CN210791902U - Core pulling mechanism and injection mold - Google Patents
Core pulling mechanism and injection mold Download PDFInfo
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- CN210791902U CN210791902U CN201920981677.6U CN201920981677U CN210791902U CN 210791902 U CN210791902 U CN 210791902U CN 201920981677 U CN201920981677 U CN 201920981677U CN 210791902 U CN210791902 U CN 210791902U
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- limiting
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- pulling mechanism
- core pulling
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Abstract
The utility model provides a mechanism of loosing core and injection mold belongs to mould technical field, the mechanism of loosing core includes: the limiting part, the one end and the movable mould benevolence sliding connection of locating part, the other end of locating part with movable mould benevolence cooperation is suitable for the spacing portion of shaping product, and when the drawing of patterns, the locating part with spacing portion grafting cooperation is suitable for the restriction the displacement of product in drawing of patterns direction. Mechanism of loosing core, injection moulding spacing portion, with the cooperation of pegging graft of locating part can prevent to loose core or the side direction drawing of patterns in-process in the side direction, the slip that the product atress inequality leads to, the reliability is high, and the practicality is strong.
Description
Technical Field
The utility model relates to the technical field of mold, especially, relate to a mechanism of loosing core and injection mold.
Background
In the process of using a mold to produce a plastic product with a complex structure, in the process of core pulling or lateral demolding, the stress state is complex, the plastic part is easy to slide, and product defects such as scratches, whitening and the like of some surfaces (appearance surfaces, assembly surfaces and the like) are caused.
SUMMERY OF THE UTILITY MODEL
The utility model provides a problem be at the ejecting core of loosing core of drawing of patterns or side direction drawing of patterns in-process, the gliding problem of easy atress of product.
In order to solve the above problem, an aspect of the present invention provides a core-pulling mechanism, which includes: the limiting part, the one end and the movable mould benevolence sliding connection of locating part, the other end of locating part with movable mould benevolence cooperation is suitable for the spacing portion of shaping product, and when the drawing of patterns, the locating part with spacing portion grafting cooperation is suitable for the restriction the displacement of product in drawing of patterns direction.
Therefore, injection moulding's spacing portion, with the locating part cooperation of pegging graft can prevent at the side direction and loose core or the side direction drawing of patterns in-process, the slip that the product atress inequality leads to, the reliability is high, and the practicality is strong.
Optionally, a guide hole is formed in the movable mold core, and the limiting member is slidably connected with the guide hole.
Therefore, under the direction of guiding hole, the slip of locating part is reliable and more stable, and the practicality is strong.
Optionally, the movable mold core is further provided with a forming groove, the forming groove is communicated with the guide hole, and the forming groove is matched with the limiting part and is suitable for forming the limiting part.
Therefore, when the product is molded, the product protrudes to one side to form the limiting part, and the problem that the product is abnormal in quality due to the fact that the thickness of the product is reduced is avoided.
Optionally, the guide hole communicates with the bottom of the forming groove.
Therefore, the forming groove and the sliding are arranged in the guide hole, the limiting part is formed in a matched mode in the limiting part, the limiting part is large in contact surface with the limiting part, the reliability is high, and the practicability is high.
Optionally, the limiting part is suitable for forming one end of the limiting part and is further provided with anti-skid grains.
Therefore, the spacing portion of product go up the shaping with anti-skidding line matched with anti-skidding line, the locating part with spacing portion grafting cooperation prevents the gliding effect of product is better, and the practicality is stronger.
Optionally, the anti-slip thread is recessed in the structure of the limiting member.
Therefore, shaping and indent structure assorted evagination structure on the spacing portion of product, the locating part with the spacing effect of spacing portion is more obvious, and the reliability is high, and the practicality is strong.
Optionally, the limiting part is an ejector pin of the core pulling mechanism.
Therefore, the ejector pin can realize the purpose of ejecting the product, can prevent the product from sliding, and has high reliability and strong practicability.
Optionally, the anti-slip pattern is disposed on an axial end surface of the thimble.
Therefore, spacing portion with the terminal surface shaping of locating part with anti-skidding line assorted line, the locating part with spacing portion grafting cooperation interlock height is difficult for separating when receiving the side direction drawing of patterns power, and the reliability is high, and the practicality is strong.
Optionally, at least one limiting member is arranged in the lateral core pulling direction.
Therefore, the product is stable in stress, high in reliability and strong in practicability, and cannot slide or deflect in the lateral core-pulling or lateral demolding process.
The utility model discloses another aspect provides an injection mold, injection mold includes the mechanism of loosing core.
Drawings
FIG. 1 is a schematic structural diagram of an indoor unit panel of an air conditioner;
fig. 2 is a schematic view of the movement direction of each inclined top of the panel of the indoor unit of the air conditioner in fig. 1 during demolding;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a schematic structural diagram of one embodiment of the core pulling mechanism according to the present invention;
FIG. 5 is an enlarged partial view taken at B in FIG. 4;
FIG. 6 is a schematic view of the product of FIG. 5 separated from the cavity block;
fig. 7 is a schematic structural diagram of a limiting member in one embodiment of the core-pulling mechanism of the present invention;
FIG. 8 is a schematic structural view of a movable mold core of the core-pulling mechanism shown in FIG. 7;
fig. 9 is a schematic position diagram of a limiting member according to an embodiment of the present invention;
FIG. 10 is a schematic view of the product of FIG. 9 separated from the cavity block;
fig. 11 is a schematic position diagram of a limiting member of one embodiment of the core-pulling mechanism according to the present invention;
FIG. 12 is a schematic view of the product of FIG. 11 separated from the cavity block;
fig. 13 is a schematic structural diagram of one embodiment of the core pulling mechanism according to the present invention;
FIG. 14 is an enlarged partial view at C of FIG. 13;
fig. 15 is a schematic structural diagram of one embodiment of the core pulling mechanism according to the present invention;
FIG. 16 is an enlarged partial view taken at D in FIG. 15;
FIG. 17 is a schematic structural view of one embodiment of the injection mold of the present invention;
fig. 18 is a partial enlarged view at E in fig. 17.
Description of reference numerals:
1-product, 110-lateral structure, 120-limiting part, 2-oblique top, 3-limiting part, 310-anti-skid pattern, 320-first limiting boss, 4-movable mold core, 410-forming groove, 420-guiding hole, 430-limiting hole, 5-oblique ejector rod, 6-fixing plate and 7-push plate.
Detailed Description
In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following description will be made in detail by taking an air conditioner indoor unit panel as an example.
Referring to fig. 1 to 5, fig. 1 is a schematic structural view of an indoor unit panel of an air conditioner, fig. 2 is a schematic view of a movement direction of each lifter of the indoor unit panel of the air conditioner in fig. 1 during demolding, fig. 3 is a partially enlarged view of a portion a in fig. 2, fig. 4 is a schematic structural view of one embodiment of a core pulling mechanism of the present invention, and fig. 5 is a partially enlarged view of a portion B in fig. 4; a plurality of lateral structures 110 are arranged on the product 1, the product 1 is an air-conditioning indoor unit panel in the figure, the lateral structures 110 are buckles, and due to the structural position requirements, when in injection molding, the core is molded by the inclined top 2 or other lateral molding mechanisms, when in lateral core pulling or lateral demoulding, under the push of the push plate 7 and the fixed plate 6, the thimble and the inclined ejector rod 5 synchronously move upwards, the inclined ejector rod 5 drives the inclined ejector 2 to carry out lateral demoulding, the panel of the indoor unit of the air conditioner inevitably receives lateral demoulding force in each direction, while the direction and the size of the lateral ejection force generated by each lifter 2 are uncertain, when acting on the product 1, the resultant force of the lateral demolding force applied to the product 1 is not zero, and the product 1 can deviate and slide, so that the surface of the product has quality defects of scratches, dragging, whitening and the like.
Referring to fig. 4 to 18, a core-pulling mechanism includes: the stop part 3, the one end and the movable mould benevolence 4 sliding connection of stop part 3, the other end of stop part 3 with movable mould benevolence 4 cooperation is suitable for the spacing portion 120 of shaping product 1, and when the drawing of patterns, stop part 3 with spacing portion 120 grafting cooperation is suitable for the restriction the displacement of product 1 in the drawing of patterns direction.
Specifically, in some embodiments, the limiting member 3 is matched with the movable die core 4 through a sliding groove; in other embodiments, the movable mold core 4 is provided with a guide hole 420, and the limiting member 3 is slidably connected to the guide hole 420.
Referring to fig. 7 and 8, specifically, in some examples, the axial direction of the guide hole 420 is arranged along the vertical direction, the movable mold core 4 is further provided with a limiting hole 430, the limiting hole 430 is located below the guide hole 420, and the cross section of the limiting hole 430 is larger than the cross section of the guide hole 420; correspondingly, a first limiting boss 320 is arranged at the lower end of the limiting member 3, and when the limiting member 3 is connected with the guide hole 420 in a sliding manner, the first limiting boss 320 is limited in the limiting hole 430 by the transition part between the limiting hole 430 and the guide hole 420; a spring is further connected to the limiting member 3 in a sliding manner, the spring is located in the limiting hole 430, and two ends of the spring respectively abut against the end surface of the limiting hole 430 and the first limiting boss 320; the end face of the first limiting boss 320 far away from the product 1 is limited in the limiting hole 430 through a locking block. Thus, in a mold closing state, under the action of the spring, the lower end of the first limiting boss 320 of the limiting member 3 abuts against the locking block, and the upper end part of the limiting member 3 is inserted into the cavity to form the limiting portion 120; in the lateral demolding process, due to the insertion fit between the limiting part 3 formed by injection molding and the limiting part 120, the limiting part 3 does not immediately separate from the limiting part 120, but moves upwards along with the product 1, and therefore, the insertion fit between the limiting part 3 and the limiting part 120 can prevent the product 1 from sliding caused by uneven stress in the lateral core pulling or lateral demolding process.
Referring to fig. 4 to 6, in other embodiments, the axial direction of the guide hole 420 is arranged along the vertical direction, and the limiting member 3 is fixed between the fixed plate 6 and the push plate 7 of the movable mold assembly. Like this, in the side direction drawing of patterns in-process, locating part 3 is in under the push pedal 7 effect, with product 1 moves together, locating part 3 with spacing portion 120's grafting cooperation can prevent at the side direction core pulling or side direction drawing of patterns in-process, the slip that the product atress is uneven leads to.
Therefore, under the guidance of the guide hole 420, the sliding of the limiting member 3 is more stable and reliable, and the practicability is strong.
Therefore, injection moulding's spacing portion, with the locating part cooperation of pegging graft can prevent at the side direction and loose core or the side direction drawing of patterns in-process, the slip that the product atress inequality leads to, the reliability is high, and the practicality is strong.
The movable mold core 4 is further provided with a forming groove 410, the forming groove 410 is communicated with the guide hole 420, and the forming groove 410 is matched with the limiting member 3 and is suitable for forming the limiting portion 120.
Specifically, the molding groove 410 is located above the guide hole 420, the molding groove 410 is communicated with the cavity of the product 1, and in the mold closing state, the limiting member 3 is partially located in the molding groove 410, and in some embodiments, the upper end surface of the limiting member 3 is flush with the parting plane L1 of the product 1.
Therefore, when the product 1 is molded, the product 1 protrudes to one side to form the limiting part 120, so that quality abnormity caused by thickness reduction of the product 1 is avoided.
Referring to fig. 11 and 12, it should be understood that, in the present embodiment, the upper end of the limiting member 3 may also protrude a distance from the parting plane L1, so that when the limiting portion 120 is molded, a part of the limiting portion 120 is located at the upper end of the parting plane L1, and another part is located at the lower end of the parting plane L1, so that the insertion fit between the limiting member 3 and the limiting portion 120 can be ensured, and the distance that the limiting portion 120 protrudes from the parting plane L1 can be reduced, which is highly reliable and practical.
Referring to fig. 9 and 10, it should be understood that, in other embodiments, the molding groove 410 is not formed on the core insert 4, but the upper end of the retainer 3 protrudes upward from the parting plane L1 for a certain distance, so that the retainer 120 can also be formed.
The guide hole 420 communicates with the bottom of the forming groove 410.
Specifically, in some embodiments, the cross-sections of the forming groove 410 and the guide hole 420 are circular and are arranged coaxially.
Therefore, the forming groove 410 is formed in the guide hole 420 in cooperation with the limiting member 3 to form the limiting portion 120, and the contact surface between the limiting portion 120 and the limiting member 3 is large, so that the reliability is high and the practicability is high.
Referring to fig. 13 to 16, one end of the limiting member 3 suitable for forming the limiting portion 120 is further provided with an anti-slip pattern 310.
Specifically, the anti-slip pattern 310 is disposed at the upper end of the limiting member 3, when the mold is closed, the limiting member 3 and the movable mold core 4 are matched to form the limiting portion 120, and the limiting portion 120 is corresponding to the anti-slip pattern 310 to form an anti-slip pattern matched with the anti-slip pattern 310.
Therefore, the limiting part 120 of the product 1 is formed with the anti-slip lines 310, and the limiting part 3 is connected with the limiting part 120 in a plugging and matching manner to prevent the product 1 from sliding better and have stronger practicability.
Specifically, the anti-slip pattern 310 is recessed in the position of the position-limiting member 3.
Therefore, the convex structure matched with the concave structure is formed on the limiting part 120 of the product 1, the limiting part 3 and the limiting part 120 have more obvious limiting effect, high reliability and strong practicability.
It should be understood that the anti-slip threads 310 may also be structures protruding beyond the retaining member 3. Thus, the position-limiting portion 120 forms a concave structure matching the convex structure.
Of course, other anti-slip patterns are possible.
Referring to fig. 17 and 18, specifically, the limiting member 3 is an ejector pin of the core pulling mechanism.
That is, the thimble has the function of the stopper 3.
Like this, the thimble can enough realize ejecting product 1 and reach the purpose of ejecting the product, can prevent again product 1's slip, the reliability is high, and the practicality is strong.
The anti-slip pattern 310 is disposed on an axial end surface of the thimble.
Specifically, the anti-slip pattern 310 is disposed on the upper end surface of the limiting member 3.
Therefore, spacing portion 120 with the terminal surface shaping of locating part 3 with anti-skidding line 310 assorted line, locating part 3 with spacing portion 120 grafting cooperation interlock height is difficult for separating when receiving the side direction drawing of patterns power, and the reliability is high, and the practicality is strong.
It should be understood that the anti-slip threads 310 may also be provided as linear threads on the side wall of the upper end of the limiting member 3, so as to enhance the lateral force-bearing capacity and facilitate the separation of the product after lateral demolding.
In the lateral core pulling direction, at least one limiting part 3 is arranged.
Specifically, in this embodiment, at least one limiting member 3 is disposed on a plurality of lifter portions 2 corresponding to the fasteners on the panel of the indoor unit of the air conditioner, and the movement direction of each lifter portion 2 corresponds to the corresponding one of the plurality of lifter portions 2.
Like this, product 1 is at the side direction in-process of loosing core, and the atress is stable, can not take place to slide and deflect, and the reliability is high, and the practicality is strong.
It should be understood that, in the above embodiment, the height of the limiting portion 120 in the vertical direction is not too high, and needs to be determined according to the specific structure of the product 1.
The utility model discloses an on the other hand still provides an injection mold, injection mold includes above-mentioned mechanism of loosing core.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.
Claims (10)
1. A core pulling mechanism, comprising: the mould comprises a limiting part (3), one end of the limiting part (3) is connected with a movable mould core (4) in a sliding mode, the other end of the limiting part (3) is matched with the movable mould core (4) and is suitable for limiting parts (120) of a formed product (1), and when the mould is removed, the limiting part (3) is matched with the limiting parts (120) in an inserting mode and is suitable for limiting the displacement of the product (1) in the mould removing direction.
2. The core pulling mechanism according to claim 1, wherein the movable die core (4) is provided with a guide hole (420), and the limiting member (3) is slidably connected with the guide hole (420).
3. The core pulling mechanism according to claim 2, wherein the movable die core (4) is further provided with a forming groove (410), the forming groove (410) is communicated with the guide hole (420), and the forming groove (410) is matched with the limiting member (3) and is suitable for forming the limiting portion (120).
4. The core pulling mechanism as claimed in claim 3, wherein said guide hole (420) communicates with the bottom of said molding groove (410).
5. The core pulling mechanism according to claim 1, wherein the end of the limiting member (3) adapted to form the limiting portion (120) is further provided with an anti-slip thread (310).
6. Core pulling mechanism according to claim 5, characterized in that said anti-slip thread (310) is of a configuration recessed with respect to said stop (3).
7. The core-pulling mechanism according to claim 5, characterized in that said stop (3) is a thimble of said core-pulling mechanism.
8. The core pulling mechanism according to claim 7, wherein the anti-slip pattern (310) is provided on an axial end surface of the thimble.
9. Core pulling mechanism according to claim 1, wherein at least one of said stops (3) is provided in the lateral core pulling direction.
10. An injection mould, characterized in that it comprises a core-pulling mechanism according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920981677.6U CN210791902U (en) | 2019-06-27 | 2019-06-27 | Core pulling mechanism and injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920981677.6U CN210791902U (en) | 2019-06-27 | 2019-06-27 | Core pulling mechanism and injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210791902U true CN210791902U (en) | 2020-06-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920981677.6U Active CN210791902U (en) | 2019-06-27 | 2019-06-27 | Core pulling mechanism and injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210791902U (en) |
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2019
- 2019-06-27 CN CN201920981677.6U patent/CN210791902U/en active Active
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