Vacuumizing device for sand box pouring

Abstract

The utility model provides a vacuumizing device for sand box pouring, and relates to the technical field of sand box pouring, the vacuumizing device comprises a vacuum main pipeline, multiple groups of vacuum branch pipelines are arranged at the upper end of the vacuum main pipeline, and one or more groups of vacuum nozzles are arranged at the two ends of each vacuum branch pipeline respectively; a main pneumatic butterfly valve is arranged at the joint of the vacuum branch pipeline and the vacuum main pipeline, and a branch pipeline pneumatic butterfly valve is arranged at the joint of the vacuum nozzle and the vacuum branch pipeline; vacuum pressure gauges are mounted at the tops of the vacuum branch pipelines; the multiple sets of vacuum branch pipelines are vertically installed in the middle of the upper end of the vacuum main pipeline and distributed at equal intervals. By arranging the main pneumatic butterfly valve, the branch pneumatic butterfly valves and the vacuum pressure gauge, the vacuum pressure is displayed in real time through the vacuum pressure gauge in the using process, so that the required pressure and the pressure control time can be controlled through the main pneumatic butterfly valve and the branch pneumatic butterfly valves, the vacuum waste is reduced, and the intelligent control is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sand box pouring technology field, concretely is a sand box pouring is drawn vacuum device. BACKGROUND

[0002] In V method casting, when the molding sand in the sand box is through a series of processes such as jolt compaction and vacuum drawing, the model is obtained and waits for pouring, after the molding sand in the sand box is molded, is transferred to the pouring station and pours, each pouring station is placed with a pair of sand boxes, and each sand box can be drawn vacuum by multiple vacuum pipes according to different casting and process requirements.

[0003] The traditional vacuum system is manually opened valve to draw vacuum for the sand box, but since the vacuum for all sand boxes from pouring to cooling is the same pressure, this way can easily cause vacuum waste.

[0004] To solve the above problems, a sand box pouring vacuum device is provided to solve the above problems. UTILITY MODEL CONTENTS

[0005] To solve the problems in the background art, the utility model provides a sand box pouring vacuum device.

[0006] To achieve the above object, the utility model takes the technical scheme that:

[0007] A sand box pouring vacuum device, comprising a vacuum main pipeline, the upper end of the vacuum main pipeline is provided with multiple groups of vacuum branch pipelines, and the two ends of the vacuum branch pipeline are respectively provided with one group or multiple groups of vacuum nozzles; a total pneumatic butterfly valve is arranged at the connection between the vacuum branch pipeline and the vacuum main pipeline, and a branch pipeline pneumatic butterfly valve is arranged at the connection between the vacuum nozzle and the vacuum branch pipeline.

[0008] Preferably, a vacuum pressure gauge is installed at the top of the vacuum branch pipeline.

[0009] Preferably, multiple groups of the vacuum branch pipelines are vertically installed in the upper end middle part of the vacuum main pipeline, and the multiple groups of the vacuum branch pipelines are equidistantly distributed.

[0010] Compared with the prior art, the utility model has the beneficial effects that:

[0011] In the scheme, by arranging the total pneumatic butterfly valve and the branch pipeline pneumatic butterfly valve, the vacuum pressure of the sand box can be controlled at any time through the total pneumatic butterfly valve and the branch pipeline pneumatic butterfly valve according to the different castings and the different vacuum losses in the pouring and cooling process, and the vacuum drawing time can also be adjusted according to the different casting pouring modes and the different pressure maintaining times, so as to reduce the vacuum waste and realize intelligent management. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structure schematic view of the utility model;

[0013] Figure 2 It is a structure schematic view of the utility model Figure 1 .

[0014] In the figure: 1, vacuum main pipeline; 2, vacuum branch pipeline; 3, total pneumatic butterfly valve; 4, vacuum nozzle; 5, branch pipeline pneumatic butterfly valve; 6, vacuum pressure gauge. Specific implementation

[0015] The technical scheme in the embodiment of the application is to solve the problems in the foregoing background art, and the general idea is as follows:

[0016] Embodiment: refer to Figure 1 - Figure 2 The vacuum device for sand box pouring of the embodiment includes vacuum main pipeline 1, the upper end of vacuum main pipeline 1 is provided with multiple groups of vacuum branch pipelines 2, and the two ends of each vacuum branch pipeline 2 are respectively provided with one or more groups of vacuum nozzles 4; a total pneumatic butterfly valve 3 is arranged at the connection between each vacuum branch pipeline 2 and vacuum main pipeline 1, and a branch pipeline pneumatic butterfly valve 5 is arranged at the connection between each vacuum nozzle 4 and vacuum branch pipeline 2; a vacuum pressure gauge 6 is installed at the top of each vacuum branch pipeline 2.

[0017] The total pneumatic butterfly valve 3 can be used to switch the vacuum of each vacuum branch pipeline 2, the branch pipeline pneumatic butterfly valve 5 can be used to switch the vacuum of each vacuum nozzle 4, and the vacuum pressure gauge 6 can be used to display the vacuum pressure in real time.

[0018] In some examples, the multiple groups of vacuum branch pipelines 2 are vertically installed in the upper middle part of vacuum main pipeline 1, and are equidistantly distributed between the multiple groups of vacuum branch pipelines 2, so that the sand boxes at multiple work stations can be simultaneously subjected to vacuum work.

[0019] In some examples, the total pneumatic butterfly valve 3 and the branch pipeline pneumatic butterfly valve 5 can be equipped with a PLC control system to realize intelligent control switching and size adjustment.

[0020] The working principle of the utility model is as follows:

[0021] The utility model is characterized in that: a vacuum branch pipeline 2 is installed at each pouring work station of vacuum main pipeline 1, a total pneumatic butterfly valve 3 is arranged to control the switching of each vacuum branch pipeline 2 at each work station, a branch pipeline pneumatic butterfly valve 5 is arranged on each vacuum branch pipeline 2 to switch the vacuum nozzle 4, in the use process, the branch pipeline pneumatic butterfly valve 5 is used to control the switching of the vacuum nozzle 4, and the signal given by the vacuum pressure gauge 6 is used to control the size of the vacuum pressure.

[0022] The utility model discloses a total pneumatic butterfly valve 3 and branch pipe pneumatic butterfly valve 5 are provided with, can according to the different of casting and the different of vacuum loss in pouring and cooling process, and the vacuum pressure of sand box is controlled through total pneumatic butterfly valve 3 and branch pipe pneumatic butterfly valve 5 at any time, can also be adjusted to draw vacuum time according to the different of casting pouring mode and the different of pressure maintaining time, reduces vacuum waste, realizes intelligent management.

[0023] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, various changes and improvements can be made to the utility model, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A vacuum device for sand casting, characterized in that, It includes a vacuum main pipeline (1), and the upper end of the vacuum main pipeline (1) is provided with multiple sets of vacuum branch pipelines (2), and one or more sets of vacuum nozzles (4) are respectively provided at both ends of the vacuum branch pipelines (2). A main pneumatic butterfly valve (3) is provided at the connection between the vacuum branch pipeline (2) and the main vacuum pipeline (1), and a branch pneumatic butterfly valve (5) is provided at the connection between the vacuum nozzle (4) and the vacuum branch pipeline (2).

2. The vacuum device for sand casting according to claim 1, characterized in that, A vacuum pressure gauge (6) is installed on the top of the vacuum sub-pipe (2).

3. The vacuum device for sand casting according to claim 2, characterized in that, Multiple sets of vacuum sub-pipes (2) are installed vertically in the middle of the upper end of the main vacuum pipeline (1), and the multiple sets of vacuum sub-pipes (2) are distributed at equal intervals.

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