CN210308890U

CN210308890U - Injection mould

Info

Publication number: CN210308890U
Application number: CN201920840857.2U
Authority: CN
Inventors: 高国利; 贾宇霖; 黄影文; 袁燊喜; 陈敏通
Original assignee: Shenzhen Silver Basis Technology Co Ltd
Current assignee: Shenzhen Silver Basis Technology Co Ltd
Priority date: 2019-06-03
Filing date: 2019-06-03
Publication date: 2020-04-14
Anticipated expiration: 2029-06-03

Abstract

The utility model discloses an injection mold, which comprises a fixed mold, a movable mold, a first ejector block, a plurality of guide pieces and a forming slide block, wherein the movable mold and the fixed mold form a mold cavity; the first ejector block is movably connected with the movable mould; the forming slide block is used for forming the back-off of a product; the guide piece is detachably connected with the movable die, the guide piece is provided with a guide surface extending along the ejection direction of the first ejector block, and the guide surface inclines towards the direction far away from the forming slide block in the ejection direction of the first ejector block; the forming sliding blocks are connected with the first ejection block in a sliding mode to move towards the direction close to the guide surface, are connected with the guide piece in a sliding mode and can slide along the guide surface under the action of the first ejection block. The utility model discloses technical scheme can simplify the injection mold structure to reduce injection mold's cost.

Description

Injection mould

Technical Field

The utility model relates to an injection mold technical field, in particular to injection mold.

Background

In general, many products have a plurality of undercuts or side holes, etc., so that a corresponding core-pulling mechanism is required to be provided on the injection mold. At present, an injection mold is generally provided with a slider structure forming back-off to realize the demolding of a product, and a driving slider generally adopts a nitrogen spring, a spring needle or an oil cylinder structure. But when having a plurality of back-offs or the slider volume is less on the product, each slider all is equipped with a drive structure and can lead to injection mold volume increase, and the structure is more complicated, and then leads to cost greatly increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an injection mold aims at simplifying the injection mold structure to reduce injection mold's cost.

In order to achieve the above object, the utility model provides an injection mold, include:

fixing a mold;

the movable die and the fixed die form a die cavity;

the first ejector block is movably connected with the movable die;

a plurality of forming sliders for forming the reverse buckle of the product; and

the guide piece is detachably connected with the movable die, and is provided with a guide surface extending along the ejection direction of the first ejector block, and the guide surface inclines towards the direction far away from the forming slide block in the ejection direction of the first ejector block;

the forming sliding blocks are connected with the first ejection block in a sliding mode to move towards the direction close to the guide surface, are connected with the guide piece in a sliding mode and can slide along the guide surface under the action of the first ejection block.

Optionally, the first top block is provided with an accommodating groove, and the forming slide block is arranged in the accommodating groove and is in sliding connection with the first top block so as to be capable of sliding towards a direction close to the guide surface.

Optionally, a limiting groove is formed in a groove wall of the accommodating groove, the limiting groove extends towards a direction close to the guide surface, the forming sliding block is provided with a limiting protrusion, and the limiting protrusion is connected with the limiting groove in a sliding mode.

Optionally, two limiting grooves are formed in the groove wall of the accommodating groove, the two limiting grooves are respectively formed in two opposite groove walls of the accommodating groove, and two opposite sides of the forming sliding block are respectively provided with one limiting protrusion.

Optionally, the first top block is further provided with a yielding hole, the yielding hole penetrates through the first top block along the ejection direction of the first top block, the yielding hole is communicated with the accommodating groove, and the guide piece extends into the yielding hole from the movable mold.

Optionally, the guide abuts a bore wall of the relief bore.

Optionally, a slide rail extending in the ejection direction of the first ejector block is arranged on the guide surface, and a sliding groove for slidably connecting the slide rail is arranged on the forming slide block.

Optionally, the slide rail includes a connecting portion and a limiting portion, the connecting portion is connected to the guide member, the limiting portion is connected to the connecting portion and laterally protrudes from the connecting portion, and the limiting portion and the guide surface are spaced apart from each other;

and a limiting convex edge is arranged on the groove wall of the sliding groove and at a position close to the groove opening, and the limiting part is abutted to the surface of the guiding surface deviating from the limiting convex edge.

Optionally, the injection mold comprises a plurality of the guide pieces, and the guide pieces are in one-to-one corresponding sliding connection with the forming slide blocks.

Optionally, the ejection direction of the first ejector block is the same as the mold opening direction of the injection mold.

The utility model discloses technical scheme is through setting up first kicking block on the movable mould, and first kicking block can slide by the relative movable mould, be provided with a plurality of shaping sliders that are used for the shaping product back-off on the first kicking block, can drive a plurality of shaping sliders along the ejecting direction motion of first kicking block during first kicking block motion, and still be fixed with the guide on the movable mould, the guide has the spigot surface that extends along the ejecting direction of first kicking block, and the spigot surface is gone towards the direction slope of keeping away from the shaping slider on the ejecting direction of first kicking block. When the first ejector block moves relative to the movable die, the guide piece is fixed on the movable die, the first ejector block also moves relative to the guide piece, and the plurality of forming slide blocks also move relative to the guide piece. The shaping slider can move towards the direction that is close to the spigot surface relative to first kicking block, and shaping slider still with guide sliding connection to can slide along the spigot surface under the effect of first kicking block, when first kicking block drives the ejecting direction motion of shaping slider along first kicking block promptly, shaping slider still moves towards the direction that is close to the spigot surface relative to first kicking block, so can realize the back-off drawing of patterns on the product. And a plurality of shaping sliders are driven by first kicking block, so compare in the mode that each slider all set up a driving piece, this scheme structure is simpler, can simplify mould overall structure, and then can reduce cost. In addition, because the guide piece is detachably connected with the movable die, the guide piece only needs to be detached and replaced after being worn or damaged, so that other parts such as a core or a movable die plate do not need to be replaced, and the cost of the injection mold can be reduced.

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 described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural view of a first ejector block, a guide member and a forming slide block in an embodiment of the injection mold of the present invention;

FIG. 2 is a schematic structural view of a first top block and a guide member of FIG. 1;

FIG. 3 is a schematic view of the guide of FIG. 1;

FIG. 4 is a schematic structural diagram of the first top block of FIG. 1;

FIG. 5 is a schematic structural view of the shaped slider of FIG. 1;

FIG. 6 is a schematic view of a guide member and a forming shoe of FIG. 1 engaged;

fig. 7 is a schematic structural view of a first ejector block and a push rod in another embodiment of the injection mold of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	First top block	30	Guide member
11	Containing groove	31	Guide surface
				12	Limiting groove	32	Sliding rail
13	Hole of stepping down	321	Connecting part
				20	Molding slider	322	Limiting part
21	Spacing protrusion	40	Push rod
				22	Sliding chute

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides an injection mold.

In an embodiment of the present invention, please refer to fig. 1 to fig. 3 in combination, the injection mold includes:

a stationary mold (not shown);

a movable mold (not shown) forming a mold cavity with the stationary mold;

the first ejector block 10 is movably connected with the movable mould;

a plurality of forming sliders 20 for forming the reverse of the product; and

a guide 30 detachably attached to the movable mold, the guide 30 having a guide surface 31 extending in the ejection direction of the first top block 10, the guide surface 31 being inclined in the ejection direction of the first top block 10 in a direction away from the molding slider 20;

the plurality of forming sliders 20 are slidably connected to the first top block 10 to be capable of moving in a direction close to the guide surface 31, and the forming sliders 20 are further slidably connected to the guide member 30 to be capable of sliding along the guide surface 31 under the action of the first top block 10.

For better explanation, the side where the molding slider 20 is located is referred to as the top side, and the side where the first top block 10 is located is referred to as the bottom side, but when the placement posture of the injection mold is changed, the directional indication between the first top block 10 and the molding slider 20 is changed accordingly.

The injection mold further comprises an ejection mechanism (not shown) connected to the first top block 10 and configured to drive the first top block 10 to move relative to the movable mold. The moving direction of the first ejector block 10 may be the same as the mold opening direction of the injection mold, may be perpendicular to the mold opening direction of the injection mold, may be inclined from the mold opening direction of the injection mold, and the like. In addition, the ejection mechanism may include a push plate and a push rod, the push rod being connected to the first ejector block 10; or the ejection mechanism is an oil cylinder; or the ejection mechanism comprises a motor, a transmission piece and the like. The X direction in fig. 1 refers to the ejection direction of the first top block 10.

The movable mold includes a movable mold plate and a core (not shown) provided on the movable mold plate (not shown), the core being used for molding an inner surface of the product. Wherein, the movable mould plate and the mould core can be arranged integrally or separately, etc. The first top block 10 may be provided on a core or a moving platen. Furthermore, the guide 30 may be provided on the core or the moving platen.

The structure of the guide member 30 is various, for example, in some embodiments, the guide member 30 is provided in a block shape, the guide member 30 is provided with a plurality of guide surfaces 31, and the plurality of forming sliders 20 slide in one-to-one correspondence with the plurality of guide surfaces 31; or the injection mold comprises a plurality of guide members 30, each guide member 30 is provided with a guide surface 31, and the plurality of forming slide blocks 20 are in one-to-one corresponding sliding connection with the plurality of guide members 30; or the injection mold includes a plurality of cylindrical guides 30, the guide surface 31 is a cylindrical surface, the guides 30 are inclined in the ejection direction of the first top block 10 away from the forming shoe 20, and so on.

In addition, the connection manner of the forming shoe 20 and the guide 30 is various, for example, in some embodiments, one of the forming shoe 20 and the guide surface 31 is provided with a slide rail 32, and the other is provided with a slide groove 22; or the guide member 30 is provided with two clamping parts, the two clamping parts are arranged on two opposite sides of the forming slide block 20 and are abutted against the surface of the forming slide block 20 departing from the guide surface 31, so that the forming slide block 20 slides along the guide surface 31 under the driving of the first top block 10; alternatively, two holding portions may be provided on the forming slide 20, the two holding portions are provided on two opposite sides of the forming slide 20 and abut against the surface of the guide 30 away from the guide surface 31, and so on. The forming slide block 20 comprises a slide block body and a forming part arranged on the slide block body, wherein the forming part is used for reversing the formed product, and the forming part is positioned on one side of the slide block body, which is far away from the guide piece 30.

The utility model discloses technical scheme is through setting up first kicking block 10 on the movable mould, and first kicking block 10 can slide by the relative movable mould, be provided with a plurality of shaping sliders 20 that are used for the shaping product back-off on the first kicking block 10, can drive a plurality of shaping sliders 20 along the ejecting direction motion of first kicking block 10 during first kicking block 10 motion, and still be fixed with guide 30 on the movable mould, guide 30 has the spigot surface 31 that extends along the ejecting direction of first kicking block 10, and spigot surface 31 is towards the direction slope of keeping away from shaping slider 20 in the ejecting direction of first kicking block 10. When the first top block 10 moves relative to the movable mold, the guide 30 is fixed to the movable mold, the first top block 10 also moves relative to the guide 30, and the plurality of molding sliders 20 also move relative to the guide 30. The forming slide block 20 can move towards the direction close to the guide surface 31 relative to the first ejector block 10, and the forming slide block 20 is further connected with the guide piece 30 in a sliding manner and can slide along the guide surface 31 under the action of the first ejector block 10, namely, when the first ejector block 10 drives the forming slide block 20 to move along the ejection direction of the first ejector block 10, the forming slide block 20 still moves towards the direction close to the guide surface 31 relative to the first ejector block 10, so that the back-off demoulding on a product can be realized. And a plurality of shaping sliders 20 are driven by first kicking block 10, so compare in the mode that each slider all set up a driving piece, this scheme structure is simpler, can simplify mould overall structure, and then can reduce cost. In addition, because the guide 30 is detachably connected with the movable mold, the guide 30 only needs to be detached and replaced after being worn or damaged, so that other parts such as a core or a movable mold plate do not need to be replaced, and the cost of the injection mold can be reduced.

In this embodiment, please refer to fig. 2 and fig. 4 in combination, the first top block 10 is provided with a receiving groove 11, and the forming slide block 20 is disposed in the receiving groove 11 and slidably connected to the first top block 10 so as to be capable of sliding toward the direction close to the guiding surface 31. Specifically, the receiving groove 11 is provided on a side surface of the first top block 10 facing the cavity and extends toward the guide surface 31, and the molding slider 20 is located in the receiving groove 11 and slidably connected to the first top block 10. It can be understood that, when the forming slide block 20 is disposed in the accommodating groove 11, the forming slide block 20 is slidably connected to the groove wall of the accommodating groove 11, and the groove wall of the accommodating groove 11 has a limiting function and a guiding function for the forming slide block 20, so as to prevent the forming slide block 20 from shifting when sliding relative to the first top block 10 in the direction of the guiding surface 31, and improve the motion stability of the forming slide block 20. In addition, when the forming slide block 20 is arranged in the accommodating groove 11, the forming slide block 20 is partially or completely positioned inside the first top block 10, so that the overall external dimensions of the first top block 10 and the forming slide block 20 can be reduced, that is, the occupied space of the first top block 10 and the forming slide block 20 on the injection mold is reduced, and the mold volume can be reduced. In some embodiments, the accommodating groove 11 may be a circular hole, a square hole or a special-shaped hole extending along a direction close to the guide surface 31; in other embodiments, the receiving groove 11 may also extend along the ejection direction of the first top block 10 and penetrate through the upper end surface of the first top block 10. Further, the guide 30 may be positioned inside the first top block 10 by penetrating the first top block 10, or may be positioned outside the first top block 10.

In this embodiment, referring to fig. 3 to fig. 6, a limiting groove 12 is disposed on a groove wall of the accommodating groove 11, the limiting groove 12 extends toward a direction close to the guide surface 31, the forming slide block 20 is disposed with a limiting protrusion 21, and the limiting protrusion 21 is slidably connected with the limiting groove 12. Specifically, the accommodating groove 11 has two opposite groove side walls extending in the direction close to the guide surface 31 and a groove bottom wall abutting against the lower end of the forming slider 20, the limiting groove 12 is arranged on the groove side wall of the accommodating groove 11, a limiting protrusion 21 is arranged at the position of the forming slider 20 corresponding to the limiting groove 12, and when the forming slider 20 is installed in the accommodating groove 11, the limiting protrusion 21 is located in the limiting groove 12 and can slide in the length direction of the limiting groove 12. The limiting groove 12 and the limiting protrusion 21 are arranged to limit the movement of the forming slide block 20 relative to the first ejector block 10 along the ejection direction of the first ejector block 10, so that the forming slide block 20 is prevented from moving along the ejection direction of the first ejector block 10 and being separated from the first ejector block 10, and the sliding effect of the forming slide block 20 is guaranteed. Wherein, the limiting groove 12 can be arranged on one of the groove side walls, or the limiting groove 12 can be arranged on both side walls. In addition, the limiting protrusion 21 may extend along the length direction of the limiting groove 12 and be in a long strip shape, a square shape, a column shape, or the like. Of course, in other embodiments, the limiting groove 12 may also be disposed on the bottom wall of the receiving groove 11.

Specifically, in this embodiment, two limiting grooves 12 are disposed on the groove wall of the accommodating groove 11, the two limiting grooves 12 are respectively disposed on two opposite groove walls of the accommodating groove 11, and two opposite sides of the forming sliding block 20 are respectively disposed with a limiting protrusion 21. Two spacing grooves 12 are respectively arranged on two groove side walls of the accommodating groove 11, two opposite sides of the forming slide block 20 are respectively provided with a spacing bulge 21, and it can be understood that the two spacing grooves 12 and the two spacing bulges 21 are arranged to ensure that the stress on two sides of the forming slide block 20 is even when the forming slide block slides, so that the sliding effect of the forming slide block 20 can be further improved. Wherein, the two limit grooves 12 can be arranged oppositely or in a staggered way.

In this embodiment, the first top block 10 is further provided with a yielding hole 13, the yielding hole 13 penetrates through the first top block 10 along the ejection direction of the first top block 10, the yielding hole 13 is communicated with the accommodating groove 11, and the guide member 30 extends into the yielding hole 13 from the automatic mold. Specifically, the first top block 10 is slidably connected to the core, the guide 30 is fixed to the core and extends along a direction away from the core, the yielding hole 13 penetrates through the first top block 10 along the direction away from the core, the guide 30 extends into the yielding hole 13 and moves relative to the first top block 10, and the accommodating groove 11 extends towards a direction close to the guide surface 31 and is communicated with the yielding hole 13, so that the guide 30 is slidably connected to the forming slider 20. It can be understood that, compared with the case that the guide member 30 is disposed outside the first top block 10, when the guide member 30 is disposed in the abdicating hole 13, the guide member 30 can be prevented from additionally occupying the installation space of the injection mold, the space utilization rate of the injection mold can be improved, and the structure of the injection mold is more compact.

In this embodiment, the guide 30 abuts against the hole wall of the relief hole 13. Specifically, the guide 30 has a side surface extending in the ejection direction of the first top block 10, and the side surface of the guide 30 abuts against the hole wall of the relief hole 13 to slidably connect the first top block 10 and the guide 30. Like this be equivalent to first kicking block 10 and slide on guide 30, guide 30 can play the guide effect to the motion of first kicking block 10, can make first kicking block 10 motion more stable, can improve the motion effect of first kicking block 10. Wherein, one of the side surfaces of the guide 30 abuts against the hole wall of the abdicating hole 13, or a plurality of side surfaces of the guide 30 abut against the hole wall of the abdicating hole 13. Of course, in other embodiments, the guide 30 may be spaced from the wall of the relief hole 13.

In this embodiment, the guide surface 31 is provided with a slide rail 32 extending along the ejecting direction of the first ejector block 10, and the forming slide block 20 is provided with a slide groove 22 for slidably connecting the slide rail 32. Specifically, the slide rail 32 extends in the longitudinal direction of the guide surface 31, the forming shoe 20 is slidably connected to the guide 30 by the engagement of the slide groove 22 and the slide rail 32, and the forming shoe 20 slides in the longitudinal direction of the slide rail 32. It will be appreciated that the slide rails 32 are capable of limiting the direction of movement of the profiled slide 20 so that the slide can slide along the length of the guide surface 31. And when setting up slide rail 32 and spout 22, can increase the area of contact of shaping slider 20 and guide 30 for the interaction force between shaping slider 20 and the guiding surface 31 is more even, and the slip effect of shaping slider 20 is better. Here, the slide rail 32 may extend along the length direction of the guide surface 31 and have the same length as the guide surface 31, or the length of the slide rail 32 may be shorter than the length of the guide surface 31, and so on. Further, the slide groove 22 may penetrate the molding slider 20 in the ejection direction of the first top block 10, or the length of the slide groove 22 is shorter than the length of the molding slider 20 extending in the ejection direction of the first top block 10. In other embodiments, the guide surface 31 may be provided with a slide groove 22 extending in the ejecting direction of the first ejector block 10, and the forming shoe 20 may be provided with a slide rail 32 slidably connected to the slide groove 22.

In this embodiment, the slide rail 32 includes a connecting portion 321 and a limiting portion 322, the connecting portion 321 is connected to the guide member 30, the limiting portion 322 is connected to the connecting portion 321 and laterally protrudes from the connecting portion 321, and the limiting portion 322 and the guide surface 31 are disposed at an interval. A limiting convex edge (not shown) is arranged on the groove wall of the sliding groove 22 and at a position close to the notch, and the limiting part 322 is abutted with the surface of the limiting convex edge departing from the guide surface 31. Specifically, the slide rail 32 is elongated and extends along the guide surface 31, the connecting portion 321 is provided on the guide surface 31 and connected to the guide 30, and has the same length as the slide rail 32, and the connecting portion 321 has two side walls disposed opposite to each other, and both the side walls are connected to the guide surface 31. The limiting portion 322 is disposed on the sidewall of the connecting portion 321 and protrudes out of the sidewall of the connecting portion 321, and the limiting portion 322 and the guiding surface 31 are arranged at an interval. The side wall of the sliding groove 22 along the length direction thereof is provided with a limit convex edge, and the convex edges of the abutting parts are arranged at intervals with the groove bottom of the sliding groove 22. When the slide rail 32 extends into the slide groove 22, the limiting portion 322 is located between the limiting convex edge and the groove bottom of the slide groove 22, and the surface of the limiting portion 322 facing the guide surface 31 abuts against the surface of the limiting convex edge facing the groove bottom of the slide groove 22. In this way, when the first top block 10 drives the forming slider 20 to move, the stopper portion 322 abuts against the stopper convex edge, so that the forming slider 20 can move in the direction toward the guide surface 31 with respect to the first top block 10, that is, the forming slider 20 can slide obliquely in the longitudinal direction of the guide surface 31 in the direction in which the guide surface 31 is attached to the movable mold. Compared with the mode of arranging two clamping parts on the guide piece 30 or the forming slide block 20, the size of the guide piece 30 can be reduced, the structure of the injection mold can be simplified, and the cost is reduced. The position-limiting portion 322 may be disposed on one of the sidewalls of the connecting portion 321, or the position-limiting portions 322 may be disposed on both sidewalls of the connecting portion 321. In addition, the shape of the slide rail 32 may be various, for example, the cross section of the slide rail 32 perpendicular to the length direction thereof may be "Y", "T", or "cross", and the like.

In this embodiment, referring to fig. 1 and fig. 2 again, the injection mold includes a plurality of guiding members 30, and the plurality of guiding members 30 are in one-to-one corresponding sliding connection with the plurality of forming sliders 20. Specifically, the guide members 30 extend in a direction away from the core to have an elongated shape, and each guide member 30 is provided with a guide surface 31. It can be understood that when a plurality of guide surfaces 31 are provided on a single guide member 30 and a plurality of forming shoes 20 are slidably coupled to a guide member 30, if a portion of one of the guide surfaces 31 of the guide member 30 is damaged, only the entire guide member 30 can be replaced. When a plurality of guide members 30 are provided, if one of the guide members 30 is damaged, only the damaged guide member 30 needs to be replaced, and other guide members 30 which can be normally used do not need to be replaced, so that resource waste can be avoided, and cost can be reduced.

In this embodiment, the guide 30 is an inclined guide post (not shown) and is inclined in a direction away from the forming slider 20 in the ejection direction of the first ejector block 10, the forming slider 20 is provided with a guide hole engaged with the guide 30, and the guide 30 is inserted into the guide hole and slidably connected with the forming slider 20. It can be understood that, compared to the way of providing the slide rail 32 on the guide 30, the slide groove 22 is provided on the forming slide 20 to realize the sliding connection between the forming slide 20 and the guide 30, when the guide 30 is an oblique guide pillar, the structure of the oblique guide pillar is simple, and the process of providing the guide hole on the forming slide 20 is simple, which can reduce the cost. And the formed inclined guide post can be directly adopted or purchased, and only the guide hole on the sliding block 20 is processed and formed according to the diameter of the inclined guide post, so that the processing procedures can be reduced, and the time can be saved.

In this embodiment, the ejection direction of the first ejector block 10 is the same as the mold opening direction of the injection mold. A plurality of shaping sliders 20 all are located the top of first kicking block 10, and the lower extreme of shaping slider 20 and the upper end butt of first kicking block 10, and when ejection mechanism drive first kicking block 10 moved along the die sinking direction of product, first kicking block 10 butt shaping slider 20 for a plurality of shaping sliders 20 and first kicking block 10 moved along injection mold's die sinking direction. And when the forming slide block 20 slides along the guide surface 31 under the action of the first ejector block 10, the forming slide block 20 can move towards the direction of the guide piece 30 relative to the first ejector block 10, namely, the forming slide block 20 is separated from the back-off of the product, and the product can be smoothly demolded.

In this embodiment, referring to fig. 7, the movable mold further includes a push plate (not shown) and a push rod 40 (not shown) connected to the push plate, the push rod 40 is connected to the first ejector block 10, the push plate is capable of moving toward the first ejector block 10, and the push rod 40 is driven to move toward the first ejector block 10. It can be understood that compared with the mode that the first ejector block 10 is driven by an oil cylinder or a motor to move, the structure of the ejector plate and the push rod 40 is simpler, the structure of the die can be simplified, and the cost can be reduced. And can also set up the ejecting ejector pin with the product on the push pedal, so, the push pedal can drive push rod 40 and ejector pin simultaneously for the product breaks away from the core and the shaping slider 20 breaks away from the back-off and can go on simultaneously, can improve production efficiency. The connection mode of the push rod 40 and the first top block 10 has various modes, for example, the push rod 40 may be connected with the first top block 10 through a pin or a key, or the push rod 40 is provided with an external thread, the first top block 10 is provided with a threaded hole, and the push rod 40 extends into the threaded hole to be in threaded connection with the first top block 10, and so on.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. An injection mold, comprising:

fixing a mold;

the movable die and the fixed die form a die cavity;

the first ejector block is movably connected with the movable die;

2. The injection mold of claim 1, wherein the first top block is provided with a receiving groove, and the forming slider is disposed in the receiving groove and slidably connected to the first top block so as to be slidable in a direction close to the guide surface.

3. An injection mold according to claim 2, wherein a limiting groove is provided on a groove wall of the receiving groove, the limiting groove extends in a direction close to the guide surface, and the forming slider is provided with a limiting protrusion slidably coupled with the limiting groove.

4. An injection mold according to claim 3, wherein two of said limiting grooves are formed on the groove wall of said receiving groove, said two limiting grooves are respectively formed on two opposite groove walls of said receiving groove, and said limiting protrusion is respectively formed on two opposite sides of said forming slide.

5. The injection mold according to claim 2, wherein the first top block is further provided with a relief hole, the relief hole penetrates through the first top block along an ejection direction of the first top block, the relief hole is communicated with the accommodating groove, and the guide extends into the relief hole from the movable mold.

6. The injection mold of claim 5, wherein the guide abuts a wall of the relief hole.

7. An injection mold as claimed in any one of claims 1 to 6, wherein the guide surface is provided with a slide rail extending in the ejection direction of the first top block, and the forming slide block is provided with a slide groove for slidably connecting the slide rail.

8. The injection mold of claim 7, wherein the slide rail comprises a connecting portion connected to the guide member and a stopper portion connected to the connecting portion and protruding laterally therefrom, the stopper portion being spaced apart from the guide surface;

9. The injection mold of claim 1, wherein the injection mold comprises a plurality of the guides, the plurality of guides being in one-to-one sliding connection with the plurality of the forming slides.

10. The injection mold of claim 1, wherein the ejection direction of the first top block is the same as the mold opening direction of the injection mold.