A kind of inclined top core pulling device for automatic casting

Abstract

The present invention provides a slanted top core pulling device for automatic casting, comprising a support frame, a lifting assembly is provided below the support frame, and the lifting assembly is connected to a lifting drive mechanism; the lifting assembly comprises a lifting part and a hook part, and the hook part is symmetrically arranged on the side of the lifting part; the support frame is symmetrically provided with a limit column below; the two opposite sides of the support frame are provided with a limit guide block, and the limit guide block is provided with a slide groove, and the hook part can move inside the slide groove; it also includes a first push rod and a second push rod, and the lower ends of the first push rod and the second push rod are respectively arranged in the lifting part. The mold core only needs to be connected with the slanted top core pulling device of the present invention, which can not only realize the complete separation between the metal T-shaped connector and the mold core, avoid the operation of manual knocking, but also avoid the side mold of the mold core, and can be clamped after the casting is completed, saving time and labor, and improving the automation degree of the equipment.

Description

Technical Field

[0001] The present application belongs to the technical field of metal parts processing equipment, and in particular relates to an inclined top core pulling device that can be applied to automated casting metal T-joint equipment. Background Art

[0002] The Chinese patent number 2019201536033 "A mold inclined top core pulling device" discloses an inclined top core pulling device used in conjunction with a metal mold core for semi-automatic production of metal connectors. The technical solution of this patent only realizes the displacement between the side mold and the core part of the mold core when connected to the mold core for casting production, lifts up the newly cast product, and replaces part of the manual production process through the equipment, but cannot achieve complete separation of the mold core from the cast metal part, and still requires manual operation, and cannot achieve automatic demolding of the product.

[0003] Specifically, in the actual production and processing process, the inclined top core pulling device provided by the above patented technical solution often requires manual use of a hammer or the like to knock the guide rod on the side mold of the mold core when connected to the mold core for processing, so that the guide rod drives the side mold and the metal T-shaped connector to vibrate and loosen, and even requires the operator to manually grasp the guide rod and remove the side mold from the newly cast metal connector to achieve complete separation between the metal T-shaped connector and the mold core, so that the metal T-shaped connector can be clamped out of the mold core.

[0004] However, the strength of the artificial external force is difficult to control, and it is often necessary to knock the guide rod multiple times to achieve complete separation between the T-type connector and the mold core, which reduces production efficiency. At the same time, this artificial external force will cause irreversible deformation of the mold core and equipment components connected to the mold core, reducing the service life of the mold core, increasing the maintenance cost of production equipment, and also having a great impact on the precision of the shape of the casting product. After such operation for a long time, the product yield will also be reduced.

[0005] More importantly, if the operator manually grasps the guide rod to remove the side mold just applied to casting from the product, due to the high temperature of the side mold, even if the operator wears gloves during operation, he or she may be easily burned, which is not conducive to the safety of the operator. Summary of the invention

[0006] In view of this, the present application provides a slanted top core pulling device for automatic casting. By using the invented device, the mold core does not need to be provided with a guide rod. The mold core only needs to be connected with the slanted top core pulling device. It can achieve complete separation between the metal T-shaped connector and the mold core, avoiding manual knocking operations, and avoiding the side mold of the mold core. It can be clamped after the casting is completed, saving time and effort. At the same time, it can effectively improve the service life of the mold core, reduce the maintenance cost of the equipment, and ensure the yield rate of the product.

[0007] The technical solution of this application is:

[0008] A slanted top core pulling device for automatic casting, characterized in that it comprises a support frame, a lifting assembly is arranged below the support frame, and the lifting assembly is connected to a lifting drive mechanism; the lifting assembly comprises a lifting part and a hook part, and the hook part is symmetrically arranged on the side of the lifting part;

[0009] The two opposite sides of the support frame are provided with limiting guide blocks, and the limiting guide blocks are provided with sliding grooves, and the hook part can move inside the sliding grooves;

[0010] It also includes a first push rod and a second push rod, wherein the lower ends of the first push rod and the second push rod are respectively arranged in the lifting part.

[0011] Furthermore, limit columns are symmetrically provided under the support frame; through the setting of the limit columns, it is possible to avoid the situation where the hook portion is incompletely disengaged from the slider or excessively displaced under the action of inertia force, and to avoid the second push plate and the second push plate from urgently moving upward, causing excessive displacement of the first push rod and affecting the demoulding effect.

[0012] Furthermore, the lifting part is sequentially provided with a first push plate, a first pushing plate, a second push plate, and a second pushing plate, and the hook part is connected to the first push plate or one side of the first pushing plate; openings are symmetrically provided on both sides of the second push plate, a first slide groove is provided in the opening, a slider is provided in the first slide groove, a spring part is provided in the slider, the first slide groove is provided with a third mounting hole, and one side of the spring part is matched and connected with the third mounting hole.

[0013] Particularly, the first push plate is detachably fixedly connected to the first push plate; the second push plate is detachably fixedly connected to the second push plate. During the processing, the first push plate is fixedly connected to the first push plate; the second push plate is fixedly connected to the second push plate.

[0014] Furthermore, the lower end of the first push rod is arranged in the second push plate and abuts against the upper end surface of the second push plate; the lower end of the second push rod is arranged in the first stack plate and abuts against the upper end surface of the first push plate. Through this arrangement, the first push plate and the first push plate cooperate to drive the second push rod to move upward, and the second push plate and the second push plate cooperate to drive the first push rod to move upward.

[0015] Furthermore, the second push rod includes a rod body, the upper end of the rod body is provided with a clamping portion, the clamping portion includes symmetrically arranged clamping grooves, a connecting block arranged above the clamping groove, and one side of the connecting block is provided with a connecting end surface; the lower end of the rod body is an arc-shaped end, and the arc-shaped end is provided with a limiting hole; the side of the rod body is provided with an arc-shaped transition portion.

[0016] In the present invention, the connecting block of the clamping part of the second push rod cooperates with the clamping groove, and can be fixedly connected with the detachable buckle of the side mold of the mold core, which is convenient for disassembly and maintenance; the connecting end surface of the clamping part can contact the bottom of the cast product, providing a larger support surface during the rising process of the second push rod, which can ensure sufficient support force and ensure that the product can be pushed to move upward stably. Compared with the round rod in the prior art, the second push rod of the present invention can provide more and more stable driving force to push the product and the side mold to move upward together.

[0017] Furthermore, the first push plate is symmetrically provided with a first mounting hole, a third mounting groove is symmetrically provided on one side of the first mounting hole, a limiting shaft is provided in the third mounting groove, and the limiting shaft passes through the limiting hole. In particular, the arc-shaped transition portion of the second push rod of the present invention will cooperate with the guide groove of the guide block provided on the support plate frame for displacement, and cooperate with the setting of the arc-shaped end below the rod body, so that the rod body rotates a certain angle along the limiting shaft in the first mounting hole, which can realize the contraction of the mold core side mold inside the casting product, so that the second push rod deviates from the original motion trajectory and moves inward, and then the second push rod continues to rise to a predetermined position, so that the casting mold core is completely separated from the product.

[0018] Furthermore, the support frame is symmetrically provided with a first mounting groove, a first through hole is provided on the opposite side of the first mounting groove, second through holes are symmetrically provided on both sides of the first mounting groove, and a guide block is provided on one side of the second through hole. The first push rod can pass through the first through hole and be connected to the lower side of the first side mold of the mold core, and the second push rod can pass through the second through hole and be connected to the lower side of the second side mold of the mold core.

[0019] Particularly, the first push plate, the first push plate, the second push plate and the second push plate are all provided with through holes, which are respectively used for installing the first push rod, the second push rod, the limiting column, the driving rod and the driving axis.

[0020] Furthermore, a second mounting groove is provided in the first mounting groove, a second mounting hole is provided in the second mounting groove, and a bolt is provided in the second mounting hole; the bolt is cooperatively connected with the lower part of the core part of the mold core.

[0021] Furthermore, a guide groove is provided on one side of the guide block, and the guide groove can cooperate with the arc-shaped transition portion to cause the second push rod to deviate from the original movement path.

[0022] Furthermore, a convex portion is provided on one side of the sliding block, an inverted slope is provided on the upper side of the convex portion, and a lower side of the convex portion can be cooperatively connected with a hook portion.

[0023] Furthermore, an inclined guide surface is provided under the limit guide block, and the inclined guide surface can cooperate with the reverse slope to push the convex part of the slider inward, so that the slider moves inward along the first slide groove of the second push plate, so that the spring part is compressed and deformed, and at the same time the slider is unhooked from the hook part, thereby limiting the displacement distance of the second push plate and the second push plate.

[0024] Furthermore, the lifting drive mechanism includes a driving part, which is connected to a driving axis, and driving rods are provided on opposite sides of the driving axis. The driving axis passes through the lifting part, and one end of the driving axis is detachably fixed in the first push plate, and the driving rods are respectively connected to the four ends of the lifting part.

[0025] The present invention also provides a casting mold core connected to a slanted top core pulling device, the mold core comprising a first side mold, a second side mold, and a mold core portion, the first side mold being symmetrically connected to the two sides of the mold core portion, and the second side mold being symmetrically arranged on the two sides of the mold core; the mold core portion comprising a body, the two sides of the body being symmetrically provided with first connecting portions, and the other two sides of the body being symmetrically provided with first connecting surfaces; one side of the first side mold being provided with a connecting groove, the first connecting portion being matched and connected with the connecting groove; the second side mold being provided with a second connecting surface, the first connecting surface being matched and connected with the second connecting surface;

[0026] A semi-conical hole is provided at the lower end of the first connecting portion; a second connecting hole is provided at the bottom of the first side mold; and a T-shaped clamping groove is provided at the bottom of the second side mold;

[0027] A second connection part is fixedly connected to the lower part of the body, and a first connection hole is symmetrically arranged below the second connection part. In the present invention, the upper end of the first push rod is matched and connected with the second connection hole of the first side mold; the upper end of the second push rod is matched and connected with the clamping groove of the second side mold; a bolt is arranged in the second mounting hole; and the bolt is matched and connected with the first connection hole of the second connection part below the core part of the mold core.

[0028] The working process of the present invention is as follows: after the inclined top core pulling device for automatic casting of the present invention is connected with the casting mold core, in the first step, the driving axis, under the action of the driving part, pushes the first push plate to drive the first push plate to rise, and at the same time, under the action of the hook part, the hook part drags the convex part of the slider to pull the second push plate, and at the same time drives the second push plate to rise, at this time, the lifting part as a whole moves upward along the driving rod; under the action of the lifting part, the first push rod and the second push rod are displaced upward, and the first side mold and the second side mold of the mold core are pushed out of the mold core part by a certain distance; in the second step, the driving axis continues to rise under the action of the driving part, and the hook part continues to displace along the slide groove of the limiting guide block, at this time, the inclined guide surface of the limiting guide block cooperates with the inverted slope of the convex part of the slider to push the convex part of the slider inward, so that the slider moves inward along the first slide groove of the second push plate, so that the spring part is compressed and deformed, and at the same time, the slider is decoupled from the hook part, and the lifting drive mechanism no longer provides the second push plate and the second push plate The lifting power is provided, and the first push rod rises to a set height. At the same time, in order to avoid the effect of inertia force, the second push plate and the second push plate continue to rise, so that the first push rod is excessively displaced, and the displacement of the second push plate and the second push plate is further limited by the set limit column; at the same time, the driving shaft continues to drive the first push plate and the first push plate to rise, and then drives the second push rod to rise; the third step, when the second push rod rises to a certain distance, the arc-shaped transition part of the second push rod will cooperate with the guide groove of the guide block provided on the support plate frame, so that the second push rod deviates from the original motion trajectory and moves inward, and then the second push rod continues to rise to a predetermined position. Through this action, the second side mold can be contracted inside the casting product, so that the casting mold core is completely separated from the product; the fourth step is to clamp the product, the lifting drive mechanism drives the lifting assembly to reset, the lifting part will move the original processing station, the first push rod and the second push rod are reset, and the mold core is driven to reset; the slider is reset under the action of the spring part, and the hook part is re-hooked with the slider to repeat the next step.

[0029] The present invention is innovative in that after the second push rod rises to a certain distance, the arc-shaped transition portion of the second push rod will cooperate with the guide groove of the guide block provided on the support frame, so that the second side mold can be contracted inside the casting product, causing the second push rod to deviate from the original motion trajectory and move inward, and then the second push rod continues to rise to a predetermined position, so that the casting mold core is completely separated from the product.

[0030] By using the invented device, the mold core does not need to be equipped with a guide rod. The mold core only needs to be connected with the inclined top core pulling device, which can not only achieve complete separation between the metal T-shaped connector and the mold core, avoiding manual knocking operations, but also avoiding the need to remove the side mold of the mold core. It can be clamped after casting is completed, saving time and effort; at the same time, it can effectively improve the service life of the mold core, reduce the maintenance cost of the equipment, and ensure the yield rate of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the present invention;

[0032] Figure 2 It is a schematic diagram of the structure of the present invention in cooperation with the mold core;

[0033] Figure 3 It is a structural cross-sectional view of the processing process of the present invention;

[0034] Figure 4 It is a partial enlarged view of the cross-sectional view A of the structure of the present invention;

[0035] Figure 5 It is a partial enlarged view of the cross-sectional view B of the structure of the present invention;

[0036] Figure 6 It is a partial enlarged view of the cross-sectional view C of the structure of the present invention;

[0037] Figure 7 It is a partial enlarged view of the cross-sectional view D of the structure of the present invention;

[0038] Figure 8 It is a schematic diagram of the local structure of the present invention;

[0039] Fig. 9 It is a schematic diagram of the local structure of the present invention;

[0040] Fig.10 It is a schematic diagram of the local structure of the present invention;

[0041] Fig.11 It is a schematic diagram of the local structure of the present invention;

[0042] Fig.12 It is a structural schematic diagram of the guide block of the present invention;

[0043] Fig.13 It is a structural schematic diagram of the slider of the present invention;

[0044] Fig.14 It is a schematic structural diagram of the first push rod, the second push rod and the mold core of the present invention being cooperatively connected;

[0045] Fig.15 is a schematic structural diagram of a second push rod of the present invention;

[0046] Fig.16 It is a structural schematic diagram of the first push plate of the present invention;

[0047] Fig.17 It is a structural schematic diagram of the first push plate of the present invention;

[0048] Fig.18 It is a structural schematic diagram of the first push plate of the present invention;

[0049] Fig.19 It is a structural schematic diagram of the second push plate of the present invention;

[0050] Fig. 20 It is a structural schematic diagram of the second push plate of the present invention;

[0051] Fig.21 It is a structural schematic diagram of the second push plate of the present invention;

[0052] Fig. 22 It is a schematic diagram of the local structure of the present invention;

[0053] Fig.23 A schematic diagram of the structure of the mold core provided by the present invention;

[0054] Fig.24 A schematic diagram of the local structure of the mold core provided by the present invention. DETAILED DESCRIPTION

[0055] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0056] Example 1

[0057] A slanted top core pulling device for automatic casting, characterized in that it comprises a support frame 1, a lifting assembly 2 is arranged below the support frame, and the lifting assembly is connected to a lifting drive mechanism 3; the lifting assembly comprises a lifting part 21 and a hook part 22, and the hook part is symmetrically arranged on the side of the lifting part;

[0058] The two opposite sides of the support frame are provided with limiting guide blocks 11, and the limiting guide blocks are provided with slide grooves 111, and the hook part can move inside the slide groove;

[0059] The utility model also comprises a first push rod 4 and a second push rod 5, wherein the lower ends of the first push rod and the second push rod are respectively arranged in the lifting part.

[0060] Furthermore, limit columns 12 are symmetrically provided under the support frame; through the setting of the limit columns, it is possible to avoid the situation where the hook portion is incompletely disengaged from the slider or excessively displaced under the action of inertia force, and to avoid the second push plate and the second push plate from urgently moving upward, causing excessive displacement of the first push rod and affecting the demoulding effect.

[0061] Furthermore, the lifting portion 21 is sequentially provided with a first push plate 211, a first push plate 212, a second push plate 213, and a second push plate 214, and the hook portion is connected and fixed to one side of the first push plate; openings 2131 are symmetrically provided on both sides of the second push plate 213, a first slide groove 2132 is provided in the opening, a slider 215 is provided in the first slide groove, a spring portion 216 is provided in the slider, and a third mounting hole 2133 is provided in the first slide groove, and one side of the spring portion is matched and connected with the third mounting hole.

[0062] Particularly, the first push plate is detachably fixedly connected to the first push plate; the second push plate is detachably fixedly connected to the second push plate. During the processing, the first push plate is fixedly connected to the first push plate; the second push plate is fixedly connected to the second push plate.

[0063] Furthermore, the lower end of the first push rod is arranged in the second push plate and abuts against the upper end surface of the second push plate; the lower end of the second push rod is arranged in the first stack plate and abuts against the upper end surface of the first push plate. Through this arrangement, the first push plate and the first push plate cooperate to drive the second push rod to move upward, and the second push plate and the second push plate cooperate to drive the first push rod to move upward.

[0064] Furthermore, the second push rod 5 includes a rod body 51, the upper end of the rod body is provided with a clamping portion 52, the clamping portion includes a symmetrically arranged clamping groove 521, a connecting block 522 arranged above the clamping groove, and one side of the connecting block is provided with a connecting end surface 523; the lower end of the rod body is an arc-shaped end 511, and the arc-shaped end is provided with a limiting hole 512; the side of the rod body is provided with an arc-shaped transition portion 513.

[0065] In the present invention, the connecting block of the clamping part of the second push rod cooperates with the clamping groove, and can be fixedly connected with the detachable buckle of the side mold of the mold core, which is convenient for disassembly and maintenance; the connecting end surface of the clamping part can contact the bottom of the cast product, providing a larger support surface during the rising process of the second push rod, which can ensure sufficient support force and ensure that the product can be pushed to move upward stably. Compared with the round rod in the prior art, the second push rod of the present invention can provide more and more stable driving force, driving the product to move upward together with the side mold.

[0066] Furthermore, the first push plate 211 is symmetrically provided with a first mounting hole 2111, and a third mounting groove 2112 is symmetrically provided on one side of the first mounting hole, and a limiting shaft (not marked) is provided in the third mounting groove, and the limiting shaft passes through the limiting hole. In particular, the arc-shaped transition portion of the second push rod of the present invention will cooperate with the guide groove of the guide block provided on the support plate frame for displacement, and cooperate with the setting of the arc-shaped end below the rod body, so that the rod body rotates a certain angle along the limiting shaft in the first mounting hole, which can realize the contraction of the mold core side mold inside the casting product, so that the second push rod deviates from the original motion trajectory and moves inward, and then the second push rod continues to rise to a predetermined position, so that the casting mold core is completely separated from the product.

[0067] Furthermore, the support frame is symmetrically provided with a first mounting groove 13, a first through hole 14 is provided on the opposite side of the first mounting groove, second through holes 15 are symmetrically provided on both sides of the first mounting groove, and a guide block 16 is provided on one side of the second through hole. The first push rod can pass through the first through hole to be connected to the lower side of the first side mold of the mold core, and the second push rod can pass through the second through hole to be connected to the lower side of the second side mold of the mold core.

[0068] Particularly, the first push plate, the first push plate, the second push plate and the second push plate are all provided with through holes, which are respectively used for installing the first push rod, the second push rod, the limiting column, the driving rod and the driving axis.

[0069] Furthermore, a second mounting groove 131 is provided in the first mounting groove, a second mounting hole 132 is provided in the second mounting groove, and a bolt 133 is provided in the second mounting hole; the bolt is matched and connected with the lower part of the core part of the mold core.

[0070] Furthermore, a guide groove 161 is provided on one side of the guide block 16, and the guide groove can cooperate with the arc-shaped transition portion 513 to cause the second push rod to deviate from the original movement path.

[0071] Furthermore, a convex portion 2151 is provided on one side of the sliding block 215 , a reverse slope 2152 is provided on the upper side of the convex portion, and the lower side of the convex portion can be matched and connected with the hook portion.

[0072] Furthermore, an inclined guide surface 112 is provided under the limit guide block 11, and the inclined guide surface can cooperate with the reverse slope 2152 to push the convex part of the slider inward, so that the slider moves inward along the first slide groove of the second push plate, so that the spring part is compressed and deformed, and at the same time the slider is unhooked from the hook part, thereby limiting the displacement distance of the second push plate and the second push plate.

[0073] Furthermore, the lifting drive mechanism 3 includes a driving part 31, which is connected to a driving shaft 32, and driving rods 33 are provided on opposite sides of the driving shaft. The driving shaft passes through the lifting part, and one end of the driving shaft is detachably fixed in the first push plate, and the driving rods are respectively connected to the four ends of the lifting part.

[0074] The present invention also provides a casting mold core 6 connected to a slanted top core pulling device, the mold core comprises a first side mold 61, a second side mold 62, and a mold core portion 63, the first side mold is symmetrically connected to the two sides of the mold core portion, and the second side mold is symmetrically arranged on the two sides of the mold core; the mold core portion comprises a body 631, the two sides of the body are symmetrically provided with first connecting portions 632, and the other two sides of the body are symmetrically provided with first connecting surfaces 633; ​​one side of the first side mold is provided with a connecting groove (not marked), and the first connecting portion is matched and connected with the connecting groove; the second side mold is provided with a second connecting surface 621, and the first connecting surface is matched and connected with the second connecting surface;

[0075] A semi-conical hole 6321 is provided at the lower end of the first connecting portion; a second connecting hole 611 is provided at the bottom of the first side mold; and a T-shaped clamping groove 622 is provided at the bottom of the second side mold.

[0076] A second connection part 633 is fixedly connected to the lower part of the body, and a first connection hole 6331 is symmetrically arranged below the second connection part. In the present invention, the upper end of the first push rod is matched and connected with the second connection hole of the first side mold; the upper end of the second push rod is matched and connected with the clamping groove of the second side mold; a bolt is arranged in the second mounting hole; and the bolt is matched and connected with the first connection hole of the second connection part below the core part of the mold core.

[0077] Example 2

[0078] This embodiment provides a slanted top core pulling device for automatic casting that is consistent with Embodiment 1, except that the lifting portion 21 is sequentially provided with a first push plate 211, a first push plate 212, a second push plate 213, and a second push plate 214, and the hook portion is connected and fixed to one side of a push plate.

[0079] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0080] In addition, it should be understood that although this specification is described in accordance with the implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art. It should be noted that the technical features not described in detail in the present invention can be realized by any existing technology.

Claims

1. A core pulling device for automatic casting, characterized in that: It includes a pallet frame, a lifting assembly is provided below the pallet frame, and the lifting assembly is connected to a lifting drive mechanism; the lifting assembly includes a lifting part and a hook part, and the hook part is symmetrically arranged on the side of the lifting part; limiting guide blocks are provided on opposite sides of the pallet frame, and a slide groove is provided in the limiting guide block, and the hook part can move inside the slide groove; it also includes a first push rod and a second push rod, and the lower ends of the first push rod and the second push rod are respectively arranged in the lifting part; The lifting part is sequentially provided with a first push plate, a first pushing plate, a second push plate, and a second pushing plate, the hook part is connected to the first push plate or one side of the first pushing plate; the second push plate is symmetrically provided with openings on both sides, a first slide groove is provided in the opening, a slider is provided in the first slide groove, a spring part is provided in the slider, the first slide groove is provided with a third mounting hole, and one side of the spring part is matched and connected with the third mounting hole; The second push rod comprises a rod body, the upper end of the rod body is provided with a clamping portion, the clamping portion comprises a symmetrically arranged clamping groove, a connecting block arranged above the clamping groove, and a connecting end surface is arranged on one side of the connecting block; the lower end of the rod body is an arc-shaped end, and the arc-shaped end is provided with a limiting hole; the side of the rod body is provided with an arc-shaped transition portion; the support plate frame is symmetrically provided with a first mounting groove, a first through hole is arranged on the opposite side of the first mounting groove, second through holes are symmetrically arranged on both sides of the first mounting groove, and a guide block is arranged on one side of the second through hole; a second mounting groove is arranged in the first mounting groove, and a second mounting hole is arranged in the second mounting groove; A guide groove is provided on one side of the guide block, and the guide groove can cooperate with the arc-shaped transition portion to make the second push rod deviate from the original motion path; A convex portion is provided on one side of the slider, an inverted slope is provided on the upper side of the convex portion, and a lower side of the convex portion can be matched and connected with a hook portion; An inclined guide surface is provided below the position-limiting guide block, and the inclined guide surface can cooperate with the reverse slope.

2. The inclined top core pulling device for automatic casting according to claim 1 is characterized in that: The lower end of the first push rod is arranged in the second push plate; the lower end of the second push rod is arranged in the first stack of plates.

3. The inclined top core pulling device for automatic casting according to claim 1 is characterized in that: A first mounting hole is symmetrically arranged in the first push plate, a third mounting groove is symmetrically arranged on one side of the first mounting hole, a limiting shaft is arranged in the third mounting groove, and the limiting shaft passes through the limiting hole.

4. The inclined top core pulling device for automatic casting according to claim 1 is characterized in that: Limiting columns are symmetrically arranged below the support frame.

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