CN106863720B - A kind of injection mold - Google Patents
A kind of injection mold Download PDFInfo
- Publication number
- CN106863720B CN106863720B CN201710199247.4A CN201710199247A CN106863720B CN 106863720 B CN106863720 B CN 106863720B CN 201710199247 A CN201710199247 A CN 201710199247A CN 106863720 B CN106863720 B CN 106863720B
- Authority
- CN
- China
- Prior art keywords
- injection molding
- rectangle
- dynamic model
- rotation axis
- fixed arm
- 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
- 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
- B29C45/2618—Moulds having screw-threaded mould walls
- B29C45/262—Moulds having screw-threaded mould walls provided with unscrewing drive means
-
- 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
- B29C2045/4036—Ejector constructions; Ejector operating mechanisms driven by a screw and nut mechanism
Abstract
A kind of injection mold, including mold base, cover half body, dynamic model body and injection nozzle head, left rectangle guide groove and two right rectangle guide grooves there are two being respectively set at left and right sides of the dynamic model body, it is slidably fitted with left guide post and right guide post respectively in two left rectangle guide grooves and two right rectangle guide grooves, dynamic model body lower end bilateral symmetry is fixedly installed left fixed arm and right fixed arm, the left fixed arm and right fixed arm lower end are fixedly installed transmission arm, engaging groove is provided at the cover half body upper end center, the injection nozzle head is mounted in the engaging groove, injection molding cavity is provided in the cover half body, the injection molding cavity upper end is provided with the sprue for being connected to the engaging groove, the rectangle injection molding matched with the injection molding cavity is provided at the dynamic model body upper end center with chamber；Apparatus of the present invention structure is simple, stable, and design rationally, can reduce defect rate.
Description
Technical field
The present invention relates to technical field of mold, and in particular to a kind of injection mold.
Background technique
Injection mold is a kind of tool for producing plasthetics；Also plasthetics complete structure and accurate dimension are to confer to
Tool, injection mold are a kind of devices used when producing certain complex-shaped components in batches, are referred specifically to the modeling of heated thawing
Material obtains plastic product after cooling and solidifying by the die cavity that injection molding machine high pressure is injected in injection mold.
Injection mold is demoulded after cooling and solidifying in plastic melt, and can all be made generally in clamping process
Knock-outs are extend into die cavity, and knock-outs generally can all be provided with barb, in demoulding, are drawn plastic product using barb
Out, this structure is easy to damage plastic product in demoulding, to increase defect rate.
Summary of the invention
The purpose of the present invention is to provide a kind of injection molds, can overcome the drawbacks described above of the prior art.
According to the present invention, a kind of injection mold of apparatus of the present invention, including mold base, cover half body, dynamic model body and injection
Nozzle head, is respectively set that there are two left rectangle guide groove and two right rectangle guide grooves, two left sides at left and right sides of the dynamic model body
It is slidably fitted with left guide post and right guide post, dynamic model body lower end or so respectively in rectangle guide groove and two right rectangle guide grooves
It is symmetrically fixedly installed left fixed arm and right fixed arm, the left fixed arm and right fixed arm lower end are fixedly installed transmission arm,
Engaging groove is provided at the cover half body upper end center, the injection nozzle head is mounted in the engaging groove, the cover half body
In be provided with injection molding cavity, the injection molding cavity upper end is provided with the sprue for being connected to the engaging groove, the dynamic model body upper end center
Place is provided with the through slot that chamber is matched in the rectangle injection molding matched with the injection molding cavity with chamber and the connection rectangle injection molding, described logical
The first rotation axis is equipped with by rolling bearing in slot, first rotation axis upper end extends to the rectangle injection molding and matches in chamber,
First rotation axis lower end extends downwardly and is fixedly installed with driven wheel of differential, can by rolling bearing in the right fixed arm
It is rotatably mounted the second rotation axis, second rotation axis left end extends to the left and is fixedly installed with and the driven wheel of differential
The drive bevel gear being meshed, the second rotation axis right end extend to the right and are fixedly installed with spur gear, the spur gear position
A lower end between two right guide posts, and in two right guide posts is provided with the rack segments being meshed with the spur gear, institute
It states transmission arm lower end and is provided with lifting drive.
Further technical solution, the lifting drive include the hydraulic cylinder that is fixedly mounted in the mold base with
And it is mounted on the piston drive rod in the hydraulic cylinder, the bottom wall of piston drive rod upper end and the transmission arm is fixed to be connected
It connects.
Further technical solution, the length of the rack segments are less than the transmission arm bottom wall to the dynamic model body bottom wall
Distance.
Further technical solution, first rotation axis upper surface are flushed with dynamic model body upper surface, and described
One rotation axis is located at rectangle injection molding and the section in chamber is provided with external thread section.
The beneficial effects of the invention are as follows：
The section in chamber is provided with external thread section since the first rotation axis is located at rectangle injection molding, through supercooling and cured
Plastic melt can be threadedly engaged with external thread section, therefore, through supercooling and cured plastic melt can follow the dynamic model body to
Lower movement, is demoulded to facilitate；After spur gear moves down and engages with rack segments, dynamic model body continues slide downward meeting
Turn spur rotation, and spur gear will drive the rotation of the first rotation axis, so that external thread section is made to rotate, and due to passing through
Cooling and cured plastic melt can not rotate in rectangle injection molding with chamber, therefore, through supercooling and cured plastic melt
Upward sliding and the external thread section can only be progressively disengaged, when completely disengaging the outer spiral shell through supercooling and cured plastic melt
It can be removed when line section；Due to that can be threadedly engaged with external thread section through supercooling and cured plastic melt, through being subcooled
But it can prevent from making because pulling out by force through supercooling and cured plastic melt when and cured plastic melt is detached from external thread section
It deforms or damages, defect rate can be reduced；Apparatus of the present invention structure is simple, stable, and design is reasonable.
Detailed description of the invention
It, below will be to embodiment or existing in order to illustrate more clearly of inventive embodiments or technical solution in the prior art
Attached drawing needed in technical description is briefly described, it should be apparent that, the accompanying drawings in the following description is only to invent
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is a kind of overall structure diagram of injection mold of the invention.
Fig. 2 is the overlooking structure diagram of dynamic model body in the present invention.
Fig. 3 is the top view of cover half body in Fig. 1.
Specific embodiment
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
This specification（Including any accessory claim, abstract and attached drawing）Disclosed in any feature, except non-specifically chatting
It states, can be replaced by other alternative features that are equivalent or have similar purpose.That is, unless specifically stated, each feature is only
It is an example in a series of equivalent or similar characteristics.
As shown in Figure 1-3, a kind of injection mold of the invention, including mold base 10, cover half body 12, dynamic model body 11 and note
Nozzle head 50 is penetrated, is respectively set that there are two left rectangle guide grooves 111 and two right rectangles guiding at left and right sides of the dynamic model body 11
Slot 112 is slidably fitted with left guide post 18 in two left rectangle guide grooves 111 and two right rectangle guide grooves 112 respectively and the right side is led
Column 19,11 lower end of the dynamic model body bilateral symmetry are fixedly installed left fixed arm 13 and right fixed arm 14, the left fixed arm 13
It is fixedly installed transmission arm 15 with right 14 lower end of fixed arm, is provided with engaging groove, the note at 12 upper end center of cover half body
It penetrates nozzle head 50 to be mounted in the engaging groove, injection molding cavity 120,120 upper end of injection molding cavity is provided in the cover half body 12
It is provided with the sprue 121 for being connected to the engaging groove, is provided at 11 upper end center of dynamic model body and 120 phase of injection molding cavity
The through slot of chamber 110 is matched in the rectangle injection molding of cooperation with chamber 110 and the connection rectangle injection molding, passes through rolling bearing in the through slot
First rotation axis 21 is installed, 21 upper end of the first rotation axis extends to the rectangle injection molding and matches in chamber 110, and described first turn
21 lower end of moving axis extends downwardly and is fixedly installed with driven wheel of differential 20, can be rotated in the right fixed arm 14 by rolling bearing
Ground is equipped with the second rotation axis 31, and 31 left end of the second rotation axis extends to the left and is fixedly installed with and the driven wheel of differential
20 drive bevel gears 30 being meshed, 31 right end of the second rotation axis extends to the right and is fixedly installed with spur gear 310, described
Spur gear 310 is located between two right guide posts 19, and a lower end in two right guide posts 19 is provided with and the spur gear 310
The rack segments 190 being meshed, 15 lower end of transmission arm are provided with lifting drive.
Valuably, the lifting drive includes the hydraulic cylinder 17 being fixedly mounted in the mold base 10 and installation
The bottom wall of piston drive rod 16 in the hydraulic cylinder 17,16 upper end of piston drive rod and the transmission arm 15 is fixed to be connected
It connects.
Valuably, the length of the rack segments 190 be less than 15 bottom wall of transmission arm to 11 bottom wall of dynamic model body away from
From so that the rack segments 190 will not interfere with 11 slide downward of dynamic model body.
Valuably, 21 upper surface of the first rotation axis is flushed with 11 upper surface of dynamic model body, and first rotation
Axis 21 is located at rectangle injection molding and the section in chamber 110 is provided with external thread section 210.
In use, being driven up the transmission arm 15 using the lifting drive, the dynamic model body 11 is driven
It fits closely to the top and with the cover half body 12, matches the rectangle injection molding with the injection molding cavity 120 with chamber 110,
After the injection nozzle head 50 is engaged with the engaging groove, injection plastic melt is carried out to the injection molding cavity 120, when the note
After moulding the injection of chamber 120, stop injection, after the plastic melt cooling in the injection molding cavity 120 and solidifying, makes the lifting
Driving device operation, and the dynamic model body 11 slowly sliding downwards is driven, since first rotation axis 21 is located at the rectangle
Injection molding is provided with external thread section 210 with the section in chamber 110, and through supercooling and cured plastic melt can be with external thread section 210
It is threadedly engaged, therefore, the dynamic model body 11 can be followed to move down through supercooling and cured plastic melt, thus described in being detached from
Injection molding cavity 120, the and after spur gear 310 moves down and engages with the rack segments 190, the dynamic model body 11 continue to
Lower slider will drive the spur gear 310 and rotate, and since the drive bevel gear 30 is meshed with the driven wheel of differential 11,
It is rotated to which the spur gear 310 will drive first rotation axis 21, and will drive institute after first rotation axis 21 rotation
It states external thread section 210 to rotate, can not be sent out due to matching chamber 110 in rectangle injection molding through supercooling and cured plastic melt
Raw rotation, therefore, through supercooling and cured plastic melt upward sliding and can only progressively disengage the external thread section 210, when
It can be removed when completely disengaging the external thread section 210 through supercooling and cured plastic melt.
The beneficial effects of the invention are as follows：The section in chamber is provided with external screw thread since the first rotation axis is located at rectangle injection molding
Section, can be threadedly engaged, therefore, through supercooling and cured plastic melt with external thread section through supercooling and cured plastic melt
The dynamic model body can be followed to move down, demoulded to facilitate；After spur gear moves down and engages with rack segments, move
Die body, which continues slide downward, will drive spur gear rotation, and spur gear will drive the rotation of the first rotation axis, to make external thread section
It rotates, and due to through supercooling and cured plastic melt is in rectangle injection molding can not rotate with chamber, through being subcooled
But and cured plastic melt upward sliding and can only progressively disengage the external thread section, when through supercooling and cured plastics it is molten
Body can be removed when completely disengaging the external thread section；Due to through supercooling and cured plastic melt can be with external thread section screw thread
Cooperation, therefore can prevent from making because pulling out by force through supercooling when being detached from external thread section through supercooling and cured plastic melt
And cured plastic melt is deformed or is damaged, and can reduce defect rate；Apparatus of the present invention structure is simple, stable, if
Meter is reasonable.
The above, the specific embodiment only invented, but invent protection scope be not limited thereto, it is any without
The change or replacement that creative work is expected are crossed, should all be covered within the protection scope of invention.Therefore, the protection scope of invention
It should be determined by the scope of protection defined in the claims.
Claims (3)
1. a kind of injection mold, including mold base, cover half body, dynamic model body and injection nozzle head, it is characterised in that：The dynamic model
It is respectively set at left and right sides of body there are two left rectangle guide groove and two right rectangle guide grooves, two left rectangle guide grooves and two
Left guide post and right guide post are slidably fitted in right rectangle guide groove respectively, dynamic model body lower end bilateral symmetry is fixedly installed a left side
Fixed arm and right fixed arm, the left fixed arm and right fixed arm lower end are fixedly installed transmission arm, in cover half body upper end
Engaging groove is provided at the heart, the injection nozzle head is mounted in the engaging groove, is provided with injection molding cavity in the cover half body, institute
It states injection molding cavity upper end and is provided with the sprue for being connected to the engaging groove, be provided at the dynamic model body upper end center and the injection molding
The through slot of chamber is matched in the rectangle injection molding that chamber matches with chamber and the connection rectangle injection molding, is pacified in the through slot by rolling bearing
Equipped with the first rotation axis, first rotation axis upper end extends to the rectangle injection molding and matches in chamber, first rotation axis lower end
It extends downwardly and is fixedly installed with driven wheel of differential, be rotatably mounted with second turn by rolling bearing in the right fixed arm
Moving axis, second rotation axis left end extend to the left and are fixedly installed with the active conical tooth being meshed with the driven wheel of differential
Wheel, the second rotation axis right end extend to the right and are fixedly installed with spur gear, and the spur gear is located between two right guide posts,
And a lower end in two right guide posts is provided with the rack segments being meshed with the spur gear, the transmission arm lower end is provided with
Lifting drive；Wherein, first rotation axis upper surface is flushed with dynamic model body upper surface, and first rotation axis
The section in chamber is provided with external thread section positioned at rectangle injection molding.
2. injection mold according to claim 1, it is characterised in that：The lifting drive includes being fixedly mounted on institute
The piston drive rod stating the hydraulic cylinder in mold base and being mounted in the hydraulic cylinder, piston drive rod upper end with it is described
The bottom wall of transmission arm is fixedly connected.
3. injection mold according to claim 1, it is characterised in that：The length of the rack segments is less than the transmission arm bottom
Distance of the wall to the dynamic model body bottom wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710199247.4A CN106863720B (en) | 2017-03-29 | 2017-03-29 | A kind of injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710199247.4A CN106863720B (en) | 2017-03-29 | 2017-03-29 | A kind of injection mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106863720A CN106863720A (en) | 2017-06-20 |
| CN106863720B true CN106863720B (en) | 2018-11-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710199247.4A Active CN106863720B (en) | 2017-03-29 | 2017-03-29 | A kind of injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106863720B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107415173B (en) * | 2017-08-18 | 2019-06-14 | 佛山博莱瑞汽车部件有限公司 | A kind of easy-to-dismount injection mold with interior overhead structure |
| CN109203381A (en) * | 2018-08-09 | 2019-01-15 | 合肥天物金佰包装制品有限公司 | A kind of injection mold of screw thread demoulding |
| CN115255326B (en) * | 2022-09-26 | 2022-12-16 | 宁波臻至机械模具有限公司 | Electric motor car gear die casting die |
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| JP3738239B2 (en) * | 2002-07-18 | 2006-01-25 | 等 前島 | Injection mold |
| JP5179127B2 (en) * | 2007-09-19 | 2013-04-10 | 株式会社山城精機製作所 | Mold screw removal device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106863720A (en) | 2017-06-20 |
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Effective date of registration: 20181018 Address after: 315600 Xia Jin Village, Chengguan Town, Hai County, Ningbo, Zhejiang Applicant after: NINGHAI NANJIE PLASTIC CO., LTD. Address before: 510335 149b four, 1 Xingang East Road, Haizhuqu District, Guangzhou, Guangdong, China, 1 Applicant before: Guangzhou Chen Shun digital measurement and control equipment Co., Ltd. |
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