CN111531823A - Core-pulling structure die - Google Patents
Core-pulling structure die Download PDFInfo
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- CN111531823A CN111531823A CN202010391792.5A CN202010391792A CN111531823A CN 111531823 A CN111531823 A CN 111531823A CN 202010391792 A CN202010391792 A CN 202010391792A CN 111531823 A CN111531823 A CN 111531823A
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- core
- block
- pulling
- dovetail
- dovetail block
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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
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
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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
Abstract
The invention discloses a core-pulling structure die in the technical field of core-pulling dies, which comprises a movable die and a fixed die, wherein the movable die and the fixed die are assembled in a sliding manner, and the movable die and the fixed die are provided with a three-surface core-pulling mechanism together. According to the invention, the three-surface core-pulling mechanism is arranged between the movable die and the fixed die, and the three-surface core-pulling mechanism can realize simultaneous core pulling of three surfaces of the fixed die through the external power part, so that compared with the traditional mode that the three power parts drive three surfaces to pull cores, the manufacturing cost and the maintenance cost of the die are reduced.
Description
Technical Field
The invention relates to the technical field of core-pulling molds, in particular to a core-pulling structure mold.
Background
When the side wall of the plastic product is provided with the through hole groove or the boss, the plastic product cannot be directly released from the mold, the molding parts of the molding hole, the groove and the boss are required to be made to be movable, the movable part is called a movable core, and the structure for finishing the movable extraction and the reset is called a core pulling structure.
Most of the existing three-side core-pulling molds are convenient for demoulding of the injection mold by adopting a mode that three cylinders respectively pull cores, so that three power elements are needed in the design, the manufacturing cost and the maintenance cost of the mold are increased, the positions of three through holes of the existing injection mold are diversified, the three-side core-pulling molds in use cannot be adapted through adjustment, a common solution is to replace a new core-pulling mold, the construction period is influenced, and the production cost of a manufacturer is also increased.
Based on the above, the invention designs a core-pulling structure die to solve the above problems.
Disclosure of Invention
The invention aims to provide a core-pulling structure mold, which aims to solve the problems that the manufacturing cost and the maintenance cost of the three-sided core-pulling mold are high, and manufacturers need to purchase various three-sided core-pulling molds to adapt to production.
In order to achieve the purpose, the invention provides the following technical scheme: a core-pulling structure die comprises a movable die and a fixed die, wherein the movable die and the fixed die are assembled in a sliding mode, and a three-surface core-pulling mechanism is arranged on the movable die and the fixed die together;
the three-surface core pulling mechanism comprises a power plate fixedly connected with a movable die, wherein the power plate is U-shaped, two end parts of the power plate are fixedly connected with a first dovetail block, a second dovetail block is arranged above the first dovetail block, the bottom surface of the second dovetail block and the top surface of the first dovetail block are respectively provided with a mounting groove, the bottom surface of the second dovetail block and the inclined part of the first dovetail block are respectively provided with a guide rail fixed in the mounting groove, an upper moving block and a lower moving block are arranged between the two guide rails, the top surface of the upper moving block and the bottom surface of the lower moving block are respectively provided with a guide chute in sliding assembly with the guide rails, a side core is clamped between the bottom surface of the upper moving block and the top surface of the lower moving block, the side core is designed into a rod shape, the top of the side core is shaped, the rod-shaped side surface of the side core is provided with a thread surface, the thread, a first kidney-shaped hole is formed in the middle of the front face of the power plate, a rear mold core is assembled in the first kidney-shaped hole in a sliding mode, and a positioning mechanism is arranged on the rear mold core; the plastic part with holes on three sides is usually required to be produced by using an injection mold in the current injection molding industry, the injection mold with the core-pulling on three sides is required to be used at the moment, the core-pulling on three sides is realized by three power parts after the injection molding is finished, the mold with the design needs a plurality of power parts, the power parts belong to precise components, the market value is high, the manufacturing cost and the maintenance cost of the core-pulling on three sides are increased invisibly, in addition, a new core-pulling on three sides is required to be used when the position of an injection hole on three sides is changed, a plurality of core-pulling on three sides are required to be purchased to adapt to the production when a manufacturer produces the core-pulling mold, the production cost of the manufacturer is increased, and when the core-pulling structure mold is used, external force is only required to be connected to a power plate, the external force is forced to move, The first dovetail block and the second dovetail block move synchronously, the guide rail on the mounting groove is matched with the guide chute in a guiding way, so that the upper moving block and the lower moving block can move towards the tails of the first dovetail block and the second dovetail block along the direction of the guide rail, the side surfaces of the first dovetail block and the second dovetail block are inclined surfaces, when the upper moving block and the lower moving block move towards the tails of the first dovetail block and the second dovetail block, the distance between the upper moving block and the lower moving block and the fixed die is increased, so that the upper moving block and the lower moving block can draw out a side core from a core hole on the side surface of the fixed die to finish the core pulling action, in addition, the power plate can directly carry the rear core out drawing out from a core hole behind the power plate while moving, therefore, the core pulling structure die can finish core pulling on two side surfaces and three sides behind the power plate simultaneously under the action of the power plate, compared with the previous three power members driving three sides to pull core pulling, the manufacturing cost and the maintenance cost of the die are reduced; in addition, three power parts which are used at present drive a three-surface core-pulling mold, each mold can only adapt to the production of one core-pulling injection molding part, in the actual production, a manufacturer often needs to purchase a plurality of three-surface core-pulling molds to adapt to the production requirements, the production cost is increased, but the core-pulling structure mold can adapt to different production requirements through adjustment, when in adjustment, an adjusting nut on a thread surface of a side core is unscrewed, then the side core is moved to a core hole on the side surface of a fixed mold, then the side core extends into the core hole on the side surface, the extending amount of the side core is adjusted, when the side core reaches the proper extending amount, the adjusting nut is screwed again, at the moment, the position adjustment of the side core is completed, then according to the core hole position behind the fixed mold, a positioning mechanism is firstly opened, then the rear core is moved to the core hole behind the fixed mold, then the rear core extends into the core hole behind the fixed, the positioning mechanism is locked again when the proper stretching amount is reached, and the position adjustment of the rear core is completed at the moment, so that the core pulling mold is adaptive to the production of different injection molds, the purchase amount of the core pulling mold by a manufacturer is reduced, and the production cost is reduced; the three-side core pulling mechanism is composed of a power plate, a first dovetail block, a second dovetail block, an upper moving block, a lower moving block and a side core, and is split in structure.
As a further scheme of the invention, the second positioning mechanism comprises a second kidney-shaped hole and a threaded column, the second kidney-shaped hole is arranged in the middle of the bottom surface of the first kidney-shaped hole, the top end of the threaded column is fixed on the side surface of the rear mold core, the threaded column is clamped in the first kidney-shaped hole, and a positioning nut is connected to the threaded column in a threaded manner; the fixing of the rear core position is facilitated through the second positioning mechanism, the fixed rear core only needs to be screwed up by the positioning nut on the threaded column, when the rear core needs to be changed to adapt to the rear injection hole positions of different injection parts, the positioning nut on the threaded column only needs to be loosened, the positioning nut on the threaded column is screwed up again after the rear core is moved to a proper position, and the adjustment is completed.
As a further scheme of the invention, a stepped hole is formed in the middle of the fixed die, an ejector rod is assembled in the stepped hole in a sealing and sliding manner, a return spring positioned in the stepped hole is sleeved on the ejector rod, a limiting piece fixed with the fixed die is arranged below the return spring, the limiting piece is assembled with the ejector rod in a sliding manner, a moving rod is arranged at the bottom of the ejector rod, a bending plate is arranged at the end part of the moving rod, the top of the bending plate is fixed at the bottom of the first dovetail block, a guide groove is formed in the side surface of the bending plate, the guide groove is divided into two sections, one section of the guide groove is horizontally arranged, the other section of the guide groove is obliquely arranged, and; in a traditional mold, the ejection is usually realized by pushing the ejector rod with external power after demolding, so that a power part such as an air cylinder is needed to be added, and the manufacturing cost of the mold is increased, but when the mold with the core pulling structure works, the power part drives the power plate to complete simultaneous core pulling of three surfaces, the power part also drives the bending plate to move, the bending plate moves to force the moving rod to move in the guide groove, because the guide groove is divided into two sections, one section is horizontally arranged, the other section is obliquely arranged, the moving rod is always in the horizontal section of the guide groove before demolding of the moving mold and the fixed mold is not completed, the ejector rod cannot move upwards and ejection does not occur, when the moving mold and the fixed mold complete demolding, the moving rod moves to the inclined section of the guide groove, the moving rod moves upwards, the moving rod pushes the ejector rod to move upwards to complete the ejection, and the whole ejection is completely completed when the core pulling action is completed, need not external power spare to independently accomplish, reduced the manufacturing cost of mould.
As a further scheme of the invention, the first positioning mechanism comprises an upper connecting lug and a lower connecting lug, the upper connecting lug is fixed on the second dovetail block, the lower connecting lug is fixed on the first dovetail block, a bolt is jointly inserted into the upper connecting lug and the lower connecting lug, and a locking nut is connected onto the bolt in a threaded manner; the first positioning mechanism is used for fixing the first dovetail block and the second dovetail block, and during operation, bolts only need to be inserted into the upper connecting lug and the lower connecting lug, and then the locking nuts are screwed down.
As a further scheme of the invention, an assembly mechanism is arranged on the first dovetail block and the second dovetail block, the assembly mechanism comprises an assembly groove and an assembly block, the assembly groove is arranged on the top surface of the first dovetail block, the second dovetail block is arranged on the bottom surface of the second dovetail block, and the assembly groove and the assembly block are connected in a clamping manner; through set up assembly devices on first dovetail piece and second dovetail piece, make things convenient for first dovetail piece and second dovetail piece to realize the butt joint when the installation, need not to observe in the eye during the butt joint, only need can accurate butt joint with assembly groove and assembly piece block.
As a further scheme of the invention, the bottom surface of the movable die and the top surface of the fixed die are respectively provided with an L-shaped guide rail and an L-shaped guide groove, and the L-shaped guide rail and the L-shaped guide groove are assembled in a sliding manner; through set up L type guide rail and L type guide slot respectively at movable mould bottom surface and cover half top surface, L type guide rail and L type guide slot guarantee that movable mould can not take place the offset with the cover half when moving.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the three-surface core-pulling mechanism is arranged between the movable die and the fixed die, and the three-surface core-pulling mechanism can realize simultaneous core pulling of three surfaces of the fixed die through an external power part, so that compared with the previous mode that three power parts drive three surfaces to pull cores, the manufacturing cost and the maintenance cost of the die are reduced;
2. the invention can adjust the positions of the two side cores and the rear core, so that the core-pulling mold can adapt to the production requirements of different injection molds after being adjusted, the purchase quantity of the core-pulling mold by a manufacturer is reduced, and the production cost is reduced;
3. the three-surface core-pulling mechanism is in a split design, so that the production and the assembly of the three-surface core-pulling mechanism are facilitated, and the disassembly and the replacement of the side mold core are also facilitated.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a partial cross-sectional structural schematic of the present invention;
FIG. 3 is an enlarged view at B in FIG. 2;
FIG. 4 is an enlarged view at C of FIG. 2;
FIG. 5 is an enlarged view taken at A in FIG. 1;
fig. 6 is an enlarged view at D in fig. 1.
In the drawings, the components represented by the respective reference numerals are listed below:
the movable die comprises a movable die 1, a fixed die 2, a power plate 301, a first dovetail block 302, a second dovetail block 303, a mounting groove 304, a guide rail 305, an upper moving block 306, a lower moving block 307, a guide chute 308, a side core 309, a threaded surface 310, an adjusting nut 311, a first kidney-shaped hole 312, a rear core 313, a second kidney-shaped hole 314, a threaded column 315, a positioning nut 316, an upper connecting lug 3011, a lower connecting lug 3012, a bolt 3013, a locking nut 3014, an assembling groove 3015, an assembling block 3016, an L-shaped guide slot 3017, an L-shaped guide rail 3018, a stepped hole 401, a jacking rod 402, a return spring 403, a limiting piece 404, a moving rod 405, a bending plate 406 and a guide groove 407.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring to fig. 1-6, the present invention provides a technical solution: a core-pulling structure die comprises a movable die 1 and a fixed die 2, wherein the movable die 1 and the fixed die 2 are assembled in a sliding mode, and a three-surface core-pulling mechanism is arranged on the movable die 1 and the fixed die 2 together;
the three-side core-pulling mechanism comprises a power plate 301 fixedly connected with a movable die 1, wherein the power plate 301 is U-shaped, two ends of the power plate are fixedly connected with a first dovetail block 302, a second dovetail block 303 is arranged above the first dovetail block 302, the bottom surface of the second dovetail block 303 and the top surface of the first dovetail block 302 are respectively provided with a mounting groove 304, the bottom surface of the second dovetail block 303 and the inclined part of the first dovetail block 302 are respectively provided with a guide rail 305 fixed in the mounting groove 304, an upper moving block 306 and a lower moving block 307 are arranged between the two guide rails 305, the top surface of the upper moving block 306 and the bottom surface of the lower moving block 307 are respectively provided with a guide chute 308 slidably assembled with the guide rails 305, a side core 309 is clamped between the bottom surface of the upper moving block 306 and the top surface of the lower moving block 307, the side core 309 is designed into a rod shape, the top of the side core is in the shape, a threaded surface 310 is arranged on the side surface, two adjusting nuts 311 are connected with threads, and two adjusting nuts 311 are respectively, a first kidney-shaped hole 312 is formed in the middle of the front face of the power plate 301, a rear core 313 is assembled in the first kidney-shaped hole 312 in a sliding mode, and a positioning mechanism is arranged on the rear core 313; in addition, when the injection holes on three sides are changed, a new three-sided core-pulling mold needs to be used, a plurality of three-sided core-pulling molds need to be purchased to adapt to production when being produced by a manufacturer, the production cost of the manufacturer is increased, when the upper core-pulling structure mold is used, external force only needs to be connected to the power plate 301, the external force power plate 301 is forced to move during injection and demolding, and the power plate 301 can drive the movable mold 1, the movable mold 1 and the movable mold 1 to move, so that the plastic part with three-sided core-pulling is required to be produced by the movable mold, and the currently used three-sided core-pulling mold is realized by the three power parts respectively The first dovetail block 302 and the second dovetail block 303 move synchronously, the guide rail 305 on the mounting groove 304 and the guide chute 308 are in guide fit to enable the upper moving block 306 and the lower moving block 307 to move towards the tail parts of the first dovetail block 302 and the second dovetail block 303 along the direction of the guide rail 305, because the side surfaces of the first dovetail block 302 and the second dovetail block 303 are inclined surfaces, when the upper moving block 306 and the lower moving block 307 move towards the tail parts of the first dovetail block 302 and the second dovetail block 303, the distance between the upper moving block 306 and the lower moving block 307 and the fixed die 2 is increased, so that the upper moving block 306 and the lower moving block 307 can extract the side core 309 from a core hole on the side surface of the fixed die 2 to complete the core pulling action, and in addition, the fixed die 301 can directly carry the rear core 313 to extract from a core hole on the rear surface of the fixed die 2 simultaneously, so that the die can complete the two side surfaces and the rear surface core pulling action simultaneously under the action of the power plate 301 of one power member, compared with the prior art that three power parts drive three faces to pull the core, the manufacturing cost and the maintenance cost of the die are reduced; in addition, three power parts used at present drive a three-surface core-pulling mold, each mold can only adapt to the production of one core-pulling injection molding part, in the actual production, a manufacturer often needs to purchase a plurality of three-surface core-pulling molds to adapt to the production requirements, the production cost is increased, but the core-pulling structure mold can adapt to different production requirements through adjustment, when in adjustment, an adjusting nut 311 on a thread surface 310 of a side core 309 is unscrewed, then the side core 309 is moved to a core hole on the side surface of a fixed mold 2, then the side core 309 is stretched into the core hole on the side surface, the stretching amount of the side core 309 is adjusted, when the side core reaches the proper stretching amount, the adjusting nut 311 is screwed again, at this moment, the position adjustment of the side core 309 is completed, then according to the core hole position on the rear surface of the fixed mold 2, a positioning mechanism is firstly opened, then the rear core 313 is moved to the core hole on the rear surface of the fixed mold, the stretching amount of the rear core 313 is adjusted to enable the rear core 313 to be locked again when the proper stretching amount is reached, so that the position adjustment of the rear core 313 is completed, the core-pulling mold is adaptive to the production of different injection molds due to the upper structure, the purchase amount of the core-pulling mold by a manufacturer is reduced, and the production cost is reduced; the three-face core-pulling mechanism is composed of a power plate 301, a first dovetail block 302, a second dovetail block 303, an upper moving block 306, a lower moving block 307 and a side core 309, and is split in structure, during assembly, the side core 309 is clamped between the upper moving block 306 and the lower moving block 307, then the upper moving block 306 and the lower moving block 307 are clamped between the first dovetail block 302 and the second dovetail block 303, and finally the first positioning mechanism is locked, so that the assembly of the three-face core-pulling mechanism is completed.
As a further scheme of the invention, the second positioning mechanism comprises a second kidney-shaped hole 314 and a threaded column 315, the second kidney-shaped hole 314 is arranged in the middle of the bottom surface of the first kidney-shaped hole 312, the top end of the threaded column 315 is fixed on the side surface of the rear core 313, the threaded column 315 is clamped in the first kidney-shaped hole 312, and a positioning nut 316 is connected to the threaded column 315 in a threaded manner; the position of the rear core 313 is convenient to fix through the second positioning mechanism, the rear core 313 is fixed only by screwing the positioning nut 316 on the threaded column 315, when the rear core 313 needs to be changed to adapt to the position of an injection hole behind different injection-molded parts, the positioning nut 316 on the threaded column 315 only needs to be loosened, and the positioning nut 316 on the threaded column 315 is screwed again after the rear core 313 is moved to a proper position, so that the adjustment is completed.
As a further scheme of the invention, a stepped hole 401 is arranged in the middle of the fixed die 2, an ejector pin 402 is hermetically and slidably assembled in the stepped hole 401, a return spring 403 positioned in the stepped hole 401 is sleeved on the ejector pin 402, a limiting part 404 fixed with the fixed die 2 is arranged below the return spring 403, the limiting part 404 is slidably assembled with the ejector pin 402, a moving rod 405 is arranged at the bottom of the ejector pin 402, a bending plate 406 is arranged at the end part of the moving rod 405, the top part of the bending plate 406 is fixed at the bottom of the first dovetail block 302, a guide groove 407 is arranged on the side surface of the bending plate 406, the guide groove 407 is divided into two sections, one section is horizontally arranged, the other section is obliquely arranged, and the guide groove 407 is slidably assembled with the; in a traditional mold, the material ejection is usually realized by pushing the ejector rod with external power after demolding, so that a power part such as an air cylinder is needed to be added, and the manufacturing cost of the mold is increased, but when the mold with the core pulling structure works, the power part drives the power plate 301 to complete the simultaneous core pulling of three surfaces, the power part also drives the bending plate 406 to move, the bending plate 406 moves to force the moving rod 405 to move in the guide groove 407, because the guide groove 407 is divided into two sections, one section is horizontally arranged, the other section is obliquely arranged, before the demolding of the movable mold 1 and the fixed mold 2 is not finished, the moving rod 405 is always in the horizontal section of the guide groove 407, at the moment, the material ejection rod 402 cannot move upwards, the material ejection does not occur, when the movable mold 1 and the fixed mold 2 complete the demolding, the moving rod 405 moves to the inclined section of the guide groove 407, at the moment, the moving rod 405 moves upwards, and, the ejection action is completed, the whole ejection action is completed completely when the core-pulling action is completed, an external power part is not needed to be independently completed, and the manufacturing cost of the die is reduced.
As a further scheme of the invention, the first positioning mechanism comprises an upper connecting lug 3011 and a lower connecting lug 3012, the upper connecting lug 3011 is fixed on the second dovetail block 303, the lower connecting lug 3012 is fixed on the first dovetail block 302, a bolt 3013 is jointly inserted into the upper connecting lug 3011 and the lower connecting lug 3012, and a locking nut 3014 is connected to the bolt 3013 through threads; the first positioning mechanism is used for fixing the first dovetail block 302 and the second dovetail block 303, and during operation, bolts 3013 are inserted into the upper connecting lug 3011 and the lower connecting lug 3012, and then the locking nuts 3014 are screwed.
As a further scheme of the invention, an assembly mechanism is arranged on the first dovetail block 302 and the second dovetail block 303, the assembly mechanism comprises an assembly groove 3015 and an assembly block 3016, the assembly groove 3015 is arranged on the top surface of the first dovetail block 302, the second dovetail block 303 is arranged on the bottom surface of the second dovetail block 303, and the assembly groove 3015 and the assembly block 3016 are connected in a clamping manner; through set up assembly devices on first dovetail piece 302 and second dovetail piece 303, make things convenient for first dovetail piece 302 and second dovetail piece 303 to realize the butt joint when the installation, need not to observe in the eye during the butt joint, only need with the mounting groove 3015 and the block 3016 block can accurate butt joint.
As a further scheme of the invention, the bottom surface of the movable mold 1 and the top surface of the fixed mold 2 are respectively provided with an L-shaped guide rail 3018 and an L-shaped guide slot 3017, and the L-shaped guide rail 3018 and the L-shaped guide slot 3017 are assembled in a sliding manner; by arranging the L-shaped guide rail 3018 and the L-shaped guide groove 3017 on the bottom surface of the movable mold 1 and the top surface of the fixed mold 2 respectively, the L-shaped guide rail 3018 and the L-shaped guide groove 3017 ensure that the movable mold 1 does not deviate from the fixed mold 2 when moving.
The working principle is as follows: when the upper core-pulling structure mold is used, the power plate 301 is pulled by the power piece, the power plate 301 drives the first dovetail block 302 and the second dovetail block 303 at two sides to move simultaneously, at the moment, due to the limiting effect of the core hole on the fixed mold 2, the upper moving block 306 and the lower moving block 307 can move along the guide rail 305, the distance between the oblique sides of the first dovetail block 302 and the second dovetail block 303 and the fixed mold 2 is increased, so that the side core 309 can be drawn out from the core hole to complete the core pulling, the rear core 313 fixed with the power plate 301 completes the core pulling, the three-side core pulling action is completed, after the core pulling is completed, the movable rod 405 also moves to the highest point of the guide groove 407, simultaneously, the ejection is completed, the core pulling of three surfaces of the fixed die can be realized by an external power part of the upper core pulling structure die, the ejection can also be completed simultaneously, compared with the prior art that three power parts drive three faces to pull the core, the manufacturing cost and the maintenance cost of the die are reduced.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (6)
1. The utility model provides a structure mould of loosing core, includes movable mould (1) and cover half (2), its characterized in that: the movable die (1) and the fixed die (2) are assembled in a sliding mode, and the movable die (1) and the fixed die (2) are provided with a three-face core-pulling mechanism together;
the three-face core pulling mechanism comprises a power plate (301) fixedly connected with a movable die (1), the power plate (301) is U-shaped, two ends of the power plate are fixedly connected with first dovetail blocks (302), a second dovetail block (303) is arranged above the first dovetail block (302), the first dovetail block (302) and the second dovetail block (303) are connected through a first positioning mechanism, mounting grooves (304) are formed in the bottom surface of the second dovetail block (303) and the top surface of the first dovetail block (302), guide rails (305) fixed in the mounting grooves (304) are arranged on the bottom surface of the second dovetail block (303) and inclined parts of the first dovetail block (302), an upper moving block (306) and a lower moving block (307) are arranged between the two guide rails (305), guide chutes (308) assembled with the guide rails (305) in a sliding mode are arranged on the top surface of the upper moving block (306) and the bottom surface of the lower moving block (307), a side core (309) is clamped between the bottom surface of the upper moving block (306) and the top surface of the lower moving block (307), the side core (309) is designed to be rod-shaped, the top of the side core is in the shape of a core, a threaded surface (310) is arranged on the side surface of the rod-shaped, two adjusting nuts (311) are in threaded connection on the threaded surface (310), the two adjusting nuts (311) are respectively located on two sides of the upper moving block (306), a first kidney-shaped hole (312) is arranged in the middle of the front surface of the power plate (301), a rear core (313) is assembled in the first kidney-shaped hole (312) in a sliding mode, and a second positioning mechanism is arranged on the rear core (313.
2. The core-pulling structure mold according to claim 1, wherein: the second positioning mechanism comprises a second waist-shaped hole (314) and a threaded column (315), the second waist-shaped hole (314) is formed in the middle of the bottom surface of the first waist-shaped hole (312), the top end of the threaded column (315) is fixed to the side surface of the rear mold core (313), the threaded column (315) is clamped in the first waist-shaped hole (312), and a positioning nut (316) is connected to the threaded column (315) in a threaded mode.
3. The core-pulling structure mold according to claim 1, wherein: the fixed die (2) is also provided with a material ejecting mechanism, the material ejecting mechanism comprises a stepped hole (401) arranged in the middle of the fixed die (2), an ejector rod (402) is hermetically and slidably assembled in the stepped hole (401), a return spring (403) positioned in the stepped hole (401) is sleeved on the ejector rod (402), a limiting piece (404) fixed with the fixed die (2) is arranged below the return spring (403), the limiting piece (404) is assembled with the ejector rod (402) in a sliding way, the bottom of the ejector rod (402) is provided with a movable rod (405), a bending plate (406) is arranged at the end part of the movable rod (405), the top of the bending plate (406) is fixed at the bottom of the first dovetail block (302), and the side surface of the bending plate (406) is provided with a guide groove (407), the guide groove (407) is divided into two sections, one section of the guide groove is horizontally arranged, the other section of the guide groove is obliquely arranged, and the guide groove (407) is in sliding fit with the moving rod (405).
4. The core-pulling structure mold according to claim 1, wherein: first positioning mechanism includes engaging lug (3011) and lower engaging lug (3012), go up engaging lug (3011) and fix on second dovetail piece (303), engaging lug (3012) are fixed on first dovetail piece (302) down, go up engaging lug (3011) and lower engaging lug (3012) common cartridge has bolt (3013), threaded connection has lock nut (3014) on bolt (3013).
5. The core-pulling structure mold according to claim 1, wherein: the assembling structure is characterized in that an assembling mechanism is arranged on the first dovetail block (302) and the second dovetail block (303), the assembling mechanism comprises an assembling groove (3015) and an assembling block (3016), the assembling groove (3015) is arranged on the top surface of the first dovetail block (302), the second dovetail block (303) is arranged on the bottom surface of the second dovetail block (303), and the assembling groove (3015) and the assembling block (3016) are connected in a clamping mode.
6. The core-pulling structure mold according to claim 1, wherein: and the bottom surface of the movable die (1) and the top surface of the fixed die (2) are respectively provided with an L-shaped guide rail (3018) and an L-shaped guide groove (3017), and the L-shaped guide rail (3018) and the L-shaped guide groove (3017) are assembled in a sliding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010391792.5A CN111531823A (en) | 2020-05-11 | 2020-05-11 | Core-pulling structure die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010391792.5A CN111531823A (en) | 2020-05-11 | 2020-05-11 | Core-pulling structure die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111531823A true CN111531823A (en) | 2020-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010391792.5A Withdrawn CN111531823A (en) | 2020-05-11 | 2020-05-11 | Core-pulling structure die |
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| Country | Link |
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| CN (1) | CN111531823A (en) |
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| JP2003200248A (en) * | 2001-12-26 | 2003-07-15 | Toyota Motor Corp | Molding die and its displacement method |
| CN104943084A (en) * | 2015-07-10 | 2015-09-30 | 肖国华 | Double linkage type t-branch pipe elbow core-pulling mechanism |
| CN105216171A (en) * | 2015-09-14 | 2016-01-06 | 黄石市鼎晟模具有限公司 | A kind of sound equipment plastic mould with internal adjustable mounting bracket |
| CN105500639A (en) * | 2015-12-30 | 2016-04-20 | 优力精密塑胶（苏州工业园区）有限公司 | Mechanism capable of realizing core pulling in multiple directions and core pulling method |
| CN207711273U (en) * | 2017-12-13 | 2018-08-10 | 东莞市博一家具有限公司 | The injection mold of multirow bit synchronization core pulling |
| CN208880563U (en) * | 2018-10-23 | 2019-05-21 | 杭州金益科技有限公司 | A kind of plastic mould core-extracting device |
| CN110370563A (en) * | 2019-07-19 | 2019-10-25 | 昆山新实达精密电子科技有限公司 | A kind of Mold Core-pulling Mechanism being adjustable fixed injecting products inserts length |
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2020
- 2020-05-11 CN CN202010391792.5A patent/CN111531823A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003200248A (en) * | 2001-12-26 | 2003-07-15 | Toyota Motor Corp | Molding die and its displacement method |
| CN104943084A (en) * | 2015-07-10 | 2015-09-30 | 肖国华 | Double linkage type t-branch pipe elbow core-pulling mechanism |
| CN105216171A (en) * | 2015-09-14 | 2016-01-06 | 黄石市鼎晟模具有限公司 | A kind of sound equipment plastic mould with internal adjustable mounting bracket |
| CN105500639A (en) * | 2015-12-30 | 2016-04-20 | 优力精密塑胶（苏州工业园区）有限公司 | Mechanism capable of realizing core pulling in multiple directions and core pulling method |
| CN207711273U (en) * | 2017-12-13 | 2018-08-10 | 东莞市博一家具有限公司 | The injection mold of multirow bit synchronization core pulling |
| CN208880563U (en) * | 2018-10-23 | 2019-05-21 | 杭州金益科技有限公司 | A kind of plastic mould core-extracting device |
| CN110370563A (en) * | 2019-07-19 | 2019-10-25 | 昆山新实达精密电子科技有限公司 | A kind of Mold Core-pulling Mechanism being adjustable fixed injecting products inserts length |
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