CN108859022B - Large-stroke inner buckle core pulling mechanism - Google Patents
Large-stroke inner buckle core pulling mechanism Download PDFInfo
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- CN108859022B CN108859022B CN201810725923.1A CN201810725923A CN108859022B CN 108859022 B CN108859022 B CN 108859022B CN 201810725923 A CN201810725923 A CN 201810725923A CN 108859022 B CN108859022 B CN 108859022B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 30
- 238000009966 trimming Methods 0.000 claims description 11
- 238000001746 injection moulding Methods 0.000 claims description 5
- 238000007493 shaping process Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 20
- 230000008569 process Effects 0.000 abstract description 13
- 238000006073 displacement reaction Methods 0.000 abstract description 8
- 238000000465 moulding Methods 0.000 abstract description 3
- 150000001875 compounds Chemical class 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- 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
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/44—Removing or ejecting moulded articles for undercut articles
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention provides a large-stroke inner buckle core-pulling mechanism, and belongs to the technical field of dies. The technical problem that the existing core-pulling demolding device is unfavorable for accurate control is solved. The large-stroke inner buckling core pulling mechanism comprises a fixed die, a movable die and two inserts for inner buckling molding, wherein a die cavity is formed by the fixed die, the movable die and the inserts, a wedge-shaped core pulling plate is arranged in the movable die, the core pulling plate is located below the die cavity, the two inserts are respectively and slidably connected to two sides of the core pulling plate, the movable die comprises a core pulling seat, a limiting groove is formed in the core pulling seat, the inserts are slidably matched in the limiting groove, two end faces of the inserts along the length direction of the core pulling plate are in limiting abutting connection with the inner side walls of the limiting groove, and the inserts are always located between the small end and the large end of the core pulling plate. The length of the core drawing plate of the large-stroke inner buckle core pulling mechanism can be designed to be longer, the inclination of two side edges can be smaller, and thus the axial displacement of the core drawing plate, which is the same as the displacement of the insert in the core pulling process, is longer, and the stroke of the insert can be accurately controlled.
Description
Technical Field
The invention belongs to the technical field of dies, and relates to a large-stroke inner buckle core-pulling mechanism.
Background
The existing product has more and more complex structural design, some inner holes of the product are basically and reversely buckled, the quantity of the reversely buckled products is more, the materials of the products are harder, the products cannot be ejected by forced release, the reversely buckled parts are designed into sliding blocks for core pulling, and finally the products can be ejected. The insert is arranged above the sliding block, so that the space is small, and the die structure is optimized to meet the requirements.
Chinese patent publication No. CN106476223a discloses a centripetal shrinkage core-pulling demoulding device of injection mold annular back-off, which can better realize core-pulling demoulding of the opposite back-off structure inside the injection product, thereby achieving the purpose of reducing the working strength.
The above devices still have some drawbacks: the length dimension design of the dovetail plate is shorter, so that the inclination of the two sides of the dovetail plate is larger, the displacement of the insert is sensitive and is not beneficial to accurate control, and in addition, the contact area between the insert and the dovetail plate is gradually reduced in the core pulling process, so that the stress state is continuously changed, and the accurate control is not beneficial. Those skilled in the art may consider lengthening the dovetail plate to address this problem, but this is too dependent on the design of the form of the workpiece, which may otherwise affect the formation of the cavity.
Disclosure of Invention
The invention aims at the problems existing in the prior art, and provides a large-stroke inner buckle core-pulling mechanism, which aims at solving the technical problems that: how to improve the operation precision of the inner buckle core-pulling mechanism.
The aim of the invention can be achieved by the following technical scheme:
the utility model provides a detain mechanism of loosing core in large stroke, includes cover half, movable mould and two inserts that are used for interior knot fashioned, cover half, movable mould and insert form the die cavity, be equipped with in the movable mould and be wedge-shaped loose core board, loose core board is located the die cavity below, two inserts sliding connection respectively in the both sides limit of this board of taking out core, works as when taking out core board along length direction motion can drive two inserts move in opposite directions or in opposite directions, its characterized in that, the movable mould includes and takes out core seat, has seted up the spacing groove in this seat of loosing core, insert sliding fit in the spacing inslot, this insert is along loose core board length direction's both ends terminal surface and spacing inslot's inside wall spacing support, loose core board runs through along the horizontal direction the seat of loosing core, the insert is located between the tip and the big end of this board of loosing core all the time.
The fixed die, the movable die and the inserts form a die cavity for space molding, the two inserts are respectively connected to the two sides of the core pulling plate in a sliding mode, so that two oppositely arranged inner buckling models are formed on the workpiece, the core pulling plate is wedge-shaped, when the core pulling plate is pulled out along the length direction, the inserts on the two sides are mutually close under the action of component force, the inserts are separated from the workpiece, and when the core pulling plate is pushed inwards when the core pulling plate needs to be reset, the two inserts are outwards expanded to reach the molding position. Through arranging the core drawing plate to penetrate through the core drawing seat along the horizontal direction, the length dimension of the core drawing plate can not influence the die cavity above the core drawing plate, so that the length of the core drawing plate can be longer, the inclination of two side edges can be smaller, the axial displacement of the core drawing plate is longer by the same distance of the insert displacement in the core drawing process, thereby being convenient for accurately controlling the stroke of the insert, in addition, the insert is always positioned between the small end and the large end of the core drawing plate, the contact area of the insert and the core drawing plate is always stable in the moving process, the insert can not generate overlarge stress change in the moving process, and the position stability and the operation precision are further ensured; through offer and be used for the holding and provide spacing groove for the insert in the seat of loosing core, the both ends terminal surface of the board length direction of loosing core of inserting like this all obtains spacingly, guarantees like this that the core board drives the in-process that the insert looses core and resets and inserts only along the spacing groove slip to ensure operation precision.
In the large-stroke inner buckle core pulling mechanism, a plurality of ejector rods used for ejecting injection molding pieces are arranged in the movable die, the ejector rods are vertically arranged up and down, a strip-shaped groove extending along the length direction is formed in the middle of the core pulling plate, and part of the ejector rods penetrate through the strip-shaped groove. Through setting up a plurality of ejector pins of vertical arrangement in the movable mould, the work piece unloading after the shaping of being convenient for like this sets up the bar groove that extends along core pulling plate length direction at the middle part of core pulling plate to make the ejector pin wear to locate in the bar inslot, like this in core pulling plate motion in-process ejector pin can provide the direction for the core pulling plate, guarantee core pulling plate's direction of motion is accurate, thereby further improve core pulling mechanism's operation precision.
In the large-stroke inner buckle core pulling mechanism, the core pulling seat is internally provided with the limiting part, and when the insert core is pulled in place, one side of the insert facing the core pulling plate is propped against the limiting part. Through setting up spacing portion in taking out core seat, make the insert loose core in place the side that the insert faced the core board can support with spacing portion when putting out core, and the core board can not continue the action when the insert supports with spacing portion like this and then represents that the distance of loosing core is enough, is convenient for accurate operation.
In the large-stroke inner buckle core pulling mechanism, the side, facing the core pulling plate, of the insert is provided with the abdication groove, and when the insert is in place, the ejector rod is positioned in the abdication groove. The insert core pulling stroke is required to be larger for special workpiece modeling, and the insert can interfere with the ejector rod in the moving process, and the core pulling stroke is improved and the ejector rod cannot be bumped by arranging the abdication groove on one side of the insert, which faces the core pulling plate.
In the large-stroke inner buckle core pulling mechanism, the outer side face of the movable die is fixed with a horizontal sliding plate, a horizontal through sliding groove is formed in the surface of the sliding plate, the large end of the core pulling plate is arranged in the sliding groove, and the inner side wall of the sliding groove can limit two sides of the large end of the core pulling plate. Through fixed slide in the lateral surface of movable mould, offer the spout that can hold core pulling plate big end at the surface of slide, and make spout both sides wall form spacingly to the big end both sides of core pulling plate, guarantee like this that core pulling plate is in the whole motion in-process bottom all obtain abundant support, guarantee that operating condition is stable, in addition, the both sides wall of spout further provides spacingly for the big end both sides of core pulling plate, guarantees that the direction of motion of core pulling plate is accurate to improve core pulling mechanism's operating accuracy.
In the large-stroke inner buckle core pulling mechanism, the large-end side edge of the core pulling plate is provided with a trimming surface, and the trimming surface is parallel to and abuts against the side wall of the sliding groove. Through set up the side cut face at the big end side of loose core board, make side cut face and the parallel support of lateral wall of spout lean on, increased the area of contact of loose core board big end side and spout lateral wall like this and make the board of loosing core when moving more be difficult to take place the deflection.
In the large-stroke inner buckle core pulling mechanism, a positioning column which is vertically arranged is fixed at the bottom of the fixed die, a positioning groove which is matched with the positioning column is formed in the surface of the core pulling plate, and the positioning column can be inserted into the positioning groove when the movable die is clamped. Through setting up vertical reference column in the bottom of cover half, the reference column is just right with the constant head tank when taking out the core board and resetting in place like this and carrying out the compound die to insert in the constant head tank along with the compound die gradually, the reference column is limited the position of taking out the core board in the early injection molding in-process like this, guarantee operation and shaping precision.
Compared with the prior art, the invention has the following advantages:
1. the large-stroke inner buckle core pulling mechanism penetrates through the core pulling seat along the horizontal direction by arranging the core pulling plate, so that the length dimension of the core pulling plate can not affect the structure and the die cavity inside the movable die, the length of the core pulling plate can be designed to be longer, the inclination of two sides can be smaller, the axial displacement of the core pulling plate is longer by the same distance when the insert is displaced in the core pulling process, the stroke of the insert is convenient to precisely control, in addition, the insert is always positioned between the small end and the large end of the core pulling plate, the contact area of the insert and the core pulling plate is always stable in the moving process, the insert can not generate excessive stress change in the moving process, and the position stability and the operation precision are further ensured.
2. The large-stroke inner buckle core pulling mechanism is characterized in that the side edge of the large end of the core pulling plate is provided with the trimming surface, the trimming surface is abutted against the side wall of the sliding groove in parallel, the contact area between the side edge of the large end of the core pulling plate and the side wall of the sliding groove is increased, and the core pulling plate is more difficult to deflect during movement.
Drawings
Fig. 1 is a schematic perspective view of the large-stroke inner buckle core pulling mechanism.
Fig. 2 is a schematic cross-sectional view of the large-stroke inner buckle core pulling mechanism.
Fig. 3 is a schematic diagram of a partial structure of the large-stroke inner buckle core pulling mechanism.
Fig. 4 is a schematic perspective view of the core print.
Fig. 5 is a schematic perspective view of the drawer core plate.
Fig. 6 is a schematic view of a cross-sectional structure of the large-stroke inner buckle core-pulling mechanism in another direction.
In the figure, 1, a fixed mold; 11. positioning columns;
2. a movable mold; 21. a core drawing seat; 211. a limit groove; 212. a limit part; 22. a push rod;
3. an insert; 31. a relief groove;
4. a mold cavity;
5. a core drawing plate; 51. a bar-shaped groove; 52. trimming the edge surface; 53. a positioning groove;
6. a slide plate; 61. and a sliding groove.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1-5, the large-stroke inner-buckling core pulling mechanism comprises a fixed die 1, a movable die 2 and two inserts 3 for inner buckling forming, wherein the fixed die 1, the movable die 2 and the inserts 3 form a die cavity 4, wedge-shaped core pulling plates 5 are arranged in the movable die 2, the core pulling plates 5 are dovetail plates, a core pulling plate 5 is positioned below the die cavity 4, the two inserts 3 are respectively and slidably connected to two side edges of the core pulling plates 5, when the core pulling plates 5 move along the length direction, the two inserts 3 can be driven to move in opposite directions or opposite directions, the movable die 2 comprises a core pulling seat 21, a limiting groove 211 is formed in the core pulling seat 21, the inserts 3 are slidably matched in the limiting groove 211, two side surfaces of the inserts 3 along the length direction of the core pulling plates 5 are in limiting abutment with the inner side walls of the limiting groove 211, the core pulling plates 5 penetrate through the core pulling seat 21 along the horizontal direction, and the inserts 3 are always positioned between the small end and the large end of the core pulling plate 5. The fixed die 1, the movable die 2 and the inserts 3 form a die cavity 4 for space forming, the two inserts 3 are respectively connected to two sides of the core pulling plate 5 in a sliding mode, so that two opposite inner buckling models are formed on a workpiece, the core pulling plate 5 is wedge-shaped, when the core pulling plate 5 is pulled outwards along the length direction, the inserts 3 on the two sides are mutually close under the action of component force, so that the inserts 3 are separated from the workpiece, and when the core pulling plate 5 is required to be reset, the core pulling plate 5 is pushed inwards, so that the two inserts 3 are outwards expanded to reach a forming position. Through arranging the core drawing plate 5 to penetrate through the core drawing seat 21 along the horizontal direction, the length dimension of the core drawing plate 5 can not affect the die cavity 4 above the core drawing plate 5, so that the length of the core drawing plate 5 can be longer, the inclination of two side edges can be smaller, the axial displacement of the insert 3, which is the same as the displacement of the core drawing plate 5, in the core drawing process is longer, so that the stroke of the insert 3 can be conveniently and accurately controlled, in addition, the insert 3 is always positioned between the small end and the large end of the core drawing plate 5, the contact area of the insert 3 and the core drawing plate 5 is always stable in the moving process, the insert 3 can not generate excessive stress change in the moving process, and the position stability and the operation precision are further ensured; through offer and be used for the holding and provide spacing groove 211 for insert 3 in core seat 21, insert 3 all obtains spacingly along core pulling plate 5 length direction's both sides like this, guarantees like this that core pulling plate 5 drives the in-process that insert 3 looses core and resets insert 3 and all only slides in spacing groove 211 to ensure the operating accuracy. Further, seven ejector rods 22 for ejecting injection molding pieces are arranged in the movable mold 2, the ejector rods 22 are vertically arranged up and down, a strip-shaped groove 51 extending along the length direction is formed in the middle of the core drawing plate 5, and three ejector rods 22 penetrate through the strip-shaped groove 51. Through setting up a plurality of ejector pins 22 of vertical arrangement in movable mould 2, the work piece unloading after the shaping of being convenient for like this sets up the bar groove 51 that extends along core pulling plate 5 length direction at the middle part of core pulling plate 5 to make ejector pin 22 wear to locate in the bar groove 51, in the core pulling plate 5 motion in-process ejector pin 22 can provide the direction for core pulling plate 5 like this, ensure that core pulling plate 5's direction of motion is accurate, thereby further improve core pulling mechanism's operation precision.
As shown in fig. 3 and 4, the core holder 21 has a stopper 212 therein, and when the insert 3 is core-pulled in place, the insert 3 abuts against the stopper 212 on the side facing the core plate 5. By arranging the limiting part 212 in the core pulling seat 21, one side of the insert 3 facing the core pulling plate 5 can be propped against the limiting part 212 when the insert 3 is in core pulling position, so that the core pulling plate 5 can not continue to act when the insert 3 is propped against the limiting part 212, which means that the core pulling distance is enough, and accurate operation is convenient. Further, a relief groove 31 is formed on a side of the insert 3 facing the core pulling plate 5, and when the insert 3 is pulled in place, the ejector rod 22 is positioned in the relief groove 31. For special workpiece modeling, the core pulling stroke of the insert 3 is required to be larger, at the moment, the insert 3 can interfere with the ejector rod 22 in the moving process, and the core pulling stroke is improved and the ejector rod 22 cannot be impacted by arranging the abdication groove 31 on one side of the insert 3 facing the core pulling plate 5.
As shown in fig. 1, 3, 5 and 6, a horizontal sliding plate 6 is fixed on the outer side surface of the movable mold 2, a sliding groove 61 penetrating horizontally is formed on the surface of the sliding plate 6, the large end of the core drawing plate 5 is arranged in the sliding groove 61, and the inner side wall of the sliding groove 61 can limit the two sides of the large end of the core drawing plate 5. Through fixed slide 6 in the lateral surface of movable mould 2, offer the spout 61 that can hold core pulling plate 5 big end at the surface of slide 6, and make spout 61 both sides wall form spacingly to the big end both sides of core pulling plate 5, guarantee like this that core pulling plate 5 all obtains abundant support in whole motion in-process bottom, guarantee that operating condition is stable, in addition, the both sides wall of spout 61 further provides spacingly for the big end both sides of core pulling plate 5, guarantee that the direction of motion of core pulling plate 5 is accurate, thereby improve core pulling mechanism's operation precision. One side of the large end of the core plate 5 is provided with a trimming surface 52, and the trimming surface 52 is parallel to and abutted against the side wall of the sliding groove 61. By arranging the trimming surface 52 on the large-end side edge of the core pulling plate 5, the trimming surface 52 is abutted against the side wall of the sliding groove 61 in parallel, so that the contact area between the large-end side edge of the core pulling plate 5 and the side wall of the sliding groove 61 is increased, and deflection is more difficult to occur when the core pulling plate 5 moves.
As shown in fig. 3, 5 and 6, a positioning column 11 is fixed at the bottom of the fixed mold 1, a positioning groove 53 adapted to the positioning column 11 is provided on the surface of the core pulling plate 5, and when the movable mold 2 is closed, the positioning column 11 can be inserted into the positioning groove 53. Through setting up vertical reference column 11 in the bottom of cover half 1, the reference column 11 is just right with constant head tank 53 when taking out core board 5 to reset in place and carry out the compound die like this to insert in constant head tank 53 gradually along with the compound die, the reference column 11 in the early injection molding process is limited the position of taking out core board 5 like this, guarantee operation and shaping precision.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (4)
1. The utility model provides a large-stroke inner buckle core pulling mechanism, includes cover half (1), movable mould (2) and two insert (3) that are used for inner buckle shaping, cover half (1), movable mould (2) and insert (3) form die cavity (4), be equipped with in movable mould (2) and be wedge-shaped core pulling plate (5), core pulling plate (5) are located die cavity (4) below, two insert (3) sliding connection respectively in the both sides limit of this core pulling plate (5), when core pulling plate (5) are along length direction motion can drive two insert (3) move in opposite directions or in opposite directions, characterized in that, movable mould (2) are including taking out core seat (21), offer spacing groove (211) in this core pulling seat (21), insert (3) sliding fit in spacing groove (211), this core pulling plate (3) are along the both ends terminal surface of core pulling plate (5) and spacing abutment of spacing groove (211), core pulling plate (5) are along the horizontal direction all the time run through between this insert (3) and this insert (5) is big end and small; a plurality of ejector rods (22) for ejecting injection molding pieces are arranged in the movable mould (2), the ejector rods (22) are vertically arranged up and down, a strip-shaped groove (51) extending along the length direction is formed in the middle of the core pulling plate (5), and part of the ejector rods (22) penetrate through the strip-shaped groove (51) and can provide guidance for the movement of the core pulling plate (5); the movable die is characterized in that a horizontal sliding plate (6) is fixed on the outer side face of the movable die (2), a horizontal through sliding groove (61) is formed in the surface of the sliding plate (6), the large end of the core pulling plate (5) is arranged in the sliding groove (61), the inner side wall of the sliding groove (61) can limit the two sides of the large end of the core pulling plate (5), a positioning column (11) in vertical arrangement is fixed at the bottom of the fixed die (1), a positioning groove (53) matched with the positioning column (11) is formed in the surface of the core pulling plate (5), and the positioning column (11) can be inserted into the positioning groove (53) when the movable die (2) is clamped.
2. The large-stroke inner buckle core pulling mechanism according to claim 1, wherein the core pulling seat (21) is internally provided with a limiting part (212), and when the insert (3) is pulled into position, one side of the insert (3) facing the core pulling plate (5) is abutted against the limiting part (212).
3. The large-stroke inner buckle core pulling mechanism according to claim 2, wherein a yielding groove (31) is formed in one side of the insert (3) facing the core pulling plate (5), and when the insert (3) is in core pulling position, the ejector rod (22) is located in the yielding groove (31).
4. The large-stroke inner buckle core pulling mechanism according to claim 1, wherein the large-end side edge of the core pulling plate (5) is provided with a trimming surface (52), and the trimming surface (52) is parallel to and abutted against the side wall of the sliding groove (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810725923.1A CN108859022B (en) | 2018-07-04 | 2018-07-04 | Large-stroke inner buckle core pulling mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810725923.1A CN108859022B (en) | 2018-07-04 | 2018-07-04 | Large-stroke inner buckle core pulling mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108859022A CN108859022A (en) | 2018-11-23 |
| CN108859022B true CN108859022B (en) | 2024-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810725923.1A Active CN108859022B (en) | 2018-07-04 | 2018-07-04 | Large-stroke inner buckle core pulling mechanism |
Country Status (1)
| Country | Link |
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| CN (1) | CN108859022B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104249441A (en) * | 2014-09-18 | 2014-12-31 | 温州恒田模具发展有限公司 | Core-pulling mechanism of injection mould |
| CN104526986A (en) * | 2014-12-24 | 2015-04-22 | 宁波如强模塑有限公司 | Injection mold with multi-insert block linkage mechanism for automobile lamp decorative strip |
| CN105904678A (en) * | 2016-06-30 | 2016-08-31 | 浙江台州美多模具有限公司 | Rotational core pulling mechanism for injection mould |
| CN106111944A (en) * | 2016-08-30 | 2016-11-16 | 江苏苏美达车轮有限公司 | A kind of automatic internal core withdrawing device of the low-pressure casting mould |
| CN106393604A (en) * | 2016-10-31 | 2017-02-15 | 台州市黄岩坤泰模具有限公司 | Overturned elastic deformation demould mechanism in injection mould plastic parts |
| CN106476223A (en) * | 2016-11-23 | 2017-03-08 | 宁波周龙塑胶模具有限公司 | A kind of concentric contraction core-pulling demolding device of injection mold ring-type back-off |
| CN208615238U (en) * | 2018-07-04 | 2019-03-19 | 永高股份有限公司 | A kind of stroke internal buckle core-pulling mechanism |
-
2018
- 2018-07-04 CN CN201810725923.1A patent/CN108859022B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104249441A (en) * | 2014-09-18 | 2014-12-31 | 温州恒田模具发展有限公司 | Core-pulling mechanism of injection mould |
| CN104526986A (en) * | 2014-12-24 | 2015-04-22 | 宁波如强模塑有限公司 | Injection mold with multi-insert block linkage mechanism for automobile lamp decorative strip |
| CN105904678A (en) * | 2016-06-30 | 2016-08-31 | 浙江台州美多模具有限公司 | Rotational core pulling mechanism for injection mould |
| CN106111944A (en) * | 2016-08-30 | 2016-11-16 | 江苏苏美达车轮有限公司 | A kind of automatic internal core withdrawing device of the low-pressure casting mould |
| CN106393604A (en) * | 2016-10-31 | 2017-02-15 | 台州市黄岩坤泰模具有限公司 | Overturned elastic deformation demould mechanism in injection mould plastic parts |
| CN106476223A (en) * | 2016-11-23 | 2017-03-08 | 宁波周龙塑胶模具有限公司 | A kind of concentric contraction core-pulling demolding device of injection mold ring-type back-off |
| CN208615238U (en) * | 2018-07-04 | 2019-03-19 | 永高股份有限公司 | A kind of stroke internal buckle core-pulling mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108859022A (en) | 2018-11-23 |
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