CN114434748A

CN114434748A - Injection mould

Info

Publication number: CN114434748A
Application number: CN202011195430.5A
Authority: CN
Inventors: 罗代亮; 鲁韶磊; 张明磊; 刘琴; 王国琪; 张松
Original assignee: Qingdao Hisense Mould Co Ltd
Current assignee: Qingdao Hisense Mould Co Ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2022-05-06
Anticipated expiration: 2040-10-30
Also published as: CN114434748B

Abstract

The invention provides an injection mold, which comprises a front mold and a rear mold, wherein an inclined core-pulling mechanism is arranged on the front mold, the inclined core-pulling mechanism comprises a movable insert, a driving part, an inclined core-pulling guide part and an inclined core-pulling rod, the movable insert can linearly move along the mold opening and closing direction of the injection mold, and a through inclined core-pulling hole is formed in the movable insert; the inclined core pulling guide component is arranged on the front die and is provided with an inclined guide part, one end of the inclined core pulling rod is inserted into the core pulling inclined hole in a matching manner, and the other end of the inclined core pulling rod is in sliding guide fit with the inclined guide part; when the injection mold is opened, the driving part is driven to move in a linkage manner, so that the movement is driven to move linearly to the side of the rear mold, and the inclined core rod is pulled out of the back-off buckle at one time. The problems that in the prior art, the application range of the front mold core-pulling structure of the three-plate mold is narrow, the core-pulling injection period of the front mold driven by the oil cylinder is long, and the injection cost is low are solved.

Description

Injection mould

Technical Field

The invention belongs to the technical field of injection molds, and particularly relates to an injection mold which can realize the back-off extraction of a product by one-time inclined core pulling of a front mold.

Background

In order to meet more functional requirements, various structures or reverse buckles are designed on the current injection molding product, such as a reverse buckle 2 on a product 1 shown in fig. 1. In order to realize the characteristics of the products, various moving structures are required to be designed on the mould to ensure that the products are smoothly demoulded after injection moulding.

The mold structure for realizing the inclined core pulling of the front mold at present often uses two structures, namely a front mold inclined pulling structure driven by a three-plate mold (or a false three-plate mold) and a front mold inclined pulling structure driven by an oil cylinder. However, these two structures have the following disadvantages and shortcomings, respectively:

1. the front mold inclined-drawing structure driven by the three-plate mold is only suitable for the mold with the three-plate mold structure, and the mold needs to be modified by using the structure for the non-three-plate mold, so that the mold cost is additionally increased;

2. the front mold inclined drawing structure driven by the oil cylinder has a wide application range, but the oil cylinder action is added in one step to the mold, the injection molding period is prolonged, the injection molding cost is increased, and the structure is difficult to realize on a part of products limited by some spaces.

Disclosure of Invention

The invention provides an injection mold, which solves the problems that the application range of a front mold core-pulling structure of a three-plate mold in the prior art is narrow, the core-pulling injection period of a front mold driven by an oil cylinder is long, and the injection cost is low.

In some embodiments of this application, an injection mold, includes front mould and back mould, the front mould is including front mould benevolence, back mould is including back mould benevolence, be equipped with the mechanism of loosing core to one side on the front mould, the mechanism of loosing core to one side includes:

the movable insert can linearly move along the mold opening and closing direction of the injection mold, is arranged on the front mold core and forms a product molding space with the rear mold core, and is provided with a through core-pulling inclined hole;

the driving part is used for driving the movable insert to move towards the side of the rear mold in a straight line;

the inclined core pulling guide component is arranged on the front die and is provided with an inclined guide part;

one end of the inclined core pulling rod is inserted into the core pulling inclined hole in a matched mode and matched with the core pulling inclined hole in a sliding and guiding mode, and the other end of the inclined core pulling rod is matched with the inclined guiding portion in a sliding and guiding mode;

when the injection mold is opened, the driving part is driven to move in a linkage manner, so that the movable insert is driven to linearly move towards the side of the rear mold, and the inclined core-pulling rod is pulled out of the reverse buckle at one time.

In some embodiments of the present application, the driving part is a spring, and is clamped between the front mold core and the movable insert, and the front mold is further fixedly provided with a limiting part for limiting the movable insert to be separated from the front mold core when the movable insert linearly moves to the side of the rear mold to a maximum distance.

In some embodiments of the present application, the limiting member is a contour screw, and the driving member is sleeved on the limiting member.

In some embodiments of the present application, the core-pulling mechanism further comprises a guide part for guiding the linear motion of the removable insert; the guide part comprises a guide pillar and a guide sleeve, the guide pillar is fixed on the movable insert, the guide sleeve is fixed on the front mold core, and the guide pillar is in guide fit with the guide sleeve.

In some embodiments of the present application, the inclined core pulling guide component is fixedly arranged on a mold frame of the front mold, the inclined guide part is a T-shaped chute, a protruding part is correspondingly formed on the end part of the inclined core pulling rod, and the protruding part is matched with the T-shaped chute.

In some embodiments of this application, an injection mold, includes front mould and back mould, the front mould is including front mould benevolence, back mould is including back mould benevolence, be equipped with the mechanism of loosing core to one side on the back mould, its characterized in that, the mechanism of loosing core to one side includes:

the movable insert can linearly move along the mold opening and closing direction of the injection mold, is arranged on the rear mold core and forms a product molding space with the front mold core, and is provided with a through core-pulling inclined hole;

the driving part is used for driving the movable insert to linearly move towards the side of the front mold;

the inclined core pulling guide component is arranged on the rear die and is provided with an inclined guide part;

and when the injection mold is ejected out after being opened, the driving part is driven to move in a linkage manner, so that the movable insert is driven to linearly move towards the side of the front mold, and the inclined core pulling rod is pulled out of the back-off part at one time.

In some embodiments of the present application, the driving part is an ejection part of the rear mold, and a limiting part is further fixedly disposed on the rear mold and used for limiting a maximum ejection distance of the driving part.

In some embodiments of the present application, the driving part includes an ejector rod and an ejector plate, one end of the ejector rod is fixedly connected to the movable insert, the other end of the ejector rod is fixedly connected to the ejector plate, and the ejector rod is slidably and guided to cooperate with the mold frame of the rear mold and the rear mold core.

In some embodiments of the present application, the inclined core pulling guide component is fixedly arranged on a mold frame of the rear mold, the inclined guide part is a T-shaped chute, a protruding part is correspondingly formed on the end part of the inclined core pulling rod, and the protruding part is matched with the T-shaped chute.

In some embodiments of this application, the guide part of loosing core to one side can follow injection mold's the mould direction linear motion that opens and shuts, the support component has set firmly on the die holder of back mould, the support component is located the rear side of the guide part of loosing core to one side is used for supporting the guide part of loosing core to one side, be formed with on the liftout plate and dodge the portion of penetrating of support component, be formed with on the guide part's of loosing core to one side rear end and be used for the backstop portion of liftout plate.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a view of a product with an inverted button;

FIG. 2 is a cross-sectional view of a front mold of an injection mold according to a first embodiment in a clamped state;

FIG. 3 is an enlarged view of portion "A" of FIG. 2;

FIG. 4 is a sectional view of a front mold of an injection mold in an open state according to a first embodiment;

FIG. 5 is an enlarged view of portion "B" of FIG. 4;

FIG. 6 is a sectional view of the injection mold according to the second embodiment in a closed state;

FIG. 7 is an enlarged view of portion "C" of FIG. 6;

FIG. 8 is a sectional view of the injection mold according to the second embodiment in an open state;

FIG. 9 is an enlarged view of portion "D" of FIG. 8;

FIG. 10 is a sectional view of the injection mold according to the third embodiment in a mold closed state;

an enlarged view of portion "E" of fig. 11;

FIG. 12 is a sectional view of the injection mold according to the third embodiment in an open state;

an enlarged view of the "F" portion of fig. 13;

fig. 14 is a sectional view of the injection mold according to the third embodiment in a state in which the ejection is continued after the mold is opened.

Reference numerals in fig. 1 to 9: 1-products; 2-reversing;

100-an inclined core-pulling mechanism; 110-a removable insert; 111-inclined core pulling holes; 120-a spring; 130-inclined core pulling guide parts; 131-an inclined guide; 140-inclined core pulling rod; 141-a boss; 150-a guide member; 151-guide posts; 152-guide sleeves;

200-front mould; 210-a front die holder; 220-front mould frame; 230-front mold core; 240-contour screws;

reference numerals in fig. 10 to 14: 1-product; 2-reversing;

100-an inclined core-pulling mechanism; 110-a removable insert; 120-a drive member; 121-ejector pin; 122-ejector plate; 130-inclined core pulling guide parts; 131-inclined guide part; 132-a stop; 140-inclined core pulling rod; 141-a boss;

300-back mold; 310-a rear die holder; 320-mold legs; 330-rear mould frame; 340-rear mold core; 350-a stop member; 360-support member.

Detailed Description

The technical scheme of the invention is clearly and completely described in the following with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example one

Referring to fig. 2 to 5, the injection mold in this embodiment includes a front mold 200 and a rear mold (not shown), the front mold 200 includes a front mold seat 210, a front mold frame 220 and a front mold core 230, the front mold seat 210, the front mold frame 220 and the front mold core 230 are fixedly connected into a whole, the rear mold includes a rear mold seat, mold legs, a rear mold frame and a rear mold core, and the rear mold seat, the mold legs, the rear mold frame and the rear mold core are fixedly connected into a whole.

The front mold 200 is provided with an inclined core-pulling mechanism 100, and the inclined core-pulling mechanism 100 comprises a movable insert 110, a driving part, an inclined core-pulling guide part 130 and an inclined core-pulling rod 140. The movable insert 110 can move linearly along the mold opening and closing direction of the injection mold, the movable insert 110 is arranged on the front mold core 230 and forms a molding space of the product 1 together with the rear mold core, and a through core-pulling inclined hole 111 is formed on the movable insert 110; the driving part is used for driving the movable insert 110 to linearly move towards the side of the rear mold; the inclined core-pulling guide component 130 is arranged on the front die 200, and an inclined guide part 131 is formed on the inclined core-pulling guide component 130; one end of the inclined core pulling rod 140 is inserted into the inclined core pulling hole 111 in a matched manner and is in sliding guide fit with the inclined core pulling hole 111, and the other end of the inclined core pulling rod is in sliding guide fit with the inclined guide part 131; when the injection mold is opened, the driving part is driven to move in a linkage manner, so that the movable insert 110 is driven to move linearly towards the side of the rear mold, and the inclined core-pulling rod 140 is pulled out of the reverse buckle at one time.

In the embodiment, the movable insert in the inclined core-pulling mechanism is arranged on the front mold core and directly participates in the molding of a product, and can drive the inclined core-pulling rod to linearly move towards the rear mold side under the driving of the driving part, so that the inclined core-pulling mechanism is synchronously driven to realize one-time extraction and back-off, so that the inclined core-pulling mechanism in the embodiment has a simple structure and easy realization, does not need to depend on a three-plate mold, and can be used in various mold structures such as a three-plate mold, a two-plate mold, a hot runner mold, a flip-chip mold and the like; compared with the existing oil cylinder driven front mold core pulling structure, the driving force of the driving part is from the mold opening action of the mold, extra power is not needed, and the core pulling time is not needed to be additionally increased, so that the injection molding cost is reduced, the injection molding period is shortened, the number of structural parts is small, the structure is compact, and the occupied space is relatively small.

In this embodiment, the driving part is a spring 120, the spring 120 is clamped between the front mold core 230 and the movable insert 110, and the front mold 200 is further fixedly provided with a limiting part, because when the mold is opened, the movable insert 110 moves linearly to the side of the rear mold under the driving force of the spring 120, if there is no other connecting mechanism between the movable insert 110 and the front mold core 230, the movable insert 110 has a risk of being separated from the front mold core 230. The limiting part in this embodiment is used to limit the movable insert 110 to be separated from the front mold core 230 when the movable insert 110 moves linearly to the side of the rear mold to the maximum distance, so that the movable insert 110 is left on the front mold 200. The limiting part can be a T-shaped limiting block or an equal-height screw, and can be arranged at multiple positions, so that the stress of the movable insert 110 is balanced, in the embodiment, the limiting part is selected to be the equal-height screw 240 and is a standard part, and does not need to be processed separately, and the spring 120 is sleeved on the equal-height screw 240.

Further, the core-pulling mechanism 100 further includes a guide part 150 for guiding the linear motion of the movable insert 110; specifically, referring to fig. 3 and 5, the guiding component 150 includes a guide pillar 151 and a guide sleeve 152, the guide pillar 151 is fixed on the movable insert 110, the guide sleeve 152 is fixed on the front mold core 230, and the guide pillar 151 is in guiding fit with the guide sleeve 152.

Specifically, the inclined core-pulling guide component 130 is fixedly arranged on a mold frame of the front mold 200, that is, on the front mold frame 220, the inclined guide part 131 is a T-shaped inclined groove with a T-shaped cross section, a protruding part 141 is correspondingly formed on the end part of the inclined core-pulling rod 140, and the protruding part 141 is matched with the T-shaped inclined groove, so that the inclined guide part 131 effectively limits the inclined core-pulling rod 140, and the inclined core-pulling rod 140 can only slide along the inclined guide part 131 relative to the inclined core-pulling guide component 130, thereby enabling the inclined core-pulling rod 140 to pull out the inclined core-pulling hole 111 or insert the inclined core-pulling hole 111 relative to the movable mold insert 110.

The working process of the injection mold of the embodiment is as follows:

when the injection mold is in a mold closing state, the movable insert 110 is pressed by the back mold parting surface at an initial position, the spring 120 is in a compressed state, and the inclined core-pulling rod 140 is also in an initial state, refer to fig. 2 and 3;

after injection molding is completed, when the mold is opened, the movable insert 110 moves linearly to the side of the rear mold along with the synchronous movement of the rear mold under the elastic driving action of the spring 120, that is, away from the front mold 200, when the movable insert 110 moves in the direction away from the front mold 200, because one end of the inclined core-pulling rod 140 is in sliding guide fit with the inclined guide part 131 of the inclined core-pulling guide part 130, the inclined core-pulling rod 140 cannot move synchronously along with the movable insert 110, but moves along the inclined guide part 131 in the opposite direction, and then is separated from the back-off part 2 of the product 1, as shown in fig. 4 and 5;

when the movable insert 110 moves to the limit surface of the contour screw 240, the movable insert 110 stops moving, at this time, the inclined core-pulling rod 140 is completely released from the back-off 2, the back mold drives the product 1 to continue the mold opening movement, the movable insert 110 is separated from the back mold, and the movable insert 110 is separated from the product 1;

after the mold is ejected and taken out, the mold starts to be closed, the movable insert 110 starts to be pressed back to the initial state after the parting surface of the rear mold contacts the movable insert 110, the inclined core pulling rod 140 also synchronously returns to the initial state, the movable insert 110 compresses the spring 120 to the initial state, and the next injection molding cycle is started.

Example two

Referring to fig. 6 to 9, the injection mold of the present embodiment also includes a front mold (not shown) and a rear mold 300, the front mold includes a front mold seat, a front mold frame and a front mold core, the front mold seat, the front mold frame and the front mold core are fixedly connected as a whole, the rear mold 300 includes a rear mold seat 310, mold legs 320, a rear mold frame 330 and a rear mold core 340, and the rear mold seat 310, the mold legs 320, the rear mold frame 330 and the rear mold core 340 are fixedly connected as a whole.

Different from the first embodiment, in the present embodiment, the inclined core pulling mechanism 100 is disposed on the rear mold 300, the inclined core pulling mechanism 100 includes a movable insert 110, a driving part 120, an inclined core pulling guide part 130 and an inclined core pulling rod 140, and can move linearly along the mold opening and closing direction of the injection mold, the movable insert 110 is disposed on the rear mold core 340 and forms a product molding space with the front mold core, and a through inclined core pulling hole 111 is formed on the movable insert 110; the driving part 120 is used for driving the movable insert 110 to move linearly towards the side of the front mold; the inclined core pulling guide component 130 is arranged on the rear die 300, and an inclined guide part 131 is formed on the inclined core pulling guide component 130; one end of the inclined core pulling rod 140 is inserted into the inclined core pulling hole 111 in a matching manner and is in sliding guide fit with the inclined core pulling hole 111, and the other end of the inclined core pulling rod is in sliding guide fit with the inclined guide part 131; when the injection mold is ejected after being opened, the driving part 120 is driven to move in a linkage manner, so that the movable insert 110 is driven to move linearly to the front mold side, and the inclined core-pulling rod 140 is pulled out and reversed at one time.

In the embodiment, the movable insert in the inclined core-pulling mechanism is arranged on the rear mold core and directly participates in the molding of a product, the driving of the driving part can drive the linear motion to the front mold side, and the inclined core-pulling rod is synchronously driven to realize one-time extraction and back-off, so that the inclined core-pulling mechanism in the embodiment has a simple structure, is easy to realize, does not need to depend on a secondary mold opening structure, and can be used in various mold structures such as a three-plate mold, a two-plate mold, a hot runner mold, an inverted mold and the like; compared with the rear mold core pulling structure driven by the existing oil cylinder, the rear mold core pulling structure driven by the oil cylinder has the advantages that the driving force of the driving part is from the mold opening ejection action of the mold, extra power is not needed, the core pulling time is not needed to be additionally increased, the injection molding cost is reduced, the injection molding period is shortened, the number of structural parts is small, the structure is compact, and the occupied space is relatively small.

In this embodiment, in order to realize the action of the driving part in linkage driving when the injection mold is ejected after being opened, in this embodiment, the driving part 120 is the ejection part of the rear mold 300, and the driving part 120 is driven to act in linkage driving by the ejection action of the injection molding machine connected to the rear mold base 310 of the rear mold 300, so as to drive the movable insert 110 to act. Meanwhile, the rear mold 300 is further fixedly provided with a limiting part 350 for limiting the maximum ejection distance of the driving part.

Specifically, referring to fig. 6 to 9, in the present embodiment, the driving part 120 includes an ejector rod 121 and an ejector plate 122, one end of the ejector rod 121 is fixedly connected to the movable insert 110, the other end of the ejector rod is fixedly connected to the ejector plate 122, and the ejector rod 122 is slidably guided and engaged with the mold frame of the rear mold 300, i.e., the rear mold frame 330 and the rear mold core 340. The ejector plate 122 is located in an ejection stroke space defined by the mold legs 320, the rear mold frame 330 and the rear mold base 310, and is connected with an ejection power part of the injection molding machine during ejection, and the ejector rod 121 sequentially passes through the rear mold frame 330 and the rear mold core 340 and then is connected with the movable mold insert 110. The limiting member 350 is located on the front side of the ejector plate 122, and may be a block member fixed to the rear mold frame 330 by screws, and located in the ejection stroke space defined by the mold legs 320, the rear mold frame 330, and the rear mold base 310.

In this embodiment, the inclined core-pulling guide component 130 is fixedly arranged on the rear mold frame 133, the inclined guide portion 131 is a T-shaped chute, a protruding portion 141 is correspondingly formed on an end portion of the inclined core-pulling rod 140, and the protruding portion 141 is adapted to the T-shaped chute, so that the inclined guide portion 131 effectively limits the inclined core-pulling rod 140, and the inclined core-pulling rod 140 can only slide along the inclined guide portion 131 relative to the inclined core-pulling guide component 130, thereby enabling the inclined core-pulling rod 140 to extract the inclined core-pulling hole 111 or insert the inclined core-pulling hole 111 relative to the movable insert 110.

The working process of the injection mold of the embodiment is as follows:

when the injection mold is in a mold closing state, the movable insert 110 is pulled back by an ejection system of the injection molding machine or pulled back and pressed at an initial position by a return spring system of the ejection plate 122, the driving part 120 is at the initial position, and the inclined drawing core rod 140 is also at the initial state, referring to fig. 6 and 7;

after the mold opening of the mold is completed, the injection molding machine starts to eject, the ejector rod 122 drives the ejector rod 121 to perform the ejection action, so as to synchronously drive the movable insert 110 to linearly move towards the side of the front mold, i.e. to be away from the rear mold 300, when the movable insert 110 moves towards the direction away from the rear mold 300, because one end of the inclined core-pulling rod 140 is in sliding guiding fit with the inclined guiding part 131 of the inclined core-pulling guiding part 130, the inclined core-pulling rod 140 cannot synchronously move along with the movable insert 110, but moves along the inclined guiding part 131 towards the opposite direction, so as to be separated from the back-off part 2 of the product 1, see fig. 6 and 7;

when the ejector plate 122 moves to the position of the limiting part 350, the injection molding machine stops ejecting, at this time, the inclined core bar 140 is completely released from the back-off part 2, and the product 1 can be taken out;

the injection molding machine is ejected and returned, the ejector plate 122 is reset, the movable insert 110 and the inclined core bar 140 are driven to reset to the initial state, and the next injection molding cycle is started.

EXAMPLE III

For the case of a large ejection distance of the product, that is, when the inclined core bar 140 is separated from the undercut 2 of the product 1 along with the ejection motion of the product, the product 1 is not yet completely ejected along with the movable insert 110, and the injection molding machine needs to continue the ejection motion. In order to prevent the inclined core pulling rod 140 from being separated from the inclined core pulling guide component 130 along with the continuous ejection of the injection molding machine, referring to fig. 10 to 14, in this embodiment, the inclined core pulling guide component 130 may linearly move along the mold opening and closing direction of the injection mold, specifically, the inclined core pulling guide component 130 passes through the rear mold frame 330 and is in sliding guide fit with the rear mold frame 330, the rear mold base 310 is fixedly provided with a support component 360, the support component 360 is located at the rear side of the inclined core pulling guide component 130 and is used for supporting the inclined core pulling guide component 130, the ejector plate 122 is formed with a through portion 123 avoiding the support component 360 so as to be in contact with and support the inclined core pulling guide component 130, and the rear end of the inclined core pulling guide component 130 is formed with a stopper portion 132 for stopping the ejector plate 122.

The working process of the injection mold of the embodiment is as follows:

when the injection mold is in a mold closing state, the movable insert 110 is pulled back by an ejection system of the injection molding machine or pulled back and pressed at an initial position by a return spring system of the ejection plate 122, the driving part 120 is at the initial position, and the inclined drawing core rod 140 is also at the initial state, referring to fig. 10 and 11;

after the mold opening of the mold is completed, the injection molding machine starts to eject, the ejector rod 122 drives the ejector rod 121 to perform the ejection action, so as to synchronously drive the movable insert 110 to linearly move towards the side of the front mold, i.e. away from the rear mold 300, when the movable insert 110 moves towards the direction away from the rear mold 300, because one end of the inclined core-pulling rod 140 is in sliding guiding fit with the inclined guiding part 131 of the inclined core-pulling guiding part 130, the inclined core-pulling rod 140 cannot synchronously move along with the movable insert 110, but moves along the inclined guiding part 131 towards the opposite direction, so as to be separated from the back-off part 2 of the product 1, see fig. 12 and 13;

when the ejector plate 122 moves to the position of the stopping portion 132 of the inclined core-pulling guide component 130, the inclined core-pulling rod 140 is completely released from the back-off 2 of the product 1, meanwhile, the ejector plate 122 continues to eject to drive the inclined core-pulling guide component 130, the inclined core-pulling rod 140 and the movable insert 110 to move synchronously, the inclined core-pulling rod 140 and the inclined core-pulling guide component 130 are relatively static (to prevent the inclined core-pulling rod 140 from separating from the inclined core-pulling guide component 130), when the ejector plate 122 moves to the position of the limiting component 350, the injection molding machine stops ejecting, and the product can be taken;

The inclined core pulling guide component 130 is set to linearly move along the mold opening and closing direction of the injection mold, so that the inclined core pulling guide component 130 can float, the supporting component 360 is fixedly arranged on the rear side of the inclined core pulling guide component 130 and used for supporting the inclined core pulling guide component 130, when the inclined core pulling rod 140 is driven to perform core pulling through ejecting action, the inclined core pulling guide component 130 is not in contact with the ejector plate 122, the inclined core pulling guide component 130 is static and motionless, the supporting component 360 is in guiding fit with the ejector plate 122, and the ejector plate 122 and the ejector rod 121 drive the movable insert 110 to further drive the inclined core pulling rod 140 to perform inclined core pulling. After the inclined core pulling is completed, the ejector plate 122 continues to perform the ejection action, so as to drive the inclined core pulling guide component 130, the inclined core pulling rod 140 and the movable insert 110 to move synchronously, and the inclined core pulling rod 140 and the inclined core pulling guide component 130 are relatively static, so that the inclined core pulling rod 140 is prevented from being separated from the inclined core pulling guide component 130.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides an injection mold, includes front mould and back mould, the front mould is including front mould benevolence, back mould is including back mould benevolence, be equipped with the mechanism of loosing core to one side on the front mould, its characterized in that, the mechanism of loosing core to one side includes:

2. An injection mold according to claim 1,

the driving part is a spring and is clamped between the front mold core and the movable insert, and a limiting part is fixedly arranged on the front mold and is used for limiting the movable insert to be separated from the front mold core when the movable insert moves linearly to the side of the rear mold to the maximum distance.

3. An injection mold according to claim 2,

the limiting part is an equal-height screw, and the driving part is sleeved on the limiting part.

4. An injection mold according to claim 2,

the inclined core-pulling mechanism also comprises a guide part for guiding the linear motion of the movable insert; the guide part comprises a guide pillar and a guide sleeve, the guide pillar is fixed on the movable insert, the guide sleeve is fixed on the front mold core, and the guide pillar is in guide fit with the guide sleeve.

5. An injection mold according to claim 1,

the inclined core pulling guide component is fixedly arranged on a die frame of the front die, the inclined guide part is a T-shaped chute, a protruding part is correspondingly formed on the end part of the inclined core pulling rod, and the protruding part is matched with the T-shaped chute.

6. The utility model provides an injection mold, includes front mould and back mould, the front mould is including front mould benevolence, back mould is including back mould benevolence, be equipped with the mechanism of loosing core to one side on the back mould, its characterized in that, the mechanism of loosing core to one side includes:

7. An injection mold according to claim 6,

the driving part is an ejection part of the rear die, and a limiting part is fixedly arranged on the rear die and used for limiting the maximum ejection distance of the driving part.

8. An injection mold according to claim 7,

the driving part comprises an ejector rod and an ejector plate, one end of the ejector rod is fixedly connected with the movable insert, the other end of the ejector rod is fixedly connected with the ejector plate, and the ejector rod is matched with the die frame of the rear die and the rear die core in a sliding guide manner.

9. An injection mold according to claim 8,

the inclined core pulling guide component is fixedly arranged on a die frame of the rear die, the inclined guide part is a T-shaped chute, a protruding part is correspondingly formed on the end part of the inclined core pulling rod, and the protruding part is matched with the T-shaped chute.

10. An injection mold according to claim 8,

the mould opening and closing direction linear motion of the injection mould can be followed to the guide part of loosing core to one side, the support component has set firmly on the die holder of back mould, the support component is located the rear side of the guide part of loosing core to one side is used for supporting the guide part of loosing core to one side, be formed with on the ejector plate and dodge the through portion of support component, be formed with on the rear end of the guide part of loosing core to one side and be used for the backstop portion of ejector plate.