Vacuum pouring device for nodular cast iron pipe fitting production

Abstract

The utility model relates to the technical field of nodular cast iron pipe fitting production, in particular to a vacuum pouring device for nodular cast iron pipe fitting production, which comprises a base, a pouring box arranged on the upper side of the base, an overturning assembly installed on the top of the base, connected with the pouring box and used for driving the pouring box to overturn, and a vacuum pump installed on the base. And the bearing assembly is installed on the overturning assembly, and the bearing assembly is used for bearing the pouring box. The pouring box can be driven to overturn through the overturning assembly, so that the pouring box can be driven to overturn after pouring forming, dry sand and workpieces are directly poured out, the discharging efficiency is improved, and the labor intensity of workers is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to nodular cast iron pipe fitting production technical field, specifically a kind of nodular cast iron pipe fitting production is with vacuum pouring device. BACKGROUND

[0002] Nodular cast iron pipe fitting is important pipe fitting for water supply industry, drainage industry, sewage industry and other fields, when nodular cast iron pipe fitting is processed, molten iron (molten iron) is poured into the mold prepared in advance, to make the cast iron pipe fitting of required shape and size.

[0003] At present, in the process of pouring forming of cast iron pipe fitting, sand and pipe fitting inside pouring box need to be poured out after cast iron piece pouring forming, but dry sand needs to be manually operated to guide out when pouring out, it is troublesome to operate, and efficiency is low, and dry sand has residual high temperature, which can easily cause harm to workers. Therefore, we propose a kind of nodular cast iron pipe fitting production is with vacuum pouring device. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of nodular cast iron pipe fitting production is with vacuum pouring device, solve the problem proposed in background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of nodular cast iron pipe fitting production is with vacuum pouring device, including base, the upper side of the base is provided with pouring box, further including:

[0006] The overturning assembly is installed on the top of the base and connected with the pouring box, and the overturning assembly is used to drive the pouring box to overturn.

[0007] The bearing assembly is installed on the overturning assembly, and the bearing assembly is used to bear the pouring box.

[0008] By adopting the above technical scheme, first, fill dry sand into the pouring box, and then put into the foam mold after flattening, then fill dry sand and compact, then reserve pouring gate, and then pour, after pouring forming cooling, the overturning assembly can drive the pouring box to overturn, so that dry sand and formed workpiece can be poured out quickly, thereby improving the efficiency of discharging.

[0009] As a preferred embodiment of the utility model, the overturning assembly includes:

[0010] The number of the support plates is two, and the two support plates are fixedly installed on the top of the base on both sides respectively, and the two side walls of the pouring box are rotatably connected with the inner side walls of the support plates through short shafts.

[0011] A servo motor is fixedly installed on the outer wall of one of the support plates, and a transmission shaft of the servo motor penetrates the support plate and is fixedly connected to a corresponding short shaft.

[0012] By using the above technical scheme, the pouring box can be driven to rotate by the servo motor, so that the pouring box is driven to overturn, and the dry sand and the workpiece are quickly poured out.

[0013] As a preferred embodiment of the utility model, the bearing assembly comprises:

[0014] A screw rod motor is fixedly installed at the bottom of the inner cavity of the strip-shaped hole of the support plate, and an outer end of a transmission shaft of the screw rod motor is fixedly connected to a screw rod.

[0015] By using the above technical scheme, after the dry sand is introduced into the pouring box, the screw rod is driven to rotate by the screw rod motor, so that the screw rod slider is driven to lift, and the bearing plate is lifted and attached to the bottom of the pouring box, so that the pouring box is supported, the stability of the pouring box during uniform pressing of the dry sand is ensured, and the pressure borne by the servo motor is reduced.

[0016] As a preferred embodiment of the utility model, a vacuum pump is fixedly installed on one side wall of the pouring box, and an output end of the vacuum pump is communicated with the pouring box.

[0017] By using the above technical scheme, during pouring forming, the vacuum pump can form negative pressure in the pouring box, so that impurities and oxides in the metal are reduced and removed in the vacuum environment, and the quality of the poured workpiece is improved.

[0018] As a preferred embodiment of the utility model, the pouring box is a double-layer hollow structure, and water inlet pipes and water outlet pipes are respectively communicated with both sides of one side wall of the pouring box.

[0019] By using the above technical scheme, after pouring forming, water is introduced into the pouring box through the water inlet pipes, and water is discharged through the water outlet pipes, so that the flowing water after pouring forming can accelerate the cooling speed, the workpiece is quickly cooled, and the pouring efficiency is improved.

[0020] As a preferred embodiment of the utility model, a box cover is detachably connected to the top of the pouring box, and a hole is formed in the top of the box cover.

[0021] By using the above technical scheme, the box cover and the hole are arranged, so that pouring is facilitated.

[0022] Compared with the prior art, the utility model has the beneficial effects as follows:

[0023] The vacuum pouring device for nodular cast iron pipe production can drive the pouring box to overturn through the overturning assembly, so that the pouring box can be driven to overturn after pouring forming, and the dry sand and the workpiece can be directly poured out, thereby improving the efficiency of discharging and reducing the labor intensity of workers;

[0024] The pouring box can be supported by the bearing assembly when the dry sand in the pouring box is uniformly pressed, thereby reducing the pressure borne by the servo motor, thereby protecting the servo motor and ensuring the stability of the pouring box during pouring.

[0025] The pouring box is a double-layer structure, water is introduced through the water inlet pipe and discharged through the water outlet pipe, so that the flowing water can accelerate the cooling speed after pouring forming, thereby improving the pouring efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0026] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments, read in conjunction with the accompanying drawings:

[0027] Figure 1 Figure 1 is a first overall structure schematic diagram of the vacuum pouring device for nodular cast iron pipe production of the present application;

[0028] Figure 2 Figure 2 is a second overall structure schematic diagram of the vacuum pouring device for nodular cast iron pipe production of the present application;

[0029] Figure 3 Figure 3 is a cross-sectional structure schematic diagram of the pouring box of the vacuum pouring device for nodular cast iron pipe production of the present application.

[0030] In the drawings:

[0031] 1, base;

[0032] 2, pouring box; 21, box cover; 22, hole; 23, vacuum pump; 24, water inlet pipe; 25, water outlet pipe;

[0033] 3, support plate; 31, servo motor; 32, screw motor; 33, screw; 34, screw sliding block; 35, bearing plate. DETAILED DESCRIPTION

[0034] Referring to Figures 1-3 The present application provides a technical solution: a vacuum pouring device for nodular cast iron pipe production, comprising a base 1, the upper side of the base 1 is provided with a pouring box 2, further comprising:

[0035] The turnover assembly is installed on the top of the base 1 and connected with the pouring box 2, and is used to drive the pouring box 2 to turn over;

[0036] The bearing assembly is installed on the turnover assembly and is used to bear the pouring box 2.

[0037] It should be understood that the dry sand is first filled into the pouring box 2, and then the foam mold is placed and flattened, and then the dry sand is filled and compacted, and then the sprue is reserved, and then the pouring is performed. After the pouring molding is cooled, the turnover assembly can drive the pouring box 2 to turn over, so that the dry sand and the formed workpiece can be quickly poured out, thereby improving the efficiency of discharging.

[0038] Further, the top of the pouring box 2 is detachably connected with a box cover 21, and a hole 22 is formed in the top of the box cover 21. The box cover 21 and the hole 22 are arranged to facilitate pouring.

[0039] As shown in Figure 1 and 2 , the turnover assembly comprises:

[0040] The support plates 3 are two in number and are fixedly installed on the top of the base 1 on both sides, and the two side walls of the pouring box 2 are rotatably connected with the inner side walls of the support plates 3 through short shafts;

[0041] The servo motor 31 is fixedly installed on the outer wall of one of the support plates 3, and the transmission shaft of the servo motor 31 penetrates the support plate 3 and is fixedly connected with the corresponding short shaft;

[0042] It should be understood that in actual use, the servo motor 31 can drive the pouring box 2 to rotate, thereby driving the pouring box 2 to turn over and quickly pouring out the dry sand and the workpiece.

[0043] As shown in Figure 1 and 2 , the bearing assembly comprises:

[0044] The screw motor 32 is fixedly installed at the bottom of the strip-shaped hole in the outer wall of the support plate 3, and the outer end of the transmission shaft of the screw motor 32 is fixedly connected with a screw rod 33, the outer end of the screw rod 33 is rotatably connected with the top of the inner cavity of the strip-shaped hole, and the outer wall of the screw rod 33 is sleeved with a matched screw rod sliding block 34, and the inner side wall of the screw rod sliding block 34 is fixedly connected with a bearing plate 35;

[0045] It should be understood that after the dry sand is introduced into the pouring box 2, the screw motor 32 is used to drive the screw rod 33 to rotate, thereby driving the screw rod sliding block 34 to lift, so that the bearing plate 35 is lifted and attached to the bottom of the pouring box 2, thereby bearing the pouring box 2, ensuring the stability of the pouring box 2 when the dry sand is uniformly pressed, and reducing the pressure borne by the servo motor 31.

[0046] As shown in Figure 1 The side wall of the pouring box 2 is fixed with a vacuum pump 23, the output end of the vacuum pump 23 is communicated with the pouring box 2, when pouring forming, the vacuum pump 23 can make the pouring box 2 form negative pressure, so that the pouring workpiece is beneficial to reduce and remove impurities and oxides in the metal in the vacuum environment, and improve the quality of the pouring workpiece.

[0047] As shown in Figure 1 The pouring box 2 is a double-layer hollow structure, the side wall of the pouring box 2 is respectively communicated with the water inlet pipe 24 and the water outlet pipe 25 on both sides;

[0048] It should be understood that after pouring forming, water is introduced through the water inlet pipe 24 and water is discharged through the water outlet pipe 25, so that the flowing water after pouring forming can accelerate the cooling speed, so that the workpiece is quickly cooled, thereby being beneficial to improve the pouring efficiency.

[0049] In addition, in this paper, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0050] Although the specific embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the specific embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A vacuum pouring device for producing a ductile cast iron pipe, comprising a base (1), an upper side of the base (1) being provided with a pouring box (2), characterized in that, Also include: The turnover assembly is installed on the top of the base (1), and is connected with the pouring box (2), and the turnover assembly is used to drive the pouring box (2) to overturn; The bearing assembly is installed on the turnover assembly, and the bearing assembly is used to bear the pouring box (2).

2. The vacuum ladling device for producing a ductile cast iron pipe according to claim 1, characterized in that: The turnover assembly includes: The number of the supporting plate (3) is two, and the two supporting plates (3) are fixedly installed on the top of the base (1) on both sides, and the two side walls of the pouring box (2) are rotatably connected with the inner side wall of the supporting plate (3) through the short shaft; The servo motor (31) is fixedly installed on the outer wall of one of the supporting plates (3), and the transmission shaft of the servo motor (31) penetrates the supporting plate (3) and is fixedly connected with the corresponding short shaft.

3. The vacuum ladling device for producing a ductile cast iron pipe according to claim 2, characterized in that: The bearing assembly includes: The outer wall of the supporting plate (3) is provided with a strip-shaped hole, the screw rod motor (32) is fixedly installed in the inner cavity bottom of the strip-shaped hole, the outer end of the transmission shaft of the screw rod motor (32) is fixedly connected with the screw rod (33), the outer end of the screw rod (33) is rotatably connected with the inner cavity top of the strip-shaped hole, the outer wall of the screw rod (33) is sleeved with the matched screw rod sliding block (34), and the inner side wall of the screw rod sliding block (34) is fixedly connected with the bearing plate (35).

4. The vacuum ladling device for producing a ductile cast iron pipe according to claim 3, characterized in that: The side wall of the pouring box (2) is fixedly connected with the vacuum pump (23), and the output end of the vacuum pump (23) is communicated with the pouring box (2).

5. The vacuum ladling device for producing a ductile cast iron pipe according to claim 4, characterized in that: The pouring box (2) is a double-layer hollow structure, and the two sides of the side wall of the pouring box (2) are respectively communicated with the water inlet pipe (24) and the water outlet pipe (25).

6. The vacuum ladling device for producing a ductile cast iron pipe according to claim 5, characterized in that: The top of the pouring box (2) is detachably connected with the box cover (21), and the top of the box cover (21) is provided with a hole (22).

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