A semi-automatic sand mixing tank for sand mixer

Abstract

This utility model provides a semi-automatic sand mixing tank for a sand mixer, belonging to the field of sand mixers. It includes a support frame installed on the boiling chamber of the sand mixer. One end of the support frame is provided with a front bearing seat. A sand mixing main shaft is rotatably installed between the front bearing seat and the boiling chamber. A left sand mixing tank and a right sand mixing tank are provided on the outer side of the sand mixing main shaft. The left sand mixing tank is hinged to the boiling chamber and a first linear drive pair is hinged between the left sand mixing tank and the boiling chamber. The right sand mixing tank is hinged to the boiling chamber and a second linear drive pair is hinged between the right sand mixing tank and the boiling chamber. The two linear drive pairs can drive the sand mixing tanks on both sides to rotate around the hinge axis between them and the boiling chamber, so as to open the entire sand mixing tank and facilitate the operator to perform corresponding maintenance and cleaning operations.

Description

Technical Field

[0001] This utility model belongs to the field of sand mixers, specifically relating to a semi-automatic sand mixing tank for sand mixers. Background Technology

[0002] In the casting process, the preparation of molding sand plays a decisive role in the quality of castings. The sand mixer, as a key piece of equipment for achieving uniform mixing of the components in the molding sand and ensuring effective coating of the sand grains with binder, occupies an extremely important position in the entire casting process.

[0003] Currently, there are various types of sand mixers on the market, and their core components generally include key parts such as a feed hopper, a fluidized bed, a mixing trough, and a mixing spindle. In the actual operation process, the raw sand to be mixed, along with binders, additives, and other auxiliary materials, is precisely fed into the fluidized bed of the sand mixer through the feed hopper. Subsequently, the mixed material is conveyed to the corresponding mixing trough, where the mixing spindle starts. While driving the sand to be conveyed along the trough, the mixing spindle blades agitate the sand with various auxiliary materials. Finally, the mixed sand is discharged through the outlet at the end of the mixing trough and enters the next production stage.

[0004] However, the integrated sand mixing tank in traditional sand mixers is prone to the following problems during long-term use: after the sand mixing work is completed, the cleaning of residual molding sand inside the sand mixing tank is extremely tedious. Therefore, manual cleaning is difficult and consumes a lot of manpower and time costs, making it difficult to ensure thorough cleaning and easily affecting the subsequent sand mixing quality due to residual molding sand. Utility Model Content

[0005] The purpose of this invention is to address the problems of difficult cleaning and high manual labor intensity in the sand mixing tanks used in existing sand mixers, and to propose and design a new type of semi-automatic sand mixing tank for sand mixers, which can improve the convenience of cleaning and maintenance efficiency of the sand mixing tank, and provide a more efficient and stable sand mixing solution for casting production.

[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows: a semi-automatic sand mixing tank for a sand mixer, comprising a support frame that can be installed on the boiling chamber of the sand mixer. A front bearing seat is provided at one end of the support frame away from the boiling chamber. A sand mixing main shaft is rotatably mounted between the front bearing seat and the boiling chamber. A left sand mixing tank and a right sand mixing tank are provided on the outer side of the sand mixing main shaft. One end of the left sand mixing tank is hinged to the boiling chamber, and a first linear drive pair is hinged between the left sand mixing tank and the boiling chamber. One end of the right sand mixing tank is hinged to the boiling chamber, and a second linear drive pair is hinged between the right sand mixing tank and the boiling chamber. The left sand mixing tank can be rotated around the hinge axis between itself and the boiling chamber through the first linear drive pair, and the right sand mixing tank can be rotated around the hinge axis between itself and the boiling chamber through the second linear drive pair, so as to open the entire sand mixing tank and facilitate the operator to perform corresponding maintenance and cleaning operations.

[0007] Furthermore, the system also includes a left-side photoelectric sensor installed on the boiling chamber of the sand mixer and a left-side photoelectric control board installed on the left mixing tank. When the left mixing tank is open, the left-side photoelectric control board can receive the light beam emitted by the left-side photoelectric sensor; when the left mixing tank is closed, the left-side photoelectric control board cannot receive the light beam emitted by the left-side photoelectric sensor. The system also includes a right-side photoelectric sensor installed on the boiling chamber of the sand mixer and a right-side photoelectric control board installed on the right mixing tank. When the right mixing tank is open, the right-side photoelectric control board can receive the light beam emitted by the right-side photoelectric sensor; when the right mixing tank is closed, the right-side photoelectric control board cannot receive the light beam emitted by the right-side photoelectric sensor. In this way, the present invention can electrically connect the left-side photoelectric control board to the control module of the first linear drive pair on the left, and electrically connect the right-side photoelectric control board to the control module of the second linear drive pair on the right. The opening angle of the corresponding mixing tank is controlled through the cooperation of the corresponding photoelectric sensor, photoelectric control board, and corresponding control circuit.

[0008] Furthermore, both the first linear drive pair and the second linear drive pair are electrically connected to a control switch, and the control switch is communicatively connected to a remote control button, which can be used to achieve remote operation, thereby reducing dust pollution caused by on-site operation by the operator.

[0009] Furthermore, both the first linear drive pair and the second linear drive pair are cylinders. The cylinder body is connected to the boiling chamber body through a hinge bracket, and the piston rod end of the cylinder is hinged to the corresponding sand mixing tank through a hinge bracket. The corresponding sand mixing tank can be opened or closed by the extension and retraction movement of the piston rod of the corresponding cylinder.

[0010] Furthermore, the left and / or right mixing tanks are equipped with handles, which allow operators to easily open them when necessary.

[0011] Furthermore, a discharge port is provided at the lower part of one end of the left mixing tank. A rigid discharge pipe and a flexible discharge pipe are installed sequentially from top to bottom at the discharge port, and the flexible discharge pipe allows the operator to easily adjust the discharge position.

[0012] Furthermore, a locking mechanism is provided between the edges of the left and right mixing tanks, and the connection between the left and right mixing tanks is achieved through the locking mechanism.

[0013] Furthermore, a left wear-resistant liner is provided in the left sand mixing tank, and a right wear-resistant liner is provided in the right sand mixing tank. The left wear-resistant liner can be embedded inside the upper edge of the right sand mixing tank, and the right wear-resistant liner can be embedded inside the lower edge of the left sand mixing tank. Through this embedded installation, the left and right wear-resistant liners achieve a sealed connection between the left and right sand mixing tanks.

[0014] As can be seen from the above technical solution, this utility model has the following advantages: Since this utility model has a first linear drive pair between the left mixing tank and the boiling box, and a second linear drive pair between the right mixing tank and the boiling box, it can drive the left mixing tank to rotate around the hinge axis between itself and the boiling box through the first linear drive pair, and drive the right mixing tank to rotate around the hinge axis between itself and the boiling box through the second linear drive pair, so as to open the entire mixing tank, which facilitates the operator to perform corresponding maintenance and cleaning operations, and solves the problem of difficulty in manually opening and closing the mixing tank in the prior art. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. 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.

[0016] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model; Figure 2 This is a schematic diagram of the structure of the left and right sand mixing tanks in this utility model.

[0017] In the diagram: 1. Boiling chamber; 2. Hinge bracket; 3. Left photoelectric sensor; 4. Handle; 5. Cylinder; 6. Left photoelectric control board; 7. Support frame; 8. Front bearing seat; 9. Rigid discharge pipe; 10. Flexible discharge pipe; 11. Right wear-resistant liner; 12. Left sand mixing tank; 13. Right sand mixing tank; 14. Left wear-resistant liner; 15. Sand mixing spindle. Detailed Implementation

[0018] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0019] like Figure 1 As shown, this utility model provides a semi-automatic sand mixing tank for a sand mixer, which includes a support frame 7 that can be installed on the boiling box 1 of the sand mixer. A front bearing seat 8 is provided at one end of the support frame 7 away from the boiling box 1. A sand mixing main shaft 15 is rotatably installed between the front bearing seat 8 and the boiling box 1. A left sand mixing tank 12 and a right sand mixing tank 13 are provided on the outer side of the sand mixing main shaft 15.

[0020] One end of the left mixing tank 12 is hinged to the boiling tank 1, and a first linear drive pair is hinged between the left mixing tank 12 and the boiling tank 1. One end of the right mixing tank 13 is hinged to the boiling tank 1, and a second linear drive pair is hinged between the right mixing tank 13 and the boiling tank 1. Thus, the left mixing tank 12 can be rotated around the hinge axis between itself and the boiling tank 1 by the first linear drive pair, and the right mixing tank 13 can be rotated around the hinge axis between itself and the boiling tank 1 by the second linear drive pair, so as to open the entire mixing tank and facilitate the corresponding maintenance and cleaning operations by the operator.

[0021] Specifically, in this embodiment, both the first and second linear drive pairs are cylinders 5. The cylinder body of each cylinder 5 is connected to the boiling tank 1 via a hinge bracket 2, and the piston rod end of each cylinder 5 is hinged to the corresponding mixing tank via the hinge bracket 2. The corresponding mixing tank can be opened or closed by the extension and retraction of the piston rod. Furthermore, preferably, this embodiment allows for communication between the control switches electrically connected to the first and second linear drive pairs and a remote control button, enabling remote operation and reducing dust pollution caused by on-site operation.

[0022] On the other hand, a left-side photoelectric sensor 3 can be installed on the boiling chamber 1 of the sand mixer, and a left-side photoelectric control board 6 can be installed on the left mixing tank 12. The left-side photoelectric control board 6 is configured to receive the light beam emitted by the left-side photoelectric sensor 3 when the left mixing tank 12 is open, and not receive the light beam emitted by the left-side photoelectric sensor 3 when the left mixing tank 12 is closed. Similarly, a right-side photoelectric sensor can be installed on the boiling chamber 1 of the sand mixer, and a right-side photoelectric control board can be installed on the right mixing tank 13. The right-side photoelectric control board is configured to receive the light beam emitted by the right-side photoelectric sensor when the right mixing tank 13 is open, and not receive the light beam emitted by the right-side photoelectric sensor when the right mixing tank 13 is closed. In this way, the left-side photoelectric control board 6 can be electrically connected to the control module of the first linear drive pair on the left, and the right-side photoelectric control board can be electrically connected to the control module of the second linear drive pair on the right. Then, the opening and closing of the corresponding control circuits can be controlled by the electrical signals generated by the corresponding photoelectric sensors and photoelectric control boards, thereby controlling the opening angle of the corresponding mixing tanks.

[0023] The lower part of the left mixing tank 12 is provided with a discharge port, and a rigid discharge pipe 9 and a flexible discharge pipe 10 are installed from top to bottom at the discharge port.

[0024] A locking mechanism is provided between the edges of the left sand mixing trough 12 and the right sand mixing trough 13, securing them together. A handle 4 is installed on the left sand mixing trough 12 and / or the right sand mixing trough 13, assisting the operator in opening and closing the corresponding trough when necessary. Additionally, as... Figure 2 As shown, the present invention also provides a left wear-resistant liner 14 in the left sand mixing tank 12 and a right wear-resistant liner 11 in the right sand mixing tank 13. The left wear-resistant liner 14 can be embedded in the inner side of the upper edge of the right sand mixing tank 13, and the right wear-resistant liner 11 can be embedded in the inner side of the lower edge of the left sand mixing tank 12. Through this embedded installation, the left wear-resistant liner and the right wear-resistant liner achieve a sealed connection between the left sand mixing tank 12 and the right sand mixing tank 13, so as to achieve a sealing and leak-proof effect.

[0025] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A semi-automatic sand mixing tank for a sand mixer, comprising a support frame (7) that can be mounted on a boiling chamber (1) of the sand mixer, wherein a front bearing seat (8) is provided at one end of the support frame (7) away from the boiling chamber (1), and a sand mixing main shaft (15) is rotatably mounted between the front bearing seat (8) and the boiling chamber (1); characterized in that, A left sand mixing trough (12) and a right sand mixing trough (13) are provided on the outside of the sand mixing main shaft (15). One end of the left sand mixing trough (12) is hinged to the boiling box (1), and a first linear drive pair is hinged between the left sand mixing trough (12) and the boiling box (1). One end of the right sand mixing trough (13) is hinged to the boiling box (1), and a second linear drive pair is hinged between the right sand mixing trough (13) and the boiling box (1).

2. The semi-automatic sand mixing tank for a sand mixer according to claim 1, characterized in that, It also includes a left-side photoelectric sensor (3) installed on the boiling chamber (1) of the sand mixer and a left-side photoelectric control board (6) installed on the left mixing tank (12). When the left mixing tank (12) is in the open state, the left-side photoelectric control board (6) can receive the beam emitted by the left-side photoelectric sensor (3); when the left mixing tank (12) is in the closed state, the left-side photoelectric control board (6) cannot receive the beam emitted by the left-side photoelectric sensor (3); it also includes a right-side photoelectric sensor installed on the boiling chamber (1) of the sand mixer and a right-side photoelectric control board installed on the right mixing tank (13). When the right mixing tank (13) is in the open state, the right-side photoelectric control board can receive the beam emitted by the right-side photoelectric sensor; When the right mixing tank (13) is closed, the right photoelectric control board cannot receive the beam emitted by the right photoelectric sensor.

3. The semi-automatic sand mixing tank for a sand mixer according to claim 1, characterized in that, Both the first and second linear drive pairs are electrically connected to a control switch, and the control switches are communicatively connected to a remote control button.

4. The semi-automatic sand mixing tank for a sand mixer according to claim 1, characterized in that, Both the first linear drive pair and the second linear drive pair are cylinders (5). The cylinder body of the cylinder (5) is connected to the boiling chamber (1) through the hinge bracket (2). The piston rod end of the cylinder (5) is hinged to the corresponding sand mixing tank through the hinge bracket (2).

5. The semi-automatic sand mixing tank for a sand mixer according to claim 1, characterized in that, The left mixing tank (12) and / or the right mixing tank (13) are equipped with handles (4).

6. The semi-automatic sand mixing tank for a sand mixer according to claim 1, characterized in that, A discharge port is provided at the lower part of one end of the left mixing tank (12), and a rigid discharge pipe (9) and a flexible discharge pipe (10) are installed from top to bottom at the discharge port.

7. The semi-automatic sand mixing tank for a sand mixer according to claim 1, characterized in that, A locking mechanism is provided between the edge of the left mixing tank (12) and the edge of the right mixing tank (13).

8. The semi-automatic sand mixing tank for a sand mixer according to claim 1, characterized in that, A left wear-resistant liner (14) is provided in the left sand mixing tank (12), and a right wear-resistant liner (11) is provided in the right sand mixing tank (13). The left wear-resistant liner (14) can be embedded in the inner side of the upper edge of the right sand mixing tank (13), and the right wear-resistant liner (11) can be embedded in the inner side of the lower edge of the left sand mixing tank (12).

Images