Molding mechanism for casting molding sand mold

Abstract

The utility model discloses a casting molding sand mold molding mechanism which comprises a mounting plate, a plurality of connecting shells are arranged at the bottom of the mounting plate in parallel, a connecting rod is rotationally arranged in each connecting shell, and a molding press is rotationally arranged at the same end of each connecting rod; a lifting device is installed at the end, away from the forming press, of each connecting shell, each lifting device is connected with the corresponding connecting rod through a connecting plate, and the two ends of each connecting plate are hinged to the tail end of an execution shaft of the corresponding lifting device and the other end of the corresponding connecting plate correspondingly. The lifting device is used for driving the connecting plate to ascend or descend so as to drive the profiling device at the end of the connecting rod to descend or ascend. The mechanism can stabilize the precision of molding equipment, control the size change of the sand mold during displacement in the molding process, and reduce the problems of box staggering, mold expansion and the like in the movement of the sand mold.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of casting molding sand mould press type mechanism, belong to sand mould press type technical field. BACKGROUND

[0002] With the continuous development and update of casting technology, the complexity and precision requirement of product is continuously improved, and higher requirements are put forward to the precision, automation degree and stability of equipment. Under such background, combined with the characteristics of molding line equipment in production process, an effective mechanism for controlling sand mold precision is urgently needed. UTILITY MODEL CONTENT

[0003] In order to obtain good casting size and excellent casting quality, reduce the generation of defects, the utility model provides a kind of casting molding sand mould press type mechanism, which can stabilize the precision of molding equipment, control the size change of sand mold displacement in molding process, and reduce the problems such as box error and mold expansion in sand mold movement.

[0004] The utility model adopts the technical scheme that:

[0005] A kind of casting molding sand mould press type mechanism, including mounting plate, a plurality of connecting housings are arranged in parallel on the bottom of mounting plate, each connecting housing is rotatably provided with connecting rod, and the same end of connecting rod is rotatably provided with press type device;

[0006] Each end of each connecting housing away from press type device is equipped with lifting device, each lifting device and corresponding connecting rod are connected through connecting plate, and the both ends of connecting plate are respectively hinged with the end of execution shaft of corresponding lifting device and the other end of connecting plate, and lifting device is used to drive connecting plate to lift or drop to drive press type device at the end of connecting rod to drop or lift.

[0007] Preferably, a plurality of waist-type holes extending along the length direction of mounting plate are formed on mounting plate, connecting housings and mounting plate are connected through bolt assembly, and the bolt of bolt assembly is inserted through waist-type hole.

[0008] Preferably, mounting hole extending along the length direction of each connecting housing is formed on each connecting housing, and the bolt of bolt assembly is also inserted through mounting hole.

[0009] Preferably, a first pin shaft penetrating connecting rod is rotatably arranged at one end of connecting housing close to press type device, and connecting housing and connecting rod are rotatably connected through first pin shaft.

[0010] Preferably, the end of connecting rod equipped with press type device is provided with mounting groove, the top of press type device is formed with fixed part penetrating mounting groove, and fixed part and connecting rod are rotatably connected through second pin shaft.

[0011] Preferably, the lifting device is a pneumatic cylinder, an electric cylinder or a hydraulic cylinder.

[0012] The beneficial effects of the present invention are:

[0013] The lifting device drives the connecting plate to rise, which in turn drives the end of the connecting rod connected to the connecting plate to rise synchronously. Since the connecting rod is rotatably connected to the connecting shell, the other end of the connecting rod will move downward, and the press at this end will be able to press down on the sand film. Similarly, when the lifting device drives the connecting plate to descend, the press will lift upward and release the pressing state on the sand film. When used in the casting DISA molding line, this mechanism will effectively control the vertical deviation of the sand mold during the molding process, reducing problems such as box misalignment and mold expansion during sand mold movement.

[0014] At the same time, by opening waist-shaped holes on the mounting plate and mounting holes on the connecting shell, the spacing and extension length of the press can be effectively adjusted so that it can better adapt to working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the pressing mechanism;

[0016] Figure 2 It is the main view of the pressing mechanism;

[0017] Figure 3 It is a top view of the pressing mechanism.

[0018] The main reference numerals in the figures have the following meanings:

[0019] 1. Mounting plate, 2. Connecting shell, 3. Connecting rod, 4. Press, 5. Lifting device, 6. Connecting plate, 7. First pin, 8. Mounting groove, 9. Fixing part, 10. Second pin, 11. Waist-shaped hole, 12. Bolt assembly, 13. Mounting hole. DETAILED DESCRIPTION

[0020] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0021] This embodiment is a casting sand mold pressing mechanism, such as Figure 1-3 As shown, it includes a mounting plate 1, and two connecting shells 2 are arranged in parallel at the bottom of the mounting plate 1, and a connecting rod 3 is rotatably arranged in each connecting shell 2, and a press 4 is rotatably arranged at the same end of the connecting rod 3; a lifting device 5 is installed at the end of each connecting shell 2 away from the press 4, and each lifting device 5 is connected to the corresponding connecting rod 3 through a connecting plate 6, and the two ends of the connecting plate 6 are respectively hinged to the end of the actuator shaft of the corresponding lifting device 5 and the other end of the connecting plate 6; the lifting device 5 is used to drive the connecting plate 6 to lift or lower to drive the press 4 at the end of the connecting rod 3 to lower or lift.

[0022] The connecting plate 6 is lifted by the lifting device 5 to synchronously drive the end of the connecting rod 3 connected with the connecting plate 6 to follow the lifting, at this time, the other end of the connecting rod 3 will follow the lowering, and then the presser 4 at the end can press the sand film, thus, during the sand mold molding (including the reverse plate and the positive plate molding, after the presser presses the sand mold, the sand mold needs to move along a straight line (by other mechanisms on the production line)), the problems of the wrong box and the mold expansion during the sand mold movement can be reduced.

[0023] In actual application, the connecting plate 6 extends towards the direction of the execution shaft of the lifting device 5 at the top end and the bottom end, and extends to the end of the connecting rod 3 without the presser 4, and is connected with the execution shaft of the lifting device 5 and the connecting rod 3 through the pin, wherein, a slot is formed on the connecting rod 3 for the bottom end extension of the connecting plate 6 to insert, after the bottom end extension of the connecting plate 6 is inserted into the slot, the connecting plate 6 is connected through the pin, or a double lug is arranged at the end of the connecting plate 3, after the bottom end extension of the connecting plate 6 is inserted into the double lug, the connecting plate 6 is connected through the pin.

[0024] Wherein, a first pin shaft 7 penetrating the connecting rod 3 is arranged at the end of the connecting shell 2 close to the presser 4, and the connecting shell 2 is connected with the connecting rod 3 through the rotation of the first pin shaft 7; the end of the connecting rod 3 with the presser 4 is provided with an installation slot 8, and the top of the presser 4 is formed with a fixed part 9 penetrating the installation slot 8, and the fixed part 9 is connected with the connecting rod 3 through the rotation of a second pin shaft 10. The lifting device 5 is a pneumatic cylinder, an electric cylinder or a hydraulic cylinder, and is preferably a pneumatic cylinder.

[0025] In order to facilitate the adjustment of the distance and the extension length of the presser 4, a plurality of waist-shaped holes 11 extending along the length direction of the mounting plate 1 are formed on the mounting plate 1, the connecting shell 2 is connected with the mounting plate 1 through a bolt assembly 12, and the bolt in the bolt assembly 12 penetrates the waist-shaped hole 11. The mounting hole 13 extending along the length direction of the connecting shell 2 is formed on each connecting shell 2, and the bolt in the bolt assembly 12 also penetrates the mounting hole 13.

[0026] The above is only the preferred embodiment of the present application, and it should be pointed out that, for ordinary skilled in the art, without departing from the principle of the present application, some improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A casting sand mold pressing mechanism, characterized in that: It includes a mounting plate, and a plurality of connecting shells are arranged in parallel at the bottom of the mounting plate. A connecting rod is rotatably arranged in each connecting shell, and a press is rotatably arranged at the same end of the connecting rod. A lifting device is installed at the end of each connecting shell away from the press, and each lifting device is connected to the corresponding connecting rod through a connecting plate. The two ends of the connecting plate are respectively hinged to the end of the actuator shaft of the corresponding lifting device and the other end of the connecting plate. The lifting device is used to drive the connecting plate to lift or lower to drive the press at the end of the connecting rod to lower or lift.

2. A casting sand mold pressing mechanism according to claim 1, characterized in that: A plurality of waist-shaped holes extending along the length direction of the mounting plate are opened on the mounting plate. The connecting shell and the mounting plate are connected by a bolt assembly, and the bolts in the bolt assembly are inserted through the waist-shaped holes.

3. A casting sand mold pressing mechanism according to claim 2, characterized in that: A mounting hole extending along the length direction of the connecting shell is provided on each connecting shell, and the bolts in the bolt assembly are also inserted through the mounting hole.

4. A casting sand mold pressing mechanism according to claim 1, characterized in that: A first pin shaft penetrating the connecting rod is rotatably provided at one end of the connecting shell close to the forming device, and the connecting shell is rotatably connected with the connecting rod through the first pin shaft.

5. A casting sand mold pressing mechanism according to claim 1, characterized in that: The end of the connecting rod on which the press is installed is provided with an installation groove, and the top of the press is upwardly formed with a fixing part which passes through the installation groove, and the fixing part is rotatably connected to the connecting rod through a second pin shaft.

6. A casting sand mold pressing mechanism according to claim 1, characterized in that: The lifting device is a pneumatic cylinder, an electric cylinder or a hydraulic cylinder.

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