Double-station low-pressure casting machine capable of rapidly changing furnace

Abstract

The utility model relates to a double-station low-pressure casting machine capable of quickly changing a furnace, which comprises a low-pressure casting machine body, a scraper knife mechanism and a furnace changing mechanism, the furnace changing mechanism comprises a furnace changing trolley sliding along a guide rail, the furnace changing trolley is provided with two furnace changing stations, and a holding furnace placed on the furnace changing stations is changed through lifting of a lifting device. According to the utility model, the cleanliness of molten aluminum can be improved, quick furnace change is realized, the equipment stop time can be shortened, and the situation that the product casting quality is finally influenced by the heat loss of the mold caused by the equipment stop running is reduced. And the scraper knife mechanism is used for shoveling a sealing ring and residual molten aluminum at the bottom of the mold through two scraper knife heads, so that the cleaning work before the heat preservation furnace is switched is completed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a low pressure casting machine especially to a double-station quick furnace changing low pressure casting machine and belongs to the technical field of low pressure casting equipment. BACKGROUND

[0002] With the industrial upgrading of manufacturing industry, in order to keep up with the trend of the times, low pressure casting equipment also needs to be iteratively upgraded to meet the requirements of efficiency and quality today; the production efficiency of low pressure casting equipment is greatly related to the rhythm and time of aluminum liquid addition of holding furnace, and the efficiency of aluminum water addition of holding furnace is improved, which greatly improves the casting efficiency of low pressure casting machine. The product quality of castings is absolutely related to the composition of aluminum liquid and casting stability, and if the crucible casting equipment can improve the cleanliness of aluminum liquid and realize quick furnace changing, the casting quality can be improved.

[0003] Furthermore, the low pressure casting machine of the crucible furnace type needs to use a sealing gasket to seal the liquid lifting pipe opening and the mold material inlet for filling casting, and after casting is completed, the liquid lifting pipe and the mold material inlet are classified, and at this time, the sealing gasket is stuck at the bottom of the mold material inlet. Before entering the equipment after the aluminum water is added to the holding furnace, the sealing gasket and the residual aluminum liquid remaining at the bottom of the mold must be cleaned, otherwise the combination surface of the liquid lifting pipe and the mold material inlet will leak aluminum or air, resulting in the problems of aluminum running and casting unqualified.

[0004] Therefore, the utility model is provided. UTILITY MODEL CONTENT

[0005] In view of the above technical problems of the prior art, the purpose of the utility model is to provide a double-station quick furnace changing low pressure casting machine which can improve the cleanliness of aluminum liquid, realize quick furnace changing, shorten the equipment downtime, reduce the loss of mold heat due to equipment stop running, and ultimately affect the casting quality of products. The shovel mechanism removes the sealing ring and residual aluminum liquid at the bottom of the mold through two shovel heads to complete the cleaning work before the holding furnace is switched.

[0006] To achieve the above purpose, the utility model is realized by the following technical scheme:

[0007] A double-station quick furnace changing low pressure casting machine, comprising a low pressure casting machine body, a shovel mechanism and a furnace changing mechanism, the furnace changing mechanism comprises a furnace changing trolley sliding along a guide rail, the furnace changing trolley is provided with two furnace changing stations, and the holding furnace placed on the furnace changing station is lifted to realize furnace changing by a lifting device.

[0008] The lifting device comprises a lifting machine driving motor, a transmission shaft I and a transmission shaft II connected to the lifting machine driving motor, a transmission shaft III connected to the transmission shaft I through a transmission box, and a lifting turbine provided on the transmission shaft II and the transmission shaft III.

[0009] The lifting device comprises a lifting device comprising a lifting machine driving motor, a transmission shaft I and a transmission shaft II connected to the lifting machine driving motor, a transmission shaft III connected to the transmission shaft I through a transmission box, and a lifting turbine provided on the transmission shaft II and the transmission shaft III.

[0010] The lifting device comprises a lifting device comprising a lifting machine driving motor, a transmission shaft I and a transmission shaft II connected to the lifting machine driving motor, a transmission shaft III connected to the transmission shaft I through a transmission box, and a lifting turbine provided on the transmission shaft II and the transmission shaft III.

[0011] Two No. 1 crucible holding furnaces and two No. 2 crucible holding furnaces are arranged on the two furnace changing stations respectively, and the No. 1 crucible holding furnace and the No. 2 crucible holding furnace are provided with furnace covers, temperature measuring thermocouples and liquid lifting pipes with liquid lifting pipe openings.

[0012] The furnace changing trolley is provided with a drag chain, and the power supply and the gas supply of the holding furnaces are connected through the drag chain.

[0013] The shovel mechanism comprises a fixed cross beam, a shovel assembly is installed on the fixed cross beam, and a receiving hopper is arranged below the shovel assembly.

[0014] The shovel mechanism comprises a fixed cross beam, a shovel assembly is installed on the fixed cross beam, and a receiving hopper is arranged below the shovel assembly.

[0015] The shovel is vertically arranged on the driving shaft through an adjusting screw.

[0016] The receiving hopper is inserted between the two guide plates.

[0017] The double-station quick furnace changing low-pressure casting machine has the following beneficial effects:

[0018] The double work stations are prepared work stations, and the double work stations, the two preparation work stations and a casting work station on the low-pressure casting machine form a three-station rapid casting unit, so that the two preparation work stations alternately prepare aluminum liquid, and the casting work station continuously carries out casting production, thereby reducing the waiting time of equipment downtime caused by aluminum liquid adding and preparation work.

[0019] 2、The double lifting devices are arranged on the furnace changing trolley, after the furnace changing trolley is opened to the bottom of equipment, the heat preservation furnace is combined with the mold aluminum inlet on the workbench plate through the lifting device to realize the connection of the casting channel; the heat preservation furnace is provided with a furnace cover, after the heat preservation furnace is used up, the empty furnace is removed from the equipment to the heat preservation furnace switching station to replace the heat preservation furnace; and the power supply and gas supply of the heat preservation furnace are connected through the drag chain on the furnace changing trolley, and the two heat preservation furnaces are independently controlled to heat and perform the filling type operation.

[0020] 3、The double work station furnace changing trolley is connected with an aluminum liquid turnover trolley in use, the heat preservation and preparation work stations of the turnover trolley are replaced, the heat preservation after aluminum adding is prepared in advance, and after the aluminum liquid in the internal heat preservation furnace of the casting machine is used up, the replacement of the empty furnace and the full furnace is completed at the fastest speed.

[0021] 4、The shovel mechanism has two shovels, and connecting rods are arranged at two ends of the shovels, the connecting rods of the two shovels are synchronously driven through a driving device, and the effect of bidirectional scraping of the sealing ring and residual aluminum liquid at the bottom of the mold feeding port is realized; the driving device drives the connecting rods to reciprocate, the two shovels are matched with each other, and the effect of scraping the residues at the bottom of the mold in two directions is realized; and the shovel assembly is driven through the bidirectional connecting rods, after one of the shovels is flatly attached to the bottom of the mold, the other shovel is synchronously lowered to avoid.

[0022] 5、The back of the shovel is limited through the adjusting screw mounted on the driving shaft, the shovel is vertically arranged on the driving shaft, when the residues at the bottom of the mold are scraped through the vertically arranged blade, the shovel pressure is transmitted to the back driving shaft through the adjusting screw to improve the scraping strength of the shovel, so that the cleanliness of the mold bottom is improved.

[0023] 6、The bottom of the shovel assembly is provided with a receiving hopper, the sealing ring and the aluminum liquid and other residues falling in the scraping process are fallen into the bottom receiving hopper through the two side guide plates, the receiving hopper is in a pulling mode, and manual cleaning of the residues is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0025] Figure 2 It is a side view structure schematic view of the utility model;

[0026] Figure 3 It is a top view structure schematic view of the utility model;

[0027] Figure 4 It is a three-dimensional structure schematic view of the furnace changing trolley in the utility model;

[0028] Figure 5 It is a bottom structure schematic view of the furnace changing trolley in the utility model;

[0029] Figure 6 It is a structure schematic view of the lifting device in the utility model;

[0030] Figure 7 It is a structure schematic view of the trolley driving device in the utility model;

[0031] Figure 8 It is a structure schematic view of the furnace cover in the utility model;

[0032] Figure 9 It is a three-dimensional structure schematic view of the spade knife mechanism in the utility model;

[0033] Figure 10 It is an installation position schematic view of the material receiving hopper in the utility model;

[0034] Figure 11 It is a top view structure schematic view of the spade knife mechanism in the utility model;

[0035] Figure 12 It is a side view structure schematic view of the spade knife mechanism in the utility model;

[0036] Figure 13 It is Figure 12 A part enlarged structure schematic view in the utility model;

[0037] Figure 14 It is a three-dimensional structure schematic view of the spade knife assembly in the utility model;

[0038] Figure 15 It is a front view structure schematic view of the spade knife assembly in the utility model;

[0039] Figure 16 It is a side view structure schematic view of the spade knife assembly in the utility model;

[0040] 1 is the low pressure casting machine body;

[0041] 2 is the shovel mechanism, 21 is the fixed crossbeam, 22 is the receiving hopper, 23 is the shovel mounting base, 24 is the drive shaft, 25 is the shovel, 26 is the connecting rod, 27 is the drive device, 28 is the output shaft, 29 is the connecting rod mounting port, 210 is the adjusting screw, 211 is the triangular reinforcing frame, and 212 is the guide plate.

[0042] 3 is the furnace changing mechanism, 31 is the furnace changing trolley, 32 is the furnace changing station, 33 is the lifting device, 331 is the lifting drive motor, 332 is the first transmission shaft, 333 is the second transmission shaft, 334 is the transmission box, 335 is the third transmission shaft, 336 is the lifting turbine, 337 is the lifting rod, 338 is the lifting plate, 339 is the guide column, 34 is the trolley drive device, 341 is the follower wheel, 342 is the guide wheel, and 343 is the moving drive cylinder.

[0043] 4 is the guide rail; 5 is the No. 1 crucible holding furnace; 6 is the No. 2 crucible holding furnace; 7 is the furnace cover; 8 is the liquid riser inlet; 9 is the liquid riser pipe; 10 is the temperature measuring thermocouple. Detailed Implementation

[0044] The present invention will be further described below with reference to specific embodiments, but the scope of protection of the present invention is not limited thereto.

[0045] like Figures 1-8 As shown, the dual-station rapid furnace-changing low-pressure casting machine of this utility model includes a low-pressure casting machine body 1, a shovel mechanism 2, and a furnace-changing mechanism 3. The furnace-changing mechanism 2 includes a furnace-changing trolley 31 that slides along a guide rail 4. The furnace-changing trolley 31 has two furnace-changing stations 32. A No. 1 crucible holding furnace 5 and a No. 2 crucible holding furnace 6 are placed on the two furnace-changing stations 32 respectively. The No. 1 crucible holding furnace 5 and the No. 2 crucible holding furnace 6 are raised and lowered by independent lifting devices 33 to achieve furnace changing. In this embodiment, the dual workstations on the furnace changing trolley 31 are preparation workstations. The three-workstation rapid casting unit consists of two preparation workstations and one casting workstation on the low-pressure casting machine body 1. During use, the two preparation workstations alternately prepare molten aluminum, while the casting workstation continuously performs casting production, thereby reducing equipment downtime due to molten aluminum addition and preparation work. The furnace changing trolley 31 is used alternately on crucible holding furnace 5 (No. 1) and crucible holding furnace 6 (No. 2) placed on the furnace changing trolley 31. The furnace changing trolley 31 is switched between the three workstations by a trolley drive device 34 arranged on the ground. The dual-workstation structure of the furnace changing trolley 31 allows for on-site alternation to complete the switching of the three workstations, achieving the effect of rapid furnace changing and positioning.

[0046] Further, the lifting device 33 in the utility model comprises a lifting machine driving motor 331, the lifting machine driving motor 331 is connected with a transmission shaft one 332 and a transmission shaft two 333, the transmission shaft one 332 is connected with a transmission shaft three 335 through a transmission box 334 (the transmission box is the conventional gear meshing transmission, which will not be repeated here), the transmission shaft two 333 and the transmission shaft three 335 are all equipped with lifting turbine 336, the lifting turbine 336 is equipped with lifting rod 337, the lifting rod 337 is connected with lifting plate 338, and the heat preservation furnace is installed on the lifting plate 338.In the embodiment, the lifting turbine 336 is two, the two lifting turbines 336 are respectively located at both ends of the lifting plate 338, and a plurality of guide columns 339, such as two guide columns 339, are arranged below the lifting plate 338, which makes the heat preservation furnace lifting more stable.

[0047] In the embodiment, after the furnace changing trolley 31 is opened to the bottom of the equipment, the No. 1 crucible heat preservation furnace 5 and the No. 2 crucible heat preservation furnace 6 are combined with the mold aluminum inlet on the workbench plate through the corresponding lifting device 33, and the casting channel connection is completed. The No. 1 crucible heat preservation furnace 5 and the No. 2 crucible heat preservation furnace 6 are both equipped with a furnace cover 7, the furnace cover 7 is equipped with a temperature measuring thermocouple 10 and a lifting pipe 9 with a lifting pipe opening 8. After the aluminum liquid is used up, the empty furnace is removed from the equipment to the heat preservation furnace switching station for replacing the heat preservation furnace; and the furnace changing trolley 31 is equipped with a drag chain 10, and the power supply and gas supply of the heat preservation furnace are connected through the drag chain 10, and the No. 1 crucible heat preservation furnace 5 and the No. 2 crucible heat preservation furnace 6 are independently controlled for heating and filling operation.

[0048] Further, the bottom of the furnace changing trolley 31 in the utility model is equipped with a trolley driving device 34, the trolley driving device 34 comprises a plurality of follow-up wheels 341 and guide wheels 342, such as four follow-up wheels 341 and four guide wheels 342 are respectively located at both sides of the furnace changing trolley 31, and a moving driving oil cylinder 343 is arranged between the follow-up wheels 341 and the guide wheels 342, the guide wheels 342 are located on the guide rail 4, and rotate under the driving of the moving driving oil cylinder 343, so as to realize the movement of the furnace changing trolley 31.

[0049] When the utility model is used, the double-station furnace changing trolley 31 is connected with an aluminum liquid turnover trolley, and the heat preservation and preparation station heat preservation furnace are replaced through the turnover trolley, and the heat preservation after aluminum adding is prepared in advance, and after the internal heat preservation furnace of the low-pressure casting machine is used up, the empty furnace and the full furnace are replaced at the fastest speed.

[0050] Further, as shown in the drawings, Figures 9-16As shown, the shovel mechanism 2 in the utility model, including fixed crossbeam 21, fixed crossbeam 21 is installed with shovel assembly, shovel assembly below is equipped with receiving hopper 22, the both sides of receiving hopper 22 are equipped with guide plate 212, receiving hopper 22 is inserted between two guide plates 212. The seal ring and the residue such as aluminum liquid that fall in the scraping process fall in the bottom receiving hopper 22 through the both sides guide plate 212, the receiving hopper 22 is in the pull-out mode, and manual cleaning residue is convenient.

[0051] Further, the shovel assembly in the utility model includes shovel mounting seat 23, a plurality of driving shafts 24 are arranged on the shovel mounting seat 23, the driving shafts 24 in the embodiment are two, and the two driving shafts 24 are arranged side by side on the shovel mounting seat 23. A shovel 25 is arranged on each driving shaft 24, and the shovel 25 is vertically arranged on the driving shaft 24 through an adjusting screw 210. The back of the shovel 25 is limited by the adjusting screw 210 arranged on the driving shaft 24, and the shovel 25 is vertically arranged on the driving shaft 24. When the residue at the bottom of the mold is scraped by the vertically arranged blade, the pressure of the shovel 25 is transmitted to the back driving shaft 24 through the adjusting screw 210, so that the scraping strength of the shovel 25 is improved, and the cleanliness of the mold bottom scraping is improved.

[0052] Further, the both ends of the shovel 25 in the utility model are provided with connecting rods 26, the output shaft 28 of the driving device 27 is provided with a connecting rod mounting port 29, and the two connecting rods 26 are connected with the output shaft 28 of the driving device 27 in the connecting rod mounting port 29. The connecting rods 26 of the two shovels 25 are synchronously driven by one driving device 27, the effect of bidirectional scraping of the seal ring and the residual aluminum liquid at the bottom of the mold feeding port is realized, the connecting rod 26 is driven by the driving device 27, the two shovels 25 are cooperated with each other, the function of scraping the residue at the bottom of the mold in two directions is realized, the blade of one of the shovels 25 is flat with the bottom of the mold, and the other shovel 25 is synchronously lowered to avoid.

[0053] The shovel mechanism 2 is fixed on the portal frame during use, the bottom of the fixed crossbeam 21 is provided with a triangular reinforcing frame 211, the portal frame is fixed on the moving device, and the moving device reciprocates at the bottom of the casting equipment to realize the scraping operation. In the utility model, the seal ring and the residual aluminum liquid at the bottom of the mold are scraped by two shovel heads, so that the cleaning work before the switching of the holding furnace is completed.

[0054] The above embodiment is only used for explaining the inventive concept of the utility model, and is not limited to the protection of the utility model. Any non-essential modification of the utility model by using the concept should fall within the protection scope of the utility model.

Claims

1. A dual-station rapid furnace-changing low-pressure casting machine, characterized in that: It includes a low-pressure casting machine body, a shovel mechanism, and a furnace changing mechanism. The furnace changing mechanism includes a furnace changing trolley that slides along a guide rail. The furnace changing trolley has two furnace changing positions, and the holding furnace placed on the furnace changing position is raised and lowered by a lifting device to achieve furnace changing.

2. The dual-station rapid furnace-changing low-pressure casting machine as described in claim 1, characterized in that: The lifting device includes a lifting drive motor, which is connected to a first drive shaft and a second drive shaft. The first drive shaft is connected to a third drive shaft via a transmission box. Therefore, both the second and third drive shafts are equipped with lifting turbines. The lifting turbines are equipped with lifting rods, and lifting plates are connected to the lifting rods. The heat preservation furnace is installed on the lifting plates.

3. The dual-station rapid furnace-changing low-pressure casting machine as described in claim 2, characterized in that: There are two lifting turbines, which are located at both ends of the lifting plate, and several guide columns are provided below the lifting plate, with the guide columns located between the two lifting turbines.

4. The dual-station rapid furnace-changing low-pressure casting machine as described in claim 1, characterized in that: The bottom of the furnace changing trolley is equipped with a trolley drive device, which includes several follower wheels and guide wheels. The follower wheels and guide wheels are located on both sides of the furnace changing trolley, and a moving drive cylinder is provided between the follower wheels and guide wheels. The guide wheels are located on the guide rail and rotate under the drive of the moving drive cylinder to realize the movement of the furnace changing trolley.

5. The dual-station rapid furnace-changing low-pressure casting machine as described in claim 1, characterized in that: Two furnace changing stations are equipped with a No. 1 crucible holding furnace and a No. 2 crucible holding furnace, respectively. Both the No. 1 and No. 2 crucible holding furnaces are equipped with furnace covers, and the furnace covers are equipped with temperature measuring thermocouples and liquid riser pipes with liquid riser openings.

6. The dual-station rapid furnace-changing low-pressure casting machine as described in claim 5, characterized in that: The furnace changing trolley is equipped with a drag chain, and the power supply and gas supply of the holding furnace are both connected through the drag chain. Furthermore, the No. 1 crucible holding furnace and the No. 2 crucible holding furnace adopt an independent heating control and independent filling operation.

7. The dual-station rapid furnace-changing low-pressure casting machine as described in claim 1, characterized in that: The shovel mechanism includes a fixed crossbeam, on which a shovel assembly is mounted, and a receiving hopper is provided below the shovel assembly; the shovel assembly includes a shovel mounting base, on which a plurality of drive shafts are provided, and a shovel is mounted on the drive shafts; both ends of the shovel are provided with connecting rods, and the ends of the connecting rods are connected to a drive device.

8. The dual-station rapid furnace-changing low-pressure casting machine as described in claim 7, characterized in that: There are two drive shafts, which are arranged side by side on the blade mounting base. The output shaft of the drive device is provided with a connecting rod mounting port, and two connecting rods are connected to the output shaft of the drive device in the connecting rod mounting port.

9. The dual-station rapid furnace-changing low-pressure casting machine as described in claim 7, characterized in that: The blade is mounted vertically on the drive shaft via an adjusting screw.

10. The dual-station rapid furnace-changing low-pressure casting machine as described in claim 7, characterized in that: The receiving hopper is provided with guide plates on both sides, and the receiving hopper is inserted between the two guide plates.

Images