CN211840114U - A mold release device for casting molds - Google Patents

Abstract

The utility model discloses a demoulding device for a casting mold, which comprises a bottom plate, a forming cavity, a demolding mechanism and a lower mold seat. Both ends of the top of the bottom plate are fixed with bearing plates, and the tops of the bearing plates are hinged with scissors A lower die seat is fixed at the top of the scissors frame, a reinforcement layer is arranged inside the side wall of the lower die seat, and spring wires are evenly arranged on both sides of the reinforcement layer, and the outer side wall of the lower die seat is evenly coated It is covered with a high temperature resistant layer of ceramic particles, and the top of the lower die base is provided with a molding cavity. The ejector blocks all pass through the bottom end of the molding cavity. The utility model is provided with a lower die base, a demolding mechanism, a molding cavity, a motor, a threaded screw rod, a movable sleeve, a fixed frame and an ejector block. The motor drives the threaded screw rod to rotate to make the movable sleeve move up and down, and the fixed frame drives the top The block moves up, and the top of the ejection block passes through the molding cavity, so that the solidified workpiece model inside the molding cavity is ejected and demolded without manual operation, which saves time and effort.

Description

A mold release device for casting molds

technical field

The utility model relates to the technical field of demolding devices, in particular to a demoulding device for casting molds.

Background technique

Casting is a metal thermal processing process that humans have mastered earlier. It is a method of casting liquid metal into a casting cavity suitable for the shape of the part, and after it cools and solidifies, the method of obtaining parts or blanks. Demoulding, but most of the existing demoulding methods have some problems, as follows;

1. Most of the existing demoulding methods are manual demoulding by workers after the workpiece mold is cooled, which is not only time-consuming and laborious, but also easy to cause bonding;

2. Some demoulding devices do not have the function of buffering and shock absorption, and are prone to shaking during work and have poor stability;

3. The existing demoulding device itself has poor structural strength and compressive performance, and has poor heat resistance and is easily damaged.

Utility model content

The purpose of the present utility model is to provide a demolding device for a casting mold, so as to solve the problems of inconvenient demoulding, poor stability and easy damage in the above-mentioned background art.

In order to achieve the above purpose, the utility model provides the following technical solutions: a mold release device for a casting mold, comprising a bottom plate, a molding cavity, a mold release mechanism and a lower mold seat, and both ends of the top of the bottom plate are fixed with bearing plates, and A scissors frame is hinged on the top of the bearing plate, a lower die seat is fixed on the top of the scissors frame, a reinforcement layer is arranged inside the side wall of the lower die seat, and spring wires are evenly arranged on both sides of the reinforcement layer. The outer side wall of the lower mold seat is uniformly coated with a high temperature resistant layer of ceramic particles, and the top end of the lower mold seat is provided with a molding cavity. A motor is fixed at each end, and a threaded screw rod is arranged at the output end of the motor, and a movable sleeve is sleeved on the threaded screw rod. Both sides of the movable sleeve are fixed with a fixed frame, and the top of the fixed frame is An ejector block is fixed, and the ejector blocks all pass through the bottom end of the molding cavity.

Preferably, the outer side of the lower die base is wound with a cooling pipe in a "serpentine" structure, and the top end of one side of the lower die base is provided with a water inlet, and the bottom end of the other side of the lower die base is provided with a water outlet, And the water inlet and outlet are connected with the cooling pipe, which is convenient to accelerate the cooling of the model.

Preferably, the outer side of the cooling pipe is wrapped with a thermal insulation layer, and the thermal insulation layer is made of asbestos to avoid temperature loss.

Preferably, both sides of the demolding mechanism are provided with guide grooves, and both sides of the fixing frame are provided with guide blocks matching the guide grooves, which play a guiding role when the model is pushed.

Preferably, movable parts are slidably arranged on both sides of the top of the carrying plate, and fixed plates are fixed on the bottom plates on both sides of the carrying plate. Contact blocks matching the movable parts are fixed on both sides of the bottom of the frame, which play the role of shock absorption and buffering.

Preferably, reinforcing ribs are uniformly arranged inside the reinforcing layer, and the reinforcing ribs are connected in an "X" shape, which is convenient to improve the structural strength of the device.

Compared with the prior art, the beneficial effects of the present utility model are:

(1) The demolding device of the casting mold is equipped with a lower die base, a demolding mechanism, a molding cavity, a motor, a threaded screw, a movable sleeve, a fixed frame and an ejector block, and the motor drives the threaded screw to rotate, and the movable sleeve rotates. The inner wall is provided with an internal thread that matches the threaded screw. The rotation of the threaded screw makes the movable sleeve move up and down, and the ejector block is moved up by the fixing frame. The solidified workpiece model is ejected and demolded without manual operation, which saves time and effort. At the same time, a cooling pipe is wound around the outer side of the lower mold base. By passing cold water into the cooling pipe, it is convenient to cool the model in the molding cavity and improve the temperature. The cooling rate is further conducive to demoulding, and it is not easy to bond.

(2) The demolding device of the casting mold is installed with a bottom plate, a scissors frame, a fixed plate, a return spring, a bearing plate and a movable part, so that if the device vibrates during operation, the vibration force causes the scissors frame to be pressed down, so that the scissors frame The two ends of the bottom move away from each other, and there are contact blocks on both sides of the bottom of the scissors frame. The contact blocks are in contact with the movable parts and push the movable parts to compress the return spring. Part of the vibration force can be absorbed by the retraction and rebound of the return spring, thereby starting the operation. To the role of shock absorption and buffering, improve the stability of the device when working.

(3) The demoulding device of the casting mold is provided with a reinforcement layer inside the side wall of the lower mold base, and the inside of the reinforcement layer is evenly provided with reinforcing ribs of an "X"-shaped structure, which is convenient to improve the structural strength of the lower mold base, while strengthening the Spring wires are evenly arranged on both sides of the layer, which is convenient to improve the compression resistance of the lower die holder. At the same time, the outer side of the lower die holder is coated with a high temperature resistant layer of ceramic particles to avoid being scalded by high temperature metal liquid and prolong the service life.

Description of drawings

Fig. 1 is the front view sectional structure schematic diagram of the present utility model;

Fig. 2 is the sectional structure schematic diagram of the demolding mechanism of the utility model;

Fig. 3 is the enlarged cross-sectional structure schematic diagram of A in Fig. 1 of the present utility model;

FIG. 4 is a schematic view of the cross-sectional structure of the side wall of the lower die seat of the present invention.

In the figure: 1. Bottom plate; 2. Cooling pipe; 3. Water inlet; 4. Molding cavity; 5. Mold release mechanism; 6. Lower die seat; 7. Water outlet; 8. Scissor frame; 9. Motor; 10. Movable sleeve; 11. Ejector block; 12. Fixed frame; 13. Screw thread; 14. Return spring; 15. Movable part; 16. Loading plate; 17. Fixed plate; 18. High temperature resistant layer of ceramic particles; 19. Spring wire; 20. Reinforcing layer; 21. Reinforcing rib.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to FIGS. 1-4, an embodiment provided by the present invention: a demolding device for a casting mold, comprising a bottom plate 1, a molding cavity 4, a demolding mechanism 5 and a lower mold seat 6, the two ends of the top of the bottom plate 1 A carrying board 16 is fixed, and the top of the carrying board 16 is hinged with a scissors frame 8, the top of the scissors frame 8 is fixed with a lower die base 6, and both sides of the top of the carrying board 16 are slidably provided with movable parts 15, and the carrying board The bottom plate 1 on both sides of 16 is fixed with a fixed plate 17, the fixed plate 17 and the movable part 15 are all connected by a return spring 14, and both sides of the bottom of the scissors frame 8 are fixed with a contact block that matches the movable part 15;

If the device vibrates during operation, the vibration force pushes the scissors frame 8 to press down, so that the two ends of the bottom of the scissors frame 8 move opposite each other, and both sides of the bottom of the scissors frame 8 are provided with contact blocks, and the contact blocks are in contact with the movable part 15. Push the movable member 15 to compress the return spring 14, and the elastic rebound of the return spring 14 can absorb a part of the vibration force, thereby playing the role of shock absorption and buffering, and improving the stability of the device during operation;

The outer side of the lower die base 6 is wound with a cooling pipe 2 in a "serpentine" structure, and the top end of one side of the lower die base 6 is provided with a water inlet 3, and the bottom end of the other side of the lower die base 6 is provided with a water outlet 7, and The water inlet 3 and the water outlet 7 are both connected to the cooling pipe 2, and the outer side of the cooling pipe 2 is wrapped with a thermal insulation layer, and the thermal insulation layer is made of asbestos;

By passing cold water into the cooling pipe 2, it is convenient to cool the model in the molding cavity 4, and the cooling speed is increased, which is further conducive to demoulding, and is not easy to bond. The thermal insulation layer of asbestos material can avoid temperature loss and improve the cooling effect;

The inside of the side wall of the lower die base 6 is provided with a reinforcing layer 20, and the inside of the reinforcing layer 20 is evenly provided with reinforcing ribs 21, and the reinforcing ribs 21 are connected in an "X" shape, and the two sides of the reinforcing layer 20 are evenly provided with spring wires 19. The outer side wall of the lower die base 6 is uniformly coated with a high temperature resistant layer 18 of ceramic particles;

It is convenient to improve the structural strength and compressive performance of the lower die base 6, and it is not easy to be damaged. At the same time, the high temperature resistant layer 18 of the ceramic particles can avoid being scalded by the high temperature metal liquid and prolong the service life;

And the top end of the lower mold base 6 is provided with a molding cavity 4, the bottom end inside the lower mold base 6 is evenly provided with a demolding mechanism 5, and the bottom end inside the demoulding mechanism 5 is fixed with a motor 9, and the output end of the motor 9 is A threaded screw rod 13 is provided, and the threaded screw rod 13 is covered with a movable sleeve 10. Both sides of the movable sleeve 10 are fixed with a fixing frame 12, and the top of the fixing frame 12 is fixed with an ejector block 11, which is ejected out. The blocks 11 all pass through the bottom end of the molding cavity 4, both sides of the demolding mechanism 5 are provided with guide grooves, and both sides of the fixing frame 12 are provided with guide blocks that match the guide grooves;

The motor 9 drives the threaded screw rod 13 to rotate, and the inner wall of the movable sleeve 10 is provided with internal threads that match the threaded screw rod 13. The rotation of the threaded screw rod 13 makes the movable sleeve 10 move up and down, and drives the ejector block 11 through the fixing frame 12. The top end of the ejector block 11 passes through the molding cavity 4, so that the solidified workpiece model inside the molding cavity 4 is ejected for demoulding, which does not require manual operation, saving time and effort.

Working principle: when using, external power supply, the metal solution is introduced into the molding cavity 4, after cooling, the motor 9 drives the threaded screw 13 to rotate, and the inner wall of the movable sleeve 10 is provided with internal threads matching the threaded screw 13. The rotation of the rod 13 makes the movable sleeve 10 move up and down, and the ejector block 11 is moved up by the fixing frame 12, and the top end of the ejector block 11 passes through the molding cavity 4, so that the solidified workpiece model inside the molding cavity 4 is ejected and removed. The mold does not need to be manually performed, which saves time and labor. At the same time, a cooling pipe 2 is wound on the outer side of the lower mold base 6. By passing cold water into the cooling pipe 2, it is convenient to cool the mold in the molding cavity 4, improve the cooling speed, and further It is conducive to demoulding and is not easy to bond. The outer side of the lower die base 6 is coated with a high temperature resistant layer 18 of ceramic particles to avoid being scalded by high temperature metal liquid and prolong the service life. The force urges the scissors frame 8 to press down, so that the two ends of the bottom of the scissors frame 8 move opposite each other, and both sides of the bottom of the scissors frame 8 are provided with contact blocks, which are in contact with the movable part 15, and push the movable part 15 to compress the return spring 14, A part of the vibration force can be absorbed by the retraction and rebound of the return spring 14, thereby playing the role of shock absorption and buffering, and improving the stability of the device during operation.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention may be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments are to be considered in all respects as exemplary and not restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is therefore intended that the All changes within the meaning and range of the required equivalents are embraced within the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

Claims (6)

1. A demolding device for a casting mould, comprising a base plate (1), a molding cavity (4), a demolding mechanism (5) and a lower die seat (6), characterized in that: two parts on the top of the base plate (1) A bearing plate (16) is fixed at both ends, and a scissors frame (8) is hinged to the top of the bearing plate (16), and a lower die base (6) is fixed on the top of the scissors frame (8). (6) A reinforcement layer (20) is arranged inside the side wall, and spring wires (19) are evenly arranged on both sides of the reinforcement layer (20), and the outer side wall of the lower die base (6) is uniformly coated with ceramic particles The high temperature resistant layer (18) is provided with a molding cavity (4) at the top of the lower mold base (6), and a demolding mechanism (5) is evenly provided at the bottom end inside the lower mold base (6), and the demolding mechanism (5) Motors (9) are fixed at the bottom ends of the interior, and threaded screw rods (13) are provided at the output ends of the motors (9), and movable sleeves (10) are sleeved on the threaded screw rods (13). ), a fixing frame (12) is fixed on both sides of the movable sleeve (10), and a top end of the fixing frame (12) is fixed with an ejecting block (11), and the ejecting block (11) passes through the The bottom end of the molding cavity (4). 2. The demoulding device of a casting mold according to claim 1, characterized in that: the outer side of the lower mold seat (6) is wound with a cooling pipe (2) in a "serpentine" structure, and the lower mold seat (6) is wound with a cooling pipe (2). (6) The top end of one side is provided with a water inlet (3), the bottom end of the other side of the lower die base (6) is provided with a water outlet (7), and the water inlet (3) and the water outlet (7) are both Connect to the cooling pipe (2). 3 . The demoulding device of a casting mold according to claim 2 , wherein the outer side of the cooling pipe ( 2 ) is wrapped with a thermal insulation layer, and the thermal insulation layer is made of asbestos. 4 . 4. The demoulding device of a casting mold according to claim 1, characterized in that: both sides inside the demolding mechanism (5) are provided with guide grooves, and both sides of the fixing frame (12) are provided with guide grooves. Both are provided with guide blocks that match the guide grooves. 5. The demoulding device of a casting mold according to claim 1, characterized in that: both sides of the top of the carrier plate (16) are slidably provided with movable parts (15), and two sides of the carrier plate (16) are slidably provided A fixed plate (17) is fixed on the side bottom plate (1), the fixed plate (17) and the movable part (15) are connected by a return spring (14), and the two bottoms of the scissors frame (8) are connected. Both sides are fixed with contact blocks matching the movable parts (15). 6 . The demoulding device of a casting mold according to claim 1 , wherein the reinforcing layer ( 20 ) is evenly provided with reinforcing ribs ( 21 ), and the reinforcing ribs ( 21 ) are all in the shape of “X”. 7 . " type connection.

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