CN113815201B - Mold stripping structure with two different angles - Google Patents
Mold stripping structure with two different angles Download PDFInfo
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- CN113815201B CN113815201B CN202110897338.1A CN202110897338A CN113815201B CN 113815201 B CN113815201 B CN 113815201B CN 202110897338 A CN202110897338 A CN 202110897338A CN 113815201 B CN113815201 B CN 113815201B
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- Prior art keywords
- ejector
- rod
- block
- plate
- sliding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/44—Removing or ejecting moulded articles for undercut articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/44—Removing or ejecting moulded articles for undercut articles
- B29C2045/445—Removing or ejecting moulded articles for undercut articles using the movable undercut forming element for ejection of the moulded article
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a demolding structure with two different angles, which comprises: the upper die, the upper die fixing plate, the lower die, the first ejector plate of the lower die fixing plate, the second ejector plate, the ejector rod and the moving block. The first ejector plate is provided with a first sliding block in a sliding manner, and an ejector block is arranged in the first ejector plate; a second slider is arranged on the second ejector plate in a sliding manner, a drag hook is arranged at the lower part of the second ejector plate, and the drag hook hooks the ejector block when the ejector block is ejected out; the lower part of the lower die is provided with a limit groove, the moving block is arranged in the limit groove in a sliding way, and the ejector block is retracted when the moving block reaches the top of the limit groove; the lower end of the first inclined rod is fixed on the first sliding block, and the upper end of the first inclined rod is fixed with a first inclined top; the lower end of the second inclined rod is fixed on the second sliding block, and the upper end of the second inclined rod is fixed with a second inclined top. According to the invention, the two inclined jacks are effectively combined through the mechanical structure, so that the two inclined jack dies cannot interfere with each other. The ejection of the ejection rod of the injection molding machine is only needed for a single time in the whole demolding process, so that the production efficiency is ensured, and unnecessary equipment loss is avoided.
Description
Technical Field
The invention relates to a demolding structure, in particular to a demolding structure with two different angles.
Background
The invention is particularly applicable to an injection molded product, and a schematic diagram thereof is shown in fig. 1. The top of product has the inclined plane, then participates in the buckle of constituteing here profile and need to move down to one side and just can the demolding, and product lower part structure needs to match with the panel beating simultaneously, then participates in the buckle of constituteing here profile and need horizontal movement just can the demolding, so, the buckle of two positions profiles need move in two directions when demolding. Generally, utilize the oblique top to make buckle demolding when designing the demolding structure, oblique top and buckle body coupling make the oblique top demolding under the straight line thrust effect of injection molding machine roof rod, but the buckle of this product need move in two directions when demolding, if design two oblique tops and demolding simultaneously, then can necessarily lead to motion interference (as shown in fig. 2), influence the demolding effect, if cut apart the demolding of two oblique tops into two movements completely, then need the injection molding machine roof rod to push out two oblique tops twice, so can reduce production efficiency, increase equipment loss.
Disclosure of Invention
The invention aims to provide a die-stripping structure with two different angles, which effectively combines two inclined jacks (the inclined jacks are integrally connected with the buckle) through a mechanical structure, so that the die-stripping of the two inclined jacks can be completed successively under the condition that a jacking rod of an injection molding machine is ejected once, the two inclined jacks are not interfered with each other when being ejected, the production efficiency is ensured, and unnecessary equipment loss is avoided.
The technical scheme of the invention is as follows:
a snap-in, ejector structure having two different angles, comprising:
an upper die, an upper die fixing plate, a lower die and a lower die fixing plate;
further comprises:
the first ejector plate is positioned above the lower die fixing plate, and a first sliding block is arranged on the first ejector plate in a sliding manner; a jacking block is arranged in the first jacking plate; the first ejector pin plate is provided with an ejector pin hole, and the ejector pin hole penetrates through the first ejector pin plate and the lower die fixing plate;
the second ejector plate is positioned above the first ejector plate, and a second sliding block is arranged on the second ejector plate in a sliding manner; the lower part of the second thimble plate is provided with a draw hook, and the draw hook hooks the ejector block when the ejector block is ejected out;
the ejector rod is arranged at the lower part of the lower die, and can retract the ejector block;
the lower part of the lower die is provided with a limiting groove, the moving block is arranged in the limiting groove in a sliding way, and the top block is retracted when the moving block reaches the top of the limiting groove;
the lower end of the first inclined rod is fixed on the first sliding block, the upper end of the first inclined rod is fixed with a first inclined top, the upper part of the lower die is provided with a first limiting hole, and the first inclined rod is matched in the first limiting hole;
the second inclined rod, second inclined rod lower extreme is fixed on the second slider, and second inclined rod upper end is fixed with the second oblique top, and the second oblique top is located first oblique top, and it has the spacing hole of second to open in the motion piece, and the second inclined rod cooperates in the spacing hole of second.
The buckle of this scheme has the demolding structure of two different angles, goes up mould and lower mould and forms the most profile of product, goes up mould fixed plate and lower mould fixed plate and be used for fixed mould and lower mould respectively, goes up mould and last mould fixed plate and moves away after the product shaping, the die sinking promptly. When the ejector rod is not applied to the ejector block, the ejector block is ejected, and the draw hook hooks the ejector block, so that the second ejector plate drives the first ejector plate to move upwards together. The first inclined rod, the first inclined top, the second inclined rod and the second inclined top move upwards in the stage, and the second limiting hole does not restrict the movement of the second inclined rod because the moving block can slide along the limiting groove, so that the second inclined rod and the second inclined top only move upwards in the stage; because the lower die is fixed, the first limiting hole restrains the movement of the first inclined rod, forces the first inclined rod to move upwards and simultaneously moves horizontally (the sliding direction of the first sliding block), so that the first inclined rod is ejected out of the die. When the motion block reaches the top of the limit groove, the ejector rod enables the ejector block to retract, the second ejector plate is separated from the first ejector plate, the motion of the first ejector plate is stopped, the first oblique ejection die is completed, the second ejector plate continues to move upwards under the action of the ejector rod of the injection molding machine, at the moment, the motion block is blocked in the limit groove and cannot move, the second limit hole constrains the motion of the second oblique rod, the second oblique rod is forced to move upwards and move obliquely downwards (in the sliding direction of the second sliding block), and the second oblique ejection die is enabled to be ejected until the second oblique ejection die is completed.
According to the scheme, the demolding structure is buckled with two demolding structures with different angles, the movement of the first oblique ejector and the second oblique ejector is divided into two stages through the first ejector plate, the second ejector plate, the ejector rod, the ejector block and the drag hook, the first oblique ejector and the second oblique ejector in the first stage move upwards, the stage moving block can slide along the limiting groove, so that the second oblique ejector only moves upwards, and the first oblique ejector is demolding in the stage because the movement of the first oblique rod is constrained by the first limiting hole; the second ejector plate is separated from the first ejector plate in the second stage, the movement of the first ejector plate is stopped, the second ejector plate continues to move upwards, the moving block is clamped in the limiting groove and cannot move at the moment, the second limiting hole restrains the movement of the second inclined rod, and the second inclined ejector is ejected in the second stage. In the first stage, only the first inclined ejection die and the second inclined ejection die are stationary relative to the product, in the second stage, the first inclined ejection die is completed, the second inclined ejection die is completed step by step, and the two inclined ejection dies cannot interfere with each other. The ejection of the ejection rod of the injection molding machine is only needed for a single time in the whole demolding process, so that the production efficiency is ensured, and unnecessary equipment loss is avoided.
The buckle of this scheme has the demolding structure of two different angles, and the product all keeps vertical direction motion under thimble (not shown in the figure) support in whole motion process, makes first oblique top and second oblique top can accomplish the demolding.
Preferably, the parallelism error of the sliding plane of the first sliding block and the product contact surface of the first inclined top is 0.01 mm-0.03 mm. In order to ensure the demolding quality, the product is prevented from being damaged by pulling when the first obliquely ejected mold is ejected, the parallelism error of the sliding plane of the first sliding block and the product contact surface of the first obliquely ejected mold must be strictly controlled, the sliding plane of the first sliding block and the product contact surface of the first obliquely ejected mold are horizontal planes, the processing difficulty is small, and the parallelism precision of the sliding plane of the first sliding block and the product contact surface of the first obliquely ejected mold can be properly higher.
Preferably, the parallelism error of the sliding plane of the second sliding block and the product contact surface of the second inclined top is 0.02-0.03 mm. In order to ensure the demolding quality, the product is prevented from being damaged by pulling during demolding of the second oblique ejector, the parallelism error of the sliding plane of the second sliding block and the product contact surface of the second oblique ejector must be strictly controlled, the sliding plane of the second sliding block and the product contact surface of the second oblique ejector are inclined surfaces, the machining difficulty is high, and the parallelism precision of the second sliding block and the second oblique ejector can be properly lower.
Preferably, the included angle between the axis of the first inclined rod and the horizontal plane is 70-80 degrees, and the included angle between the axis of the second inclined rod and the horizontal plane is 70-80 degrees. The larger the included angle between the axis of the first inclined rod and the horizontal plane is, the smaller the resistance is, the lower the abrasion is, the smaller the included angle between the axis of the first inclined rod and the horizontal plane is, the smaller the vertical displacement of the top rod of the injection molding machine is, the shorter the production period is, the smaller the occupied space is, therefore, the included angle between the axis of the first inclined rod and the horizontal plane should take a proper large value according to the requirement, and the included angle between the axis of the second inclined rod and the horizontal plane is the same as the above.
Preferably, four corners of the horizontal section of the motion block are rounded corners. The assembly of the motion block is facilitated, and the blocking force caused by machining errors when the motion block moves is reduced.
Preferably, an inclined plane is arranged at the lower end of the ejector rod and used for extruding the ejector block. The inclined plane is simple in structure, and is convenient to process and control the movement of the top block.
Preferably, the inclined plane of the lower end of the ejector rod and the horizontal plane form an included angle of 50-70 degrees. The larger the included angle between the inclined plane at the lower end of the ejector rod and the horizontal plane is, the smaller the resistance and the lower the abrasion are when the ejector rod extrudes the ejector block, the smaller the included angle between the inclined plane at the lower end of the ejector rod and the horizontal plane is, the smaller the vertical displacement amount required by the separation of the first ejector plate and the second ejector plate is, so that the included angle between the inclined plane at the lower end of the ejector rod and the horizontal plane is properly taken as required, but the first oblique ejection die is required to be completed when the first ejector plate and the second ejector plate are separated.
Preferably, the contact surfaces of the first inclined top and the second inclined top are inclined surfaces. Therefore, the resistance applied to the first inclined ejection die can be reduced, and the first inclined ejection die is facilitated. It should be appreciated that, in order to facilitate the demolding of the first angled roof, the direction of inclination of the contact surface of the first angled roof and the second angled roof is determined, which would otherwise cause interference with the second angled roof during demolding of the first angled roof.
The beneficial effects of the invention are as follows: the two inclined jacks are effectively combined through the mechanical structure, so that the demolding of the two inclined jacks is divided into two stages, only the first inclined jack demolding is carried out in the first stage, the second inclined jack is static relative to the product, the first inclined jack demolding is completed in the second stage, the second inclined jack demolding is carried out in steps, and the two inclined jack demolding is completed in steps without mutual interference. The ejection of the ejection rod of the injection molding machine is only needed for a single time in the whole demolding process, so that the production efficiency is ensured, and unnecessary equipment loss is avoided.
Drawings
Fig. 1 is a schematic view of the present invention relating to a product.
Fig. 2 is a schematic view of the movement direction of the product fastener when the product fastener is released from the mold.
Fig. 3 is a left side view of the present invention.
Fig. 4 is a cross-sectional view of the A-A plane of fig. 3.
Fig. 5 is a cross-sectional view of the B-B plane in fig. 3.
FIG. 6 is a schematic diagram of the completion of the first tilt head die.
FIG. 7 is a schematic diagram of the completion of the second tilt head die.
In the figure:
an upper die 1;
an upper die fixing plate 2;
a lower die 3;
a lower die fixing plate 4;
a first ejector plate 5;
a first slider 6;
a top block 7;
a top rod hole 8;
a second ejector plate 9;
a second slider 10;
a drag hook 11;
a jack 12;
a motion block 13;
a limit groove 14;
a first diagonal 15;
a first pitched roof 16;
a first limiting hole 17;
a second diagonal bar 18;
a second pitched roof 19;
and a second limiting hole 20.
Detailed Description
For the purpose of making the technical solution embodiment, the technical solution and the advantages of the present invention more apparent, the technical solution of the embodiment of the present invention will be clearly explained and illustrated below with reference to the accompanying drawings, but the following embodiment is only a preferred embodiment of the present invention, not all embodiments. Based on the examples in the implementation manner, other examples obtained by a person skilled in the art without making creative efforts fall within the protection scope of the present invention.
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present solution and are not to be construed as limiting the solution of the present invention.
These and other aspects of embodiments of the invention will be apparent from and elucidated with reference to the description and drawings described hereinafter. In the description and drawings, particular implementations of embodiments of the invention are disclosed in detail as being indicative of some of the ways in which the principles of embodiments of the invention may be employed, but it is understood that the scope of the embodiments of the invention is not limited correspondingly. On the contrary, the embodiments of the invention include all alternatives, modifications and equivalents as may be included within the spirit and scope of the appended claims.
In the description of the present invention, it should be understood that the terms "thickness," "upper," "lower," "horizontal," "top," "bottom," "inner," "outer," "circumferential," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present invention. In the description of the present invention, the meaning of "a plurality" means at least two, for example, two, three, etc., unless explicitly defined otherwise, the meaning of "a number" means one or more.
In the present invention, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, or in communication with one another; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
First embodiment: as shown in fig. 3 to 7, a mold stripping structure with two different angles is snapped, comprising:
an upper die 1, an upper die fixing plate 2, a lower die 3 and a lower die fixing plate 4;
further comprises:
the first ejector plate 5 is positioned above the lower die fixing plate 4, and a first sliding block 6 is arranged on the first ejector plate 5 in a sliding manner; a jacking block 7 is arranged in the first jacking plate 5; the first ejector plate 5 is provided with an ejector rod hole 8, and the ejector rod hole 8 penetrates through the first ejector plate 5 and the lower die fixing plate 4;
the second ejector plate 9 is positioned above the first ejector plate 5, and a second sliding block 10 is arranged on the second ejector plate 9 in a sliding manner; the lower part of the second ejector plate 9 is provided with a draw hook 11, and the draw hook 11 hooks the ejector block 7 when the ejector block 7 is ejected;
the ejector rod 12 is arranged at the lower part of the lower die 3, and the ejector rod 12 can retract the ejector block 7;
the lower part of the lower die 3 is provided with a limiting groove 14, the moving block 13 is arranged in the limiting groove 14 in a sliding manner, and the top block 7 is retracted when the moving block 13 reaches the top of the limiting groove 14;
the lower end of the first inclined rod 15 is fixed on the first sliding block 6, the upper end of the first inclined rod 15 is fixed with a first inclined top 16, the upper part of the lower die 3 is provided with a first limiting hole 17, and the first inclined rod 15 is matched in the first limiting hole 17;
the second inclined rod 18, the second inclined rod 18 lower extreme is fixed on second slider 10, and second inclined rod 18 upper end is fixed with second inclined roof 19, and second inclined roof 19 is located first inclined roof 16 top, and the movable block 13 is interior to open has second spacing hole 20, and second inclined rod 18 fits in second spacing hole 20.
The upper die 1 and the lower die 3 form most molded surfaces of products, the upper die fixing plate 2 and the lower die fixing plate 4 are respectively used for fixing the upper die 1 and the lower die 3, and the upper die 1 and the upper die fixing plate 2 are moved away after the products are molded, namely the dies are opened. When the ejector rod 12 does not act on the ejector block 7, the ejector block 7 is ejected, and the draw hook 11 hooks the ejector block 7, so that the second ejector plate 9 drives the first ejector plate 5 to move upwards together. The first inclined rod 15 and the first inclined top 16, the second inclined rod 18 and the second inclined top 19 all move upwards in the stage, and the second limiting hole 20 does not restrict the movement of the second inclined rod 18 because the moving block 13 can slide along the limiting groove 14, so that the second inclined rod 18 and the second inclined top 19 only move upwards in the stage; since the lower die 3 is fixed, the first limiting hole 17 constrains the movement of the first diagonal rod 15, forcing it to move upward while moving horizontally (the sliding direction of the first slider 6), so that the first diagonal jack 16 is ejected. When the moving block 13 reaches the top of the limiting groove 14, the ejector rod 12 makes the ejector block 7 retract, the second ejector plate 9 is separated from the first ejector plate 5, the movement of the first ejector plate 5 is stopped, the first inclined ejector 16 is ejected, the second ejector plate 9 continues to move upwards under the action of the ejector rod of the injection molding machine, at the moment, the moving block 13 is blocked in the limiting groove 14 and cannot move, the second limiting hole 20 restrains the movement of the second inclined rod 18, forces the second inclined rod 18 to move upwards and move obliquely downwards (in the sliding direction of the second sliding block 10), and the second inclined ejector 19 is ejected until the second inclined ejector 19 is ejected.
According to the demolding structure with two different angles, the movement of the first pitched roof 16 and the second pitched roof 19 is divided into two stages through the first ejector plate 5, the second ejector plate 9, the ejector rod 12, the ejector block 7 and the drag hook 11, the first pitched roof 16 and the second pitched roof 19 in the first stage move upwards, the moving block 13 in the first stage can slide along the limiting groove 14, so that the second pitched roof 19 only moves upwards, and the first pitched roof 16 is demolding in the first stage because the movement of the first pitched rod 15 is constrained by the first limiting hole 17; the second ejector plate 9 is separated from the first ejector plate 5 in the second stage, the movement of the first ejector plate 5 is stopped, the second ejector plate 9 continues to move upwards, at the moment, the moving block 13 is blocked in the limiting groove 14 and cannot move, the second limiting hole 20 restrains the movement of the second inclined rod 18, and the second inclined ejector 19 is ejected in the second stage. In the first stage, only the first inclined top 16 is subjected to demolding, the second inclined top 19 is static relative to the product, in the second stage, the first inclined top 16 is subjected to demolding, the second inclined top 19 is subjected to demolding, and the two inclined top demolding steps are finished without mutual interference. The ejection of the ejection rod of the injection molding machine is only needed for a single time in the whole demolding process, so that the production efficiency is ensured, and unnecessary equipment loss is avoided.
In this embodiment, the mold stripping structure with two different angles is buckled, and the product keeps moving in the vertical direction under the support of the ejector pins (not shown in the figure) in the whole moving process, so that the first inclined top 16 and the second inclined top 19 can finish mold stripping. As shown in fig. 4 and 5, in order to avoid interference during assembly and mold stripping, cavities are formed in the first ejector plate 5, the moving block 13 and the lower mold 3 at necessary positions.
Further, the parallelism error between the sliding plane of the first slider 6 and the product contact surface of the first inclined top 16 is 0.01 mm-0.03 mm. In order to ensure the demolding quality and avoid the damage of products caused by pulling the first pitched roof 16 when demolding, the parallelism error between the sliding plane of the first sliding block 6 and the product contact surface of the first pitched roof 16 must be strictly controlled, the sliding plane of the first sliding block 6 and the product contact surface of the first pitched roof 16 are horizontal planes, the machining difficulty is small, and the parallelism precision of the sliding plane and the product contact surface of the first pitched roof can be properly higher.
Further, the parallelism error between the sliding plane of the second slider 10 and the product contact surface of the second inclined top 19 is 0.02 mm-0.03 mm. In order to ensure the demolding quality and avoid the strain of the product when the second inclined top 19 is demolding, the parallelism error of the sliding plane of the second sliding block 10 and the product contact surface of the second inclined top 19 must be strictly controlled, the sliding plane of the second sliding block 10 and the product contact surface of the second inclined top 19 are inclined surfaces, the processing difficulty is high, and the parallelism precision of the two can be properly lower.
Further, the included angle between the axis of the first inclined rod 15 and the horizontal plane is 70-80 degrees, and the included angle between the axis of the second inclined rod 18 and the horizontal plane is 70-80 degrees. The larger the included angle between the axis of the first inclined rod 15 and the horizontal plane is, the smaller the resistance applied to the first inclined rod 15 during movement is, the lower the abrasion is, the smaller the included angle between the axis of the first inclined rod 15 and the horizontal plane is, the smaller the vertical displacement of the top rod of the injection molding machine is, the shorter the production period is, and the smaller the space occupation is, so that the included angle between the axis of the first inclined rod 15 and the horizontal plane should take a proper large value as required, and the included angle between the axis of the second inclined rod 18 and the horizontal plane is the same as the above.
Further, four corners of the horizontal section of the moving block 13 are rounded corners. This facilitates the assembly of the moving block 13 and reduces the resistance to movement of the moving block 13 due to machining errors.
Further, an inclined plane is arranged at the lower end of the ejector rod 12 and used for extruding the ejector block 7. The inclined plane is simple in structure, and the movement of the top block 7 is convenient to process and control. In other embodiments, an arc surface or a rolling pulley may be disposed at the lower end of the ejector rod 12.
Further, the inclined plane of the lower end of the ejector rod 12 forms an included angle of 50-70 degrees with the horizontal plane. The larger the included angle between the inclined plane at the lower end of the ejector rod 12 and the horizontal plane is, the smaller the resistance is when the ejector rod 12 extrudes the ejector block 7, the lower the abrasion is, the smaller the included angle between the inclined plane at the lower end of the ejector rod 12 and the horizontal plane is, and the smaller the vertical displacement amount required by the separation of the first ejector plate 5 and the second ejector plate 9 is, so that the included angle between the inclined plane at the lower end of the ejector rod 12 and the horizontal plane should be properly taken as required, but the first oblique ejector 16 is required to be ejected when the first ejector plate 5 and the second ejector plate 9 are separated.
Further, the contact surfaces of the first pitched roof 16 and the second pitched roof 19 are inclined surfaces. Therefore, the resistance applied to the first pitched roof 16 during demolding can be reduced, and the demolding of the first pitched roof 16 is facilitated. It should be appreciated that, in order to facilitate the demolding of the first angled roof 16, the direction of inclination of the contact surfaces of the first angled roof 16 and the second angled roof 19 is determined, which would otherwise cause interference with the second angled roof 19 when the first angled roof 16 is demolding, as shown in fig. 4 and 6.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any simple modification, variation and equivalent transformation of the above embodiment according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.
Claims (8)
1. A snap-in, ejector structure having two different angles, comprising:
an upper die (1), an upper die fixing plate (2), a lower die (3) and a lower die fixing plate (4);
it is characterized by also comprising:
the first ejector plate (5), the first ejector plate (5) is located above the lower die fixed plate (4), and a first sliding block (6) is arranged on the first ejector plate (5) in a sliding manner; an ejector block (7) is arranged in the first ejector plate (5); the first ejector pin plate (5) is provided with an ejector pin hole (8), and the ejector pin hole (8) penetrates through the first ejector pin plate (5) and the lower die fixing plate (4);
the second ejector plate (9), the second ejector plate (9) is located above the first ejector plate (5), and a second slider (10) is arranged on the second ejector plate (9) in a sliding manner; the lower part of the second ejector plate (9) is provided with a draw hook (11), when the ejector rod (12) does not act on the ejector block (7), the ejector block (7) is ejected, and the draw hook (11) hooks the ejector block (7);
the ejector rod (12), the ejector rod (12) is arranged at the lower part of the lower die (3);
the lower part of the lower die (3) is provided with a limit groove (14), the motion block (13) is arranged in the limit groove (14) in a sliding way, when the motion block (13) reaches the top of the limit groove (14), the ejector rod (12) enables the ejector block (7) to retract, and the second ejector plate (9) is separated from the first ejector plate (5);
the lower end of the first inclined rod (15) is fixed on the first sliding block (6), a first inclined top (16) is fixed at the upper end of the first inclined rod (15), a first limiting hole (17) is formed in the upper portion of the lower die (3), and the first inclined rod (15) is matched in the first limiting hole (17);
the second inclined rod (18), second inclined rod (18) lower extreme is fixed on second slider (10), and second inclined rod (18) upper end is fixed with second inclined roof (19), and second inclined roof (19) are located first inclined roof (16) top, and open in motion piece (13) has second spacing hole (20), and second inclined rod (18) cooperation is in second spacing hole (20).
2. The demolding structure with two different angles according to claim 1, wherein the parallelism error between the sliding plane of the first slider (6) and the product contact surface of the first oblique top (16) is 0.01 mm-0.03 mm.
3. The demolding structure with two different angles according to claim 1 or 2, characterized in that the parallelism error between the sliding plane of the second slider (10) and the product contact surface of the second oblique top (19) is 0.02 mm-0.03 mm.
4. The demolding structure with two different angles according to claim 1, characterized in that the angle between the axis of the first oblique rod (15) and the horizontal plane is 70-80 degrees, and the angle between the axis of the second oblique rod (18) and the horizontal plane is 70-80 degrees.
5. A snap-in, two-angle ejector structure according to claim 1, characterized in that the corners of the horizontal section of the moving block (13) are rounded.
6. The ejector pin (12) according to claim 1, wherein the lower end of the ejector pin is provided with an inclined surface for extruding the ejector block (7).
7. The demolding structure with two different angles according to claim 6, characterized in that the inclined plane of the lower end of the ejector rod (12) forms an angle of 50-70 degrees with the horizontal plane.
8. A snap-in, two-angle ejector structure according to claim 1, wherein the contact surfaces of the first (16) and second (19) angled roof are bevels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110897338.1A CN113815201B (en) | 2021-08-05 | 2021-08-05 | Mold stripping structure with two different angles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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