Bidirectional core-pulling mechanism

Abstract

The utility model provides a bi-directional core-pulling mechanism, which relates to the technical field of die-casting formation, and comprises a core-pulling driving piece, a connecting rod, a sliding seat, a first limiting structure, an inner sliding block, a locking block, an inclined guide pillar and a second limiting structure, the bi-directional core-pulling mechanism is simple in structure and reasonable in design, a die is opened after die-casting is completed, and an upper die drives the locking block to open the die and withdraw; the core-pulling driving piece drives the connecting rod to drive the inclined guide column to act, so that the inner sliding block achieves the core-pulling function, the sliding seat is prevented from being driven and pulling a product in the first core-pulling process through limiting of the second limiting structure, then the core-pulling driving piece drives the connecting rod to drive the sliding seat to conduct core-pulling action, and the limiting function is achieved through the first limiting structure. Therefore, better bidirectional core pulling is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of die casting, in particular to a bidirectional core-pulling mechanism. BACKGROUND

[0002] The die casting mold is composed of an upper mold and a lower mold connected by clamping, and the product is formed by the internal forming cavity. The design often needs to be customized according to the shape and size of the product. In some cases, in order to solve the demolding problem caused by the structure characteristics such as the side reverse buckling or hole position and deep cavity of the product, such as the new energy die casting workpiece, there are hole positions and deep cavities on the side. In order to realize the smooth demolding of the product and ensure the durability of the mold, a bidirectional core-pulling mechanism is needed, which can adapt to more complex product shapes and ensure that the mold can be accurately formed and smoothly demolded.

[0003] However, the existing bidirectional core-pulling mechanism is mostly directly core-pulling through a sliding block, but a reasonable limiting structure is not set, and the product may be damaged.

[0004] Therefore, the present application aims to provide a bidirectional core-pulling mechanism to better solve the above technical problems. SUMMARY

[0005] The purpose of the embodiment of the present application is to provide a bidirectional core-pulling structure which can solve the technical problem of core-pulling in two different directions of the die casting mold.

[0006] The embodiment of the present application provides a bidirectional core-pulling mechanism, which comprises a core-pulling driving part, a connecting rod, a sliding seat, a first limiting structure, an inner sliding block, a locking block, an inclined guide column and a second limiting structure. The core-pulling driving part is arranged in the lower mold of the die casting mold, and the core-pulling driving part is drivingly connected with the connecting rod. The sliding seat is connected with the connecting rod. The first limiting structure is installed in the lower mold of the die casting mold, and is used to limit the position of the sliding seat. The inner sliding block is arranged in the lower mold of the die casting mold and connected with the locking block. The locking block is also connected with the upper mold of the die casting mold. The two ends of the inclined guide column are respectively connected with the inner sliding block and the connecting rod. The second limiting structure is arranged in the lower mold of the die casting mold, and is used to limit the initial position of the sliding seat.

[0007] Further, the core-pulling driving part is an oil cylinder, which is installed in the lower mold of the die casting mold through a gasket structure.

[0008] Further, the sliding seat is provided with a pressing strip on both sides.

[0009] Further, the rear side of the sliding seat is provided with a shovel block, and the shovel block is provided with a through hole for the connecting rod to pass through.

[0010] Further, the first limiting structure comprises a travel switch and a limiting rod.

[0011] Further, the locking block is circular, and the inclined guide column is square.

[0012] Further, the second limiting structure comprises a plurality of spring positioning screws arranged at intervals.

[0013] Further, a stroke groove is arranged in the lower die of the die casting mold, and the connecting rod is provided with a protrusion matched with the stroke groove.

[0014] The utility model discloses the beneficial effect that:

[0015] The utility model provides a bidirectional core pulling mechanism, including core pulling drive part, connecting rod, sliding seat, first limiting structure, inner sliding block, locking block, inclined guide column and second limiting structure, the core pulling drive part is used for setting in the lower die of die casting mold, and the core pulling drive part is connected with the connecting rod drive, the sliding seat is connected with the connecting rod, the first limiting structure is installed in the lower die of die casting mold, for limiting the position of sliding seat, the inner sliding block sets up in the lower die of die casting mold, and is connected with the locking block, the locking block is also connected with the upper die of die casting mold, the both ends of inclined guide column are connected with the inner sliding block and the connecting rod respectively, the second limiting structure sets up in the lower die of die casting mold, for limiting the initial position of sliding seat, the utility model discloses simple structure, and reasonable in design is completed after die casting and opens the mould, and the upper die drives the locking block to open the mould and withdraws, and the core pulling drive part drives the connecting rod and drives the inclined guide column to act, makes the inner sliding block realize the core pulling function, and is positioned through the second limiting structure, prevents the sliding seat from being driven in the first core pulling process, and the product is pulled and hurt, then the core pulling drive part drives the connecting rod and drives the sliding seat to carry out the core pulling action, and is positioned through the first limiting structure, thereby better bidirectional core pulling is realized. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0017] Figure 1 It is a structural schematic view of some embodiments of the utility model;

[0018] Figure 2 It is Figure 1 It is a structural schematic view of another perspective;

[0019] Figure 3 It is a schematic view of the core pulling structure of the utility model being installed in the die casting mold;

[0020] Figure 4 The utility model discloses a core pulling structure and the connection schematic diagram of die casting die lower mould.

[0021] The reference signs are respectively:

[0022] The core pulling driving piece 1, the backing plate structure 11, the connecting rod 2, the convex 21, the sliding seat 3, the batten 31, the shovel block 32, the through hole 33, the first limit structure 4, the travel switch 41, the limit rod 42, the inner sliding block 5, the locking block 6, the inclined guide column 7, the second limit structure 8, the spring positioning screw 81, the travel groove 9, the die casting die upper mould-A, the die casting die lower mould-B. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantage of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, not all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0025] It should be noted that: similar signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0026] In the description of the present application, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship commonly placed when the product of the application is used, only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0027] In addition, the terms "horizontal", "vertical", "overhang" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that it is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0028] In the description of the present application, it should also be noted that unless otherwise explicitly specified and limited, the terms "set", "install", "connect", "connect" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] Reference Figures 1-4 As shown, the bidirectional core pulling mechanism described in the embodiment comprises a core pulling driving part 1, a connecting rod 2, a sliding seat 3, a first limiting structure 4, an inner sliding block 5, a locking block 6, an inclined guide column 7 and a second limiting structure 8. The core pulling driving part 1 is arranged in the lower mold of the die casting mold, and the core pulling driving part 1 is drivingly connected with the connecting rod 2. The sliding seat 3 is connected with the connecting rod 2. The first limiting structure 4 is installed in the lower mold of the die casting mold, and is used to limit the position of the sliding seat 3. The inner sliding block 5 is arranged in the lower mold of the die casting mold, and is connected with the locking block 6. The locking block 6 is also connected with the upper mold of the die casting mold. The two ends of the inclined guide column 7 are respectively connected with the inner sliding block 5 and the connecting rod 2. The second limiting structure 8 is arranged in the lower mold of the die casting mold, and is used to limit the initial position of the sliding seat 3.

[0030] The embodiment has simple structure and reasonable design. After die casting, the locking block 6 is driven out of the mold by the upper mold, the connecting rod 2 is driven by the core pulling driving part 1 to drive the inclined guide column 7 to move, so that the inner sliding block 5 realizes the core pulling function, and is limited by the second limiting structure 8 to prevent the sliding seat 3 from being driven during the first core pulling process and damaging the product. Then, the core pulling driving part 1 drives the connecting rod 2 to drive the sliding seat 3 to perform the core pulling action, and the first limiting structure 4 realizes the limiting function, so that better bidirectional core pulling is realized. When the mold is closed, the action is performed in reverse order.

[0031] In some embodiments, the core pulling driving part 1 is arranged as an oil cylinder, and the oil cylinder is installed in the lower mold of the die casting mold through a gasket structure 11.

[0032] In the embodiment, the oil cylinder is used as the core pulling driving part 1, which can provide stable and powerful driving force to ensure the smooth performance of the core pulling action. The gasket structure 11 enhances the connection stability of the oil cylinder and the lower mold of the mold, preventing damage caused by uneven stress.

[0033] Some embodiments, the slide 3 is provided with a pressing strip 31 on both sides.

[0034] The setting of the pressing strip 31 in this embodiment can enhance the stability of the slide 3, prevent the slide 3 from deviating or shaking due to uneven force during the core-pulling process, and ensure the accuracy of the core-pulling action.

[0035] Some embodiments, the rear side of the slide 3 is provided with a shovel block 32, and the shovel block 32 is provided with a through hole 33 for the connecting rod 2 to pass through.

[0036] The setting of the shovel block 32 and the through hole 33 in this embodiment enables the connecting rod 2 to smoothly pass through and connect with the slide 3, and the shovel block 32 also plays a guiding and supporting role, ensuring the smooth movement of the slide 3 during the core-pulling process.

[0037] Some embodiments, the first limiting structure 4 includes a travel switch 41 and a limiting rod 42.

[0038] The combination of the travel switch 41 and the limiting rod 42 in this embodiment can accurately control the movement distance of the slide 3, prevent the slide 3 from exceeding the predetermined travel range during the core-pulling process, and thus protect the mold and the core-pulling mechanism from precise core-pulling and avoid damaging the product during the core-pulling process.

[0039] Some embodiments, the locking block 6 is circular, and the inclined guide column 7 is square.

[0040] In this embodiment, the locking block 6 is set to be circular to facilitate the opening of the upper die and the unlocking of the inner slide block 5, thereby realizing the first core-pulling, and the square inclined guide column 7 is set to have good stability during core-pulling.

[0041] Some embodiments, the second limiting structure 8 includes a plurality of spring positioning screws 81 arranged at intervals.

[0042] In this embodiment, the spring positioning screw 81 can accurately limit the initial position of the slide 3, prevent the slide 3 from moving or deviating before the first core-pulling is completed, and damage the product.

[0043] Some embodiments, further including a travel groove 9, the travel groove 9 is arranged in the lower die of the die casting mold, and the connecting rod 2 is provided with a protrusion 21 matched with the travel groove 9.

[0044] In this embodiment, the cooperation of the travel groove 9 and the protrusion 21 can further accurately control the movement distance of the connecting rod 2, realizing the precise control of the travel during the first core-pulling process.

[0045] The above merely provides preferred embodiments of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the principles and technical scope of the present application shall fall into the scope of the present application.

Claims

1. A two-way core-pulling mechanism characterized by: The core-pulling driving part, the connecting rod, the sliding seat, the first limiting structure, the inner sliding block, the locking block, the inclined guide column and the second limiting structure are arranged in the lower die of the die casting mold, the core-pulling driving part is connected with the connecting rod, the sliding seat is connected with the connecting rod, the first limiting structure is arranged in the lower die of the die casting mold and is used for limiting the position of the sliding seat, the inner sliding block is arranged in the lower die of the die casting mold and is connected with the locking block, the locking block is connected with the upper die of the die casting mold, the two ends of the inclined guide column are connected with the inner sliding block and the connecting rod respectively, and the second limiting structure is arranged in the lower die of the die casting mold and is used for limiting the initial position of the sliding seat.

2. The dual-action core-pulling mechanism according to claim 1, characterized in that: The core-pulling driving part is an oil cylinder, and the oil cylinder is arranged in the lower die of the die casting mold through a gasket structure.

3. The dual-action core-pulling mechanism of claim 1, wherein: The sliding seat is provided with a pressing strip on both sides.

4. The dual-action core-pulling mechanism of claim 1, wherein: The rear side of the sliding seat is provided with a shovel block, and the shovel block is provided with a through hole for the connecting rod to pass through.

5. The dual-action core-pulling mechanism of claim 1, wherein: The first limiting structure comprises a travel switch and a limiting rod.

6. The dual-action core-pulling mechanism of claim 1, wherein: The locking block is circular, and the inclined guide column is square.

7. The two-way core-pulling mechanism of claim 1, wherein: The second limiting structure comprises a plurality of spring positioning screws arranged at intervals.

8. The dual-action core-pulling mechanism of claim 1, wherein: A travel groove is arranged in the lower die of the die casting mold, and the connecting rod is provided with a protrusion matched with the travel groove.

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