Engine water outlet pipe and anti-tilting pouring equipment thereof

Abstract

The invention discloses an engine water outlet pipe and anti-tilting pouring equipment thereof, relates to the technical field of engine water outlet pipes, and aims to solve the technical problems that the engine water outlet pipe is easy to deform and crack in a high-temperature environment, and shrinkage cavities are easy to generate when the existing pouring equipment is used for pouring the engine water outlet pipe with more structural layers. Comprising a water outlet pipe body, a plurality of reinforcing ribs and spiral fins are arranged on the outer wall of the circumference of the water outlet pipe body, the anti-tilting type pouring equipment comprises a base support, a tilting assembly is arranged on the top face of the base support, a multi-section type mold assembly is arranged in the tilting assembly, and a pouring assembly is arranged above the tilting assembly. The mold has the advantages that the deformation resistance of the pipe wall of the water outlet pipe of the engine is enhanced, the tilting assembly is used for driving the multi-section mold assembly and the pouring assembly to tilt, molten metal gradually flows upwards from the bottom of the mold cavity, and internal air holes can be effectively reduced.

Description

Technical Field

[0001] The invention relates to the technical field of engine water outlet pipes, and more specifically to an engine water outlet pipe and a reverse tilting pouring device thereof. Background Art

[0002] The engine water outlet pipe is an important part of the engine cooling system. Its main function is to guide the engine coolant out of the engine block or cylinder head and transport it to the radiator and other cooling components for heat dissipation, so as to ensure that the engine runs within the normal operating temperature range and prevent the engine from overheating and damage.

[0003] The engine cooling system is a relatively closed system. Under normal circumstances, the coolant circulates in the system and a certain pressure is maintained in the system. The engine generates a lot of heat during operation, and the coolant is responsible for absorbing and taking away this heat. When the coolant temperature rises, the volume will expand. The internally expanded coolant will exert a greater pressure on the wall of the engine water outlet pipe, which can easily cause the water outlet pipe to expand. In addition, the water outlet pipe is also prone to expansion after being heated. When the engine stops working, the coolant temperature drops and the water pipe shrinks again. This repeated thermal expansion and contraction will generate thermal stress inside the metal water outlet pipe. If the thermal stress exceeds the yield strength of the metal material, it will cause the water pipe to deform and rupture, and eventually cause coolant leakage. When conventional casting equipment is used to cast and produce engine water outlet pipes, the casting equipment usually allows the molten metal to flow from a high place into the mold cavity by its own gravity until it fills the entire cavity and gradually fills the shape of the entire water outlet pipe. Although this method is simple and convenient to operate, when casting an engine water outlet pipe with many structural layers, the flow of the molten metal from top to bottom may not be smooth, and it is easy to cause poor exhaust, air is trapped in the molten metal to form pores, and during the cooling and solidification process, due to the volume shrinkage of the molten metal, if there are no sufficient shrinkage compensation measures, shrinkage cavities will be generated, resulting in poor quality of the produced water outlet pipe. In view of this, we propose an engine water outlet pipe and its reverse tilting casting equipment. Summary of the invention

[0004] The purpose of the present invention is to provide an engine water outlet pipe and its reverse tilting casting equipment to solve the technical problems that the engine water outlet pipe is prone to deformation and rupture in a high temperature environment, which eventually causes coolant leakage, and that the existing casting equipment is prone to shrinkage holes when casting the engine water outlet pipe with more structural layers.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: an engine water outlet pipe, comprising a water outlet pipe main body, a plurality of reinforcing ribs are arranged in a circular shape with equal intervals on the circumferential outer wall of the water outlet pipe main body, and a spiral fin is also arranged on the circumferential outer wall of the water outlet pipe main body; wherein, a plurality of the reinforcing ribs penetrate the side wall of the spiral fin; a reinforcing block is arranged at the junction of the reinforcing ribs and the spiral fins; the spiral fins are used to form a protective effect on the water outlet pipe main body on the one hand, and cooperate with the reinforcing ribs to strengthen the compressive strength of the water outlet pipe main body, and on the other hand, are used to expand the area of ​​the outer wall of the water outlet pipe main body in contact with the air, accelerate the heat dissipation speed of the water outlet pipe main body, and reduce the thermal expansion strength of the water outlet pipe main body, that is, reduce the compressive strength.

[0006] Preferably, a sealing plate is connected to the end of the reinforcing rib, and the sealing plate is sleeved on the circumferential outer wall of the water outlet pipe body. The cross section of the reinforcing rib is a T-shaped structure, and the spiral fin is a spiral plate structure.

[0007] The present invention also provides an anti-tilting casting equipment for manufacturing the above-mentioned engine water outlet pipe, comprising a base bracket, a tilting assembly arranged on the top surface of the base bracket, a multi-section mold assembly arranged inside the tilting assembly, and a casting assembly arranged above the tilting assembly; wherein the multi-section mold assembly comprises four casting molds and mold columns, the four casting molds have a combined state and a separated state, in the combined state, the inner cavities of the four casting molds are combined to form a mold cavity, and the mold cavity is used to surround the mold column; in the separated state, the four casting molds are away from each other to expose the mold column; the tilting assembly has a horizontal state and a vertical state; in the horizontal state, it is used for the multi-section mold assembly to perform demolding operations; in the vertical state, it is used for the casting assembly to pour molten metal into the mold cavity so that the molten metal flows from the lower end to the higher end of the mold cavity.

[0008] Furthermore, a support plate and a support block are connected to the top surface of the base bracket, the support plate is used to support the tilting assembly in a horizontal state, and the support block is used to support the tilting assembly in a vertical state; a fixed seat is connected to the lower side wall of the base bracket, and a plurality of hydraulic cylinders are rotatably connected to the top of the fixed seat via a rotating shaft; two fixed side plates are also connected to the top surface of the base bracket, and the side walls of the two fixed side plates are connected by a fixing rod.

[0009] Furthermore, the tilting assembly includes a base plate movably connected to the output end of the hydraulic cylinder, a plurality of rotating blocks are connected to the bottom surface of the base plate, the rotating blocks are sleeved on the circumferential outer wall of the fixed rod, and the base plate is rotatably matched with the fixed rod through the rotating blocks.

[0010] Furthermore, a fixed block is connected to the top surface of the bottom plate, a rotation groove is provided on the side wall of the fixed block, and a first rack, a second rack and a third rack are integrally formed on the top surface of the fixed block; wherein the circumferential inner walls of the first rack, the second rack and the third rack are provided with a plurality of grooves matching the shape of the outer wall of the casting mold; the circumferential outer wall of the second rack is provided with two symmetrically distributed slide grooves, which are connected to the rotation groove.

[0011] Furthermore, the multi-section mold assembly includes a motor and a wheel frame arranged on the top surface of the bottom plate, the side wall of the wheel frame is rotatably connected to a rotating column, the circumferential side wall of the rotating column is connected to a plurality of gears, and the output end of the motor is transmission-connected to the gear through the rotating column; the multi-section mold assembly also includes a ring plate movably arranged on the slide groove, and the ring plate is rotatably matched with the second ring frame through the slide groove; wherein the circumferential outer wall of the ring plate is provided with a plurality of tooth openings, and the ring plate is meshedly connected with the gear through the tooth openings; the side wall of the ring plate is provided with a plurality of arc grooves, and there are four arc grooves, and the four arc grooves are distributed in a circular array.

[0012] Furthermore, the mold column is a U-shaped columnar structure, one end of the mold column is connected to the side wall of the fixed block, and the other end is arranged at the midpoint of the inner cavity of the first rack; the casting mold is arranged between the groove and the mold column, and the side wall of the casting mold is connected with a plurality of sliding columns, one of which penetrates the side wall of the first rack and is in a sliding fit, another of which penetrates the side wall of the second rack and is in a sliding fit, another of which penetrates the side wall of the third rack and is in a sliding fit, and the top ends of the plurality of sliding columns are connected by a connecting rod, and the connecting rod penetrates the arc groove and is movably fitted with the arc groove; two of the side walls of the casting molds are provided with casting grooves, the casting grooves are connected to the mold cavity, and the casting grooves are used to pour the molten metal The water is guided into the mold cavity; wherein, the inner wall of the casting mold is provided with a strip groove matching the shape of the reinforcing rib, a sheet groove matching the shape of the spiral fin, a block groove matching the shape of the reinforcing block, an arc groove matching the shape of the sealing plate and an arc surface matching the shape of the outlet pipe body; the inner wall at one end of the casting mold is integrally formed with an arc convex surface, and the arc convex surface is used to cooperate with the mold column to form a closed structure at one end of the mold cavity; the inner wall at the other end of the casting mold is integrally formed with an arc concave surface, and the arc concave surface is used to cooperate with the mold column to form an air outlet channel at the other end of the mold cavity; the inner cavity shape formed by the plurality of casting molds in a combined state in cooperation with the mold column is the shape of an engine water outlet pipe.

[0013] Furthermore, the casting assembly includes a supporting frame connected to the top surface of the base plate, a casting ladle is arranged on the top of the supporting frame, a guide tube is connected to the output end of the casting ladle, a plurality of fixed ears 1 are connected to the side wall of the guide tube, a plug hole is opened on one side wall of the fixed ear, and the top surface of the guide tube is a hollow structure; a cover plate is also arranged on the top surface of the guide tube, the cover plate is used to form a closed state for the hollow structure on the top surface of the guide tube, a plurality of fixed ears 2 corresponding to the position of the fixed ear 1 are arranged on the side wall of the cover plate, a plug hole identical to that on one side wall of the fixed ear is opened on the side wall of the fixed ear, and the fixed ear 1 and the fixed ear 2 are connected by a plug column; the output end of the guide tube passes through the side wall of the first ring frame and extends into the casting trough.

[0014] A method for using a reverse tilting pouring device for an engine water outlet pipe comprises the following steps: S1, merging operation, through the motor working, driving the gear to rotate, the gear drives the ring plate to rotate on the slide groove of the second ring frame, during the rotation of the ring plate, the multiple arc grooves on its side wall drive the corresponding connecting rods to move, so that the multiple connecting rods are in a state of moving closer to each other, and the multiple connecting rods drive the four casting molds to move closer to each other through the multiple sliding columns until a merged state is formed, at which time the four casting molds surround the mold column; S2, pouring operation, first inject molten metal into the ladle, then drive the bottom plate to tilt around the fixed rod through the hydraulic cylinder, until the side wall of the fixed block contacts the top surface of the support block, and the support block forms a supporting effect on the bottom plate, so that the tilting assembly is in a vertical state. During the tilting process, the molten metal in the ladle is affected by gravity and flows into the guide pipe from the output end of the ladle, and flows into the casting trough through the output end of the guide pipe, and flows into the bottom of the mold cavity through the casting trough, so that the molten metal gradually flows upward from the bottom of the mold cavity. When the molten metal flows from bottom to top, the gas in the mold cavity will naturally escape upward from the gas outlet channel due to its low density, which can effectively reduce the generation of internal pores. The molten metal gradually fills the entire mold cavity from bottom to top to form the shape of the engine water outlet pipe, and waits for cooling and molding; S3, demoulding operation, after the molten metal solidifies and takes shape, the hydraulic cylinder works to drive the tilting assembly to tilt and form a horizontal state. At this time, the support plate supports the bottom plate, and then the motor rotates in the opposite direction to make the four casting molds move away from each other to form a separated state, exposing the mold column. The engine water outlet pipe formed by the solidified molten metal is set on the mold column and can be taken out.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention designs six reinforcing ribs and spiral fins. The reinforcing ribs are distributed on the circumferential outer wall of the water outlet pipe body, and the spiral fins are distributed on the circumferential outer wall of the water outlet pipe body in a winding shape, forming a protective effect on the water outlet pipe body, which can effectively enhance the anti-deformation ability of the pipe wall of the water outlet pipe body. On the other hand, the spiral fins with a spiral plate structure can expand the area of ​​the outer wall of the water outlet pipe body in contact with the air, accelerate the heat dissipation speed of the water outlet pipe body, reduce the strength of the heat expansion of the water outlet pipe body, that is, reduce the compressive strength of the pipe wall of the water outlet pipe body, and further reduce the risk of compression deformation or even rupture of the water outlet pipe body.

[0016] 2. The present invention designs a tilting component and utilizes the tilting component to tilt, thereby driving the multi-section mold component and the pouring component to tilt synchronously and reach a vertical state. During the tilting process, the pouring component causes the molten metal to gradually flow upward from the bottom of the mold cavity. When the molten metal flows from bottom to top, the gas in the mold cavity will naturally escape upward from the air outlet channel due to its low density, which can effectively reduce the generation of internal pores. The molten metal gradually fills the entire mold cavity from bottom to top to form the shape of an engine water outlet pipe. The molten metal flows from bottom to top in a relatively gentle and smooth manner, which solves the problem of turbulence and splashing of the molten metal in the top-down pouring method, and poor exhaust, and air is trapped in the molten metal to form pores.

[0017] 3. The present invention designs a multi-section mold assembly so that the mold cavity is formed by four casting molds in a combined state, and cooperates with the mold column to further form the shape of the engine water outlet pipe. Since the spiral fin has a special shape, which is a spiral plate structure, the four casting molds are designed so that the length of the sheet-shaped groove of each casting mold is shorter and the arc degree is lower. After the molten metal is cast in the mold cavity, it only needs to be separated by four casting molds to make the spiral fin easily detached from the sheet-shaped groove, which solves the problem that the conventional upper mold and lower mold easily cause the spiral fin to be stuck in the sheet-shaped groove in the mold cavity, making it difficult to separate.

[0018] 4. The present invention ensures that the movement trajectories of the four casting molds are limited by the corresponding sliding movement trajectories of the multiple sliding columns and the multiple frames by respectively passing through the first frame side wall, the second frame side wall and the third frame side wall and slidingly fitting them, thereby further ensuring the stability and accuracy of the merging or separation movement of the four casting molds.

[0019] 5. In the present invention, when the tilting assembly is tilted, driving the multi-section mold assembly and the pouring assembly to tilt synchronously to form a vertical state, the ladle is located on the upper side of the third ring frame, and the ladle is connected to the mold cavity through a guide tube. By utilizing the communicating vessel principle, the molten metal in the ladle will enter the bottom of the mold cavity through the guide tube and flow to the upper part of the mold cavity, thereby ensuring that the molten metal is poured into the mold cavity from bottom to top. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the engine water outlet pipe of the present invention.

[0021] Figure 2 It is a schematic diagram of the side wall structure of the engine water outlet pipe of the present invention.

[0022] Figure 3 It is a schematic diagram of the cutaway structure of the engine water outlet pipe of the present invention.

[0023] Figure 4 It is a schematic diagram of the overall structure of the reverse tilting pouring equipment of the present invention.

[0024] Figure 5 It is a schematic structural diagram of a use state of the reverse tilting pouring equipment of the present invention.

[0025] Figure 6 It is a schematic diagram of the structure of the base support and the tilting assembly of the present invention.

[0026] Figure 7 It is a schematic structural diagram of the first coil frame, the second coil frame and the third coil frame of the present invention.

[0027] Figure 8 It is a schematic diagram of the structure of the multi-section mold assembly of the present invention.

[0028] Fig. 9 It is a schematic diagram of the ring plate structure of the present invention.

[0029] Fig.10 It is a schematic structural diagram of the four casting molds of the present invention in a separated state.

[0030] Fig.11 It is a structural schematic diagram of the four casting molds of the present invention in a combined state.

[0031] Fig.12 It is a schematic diagram of the internal structure of four casting molds of the present invention in a combined state.

[0032] Fig.13 It is a schematic diagram of the disassembled structure of the casting assembly of the present invention.

[0033] Description of the numbers in the figure: 1. Water outlet pipe body; 2. Reinforcement ribs; 3. Spiral fins; 4. Reinforcement block; 5. Sealing plate; 6. Base bracket; 7. Tilt assembly; 8. Multi-section mold assembly; 9. Casting assembly; 601, support plate; 602, support block; 603, fixed seat; 604, hydraulic cylinder; 605, fixed side plate; 606, fixed rod; 701, bottom plate; 702, rotating block; 703, fixed block; 704, rotating groove; 705, first ring frame; 706, second ring frame; 707, third ring frame; 708, groove; 709, slide groove; 801, casting mold; 8011, strip groove; 8012, sheet groove; 8013, block groove; 8014, arc groove; 8015, arc surface; 8016, arc convex surface; 8017, arc concave surface; 802, mold column; 803, mold cavity; 804, motor; 805, wheel frame; 806, rotating column; 807, gear; 808, ring plate; 809, tooth mouth; 810, arc groove; 811, sliding column; 812, connecting rod; 813, casting trough; 901, support frame; 902, casting ladle; 903, flow guide pipe; 904, fixing ear 1; 905, cover plate; 906, fixing ear 2; 907, plug column. DETAILED DESCRIPTION

[0034] Example 1: Figures 1 to 3 As shown, the present invention relates to an engine water outlet pipe, comprising a water outlet pipe body 1, the outer circumferential wall of which is arranged with six reinforcing ribs 2 in a circular shape with equal intervals, and the outer circumferential wall of which is also arranged with spiral fins 3.

[0035] In the embodiment of the present invention, six reinforcing ribs 2 pass through the side wall of the spiral fin 3, the cross section of the reinforcing rib 2 is a T-shaped structure, the spiral fin 3 is a spiral plate structure, a reinforcing block 4 is arranged at the intersection of the reinforcing rib 2 and the spiral fin 3, the reinforcing block 4 is a semicircular plate structure, the reinforcing block 4 is used to strengthen the firmness of the intersection of the reinforcing rib 2 and the spiral fin 3, the end of the reinforcing rib 2 is connected with a sealing plate 5, the sealing plate 5 is sleeved on the circumferential outer wall of the water outlet pipe body 1, the sealing plate 5 is used to form an enclosure at the end of the reinforcing rib 2 to prevent the end of the reinforcing rib 2 from being exposed to the outside and easily scratching other parts, the spiral fin 3 is used to form a protective effect on the water outlet pipe body 1 on the one hand, cooperate with the reinforcing rib 2 to strengthen the compressive strength of the water outlet pipe body 1, and on the other hand, it is used to expand the area of ​​the outer wall of the water outlet pipe body 1 in contact with the air, accelerate the heat dissipation speed of the water outlet pipe body 1, and reduce the thermal expansion of the water outlet pipe body 1 The present invention designs six reinforcing ribs 2 and spiral fins 3. The reinforcing ribs 2 are distributed on the circumferential outer wall of the water outlet pipe body 1. The spiral fins 3 are distributed on the circumferential outer wall of the water outlet pipe body 1 in a winding shape, so as to form a protective effect on the water outlet pipe body 1, thereby ensuring that the overall structure of the water outlet pipe body 1 is light and can effectively enhance the anti-deformation ability of the pipe wall of the water outlet pipe body 1. On the other hand, the spiral fins 3 with a spiral plate structure can expand the area of ​​the outer wall of the water outlet pipe body 1 in contact with the air, accelerate the heat dissipation speed of the water outlet pipe body 1, and reduce the strength of the heat expansion of the water outlet pipe body 1, that is, reduce the compressive strength of the pipe wall of the water outlet pipe body 1, and further reduce the risk of the water outlet pipe body 1 being deformed or even ruptured under compression. The overall structure of the water outlet pipe body 1 is light, and the method of thickening the pipe wall is avoided to ensure the compressive ability of the water outlet pipe, which easily leads to the problem of bulky overall structure and low heat dissipation efficiency.

[0036] Embodiment 2: As another embodiment of the present invention, Figures 4 to 13 As shown, this embodiment discloses a reverse-tilting casting device for manufacturing an engine water outlet pipe, which includes a base bracket 6, a tilting component 7 is arranged on the top surface of the base bracket 6, a multi-section mold component 8 is arranged inside the tilting component 7, and a casting component 9 is arranged above the tilting component 7.

[0037] In an embodiment of the present invention, the multi-section mold assembly 8 includes four casting molds 801 and a mold column 802. The four casting molds 801 have a combined state and a separated state. In the combined state, the inner cavities of the four casting molds 801 are combined to form a mold cavity 803, and the mold cavity 803 is used to surround the mold column 802; in the separated state, the four casting molds 801 are away from each other to expose the mold column 802; the inner wall of the casting mold 801 is provided with a strip that matches the shape of the reinforcing rib 2. The casting mold 801 has a convex arc surface 8016 integrally formed on the inner side wall at one end thereof, and the convex arc surface 8016 is used to cooperate with the mold column 802 to form a closed structure on one end of the mold cavity 803; the casting mold 801 has a convex arc surface 8016 integrally formed on the inner side wall at the other end thereof. The arc concave surface 8017 is used to cooperate with the mold column 802 to form an air outlet channel at the other end of the mold cavity 803; the inner cavity shape formed by the multiple casting molds 801 in the combined state and the mold column 802 is the shape of the engine water outlet pipe; the present invention designs a multi-section mold assembly 8, so that the mold cavity 803 is formed by four casting molds 801 in the combined state, and cooperates with the mold column 802 to further form the shape of the engine water outlet pipe. Due to the special shape of the spiral fin 3, it is a spiral The spiral plate-like structure is designed with four casting molds 801, so that the sheet-shaped groove 8012 of each casting mold 801 is shorter and has a lower arc degree. After the molten metal is cast in the mold cavity 803, the spiral fin 3 can be easily separated from the sheet-shaped groove 8012 by separating the four casting molds 801, which solves the problem that the conventional upper mold and lower mold easily cause the spiral fin 3 to be stuck in the sheet-shaped groove 8012 in the mold cavity 803, making it difficult to separate.

[0038] In an embodiment of the present invention, the tilting assembly 7 has a horizontal state and a vertical state; in the horizontal state, it is used for demoulding operations of the multi-stage mold assembly 8; in the vertical state, it is used for the pouring assembly 9 to pour molten metal into the mold cavity 803, so that the molten metal flows from the lower end to the higher end of the mold cavity 803; the top surface of the base bracket 6 is connected to a support plate 601 and a support block 602, the support plate 601 is used to support the tilting assembly 7 in the horizontal state, and the support block 602 is used to support the tilting assembly 7 in the vertical state; the lower side wall of the base bracket 6 is connected to a fixed seat 603, and the top of the fixed seat 603 is rotatably connected to two hydraulic cylinders 604 through a rotating shaft; the top surface of the base bracket 6 is also connected to two fixed side plates 605, and the side walls of the two fixed side plates 605 are connected by a fixed rod 606; the tilting assembly 7 includes a bottom plate 701 movably connected to the output end of the hydraulic cylinder 604, and the bottom surface of the bottom plate 701 is connected to multiple The rotating block 702 is sleeved on the outer wall of the circumference of the fixed rod 606, and the bottom plate 701 is rotatably matched with the fixed rod 606 through the rotating block 702. The present invention designs a tilting component 7, and uses the tilting component 7 to tilt, thereby driving the multi-stage mold component 8 and the pouring component 9 to tilt synchronously and reach a vertical state. During the tilting process, the pouring component 9 causes the molten metal to gradually flow upward from the bottom of the mold cavity 803. When the molten metal flows from bottom to top, the gas in the mold cavity 803 will naturally escape upward from the air outlet channel due to its low density, which can effectively reduce the generation of internal pores. The molten metal gradually fills the entire mold cavity 803 from bottom to top to form the shape of an engine water outlet pipe. The molten metal flows from bottom to top in a relatively gentle and smooth manner, which solves the problem that the molten metal is prone to turbulence and splashing when pouring from top to bottom, and is prone to poor exhaust, and air is trapped in the molten metal to form pores.

[0039] In the embodiment of the present invention, the top surface of the bottom plate 701 is connected to a fixed block 703, the side wall of the fixed block 703 is provided with a rotation groove 704, and the top surface of the fixed block 703 is integrally formed with a first frame 705, a second frame 706 and a third frame 707; wherein the circumferential inner walls of the first frame 705, the second frame 706 and the third frame 707 are provided with a plurality of grooves 708 that match the shape of the outer wall of the casting mold 801; the circumferential outer wall of the second frame 706 is provided with two symmetrically distributed slide grooves 709, and the slide grooves 709 are connected to the rotation groove 704; Furthermore, the multi-stage mold assembly 8 includes a motor 804 and a wheel frame 805 arranged on the top surface of the bottom plate 701, the side wall of the wheel frame 805 is rotatably connected to a rotating column 806, the circumferential side wall of the rotating column 806 is connected to two gears 807, and the output end of the motor 804 is connected to the gear 807 through the rotating column 806; the multi-stage mold assembly 8 also includes a ring plate 808 movably arranged on the slide groove 709, the circumferential inner wall of the ring plate 808 is sleeved on the slide groove 709, and the ring plate 808 is connected to the slide groove 709. The plate 808 is rotatably matched with the second ring frame 706 through the slide groove 709, and the bottom of the ring plate 808 is arranged in the rotating groove 704, and the rotating groove 704 is used to provide a space for the ring plate 808 to move; wherein, the outer wall of the circumference of the ring plate 808 is provided with a plurality of tooth openings 809, and the ring plate 808 is meshed and connected with the gear 807 through the tooth openings 809; the side wall of the ring plate 808 is provided with a plurality of arc grooves 810, and there are four arc grooves 810, and the four arc grooves 810 are distributed in a ring array; It is worth noting that the mold column 802 is a U-shaped columnar structure, one end of the mold column 802 is connected to the side wall of the fixed block 703, and the other end is arranged at the midpoint of the inner cavity of the first frame 705; the casting mold 801 is arranged between the groove 708 and the mold column 802, and the side wall of the casting mold 801 is connected to a plurality of sliding columns 811, one of which penetrates the side wall of the first frame 705 and is in a sliding fit, and the other sliding column 811 penetrates the side wall of the second frame 706 and is in a sliding fit. The third ring frame 707 is slidably matched, wherein another sliding column 811 penetrates the side wall of the third ring frame 707 and is slidably matched, and the tops of the multiple sliding columns 811 are connected by connecting rods 812, and the connecting rods 812 penetrate the arc groove 810 and movably match the arc groove 810. When the ring plate 808 rotates, the arc groove 810 on its side wall will drive the connecting rod 812 to move along the direction of the sliding column 811; the side walls of the two casting molds 801 are provided with casting grooves 813, and the casting grooves 813 are connected to the mold cavity 803. The four casting molds 801 are connected to each other, and the casting groove 813 is used to guide the metal liquid into the mold cavity 803; the present invention works through the motor 804 to drive the gear 807 to rotate, and the gear 807 drives the ring plate 808 to rotate on the slide groove 709 of the second ring frame 706. During the rotation of the ring plate 808, the four arc grooves 810 on its side wall drive the corresponding connecting rods 812 to move, so that the multiple connecting rods 812 are in a state of moving closer to each other, and the multiple connecting rods 812 drive the four casting molds 801 to move closer to each other through the multiple sliding columns 811 until a merged state is formed. By respectively penetrating the side walls of the first ring frame 705, the side walls of the second ring frame 706 and the side walls of the third ring frame 707 and slidingly cooperating with each other, it can be ensured that the movement trajectory of the four casting molds 801 is limited to the trajectory of the sliding movement of the corresponding multiple sliding columns 811 and the multiple ring frames, and further ensure the stability and accuracy of the merging or separation movement of the four casting molds 801.

[0040] In the embodiment of the present invention, the pouring assembly 9 includes a carrier frame 901 connected to the top surface of the bottom plate 701, a ladle 902 is arranged on the top of the carrier frame 901, and the ladle 902 is located on the upper side of the third frame 707. When the tilting assembly 7 is tilted, the multi-stage mold assembly 8 and the pouring assembly 9 are synchronously tilted to form a vertical state, and the ladle 902 is located on the upper side of the third frame 707. The output end of the ladle 902 is connected to a guide pipe 903, and the output end of the guide pipe 903 passes through the side wall of the first frame 705 and extends into the pouring trough 813. The flow pipe 903 is used to guide the molten metal in the ladle 902 into the casting trough 813. The ladle 902 is connected to the mold cavity 803 through the flow pipe 903. Using the communicating vessel principle, the molten metal in the ladle 902 will flow from the bottom of the mold cavity 803 to the upper part through the flow pipe 903; the side wall of the flow pipe 903 is connected to a plurality of fixing ears 904, and the side wall of the fixing ears 904 is provided with a plug hole, and the top surface of the flow pipe 903 is a hollow structure; the top surface of the flow pipe 903 is also arranged with a cover plate 905, and the cover plate 905 is used to fix the top surface of the flow pipe 903. The hollow structure forms a closed state, and the side wall of the cover plate 905 is arranged with a plurality of second fixing ears 906 corresponding to the position of the first fixing ears 904. The side wall of the second fixing ears 906 is provided with the same plug hole as the side wall of the first fixing ears 904. The first fixing ears 904 and the second fixing ears 906 are connected by plug posts 907. In the present invention, the tilting assembly 7 is tilted, driving the multi-stage mold assembly 8 and the pouring assembly 9 to tilt synchronously, and after reaching the vertical state, the molten metal in the ladle 902 is affected by gravity and flows into the guide pipe 90 from the output end of the ladle 902. 3, and flows into the pouring trough 813 through the output end of the guide tube 903, and flows into the bottom of the mold cavity 803 through the pouring trough 813, and pours the mold cavity 803 from bottom to top. After the pouring is completed, it is only necessary to pull out the plug post 907 from the plug holes of the fixing ear 1 904 and the fixing ear 2 906, so that the cover plate 905 is removed from the guide tube 903, and the hollow structure on the top surface of the guide tube 903 is exposed, and the solidified metal residues remaining in the guide tube 903 are taken out from the hollow structure, and the cleaning operation of the guide tube 903 is completed.

[0041] Embodiment 3: The present invention also provides another embodiment, a method for using a reverse tilting pouring device for an engine water outlet pipe, comprising the following steps: S1, merging operation, the motor 804 works to drive the gear 807 to rotate, and the gear 807 drives the ring plate 808 to rotate on the slide groove 709 of the second ring frame 706. During the rotation of the ring plate 808, the multiple arc grooves 810 on its side wall drive the corresponding connecting rods 812 to move, so that the multiple connecting rods 812 are in a state of moving closer to each other. The multiple connecting rods 812 drive the four casting molds 801 to move closer to each other through the multiple sliding columns 811 until a merged state is formed. At this time, the four casting molds 801 surround the mold column 802; S2, pouring operation, first injecting molten metal into the ladle 902, and then driving the bottom plate 701 to tilt around the fixed rod 606 through the hydraulic cylinder 604, until the side wall of the fixed block 703 contacts the top surface of the support block 602, and the support block 602 forms a supporting effect on the bottom plate 701, so that the tilting assembly 7 is in a vertical state. During the tilting process, the molten metal in the ladle 902 is affected by gravity and flows into the guide tube 903 from the output end of the ladle 902, and flows into the pouring trough 813 through the output end of the guide tube 903, and flows into the bottom of the mold cavity 803 through the pouring trough 813, so that the molten metal gradually flows upward from the bottom of the mold cavity 803. When the molten metal flows from bottom to top, the gas in the mold cavity 803 will naturally escape upward from the gas outlet channel due to its low density, which can effectively reduce the generation of internal pores. The molten metal gradually fills the entire mold cavity 803 from bottom to top to form the shape of the engine water outlet pipe, and waits for cooling and molding; S3, demoulding operation, after the molten metal solidifies and takes shape, the hydraulic cylinder 604 works to drive the tilting assembly 7 to tilt and form a horizontal state. At this time, the support plate 601 supports the bottom plate 701, and then the motor 804 rotates in the opposite direction to make the four casting molds 801 move away from each other to form a separated state, exposing the mold column 802. The engine water outlet pipe formed by the solidified molten metal is set on the mold column 802 and can be taken out.

[0042] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. An engine water outlet pipe, characterized in that: It comprises a water outlet pipe body (1), the outer circumferential wall of the water outlet pipe body (1) is provided with a plurality of reinforcing ribs (2) arranged in a circular shape at equal intervals, and the outer circumferential wall of the water outlet pipe body (1) is also provided with spiral fins (3); Wherein, a plurality of the reinforcing ribs (2) penetrate the side wall of the spiral fin (3); A reinforcement block (4) is arranged at the junction of the reinforcement rib (2) and the spiral fin (3); The spiral fins (3) are used, on the one hand, to form a protective effect on the water outlet pipe body (1) and cooperate with the reinforcing ribs (2) to strengthen the compressive strength of the water outlet pipe body (1); on the other hand, they are used to expand the area of ​​contact between the outer wall of the water outlet pipe body (1) and the air, accelerate the heat dissipation speed of the water outlet pipe body (1), and reduce the thermal expansion strength of the water outlet pipe body (1), that is, reduce the compressive strength.

2. An engine water outlet pipe according to claim 1, characterized in that: The end of the reinforcing rib (2) is connected to a sealing plate (5), and the sealing plate (5) is sleeved on the circumferential outer wall of the outlet pipe body (1). The cross section of the reinforcing rib (2) is a T-shaped structure, and the spiral fin (3) is a spiral plate-shaped structure.

3. A reverse tilting casting equipment for manufacturing the engine water outlet pipe according to claim 2, characterized in that: It comprises a base support (6), a tilting assembly (7) being arranged on the top surface of the base support (6), a multi-section mold assembly (8) being arranged inside the tilting assembly (7), and a casting assembly (9) being arranged above the tilting assembly (7); The multi-section mold assembly (8) comprises four casting molds (801) and a mold column (802), and the four casting molds (801) have a combined state and a separated state. In the combined state, the inner cavities of the four casting molds (801) are combined to form a mold cavity (803), and the mold cavity (803) is used to surround the mold column (802); in the separated state, the four casting molds (801) are separated from each other to expose the mold column (802); The tilting assembly (7) has a horizontal state and a vertical state; in the horizontal state, it is used for the multi-section mold assembly (8) to perform a demoulding operation; in the vertical state, it is used for the pouring assembly (9) to pour molten metal into the mold cavity (803), so that the molten metal flows from the lower end to the higher end of the mold cavity (803).

4. The reverse tilting pouring equipment according to claim 3, characterized in that: A support plate (601) and a support block (602) are connected to the top surface of the base support (6), wherein the support plate (601) is used to support the tilting assembly (7) in a horizontal state, and the support block (602) is used to support the tilting assembly (7) in a vertical state; The lower side wall of the base support (6) is connected to a fixing seat (603), and the top of the fixing seat (603) is rotatably connected to a plurality of hydraulic cylinders (604) via a rotating shaft; The top surface of the base support (6) is also connected to two fixed side panels (605), and the side walls of the two fixed side panels (605) are connected via a fixed rod (606).

5. The reverse tilting pouring equipment according to claim 4, characterized in that: The tilting assembly (7) comprises a base plate (701) movably connected to the output end of the hydraulic cylinder (604); a plurality of rotating blocks (702) are connected to the bottom surface of the base plate (701); the rotating blocks (702) are sleeved on the circumferential outer wall of the fixed rod (606); and the base plate (701) is rotatably matched with the fixed rod (606) through the rotating blocks (702).

6. The reverse tilting pouring equipment according to claim 5, characterized in that: The top surface of the bottom plate (701) is connected to a fixed block (703), a side wall of the fixed block (703) is provided with a rotation groove (704), and the top surface of the fixed block (703) is integrally formed with a first coil frame (705), a second coil frame (706) and a third coil frame (707); The inner circumferential walls of the first frame (705), the second frame (706) and the third frame (707) are all provided with a plurality of grooves (708) matching the shape of the outer wall of the casting mold (801); The circumferential outer wall of the second ring frame (706) is provided with two symmetrically distributed sliding grooves (709), and the sliding grooves (709) are connected to the rotating groove (704).

7. The reverse tilting pouring equipment according to claim 6, characterized in that: The multi-section mold assembly (8) comprises a motor (804) and a wheel frame (805) arranged on the top surface of the bottom plate (701); the side wall of the wheel frame (805) is rotatably connected to a rotating column (806); the circumferential side wall of the rotating column (806) is connected to a plurality of gears (807); and the output end of the motor (804) is transmission-connected to the gears (807) via the rotating column (806); The multi-section mold assembly (8) further comprises a ring plate (808) movably arranged on the slide groove (709), wherein the ring plate (808) is rotatably matched with the second ring frame (706) through the slide groove (709); Wherein, a plurality of tooth openings (809) are provided on the circumferential outer wall of the ring plate (808), and the ring plate (808) is meshingly connected with the gear (807) via the tooth openings (809); The side wall of the ring plate (808) is provided with a plurality of arc-shaped grooves (810), wherein there are four arc-shaped grooves (810), and the four arc-shaped grooves (810) are distributed in a ring array.

8. The reverse tilting pouring equipment according to claim 7, characterized in that: The mold column (802) is a U-shaped columnar structure, one end of the mold column (802) is connected to the side wall of the fixed block (703), and the other end is arranged at the midpoint of the inner cavity of the first ring frame (705); The casting mold (801) is arranged between the groove (708) and the mold column (802), and the side wall of the casting mold (801) is connected to a plurality of sliding columns (811), one of the sliding columns (811) penetrates the side wall of the first frame (705) and is in sliding cooperation, another of the sliding columns (811) penetrates the side wall of the second frame (706) and is in sliding cooperation, and another of the sliding columns (811) penetrates the side wall of the third frame (707) and is in sliding cooperation, and the top ends of the plurality of sliding columns (811) are connected by a connecting rod (812), and the connecting rod (812) penetrates the arc groove (810) and is in active cooperation with the arc groove (810).

9. The reverse tilting pouring equipment according to claim 8, characterized in that: Two of the casting molds (801) are provided with casting grooves (813) on their side walls, the casting grooves (813) are connected to the mold cavity (803), and the casting grooves (813) are used to guide the metal liquid into the mold cavity (803); The inner wall of the casting mold (801) is provided with a strip groove (8011) matching the shape of the reinforcing rib (2), a sheet groove (8012) matching the shape of the spiral fin (3), a block groove (8013) matching the shape of the reinforcing block (4), an arc groove (8014) matching the shape of the sealing plate (5), and an arc surface (8015) matching the shape of the outlet pipe body (1); An arc convex surface (8016) is integrally formed on the inner side wall at one end of the casting mold (801), and the arc convex surface (8016) is used to cooperate with the mold column (802) to form a closed structure at one end of the mold cavity (803); The inner side wall at the other end of the casting mold (801) is integrally formed with a circular arc concave surface (8017), and the circular arc concave surface (8017) is used to cooperate with the mold column (802) to form an air outlet channel at the other end of the mold cavity (803); The shape of the inner cavity formed by the plurality of casting molds (801) in a combined state and in cooperation with the mold column (802) is the shape of an engine water outlet pipe.

10. The reverse tilting pouring equipment according to claim 9, characterized in that: The pouring assembly (9) comprises a support frame (901) connected to the top surface of the bottom plate (701), a pouring ladle (902) is arranged on the top of the support frame (901), an output end of the pouring ladle (902) is connected to a flow guide tube (903), a side wall of the flow guide tube (903) is connected to a plurality of fixing ears (904), a plug hole is provided on the side wall of the fixing ears (904), and the top surface of the flow guide tube (903) is a hollow structure; The top surface of the flow guide tube (903) is also provided with a cover plate (905), and the cover plate (905) is used to form a closed state for the hollow structure of the top surface of the flow guide tube (903). The side wall of the cover plate (905) is provided with a plurality of second fixing ears (906) corresponding to the positions of the first fixing ears (904). The side wall of the second fixing ear (906) is provided with a plug hole identical to the side wall of the first fixing ear (904). The first fixing ear (904) and the second fixing ear (906) are connected via a plug post (907). The output end of the flow guide tube (903) passes through the side wall of the first ring frame (705) and extends into the casting trough (813).

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