Sand mold flow coating equipment

Abstract

The utility model discloses sand mold flow coating equipment which comprises a bottom plate, a lifting machine, a movable platform, a fixed frame, two sliding mechanisms, a telescopic rod, an electric push rod, a linear reciprocating mechanism, a flow coating hose and a flow coating pump station, the lifting machine, the flow coating pump station and the fixed frame are respectively arranged on the bottom plate, and the movable platform is fixedly arranged on the lifting machine. The two sliding mechanisms are arranged on the fixed frame and the movable platform respectively, the two ends of the telescopic rod are connected with the two sliding mechanisms respectively, one end of the electric push rod is fixedly connected with one end of the telescopic rod, one end of the flow coating hose is communicated with the flow coating pump station, and the other end of the flow coating hose is fixedly connected with the movable end of the electric push rod. The linear reciprocating mechanism is arranged on the fixing frame and connected with one sliding mechanism. Therefore, the uniformity of the thickness of a coating layer can be effectively improved, it is guaranteed that all corners of the inner surface of the sand mold are evenly covered with the coating, meanwhile, manual intervention can be effectively reduced, and the flow coating efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical casting, in particular to a sand mold flow coating device. Background Art

[0002] Sand molds play a key role in the process of mechanical casting, especially in the production of large castings such as wind turbine main engines. Sand molds are formed by solidifying molding sand in a sand box. They provide the shape outline of the casting for the casting process. After the molding sand solidifies in the sand box, it is necessary to flow coat the surface of the sand mold to prevent the molding sand from sintering on the casting during the solidification of the molten iron after casting. The main purpose of flow coating is to form a uniform coating layer on the surface of the sand mold. This coating can effectively isolate the molten iron and molding sand, and prevent the molding sand and molten iron from sticking and sintering during the casting process.

[0003] In the related art, the flow coating process of sand molds mainly adopts brush and roller brushing method, sprayer spray coating method and manual handheld flow coating hose method. Among them, using brushes and rollers to apply paint is a more traditional method. Since brushes and rollers can only cover a small area at a time, for large sand molds, it takes a lot of time and manpower to complete the painting of the entire sand mold surface. Moreover, due to the instability of manual operation, it is difficult to ensure the uniformity of the thickness of the paint layer; although the use of sprayers to spray paint has improved the efficiency to a certain extent, since the distribution of the paint is greatly affected by factors such as airflow and spray angle, it is difficult to accurately control the uniform coverage of the paint in every corner of the internal surface of the sand mold; when manually holding a flow coating hose to enter the sand box for flow coating, although in theory all corners of the internal surface of the sand mold can be processed, the internal space of the sand box is limited and there may be unstable sand mold structures, which are prone to collapse and other dangers. At the same time, the accuracy and efficiency of manual operation are still limited, and high-quality and efficient flow coating operations cannot be guaranteed. Utility Model Content

[0004] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, the utility model proposes a sand mold flow coating equipment, which can effectively improve the uniformity of the coating layer thickness and ensure uniform coverage of the coating in every corner of the internal surface of the sand mold. At the same time, it can also effectively reduce manual intervention and improve flow coating efficiency.

[0006] To achieve the above-mentioned purpose, the utility model proposes a sand mold flow coating equipment, including a base plate, a lift, a movable platform, a fixed frame, two sliding mechanisms, a telescopic rod, an electric push rod, a linear reciprocating mechanism, a flow coating hose and a flow coating pump station, wherein the lift, the flow coating pump station and the fixed frame are respectively arranged on the base plate, and the movable platform is fixedly arranged on the lift; the two sliding mechanisms are respectively arranged on the fixed frame and the movable platform, and the two ends of the telescopic rod are respectively connected to the two sliding mechanisms; one end of the electric push rod is fixedly connected to one end of the telescopic rod, and the movable end of the electric push rod is arranged close to the sand mold body; one end of the flow coating hose is connected to the flow coating pump station, and the other end of the flow coating hose is fixedly connected to the movable end of the electric push rod; the linear reciprocating mechanism is arranged on the fixed frame, and the linear reciprocating mechanism is connected to one of the sliding mechanisms.

[0007] The sand mold flow coating equipment of the utility model can effectively improve the uniformity of the thickness of the coating layer and ensure the uniform coverage of the coating in every corner of the inner surface of the sand mold. At the same time, it can also effectively reduce manual intervention and improve the flow coating efficiency.

[0008] In addition, the sand flow coating equipment proposed in the present application may also have the following additional technical features:

[0009] Specifically, the sliding mechanism includes a sliding bracket and a ball bushing, wherein the two sliding brackets are respectively fixed on the fixed bracket and the movable platform, and the two ball bushings are respectively sleeved on the two sliding brackets; the two ends of the telescopic rod are respectively fixedly connected to the two ball bushings.

[0010] Specifically, the telescopic rod includes a fixed tube and a movable rod, wherein the fixed tube is fixedly arranged on one of the ball bushings; the movable rod is slidably connected to the inner wall of the fixed tube, and the movable rod is fixedly connected to the other ball bushing.

[0011] Specifically, the linear reciprocating mechanism includes a rodless cylinder, an annular slide rail and a connecting rod, wherein the annular slide rail is sleeved on the ball bushing located on the fixed frame; the rodless cylinder is arranged on the fixed frame, and the two ends of the connecting rod are respectively fixedly connected to the movable block on the rodless cylinder and the sliding block on the annular slide rail.

[0012] Specifically, the spraying end of the flow coating hose is consistent with the length direction of the electric push rod.

[0013] Specifically, the fixing frame is located between the elevator and the sand mold body.

[0014] Compared with the prior art, the beneficial effects of this application are:

[0015] 1. Efficient covering ability: by controlling the front, back, left, right and pitch angles of the flow coating hose, the paint sprayed from the flow coating hose can be sprayed quickly and accurately to every corner of the inner surface of the sand mold, thereby effectively avoiding the occurrence of flow coating dead corners on the inner surface of the sand mold.

[0016] 2. Improve the uniformity of coating thickness. Since the present application can accurately control the spraying position and angle of the coating, it avoids the problem of uneven coating thickness caused by human factors in traditional brushing and spraying methods. It can form a uniform coating layer on the surface of the sand mold, effectively preventing the sintering of the molding sand during the casting process, ensuring the quality of the casting, and reducing the difficulty and workload of subsequent cleaning work.

[0017] 3. Wide applicability and safety. This application is applicable to sand boxes of various sizes, whether it is a small sand box or a large sand box used for the production of large wind turbine main engines, and can conveniently carry out flow coating operations. Moreover, the entire flow coating process does not require operators to enter the sand box, avoiding the safety risks of personnel working in the sand box, ensuring the safety of personnel in the production process, and meeting the requirements of safe production.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of a sand flow coating device according to one embodiment of the present invention;

[0021] Figure 2 For this utility model Figure 1 Enlarged view of point A in the middle;

[0022] Figure 3 For this utility model Figure 2 Enlarged view of point B in the middle;

[0023] Figure 4 This is a left-side structural schematic diagram of a sand flow coating device according to one embodiment of the present invention.

[0024] As shown in the figure: 1. Base plate; 2. Lift; 3. Movable platform; 4. Fixed frame; 5. Sliding mechanism; 501. Sliding bracket; 502. Ball bushing; 6. Telescopic rod; 601. Fixed tube; 602. Movable rod; 7. Electric push rod; 8. Linear reciprocating mechanism; 801. Rodless cylinder; 802. Annular slide rail; 803. Connecting rod; 9. Flow coating hose; 10. Flow coating pump station; 11. Sand mold body. DETAILED DESCRIPTION

[0025] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the present invention include all variations, modifications, and equivalents that fall within the spirit and scope of the appended claims.

[0026] The sand flow coating equipment of the embodiment of the present invention will be described below with reference to the accompanying drawings.

[0027] The sand mold flow coating equipment provided by the utility model is mainly used in the process of mechanical casting for performing flow coating operations on the surface inside the sand mold. It can effectively improve the uniformity of the thickness of the coating layer and ensure the uniform coverage of the coating in every corner of the internal surface of the sand mold. At the same time, it can also effectively reduce manual intervention and improve flow coating efficiency.

[0028] like Figures 1-4 As shown, the sand mold flow coating equipment of the embodiment of the utility model may include a base plate 1, a lift 2, a movable platform 3, a fixed frame 4, two sliding mechanisms 5, a telescopic rod 6, an electric push rod 7, a linear reciprocating mechanism 8, a flow coating hose 9 and a flow coating pump station 10.

[0029] Among them, the elevator 2, the flow coating pump station 10 and the fixed frame 4 are respectively arranged on the base plate 1, and the movable platform 3 is fixedly set on the elevator 2, the two sliding mechanisms 5 are respectively arranged on the fixed frame 4 and the movable platform 3, and the two ends of the telescopic rod 6 are respectively connected to the two sliding mechanisms 5, one end of the electric push rod 7 is fixedly connected to one end of the telescopic rod 6, and the movable end of the electric push rod 7 is arranged close to the sand mold body 11, one end of the flow coating hose 9 is connected to the flow coating pump station 10, and the other end of the flow coating hose 9 is fixedly connected to the movable end of the electric push rod 7, the linear reciprocating mechanism 8 is arranged on the fixed frame 4, and the linear reciprocating mechanism 8 is connected to one of the sliding mechanisms 5.

[0030] It should be noted that the spraying end of the flow coating hose 9 described in this embodiment is consistent with the length direction of the electric push rod 7, and the fixing frame 4 is located between the elevator 2 and the sand mold body 11.

[0031] Specifically, when the inner surface of the sand mold body 11 is flow coated, the relevant personnel first start the electric push rod 7 to extend the spraying end of the flow coating hose 9 into the sand mold body 11, and then start the flow coating pump station 10 to spray the paint through the flow coating hose 9 to the inner surface of the sand mold body 11, and control the pitch angle of the flow coating hose 9 through the elevator 2. When the elevator 2 drives the movable platform 3 to move upward, the movable platform 3 drives the flow coating hose 9 to spray downward through the telescopic rod 6, the electric push rod 7 and the mutual cooperation between the two sliding mechanisms 5, and drives the flow coating hose 9 to spray upward to achieve the adjustment of the pitch angle of the flow coating hose 9. In addition, by controlling the extension and retraction of the movable end of the electric push rod 7, the front and rear directions of the flow coating hose 9 can also be adjusted. In addition, the left and right angles of the spraying end of the flow coating hose 9 can also be adjusted through the linear reciprocating mechanism 8, thereby effectively improving the uniformity of the thickness of the coating layer and ensuring uniform coverage of the coating in every corner of the inner surface of the sand mold. At the same time, it can also effectively reduce manual intervention and improve flow coating efficiency.

[0032] In one embodiment of the present invention, Figures 1-4 As shown, the sliding mechanism 5 may include a sliding bracket 501 and a ball bushing 502 .

[0033] The two sliding brackets 501 are fixedly mounted on the fixed frame 4 and the movable platform 3 respectively. The two ball bushings 502 are respectively sleeved on the two sliding brackets 501 . Both ends of the telescopic rod 6 are fixedly connected to the two ball bushings 502 respectively.

[0034] Specifically, the ball bushing 502 is sleeved on the sliding bracket 501 so that the ball bushing 502 can slide on the sliding bracket 501 and rotate at the same time, thereby adjusting one of the ball bushings 502 and adjusting the pitch angle of the telescopic rod 6 at the same time.

[0035] In one embodiment of the present invention, Figures 1-4 As shown, the telescopic rod 6 may include a fixed tube 601 and a movable rod 602 .

[0036] The fixed tube 601 is fixedly disposed on one of the ball bushings 502 , the movable rod 602 is slidably connected to the inner wall of the fixed tube 601 , and the movable rod 602 is fixedly connected to the other ball bushing 502 .

[0037] Specifically, the length of the telescopic rod 6 is adjusted by the cooperation between the fixed tube 601 and the movable rod 602 , thereby enabling the telescopic rod 6 to adapt to the change in the distance between the two ball bushings 502 .

[0038] In one embodiment of the present invention, Figures 1-4As shown, the linear reciprocating mechanism 8 may include a rodless cylinder 801 , an annular slide rail 802 and a connecting rod 803 .

[0039] Among them, the annular slide rail 802 is sleeved on the ball bushing 502 located on the fixed frame 4, the rodless cylinder 801 is set on the fixed frame 4, and the two ends of the connecting rod 803 are fixedly connected to the movable block on the rodless cylinder 801 and the sliding block on the annular slide rail 802 respectively.

[0040] It should be noted that the rodless cylinder 801 described in this embodiment is arranged parallel to the sliding bracket 501 on the fixed bracket 4.

[0041] Specifically, relevant personnel control the reciprocating movement of the movable block on the rodless cylinder 801 to drive the telescopic rod 6 to slide left and right through the ball bushing 502, and then drive the left and right angles of the flow coating hose 9 to be adjusted. Among them, the annular slide rail 802 is set to prevent the connecting rod 803 from obstructing the rotation of the ball bushing 502.

[0042] In summary, the sand mold flow coating equipment of the embodiment of the present invention can effectively improve the uniformity of the coating layer thickness and ensure uniform coverage of the coating in every corner of the internal surface of the sand mold. At the same time, it can also effectively reduce manual intervention and improve flow coating efficiency.

[0043] In this specification, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this utility model, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0044] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0045] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present invention.

Claims

1. A sand flow coating device, characterized in that, It includes a base plate, a lift, a movable platform, a fixed frame, two sliding mechanisms, a telescopic rod, an electric push rod, a linear reciprocating mechanism, a flow coating hose and a flow coating pump station, among which, The elevator, the flow coating pump station and the fixed frame are respectively arranged on the bottom plate, and the movable platform is fixedly arranged on the elevator; The two sliding mechanisms are respectively arranged on the fixed frame and the movable platform, and the two ends of the telescopic rod are respectively connected to the two sliding mechanisms; One end of the electric push rod is fixedly connected to one end of the telescopic rod, and the movable end of the electric push rod is arranged close to the sand mold body; One end of the flow coating hose is connected to the flow coating pump station, and the other end of the flow coating hose is fixedly connected to the movable end of the electric push rod; The linear reciprocating mechanism is arranged on the fixing frame, and the linear reciprocating mechanism is connected to one of the sliding mechanisms.

2. The sand flow coating equipment according to claim 1, characterized in that: The sliding mechanism includes a sliding bracket and a ball bushing, wherein: The two sliding brackets are fixedly arranged on the fixed frame and the movable platform respectively, and the two ball bushings are respectively sleeved on the two sliding brackets; Both ends of the telescopic rod are fixedly connected to the two ball bushings respectively.

3. The sand flow coating equipment according to claim 2, characterized in that: The telescopic rod includes a fixed tube and a movable rod, wherein: The fixed tube is fixedly arranged on one of the ball bushings; The movable rod is slidably connected to the inner wall of the fixed tube, and the movable rod is fixedly connected to the other ball bushing.

4. The sand flow coating equipment according to claim 3, characterized in that: The linear reciprocating mechanism includes a rodless cylinder, an annular slide rail and a connecting rod, wherein: The annular slide rail is sleeved on the ball bushing located on the fixing frame; The rodless cylinder is arranged on the fixing frame, and both ends of the connecting rod are fixedly connected to the movable block on the rodless cylinder and the sliding block on the annular slide rail respectively.

5. The sand flow coating equipment according to claim 1, characterized in that: The spraying end of the flow coating hose is consistent with the length direction of the electric push rod.

6. The sand flow coating equipment according to claim 1, characterized in that: The fixing frame is located between the elevator and the sand mold body.

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