CN212239140U - Front mould tunnel slide locking structure and die-casting die - Google Patents

Abstract

The utility model discloses a capable position locking structure of front mould tunnel and die casting die. The front mould tunnel slide locking structure comprises a movable mould plate and a fixed mould plate matched with the movable mould plate, wherein a core pulling guide groove is formed between the movable mould plate and the fixed mould plate, a front mould tunnel slide seat capable of sliding transversely is arranged in the core pulling guide groove, and the fixed mould plate or the movable mould plate is provided with a clamping lock.

Description

Front mould tunnel slide locking structure and die-casting die

[ technical field ] A method for producing a semiconductor device

The utility model relates to a die casting die technical field, concretely relates to capable position locking structure of front mould tunnel and die casting die.

[ background of the invention ]

The core-pulling forming of the front mould tunnel of most of the die-casting molds in the market at present directly utilizes the push-pull force of an oil cylinder to drive the slide structure to form, and the forming structure has the defect that the slide of the front mould tunnel is easy to retreat. Specifically, when the oil cylinder is directly used, when molten metal is injected into the molding cavity, a relatively large reverse acting force is generated on the slide of the front mold tunnel, and the reverse acting force is directly resisted by the thrust of the oil cylinder. In the process of instant acting force, the oil cylinder can generate a small amount of backward phenomenon, and the front die tunnel slide connected with the oil cylinder can also backward, so that the die-casting product is badly formed, and the operation of a post-processing procedure is increased. And the phenomenon that the running structure of the front mould tunnel is unstable in operation and production, easy to block and the like is caused, and the production efficiency is reduced. The application provides a front mould tunnel slide locking structure and die casting die who has this structure has solved this trade difficult problem well.

[ Utility model ] content

An object of the utility model is to provide a slide locking structure in front mould tunnel solves current die casting die and leads to the fact the bad problem of die-casting product shaping because of the slide of front mould tunnel moves back the position easily.

In order to solve the above problem, the utility model provides a technical scheme as follows: the front mould tunnel slide locking structure comprises a movable mould plate and a fixed mould plate which is arranged on the movable mould plate and matched with the movable mould plate, wherein a core-pulling guide groove is formed between the movable mould plate and the fixed mould plate, a front mould tunnel slide seat capable of sliding transversely is arranged in the core-pulling guide groove, and the fixed mould plate or the movable mould plate is provided with a locking mechanism for locking the front mould tunnel slide seat.

The push locking mechanism comprises a bent pin which penetrates through the fixed template, the front mold tunnel slide seat and the movable template to longitudinally lock the front mold tunnel slide seat in a locking manner, and a first driving piece which drives the bent pin to longitudinally move so as to push the front mold tunnel slide seat to transversely move.

The angle pin includes first spacing end, with first spacing end connect and with the central axis of first spacing end length direction is the top of acute angle setting push away inclined plane end and with the spacing end of second that the top pushes away inclined plane end and connects, the central axis of the spacing end length direction of second with the central axis of top push away inclined plane end becomes the acute angle setting, the spacing end of second is to keeping away from the direction of first spacing end with the spacing end parallel extension of second, be equipped with the confession on the fixed die board the first spacing chamber that first spacing end card was gone into, be equipped with the confession on the preceding die tunnel slide seat the top of pushing away the activity of inclined plane end pushes away the chamber, be equipped with the confession on the movable die board the spacing chamber of second that the spacing end card was gone into.

The pushing inclined plane end is provided with an ejection inclined plane which pushes the front mould tunnel slide seat outwards along the core-pulling guide groove and an ejection inclined plane which pushes the front mould tunnel slide seat inwards along the core-pulling guide groove, and the pushing cavity is provided with a push-out inclined plane matched with the ejection inclined plane and a push-in inclined plane matched with the ejection inclined plane.

The first limiting cavity is internally provided with a fixed die guide sleeve for limiting the longitudinal movement of the first limiting end, and the second limiting cavity is internally provided with a movable die guide sleeve for limiting the longitudinal movement of the second limiting end.

The second limit end comprises a transition limit part connected with the pushing inclined plane end and a vertical part connected with the transition limit part and extending to the first driving part, and the inner diameter of the cross section of the transition limit part from the pushing inclined plane end to the vertical part is gradually increased to be equal to the inner diameter of the cross section of the vertical part.

The ejection inclined plane and the ejection inclined plane of the bent pin are provided with crossed oil grooves which are arranged in a crossed mode and communicated with each other, and communicated oil grooves which enable the crossed oil grooves to be communicated are arranged at the crossed position of the ejection inclined plane and the side face of the bent pin.

And the front mould tunnel slide seat is provided with a limiting screw for limiting the sliding range of the front mould tunnel slide seat, and the limiting screw is provided with a spring for assisting in pulling the front mould tunnel slide seat.

The utility model also provides a die casting die has the capable position locking structure of foretell front mould tunnel.

The die-casting die comprises a bottom plate, wherein a movable die plate is arranged on the bottom plate, a forming cavity for forming a preset part is arranged between the movable die plate and a fixed die plate, a fixed die core for assisting the forming of the preset part and connected with the fixed die plate and a movable die core connected with the movable die plate are arranged in or around the forming cavity, a front die tunnel slide insert connected with a front die tunnel slide seat is arranged between the fixed die core and the movable die core, and the front die tunnel slide insert stretches into or keeps away from the forming cavity along with the sliding of the front die tunnel slide seat; a slide seat is arranged between the fixed template and the movable template, the slide seat is connected with a second driving mechanism for driving the slide seat to move, an inclined guide post for driving the slide seat to laterally loose core is arranged between the fixed template and the slide seat, a shovel base for pressing the slide seat is arranged between the fixed template and the slide seat, and a slide insert for assisting the forming of preset parts is arranged between the slide seat and the forming cavity; and the fixed die plate is provided with a fixed die exhaust plate, and the movable die plate is provided with a movable die exhaust plate.

Compared with the prior art, the utility model has the advantages of it is following:

1. the utility model discloses a front mould tunnel slide locking structure, through on movable mould board or fixed die plate longitudinal push lock mechanism come kayser front mould tunnel slide seat, push lock mechanism play the effect of longitudinal locking front mould tunnel slide seat position here promptly, prevent that front mould tunnel slide seat from receiving transversely retreating under the great reaction force in the twinkling of an eye when die-casting spare part product, just so solved current die casting die because front mould tunnel slide easily retreat the problem that die-casting product shaping is bad; meanwhile, the problem that the existing die-casting die is easy to block due to unstable operation and production of the front die tunnel slide structure is solved;

2. the utility model discloses a front mould tunnel slide locking structure, when realizing that the kayser fixes the position of front mould tunnel slide seat through the angle pin of pushing the locking mechanism, can also drive the top of angle pin through the first driving piece and push away the inclined plane end and realize transversely outwards pushing out the front mould tunnel slide seat from the guide way of loosing core and inwards push in the front mould tunnel slide seat along the guide way of loosing core transversely, a thing is dual-purpose, and material saving also makes things convenient for the operation; the cross oil grooves which are arranged on the surfaces of the bent pins in a cross mode and are mutually communicated enable lubricating oil to be uniformly distributed on the surfaces of the bent pins pushing the movable template or the fixed template, the communicated oil grooves are convenient for injecting the lubricating oil into the cross oil grooves on the bent pins, the lubricating oil can flow into the cross oil grooves at any positions on the bent pins, the smooth surfaces of the bent pins of the cross oil grooves can ensure smooth and convenient movement of the bent pins, and the bent pins are prevented from being damaged or blocked due to overlarge friction force;

3. the utility model discloses a die casting die makes the capable position of front mould tunnel can not retreat at mould die-casting in-process through the capable position locking structure of front mould tunnel that sets up for the problem that the die-casting product that the easy position of moving back of front mould tunnel caused is bad, increases the postprocessing procedure can not appear among the mould die-casting process, improves production efficiency, and to a great extent has reduced the manufacturing cost in the aspect of bad product, reworking operation and maintenance of equipment, improves the economic benefits of enterprise.

[ description of the drawings ]

Fig. 1 is a perspective view of a die casting mold according to an embodiment of the present invention.

Fig. 2 is a first internal structure diagram of a die-casting mold according to an embodiment of the present invention.

Fig. 3 is a second internal structure diagram of the die casting mold according to the embodiment of the present invention.

Fig. 4 is a cross-sectional view of the steps of the embodiment of the present invention.

Fig. 5 is a cross-sectional view of an embodiment of the present invention along section line C-C.

Fig. 6 is a cross-sectional view of the push lock structure according to the embodiment of the present invention when the die casting mold is closed.

Fig. 7 is a cross-sectional view of the push lock structure according to the embodiment of the present invention when the die casting mold is opened.

Fig. 8 is a sectional view of the pushing cavity according to the embodiment of the present invention.

Fig. 9 is a cross-sectional view of a bending pin according to an embodiment of the present invention.

Fig. 10 is an enlarged view of a partial structure M in fig. 2.

[ detailed description ] embodiments

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b): as shown in fig. 1 to 10, the present embodiment provides a die casting mold having the front mold tunnel slide locking structure, which includes a base plate 005 and a front mold tunnel slide locking structure, the front mould tunnel slide locking structure comprises a movable mould plate 002 arranged on the bottom plate 005 and a fixed mould plate 001 arranged on the movable mould plate 002 and matched with the movable mould plate 002, the movable mould plate 002 is connected with the bottom plate 005 through a support column 006, a core-pulling guide groove 007 is arranged between the fixed mould plate 001 and the movable mould plate 002, a front mould tunnel slide seat 302 capable of sliding transversely is arranged in the core-pulling guide groove 007, a front mould tunnel slide insert 103 is connected on the front mould tunnel slide seat 302, a traveling seat 305 is arranged between the fixed die plate 001 and the movable die plate 002, the traveling seat 305 is connected with a second driving mechanism 310, and the second driving mechanism 310 is used for driving the traveling seat 305 to move. A molding cavity for die-casting preset parts is arranged between the movable template 002 and the fixed template 001, and a fixed mold core 101 which is used for assisting the molding of the preset parts and is connected with the fixed template 001 and a movable mold core 102 connected with the movable template 002 are arranged in or around the molding cavity; the preset part product is formed by a forming cavity surrounded by the fixed mold core 101, the movable mold core 102, the front mold tunnel slide insert 103, the slide insert 104 and the like, and the shape of the forming cavity can be designed into different shapes according to the part product required in practice. The front mould tunnel slide seat 302 is located on one side of the fixed mould core 101 and the movable mould core 102, the front mould tunnel slide insert 103 is arranged between the fixed mould core 101 and the movable mould core 102, the front mould tunnel slide insert 103 extends into or is far away from the forming cavity along with the sliding of the front mould tunnel slide seat 302, the movable mould plate 002 or the fixed mould plate 001 is provided with a push locking mechanism for longitudinally locking the front mould tunnel slide seat 302, and in the embodiment, the push locking mechanism is arranged on the movable mould plate 002.

The die-casting die of the embodiment locks the front die tunnel slide seat by arranging the longitudinal push-lock mechanism on the movable die plate, namely the push-lock mechanism plays a role in longitudinally locking the position of the front die tunnel slide seat, so that the front die tunnel slide seat is prevented from transversely moving backwards under the action of instant large reaction force when die-casting a part product, and the problem of poor die-casting product forming caused by easy retreat of the front die tunnel slide of the existing die-casting die is solved; meanwhile, the problem that the existing die-casting die is easy to block due to unstable operation and production caused by the retreating of the front die tunnel slide structure is solved.

In this embodiment, the second driving mechanism 310 is a cylinder, and the seat 305 is connected to the second driving mechanism through a cylinder connector 311, so that the second driving mechanism drives the seat to move. The fixed die plate 001 is provided with a fixed die exhaust plate 312 so as to discharge hot gas generated by the fixed die plate in time. And a movable mold exhaust plate 313 is arranged on the movable mold plate 002 so as to exhaust hot air generated by the movable mold plate in time. In this embodiment, three fixed mold vent plates 312 are provided on the fixed mold plate, and 3 movable mold vent plates 313 are provided on the movable mold plate, so that the hot gas can be discharged out of the die casting mold more uniformly and rapidly.

The push locking mechanism comprises a fixed template 001, a front mould tunnel slide seat 302 and a first driving piece 309, wherein the movable template 002 penetrates through the fixed template, the front mould tunnel slide seat 302 is longitudinally clamped and locked by a bent pin 301 of the front mould tunnel slide seat 302 and drives the bent pin 301 to longitudinally move, and the bent pin 301 is used for longitudinally locking the front mould tunnel slide seat 302 and preventing the front mould tunnel slide seat 302 from transversely moving and retreating due to large instantaneous reaction force when molten metal is injected. In this embodiment, the first driving member 309 is an oil cylinder, the bending pin 301 is connected with the first driving member 309 through an oil cylinder connector 306, and the first driving member is fixed on the base plate 005 through screws. The telescopic motion of the first driving member drives the bending pin 301 to perform telescopic motion in the first limiting cavity 001a, the pushing cavity 302a and the second limiting cavity 002 a. Of course, the first driving member may be other driving components such as a cylinder or a piston, and the purpose of driving the bent pin to ascend or descend may be achieved.

As shown in fig. 8 and fig. 9, the curved pin 301 includes a first limiting end 301a, a pushing inclined plane end 301b connected to the first limiting end 301a and disposed at an acute angle with the central axis of the first limiting end 301a in the length direction, and a second limiting end 301c connected to the pushing inclined plane end 301b, the central axis of the second limiting end 301c in the length direction and the central axis of the pushing inclined plane end 301b are disposed at an acute angle, the second limiting end 301c extends in parallel with the second limiting end 301c in the direction away from the first limiting end 301a, a first limiting cavity 001a for the first limiting end 301a to be inserted is disposed on the fixed die plate 001, a pushing cavity 302a for the pushing inclined plane end 301b to move is disposed on the front die tunnel seat 302, a second limiting cavity 002a for the second limiting end 301c to be inserted is disposed on the movable die plate 002, the first limit end of the bent pin is matched with the first limit cavity 001a on the fixed template 001, the pushing inclined plane end of the bent pin is matched with the pushing cavity 302a on the front-mold tunnel slide seat 302, and the second limit end of the bent pin is matched with the second limit cavity on the movable template 002, so that the bent pin can be locked and fixed on the front-mold tunnel slide seat, and the front-mold tunnel slide seat is prevented from retreating in the die-casting process.

The second limiting end 301c includes a transition limiting portion 301c1 connected to the ejection bevel end 301b and a vertical portion 301c2 connected to the transition limiting portion 301c1 and extending to the first driving member 309, the cross-sectional inner diameter of the transition limiting portion 301c1 from the ejection bevel end 301b to the vertical portion 301c2 gradually increases to be equal to the cross-sectional inner diameter of the vertical portion 301c2, such as the transition limiting portion 301c1 indicated by the dotted line in fig. 9, so that the ejection cavity clamped into the front mold tunnel slide seat after the curved pin is ejected by the first driving member can limit the curved pin from moving upwards.

As shown in fig. 9, the pushing inclined plane end 301B is provided with a pushing inclined plane a for pushing the front mold tunnel slide seat 302 out along the core-pulling guide groove and a pushing inclined plane B for pushing the front mold tunnel slide seat 302 inward along the core-pulling guide groove. As shown in fig. 8, the pushing cavity 302a is provided with a pushing inclined surface 302a1 adapted to the ejecting inclined surface a and a pushing inclined surface 302a2 adapted to the pushing inclined surface B, and the front mold tunnel slide seat is laterally ejected outwards or pushed inwards along the core-pulling guide groove by the inclined surface of the bent pin pushing inclined surface end in the longitudinal moving process of the bent pin.

Specifically, as shown in fig. 6 and 7, when the mold is opened, the bending pin moves downward under the pulling of the first driving member, and the acting force generated by the inclined surface a of the bending pin and the front mold tunnel slide seat 302 causes the ejection inclined surface a at the end of the ejection inclined surface to eject the ejection inclined surface 302a1 on the front mold tunnel slide seat 302, so as to force the front mold tunnel slide seat 302 to slide and disengage laterally and outwardly in a direction away from the molding cavity. When the die is closed, the bent pin moves upwards under the driving of the first driving piece, the bent pin pushes the core-pulling guide groove of the front die tunnel slide seat to move transversely to the direction of the forming cavity under the action of the acting force of the first driving piece and the die-casting machine die closing action, the pushing-in inclined plane B at the end of the bent pin pushing-in inclined plane pushes the pushing-in inclined plane 302a2 on the front die tunnel slide seat 302, so that the front die tunnel slide seat 302 moves towards the direction close to the forming cavity until the die closing process is completed, and the die-casting forming of a preset part product is performed.

As shown in fig. 4 and 6, when molten metal is injected into the molding cavity at a certain pressure, the front mold tunnel slide seat is subjected to a relatively large instantaneous reverse pressure, so that the front mold tunnel slide seat tends to move outwards. At this time, an acting force is generated between the inclined plane B of the bending pin and the front mold tunnel slide seat, and the bending pin presses the front mold tunnel slide seat like a shovel base, so that the front mold tunnel slide seat 302 is prevented from retreating. Therefore, the function of locking the front mould tunnel slide seat is achieved, and the problem that the common front mould tunnel slide structure on the market is easy to retreat to cause bad castings is solved.

As shown in fig. 4, a fixed die guide sleeve 314 for limiting the longitudinal movement of the first limit end 301a is arranged in the first limit cavity 001a, a movable die guide sleeve 315 for limiting the longitudinal movement of the second limit end 301c is arranged in the second limit cavity 002a, and the fixed die guide sleeve 314 and the movable die guide sleeve 315 provide precise guidance for the movement of the bending pin, so as to ensure the precision of the die casting mold for manufacturing preset part products.

As shown in fig. 2 and fig. 10, the curved pin 301 is provided with a cross oil groove 301d which is arranged and communicated in a cross manner, the ejection inclined plane a and the ejection inclined plane B are arranged at the intersection of the side surfaces of the curved pin 301 to make the cross oil groove 301e communicated with the cross oil groove 301d, the cross oil groove which is arranged on the surface of the curved pin in a cross manner and communicated with each other makes lubricating oil be uniformly distributed on the surface of the curved pin for pushing the movable template or the fixed template, the cross oil groove is convenient for injecting the lubricating oil into the cross oil groove on the curved pin, so that the lubricating oil can flow into the cross oil groove at any position on the curved pin, the smooth surface of the curved pin of the cross oil groove can ensure smooth and convenient movement of the curved pin, and avoid the friction force from excessively damaging.

As shown in fig. 1 and fig. 4, the front mold tunnel seat 302 is provided with a limit screw 308 for limiting the sliding range thereof, and the limit screw 308 is provided with a spring 307 for assisting in pulling the front mold tunnel seat 302, so that the spring 307 can play a role in assisting in pulling the front mold tunnel seat in the mold opening process.

As shown in fig. 4, an inclined guide post 303 for driving the traveling seat 305 to laterally loose core is disposed between the fixed die plate 001 and the traveling seat 305, a shovel base 304 for pressing the traveling seat 305 is disposed between the fixed die plate 001 and the traveling seat 305, and the shovel base 304 is used for pressing the traveling seat 305, so that the die cannot easily move after being fitted, and the dimensional accuracy of the manufactured die-casting product is ensured to be qualified. A slide insert 104 for assisting in molding of the preset part is arranged between the slide seat 305 and the molding cavity, and the slide insert 104 is used for forming a preset structure of the preset part, such as a barb, a groove or a hole.

As shown in fig. 4, the front mold tunnel slide insert 103 is used to form a predetermined structure of a predetermined component, such as a barb, a groove, or a hole. In this embodiment, the front mold tunnel slide insert 103 is fixedly connected to the front mold tunnel slide base 302 by a pin 316, and both of them move together along the core back guide groove 007.

As shown in fig. 3, the fixed mold plate 001 is further provided with a stop 317, a travel switch 318 for controlling the elevation of the first driving mechanism, and a travel collision block 319 in contact fit with the travel switch, in this embodiment, two travel collision blocks 319 are provided, one is close to the first limiting cavity 001a, and the other is arranged outside the travel collision block close to the first limiting cavity. The travel bumps 319 are used for contacting and matching with the travel switches, and when the travel switches contact with one of the travel bumps, the first driving member can be stopped from rising, and when the travel switches contact with the other travel bump, the first driving member can be controlled to fall. The stop 317 acts as a limit to limit the distance between the fixed and movable die plates and prevent them from coming too close together.

Still be equipped with thimble push pedal 004 on the bottom plate 005, be equipped with thimble fixed plate 003 on the thimble push pedal, thimble fixed plate 003 is used for fixing thimble push pedal 004 makes thimble push pedal 004 can only move the spare part product of predetermineeing in the ejecting shaping intracavity in one direction.

The die-casting die with the front-die tunnel slide locking structure is characterized in that the front-die tunnel slide seat is longitudinally locked by the longitudinal push locking mechanism arranged on the movable die plate, namely the push locking mechanism plays a role in locking the front-die tunnel slide seat, an acting force is generated between the inclined surface B of the bent pin and the front-die tunnel slide seat, the bent pin presses the front-die tunnel slide seat like a shovel base, and the front-die tunnel slide seat is prevented from retreating under an instantaneous large reaction force when a part product is die-cast, so that the problems that the existing die-casting die is poor in die-casting products due to the fact that the front-die tunnel slide is easy to transversely move and retreat are solved, the problems that the die-casting products are poor and the post-processing procedures are increased due to the fact that the front-die tunnel slide is easy to retreat are solved in the die-casting process of the die, the production efficiency is improved, and the defective products are reduced to a great extent, The production cost in aspects of reworking operation, equipment maintenance and the like is increased, and the economic benefit of enterprises is improved. The front mould tunnel slide seat can be pushed out from the core-pulling guide groove outwards and pushed inwards along the core-pulling guide groove transversely through the pushing inclined plane end of the bent pin, so that the dual purposes are achieved, materials are saved, and the operation is convenient; the oil grooves which are arranged on the surfaces of the bent pins in a crossed mode and communicated with each other enable lubricating oil to be uniformly distributed on the surfaces of the bent pins, the smooth surfaces of the bent pins can guarantee smooth and convenient movement, and the bent pins are prevented from being damaged or blocked due to excessive friction force. The fixed die guide sleeve 314 and the movable die guide sleeve 315 provide accurate guide for the movement of the bending pin, and the precision of the die-casting die for manufacturing preset parts is ensured.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. Preceding mould tunnel slide locking structure, include movable mould board (002) and locate movable mould board (002) go up with movable mould board (002) assorted fixed die plate (001), its characterized in that: the core-pulling mechanism is characterized in that a core-pulling guide groove (007) is formed between the movable die plate (002) and the fixed die plate (001), a front die tunnel travelling seat (302) capable of sliding transversely is arranged in the core-pulling guide groove (007), and a locking mechanism is arranged on the fixed die plate (001) or the movable die plate (002) and used for locking the front die tunnel travelling seat (302).

2. The front mold tunnel slide locking structure according to claim 1, wherein: the push locking mechanism comprises a bent pin (301) penetrating through the fixed template (001), the front mould tunnel travelling seat (302) and the movable template (002) for longitudinally clamping the front mould tunnel travelling seat (302) and a first driving piece (309) driving the bent pin (301) to longitudinally move so as to push the front mould tunnel travelling seat (302) to transversely move.

3. The front mold tunnel slide locking structure according to claim 2, wherein: the bent pin (301) comprises a first limit end (301a), a pushing inclined plane end (301b) connected with the first limit end (301a) and arranged at an acute angle with the central axis of the first limit end (301a) in the length direction and a second limit end (301c) connected with the pushing inclined plane end (301b), the central axis of the second limit end (301c) in the length direction and the central axis of the pushing inclined plane end (301b) are arranged at an acute angle, the second limit end (301c) is far away from the first limit end (301a) in the direction and extends in parallel with the second limit end (301c), a first limit cavity (001a) for the first limit end (301a) to be clamped is arranged on the fixed die plate (001), a pushing cavity (302a) for the pushing end (301b) to move is arranged on the front die tunnel slide seat (302), and a second limiting cavity (002a) for the second limiting end (301c) to be clamped in is arranged on the movable template (002).

4. The front mold tunnel slide locking structure according to claim 3, wherein: push away top inclined plane end (301B) be equipped with will anterior mould tunnel position seat (302) are followed loose core guide way (007) transversely outwards push out ejecting inclined plane (A) and will anterior mould tunnel position seat (302) are followed the top that guide way (007) transversely inwards pushed away of loosing core goes into inclined plane (B), push away chamber (302a) be equipped with push out inclined plane (302a1) and with push up the push inclined plane (302a2) of going into inclined plane (B) looks adaptation.

5. The front mold tunnel slide locking structure according to claim 3, wherein: a fixed die guide sleeve (314) for limiting the longitudinal movement of the first limiting end (301a) is arranged in the first limiting cavity (001a), and a movable die guide sleeve (315) for limiting the longitudinal movement of the second limiting end (301c) is arranged in the second limiting cavity (002 a).

6. The front mold tunnel slide locking structure according to claim 3, wherein: the second limit end (301c) comprises a transition limit part (301c1) connected with the pushing inclined plane end (301b) and a vertical part (301c2) connected with the transition limit part (301c1) and extending to the first driving part (309), and the transition limit part (301c1) gradually increases from the inner diameter of the section of the pushing inclined plane end (301b) to the inner diameter of the section of the vertical part (301c2) to be equal to the inner diameter of the section of the vertical part (301c 2).

7. The front mold tunnel slide locking structure according to claim 4, wherein: the ejection inclined plane (A) and the jacking inclined plane (B) of the bent pin (301) are provided with crossed oil grooves (301d) which are arranged in a crossed mode and communicated with each other, and the intersection of the ejection inclined plane (A) and the jacking inclined plane (B) and the side face of the bent pin (301) is provided with a communication oil groove (301e) which is communicated with the crossed oil groove (301 d).

8. The front mold tunnel slide locking structure according to claim 1, wherein: the front mould tunnel slide seat (302) is provided with a limiting screw (308) for limiting the sliding range of the front mould tunnel slide seat, and the limiting screw (308) is provided with a spring (307) for assisting in pulling the front mould tunnel slide seat (302).

9. Die casting die, its characterized in that: the front mold tunnel slide locking structure of any one of claims 1 to 8.

10. The die casting mold of claim 9, wherein: the movable mould plate (002) is arranged on the bottom plate (005), a forming cavity for forming preset parts is arranged between the movable mould plate (002) and the fixed mould plate (001), a fixed mould core (101) which is used for assisting the forming of the preset parts and is connected with the fixed mould plate (001) and a movable mould core (102) connected with the movable mould plate (002) are arranged in the forming cavity or on the peripheral side of the forming cavity, a front mould tunnel slide insert (103) connected with the front mould tunnel slide seat (302) is arranged between the fixed mould core (101) and the movable mould core (102), and the front mould tunnel slide insert (103) stretches into or keeps away from the forming cavity along with the sliding of the front mould tunnel slide seat (302); a walking seat (305) is arranged between the fixed die plate (001) and the movable die plate (002), the walking seat (305) is connected with a second driving mechanism (310) for driving the walking seat (305) to move, an inclined guide post (303) for driving the walking seat (305) to laterally loose core is arranged between the fixed die plate (001) and the walking seat (305), a shovel base (304) for pressing the walking seat (305) is arranged between the fixed die plate (001) and the walking seat (305), and a walking insert (104) for assisting the molding of preset parts is arranged between the walking seat (305) and the molding cavity; the fixed die plate (001) is provided with a fixed die exhaust plate (312), and the movable die plate (002) is provided with a movable die exhaust plate (313).

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