CN215614988U

CN215614988U - Detachable automatic-overturning core-pulling mechanism for metal mold

Info

Publication number: CN215614988U
Application number: CN202121506765.4U
Authority: CN
Inventors: 白金帅
Original assignee: Qingdao Kelin Aviation Technology Co ltd
Current assignee: Qingdao Kelin Aviation Technology Co ltd; Qingdao Libo Auto Parts Precision Casting Co Ltd
Priority date: 2021-07-05
Filing date: 2021-07-05
Publication date: 2022-01-25
Anticipated expiration: 2031-07-05

Abstract

The utility model discloses a detachable automatic-overturning metal mold core pulling mechanism which comprises a core pulling block, an oil cylinder and a base, wherein the base comprises a connecting block, a connecting plate, a left guide plate, a right guide plate and a bottom plate, a rotating shaft, a rotary control plate and a rotary connector are further arranged in the base, a slot is formed in the tail end of a piston rod of the oil cylinder, the slot is connected to the rotary connector through a bolt, guide rails and limiting shafts are respectively arranged on the left guide plate and the right guide plate, a limiting groove is formed in the rotary control plate, and sliding blocks are further arranged on the left side surface and the right side surface of the connecting block. The beneficial effects are as follows: through the bolt and the connecting inserting plate, the quick disassembly and assembly between the core-pulling block and the oil cylinder are realized, the installation time of the oil cylinder can be shortened to 3-5min, and the die change efficiency is effectively improved. The limiting shaft and the limiting groove are matched to move and rotate to drive the core pulling block to rotate and lift, so that a worker can conveniently perform coating supplement on the coating falling off from the bottom of the core pulling block, and the product defect is avoided.

Description

Detachable automatic-overturning core-pulling mechanism for metal mold

Technical Field

The utility model relates to the technical field of dies, in particular to a detachable automatic overturning metal die core pulling mechanism.

Background

At present, with the increasingly urgent need for lightweight in the automobile industry, the design and manufacturing requirements of integrated parts are more and more. The mold for aluminum alloy low-pressure casting and gravity casting has higher and higher requirements on structural design and process design. The side core-pulling type metal mold is complex in structure, the product is partially and cannot be molded through vertical parting of the mold, the side core-pulling is required to be added for molding, the side wall bottom of a large area is molded on the side core-pulling in metal mold gravity or low-pressure casting process, the side core-pulling is repeatedly fed and drawn, the paint attached to the bottom of the core-pulling can continuously fall off, the bottom space of the mold is narrow, a worker cannot timely supplement the paint on the surface of the mold, casting defects such as rough surface, cold shut, shrinkage porosity and cracks of the product can be caused, and the process control difficulty is high.

In addition, most of the existing core-pulling mechanisms of the dies are fixed on the dies, if the dies are too large in size, the core-pulling mechanisms have to be detached during die installation, and the core-pulling mechanisms are installed again after the dies are installed, so that time and labor are wasted. Meanwhile, the loose core can not be automatically turned, and the controllability of the product quality and the process is greatly influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the technical defects and provide a detachable automatic turnover metal mold core pulling mechanism, which realizes flexible detachment and automatic rotation, reduces the process control difficulty in gravity casting and low-pressure casting and effectively improves the product percent of pass.

The technical scheme adopted by the utility model for realizing the technical purpose is as follows: a core pulling mechanism of a detachable automatic-overturning metal mold comprises a core pulling block, an oil cylinder and a base with an opening at the upper part, wherein the base comprises a connecting block, a connecting plate, a left guide plate, a right guide plate and a bottom plate;

the base is internally provided with a rotating shaft, the rotating shaft is arranged in the front of the connecting block, two ends of the rotating shaft are provided with rotating control plates, a rotating connector is connected in the rotating control plates, the tail end of a piston rod of the oil cylinder is provided with an inserting groove, the inserting groove is connected to the rotating connector through a bolt, one end of the oil cylinder is connected to the connecting plate through a flange connecting plate, and the other end of the oil cylinder extends towards the front of the core-pulling block;

guide rails and limiting shafts are arranged on the left guide plate and the right guide plate respectively, the guide rails are arranged at the front part of the guide plates, and the limiting shafts are arranged at the rear part of the guide plates; a limiting groove is formed in the rotary control plate, and the limiting groove can slide and rotate relative to the limiting shaft; the left side surface and the right side surface of the connecting block are also provided with sliding blocks, and the sliding blocks can slide along the guide rails.

Preferably, the limiting groove comprises a horizontal groove and an inclined groove which are communicated with each other, and an included angle between the horizontal groove and the inclined groove is an obtuse angle.

Preferably, the guide rail comprises an upper guide rail and a lower guide rail, the upper guide rail and the lower guide rail enclose a slide way, and the sliding block slides back and forth along the slide way.

Preferably, the connecting structure further comprises two groups of connecting inserting plates which are symmetrically arranged in a gap between the flange connecting plate and the connecting plate.

Preferably, a bottom guide rail is further arranged on the bottom plate, and the bottom guide rail drags the connecting block and can slide relative to the connecting block.

The utility model has the beneficial effects that: through the bolt and the connecting inserting plate, the quick disassembly and assembly between the core-pulling block and the oil cylinder are realized, the installation time of the oil cylinder can be shortened to 3-5min, and the die change efficiency is effectively improved. The limiting shaft and the limiting groove are matched to move and rotate to drive the core pulling block to rotate and lift, so that a worker can conveniently perform coating supplement on the coating falling off from the bottom of the core pulling block, and the product defect is avoided.

Drawings

FIG. 1 is an overall schematic view of the present invention;

FIG. 2 is a schematic view of a core pulling block in an inverted state;

FIG. 3 is a schematic view of the structure of the limiting shaft and the limiting groove;

FIG. 4 is a schematic view of the structure at the base;

FIG. 5 is a schematic view of the structure of the oil cylinder;

fig. 6 is a schematic view of the core block and the connecting block in a rotating and lifting state.

Labeled as: 1. core extraction; 2. an oil cylinder; 21. a slot; 3. a base; 31. connecting blocks;

32. a connecting plate; 33. a left guide plate; 34. a right guide plate; 35. a base plate; 4. a rotating shaft;

5. rotating the control plate; 6. a rotary connector; 7. a bolt; 8. a flange connecting plate; 9. a guide rail;

91. an upper guide rail; 92. a lower guide rail; 10. a limiting shaft; 11. a limiting groove; 111. a horizontal groove; 112. An inclined groove; 12. a slider; 13. connecting the plugboards; 14. a bottom rail; 15. and (5) connecting the die with a plate.

Detailed Description

The utility model is further explained below with reference to the embodiments of the drawings.

Example one

As shown in fig. 1-5: the utility model provides a can dismantle automatic upset metal mold mechanism of loosing core, includes core pulling block 1 and hydro-cylinder 2, its characterized in that: the core-pulling block comprises a base 3 with an upper opening, wherein the base 3 comprises a connecting block 31, a connecting plate 32, a left guide plate 33, a right guide plate 34 and a bottom plate 35, and the core-pulling block 1 is connected to the outer side of the connecting block 31;

the base 3 is internally provided with a rotating shaft 4, the rotating shaft 4 is arranged at the front part of the connecting block 31, two ends of the rotating shaft 4 are provided with rotary control plates 5, a rotary connector 6 is connected in the rotating shaft 4, the tail end of a piston rod of the oil cylinder 2 is provided with a slot 21, the slot 21 is connected to the rotary connector 6 through a bolt 7, one end of the oil cylinder 2 is connected to the connecting plate 32 through a flange connecting plate 8, and the other end of the oil cylinder extends towards the front of the core-pulling block 1;

the guide rails 9 and the limiting shafts 10 are arranged on the left guide plate 33 and the right guide plate 34 respectively, the guide rails are arranged at the front part of the guide plates, and the limiting shafts 10 are arranged at the rear part of the guide plates; a limiting groove 11 is arranged on the rotary control plate 5, and the limiting groove 11 can slide and rotate relative to the limiting shaft 10; the left side and the right side of the connecting block 31 are also provided with sliding blocks 12, and the sliding blocks 12 can slide along the guide rails 9;

the limiting groove 11 comprises a horizontal groove 111 and an inclined groove 112 which are communicated with each other, and an included angle between the horizontal groove 111 and the inclined groove 112 is an obtuse angle.

The guide rail 9 comprises an upper guide rail 91 and a lower guide rail 92, the upper guide rail 91 and the lower guide rail 92 enclose a slide way, and the slide block 12 slides back and forth along the slide way.

The flange connecting plate is characterized by further comprising two groups of connecting inserting plates 13, wherein the two groups of connecting inserting plates 13 are symmetrically arranged in a gap between the flange connecting plate 8 and the connecting plate 32.

A bottom rail 14 is further provided on the bottom plate 35, and the bottom rail 14 drags the connecting block 31 and can slide relative to the connecting block 31.

The working principle and the working process of the utility model are as follows:

the core-pulling mechanism comprises a core-pulling block 1, an oil cylinder 2 and a base 3, forms a detachable automatic overturning core-pulling mechanism, is connected with a die bottom plate through a die connecting plate 15 and a bottom plate 35, is used as a part of a die structure, and can be flexibly applied to various metal die casting dies.

Fast dismounting between the core-pulling block 1 and the oil cylinder 2: as shown in figures 4 and 5 of the drawings,

the cylinder barrel of the oil cylinder 2 is connected with the base through a flange connecting plate 8, a slot 21 at the tail end of a piston rod of the oil cylinder 2 is sleeved in the rotary connector 6 and is inserted into the slot 21 through a bolt 7, the tail end of the piston rod is fixed with the rotary connector 6, and then the piston rod is connected with the core-pulling block 1. The oil cylinder 2 drags the core-pulling block 1 to move to the middle position of the base 3, the bolt 7 is pulled out, the piston rod of the oil cylinder 2 continues to move forwards, and the tail end of the piston rod exits from the rotary connector 6; the connecting inserting plate 13 is pulled out, the flange connecting plate 8 is taken out, the oil cylinder 2 is further taken out, the oil cylinder 2 is separated from the base 3, and the core-pulling block 1 in the base 3 is rapidly replaced. In the process, the connecting oil pipe of the oil cylinder 2 does not need to be dismantled, and the die changing efficiency is effectively improved.

The core-pulling block 1 automatically rotates: as shown in figure 2 and figure 6 of the drawings,

after the piston rod of the oil cylinder 2 is connected with the core-pulling block 1, the oil cylinder 2 is used for dragging the core-pulling block 1 to move forwards, the core-pulling block 1 moves forwards along the guide rail 9 and the bottom guide rail 14 of the base 1, namely, the sliding block 12 moves forwards along the upper guide rail 91 and the lower guide rail 92 to a certain distance, namely, the effective demoulding distance of the core-pulling block 1 is reached, the sliding block 12 of the core-pulling block 1 is separated from the upper guide rail 91 and the lower guide rail 92, meanwhile, the limiting shaft 10 on the rotary control plate 5 enters the limiting groove 11, so that the limiting shaft 10 enters the inclined groove 112 along the horizontal groove 111, namely, the overturning stroke is reached, so that the rotary control plate 5 rotates around the rotating shaft 4, the core-pulling block 1 connected on the connecting block 31 is driven to rotate and lift up until the oil cylinder 2 reaches the returning stroke. The rotation angle of the core-pulling block 1 is generally 30-60 degrees, so that workers can conveniently check the state of the core-pulling block 1 of the mold, and can conveniently perform supplementary coating on the coating dropped from the bottom of the core-pulling block 1. The uniform surface roughness of the product is ensured, the casting defects of rough surface, cold shut, shrinkage porosity, cracks and the like are reduced, and the process control difficulty is reduced.

Compared with the traditional one-way core-pulling mechanism, the product defect caused by incapability of repairing the coating due to the falling of the core-pulling coating is avoided. Meanwhile, due to the improvement of the quick replacement mechanism of the oil cylinder, the installation time of the oil cylinder can be shortened to 3-5min, and the die replacement efficiency is effectively improved.

Claims

1. The utility model provides a can dismantle automatic upset metal mold mechanism of loosing core, includes core pulling block and hydro-cylinder, its characterized in that: the core pulling device is characterized by also comprising a base with an opening at the upper part, wherein the base comprises a connecting block, a connecting plate, a left guide plate, a right guide plate and a bottom plate, and the core pulling block is connected to the outer side of the connecting block;

2. The removable automatic flipping metal mold core pulling mechanism of claim 1, wherein: the limiting groove comprises a horizontal groove and an inclined groove which are communicated with each other, and the included angle between the horizontal groove and the inclined groove is an obtuse angle.

3. The removable automatic flipping metal mold core pulling mechanism of claim 1, wherein: the guide rail comprises an upper guide rail and a lower guide rail, the upper guide rail and the lower guide rail enclose a slide way, and the slide block slides back and forth along the slide way.

4. The removable automatic flipping metal mold core pulling mechanism of claim 1, wherein: the flange connecting plate is characterized by further comprising two groups of connecting inserting plates which are symmetrically arranged in a gap between the flange connecting plate and the connecting plate.

5. The removable automatic flipping metal mold core pulling mechanism of claim 1, wherein: and a bottom guide rail is also arranged on the bottom plate, drags the connecting block and can slide relative to the connecting block.