CN212400197U - Back-off demoulding structure and automobile instrument panel injection mold - Google Patents
Back-off demoulding structure and automobile instrument panel injection mold Download PDFInfo
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- CN212400197U CN212400197U CN202021790953.XU CN202021790953U CN212400197U CN 212400197 U CN212400197 U CN 212400197U CN 202021790953 U CN202021790953 U CN 202021790953U CN 212400197 U CN212400197 U CN 212400197U
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Abstract
The utility model provides a back-off demoulding structure and header board injection mold. The back-off demoulding structure comprises a front mould, an inclined top assembly, a rear mould and a positioning assembly. The utility model discloses technical scheme makes locating component's one end and back mould fixed connection through setting up locating component, and locating component's the other end runs through the front mould, and the front mould can slide each other with locating component, consequently, when the back mould was kept away from to the front mould, the front mould relied on locating component to restrict the sliding position of self, prevents that the front mould atress from taking place the skew downwards, when avoiding pushing up the subassembly to one side towards the back mould direction displacement, brim of a hat position atress warp, leads to damaging.
Description
Technical Field
The utility model relates to an injection mold technical field, in particular to back-off demoulding structure and header board injection mold.
Background
The automobile instrument panel is used for supporting equipment and decoration parts required by human-computer interface control, and forms a driving cabin safety system together with other safety parts, and structural parts for protecting drivers and passengers in the automobile are provided, and the strength and the rigidity of the automobile instrument panel are the primary indexes of the performance of the automobile instrument panel.
The automobile instrument panel brim position belongs to the back-off structure in the injection moulding technology, and in the traditional injection moulding scheme, the automobile instrument panel mould is bulky, weight is huge, and the die sinking direction of the automobile instrument panel brim mould is the horizontal direction, and this kind of die sinking leads to the brim position atress to warp easily, leads to damaging.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a back-off demoulding structure and header board injection mold, when aiming at solving the product and breaking away from the mould, lead to brim of a hat position atress to warp, lead to the technical problem of damage.
In order to achieve the above object, the utility model provides a back-off demoulding structure, back-off demoulding structure includes:
the front die is provided with a die cavity;
one end of the inclined top assembly penetrates through the front die and extends to the cavity wall of the die cavity, and the other end of the inclined top assembly is externally connected with a power source;
the rear die is arranged on the front die and covers the die cavity to form an inverted cavity;
one end of the positioning assembly penetrates through the front die, the other end of the positioning assembly is connected with the rear die, and the positioning assembly is connected with the front die in a sliding mode;
when the front die and the rear die are opened in the horizontal direction, the front die and the positioning assembly slide mutually, and the power source drives the pitched roof assembly to move obliquely towards the rear die so as to demould a product in the inverted buckle cavity.
Preferably, the positioning assembly comprises:
one ends of the at least two reset rods penetrate through the front die, and the other ends of the at least two reset rods are connected with the rear die;
the needle plate is arranged at one end of the front die, which is far away from the rear die, the needle plate and the front die are arranged at intervals, and one ends of at least two reset rods, which are far away from the rear die, are connected with the needle plate;
and the nitrogen spring is connected with one end, far away from the rear die, of the needle plate.
Preferably, the positioning assembly comprises:
the limiting mechanism is arranged on the rear die and detachably connected with one end, away from the rear die, of the reset rod, and a through hole is formed in the limiting mechanism;
the stroke piece is arranged at one end, facing the rear die, of the front die, a limiting bulge is arranged at one end, far away from the front die, of the stroke piece, the stroke piece is arranged in the through hole, and the limiting bulge is located outside the limiting mechanism;
when the front die and the rear die are opened in the horizontal direction, the front die drives the stroke piece to be far away from the rear die, and when the limiting protrusion is located behind the through hole, the reset rod stops moving.
Preferably, the one end that the front mould was kept away from to the release link has seted up the breach, stop gear includes:
the fixing piece is arranged on the rear die and provided with the through hole and the clamping groove, the length direction of the clamping groove is perpendicular to that of the through hole, and the notch of the clamping groove faces the reset rod;
the elastic piece is arranged in the clamping groove and is abutted against the bottom of the clamping groove;
the transverse bolt is slidably arranged in the clamping groove, one end of the transverse bolt is abutted against the elastic piece, the other end of the transverse bolt is arranged in the notch, an adjusting hole is further formed in the transverse bolt, the stroke piece is slidably arranged in the adjusting hole, and a gap is reserved between the limiting bulge and one end of the transverse bolt, which is far away from the front die;
when the mold is opened, the front mold is far away from the rear mold, the cross bolt is clamped in the notch, the reset rod is pulled to move towards the direction of the rear mold, when the limiting protrusion is abutted to the wall of the adjusting hole, the needle plate is abutted to the front mold, the elastic piece is compressed under the stress, the cross bolt is separated from the notch, and the reset rod stops moving.
Preferably, the positioning assembly further comprises:
the number one-to-one correspondence of the round cushion blocks and the number of the reset rods is arranged, and the round cushion blocks are arranged at one end, facing the rear die, of the reset rods.
Preferably, the pitched roof assembly comprises:
the straight ejector rod penetrates through the front die;
the oblique ejector rod penetrates through the front die, one end of the oblique ejector rod, which is far away from the rear die, and one end of the straight ejector rod, which is far away from the rear die, are externally connected with the power source, and the straight ejector rod and the oblique ejector rod are arranged at an included angle;
the straight ejector block is arranged at one end, facing the rear die, of the straight ejector rod;
the inclined ejector block is arranged on the straight ejector block in a sliding mode, the inclined ejector block is connected with one end, facing the rear die, of the inclined ejector rod, the sliding direction of the inclined ejector block is perpendicular to the moving direction of the straight ejector block, and the straight ejector block and the inclined ejector block are arranged on the cavity wall of the die cavity;
when the mold is opened, the power source drives the straight ejector rod and the inclined ejector rod to move towards the rear mold, and the inclined ejector block is far away from the cavity wall of the mold cavity relative to the straight ejector block, so that the product in the reverse-buckling mold cavity is demolded.
Preferably, a sliding groove is formed in the needle plate, the length direction of the sliding groove is the same as the sliding direction of the inclined ejector block relative to the straight ejector block, and one end, far away from the rear die, of the inclined ejector rod is arranged in the sliding groove.
Preferably, the pitched roof assembly further comprises:
the two guide blocks are arranged on the needle plate at intervals, and the sliding groove is positioned between the two guide blocks;
and the two sliding blocks are respectively arranged on the peripheral wall of the inclined ejector rod and are respectively connected with the two guide blocks in a sliding manner.
Preferably, a guide groove is formed in the guide block, and the sliding block is slidably arranged in the guide groove.
The utility model also provides an injection mold for automobile instrument board, including above-mentioned arbitrary one back-off demoulding structure, injection mold for automobile instrument board still includes:
a base plate;
the square iron is arranged on the bottom plate, and one end, far away from the front mold, of the rear mold is placed on the bottom plate;
and two ends of the driving assembly are respectively connected with the bottom plate and the rear die, and the driving assembly is used for driving the rear die to be far away from or close to the bottom plate.
The utility model discloses technical scheme makes locating component's one end and back mould fixed connection through setting up locating component, and locating component's the other end runs through the front mould, and the front mould can slide each other with locating component, consequently, when the back mould was kept away from to the front mould, the front mould relied on locating component to restrict the sliding position of self, prevents that the front mould atress from taking place the skew downwards, when avoiding pushing up the subassembly to one side towards the back mould direction displacement, brim of a hat position atress warp, leads to damaging.
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 an embodiment of a back-off demolding structure of the present invention;
FIG. 2 is a schematic structural view of another embodiment of the inverted buckle mold release structure of the present invention;
FIG. 3 is a schematic structural view of another embodiment of the inverted buckle mold release structure of the present invention;
FIG. 4 is a schematic structural view of another embodiment of the inverted buckle mold release structure of the present invention;
fig. 5 is a schematic structural view of a limiting mechanism according to an embodiment of the inverted demoulding structure of the present invention.
The reference numbers illustrate:
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 all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention 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 indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly 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 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 a back-off demoulding structure.
As shown in fig. 1 to 5, the inverted demolding structure includes: the front die 100 is provided with a die cavity A; one end of the pitched roof assembly 10 penetrates through the front mold 100 and extends to the cavity wall of the mold cavity A, and the other end of the pitched roof assembly 10 is externally connected with a power source; a rear mold (not shown) disposed on the front mold 100 and covering the mold cavity a to form a back-off cavity; one end of the positioning component 20 penetrates through the front mold 100, the other end of the positioning component 20 is connected with the rear mold, and the positioning component 20 is connected with the front mold 100 in a sliding manner; when the front mold 100 and the rear mold are opened in the horizontal direction, the front mold 100 and the positioning assembly 20 slide with each other, and the power source drives the lifter assembly 10 to move obliquely towards the rear mold, so that a product in the undercut cavity is released.
In this embodiment, in the injection mold, a mold cavity a in the injection shape of the product is provided on the front mold 100, and after the rear mold and the front mold 100 are mutually covered, the rear mold and the mold cavity a form a back-off mold cavity. And injecting high-pressure and high-temperature injection molding liquid into the reverse-buckling cavity, and cooling the injection molding liquid to form an injection molding product. Because the visor position of the automobile instrument panel belongs to an inverted buckle structure in the injection molding process, and the automobile instrument panel mold has large volume and heavy weight, the mold opening direction of the automobile instrument panel visor mold is the horizontal direction, in order to prevent the front mold 100 and the rear mold from being forced to be dislocated when the front mold 100 and the rear mold are opened, and the front mold 100 and the rear mold are displaced in the gravity direction, one end of the positioning assembly 20 is fixedly connected with the rear mold by arranging the positioning assembly 20, the other end of the positioning assembly 20 penetrates through the front mold 100, and the front mold 100 and the positioning assembly 20 can slide mutually, therefore, when the front mold 100 is far away from the rear mold, the front mold 100 depends on the positioning assembly 20 to limit the sliding position of the front mold 100, for example, when the positioning assembly 20 has a plurality of long rods, one end of the long rods is fixedly connected with the rear mold, the other end penetrates through the front mold 100, so that the, the front mold 100 and the rear mold are guaranteed to be away from or close to each other in the same direction, the long rod can support the front mold 100, the front mold 100 is prevented from being stressed to shift downwards, and the situation that when the inclined top assembly 10 displaces towards the direction of the rear mold, the position of the cap peak is stressed to deform, and damage is caused is avoided.
Specifically, the positioning assembly 20 includes: at least two reset rods 21, wherein one ends of the at least two reset rods 21 penetrate through the front mold 100, and the other ends of the at least two reset rods 21 are connected with the rear mold; the needle plate 22 is arranged at one end of the front mold 100 far away from the rear mold, the needle plate 22 and the front mold 100 are arranged at intervals, and one ends of at least two reset rods 21 far away from the rear mold are connected with the needle plate 22; and the nitrogen spring 23 is connected with one end of the needle plate 22 far away from the rear die. In this embodiment, through setting up two at least release links 21, the one end and the back mould of release link 21 are connected, and the other end then runs through front mould 100, with front mould 100 sliding connection, in order to improve the stability of drawing of patterns, can set up faller 22, and the one end that two at least release links 21 kept away from the back mould is connected with faller 22, and faller 22 is connected with nitrogen spring 23, when front mould 100 and back mould die sinking, nitrogen spring 23 assists release link 21 to the displacement of back mould direction, plays the effect of the synchronous die sinking of reinforcing.
Specifically, the positioning assembly 20 includes: the limiting mechanism 24 is arranged on the rear mold, the limiting mechanism 24 is detachably connected with one end, away from the rear mold, of the reset rod 21, and a through hole B is formed in the limiting mechanism 24; the stroke piece 25 is arranged on one end of the front die 100 facing the rear die, one end of the stroke piece 25 far away from the front die 100 is provided with a limiting protrusion 251, the stroke piece 25 is arranged in the through hole B, and the limiting protrusion 251 is positioned outside the limiting mechanism 24; when the front mold 100 and the rear mold open in the horizontal direction, the front mold 100 drives the stroke piece 25 to be away from the rear mold, and when the limiting protrusion 251 is located behind the through hole B, the reset rod 21 stops moving. In this embodiment, the space between the needle plate 22 and the front mold 100 is set, when the mold is opened, in order to prevent the needle plate 22 from being locked with the front mold 100, the limiting mechanism 24 can be set on the rear mold, the stroke piece 25 is fixed on the front mold 100, the stroke piece 25 is inserted into the through hole B, when the front mold 100 and the rear mold are opened in the horizontal direction, the rear mold drives the limiting mechanism 24 to be away from the front mold 100, because the limiting mechanism 24 is detachably connected with the reset rod 21, the rear mold drives the reset rod 21 to move through the limiting mechanism 24, at this time, the needle plate 22 is stressed to be slowly close to the front mold 100 until being abutted against the front mold 100, at this time, the limiting protrusion 251 is located in the through hole B, the limiting mechanism 24 is separated from the reset rod 21, the reset rod 21 stops moving, and the needle plate.
It will be appreciated that the distance between the stop projection 251 and the stop mechanism 24 may be defined, which may be an optimal distance for demolding to be completed.
Specifically, release link 21 is kept away from the one end of front mould 100 and has been seted up breach C, stop gear 24 includes: the fixing piece 241 is arranged on the rear mold, the fixing piece 241 is provided with the through hole B and a clamping groove D, the length direction of the clamping groove D is perpendicular to that of the through hole B, and a notch of the clamping groove D faces the reset rod 21; the elastic piece 242 is arranged in the clamping groove D, and the elastic piece 242 is abutted against the groove bottom of the clamping groove D; the cross bolt 243 is slidably arranged in the clamping groove D, one end of the cross bolt 243 abuts against the elastic piece 242, the other end of the cross bolt 243 is arranged in the notch C, an adjusting hole E is further formed in the cross bolt 243, the stroke piece 25 is slidably arranged in the adjusting hole E, and a gap is reserved between the limiting protrusion 251 and one end of the cross bolt 243, which is far away from the front mold 100; when the mold is opened, the front mold 100 is far away from the rear mold, the cross bolt 243 is clamped in the notch C and pulls the reset rod 21 to move towards the direction of the rear mold, when the limiting protrusion 251 is abutted to the hole wall of the adjusting hole E, the needle plate 22 is abutted to the front mold 100, the elastic piece 242 is compressed under the stress, the cross bolt 243 is separated from the notch C, and the reset rod 21 stops moving.
In this embodiment, a fixing member 241 is fixedly disposed on the rear mold, a through hole B and a slot D are disposed on the fixing member 241, an axis of the through hole B is perpendicular to a length direction of the slot D, a cross bolt 243 is slidably disposed in the slot D, after the die is closed, one end of the transverse bolt 243, which is far away from the bottom of the clamping groove D, is clamped with the notch C, at the moment, along with the die opening operation of the front die 100 and the rear die, the rear die drags the reset piece synchronously through the transverse bolt 243 and the notch C, the front die 100 is continuously far away from the rear die, and drive stroke piece 25 and keep away from the back mould, make spacing arch 251 slowly be close to and adjust hole E, until spacing arch 251 and the pore wall butt of adjusting hole E, drive horizontal bolt 243 keeps away from release link 21, make elastic component 242 atress compression, until horizontal bolt 243 breaks away from release link 21 completely, make release link 21 stop motion, effectively prevent faller 22 from continuing to move towards front mould 100 direction, avoid blocking with front mould 100.
Specifically, the positioning assembly 20 further includes: the number of the round cushion blocks 26 is one-to-one corresponding to that of the reset rods 21, and the round cushion blocks 26 are arranged at one end, facing the rear mold, of the reset rod 21. In this embodiment, a round pad 26 may be disposed at one end of each reset rod 21 facing the rear mold, so as to prevent the reset rods 21 from being damaged by friction, and the reset rods 21 are utilized to facilitate mold matching adjustment.
Specifically, the lifter assembly 10 includes: the straight ejector rod 11, the said straight ejector rod 11 runs through the said front mould 100; the oblique ejector rod 12 penetrates through the front die 100, one end of the oblique ejector rod 12, which is far away from the rear die, and one end of the straight ejector rod 11, which is far away from the rear die, are both externally connected with the power source, and the straight ejector rod 11 and the oblique ejector rod 12 are arranged at an included angle; the straight ejector block 13 is arranged on one end, facing the rear die, of the straight ejector rod 11; the inclined ejector block 14 is arranged on the straight ejector block 13 in a sliding mode, the inclined ejector block 14 is connected with one end, facing the rear die, of the inclined ejector rod 12, the sliding direction of the inclined ejector block 14 is perpendicular to the moving direction of the straight ejector block 13, and the straight ejector block 13 and the inclined ejector block 14 are both arranged on the cavity wall of the die cavity A; when the mold is opened, the power source drives the straight ejector rod 11 and the inclined ejector rod 12 to move towards the rear mold, and the inclined ejector block 14 is far away from the cavity wall of the mold cavity A relative to the straight ejector block 13, so that the product in the reverse-buckling mold cavity is released.
In this embodiment, the slanted ejecting block 14 is slidably disposed on the straight ejecting block 13, and a cavity with an inverted structure is formed between the surface of the straight ejecting block 13, the surface of the slanted ejecting block 14 and the cavity wall of the cavity a, since the straight top block 13 is displaced toward the rear mold direction, if the sliding direction of the slanted top block 14 is the same as the sliding direction of the straight top block 13, therefore, the angle between the oblique ejector rod 12 and the straight ejector rod 11 is set by using the oblique ejector rod 12, the power source drives the oblique ejector rod 12 to move obliquely toward the rear mold, the oblique drive of the oblique ejector rod 12 is decomposed into a first decomposition force (Fx shown in fig. 3) in the same direction as the displacement direction of the straight ejector rod 11 and a second decomposition force (Fy shown in fig. 3) perpendicular to the displacement direction of the straight ejector rod 11, and the second decomposition force is used to drive the oblique ejector block 14 to be away from the cavity wall of the mold cavity a relative to the straight ejector block 13, thereby realizing the product demolding operation in the reverse-buckling cavity.
It will be appreciated that the power source may be a hydraulic or pneumatic cylinder or the like.
Specifically, a sliding groove F is formed in the needle plate 22, the length direction of the sliding groove F is the same as the sliding direction of the inclined ejector block 14 relative to the straight ejector block 13, and one end of the inclined ejector rod 12, which is far away from the rear mold, is arranged in the sliding groove F. In this embodiment, in order to avoid the interference between the oblique ejector rod 12 and the straight ejector rod 11 and the needle plate 22, a sliding groove F may be formed in the needle plate 22, the length direction of the sliding groove F is the same as the sliding direction of the oblique ejector block 14 relative to the straight ejector block 13, and the length of the sliding groove F is greater than the maximum sliding stroke of the oblique ejector block 14. When the mold is opened, the pin plate 22 is displaced in the direction of the front mold 100, and the lifter 12 is displaced in the direction of the rear mold, so that the lifter 12 is displaced in the longitudinal direction of the slide groove F with respect to the pin plate 22, for example, when the mold is closed, the lifter 12 abuts on one end in the longitudinal direction of the slide groove F, and when the mold is opened, the lifter 12 is gradually displaced in the longitudinal direction of the slide groove F.
Specifically, the pitched roof assembly 10 further includes: the two guide blocks 15 are arranged on the needle plate 22 at intervals, and the sliding groove F is positioned between the two guide blocks 15; the two sliding blocks 16 are respectively arranged on the peripheral wall of the inclined ejector rod 12, and the two sliding blocks 16 are respectively connected with the two guide blocks 15 in a sliding manner. In this embodiment, in order to improve the sliding stability of the lifter bar 12, two guide blocks 15 are provided on the needle plate 22 at intervals, two sliders 16 are fixedly provided on the peripheral wall of the lifter bar 12, and the sliders 16 slide with the guide blocks 15 to restrict the sliding position of the lifter bar 12.
Specifically, a guide groove G is formed in the guide block 15, and the slider 16 is slidably disposed in the guide groove G. As an alternative embodiment, in order to further improve the sliding stability of the lifter bar 12, a guide groove G may be formed in each guide block 15, the slider 16 may be slidably disposed in the guide groove G, and the sliding direction of the lifter bar 12 may be limited by the guide groove G and the slider 16.
The utility model provides an instrument board injection mold (not shown in the figure), including the aforesaid back-off demoulding structure, instrument board injection mold still includes: a base plate (not shown in the figures); a square iron (not shown) disposed on the bottom plate, and an end of the rear mold far from the front mold 100 is placed on the bottom plate; the back-off demoulding structure comprises a base plate, a back mould, a driving component (not shown in the figure), wherein two ends of the driving component are respectively connected with the base plate and the back mould, the driving component is used for driving the back mould to be far away from or close to the base plate, the specific structure of the back-off demoulding structure refers to the embodiment, and the injection mould for the automobile instrument panel at least has all the beneficial effects brought by the technical scheme of the embodiment because all the technical schemes of all the embodiments are adopted, and the detailed description is omitted.
The above only is the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all under the concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.
Claims (10)
1. The utility model provides an inverted demoulding structure which characterized in that, inverted demoulding structure includes:
the front die is provided with a die cavity;
one end of the inclined top assembly penetrates through the front die and extends to the cavity wall of the die cavity, and the other end of the inclined top assembly is externally connected with a power source;
the rear die is arranged on the front die and covers the die cavity to form an inverted cavity;
one end of the positioning assembly penetrates through the front die, the other end of the positioning assembly is connected with the rear die, and the positioning assembly is connected with the front die in a sliding mode;
when the front die and the rear die are opened in the horizontal direction, the front die and the positioning assembly slide mutually, and the power source drives the pitched roof assembly to move obliquely towards the rear die so as to demould a product in the inverted buckle cavity.
2. The inverted demold structure according to claim 1 wherein said positioning assembly comprises:
one ends of the at least two reset rods penetrate through the front die, and the other ends of the at least two reset rods are connected with the rear die;
the needle plate is arranged at one end of the front die, which is far away from the rear die, the needle plate and the front die are arranged at intervals, and one ends of at least two reset rods, which are far away from the rear die, are connected with the needle plate;
and the nitrogen spring is connected with one end, far away from the rear die, of the needle plate.
3. The inverted demold structure according to claim 2 wherein said positioning assembly comprises:
the limiting mechanism is arranged on the rear die and detachably connected with one end, away from the rear die, of the reset rod, and a through hole is formed in the limiting mechanism;
the stroke piece is arranged at one end, facing the rear die, of the front die, a limiting bulge is arranged at one end, far away from the front die, of the stroke piece, the stroke piece is arranged in the through hole, and the limiting bulge is located outside the limiting mechanism;
when the front die and the rear die are opened in the horizontal direction, the front die drives the stroke piece to be far away from the rear die, when the limiting protrusion is located behind the through hole, the limiting mechanism is separated from the reset rod, and the reset rod stops moving.
4. The inverted buckle mold release structure according to claim 3, wherein one end of the release link away from the front mold is notched, and the limiting mechanism comprises:
the fixing piece is arranged on the rear die and provided with the through hole and the clamping groove, the length direction of the clamping groove is perpendicular to that of the through hole, and the notch of the clamping groove faces the reset rod;
the elastic piece is arranged in the clamping groove and is abutted against the bottom of the clamping groove;
the transverse bolt is slidably arranged in the clamping groove, one end of the transverse bolt is abutted against the elastic piece, the other end of the transverse bolt is arranged in the notch, an adjusting hole is further formed in the transverse bolt, the stroke piece is slidably arranged in the adjusting hole, and a gap is reserved between the limiting bulge and one end of the transverse bolt, which is far away from the front die;
when the mold is opened, the front mold is far away from the rear mold, the cross bolt is clamped in the notch, the reset rod is pulled to move towards the direction of the rear mold, when the limiting protrusion is abutted to the wall of the adjusting hole, the needle plate is abutted to the front mold, the elastic piece is compressed under the stress, the cross bolt is separated from the notch, and the reset rod stops moving.
5. The inverted demold structure according to claim 2 wherein said positioning assembly further comprises:
the number one-to-one correspondence of the round cushion blocks and the number of the reset rods is arranged, and the round cushion blocks are arranged at one end, facing the rear die, of the reset rods.
6. The inverted demold structure according to claim 2 wherein said lifter assembly comprises:
the straight ejector rod penetrates through the front die;
the oblique ejector rod penetrates through the front die, one end of the oblique ejector rod, which is far away from the rear die, and one end of the straight ejector rod, which is far away from the rear die, are externally connected with the power source, and the straight ejector rod and the oblique ejector rod are arranged at an included angle;
the straight ejector block is arranged at one end, facing the rear die, of the straight ejector rod;
the inclined ejector block is arranged on the straight ejector block in a sliding mode, the inclined ejector block is connected with one end, facing the rear die, of the inclined ejector rod, the sliding direction of the inclined ejector block is perpendicular to the moving direction of the straight ejector block, and the straight ejector block and the inclined ejector block are arranged on the cavity wall of the die cavity;
when the mold is opened, the power source drives the straight ejector rod and the inclined ejector rod to move towards the rear mold, and the inclined ejector block is far away from the cavity wall of the mold cavity relative to the straight ejector block, so that the product in the reverse-buckling mold cavity is demolded.
7. The inverted buckle stripping structure as claimed in claim 6, wherein the needle plate is provided with a sliding groove, the length direction of the sliding groove is the same as the sliding direction of the inclined ejector block relative to the straight ejector block, and one end of the inclined ejector rod, which is far away from the rear mold, is arranged in the sliding groove.
8. The inverted demold structure according to claim 7 wherein said angle pin assembly further comprises:
the two guide blocks are arranged on the needle plate at intervals, and the sliding groove is positioned between the two guide blocks;
and the two sliding blocks are respectively arranged on the peripheral wall of the inclined ejector rod and are respectively connected with the two guide blocks in a sliding manner.
9. The undercut demold structure according to claim 8 wherein said guide block has a guide slot therein, said slide block being slidably disposed in said guide slot.
10. An injection mold for automobile instrument panels, comprising the undercut releasing structure according to any one of claims 1 to 9, further comprising:
a base plate;
the square iron is arranged on the bottom plate, and one end, far away from the front mold, of the rear mold is placed on the bottom plate;
and two ends of the driving assembly are respectively connected with the bottom plate and the rear die, and the driving assembly is used for driving the rear die to be far away from or close to the bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021790953.XU CN212400197U (en) | 2020-08-24 | 2020-08-24 | Back-off demoulding structure and automobile instrument panel injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021790953.XU CN212400197U (en) | 2020-08-24 | 2020-08-24 | Back-off demoulding structure and automobile instrument panel injection mold |
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| CN212400197U true CN212400197U (en) | 2021-01-26 |
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| CN202021790953.XU Active CN212400197U (en) | 2020-08-24 | 2020-08-24 | Back-off demoulding structure and automobile instrument panel injection mold |
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| Country | Link |
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| CN (1) | CN212400197U (en) |
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