Rapid riser tube replacement mechanism for counter-pressure casting

Abstract

The utility model discloses a riser tube quick replacement mechanism for counter-pressure casting, and belongs to the field of casting production equipment. According to the rapid replacement mechanism, a workbench is fixedly arranged on a rack on the ground, a working through hole is formed in the workbench, and a heat insulation plate is arranged on the workbench and located above a heat preservation furnace; the transferring unit drives the heat preservation furnace to move below the workbench, and the upper end of the heat preservation furnace is located below the working through hole; and the replacement unit is provided with a lifting hook matched with the riser tube. The heat preservation furnace and the flange are transferred to the position below a working through hole through a transfer trolley, a worker stands for operation, and a lifting hook installs and dismantles a liquid rising pipe; when the mechanism is used, manual lifting is not needed in the operation process, safety protection fences are arranged on the periphery, and the falling condition caused by misoperation in the operation process of personnel is prevented. And the heat insulation plate is arranged at the standing position, so that the scalding risk caused under the high-temperature condition of the heat preservation furnace is prevented, and the labor intensity and the safety risk of personnel are greatly reduced.

Description

Technical Field

[0001] The utility model relates to the field of casting production equipment, in particular to a liquid riser quick replacement mechanism for differential pressure casting. Background Art

[0002] The casting machine is a general metal casting equipment. It can be widely used in the production of aluminum alloy castings in automobiles, motorcycles, instruments, textile machinery and aerospace industries. It needs to use a holding furnace for production. The holding furnace is large in size and heavy in weight. It is an important part of differential pressure casting. The upper part of the riser is connected to the mold, and the lower part is immersed in liquid metal. It is the passage for liquid metal to flow into the mold cavity. In addition to ensuring that the molten metal fills the mold, it should also ensure that the casting is fully compensated for shrinkage.

[0003] In the existing production process, the riser tube is replaced manually. This replacement method has the following problems: the weight of the riser tube is about 30 kg, which consumes a lot of physical strength for the workers; at the same time, the riser tube needs to be preheated before use, and the preheating time is generally about ten minutes and preheated to about 600 degrees. This method of use increases the physical strength of the workers and takes a long time, delaying production and being detrimental to the smooth progress of casting. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a rapid replacement mechanism for a liquid riser tube used in differential pressure casting.

[0005] The technical solution of the utility model is: a liquid riser tube quick replacement mechanism for differential pressure casting, comprising:

[0006] A frame is fixedly arranged on the ground, a workbench is fixedly arranged on the frame, a working through hole is arranged on the workbench, a heat-insulating plate is arranged on the workbench, and the heat-insulating plate is located above the heat-insulating furnace;

[0007] A transfer unit, wherein the transfer unit comprises a transfer track arranged on the ground, the transfer track extends from the outside of the frame to below the workbench, the transfer track is arranged in cooperation with a transfer wheel arranged below the insulation furnace, and the insulation furnace is driven by an external force to move below the workbench, and the upper end of the insulation furnace is located below the working through hole; and

[0008] The replacement unit comprises a fixed-column cantilever crane vertically arranged on the ground, wherein the fixed-column cantilever crane is provided with a hook matched with a liquid riser.

[0009] Furthermore, a work plate is arranged on the upper side of the workbench, the work plate includes a horizontal part and a vertical mounting part, a mounting groove is arranged on the workbench, the vertical mounting part is arranged in the mounting groove, and a gap is provided between the lower end surface of the horizontal part and the workbench, so as to ensure the stability and detachability of the installation, and also effectively improve the heat insulation effect.

[0010] Furthermore, anti-skid patterns, anti-skid pads or anti-skid protrusions are provided on the surface of the working board to ensure the safety of the staff.

[0011] Furthermore, a warning area is provided on the work board to remind workers to pay attention to safety when entering the workbench for operation.

[0012] Furthermore, guardrails are arranged around the workbench. Since the height of the insulation furnace is relatively high, the arrangement of the guardrails can ensure the safety of the workers and avoid accidents.

[0013] Furthermore, a clearance area is provided on the inner side of the guardrail, and the clearance area extends upward from the ground and exceeds the upper surface of the workbench. The provision of the clearance area can facilitate the installation and removal of the liquid riser.

[0014] Furthermore, ladders or steps are also included to facilitate workers to go up and down, especially during the replacement and preheating of the riser pipe, when workers need to go up and down at any time.

[0015] Further, the working through hole is any one of a round hole, a rectangular hole, and a U-shaped hole. Generally speaking, a round hole is more convenient.

[0016] Furthermore, upward protective protrusions are continuously arranged around the working through hole, and the height of the protective protrusions is 1-10 cm. Through the provision of the protective protrusions, workers can clearly feel the edge of the working through hole to ensure safety, while also preventing workers from accidentally slipping into the installation through hole.

[0017] Furthermore, a receiving cavity is provided in the workbench, and the heat-insulating plate is provided in the receiving cavity. This arrangement can ensure the stable existence of the heat-insulating plate and facilitate its replacement.

[0018] Furthermore, the power source of the transfer unit is a transfer vehicle.

[0019] Furthermore, the fixed-column cantilever crane comprises: a first column vertically and fixedly arranged on the ground, a second crossbar rotatably arranged on the upper end of the first column, a hook slidably arranged on the second crossbar, and a chain movably arranged between the hook and the second crossbar in the vertical direction. This structure is currently an existing device, and this application is intended to be applied, not improved.

[0020] Furthermore, a clearance gap is provided on the workbench, and a first column is provided at the clearance gap, thereby avoiding excessive space occupation of the fixed-column cantilever crane.

[0021] Furthermore, the clearance area and the clearance gap are located on both sides of the workbench. This arrangement can facilitate the operation of workers.

[0022] Furthermore, the clearance area and the step are located on the same side of the working plate or on two adjacent sides, which can reduce the movement of workers, reduce the workload, and also reduce the temperature drop after preheating.

[0023] The beneficial technical effects of the utility model are: first, the heat preservation furnace and flange are transferred to the bottom of the working through hole by using a transfer vehicle, and personnel stand to operate, and can use a hook to install and remove the required 30kg riser pipe preheated to 600 degrees for 10 minutes; using this mechanism, there is no need to lift manually during operation, and safety fences are set around to prevent personnel from falling due to operational errors during operation. In addition, the insulation board is set at the standing position to prevent the risk of scalding caused by high temperature of the heat preservation furnace, which greatly reduces the labor intensity and safety risks of personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the liquid riser tube quick replacement mechanism.

[0025] Figure 2 yes Figure 1 Schematic top view of .

[0026] Figure 3 is a schematic diagram of a transfer unit.

[0027] Figure 4 This is a schematic diagram of the workbench.

[0028] Figure 5 It is a schematic diagram of the setting of the working plate and the insulation plate.

[0029] In the figure:

[0030] 1. Rack,

[0031] 2. Workbench, 21. Installation groove, 22. Accommodation cavity, 23. Make way gap,

[0032] 3. Working through hole,

[0033] 4. Insulation board,

[0034] 5. Transfer unit, 51. Transfer track, 52. Transfer wheel,

[0035] 6. Holding furnace,

[0036] 7. Replacement unit, 71. Column-type cantilever crane, 711. First column, 712. Second crossbar, 72. Hook,

[0037] 8. working plate, 81. horizontal part, 82. vertical mounting part,

[0038] 9. Guardrail, 91. Yield zone. DETAILED DESCRIPTION

[0039] In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the specific implementation methods of the utility model are further described in detail below in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0040] See attached Figure 1-5 In this embodiment, a quick replacement mechanism for a riser tube for differential pressure casting includes: a frame 1 fixedly arranged on the ground, a workbench 2 fixedly arranged on the frame 1, a working through hole 3 arranged on the workbench 2, and a heat insulation board 4 arranged on the workbench 2, and the heat insulation board 4 is located above the heat preservation furnace 6;

[0041] The transfer unit 5 includes a transfer track 51 disposed on the ground, the transfer track 51 extends from the outside of the frame 1 to below the workbench 2, the transfer track 51 is matched with a transfer wheel 52 disposed below the insulation furnace 6, and the insulation furnace 6 is driven by an external force to move below the workbench 2, and the upper end of the insulation furnace 6 is located below the working through hole 3; and

[0042] The replacement unit 7 comprises a fixed-column cantilever crane 71 vertically arranged on the ground, and the fixed-column cantilever crane 71 is provided with a hook 72 cooperating with the liquid riser.

[0043] Furthermore, a working plate 8 is arranged on the upper side of the workbench 2, and the working plate 8 includes a horizontal portion 81 and a vertical mounting portion 82. A mounting groove 21 is arranged on the workbench 2, and the vertical mounting portion 82 is arranged in the mounting groove 21, and a gap is provided between the lower end surface of the horizontal portion 81 and the workbench 2. This ensures stable and detachable installation, and can also effectively improve the heat insulation effect.

[0044] Furthermore, anti-skid patterns, anti-skid pads or anti-skid protrusions are provided on the surface of the working plate 8 to ensure the safety of the staff.

[0045] Further, a warning area is provided on the working plate 8. Through the provision of the warning area, workers are reminded to pay attention to safety when entering the working platform 2 for operation.

[0046] Further, guardrails 9 are arranged around the workbench 2. Since the height of the holding furnace 6 is relatively high, the provision of the guardrails 9 can ensure the safety of the workers and avoid accidents.

[0047] Furthermore, a clearance area 91 is provided on the inner side of the guardrail 9, and the clearance area 91 extends upward from the ground and exceeds the upper surface of the workbench 2. The provision of the clearance area 91 can facilitate the installation and removal of the liquid riser.

[0048] Furthermore, ladders or steps are also included to facilitate workers to go up and down, especially during the replacement and preheating of the riser pipe, when workers need to go up and down at any time.

[0049] Further, the working through hole 3 is any one of a round hole, a rectangular hole, and a U-shaped hole. Generally speaking, a round hole is more convenient.

[0050] Furthermore, upward protective protrusions are continuously arranged around the working through hole 3, and the height of the protective protrusions is 1-10 cm. Through the provision of the protective protrusions, workers can clearly feel the edge of the working through hole 3, ensuring safety, and also preventing workers from accidentally slipping into the installation through hole.

[0051] Further, a receiving cavity 22 is provided in the workbench 2, and the insulation board 4 is provided in the receiving cavity 22. This arrangement can ensure the stable existence of the insulation board 4 and is convenient for replacement.

[0052] Furthermore, the power source of the transfer unit 5 is a transfer vehicle.

[0053] Furthermore, the fixed-column cantilever crane 71 comprises: a first column 711 vertically and fixedly arranged on the ground, a second crossbar 712 rotatably arranged on the upper end of the first column 711, a hook 72 slidably arranged on the second crossbar 712, and a chain movably arranged between the hook 72 and the second crossbar 712 in the vertical direction. This structure is currently an existing device, and this application is intended to be applied, not improved.

[0054] Furthermore, a clearance gap 23 is provided on the workbench 2, and a first column 711 is provided at the clearance gap 23, so as to avoid excessive space occupation of the fixed column cantilever crane 71.

[0055] Further, the clearance area 91 and the clearance gap 23 are located on both sides of the workbench 2. This arrangement can facilitate the operation of workers.

[0056] Further, the clearance area 91 and the step are located on the same side or adjacent two sides of the working plate 8. The movement of workers can be reduced, the workload can be reduced, and the temperature drop after preheating can also be reduced.

[0057] First, use a transfer vehicle to transfer the insulation furnace 6 and the flange to the bottom of the working through hole 3. The personnel stand to operate and use the hook 72 to install and remove the required 30kg riser pipe that has been preheated to 600 degrees for 10 minutes. The mechanism does not require manual lifting during operation. In addition, safety fences are set around to prevent personnel from falling due to operational errors during operation. The insulation board 4 is set at the standing position to prevent the risk of scalding caused by the high temperature of the insulation furnace 6, which greatly reduces the labor intensity and safety risks of personnel.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. A quick replacement mechanism for a riser tube for differential pressure casting, characterized in that: include: A frame (1) is fixedly arranged on the ground, a workbench (2) is fixedly arranged on the frame (1), a working through hole (3) is arranged on the workbench (2), a heat-insulating plate (4) is arranged on the workbench (2), and the heat-insulating plate (4) is located above a heat-insulating furnace (6); A transfer unit (5), the transfer unit (5) comprising a transfer track (51) arranged on the ground, the transfer track (51) extending from the outside of the frame (1) to below the workbench (2), the transfer track (51) being arranged in cooperation with a transfer wheel (52) arranged below the heat preservation furnace (6), and the heat preservation furnace (6) being driven by an external force to move below the workbench (2), and the upper end of the heat preservation furnace (6) being located below the working through hole (3); and A replacement unit (7), the replacement unit (7) comprising a fixed-column cantilever crane (71) vertically arranged on the ground, the fixed-column cantilever crane (71) being provided with a hook (72) cooperating with a liquid riser.

2. The riser tube quick replacement mechanism for differential pressure casting according to claim 1, characterized in that: A working plate (8) is arranged on the upper side of the working table (2), and the working plate (8) comprises a horizontal portion (81) and a vertical mounting portion (82). A mounting groove (21) is arranged on the working table (2), and the vertical mounting portion (82) is arranged in the mounting groove (21), and a gap is provided between the lower end surface of the horizontal portion (81) and the working table (2).

3. The riser tube quick replacement mechanism for differential pressure casting according to claim 2, characterized in that: Anti-skid patterns, anti-skid pads or anti-skid protrusions are arranged on the surface of the working plate (8).

4. The riser tube quick replacement mechanism for differential pressure casting according to claim 1, characterized in that: Guardrails (9) are arranged around the workbench (2).

5. The riser tube quick replacement mechanism for differential pressure casting according to claim 4, characterized in that: A clearance area (91) is arranged on the inner side of the guardrail (9), and the clearance area (91) extends upward from the ground and exceeds the upper surface of the workbench (2).

6. The riser tube quick replacement mechanism for differential pressure casting according to claim 1, characterized in that: Also includes ladders or steps.

7. The riser tube quick replacement mechanism for differential pressure casting according to claim 1, characterized in that: Upward protective protrusions are continuously arranged around the working through hole (3), and the height of the protective protrusions is 1-10 centimeters.

8. The riser tube quick replacement mechanism for differential pressure casting according to claim 1, characterized in that: A receiving cavity (22) is arranged in the workbench (2), and a temperature insulation plate (4) is arranged in the receiving cavity (22).

9. The riser tube quick replacement mechanism for differential pressure casting according to claim 1, characterized in that: The fixed-column cantilever crane (71) comprises: a first column (711) vertically and fixedly arranged on the ground, a second crossbar (712) rotatably arranged on the upper end of the first column (711), a hook (72) slidably arranged on the second crossbar (712), and a chain is used to movably arrange the hook (72) and the second crossbar (712) in the vertical direction.

10. The riser tube quick replacement mechanism for differential pressure casting according to claim 1, characterized in that: A clearance gap (23) is provided on the workbench (2), and a first column (711) is provided at the clearance gap (23).

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