CN218286575U - Sliding block core pulling mechanism with secondary core pulling function in injection mold - Google Patents

Sliding block core pulling mechanism with secondary core pulling function in injection mold Download PDF

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Publication number
CN218286575U
CN218286575U CN202222575777.3U CN202222575777U CN218286575U CN 218286575 U CN218286575 U CN 218286575U CN 202222575777 U CN202222575777 U CN 202222575777U CN 218286575 U CN218286575 U CN 218286575U
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China
Prior art keywords
sliding block
base
small
block base
slider
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CN202222575777.3U
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Chinese (zh)
Inventor
黄海
毕锦其
杨素琴
沈坤
周钟
范波
龙克志
徐涛
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Hi-P(shanghai)precision Mold&die Co ltd
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Hi-P(shanghai)precision Mold&die Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/33Moulds having transversely, e.g. radially, movable mould parts
    • B29C45/332Mountings or guides therefor; Drives therefor

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The utility model relates to the technical field of injection molds, in particular to a slider core pulling mechanism with secondary core pulling in an injection mold, a slider shovel base drives a small slider to move backwards during mold opening, meanwhile, a large slider base and the slider shovel base are fixed and abduct, the large slider base is locked and fixed by a ball head limiting screw, the small slider base is driven by the slider shovel base to move backwards, the small slider base is converted into driving the small slider insert to move towards the oblique upper side direction, the small slider base moves firstly and demolds and then moves together with the large slider base, and the core pulling requirement of the back-off motion of multiple directions on the same slider by product characteristics can be well solved; the problem of loosing core that the power of holding tightly of product characteristic to the slider is big can be solved well, guarantees simultaneously that the product is not pulled and warp by the power of holding tightly of slider.

Description

Sliding block core pulling mechanism with secondary core pulling function in injection mold
Technical Field
The utility model relates to an injection mould technical field is a slider mechanism of loosing core that has the secondary to loose core among the injection mould particularly.
Background
Due to various special characteristics of plastic products, the injection mold is required to be designed with a corresponding structure, such as a sliding block, and when the characteristics of a product molded on the sliding block need to be subjected to core pulling in different directions, core-pulling sliding block systems in other directions are often required to be added in the sliding block moving in one direction, so that the core pulling of the sliding block is completed, and the correctness of the action of the sliding block also needs to be ensured. Therefore, in order to meet the requirement, a sliding block core pulling mechanism for injection molding needs to be designed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem that not equidirectional loosing core needs to be accomplished to product characteristic on same slider.
The sliding block core pulling mechanism with the secondary core pulling function in the injection mold comprises a large sliding block base and a large sliding block inclined guide pillar, wherein the large sliding block inclined guide pillar is arranged in the large sliding block base, a fixed abdicating gap is formed between the large sliding block inclined guide pillar and one side of the large sliding block base, and when the small sliding block base moves, the large sliding block inclined guide pillar cannot drive the large sliding block base to move; the head of the ball head limiting screw is sunk into the bottom of the large sliding block base; the small sliding block base is arranged in the groove of the large sliding block base, and an inclined hole is formed in the small sliding block base; the small sliding block insert is matched with the inclined hole of the small sliding block base, the small sliding block insert is arranged in the groove of the small sliding block base, and gaps are formed in the upper inclined left side and the lower inclined right side so that the small sliding block insert cannot touch the large sliding block base when retreating on the upper inclined right side; when the mold is opened, the small sliding block driving piece drives the small sliding block to move backwards, meanwhile, the large sliding block base and the large sliding block inclined guide post are fixedly abduced, the large sliding block base is locked by the ball head limiting screw and does not move, the small sliding block base is driven by the small sliding block driving piece to move backwards, the small sliding block base is converted into the state of driving the small sliding block insert to move towards the inclined upper side direction, and the small sliding block base moves and demolds firstly and then moves together with the large sliding block base.
The other sliding block core pulling mechanism with the secondary core pulling function in the injection mold is also designed, and comprises a large sliding block base and a sliding block shovel base, wherein the sliding block shovel base is arranged in the small sliding block base and the large sliding block base, and a fixed abdicating gap is arranged at one side of the large sliding block base; the head of the ball head limiting screw is sunk into the bottom of the large sliding block base; the small sliding block base is arranged in the groove of the large sliding block base, and an inclined hole is formed in the small sliding block base; the small sliding block insert is matched with the inclined hole of the small sliding block base, the small sliding block insert is arranged in the groove of the small sliding block base, and gaps are formed in the upper inclined left side and the lower inclined right side so that the small sliding block insert cannot touch the large sliding block base when retreating on the upper inclined right side; when the mold is opened, the sliding block shovel base drives the small sliding block to move backwards, meanwhile, the large sliding block base and the sliding block shovel base are fixedly abduced, the large sliding block base is locked and fixed by the ball head limiting screw, the small sliding block base is driven by the sliding block shovel base to move backwards and is converted into a mode of driving the small sliding block insert to move towards the oblique upper side direction, and the small sliding block base moves firstly to be demolded and then moves together with the large sliding block base.
The utility model discloses still include following preferred technical scheme:
1. the ball head limiting screw is used for preventing the large sliding block base from being driven when the die is opened.
2. The inclined hole on the small slide block base converts the backward movement force into the demoulding direction of the small slide block insert.
3. The inclined hole on the small sliding block base provides pulling force and pushing force for the small sliding block insert to retreat towards the upper inclined side and reset in the opposite direction.
4. Comprises a large slide block guide component which is arranged at two sides of a large slide block base; the fixed wear-resistant part is arranged at the bottom of the large sliding block base; and the small sliding block guide component is matched with a square groove formed in the large sliding block base and is used for guiding the small sliding block base to move.
5. The large sliding block locking module is used for providing power for the die assembly of the large sliding block base, the upper end of the large sliding block locking module is an inclined plane, and the lower end of the large sliding block locking module is a vertical plane.
6. The sliding block comprises a small sliding block base and a large sliding block base, and is characterized by comprising a first limiting screw and a second limiting screw which are respectively arranged in the moving direction of the small sliding block base and the large sliding block base.
Compared with the prior art, the utility model, its advantage lies in:
1. the core pulling requirements of product characteristics on the reverse buckling motion in multiple directions on the same sliding block can be well met;
2. the core pulling problem of large holding force of product characteristics on the sliding block can be well solved, and meanwhile, the product is prevented from being pulled and deformed by the holding force of the sliding block;
3. the sliding block core pulling mechanism is of a mechanical structure, and is reliable in action, accurate in positioning and low in risk;
4. the sliding block core-pulling mechanism is compact in arrangement, small in occupied space and good in applicability;
5. the injection mold production efficiency is improved, and mass automatic production can be realized.
Drawings
Fig. 1 is a perspective view of a slide block core-pulling mechanism in mold closing according to an embodiment of the present invention;
fig. 2 is a top view of a slide core-pulling mechanism during mold closing according to an embodiment of the present invention;
fig. 3 is a sectional view taken along line B-B of fig. 2 according to the present invention;
fig. 4 isbase:Sub>A sectional view taken alongbase:Sub>A linebase:Sub>A-base:Sub>A of fig. 2 according to the present invention;
fig. 5 is a perspective view of a core pulling mechanism for pulling a core of a small slide block according to an embodiment of the present invention;
fig. 6 is a top view of the core pulling mechanism for core pulling of a small slider according to an embodiment of the present invention;
fig. 7 is a cross-sectional view taken along line D-D of fig. 6 in accordance with the present invention;
fig. 8 is a cross-sectional view taken along line C-C of fig. 6 in accordance with the present invention;
FIG. 9 is a perspective view of the core-pulling mechanism during the complete demolding process of the small slide block and the demolding process of the large slide block in the embodiment of the present invention;
fig. 10 is a top view of the core-pulling mechanism during the complete demolding process of the small slide block and the demolding process of the large slide block according to the embodiment of the present invention;
fig. 11 is a sectional view taken along the direction F-F of fig. 10 according to the present invention;
fig. 12 is a cross-sectional view taken in the direction E-E of fig. 10 in accordance with the present invention;
FIG. 1 is a perspective view of a slide block core-pulling mechanism in the second mold closing process of the embodiment of the present invention;
fig. 14 is a top view of the slide core-pulling mechanism in the case of the two-mold clamping of the embodiment of the present invention;
fig. 15 is a sectional view taken along line G-G of fig. 14 according to the present invention;
fig. 16 is a sectional view taken along line H-H of fig. 15 in accordance with the present invention;
fig. 17 is a perspective view of a core pulling mechanism in core pulling of the second small slider in the embodiment of the present invention;
fig. 18 is a top view of the core pulling mechanism for pulling the core of the second small slide block in the embodiment of the present invention;
fig. 19 is a sectional view taken along line I-I of fig. 18 in accordance with the present invention;
fig. 20 is a sectional view taken along the direction J-J of fig. 18 according to the present invention;
fig. 21 is a perspective view of the core-pulling mechanism in the second embodiment of the present invention, when the small slide block is completely demolded and the large slide block is demolded;
FIG. 22 is a top view of the core-pulling mechanism during the complete demolding process of the second small slider and the demolding process of the large slider according to the embodiment of the present invention;
fig. 23 is a cross-sectional view taken along line K-K of fig. 22 in accordance with the present invention;
fig. 24 is a sectional view taken along the line L-L of fig. 22 in accordance with the present invention;
in the figure: 1. the large sliding block comprises a large sliding block guiding part 2, a large sliding block inclined guide post 3, a large sliding block base 4, a small sliding block guiding part 5, a ball head limiting screw 6, a fixed wear-resistant part 7, a small sliding block insert 8, a small sliding block base 9, a small sliding block driving part 10, a large sliding block locking module 11, a first limiting screw 12, a second limiting screw 13 and a straight surface 14 sliding block shovel base.
Detailed Description
First embodiment, referring to fig. 1-4, the utility model relates to a slider mechanism of loosing core with secondary is loosed core in injection mold, including big slider guide part 1, big slider base 3, big slider guide pillar 2 to one side, little slider base 8, little slider guide part 4, little slider driving piece 9, little slider mold insert 7 and big slider lock module 10. Big slider guide part 1 set up in big slider base 3 both sides, big slider oblique guide pillar 2 is equipped with the fixed clearance of stepping down with big slider base 3 right sides, bulb limit screw 5 head sinks into big slider base 3 bottoms, and fixed wearing parts 6 sets up in big slider base 3 bottoms, and little slider base 8 sets up in the recess of big slider base 3, be equipped with the inclined hole in the little slider base 8, little slider mold insert 7 cooperates with the inclined hole of little slider base 8, sets up the square groove in the big slider base 3 and cooperates with little slider guide part 4 together for little slider base 8 is the motion direction, little slider driving piece 9 provides motion power for little slider base 8, plays power when big slider lock module 10 is the compound die of big slider base 3. When the mold is opened, the large slider base 3 and the large slider inclined guide post 2 are abduced and locked by the ball head limiting screw 5, the small slider base 8 moves backwards, meanwhile, the small slider insert 7 is driven to move towards the inclined upper side direction, and the small slider base 8 moves firstly for demolding and then moves together with the large slider base 3.
Referring to fig. 4, in a preferred embodiment, the ferrule mechanism further includes a first limit screw 11 and a second limit screw 12, which are respectively disposed in the moving directions of the small slider base 8 and the large slider base 3.
Referring to fig. 5-8, the structure that when the small slide block firstly looses the core, the large slide block does not do any action is illustrated, when the mold opening is opened to a specified distance of 15mm, the small slide block driving part 9 moves upwards to drive the small slide block base 8 to move rightwards, the small slide block base 8 moves rightwards to drive the small slide block insert 7 to move rightwards and upwards, and when the small slide block base 8 moves rightwards to the position of the first limit screw 11 and then stops, the small slide block insert 7 is completely withdrawn, and a spring is arranged in front of the small slide block base 8, so that the small slide block base 8 cannot move forwards. Meanwhile, the large slide block inclined guide post 2 moves upwards, but a fixed abdicating gap is formed between the large slide block inclined guide post and the right side of the large slide block base 3, so that the large slide block base 3 cannot be driven to move towards the right side, and a ball head limiting screw 5 is arranged below the large slide block base 3 for limiting, so that the large slide block base 3 cannot move before the die sinking is 15 mm.
Referring to fig. 9-12, after the small slide block is completely demolded, the structure of the movement of the large slide block is described, when the mold opening distance is 15mm, the small slide block driving part 9 has already separated from the small slide block base 8, and no longer drives the small slide block base 8 to do any movement, at this time, the large slide block inclined guide pillar 2 moves upward, because the fixed abdicating gap between it and the right side of the large slide block base 3 has been consumed, there is no gap, so the large slide block inclined guide pillar 2 drives the large slide block base 3 to move rightward, until the large slide block base 3 touches the second limiting screw 12, the large slide block inclined guide pillar 2 has completely separated from the large slide block base 3, the large slide block base 3 moves to the position of the second limiting screw 12 by inertia to stop moving, and at this time, the ball head groove under the large slide block base 3 just moves onto the ball head limiting screw 5, so that the large slide block base 3 does not move forward.
The slide block die assembly action is the same as that of a common slide block, the large slide block inclined guide post 2 firstly stirs the large slide block base 3 to move leftwards, and when the distance between the large slide block inclined guide post and the large slide block inclined guide post is 15mm, the small slide block driving piece 9 drives the small slide block base 8 to perform die assembly.
And when the slide block is finally matched, the left inclined plane of the large slide block base 3 is pressed tightly by the left inclined plane of the large slide block locking module 10, and meanwhile, the left inclined plane of the small slide block driving part 9 is pressed tightly by the right inclined plane of the small slide block base 8, so that the matching of the whole slide block is completed.
After that, the mold is used again for injection molding, and the next cycle is started after the injection molding is finished.
Embodiment two, referring to fig. 13-16, the utility model relates to a slider mechanism of loosing core with secondary is loosed core in injection mold, including big slider guide part 1, big slider base 3, slider shovel base 14, little slider base 8, little slider guide part 4, little slider mold insert 7 and lock module 10. Big slider guide part 1 set up in big slider base 3 both sides, slider shovel base 14 and the 3 right sides of big slider base are equipped with the fixed clearance of stepping down, and bulb spacing screw 5 head sinks into big slider base 3 bottom, and fixed wearing parts 6 sets up in big slider base 3 bottom, and little slider base 8 sets up in the recess of big slider base 3, be equipped with the inclined hole in the little slider base 8, little slider mold insert 7 cooperates with the inclined hole of little slider base 8, sets up the square groove in the big slider base 3 and cooperates with little slider guide part 4 together for little slider base 8 is the motion direction, slider shovel base 14 provides motion power for little slider base 8, plays power when locking module 10 is big slider base 3 and the compound die of little slider base 8. When the mold is opened, the large slide block base 3 and the slide block shovel base 14 yield, the straight surface of the lock module is matched with the straight surface behind the large slide block base, the small slide block is prevented from driving the large slide block to move rightwards when moving rightwards, meanwhile, the ball head limiting screw 5 limits the leftward and rightward displacement, the small slide block base 8 moves backwards, the small slide block insert 7 is driven to move towards the oblique upper side direction, and the small slide block base 8 moves with the large slide block base 3 after moving and demolding firstly.
Referring to fig. 16, in a preferred embodiment, the ferrule mechanism further includes a first limit screw 11 and a second limit screw 12, which are respectively disposed in the moving directions of the small slider base 8 and the large slider base 3.
Referring to fig. 17-20, the structure that when the small slide block firstly looses the core, the large slide block does not do any action is illustrated, when the mold opening is opened to a specified distance of 15mm, the slide block shovel base 14 moves upwards to drive the small slide block base 8 to move rightwards, the small slide block base 8 moves rightwards to drive the small slide block insert 7 to move rightwards and upwards, and when the small slide block base 8 moves rightwards to the position of the first limit screw 11 and then stops, the small slide block insert 7 is completely withdrawn, and a spring is arranged in front of the small slide block base 8, so that the small slide block base 8 cannot move forwards. Meanwhile, the sliding block shovel base 14 moves upwards, a fixed abdicating gap is formed between the sliding block shovel base and the right side of the large sliding block base 3, the ball head limiting screw 5 is arranged below the large sliding block base 3 for limiting, and the straight surface of the locking module is matched with the straight surface behind the large sliding block base, so that the large sliding block base 3 cannot drive the large sliding block base 3 to move towards the right side before the die is opened for 15 mm.
Referring to fig. 21-24, after the small slide block is completely demolded, the structure of the movement of the large slide block is described, when the mold opening distance is 15mm, the small slide block base 8 touches the first limit screw 11, at this time, the small slide block base 8 and the large slide block base 3 are bound in motion synchronization, the straight surface of the lock module is no longer matched with the matching section of the straight surface behind the large slide block base, the fixed abdicating gap between the slide block shovel base 14 and the right side of the large slide block base 3 is consumed, and no gap exists, so the slide block shovel base 14 drives the large slide block base 3 and the small slide block base 8 to move to the right side at the same time, until the large slide block base 3 touches the second limit screw 12, the slide block shovel base 14 has completely separated from the large slide block base 3, the large slide block base 3 moves to the position of the second limit screw 12 by inertia to stop moving, and at this time, the ball head groove under the large slide block base 3 just moves to the ball head limit screw 5, so that the large slide block base 3 cannot move forward.
The slide block mold closing action is the same as that of a common slide block, the slide block shovel base 14 simultaneously drives the large slide block base 3 and the small slide block base 8 to move leftwards, when the distance between the two slide block shovels and the two slide block bases is 15mm, the slide block shovels 14 drive the small slide block base 8 to close the mold, and the lock module 10 drives the large slide block base 3 to close the mold.
And when the slide block is closed to the end, the right inclined surface of the large slide block base 3 and the right inclined surface of the small slide block base are tightly pressed by the left inclined surface of the locking module 10, and the closing of the whole slide block is finished.
After that, the mold is used again for injection molding, and the next cycle is started after the injection molding is finished.
The above, only for the concrete implementation of this utility model, but the scope of protection of this utility model is not limited to this, and any person skilled in this technical field is in the technical scope of this utility model discloses, according to the technical scheme of this utility model and novel design add in equal replacement or change, all should be covered in the scope of protection of this utility model.

Claims (9)

1. A sliding block core-pulling mechanism with secondary core-pulling function in an injection mold comprises a large sliding block base and is characterized by also comprising
The large sliding block inclined guide pillar is arranged in the large sliding block base, and a fixed abdicating gap is formed between the large sliding block inclined guide pillar and one side of the large sliding block base;
the head of the ball head limiting screw is sunk into the bottom of the large sliding block base;
the small sliding block base is arranged in the groove of the large sliding block base, and an inclined hole is formed in the small sliding block base;
the small sliding block insert is matched with the inclined hole of the small sliding block base, the small sliding block insert is arranged in the groove of the small sliding block base, and gaps are formed in the upper inclined left side and the lower inclined right side so that the small sliding block insert cannot touch the large sliding block base when retreating on the upper inclined right side;
when the mold is opened, the small slide block driving piece drives the small slide block to move backwards, meanwhile, the large slide block base and the large slide block inclined guide post are fixedly abdomened, the large slide block base is locked and fixed by the ball head limiting screw, the small slide block base is driven by the small slide block driving piece to move backwards, the small slide block base is converted into a mode of driving the small slide block insert to move towards the inclined upper side direction, and the small slide block base moves firstly for demolding and then moves together with the large slide block base.
2. A sliding block core-pulling mechanism with a secondary core-pulling function in an injection mold comprises a large sliding block base and is characterized by further comprising
The sliding block shovel base is arranged in the small sliding block base and the large sliding block base, a fixed abdicating gap is formed between the sliding block shovel base and one side of the large sliding block base, and the sliding block shovel base cannot drive the large sliding block base to move when the small sliding block base moves;
the head of the ball head limiting screw is sunk into the bottom of the large sliding block base;
the small sliding block base is arranged in the groove of the large sliding block base, and an inclined hole is formed in the small sliding block base;
the small sliding block insert is matched with the inclined hole of the small sliding block base, the small sliding block insert is arranged in the groove of the small sliding block base, and gaps are formed in the upper inclined left side and the lower inclined right side so that the small sliding block insert cannot touch the large sliding block base when retreating on the upper inclined right side;
when the mold is opened, the sliding block shovel base drives the small sliding block to move backwards, meanwhile, the large sliding block base and the sliding block shovel base are fixedly abduced, the large sliding block base is locked and fixed by the ball head limiting screw, the small sliding block base is driven by the sliding block shovel base to move backwards and is converted into a mode of driving the small sliding block insert to move towards the oblique upper side direction, and the small sliding block base moves firstly to be demolded and then moves together with the large sliding block base.
3. The sliding block core pulling mechanism with the secondary core pulling function in the injection mold as claimed in claim 1 or 2, wherein the ball head limiting screw is used for preventing the large sliding block base from being driven when the mold is opened.
4. The slide core pulling mechanism with secondary core pulling in an injection mold according to claim 3, wherein the inclined hole on the small slide base converts the backward movement force into the mold release direction of the small slide insert.
5. The slide core pulling mechanism with secondary core pulling in an injection mold according to claim 4, wherein the inclined hole on the small slide base provides pulling force and pushing force for the small slide insert to retreat to the right inclined upper side and to reset in the opposite direction at the same time.
6. The slide core pulling mechanism with secondary core pulling in an injection mold of claim 5, further comprising
The large sliding block guide parts are arranged on two sides of the large sliding block base;
the fixed wear-resistant part is arranged at the bottom of the large sliding block base;
and the small sliding block guide component is matched with a square groove formed in the large sliding block base and is used for guiding the small sliding block base to move.
7. The slider core pulling mechanism with secondary core pulling in the injection mold according to claim 6, further comprising a large slider lock module for providing power for mold closing of the large slider base.
8. The slider core pulling mechanism with secondary core pulling in an injection mold according to claim 7, wherein the upper end of the large slider lock module is a slope and the lower end is a vertical surface.
9. The sliding block core pulling mechanism with the secondary core pulling function in the injection mold according to claim 8, further comprising a first limit screw and a second limit screw respectively disposed in a moving direction of the small sliding block base and the large sliding block base.
CN202222575777.3U 2022-03-24 2022-09-28 Sliding block core pulling mechanism with secondary core pulling function in injection mold Active CN218286575U (en)

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CN2022102916765 2022-03-24
CN202210291676.5A CN114379032A (en) 2022-03-24 2022-03-24 Sliding block core pulling mechanism with secondary core pulling function in injection mold

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CN114953365B (en) * 2022-07-29 2022-09-30 赫比(成都)精密塑胶制品有限公司 Mold structure
CN117445317B (en) * 2023-12-25 2024-03-19 广州导新模具注塑有限公司 Multi-angle composite internal-drawing core-pulling mechanism for injection mold

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US20120100246A1 (en) * 2010-10-21 2012-04-26 Cheng Uei Precision Industry Co,, LTD. Slide core-pulling delayed mechanism and mould with the same
CN202208094U (en) * 2011-08-09 2012-05-02 刘海标 Multi-angle ejection mechanism of injection mold
CN110303645A (en) * 2019-06-28 2019-10-08 广东松山职业技术学院 A kind of lateral twice core pulling injection molding applied in the production of coffee cleaner handgrip
CN113619041A (en) * 2021-08-30 2021-11-09 玫瑰塑胶(昆山)有限公司 Secondary core-pulling mechanism for slide block of injection mold
CN113954313B (en) * 2021-12-20 2022-03-25 广东鑫硕精密科技有限公司 Secondary slide core-pulling mechanism of injection mold

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