Dip-coating paint dipping tank device for high-refractoriness fine sand core

Abstract

The utility model belongs to the technical field of sand core processing, and particularly relates to a dip-coating paint dipping tank device for a high-refractoriness fine sand core, which comprises a tank body and a reciprocating stirring mechanism which is arranged in the tank body and is used for uniformly stirring paint liquid in a reciprocating manner, and the tank body is in a rectangular tank shape with an open upper end surface; the reciprocating stirring mechanism comprises a movable frame which is arranged in the tank body and reciprocates in the length direction of the tank body, at least two vertical stirring shafts are rotationally arranged on the movable frame through bearings, stirring blades used for stirring coating liquid are evenly arranged on rod bodies of the stirring shafts, and supports are fixedly arranged at the top of the movable frame at equal intervals. The reciprocating motion of the movable frame in the length direction of the tank body is realized by driving the reciprocating screw rod through the servo motor, the stirring blades rotate while translating along with the movable frame, and the composite motion forms a double stirring effect on materials, so that the stirring uniformity of coating liquid can be obviously improved, the coating liquid is ensured to be uniformly attached when a fine sand core with high refractoriness is dip-coated, and the coating quality is improved. And the sand core quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of sand core processing technology, specifically to a device for impregnating high-refractory fine sand cores with a coating impregnation tank. Background Technology

[0002] During the processing of sand cores, they are impregnated to form a protective refractory layer by uniformly attaching a high-refractory coating to the surface of the sand core. This improves the performance of the sand core in the high-temperature casting environment. The high-refractory fine sand core has the ability to withstand high-temperature environments. In processes such as high-temperature casting, the coating layer on the surface of the sand core needs to form a continuous and dense refractory barrier to resist the erosion of high-temperature molten metal, avoid defects such as burning penetration and sand adhesion, and ensure the smooth progress of the casting process and the quality of the castings.

[0003] In order to improve the mixing effect of sand cores and coating liquid, some impregnation tanks of general impregnation devices are equipped with a stirring mechanism. However, the general stirring mechanism rotates in one direction or stirs in a fixed position. The coating liquid is prone to local sedimentation or stratification, resulting in uneven coating adhesion when impregnating fine sand cores, which affects the fire resistance and surface quality of the sand cores. Therefore, it is necessary to develop an impregnation tank device for high fire resistance fine sand cores. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0005] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0006] A device for impregnating high-refractory fine sand cores with coating, comprising a tank body and a reciprocating stirring mechanism disposed within the tank body for reciprocating and uniformly stirring the coating liquid, wherein the tank body is a rectangular tank with an open upper end.

[0007] The reciprocating stirring mechanism includes a movable frame disposed within a tank and reciprocating along the length of the tank. At least two vertical stirring shafts are rotatably mounted on the movable frame via bearings. Stirring blades for stirring the coating liquid are evenly distributed along the shafts of the stirring shafts. Supports are fixedly mounted at equal intervals on the top of the movable frame. A transverse transmission rod is rotatably threaded through the side wall of the support via bearings. A first bevel gear is fixedly mounted at the top of each stirring shaft. A second bevel gear meshing with the first bevel gear is fixedly mounted on the shaft of the transmission rod. A transmission gear is mounted at one end of the transmission rod. A notch is recessed along the upper edge of the tank, extending along the direction of movement of the movable frame. A rack meshing with the transmission gear is fixedly mounted on the notch. A drive mechanism for driving the movable frame to reciprocate is provided on the tank.

[0008] As a preferred embodiment of the high-refractory fine sand core impregnation tank device described in this utility model, the side wall of the tank is provided with a discharge pipe that communicates with its own inner cavity, and the discharge pipe is provided with a discharge valve.

[0009] As a preferred embodiment of the high-refractory fine sand core impregnation tank device described in this utility model, the top of the tank body is provided with an upper cover plate by a hinge, and the upper cover plate has a receiving groove recessed on the side near the upper end face of the tank body.

[0010] As a preferred embodiment of the high-refractory fine sand core impregnation tank device described in this utility model, the top of the movable frame is equipped with a protective shell by screws, the inner cavity of the protective shell is used to store the components above the movable frame, and the protective shell is always set at a distance from the inner side of the receiving tank.

[0011] As a preferred embodiment of the high-refractory fine sand core impregnation tank device described in this utility model, the driving mechanism includes a reciprocating screw that is rotatably mounted on the upper side wall of the inner cavity of the tank via a bearing. The length direction of the reciprocating screw is consistent with the movement direction of the movable frame, and a screw nut is sleeved on the body of the reciprocating screw. The rotating reciprocating screw drives the screw nut to reciprocate along the reciprocating screw.

[0012] As a preferred embodiment of the high-refractory fine sand core impregnation tank device described in this utility model, the screw nut is fixed to one end of the movable frame, a limiting guide rod is fixedly provided on the side wall of the inner cavity of the tank relative to the reciprocating screw, the limiting guide rod is arranged parallel to the reciprocating screw, a linear bearing is fixedly provided at the end of the movable frame away from the screw nut, and the inner side of the linear bearing is movably sleeved on the rod body of the limiting guide rod.

[0013] As a preferred embodiment of the high-refractory fine sand core impregnation tank device described in this utility model, a servo motor is fixedly installed on the side wall of the tank body. The output shaft of the servo motor rotates through the side wall of the tank body via a sealed bearing, and the output shaft of the servo motor is connected to the end of a reciprocating lead screw via a coupling.

[0014] The beneficial effects of this utility model are as follows: the reciprocating movement of the movable frame along the length of the tank is achieved by a servo motor driving a reciprocating lead screw. This linear motion is synchronously converted into the rotational motion of the transmission rod through the meshing of the transmission gear and the rack in the notch of the tank. The transmission rod meshes with the first bevel gear at the top of the stirring shaft through the second bevel gear, driving the stirring shaft to rotate. This causes the stirring blade to rotate while moving with the movable frame. This compound motion creates a double stirring effect on the material, which can significantly improve the uniformity of the coating liquid stirring, ensure uniform coating liquid adhesion when impregnating high-refractory fine sand cores, and thus improve the quality of the sand cores. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This utility model Figure 1 A schematic diagram of the structure from a side view;

[0018] Figure 3 This utility model Figure 2 Schematic diagram of the structure of region A in the middle;

[0019] Figure 4 This is a structural schematic diagram of the movable frame and other components of this utility model;

[0020] Figure 5 This utility model Figure 4 A schematic diagram of the structure from a side-top view.

[0021] In the diagram: 100-tank body, 101-discharge pipe, 102-discharge valve, 103-upper cover plate, 104-receiving tank, 200-reciprocating stirring mechanism, 201-movable frame, 202-stirring shaft, 203-stirring blade, 204-support, 205-transmission rod, 206-first bevel gear, 207-second bevel gear, 208-transmission gear, 209-notch groove, 210-rack, 211-protective shell, 212-reciprocating lead screw, 213-lead screw nut, 214-servo motor, 215-limiting guide rod, 216-linear bearing. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0026] Please see Figures 1-5 The diagram shows a structural schematic of an embodiment of the impregnation tank device for high-refractory fine sand cores according to this utility model. Please refer to [link / reference]. Figures 1-5 This paper provides a detailed introduction to an impregnation tank device for high-refractory fine sand cores using a coating.

[0027] A device for impregnating high-refractory fine sand cores with coating includes a tank body 100 and a reciprocating stirring mechanism 200 disposed in the tank body 100 for reciprocating and uniformly stirring the coating liquid. The tank body 100 is a rectangular tank with an open upper end. The rectangular tank design with an open upper end facilitates the insertion and removal of sand cores and the addition of coating liquid.

[0028] The reciprocating stirring mechanism 200 includes a movable frame 201 disposed within a tank 100 and reciprocating along the length of the tank 100. At least two vertical stirring shafts 202 are rotatably mounted on the movable frame 201 via bearings. Stirring blades 203 for stirring the coating liquid are evenly distributed along the shaft of each stirring shaft 202. Supports 204 are fixedly mounted at equal intervals at the top of the movable frame 201. A transverse transmission rod 205 is rotatably threaded through the side wall of each support 204 via bearings. The top end of each stirring shaft 202 is fixed... A first bevel gear 206 is provided, and a second bevel gear 207 that meshes with the first bevel gear 206 is fixedly installed on the rod of the transmission rod 205. A transmission gear 208 is provided at one end of the transmission rod 205. A notch 209 is recessed in the upper edge of the groove 100. The notch 209 is opened along the movement direction of the movable frame 201, and a rack 210 that meshes with the transmission gear 208 is fixedly provided on the notch 209. A drive mechanism for driving the movable frame 201 to reciprocate is provided on the groove 100.

[0029] In the reciprocating stirring mechanism 200, when the movable frame 201 moves back and forth along the length of the tank 100, it drives the stirring shaft 202 and the stirring blade 203 to make linear reciprocating motion within the tank 100. At the same time, during the movement of the movable frame 201, the transmission gear 208 meshes with the rack 210, causing the transmission rod 205 to rotate. Through the meshing of the second bevel gear 207 with the first bevel gear 206, the stirring shaft 202 is driven to rotate. When the stirring blade 203 moves back and forth, it also rotates. This compound motion creates a double stirring effect on the material, which can significantly improve the uniformity of the coating liquid stirring, ensure uniform coating liquid adhesion during the impregnation of high-refractory fine sand cores, and thus improve the quality of the sand cores.

[0030] Wherein: the side wall of the tank 100 is provided with a discharge pipe 101 that connects to its own inner cavity, and a discharge valve 102 is provided on the discharge pipe 101. The discharge pipe 101 is used to discharge the stirred material.

[0031] The top cover plate 103 of the tank 100 is hinged to the top and can be closed in the non-immersion coating state, which effectively prevents dust and debris from falling into the tank 100 and keeps the coating liquid clean. The top cover plate 103 has a recessed receiving groove 104 on the side near the upper end face of the tank 100. The receiving groove 104 provides a space for the components above the movable frame 201 to move, avoids interference between the top cover plate 103 and the components above the movable frame 201, and ensures the normal operation of the device.

[0032] The movable frame 201 is fitted with a protective shell 211 on its top by screws. The inner cavity of the protective shell 211 is used to store the components above the movable frame 201. The protective shell 211 is always kept at a distance from the inner side of the receiving groove 104. The protective shell 211 on the top of the movable frame 201 can store components such as the transmission rod 205 and gears, effectively preventing paint liquid from splashing onto the components and avoiding affecting the transmission performance and the service life of the components. At the same time, the protective shell 211 is kept at a distance from the inner side of the receiving groove 104 to ensure that the protective shell 211 will not rub or collide with the upper cover plate 103 when the movable frame 201 moves back and forth, thus ensuring the stability and reliability of the device operation.

[0033] The drive mechanism includes a reciprocating lead screw 212 rotatably mounted on the upper side wall of the inner cavity of the tank 100 via bearings. The length direction of the reciprocating lead screw 212 is consistent with the movement direction of the movable frame 201, and a lead screw nut 213 is fitted on the body of the reciprocating lead screw 212. The rotation of the reciprocating lead screw 212 drives the lead screw nut 213 to reciprocate along the reciprocating lead screw 212. The cooperation between the reciprocating lead screw 212 and the lead screw nut 213 in the drive mechanism can convert the rotational motion of the reciprocating lead screw 212 into the linear reciprocating motion of the lead screw nut 213, thereby precisely controlling the reciprocating speed and stroke of the movable frame 201, making the movement of the stirring mechanism more stable and controllable, and thus ensuring the uniformity and consistency of the coating liquid stirring.

[0034] The lead screw nut 213 is fixed to one end of the movable frame 201. A limiting guide rod 215 is fixedly provided on the inner wall of the tank 100 relative to the reciprocating lead screw 212. The limiting guide rod 215 is arranged parallel to the reciprocating lead screw 212. A linear bearing 216 is fixedly provided at the end of the movable frame 201 away from the lead screw nut 213. The inner side of the linear bearing 216 is movably sleeved on the rod of the limiting guide rod 215. The setting of the limiting guide rod 215 and the linear bearing 216 provides guidance and limiting function for the reciprocating movement of the movable frame 201. The linear bearing 216 is sleeved on the limiting guide rod 215, so that the movable frame 201 can only move along the direction of the limiting guide rod 215, effectively avoiding the deviation or shaking of the movable frame 201, significantly improving the stability of the stirring mechanism and ensuring reliable stirring effect.

[0035] A servo motor 214 is fixedly installed on the side wall of the tank 100. The output shaft of the servo motor 214 rotates through the side wall of the tank 100 via a sealed bearing, and the output shaft of the servo motor 214 is connected to the end of the reciprocating screw 212 via a coupling. The servo motor 214, as a drive source, has the advantages of precise speed control, stable operation, and reliable power output. By driving the reciprocating screw 212 to rotate through the servo motor 214, the reciprocating speed and frequency of the movable frame 201 can be precisely adjusted according to actual production needs, so as to achieve precise control of stirring intensity and stirring time, fully meet the requirements of coating liquid stirring under different process conditions, and further improve the sand core impregnation coating quality and production efficiency.

[0036] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A device for impregnating high-refractory fine sand cores with a coating, comprising a tank body (100) and a reciprocating stirring mechanism (200) disposed within the tank body (100) for reciprocatingly and uniformly stirring the coating liquid, characterized in that: The groove (100) is a rectangular groove with an open upper end face; The reciprocating stirring mechanism (200) includes a movable frame (201) disposed in the tank (100) and reciprocating along the length of the tank (100). At least two vertical stirring shafts (202) are rotatably mounted on the movable frame (201) via bearings. Stirring blades (203) for stirring the coating liquid are evenly distributed on the shaft of each stirring shaft (202). Supports (204) are fixedly mounted at equal intervals at the top of the movable frame (201). A transverse transmission rod (205) is rotatably mounted through the side wall of each support (204) via bearings. The top of each stirring shaft (202) is fixedly mounted with… There is a first bevel gear (206), and a second bevel gear (207) that meshes with the first bevel gear (206) is fixedly installed on the rod body of the transmission rod (205). A transmission gear (208) is provided at one end of the transmission rod (205). A notch (209) is recessed inward along the upper edge of the groove (100). The notch (209) is opened along the moving direction of the movable frame (201), and a rack (210) that meshes with the transmission gear (208) is fixedly installed on the notch (209). A drive mechanism for driving the movable frame (201) to reciprocate is provided on the groove (100).

2. The device for impregnating high-refractory fine sand cores with a coating impregnation tank according to claim 1, characterized in that: The side wall of the tank (100) is provided with a discharge pipe (101) that communicates with its own inner cavity, and a discharge valve (102) is provided on the discharge pipe (101).

3. The device for impregnating high-refractory fine sand cores with a coating impregnation tank according to claim 1, characterized in that: The top of the trough (100) is hinged to a top cover plate (103), and the top cover plate (103) has a recessed receiving groove (104) on one side near the upper end face of the trough (100).

4. The device for impregnating high-refractory fine sand cores with a coating impregnation tank according to claim 3, characterized in that: The top of the movable frame (201) is fitted with a protective shell (211) by screws. The inner cavity of the protective shell (211) is used to store the components above the movable frame (201). The protective shell (211) is always set at a distance from the inside of the receiving groove (104).

5. The device for impregnating high-refractory fine sand cores with a coating as described in claim 1, characterized in that: The driving mechanism includes a reciprocating lead screw (212) that is rotatably mounted on the upper side wall of the inner cavity of the groove (100) via a bearing. The length direction of the reciprocating lead screw (212) is consistent with the movement direction of the movable frame (201), and a lead screw nut (213) is sleeved on the rod of the reciprocating lead screw (212). The rotating reciprocating lead screw (212) drives the lead screw nut (213) to reciprocate along the reciprocating lead screw (212).

6. The device for impregnating high-refractory fine sand cores with a coating impregnation tank according to claim 5, characterized in that: The lead screw nut (213) is fixed to one end of the movable frame (201). A limiting guide rod (215) is fixedly provided on the side wall of the inner cavity of the groove (100) relative to the reciprocating lead screw (212). The limiting guide rod (215) is arranged parallel to the reciprocating lead screw (212). A linear bearing (216) is fixedly provided at the end of the movable frame (201) away from the lead screw nut (213). The inner side of the linear bearing (216) is movably sleeved on the rod body of the limiting guide rod (215).

7. The device for impregnating high-refractory fine sand cores with a coating as described in claim 1, characterized in that: A servo motor (214) is fixedly installed on the side wall of the tank (100). The output shaft of the servo motor (214) rotates through the side wall of the tank (100) via a sealed bearing. The output shaft of the servo motor (214) is connected to the end of the reciprocating screw (212) via a coupling.

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