CN113246414A - Crossed secondary core-pulling mold - Google Patents
Crossed secondary core-pulling mold Download PDFInfo
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- CN113246414A CN113246414A CN202110684247.XA CN202110684247A CN113246414A CN 113246414 A CN113246414 A CN 113246414A CN 202110684247 A CN202110684247 A CN 202110684247A CN 113246414 A CN113246414 A CN 113246414A
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- 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
- B29C45/44—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
Abstract
The invention relates to the technical field of dies and discloses a crossed secondary core-pulling die which comprises a movable die, a fixed die and a core-pulling assembly, wherein the movable die and the fixed die are oppositely arranged to form a forming cavity, the core-pulling assembly comprises a driving device, a sliding seat, a first core-pulling unit and a second core-pulling unit, an output shaft of the driving device is connected with the sliding seat, the first core-pulling unit comprises a first sliding core and a vertically arranged sliding block, the second core-pulling unit comprises a sliding core fixing plate and a second sliding core, the sliding core fixing plate is positioned at the side edge of the sliding seat close to the forming cavity, one end of the first sliding core movably penetrates through the sliding core fixing plate and is connected with the sliding seat, the other end of the first sliding core is fixedly provided with an obliquely upward jacking plate, the sliding block is connected with the jacking plate in a sliding manner, the second sliding core is fixed on the side surface, far away from the sliding seat, of the sliding core, The horizontal core pulling action simplifies the core pulling structure and reduces the die sinking cost.
Description
Technical Field
The invention relates to the technical field of molds, in particular to a crossed secondary core-pulling mold.
Background
At present, the application range of the mold is more and more extensive, the technical requirements of people on the production process of the mold are more and more high, the mold processing has a plurality of realization methods, wherein the application range of the core-pulling type mold processing mode is more and more extensive, the mold can simply and quickly prepare plastic products with different shapes through an injection molding method, when a product needs to be produced, holes are arranged in the X direction and the Y direction, the most modes are adopted at present when the mold is designed, the core pulling is carried out through pulling a template in one direction, the core pulling is driven by an oil cylinder in the other direction, the core pulling in the two directions relates to more parts, the volume of the mold is inevitably increased, and the manufacturing cost of the mold is also increased; in addition, the core is alternately pulled, a group of mechanisms for ensuring the action sequence of the mold opening and closing of the mold and the core pulling of the oil cylinder are required to be added during design, the precision requirement on the mechanisms is high, otherwise, the sliding block is easily damaged by inserting, the structure failure rate is high, the maintenance difficulty is high, the service life of the mold is influenced, the production cost is greatly increased, and meanwhile, the maintenance cost of the mold is greatly increased.
Disclosure of Invention
Therefore, a cross-type secondary core-pulling mold is needed to be provided, and the problems of complex structure, high manufacturing cost and poor stability of the existing cross-type core-pulling mold are solved.
In order to achieve the purpose, the invention provides a crossed secondary core pulling mold which is characterized by comprising a movable mold, a fixed mold and a core pulling assembly, wherein the movable mold is positioned above the fixed mold, the movable mold and the fixed mold are oppositely arranged to form a molding cavity, the core pulling assembly comprises a driving device, a sliding seat, a first core pulling unit and a second core pulling unit, an output shaft of the driving device is connected with the sliding seat, the sliding seat is arranged on the side edge of the molding cavity in a sliding manner, the first core pulling unit comprises a first sliding core and a vertically arranged sliding block, the second core pulling unit comprises a sliding core fixing plate and a second sliding core, the sliding core fixing plate is positioned on the side edge of the sliding seat close to the molding cavity, one end of the first sliding core movably penetrates through the sliding core fixing plate and is connected with the sliding seat, a jacking plate which is inclined upwards is fixed at the other end of the first sliding core, and the sliding block is connected with the jacking plate in a sliding manner, the second sliding core is fixed on the side face, far away from the sliding seat, of the sliding core fixing plate, and the sliding core fixing plate is movably connected with the sliding seat in a blocking mode.
Furthermore, the bottom of the sliding block movably penetrates through a second sliding core, the first sliding core is located in the second sliding core, a clamping groove is vertically formed in the second sliding core, a clamping strip is fixed on the side face of the sliding block, and the clamping groove is matched with the clamping strip. The first core that slides of cooperation restriction draw-in groove and card strip directly drives slider horizontal migration for jack-up board is with slider jack-up when sliding, makes the slider slide in vertical direction, accomplishes the ascending core of loosing core in vertical direction.
Furthermore, the core pulling assembly further comprises an extrusion pushing unit and a guide sliding seat, wherein a sliding channel is arranged on the guide sliding seat, the sliding seat movably passes through the sliding channel, an extrusion groove is formed in the upper surface of the sliding seat, the extrusion pushing unit comprises a pushing block and an extrusion elastic piece, the extrusion elastic piece is fixed in the extrusion groove, the pushing block is fixed on the extrusion elastic piece, the pushing block protrudes out of the upper surface of the sliding seat, the top end of the sliding channel is sealed and arranged, the pushing block is extruded by the top end of the sliding channel to enable the pushing block to contract into the extrusion groove, a notch is formed in the side, close to the sliding core fixing plate, of the extrusion groove, an extension plate is fixed on the side, close to the sliding core fixing plate, of the pushing block, the extension plate is matched with the notch, the extension plate is arranged to be in a blocking connection with the side face of the sliding core fixing plate when the pushing block is extruded, and an extrusion face, obliquely arranged on the top face, close to one end of the sliding channel, is provided with the sliding seat, the side edge of the pushing block close to the sliding channel is provided with an inclined matching surface, and the extrusion surface is matched with the inclined surface.
The effect of extrusion promotion unit is to the second unit of loosing core play certain promotion reset effect, after extrusion promotion unit follows the slide and slides the certain distance, enter into the slide channel, the ejector pad is extruded and is contracted in the extrusion inslot, the extension plate falls into the breach this moment, perpendicular difference in height has between breach and the smooth core fixed plate, make the extension plate fall into behind the breach, keep off with smooth core fixed plate and connect, when the slide slides toward the shaping chamber, the extension plate can promote the second and loose core the subassembly and reset, extrusion promotion unit is from the slide channel roll-off back, the extension plate shifts up, the cancellation is to the second push action of loosing core the subassembly, later the slide continues to promote first unit net of loosing core and becomes the intracavity and slides. The inclined extrusion surface is convenient for the sliding channel to extrude the pushing block in the extrusion groove.
Further, it is fixed with horizontally limit pull rod to slide on the side that the core fixed plate is close to the slide, limit pull rod extends the setting along the slip direction of first smooth core, be close to on the side of sliding the core fixed plate on the slide and seted up spacing passageway, spacing pull rod activity passes spacing passageway, the one end of keeping away from of limit pull rod and sliding the core fixed plate is fixed with adjustable fender, adjustable fender's diameter is D1, the opening diameter that spacing passageway is close to sliding the core fixed plate is D2, and D1 is greater than D2. The slide slides outwards, and when the opening of spacing passageway reached the end of spacing pull rod, the adjustable fender kept off with the opening of spacing passageway and connects mutually to the slide drives the second subassembly of loosing core and moves.
Further, the subassembly of loosing core still includes transmission unit, transmission unit includes transmission slide and connecting block, the slope of transmission slide upper surface is provided with the slide rail, the gliding setting of connecting block is on the slide rail, the slide is fixed on the side of connecting block, drive arrangement's output shaft is connected with the transmission slide. Because the slide rail slope sets up, the push direction of drive arrangement output shaft is mutually perpendicular with the slip direction of slide, therefore drive arrangement can set up the side at the transmission slide, avoids drive arrangement to occupy the too many side space of mould.
Furthermore, one end of the slide rail, which is far away from the driving device, is fixed with a limiting convex strip, and the limiting convex strip is fixed on the transmission slide plate. The limiting convex strip is used for being connected with the sliding seat in a blocking mode, and the stroke of the driving device is limited.
Further, the subassembly of loosing core still includes extrudees spacing unit, the upper surface of slide is equipped with extrusion spacing groove and screens groove side by side, the screens groove is located the side that is close to the sliding core fixed plate on the slide, it includes stopper and spacing elastic component to extrude spacing unit, the upper surface at the stopper is fixed to spacing elastic component, spacing elastic component is connected with the movable mould, the lower fixed surface of stopper has the screens arch and extrudees protrudingly, the screens arch is protruding to be corresponding with screens groove and extrusion spacing groove respectively with the extrusion, and the side of screens groove and extrusion spacing groove is the inclined plane.
Screens tank bottom surface horizontal plane is less than the top surface of smooth core fixed plate, thereby when the screens arch is located the screens inslot, withstands the action of smooth core fixed plate and avoiding the second unit of loosing core, and the slide slides and makes the extrusion arch ejecting from the extrusion spacing groove, and the stopper jack-up that makes progress releases the fender of loosing core the subassembly to the second and connects, and the second is loosed core the subassembly and is loosed core the action under the drive of slide.
Furthermore, a fixed rod is fixed on the side face, close to the molding cavity, of the sliding core fixing plate, the fixed rod extends along the sliding direction of the second sliding core, a fixing hole is formed in the second sliding core, and the fixed rod corresponds to the fixing hole in position. The fixed rod stretches into the fixed hole, and the fixed rod is used for playing good limiting role to the fixed hole, and the rigidity of the second sliding core can be strengthened to the fixed rod simultaneously.
Furthermore, still include two spacing fixed plates, two spacing fixed plates are located the relative both sides of slide respectively. The space between the two limiting fixing plates forms a space, is connected with the sliding channel and the forming cavity and is used for limiting the sliding path of the sliding seat to a certain extent and ensuring the stable operation of the core pulling action.
Furthermore, the number of the core-pulling assemblies is two, and the two core-pulling assemblies are respectively positioned on two opposite sides of the forming cavity.
The technical scheme has the following beneficial effects:
in the invention, the first sliding core can slide in the horizontal direction through the driving device, the jacking plate drives the sliding block to move upwards when sliding, then the sliding seat pulls the second core-pulling unit through the limiting pull rod to complete core-pulling in the horizontal direction, the vertical core pulling action and the horizontal core pulling action are successively finished by the same core pulling component without arranging a core pulling component for each core pulling direction, the core pulling structure is simplified, spare parts of the slide block core pulling structure are reduced, the workload is reduced, the design space of a mould is saved, the mould opening cost is greatly reduced, meanwhile, as the sliding core fixing plate is movably blocked and connected with the sliding seat, after the first sliding core slides for a certain distance along with the sliding seat, the slide drives the second core pulling assembly to act, the problem of the core pulling sequence of the first sliding core and the second sliding core is solved, the structure is simple, the installation is convenient, the failure rate of the die can be effectively reduced, and the maintenance difficulty is reduced.
Drawings
FIG. 1 is a perspective view of a mold according to an embodiment.
Fig. 2 is a perspective view of the core back assembly according to the embodiment.
FIG. 3 is an exploded view of the core back assembly according to an embodiment.
Fig. 4 is a perspective view of a connection block according to an embodiment.
Fig. 5 is a perspective view of a slider according to an embodiment.
Fig. 6 is a structural diagram of the first core pulling unit and the second core pulling unit according to the specific embodiment.
Fig. 7 is a sectional view of the compressing and spacing unit according to the embodiment taken along a center line thereof.
Fig. 8 is a sectional view of the pressing and pushing unit according to the embodiment taken along the center line thereof.
FIG. 9 is a cross-sectional view of a mold according to an embodiment.
Description of reference numerals:
1. moving the mold;
2. fixing a mold;
3. a core pulling assembly; 31. a drive device;
32. a transmission unit; 321. a transmission slide plate; 322. connecting blocks; 323. a slide rail; 324. limiting convex strips; 325. a chute;
33. a slide base; 331. extruding a groove; 332. a notch; 333. a clamping groove; 334. extruding the limiting groove; 335. a limiting channel;
34. a first core pulling unit; 341. a first slide core; 342. jacking up the plate; 343. a slider; 344. clamping the strip;
35. a second core pulling unit; 351. a sliding core fixing plate; 352. a second slide core; 353. a card slot; 354. fixing the rod; 355. a limiting pull rod; 356. a movable baffle;
36. a pressing pushing unit; 361. a pushing block; 362. extruding the elastic member; 363. an extension plate;
37. a guide slide; 371. a slide channel; 372. extruding surface;
38. an extrusion limiting unit; 381. a limiting block; 382. a limiting elastic part; 383. a clamping bulge; 384. extruding the bulge;
39. a limiting fixing plate;
4. and forming a cavity.
Detailed Description
To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
Referring to fig. 1-9, the embodiment discloses a crossed secondary core pulling mold, which includes a movable mold 1, a fixed mold 2 and a core pulling assembly 3, wherein the movable mold 1 is located above the fixed mold 2, the movable mold 1 and the fixed mold 2 are oppositely arranged to form a molding cavity 4, a lifting rod can be arranged between the fixed mold 2 and the movable mold 1, and a lifting cylinder, which is connected with the lifting rod, can be further fixed on the movable mold 1 or the fixed mold 2, so as to complete the mold opening and mold closing actions between the movable mold 1 and the fixed mold 2.
In this embodiment, the number of the core pulling assemblies 3 is two, and the two core pulling assemblies 3 are respectively located on two opposite sides of the molding cavity 4. The two opposite sides of the plastic product after injection molding are provided with holes in the horizontal direction and the vertical direction at the same time.
The core back assembly 3 includes a driving device 31, a transmission unit 32, a slide 33, a first core back unit 34, a second core back unit 35, an extrusion pushing unit 36, a guide slide 3733, and an extrusion limiting unit 38.
An output shaft of the driving device 31 is connected with the sliding seat 33 through a transmission unit 32, the sliding seat 33 is slidably disposed at a side of the forming cavity 4, in this embodiment, the transmission unit 32 includes a transmission sliding plate 321 and a connection block 322, a sliding rail 323 is obliquely disposed on an upper surface of the transmission sliding plate 321, the connection block 322 is slidably disposed on the sliding rail 323, an oblique sliding groove 325 corresponding to the sliding rail 323 is disposed on a bottom surface of the connection block 322, the sliding seat 33 is fixed on a side surface of the connection block 322, and the output shaft of the driving device 31 is connected with the transmission sliding plate 321. Because the slide rails 323 are arranged obliquely, the pushing direction of the output shaft of the driving device 31 is perpendicular to the sliding direction of the slide seat 33, so that the driving device 31 can be arranged at the side of the transmission slide plate 321, and the driving device 31 is prevented from occupying too much side space of the mold. The driving device 31 is a driving oil cylinder or a driving air cylinder. One end of the slide rail 323 away from the driving device 31 is fixed with a limiting convex strip 324, and the limiting convex strip 324 is fixed on the transmission sliding plate 321. The limit protrusion 324 is used for contacting with the sliding seat 33 to limit the stroke of the driving device 31.
The first core pulling unit 34 comprises a first sliding core 341 and a vertically arranged sliding block 343, the second core pulling unit 35 comprises a sliding core fixing plate 351 and a second sliding core 352, the sliding core fixing plate 351 is located on the side edge of the sliding seat 33 close to the molding cavity 4, one end of the first sliding core 341 movably penetrates through the sliding core fixing plate 351 and is connected with the sliding seat 33, the other end of the first sliding core 341 is fixedly provided with an obliquely upward jacking plate 342, the sliding block 343 is in sliding connection with the jacking plate 342, the second sliding core 352 is fixed on the side face, far away from the sliding seat 33, of the sliding core fixing plate 351 and the sliding seat 33 are movably blocked. The bottom of the sliding block 343 movably penetrates through a second sliding core 352, the first sliding core 341 is located in the second sliding core 352, a clamping groove 353 is vertically arranged in the second sliding core 352, a clamping strip 344 is fixed on the side face of the sliding block 343, and the clamping groove 353 is matched with the clamping strip 344. The cooperation of draw-in groove 353 and card strip 344 restricts first smooth core 341 and directly drives slider 343 horizontal migration for jack-up board 342 pushes up slider 343 when sliding, makes slider 343 slide in vertical direction, accomplishes the loose core in the vertical direction.
In this embodiment, the bottom of the slider 343 penetrates the second sliding core 352, and the first sliding core 341 is located inside the second sliding core 352. The slider 343 is used to make a vertical hole in the molded plastic product, and the second slide core 352 is used to make a vertical hole in the molded plastic product.
The side of the sliding core fixing plate 351 close to the sliding base 33 is fixed with a horizontal limiting pull rod 355, the limiting pull rod 355 extends along the sliding direction of the first sliding core 341, the side of the sliding base 33 close to the sliding core fixing plate 351 is provided with a limiting channel 335, the limiting pull rod 355 movably penetrates through the limiting channel 335, one end of the limiting pull rod 355 far away from the sliding core fixing plate 351 is fixed with a movable baffle 356, the diameter of the movable baffle 356 is D1, the opening diameter of the limiting channel 335 close to the sliding core fixing plate 351 is D2, and D1 is larger than D2. The slide 33 slides outwards, and when the opening of the limit passage 335 reaches the end of the limit pull rod 355, the movable baffle 356 is in contact with the opening of the limit passage 335, so that the slide 33 drives the second core pulling assembly 3 to perform the core pulling action.
In this embodiment, one sliding seat 33 corresponds to one pressing limiting unit 38 and two pressing pushing units 36, and the two pressing pushing units 36 are respectively located at two sides of the pressing limiting unit 38.
A sliding channel 371 is arranged on the guide sliding seat 3733, the sliding seat 33 movably passes through the sliding channel 371, an extrusion groove 331 is arranged on the upper surface of the sliding seat 33, the extrusion pushing unit 36 comprises a pushing block 361 and an extrusion elastic member 362, the extrusion elastic member 362 is fixed in the extrusion groove 331, the pushing block 361 is fixed on the extrusion elastic member 362, the pushing block 361 protrudes out of the upper surface of the sliding seat 33, the top end of the sliding channel 371 is closed, the pushing block 361 is extruded by the top end of the sliding channel 371 to enable the pushing block 361 to contract in the extrusion groove 331, a notch 332 is arranged on the side of the extrusion groove 331 close to the sliding core fixing plate 351, an extension plate 363 is fixed on the side of the pushing block 361 close to the sliding core fixing plate 351, the extension plate 363 is matched with the notch 332, the extension plate 363 is arranged to be in a way that the pushing block 361 is blocked with the side of the sliding core fixing plate 351 when being extruded, an extrusion surface 372 which is obliquely arranged on the top surface of one end of the sliding channel 371 close to the sliding seat 33, the side of the pushing block 361 near the sliding channel 371 is provided with an inclined matching surface, and the pressing surface 372 is matched with the inclined surface. The extrusion pushing unit 36 is used for pushing the second core pulling unit 35 to perform a certain pushing reset function, when the extrusion pushing unit 36 slides a certain distance along with the sliding seat 33, the second core pulling unit enters the sliding channel 371, the pushing block is extruded to shrink the extrusion groove 331, the extension plate 363 falls into the notch 332 at the moment, a vertical height difference exists between the notch 332 and the sliding core fixing plate 351, the extension plate 363 falls into the notch 332 and is connected with the sliding core fixing plate 351 in a blocking mode, when the sliding seat 33 slides towards the forming cavity 4, the extension plate 363 can push the second core pulling assembly 3 to reset, the extrusion pushing unit 36 slides out from the sliding channel 371, the extension plate 363 moves upwards, the pushing function on the second core pulling assembly 3 is cancelled, and then the sliding seat 33 continues to push the first core pulling unit 34 to slide in the forming cavity 4. The inclined pressing surface 372 facilitates the sliding channel 371 to press the push block 361 in the pressing groove 331.
The upper surface of slide 33 is equipped with extrusion spacing groove 334 and screens groove 333 side by side, screens groove 333 is located slide 33 and is close to the side of sliding core fixed plate 351, extrude spacing unit 38 and include stopper 381 and spacing elastic component 382, spacing elastic component 382 is fixed at the upper surface of stopper 381, spacing elastic component 382 is connected with movable mould 1, the lower surface of stopper 381 is fixed with screens arch 383 and extrusion arch 384, screens arch 383 and extrusion arch 384 correspond with screens groove 333 and extrusion spacing groove 334 respectively, the side of screens groove 333 and extrusion spacing groove 334 is the inclined plane. The bottom surface horizontal plane of screens groove 333 is less than the top surface of sliding core fixed plate 351, when screens are protruding 383 to be located in screens groove 333, thereby withstand the action of sliding core fixed plate 351 and avoiding second unit 35 of loosing core, when slide 33 slides and makes extrusion protrusion 384 ejecting from extrusion spacing groove 334, stopper 381 jack-up upwards, screens are protruding 383 to release and are being kept off the second subassembly 3 of loosing core and connect, and the second subassembly 3 of loosing core is the action of loosing core under the drive of slide 33.
In this embodiment, the pressing elastic member 362 and the restricting elastic member 382 are both springs.
The sliding core fixing plate 351 and the second sliding core 352 are fixed through bolt fasteners, a fixing rod 354 is fixed on the side face, close to the molding cavity 4, of the sliding core fixing plate 351, the fixing rod 354 extends along the sliding direction of the second sliding core 352, a fixing hole is formed in the second sliding core 352, and the fixing rod 354 corresponds to the fixing hole in position. The fixing rod 354 extends into the fixing hole, the fixing rod 354 is used for limiting the fixing hole well, and the fixing rod 354 can enhance the rigidity of the second sliding core 352.
The device also comprises two limit fixing plates 39, and the two limit fixing plates 39 are respectively positioned on two opposite side edges of the sliding seat 33. The space between the two limiting fixing plates 39 forms a space, is connected with the sliding channel 371 and the forming cavity 4, and is used for limiting the sliding path of the sliding seat 33 to a certain extent and ensuring the stable operation of the core pulling action.
The using process of the embodiment comprises the following steps:
1. when the mold is closed, the second sliding core 352 is located in the molding cavity 4 to form a horizontal hole in the finished plastic product, the slider 343 vertically penetrates through the second sliding core 352 to form a vertical hole in the finished plastic product, and at this time, the locking protrusion 383 of the limiting block 381 is located in the locking groove 333 and abuts against the sliding core fixing plate 351;
2. when the mold is opened, the driving device 31 drives the transmission sliding plate 321 to slide through the output shaft, at this time, because the sliding rail 323 is obliquely arranged, the sliding seat 33 slides out along the sliding channel 371, the sliding seat 33 drives the first sliding core 341 to slide out, and the sliding block 343 is upwards drawn out due to the action of the stop block and the oblique jacking plate 342;
3. when the sliding seat 33 drives the first sliding core 341 to slide out, the open end of the limiting channel 335 gradually moves towards the movable baffle 356 at the end of the limiting pull rod 355, the pushing unit 36 is pushed into the sliding channel 371, the pushing block 361 is pushed to be completely contracted in the pushing groove 331, and the limiting block 381 is gradually jacked up;
4. after the slide block 343 finishes vertically pulling cores, a movable baffle 356 at the tail end of the limiting pull rod 355 is in blocking contact with an opening end of the limiting channel 335, a blocking protrusion 383 is completely jacked up to be separated from a blocking groove 333, the blocking protrusion 383 no longer blocks the slide core fixing plate 351, an extension plate 363 of a pushing block 361 falls into a notch 332, and the slide seat 33 pulls the second core pulling unit 35 and the first core pulling unit 34 to slide together under the action of the limiting pull rod 355 to finish the core pulling action of the second slide core 352;
5. after the completion of loosing core, the die sinking between movable mould 1 and the cover half 2 takes out the plastic products, movable mould 1 and cover half 2 die assembly again, the subassembly of loosing core 3 resets, when the subassembly of loosing core 3 resets, drive arrangement 31 drive slide 33 is to the inboard motion, drives the inboard motion of first subassembly of loosing core 3, because this moment, the extension piece falls into breach 332 in, the extension piece withstands smooth core fixed plate 351, so the second subassembly of loosing core 3 also slides to shaping intracavity 4.
6. When the pushing block 361 slides out of the sliding channel 371, the elastic member 362 pushes the pushing block 361 upward, the extension block also moves upward along with the pushing block 361, at this time, the second sliding core 352 has already been reset, then the sliding base 33 drives the first sliding core 341 to slide toward the molding cavity 4, due to the arrangement of the inclined jacking plate 342, the sliding block 343 moves downward, the bottom end penetrates through the second sliding core 352, and the resetting of the core pulling assembly 3 is completed.
According to the embodiment, the vertical and horizontal core pulling actions can be completed successively by using one set of core pulling assembly 3, the core pulling structure is simplified, spare and accessory parts of the core pulling structure of the sliding block 343 are reduced, the workload is reduced, the design space of the mold is saved, and the mold opening cost is greatly reduced.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrases "comprising … …" or "comprising … …" does not exclude the presence of additional elements in a process, method, article, or terminal that comprises the element. Further, herein, "greater than," "less than," "more than," and the like are understood to exclude the present numbers; the terms "above", "below", "within" and the like are to be understood as including the number.
Although the embodiments have been described, once the basic inventive concept is obtained, other variations and modifications of these embodiments can be made by those skilled in the art, so that the above embodiments are only examples of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes using the contents of the present specification and drawings, or any other related technical fields, which are directly or indirectly applied thereto, are included in the scope of the present invention.
Claims (10)
1. The crossed secondary core pulling mold is characterized by comprising a movable mold, a fixed mold and a core pulling assembly, wherein the movable mold is positioned above the fixed mold, the movable mold and the fixed mold are arranged relatively to form a molding cavity, the core pulling assembly comprises a driving device, a sliding seat, a first core pulling unit and a second core pulling unit, an output shaft of the driving device is connected with the sliding seat, the sliding seat is arranged on the side edge of the molding cavity in a sliding mode, the first core pulling unit comprises a first sliding core and a vertically arranged sliding block, the second core pulling unit comprises a sliding core fixing plate and a second sliding core, the sliding core fixing plate is positioned on the side edge, close to the molding cavity, of the sliding seat, one end of the first sliding core movably penetrates through the sliding core fixing plate and is connected with the sliding seat, a jacking plate which is inclined upwards is fixed at the other end of the first sliding core, the sliding block is connected with the jacking plate in a sliding mode, the second sliding core is fixed on the side surface, far away from the sliding seat, of the sliding core fixing plate, the sliding core fixing plate is movably blocked and connected with the sliding seat.
2. The mold according to claim 1, wherein the bottom of the slide block movably penetrates through the second slide core, the first slide core is positioned in the second slide core, a clamping groove is vertically arranged in the second slide core, a clamping strip is fixed on the side surface of the slide block, and the clamping groove is matched with the clamping strip.
3. The mold according to claim 1, wherein the core pulling assembly further comprises an extrusion pushing unit and a guide slide seat, the guide slide seat is provided with a slide channel, the slide seat passes through the slide channel, the upper surface of the slide seat is provided with an extrusion groove, the extrusion pushing unit comprises a pushing block and an extrusion elastic member, the extrusion elastic member is fixed in the extrusion groove, the pushing block is fixed on the extrusion elastic member, the pushing block protrudes out of the upper surface of the slide seat, the top end of the slide channel is arranged in a closed manner, the pushing block is extruded by the top end of the slide channel to be contracted into the extrusion groove, a notch is arranged on the side of the extrusion groove close to the slide core fixing plate, an extension plate is fixed on the side of the pushing block close to the slide core fixing plate, the extension plate is matched with the notch, and the extension plate is arranged to be in blocking connection with the side of the slide core fixing plate when the pushing block is extruded, the top surface that the one end of slide channel is close to the slide is equipped with the extrusion face that the slope set up, promote the piece and be close to the fitting surface that is equipped with the slope on the side of slide channel, the extrusion face cooperatees with the inclined plane.
4. The core pulling assembly according to claim 1, wherein a horizontal limiting pull rod is fixed to a side surface of the sliding core fixing plate close to the sliding seat, the limiting pull rod extends along a sliding direction of the first sliding core, a limiting channel is formed in a side surface of the sliding seat close to the sliding core fixing plate, the limiting pull rod movably penetrates through the limiting channel, a movable baffle is fixed to one end of the limiting pull rod, which is far away from the sliding core fixing plate, the diameter of the movable baffle is D1, the diameter of an opening of the limiting channel close to the sliding core fixing plate is D2, and D1 is larger than D2.
5. The core pulling assembly of claim 1, further comprising a transmission unit, wherein the transmission unit comprises a transmission sliding plate and a connection block, a slide rail is obliquely arranged on the upper surface of the transmission sliding plate, the connection block is slidably arranged on the slide rail, the slide rail is fixed on the side surface of the connection block, and the output shaft of the driving device is connected with the transmission sliding plate.
6. The core pulling assembly of claim 5, wherein a limiting convex strip is fixed to one end of the slide rail, which is far away from the driving device, and the limiting convex strip is fixed to the transmission sliding plate.
7. The core pulling assembly according to claim 1, further comprising an extrusion limiting unit, wherein an extrusion limiting groove and a clamping groove are arranged on the upper surface of the sliding seat in parallel, the clamping groove is located on the side edge of the sliding seat close to the sliding core fixing plate, the extrusion limiting unit comprises a limiting block and a limiting elastic piece, the limiting elastic piece is fixed on the upper surface of the limiting block, the limiting elastic piece is connected with the movable mold, a clamping protrusion and an extrusion protrusion are fixed on the lower surface of the limiting block, the clamping protrusion and the extrusion protrusion correspond to the clamping groove and the extrusion limiting groove respectively, and the side edge of the clamping groove and the extrusion limiting groove is an inclined surface.
8. The core pulling assembly as claimed in claim 1, wherein a fixing rod is fixed on a side surface of the sliding core fixing plate close to the molding cavity, the fixing rod extends along a sliding direction of the second sliding core, a fixing hole is formed in the second sliding core, and the fixing rod corresponds to the fixing hole.
9. The core pulling assembly as claimed in claim 1, further comprising two limiting fixing plates, wherein the two limiting fixing plates are respectively located on two opposite side edges of the sliding seat.
10. The core pulling assembly of claim 1, wherein the number of the core pulling assemblies is two, and the two core pulling assemblies are respectively located at two opposite sides of the molding cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110684247.XA CN113246414A (en) | 2021-06-21 | 2021-06-21 | Crossed secondary core-pulling mold |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110684247.XA CN113246414A (en) | 2021-06-21 | 2021-06-21 | Crossed secondary core-pulling mold |
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| CN113246414A true CN113246414A (en) | 2021-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110684247.XA Pending CN113246414A (en) | 2021-06-21 | 2021-06-21 | Crossed secondary core-pulling mold |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114986752A (en) * | 2022-06-02 | 2022-09-02 | 昆山联滔电子有限公司 | Double-inclination reverse-buckling die |
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2021
- 2021-06-21 CN CN202110684247.XA patent/CN113246414A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114986752A (en) * | 2022-06-02 | 2022-09-02 | 昆山联滔电子有限公司 | Double-inclination reverse-buckling die |
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