A thin-walled high-strength gray cast iron cylinder body and its casting process

Abstract

The invention discloses a thin-walled high-strength gray cast iron cylinder body and a casting forming process thereof, belonging to the field of casting forming technology. The invention comprises a fixed seat, an inner stopper and two outer stoppers, wherein the inner stopper is installed in the middle of the fixed seat, and the two outer stoppers are slidably installed on the fixed seats on both sides of the inner stopper, the inner stopper comprises a base, an inner liner mounted on the base which can expand or contract toward the four corners of the base, and an adjusting component on the base for controlling the contraction and expansion of the inner liner, the top surface of the inner liner is perpendicular to the two side surfaces, and the bottom surface is a receiving surface, which provides or retracts the inner liner sections for the top surface and the two side surfaces when the four corners expand or contract; the outer stopper comprises an angle plate, a horizontal containment block and a vertical containment block; the angle plates, the horizontal containment block and the vertical containment block on both sides form a U-shaped concrete mold cavity with the inner liner, and a casting port is provided between the angle plates and the vertical containment blocks on both sides, through the above structure, the casting and forming thickness of the U-shaped concrete mold can be adjusted according to demand, and the mechanized design is convenient for casting and demolding.

Description

Technical Field

[0001] The invention relates to the technical field of mold shell forming machines, and in particular to a thin-wall high-strength gray cast iron cylinder body and a casting process thereof. Background Art

[0002] Most of the existing cast iron cylinder formwork shells adopt U-shaped concrete formwork shells, which are surrounded by three concrete slabs, and the angle between adjacent concrete slabs is 90 degrees. The production process is mainly customized according to the size of the structural columns on the construction site. The U-shaped concrete formwork shell is cast and molded in one piece by a customized mold. However, there are mainly two types of existing molds. One is a simple mold, which is customized according to the size of the cast concrete formwork shell. Its main disadvantage is that the size is fixed, it is not convenient to adjust the thickness of the concrete formwork shell, and it is not convenient to remove the mold. The second is to use a formwork shell forming machine, which mainly designs a plurality of baffles to form a U-shaped concrete formwork shell cavity. After casting and forming, the baffles are mechanically controlled to detach, and the manufacturing and demolding efficiency are improved by mechanical means. However, the U-shaped concrete formwork shell cavity surrounded by the baffles of the existing formwork shell forming machine is a fixed size, which cannot meet the function of adjusting the thickness of the U-shaped concrete formwork shell according to on-site needs.

[0003] Based on the above problems, the present invention proposes a thin-walled high-strength gray cast iron cylinder body and a casting process thereof. Summary of the invention

[0004] In view of the problems in the above technical background, the purpose of the present invention is to provide a thin-walled high-strength gray cast iron cylinder body and its casting process, which solves the problem that the existing U-shaped concrete formwork casting and production devices or equipment mentioned in the background technology cannot adjust the forming thickness according to on-site requirements.

[0005] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0006] A thin-walled high-strength gray cast iron cylinder body and its casting process, comprising a fixed seat, an inner stopper and two outer stoppers, the inner stopper being installed in the middle of the fixed seat, and the two outer stoppers being slidably installed on the fixed seats on both sides of the inner stopper, the inner stopper comprising a base, a liner mounted on the base which can expand or contract toward the four corners of the base, and an adjustment component on the base for controlling the expansion and contraction of the liner, the top surface of the liner being perpendicular to the two side surfaces, and the bottom surface being a storage surface, which provides or retracts the liner sections for the top surface and the two side surfaces when the four corners are expanded or contracted; the outer stopper comprises an angle plate, a horizontal containment block inserted on the vertical surface of one side of the angle plate, and a vertical containment block inserted on the horizontal surface of the other side of the angle plate; the angle plates, horizontal containment blocks, vertical containment blocks and the inner liner on both sides form a U-shaped concrete mold cavity, and casting ports are provided between the angle plates and the vertical containment blocks on both sides.

[0007] The design idea is based on the structural characteristics of the U-shaped concrete formwork. Compared with the traditional fixed mold or forming machine, the U-shaped concrete formwork cavity is formed by the outer retaining part, the horizontal containment blocks and vertical containment blocks installed on the outer retaining part for sealing at both ends, and the inner liner that can expand or shrink at the four corners as the inner bottom containment. The expansion or contraction of the four corners of the inner liner is controlled by adjusting the components, that is, the distance between the top surface and the two side surfaces of the inner liner and the two side corner plates, thereby realizing the control of pouring of different thicknesses. At the same time, the horizontal containment blocks and the vertical containment blocks are plug-in, that is, after the spacing is adjusted, the horizontal containment blocks and the vertical containment blocks can be inserted to adjust the depth of adaptation, and finally the function of adjusting the thickness of the U-shaped concrete formwork cavity according to needs is realized.

[0008] In the above technical solution, further, a longitudinal multi-layer equipment groove is provided on the base, and the equipment groove includes four first equipment grooves extending to the four corners of the base and a second equipment groove extending to the middle and lower direction. A first telescopic member is provided in the first equipment groove, and the movable ends of multiple first telescopic members arranged in the same longitudinal direction are connected to the first support rod. A second telescopic member is provided in the second equipment groove, and the movable ends of multiple second telescopic members are connected to the third support rod, and the lining is mounted on the four first support rods and the third support rod.

[0009] In the above technical solution, further, the two first struts at the top are each provided with a plurality of second struts in horizontal and vertical directions, and the horizontal second struts connected to the two first struts are staggered.

[0010] In the above technical solution, further, the fixing seat includes two lateral bases and two slide rails, the two ends of the two lateral bases are connected by the two slide rails, and the two ends of the base are installed in the middle of the two slide rails by providing legs.

[0011] In the above technical scheme, further, the outer blocking part also includes a third telescopic part and a U-shaped frame. The third telescopic part is arranged on the lateral base, and the output end is connected to the frame. The bottom of the two longitudinal ends of the frame are slidably arranged on two slide rails. The angle plate is rotatably installed on the frame. A U-shaped horizontal slot is penetrated through the vertical surface of the angle plate. The horizontal containment block is inserted in the horizontal slot. A threaded rod is also provided in the middle of the outer side of the vertical surface of the angle plate. A limit block is also provided on the horizontal containment block. The threaded rod penetrates the limit block and is installed on the nut.

[0012] In the above technical solution, further, a protrusion that matches the corner of the lining is provided on the inner top of the horizontal containment block when inserted.

[0013] In the above technical solution, further, vertical slots are symmetrically penetrated at both ends of the horizontal plane of the angle plate in the longitudinal direction, the vertical containment block is U-shaped, and the two ends are respectively inserted into the front and rear vertical slots, and a support bolt is threadedly installed in the middle of the vertical containment block.

[0014] In the above technical solution, further, a merged inner pouring port is provided in the middle of the angle plates on both sides, and a merged outer pouring port is provided in the middle of one side of the top plate of the vertical containment blocks on both sides, and the inner pouring port and the outer pouring port overlap vertically.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] The design is based on the structural characteristics of the U-shaped concrete formwork. Compared with the traditional fixed mold or forming machine, the U-shaped concrete formwork cavity is formed by an outer retaining part, horizontal and vertical containment blocks for sealing at both ends installed on the outer retaining part, and an inner liner that can expand or shrink at four corners as an inner bottom containment. The expansion or contraction of the four corners of the inner liner is controlled by adjusting the components, that is, the distance between the top surface and the two side surfaces of the inner liner and the two side corner plates, thereby realizing the control of pouring of different thicknesses. At the same time, the horizontal and vertical containment blocks are plug-in, that is, after the distance is adjusted, the horizontal and vertical containment blocks can be inserted to adjust the depth of adaptation, and finally the function of adjusting the thickness of the U-shaped concrete formwork cavity according to needs is realized. At the same time, the formwork forming machine proposed by the present invention is convenient for pouring and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of the installation of a mold shell forming machine provided in an embodiment of the present invention;

[0018] Figure 2 A three-dimensional diagram of a shell forming machine provided by an embodiment of the present invention with one side of the outer retaining portion removed;

[0019] Figure 3 A three-dimensional diagram of a partially separated installation of a fixing seat and an inner stopper provided in an embodiment of the present invention;

[0020] Figure 4 A partial installation perspective view of a fixing seat and an inner stopper provided in an embodiment of the present invention;

[0021] Figure 5 This is an exploded three-dimensional diagram of the outer blocking portion provided by an embodiment of the present invention.

[0022] In the figure: 100, fixed seat; 110, lateral base; 120, slide rail;

[0023] 200, inner stopper; 210, base; 211, first equipment slot; 212, second equipment slot; 220, legs; 230, first telescopic member; 240, first support rod; 250, second support rod; 260, third support rod; 270, lining; 280, second telescopic member;

[0024] 300, outer retaining part; 310, third telescopic member; 320, frame; 330, angle plate; 331, horizontal slot; 332, vertical slot; 333, inner pouring port; 334, threaded rod; 340, horizontal containment block; 341, limit block; 342, protrusion; 350, vertical containment block; 351, support bolt; 352, outer pouring port. DETAILED DESCRIPTION

[0025] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0026] Embodiment 1

[0027] like Figure 1-5 As shown, the fixed base 100 is a frame-shaped base formed by two lateral bases 110 and two slide rails 120. A base 210 is installed overhead in the middle of the two slide rails 120, that is, the bottoms of the two longitudinal ends of the base 210 are installed in the middle of the two slide rails 120 through legs 220. The transverse section of the base 210 is X-shaped. The base 210 is provided with multiple layers of longitudinally distributed equipment slots, and the equipment slots include four first equipment slots 211 extending toward the four corners and a second equipment slot 212 toward the middle and lower part. A first telescopic member 230 is installed in the first equipment slot 211, and a second telescopic member 280 is installed in the second equipment slot 212. The telescopic ends of multiple longitudinally distributed first telescopic members 230 are fixedly connected to a first support rod 240, and multiple second telescopic members 2 The telescopic end of the liner 270 is fixedly connected with the second support rod 250, that is, the liner 270 is propped up by four first support rods 240 and one second support rod 250, and the tension of the top surface, the two side surfaces and the bottom surface of the liner 270 is controlled by controlling the extension of the multiple second telescopic members 280. When expanding, the cross-sectional length of the top surface and the two side surfaces of the liner 270 is proportionally enlarged by controlling the extension of the multiple first telescopic members 230, and at this time, the multiple second telescopic members 280 are contracted. When contracting, the cross-sectional length of the top surface and the two side surfaces of the liner 270 is proportionally reduced by controlling the contraction of the multiple first telescopic members 230, and at this time, the multiple second telescopic members 280 are extended, thereby realizing the function of changing the distance between the inner stop 200 and the outer stop 300 by the contraction and expansion of the liner 270;

[0028] The first telescopic member 230 and the second telescopic member 280 are electric telescopic cylinders or hydraulic telescopic rods. By setting the base 210 into an X shape, it is convenient to control the wiring of the plurality of first telescopic members 230 and the plurality of second telescopic members 280;

[0029] The two slide rails 120 are provided with sliding grooves on the facing surfaces to slide and install the U-shaped frame 320. The frame 320 opens upward, and a plurality of third telescopic members 310 are installed on the lateral bases 110 on both sides. The third telescopic member 310 is an electric telescopic cylinder or a hydraulic telescopic rod. The movable end of the third telescopic member 310 is connected to one side of the bottom of the frame 320. The top of the frame 320 is rotatably installed with an angle plate 330. The right-angled front and rear ends of the angle plate 330 are rotating installation points. The vertical surface of the angle plate 330 is penetrated by a U-shaped horizontal slot 331. The horizontal containment block 340 is inserted into the horizontal slot 331. A threaded rod 334 is also provided in the middle of the outer side of the vertical surface of the angle plate 330. A limit block 341 is also provided on the horizontal containment block 340. The threaded rod 334 penetrates the limit block 341 and is installed on the nut. A protrusion 342 is provided on the inner top end to match the corner of the liner 270. Vertical slots 332 are symmetrically provided at both ends of the horizontal plane of the angle plate 330. The vertical containment block 350 is U-shaped, and both ends are respectively inserted into the front and rear vertical slots 332. A support bolt 351 is threadedly installed in the middle of the vertical containment block 350. By tightening the nut and the support bolt 351, the inner end of the horizontal containment block 340 and the side of the liner 270 and the bottom end of the vertical containment block 350 and the top surface of the liner 270 are respectively controlled to fully fit. Finally, a U-shaped concrete mold cavity is formed by the angle plates 330 on both sides, the top surface of the liner 270 and the two side surfaces and the two groups of horizontal containment blocks 340 and vertical containment blocks 350. The protrusion 342 is provided to avoid gaps at the corners of the liner 270 and leakage during pouring.

[0030] The middle part of the angle plates 330 on both sides is provided with a merged and matched inner pouring opening 333, and the middle part of the top plate of the vertical containment blocks 350 on both sides is provided with a merged and matched outer pouring opening 352. The inner pouring opening 333 and the outer pouring opening 352 overlap vertically. During pouring, concrete is injected into the U-shaped concrete mold cavity through the outer pouring opening 352 and the inner pouring opening 333. After curing and forming, the angle plates 330 are first knocked to separate from the concrete, and the frame 320 is controlled to move outward by the third telescopic parts 310 on both sides, thereby realizing the function of demolding, and at the same time, the angle plates 330 are rotated to facilitate cleaning of the residues on the inside.

[0031] like Figure 3 , 4 As shown, the two first support rods 240 at the top are each provided with a plurality of second support rods 250 in horizontal and vertical directions, and the horizontal second support rods 250 connected to the two first support rods 240 are staggered. By arranging the second support rods 250, deformation of the top surface and the two side surfaces of the lining 270 due to the gravity or lateral extrusion force of the concrete is avoided, thereby increasing the homogeneity of the U-shaped concrete formwork forming plane.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A thin-walled high-strength gray cast iron cylinder casting process, comprising a U-shaped concrete formwork casting and manufacturing device used for casting a thin-walled high-strength gray cast iron cylinder for the cylinder casting process, the U-shaped concrete formwork casting and manufacturing device used for casting a thin-walled high-strength gray cast iron cylinder comprises a fixed seat (100), an inner stopper (200) and two outer stoppers (300), the inner stopper (200) is installed in the middle of the fixed seat (100), and the two outer stoppers (300) are slidably installed on the fixed seat (100) on both sides of the inner stopper (200), characterized in that: The inner stopper (200) comprises a base (210), an inner lining (270) mounted on the base (210) and capable of expanding or contracting toward the four corners of the base (210), and an adjustment component provided on the base (210) for controlling the expansion and contraction of the inner lining (270); the top surface of the inner lining (270) is perpendicular to the two side surfaces, and the bottom surface is a storage surface, which provides or retracts the inner lining section for the top surface and the two side surfaces when the four corners are expanded or contracted; The outer blocking portion (300) comprises a corner plate (330), a horizontal blocking block (340) inserted on a vertical surface on one side of the corner plate (330), and a vertical blocking block (350) inserted on a horizontal surface on the other side of the corner plate (330); The angle plates (330) on both sides, the horizontal containment blocks (340), the vertical containment blocks (350) and the lining (270) form a U-shaped concrete shell cavity, and a pouring port is provided between the angle plates (330) and the vertical containment blocks (350) on both sides; A longitudinal multi-layer equipment slot is provided on the base (210), and the equipment slot includes four first equipment slots (211) extending toward the four corners of the base (210) and a second equipment slot (212) extending toward the middle and lower part; a first telescopic member (230) is provided in the first equipment slot (211); a plurality of first telescopic members (230) arranged in the same longitudinal direction have their movable ends connected to a first support rod (240); a second telescopic member (280) is provided in the second equipment slot (212); a plurality of second telescopic members (280) have their movable ends connected to a third support rod (260); and an inner lining (270) is sleeved on the four first support rods (240) and the third support rod (260); A plurality of second support rods (250) in horizontal and vertical directions are disposed on the two first support rods (240) at the top, and the second support rods (250) in horizontal directions connected to the two first support rods (240) are arranged in a staggered manner; The fixing seat (100) comprises two lateral bases (110) and two slide rails (120), the two ends of the two lateral bases (110) are connected by the two slide rails (120), and the two ends of the base (210) are installed in the middle of the two slide rails (120) by providing supporting legs (220).

2. A thin-walled high-strength gray cast iron cylinder casting process according to claim 1, characterized in that: The outer retaining part (300) further comprises a third telescopic member (310) and a U-shaped frame (320), wherein the third telescopic member (310) is arranged on the lateral base (110), and the output end is connected to the frame (320), and the bottoms of the two longitudinal ends of the frame (320) are slidably arranged on two slide rails (120), and the angle plate (330) is rotatably mounted on the frame (320), and a U-shaped horizontal slot (331) is penetrated through the vertical surface of the angle plate (330), and the horizontal containment block (340) is inserted into the horizontal slot (331), and a threaded rod (334) is further provided in the middle of the outer side of the vertical surface of the angle plate (330), and a limit block (341) is further provided on the horizontal containment block (340), and the threaded rod (334) penetrates the limit block (341) and is mounted on the nut.

3. A thin-walled high-strength gray cast iron cylinder casting process according to claim 2, characterized in that: A protrusion (342) that matches the corner of the liner (270) is provided at the inner top end of the horizontal containment block (340).

4. A thin-walled high-strength gray cast iron cylinder casting process according to claim 3, characterized in that: Vertical slots (332) are symmetrically provided at both ends of the horizontal plane of the angle plate (330). The vertical containment block (350) is U-shaped, and both ends are respectively inserted into the front and rear vertical slots (332). A support bolt (351) is threadedly installed in the middle of the vertical containment block (350).

5. A thin-walled high-strength gray cast iron cylinder casting process according to claim 4, characterized in that: The corner plates (330) on both sides are provided with inner pouring openings (333) that are combined and matched in the middle, and the vertical containment blocks (350) on both sides are provided with outer pouring openings (352) that are combined and matched in the middle of the top plates, and the inner pouring openings (333) and the outer pouring openings (352) are vertically overlapped.

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