Automatic sand adding device of precoated sand molding machine with anti-stockpiling structure

Abstract

The utility model discloses an automatic sand adding device of a precoated sand molding machine with an anti-stockpiling structure, which comprises a sand storage tank mounted at a feed port of the precoated sand molding machine. A motor is fixed to the right side of the sand storage tank through bolts, the bottom of the motor is in key connection with a sector gear, the outer end of the sector gear is meshed with a toothed bar, a sealing plate is fixed to the left end of the toothed bar, the toothed bar slides on the sand storage tank, and the sealing plate slides in the sand storage tank to form a sealing mechanism. The precoated sand molding machine automatic sand adding device with the anti-stacking structure is provided with the sealing plate, the motor drives the toothed bar to move, then the toothed bar moves to drive the sealing plate to move, the purpose of quantitative feeding of materials is achieved, then the automatic feeding function is achieved, stacking of the materials is avoided, and due to the fact that a mechanical mechanism is used, the labor intensity of workers is reduced. Therefore, the use is convenient.

Description

Technical Field

[0001] This utility model relates to the technical field of coated sand molding machines, specifically an automatic sand feeding device for coated sand molding machines equipped with an anti-stacking structure. Background Technology

[0002] Coated sand molding machines are mainly used to create sand molds using coated sand, which are then used to cast various metal parts. Coated sand is widely used in the casting field due to its excellent properties, such as high strength, high hardness, high wear resistance and high resistance to thermal cracking. To improve production efficiency, automatic sand feeding devices are required.

[0003] The existing automatic sand feeding device has a large amount of material accumulating inside the inlet. Because the bottom opening of the automatic sand feeding device is small, the material will accumulate. After the material accumulates, it will cause blockage at the bottom of the automatic sand feeding device, thus preventing the material from entering the inside of the coated sand molding machine in a timely manner.

[0004] To address the aforementioned shortcomings, the automatic sand feeding device for a coated sand molding machine, disclosed in CN213613995U, reduces the amount of sand stored at the discharge pipe by setting up a transfer box, thereby making it easier to close and open the control valve. Secondly, by setting up a receiving plate inside the transfer box, a cylinder is used to lift the receiving plate, causing the raw sand on the receiving plate to slide back to the bottom of the transfer box, thereby controlling the discharge amount of raw sand and preventing excessive discharge of raw sand.

[0005] In actual use, although the above-mentioned device achieves the purpose of automatic feeding through the control valve, the control valve requires electronic components for control. Because it is operated by electronic components, the failure rate is higher than that of a purely mechanical structure, which in turn requires regular maintenance and inspection, thus causing inconvenience in use.

[0006] Therefore, we proposed an automatic sand feeding device for a coated sand molding machine with an anti-stacking structure, which can effectively solve the above problems. Utility Model Content

[0007] The purpose of this utility model is to provide an automatic sand feeding device for a coated sand molding machine with an anti-stacking structure, so as to solve the problem mentioned in the background art that the control valves on the market currently require electronic components for control. Because they are operated by electronic components, the failure rate is higher than that of purely mechanical structures, which in turn requires regular maintenance and inspection, resulting in inconvenience in use.

[0008] To achieve the above objectives, this utility model provides the following technical solution: an automatic sand feeding device for a coated sand molding machine with an anti-stacking structure, including a sand storage tank, wherein the sand storage tank is installed at the feed inlet of the coated sand molding machine;

[0009] Also includes:

[0010] A motor is fixed to the right side of the sand storage tank by bolts, and a sector gear is keyed to the bottom of the motor. The outer end of the sector gear meshes with a rack. A sealing plate is fixed to the left end of the rack. The rack slides on the sand storage tank, and the sealing plate slides inside the sand storage tank to form a sealing mechanism.

[0011] Preferably, the bottom of the motor is connected to the bottom of the rotating rod via a first pulley set, and the rotating rod is connected to the outside of the sand storage tank via a bearing.

[0012] Preferably, the top of the rotating rod is connected to the middle of the rotating rod via a second pulley set, and the middle of the second pulley set penetrates the interior of the sand storage tank.

[0013] Preferably, the rotating rod is connected to the bracket via a bearing, and the bracket is fixed inside the sand storage tank, with the bottom of the rotating rod extending into the interior of the driven rod to form a limiting mechanism.

[0014] Preferably, the bottom of the driven rod is connected to a bracket located at the bottom of the sand storage tank via a bearing.

[0015] Preferably, stirring rods are fixed at equal intervals on the driven rod, and the stirring rods rotate inside the sand storage tank to form a stirring mechanism.

[0016] Preferably, the driven rod has an inclined groove at its bottom, and a support rod is nested and slidably mounted inside the inclined groove, and the support rod is fixed to a bracket located at the bottom of the sand storage tank.

[0017] Compared with the prior art, the beneficial effects of this utility model are: the automatic sand feeding device of the coated sand molding machine with anti-stacking structure is convenient to use and avoids material clumping. Automatic feeding can be carried out by moving the sealing plate, which facilitates use. Furthermore, the rotation of the stirring rod prevents material clumping inside the sand storage tank. The specific details are as follows:

[0018] (1) A sealing plate is provided. The motor drives the rack to move, which in turn drives the sealing plate to move, thereby achieving the purpose of quantitative material feeding and automatic feeding. Therefore, material accumulation is avoided, and the mechanical mechanism makes it convenient to use.

[0019] (2) A stirring rod is provided. The rotation of the motor drives the rotating rod to rotate, which in turn drives the stirring rod to rotate. The rotation of the stirring rod can agitate the material in the sand storage tank, thereby preventing the material from clumping.

[0020] (3) A driven rod is provided, which is connected to the bracket by a bearing through a rotating rod, and the bracket is fixed inside the sand storage tank. The bottom of the rotating rod extends into the interior of the driven rod to form a limiting mechanism, thereby allowing the driven rod to slide on the rotating rod, so that the stirring rod can move.

[0021] (4) A second pulley set is provided, which is connected to the middle of the rotating rod through the top of the rotating rod. The middle of the second pulley set penetrates the inside of the sand storage tank. The rotating rod can be driven to rotate through the second pulley set, which facilitates the stirring of the material by the stirring rod.

[0022] (5) An inclined groove is provided. An inclined groove is provided at the bottom of the driven rod, and a support rod is nested inside the inclined groove. The support rod is fixed on the bracket located at the bottom of the sand storage tank, so that the inclined groove can drive the driven rod to move through the support rod, thereby improving the stirring effect. Attached Figure Description

[0023] Figure 1 This is a front view structural diagram of the present invention;

[0024] Figure 2 This is a side view of the structure of this utility model;

[0025] Figure 3 This is a schematic diagram of the cross-sectional structure of the sand storage tank of this utility model;

[0026] Figure 4 This is a front view structural diagram of the sealing plate of this utility model;

[0027] Figure 5 This is a schematic diagram of the front section structure of the driven rod of this utility model;

[0028] Figure 6 This is a front view schematic diagram of the support rod of this utility model.

[0029] In the diagram: 1. Sand storage tank; 2. Motor; 3. Sector gear; 4. Gear rack; 5. Sealing plate; 6. First pulley set; 7. Rotating rod; 8. Second pulley set; 9. Rotating rod; 10. Support; 11. Driven rod; 12. Agitating rod; 13. Inclined groove; 14. Support rod. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example 1: This utility model solves the problem that existing control valves require electronic components for control, which leads to a higher failure rate than purely mechanical structures, necessitating regular maintenance and inspection, and causing inconvenience in use. The movable sealing plate 5 prevents material accumulation and is easy to use. The following is disclosed:

[0032] The sand storage tank 1 is installed at the feed inlet of the coated sand molding machine; it also includes: a motor 2 is fixed to the right side of the sand storage tank 1 by bolts, and a sector gear 3 is keyed to the bottom of the motor 2, and a rack 4 is meshed at the outer end of the sector gear 3, a sealing plate 5 is fixed to the left end of the rack 4, and the rack 4 slides on the sand storage tank 1, and the sealing plate 5 slides inside the sand storage tank 1 to form a sealing mechanism.

[0033] refer to Figures 1 to 4 The material is placed inside the sand storage tank 1, and then the motor 2 is started. The output end of the motor 2 drives the sector gear 3 to rotate, which in turn drives the rack 4 to move. The rack 4 then moves the sealing plate 5, which is stored inside the sand storage tank 1. This allows the material inside the sand storage tank 1 to automatically enter the inside of the coated sand molding machine by gravity. The sealing plate 5 also acts as a seal, thus enabling the metered addition of sand and preventing material accumulation. Since no electrical components are used, regular maintenance is not required, making it easy to use.

[0034] Example 2: This utility model solves the problem that existing materials easily clump together in the automatic sand-adding device, thus affecting the feeding process. The stirring rod 12 can prevent material clumping. The following is disclosed:

[0035] The bottom of the motor 2 is connected to the bottom of the rotating rod 7 via the first pulley group 6, and the rotating rod 7 is connected to the outside of the sand storage tank 1 via a bearing. The top of the rotating rod 7 is connected to the middle of the rotating rod 9 via the second pulley group 8, and the middle of the second pulley group 8 penetrates the inside of the sand storage tank 1. The rotating rod 9 is connected to the bracket 10 via a bearing, and the bracket 10 is fixed inside the sand storage tank 1. The bottom of the rotating rod 9 extends into the interior of the driven rod 11 to form a limiting mechanism. The bottom of the driven rod 11 is connected to the bracket 10 located at the bottom of the sand storage tank 1 via a bearing. Stirring rods 12 are fixed at equal intervals on the driven rod 11, and the stirring rods 12 rotate inside the sand storage tank 1 to form a stirring mechanism.

[0036] refer to Figures 1 to 3The output of motor 2 drives the first pulley group 6 to rotate, which in turn drives the rotating rod 7 to rotate. The rotation of the rotating rod 7 drives the rotating rod 9 to rotate through the second pulley group 8. The rotating rod 9 can then rotate on the bracket 10. The rotation of the rotating rod 9 can drive the driven rod 11 to rotate, which in turn drives the stirring rod 12 to rotate. This allows the stirring rod 12 to stir the material inside the sand storage tank 1, thereby preventing the material from accumulating and agglomerating.

[0037] Example 3: This utility model solves the problem of poor stirring effect of the stirring rod 12 in Example 2. The inclined groove 13 can further improve the stirring effect. The following is disclosed:

[0038] A groove 13 is provided at the bottom of the driven rod 11, and a support rod 14 is nested and slidably arranged inside the groove 13. The support rod 14 is fixed on the bracket 10 located at the bottom of the sand storage tank 1.

[0039] refer to Figures 1 to 3 , Figure 5 and Figure 6 The driven rod 11 rotates, causing the inclined chute 13 to rotate. The rotation of the inclined chute 13 can then drive the driven rod 11 to move via the support rod 14. This allows the driven rod 11 to move while rotating, thereby driving the stirring rod 12 to stir up and down in the sand storage tank 1. Furthermore, the movement of the driven rod 11 can slide on the rotating rod 9, further improving the agitation effect.

[0040] Working principle: When using this automatic sand feeding device for a coated sand molding machine equipped with an anti-stacking structure, firstly, refer to... Figures 1 to 4 The material is placed inside the sand storage tank 1, and then the motor 2 is started. The output end of the motor 2 drives the sector gear 3 to rotate, which in turn drives the rack 4 to move. The sealing plate 5 moves and is stored inside the sand storage tank 1. The sealing plate 5 also plays a sealing role, which allows the sealing plate 5 to add sand in a metered manner, thereby avoiding the accumulation of material. Since no electrical components are used, regular maintenance is not required, making it easy to use.

[0041] refer to Figures 1 to 3 The output of motor 2 drives the first pulley group 6 to rotate, which in turn drives the rotating rod 7 to rotate, which in turn allows the rotating rod 9 to rotate on the bracket 10. The rotation of the rotating rod 9 can drive the driven rod 11 to rotate, thereby causing the stirring rod 12 to rotate and stir the material inside the sand storage tank 1, thus preventing the material from accumulating and agglomerating.

[0042] refer to Figures 1 to 3 , Figure 5 and Figure 6 The driven rod 11 rotates, causing the inclined groove 13 to rotate. The rotation of the inclined groove 13 can then drive the driven rod 11 to move via the support rod 14. This allows the driven rod 11 to move while rotating, and the movement of the driven rod 11 can slide on the rotating rod 9, thereby further improving the flipping effect.

[0043] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0044] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic sand feeding device for a coated sand molding machine with an anti-stacking structure, comprising a sand storage tank (1), wherein the sand storage tank (1) is installed at the feed inlet of the coated sand molding machine; Its features are, Also includes: A motor (2) is fixed to the right side of the sand storage tank (1) by bolts, and a sector gear (3) is keyed to the bottom of the motor (2). The outer end of the sector gear (3) is meshed with a rack (4). A sealing plate (5) is fixed to the left end of the rack (4). The rack (4) slides on the sand storage tank (1), and the sealing plate (5) slides inside the sand storage tank (1) to form a sealing mechanism.

2. The automatic sand feeding device for a coated sand molding machine with an anti-stacking structure according to claim 1, characterized in that: The bottom of the motor (2) is connected to the bottom of the rotating rod (7) via the first pulley group (6), and the rotating rod (7) is connected to the outside of the sand storage tank (1) via a bearing.

3. The automatic sand feeding device for a coated sand molding machine with an anti-stacking structure according to claim 2, characterized in that: The top of the rotating rod (7) is connected to the middle of the rotating rod (9) through the second pulley group (8), and the middle of the second pulley group (8) penetrates the interior of the sand storage tank (1).

4. An automatic sand feeding device for a coated sand molding machine with an anti-stacking structure as described in claim 3, characterized in that: The rotating rod (9) is connected to the bracket (10) by a bearing, and the bracket (10) is fixed inside the sand storage tank (1). The bottom of the rotating rod (9) extends into the interior of the driven rod (11) to form a limiting mechanism.

5. An automatic sand feeding device for a coated sand molding machine with an anti-stacking structure as described in claim 4, characterized in that: The bottom of the driven rod (11) is connected to the bracket (10) located at the bottom of the sand storage tank (1) by a bearing.

6. An automatic sand feeding device for a coated sand molding machine with an anti-stacking structure as described in claim 5, characterized in that: Stirring rods (12) are fixed at equal intervals on the driven rod (11), and the stirring rods (12) rotate inside the sand storage tank (1) to form a stirring mechanism.

7. An automatic sand feeding device for a coated sand molding machine with an anti-stacking structure as described in claim 6, characterized in that: The driven rod (11) has a groove (13) at its bottom, and a support rod (14) is nested inside the groove (13) and is fixed on a bracket (10) at the bottom of the sand storage tank (1).

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