A fully automatic sand casting molding machine

Abstract

The present invention relates to the field of casting technology, and provides a fully automatic sand casting molding machine, including a frame, a controller, a sand frame moving mechanism, a manipulator, a mold connection mechanism, a box poking mechanism, a first sand supply mechanism, a second sand supply mechanism, a first sand frame sand shooting tube, a second sand frame sand shooting tube, a first sand frame, a second sand frame, a first box closing and compacting mechanism, and a second box closing and compacting mechanism, wherein the manipulator is arranged at the front side of the first sand frame to clamp and separate the first sand frame from the first support platform and flip the first sand frame 180 degrees before sending it to the second sand frame for docking, the mold connection mechanism pushes the first sand frame, and the box poking mechanism sends the combined sand mold in the second sand frame and the first sand frame that have been docked below it to cooperate with the mold connection mechanism to demould the combined sand mold from the second sand frame and the first sand frame. The present invention solves the problems of the existing sand casting molding machine in which the sand mold is easy to break when casting straight-cylinder castings such as motor housings, the sand mold casting yield is low, the casting speed is slow and the efficiency is low.

Description

Technical Field

[0001] The invention relates to the technical field of casting, in particular to a full-automatic sand casting molding machine. Background Art

[0002] Casting is to add heated molten metal into a mold with a cavity of characteristic shape, and obtain a product with the same shape as the cavity after cooling. The most common mold is made of molding sand. The molding sand has good fluidity, is easy to shape, and is inexpensive. Steel, iron, and most non-ferrous alloy castings can be obtained by sand casting, so it is widely used in casting applications. The molding machine is a device used to produce sand molds in casting. By filling sand, loose molding sand is filled into the sand box; compacting the molding sand, the loose molding sand in the sand box is compacted by different methods such as vibration, compaction, vibration pressure, and injection pressure, so that the sand mold has the necessary strength during transportation and pouring; demolding, using different mechanisms to remove the pattern from the compacted sand mold. However, when the existing sand casting molding machine is used to mold straight-cylinder castings such as motor housings, the inner wall required by the sand mold is too long, which makes the sand mold easy to crack. The molding machine has a low sand casting yield, slow casting speed, and low efficiency. Summary of the invention

[0003] Therefore, in view of the above problems, the present invention proposes a fully automatic sand casting molding machine for straight-cylinder sand casting of motor housings, etc., which has high finished product rate, stable sand mold structure and fast casting speed.

[0004] To solve this technical problem, the present invention adopts the following scheme: a fully automatic sand casting molding machine, including a frame, a controller, a sand frame moving mechanism, a manipulator, a mold connecting mechanism, a box poking mechanism, a first sand supply mechanism, a second sand supply mechanism, a first sand frame sand shooting tube, a second sand frame sand shooting tube, a first sand frame, a second sand frame, a first box closing and compacting mechanism and a second box closing and compacting mechanism, the frame includes a base, a plurality of columns arranged on the base and a first support platform and a second support platform arranged at intervals on each column, the first support platform and the second support platform are arranged in parallel and the first support platform and the second support platform are perpendicular to the columns, the The first sand frame sand-shooting cylinder and the second sand frame sand-shooting cylinder are respectively arranged on the left and right parts of the second support platform, the first sand supply mechanism and the second sand supply mechanism are respectively arranged above the first sand frame sand-shooting cylinder and the second sand frame sand-shooting cylinder, and the sand outlets of the first sand supply mechanism and the second sand supply mechanism are respectively connected with the sand inlets of the first sand frame sand-shooting cylinder and the second sand frame sand-shooting cylinder, the first sand frame and the second sand frame are respectively detachably arranged on the left and right parts of the first support platform, and the sand inlets of the first sand frame and the second sand frame are respectively connected with the sand shooting outlets of the first sand frame sand-shooting cylinder and the second sand frame sand-shooting cylinder, and the first box closing and compacting mechanism is arranged on the frame The column is located on the left between the first support platform and the second support platform, and compacts the sand mold after sand is shot into the first sand frame. The second box closing and compacting mechanism is located on the column of the frame, and is located on the right between the first support platform and the second support platform, and compacts the sand mold after sand is shot into the second sand frame. The front edge of the right part of the second support platform extends outward to form a fixed platform. The box-poking mechanism is arranged on the fixed platform. The mold connecting mechanism is arranged on the base and is located directly below the box-poking mechanism. The sand frame moving mechanism is arranged below the fixed platform of the second support platform, and is connected to and drives the second sand frame to move to the bottom of the box-poking mechanism or send it back to the right part of the first support platform. The manipulator is arranged at the front side of the first sand frame to clamp the first sand frame to separate the first support platform, flip the first sand frame 180°, and then send it to the second sand frame for docking. The connecting mechanism pushes the first sand frame, and the box-poking mechanism sends the second sand frame and the combined sand mold in the first sand frame to the bottom thereof. The mold-connecting mechanism cooperates with the connecting mechanism to demold the combined sand mold from the second sand frame and the first sand frame. The sand frame moving mechanism, the manipulator, the connecting mechanism, the box-poking mechanism, the first sand supply mechanism, the second sand supply mechanism, the first sand frame sand shooting tube, the second sand frame sand shooting tube, the first box closing and compacting mechanism, and the second box closing and compacting mechanism are all connected to and controlled by the controller.

[0005] Furthermore, it also includes a push-mold mechanism, which is arranged on the frame at one side of the mold connecting mechanism to push the combined sand mold that has been demolded on the mold connecting mechanism to the next process, and the push-mold mechanism is connected to and controlled by a controller.

[0006] Furthermore, the controller is a PLC controller or a CNC controller.

[0007] Furthermore, a positioning pin is provided at the bottom of the second sand frame, and a pin hole matched with the positioning pin on the second sand frame is provided on the surface where the first sand frame and the second sand frame are connected.

[0008] By adopting the above technical scheme, the beneficial effect of the present invention is as follows: by dividing the straight-cylinder sand mold such as the motor housing into two parts, and combining the first sand supply mechanism, the second sand supply mechanism, the first sand frame sand shooting tube, the second sand frame sand shooting tube, the first sand frame, the second sand frame, the first box closing and compacting mechanism, and the second box closing and compacting mechanism into the sand mold that has been divided into two parts, respectively, for die-casting, and then the first sand frame is clamped and separated from the first support platform by a manipulator, and the first sand frame is turned 180° and sent to the second sand frame for docking, and the box poking mechanism sends the second sand frame and the first sand frame below the docked sand frame to the combination The sand mold matching and connecting mechanism demolds the combined sand mold from the second sand frame and the first sand frame to obtain a straight-cylindrical sand mold such as a motor housing composed of an upper and lower sand mold. The straight-cylindrical sand molds such as the motor housing have a high casting yield, a stable sand mold structure, and a fast casting speed. Through further settings, that is, the setting of the push-mold mechanism facilitates the automatic connection between the sand mold casting molding machine of the present invention and the production line. By arranging a positioning pin and a pin hole between the second sand frame and the first sand frame, the combination of the divided upper and lower sand molds is more precise, and the precise docking of the upper and lower sand molds is more effectively guaranteed, which has the value of wide promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 is a partial three-dimensional structural schematic diagram of an embodiment of the present invention;

[0010] Figure 2 It is a schematic diagram of a partial three-dimensional structure from another angle in an embodiment of the present invention. DETAILED DESCRIPTION

[0011] The present invention is further described in conjunction with the accompanying drawings and specific embodiments, wherein the controller, the sand frame moving mechanism, the manipulator, the mold connecting mechanism, the box poking mechanism, the sand supply mechanism, the sand frame sand shooting tube, the sand frame and the box closing and compacting mechanism are existing modular structural components, which have been disclosed in Chinese patent documents CN201320310337.3, a fully automatic molding machine for clay sand casting, CN201920904286.4, a vertical parting molding machine, etc., so no detailed description is given below, and only the new design in the present invention is described in detail.

[0012] refer to Figure 1 and Figure 2The preferred fully automatic sand casting molding machine of the present invention comprises a frame 1, a controller, a sand frame moving mechanism 2, a manipulator, a mold connecting mechanism 3, a box poking mechanism 4, a first sand supply mechanism 5, a second sand supply mechanism 6, a first sand frame sand shooting tube 7, a second sand frame sand shooting tube 8, a first sand frame 9, a second sand frame 10, a first box closing and compacting mechanism 13, a second box closing and compacting mechanism 11 and a mold pushing mechanism 12, wherein the frame 1 comprises a base 101, a plurality of columns 102 arranged on the base 101 and a first support platform 103 and a second support platform 104 arranged at intervals on each column 102, the first support platform 103 and the second support platform 104 are arranged in parallel and the first support platform 103 and the second support platform 104 are perpendicular to the column 102, and the first sand frame The sand-shooting cylinder 7 and the second sand-frame sand-shooting cylinder 8 are respectively arranged on the left and right parts of the second support platform 104, the first sand supply mechanism 5 and the second sand supply mechanism 6 are respectively arranged above the first sand frame sand-shooting cylinder 7 and the second sand frame sand-shooting cylinder 8, and the sand outlets of the first sand supply mechanism 5 and the second sand supply mechanism 6 are respectively connected with the sand inlets of the first sand frame sand-shooting cylinder 7 and the second sand frame sand-shooting cylinder 8, the first sand frame 9 and the second sand frame 10 are respectively detachably arranged on the left and right parts of the first support platform 103, and the sand inlets of the first sand frame 9 and the second sand frame 10 are respectively connected with the sand shooting outlets of the first sand frame sand-shooting cylinder 7 and the second sand frame sand-shooting cylinder 8, the first box closing and compacting mechanism 13 is arranged on the column 102 of the frame 1 and is located on the first support platform 103 and the second support platform 10 4 is used to compact and shape the sand mold after sand is shot into the first sand frame 9; the second box closing and compacting mechanism 11 is arranged on the column 102 of the frame 1 and is located between the first support platform 103 and the second support platform 104. The right side edge of the second support platform 104 extends outward to form a fixed platform 1041; the box-poking mechanism 4 is arranged on the fixed platform 1041; the mold connecting mechanism 3 is arranged on the base 101 and is located directly below the box-poking mechanism 4; the sand frame moving mechanism 2 is arranged below the fixed platform 1041 of the second support platform 104 to connect and drive the second sand frame 10 to move to the bottom of the box-poking mechanism 4 or return to the right side of the first support platform 103; the manipulator is arranged at the front side of the first sand frame 9 to move the first sand frame 10 The frame 9 clamps and separates the first support platform 103 and flips the first sand frame 9 180° and then sends it to the second sand frame 10 located below the box-poking mechanism 4 for docking. A positioning pin is provided at the bottom of the second sand frame 10, and a pin hole that matches the positioning pin on the second sand frame 10 is provided on the surface where the first sand frame 9 and the second sand frame 10 are docked. The mold connecting mechanism 3 pushes to the first sand frame 9, and the box-poking mechanism 4 sends the combined sand mold in the second sand frame 10 and the first sand frame 9 that have been docked below it to cooperate with the mold connecting mechanism 3 to demold the combined sand mold from the second sand frame 10 and the first sand frame 9. The mold pushing mechanism 12 is arranged on the frame 1 and on one side of the mold connecting mechanism 3 to push the combined sand mold that has been demolded on the mold connecting mechanism 3 to the next process. The controller is a PLC controller.The sand frame moving mechanism 2, the manipulator, the mold connecting mechanism 3, the box poking mechanism 4, the first sand supply mechanism 5, the second sand supply mechanism 6, the first sand frame sand shooting tube 7, the second sand frame sand shooting tube 8, the first box closing and compacting mechanism 13, the second box closing and compacting mechanism 11 and the mold pushing mechanism 12 are all connected and controlled by the controller.

[0013] The controller in the present invention may also be a CNC controller.

[0014] The present invention divides a straight-cylinder sand mold such as a motor housing into two parts, and combines a first sand supply mechanism, a second sand supply mechanism, a first sand frame sand shooting tube, a second sand frame sand shooting tube, a first sand frame, a second sand frame, a first box closing and compacting mechanism, and a second box closing and compacting mechanism into a sand mold that has been divided into two parts, and die-casts them respectively. Then, a manipulator clamps and separates the first sand frame from the first support platform, flips the first sand frame 180 degrees, and then sends it to the second sand frame for docking. The box poking mechanism sends the second sand frame that has been docked below it to cooperate with the combined sand mold in the first sand frame to be connected. The combined sand mold is demoulded from the second sand frame and the first sand frame to obtain a straight-cylindrical sand mold such as a motor housing composed of an upper and lower sand mold. The straight-cylindrical sand molds such as the motor housing have a high casting yield, a stable sand mold structure, and a fast casting speed. Through further settings, that is, the setting of the push-mold mechanism, it is convenient for the sand mold casting molding machine of the present invention to be automatically connected with the production line. By arranging a positioning pin and a pin hole between the second sand frame and the first sand frame, the combination of the divided upper and lower sand molds is more accurate, and the accurate docking of the upper and lower sand molds is more effectively guaranteed, which has the value of wide promotion and application.

[0015] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes may be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A fully automatic sand casting molding machine, comprising a frame, a controller, a sand frame moving mechanism, a manipulator, a mold connecting mechanism, a box poking mechanism, a first sand supply mechanism, a second sand supply mechanism, a first sand frame sand shooting cylinder, a second sand frame sand shooting cylinder, a first sand frame, a second sand frame, a first box closing and compacting mechanism, and a second box closing and compacting mechanism, characterized in that: The frame comprises a base, a plurality of columns arranged on the base and a first support platform and a second support platform arranged at intervals on each of the columns, the first support platform and the second support platform being arranged in parallel and the first support platform and the second support platform being perpendicular to the columns, the first sand frame sand shooting cylinder and the second sand frame sand shooting cylinder being respectively arranged on the left and right parts of the second support platform, the first sand supply mechanism and the second sand supply mechanism being respectively arranged above the first sand frame sand shooting cylinder and the second sand frame sand shooting cylinder, and the sand outlets of the first sand supply mechanism and the second sand supply mechanism are respectively connected with the sand inlet of the first sand frame sand shooting cylinder and the second sand frame sand shooting cylinder, the first sand frame and the second sand frame are respectively detachably arranged on the left and right parts of the first support platform, and the sand inlet of the first sand frame and the second sand frame are respectively connected with the sand shooting outlets of the first sand frame sand shooting cylinder and the second sand frame sand shooting cylinder, the first box closing and compacting mechanism is arranged on the columns of the frame and is located at the left part between the first support platform and the second support platform to compact and form the sand mold after sand shooting in the first sand frame, and the second box closing and compacting mechanism is arranged on the columns of the frame and is located at the first support platform The right part between the support platform and the second support platform compacts and forms the sand mold after sand injection in the second sand frame, and the front edge of the right part of the second support platform extends outward to form a fixed platform. The box-poking mechanism is arranged on the fixed platform, and the mold connecting mechanism is arranged on the base and is located directly below the box-poking mechanism. The sand frame moving mechanism is arranged below the fixed platform of the second support platform and connects and drives the second sand frame to move to the bottom of the box-poking mechanism or send it back to the right part of the first support platform. The manipulator is arranged at the front side of the first sand frame to clamp the first sand frame to separate the first support platform and press the first The sand frame is flipped 180° and sent to the second sand frame for docking. The connecting mechanism pushes against the first sand frame. The box-poking mechanism sends the second sand frame and the combined sand mold in the first sand frame to the bottom and cooperates with the connecting mechanism to demold the combined sand mold from the second sand frame and the first sand frame. The sand frame moving mechanism, the manipulator, the connecting mechanism, the box-poking mechanism, the first sand supply mechanism, the second sand supply mechanism, the first sand frame sand shooting cylinder, the second sand frame sand shooting cylinder, the first box closing and compacting mechanism and the second box closing and compacting mechanism are all connected to and controlled by the controller.

2. The fully automatic sand casting molding machine according to claim 1, characterized in that: It also includes a mold pushing mechanism, which is arranged on the frame at one side of the mold connecting mechanism to push the combined sand mold that has been demoulded on the mold connecting mechanism to the next process. The mold pushing mechanism is connected to and controlled by a controller.

3. The fully automatic sand casting molding machine according to claim 1 or 2, characterized in that: The controller is a PLC controller or a CNC controller.

4. The fully automatic sand casting molding machine according to claim 1, characterized in that: A positioning pin is provided at the bottom of the second sand frame, and a pin hole matching the positioning pin on the second sand frame is provided on a surface where the first sand frame and the second sand frame are connected.

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