Single-station hydraulic compaction molding machine

Abstract

The utility model discloses a single-station hydraulic compaction molding machine, which is characterized in that two guide rails are arranged in the middle of a rack, a molding trolley is arranged on the guide rails, and a drawing device, a pressure head device and a compaction device are respectively arranged close to two ends of the guide rails; the drawing pressure cylinder is arranged on the rack below the guide rail, a drawing table top is arranged at the upper end of a piston rod of the drawing pressure cylinder, a drawing ejector rod is arranged on the drawing table top, and an adjusting bolt is arranged at the top end of the drawing ejector rod; a pressure head pressure cylinder is arranged on the rack above the guide rail, a pressure head body is arranged at the lower end of a piston rod of the pressure head pressure cylinder, and a replaceable pressure head is arranged at the lower end of the pressure head body; and a compaction pressure cylinder is arranged on the rack below the guide rail, a lifting workbench is arranged at the upper end of a piston plate of the compaction pressure cylinder, and the lifting workbench corresponds to the replaceable pressure head up and down. The automatic casting machine is exquisite in structure, high in production efficiency, capable of improving casting quality, capable of reducing labor intensity, convenient to operate and capable of improving automation degree.

Description

Technical Field

[0001] The utility model relates to a sand mold molding machine in casting equipment, in particular to a single-station hydraulic compaction molding machine. Background Art

[0002] Metal castings are formed by a molding machine that creates a sand mold corresponding to the casting, which is then poured and cooled. The sand mold is formed by the molding machine through sand filling and compacting the loose sand. However, the existing mechanical molding machine uses pneumatic micro-vibration, which is clumsy to operate and produces deafening noise during micro-vibration. The micro-vibration molding machine requires a large amount of compressed air when working, which wastes energy. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a single-station hydraulic compaction molding machine with reasonable design, delicate structure, reduced labor intensity and easy operation.

[0004] The technical solution of the utility model is:

[0005] A single-station hydraulic compaction molding machine comprises a frame, two guide rails are arranged at intervals in the middle of the frame, a molding trolley is arranged on the guide rail, the molding trolley moves back and forth on the guide rail under the action of a push-pull pressure cylinder, a demoulding device is arranged at one end close to the guide rail, and a pressure head device and a compaction device are arranged at the other end close to the guide rail; the demoulding device comprises a demoulding pressure cylinder, the demoulding pressure cylinder is arranged on the frame below the guide rail, a demoulding table is arranged at the upper end of the piston rod of the demoulding pressure cylinder, and the demoulding table A demoulding push rod is arranged on the surface, and an adjusting bolt is arranged on the top of the demoulding push rod; the ram device includes a ram pressure cylinder, which is arranged on the frame above the guide rail, and a ram body is arranged at the lower end of the piston rod of the ram pressure cylinder, and a replaceable ram is arranged at the lower end of the ram body; the compacting device includes a compacting pressure cylinder, which is arranged on the frame below the guide rail, and a lifting workbench is arranged on the upper end of the piston plate of the compacting pressure cylinder, and the lifting workbench corresponds to the replaceable ram up and down.

[0006] Furthermore: a demolding guide mechanism is arranged between the demolding table and the frame, the demolding guide mechanism includes a guide rod, a guide sleeve and a guide seat, the guide seat is arranged on the frame, the guide seat is sleeved with the guide sleeve, the guide sleeve is sleeved with the guide rod, and the upper end of the guide rod is connected to the lower end of the demolding table.

[0007] Furthermore: a lifting guide mechanism is arranged between the lifting workbench and the frame, the lifting guide mechanism includes a guide rod and a guide sleeve, the guide sleeve is arranged on the frame, the guide rod is sleeved in the guide sleeve, and the upper end of the guide rod is connected to the lower end of the lifting workbench.

[0008] Furthermore: a pressure head guide mechanism is arranged between the pressure head body and the frame, and the pressure head guide mechanism includes a guide rod and a guide sleeve. The guide sleeve is arranged on the frame, and the guide rod is sleeved in the guide sleeve. The lower end of the guide rod is connected to the upper end of the pressure head body.

[0009] Furthermore: the end faces of the two guide rails are square and V-shaped respectively, and correspondingly, the running wheels at the lower end of the modeling trolley are square and V-shaped respectively, and the two match each other to play a guiding role. A template frame is provided on the modeling trolley.

[0010] Furthermore: the frame is connected by a base, columns and beams, the columns include two long columns and two short columns, wherein the two long columns are located on both sides of the compaction station and are connected to the beams, the two short columns are connected to the guide rails, and a bracket is provided at the rear of the frame, and the bracket is connected to the cylinder body of the push-pull pressure cylinder.

[0011] Furthermore: the replaceable pressure head is movably connected to the pressure head body via connecting bolts, and all types of pressure cylinders can be hydraulic cylinders or pneumatic cylinders.

[0012] Furthermore: a power device is arranged on the frame, and the power device includes a hydraulic power unit, a valve group, an oil tank and an accumulator, and can provide power to various pressure cylinders through a controller.

[0013] The beneficial effects of the utility model are:

[0014] 1. The utility model is characterized by exquisite structure, high production efficiency, improved casting quality, reduced labor intensity, easy operation and the ability to achieve automation.

[0015] 2. The utility model adopts the working mode of hydraulic lifting of the workbench and compaction of the shaping head. The sand mold cavity surface produced has high strength, which can effectively control the amount of casting expansion during pouring, ensure the accuracy of the casting, and reduce the amount of machining.

[0016] 3. The frame of the utility model is an integrated frame structure, which is easy to manufacture and can be processed accurately, ensuring that the molding machine has sufficient strength and rigidity when compacting.

[0017] 4. The primary cylinder lifting of the compacting device of the utility model adopts an accumulator to supply oil, so as to achieve rapid lifting. During compaction, the oil pump increases the pressure to achieve sand mold compaction, thereby improving work efficiency.

[0018] 5. The utility model adopts an automatic demoulding method, in which four demoulding ejector rods contact and lift the sand box and the sand mold at the same time, eliminating manual intervention and effectively preventing the waste mold caused by deviation or shaking during the manual demoulding process.

[0019] 6. The utility model has reasonable design, high production efficiency, easy operation and can ensure the accuracy of castings. It is easy to promote and implement and has good economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a single-station hydraulic compaction molding machine;

[0021] Figure 2 for Figure 1 A left side view of a single-station hydraulic compaction molding machine is shown;

[0022] Figure 3 for Figure 1 Schematic diagram of the structure of the middle rack;

[0023] Figure 4 for Figure 3 Left side view of the rack shown;

[0024] Figure 5 for Figure 1 The structural schematic diagram of the middle demoulding device;

[0025] Figure 6 for Figure 5 A left side view of the demoulding device shown;

[0026] Figure 7 for Figure 1 The schematic diagram of the structure of the medium-sized car;

[0027] Figure 8 for Figure 7 A left side view of the model car shown;

[0028] Fig. 9 for Figure 1 Schematic diagram of the structure of the medium pressure head;

[0029] Fig.10 for Figure 1 A schematic diagram of the structure of the medium compaction device;

[0030] Fig.11 for Figure 1 Schematic diagram of the hydraulic system; DETAILED DESCRIPTION

[0031] Example 1: See Figure 1 -- Fig.11In the figure, I-frame, II-mold removal device, III-molding trolley, IV-pressing head device, V-hydraulic compacting device, VI-power device, 1-machine base, 2-short column, 3-long column, 4-crossbeam, 5-bracket, 6-square guide rail, 7-V-shaped guide rail, 8-mold removal table, 9-mold removal push rod, 10-adjusting bolt, 11-cylinder seat, 12-cylinder, 13-guide seat, 14-guide sleeve, 15-guide rod, 16-mold plate frame, 17-trolley body, 18-flat wheel, 19-V-shaped wheel, 20-interchangeable press head, 21-pressing head body, 22-guide rod, 23-oil cylinder, 24-guide sleeve, 25-lifting workbench, 26-hydraulic power unit, 27-valve group, 28-oil tank, 29-accumulator.

[0032] 1. Number of workstations: 1;

[0033] 2. System pressure: 8~12MPa adjustable;

[0034] 3. Production cycle: 15s / model;

[0035] 4. Compaction method: hydraulic lifting, contour pressing head compaction;

[0036] The main parts of the equipment can be divided into seven parts: I, frame, II, demoulding device, III, molding trolley, IV, pressure head device, V, hydraulic compaction device, VI, power device.

[0037] 1. Frame:

[0038] The frame is the main structure of the equipment, which is used to install other fixings and the frame that carries the moving parts, support the operation of the equipment and withstand the compaction force generated during compaction. It consists of a base 1, a short column 2, a long column 3, a crossbeam 4, a bracket 5, a square guide rail 6, and a V-shaped guide rail 7. Each structural member is connected to the frame by welding or bolts to ensure that the molding machine has sufficient strength and rigidity during compaction. The guide rails use square guide rails and V-shaped guide rails, which have both guiding and bearing functions.

[0039] (II) Demolding device:

[0040] The demolding device is used to lift and compact the sand mold to separate it from the mold, and ensure smooth demolding and that the sand mold is intact. The demolding power comes from the lifting cylinder. The cylinder 12 is connected to the demolding table through the connecting flange 11. The demolding platform is equipped with a demolding ejector rod. The upper end of the ejector rod has an adjustable bolt 10, which is used to adjust the demolding point to contact the sand box at the same time to ensure smooth separation of the sand mold and the mold. The entire demolding device is smoothly lifted and lowered through four guide rods 15 and the guide seat 13 and guide sleeve 14 fixed on the base 1 to complete the demolding function.

[0041] (III) Modeling car:

[0042] The molding trolley is used to carry the sand box and the sand mold. It is driven by the cylinder to shuttle between the demolding station and the compacting station, thus completing the repetitive operation of production.

[0043] The modeling car is composed of a template frame 16, a car body 17, flat wheels 18, and V-shaped wheels 19.

[0044] The mold frame 16 is placed above the car body 17. The flat wheels 18 and V-shaped wheels 19 connected to the car body 17 carry the mold frame 16 and the car body 17 to reciprocate on the flat wheel guide rails 6 and the V-shaped guide rails 7. Sand adding and demolding are completed at the demolding station, and sand mold compaction and molding are completed at the compacting station.

[0045] (IV) Compacting device:

[0046] The compacting device is fixed to the crossbeam 4 and is located directly above the hydraulic compacting device V. Its function is to squeeze the molding sand in the sand box relative to the hydraulic compacting device V to complete the loose sand molding. The compacting device consists of a replaceable pressure head 20 and a pressure head body 21. The replaceable pressure head 20 can be replaced in real time according to the size of the sand box and the shape of the sand mold. The replaceable pressure head 20 has a simple and practical structure and does not require maintenance during use.

[0047] (V) Hydraulic compaction device:

[0048] The hydraulic compaction device is used to support the product mold frame and the mold to rise and fall. When the molding trolley III carries the sand box and the molding sand in the compaction station, the oil cylinder rises and compacts to reach the set compaction pressure. The molding sand is compacted and formed to meet the process strength requirements, and the oil cylinder returns. The hydraulic workbench adopts a four-guide column structure to effectively ensure smooth reciprocating operation. The device consists of a guide rod 22, a cylinder 23, a guide sleeve 24, and a table 25.

[0049] (VI) Hydraulic system:

[0050] The hydraulic system is the power output unit of the equipment. The motor drives the oil pump to output pressure oil for modeling and compaction of the equipment. The valve group controls the lifting and lowering of the oil cylinder and the energy storage and release of the accumulator, driving the lifting and lowering of the oil cylinder to complete the compaction function of the hydraulic compaction device.

[0051] The hydraulic system includes a hydraulic power unit 26 , a valve group 27 , an oil tank 28 , and an accumulator 29 .

[0052] The whole set of equipment only needs one person to operate. It effectively reduces the number of personnel and labor, improves the production environment, and improves the health of workers. This type of hydraulic compaction molding machine is very suitable for the production of medium and small parts, with low equipment investment and quick results for enterprises. It is an excellent equipment that can be selected by enterprises that want to replace manual production and transformation.

[0053] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any simple modification made according to the technical essence of the utility model still falls within the scope of the technical solution of the utility model.

Claims

1. A single-station hydraulic compaction molding machine, comprising a frame, characterized in that: Two guide rails are arranged at intervals in the middle of the frame, and a modeling trolley is arranged on the guide rails. The modeling trolley moves back and forth on the guide rails under the action of a push-pull pressure cylinder. A demoulding device is arranged at one end close to the guide rail, and a pressure head device and a compacting device are arranged at the other end close to the guide rail respectively; the demoulding device comprises a demoulding pressure cylinder, and the demoulding pressure cylinder is arranged on the frame below the guide rail. A demoulding table is arranged at the upper end of the piston rod of the demoulding pressure cylinder, and a demoulding ejector rod is arranged on the demoulding table. , an adjusting bolt is provided at the top end of the demoulding push rod; the pressing head device includes a pressing head pressure cylinder, which is arranged on the frame above the guide rail, a pressing head body is provided at the lower end of the piston rod of the pressing head pressure cylinder, and a replaceable pressing head is provided at the lower end of the pressing head body; the compacting device includes a compacting pressure cylinder, which is arranged on the frame below the guide rail, a lifting workbench is provided at the upper end of the piston plate of the compacting pressure cylinder, and the lifting workbench corresponds to the replaceable pressing head up and down.

2. A single-station hydraulic compaction molding machine according to claim 1, characterized in that: A demoulding guide mechanism is arranged between the demoulding table and the frame, and the demoulding guide mechanism includes a guide rod, a guide sleeve and a guide seat. The guide seat is arranged on the frame, the guide sleeve is installed in the guide seat, the guide rod is installed in the guide sleeve, and the upper end of the guide rod is connected to the lower end of the demoulding table.

3. A single-station hydraulic compaction molding machine according to claim 1, characterized in that: A lifting guide mechanism is arranged between the lifting workbench and the frame, and the lifting guide mechanism comprises a guide rod and a guide sleeve. The guide sleeve is arranged on the frame, the guide rod is sleeved in the guide sleeve, and the upper end of the guide rod is connected to the lower end of the lifting workbench.

4. A single-station hydraulic compaction molding machine according to claim 1, characterized in that: A pressure head guide mechanism is arranged between the pressure head body and the frame, and the pressure head guide mechanism includes a guide rod and a guide sleeve. The guide sleeve is arranged on the frame, the guide rod is sleeved in the guide sleeve, and the lower end of the guide rod is connected to the upper end of the pressure head body.

5. The single-station hydraulic compaction molding machine according to claim 1 is characterized in that: The end faces of the two guide rails are square and V-shaped respectively. Correspondingly, the running wheels at the lower end of the modeling trolley are square and V-shaped respectively. The two match each other and play a guiding role. A template frame is provided on the modeling trolley.

6. The single-station hydraulic compaction molding machine according to claim 1 is characterized in that: The frame is connected by a base, columns and beams, the columns include two long columns and two short columns, wherein the two long columns are located on both sides of the compaction station and are connected to the beams, the two short columns are connected to the guide rails, and a bracket is provided at the rear of the frame, and the bracket is connected to the cylinder body of the push-pull pressure cylinder.

7. The single-station hydraulic compaction molding machine according to claim 1 is characterized in that: The replaceable pressure head is movably connected to the pressure head body via connecting bolts, and various pressure cylinders can be hydraulic cylinders or pneumatic cylinders.

8. The single-station hydraulic compaction molding machine according to claim 1 is characterized in that: The frame is provided with a power device, which includes a hydraulic power unit, a valve group, an oil tank and an accumulator, and can provide power to various pressure cylinders through a controller.

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