Automatic cooling mold opening mechanism

Abstract

The utility model provides an automatic cooling mold opening mechanism, belongs to the technical field of automatic cooling mold opening mechanisms for casting cylinder covers, and aims to solve the problems that the operation of fastening and loosening bolts for multiple times around an upper mold and a lower mold is needed, the working efficiency is influenced, and the production cost is reduced. Comprising a top die, an L-shaped connecting piece, a semicircular groove piece, a bottom die, a jacking air cylinder rod, a clamping mechanism and a cooling mechanism. The top die is arranged above the bottom die; the four sets of L-shaped connecting pieces are arranged on the front side face and the rear side face of the top die correspondingly. The four groups of semicircular groove pieces are respectively arranged on the front side surface and the rear side surface of the top die; the four sets of jacking air cylinder rods are arranged on the front side face and the rear side face of the bottom die correspondingly. The clamping mechanism is arranged on the side face of the bottom die. And the cooling mechanism is arranged below the bottom die. According to the sand mold cooling device, efficient cooling of the sand mold is achieved, and the production efficiency of the sand mold of the engine cylinder cover is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automatic cooling and mold opening mechanisms for casting cylinder heads, and more specifically, particularly relates to an automatic cooling and mold opening mechanism. Background Art

[0002] When casting an engine cylinder head, a sand mold is usually used to shape the engine cylinder head. The sand mold used to cast the engine cylinder head usually consists of an upper mold, a lower mold and a gate. The gate is set in the lower mold. The space formed between the upper mold and the lower mold is a closed cavity. In order to control the gap between the upper mold and the lower mold, during casting, the upper mold and the lower mold are first fitted together and then fastened with bolts. The casting process adopts a low-pressure casting process to allow the molten metal to enter from the gate on the bottom mold. The molten metal slowly rises from bottom to top in the cavity between the upper mold and the lower mold until it fills the entire cavity. After the molten metal fills the cavity, it needs to be naturally cooled for a period of time. After loosening the bolts, the upper mold is hooked up with a crane to complete the opening operation of the sand mold.

[0003] The existing application number is: CN202020733154.2. The utility model discloses a rapid casting mold for an engine cylinder head, including a lower die base, an upper die base is arranged on the top of the lower die base, positioning grooves are provided on the front and rear sides of the top of the lower die base, buffer grooves are provided on both sides of the top of the lower die base, and a buffer member is provided in the inner cavity of the buffer groove, and the buffer member includes a buffer plate, and springs are arranged on the bottom of the buffer plate from left to right, and the bottom of the spring is fixedly connected to the bottom of the inner cavity of the buffer groove, and a buffer pad is fixedly connected to the top of the buffer plate. The utility model achieves the advantage of rapid positioning by setting a lower die base, an upper die base, a positioning groove, a buffer groove, a buffer member, a positioning column, a buffer block, a mounting seat, a mounting plate, a bolt and a connecting plate, which cooperate with each other, improves work efficiency, can meet the needs of users, and can protect the mold and extend the service life of the casting mold.

[0004] Based on the above, during casting, the upper mold and the lower mold are first fitted together and then fastened with bolts. Then the molten metal needs to fill the entire cavity to complete the casting of the engine cylinder head. The upper mold and the lower mold are then fastened with bolts. There are four groups of bolts, and the four groups of bolts are respectively located on the sides of the upper mold and the lower mold. In order to make these four groups of bolts produce the same and appropriate pre-tightening force, when tightening the bolts, it is necessary to perform the initial tightening of the four groups of bolts on the sides of the upper mold and the lower mold in turn. The initial tightening cannot exceed 70% of the bolt torque. After the initial tightening of the four groups of bolts, the four groups of bolts are re-tightened in turn. When re-tightening, the four groups of bolts produce the same and appropriate pre-tightening force. In the process of initial tightening and re-tightening of the four groups of bolts, it is necessary to tighten the bolts multiple times around the upper mold and the lower mold. When opening the mold, it is also necessary to loosen the four groups of bolts around the upper mold and the lower mold. The process is relatively cumbersome, wastes manpower, and affects work efficiency. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an automatic cooling mold opening mechanism to solve the problem that in the process of initial tightening and re-tightening of the four groups of bolts, the bolts need to be tightened multiple times around the upper mold and the lower mold. When opening the mold, the four groups of bolts also need to be loosened around the upper mold and the lower mold. The process is relatively cumbersome, wastes manpower, and affects work efficiency.

[0006] The purpose and effect of the automatic cooling mold opening mechanism of the utility model are achieved by the following specific technical means:

[0007] An automatic cooling mold opening mechanism, comprising a top mold, an L-shaped connecting piece, a semicircular groove piece, a bottom mold, a lifting cylinder rod, a water cooling plate, a clamping mechanism and a cooling mechanism;

[0008] The side of the bottom mold is provided with a gate;

[0009] The top mold is arranged above the bottom mold;

[0010] There are four groups of L-shaped connectors, which are fixedly connected to the front and rear sides of the top mold respectively;

[0011] There are four groups of semicircular groove parts, which are respectively fixedly connected to the front and rear sides of the top mold;

[0012] There are four groups of lifting cylinder rods, which are respectively fixedly connected to the front and rear sides of the bottom mold. When the four groups of lifting cylinder rods are extended, the top mold can be lifted up through the four groups of semicircular groove parts.

[0013] The water cooling plate is fixedly connected below the bottom mold;

[0014] The clamping mechanism is arranged on the side of the bottom mold;

[0015] The cooling mechanism is arranged below the bottom mold.

[0016] Further, the cooling mechanism includes a water inlet pipe and a water outlet pipe;

[0017] The water inlet pipe is arranged on the side of the water cooling plate, and one end of the water inlet pipe is arranged inside the water cooling plate;

[0018] The water outlet pipe is arranged on the side of the water cooling plate, and one end of the water inlet pipe is arranged inside the water cooling plate.

[0019] Furthermore, the cooling mechanism also includes a meandering water tank;

[0020] The meandering water tank is arranged inside the water cooling plate, and two ends of the meandering water tank are respectively threadedly connected with one end of the water inlet pipe and one end of the water outlet pipe.

[0021] Further, the clamping mechanism includes a T-shaped fixing member and a limiting cylinder rod;

[0022] There are two groups of T-shaped fixing members, which are respectively fixedly connected to the front and rear sides of the bottom mold;

[0023] There are two groups of limit cylinder rods, and the two groups of limit cylinder rods are respectively fixedly connected inside the two groups of T-shaped fixing pieces.

[0024] Furthermore, the clamping mechanism also includes a rack and a transmission gear;

[0025] There are two groups of racks, which slide inside two groups of T-shaped fixing members respectively, and are fixedly connected to two groups of limit cylinder rods respectively;

[0026] There are four groups of transmission gears in total. The four groups of transmission gears are rotatably connected inside the two groups of T-shaped fixing members respectively, and the four groups of transmission gears are respectively meshed with the two groups of racks.

[0027] Furthermore, the clamping mechanism also includes a limiting gear and a limiting rod;

[0028] There are four groups of limit gears, which are rotatably connected to the inside of the two groups of T-shaped fixing members, and are meshed with the four groups of transmission gears respectively;

[0029] There are four groups of limit rods in total. The four groups of limit rods are respectively arranged inside the two groups of T-shaped fixing members, and the four groups of limit rods are respectively fixedly connected to the outer peripheries of the four groups of limit gears.

[0030] Compared with the prior art, the utility model has the following beneficial effects:

[0031] The utility model provides a cooling mechanism, and water enters the serpentine water tank through the water inlet pipe and then flows out through the water outlet pipe, thereby realizing efficient cooling of the sand mold, accelerating the molding of the engine cylinder head, and improving the processing efficiency of the engine cylinder head.

[0032] The utility model provides a clamping mechanism, when the top mold is embedded on the top of the bottom mold, the extended length of the two groups of limit cylinder rods is reduced, and when the extended length of the two groups of limit cylinder rods is reduced, the four groups of limit rods are swung and pressed toward the four groups of L-shaped connecting pieces respectively through the transmission cooperation of the two groups of racks, four groups of transmission gears and four groups of limit gears, so that the top mold can be embedded on the top of the bottom mold more tightly, avoiding the need to tighten and loosen the bolts for multiple times when the top mold and the bottom mold are connected by bolts, simplifying the operation process, and improving the production efficiency of the sand mold of the engine cylinder head.

[0033] The utility model arranges the semicircular groove parts and the lifting cylinder rods, and when the four groups of lifting cylinder rods are extended, the top mold can be lifted up through the four groups of semicircular groove parts, so that the demoulding operation between the top mold and the bottom mold is more convenient and efficient.

[0034] The utility model realizes efficient cooling of the sand mold, accelerates the molding of the engine cylinder head, avoids the need to tighten and loosen the bolts multiple times when the top mold and the bottom mold are connected by bolts, simplifies the operation process, and improves the production efficiency of the sand mold of the engine cylinder head. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0036] Figure 2 It is a schematic diagram of the top mold structure of the utility model.

[0037] Figure 3 It is a schematic diagram of the structure of a T-shaped fixing piece of the utility model.

[0038] Figure 4 It is a schematic diagram of the structure of the circular water tank of the utility model.

[0039] Figure 5 It is a schematic diagram of the structure of the clamping mechanism of the utility model.

[0040] Figure 6 It is a schematic diagram of the rack structure of the utility model.

[0041] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0042] 1. Top mold; 101. L-shaped connecting piece; 102. Semicircular groove piece; 2. Bottom mold; 201. Lifting cylinder rod; 3. Water cooling plate; 301. Water inlet pipe; 302. Round water tank; 303. Water outlet pipe; 4. T-shaped fixing piece; 5. Limiting cylinder rod; 6. Rack; 7. Transmission gear; 8. Limiting gear; 9. Limiting rod. DETAILED DESCRIPTION

[0043] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0044] Embodiment 1:

[0045] As attached Figure 1 To Attachment Figure 4 As shown:

[0046] The utility model provides an automatic cooling mold opening mechanism, comprising a top mold 1, an L-shaped connecting piece 101, a semicircular groove piece 102, a bottom mold 2, a lifting cylinder rod 201, a water cooling plate 3 and a cooling mechanism;

[0047] A gate is provided on the side of the bottom mold 2, and the molten metal is poured in from the gate;

[0048] The top mold 1 is arranged above the bottom mold 2;

[0049] There are four groups of L-shaped connectors 101, and the four groups of L-shaped connectors 101 are fixedly connected to the front and rear sides of the top mold 1 respectively;

[0050] There are four groups of semicircular groove members 102, and the four groups of semicircular groove members 102 are fixedly connected to the front and rear sides of the top mold 1 respectively;

[0051] There are four groups of lifting cylinder rods 201, which are respectively fixedly connected to the front and rear sides of the bottom mold 2. When the four groups of lifting cylinder rods 201 are extended, the top mold 1 can be lifted up through the four groups of semicircular groove parts 102.

[0052] The water cooling plate 3 is fixedly connected below the bottom mold 2;

[0053] The cooling mechanism is arranged below the bottom mold 2 .

[0054] Wherein, the cooling mechanism includes a water inlet pipe 301 and a water outlet pipe 303;

[0055] The water inlet pipe 301 is arranged on the side of the water cooling plate 3, and one end of the water inlet pipe 301 is arranged inside the water cooling plate 3;

[0056] The water outlet pipe 303 is arranged on the side of the water cooling plate 3 , and one end of the water inlet pipe 301 is arranged inside the water cooling plate 3 .

[0057] Wherein, the cooling mechanism further includes a meandering water tank 302;

[0058] The meandering water groove 302 is arranged inside the water cooling plate 3 , and two ends of the meandering water groove 302 are respectively threadedly connected to one end of the water inlet pipe 301 and one end of the water outlet pipe 303 .

[0059] The specific usage and function of the first embodiment are as follows:

[0060] During use, before the sand mold of the engine cylinder head is opened, the sand mold needs to be cooled first. At this time, normal temperature water is injected into the water cooling plate 3 through the water inlet pipe 301, and the water flows out through the water outlet pipe 303 after passing through the meandering water trough 302. At this time, the normal temperature water will take away the heat in the sand mold, play a role in cooling the molten metal, accelerate the molding of the engine cylinder head, reduce the cooling time of the molten metal, and improve the processing efficiency of the engine cylinder head.

[0061] Embodiment 2:

[0062] Based on the first embodiment, Figures 1 to 6 As shown, it also includes a clamping mechanism, which is arranged on the side of the bottom mold 2;

[0063] Wherein, the clamping mechanism includes a T-shaped fixing member 4 and a limiting cylinder rod 5;

[0064] There are two groups of T-shaped fixing members 4, and the two groups of T-shaped fixing members 4 are fixedly connected to the front and rear sides of the bottom mold 2 respectively;

[0065] There are two groups of limit cylinder rods 5 , and the two groups of limit cylinder rods 5 are fixedly connected inside the two groups of T-shaped fixing members 4 respectively.

[0066] Wherein, the clamping mechanism also includes a rack 6 and a transmission gear 7;

[0067] There are two groups of racks 6, which slide inside two groups of T-shaped fixing members 4 respectively, and are fixedly connected to two groups of limit cylinder rods 5 respectively;

[0068] There are four groups of transmission gears 7 , which are rotatably connected to the inside of the two groups of T-shaped fixing members 4 , and mesh with the two groups of racks 6 , respectively.

[0069] Wherein, the clamping mechanism also includes a limit gear 8 and a limit rod 9;

[0070] There are four groups of limit gears 8, which are rotatably connected to the inside of two groups of T-shaped fixing members 4, and are meshed with four groups of transmission gears 7 respectively.

[0071] There are four groups of limit rods 9, which are respectively arranged inside the two groups of T-shaped fixing members 4, and are respectively fixedly connected to the outer peripheries of the four groups of limit gears 8. The sides of the four groups of limit rods 9 are respectively provided with anti-slip grooves.

[0072] The specific usage and function of the second embodiment are as follows:

[0073] During use, before injecting molten metal, when the top mold 1 is embedded on the top of the bottom mold 2, the extension length of the two sets of limit cylinder rods 5 is reduced, and the two sets of limit cylinder rods 5 drive the two sets of racks 6 to slide, and the sliding of the two sets of racks 6 drives the four sets of transmission gears 7 to rotate, and the rotation of the four sets of transmission gears 7 drives the four sets of limit gears 8 to rotate, and the rotation of the four sets of limit gears 8 drives the four sets of limit rods 9 to swing, and the swing of the four sets of limit rods 9 will press against the four sets of L-shaped connecting pieces 101 respectively, so that the top mold 1 can be more tightly embedded on the top of the bottom mold 2, avoiding the need to tighten and loosen the bolts multiple times when the top mold 1 and the bottom mold 2 are connected by bolts, simplifying the operation process, and improving the production efficiency of the sand mold of the engine cylinder head.

Claims

1. An automatic cooling mold opening mechanism, comprising a top mold (1), an L-shaped connecting piece (101), a semicircular groove piece (102), a bottom mold (2), a lifting cylinder rod (201), a water cooling plate (3), a clamping mechanism and a cooling mechanism; the top mold (1) is arranged above the bottom mold (2); there are four groups of L-shaped connecting pieces (101), and the four groups of L-shaped connecting pieces (101) are respectively fixedly mounted on the front and rear sides of the top mold (1); the characteristics are: There are four groups of semicircular groove members (102), which are respectively fixedly mounted on the front and rear sides of the top mold (1); the clamping mechanism is arranged on the side of the bottom mold (2); the cooling mechanism is arranged below the bottom mold (2); there are four groups of lifting cylinder rods (201), which are respectively fixedly mounted on the front and rear sides of the bottom mold (2); and the water cooling plate (3) is fixedly connected below the bottom mold (2).

2. An automatic cooling mold opening mechanism as claimed in claim 1, characterized in that: The cooling mechanism comprises a water inlet pipe (301) and a water outlet pipe (303); the water inlet pipe (301) is arranged on the side of the water cooling plate (3), and one end of the water inlet pipe (301) is arranged inside the water cooling plate (3); the water outlet pipe (303) is arranged on the side of the water cooling plate (3), and one end of the water inlet pipe (301) is arranged inside the water cooling plate (3).

3. An automatic cooling mold opening mechanism as claimed in claim 2, characterized in that: The cooling mechanism also includes a meandering water trough (302); the meandering water trough (302) is arranged inside the water cooling plate (3), and one end of the water inlet pipe (301) and one end of the water outlet pipe (303) are respectively threadedly connected to two ends of the meandering water trough (302).

4. The automatic cooling mold opening mechanism according to claim 1, characterized in that: The clamping mechanism comprises a T-shaped fixing member (4) and a limiting cylinder rod (5); there are two groups of the T-shaped fixing members (4), and the two groups of T-shaped fixing members (4) are respectively arranged on the front and rear sides of the bottom mold (2); there are two groups of the limiting cylinder rod (5), and the two groups of limiting cylinder rods (5) are respectively fixedly installed inside the two groups of T-shaped fixing members (4).

5. An automatic cooling mold opening mechanism as claimed in claim 4, characterized in that: The clamping mechanism further comprises a rack (6) and a transmission gear (7); there are two groups of the rack (6), the two groups of racks (6) are respectively slid inside the two groups of T-shaped fixing members (4), and the two groups of racks (6) are respectively fixedly connected to the two groups of limit cylinder rods (5); there are four groups of transmission gears (7), the four groups of transmission gears (7) are respectively rotatably installed inside the two groups of T-shaped fixing members (4), and the four groups of transmission gears (7) are respectively meshed with the two groups of racks (6).

6. An automatic cooling mold opening mechanism as claimed in claim 4, characterized in that: The clamping mechanism further comprises a limit gear (8) and a limit rod (9); there are four groups of limit gears (8), which are rotatably mounted inside two groups of T-shaped fixing members (4) respectively, and the four groups of limit gears (8) are respectively meshed with four groups of transmission gears (7); there are four groups of limit rods (9), which are respectively arranged inside two groups of T-shaped fixing members (4) and are respectively fixedly connected to the outer peripheries of the four groups of limit gears (8).

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