A compression moulding production apparatus for producing a house sill

Abstract

The application discloses a press die production equipment for producing house bottom beams and relates to the technical field of pressure forming. In order to solve the scratch problem, the equipment specifically comprises a base and a top frame fixed to the top outer wall of the base through bolts. A same set of press die assemblies are arranged above the base and below the top frame. The top frame is drivingly connected to the press die assemblies through a lifting pressure applying mechanism. The bottom of the top frame is provided with a blanking mechanism for blanking. The whole press die assembly is arranged as a combination of a lower die plate, an upper die plate, a bending plate one and a bending plate two. The bending plate one is rotated relative to the lower die plate, and the bending plate two is rotated relative to the bending plate one for bending type forming. On the one hand, twice inward bending forming can be realized in single movement, process steps are saved, and efficiency is improved. On the other hand, the bending type forming can also prevent scratches caused by the friction between the plate and the press die assembly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pressure forming, in particular to a press die production equipment for producing house bottom beams. BACKGROUND

[0002] Box girder is one of the widely used types of house bottom beams. In production, box girder is usually formed by pouring or pressure forming process. However, with the rise of fabricated buildings, the pressure forming process is more convenient and has smaller self-weight, so it is widely used. Pressure forming is to use a pressure machine with a cooperating press die to apply pressure to extrude the plate into a shape.

[0003] According to the search, the patent with the Chinese patent publication number CN1009623B discloses a process and equipment for pressure forming of small elongation rate plate. The process includes placing the peripheral part of the plate on the lower blank clamping part, which forms a cylindrical body to accommodate an elastically yieldable pad and cooperates with the upper blank clamping part to clamp the plate. The outer sliding block lowers the edge of the upper plate and makes the material in the pad flow to deform the central part of the plate. The deformed area is approximately equal to the area of the finished product. The central sliding block is moved to form an angular volume and the central part of the plate by supporting the last flow of material.

[0004] The above-mentioned patent has the following disadvantages: it uses pressure to extrude the plate into a shape, but in this process, sliding friction occurs between the plate and the die, which causes scratches on the surface of the plate or the die. For the inwardly tapered box girder structure (such as Figure 1 ), it cannot be formed at one time, which increases the process cost.

[0005] Therefore, the present application provides a press die production equipment for producing house bottom beams. SUMMARY

[0006] The purpose of the present application is to solve the problems existing in the prior art and provide a press die production equipment for producing house bottom beams.

[0007] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0008] A press die production equipment for producing house bottom beams, comprising a base and a top frame fixed to the top outer wall of the base by bolts;

[0009] A same set of press die assemblies is arranged above the base and below the top frame. The top frame is drivingly connected to the press die assemblies by a lifting pressure applying mechanism, and the bottom of the top frame is provided with a discharging mechanism for discharging.

[0010] The compression mold assembly comprises an upper mold plate connected to the lifting pressure applying mechanism and a lower mold plate connected to the base through a sliding rod, both sides of the lower mold plate are rotatably connected with a bending plate one, the other end of the bending plate one is rotatably connected with a bending plate two;

[0011] The outer wall of the bottom of the lower mold plate is buckled with a spring one, the other end of the spring one is buckled to the top outer wall of the base, the outer wall of the bending plate one is rotatably connected with a connecting rod, the other end of the connecting rod is rotatably connected to the base, and the side walls of the lower mold plate, the bending plate one and the bending plate two are provided with the same set of linkage assemblies.

[0012] Preferably, the linkage assembly comprises a shaft one, a shaft two and a shaft three, the shaft three is fixed to the inner wall of the lower mold plate and rotatably connected to the inner wall of the bending plate one, the shaft two is rotatably connected to the side wall of the bending plate one, the shaft one is rotatably connected to the inner wall of the bending plate one and fixed to one end of the bending plate two, the shaft one and the shaft two are transmission matched through a gear set, and the shaft two and the shaft three are transmission matched through a chain transmission assembly.

[0013] Further, the upper mold plate is slidably connected to the bottom of the top frame through a guide rod one.

[0014] Based on the foregoing scheme, the lifting pressure applying mechanism comprises a hydraulic cylinder and a connecting block, the connecting block is slidably connected to the bottom of the top frame through a guide rod two, both sides of the connecting block are rotatably connected with connecting rods two, the other end of the connecting rod two is rotatably connected with connecting rods one and three, the other end of the connecting rod one is rotatably connected to the outer wall of the bottom of the top frame, and the other end of the connecting rod three is rotatably connected to the outer wall of the top of the upper mold plate.

[0015] In the foregoing scheme, a better scheme is that when the plate is in a forming state, the connecting block and the connecting rod two are horizontally parallel, and the connecting rod one and the connecting rod three are vertically parallel.

[0016] As a further scheme of the present application, the blanking mechanism is arranged in two symmetrical groups, each of the blanking mechanisms comprises a plurality of linear arrays of rubber wheels, the rubber wheels are rotatably connected with a support fixed to the outer wall of the bottom of the top frame through an axle, and adjacent axles are transmission matched through a synchronous belt assembly.

[0017] Meanwhile, the outer wall of the support is fixed with a hydraulic motor through bolts, and the output shaft of the hydraulic motor is connected to the end of one of the axles through a shaft coupling.

[0018] As a preferred embodiment of the present application, the hydraulic cylinder and the hydraulic motor are connected to the same hydraulic system.

[0019] Meanwhile, the hydraulic system comprises an oil tank and a bidirectional oil pump, one end of the bidirectional oil pump is connected to the oil tank, the other end of the bidirectional oil pump is connected to the rodless cavity of the hydraulic cylinder, and the bidirectional oil pump and the hydraulic cylinder connecting pipeline are further connected to the hydraulic motor through a one-way pressure valve, and the other end of the hydraulic motor is connected to the oil tank.

[0020] As a more preferred scheme of the present application: the one-way pressure valve comprises a valve shell and a conical valve body, the inner wall of the valve shell is fixed with a hollow frame, the conical valve body is connected to the hollow frame through a sliding rod, and the opposite side of the conical valve body and the hollow frame is buckled with a spring two.

[0021] The present application has the following advantages:

[0022] 1. The present application sets the entire compression mold assembly as a combination of the lower die plate, the upper die plate, the bending plate one and the bending plate two, uses the plane limiting of the lower die plate and the upper die plate, the rotation of the bending plate one relative to the lower die plate, and the rotation of the bending plate two relative to the bending plate one for bending type forming, which can realize twice inward bending forming in single movement, saves process steps, improves efficiency, and prevents scratches caused by the friction between the plate and the compression mold assembly.

[0023] 2. The present application sets the linkage rod and the linkage assembly on the basis of setting the bending forming, so that the rotation of the bending plate one and the rotation of the bending plate two are linked and matched, and the power is derived from the descent of the lower die plate, so that the lifting of the upper die plate, the lifting of the lower die plate, the rotation of the bending plate one and the rotation of the bending plate two are synchronized, which increases the synchronous linkage and reduces the power source arrangement, facilitates volume optimization and cost control.

[0024] 3. The present application sets the lifting and pressing mechanism as a "multi-link" structure combined by the connecting rod one, the connecting rod two and the connecting rod three, and when the plate is in the forming state, the connecting block and the connecting rod two are horizontally parallel, and the connecting rod one and the connecting rod three are vertically parallel, which can realize self-locking of the entire lifting and pressing mechanism in the pressure maintaining stage of the forming state, so that the hydraulic cylinder does not need to continuously provide pressure, and the rotation of the connecting rod one and the connecting rod three can also make the stroke of the hydraulic cylinder be amplified by one time and then applied to the upper die plate, thereby saving the stroke and amplifying the load when the included angle between the connecting rod one and the connecting rod three and the vertical plane tends to degree.

[0025] 4. The present application sets the blanking mechanism, which can reliably blank the formed plate in the length direction through the rotation of multiple rubber wheels.

[0026] 5. The present invention, based on the hydraulic drive of the hydraulic cylinder and hydraulic motor, has a targeted design of the hydraulic system pipeline and the one-way pressure valve. On the one hand, the drive of the hydraulic cylinder and the hydraulic motor are integrated, and the drive source comes from the two-way oil pump, which can reduce the power layout. On the other hand, it can also automatically switch the path of the hydraulic system according to the resistance, without the need for manual control and algorithm intervention, thus achieving automation function. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a cross-sectional view of a plate formed by a die-forming production device for producing bottom beams of a house proposed by the present invention;

[0028] Figure 2 This is a schematic diagram of the overall structure of a die production device for producing house bottom beams proposed by the present invention;

[0029] Figure 3 This is a schematic structural diagram of a die assembly of a die production device for producing bottom beams of houses proposed by the present invention;

[0030] Figure 4 This is a schematic diagram of the linkage assembly structure of a die production equipment for producing house bottom beams proposed by the present invention;

[0031] Figure 5 This is a schematic structural diagram of a lifting and pressing mechanism of a die production device for producing bottom beams of houses proposed by the present invention;

[0032] Figure 6 This is a schematic structural diagram of a blanking mechanism of a die production device for producing house bottom beams proposed by the present invention;

[0033] Figure 7 This is a schematic diagram of the piping structure of a hydraulic system of a die production device for producing bottom beams of houses proposed by the present invention;

[0034] Figure 8 This is a schematic diagram of the internal structure of a one-way pressure valve of a die production equipment for producing house bottom beams proposed by the present invention.

[0035] In the figure: 1, base; 2, top frame; 3, lifting pressure mechanism; 4, blanking mechanism; 5, die assembly; 6, linkage rod; 7, bending plate one; 8, spring one; 9, sliding rod one; 10, lower die plate; 11, linkage assembly; 12, upper die plate; 13, bending plate two; 14, shaft one; 15, gear set; 16, shaft two; 17, chain transmission assembly; 18, shaft three; 19, guide rod one; 20, hydraulic cylinder; 21, guide rod two; 22, connecting rod one; 23, connecting rod two; 24, connecting rod three; 25, connecting block; 26, hydraulic motor; 27, support; 28, rubber wheel; 29, wheel shaft; 30, synchronous belt assembly; 31, one-way pressure valve; 32, oil tank; 33, two-way oil pump; 34, valve housing; 35, conical valve body; 36, spring two; 37, sliding rod two; 38, hollow frame. DETAILED DESCRIPTION

[0036] The technical solutions of the present application will be further described in detail below in combination with specific embodiments.

[0037] Embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the accompanying drawings are exemplary and are only used to explain the present application and cannot be understood as a limitation of the present application.

[0038] Embodiment 1: A die production device for producing house bottom beams, as shown in the figure, comprising a base 1 and a top frame 2 fixed to the top outer wall of the base 1 by bolts, a same set of die assemblies 5 is arranged above the base 1 and below the top frame 2, the top frame 2 is drivingly connected to the die assemblies 5 through a lifting pressure mechanism 3, and the bottom of the top frame 2 is provided with a blanking mechanism 4 for blanking. Figures 1-8

[0039] The die assembly 5 comprises an upper die plate 12 drivingly connected to the lifting pressure mechanism 3 and a lower die plate 10 slidingly connected to the base 1 through a sliding rod one 9, both sides of the lower die plate 10 are rotatably connected with a bending plate one 7, and the other end of the bending plate one 7 is rotatably connected with a bending plate two 13.

[0040] The outer wall of the bottom of the lower die plate 10 is buckled with a spring one 8, the other end of the spring one 8 is buckled to the top outer wall of the base 1, the outer wall of the bending plate one 7 is rotatably connected with a linkage rod 6, the other end of the linkage rod 6 is rotatably connected to the base 1, and the side walls of the lower die plate 10, the bending plate one 7 and the bending plate two 13 are provided with a same set of linkage assemblies 11.

[0041] ​The linkage assembly 11 comprises shaft one 14, shaft two 16 and shaft three 18, the shaft three 18 is fixed to the inner wall of the lower die plate 10 and rotationally connected to the inner wall of the bending plate one 7, the shaft two 16 is rotationally connected to the side wall of the bending plate one 7, the shaft one 14 is rotationally connected to the inner wall of the bending plate one 7 and fixed to one end of the bending plate two 13, the shaft one 14 and the shaft two 16 are transmission matched through the gear set 15, the shaft two 16 and the shaft three 18 are transmission matched through the chain transmission assembly 17.

[0042] In the initial state, the lower die plate 10, the bending plate one 7 and the bending plate two 13 are parallel and coplanar, at this time, the plate is placed on the plane formed by them, then the upper die plate 12 is controlled to descend by the lifting pressure mechanism 3, after the upper die plate 12 contacts with the lower die plate 10, the upper die plate 12 continues to descend, so that the lower die plate 10 descends, and the bending plate one 7 rotates relative to the lower die plate 10 through the action of the linkage rod 6, so that the plate is bent once, at the same time, when the bending plate one 7 rotates relative to the lower die plate 10, the shaft two 16 also rotates relative to the shaft three 18, so that the shaft two 16 rotates under the transmission action of the chain transmission assembly 17, and the shaft two 16 drives the shaft one 14 to rotate through the gear set 15, so that the bending plate two 13 rotates inward to be bent twice, until the state shown in Figure 4 After the state shown, the bending forming is completed, and the plate is formed into the shape shown in Figure 1 .

[0043] The device is formed by the combination of the lower die plate 10, the upper die plate 12, the bending plate one 7 and the bending plate two 13, the bending forming is realized by the plane limiting of the lower die plate 10 and the upper die plate 12, the rotation of the bending plate one 7 relative to the lower die plate 10 and the rotation of the bending plate two 13 relative to the bending plate one 7, on the one hand, the twice inward bending forming can be realized in single motion, the process steps are saved, and the efficiency is improved, on the other hand, the bending forming can also prevent scratches caused by the friction between the plate and the compression mold assembly 5.

[0044] In addition, on the basis of the bending forming, the linkage rod 6 and the linkage assembly 11 are arranged, so that the rotation of the bending plate one 7 and the rotation of the bending plate two 13 are linked, and the power is derived from the descent of the lower die plate 10, so that the lifting of the upper die plate 12, the lifting of the lower die plate 10, the rotation of the bending plate one 7 and the rotation of the bending plate two 13 are synchronous, which increases the synchronous linkage and reduces the power source arrangement, facilitating the volume optimization and cost control.

[0045] In order to solve the lifting and force problems, as shown in Figure 5 The upper die plate 12 is slidingly connected to the bottom of the top frame 2 through the guide rod one 19.

[0046] The lifting pressure mechanism 3 comprises a hydraulic cylinder 20 and a connecting block 25 which is slidingly connected to the bottom of the top frame 2 through a guide rod two 21, both sides of the connecting block 25 are rotatably connected with connecting rods two 23, the other end of the connecting rod two 23 is rotatably connected with connecting rods one 22 and connecting rods three 24, the other end of the connecting rod one 22 is rotatably connected with the outer wall of the bottom of the top frame 2, and the other end of the connecting rod three 24 is rotatably connected with the outer wall of the top of the upper die plate 12.

[0047] When the plate is in a forming state, the connecting block 25 and the connecting rod two 23 are horizontally parallel, and the connecting rod one 22 and the connecting rod three 24 are vertically parallel.

[0048] When the hydraulic cylinder 20 is extended or retracted, it can drive the connecting block 25 to rise and fall, thereby moving the hinge points of the connecting rod one 22 and the connecting rod three 24 through the connecting rod two 23, and driving the upper die plate 12 to rise and fall.

[0049] The device, by setting the lifting pressure mechanism 3 as a "multi-connecting rod" structure composed of connecting rod one 22, connecting rod two 23 and connecting rod three 24, and when the plate is in a forming state, the connecting block 25 and the connecting rod two 23 are horizontally parallel, and the connecting rod one 22 and the connecting rod three 24 are vertically parallel, thereby on the one hand, during the pressure maintaining stage of the forming state, the entire lifting pressure mechanism 3 can realize self-locking, so that the hydraulic cylinder 20 does not need to continuously provide pressure, on the other hand, the synchronous rotation of the connecting rod one 22 and the connecting rod three 24 can also make the stroke of the hydraulic cylinder 20 be amplified by one time and then applied to the upper die plate 12, thereby saving the stroke, and at the same time, during the forming process, when the included angle between the connecting rod one 22 and the connecting rod three 24 and the vertical plane tends to 0 degrees, it can also amplify the transverse force provided by the connecting rod two 23 and then apply it to the upper die plate 12, thereby realizing load amplification.

[0050] In order to solve the problem of blanking; as Figure 6 As shown, the blanking mechanism 4 is arranged in two symmetrical groups, each group of the blanking mechanism 4 is composed of a plurality of linear arrays of rubber wheels 28, the rubber wheels 28 are rotatably connected with the brackets 27 fixed to the outer wall of the bottom of the top frame 2 through the wheel shafts 29, adjacent wheel shafts 29 are drivingly matched through synchronous belt assemblies 30, and the outer wall of the bracket 27 is fixed with a hydraulic motor 26 through bolts, and the output shaft of the hydraulic motor 26 is connected to the end of one of the wheel shafts 29 through a shaft coupling.

[0051] After forming, the plate will be wrapped on the outer wall of the upper die plate 12, and will rise with the upper die plate 12, until the top bent part of the plate contacts the rubber wheel 28 and generates a certain contact pressure, then the hydraulic motor 26 will drive the rubber wheel 28 to rotate, so that the rubber wheel 28 drives the plate to move along the length direction due to the fact that the friction coefficient between the plate and the upper die plate 12 is smaller than that between the plate and the rubber wheel 28, at this time, the plate can be carried by using artificial, mechanical arm or other mechanical devices with conveying function on the other side.

[0052] The device, by setting the blanking mechanism 4, the rotation of the plurality of rubber wheels 28 can make the plate after forming along the length direction reliable blanking.

[0053] The initial state, the lower die plate 10, the bending plate one 7, the bending plate two 13 are parallel coplanar, at this time the plate is placed on the plane composed of it, then the upper die plate 12 is controlled to descend by the lifting pressure mechanism 3, until the upper die plate 12 contacts with the lower die plate 10, the upper die plate 12 continues to descend, so that the lower die plate 10 descends, so that the bending plate one 7 rotates relative to the lower die plate 10 by the action of the connecting rod 6, the plate is bent once, at the same time, the shaft two 16 also rotates relative to the shaft three 18 when the bending plate one 7 rotates relative to the lower die plate 10, so that the shaft two 16 rotates under the transmission action of the chain transmission assembly 17, the shaft two 16 drives the shaft one 14 to rotate through the gear set 15, so that the bending plate two 13 rotates inward, and is bent twice, until it reaches Figure 4 The bending forming is completed, and the plate is formed into Figure 1 The shape shown, when the hydraulic cylinder 20 extends and retracts during lifting, it can drive the connecting block 25 to lift, so that the hinge point of the connecting rod one 22 and the connecting rod three 24 moves through the connecting rod two 23, and drives the upper die plate 12 to lift, in addition, the formed plate is wrapped on the outer wall of the upper die plate 12, and rises with the upper die plate 12, until the top bending part of the plate contacts the rubber wheel 28 and generates a certain contact pressure, the hydraulic motor 26 drives the rubber wheel 28 to rotate, so that the rubber wheel 28 drives the plate to move along the length direction due to the fact that the friction factor of the plate and the upper die plate 12 is less than the friction factor of the plate and the rubber wheel 28, at this time, the plate can be carried by artificial, mechanical arm or other mechanical devices with conveying function on the other side.

[0054] Embodiment 2: a compression mold production equipment for producing house bottom beam, as Figure 7 、 8 In order to solve the driving problem, the embodiment is improved on the basis of embodiment 1: the hydraulic cylinder 20 and the hydraulic motor 26 are connected with the same hydraulic system, the hydraulic system includes an oil tank 32 and a double-way oil pump 33, one end of the double-way oil pump 33 is connected to the oil tank 32, the other end of the double-way oil pump 33 is connected to the rodless cavity of the hydraulic cylinder 20, and the pipeline connected with the double-way oil pump 33 and the hydraulic cylinder 20 is also connected to the hydraulic motor 26 through a one-way pressure valve 31, and the other end of the hydraulic motor 26 is connected to the oil tank 32.

[0055] The one-way pressure valve 31 includes a valve shell 34 and a conical valve body 35, the inner wall of the valve shell 34 is fixed with a hollow frame 38, the conical valve body 35 is slidably connected to the hollow frame 38 through a slide rod two 37, and the opposite side of the conical valve body 35 and the hollow frame 38 is buckled with a spring two 36.

[0056] When the embodiment is in use, when it is in the descending state, the two-way oil pump 33 is started, and the oil in the oil tank 32 is delivered to the rodless chamber of the hydraulic cylinder 20, so that the hydraulic cylinder 20 extends. At this time, due to the obstruction of the cone valve body 35 in the one-way pressure valve 31, the pressure of the rodless chamber of the hydraulic cylinder 20 is transmitted to the Figure 8 On the bottom side of the middle frustum valve body 35, the frustum valve body 35 fits tightly against the inner wall of the valve housing 34 to achieve sealing. After molding, the two-way oil pump 33 is started in the reverse direction to gradually extract the oil in the rodless chamber of the hydraulic cylinder 20. At this time, due to the elastic force of the frustum valve body 35, the frustum valve body 35 will not move due to negative pressure. Until the plate contacts the rubber wheel 28, the height of the upper template 12 is also limited. At this time, the two-way oil pump 33 continues to start in the reverse direction, which will gradually increase the negative pressure in the rodless chamber of the hydraulic cylinder 20 and the inner cavity at the bottom of the valve housing 34, so that the frustum valve body 35 is attracted by the negative pressure to overcome the elastic force of the second spring 36 and move. A gap appears between the frustum valve body 35 and the valve housing 34, and the oil in the oil tank 32 flows through the hydraulic motor 26, driving the hydraulic motor 26 to rotate, thereby driving the rubber wheel 28 to rotate for unloading.

[0057] This device, based on the hydraulic drive of the hydraulic cylinder 20 and the hydraulic motor 26, has a targeted design of the hydraulic system pipeline and the one-way pressure valve 31. On the one hand, the drive of the hydraulic cylinder 20 and the hydraulic motor 26 is integrated, and the drive source comes from the two-way oil pump 33, which can reduce the power layout. On the other hand, it can also automatically switch the hydraulic system path according to the resistance, without the need for manual control and algorithm intervention, thereby achieving automation function.

[0058] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A die-casting production device for producing bottom beams of houses, comprising a base (1) and a top frame (2) fixed to the top outer wall of the base (1) by bolts, characterized in that: The same set of die assemblies (5) is provided above the base (1) and below the top frame (2); the top frame (2) is connected to the die assemblies (5) via a lifting and pressing mechanism (3); and a material discharge mechanism (4) for material discharge is provided at the bottom of the top frame (2); The die assembly (5) includes an upper die plate (12) which is transmission-connected to the lifting and pressing mechanism (3) and a lower die plate (10) which is slidingly connected to the base (1) via a slide bar (9), both sides of the lower die plate (10) are rotationally connected to a bending plate (7), and the other end of the bending plate (7) is rotationally connected to a bending plate (13); The bottom outer wall of the lower template (10) is buckled with a spring 1 (8), the other end of the spring 1 (8) is buckled with the top outer wall of the base (1), the outer wall of the bending plate 1 (7) is rotatably connected to a linkage rod (6), the other end of the linkage rod (6) is rotatably connected to the base (1), and the side walls of the lower template (10), bending plate 1 (7), and bending plate 2 (13) are provided with the same set of linkage components (11); The upper template (12) is slidably connected to the bottom of the top frame (2) via a guide rod (19); The lifting and pressing mechanism (3) includes a hydraulic cylinder (20) and a connecting block (25), wherein the connecting block (25) is slidably connected to the bottom of the top frame (2) through the guide rod 2 (21), and both sides of the connecting block (25) are rotatably connected to the connecting rod 2 (23), and the other end of the connecting rod 2 (23) is rotatably connected to the connecting rod 1 (22) and the connecting rod 3 (24), and the other end of the connecting rod 1 (22) is rotatably connected to the bottom outer wall of the top frame (2), and the other end of the connecting rod 3 (24) is rotatably connected to the top outer wall of the upper template (12); The unloading mechanism (4) is arranged in two groups symmetrically, and each group of the unloading mechanism (4) is composed of a plurality of rubber wheels (28) in a linear array, and the rubber wheels (28) are rotatably connected to a bracket (27) fixed to the outer wall of the bottom of the top frame (2) through a wheel shaft (29), and the adjacent wheel shafts (29) are driven by a synchronous belt assembly (30); A hydraulic motor (26) is fixed to the outer wall of the bracket (27) by bolts, and an output shaft of the hydraulic motor (26) is connected to the end of one of the wheel axles (29) through a coupling; The linkage assembly (11) includes shaft one (14), shaft two (16) and shaft three (18), wherein shaft three (18) is fixed to the inner wall of the lower template (10) and is rotatably connected to the inner wall of the bending plate one (7), shaft two (16) is rotatably connected to the side wall of the bending plate one (7), shaft one (14) is rotatably connected to the inner wall of the bending plate one (7) and shaft one (14) is fixed to one end of the bending plate two (13), shaft one (14) and shaft two (16) are coupled to each other through a gear set (15), and shaft two (16) and shaft three (18) are coupled to each other through a chain transmission assembly (17); The hydraulic cylinder (20) and the hydraulic motor (26) are connected to the same hydraulic system; The hydraulic system comprises an oil tank (32) and a bidirectional oil pump (33), one end of the bidirectional oil pump (33) is connected to the oil tank (32), the other end of the bidirectional oil pump (33) is connected to the rodless chamber of the hydraulic cylinder (20), and the connecting pipeline between the bidirectional oil pump (33) and the hydraulic cylinder (20) is also connected to the hydraulic motor (26) via a one-way pressure valve (31), and the other end of the hydraulic motor (26) is connected to the oil tank (32); The one-way pressure valve (31) includes a valve housing (34) and a cone-shaped valve body (35). A hollow frame (38) is fixed to the inner wall of the valve housing (34). The cone-shaped valve body (35) is slidably connected to the hollow frame (38) via a second slide rod (37). A second spring (36) is buckled on the opposite side of the cone-shaped valve body (35) and the hollow frame (38). Bending forming is performed by utilizing the plane limit of the lower template (10) and the upper template (12), the rotation of the bending plate 1 (7) relative to the lower template (10), and the rotation of the bending plate 2 (13) relative to the bending plate 1 (7), thereby achieving two inward bending forming operations in a single movement; By providing a connecting rod (6) and a linkage assembly (11), the lifting and lowering of the upper template (12), the lifting and lowering of the lower template (10), the rotation of the bending plate 1 (7) and the rotation of the bending plate 2 (13) are synchronized.

2. A die production equipment for producing house bottom beams according to claim 1, characterized in that: When in the plate forming state, the connecting block (25) and the second connecting rod (23) are horizontally parallel, and the first connecting rod (22) and the third connecting rod (24) are vertically parallel.

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