Piston shell casting device capable of achieving rapid demolding

Abstract

The utility model relates to the technical field of piston shell casting, in particular to a piston shell casting device capable of quickly demoulding, which comprises a first piston mould and a second piston mould, and demoulding components for quickly demoulding a piston shell are arranged at the bottoms of the first piston mould and the second piston mould. The demolding assembly comprises a center plate located at the bottom of the first piston mold and the bottom of the second piston mold, a rotating rod is rotationally connected to the interior of the center plate in a clamped mode, and the two ends of the rotating rod are fixedly connected with a first screw rod and a second screw rod respectively. The piston shell can be ensured to be uniformly released, so that the condition of demolding difficulty is greatly reduced, a smoother and quicker demolding process is realized, the adhesion phenomenon occurring when a traditional one-way mold is moved is avoided, and the demolding efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of piston shell casting, especially to a piston shell casting device with quick demoulding. BACKGROUND

[0002] The piston shell is a common key component in engines and mechanical equipment, and its manufacturing precision and efficiency have a direct impact on the performance of the equipment. The traditional piston shell casting process usually includes the steps of mold preheating, metal smelting, pouring forming, cooling and solidification, and demolding. Among these steps, the demolding process is particularly critical.

[0003] In the prior art, such as the "Piston Shell Casting Equipment" with Chinese Patent No. CN221603242U, it includes a workbench and a starting lever. The top of the workbench is installed with a support arm, and the outer side of the support arm is connected with a crossbar. The left and right ends of the crossbar are provided with adjusting sleeves, and the inner side of the adjusting sleeves is connected with adjusting screws. This technology is convenient for pouring and cooling multiple groups of piston shell molds at the same time, and improves the working efficiency of the equipment casting. However, this technology still has some defects in actual use. When demolding, the technology moves only one mold to realize demolding operation, which easily causes the formed piston shell to adhere to the unmoved mold, thereby increasing the difficulty of demolding and affecting the operation efficiency. At the same time, since the metal solution is directly injected into the mold for forming during the casting process, it is difficult to achieve complete and uniform adhesion of the inner surface of the mold, which leads to uneven distribution of the metal solution, and the finally generated piston shell is prone to defects such as bubbles and missing corners, thereby affecting the stability of product quality and the consistency of production. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model aims to provide a piston shell casting device with quick demolding to solve the problems of difficult demolding of existing piston shell molds and easy formation of bubbles in the piston shell.

[0005] Based on the above purpose, the utility model provides a kind of piston shell casting device of quick demoulding, including first piston mould and second piston mould, the bottom of first piston mould and second piston mould is provided with the demoulding assembly for the quick demoulding of piston shell, the demoulding assembly includes the center plate in the bottom of first piston mould and second piston mould, rotatingly connected with the rotating rod in the inside of center plate, the two ends of rotating rod are respectively fixedly connected with first screw rod and second screw rod, the outside of first screw rod is threadedly connected with first movable ring, the outside of second screw rod is threadedly connected with second movable ring, the top of first movable ring is fixedly connected with first support, the end of first support away from first movable ring is fixedly connected with second piston mould, the top of second movable ring is fixedly connected with second support, the end of second support away from second movable ring is fixedly connected with first piston mould, the position of first piston mould and second piston mould is corresponding, the bottom of center plate is equipped with shaking assembly, the shaking assembly is used to shake uniformly when casting piston shell mold, to promote metal solution to be more fitted to mold.

[0006] Preferably, one end of the second piston mould is provided with a U-shaped groove, one end of the first piston mould is fixedly connected with a plug, the size of the U-shaped groove is matched with the size of the plug, one side of the top of the first piston mould is communicated with an input pipe, and the input end of the input pipe is communicated with a flared cylinder.

[0007] Preferably, the thread direction of the outside of the second screw rod is opposite to the thread direction of the outside of the first screw rod, the outside of the center plate is fixedly connected with a connecting frame, one end of one side of the connecting frame is fixedly connected with a positioning block, the end of the positioning block away from the connecting frame is provided with a positioning hole, one end of the first screw rod is fixedly connected with a demoulding wheel, one side of the demoulding wheel is fixedly connected with a connecting cylinder, the inside of the connecting cylinder is slidably connected with a fixed rod, and one end of the fixed rod penetrates the inside of the connecting cylinder and is slidably connected with the insertion hole at one end of the positioning block.

[0008] Preferably, the two ends of the connecting frame are respectively fixedly connected with rail plates, the side of the rail plate is provided with a sliding groove, one side of the first movable ring and the second movable ring is respectively fixedly connected with a sliding block, one side of the first movable ring and the second movable ring is respectively slidably connected with the sliding groove of one side of the two rail plates through the sliding block, and the length of the two rail plates is respectively equal to the length of the first movable ring and the second movable ring.

[0009] Preferably, the top of the center plate is fixedly connected with a fixed block, the top of the fixed block is fixedly connected with a conveying plate in an inclined manner, and the position of the conveying plate is located at the bottom when the first piston mould and the second piston mould are connected together.

[0010] Preferably, the shaking assembly comprises a first bevel gear and a second bevel gear rotatably connected to the outer part of both ends of the rotating rod, the first bevel gear and the second bevel gear are mirror images, the positions of the first bevel gear and the second bevel gear are at both ends of the center plate respectively, the bottom of the first bevel gear and the second bevel gear is meshed with an umbrella-shaped tooth, the bottom of the umbrella-shaped tooth is fixedly connected with a base, and the middle part of the bottom of the center plate is rotatably connected with the middle part of the top of the base.

[0011] Preferably, the outer part of both ends of the rotating rod is fixedly connected with a blocking ring respectively, one end of the first bevel gear and the second bevel gear is fixedly connected with a hoop ring respectively, and the outer part of the blocking ring is rotatably connected with the inner part of the hoop ring.

[0012] Preferably, one side of the base is fixedly connected with a fixed seat, the inner part of the top of the base is rotatably connected with a driven sprocket, the top of the driven sprocket is fixedly connected with the bottom of the middle part of the center plate through a shaft penetrating the inner part of the umbrella-shaped tooth, the inner part of the top of the fixed seat is rotatably connected with a main sprocket, and one side of the main sprocket is drivingly connected with the outer part of the driven sprocket through a chain.

[0013] Preferably, the top of the fixed seat is rotatably connected with a rotating wheel, the bottom of the rotating wheel is fixedly connected with the top of the main sprocket through a shaft penetrating the top of the fixed seat, the top of the fixed seat is provided with a insertion hole, the top of the rotating wheel is fixedly connected with a crank handle, the inner part of the crank handle is slidably connected with an insertion rod, and the bottom end of the insertion rod is slidably connected with the inner part of the insertion hole of the top of the fixed seat.

[0014] The utility model discloses a beneficial effect:

[0015] 1. The demoulding assembly is provided with a first screw rod and a second screw rod, one of which rotates clockwise, and the other rotates counterclockwise. The bidirectional rotation of the two screw rods can synchronously drive the first piston mold and the second piston mold to move away from each other in opposite directions. The cooperation of bidirectional rotation avoids the traditional design of a unidirectional screw rod that can only push one mold, so that the two molds can be smoothly and uniformly separated, preventing the piston shell from sticking to the stationary mold due to insufficient movement of a single mold during demoulding. Since the rotation directions of the two screw rods are opposite, the piston shell can be uniformly released, thereby greatly reducing the difficulty of demoulding and achieving a smoother and faster demoulding process. The sticking phenomenon that occurs when a traditional unidirectional moving mold is used is avoided, and the demoulding efficiency is improved.

[0016] 2. By setting the shaking assembly, during the casting process, the conical teeth rotate at the top of the umbrella teeth to enable the mold to produce left and right shaking actions, when the metal solution is injected into the mold, the shaking action makes the solution flow uniformly inside the mold, and better fit on the inner surface of the mold, the conical teeth ensure the uniformity of the shaking process through the transmission action with the chain wheel and the main chain wheel, so that the metal solution can be fully covered in every corner and subtle position of the mold, in this way, the metal solution can be better filled in the mold, reducing the generation of bubbles and missing corners, improving the quality and surface smoothness of the piston shell casting, thereby avoiding the defects caused by uneven solution in the traditional casting process. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, obviously, the drawings in the following description are only the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0018] Figure 1 It is the whole three-dimensional structure schematic diagram of the utility model;

[0019] Figure 2 It is the partial enlarged structure schematic diagram of the demolding assembly of the utility model;

[0020] Figure 3 It is the enlarged structure schematic diagram of the umbrella teeth, the first conical teeth and the second conical teeth of the utility model;

[0021] Figure 4 It is the utility model Figure 2 It is the side view sectional structure schematic diagram;

[0022] Figure 5 It is the side view sectional structure schematic diagram of the first piston mold and the second piston mold of the utility model;

[0023] Figure 6 It is the side view sectional structure schematic diagram of the first conical teeth and the rotating rod of the utility model.

[0024] The marks in the figure are:

[0025] 1, the first piston die; 2, the second piston die; 3, input pipe; 4, flared barrel; 5, first support; 6, second support; 7, first movable ring; 8, second movable ring; 9, center plate; 10, connecting frame; 11, first screw; 12, second screw; 13, first conical tooth; 14, second conical tooth; 15, stripper wheel; 16, connecting barrel; 17, fixed rod; 18, alignment block; 19, fixed block; 20, conveying plate; 21, umbrella-shaped tooth; 22, from sprocket; 23, main sprocket; 24, base; 25, fixed seat; 26, runner; 27, crank; 28, insertion rod; 29, plug; 30, U-shaped groove; 31, rotating rod; 32, blocking ring; 33, hoop; 34, track plate. DETAILED DESCRIPTION

[0026] To make the purpose, technical scheme and advantages of the present application clearer, the present application will be further described in detail below with specific examples.

[0027] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present application should be understood as the usual meaning understood by those skilled in the art to which the present application belongs. The "first", "second" and similar words used in the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Include" or "contain" and similar words mean that the elements or objects before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connected" or "connected" and similar words are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0028] As the present application Figures 1 to 6The piston shell casting device that provides quick demolding includes a first piston mold 1 and a second piston mold 2, the bottoms of the first piston mold 1 and the second piston mold 2 are provided with a demolding assembly for quick demolding of the piston shell, the demolding assembly includes a center plate 9 at the bottoms of the first piston mold 1 and the second piston mold 2, a rotating rod 31 is rotatably connected inside the center plate 9, the two ends of the rotating rod 31 are fixedly connected with a first screw rod 11 and a second screw rod 12 respectively, the outside of the first screw rod 11 is threadedly connected with a first movable ring 7, the outside of the second screw rod 12 is threadedly connected with a second movable ring 8, the top of the first movable ring 7 is fixedly connected with a first support 5, the end of the first support 5 away from the first movable ring 7 is fixedly connected with the second piston mold 2, the top of the second movable ring 8 is fixedly connected with a second support 6, the end of the second support 6 away from the second movable ring 8 is fixedly connected with the first piston mold 1, the positions of the first piston mold 1 and the second piston mold 2 correspond to each other, a shaking assembly is installed at the bottom of the center plate 9, the shaking assembly is used for uniform shaking when the piston shell mold is cast, so as to make the metal solution more conform to the mold;

[0029] Through the demolding assembly, one of the first screw rod 11 and the second screw rod 12 rotates clockwise, and the other rotates counterclockwise, through the bidirectional rotation of the two screw rods, the first piston mold 1 and the second piston mold 2 can be synchronously driven to move away from each other in opposite directions, the cooperation of the bidirectional rotation avoids the traditional design that the unidirectional screw rod can only push one mold, so that the two molds can be smoothly and uniformly separated, and the piston shell is prevented from sticking to the stationary mold due to insufficient movement of a single mold during demolding, since the rotation directions of the two screw rods are opposite, it can be ensured that the piston shell is uniformly released, thereby greatly reducing the demolding difficulty, so as to realize a more smooth and quick demolding process, avoid the sticking phenomenon that occurs when the traditional unidirectional moving mold is used, and improve the demolding efficiency.

[0030] As Figures 1 to 5 shown, one end of the second piston mold 2 is provided with a U-shaped groove 30, one end of the first piston mold 1 is fixedly connected with a plug 29, the specification size of the U-shaped groove 30 is matched with the specification size of the plug 29, one side of the top of the first piston mold 1 is communicated with an input pipe 3, and the input end of the input pipe 3 is communicated with a flared cylinder 4;

[0031] Through the setting of the plug 29 and the U-shaped groove 30, before casting, first rotate the first screw rod 11, through the connecting effect of the rotating rod 31 connecting the first screw rod 11 and the second screw rod 12, make the first screw rod 11 and the second screw rod 12 rotate at the same time, at this time through the thread effect, the first movable ring 7 and the second movable ring 8 will move outside the first screw rod 11 and the second screw rod 12 respectively, at the same time make the first support 5 with the second piston mold 2 and the second support 6 with the first piston mold 1 close to each other, at this time when the first movable ring 7 and the second movable ring 8 move to one side of the first tapered tooth 13 and the second tapered tooth 14 respectively, the plug 29 will be inserted into the inside of the U-shaped groove 30, and then make the first piston mold 1 and the second piston mold 2 connect with each other into a mold, so as to facilitate the connection of the first piston mold 1 and the second piston mold 2, also increase the sealing of the connection of the first piston mold 1 and the second piston mold 2, at this time pour the metal solution from the inside of the flared barrel 4 into the inside of the first piston mold 1 and the second piston mold 2 through the input pipe 3, and then facilitate the forming of the piston shell in the later period.

[0032] As shown in Figures 1 to 5 The direction of the thread outside the second screw rod 12 is opposite to the direction of the thread outside the first screw rod 11, the outer part of the center plate 9 is fixedly connected with the connecting frame 10, one end of one side of the connecting frame 10 is fixedly connected with the alignment block 18, the end of the alignment block 18 away from the connecting frame 10 is provided with the positioning hole, one end of the first screw rod 11 is fixedly connected with the demolding wheel 15, one side of the demolding wheel 15 is fixedly connected with the connecting barrel 16, the inside of the connecting barrel 16 is slidably connected with the fixed rod 17, one end of the fixed rod 17 penetrates through the inside of the connecting barrel 16 and is slidably connected with the insertion hole at one end of the alignment block 18;

[0033] When the metal solution inside the first piston mold 1 and the second piston mold 2 is cooled to form a piston shell along the mold, the first screw rod 11 is rotated with the second screw rod 12 by reversing the rotation of the demolding wheel 15. At this time, the second movable ring 8 and the first movable ring 7 will move away from each other because the threads outside the first movable ring 7 and the second movable ring 8 are opposite. This promotes the first movable ring 7 to move away from the second piston mold 2 with the second support 6 moving away from the first piston mold 1, thereby promoting the bidirectional movement of the piston shell to demold the piston shell. This avoids the problem that the piston shell is easily stuck in the mold during traditional unidirectional demolding. Because of the bidirectional movement, the forces are the same, so a pulling force is generated. Under the action of the pulling force, the mold is moved away from each other. Through the interaction, the piston shell will fall off between the first piston mold 1 and the second piston mold 2, thereby completing the rapid demolding of the piston shell. At the same time, when the first piston mold 1 and the second piston mold 2 are in close contact, the fixed rod 17 is connected to the one end of the alignment block 18 through the inside of the connecting cylinder 16, thereby fixing the position of the demolding wheel 15. This avoids the problem that the first piston mold 1 and the second piston mold 2 move away from each other when forming the piston shell.

[0034] As shown in Figure 1 The two ends of the connecting frame 10 are fixedly connected with track plates 34, one side of the track plate 34 is provided with a sliding groove, one side of the first movable ring 7 and the second movable ring 8 is fixedly connected with a sliding block, and one side of the first movable ring 7 and the second movable ring 8 is slidably connected with the sliding groove on one side of the two track plates 34 through the sliding block. The lengths of the two track plates 34 are equal to the lengths of the first movable ring 7 and the second movable ring 8.

[0035] The track plates 34 ensure the stable movement of the first movable ring 7 and the second movable ring 8 outside the first screw rod 11 and the second screw rod 12, thereby facilitating the connection and mutual movement of the first piston mold 1 and the second piston mold 2 for demolding.

[0036] As shown in Figure 1 The top of the center plate 9 is fixedly connected with a fixed block 19, the top of the fixed block 19 is fixedly connected with a conveying plate 20 at an angle, and the position of the conveying plate 20 is located at the bottom when the first piston mold 1 and the second piston mold 2 are connected together.

[0037] When the first piston mold 1 and the second piston mold 2 move away from each other for demolding, the piston shell inside will fall off between the first piston mold 1 and the second piston mold 2 and fall into the inside of the top of the conveying plate 20. At this time, the piston shell will be output from one side of the top of the umbrella-shaped tooth 21 by setting the angle of the conveying plate 20, thereby facilitating the output of the piston shell.

[0038] As shown inFigures 1 to 6 As shown, the shaking assembly comprises a first bevel gear 13 and a second bevel gear 14 rotatably connected to the outer part of both ends of the rotating rod 31, the first bevel gear 13 and the second bevel gear 14 are mirror images, the positions of the first bevel gear 13 and the second bevel gear 14 are at both ends of the center plate 9 respectively, the bottom of the first bevel gear 13 and the second bevel gear 14 is meshingly connected with the umbrella-shaped tooth 21, the bottom of the umbrella-shaped tooth 21 is fixedly connected with the base 24, the middle part of the bottom of the center plate 9 is rotatably connected with the middle part of the top of the base 24, the outer part of both ends of the rotating rod 31 is fixedly connected with the blocking ring 32 respectively, one end of the first bevel gear 13 and the second bevel gear 14 is fixedly connected with the hoop 33 respectively, the outer part of the blocking ring 32 is rotatably connected with the inner part of the hoop 33;

[0039] Through the shaking assembly, in the casting process, the bevel gear rotates at the top of the umbrella-shaped tooth 21, so that the mold can produce left and right shaking action, when the metal solution is injected into the mold, this shaking action makes the solution flow uniformly in the mold, and better fit in the inner surface of the mold, the bevel gear ensures the uniformity of the shaking process through the transmission action with the chain wheel 22 and the main sprocket 23, so that the metal solution can be fully covered in every corner and subtle position of the mold, in this way, the metal solution can better fill in the mold, reducing the generation of bubbles and angle defects, improving the quality and surface smoothness of the piston shell casting, thereby avoiding the defects caused by uneven solution in the traditional casting process, when the first piston mold 1 and the second piston mold 2 are connected and the inside is injected with metal solution, by rotating the center plate 9, the connecting frame 10 with the first bevel gear 13 and the second bevel gear 14 at the top of the umbrella-shaped tooth 21 is rolled along the track of the umbrella-shaped tooth 21, at this time, by rotating the center plate 9 left and right, the first support 5 and the second support 6 with the first piston mold 1 and the second piston mold 2 are shaken left and right, thereby promoting the metal solution inside the first piston mold 1 and the second piston mold 2 to be shaken evenly, so that the metal solution is more fitted to the inside of the mold, thereby avoiding the problems of bubbles and angle defects in the later produced piston shell, thereby ensuring the production quality of the piston shell, at the same time, through the setting of the blocking ring 32 and the hoop 33, the first bevel gear 13 and the rotating rod 31 can be rotated respectively, while ensuring that the position of the first bevel gear 13 outside the rotating rod 31 does not change, thereby facilitating the use of the first bevel gear 13 and the rotating rod 31, when the rotating rod 31 is rotated, the rotating rod 31 with the blocking ring 32 rotates inside the hoop 33, thereby avoiding the problem that the rotating rod 31 drives the first bevel gear 13 to rotate, at the same time, when the first bevel gear 13 rotates, the hoop 33 will rotate outside the blocking ring 32, thereby avoiding the problem that the first bevel gear 13 rotates drives the rotating rod 31 to rotate.

[0040] As Figures 1 to 4As shown, one side of the base 24 is fixedly connected with a fixed seat 25, the inside of the top of the base 24 is rotatably connected with the sprocket 22, the top of the sprocket 22 is fixedly connected with the inside of the bottom of the middle part of the center plate 9 through the shaft penetrating the inside of the umbrella-shaped tooth 21, the inside of the top of the fixed seat 25 is rotatably connected with the main sprocket 23, one side of the main sprocket 23 is drivingly connected with the outside of the sprocket 22 through the chain, the top of the fixed seat 25 is rotatably connected with the rotating wheel 26, the bottom of the rotating wheel 26 is fixedly connected with the top of the main sprocket 23 through the shaft penetrating the top of the fixed seat 25, the top of the fixed seat 25 is provided with a insertion hole, the top of the rotating wheel 26 is fixedly connected with the crank 27, the inside of the crank 27 is slidingly connected with the insertion rod 28, the bottom end of the insertion rod 28 is slidingly connected with the inside of the insertion hole of the top of the fixed seat 25 through the inside of the crank 27;

[0041] Through the rotating wheel 26 and the insertion rod 28 arranged, when the first conical tooth 13 and the second conical tooth 14 are rotated, the rotating wheel 26 is first rotated, the main sprocket 23 is driven to rotate with the sprocket 22, at this time, the sprocket 22 drives the center plate 9 to rotate, further drives the connecting frame 10 to rotate, drives the connecting frame 10 to drive the rotating rod 31 to rotate, drives the rotating rod 31 to rotate along the track of the umbrella-shaped tooth 21 with the first conical tooth 13 and the second conical tooth 14, so that the first piston mold 1 and the second piston mold 2 are shaken, and the use of the device is facilitated, and through the insertion rod 28 arranged, when the metal solution is shaken left and right, the insertion rod 28 is inserted into the insertion hole in the top of the fixed seat 25, so that the position of the center plate 9 is limited, and the demolding of the first piston mold 1 and the second piston mold 2 is facilitated.

[0042] Those skilled in the art will understand that the discussion of any of the above embodiments is merely exemplary and is not intended to limit the scope of the present application (including claims) to these examples; under the thought of the present application, the above embodiments or technical features in different embodiments can also be combined, steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above, which are not provided in details for the sake of brevity.

[0043] The present application is intended to cover all such alternatives, modifications, and variations as fall within the broad scope of the appended claims. Accordingly, any and all such alternatives, modifications, equivalents, improvements and the like are intended to be encompassed by the present application.

Claims

1. A piston housing casting device with rapid demolding capability, comprising a first piston mold (1) and a second piston mold (2), characterized in that, The bottom of the first piston mold (1) and the second piston mold (2) is provided with a demolding assembly for quickly demolding the piston shell. The demolding assembly includes a center plate (9) located at the bottom of the first piston mold (1) and the second piston mold (2). A rotating rod (31) is rotatably engaged inside the center plate (9). The two ends of the rotating rod (31) are respectively fixedly connected to a first screw (11) and a second screw (12). The external thread of the first screw (11) is connected to a first movable ring (7). The external thread of the second screw (12) is connected to a second movable ring (8). The top of the first movable ring (7) is fixedly connected to a first bracket (5). The end of the first bracket (5) away from the first movable ring (7) is fixedly connected to the second piston mold (2). The top of the second movable ring (8) is fixedly connected to a second bracket (6). The end of the second bracket (6) away from the second movable ring (8) is fixedly connected to the first piston mold (1). The positions of the first piston mold (1) and the second piston mold (2) are corresponding. The bottom of the center plate (9) is equipped with a shaking component, which is used to shake the piston housing mold evenly during the molding process, thereby making the molten metal adhere more closely to the mold.

2. The piston housing casting device with rapid demolding capability according to claim 1, characterized in that, The second piston mold (2) has a U-shaped groove (30) at one end, and a plug (29) is fixedly connected to one end of the first piston mold (1). The size of the U-shaped groove (30) is compatible with the size of the plug (29). An input pipe (3) is connected to one side of the top of the first piston mold (1), and the input end of the input pipe (3) is connected to a flared cylinder (4).

3. The piston housing casting device with rapid demolding capability according to claim 2, characterized in that, The thread direction of the second screw (12) is opposite to that of the thread direction of the first screw (11). A connecting frame (10) is fixedly connected to the outside of the center plate (9). A positioning block (18) is fixedly connected to one end of one side of the connecting frame (10). A positioning hole is opened at the end of the positioning block (18) away from the connecting frame (10). A demolding wheel (15) is fixedly connected to one end of the first screw (11). A connecting cylinder (16) is fixedly connected to one side of the demolding wheel (15). A fixing rod (17) is slidably connected inside the connecting cylinder (16). One end of the fixing rod (17) passes through the inside of the connecting cylinder (16) and is slidably connected to the insertion hole at one end of the positioning block (18).

4. The piston housing casting device with rapid demolding capability according to claim 3, characterized in that, The two ends of the connecting frame (10) are respectively fixedly connected to the track plate (34). A groove is provided on one side of the track plate (34). A slider is fixedly connected to one side of the first movable ring (7) and the second movable ring (8). One side of the first movable ring (7) and the second movable ring (8) are respectively slidably connected to the groove on one side of the two track plates (34) through the slider. The lengths of the two track plates (34) are equal to the lengths of the first movable ring (7) and the second movable ring (8).

5. The piston housing casting device with rapid demolding capability according to claim 1, characterized in that, A fixing block (19) is fixedly connected to the top of the center plate (9), and a conveying plate (20) is fixedly connected to the top of the fixing block (19) at an incline. The conveying plate (20) is located at the bottom when the first piston mold (1) and the second piston mold (2) are connected together.

6. The piston housing casting device with rapid demolding capability according to claim 5, characterized in that, The rocking assembly includes a first conical tooth (13) and a second conical tooth (14) that are rotatably engaged with the outside of both ends of the rotating rod (31). The first conical tooth (13) and the second conical tooth (14) are arranged in a mirror image. The positions of the first conical tooth (13) and the second conical tooth (14) are located at both ends of the center plate (9). The bottom of the first conical tooth (13) and the second conical tooth (14) are meshed with umbrella-shaped teeth (21). The bottom of the umbrella-shaped teeth (21) is fixedly connected to a base (24). The middle part of the bottom of the center plate (9) is rotatably connected to the middle part of the top of the base (24) through a shaft.

7. A piston housing casting device with rapid demolding capability according to claim 6, characterized in that, The outer ends of the rotating rod (31) are respectively fixedly connected to the outer side of the rod, and the first conical tooth (13) and the second conical tooth (14) are respectively fixedly connected to the end of the hoop (33). The outer side of the rod (32) is rotatably connected to the inner side of the hoop (33).

8. A piston housing casting device with rapid demolding capability according to claim 6, characterized in that, A fixed seat (25) is fixedly connected to one side of the base (24). A sprocket (22) is rotatably connected to the inside of the top of the base (24). The top of the sprocket (22) is fixedly connected to the bottom of the center plate (9) through the inside of the umbrella-shaped tooth (21) via a shaft. A main sprocket (23) is rotatably connected to the inside of the top of the fixed seat (25). One side of the main sprocket (23) is connected to the outside of the sprocket (22) via a chain.

9. A piston housing casting device with rapid demolding capability according to claim 8, characterized in that, The top of the fixed base (25) is rotatably connected to a rotating wheel (26). The bottom of the rotating wheel (26) passes through the top of the fixed base (25) and is fixedly connected to the top of the main sprocket (23) via a shaft. The top of the fixed base (25) is provided with an insertion hole. The top of the rotating wheel (26) is fixedly connected to a crank handle (27). The inside of the crank handle (27) is slidably connected to a plug rod (28). The bottom end of the plug rod (28) passes through the inside of the crank handle (27) and is slidably connected to the inside of the insertion hole at the top of the fixed base (25).

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