CN218310700U

CN218310700U - Wax melting device for investment casting

Info

Publication number: CN218310700U
Application number: CN202222652520.3U
Authority: CN
Inventors: 方伟; 王瑾; 刘荣庭; 李亚林
Original assignee: Hubei Qiangsheng Valve Co ltd
Current assignee: Hubei Qiangsheng Valve Co ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-01-17
Anticipated expiration: 2032-09-30

Abstract

The utility model provides an investment casting is with melting wax device, including matched with barrel and lid, be equipped with heating element in the barrel, the bottom of barrel is equipped with the top that discharge gate and lid are equipped with the feed inlet, still is equipped with the installing support on the lid, is equipped with the movable plate that can follow vertical direction removal on the installing support and orders about the first drive assembly of movable plate action, is equipped with rotatable axis of rotation on the movable plate and orders about axis of rotation pivoted second drive assembly, is equipped with the through-hole that supplies the axis of rotation to pass on the lid, and the one end of axis of rotation passes the through-hole and stretches into in the barrel, the axis of rotation stretches into and is equipped with the cutter on the periphery wall of the part in the barrel. The utility model provides a wax stone glue lead to raw materials loss and influence the technical problem that the device normally used on the device, produced the technological effect that reduces the loss in the wax stone cutting process to prevent effectively that the wax after melting from gluing on axis of rotation and cutter, ensure investment casting with melting wax device steady operation.

Description

Wax melting device for investment casting

Technical Field

The utility model relates to an investment casting technical field especially relates to an investment casting is with melting wax device.

Background

At present, parts of products with cavities and complex shapes, such as valves and the like, are generally manufactured by adopting an investment casting process. The investment casting process is characterized in that wax is used for making a model, a plurality of layers of clay, adhesive and other refractory materials are wrapped on the outer shell of the model, the model is heated to enable the wax to be melted and flow out, so that an empty shell formed by the refractory materials is obtained, metal is melted and then poured into the empty shell, the empty shell formed by the refractory materials is broken after the metal is cooled, and then the cast metal part can be taken out of the empty shell.

Chinese utility model patent with publication number CN209349462U discloses a wax mould casting is with melting wax device fast, including melting the wax case, melt the side upper portion setting of wax case and be provided with the cutting board by the charge door, melt the inside level of wax case, the cutting board is located the below of charge door, and the cutting board is provided with the mesh that a plurality of runs through, and the top of cutting board is provided with the briquetting and pushes away even refining harrow with cutting board top wax stone, and the briquetting top is connected with the pneumatic cylinder of drive briquetting up-and-down motion. The massive wax falls on the cutting plate from the feed inlet, the homogenizing rake pushes the wax blocks uniformly, the hydraulic cylinder drives the pressing block to move downwards, and certain pressure is applied to the massive wax on the cutting plate, so that the massive wax is extruded and extruded from the meshes, the massive wax is cut into small blocks, the wax melting time is shortened, and the working efficiency is improved.

Above-mentioned utility model patent, the mode that adopts the clamp plate to exert pressure on the bold wax on the cutting board and extrude bold wax from the mesh of cutting board cuts into the fritter wax with bold wax, because wax has certain viscidity, can't avoid at the extruded in-process that partial wax piece is glutinous on clamp plate and cutting board, leads to the raw materials loss, and sticks to cause the mesh after the wax piece on the cutting board piles up easily and block up, influences the wax melting device normal use.

SUMMERY OF THE UTILITY MODEL

To the not enough that exists among the prior art, the utility model provides an investment casting is with melting wax device, its wax stone that has solved to exist among the prior art glues the problem that leads to raw materials loss and influence device normal use on the device.

According to the utility model discloses an embodiment, a wax melting device is used in investment casting, including matched with barrel and lid, be equipped with heating element in the barrel, the bottom of barrel is equipped with the discharge gate just the top of lid is equipped with the feed inlet, still be equipped with the installing support on the lid, be equipped with on the installing support and follow the movable plate that vertical direction removed and order about the first drive assembly of movable plate action, be equipped with rotatable axis of rotation on the movable plate and order about axis of rotation pivoted second drive assembly, be equipped with the confession on the lid the through-hole that the axis of rotation passed, just the one end of axis of rotation is passed the through-hole stretches into in the barrel, the axis of rotation stretches into be equipped with the cutter on the periphery wall of the part in the barrel.

Furthermore, the first driving assembly comprises a screw rod and a first motor, the screw rod is rotatably arranged on the mounting support, the first motor is fixed on the mounting support, the axial direction of the screw rod is vertical, the first motor is in transmission connection with the screw rod, and a threaded hole matched with the screw rod is formed in the moving plate.

Furthermore, the output end of the first motor is provided with a first gear, and the end part of the screw rod is provided with a second gear meshed with the first gear.

Furthermore, the mounting bracket is further provided with a guide rod, the axial direction of the guide rod is vertical, and the moving plate is provided with a guide hole matched with the guide rod.

Furthermore, the number of the rotating shafts is two, and the two rotating shafts are arranged on the moving plate at intervals.

Furthermore, the second driving assembly comprises a second motor, a third gear and a fourth gear, the output end of the second motor is matched with one of the rotating shafts, the third gear and the fourth gear are respectively arranged on the two rotating shafts, and the third gear is meshed with the fourth gear.

Further, the cutter is spiral and is arranged around the axis of the rotating shaft.

Further, the end of one end of the rotating shaft, which extends into the cylinder, is provided with a conical part.

Furthermore, a rotatable cover plate is further arranged on the cover body, and the cover plate covers the opening of the feed port.

Furthermore, a convex clamping block is arranged on the cover body, and a clamping groove matched with the clamping block is arranged on the barrel body.

Compared with the prior art, the utility model discloses following beneficial effect has: through having adopted movable plate and the rotatable axis of rotation that sets up on the movable plate of liftable setting on the installing support, the one end of axis of rotation stretches into in the barrel and the axis of rotation stretches into the one end in the barrel is equipped with the cutter, throw wax stone into the barrel from pan feeding mouth back and start first drive assembly and second drive assembly respectively, the cutter is close to the wax stone in the barrel under the order of first drive assembly, second drive assembly orders about the cutter simultaneously and rotates, thereby cut up the wax stone in the barrel, start the heating element heating wax stone in the barrel simultaneously, the wax discharges the barrel from the discharge gate after melting, and the centrifugal force that produces through the rotation of axis of rotation makes the wax attached to axis of rotation and cutter break away from, it has solved wax stone and has glued the technical problem that leads to the raw materials loss and influence the normal use of device on the device, the technological effect of loss in the wax stone cutting process has been reduced, and the wax after effectively preventing to melt is glued on axis of rotation and cutter, ensure that the wax device steady operation for investment casting.

Drawings

Fig. 1 is a schematic structural view of a wax melting device for investment casting according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a wax melting device for investment casting according to another view of the present invention;

FIG. 3 is a cross-sectional view of a wax melting apparatus for investment casting in accordance with an embodiment of the present invention;

FIG. 4 is a schematic partial structural view of a wax melting apparatus for investment casting according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a cover body in the wax melting device for investment casting according to an embodiment of the present invention.

In the drawings, wherein: 1. a barrel; 11. a discharge port; 12. a card slot; 13. a valve; 2. a cover body; 21. a feed inlet; 22. a cover plate; 23. a clamping block; 24. a handle; 25. a through hole; 3. a heating assembly; 4. mounting a bracket; 41. a guide rod; 5. moving the plate; 6. a first drive assembly; 61. a screw rod; 62. a first motor; 63. a first gear; 64. a second gear; 7. a rotating shaft; 71. a cutter; 72. a tapered portion; 8. a second drive assembly; 81. a second motor; 82. a third gear; 83. a fourth gear; 9. a frame.

Detailed Description

The technical solution of the present invention is further explained with reference to the drawings and the embodiments.

As shown in FIG. 1, the embodiment of the present invention provides a wax melting device for investment casting, which is used for crushing and melting wax blocks for manufacturing wax patterns.

As shown in fig. 1, 2 and 3, the wax melting device for investment casting includes a frame 9, a cylinder 1 and a cover 2 matched with the cylinder 1 are disposed on the frame 9, a heating component 3 for heating a wax block to melt the wax block is disposed in the cylinder 1, the heating component 3 may be an electric heating wire disposed around the cylinder 1 or an electric heating plate fixed in the cylinder 1, a feeding port 21 for placing the wax block into the cylinder 1 is disposed at the top of the cover 2, a discharging port 11 for flowing out the melted wax is disposed at the bottom of the cylinder 1, and a valve 13 for controlling the discharging port 11 to open or close is disposed at the discharging port 11. Still be equipped with installing support 4 on the lid 2, be equipped with on the installing support 4 and follow the movable plate 5 that vertical direction goes up and down and order about the first drive assembly 6 of movable plate 5 action, be equipped with rotatable axis of rotation 7 on the movable plate 5 and order about axis of rotation 7 pivoted second drive assembly 8, just be equipped with the confession on the lid 2 the through-hole 25 that axis of rotation 7 passed, the one end of axis of rotation 7 is passed through-hole 25 and stretch into in the barrel 1, axis of rotation 7 stretches into be equipped with on the periphery wall of the part in the barrel 1 and be used for the cutter 71 with the bold wax stone comminution.

In detail, when the wax block melting device for investment casting provided by this embodiment is used to melt a wax block, a large wax block is firstly put into the cylinder 1 from the feed port 21, then the heating assembly 3, the second driving assembly 8 and the first driving assembly 6 are respectively started, the second driving assembly 8 drives the rotating shaft 7 to rotate so as to drive the cutter 71 to rotate, meanwhile, the first driving assembly 6 drives the moving plate 5 to descend so that the cutter 71 extends into the wax block stacked in the cylinder 1 along with the movement of the moving plate 5, so that the large wax block in the cylinder 1 is cut up to stir the wax block, thereby accelerating the melting of the wax block, after the wax block is melted, the valve 13 is opened to enable the wax in the cylinder 1 to flow out from the discharge port 11, meanwhile, the wax attached to the rotating shaft 7 and the cutter 71 is thrown away by a centrifugal force generated by the rotation of the rotating shaft 7, the wax is prevented from being adhered to the rotating shaft 7 or the cutter 71, after the wax in the cylinder 1 is discharged, the valve 13 is operated to close the discharge port 11, then the heating assembly 3 and the second driving assembly 8 are closed, and the second driving assembly 6 is reset to drive the moving plate 6 to drive the wax block 6 to be reset.

Referring to fig. 3, the bottom of the inner cavity of the cylinder 1 is in an inverted circular truncated cone shape, and the discharge hole 11 is located at the center of the bottom of the cylinder 1, so as to guide the wax in the cylinder 1 to flow to the discharge hole 11 through the inclined inner wall of the bottom of the cylinder 1, thereby preventing the melted wax from being accumulated in the cylinder 1 and being unable to be discharged out of the cylinder 1.

Referring to fig. 2 and 3, in this embodiment, the first driving assembly 6 includes a screw 61 rotatably disposed on the mounting bracket 4 and a first motor 62 fixed on the mounting bracket 4, an axial direction of the screw 61 is a vertical direction, an output end of the first motor 62 is provided with a first gear 63, an end of the screw 61 is provided with a second gear 64, the first gear 63 is engaged with the second gear 64 to transmit power output by the first motor 62 to the screw 61 so as to rotatably connect the screw 61 with the first motor 62, so that the screw 61 can rotate under the driving of the first motor 62, and the moving plate 5 is provided with a threaded hole matched with the screw 61. When the first motor 62 drives the screw rod 61 to rotate, the moving plate 5 can move along the axial direction, i.e. the vertical direction, of the screw rod 61 through the matching of the threaded hole and the screw rod 61, and the moving plate 5 can ascend or descend along the vertical direction through controlling the rotating direction of the screw rod 61.

Specifically, in order to ensure that the moving plate 5 acts in the vertical direction, the mounting bracket 4 is further provided with guide rods 41, the moving plate 5 is provided with guide holes matched with the guide rods 41, the axial direction of the guide rods 41 is the vertical direction so as to limit the moving direction of the moving plate 5 through the matching of the guide rods 41 and the guide rods 41, the number of the guide rods 41 is two, and the two guide rods 41 are arranged on the mounting bracket 4 at intervals and located on two opposite sides of the screw rod 61 so as to prevent the moving plate 5 from inclining when ascending and descending.

As shown in fig. 1 and fig. 2, the number of the rotating shafts 7 is two, two rotating shafts 7 are arranged on the moving plate 5 at intervals, and two rotating shafts 7 are respectively provided with a cutter 71, and the two rotating shafts 7 are driven by the second driving assembly 8 to synchronously rotate, so that wax blocks accumulated on the inner wall of the cylinder 1 are cut, and the situation that the cutter 71 cannot cut partial wax blocks located at positions far away from the rotating shafts 7 is avoided.

In this embodiment, the second driving assembly 8 includes a second motor 81, a third gear 82 and a fourth gear 83, an output end of the second motor 81 is engaged with one of the rotating shafts 7, so that the rotating shaft 7 can rotate under the driving of the second motor 81, the third gear 82 and the fourth gear 83 are respectively disposed on the two rotating shafts 7, and the third gear 82 is engaged with the fourth gear 83. When one of the rotating shafts 7 is driven by the second motor 81 to rotate, the third gear 82 and the fourth gear 83 are matched to enable the two rotating shafts 7 to rotate synchronously, and the rotating directions of the two rotating shafts 7 are opposite, so that the wax blocks in the cylinder 1 are cut up by the cutter 71.

Referring to fig. 3, in order to smoothly cut the wax block by the cutter 71, the cutter 71 is spiral, the spiral cutter 71 is disposed around the axis of the rotating shaft 7, and the cutter 71 is screwed into the wax block with the rotation of the rotating shaft 7 to break the wax block. And one end of the rotating shaft 7 extending into the cylinder 1 is provided with a sharp conical part 72, the conical part 72 can reduce the resistance of the wax block to the rotating shaft 7 in the descending process of the rotating shaft 7, and the conical part 72 is drilled into the wax block along with the rotation of the rotating shaft 7, so that the cutter 71 can be inserted into the wax block to cut the wax block.

Referring to fig. 4 and 5, in this embodiment, the cover body 2 is detachably connected to the cylinder body 1, a protruding block 23 is disposed on the cover body 2, a slot 12 matched with the block 23 is disposed on the cylinder body 1, and the slot 12 is L-shaped, so as to ensure that the cover body 2 and the cylinder body 1 are firmly matched, and at the same time, the cover body 2 is conveniently detached from the cylinder body 1, so as to clean and maintain the interior of the wax melting device for investment casting. When the cover body 2 is installed on the barrel body 1, the cover body 2 is moved firstly to insert the fixture block 23 into the clamping groove 12, then the cover body 2 is rotated to lock the position of the cover body 2 on the barrel body 1, and when the cover body 2 needs to be taken down from the barrel body 1, the cover body 2 is rotated firstly and then the fixture block 23 is taken out from the clamping groove 12.

Preferably, handles 24 are respectively provided on opposite sides of the lid 2, and the lid 2 can be easily rotated and the lid 2 can be easily moved by operating the handles 24.

As shown in fig. 5, a rotatable cover plate 22 is further disposed on the cover body 2, the cover plate 22 covers an opening of the feed port 21, and the feed port 21 can be opened or closed by rotating the cover plate 22, so that a wax block can be conveniently added into the cylinder 1, and heat in the cylinder 1 can be prevented from leaking from the feed port 21 in the heating process.

Finally, it is noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims

1. The utility model provides an investment casting is with melting wax device, includes matched with barrel and lid, be equipped with heating element in the barrel, the bottom of barrel is equipped with the discharge gate just the top of lid is equipped with feed inlet, its characterized in that: still be equipped with the installing support on the lid, be equipped with the movable plate that can follow vertical direction and order about on the installing support the first drive assembly of movable plate action, be equipped with rotatable axis of rotation on the movable plate and order about axis of rotation pivoted second drive assembly, be equipped with the confession on the lid the through-hole that the axis of rotation passed, just the one end of axis of rotation is passed the through-hole stretches into in the barrel, the axis of rotation stretches into be equipped with the cutter on the periphery wall of the part in the barrel.

2. The wax melting apparatus for investment casting as claimed in claim 1, wherein: the first driving assembly comprises a screw rod and a first motor, the screw rod is rotatably arranged on the mounting support, the first motor is fixed on the mounting support, the axial direction of the screw rod is vertical, the first motor is in transmission connection with the screw rod, and a threaded hole matched with the screw rod is formed in the movable plate.

3. The wax melting apparatus for investment casting as claimed in claim 2, wherein: the output end of the first motor is provided with a first gear, and the end part of the screw rod is provided with a second gear meshed with the first gear.

4. The wax melting apparatus for investment casting according to claim 1, wherein: the mounting bracket is further provided with a guide rod, the axial direction of the guide rod is vertical, and the moving plate is provided with a guide hole matched with the guide rod.

5. The wax melting apparatus for investment casting according to claim 1, wherein: the number of the rotating shafts is two, and the two rotating shafts are arranged on the moving plate at intervals.

6. The wax melting apparatus for investment casting of claim 5 wherein: the second driving assembly comprises a second motor, a third gear and a fourth gear, the output end of the second motor is matched with one of the rotating shafts, the third gear and the fourth gear are respectively arranged on the two rotating shafts, and the third gear is meshed with the fourth gear.

7. The wax melting apparatus for investment casting according to claim 1, wherein: the cutter is spiral and the cutter is arranged around the axis of the rotating shaft.

8. The wax melting apparatus for investment casting according to claim 1, wherein: the end part of one end of the rotating shaft extending into the cylinder body is provided with a conical part.

9. The wax melting apparatus for investment casting according to claim 1, wherein: the cover body is further provided with a rotatable cover plate, and the cover plate covers the opening of the feed port.

10. The wax melting apparatus for investment casting as claimed in claim 1, wherein: the cover body is provided with a convex clamping block, and the barrel body is provided with a clamping groove matched with the clamping block.