Die heating device in casting process

Abstract

The utility model relates to the technical field of casting processing, in particular to a mold heating device in a casting process, which is characterized in that impurities in heat exchange liquid are screened out through a filtering device, so that the practicability of the device is improved; comprising a die-casting machine body, a fixed die, a movable die, a feeding pipe, a feeding hopper and a first hydraulic cylinder, the fixed die is installed in the die-casting machine body, the movable die is located on the rear side of the fixed die, the feeding pipe is installed on the lower portion of the front end face of the die-casting machine body, and the first hydraulic cylinder is installed on the front end face of the feeding pipe; a piston is connected to the moving end of the first hydraulic cylinder, a feeding hopper is arranged on the front portion of the upper end face of the feeding pipe, and the output end of the feeding pipe communicates with a gap between the fixed mold and the moving mold; comprising a heat exchange device, a pushing device and a filtering device, the heat exchange device is connected with the movable mold, the pushing device is installed on the heat exchange device, and the filtering device is connected with the pushing device.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of foundry processing, in particular to a mould heating device in the foundry process. BACKGROUND

[0002] In the casting process, mold heating is a crucial link; the temperature of the mold will have a great influence on the quality of the cast product; if the mold temperature is uneven, the surface of the casting may appear scar, porosity and other defects, resulting in substandard casting quality; in addition, temperature difference may also cause mold deformation, cracking and other problems; therefore, before casting, the mold needs to be heated to a certain extent to make the temperature distribution uniform, so as to avoid problems caused by temperature difference, and the mold cooling rate also needs to be controlled during the cooling process to maintain the mold temperature and prevent rapid cooling from damaging the mold.

[0003] The prior art CN201920818085.2 Chinese utility model patent relates to a mold heating device, which includes a fixed seat, a support part, a slide rail, a heating mechanism, a heating assembly, a heating part, a heat preservation cover and a connecting part, etc., which can improve heat utilization rate and mold heating efficiency.

[0004] However, the above-mentioned device does not have the ability to filter the heating medium in actual use, affecting the transmission performance of the pipeline. UTILITY MODEL CONTENT

[0005] To solve the above technical problems, the utility model provides a mold heating device in the foundry process, which is connected with the movable mold through a heat exchange device, increases the effective heat exchange area of the movable mold, improves the control efficiency of the temperature of the movable mold main body, drives the heat exchange liquid to flow through the pushing device, screens out the impurities in the heat exchange liquid through the filtering device, and improves the practicability of the device.

[0006] The utility model discloses a mould heating device in casting process, including die -casting machine main body, fixed mould, mobile mould, feeding pipe, feeding hopper and first hydraulic cylinder, install fixed mould in die -casting machine main body, and mobile mould is located the rear side of fixed mould, and the lower part of the front end surface of die -casting machine main body is installed with feeding pipe, and the front end surface on feeding pipe is installed with first hydraulic cylinder, and the mobile end on first hydraulic cylinder is connected with piston, and the front part of the upper end surface of feeding pipe is provided with feeding hopper, and the output of feeding pipe communicates with the gap between fixed mould and mobile mould, including heat exchange device, pusher and filter device, and heat exchange device is connected with mobile mould, and pusher is installed on heat exchange device, and filter device is connected with pusher, through heat exchange device and mobile mould connection, increase the effective heat exchange area of mobile mould, improved the control efficiency of mobile mould main part temperature, through pusher drive heat exchange liquid flow, through filter device and the impurity in heat exchange liquid are screened, improved the practicality of device.

[0007] Preferably, the heat exchange device includes a mounting plate, a heat exchange tank, a second hydraulic cylinder, a connecting plate, and a heat exchange protrusion. The mobile mold is fixed to the front end surface of the mounting plate. A plurality of heat exchange tanks are arranged on the rear end surface of the mounting plate. The second hydraulic cylinder is installed on the rear part of the die-casting machine body. The connecting plate is installed on the moving end of the second hydraulic cylinder. A plurality of heat exchange protrusions are arranged on the front end surface of the connecting plate corresponding to the positions of the plurality of heat exchange tanks. The mounting plate and the connecting plate are connected by bolts. The control of the second hydraulic cylinder drives the mobile mold to move forward and backward to complete the casting of the mold in cooperation with the fixed mold. The heat exchange tank and the heat exchange protrusion increase the contact area between the mounting plate and the connecting plate, thereby improving the control efficiency of the temperature of the mobile mold. The connecting plate and the mounting plate are connected by bolts, which facilitates the quick disassembly and replacement of the mobile mold, thereby improving the practicality of the device.

[0008] Preferably, the device further includes a heating barrel, a first electromagnetic valve, and an electric heating rod. The heating barrel is installed on the right part of the end surface of the connecting plate. The interiors of the plurality of heat exchange protrusions are cavities. The heating barrel is in communication with the interiors of the plurality of heat exchange protrusions through a plurality of high-temperature-resistant pipelines. The first electromagnetic valve is installed on the high-temperature-resistant pipelines. The electric heating rod is installed in the heating barrel through a bracket. The heat exchange liquid is stored in the heating barrel. The electric heating rod is turned on to heat the heat exchange liquid. The first electromagnetic valve controls whether the heat exchange liquid enters the cavities of the heat exchange protrusions and controls the delivery of the heat exchange liquid in a single path, thereby improving the practicality of the device.

[0009] Preferably, the pushing device comprises a second electromagnetic valve, a pushing pipe, an electric cylinder, a piston and a third electromagnetic valve, the left part of the rear end face of the connecting plate is provided with the pushing pipe, the input end of the pushing pipe is communicated with the right part of the inner chamber of the heat exchange protrusion through the second electromagnetic valve and a plurality of groups of high-temperature resistant pipes, the lower end face of the pushing pipe is provided with the electric cylinder, the moving end of the electric cylinder extends to the inside of the pushing pipe through the lower end face of the pushing pipe, the moving end of the electric cylinder is provided with the piston, the middle part of the rear end face of the pushing pipe is provided with the third electromagnetic valve, the input end of the third electromagnetic valve is communicated with the lower part of the pushing pipe, the output end of the third electromagnetic valve is communicated with the upper part of the pushing pipe, the top of the pushing pipe is communicated with the inside of the heating barrel through a pipe, and the output end of the second electromagnetic valve is communicated with the lower part in the pushing pipe; the liquid in the pushing pipe is pushed into the heating barrel by controlling the elongation of the electric cylinder, and then the driving process of the liquid flow is completed, the contraction process of the electric cylinder is matched by controlling the opening and closing of the third electromagnetic valve and the second electromagnetic valve, the process of supplementing the backflow liquid into the inside of the pushing pipe is completed, and thus the circulation driving of the liquid is completed, and the practicability of the device is improved.

[0010] Preferably, the filtering device comprises a three-way pipe, a collecting pipe, a speed reducer, a spiral blade and a filter screen, the input end of the third electromagnetic valve is communicated with the inside of the pushing pipe through the three-way pipe, the lower input end of the three-way pipe is connected with the collecting pipe, the spiral blade is vertically arranged in the collecting pipe, the speed reducer is arranged on the lower end face of the collecting pipe, the output end of the speed reducer is connected with the spiral blade, and the three-way pipe is provided with the filter screen in the end connected with the third electromagnetic valve; the impurities in the liquid are filtered through the collecting pipe, the spiral blade is driven to rotate through the speed reducer, the impurities are downwardly conveyed to the bottom of the collecting pipe, the impurities are prevented from entering the pipeline again, and the practicability of the device is improved.

[0011] Preferably, the filtering device comprises a three-way pipe, a collecting pipe, a speed reducer, a spiral blade and a filter screen, the input end of the third electromagnetic valve is communicated with the inside of the pushing pipe through the three-way pipe, the lower input end of the three-way pipe is connected with the collecting pipe, the spiral blade is vertically arranged in the collecting pipe, the speed reducer is arranged on the lower end face of the collecting pipe, the output end of the speed reducer is connected with the spiral blade, and the three-way pipe is provided with the filter screen in the end connected with the third electromagnetic valve; the impurities in the liquid are filtered through the collecting pipe, the spiral blade is driven to rotate through the speed reducer, the impurities are downwardly conveyed to the bottom of the collecting pipe, the impurities are prevented from entering the pipeline again, and the practicability of the device is improved.

[0012] Preferably, the filtering device comprises a three-way pipe, a collecting pipe, a speed reducer, a spiral blade and a filter screen, the input end of the third electromagnetic valve is communicated with the inside of the pushing pipe through the three-way pipe, the lower input end of the three-way pipe is connected with the collecting pipe, the spiral blade is vertically arranged in the collecting pipe, the speed reducer is arranged on the lower end face of the collecting pipe, the output end of the speed reducer is connected with the spiral blade, and the three-way pipe is provided with the filter screen in the end connected with the third electromagnetic valve; the impurities in the liquid are filtered through the collecting pipe, the spiral blade is driven to rotate through the speed reducer, the impurities are downwardly conveyed to the bottom of the collecting pipe, the impurities are prevented from entering the pipeline again, and the practicability of the device is improved.

[0013] Compared with the prior art, the beneficial effects of the utility model are that: the heat exchange device is connected with the movable mold, the effective heat exchange area of the movable mold is increased, the control efficiency of the temperature of the movable mold main body is improved, the heat exchange liquid flow is driven through the pushing device, the impurities in the heat exchange liquid are screened out through the filtering device, and the practicability of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is the first axis measurement structure schematic view of the utility model;

[0015] Figure 2 is the second axis measurement structure schematic view of the utility model;

[0016] Figure 3 is the first cross section structure schematic view of the utility model;

[0017] Figure 4 is the second cross section structure schematic view of the utility model;

[0018] Figure 5 is the third cross section structure schematic view of the utility model;

[0019] In the drawing, mark: 1, die casting machine main body;2, fixed mould;3, moving mould;4, feeding pipe;5, feeding hopper;6, first hydraulic cylinder;7, mounting plate;8, heat exchange groove;9, second hydraulic cylinder;10, connecting plate;11, heat exchange protrusion;12, heating barrel;13, first electromagnetic valve;14, electric heating rod;15, second electromagnetic valve;16, push pipe;17, electric cylinder;18, piston;19, third electromagnetic valve;20, tee;21, collecting pipe;22, speed reducer motor;23, helical blade;24, filter screen;25, intercept ring;26, fourth electromagnetic valve;27, pressure sensor. DETAILED DESCRIPTION

[0020] In order to facilitate understanding the utility model, below will be with reference to relevant drawings more comprehensive description of the utility model.The utility model can be realized in many different forms, and is not limited to the embodiments described herein.Contrarily, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0021] Embodiment

[0022] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The push device is installed on the heat exchange device, and the filter device is connected with the push device.

[0023] Firstly, the electric cylinder 17 is controlled to extend, the third electromagnetic valve 19 is closed and the second electromagnetic valve 15 is opened, so that the liquid in the upper part of the pushing pipe 16 is pushed into the heating barrel 12 and the liquid in the multiple sets of heat exchange protrusions 11 is returned to the inside of the pushing pipe 16, then the second electromagnetic valve 15 is closed, the third electromagnetic valve 19 is opened and the electric cylinder 17 is controlled to retract, so that the liquid in the lower part of the pushing pipe 16 is transported to the upper part of the pushing pipe 16, the electric heating rod 14 is opened to heat the heat exchange liquid, the first electromagnetic valve 13 is controlled to control whether the heat exchange liquid enters the cavity of the heat exchange protrusion 11, and the heat exchange liquid is controlled to be transported in a single way, so that the heating process of the movable mold 3 is completed, then the second hydraulic cylinder 9 is controlled to extend to press the movable mold 3 to the fixed mold 2, and the die casting raw material is added into the feeding pipe 4 from the feeding hopper 5, then the first hydraulic cylinder 6 is controlled to extend to push the raw material into the space between the fixed mold 2 and the movable mold 3.

[0024] The heat exchange device comprises a mounting plate 7, heat exchange grooves 8, a second hydraulic cylinder 9, a connecting plate 10 and heat exchange protrusions 11, the movable mold 3 is fixed to the front end face of the mounting plate 7, a plurality of heat exchange grooves 8 are arranged on the rear end face of the mounting plate 7, the second hydraulic cylinder 9 is arranged on the rear part of the main body of the die casting machine main body 1, the connecting plate 10 is arranged on the moving end of the second hydraulic cylinder 9, a plurality of heat exchange protrusions 11 are arranged on the front end face of the connecting plate 10 and correspond to the positions of the plurality of heat exchange grooves 8, and the mounting plate 7 and the connecting plate 10 are connected by bolts.

[0025] The heat exchange device further comprises a heating barrel 12, a first electromagnetic valve 13 and an electric heating rod 14, the heating barrel 12 is arranged on the end face right part of the connecting plate 10, the inside of the multiple heat exchange protrusions 11 is a cavity, the heating barrel 12 is in communication with the inside of the multiple heat exchange protrusions 11 through multiple high-temperature-resistant pipelines, the first electromagnetic valve 13 is arranged on the high-temperature-resistant pipeline, and the electric heating rod 14 is arranged in the heating barrel 12 through a support.

[0026] The pushing device comprises a second electromagnetic valve 15, a pushing pipe 16, an electric cylinder 17, a piston 18 and a third electromagnetic valve 19, the pushing pipe 16 is arranged on the rear end face left part of the connecting plate 10, the input end of the pushing pipe 16 is in communication with the right part of the cavity in the heat exchange protrusion 11 through the second electromagnetic valve 15 and multiple high-temperature-resistant pipelines, the electric cylinder 17 is arranged on the lower end face of the pushing pipe 16, the moving end of the electric cylinder 17 extends to the inside of the pushing pipe 16 through the lower end face of the pushing pipe 16, the piston 18 is arranged on the moving end of the electric cylinder 17, the third electromagnetic valve 19 is arranged on the rear end face middle part of the pushing pipe 16, the input end of the third electromagnetic valve 19 is in communication with the lower part of the pushing pipe 16, the output end of the third electromagnetic valve 19 is in communication with the upper part of the pushing pipe 16, the top of the pushing pipe 16 is in communication with the inside of the heating barrel 12 through a pipeline, and the output end of the second electromagnetic valve 15 is in communication with the lower part in the pushing pipe 16.

[0027] The filtering device comprises a tee pipe 20, a collecting pipe 21, a speed reducer motor 22, a spiral blade 23 and a filter screen 24, the input end of the third electromagnetic valve 19 is communicated with the inside of the pushing pipe 16 through the tee pipe 20, the lower input end of the tee pipe 20 is connected with the collecting pipe 21, the spiral blade 23 is vertically installed in the collecting pipe 21, the speed reducer motor 22 is installed on the lower end surface of the collecting pipe 21, the output end of the speed reducer motor 22 is connected with the spiral blade 23, and the filter screen 24 is installed in the end, connected with the third electromagnetic valve 19, of the tee pipe 20;

[0028] The filtering device comprises a tee pipe 20, a collecting pipe 21, a speed reducer motor 22, a spiral blade 23 and a filter screen 24, the input end of the third electromagnetic valve 19 is communicated with the inside of the pushing pipe 16 through the tee pipe 20, the lower input end of the tee pipe 20 is connected with the collecting pipe 21, the spiral blade 23 is vertically installed in the collecting pipe 21, the speed reducer motor 22 is installed on the lower end surface of the collecting pipe 21, the output end of the speed reducer motor 22 is connected with the spiral blade 23, and the filter screen 24 is installed in the end, connected with the third electromagnetic valve 19, of the tee pipe 20;

[0029] The filtering device comprises a tee pipe 20, a collecting pipe 21, a speed reducer motor 22, a spiral blade 23 and a filter screen 24, the input end of the third electromagnetic valve 19 is communicated with the inside of the pushing pipe 16 through the tee pipe 20, the lower input end of the tee pipe 20 is connected with the collecting pipe 21, the spiral blade 23 is vertically installed in the collecting pipe 21, the speed reducer motor 22 is installed on the lower end surface of the collecting pipe 21, the output end of the speed reducer motor 22 is connected with the spiral blade 23, and the filter screen 24 is installed in the end, connected with the third electromagnetic valve 19, of the tee pipe 20;

[0030] The filtering device comprises a tee pipe 20, a collecting pipe 21, a speed reducer motor 22, a spiral blade 23 and a filter screen 24, the input end of the third electromagnetic valve 19 is communicated with the inside of the pushing pipe 16 through the tee pipe 20, the lower input end of the tee pipe 20 is connected with the collecting pipe 21, the spiral blade 23 is vertically installed in the collecting pipe 21, the speed reducer motor 22 is installed on the lower end surface of the collecting pipe 21, the output end of the speed reducer motor 22 is connected with the spiral blade 23, and the filter screen 24 is installed in the end, connected with the third electromagnetic valve 19, of the tee pipe 20;

[0031] As shown in Figures 1 to 5 The filtering device comprises a tee pipe 20, a collecting pipe 21, a speed reducer motor 22, a spiral blade 23 and a filter screen 24, the input end of the third electromagnetic valve 19 is communicated with the inside of the pushing pipe 16 through the tee pipe 20, the lower input end of the tee pipe 20 is connected with the collecting pipe 21, the spiral blade 23 is vertically installed in the collecting pipe 21, the speed reducer motor 22 is installed on the lower end surface of the collecting pipe 21, the output end of the speed reducer motor 22 is connected with the spiral blade 23, and the filter screen 24 is installed in the end, connected with the third electromagnetic valve 19, of the tee pipe 20;

[0032] The filtering device comprises a tee pipe 20, a collecting pipe 21, a speed reducer motor 22, a spiral blade 23 and a filter screen 24, the input end of the third electromagnetic valve 19 is communicated with the inside of the pushing pipe 16 through the tee pipe 20, the lower input end of the tee pipe 20 is connected with the collecting pipe 21, the spiral blade 23 is vertically installed in the collecting pipe 21, the speed reducer motor 22 is installed on the lower end surface of the collecting pipe 21, the output end of the speed reducer motor 22 is connected with the spiral blade 23, and the filter screen 24 is installed in the end, connected with the third electromagnetic valve 19, of the tee pipe 20;

[0033] The above merely is the preferred implementation manner of the present application, and it should be noted that, for the ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present application.

Claims

1. A mold heating device in a casting process, comprising a die casting machine body (1), a fixed mold (2), a moving mold (3), a feeding pipe (4), a feeding hopper (5) and a first hydraulic cylinder (6), the fixed mold (2) is installed in the die casting machine body (1), the moving mold (3) is located at the rear side of the fixed mold (2), the front end face lower part of the die casting machine body (1) is provided with the feeding pipe (4), the front end face of the feeding pipe (4) is provided with the first hydraulic cylinder (6), the moving end of the first hydraulic cylinder (6) is connected with a piston, the front part of the upper end face of the feeding pipe (4) is provided with the feeding hopper (5), and the output end of the feeding pipe (4) is communicated with the gap between the fixed mold (2) and the moving mold (3); characterized in that, The application relates to a die-casting machine, which comprises a heat exchange device, a pushing device and a filtering device.

2. A mold heating apparatus for a casting process as defined in claim 1, wherein The heat exchange device comprises a mounting plate (7), heat exchange grooves (8), a second hydraulic cylinder (9), a connecting plate (10) and heat exchange protrusions (11), the moving die (3) is fixed to the front end face of the mounting plate (7), a plurality of groups of the heat exchange grooves (8) are arranged on the rear end face of the mounting plate (7), the second hydraulic cylinder (9) is arranged on the rear part of the main body of the die-casting machine (1), the connecting plate (10) is arranged on the moving end of the second hydraulic cylinder (9), a plurality of groups of the heat exchange protrusions (11) are arranged on the front end face of the connecting plate (10) and correspond to the positions of the plurality of groups of the heat exchange grooves (8), and the mounting plate (7) is connected with the connecting plate (10) through bolts.

3. A mold heating apparatus for a casting process as defined in claim 2, wherein The application further comprises a heating barrel (12), a first electromagnetic valve (13) and an electric heating rod (14), the heating barrel (12) is arranged on the right part of the end face of the connecting plate (10), the plurality of groups of the heat exchange protrusions (11) are hollow, the heating barrel (12) is communicated with the interiors of the plurality of groups of the heat exchange protrusions (11) through a plurality of groups of high-temperature-resistant pipelines, the first electromagnetic valve (13) is arranged on the high-temperature-resistant pipelines, and the electric heating rod (14) is arranged in the heating barrel (12) through a support.

4. A mold heating apparatus for a casting process as defined in claim 3, wherein The pushing device comprises a second electromagnetic valve (15), a pushing pipe (16), an electric cylinder (17), a piston (18) and a third electromagnetic valve (19), the pushing pipe (16) is arranged on the left part of the rear end face of the connecting plate (10), the input end of the pushing pipe (16) is communicated with the right part of the inner chamber of the heat exchange protrusion (11) through the second electromagnetic valve (15) and a plurality of groups of high-temperature-resistant pipelines, the lower end face of the pushing pipe (16) is provided with the electric cylinder (17), the moving end of the electric cylinder (17) extends to the interior of the pushing pipe (16) through the lower end face of the pushing pipe (16), the moving end of the electric cylinder (17) is provided with the piston (18), the third electromagnetic valve (19) is arranged on the middle part of the rear end face of the pushing pipe (16), the input end of the third electromagnetic valve (19) is communicated with the lower part of the pushing pipe (16), the output end of the third electromagnetic valve (19) is communicated with the upper part of the pushing pipe (16), the top of the pushing pipe (16) is communicated with the interior of the heating barrel (12) through a pipeline, and the output end of the second electromagnetic valve (15) is communicated with the lower part of the pushing pipe (16).

5. A mold heating apparatus for use in a casting process as defined in claim 4, wherein The filtering device comprises a three-way pipe (20), a collecting pipe (21), a speed-reducing motor (22), a spiral blade (23) and a filtering screen (24), the input end of the third electromagnetic valve (19) is communicated with the interior of the pushing pipe (16) through the three-way pipe (20), the lower input end of the three-way pipe (20) is connected with the collecting pipe (21), the spiral blade (23) is vertically arranged in the collecting pipe (21), the lower end face of the collecting pipe (21) is provided with the speed-reducing motor (22), the output end of the speed-reducing motor (22) is connected with the spiral blade (23), and the filtering screen (24) is arranged in the end of the three-way pipe (20) connected with the third electromagnetic valve (19).

6. A mold heating apparatus for a casting process as defined in claim 5, wherein It also comprises an intercept ring (25) and a fourth electromagnetic valve (26), the intercept ring (25) is installed on the lower inner side of the collecting pipe (21), the lower side of the collecting pipe (21) is provided with a sewage outlet, and the fourth electromagnetic valve (26) is installed on the sewage outlet.

7. A mold heating apparatus for a casting process as defined in claim 6, wherein It also comprises a pressure sensor (27), and the moving end of the electric cylinder (17) is connected with the piston (18) through the pressure sensor (27).

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