A demolding mechanism for the slider of a casting mold

Abstract

This application relates to the field of casting technology, and discloses a mold slider ejection mechanism for a casting mold. In order to solve the problem that the casting material affects the mold forming quality and the normal operation of the ejection mechanism. Through the setting of the second telescopic rod, the slider main body and the pressing plate, when the female mold drives the formed mold to turn half a circle, the second telescopic rod drives the slider main body and the pressing plate to extend into the inner cavity of the mold. After that, the pressing plate moves and applies an outward supporting force to the inner wall of the mold. Then, the second telescopic rod drives the slider main body and the pressing plate to move down and reset. Through the above-mentioned outward supporting force, the mold is driven by the pressing plate to move down synchronously. Since the pressing plate and the female mold are separated in this device, the casting material will not affect the pressing plate during the casting process, thereby making the mold forming quality and the normal operation of the ejection mechanism not affected.

Description

Technical Field

[0001] The present application relates to the field of casting technology, and particularly to a mold slider ejection mechanism for casting molds. Background Art

[0002] A mold is a tool for making formed articles. During the casting process, an ejection mechanism is usually required to smoothly remove the cast mold, thereby facilitating subsequent processing of the mold.

[0003] Some existing casting and ejection mechanisms mainly consist of a female mold, a male mold, a core shooter, and an ejector. When in use, first, the female mold and the male mold are closed so that a cavity in the shape of the mold is formed between them. Then, the core shooter injects molten casting material into the cavity. After a period of time, the above material cools into a solid and forms the mold. Then, the female mold and the male mold are opened, and the female mold drives the formed mold to flip half a turn so that the bottom surface of the female mold faces upward. Finally, the ejector provided on the bottom surface of the female mold extends, contacts, and pushes the mold so that the mold is separated from the female mold. Through the above actions, the casting and ejection operations of the mold are realized.

[0004] However, in the above process, since the ejector is arranged at the bottom surface position of the female mold, in order to ensure the molding quality of the mold, the ejector needs to form a sealed sliding connection with the female mold. During long-term use, the ejector is prone to the problem of seal failure, resulting in some casting materials entering the gap between the ejector and the female mold, ultimately affecting the molding quality of the mold and the normal operation of the ejection mechanism. Summary of the Invention

[0005] The present application provides a mold slider ejection mechanism for casting molds, which has the advantage of avoiding the influence of casting materials on the ejection mechanism, and is used to solve the problems that casting materials affect the molding quality of the mold and the normal operation of the ejection mechanism.

[0006] To achieve the above object, the present application adopts the following technical solution: A mold slider ejection mechanism for casting molds, comprising: a top plate, a bottom plate is arranged below the top plate, vertical plates are fixedly connected to both sides between the top plate and the bottom plate, a male mold is arranged below the top plate and between the two vertical plates, a female mold is arranged below the male mold. When the male mold and the female mold are closed, a cavity is formed between the male mold and the female mold for the molding of the mold. A flipping mechanism is arranged inside the vertical plate, and the flipping mechanism is connected to the female mold for driving the female mold to rotate half a turn and reset.

[0007] A second telescopic rod is fixedly installed at the central position of the upper side of the bottom plate. A slider body is arranged between the second telescopic rod and the female mold. The end of the output rod of the second telescopic rod is fixedly connected to the central position of the bottom surface of the slider body. A moving mechanism is arranged inside the slider body. Pressure plates are arranged on all four sides of the slider body. The moving mechanism is connected to the pressure plates and is used to drive the pressure plates to contact and support the inner wall of the mold.

[0008] Furthermore, first telescopic rods are fixedly installed at both side positions inside the top plate. The end of the output rod of the first telescopic rod is fixedly connected to the upper side surface of the male mold. A core shooting pipe is fixedly installed on the upper side surface of the male mold and at the position between the two first telescopic rods on both sides. The lower side opening of the core shooting pipe is opened on the lower side surface of the male mold.

[0009] Furthermore, the flipping mechanism includes a rotating shaft and a motor. Rotating shafts are fixedly installed on the side surfaces of the female mold facing the corresponding vertical plates. A motor is fixedly installed inside one of the vertical plates. The other end of the rotating shaft far from the motor is rotatably connected to the corresponding vertical plate, and the other end of the rotating shaft close to the motor is fixedly connected to the output end of the motor.

[0010] Furthermore, the moving mechanism includes an installation cavity, an air pump, a sliding cavity, a first through hole, a sliding plate and a connecting plate. An installation cavity is opened at the central position inside the slider body. An air pump is fixedly installed in the installation cavity. The air pump communicates the installation cavity with the external environment. Sliding cavities are opened on the inside of the slider body and around the installation cavity. First through holes are communicated and opened at the positions between the sliding cavities and the installation cavity inside the slider body. A sliding plate is hermetically and movably installed in the cavity of the sliding cavity. A connecting plate is fixedly installed on the side surface of the sliding plate facing the corresponding pressure plate. The other side of the connecting plate extends out of the slider body and is fixedly connected to the corresponding pressure plate. The connecting plate forms a sliding connection with the slider body.

[0011] Furthermore, a contact member is fixedly installed on the side surface of the pressure plate facing away from the slider body. The contact member is made of rubber material.

[0012] Furthermore, the contact member is a sucker structure.

[0013] Furthermore, an airbag is arranged in the cavity of the sliding cavity and at the position where the sliding plate faces away from the corresponding pressure plate. One side of the airbag is fixedly connected to the sliding plate, and the other side of the airbag is fixedly connected to the inner wall of the sliding cavity. A second through hole is jointly opened inside the sliding plate, inside the connecting plate and inside the pressure plate. One side of the second through hole is communicated with the inner cavity of the airbag, and the other side opening of the second through hole is opened on the side surface of the pressure plate facing away from the slider body. The other side opening of the second through hole is within the area surrounded by the contact member.

[0014] Furthermore, a pressure sensor is fixedly installed at the center position of the upper side surface of the slider body, and the pressure sensor forms a remote control connection with the second telescopic rod.

[0015] This application has the following beneficial effects:

[0016] The present application provides a casting mold slider demolding mechanism, which is provided with a No. 2 telescopic rod, a slider body and a pressure plate. When the female mold drives the formed mold to flip half a circle, the No. 2 telescopic rod drives the slider body and the pressure plate to extend into the inner cavity of the mold. After that, the pressure plate moves and applies an external support force to the inner wall of the mold. Then, the No. 2 telescopic rod drives the slider body and the pressure plate to move downward and reset. Through the above-mentioned external support force, the mold is driven by the pressure plate to move downward synchronously. Since the pressure plate and the female mold in the device are separately arranged, the casting material will not affect the pressure plate during the casting process, thereby ensuring that the molding quality of the mold and the normal operation of the demolding mechanism are not affected.

[0017] Through the setting of the pressure plate and the contact piece, when the pressure plate applies external support force to the inner wall of the mold, the contact piece will be located between the two. Since the contact piece is made of rubber material, the contact force between the pressure plate and the inner wall of the mold is increased, making it easier for the pressure plate to drive the mold out of the die. At the same time, the squeezed contact piece will apply suction to the inner wall of the mold, so that the contact force between the pressure plate and the inner wall of the mold is further increased, thereby further promoting the smooth demolding of the mold.

[0018] Through the arrangement of the pressing plate, the contact piece and the airbag, when the pressing plate applies an external supporting force to the inner wall of the mold, the airbag will be stretched, allowing the airbag to further take in air. Afterwards, when the pressing plate is reset, the gas in the airbag will be guided into the area surrounded by the contact piece, prompting the contact piece to quickly detach from the inner wall of the mold. Through the above action, when the pressing plate is reset, the suction force between the contact piece and the inner wall of the mold is not easy to cause deformation of the mold wall.

[0019] Through the arrangement of the slider body and the pressure sensor, in the process that the No. 2 telescopic rod drives the slider body to extend into the mold cavity, the pressure sensor arranged on the upper side of the slider body synchronously enters the mold cavity. Afterwards, when the pressure sensor contacts the mold and rotates to the upper bottom surface, the pressure sensor outputs a signal to the No. 2 telescopic rod, causing the No. 2 telescopic rod to stop running. Through the above action, the pressure plate and the contact piece can extend into the uppermost side of the mold cavity, so that the external support force applied by the pressure plate can be better applied to the mold, thereby further promoting the smooth demolding of the mold. At the same time, when the pressure plate is reset, the suction between the contact piece and the inner wall of the mold is less likely to cause deformation of the mold wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which constitute a part of the specification, illustrate embodiments disclosed in the present application and, together with the description, serve to explain the principles disclosed in the present application.

[0021] With reference to the accompanying drawings, the present application can be more clearly understood according to the following detailed description, wherein:

[0022] Figure 1 It is a schematic diagram of the overall structure in Embodiment 1 of the present invention;

[0023] Figure 2 For the present invention Figure 1 It is a partially enlarged schematic diagram of the structure at A in it;

[0024] Figure 3 For the present invention Figure 1 It is a partially enlarged schematic diagram of the structure at B in it;

[0025] Figure 4 It is a schematic diagram of the internal structure of the slider main body in Embodiment 1 of the present invention;

[0026] Figure 5 For the present invention Figure 4 It is a partially enlarged schematic diagram of the structure at C in it;

[0027] Figure 6 It is a schematic diagram of the internal structure of the slider main body in Embodiment 2 of the present invention;

[0028] Figure 7 For the present invention Figure 6 It is a partially enlarged schematic diagram of the structure at D in it.

[0029] In the figure: 1, top plate; 2, bottom plate; 3, vertical plate; 4, punch; 5, first telescopic rod; 6, core shooting tube; 7, die; 8, mold; 9, rotating shaft; 10, motor; 11, second telescopic rod; 12, slider main body; 13, installation cavity; 14, air pump; 15, sliding cavity; 16, first through hole; 17, sliding plate; 18, pressing plate; 19, connecting plate; 20, contact part; 21, airbag; 22, second through hole; 23, pressure sensor. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.

[0031] Embodiment 1

[0032] Please refer to Figure 1 And Figure 2, A demolding mechanism for a casting mold slider, including a top plate 1. Below the top plate 1, there is a bottom plate 2. On both sides of the position between the top plate 1 and the bottom plate 2, there are vertical plates 3. The upper side of the vertical plate 3 is fixedly welded to the lower side of the top plate 1, and the lower side of the vertical plate 3 is fixedly welded to the upper side of the bottom plate 2. Below the top plate 1 and at the position between the two vertical plates 3 on both sides, there is a punch 4. On both sides inside the top plate 1, there is a first telescopic rod 5 fixedly installed (such as an electric telescopic rod in the prior art). The end of the output rod of the first telescopic rod 5 is fixedly connected to the upper side of the punch 4. On the upper side of the punch 4 and at the position between the two first telescopic rods 5 on both sides, there is a core shooting tube 6 fixedly installed. The lower opening of the core shooting tube 6 is opened on the lower side of the punch 4. Below the punch 4, there is a die 7. When the punch 4 and the die 7 are closed, a cavity is formed between the punch 4 and the die 7 for the molding of the mold 8.

[0033] During use, the first telescopic rod 5 is made to drive the punch 4 to move downward until the punch 4 and the die 7 are closed. Then, the molten casting material is injected into the core shooting tube 6 through a core shooter, so that the casting material fills the cavity. After a period of time, the casting material in the cavity cools to form the mold 8.

[0034] Please refer to Figure 1 And Figure 2 , on the side of the die 7 facing the corresponding vertical plate 3, there is a rotating shaft 9. Inside one vertical plate 3, there is a motor 10 fixedly installed. One end of one rotating shaft 9 is fixedly connected to the die 7, and the other end of one rotating shaft 9 is rotatably connected to the corresponding vertical plate 3. One end of the other rotating shaft 9 is fixedly connected to the die 7, and the other end of the other rotating shaft 9 is fixedly connected to the output end of the motor 10.

[0035] After the mold 8 is cooled and formed, the first telescopic rod 5 is made to drive the punch 4 to move upward. Then, the motor 10 is made to drive the rotating shaft 9 to rotate, so that the die 7 drives the mold 8 to rotate half a turn, thereby facilitating the subsequent demolding mechanism to drive the mold 8 to separate from the die 7.

[0036] Please refer to Figures 1-5, at the central position on the upper side of the bottom plate 2, a second telescopic rod 11 (such as an electric control telescopic rod in the prior art) is fixedly installed. There is a slider main body 12 between the second telescopic rod 11 and the concave die 7. The end of the output rod of the second telescopic rod 11 is fixedly connected to the central position of the bottom surface of the slider main body 12. An installation cavity 13 is provided at the central position inside the slider main body 12. An air pump 14 is fixedly installed in the installation cavity 13. The air pump 14 communicates the installation cavity 13 with the external environment. Slide cavities 15 are provided inside the slider main body 12 and around the installation cavity 13. First through holes 16 are provided inside the slider main body 12 at the positions between the slide cavities 15 and the installation cavity 13. The first through holes 16 communicate the corresponding slide cavities 15 with the installation cavity 13. A slide plate 17 is hermetically and slidably installed in the cavity of the slide cavity 15. Pressure plates 18 are provided around the slider main body 12 at positions corresponding to the slide plate 17. A connecting plate 19 is fixedly installed on the side of the slide plate 17 facing the corresponding pressure plate 18. The other side of the connecting plate 19 extends out of the slider main body 12 and is fixedly connected to the corresponding pressure plate 18. The connecting plate 19 forms a sliding connection with the slider main body 12.

[0037] When the concave die 7 drives the mold 8 to flip half a circle, the second telescopic rod 11 drives the slider main body 12 and the pressure plate 18 to extend into the inner cavity of the mold 8 (the elongation of the second telescopic rod 11 can be set as required). After that, the air pump 14 is activated, so that the air pump 14 pumps the external air into the installation cavity 13 (the air intake and exhaust volume of the air pump 14 can be controlled by controlling the operation time of the air pump 14), and enters the slide cavity 15 through the first through hole 16, so that the corresponding slide plate 17 pushes the pressure plate 18 to move through the connecting plate 19. Finally, the pressure plate 18 contacts the mold 8 and applies an external support force to the inner wall of the mold 8 (since the wall of the mold 8 fits the inner wall of the concave die 7, the above external support force will not cause the mold 8 to deform outward). Then, the second telescopic rod 11 drives the slider main body 12 and the pressure plate 18 to move down and reset. Through the above external support force, the mold 8 is driven by the pressure plate 18 to move down synchronously. Since the pressure plate 18 and the concave die 7 are separated in this device, the pouring material will not affect the pressure plate 18 during the casting process, so that the forming quality of the mold 8 and the normal operation of the mold ejection mechanism are not affected. After that, when the second telescopic rod 11 is reset, the air pump 14 discharges the pumped-in gas to the external environment, so that the above structure is reset. The bottom surface of the mold 8 (the horizontal plane of the mold 8) contacts the upper side of the slider main body 12. In this process, since the distance between the slider main body 12 and the bottom surface of the mold 8 is relatively close, the impact force when the mold 8 falls is weak. Through the above actions, it is avoided that the mold 8 falls a long distance and is damaged.

[0038] Please refer to Figures 1-5 , a contact member 20 is fixedly installed on the side of the pressure plate 18 facing away from the slider main body 12. The contact member 20 is made of rubber material.

[0039] During the process of the above-mentioned pressing plate 18 applying an external supporting force to the inner wall of the mold 8, the contact member 20 will be in the position between the two. Since the contact member 20 is made of rubber material, the contact force between the pressing plate 18 and the inner wall of the mold 8 is increased, which promotes the pressing plate 18 to more easily drive the mold 8 away from the female mold 7.

[0040] The contact member 20 is a suction cup structure.

[0041] The above-mentioned squeezed contact member 20 will apply a suction force to the inner wall of the mold 8, so that during the subsequent downward movement of the pressing plate 18, the contact force between the pressing plate 18 and the inner wall of the mold 8 is further increased, thereby further promoting the smooth demolding of the mold 8.

[0042] Embodiment 2

[0043] Please refer to Figures 1-7 , this embodiment is a further improvement of Embodiment 1. The improvement lies in that: an airbag 21 is arranged in the cavity of the sliding cavity 15 and at the position of the sliding plate 17 facing away from the corresponding pressing plate 18. One side of the airbag 21 is fixedly connected to the sliding plate 17, and the other side of the airbag 21 is fixedly connected to the inner wall of the sliding cavity 15. A second through hole 22 is jointly opened in the interior of the sliding plate 17, the interior of the connecting plate 19 and the interior of the pressing plate 18. One side of the second through hole 22 is communicated with the inner cavity of the airbag 21, and the other side of the second through hole 22 is opened on the side of the pressing plate 18 facing away from the slider body 12, and the opening on the other side of the second through hole 22 is within the area surrounded by the contact member 20.

[0044] During the process of the above-mentioned pressing plate 18 applying an external supporting force to the inner wall of the mold 8, the sliding plate 17 will stretch the airbag 21, so that the airbag 21 sucks in external air through the second through hole 22. After that, when the pressing plate 18 resets, the corresponding sliding plate 17 will squeeze the airbag 21, so that the air in the airbag 21 enters the area surrounded by the contact member 20 through the second through hole 22, thereby promoting the contact member 20 that adsorbs the inner wall of the mold 8 to quickly separate from the inner wall of the mold 8. Through the above actions, when the pressing plate 18 resets, the suction force between the contact member 20 and the inner wall of the mold 8 is not likely to cause deformation of the wall of the mold 8.

[0045] Please refer to Figures 1-7 , a pressure sensor 23 is fixedly installed at the central position of the upper side of the slider body 12. The pressure sensor 23 is in a remote control connection with the second telescopic rod 11 (when the pressure sensor 23 senses pressure, the pressure sensor 23 outputs a signal to the second telescopic rod 11, so that the second telescopic rod 11 stops running).

[0046] During the process of the second telescopic rod 11 driving the slider body 12 to extend into the inner cavity of the mold 8, the pressure sensor 23 synchronously enters the inner cavity of the mold 8. After that, when the pressure sensor 23 contacts the bottom surface of the mold 8 that rotates to the upper side, the pressure sensor 23 outputs a signal to the second telescopic rod 11, causing the second telescopic rod 11 to stop operating. Through the above actions, the pressing plate 18 and the contact member 20 can extend to the uppermost side of the inner cavity of the mold 8, enabling the external support force applied by the pressing plate 18 to be better applied to the mold 8 (the position where the above-mentioned pressing plate 18 contacts the mold 8 is closer to the connection between the side wall and the bottom wall of the mold 8, making it difficult for the external support force applied by the pressing plate 18 to the side wall of the mold 8 to deform the side wall of the mold 8), thereby further facilitating the smooth demolding of the mold 8. At the same time, when the pressing plate 18 resets, the suction force between the contact member 20 and the inner wall of the mold 8 is less likely to cause deformation of the wall of the mold 8.

Claims

1. A demolding mechanism for a casting mold slider, comprising: Top plate (1), a bottom plate (2) is arranged below the top plate (1), vertical plates (3) are fixedly connected together on both sides between the top plate (1) and the bottom plate (2), a punch (4) is arranged below the top plate (1) and between the two vertical plates (3), a die (7) is arranged below the punch (4). When the punch (4) and the die (7) are closed, a cavity is formed between the punch (4) and the die (7) for the forming of the mold (8). A flipping mechanism is arranged inside the vertical plate (3), and the flipping mechanism is connected to the die (7) for driving the die (7) to rotate half a circle and reset. It is characterized in that a second telescopic rod (11) is fixedly installed at the central position of the upper side surface of the bottom plate (2), a slider body (12) is arranged between the second telescopic rod (11) and the die (7), the end of the output rod of the second telescopic rod (11) is fixedly connected to the central position of the bottom surface of the slider body (12), a moving mechanism is arranged inside the slider body (12), pressing plates (18) are arranged around the slider body (12), and the moving mechanism is connected to the pressing plates (18) for driving the pressing plates (18) to contact and support the inner wall of the mold (8). The moving mechanism includes an installation cavity (13), an air pump (14), a sliding cavity (15), a first through hole (16), a sliding plate (17) and a connecting plate (19). An installation cavity (13) is opened at the central position inside the slider body (12), an air pump (14) is fixedly installed in the installation cavity (13), the air pump (14) communicates the installation cavity (13) with the external environment. Sliding cavities (15) are opened around the installation cavity (13) inside the slider body (12), and first through holes (16) are communicated and opened at the positions between the sliding cavities (15) and the installation cavity (13) inside the slider body (12). A sliding plate (17) is hermetically and movably installed in the cavity of the sliding cavity (15), a connecting plate (19) is fixedly installed on the side surface of the sliding plate (17) facing the corresponding pressing plate (18), the other side of the connecting plate (19) extends out of the slider body (12) and is fixedly connected to the corresponding pressing plate (18), and the connecting plate (19) forms a sliding connection with the slider body (12). A contact member (20) is fixedly installed on the side surface of the pressing plate (18) facing away from the slider body (12), and the contact member (20) is made of rubber material; the contact member (20) is a suction cup structure. An airbag (21) is arranged inside the cavity of the sliding cavity (15) and at a position where the sliding plate (17) faces away from the corresponding pressing plate (18). One side of the airbag (21) is fixedly connected to the sliding plate (17), and the other side of the airbag (21) is fixedly connected to the inner wall of the sliding cavity (15). A second through hole (22) is jointly opened inside the sliding plate (17), inside the connecting plate (19), and inside the pressing plate (18). One side of the second through hole (22) is communicated with the inner cavity of the airbag (21), and the other side of the second through hole (22) is opened on the side of the pressing plate (18) facing away from the slider body (12). The opening on the other side of the second through hole (22) is within the area surrounded by the contact member (20). A pressure sensor (23) is fixedly installed at the central position of the upper side of the slider body (12), and the pressure sensor (23) is remotely connected to the second telescopic rod (11).

2. The ejection mechanism for the slider of a casting mold according to claim 1, wherein, Two first telescopic rods (5) are fixedly installed at both sides inside the top plate (1). The end of the output rod of the first telescopic rod (5) is fixedly connected to the upper side of the punch (4). A core shooting pipe (6) is fixedly installed on the upper side of the punch (4) and at a position between the two first telescopic rods (5) on both sides. The lower opening of the core shooting pipe (6) is opened on the lower side of the punch (4).

3. The ejection mechanism for the slider of the casting mold according to claim 2, wherein, The flipping mechanism includes a rotating shaft (9) and a motor (10). Rotating shafts (9) are fixedly installed on the sides of the concave die (7) facing the corresponding vertical plates (3). A motor (10) is fixedly installed inside one of the vertical plates (3). The other end of the rotating shaft (9) away from the motor (10) is rotatably connected to the corresponding vertical plate (3), and the other end of the rotating shaft (9) close to the motor (10) is fixedly connected to the output end of the motor (10).

Images