CN216782561U

CN216782561U - Injection mold with back-off demoulding mechanism

Info

Publication number: CN216782561U
Application number: CN202123383546.4U
Authority: CN
Inventors: 邓红卫
Original assignee: Kunshan Ruishengmei Electronic Technology Co ltd
Current assignee: Kunshan Ruishengmei Electronic Technology Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-06-21
Anticipated expiration: 2031-12-30

Abstract

The utility model relates to an injection mold with a back-off demolding mechanism, which is applied to the technical field of injection molds and solves the problems that a product is easy to deform during demolding and difficult to realize mass production, and the injection mold comprises a female mold and a male mold, wherein the female mold is arranged opposite to the female mold, the male mold sequentially comprises a bottom plate, mold feet and a B plate from bottom to top, a rear mold core is arranged in the B plate, a plurality of guide holes are formed in the rear mold core along the length direction of the rear mold core, an inclined top-off back-off demolding assembly is arranged in each guide hole in a sliding manner, each inclined top-off back-off assembly comprises an inclined top module and a baffle plate vertically arranged in the inclined top module, one side surface of the inclined top module is in an inclined plane, at least two hanging lugs are arranged at the upper end of the other side surface of the inclined top module, the at least two hanging lugs are respectively positioned at two sides of the baffle plate, and a top pushing assembly is arranged on the bottom end surface of the inclined top module; the demoulding device has the advantages that demoulding is convenient, and the back-off on a product is not easy to damage during demoulding, so that the quality of the product is improved, and the processing efficiency is improved.

Description

Injection mold with back-off demoulding mechanism

Technical Field

The utility model is applied to the technical field of injection molds, and particularly relates to an injection mold with a back-off demolding mechanism.

Background

An injection mold is a tool for producing plastic products; and is also a tool for giving the plastic product complete structure and accurate dimension. Injection molding is a process used in mass production of some parts having complex shapes. The method specifically comprises the steps of injecting molten plastic into a cavity from an injection molding machine at high pressure, and cooling and solidifying to obtain a formed product.

The existing injection mold has the defects that the processed product is narrow and long, the glue position is thin, the product is easy to deform during demolding, hanging buckles on the product are easy to clamp in hanging lugs on the inclined top module, and the existing injection mold is difficult to demold and cannot be produced in quantity.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an injection mold with a back-off demolding mechanism, which solves the problems that a product is easy to deform during demolding, a hanging buckle on the product is easy to clamp in a hanging lug on an inclined top module, demolding is difficult, and mass production cannot be realized.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the utility model provides an injection mold with a back-off demolding mechanism, which comprises a female mold and a male mold, wherein the male mold is arranged opposite to the female mold, the male mold sequentially comprises a bottom plate, mold feet and a B plate from bottom to top, the female mold sequentially comprises a panel, a push plate and an A plate from top to bottom, the A plate is provided with a front mold core, the panel is provided with an injection port, the bottom end of the injection port extends to the upper end face of the A plate, the B plate is internally provided with a rear mold core, the rear mold core is internally provided with a plurality of guide holes along the length direction of the rear mold core, an inclined top-off back-off mold discharging assembly is arranged in each guide hole in a sliding manner and comprises an inclined top module and a baffle plate vertically arranged in the inclined top module, the top end of the inclined top module and the fixed end of the baffle plate are both level with the upper end face of the rear mold core, and the section shape of the inclined top module is rectangular, the inclined top module is arranged along one side of the length direction of the inclined top module in an inclined plane, at least two hanging lugs are arranged at the upper end of one side of the inclined top module along the length direction of the inclined top module, the at least two hanging lugs are respectively positioned at two sides of the baffle, and the bottom end face of the inclined top module is provided with a pushing assembly for driving the inclined top module to move longitudinally.

Further, the pushing assembly comprises a lower ejector plate, an upper ejector plate and ejector rods, the upper ejector plate and the ejector rods are arranged at the upper end of the lower ejector plate, the number of the mold feet is two, the mold feet are arranged at the two ends of the bottom plate respectively, the lower ejector plate and the upper ejector plate are located between the two mold feet, the bottom end of each ejector rod is fixed to the upper end face of the upper ejector plate, and the upper end of each ejector rod penetrates through the plate B and the bottom end of the inclined ejector module to be fixedly connected.

Further, an included angle between the inclined plane of the step surface and the vertical direction is 4.9-5.1 degrees.

Furthermore, a locking plate is arranged on one side face of the male die and the female die, the top end of the locking plate is fixedly connected with the panel through a bolt, and the bottom plate of the locking plate is also fixedly connected with the plate B through a bolt.

Further, the public mould is provided with the locating part with the another side of master model, the locating part includes spacing piece and lower spacing piece, the bottom of going up the spacing piece is provided with spacing lug, the up end of spacing piece down be provided with spacing lug complex spacing recess, it fixes through the pin to go up the spacing piece on the A board, it fixes also through the pin to go up the spacing piece down on the B board.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

according to the injection mold with the inverted buckle demolding mechanism, the baffle is arranged between the two hanging lugs of the inclined top module, so that demolding of a product is facilitated, and the inverted buckle on the product is not easily damaged during demolding, so that the quality of the product is improved, and the processing efficiency of the product is improved;

furthermore, an included angle between the inclined plane on the pitched roof module and the vertical direction is 5 degrees, and the back-off on the product is conveniently separated from the hanging lug on the pitched roof module within the given included angle of the inclined plane;

further, when the female die and the male die are subjected to die assembly, the limiting convex block is clamped in the limiting groove, so that the male die and the female die are better matched together, and the die assembly precision is improved.

Drawings

Some specific embodiments of the utility model will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 is a front sectional view of an overall structure in an embodiment of the utility model;

FIG. 2 is a schematic view of an assembled structure of a pitched roof module and a baffle in an embodiment of the utility model;

FIG. 3 is a schematic diagram of a product ejection process for a lifter stripper assembly in an embodiment of the present invention;

figure 4 is a cross-sectional view of a stop assembly in an embodiment of the present invention.

Wherein the reference numerals are as follows:

1. a female die; 11. a panel; 12. pushing the plate; 13. a, a plate; 2. a male die; 21. a base plate; 22. a mould leg; 23. b, plate; 3. a front mold core; 4. an injection molding port; 5. a rear mold core; 6. a guide hole; 7. the inclined top tripping component; 71. a pitched roof module; 72. a baffle plate; 73. hanging a lug; 8. a pushing assembly; 81. a lower ejector plate; 82. an upper ejector plate; 83. a top rod; 9. producing a product; 10. reversing; 14. a locking plate; 15. a limiting member; 151. an upper limit block; 152. a lower limiting block; 153. A limiting bump; 154. and a limiting groove.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

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

Referring to fig. 1, 2 and 3, the injection mold with the back-off demoulding mechanism provided by the utility model comprises a female mold 1 and a male mold 2 arranged opposite to the female mold 1, the male mold 2 comprises a bottom plate 21, mold feet 22 and a B plate 23 from bottom to top in sequence, the female mold 1 comprises a panel 11, a push plate 12 and an a plate 13 from top to bottom in sequence, the a plate 13 is provided with a front mold core 3, the panel 11 is provided with an injection port 4, the bottom end of the injection port 4 extends to the upper end face of the a plate 13, the B plate 23 is internally provided with a rear mold core 5, a plurality of guide holes 6 are arranged in the rear mold core 5 along the length direction thereof, an inclined top-off back-off mould component 7 is arranged in the guide holes 6 in a sliding manner, the inclined top-off back-off mould component 7 comprises an inclined top module 71 and a baffle plate 72 vertically arranged in the inclined top module 71, the top end of the inclined top module 71 and the fixed end of the baffle plate 72 are all level with the upper end face of the rear mold core 5, the cross section of the inclined top module 71 is rectangular, one side surface of the inclined top module 71 along the length direction is inclined, the upper end of one side surface of the inclined top module 71 along the length direction is provided with at least two hanging lugs 73, the at least two hanging lugs 73 are respectively positioned on two sides of the baffle 72, when a product is processed by an injection mold, the inverted buckle 10 on the product 9 is conveniently processed through the two hanging lugs 73, the product 9 and the inverted buckle 10 are integrally formed and processed, the processing efficiency is improved, and the structural strength of the product 9 is enhanced; the bottom end face of the inclined top module 71 is provided with a pushing assembly 8 driving the inclined top module to move longitudinally. The pushing assembly 8 comprises a lower ejector plate 81, an upper ejector plate 82 and ejector rods 83, the upper ejector plate 82 and the ejector rods 83 are arranged at the upper end of the lower ejector plate 81, the number of the mold feet 22 is two, the two mold feet are respectively arranged at two ends of the bottom plate 21, the lower ejector plate 81 and the upper ejector plate 82 are located between the two mold feet 22, the bottom end of the ejector rod 83 is fixed on the upper end face of the upper ejector plate 82, and the upper end of the ejector rod 83 penetrates through the B plate 23 and is fixedly connected with the bottom end of the inclined ejector module 71.

Referring to fig. 1, 2 and 3, specifically, after injection molding is performed through the mold, a product to be molded needs to be taken out from the rear mold core 5, since the inverse buckle 10 on the product 9 to be molded is clamped in the lug 73 at the upper end of the inclined ejector module 71, in order to facilitate taking out the product, the lower ejector plate 81 and the upper ejector plate 82 move longitudinally along the height of the male mold 2 under the action of a driving source (not shown in the drawings), so as to drive the ejector rod 83 arranged on the upper ejector plate 82 to move upwards, the inclined ejector module 71 moves in a given inclination direction along the guide hole 6 after being pushed by the ejector rod 83, since the baffle plate 72 is arranged in the inclined ejector module 71, the baffle plate 72 moves vertically upwards against the product 9, so as to separate the inverse buckle 10 on the product 9 from the lug 73 on the inclined ejector module 71, thereby achieving the purpose of demolding; therefore, the baffle plate 72 is arranged between the two hanging lugs 73 of the inclined top module 71, so that the product is convenient to demould, and the reverse buckle 10 on the product 9 is not easy to damage during demoulding, thereby improving the quality of the product.

Further, referring to fig. 1, 2 and 3, an included angle between the inclined plane and the vertical direction on the pitched roof module 71 is 4.9 to 5.1 degrees, the included angle in the present invention is 5 degrees, and the back-off 10 on the product 9 can be conveniently separated from the hanging lug 73 on the pitched roof module 71 within a given inclined plane included angle.

Further, referring to fig. 1, a locking plate 14 is arranged on one side surface of the male mold 2 and the female mold 1, the top end of the locking plate 14 is fixedly connected with the panel 11 through a bolt, the bottom plate of the locking plate 14 is also fixedly connected with the B plate 23 through a bolt, and the male mold 2 and the female mold 1 are fixed through the locking plate 14, so that when the injection mold works, the male mold 2 and the female mold 1 are buckled more firmly, and the phenomenon that the male mold 2 and the female mold 1 are separated under the internal pressure action of the injection mold is prevented.

Further, referring to fig. 1 and 4, a limiting member 15 is disposed on the other side surfaces of the male mold 2 and the female mold 1, the limiting member 15 includes an upper limiting block 151 and a lower limiting block 152, a limiting protrusion 153 is disposed at the bottom end of the upper limiting block 151, a limiting groove 154 matched with the limiting protrusion 153 is disposed on the upper end surface of the lower limiting block 152, the upper limiting block 151 is fixed on the a plate 13 by a pin, and the lower limiting block 152 is also fixed on the B plate 23 by a pin. When the female die 1 and the male die 2 are matched, the limiting bump 153 is clamped in the limiting groove 154, so that the male die 2 and the female die 1 are better matched, and the matching precision is improved.

The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the utility model, and not to limit the scope of the utility model, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.

Claims

1. An injection mold with a back-off demolding mechanism comprises a female mold and a male mold, wherein the female mold is arranged opposite to the female mold, the male mold sequentially comprises a bottom plate, mold feet and a B plate from bottom to top, the female mold sequentially comprises a panel, a push plate and an A plate from top to bottom, a front mold core is arranged on the A plate, an injection port is arranged on the panel, the bottom end of the injection port extends to the upper end face of the A plate, the injection mold is characterized in that a rear mold core is arranged in the B plate, a plurality of guide holes are formed in the rear mold core along the length direction of the rear mold core, an inclined top back-off component is arranged in each guide hole in a sliding mode and comprises an inclined top module and a baffle plate vertically arranged in the inclined top module, the top end of the inclined top module and the fixed end of the baffle plate are both level with the upper end face of the rear mold core, and the section shape of the inclined top module is rectangular, the inclined top module is arranged along one side of the length direction of the inclined top module in an inclined plane, at least two hanging lugs are arranged at the upper end of one side of the inclined top module along the length direction of the inclined top module, the at least two hanging lugs are respectively positioned at two sides of the baffle, and the bottom end face of the inclined top module is provided with a pushing assembly for driving the inclined top module to move longitudinally.

2. The injection mold with the inverted-buckle demolding mechanism as claimed in claim 1, wherein the ejector assembly comprises a lower ejector plate, an upper ejector plate and an ejector rod, the upper ejector plate and the ejector rod are arranged at the upper end of the lower ejector plate, the number of the mold legs is two, the two mold legs are respectively arranged at two ends of the bottom plate, the lower ejector plate and the upper ejector plate are located between the two mold legs, the bottom end of the ejector rod is fixed at the upper end face of the upper ejector plate, and the upper end of the ejector rod penetrates through the plate B and is fixedly connected with the bottom end of the inclined top module.

3. The injection mold with the inverted-buckle demolding mechanism as claimed in claim 1 or 2, wherein an included angle between the inclined surface of the pitched roof module and the vertical direction is 4.9-5.1 °.

4. The injection mold with the inverted demoulding mechanism according to claim 3, wherein a locking plate is arranged on one side of the male mold and one side of the female mold, the top end of the locking plate is fixedly connected with the panel through a bolt, and the bottom plate of the locking plate is also fixedly connected with the B plate through a bolt.

5. The injection mold with the inverted demoulding mechanism according to claim 4, wherein a limiting part is arranged on the other side surfaces of the male mold and the female mold, the limiting part comprises an upper limiting block and a lower limiting block, a limiting lug is arranged at the bottom end of the upper limiting block, a limiting groove matched with the limiting lug is arranged on the upper end surface of the lower limiting block, the upper limiting block is fixed on the A plate through a pin, and the lower limiting block is also fixed on the B plate through a pin.