Waste discharge device for lost foam casting manufacturing model

Abstract

The utility model discloses a waste discharge device for a lost foam casting manufacturing model. The waste discharge device comprises a treatment box, an extension pipe, a gas-collecting hood, a conical seat, a pouring guide sleeve and a gas pump, according to the waste discharge device for the lost foam casting manufacturing model, one side of the lower portion of a treatment box is fixedly connected with an extension pipe, the end of the extension pipe is fixedly connected with a gas collecting hood, the middle of the gas collecting hood is fixedly connected with a conical seat in a penetrating mode, and the bottom of the conical seat is fixedly connected with the inner wall of the gas collecting hood through a connecting rod; a pouring guide sleeve matched with the conical base is arranged on the inner side of the conical base, the two ends of the pouring guide sleeve extend out of the conical base, the pouring guide sleeve corresponds to a pouring opening of the forming box, the top of the forming box is covered with the gas collecting hood, the pouring guide sleeve is placed through the conical base, and therefore pouring can be conducted through the pouring guide sleeve during pouring. The gas collecting hood is still arranged at the top of the forming box for exhaust gas suction, and exhaust gas diffusion in the initial stage of pouring is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of lost foam casting production, in particular to a waste discharge device for lost foam casting production models. Background Art

[0002] Lost foam casting (also known as full-mold casting) is a new casting method that uses foam plastic (EPS, STMMA or EPMMA) polymer material to make a full-mold mold with the same structure and size as the part to be cast. After being dipped in refractory coating (for strengthening, smoothing and breathability) and dried, it is buried in dry quartz sand and subjected to three-dimensional vibration molding. The molten metal is poured into the casting sand box under negative pressure, so that the polymer material model is heated, vaporized and extracted, and then replaced by liquid metal after cooling and solidification to form a one-time molding new casting process.

[0003] Lost foam casting has the following characteristics: 1. Good casting quality and low cost; 2. Unlimited material and suitable for all sizes; 3. High precision, smooth surface, less cleaning, and less machining; 4. Greatly reduced internal defects and dense castings; 5. Large-scale and mass production can be achieved; 6. Suitable for mass production of the same castings; 7. Suitable for manual operation and automated assembly line production and operation control; 8. The production status of the production line meets the requirements of environmental protection technical parameter indicators; 9. It can greatly improve the working environment and production conditions of the casting production line, reduce labor intensity, and reduce energy consumption.

[0004] In the prior art with the publication (announcement) number: CN215742516U, a waste discharge device for making models for lost foam casting is proposed, comprising a molding box and a base plate, the molding box is located above the base plate, one side of the molding box is provided with a mounting frame, the mounting frame is connected to the base plate, the outer side of the mounting frame is provided with a motor, the motor is connected to the mounting frame, one side of the motor is provided with a rotating shaft, the rotating shaft is connected to the output end of the motor, the outer side of the rotating shaft is provided with a purification filter, the purification filter is connected to the rotating shaft, and one side of the purification filter is provided with an isolation net. Through the waste discharge device for making models for lost foam casting provided by the present application, the waste gas generated by molding can be collected, and compared with the method of directly discharging the waste gas, the waste discharge device provided by the present application has the advantages of being able to easily recover the waste gas generated by the polymer material, and also being able to easily adjust the position of waste gas collection.

[0005] In the above-mentioned prior art, the waste gas generated by molding is collected by an air collecting pipe. However, when the end of the air collecting pipe covers the pouring port of the molding box, it will affect the pouring. When the corresponding collection is performed after pouring, a large amount of waste gas will not be collected and will diffuse. Therefore, a new waste discharge device for lost foam casting model making is proposed to optimize the above-mentioned prior art. Utility Model Content

[0006] The utility model aims to provide a waste discharge device for lost foam casting model making to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A waste discharge device for making models in lost foam casting comprises a molding box and a treatment box arranged outside the molding box, an extension pipe is fixedly connected to one side of the lower part of the treatment box, an air collecting hood is fixedly connected to the end of the extension pipe, a conical seat is passed through and fixedly connected to the middle of the air collecting hood, the bottom of the conical seat is fixedly connected to the inner wall of the air collecting hood by a connecting rod, a casting guide sleeve matching the conical seat is provided on the inner side of the conical seat, both ends of the casting guide sleeve extend out of the conical seat, and the casting guide sleeve corresponds to the casting port of the molding box.

[0009] As a further solution of the utility model: two partitions are fixedly connected in parallel inside the processing box, a filter assembly is provided between the partitions, an air pump is fixedly connected to the top of the processing box, inspection ports are opened at corresponding positions of the processing box and the filter assembly, an inspection cover is provided at the inspection port, and the inspection cover is fixedly installed to the processing box by bolts.

[0010] As a further solution of the utility model: a support box is provided at the bottom of the processing box, and the bottom of the support box is open. A movable plate matching with the support box is slidably connected to the inner side of the support box. Guide rods slide through the four corners of the movable plate. The four corners of the movable plate are provided with through holes for the guide rods to pass through and slide. Both ends of the guide rods are fixedly connected to the inner wall of the support box, and the bottom end of the movable plate is fixedly connected to the supporting base plate through a vertical rod. Casters are fixedly installed on the bottom of the supporting base plate.

[0011] As a further solution of the utility model: a threaded rod passes through the middle thread of the movable plate, a threaded hole for threaded connection of the threaded rod is opened on the movable plate, both ends of the threaded rod are rotatably connected to the inner wall of the support box, a worm gear is fixedly connected to the outer side of the top end of the threaded rod, and a worm gear meshing with the worm gear is provided on the outer side of the worm gear.

[0012] As a further solution of the utility model: both ends of the worm are rotatably mounted on the inner wall of the support box, one end of the worm is fixedly connected to the first bevel gear after passing through the support box, a second bevel gear meshing with the first bevel gear is provided on the outer side of the first bevel gear, a motor is fixedly connected to the lower part of the support box corresponding to the second bevel gear, and the output end of the motor is fixedly connected to the second bevel gear.

[0013] As a further solution of the utility model: the partition is provided with a connecting hole at the location corresponding to the filter assembly, the filter assembly includes a positioning frame, the top sliding sleeve of the positioning frame is provided with a positioning cover, the top inner side of the positioning cover and the bottom inner side of the positioning frame are fixedly connected with a grid, a honeycomb activated carbon filter element is provided in the positioning frame, the positioning frame and the positioning cover are partially inserted into the connecting hole, the edges of the positioning cover and the positioning frame are fixedly connected with a stop plate, and the stop plate is fixedly mounted on the corresponding partition by bolts.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model arranges the gas collecting hood on the top of the forming box, and places the casting guide sleeve through the conical seat, so that casting can be carried out through the casting guide sleeve during casting, and the gas collecting hood is still arranged on the top of the forming box to extract the waste gas, which effectively avoids the diffusion of waste gas in the initial stage of casting.

[0016] 2. The utility model moves the device by casters, so as to facilitate the adjustment of the correspondence between the air collecting hood and the molding box. The motor cooperates with the first gear and the second gear to drive the worm to rotate, and the worm wheel cooperates to drive the threaded rod to rotate, thereby controlling the movable plate to move up and down along the guide rod, controlling the height of the air collecting hood, and facilitating the adaptation of the height of the air collecting hood to the height of the molding box.

[0017] 3. The utility model installs the filter assembly by setting a partition. The positioning frame and positioning cover of the filter assembly are inserted into the connecting hole of the partition for positioning. The stop plate is matched with bolts to form a detachable installation. At the same time, the gap cover plate can be removed, thereby facilitating the disassembly of the filter assembly and the replacement of the honeycomb activated carbon filter element, which is convenient for the maintenance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention is a structural schematic diagram of a waste discharge device for making models in lost foam casting.

[0019] Figure 2 This is a front schematic diagram of a waste discharge device for making models for lost foam casting.

[0020] Figure 3 A bottom view of the partial structure of a waste discharge device for making a lost foam casting model.

[0021] In the figure: 1. forming box; 2. processing box; 3. extension pipe; 4. air collecting hood; 5. conical seat; 6. casting guide sleeve; 7. air pump; 8. inspection cover; 9. support box; 10. movable plate; 11. guide rod; 12. support bottom plate; 13. threaded rod; 14. worm gear; 15. worm; 16. first bevel gear; 17. second bevel gear; 18. motor; 19. partition; 20. connecting hole; 21. positioning frame; 22. positioning cover; 23. grid; 24. honeycomb activated carbon filter element; 25. stop plate; 26. filter assembly; 27. caster. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figures 1 to 3 In the embodiment of the utility model, a waste discharge device for making a model for lost foam casting includes a molding box 1 and a processing box 2 arranged outside the molding box 1, an extension pipe 3 is fixedly connected to one side of the lower part of the processing box 2, an end of the extension pipe 3 is fixedly connected to an air collecting hood 4, a conical seat 5 is fixedly connected through the middle of the air collecting hood 4, the bottom of the conical seat 5 is fixedly connected to the inner wall of the air collecting hood 4 through a connecting rod, a casting guide sleeve 6 matched with the conical seat 5 is provided on the inner side of the conical seat 5, both ends of the casting guide sleeve 6 extend out of the conical seat 5, and the casting guide sleeve 6 corresponds to the casting port of the molding box 1.

[0024] A support box 9 is provided at the bottom of the processing box 2. The bottom of the support box 9 is open. A movable plate 10 matching with the support box 9 is slidably connected to the inner side of the support box 9. Guide rods 11 slide through the four corners of the movable plate 10. The four corners of the movable plate 10 are provided with through holes for the guide rods 11 to penetrate and slide. Both ends of the guide rods 11 are fixedly connected to the inner wall of the support box 9. The bottom end of the movable plate 10 is fixedly connected to the support base plate 12 through a vertical rod. The bottom of the support base plate 12 is fixedly installed with a caster 27, which is a universal brake caster.

[0025] A threaded rod 13 is threaded through the middle thread of the movable plate 10, and a threaded hole for threaded connection of the threaded rod 13 is opened on the movable plate 10. Both ends of the threaded rod 13 are rotatably connected to the inner wall of the support box 9. A worm gear 14 is fixedly connected to the outer side of the top end of the threaded rod 13, and a worm 15 is provided on the outer side of the worm gear 14 to mesh with it.

[0026] Both ends of the worm 15 are rotatably mounted on the inner wall of the support box 9. One end of the worm 15 passes through the support box 9 and is fixedly connected to a first bevel gear 16. A second bevel gear 17 meshing with the first bevel gear 16 is provided on the outer side of the first bevel gear 16. A motor 18 is fixedly connected to the lower part of the support box 9 corresponding to the second bevel gear 17, and the output end of the motor 18 is fixedly connected to the second bevel gear 17.

[0027] The air collecting hood 4 is arranged on the top of the molding box 1, and the pouring guide sleeve 6 is placed through the conical seat 5, so that pouring can be carried out through the pouring guide sleeve 6 during pouring. The air collecting hood 4 is still arranged on the top of the molding box 1 to extract the exhaust gas, which effectively avoids the diffusion of the exhaust gas in the initial stage of pouring.

[0028] The device is moved by casters 27 to facilitate adjustment of the air collecting hood 4 to correspond to the molding box 1. The motor 18 cooperates with the first gear 16 and the second gear 17 to drive the worm 15 to rotate, and the worm wheel 14 cooperates to drive the threaded rod 13 to rotate, thereby controlling the movable plate 10 to move up and down along the guide rod 11, controlling the height of the air collecting hood 4, and facilitating the adaptation of the height of the air collecting hood 4 to the height of the molding box 1.

[0029] Two partitions 19 are fixedly connected in parallel inside the processing box 2, a filter assembly 26 is provided between the partitions 19, an air pump 7 is fixedly connected to the top of the processing box 2, and an inspection port is opened at the corresponding position of the processing box 2 and the filter assembly 26, and an inspection cover 8 is provided at the inspection port, and the inspection cover 8 is fixedly installed with the processing box 2 by bolts.

[0030] A connecting hole 20 is provided at the location of the partition 19 corresponding to the filter assembly 26. The filter assembly 26 includes a positioning frame 21. The top sliding sleeve of the positioning frame 21 is provided with a positioning cover 22. The top inner side of the positioning cover 22 and the bottom inner side of the positioning frame 21 are fixedly connected with a grid 23. A honeycomb activated carbon filter element 24 is provided in the positioning frame 21. The positioning frame 21 and the positioning cover 22 are partially inserted into the connecting hole 20. The edges of the positioning cover 22 and the positioning frame 21 are fixedly connected with a stop plate 25. The stop plate 25 is fixedly installed on the corresponding partition 19 by bolts.

[0031] The filter assembly 26 is installed by setting the partition 19, and the positioning frame 21 and the positioning cover 22 of the filter assembly 26 are inserted into the connecting hole 20 of the partition 19 for positioning. The stop plate 25 is bolted together to form a detachable installation. At the same time, the gap cover plate 8 can be removed, thereby facilitating the disassembly of the filter assembly 26 and the replacement of the honeycomb activated carbon filter element 24, thereby facilitating the maintenance of the device.

[0032] The air pump 7 and the motor 18 are both externally connected to a power source and a switch.

[0033] The working principle of the utility model is:

[0034] When in use, the processing box 2 is moved to the outside of the molding box 1 by the casters 27, and the second bevel gear 17 at the driving end of the motor 18 is rotated. The second bevel gear 17 drives the worm 15 to rotate through the first bevel gear 16, and the worm 15 drives the threaded rod 13 to rotate through the worm gear 14, so as to mobilize the movable plate 10 to move up and down along the guide rod 11, thereby controlling the extension of the supporting bottom plate 12, thereby adjusting the supporting height of the device, so that the air collecting hood 4 is adapted to the height of the molding box 1. At this time, the device can be moved by the casters 27 so that the air collecting hood 4 covers the molding box 1. At this time, the casters 27 are self-locked, and the casting guide sleeve 6 is placed in the conical seat 5. At the same time, the air pump 7 is started, and the air pump 7 drives the air to be drawn in and discharged. The casting guide sleeve 6 is placed in the conical seat 5 for casting and manufacturing. At this time, the exhaust gas generated is sucked away through the air collecting hood 4, and at the same time enters the processing box 2 through the extension pipe 3. The exhaust gas is adsorbed and purified by the honeycomb activated carbon filter element 24 and finally discharged.

[0035] After using it for a period of time, the inspection cover 8 can be removed, the stop plate 25 can be removed from the partition 19, and the positioning cover 22 and the positioning frame 21 can be brought close to each other so that the positioning frame 21 and the positioning cover 22 can be pulled out from the connecting hole 20. At this time, the filter assembly 26 can be taken out, the positioning cover 22 can be removed, and the honeycomb activated carbon filter element 24 can be replaced.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A waste discharge device for lost foam casting model making, comprising a molding box (1) and a processing box (2) arranged outside the molding box (1), characterized in that: An extension pipe (3) is fixedly connected to one side of the lower part of the processing box (2), and an end of the extension pipe (3) is fixedly connected to an air collecting hood (4). A conical seat (5) is fixedly connected to the middle of the air collecting hood (4), and the bottom of the conical seat (5) is fixedly connected to the inner wall of the air collecting hood (4) via a connecting rod. A casting guide sleeve (6) matching the conical seat (5) is provided on the inner side of the conical seat (5), and both ends of the casting guide sleeve (6) extend out of the conical seat (5).

2. A waste discharge device for lost foam casting model making according to claim 1, characterized in that: Two partitions (19) are fixedly connected in parallel inside the processing box (2), a filter assembly (26) is arranged between the partitions (19), an air pump (7) is fixedly connected to the top of the processing box (2), an inspection opening is opened at the corresponding position of the processing box (2) and the filter assembly (26), an inspection cover (8) is arranged at the inspection opening, and the inspection cover (8) is fixedly installed with the processing box (2) by bolts.

3. A waste discharge device for lost foam casting model making according to claim 1, characterized in that: A support box (9) is provided at the bottom of the processing box (2), and a movable plate (10) adapted thereto is slidably connected to the inner side of the support box (9), and guide rods (11) are slidably penetrated through the four corners of the movable plate (10), and both ends of the guide rods (11) are fixedly connected to the inner wall of the support box (9), and the bottom end of the movable plate (10) is fixedly connected to a support base plate (12) via a vertical rod, and casters (27) are fixedly installed at the bottom of the support base plate (12).

4. A waste discharge device for lost foam casting model making according to claim 3, characterized in that: A threaded rod (13) is threadedly penetrated through the middle of the movable plate (10), and both ends of the threaded rod (13) are rotatably connected to the inner wall of the support box (9). A worm gear (14) is fixedly connected to the outer side of the top end of the threaded rod (13), and a worm (15) meshing with the worm gear (14) is provided on the outer side.

5. A waste discharge device for lost foam casting model making according to claim 4, characterized in that: Both ends of the worm (15) are rotatably mounted on the inner wall of the support box (9); one end of the worm (15) passes through the support box (9) and is fixedly connected to a first bevel gear (16); a second bevel gear (17) meshing with the first bevel gear (16) is provided on the outer side of the first bevel gear (16); a motor (18) is fixedly connected to the lower side of the support box (9) corresponding to the second bevel gear (17); and an output end of the motor (18) is fixedly connected to the second bevel gear (17).

6. A waste discharge device for lost foam casting model making according to claim 2, characterized in that: The partition (19) is provided with a connecting hole (20) at a position corresponding to the filter assembly (26). The filter assembly (26) comprises a positioning frame (21). A positioning cover (22) is provided on the top sliding sleeve of the positioning frame (21). A grid (23) is fixedly connected to the inner side of the top of the positioning cover (22) and the inner side of the bottom of the positioning frame (21). A honeycomb activated carbon filter element (24) is provided in the positioning frame (21). The positioning frame (21) and the positioning cover (22) are partially inserted into the connecting hole (20). The edges of the positioning cover (22) and the positioning frame (21) are fixedly connected with a stop plate (25). The stop plate (25) is fixedly mounted on the corresponding partition (19) by bolts.

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