CN221540528U - Injection mold convenient to drawing of patterns - Google Patents

Injection mold convenient to drawing of patterns Download PDF

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Publication number
CN221540528U
CN221540528U CN202322929993.8U CN202322929993U CN221540528U CN 221540528 U CN221540528 U CN 221540528U CN 202322929993 U CN202322929993 U CN 202322929993U CN 221540528 U CN221540528 U CN 221540528U
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China
Prior art keywords
mold
core
plate
mounting plate
pulling
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CN202322929993.8U
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Chinese (zh)
Inventor
马朝文
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Dongguan Jiaxing Plastic Hardware Co ltd
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Dongguan Jiaxing Plastic Hardware Co ltd
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Abstract

The utility model discloses an injection mold convenient for demolding, which relates to the technical field of injection molds and comprises an upper mold and a corresponding lower mold, wherein the upper mold and the lower mold are mutually butted to form a mold cavity of a molded product, an upper mold plate and an upper top plate are sequentially arranged above the upper mold, a power piece fixedly arranged on the end face of the upper die is arranged between the upper die plate and the upper top plate, a mounting plate is connected to a telescopic rod of the power piece, the upper die is provided with a first chute which is adapted to the mounting plate, and the mounting plate is in sliding fit with the first chute through a guide post; the mounting plate is provided with a groove, a connecting rod is arranged in the groove, a core-pulling insert is sleeved on the connecting rod in a sliding manner, and the lower end of the core-pulling insert is in butt joint fit with the die cavity through an upper die; the upper die is provided with a second chute which is adapted to the core-pulling insert, and the second chute is obliquely arranged and gradually contracts inwards; the ejector pin is not required to be designed while the efficient demolding is realized, so that the integral structure of the injection mold is greatly simplified.

Description

Injection mold convenient to drawing of patterns
Technical Field
The utility model relates to the technical field of injection molds, in particular to an injection mold convenient to demold.
Background
The mould is used for producing various moulds and tools of the needed products by injection molding, blow molding, extrusion, die casting or forging, smelting, stamping and other methods in industry. In short, a mold is a tool used to make a molded article, which is made up of various parts, with different molds being made up of different parts. The method mainly realizes the processing of the surface of the article through the change of the physical state of the formed material, and has the name of 'industrial mother'. The injection mold is a tool for producing plastic products, and generally consists of an upper mold and a lower mold, wherein the upper mold and the lower mold are closed to form a runner system and a mold cavity of the plastic products during injection molding. During injection molding, the mold is clamped on the injection molding machine, molten plastic is injected into the mold cavity and is cooled and molded in the mold cavity, meanwhile, the molten plastic is cooled in the runner system to form runner system solidification materials, the upper mold and the lower mold are separated after plastic products are molded, the plastic products are ejected out of the mold cavity through the ejection system and leave the mold, finally, the upper mold and the lower mold are closed again to carry out the next injection molding, and the whole injection molding process is circularly carried out.
As shown in FIG. 1, the upper surface of the product is provided with a back-off groove, and the back-off groove is internally provided with a corresponding back-off structure, in the prior art, an injection mold corresponding to the product is generally provided with a corresponding line-position strip back-off insert structure on an upper mold, so that the back-off structure of the product is formed, but in the actual production process, the line-position strip back-off insert structure needs to be withdrawn from a mold cavity first, then the upper mold and a lower mold can carry out mold opening action and corresponding ejection of a thimble, so that the demolding efficiency is influenced by the line-position strip back-off insert structure, and the line-position strip back-off insert structure is reasonably compatible with the thimble, so that the injection mold is complex in structure.
There is a need for an improved solution to the above-mentioned problems.
Disclosure of utility model
The utility model aims to overcome the defects of the prior art and provides a technical scheme capable of solving the problems.
The utility model provides an injection mold convenient to drawing of patterns, includes upper mould and corresponding lower mould, and upper mould and lower mould dock each other and form the die cavity of shaping product, and upper mould's top has set gradually cope match-plate pattern and upper roof, is provided with the power piece that sets firmly on the upper mould terminal surface between cope match-plate pattern and the upper roof, connects the mounting panel on the telescopic link of power piece, and the upper mould has offered the first spout that is adapted to the mounting panel, and the mounting panel passes through guide pillar and first spout sliding fit;
The mounting plate is provided with a groove, a connecting rod is arranged in the groove, a core-pulling insert is sleeved on the connecting rod in a sliding manner, and the lower end of the core-pulling insert is in butt joint fit with the die cavity through an upper die;
The upper die is provided with a second chute which is adapted to the core-pulling insert, and the second chute is obliquely arranged and gradually contracts inwards.
As a further scheme of the utility model: the core-pulling insert comprises a sleeved end sleeved on the connecting rod and a butt end butted with the die cavity;
the sleeving end is provided with a through hole corresponding to the connecting rod, and the length of the sleeving end is smaller than the length of the connecting rod in the groove under vertical projection;
The butt joint end is provided with a profiling back-off structure acting on the product.
As a further scheme of the utility model: the mounting plate is provided with a plurality of groups of core-pulling structures, and each group of core-pulling structures is provided with two core-pulling inserts which are symmetrically arranged.
As a further scheme of the utility model: the mounting panel is including fixed plate and fly leaf, and first spout indent is equipped with step structure, and the fixed plate supports and sets firmly on step structure, and power spare sets firmly in the fixed plate setting, and the telescopic link of power spare passes through fixed plate and fly leaf hookup, and wherein, the fly leaf slides relative fixed plate in first spout through the guide pillar again, and the recess sets up in the fly leaf.
As a further scheme of the utility model: the power piece is a cylinder.
As a further scheme of the utility model: the side of the upper die is provided with a pipeline groove which is communicated with the first sliding groove and corresponds to the power piece.
Compared with the prior art, the utility model has the following beneficial effects:
In the process of die opening, the upper die and the lower die are separated, the core-pulling insert is not separated from a product, so that the product is driven to be separated from the lower die, then the power piece is driven to be an air cylinder, a telescopic rod of the air cylinder drives the mounting plate to slide vertically and downwards in the first sliding groove, the core-pulling insert sleeved on the connecting rod of the mounting plate slides along with the mounting plate and slides along the direction of the obliquely arranged second sliding groove, and the inclined direction of the second sliding groove is gradually inwards contracted, so that the core-pulling insert is gradually inwards contracted in the process of downwards sliding until one end of the core-pulling insert, which is in butt joint with the product, can be separated from the back-off groove of the product, namely the product can be downwards moved for a certain stroke along with the downwards sliding of the core-pulling insert, the end of the core-pulling insert, which is in butt joint with the product, can be separated from the back-off groove of the product, so that the demolding of the product can be realized, and then the core-pulling insert can be taken out in a manual or mechanical arm mode; the core-pulling insert of the injection mold can drive a product to be separated from a lower mold, and simultaneously can slide in a shrinking manner under the driving of the cylinder, so that the separation of the core-pulling insert and the product is realized, the efficient demolding is realized, and meanwhile, a thimble is not required to be designed, so that the integral structure of the injection mold is greatly simplified.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic structural view of a product;
FIG. 2 is a schematic diagram of the structure of the present utility model;
FIG. 3 is a schematic view of the structure of the present utility model with the upper template removed and the upper top plate removed;
FIG. 4 is a schematic view of the core insert of the present utility model;
FIG. 5 is a schematic cross-sectional view of the lower die removed in the present utility model;
Fig. 6 is an enlarged schematic view of the structure at a in fig. 5.
Reference numerals and names in the drawings are as follows:
1. An upper die; 2. a lower die; 3. an upper template; 4. an upper top plate; 5. a power member; 6. a mounting plate; 7. a first chute; 8. a guide post; 9. a groove; 10. a connecting rod; 11. core-pulling inserts; 12. a second chute; 13. a sleeving end; 14. a butt joint end; 15. a through hole; 16. a profiling back-off structure; 17. a fixing plate; 18. a movable plate; 19. a step structure; 20. a pipe line groove; 21. a product; 22. and a back-off groove.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-6, in the embodiment of the utility model, an injection mold convenient for demolding comprises an upper mold 1 and a corresponding lower mold 2, wherein the upper mold 1 and the lower mold 2 are mutually butted to form a mold cavity of a molded product 21, an upper mold plate 3 and an upper top plate 4 are sequentially arranged above the upper mold 1, a power piece 5 fixedly arranged on the end surface of the upper mold 1 is arranged between the upper mold plate 3 and the upper top plate 4, a mounting plate 6 is connected on a telescopic rod of the power piece 5, the upper mold 1 is provided with a first chute 7 which is adapted to the mounting plate 6, and the mounting plate 6 is in sliding fit with the first chute 7 through a guide pillar 8;
The mounting plate 6 is provided with a groove 9, a connecting rod 10 is arranged in the groove 9 of the mounting plate 6, a core-pulling insert 11 is sleeved on the connecting rod 10 in a sliding manner, and the lower end of the core-pulling insert 11 is in butt joint fit with the die cavity through the upper die 1;
the upper die 1 is provided with a second chute 12 adapted to the core-pulling insert 11, and the second chute 12 is obliquely arranged and gradually contracts inwards.
In the technical scheme of the utility model, in the process of opening the die, the upper die 1 is separated from the lower die 2, the core-pulling insert 11 is not separated from the product 21, so that the product 21 is driven to be separated from the lower die 2, then the power piece 5 is driven to be a cylinder, a telescopic rod of the cylinder drives the mounting plate 6 to slide vertically downwards in the first sliding groove 7, the core-pulling insert 11 sleeved on the connecting rod 10 of the mounting plate 6 slides along with the mounting plate 6 and slides along the direction of the obliquely arranged second sliding groove 12, and the core-pulling insert 11 gradually contracts in the downward sliding process due to the gradual inward trend of the oblique direction of the second sliding groove 12 until one end of the core-pulling insert 11 butted with the product 21 can be separated from the back-off groove 22 of the product 21, namely the product 21 can move downwards for a certain stroke along with the downward sliding of the core-pulling insert 11, and one end of the core-pulling insert 11 butted with the product 21 can be separated from the back-off groove 22 of the product 21, so that the product 21 can be taken out in a manual or mechanical arm mode after that; this injection mold insert 11 can drive product 21 separation in lower mould 2, can be simultaneously to be the ground slip of shrinking in the drive of cylinder downwards to realize the separation of mold insert 11 and product 21 of loosing core, when realizing high-efficient drawing of patterns, still need not to design the thimble, simplified the overall structure of this injection mold greatly.
In the embodiment of the utility model, the core-pulling insert 11 comprises a sleeved end 13 sleeved on the connecting rod 10 and a butt end 14 butt-jointed with the die cavity;
The sleeving end 13 is provided with a through hole 15 corresponding to the connecting rod 10, and the length of the sleeving end 13 is smaller than the length of the connecting rod 10 in the groove 9 under vertical projection;
the butt end 14 is provided with a profiled back-off structure 16 which acts on the product 21.
The core-pulling insert 11 forms a back-off structure of a product 21 through the profiling back-off structure 16 on the butt joint end 14, and is clamped with a back-off groove 22 of the product 21 through the profiling back-off structure 16, so that the product 21 is driven to be separated from the lower die 2 in the die opening process, and meanwhile, the profiling back-off structure 16 can be separated from the back-off groove 22 of the product 21 under the driving of the power piece 5, so that the demolding of the product 21 can be realized;
Through the length of cup jointing end 13 is less than the length of connecting rod 10 in recess 9 this setting under vertical projection for connecting rod 10 and core-pulling mold insert 11 are at the downshift in-process, and core-pulling mold insert 11 can slide and not separate with connecting rod 10 relatively, satisfies the slip of core-pulling mold insert 11 indent, and overall design is reasonable.
In the embodiment of the utility model, a plurality of groups of core-pulling structures are arranged on the mounting plate 6, and each group of core-pulling structures is provided with two core-pulling inserts 11 which are symmetrically arranged.
Namely, a plurality of core-pulling inserts 11 are designed according to the characteristics of the product 21, and two core-pulling inserts 11 which are symmetrically arranged can be just abutted against two sides of the back-off groove 22 of the product 21, so that the product 21 can be stably driven to move upwards in the mold opening process.
In the embodiment of the utility model, the mounting plate 6 comprises a fixed plate 17 and a movable plate 18, the first chute 7 is concavely provided with a step structure 19, the fixed plate 17 is supported and fixedly arranged on the step structure 19, the power piece 5 is fixedly arranged on the fixed plate 17, the telescopic rod of the power piece 5 is connected with the movable plate 18 through the fixed plate 17, wherein the movable plate 18 slides relative to the fixed plate 17 in the first chute 7 through the guide post 8, and the groove 9 is arranged on the movable plate 18.
The fixed plate 17 corresponds to a sealing plate of the first sliding groove 7, so that the movable plate 18 can slide in the first sliding groove 7 without being affected by other components, thereby being beneficial to improving the sliding stability of the core-pulling insert 11.
In the embodiment of the utility model, a pipeline groove 20 which is communicated with the first chute 7 and corresponds to the power piece 5 is formed on the side edge of the upper die 1.
Through the setting of pipeline groove 20, be convenient for power piece 5 can be connected with peripheral equipment through pipeline groove 20, also do benefit to this injection mold's clean and tidy simultaneously.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims (6)

1. The injection mold is characterized by comprising an upper mold and a corresponding lower mold, wherein the upper mold and the lower mold are mutually butted to form a mold cavity of a molded product, an upper mold plate and an upper top plate are sequentially arranged above the upper mold, a power piece fixedly arranged on the end face of the upper mold is arranged between the upper mold plate and the upper top plate, a mounting plate is connected to a telescopic rod of the power piece, the upper mold is provided with a first chute adapted to the mounting plate, and the mounting plate is in sliding fit with the first chute through a guide pillar;
The mounting plate is provided with a groove, a connecting rod is arranged in the groove, a core-pulling insert is sleeved on the connecting rod in a sliding manner, and the lower end of the core-pulling insert is in butt joint fit with the die cavity through an upper die;
The upper die is provided with a second chute which is adapted to the core-pulling insert, and the second chute is obliquely arranged and gradually contracts inwards.
2. The injection mold convenient for demolding as claimed in claim 1, wherein the core-pulling insert comprises a sleeve-connecting end sleeved on the connecting rod and a butt-connecting end butt-jointed with the mold cavity;
the sleeving end is provided with a through hole corresponding to the connecting rod, and the length of the sleeving end is smaller than the length of the connecting rod in the groove under vertical projection;
The butt joint end is provided with a profiling back-off structure acting on the product.
3. The injection mold convenient to demolding according to claim 1 or 2, wherein a plurality of groups of core-pulling structures are arranged on the mounting plate, and each group of core-pulling structures is provided with two core-pulling inserts which are symmetrically arranged.
4. The injection mold convenient to demolding according to claim 3, wherein the mounting plate comprises a fixed plate and a movable plate, the first sliding groove is provided with a step structure in a concave manner, the fixed plate is supported and fixedly arranged on the step structure, the power piece is fixedly arranged on the fixed plate, the telescopic rod of the power piece is connected with the movable plate through the fixed plate, the movable plate slides relative to the fixed plate in the first sliding groove through the guide post, and the groove is formed in the movable plate.
5. An injection mold for facilitating mold release according to claim 3, wherein the power member is a cylinder.
6. The injection mold of claim 5, wherein the side of the upper mold is provided with a channel corresponding to the power member and communicating with the first runner.
CN202322929993.8U 2023-10-31 2023-10-31 Injection mold convenient to drawing of patterns Active CN221540528U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322929993.8U CN221540528U (en) 2023-10-31 2023-10-31 Injection mold convenient to drawing of patterns

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322929993.8U CN221540528U (en) 2023-10-31 2023-10-31 Injection mold convenient to drawing of patterns

Publications (1)

Publication Number Publication Date
CN221540528U true CN221540528U (en) 2024-08-16

Family

ID=92256180

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202322929993.8U Active CN221540528U (en) 2023-10-31 2023-10-31 Injection mold convenient to drawing of patterns

Country Status (1)

Country Link
CN (1) CN221540528U (en)

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