Layered injection molding device for precoated sand shell mold

Abstract

The invention relates to the technical field of layered injection molding, and particularly discloses a precoated sand shell mold layered injection molding device which comprises a base, two storage tanks and two fixing blocks are arranged on the upper surface of the base, a pressure gauge is installed on one fixing block, and a pressure gauge is installed on the other fixing block; wherein a hard pipe is fixedly communicated between one storage tank and the pressure gauge, a hose is fixedly connected to the upper surface of the pressure gauge, a spray gun is fixedly connected to one end of the hose, a first motor is fixedly mounted on one side of each fixing block, a rotating shaft is fixedly connected to the output end of each first motor, and a first rotating shaft is fixedly connected to the output end of each rotating shaft. The device has the beneficial effects that particles are prevented from flying out of the protective cover and making contact with the atmosphere to pollute the air, in this way, the situation that sprayed particulate matter hurts the body of a worker is effectively prevented, a rotary disc rotates continuously, a sand shell can be evenly covered with materials, and spraying is more uniform.

Description

Technical Field

[0001] The invention relates to the technical field of layered injection molding, in particular to a coated sand shell type layered injection molding device. Background Art

[0002] As the manufacturing industry's requirements for rapid response to market demand and improved production efficiency continue to increase, the application of rapid prototyping technology in the manufacture of coated sand shell molds has become an inevitable trend. This device can achieve rapid and precise manufacturing of coated sand shell molds, and layered injection molding is one of the most widely used technologies.

[0003] In the prior art, the coated sand shell is usually made first, either manually or by machine, and then fixed in a certain position. Then, a spray gun connected to the material is used to spray it evenly around repeatedly, and the shell is quickly formed after the spraying is completed.

[0004] However, common spraying processes are carried out in an unprotected environment, and the sprayed particles will spread into the air, polluting the air and causing great harm to the health of the workers. Summary of the invention

[0005] The object of the present invention is to provide a coated sand shell type layered injection molding device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a coated sand shell type layered injection molding device, comprising: a base, the upper surface of the base is provided with two storage tanks and two fixed blocks, one of the fixed blocks is equipped with a pressure device, one of the storage tanks and the pressure device is fixedly connected with a hard pipe, the upper surface of the pressure device is fixedly connected with a hose, one end of the hose is fixedly connected with a spray gun, a first motor is fixedly installed on one side of each of the fixed blocks, the output end of each of the first motors is fixedly connected with a rotating shaft, a protective device and a coated sand shell placement assembly are provided between the two rotating shafts, an arc-shaped injection rod is fixedly connected between the two rotating shafts, and a plurality of nozzles are provided on the lower surface of the arc-shaped injection rod.

[0007] Preferably, the protective device comprises a protective cover and a metal block, the protective cover is configured to be hemispherical, two sides of the protective cover are rotatably connected to the two rotating shafts respectively, and the metal block is fixedly connected to one side of the protective cover.

[0008] Preferably, an arc-shaped groove is formed on the upper surface of the base, and the protective cover can extend into the arc-shaped groove and be slidably connected thereto.

[0009] Preferably, a slide groove is provided on the protective cover, a rectangular through hole is provided on the bottom wall of the slide groove, and a sliding block is slidably connected in the slide groove.

[0010] Preferably, a pillar is provided on one side of the protective cover, the pillar is fixedly mounted on the upper surface of the base, and an electromagnet is fixedly mounted on the upper surface of the pillar.

[0011] Preferably, the coated sand shell placement assembly includes a turntable, a cross shaft and a second motor, the second motor is embedded in the base, the cross shaft is fixedly connected to the output end of the second motor, the turntable is embedded in the upper surface of the base and is rotatably connected thereto, a cross slot is provided at the bottom of the turntable, and the cross shaft is adapted to the cross slot.

[0012] Preferably, a pair of handles are fixedly connected to the upper surface of the turntable, and a plurality of balls are embedded in the lower surface of the turntable, and the plurality of balls are evenly arranged in a circle with the cross groove as the center.

[0013] Preferably, the spray gun includes a gun body, a muzzle, a switch and a handle, the gun body is fixedly connected to one end of the hose, one end of the gun body is provided with a muzzle, two handles are fixedly connected to the lower surface of the gun body, a switch is provided between the two handles, and the switch is provided on the lower surface of the gun body.

[0014] Preferably, a placement table is provided on one side of one of the fixed blocks, the placement table is fixedly mounted on the upper surface of the base, a placement groove is provided on the upper surface of the placement table, and the placement groove is adapted to the spray gun.

[0015] Preferably, a control console is provided on one side of the base.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. By arranging a rotatable protective device on the coated sand shell placement assembly, it is effectively possible to protect the material when it is sprayed, preventing particles from flying out of the protective cover and contacting the atmosphere to pollute the air, thereby effectively preventing the sprayed particulate matter from causing harm to the workers.

[0018] 2. Through the setting of multiple devices such as the coated sand shell placement component and the base, the turntable can be effectively rotated continuously during the material injection process, so that the sand shell can be evenly covered by the material, making the injection more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 A schematic diagram of a three-dimensional structure from another viewing angle of the present invention;

[0021] Figure 3It is a schematic diagram of the three-dimensional structure of the protective cover after rotation of the present invention;

[0022] Figure 4 It is a schematic diagram of the disassembled structure of the coated sand shell placement assembly of the present invention;

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the protective device of the present invention;

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the spray gun of the present invention.

[0025] In the figure: 1. base; 2. protective device; 3. spray gun; 4. placement table; 5. hose; 6. pressure device; 7. hard pipe; 8. control console; 9. storage tank; 10. fixed block; 11. first motor; 12. support; 13. electromagnet; 14. placement groove; 15. coated sand shell placement assembly; 16. arc groove; 17. metal block; 18. arc spray rod; 19. nozzle; 20. turntable; 21. ball bearing; 22. handle; 23. cross groove; 24. cross shaft; 25. second motor; 26. slider; 28. rectangular through hole; 29. ​​slide groove; 30. rotating shaft; 31. gun body; 32. switch; 33. handle; 34. muzzle; 35. protective cover. DETAILED DESCRIPTION

[0026] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Embodiment 1

[0028] See also Figure 1 - Figure 3 The present invention provides a technical solution: a coated sand shell type layered injection molding device, comprising: a base 1, the upper surface of the base 1 is provided with two storage tanks 9 and two fixed blocks 10, each storage tank 9 not only stores medicines but also provides a certain pressure for gas, one of the fixed blocks 10 is installed with a pressure device 6, the pressure device 6 is used to collect pressure and inject materials, a hard pipe 7 is fixedly connected between one of the storage tanks 9 and the pressure device 6, the hard pipe 7 is set to be hard and not easy to deform, a hose 5 is fixedly connected to the upper surface of the pressure device 6, the hose 5 is easy to deform, and the position of one end can be changed at will within its range, one end of the hose 5 is fixedly connected to a spray gun 3, so that the hose 5 provides power for the injector.

[0029] A first motor 11 is fixedly installed on one side of each fixed block 10, and the two first motors 11 are arranged opposite to each other. The output end of each first motor 11 is fixedly connected to a rotating shaft 30, and one end of the rotating shaft 30 is fixedly connected to the output end of the first motor 11. The rotating shaft 30 will rotate with the rotation of the output end of the first motor 11. A protective device 2 and a coated sand shell placement assembly 15 are arranged between the two rotating shafts 30. Each rotating shaft 30 passes through the side wall of the protective cover 35. An arc-shaped spray rod 18 is fixedly connected between the two rotating shafts. The arc-shaped spray rod 18 can rotate in the protective cover 35 following the rotating shaft 30. A plurality of nozzles 19 are arranged on the lower surface of the arc-shaped spray rod 18. The plurality of nozzles 19 make its spraying relatively uniform.

[0030] In actual use, when the protective cover 35 covers the coated sand shell, the output ends of the two first motors 11 will rotate at the same time, driving the two rotating shafts 30 to rotate at the same time. The two rotating shafts 30 will drive the arc-shaped spray rod 18 to move back and forth in the hemispherical protective cover 35, and spray during the movement. In this way, it can be sprayed at various angles to make the spray uniform.

[0031] Embodiment 2

[0032] See also Figure 3 and Figure 5 On the basis of the first embodiment, the protective device 2 includes a protective cover 35 and a metal block 17. The protective cover 35 is set to be hemispherical so as to cover the sand shell. The two sides of the protective cover 35 are respectively rotatably connected with the two rotating shafts 30. The two rotating shafts 30 are symmetrical and respectively penetrate the protective cover 35. Because of the rotation connection with the rotating shaft, when the protective cover 35 is used, it needs to be opened and covered manually. The metal block 17 is fixedly connected to one side of the protective cover 35. One of the functions of the metal block 17 is to facilitate manual operation. The metal block 17 can be grasped to operate the protective cover 35. An arc groove 16 is opened on the upper surface of the base 1. The arc groove 16 is set deeper, and more than half of the protective cover 35 can be turned into it. The protective cover 35 can extend into the arc groove 16 and be slidably connected thereto.

[0033] A slide groove 29 is provided on the protective cover 35, and a rectangular through hole 28 is provided on the bottom wall of the slide groove 29. The rectangular through hole 28 is provided so that after the arc-shaped spray rod 18 is sprayed, a simple inspection can be carried out through the through hole. If any defects are found, the spray gun 3 can be used to supplement them. A slider 26 is slidably connected in the slide groove 29, and the slider 26 can just cover the rectangular through hole 28. When the through hole needs to be used, the slider 26 can be moved to open it. A pillar 12 is provided on one side of the protective cover 35. The pillar 12 is fixedly mounted on the upper surface of the base 1. The pillar 12 plays a supporting role. An electromagnet 13 is fixedly mounted on the upper surface of the pillar 12. The electromagnet 13 can attract the metal block 17, effectively ensuring that the protective cover 35 will not be easily opened during operation.

[0034] When the protective cover 35 needs to be used, it is rotated until the metal block 17 contacts the electromagnet 13 and the electromagnet 13 is turned on to attract the metal block 17, so that the protective cover 35 will not rotate easily. When use is completed, the electromagnet 13 is powered off and the protective cover 35 is gently pushed by the metal block 17, so that the protective cover 35 can rotate and extend into the arc groove 16.

[0035] Embodiment 3

[0036] See also Figure 5 - Figure 6 On the basis of the second embodiment, the coated sand shell placement assembly 15 includes a turntable 20, a cross shaft 24 and a second motor 25. The second motor 25 is embedded in the base 1. The output end of the motor is rotatably connected to the base 1. The cross shaft 24 is fixedly connected to the output end of the second motor 25. The cross shaft 24 is rotatably connected to the base 1. The turntable 20 is embedded in the upper surface of the base 1 and is rotatably connected thereto. The upper surface of the turntable 20 is slightly higher than the upper surface of the base 1. A cross slot 23 is provided at the bottom of the turntable 20. The cross shaft 24 is adapted to the cross slot 23. When the cross shaft 24 is inserted into the cross slot 23, the rotation of the cross shaft 24 can drive the turntable 20 to rotate.

[0037] A pair of handles 22 are fixedly connected to the upper surface of the turntable 20, and the turntable 20 can be removed and a coated sand shell can be set on the turntable 20, which effectively makes the process of setting the coated sand shell more convenient. A plurality of balls 21 are embedded in the lower surface of the turntable 20. When the turntable 20 is placed on the base 1, the balls 21 can make it very smooth when rotating, thus protecting the motor and making its rotation more energy-saving. The plurality of balls 21 are evenly arranged in a circle with the cross groove 23 as the center, so that the force on the balls 21 is even and the service life is longer.

[0038] In actual use, it is necessary to open the protective cover 35, then take out the turntable 20 through the handle 22, and set a coated sand shell on the turntable 20. When the setting is completed, reset the turntable 20, then cover the protective cover 35, start the first motor 11 and the second motor 25, the second motor 25 will drive the cross shaft 24 to rotate slowly, and the cross shaft 24 will drive the turntable 20 to rotate slowly, so that the turntable 20 is effectively rotated during the back and forth spraying of the arc-shaped spray rod 18, so that the spraying is more uniform.

[0039] Embodiment 4

[0040] See also Figure 4 On the basis of the third embodiment, the spray gun 3 includes a gun body 31, a muzzle 34, a switch 32 and a handle 33. The gun body 31 is fixedly connected to one end of the hose 5. The gun body 31 is used to connect the hose 5 and the control switch 32. One end of the gun body 31 is provided with a muzzle 34, which is the spray port. The lower surface of the gun body 31 is fixedly connected with two handles 33, which can be held with one hand or with two hands. A switch 32 is provided between the two handles 33. The switch 32 is used to control whether to spray. The switch 32 is provided on the gun body 3 1, a placing table 4 is arranged on one side of one of the fixed blocks 10, the placing table 4 is used to place the spray gun 3, the placing table 4 is fixedly mounted on the upper surface of the base 1, the placing table 4 is arranged mainly for taking and placing the spray gun 3, a placing groove 14 is arranged on the upper surface of the placing table 4, the placing groove 14 is adapted to the spray gun 3, the spray gun 3 can be placed in the placing groove 14, and can be firmly stuck without shaking easily, a control console 8 is arranged on one side of the base 1, the control console 8 is used to control the whole device, and is the key to the orderly and stable operation of the whole device.

[0041] In actual use, the turntable 20 is taken out by the handle 22, and a coated sand shell is set on the turntable 20. When the setting is completed, the turntable 20 is reset, and then the protective cover 35 is covered, and it is rotated until the metal block 17 contacts the electromagnet 13 and the electromagnet 13 is turned on to suck the metal block 17, so that the protective cover 35 can be ensured not to rotate easily, and the first motor 11 and the second motor 25 are started. After starting the first motor 11, the output ends of the two first motors 11 will respectively drive the two rotating shafts 30 to rotate, and the two rotating shafts 30 will drive the arc-shaped spray rod 18 to move back and forth in the hemispherical protective cover 35, and spray during the movement, so that It will be sprayed at various angles to make the spraying uniform. The second motor 25 will drive the cross shaft 24 to rotate slowly, and the cross shaft 24 will drive the turntable 20 to rotate slowly. This effectively makes the turntable 20 rotate continuously during the back and forth spraying of the arc-shaped spray rod 18, so that the spraying is more uniform. After the arc-shaped spray rod 18 is sprayed, the sliding groove 29 is simply observed through the rectangular through hole 28. If there are more prominent defects, the spray gun 3 can be used to fill them. After the inspection is completed, the electromagnet 13 is powered off, and the protective cover 35 is gently pushed through the metal block 17, so that the protective cover 35 can rotate and extend into the arc groove 16.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coated sand shell type layered injection molding device, comprising: A base (1), characterized in that: two storage tanks (9) and two fixed blocks (10) are arranged on the upper surface of the base (1), a pressure device (6) is installed on one of the fixed blocks (10), a hard pipe (7) is fixedly connected between one of the storage tanks (9) and the pressure device (6), a hose (5) is fixedly connected to the upper surface of the pressure device (6), one end of the hose (5) is fixedly connected to a spray gun (3), a first motor (11) is fixedly installed on one side of each of the fixed blocks (10), the output end of each of the first motors (11) is fixedly connected to a rotating shaft (30), a protective device (2) and a coated sand shell placement assembly (15) are arranged between the two rotating shafts (30), an arc-shaped spray rod (18) is fixedly connected between the two rotating shafts (30), and a plurality of nozzles (19) are arranged on the lower surface of the arc-shaped spray rod (18).

2. A coated sand shell type layered injection molding device according to claim 1, characterized in that: The protective device (2) comprises a protective cover (35) and a metal block (17); the protective cover (35) is arranged in a hemispherical shape; two sides of the protective cover (35) are respectively rotatably connected to the two rotating shafts (30); and the metal block (17) is fixedly connected to one side of the protective cover (35).

3. A coated sand shell type layered injection molding device according to claim 2, characterized in that: An arc-shaped groove (16) is provided on the upper surface of the base (1), and the protective cover (35) can extend into the arc-shaped groove (16) and be slidably connected thereto.

4. A coated sand shell type layered injection molding device according to claim 3, characterized in that: The protective cover (35) is provided with a slide groove (29), the bottom wall of the slide groove (29) is provided with a rectangular through hole (28), and a sliding block (26) is slidably connected in the slide groove (29).

5. The coated sand shell type layered injection molding device according to claim 4, characterized in that: A support (12) is provided on one side of the protective cover (35), the support (12) is fixedly mounted on the upper surface of the base (1), and an electromagnet (13) is fixedly mounted on the upper surface of the support (12).

6. The coated sand shell type layered injection molding device according to claim 5, characterized in that: The coated sand shell placement assembly (15) comprises a turntable (20), a cross shaft (24) and a second motor (25), wherein the second motor (25) is embedded in the base (1), the cross shaft (24) is fixedly connected to the output end of the second motor (25), the turntable (20) is embedded in the upper surface of the base (1) and is rotatably connected thereto, a cross groove (23) is provided at the bottom of the turntable (20), and the cross shaft (24) is adapted to the cross groove (23).

7. The coated sand shell type layered injection molding device according to claim 6, characterized in that: A pair of handles (22) are fixedly connected to the upper surface of the turntable (20), and a plurality of balls (21) are embedded in the lower surface of the turntable (20). The plurality of balls (21) are evenly arranged in a circle with the cross groove (23) as the center.

8. The coated sand shell type layered injection molding device according to claim 7, characterized in that: The spray gun (3) comprises a gun body (31), a muzzle (34), a switch (32) and a handle (33); the gun body (31) is fixedly connected to one end of the hose (5); one end of the gun body (31) is provided with a muzzle (34); the lower surface of the gun body (31) is fixedly connected to two handles (33); a switch (32) is provided between the two handles (33); and the switch (32) is provided on the lower surface of the gun body (31).

9. The coated sand shell type layered injection molding device according to claim 8, characterized in that: A placement platform (4) is provided on one side of one of the fixed blocks (10), and the placement platform (4) is fixedly mounted on the upper surface of the base (1). A placement groove (14) is provided on the upper surface of the placement platform (4), and the placement groove (14) is compatible with the spray gun (3).

10. The coated sand shell type layered injection molding device according to claim 9, characterized in that: A control console (8) is provided on one side of the base (1).

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