Horizontal screw pushing device for casting sand blasting

Abstract

The utility model relates to a kind of horizontal spiral pushing device for casting sand shower, including spiral pushing motor speed reducer and sand collecting hopper, sand collecting hopper is set in the upper position of spiral pushing motor speed reducer;Spiral pushing shaft of spiral pushing motor speed reducer side is set in the lower position of the outlet of sand collecting hopper;The lower portion of sand collecting hopper is equipped with multiple sand distribution covers, sand distribution cover is equipped with sand distribution partition between, and sand distribution partition is fixed on the inner side wall of the lower portion of sand collecting hopper.Sand distribution cover is connected in an integral manner with two side inclines, top is connected on the side wall of sand distribution partition, and bottom is set above spiral pushing shaft.The utility model device is through the structure and size setting of multiple angles multiple levels, can effectively improve the horizontal spiral pushing effect of casting sand shower, improve the efficiency of horizontal spiral pushing, and through suitable sand supply mode, improve the feeding uniformity effect of casting sand shower in horizontal spiral pushing process, reduce the loss to equipment, improve the casting sand feeding effect.

Description

Technical Field

[0001] This utility model belongs to the field of casting technology, specifically relating to a horizontal spiral pushing device for casting sand rinsing. Background Technology

[0002] Sand filling, a common process in the foundry industry, involves filling a sand box with molding sand. This process requires uniformly, loosely, and without segregation, filling every corner of the sand box, especially the complex grooves and depths of the mold or die. A horizontal spiral conveyor is often indispensable in this process. Firstly, the molding sand is horizontally transported from one point to another, requiring horizontal pushing. Secondly, molding sand requires mixing, and the conveying process helps to achieve this mixing effect. For molding sand materials with a certain temperature, the horizontal spiral conveyor also helps to cool and mix them.

[0003] In ordinary horizontal spiral conveying devices, the conventional spiral conveying device is mostly used. The molding sand directly enters the cavity of the horizontal spiral conveying device, which can easily cause a large area of ​​molding sand to be pushed. This not only easily causes blockage, but may also result in a large amount of molding sand being conveyed. Therefore, it is necessary to adopt appropriate methods to improve this. Utility Model Content

[0004] The purpose of this utility model is to provide a horizontal spiral pushing device for casting sand rinsing, so as to better improve the horizontal spiral pushing effect and increase the efficiency of horizontal spiral pushing, and improve the uniformity of material supply during the casting sand rinsing process by using a suitable molding sand supply method.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows.

[0006] A horizontal spiral pushing device for casting sand rinsing includes a spiral pushing motor reducer and a sand collecting hopper. The sand collecting hopper is positioned above the spiral pushing motor reducer. A spiral pushing shaft on one side of the spiral pushing motor reducer is positioned below the outlet of the sand collecting hopper. The lower part of the sand collecting hopper is provided with multiple sand separating covers, and sand separating baffles are provided between the sand separating covers. The sand separating baffles are fixed to the inner sidewall of the lower part of the sand collecting hopper.

[0007] Furthermore, the sand separating cover adopts a method of connecting the two inclined surfaces into one piece, with the top connected to the side wall of the sand separating partition and the bottom located above the spiral pushing shaft.

[0008] Furthermore, the sand-separating baffle is set at a distance 1.5-2 times higher than the top of the sand-separating cover.

[0009] Furthermore, a spiral pushing blade is fixedly provided on the side wall of the spiral pushing shaft, and the spiral pushing blade is inclined at an angle of 30-60 degrees to the spiral pushing shaft.

[0010] Furthermore, a spiral pushing cavity is provided on the outside of the spiral pushing shaft, and the distance between the spiral pushing blade and the inner sidewall of the spiral pushing cavity is 5-10mm.

[0011] Furthermore, the top of the sand hopper is provided with a sand hopper fixing frame, and the sand hopper fixing frame is provided with multiple screw fixing holes for easy fixing and installation of the sand hopper.

[0012] Furthermore, the sand collection hopper adopts a design where three side walls are inclined surfaces, and the side closest to the sand outlet is flat.

[0013] Furthermore, a sand outlet is provided at the other end of the spiral push shaft away from the spiral push motor reducer, and a sand outlet baffle is provided on the side of the sand outlet. The sand outlet and the sand outlet baffle are fixed by an outlet fixing frame.

[0014] Furthermore, the lower part of the sand distribution hood is provided with a sand drop gap, which helps the molding sand to fall onto the spiral pusher blades on the spiral pusher shaft and be transported.

[0015] Furthermore, the gap width between the falling sand particles is 5-10mm.

[0016] The beneficial effects of this utility model are as follows: This utility model device has the following advantages and effects: (1) In this device, multiple sand-distributing covers are provided at the bottom of the sand collecting hopper, and sand-distributing baffles are provided between the sand-distributing covers. The sand-distributing baffles are fixed to the inner side wall of the bottom of the sand collecting hopper. This structure helps the casting sand to fall orderly into the spiral push shaft. In particular, the sand-distributing covers are connected by two inclined surfaces, with the top connected to the side wall of the sand-distributing baffle and the bottom located above the spiral push shaft, forming an inclined shape on both sides, which further facilitates the sliding of the casting sand. At the same time, the sand-distributing baffles are set 1.5-2 times higher than the top of the sand-distributing covers, which has the effect of separating the sand, reducing the weight of the sand falling into the spiral push shaft at one time, avoiding blockage and damage to the equipment, and improving the service life of the equipment.

[0017] (2) In this device, a spiral pushing blade is fixed on the side wall of the spiral pushing shaft. The spiral pushing blade is inclined at an angle of 30-60 degrees to the spiral pushing shaft. Moreover, the distance between the spiral pushing blade and the inner side wall of the spiral pushing cavity is 5-10mm, which helps the molding sand to be pushed forward better after falling in, avoids blockage, and also avoids the problem of excessive horizontal spiral conveying pressure caused by excessive gap.

[0018] (3) In this device, the top of the sand collection hopper is provided with a sand collection hopper fixing frame, and the sand collection hopper fixing frame is provided with multiple screw fixing holes, which facilitates the fixing and installation of the sand collection hopper, reduces the vibration during the sand conveying process, and improves the stability during the sand conveying process; at the same time, the sand collection hopper adopts a method in which three side walls are inclined and the side near the sand outlet is flat, which helps the sand to slowly fall into the bottom along the inclined surface, and the sand outlet can be easily fixed in a flat manner, thus improving the sand discharge stability.

[0019] (4) In this device, a sand discharge baffle is provided on the side of the sand outlet. The sand outlet and the sand discharge baffle are fixed by an outlet fixing frame. This setting facilitates the horizontal spiral pushing of molding sand and its discharge from the outlet. The gap of the sand outlet can be adjusted as needed, which helps to achieve a better uniform sand discharge effect in casting. The setting of the sand discharge baffle prevents dust from being blown out of the molding sand outlet and reduces the splashing problem in the sand discharge.

[0020] (5) In this device, the lower part of the sand distribution cover is provided with a sand drop gap, which helps the molding sand to fall into the spiral push blades on the spiral push shaft and be conveyed. The width of the sand drop gap is 5-10mm. The width is set according to the sand drop requirements and used as needed.

[0021] This device, through its multi-angle and multi-layered structure and size settings, can effectively improve the horizontal spiral pushing effect of casting sand immersion, enhance the efficiency of horizontal spiral pushing, and improve the uniformity of casting sand immersion during the horizontal spiral pushing process by using a suitable molding sand supply method, thereby reducing equipment wear and improving the casting sand immersion feeding effect. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the device used in the embodiments of this utility model.

[0023] Figure 2 This is a top view of the device used in the embodiments of this utility model.

[0024] Figure 3 This is a side view of the device used in the embodiments of this utility model.

[0025] Figure 4 yes Figure 3 A schematic diagram of the structure at point AA.

[0026] Figure 5 yes Figure 4 A magnified schematic diagram of the structure at point B in the diagram.

[0027] The markings in the diagram are as follows: 1. Spiral push motor reducer; 2. Sand collecting hopper; 3. Sand separating cover; 4. Sand separating baffle; 5. Spiral push cavity; 6. Sand collecting hopper fixing frame; 7. Spiral push shaft; 8. Spiral push blades; 9. Outlet fixing frame; 10. Sand outlet; 11. Sand outlet baffle; 12. Sand drop gap. Detailed Implementation

[0028] The specific embodiments of this utility model are described below with reference to the accompanying drawings to provide a better understanding of this utility model.

[0029] like Figures 1 to 5 The horizontal spiral conveying device for casting sand flushing shown includes a spiral conveying motor reducer 1 and a sand collecting hopper 2, with the hopper 2 positioned above the reducer 1. A spiral conveying shaft 7 on one side of the reducer 1 is positioned below the outlet of the hopper 2, facilitating the flow of casting sand from the bottom of the hopper 2 onto the shaft 7. The lower part of the hopper 2 has multiple sand-distributing covers 3, with sand-distributing baffles 4 between them, fixed to the lower inner wall of the hopper 2. This structure helps the casting sand fall orderly onto the shaft 7. In particular, the sand-distributing covers 3 are connected as a single unit with inclined sides, the top connected to the side wall of the baffle 4, and the bottom positioned above the shaft 7, creating an inclined configuration that further facilitates the sliding of the casting sand. The baffles 4 are positioned 1.5-2 times higher than the top of the sand-distributing covers 3, effectively separating the sand and reducing the weight of the sand falling into the shaft 7 at once, thus preventing blockage.

[0030] A spiral pushing blade 8 is fixedly provided on the side wall of the spiral pushing shaft 7. The spiral pushing blade 8 is inclined at an angle of 30-60 degrees to the spiral pushing shaft 7. A spiral pushing cavity 5 is provided on the outside of the spiral pushing shaft 7. The distance between the spiral pushing blade 8 and the inner side wall of the spiral pushing cavity 5 is 5-10mm, which helps to push the molding sand forward better after it falls in.

[0031] The top of the sand collecting hopper 2 is provided with a sand collecting hopper fixing frame 6, which has multiple screw fixing holes to facilitate the fixing and installation of the sand collecting hopper 2, reduce vibration during the molding sand conveying process, and improve the stability during the molding sand conveying process.

[0032] The sand collection hopper 2 adopts a design with three inclined side walls and a flat side near the sand outlet, which helps the molding sand to slowly fall to the bottom along the inclined surface and is conveniently installed and fixed in a flat manner at the sand outlet, thus improving the stability of sand discharge.

[0033] A sand outlet 10 is located at the other end of the spiral push shaft 7 away from the spiral push motor reducer 1. A sand outlet baffle 11 is provided on the side of the sand outlet 10. The sand outlet 10 and the sand outlet baffle 11 are fixed by the outlet fixing frame 9. This arrangement facilitates the horizontal spiral push of molding sand and its discharge from the outlet. The gap of the sand outlet 10 can be adjusted as needed, which helps to achieve a better uniform sand shedding effect in casting.

[0034] The lower part of the sand distribution cover 3 is provided with a sand drop gap 12, which helps the molding sand to fall onto the spiral pusher blades 8 on the spiral pusher shaft 7 and be conveyed. The width of the sand drop gap 12 is 5-10mm, and its width is set according to the sand drop requirements.

[0035] When the entire device is in use, the molding sand that needs to be transported horizontally enters from the sand collection hopper 2, passes through the sand separating baffle 4 and the sand separating cover 3, and then enters the spiral pushing blades 8 on the spiral pushing shaft 7 through the sand falling gap 12. As the spiral pushing motor reducer 1 works, it drives the spiral pushing shaft 7 to rotate, thereby causing the spiral pushing blades 8 fixed on the spiral pushing shaft 7 to rotate, thus pushing the molding sand forward and gradually pushing it towards the outlet, where the sand falls off.

[0036] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A horizontal spiral pushing device for casting sand rinsing, comprising a spiral pushing motor reducer (1) and a sand collecting hopper (2), wherein the sand collecting hopper (2) is positioned above the spiral pushing motor reducer (1); a spiral pushing shaft (7) on one side of the spiral pushing motor reducer (1) is positioned below the outlet of the sand collecting hopper (2); the lower part of the sand collecting hopper (2) is provided with a plurality of sand separating covers (3), and sand separating partitions (4) are provided between the sand separating covers (3), and the sand separating partitions (4) are fixed on the lower inner wall of the sand collecting hopper (2).

2. The horizontal spiral conveying device for casting sand rinsing according to claim 1, characterized in that: The sand separating cover (3) is connected in a way with two inclined sides, with the top connected to the side wall of the sand separating partition (4) and the bottom located above the spiral push shaft (7), forming an inclined shape on both sides.

3. The horizontal spiral conveying device for casting sand rinsing according to claim 1, characterized in that: The sand separating baffle (4) is set 1.5-2 times higher than the top of the sand separating cover (3).

4. The horizontal spiral conveying device for casting sand rinsing according to claim 1, characterized in that: The spiral pusher shaft (7) is fixedly provided with a spiral pusher blade (8) on its side wall. The spiral pusher blade (8) is inclined at an angle of 30-60 degrees to the spiral pusher shaft (7).

5. The horizontal spiral conveying device for casting sand rinsing according to claim 4, characterized in that: The spiral pushing shaft (7) is provided with a spiral pushing cavity (5) on its outside, and the distance between the spiral pushing blade (8) and the inner wall of the spiral pushing cavity (5) is 5-10mm.

6. The horizontal spiral conveying device for casting sand rinsing according to claim 1, characterized in that: The top of the sand collection hopper (2) is provided with a sand collection hopper fixing frame (6), and the sand collection hopper fixing frame (6) is provided with multiple screw fixing holes to facilitate the fixing and installation of the sand collection hopper (2).

7. The horizontal spiral conveying device for casting sand rinsing according to claim 1, characterized in that: The sand collecting hopper (2) is designed with three inclined sides and a flat side near the sand outlet.

8. The horizontal spiral conveying device for casting sand rinsing according to claim 1, characterized in that: The spiral push shaft (7) is provided with a sand outlet (10) at the other end away from the spiral push motor reducer (1). A sand outlet baffle (11) is provided on the side of the sand outlet (10). The sand outlet (10) and the sand outlet baffle (11) are fixed by an outlet fixing frame (9).

9. The horizontal spiral conveying device for casting sand rinsing according to claim 1, characterized in that: The lower part of the sand distribution cover (3) is provided with a sand drop gap (12).

10. The horizontal spiral conveying device for casting sand rinsing according to claim 9, characterized in that: The width of the sand drop gap (12) is 5-10mm.

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