Lifting type sand box of sand mold 3D printer

Abstract

The utility model relates to the technical field of sand mould 3D printers, and provides a lifting type sand box of a sand mould 3D printer, which comprises a main machine shell, a lifting body is movably embedded in the inner surface of the main machine shell, the top of the lifting body is fixedly connected with a surrounding plate, the inside of the surrounding plate is rotatably connected with a rotating rod, and one end of the rotating rod extends out; two cranks are fixedly connected to the outer surface of the rotating rod, first connecting rods are rotatably connected to the ends, away from the rotating rod, of the cranks, first shaft blocks are rotatably connected to the ends, away from the cranks, of the first connecting rods, and adjusting plates are fixedly connected to the sides, away from the first connecting rods, of the two first shaft blocks; the side, close to the first shaft block, of the adjusting plate is fixedly connected with two limiting rods. According to the utility model, a structure capable of adjusting the size of the sand box is arranged, so that the sand box can be adjusted according to the size requirement of an actual sand mold and is suitable for diversified design changes, the consumption of sand materials can be greatly reduced, the utilization rate of the sand materials is improved, the use amount of the sand materials can be accurately controlled, and the production cost is further reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to sand mould 3D printer technical field especially relates to a sand mould 3D printer's lifting type sand box. BACKGROUND

[0002] Lifting type sand box has very important role in sand mould 3D printer: during sand mould 3D printing process, lifting type sand box can control the thickness of sand layer accurately. Every printing a layer, sand box will drop a certain height, this height is the sand layer thickness that is set up beforehand, usually around 0.1-0.3 millimeter, when printing a complex engine cylinder sand mould, accurate sand layer thickness can guarantee the precision of sand mould, is favorable for subsequent casting the engine cylinder of size accuracy, the action of lifting type sand box is closely coordinated with the work of printing nozzle. When nozzle completes the binder injection of a layer, and sand grain is bonded to form a layer of sand mould, sand box drops, and then sand laying device carries out the sand laying of next layer, then nozzle sprays binder again.

[0003] But prior art such as China publication number: CN216632513U, "a lifting type sand box of sand mould 3D printer", the utility model discloses a lifting type sand box of sand mould 3D printer, including sand box body and the lifting platform that sets up in the sand box body, and the lifting platform is attached with the sand box body inner wall and can lift in the sand box body, the bottom of sand box body is equipped with the empty hole, and the lower part of sand box body is fixed with the support frame for supporting the lifting platform, and the outer edge of support frame is surrounded with the sand box body inner wall and forms the ring-shaped sand collecting groove, and the sand box body is equipped with the sand discharge hole that communicates with sand collecting groove, and the collecting device for collecting the sand material that the sand discharge hole leads out is fixed on the periphery of sand box body. Sand collecting groove can collect the sand material that leaks at the edge of lifting platform, and the collecting device outside is leaked to through sand discharge hole.

[0004] But this device does not set up sand box size adjustable structure, can not adjust according to the size requirement of actual sand mould, cannot adapt to the diversification of design change, can not greatly reduce the consumption of sand material, reduces the utilization of sand material, can not accurately control the use amount of sand material, and further reduces production cost, and the device does not set up sand box rotation screw lifting structure, can not accurately adjust the height of sand box, can not guarantee the uniformity of every layer sand, thereby ensuring the quality of final sand mould, cannot provide stable lifting movement. UTILITY MODEL CONTENTS

[0005] The utility model discloses a purpose is to solve the prior art exists, cannot according to the size requirement of actual sand mould and adjusts, cannot adapt diversified design change, cannot greatly reduce the consumption of sand material, reduce the utilization of sand material, cannot accurately control the use amount of sand material, and further reduce production cost, cannot accurately adjust the height of sand box, cannot guarantee the uniformity of every layer sand, thereby ensure the quality of final sand mould, cannot provide stable lifting movement problem.

[0006] In order to realize the above-mentioned purpose, the utility model discloses a lifting type sand box of sand mould D printer, including host computer shell, the inner surface movable embedding of host computer shell has the lifting body, the top fixed connection of lifting body has the coaming, the inside rotation of coaming is connected with the swing lever and extends one end, the outer surface fixed connection of swing lever has two cranks, the one end rotation of crank away from swing lever is connected with first connecting rod, the one end rotation of first connecting rod away from crank is connected with first axle block, two first axle blocks are fixedly connected with the adjusting plate on the side away from first connecting rod, the inside fixed connection of adjusting plate close to first axle block has two limit rods, the outer surface movable sleeve of limit rod is connected with the limit block, the inside fixed connection of two limit blocks on coaming's inner surface adjusting plate and limit rod is in the limit block, moves to set the inside area of adjusting plate and coaming.

[0007] As a preferred implementation, the end of the swing lever is fixedly connected with a worm gear, and the outer surface of the worm gear is meshingly connected with a worm. Rotating the worm will drive the swing lever under the meshing action of the worm gear.

[0008] As a preferred implementation, the outer surface of the worm is rotatably connected with two shaft plates and extends one end, and the outer surface of the worm is rotatably connected with two shaft plates and extends one end. The two shaft plates are fixedly connected to the outer surface of the coaming. The worm can rotate in the shaft plate.

[0009] As a preferred implementation, the side close to the worm gear of the coaming is fixedly connected with a first motor, and the output end of the first motor is fixedly connected to the end of the worm. The first motor will drive the worm to rotate in the shaft plate after being electrified.

[0010] As a preferred implementation, the inside of the host computer shell is rotatably connected with a forward and reverse screw rod and extends one end. The outer surface of the forward and reverse screw rod is threadedly connected with two internal threaded blocks. Rotating the screw will drive the internal threaded blocks.

[0011] As a preferred implementation, the bottom of the internal threaded block is fixedly connected with a limit plate, and the inner surface of the host computer shell is provided with a limit groove. The outer surface of the two limit plates is movably embedded in the inside of the limit groove. The limit plate at the bottom of the internal threaded block can only move along the slotting direction of the limit groove.

[0012] As a preferred implementation form, the top of the female threaded block is fixedly connected with a second shaft block, the inside of the second shaft block is rotatably connected with a second connecting rod, the end of the second connecting rod away from the second shaft block is rotatably connected with a third shaft block, the top of the two third shaft blocks is fixedly connected with the bottom of the lifting body, and the other end of the second connecting rod pulls the lifting body through the third shaft block.

[0013] As a preferred implementation form, the side of the main shell is fixedly connected with a mounting sleeve, the inner surface of the mounting sleeve is fixedly embedded with a second motor, and the output end of the second motor is fixedly connected with one end of the positive and negative screw rod.

[0014] Compared with the prior art, the advantages and positive effects of the utility model are that:

[0015] The sand box size adjusting structure is provided, the size of the actual sand mold can be adjusted, diversified design changes are adapted, the consumption of sand materials is greatly reduced, the utilization rate of the sand materials is improved, the use amount of the sand materials is accurately controlled, and the production cost is reduced.

[0016] The sand box rotating screw lifting structure is provided, the height of the sand box can be accurately adjusted, the uniformity of each layer of sand is ensured, the quality of the final sand mold is ensured, and stable lifting movement is provided. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A back surface structure schematic view of the lifting type sand box of the sand mold 3D printer is provided.

[0018] Figure 2 A three-dimensional structure schematic view of the lifting type sand box of the sand mold 3D printer is provided.

[0019] Figure 3 A cross-sectional structure schematic view of the lifting type sand box of the sand mold 3D printer is provided.

[0020] Figure 4 A cross-sectional structure schematic view of the lifting type sand box of the sand mold 3D printer is provided.

[0021] Figure 5 A cross-sectional structure schematic view of the lifting type sand box of the sand mold 3D printer is provided. Figure 2 An enlarged structure schematic view of the sand mold 3D printer of the lifting type sand box.

[0022] LEGEND:

[0023] 1, host shell; 2, lifting body; 3, coaming; 4, rotating rod; 5, crank; 6, first connecting rod; 7, first shaft block; 8, adjusting plate; 9, limiting rod; 10, limiting block; 11, worm; 12, worm; 13, shaft plate; 14, first motor; 15, positive and negative screw rod; 16, internally threaded block; 17, limiting plate; 18, limiting groove; 19, second shaft block; 20, second connecting rod; 21, third shaft block; 22, mounting sleeve; 23, second motor. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] Please refer to Figures 1 to 5 The utility model provides a kind of technical scheme: a lifting type sand box of sand mould 3D printer, including host shell 1, the inner surface of host shell 1 is movably embedded with lifting body 2, the top of lifting body 2 is fixedly connected with coaming 3, coaming 3 is rotatably connected with rotating rod 4 and extends one end, the outer surface of rotating rod 4 is fixedly connected with two cranks 5, the end of crank 5 away from rotating rod 4 is rotatably connected with first connecting rod 6, the end of first connecting rod 6 away from crank 5 is rotatably connected with first shaft block 7, the side of two first shaft blocks 7 away from first connecting rod 6 is fixedly connected with adjusting plate 8, the side of adjusting plate 8 close to first shaft block 7 is fixedly connected with two limiting rods 9, the outer surface of limiting rod 9 is movably sleeved with limiting block 10, the side of two limiting blocks 10 is fixedly connected in the inner surface of coaming 3, drive rotating rod 4 to rotate in coaming 3, the crank 5 of following rotating rod 4 rotation will drive the end of first connecting rod 6, the other end of first connecting rod 6 will push adjusting plate 8 by first shaft block 7.

[0026] As Figures 1 to 5 Shown, the end of rotating rod 4 extension is fixedly connected with worm 11, the outer surface of worm 11 is engagedly connected with worm 12, and worm 12 will drive rotating rod 4 to rotate in coaming 3 under the meshing action of worm 11.

[0027] As Figures 1 to 5 Shown, the outer surface of worm 12 is rotatably connected with two shaft plates 13 and extends one end, the side of two shaft plates 13 is fixedly connected in the outer surface of coaming 3, and worm 12 can rotate in shaft plate 13.

[0028] As Figures 1 to 5As shown, a first motor 14 is fixedly connected to the side of the enclosure plate 3 near the worm gear 11. The output end of the first motor 14 is fixedly connected to one end of the worm 12. When the first motor 14 is powered on, it will drive the worm 12 to rotate inside the shaft plate 13.

[0029] like Figures 1 to 5 As shown, the main housing 1 has a rotating connection to a positive and negative lead screw 15 with one end extending out. The outer surface of the positive and negative lead screw 15 is threaded with two internal thread blocks 16. Rotating the screw will drive the internal thread blocks 16.

[0030] like Figures 1 to 5 As shown, the bottom of the internal threaded block 16 is fixedly connected to a limiting plate 17, and a limiting groove 18 is opened at the bottom of the inner surface of the main body housing 1. The outer surfaces of the two limiting plates 17 are movably embedded in the inside of the limiting groove 18, and the limiting plate 17 at the bottom of the internal threaded block 16 can only move along the slotting direction of the limiting groove 18.

[0031] like Figures 1 to 5 As shown, a second shaft block 19 is fixedly connected to the top of the internal thread block 16, a second connecting rod 20 is rotatably connected inside the second shaft block 19, and a third shaft block 21 is rotatably connected to the end of the second connecting rod 20 away from the second shaft block 19. The tops of the two third shaft blocks 21 are fixedly connected to the bottom of the lifting body 2, the two internal thread blocks 16 are close to each other, and drive one end of the second connecting rod 20 through the second shaft block 19.

[0032] like Figures 1 to 5 As shown, a mounting sleeve 22 is fixedly connected to one side of the main housing 1. A second motor 23 is fixedly embedded on the inner surface of the mounting sleeve 22. The output end of the second motor 23 is fixedly connected to one end of the positive and negative lead screw 15. When the second motor 23 is powered on, it will drive the positive and negative lead screw 15 to rotate inside the main housing 1.

[0033] Working principle: first print first according to the size of the workpiece, to set the adjusting plate 8 and the inside area of the fence 3, can start the first motor 14 power supply, the first motor 14 model: Y80, rated power: 1250W, the first motor 14 will drive the worm 12 in the shaft plate 13 inside rotation, rotating worm 12 will be in the meshing effect of worm wheel 11, drive the rotating rod 4 in the fence 3 inside rotation, crank 5 will drive one end of the first connecting rod 6, the other end of the first connecting rod 6 will be pushed by the first shaft block 7 adjusting plate 8, so that the adjusting plate 8 and the limit rod 9 in the limit block 10, to set the adjusting plate 8 and the inside area of the fence 3, when the device prints, can be realized by rotating the positive and negative screw rod 15, the lifting body 2 in the main machine shell 1 inside settlement, can start the second motor 23 power supply, the second motor 23 model: Y90, rated power: 2000W, the second motor 23 through the installation sleeve 22 fixed in the main machine shell 1 side, the second motor 23 will drive the positive and negative screw rod 15 in the main machine shell 1 inside rotation, rotating screw will drive the internal thread block 16, the limit plate 17 at the bottom of the internal thread block 16 can only move along the slotting direction of the limit slot 18, so the rotating screw can drive two internal thread blocks 16 close to each other, and through the second shaft block 19 drive one end of the second connecting rod 20, the other end of the second connecting rod 20 will pull the lifting body 2 through the third shaft block 21.

[0034] The above is only the preferred embodiment of the present application, not other forms of the present application limit, any skilled in the art of technical personnel may use the above disclosed technology content to change or modification of equivalent changes equivalent embodiments applied to other fields, but any simple modification, equivalent changes and modification of the above embodiments, which do not deviate from the technical scheme of the present application, according to the technical essence of the present application, still belong to the protection scope of the present application technical scheme.

Claims

1. A lifting sand box for a sand mold 3D printer, comprising a main housing (1), characterized in that, The inner surface of the main housing (1) is movably fitted with a lifting body (2). The top of the lifting body (2) is fixedly connected to a surrounding plate (3). The inside of the surrounding plate (3) is rotatably connected to a rotating rod (4) and extends out one end. The outer surface of the rotating rod (4) is fixedly connected to two cranks (5). The end of the crank (5) away from the rotating rod (4) is rotatably connected to a first connecting rod (6). The end of the first connecting rod (6) away from the crank (5) is rotatably connected to a first shaft block (7). The side of the two first shaft blocks (7) away from the first connecting rod (6) is fixedly connected to an adjusting plate (8). The side of the adjusting plate (8) close to the first shaft block (7) is fixedly connected to two limiting rods (9). The outer surface of the limiting rods (9) is movably fitted with a limiting block (10). One side of the two limiting blocks (10) is fixedly connected to the inner surface of the surrounding plate (3).

2. The lifting sand box of a sand mold 3D printer according to claim 1, characterized in that: One end of the rotating rod (4) is fixedly connected to a worm gear (11), and a worm (12) is meshed with the outer surface of the worm gear (11).

3. The lifting sand box of a sand mold 3D printer according to claim 2, characterized in that: The outer surface of the worm (12) is rotatably connected to two shaft plates (13) and extends out one end. One side of the two shaft plates (13) is fixedly connected to the outer surface of the enclosure plate (3).

4. The lifting sand box of a sand mold 3D printer according to claim 3, characterized in that: The first motor (14) is fixedly connected to the side of the enclosure (3) near the worm gear (11), and the output end of the first motor (14) is fixedly connected to one end of the worm (12).

5. The lifting sand box of a sand mold 3D printer according to claim 4, characterized in that: The main housing (1) is rotatably connected to a positive and negative lead screw (15) with one end extending out. The outer surface of the positive and negative lead screw (15) is threaded with two internal thread blocks (16).

6. The lifting sand box of a sand mold 3D printer according to claim 5, characterized in that: The bottom of the internal threaded block (16) is fixedly connected to a limiting plate (17), and a limiting groove (18) is opened at the bottom of the inner surface of the main body housing (1). The outer surfaces of the two limiting plates (17) are movably embedded in the limiting groove (18).

7. The lifting sand box of a sand mold 3D printer according to claim 6, characterized in that: The top of the internal threaded block (16) is fixedly connected to a second shaft block (19), and the interior of the second shaft block (19) is rotatably connected to a second connecting rod (20). The end of the second connecting rod (20) away from the second shaft block (19) is rotatably connected to a third shaft block (21), and the tops of the two third shaft blocks (21) are fixedly connected to the bottom of the lifting body (2).

8. The lifting sand box of a sand mold 3D printer according to claim 7, characterized in that: A mounting sleeve (22) is fixedly connected to one side of the main housing (1). A second motor (23) is fixedly embedded on the inner surface of the mounting sleeve (22). The output end of the second motor (23) is fixedly connected to one end of the positive and negative lead screw (15).

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