CN219686475U

CN219686475U - Forced disengaging mechanism

Info

Publication number: CN219686475U
Application number: CN202320179417.3U
Authority: CN
Inventors: 郑勇乾; 王大镇; 刘力喜; 支建永; 赵建; 翁胜行; 刘运光; 金宝荣; 武博超; 陈喜勇
Original assignee: Zhejiang Hexing Electrician Co ltd
Current assignee: Zhejiang Hexing Electrician Co ltd
Priority date: 2023-01-18
Filing date: 2023-01-18
Publication date: 2023-09-15
Anticipated expiration: 2033-01-18

Abstract

The utility model discloses a forced release mechanism which comprises a die finished product, a first core matched with a movable die, a second core fixed in the movable die plate and a plurality of special-shaped push rods, wherein a cylinder is arranged at the bottom of the die finished product, a back-off is arranged on the cylinder, a chute is arranged on the first core, and a clamping groove matched with the back-off is arranged in the chute; the second core part extends into the sliding groove, an ejection part is arranged at the top of the second core, the ejection part is matched with the sliding groove and the clamping groove to form a first injection molding cavity, and the cylinder and the back-off are positioned in the first injection molding cavity; adjacent special-shaped push rods are positioned on two sides of the first core, and the tops of the special-shaped push rods are propped against the die finished product; in a first state, the special-shaped push rod and the first core drive the finished die to ascend, and the cylinder is separated from the second core; in the second state, the special-shaped push rod drives the finished die to ascend, and the cylinder and the inverted buckle are separated from the first core; the utility model has the characteristics of improving the product quality, preventing structural features from being damaged by strain or losing efficacy and the like.

Description

Forced disengaging mechanism

Technical Field

The utility model relates to a forced disengaging mechanism.

Background

Referring to fig. 1, the mold is a conventional mold product, the mold product is integrally formed by injection molding through an injection molding cavity formed by matching a fixed mold with a movable mold, wherein a cylinder is arranged at the bottom of the conventional mold product, a symmetrical back-off is arranged on the outer side surface of the cylinder, the cylinder and the back-off are matched to form the structural characteristics of the mold product, when the mold product is injected, the mold product is opened, the mold product gives upward thrust to the mold through an ejector rod positioned at an end angle, so that the mold product is integrally separated from the movable mold, and the demolding effect of the mold product is realized.

However, in the actual use process, the mode of directly demolding is adopted, so that the structural characteristics of the pulling damage are easily caused, even if the ejector rod is ejected vertically, the back-off is rubbed with the inner wall of the injection cavity, the back-off is further damaged, the back-off is completely damaged and fails when serious, the product quality is reduced, the production cost is greatly increased, and a strong stripping mechanism which is not easy to damage the product, is convenient to demold and improves the product quality is urgently needed.

Disclosure of Invention

The utility model mainly solves the technical problem of providing a forced disengaging mechanism.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the forced release mechanism comprises a die finished product, a first core matched with the movable die, a second core fixed in the movable die plate and a plurality of special-shaped push rods, wherein a cylinder is arranged at the bottom of the die finished product, a back-off is arranged on the cylinder, a chute is arranged on the first core, and a clamping groove matched with the back-off is arranged in the chute; the second core part extends into the sliding groove, an ejection part is arranged at the top of the second core, the ejection part is matched with the sliding groove and the clamping groove to form a first injection molding cavity, and the cylinder and the back-off are positioned in the first injection molding cavity; adjacent special-shaped push rods are positioned on two sides of the first core, and the tops of the special-shaped push rods are propped against the die finished product; in a first state, the special-shaped push rod and the first core drive the finished die to ascend, and the cylinder is separated from the second core; and in a second state, the special-shaped push rod drives the die finished product to ascend, and the cylinder and the back-off are separated from the first core.

By adopting the structure, the injection molding formation of the back-off is realized through the arrangement of the clamping groove, and the injection molding formation of the structural characteristics of the die finished product, namely the injection molding formation of the cylinder and the back-off, is realized through the arrangement of the first injection molding cavity. After injection molding is finished, the second core is kept still, and the special-shaped push rod and the finished product of the first core with the die rise, so that the cylinder is separated from the second core, and core pulling action is realized; and then the first core is motionless, and the special-shaped push rod continuously rises to separate the cylinder, the back-off and the first core, so that the complete demoulding of the die finished product is realized. Compared with the prior art, the structure is convenient for injection molding of structural features on the finished product of the die, and effectively prevents the back-off from being damaged or invalid in the demolding process, so that the product quality is improved, and the production cost is reduced.

Wherein, the rising distance of the first core is greater than the height of the ejection part.

The limitation of the rising distance of the first core is adopted, so that the cylinder and the second core can be completely separated, and the second core is prevented from affecting the demolding of the structural characteristics of the finished die product.

Wherein, the clamping groove is provided with a guide surface.

Adopt the guide surface setting, played the guide effect, be convenient for the separation of back-off and first core, improved the drawing of patterns effect, prevented that the back-off from being strained or inefficacy.

Wherein, first core bottom is equipped with spacing arch.

The limiting protrusion is adopted, so that the limiting effect is achieved, the first core is effectively prevented from continuing to ascend, and the demolding effect between the inverted buckle and the first core is enhanced.

Wherein, first core top is equipped with symmetrical recess, and dysmorphism push rod top is equipped with the ladder portion, and ladder portion and recess cooperation.

The arrangement of the grooves and the step parts ensures that the matching effect between the special-shaped push rod and the first core is better on one hand, and the fixing effect of the special-shaped push rod on the first core is enhanced; on the other hand has played reset effect, promptly after the mould finished product thoroughly drawing of patterns, special-shaped push rod passes through the step and drives first core reset with the recess cooperation.

Wherein, the cylinder bottom is equipped with U type groove, and U type groove cooperates with ejection portion.

The U-shaped groove is adopted, so that core pulling action is realized on one hand, and the back-off is convenient to separate from the second core; on the other hand, the U-shaped groove is arranged, so that the cylinder has a certain deformation space, separation between the cylinder and the first core is facilitated, and the demolding effect is greatly improved.

And one end of the elastic piece is propped against the bottom of the first core, and the other end of the elastic piece is propped against the movable mould plate.

By adopting the arrangement of the elastic piece, on one hand, when injection molding is completed, upward force is given to the first core, so that the lifting and ejection effects of the first core are realized; on the other hand, after thoroughly demolding, the resetting effect is realized.

And the second core is provided with a limiting part at the bottom, and the limiting part is propped against the movable mould plate.

The limiting part is adopted to achieve the limiting effect, so that the second core can be kept motionless all the time in the demolding process, and the demolding effect between the inverted buckle and the second core is facilitated.

Wherein, dysmorphism push rod top is equipped with positioning groove, positioning groove and mould finished product cooperation.

Adopt the constant head tank setting, the injection moulding that the mould finished product of being convenient for is located dysmorphism push rod top, and then makes the cooperation effect better between mould finished product and the dysmorphism push rod to the ejecting effect of dysmorphism push rod to the mould finished product has been improved.

Drawings

FIG. 1 is a schematic diagram of a prior art mold finish;

FIG. 2 is a schematic structural view of embodiment 1 of the present utility model;

FIG. 3 is a cross-sectional view of embodiment 1 of the present utility model;

fig. 4 is an enlarged view of a portion a in fig. 2;

FIG. 5 is a schematic view showing a partial structure in embodiment 1 of the present utility model;

FIG. 6 is a cross-sectional view of FIG. 5;

fig. 7 is an enlarged view of the portion B in fig. 6;

FIG. 8 is a cross-sectional view of example 1 of the present utility model after the first demolding;

fig. 9 is an enlarged view of a portion C in fig. 8;

FIG. 10 is a cross-sectional view of example 1 of the present utility model after a second demolding;

fig. 11 is an enlarged view of a portion D in fig. 10.

Detailed Description

Examples

Referring to fig. 1, a conventional mold product 1 is shown.

Referring to fig. 2-11, a forced releasing mechanism comprises a die finished product 1, a movable die 2, a movable die plate 3, a first core 4, a second core 5 and a plurality of special-shaped push rods 6.

The die finished product 1 is formed on the movable die 2 in an injection molding way, a cylinder 11 and a back-off 12 are arranged at the bottom of the die finished product 1, the cylinder 11 and the back-off 12 are matched to form the structural characteristics of the die finished product 1, specifically, the whole cylinder 11 is formed by injection molding of a first injection molding cavity 411 formed by matching a sliding groove 41 on the first core 4 with a second core 5, the back-off 12 is formed by injection molding of a clamping groove 42 on the inner wall of the sliding groove 41, namely, when the die finished product 1 is located on the movable die 2 for injection molding, the die finished product 1 is synchronously injection molded to form the cylinder 11 and the back-off 12 through the first injection molding cavity 411 and the clamping groove 42, so that the whole die finished product 1 is integrally injection molded, and the injection molding of the structural characteristics is realized.

Further, a U-shaped groove 13 is formed in the side, facing the second core 5, of the bottom of the cylinder 11, the U-shaped groove 13 is matched with an ejection part 51 on the second core 5, specifically, the U-shaped groove 13 is formed by structural arrangement of the ejection part 51 when the cylinder 11 is located in the first injection cavity 411 for injection molding, and through the structural arrangement, core pulling action is realized on one hand when demolding is carried out, so that the cylinder 11 is conveniently separated from the second core 5; on the other hand through the setting of U type groove 13 for cylinder 11 has certain deformation space, when making cylinder 11 and the separation of first core 4, cylinder 11 inwards takes place elastic deformation, thereby is convenient for back-off 12 deviate from in the draw-in groove 42, has improved the drawing of patterns effect greatly, effectively prevents that back-off 12 is impaired and leads to the structural feature inefficacy of mould finished product 1.

The first core 4 is located the movable mould 2 and slides and set up relative to the movable mould 2, and first core 4 top central authorities are equipped with spout 41, and spout 41 runs through first core 4 whole and with movable mould 2 and movable mould board 3 intercommunication setting, and spout 41 whole is cylinder 11 form, spout 41 and second core 5 adaptation, and second core 5 part stretches into in spout 41, and spout 41 mainly used forms first injection molding chamber 411 with the cooperation of second core 5, first injection molding chamber 411 and cylinder 11 adaptation to the holistic injection molding of cylinder 11 has been realized. Here, the first injection cavity 411 is used for injection molding of the structural feature of the bottom of the mold product 1, that is, injection molding of the cylinder 11, and injection molding of the mold product 1 in the cavity of the movable mold 2 is performed simultaneously.

Further, be equipped with symmetrical draw-in groove 42 on the spout 41 inner wall, draw-in groove 42 is the indent setting, and draw-in groove 42 mainly used back-off 12's injection molding forms to through the cooperation of first injection molding chamber 411 and draw-in groove 42, realized cylinder 11 and back-off 12 complex formation of moulding plastics, realized the structural feature of mould finished product 1.

Further, the cross section of draw-in groove 42 is trapezoidal, is equipped with a plurality of guide surface 421 on the draw-in groove 42, and guide surface 421 is the arc setting, through this kind of structure setting, has played the guide effect, and the separation of the back-off 1211 of being convenient for and first core 4 has improved the drawing of patterns effect, prevents that back-off 1211 from being strained or inefficacy.

The top of the first core 4 is also provided with a plurality of grooves 43, the grooves 43 are respectively arranged on two sides of the top of the first core 4 and symmetrically arranged, the grooves 43 are mainly used for being matched with the step parts 61 on the special-shaped push rod 6, through the arrangement of the structure, on one hand, the fixed matching between the first core 4 and the special-shaped push rod 6 is realized, and on the other hand, the resetting effect of the special-shaped push rod 6 on the first core 4 is realized.

The side of the bottom of the first core 4 is also provided with the limiting protrusion 44, the whole limiting protrusion 44 is rectangular and protrudes towards the movable mould 2, the limiting protrusion 44 mainly plays a limiting role, the first core 4 is effectively prevented from excessively ascending in the demoulding process, and the demoulding effect between the inverted buckle 1211 and the first core 4 is enhanced.

In addition, in the demolding process, the rising distance of the first core 4 is larger than the height of the ejection part 51, namely, in demolding, the first core 4 is clamped and raised by the elastic piece 52 and the special-shaped push rod 6, so that after the cylinder 11 is separated from the ejection part 51 on the second core 5, the first core 4 is fixed, and on one hand, the cylinder 11 and the second core 5 can be completely separated by limiting the rising height, so that the demolding of the structural characteristics of the mold finished product 1 of the second core 5 is prevented from being influenced.

The second core 5 is fixed in the movable mould plate 3, specifically, the bottom of the second core 5 is propped against the bottom of the movable mould plate 3, and the top part of the second core passes through the movable mould plate 3 to extend into the sliding groove 41 for fixing. The second core 5 is mainly used for being matched with the first core 4 so as to realize injection molding of the cylinder 11, specifically, the top of the second core 5 is provided with an ejection part 51, the ejection part 51 is arranged at the center of the top of the second core 5 and protrudes towards the die finished product 1, the ejection part 51 is matched with the chute 41 to form a first injection molding cavity 411, and the cylinder 11 is formed into an integral structure through injection molding of the first injection molding cavity 411.

In addition, in this embodiment, by the arrangement of the ejection portion 51, a U-shaped groove 13 is formed after the bottom of the cylinder 11 is formed, so that a core pulling action between the cylinder 11 and the second core 5 is achieved, and the cylinder 11 also has a certain deformation space.

Further, the second core 5 is further provided with an elastic piece 52 and a limiting part 53, the elastic piece 52 is sleeved on the second core 5 and is positioned in the movable template 3, one end of the elastic piece 52 is propped against the bottom of the first core 4, the other end of the elastic piece is propped against the movable template 3, the elastic piece 52 mainly has an elastic effect and a resetting effect, namely, on one hand, when injection molding is completed, upward force is given to the first core 4, and the ascending ejection effect of the first core 4 is realized; on the other hand, after thoroughly demolding, the resetting effect is realized.

The limiting part 53 is located at the bottom of the second core 5, and the limiting part 53 mainly plays a role in limiting, namely, the limiting part 53 is propped against the bottom of the movable mold plate 3, so that the second core 5 can be kept still all the time in the demolding process, and the demolding effect between the back-off 1211 and the second core 5 is facilitated.

Here, since the number of the special-shaped push rods 6 is two and the overall structures of the two special-shaped push rods 6 are identical, only the specific structure of one of the special-shaped push rods 6 is described in the present embodiment.

The special-shaped push rod 6 is mainly used for pushing out and clamping the die finished product 1 to drive the first core 4, specifically, the special-shaped push rod 6 sequentially passes through the movable die 2 and the movable die plate 3 from top to bottom and stretches out of the movable die plate 3, the special-shaped push rod 6 is fixed on two sides of the first core 4, the top of the special-shaped push rod 6 is coplanar with the top of the movable die 2 and the top of the first core 4, and the top of the special-shaped push rod 6 is propped against the bottom of the die finished product 1.

Further, the top of the special-shaped push rod 6 is provided with a step part 61 and a positioning groove 62, the step part 61 is bent towards the first core 4 to be formed and is in a step shape, the step part 61 is matched with the groove 43, through the structure, on one hand, the matching effect between the special-shaped push rod 6 and the first core 4 is better, and the fixing effect of the special-shaped push rod 6 on the first core 4 is enhanced; on the other hand, the resetting effect is achieved, namely, after the die finished product 1 is thoroughly demoulded, the special-shaped push rod 6 is matched with the groove 43 through the step part 61 to drive the first core 4 to reset.

The positioning groove 62 is arranged towards the die finished product 1, and the positioning groove 62 is mainly used for being matched with the die finished product 1, namely, the positioning groove 62 is matched with a cavity on the movable die 2 and the first injection molding cavity 411, so that integral injection molding of the die finished product 1 is realized, and the matching effect between the die finished product 1 and the special-shaped push rod 6 is better through the arrangement of the positioning groove 62, so that the ejection effect of the special-shaped push rod 6 on the die finished product 1 is improved.

Referring to fig. 4, 6, 8 and 10, in the use process, the integral injection molding of the mold finished product 1 is realized through the cooperation of the cavity on the movable mold 2, the first injection molding cavity 411, the clamping groove 42 and the positioning groove 62, and the formation of structural features on the mold finished product 1 is also realized. After the injection molding is completed, after the movable mold 2 and the movable mold 2 are separated, the first core 4 is clamped by the elastic element 52 and the adjacent special-shaped push rod 6 to drive the finished product 1 of the mold 2 to rise, at this time, the second core 5 is still, and the special-shaped push rod 6 synchronously drives the finished product 1 of the mold 2 to rise, so that the cylinder 11 and the second core 5 perform core pulling action until the cylinder 11 and the second core 5 are separated; after the cylinder 11 is separated from the second core 5, the first core 4 is limited by the limiting protrusion 44, the special-shaped push rod 6 continues to drive the die 2 to ascend, and then the cylinder 11 is elastically concave inwards in a deformation space formed by the U-shaped groove 1313, so that the back-off 12 is convenient to be separated from the clamping groove 42 until the cylinder 11, the back-off 12 and the first core 4 are completely separated, and a complete demolding effect is realized. Finally, after the die finished product 1 is demolded, the special-shaped push rod 6 descends to reset, and the first core 4 is driven to reset through the step part 61.

Therefore, compared with the prior art, the structure is convenient for injection molding of the structural features on the die finished product 1, and effectively prevents the back-off 12 from being damaged or failed in the demolding process, thereby improving the product quality and reducing the production cost.

Claims

1. The utility model provides a take off mechanism by force which characterized in that: the mold comprises a mold finished product, a first core matched with a movable mold, a second core fixed in the movable mold plate and a plurality of special-shaped push rods, wherein a cylinder is arranged at the bottom of the mold finished product, a back-off is arranged on the cylinder, a chute is arranged on the first core, and a clamping groove matched with the back-off is arranged in the chute; the second core part extends into the sliding groove, an ejection part is arranged at the top of the second core, the ejection part is matched with the sliding groove and the clamping groove to form a first injection molding cavity, and the cylinder and the back-off are positioned in the first injection molding cavity; adjacent special-shaped push rods are positioned on two sides of the first core, and the tops of the special-shaped push rods are propped against the die finished product; in a first state, the special-shaped push rod and the first core drive the finished die to ascend, and the cylinder is separated from the second core; and in a second state, the special-shaped push rod drives the die finished product to ascend, and the cylinder and the back-off are separated from the first core.

2. A pull-off mechanism as claimed in claim 1, wherein: the rising distance of the first core is greater than the height of the ejection part.

3. A pull-off mechanism as claimed in claim 2, wherein: the clamping groove is provided with a guide surface.

4. A pull-off mechanism according to claim 3, wherein: the first core bottom is equipped with spacing arch.

5. A pull-off mechanism as claimed in claim 4, wherein: the top of the first core is provided with symmetrical grooves, the top of the special-shaped push rod is provided with a step part, and the step part is matched with the grooves.

6. A pull-off mechanism as claimed in claim 1, wherein: the bottom of the cylinder is provided with a U-shaped groove which is matched with the ejection part.

7. A pull-off mechanism as claimed in claim 6, wherein: an elastic piece is sleeved on the second core, one end of the elastic piece is propped against the bottom of the first core, and the other end of the elastic piece is propped against the movable mould plate.

8. A pull-off mechanism as claimed in claim 7, wherein: and a limiting part is arranged on the bottom of the second core and is propped against the movable template.

9. A pull-off mechanism as claimed in claim 1, wherein: the top of the special-shaped push rod is provided with a positioning groove which is matched with the finished product of the die.