CN108705747A - A kind of constant volume injection mold - Google Patents
A kind of constant volume injection mold Download PDFInfo
- Publication number
- CN108705747A CN108705747A CN201810459836.6A CN201810459836A CN108705747A CN 108705747 A CN108705747 A CN 108705747A CN 201810459836 A CN201810459836 A CN 201810459836A CN 108705747 A CN108705747 A CN 108705747A
- Authority
- CN
- China
- Prior art keywords
- mounting plate
- constant volume
- plate
- positioning mounting
- fixed
- 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
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/53—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston
-
- 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
- B29C45/1742—Mounting of moulds; Mould supports
Abstract
The invention discloses a kind of constant volume injection molds,Including horizontally disposed positioning mounting plate symmetrical above and below,The positioning mounting plate of the both sides up and down is provided with fixed installation slot in opposite directions,Several elastic spacing support columns are angularly provided on the fixed installation slot of lower section,It is fixedly mounted in the positioning mounting plate on the outside of slot and is angularly provided with several elastic fixing structures,The elastic fixing structure includes that the angularly horizontal flexible stud through setting is fixedly mounted in the positioning mounting plate on the outside of slot,One end of flexible stud stretches into fixed installation slot and is vertically arranged with gripping and fixed plate,Both ends on the upside of the positioning mounting plate of top on the downside of the positioning mounting plate of both ends and lower section, which symmetrically protrude horizontally up, is provided with fixed mounting plate,The present invention has structure design compact,It is good that constant volume is molded effect,It is high that vacuum heat-preserving is molded success rate,It is high-quality,And device build is obviously reduced,The advantages that easy for installation.
Description
Technical field
The present invention relates to mould applications, specifically a kind of constant volume injection mold.
Background technology
Injection mold is a kind of tool producing plasthetics；Also plasthetics complete structure and accurate dimension are to confer to
Tool.Injection molding is to produce a kind of processing method used when certain complex-shaped components in batches, refers specifically to melt heated
Plastics by injection molding machine high pressure inject die cavity obtain formed products after cooling and solidifying, due to currently used Injection Mold Design
Unreasonable technique is old, causes variety of problems occur in actual use.
To solve the above-mentioned problems, it proposes the present invention, overcomes currently used injection mold, due to using lasting channel
Formula injection structure and technique cause the material guide structure of injection molding complicated, and device connection causes heat loss, melts apart from long
State is difficult to keep, and the problems such as causing moulding cracking or even block injection moulding apparatus, solves currently used injection mold, by
It in using non-constant volume injection structure, causes injection process control effects poor, often generates injection molding and overflow, and due to using tradition
Insulation causes heat insulation effect poor so that the present invention has structure design compact, and constant volume injection molding effect is good, vacuum heat-preserving injection molding
Success rate is high, high-quality, and device build is obviously reduced, it is easy for installation the advantages that.
Invention content
The purpose of the present invention is to provide a kind of constant volume injection molds, to solve the problems mentioned in the above background technology.
To achieve the above object, the present invention provides the following technical solutions：
A kind of constant volume injection mold, including horizontally disposed positioning mounting plate symmetrical above and below, the location and installation of the both sides up and down
Plate is provided with fixed installation slot in opposite directions, and several elastic spacing support columns are angularly provided on the fixed installation slot of lower section, Gu
Several elastic fixing structures are angularly provided in positioning mounting plate on the outside of Dingan County's tankage, the elastic fixing structure includes
Angularly the horizontal flexible stud through setting, one end of flexible stud are stretched into admittedly in positioning mounting plate on the outside of fixed installation slot
Dingan County's tankage is vertically arranged with gripping and fixed plate, on the upside of the positioning mounting plate of top on the downside of the positioning mounting plate of both ends and lower section
Both ends symmetrically protrude horizontally up and are provided with fixed mounting plate, and fixed mounting hole is provided through vertically in fixed mounting plate, on
Left half section of the positioning mounting plate of side is provided with constant volume guide injection structure, and the constant volume guide injection structure includes the positioning of top
The flexible passage of setting is run through in mounting plate centre position vertically, and positioning mounting plate is stretched out in the upper end for the passage that stretches, flexible to lead
Being horizontally disposed in the positioning mounting plate in the left side of expects pipe has constant volume to inject feed tube, and the right end of constant volume injection feed tube is led with flexible
Expects pipe is connected to by arc passage, and the lateral gap package of constant volume injection feed tube is provided with vacuum glass cover, constant volume injection
The left end centre position level of the left end centre position cooperation vacuum glass cover of feed tube is provided through internal thread mounting cylinder, matches
It closes internal thread mounting cylinder level and is provided through external screw thread location and installation cylinder, the right end cooperation constant volume note of external screw thread location and installation cylinder
It penetrates feed tube and is vertically arranged with positioning movable plate, the right side for positioning movable plate also coordinates constant volume injection feed tube to be vertically arranged with shifting
Dynamic material extrusion plate, the left end centre position cooperation external screw thread location and installation cylinder of mobile material extrusion plate is horizontally disposed guiding squeezing rod, fixed
The upper right corner of appearance injection feed tube extends upward through vacuum glass cover and is provided with and communicated with feed pipe, and the positioning mounting plate upper end of top is matched
Fixed mounting plate on the left of closing, which is partly inlayed, is provided with injection molding power mounting cup, and left half section of the inside of injection molding power mounting cup is vertical to inlay
It is embedded and is equipped with hydraulic oil container, the upper right corner cooperation hydraulic oil container of injection molding power mounting cup, which is inlayed, is provided with hydraulic motor.
As a further solution of the present invention：The lower end of the flexible passage is provided with airtight installation set, and airtight peace
The flexible passage of upper end cooperation of encapsulation is provided with resetting spring.
As a further solution of the present invention：The right vertical covering of the mobile material extrusion plate is provided with ceramic wafer, constant volume
The upper end level of injection feed tube, which is inlayed, is provided with glass plate, and the upper end of glass plate is etched with containing mark ruler.
As a further solution of the present invention：The lower right corner cooperation positioning mounting plate of the vacuum glass cover is horizontally disposed to be had
Vacuum motor, the lower left corner of vacuum motor are provided with the vacuum generator stretched into vacuum glass cover, and external screw thread location and installation
The left end of cylinder is symmetrical above and below to be provided with rotation adjusting mounting hole.
As a further solution of the present invention：The lower end of the feed pipe, which is inlayed, is provided with unidirectional inlet valve, and arc is led
The left end of expects pipe, which is also inlayed, is provided with guide solenoid valve.
As a further solution of the present invention：The right end cooperation of the hydraulic motor, which is oriented to squeezing rod and is horizontally disposed with, hydraulic pressure
Telescopic mast, and the lower right corner for being molded power mounting cup inlays and is provided with controller.
As further scheme of the invention：The inside of the gripping and fixed plate covers and is provided with rubber grip block,
The outside upper and lower ends of gripping and fixed plate are vertical to be provided with flexible guide post through stretching outward, and the inner end of flexible stud is stretched into
Gripping and fixed plate movable inlaying is provided with limit rotary shaft, and the outer end of flexible stud is stretched out positioning mounting plate and is provided through and turns
Fixed handle.
Compared with prior art, the beneficial effects of the invention are as follows：Currently used injection mold is overcome, is held due to using
Continuous channel-type injection structure and technique cause the material guide structure of injection molding complicated, and device connection causes heat to dissipate apart from long
It loses, molten condition is difficult to keep, and the problems such as causing moulding cracking or even block injection moulding apparatus, solves currently used injection molding
Mold often generates injection molding and overflows due to using non-constant volume injection structure, causing injection process control effects poor, and due to
Cause heat insulation effect poor using conventional vacuum measure so that the present invention has structure design compact, and constant volume injection molding effect is good, vacuum
Heat preservation injection molding success rate is high, high-quality, and device build is obviously reduced, it is easy for installation the advantages that.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of constant volume injection mold.
Fig. 2 is a kind of structural schematic diagram of elastic fixing structure in constant volume injection mold.
Fig. 3 is a kind of structural schematic diagram of constant volume guide injection structure in constant volume injection mold.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig.1~3, in the embodiment of the present invention, a kind of constant volume injection mold, including it is symmetrical above and below horizontally disposed fixed
Position mounting plate 4, the positioning mounting plate 4 of the both sides up and down is provided in opposite directions is fixedly mounted slot 1, the fixed installation slot 1 of lower section
On be angularly provided with several elastic spacing support columns 2, be fixedly mounted in the positioning mounting plate 4 in 1 outside of slot and be angularly arranged
It includes that angularly water is fixedly mounted in the positioning mounting plate 4 in 1 outside of slot to have several elastic fixing structures, the elastic fixing structure
The flat flexible stud 8 through setting, one end of flexible stud 8 stretch into fixed installation slot 1 and are vertically arranged with gripping and fixed plate 5, institute
The inside for stating gripping and fixed plate 5 covers and is provided with rubber grip block 6, the outside upper and lower ends of gripping and fixed plate 5 vertically to
Outer that stretching is provided with flexible guide post 10, the inner end of flexible stud 8 stretches into 5 movable inlaying of gripping and fixed plate and is provided with limit
Shaft 7, and the outer end of flexible stud 8 stretches out positioning mounting plate 4 and is provided through rotational handle 9, the positioning mounting plate 4 of top
The both ends of 4 downside of positioning mounting plate of upside both ends and lower section, which symmetrically protrude horizontally up, is provided with fixed mounting plate 3, is fixedly mounted
Fixed mounting hole is provided through on plate 3 vertically, left half section of the positioning mounting plate 4 of top is provided with constant volume guide injection molding knot
Structure, the constant volume guide injection structure include that the flexible passage of setting is run through in 4 centre position of positioning mounting plate of top vertically
28, the lower end of the flexible passage 28 is provided with airtight installation set 27, and the flexible guide of upper end cooperation of airtight installation set 27
Pipe 28 is provided with resetting spring 29, and positioning mounting plate 4 is stretched out in the upper end for the passage 28 that stretches, and the left side of flexible passage 28 is determined
Being horizontally disposed on the mounting plate 4 of position has constant volume to inject feed tube 19, and the right end and flexible passage 28 of constant volume injection feed tube 19 are logical
The connection of arc passage 25 is crossed, the lateral gap package of constant volume injection feed tube 19 is provided with vacuum glass cover 22, constant volume injection
The left end centre position level of the left end centre position cooperation vacuum glass cover 22 of feed tube 19 is provided through internal thread installation
Cylinder 17,17 level of cooperation internal thread mounting cylinder are provided through external screw thread location and installation cylinder 16, external screw thread location and installation cylinder 16
Right end cooperation constant volume injection feed tube 19 is vertically arranged with positioning movable plate 18, and the right side of positioning movable plate 18 also coordinates constant volume to note
It penetrates feed tube 19 and is vertically arranged with mobile material extrusion plate 21, the right vertical covering of the mobile material extrusion plate 21 is provided with ceramic wafer,
The upper end level of constant volume injection feed tube 19, which is inlayed, is provided with glass plate, and the upper end of glass plate is etched with containing mark ruler 20, moves
The left end centre position cooperation external screw thread location and installation cylinder 16 of dynamic material extrusion plate 21 is horizontally disposed guiding squeezing rod 15, constant volume injection
The upper right corner of feed tube 19 extends upward through vacuum glass cover 22 and is provided with and communicated with feed pipe 23, and the lower end of the feed pipe 23 is inlayed
It is provided with unidirectional inlet valve 24, and the left end of arc passage 25 is also inlayed and is provided with guide solenoid valve 30, the vacuum glass
The lower right corner cooperation positioning mounting plate 4 of cover 22 is horizontally disposed vacuum motor 26, and the lower left corner of vacuum motor 26, which is provided with, to be stretched into
Vacuum generator in vacuum glass cover 22, and symmetrical above and below be provided with of left end of external screw thread location and installation cylinder 16 rotates adjusting peace
Hole is filled, the fixed mounting plate 3 half in 4 upper end of the positioning mounting plate cooperation left side of top, which is inlayed, is provided with injection molding power mounting cup, note
Vertical inlay in left half section of inside for moulding power mounting cup is provided with hydraulic oil container 12, is molded the upper right corner fluid,matching of power mounting cup
Pressure oil case 12, which is inlayed, is provided with hydraulic motor 13, and the right end cooperation of the hydraulic motor 13, which is oriented to squeezing rod 15 and is horizontally disposed with, liquid
Telescopic mast 14 is pressed, and the lower right corner for being molded power mounting cup inlays and is provided with controller 11.
The present invention operation principle be：By the way that upper model and drag are fixed in the positioning mounting plate 4 of upper and lower both sides,
By the way that positioning mounting plate 4 to be separately fixed on the elevating mechanism of external setting, especially by the flexible stud 8 of rotation, folder is realized
The stable holding for holding fixed plate 5, model is fixed, and by the effect of controller, upper model is connected to flexible passage 28, root
It is molded according to the location structure being arranged between positioning mounting plate 4, according to the magnitude of injection molding, rotation external screw thread location and installation cylinder 16
Control positioning movable plate 18 moves, and the containing mark ruler 20 by observing upper end is determined injection molding constant volume, and opens unidirectional
Inlet valve extracts fused materials, realizes vacuum by vacuum motor 26 and vacuum glass cover 22, prevents heat Quick diffusing, then lead to
It crosses hydraulically extensible column 14 and squeezes guiding squeezing rod 15, and open guide solenoid valve 30, realize that the material of constant volume passes through arc guide
Pipe 25 injects in mold, and the moulding in mold is taken out after heat dissipation sizing, is repeated the above steps, injection molding operation is completed, overcomes
Currently used injection mold, due to using channel-type injection structure and technique is continued, causing the material guide structure of injection molding complicated,
And device connection causes heat loss, molten condition to be difficult to keep apart from long, causes moulding cracking even obstruction injection molding dress
The problems such as setting solves currently used injection mold, due to using non-constant volume injection structure, injection process control is caused to imitate
Fruit is poor, often generates injection molding and overflows, and due to causing heat insulation effect poor using conventional vacuum measure so that the present invention has structure
Compact to design, constant volume injection molding effect is good, and vacuum heat-preserving is molded success rate height, high-quality, and device build is obviously reduced, installation side
Just the advantages that.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (7)
1. a kind of constant volume injection mold, including horizontally disposed positioning mounting plate symmetrical above and below（4）, which is characterized in that on described
The positioning mounting plate of lower both sides（4）It is provided with fixed installation slot in opposite directions（1）, the fixed installation slot of lower section（1）On angularly set
It is equipped with several elastic spacing support columns（2）, slot is fixedly mounted（1）The positioning mounting plate in outside（4）It is angularly provided on if
Dry elasticity fixed structure, the elastic fixing structure include that slot is fixedly mounted（1）The positioning mounting plate in outside（4）On angularly water
The flat flexible stud through setting（8）, stretch stud（8）One end stretch into fixed installation slot（1）It is vertically arranged with and grips
Plate（5）, the positioning mounting plate of top（4）The positioning mounting plate at upside both ends and lower section（4）The symmetrical level in the both ends of downside is stretched
Go out to be provided with fixed mounting plate（3）, fixed mounting plate（3）On be provided through fixed mounting hole vertically, the positioning peace of top
Loading board（4）Left half section is provided with constant volume guide injection structure, and the constant volume guide injection structure includes the positioning mounting plate of top
（4）The flexible passage of setting is run through in centre position vertically（28）, stretch passage（28）Upper end stretch out positioning mounting plate
（4）, stretch passage（28）Left side positioning mounting plate（4）Upper be horizontally disposed with has constant volume to inject feed tube（19）, constant volume note
Penetrate feed tube（19）Right end and flexible passage（28）Pass through arc passage（25）Connection, constant volume inject feed tube（19）'s
Lateral gap package is provided with vacuum glass cover（22）, constant volume injection feed tube（19）Left end centre position coordinate vacuum glass
Cover（22）Left end centre position level be provided through internal thread mounting cylinder（17）, coordinate internal thread mounting cylinder（17）Level is passed through
It wears and is equipped with external screw thread location and installation cylinder（16）, external screw thread location and installation cylinder（16）Right end cooperation constant volume inject feed tube（19）
It is vertically arranged with positioning movable plate（18）, position movable plate（18）Right side also coordinate constant volume inject feed tube（19）It is vertically arranged
There is mobile material extrusion plate（21）, mobile material extrusion plate（21）Left end centre position coordinate external screw thread location and installation cylinder（16）It is horizontally disposed
There is guiding squeezing rod（15）, constant volume injection feed tube（19）The upper right corner extend upward through vacuum glass cover（22）Be provided with and communicated with into
Expects pipe（23）, the positioning mounting plate of top（4）The fixed mounting plate in upper end cooperation left side（3）It partly inlays and is provided with injection molding power peace
Dress cover, vertical inlay in left half section of inside for being molded power mounting cup are provided with hydraulic oil container（12）, it is molded the right side of power mounting cup
Upper angle coordinates hydraulic oil container（12）It inlays and is provided with hydraulic motor（13）.
2. a kind of constant volume injection mold according to claim 1, which is characterized in that the flexible passage（28）Lower end
It is provided with airtight installation set（27）, and airtight installation set（27）Upper end cooperation stretch passage（28）It is provided with resetting spring
（29）.
3. a kind of constant volume injection mold according to claim 1, which is characterized in that the mobile material extrusion plate（21）Right side
Vertical covering is provided with ceramic wafer, and constant volume injects feed tube（19）Upper end level inlay and be provided with glass plate, glass plate it is upper
End is etched with containing mark ruler（20）.
4. a kind of constant volume injection mold according to claim 1, which is characterized in that the vacuum glass cover（22）Bottom right
Angle coordinates positioning mounting plate（4）It is horizontally disposed to have vacuum motor（26）, vacuum motor（26）The lower left corner be provided with and stretch into vacuum
Cloche（22）Interior vacuum generator, and external screw thread location and installation cylinder（16）Left end it is symmetrical above and below be provided with rotation adjust peace
Fill hole.
5. a kind of constant volume injection mold according to claim 1, which is characterized in that the feed pipe（23）Lower end inlay
It is provided with unidirectional inlet valve（24）, and arc passage（25）Left end also inlay and be provided with guide solenoid valve（30）.
6. a kind of constant volume injection mold according to claim 1, which is characterized in that the hydraulic motor（13）Right end match
It closes and is oriented to squeezing rod（15）It is horizontally disposed to have hydraulically extensible column（14）, and the lower right corner for being molded power mounting cup inlays and is provided with control
Device processed（11）.
7. a kind of constant volume injection mold according to claim 1, which is characterized in that the gripping and fixed plate（5）Inside
Covering is provided with rubber grip block（6）, gripping and fixed plate（5）Outside upper and lower ends vertical be provided with outward through stretching out
Flexible guide post（10）, stretch stud（8）Inner end stretch into gripping and fixed plate（5）Movable inlaying is provided with limit rotary shaft（7）, and
Flexible stud（8）Outer end stretch out positioning mounting plate（4）It is provided through rotational handle（9）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810459836.6A CN108705747A (en) | 2018-05-15 | 2018-05-15 | A kind of constant volume injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810459836.6A CN108705747A (en) | 2018-05-15 | 2018-05-15 | A kind of constant volume injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108705747A true CN108705747A (en) | 2018-10-26 |
Family
ID=63868146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810459836.6A Pending CN108705747A (en) | 2018-05-15 | 2018-05-15 | A kind of constant volume injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108705747A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109571864A (en) * | 2018-12-22 | 2019-04-05 | 苏州骏创汽车科技股份有限公司 | It is a kind of for processing the mold of vehicle dormer window control panel moulding |
| CN109736171A (en) * | 2019-01-24 | 2019-05-10 | 广州市佑安土木工程有限公司 | A kind of paver |
| CN111390145A (en) * | 2020-04-22 | 2020-07-10 | 芜湖市金贸流体科技股份有限公司 | Casting mould of high-efficient steadiness |
| CN112912221A (en) * | 2018-11-21 | 2021-06-04 | 东和株式会社 | Transfer drive mechanism, resin molding apparatus, and method for manufacturing resin molded product |
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| CN206614717U (en) * | 2017-03-27 | 2017-11-07 | 浙江工业职业技术学院 | A kind of plastic mould for being easily installed and fixing |
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| CN208343332U (en) * | 2018-05-15 | 2019-01-08 | 深圳市金汇菱科技有限公司 | A kind of constant volume injection mold |
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Patent Citations (4)
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| CN103481477A (en) * | 2013-10-11 | 2014-01-01 | 昆山市华浦塑业有限公司 | Heating injection molding machine of screw rod |
| CN206614717U (en) * | 2017-03-27 | 2017-11-07 | 浙江工业职业技术学院 | A kind of plastic mould for being easily installed and fixing |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112912221A (en) * | 2018-11-21 | 2021-06-04 | 东和株式会社 | Transfer drive mechanism, resin molding apparatus, and method for manufacturing resin molded product |
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| CN109571864A (en) * | 2018-12-22 | 2019-04-05 | 苏州骏创汽车科技股份有限公司 | It is a kind of for processing the mold of vehicle dormer window control panel moulding |
| CN109736171A (en) * | 2019-01-24 | 2019-05-10 | 广州市佑安土木工程有限公司 | A kind of paver |
| CN111390145A (en) * | 2020-04-22 | 2020-07-10 | 芜湖市金贸流体科技股份有限公司 | Casting mould of high-efficient steadiness |
| CN111390145B (en) * | 2020-04-22 | 2021-06-22 | 芜湖市金贸流体科技股份有限公司 | Casting mould of high-efficient steadiness |
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Application publication date: 20181026 |
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| RJ01 | Rejection of invention patent application after publication |