second ejection assembly the pushing block component reach first ejection position when, with pushing block
Components apart continuation activity are to the second ejection position；
Described injection mold also includes the lower code mask located at the moving platen away from the side of the solid plate；
First ejection assembly includes guide, driving member and ejection piece；
The guide is in the form of a column setting, and its one end is fixed in the lower code mask, and the other end passes through the thimble board component；
The driving member is located in the thimble board component, and encloses the set guide；
One end of the ejection piece is connected with the pushing block component, and the other end entangles the other end of the guide, and the top
Go out part against the driving member, the ejection piece is used for ejecting under the driving of the driving member pushing block component to described the
After one ejection position, the ejection piece is separated with the driving member and makes the driving member head space advance and ejection piece positioning
Between the driving member and the guide.
2. injection mold as claimed in claim 1, it is characterised in that
The guide includes guide rod, and one end of the guide rod is fixed in the lower code mask, and the other end runs through the transmission
Part；
The driving member includes the sleeve being fixed in the thimble board component, and the sleeve encloses the set guide rod and has first
End, the first end are less than side of the thimble board component towards the solid plate；
The ejection piece includes push rod and some sliding shoes on the push rod, and the push rod is cylindrical, described
One end of push rod is fixed on the pushing block component, and the other end of the push rod encloses the other end that covers the guide rod and is located at described
Between sleeve and the guide rod, some sliding shoes stretch out the outer surface circle distribution of the bar wall of the push rod on the top
In the bar wall of bar and radially movable relative to the bar wall of the push rod, the sliding shoe is resisted against the first end of the sleeve
The surface of the guide rod is gone up and contacts, the sliding shoe is used for linking under the driving of the sleeve and pushes away described in the push rod ejection
To first ejection position, the sliding shoe is separated and is determined by the radially movable first end with the sleeve block assembly
Position is between the sleeve and the guide rod.
3. injection mold as claimed in claim 2, it is characterised in that the ejection piece also includes some pins；The push rod
Bar wall on there is some through holes and some pin holes, some through hole circle distributions on the bar wall of the push rod, institute
Stating pin hole and the other end of the push rod being extended to from the bottom of the through hole, the sliding shoe has sliding groove, the slip
During block the is arranged on the through hole and sliding shoe side with the sliding groove is connected with the bottom of the through hole, the pin
Follow closely from the other end of the push rod in the sliding groove for inserting in the pin hole and stretching into the sliding shoe, the sliding shoe is in institute
State pin described in the driving lower edge of sleeve the other end is moved to from one end of the sliding groove, and in the through hole radially-inwardly
Activity.
4. injection mold as claimed in claim 3, it is characterised in that
The guide rod includes first body of rod, second body of rod and connects the Rotary-table of first body of rod and second body of rod, described
The diameter with diameter greater than second body of rod of first body of rod, second body of rod and Rotary-table are located in the push rod, institute
Rotary-table is stated with the first inclined-plane；
The sleeve also includes the second end relative with the first end, and the first end has the second inclined-plane, described
Second inclined-plane extends to be formed from the end slope of the first end inwardly and towards the second end；
The side that the sliding shoe has sliding groove has the 3rd inclined-plane and the 4th inclined-plane, and the 3rd inclined-plane is oblique with described second
Face is parallel, and the 4th inclined-plane is parallel with first inclined-plane, and the relative opposite side of the sliding shoe is oblique positioned at described first
The junction of face and first body of rod；
3rd inclined-plane of sliding shoe described in second slope driving of the sleeve, the sliding shoe link the push rod along described
Radially-inwardly activity makes the 4th inclined-plane of the sliding shoe slide along the first inclined-plane of the guide rod to through hole, until described second oblique
Face is separated with the 3rd inclined-plane, and the sliding shoe is slipped in the through hole and is positioned at second body of rod and the sleeve
Between inner surface.
5. injection mold as claimed in claim 1, it is characterised in that second ejection assembly includes push rod and jacking block,
The jacking block is movably arranged in the pushing block component, and one end of the push rod is fixed in the thimble board component, the other end
It is fixed on the jacking block through the moving platen and pushing block component；The pushing block component is located at first ejection position
When, push rod described in the ejector retainner plate Component driver, the push rod promote the jacking block, the jacking block and the pushing block components apart
And activity is to second ejection position.
6. injection mold as claimed in claim 1, it is characterised in that the thimble board component is hollow frame structure, described
Thimble board component includes two the first ejector retainner plates and two the second ejector retainner plates, and described two first ejector retainner plate intervals are arranged side by side,
Described two second ejector retainner plates are located between described two first ejector retainner plates and interval is arranged side by side, each first ejector retainner plate
Two ends there is ejector retainner plate connecting portion, each ejector retainner plate connecting portion connects the ejection driving means respectively.
7. injection mold as claimed in claim 1, it is characterised in that the pushing block component is hollow frame structure, described to push away
Block assembly includes two the first pushing blocks and two the second pushing blocks, and described two first pushing blocks intervals are arranged side by side, described two the
Two pushing blocks are located between described two first pushing blocks and interval is arranged side by side.
8. injection mold as claimed in claim 1, it is characterised in that the secondary ejecting mechanism also includes being oriented to gear
Structure, the guiding link gear include pushing block reset link gear, and the pushing block reset link gear includes pushing block release link, pushes away
Block reset bar briquetting and pushing block release link mold insert, one end of the pushing block release link are fixed by the pushing block release link briquetting
In the thimble board component, the other end runs through the moving platen and is arranged on the pushing block by the pushing block release link mold insert
In component.
9. injection mold as claimed in claim 1, it is characterised in that the secondary ejecting mechanism also includes pushing block locating part,
The pushing block locating part is arranged on the moving platen towards on the side of the solid plate, for limiting the row of the pushing block component
Journey.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410515185.XA CN104228001B (en) | 2014-09-29 | 2014-09-29 | Injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410515185.XA CN104228001B (en) | 2014-09-29 | 2014-09-29 | Injection mold |
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| CN104228001A CN104228001A (en) | 2014-12-24 |
| CN104228001B true CN104228001B (en) | 2017-03-29 |
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| CN109177090A (en) * | 2018-09-28 | 2019-01-11 | 宇科模具(厦门)有限公司 | Mechanical type secondary ejection mechanism |
| CN110303650B (en) * | 2019-06-27 | 2024-02-23 | 常州星宇车灯股份有限公司 | Mould secondary ejection frock |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103786313A (en) * | 2014-01-23 | 2014-05-14 | 深圳创维精密科技有限公司 | Injection mold |
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| CN2712603Y (en) * | 2004-07-14 | 2005-07-27 | 比亚迪股份有限公司 | Second parting and second ejecting device used for dies |
| CN200974319Y (en) * | 2006-10-12 | 2007-11-14 | 比亚迪股份有限公司 | Injection mould |
| CN102452153A (en) * | 2010-10-25 | 2012-05-16 | 鸿富锦精密工业（深圳）有限公司 | Mold ejection device and injection molding equipment |
| CN103084548B (en) * | 2013-01-31 | 2015-04-15 | 广州海鸥卫浴用品股份有限公司 | Novel die |
| CN203697390U (en) * | 2014-01-08 | 2014-07-09 | 深圳创维精密科技有限公司 | Injection mold |
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| CN103786313A (en) * | 2014-01-23 | 2014-05-14 | 深圳创维精密科技有限公司 | Injection mold |
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Address after: 518000 first floor, R & D building of SKYWORTH science and Technology Industrial Park, Baoan District, Shiyan street, Baoan District, Shenzhen. Patentee after: SKYWORTH group intelligent equipment Co., Ltd. Address before: 518000 first floor, R & D building of SKYWORTH science and Technology Industrial Park, Baoan District, Shiyan street, Baoan District, Shenzhen. Patentee before: Shenzhen Skyworth Precision Technology Co., Ltd. |