Quantitative feeding device for 3D printing light-cured resin for casting

Abstract

The utility model relates to the technical field of feeding devices, in particular to a quantitative feeding device for 3D printing light-cured resin for casting. According to the technical scheme, the feeding device comprises a feeding barrel, a material box, a conical head and an adjusting valve, the conical head is arranged at the lower end of the feeding barrel, the material box is arranged below the conical head, a feeding port is formed in the upper end of the material box, an ejector rod is arranged in the center of the feeding port, supporting blocks distributed in an annular array mode are arranged at the upper end of the material box, and the adjusting valve is arranged on one side of each supporting block. A spring is arranged on one side of the adjusting valve, a valve seat is arranged in the conical head, a valve block is arranged in the valve seat, a compression spring is arranged at the upper end of the valve block, the outer side of the feeding barrel is sleeved with a suction cover, a suction fan is arranged on one side of the feeding barrel, and hydraulic rods are arranged on the two sides of the feeding barrel. According to the 3D printing light-curing printing equipment, automatic quantitative feeding is achieved through the elastically-opened and closed feeding opening and extrusion opening and closing, the opening time of the feeding opening is short when the 3D printing light-curing printing equipment is used for feeding, and harm to personnel is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of feeding devices, in particular to a quantitative feeding device for 3D printing light-curing resin for casting. Background Art

[0002] Light-curing 3D printing for casting is usually used to make molds and parts of metal or other materials. This method combines the rapid prototyping capabilities of 3D printing with the precision of light-curing technology. After light curing, the strength of the 3D printed mold is improved.

[0003] During the use of the light-curing 3D printing device, it is necessary to add raw materials to the material box. The uncured resin is polluting to the environment. After the material port is opened, it will release odor before curing, which will reduce the quality of the surrounding air. In particular, the opening time of the artificial filler material port is long, which affects the health of the staff. For this reason, we propose a quantitative feeding device for 3D printing light-curing resin for casting to solve the existing problems. Utility Model Content

[0004] The purpose of the utility model is to address the problems existing in the background technology and to propose a quantitative feeding device for 3D printing light-curing resin for casting.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a quantitative feeding device of 3D printing photocurable resin for casting, comprising a feeding barrel, a material box, a cone head and a regulating valve, wherein a cone head is arranged at the lower end of the feeding barrel, a material box is arranged below the cone head, a feeding port is opened at the upper end of the material box, a push rod is arranged at the center of the feeding port, a support block distributed in a ring array is arranged at the upper end of the material box, a regulating valve is arranged on one side of the support block, a spring is arranged on one side of the regulating valve, a valve seat is arranged inside the cone head, a valve block is arranged inside the valve seat, a compression spring is arranged on the upper end of the valve block, a suction hood is sleeved on the outer side of the feeding barrel, a suction fan is arranged on one side of the feeding barrel, and hydraulic rods are arranged on both sides of the feeding barrel.

[0006] Preferably, a visual window is provided inside the front end of the feed barrel, through which the resin situation inside the feed barrel can be understood.

[0007] Preferably, a guide rod is provided at one end of the regulating valve, one end of the spring is connected to a support block, a sleeve is embedded and installed inside the support block, and one end of the guide rod is slidably inserted inside the sleeve. When the spring is extended or retracted, the guide rod slides inside the sleeve to limit the spring and prevent it from bending when moving.

[0008] Preferably, the inner wall of the regulating valve is provided with a conical surface, the regulating valve is located above the feed port, and the outer wall of the cone head is adapted to the conical surface. When the outer wall of the regulating valve contacts the conical surface, the extrusion resistance to the regulating valve is reduced.

[0009] Preferably, a support ring is provided at the upper end of the compression spring, and the support ring is connected to the outer wall of the valve seat and the inner wall of the cone head. The compression spring is mounted at the upper end through the support ring and fixed inside the cone head.

[0010] Preferably, the suction end of the suction fan is provided with a suction pipe, the lower end of the suction pipe passes through the suction hood, and the output end of the suction fan is provided with a delivery pipe, which is connected to the purification component. The suction force of the suction fan acts on the inside of the suction pipe, and then is transmitted to the suction hood, sucking the escaped gas under the cone head, and delivering it to the evolution component through the delivery pipe to purify the irritating odor.

[0011] Preferably, the outer wall of the feed barrel is sleeved with a lifting ring, the lower end of the hydraulic rod is connected to the lifting ring, the outer wall of the hydraulic rod is sleeved with a bracket, and a mounting hole is opened inside the bracket. The hydraulic rod is installed through the bracket, and the mounting hole is used for plugging in the fixing part.

[0012] Preferably, the outer wall of the push rod is provided with support rods distributed in an annular array and connected to the inner wall of the feed port, the support rod is located at the center of the regulating valve, and the outer wall is provided with a sealing gasket, the upper end of the support rod corresponds to the valve seat, the upper end of the feed barrel is provided with an addition port, and the addition port and the feed box are provided with a material valve. When the center of the regulating valve fits with the outer wall of the support rod, the sealing is improved by the sealing gasket, and materials are added to the inside of the feed barrel through the addition port, and the opening and closing of the addition port and the output end are controlled by the material valve.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model pre-stores light-curing resin in a pre-stored feeding barrel. When the light-curing resin needs to be added to the 3D printing light-curing device, the hydraulic rod drives the feeding barrel to descend, and the regulating valve moves outward by extrusion, the spring is squeezed, and the valve seat moves outward synchronously, so that the feed port of the material box is opened. At the same time, the push rod squeezes the valve block to rise, the compression spring is squeezed, and the feed port and the cone head are connected, thereby realizing the conveying of raw materials to the material box of the 3D printing light-curing device, avoiding the problems of manual addition, long opening time of the feed port, slow feeding, and great environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;

[0017] Figure 3 This is a schematic diagram of the structure of the regulating valve of the utility model from a top view;

[0018] Figure 4It is a schematic diagram of the main sectional three-dimensional structure of the cone head of the utility model.

[0019] Figure numerals: 1. feeding barrel; 2. visual window; 3. suction fan; 4. conveying pipe; 5. suction pipe; 6. hydraulic rod; 7. suction hood; 8. guide rod; 9. material box; 10. feeding port; 11. supporting block; 12. cone head; 13. material valve; 14. regulating valve; 15. spring; 16. adding port; 17. sliding sleeve; 18. cone surface; 19. valve seat; 20. valve block; 21. supporting ring; 22. push rod; 23. support rod; 24. compression spring. DETAILED DESCRIPTION

[0020] 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.

[0021] like Figure 1-Figure 4As shown, the utility model proposes a quantitative feeding device for 3D printing light-curing resin for casting, including a feeding barrel 1, a material box 9, a cone head 12 and a regulating valve 14. The lower end of the feeding barrel 1 is provided with a cone head 12, and the material box 9 is provided below the cone head 12. The upper end of the material box 9 is provided with a feeding port 10, and a push rod 22 is provided at the center of the feeding port 10. The outer wall of the push rod 22 is provided with a ring array of support rods 23 connected to the inner wall of the feeding port 10. The front end of the feeding barrel 1 is provided with a Window 2, the upper end of the material box 9 is provided with a support block 11 distributed in a ring array, a regulating valve 14 is provided on one side of the support block 11, a guide rod 8 is provided on one end of the regulating valve 14, a spring 15 is provided on one side of the regulating valve 14, one end of the spring 15 is connected to the support block 11, a sliding sleeve 17 is embedded and installed inside the support block 11, one end of the guide rod 8 is slidably inserted inside the sliding sleeve 17, a conical surface 18 is provided on the inner wall of the regulating valve 14, the regulating valve 14 is located above the feed port 10, and a conical head 12 is provided inside A valve seat 19 is arranged, a valve block 20 is arranged inside the valve seat 19, a compression spring 24 is arranged on the upper end of the valve block 20, a support ring 21 is arranged on the upper end of the compression spring 24, the support ring 21 is connected to the outer wall of the valve seat 19 and the inner wall of the cone head 12, a suction hood 7 is sleeved on the outer side of the feeding barrel 1, a suction fan 3 is arranged on one side of the feeding barrel 1, a suction pipe 5 is arranged at the extraction end of the suction fan 3, the lower end of the suction pipe 5 passes through the suction hood 7, a delivery pipe 4 is arranged at the output end of the suction fan 3, and the delivery pipe 4 is connected to the purification component The outer wall of the cone head 12 is adapted to the cone surface 18, hydraulic rods 6 are provided on both sides of the feeding barrel 1, a lifting ring is sleeved on the outer wall of the feeding barrel 1, the lower end of the hydraulic rod 6 is connected to the lifting ring, a bracket is sleeved on the outer wall of the hydraulic rod 6, a mounting hole is provided inside the bracket, a support rod 23 is located at the center of the regulating valve 14, and a sealing gasket is provided on the outer wall, the upper end of the support rod 23 corresponds to the valve seat 19, an addition port 16 is provided inside the upper end of the feeding barrel 1, and a material valve 13 is provided inside the addition port 16 and the feeding box.

[0022] The implementation steps based on Example 1 are as follows: a certain amount of photocurable resin is added to the inside of the feed box 9 in advance. After the photocurable resin in the feed box 9 is used up, the hydraulic rod 6 drives the feed barrel 1 to descend. At this time, the cone head 12 pressurizes the regulating valve 14. After the regulating valve 14 is stressed, a pressure is applied to the spring 15. Through the conical surface 18, during the descent of the cone head 12, the regulating valve 14 is opened, the cone head 12 is plugged into the inside of the feed port 10, and the push rod 22 intercepts the valve block 20. Under the action of the continuous downward force, the valve block 20 squeezes the compression spring 24, and the inside of the cone head 12 is connected with the feed port 10. The photocurable resin in the feed barrel 1 is transported to the inside of the feed box 9, avoiding artificial filling, and quickly feeding quantitatively through the pre-stored photocurable resin.

[0023] After feeding, the hydraulic rod 6 drives the feeding barrel 1 to lift, the cone head 12 to lift, the valve block 20 gradually stops supporting the push rod 22, the compression spring 24 is forced to squeeze the valve block 20 down, the valve block 20 closes the valve seat 19, the cone head 12 gradually stops squeezing the regulating valve 14, the spring 15 stops being forced, and pushes the regulating valve 14 to move to the center of the feed port 10. After fitting the push rod 22, the feed port 10 is closed, and the feed port 10 of the material box 9 is opened by pressurization. With the hydraulic rod 6 as the driving force, the 3D printing light curing device can be opened conveniently. After opening, it can be closed quickly, avoiding the problem of manual opening damaging the health of personnel, and during feeding, the suction force of the suction fan 3 acts on the feed port 10 through the suction hood 7, and the irritating odor that escapes is sucked and transported, reducing the pollution of the irritating odor to the environment.

[0024] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A quantitative feeding device for 3D printing light-curing resin for casting, comprising a feeding cylinder (1), a material box (9), a cone head (12) and a regulating valve (14), characterized in that: The feeding barrel (1) is provided with a cone head (12) at the lower end, a material box (9) is provided below the cone head (12), a feeding port (10) is provided at the upper end of the material box (9), a push rod (22) is provided at the center of the feeding port (10), a support block (11) distributed in a ring array is provided at the upper end of the material box (9), a regulating valve (14) is provided on one side of the support block (11), a spring (15) is provided on one side of the regulating valve (14), a valve seat (19) is provided inside the cone head (12), a valve block (20) is provided inside the valve seat (19), a compression spring (24) is provided at the upper end of the valve block (20), a suction hood (7) is sleeved on the outer side of the feeding barrel (1), a suction fan (3) is provided on one side of the feeding barrel (1), and hydraulic rods (6) are provided on both sides of the feeding barrel (1).

2. A quantitative feeding device for 3D printing light-curing resin for casting according to claim 1, characterized in that: A visual window (2) is provided inside the front end of the feeding cylinder (1).

3. A quantitative feeding device for 3D printing light-curing resin for casting according to claim 1, characterized in that: A guide rod (8) is provided at one end of the regulating valve (14), one end of the spring (15) is connected to the support block (11), a sliding sleeve (17) is embedded and installed inside the support block (11), and one end of the guide rod (8) is slidably inserted into the inside of the sliding sleeve (17).

4. A quantitative feeding device for 3D printing light-curing resin for casting according to claim 1, characterized in that: The inner wall of the regulating valve (14) is provided with a conical surface (18), the regulating valve (14) is located above the feed port (10), and the outer wall of the cone head (12) is adapted to the conical surface (18).

5. A quantitative feeding device for 3D printing light-curing resin for casting according to claim 1, characterized in that: A support ring (21) is provided at the upper end of the compression spring (24), and the support ring (21) is connected to the outer wall of the valve seat (19) and the inner wall of the cone head (12).

6. A quantitative feeding device for 3D printing light-curing resin for casting according to claim 1, characterized in that: The suction end of the suction fan (3) is provided with a suction pipe (5), the lower end of the suction pipe (5) passes through the suction hood (7), and the output end of the suction fan (3) is provided with a delivery pipe (4), and the delivery pipe (4) is connected to the purification component.

7. A quantitative feeding device for 3D printing light-curing resin for casting according to claim 2, characterized in that: The outer wall of the feeding barrel (1) is sleeved with a lifting ring, the lower end of the hydraulic rod (6) is connected to the lifting ring, the outer wall of the hydraulic rod (6) is sleeved with a bracket, and a mounting hole is opened inside the bracket.

8. A quantitative feeding device for 3D printing light-curing resin for casting according to claim 1, characterized in that: The outer wall of the push rod (22) is provided with support rods (23) distributed in a circular array and connected to the inner wall of the feed port (10); the support rods (23) are located at the center of the regulating valve (14) and the outer wall is provided with a sealing gasket; the upper end of the support rod (23) corresponds to the valve seat (19); the upper end of the feeding barrel (1) is provided with an addition port (16); the addition port (16) and the feeding box are provided with a material valve (13).

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