CN118404812B - 3D printer - Google Patents

Abstract

The utility model provides a 3D printer, belong to printer technical field, complete contact when having solved the heating tank of current 3D printer and external air, make during the heating harmful substance flows to external operational environment, lead to operational environment to be bad, but if the heating tank is sealed completely in the stirring process, the air can not circulate, can make the problem that bubble is difficult to dissipate in the resin, a 3D printer, including the frame, the slide rail of setting at the frame lower extreme upper surface, sliding connection is at the print bed of slide rail top, fixed connection is at the first backup pad of the front side in the middle of the frame, through being provided with reciprocating mechanism and sliding mechanism, can drive sliding structure motion when reciprocating mechanism moves, make the resin can with the air contact of flow, can not cause the influence to the environment again, compared with prior art, reduce the discharge of toxic air current, thereby reached the purpose that makes operational environment better.

Description

A 3D printer

Technical Field

The present invention relates to the field of printers, and in particular to a 3D printer.

Background Art

A 3D printer is a machine that uses digital models to produce three-dimensional solid models. It can gradually build the model by adding materials layer by layer based on the digital model provided by the user, and finally form a solid object that can be touched and used.

The patent with publication number CN216230771U is in the field of 3D printer technology, especially a light-curing 3D printer heating trough, including a workbench and a work trough, the upper surface of the workbench is fixedly connected to an electric heater, and the surface of the electric heater is provided with an electric heating trough; when the raw material resin of the plastic is heated in the existing 3D printer heating trough, the components in the resin will decompose or volatilize, releasing harmful substances, and the heating trough of the existing 3D printer is in complete contact with the outside air, so that the harmful substances flow into the external working environment during heating, causing the working environment to deteriorate, but if the heating trough is completely sealed during the stirring process, the air cannot circulate, which will make the bubbles generated in the resin difficult to dissipate.

To solve the above problems, a 3D printer is proposed.

Summary of the invention

The purpose of the present invention is to provide a 3D printer, which solves the problem that the heating tank of the existing 3D printer is in complete contact with the outside air, so that harmful substances flow into the external working environment during heating, causing the working environment to deteriorate; however, if the heating tank is completely sealed during the stirring process, the air cannot circulate, which will make the bubbles generated in the resin difficult to dissipate.

To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a 3D printer, comprising a frame, a slide rail arranged on the upper surface of the lower end of the frame, a printing bed slidably connected to the upper side of the slide rail, a first support plate fixedly connected to the middle front side of the frame, a nozzle arranged below the first support plate, a heating tank fixedly connected to the left side of the upper surface of the upper end of the frame, a heating plate fixedly connected inside the heating tank, a feed port connected to the left side above the heating tank, a reciprocating mechanism arranged on the right side of the upper surface of the upper end of the frame, and a sliding mechanism arranged inside the heating tank;

The sliding mechanism includes a rotating assembly and a pushing assembly, and the pushing assembly is arranged at the rear side of the rotating assembly;

The reciprocating mechanism includes a motor fixedly connected to the right side of the upper surface of the upper end, a first rotating shaft at the output end of the motor, a left end of the first rotating shaft is fixedly connected to the first rotating rod, and the left end of the first rotating rod is fixedly connected to the third push rod, a first hole is connected to the upper right side of the heating groove, a first push rod is arranged inside the first hole, the upper end of the first push rod is fixedly connected to the first connecting plate, a first guide hole and second guide holes distributed on both sides of the first guide hole and connected thereto are arranged inside the first connecting plate, and the third push rod is slidably connected to the first guide hole and the second guide hole, and the lower end of the first push rod is laterally slidably connected to a rack, a pull plate is arranged below the rack, a first slide groove is arranged inside the pull plate, a first slider is arranged on the inner side of the first slide groove, the first slider is connected to the rack in a fixed manner, a second slide groove is connected to the inner wall of the front lower side of the heating groove, a second slider is arranged inside the second slide groove, the second slider is connected to the pull plate in a fixed manner, and the outer side surface of the second slider is in contact with the inner side surface of the second slide groove.

Preferably, the first guide hole and the second guide hole have the same width, and the appearance structure of the first guide hole is an arc shape, and the appearance structure of the second guide hole is a horizontal straight line shape.

Preferably, the inner side surface of the first hole fits with the outer side surface of the first push rod, and the appearance structure of the first push rod is a rectangular parallelepiped.

Preferably, the width of the upper end of the first sliding block is smaller than the width of the lower end of the first sliding block, and the outer side surface of the first sliding block is in contact with the inner side surface of the first sliding groove.

Preferably, the rotating assembly includes a gear arranged on the left side of the rack, the inner key of the gear is connected to the second rotating shaft, the second rotating shaft is connected to the heating groove by a rotating connection, the rear end of the second rotating shaft is fixedly connected to the fan, a first guide groove is opened on the inner wall of the left side of the front end of the heating groove, the upper and lower sides of the first guide groove are connected to the second guide groove, a third guide rod is arranged on the inner side of the first guide groove, and the third guide rod is connected to the rack by a fixed connection.

Preferably, the first guide groove and the third guide rod are matched in a clearance fit, and the appearance structure of the first guide groove is a vertical straight line.

Preferably, the outer vertex of the second guide groove near one end of the first connecting plate is biased to the left than the inner vertex, and the outer vertex of the second guide groove near one end of the pulling plate is biased to the right than the inner vertex.

Preferably, the pushing assembly includes a second connecting plate fixedly connected to the rear end of the rack, the second connecting plate is provided with a third guide groove inside, the inner wall of the third guide groove is connected with a third slide groove, the inner side of the third slide groove is provided with a third sliding block, the inner side of the third guide groove is provided with a fourth guide rod, the upper end of the fourth guide rod is fixedly connected with the telescopic rod, the upper end of the telescopic rod is fixedly connected with the second push rod, the upper inner wall of the heating groove is fixedly connected with a fixing plate, a second hole is provided inside the fixing plate, the second push rod is nested on the inner side of the second hole, the rear inner wall of the heating groove is connected with an air inlet, the upper inner wall of the front side of the heating groove is connected with an air outlet, the front and rear ends of the second push rod are fixedly connected with baffles, the upper and lower and left and right sides of the baffle are evenly inclined surfaces, the front side of the heating groove is fixedly connected with an air duct, and the inside of the air duct is provided with a filter.

Preferably, the appearance structure of the third guide groove is inclined, and the third guide groove and the fourth guide rod are matched in a clearance fit.

Preferably, the upper and lower sides of the baffle are inclined surfaces, and the left and right side surfaces of the baffle are inclined surfaces, and the front end width of the baffle is greater than the width of the air inlet and the air outlet.

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

A 3D printer provided by the present invention is provided with a reciprocating mechanism and a sliding mechanism. When the reciprocating mechanism moves, the sliding structure can be driven to move, so that the resin can contact with the flowing air without causing any impact on the environment. Compared with the prior art, the discharge of toxic airflow is reduced, thereby achieving the purpose of making the working environment better.

A 3D printer provided by the present invention can move bubbles at the bottom to the top by providing a reciprocating mechanism, and can mix materials, thereby achieving the purpose of making the bubbles more easily burst and dissipate.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall three-dimensional structure of the present invention;

FIG2 is a schematic diagram of a left-side cross-sectional structure of a heating tank according to the present invention;

FIG3 is a schematic diagram of a top cross-sectional structure of a heating tank according to the present invention;

FIG4 is a left-side structural schematic diagram of a first guide groove of the present invention;

FIG5 is a schematic diagram of a top cross-sectional structure of a second connecting plate of the present invention;

FIG6 is a schematic diagram of the structure of point A in FIG2 of the present invention;

Figure 7 is a schematic diagram of the structure of Figure 3 B of the present invention;

FIG8 is a schematic diagram of the front cross-sectional structure of the air guide duct of the present invention.

In the figure: 1, frame; 2, slide rail; 3, print bed; 4, first support plate; 5, nozzle; 6, heating tank; 7, heating plate; 10, feed port; 8, reciprocating mechanism; 9, sliding mechanism; 91, rotating assembly; 92, pushing assembly; 801, motor; 802, first rotating shaft; 803, first rotating rod; 804, third push rod; 805, first hole; 806, first push rod; 807, first connecting plate; 808, first guide hole; 809, second guide hole; 810, rack; 811, pull plate; 812, first slide groove; 813, first slider; 815, second slide groove ; 816, second slider; 9101, gear; 9102, second rotating shaft; 9103, fan; 9104, first guide groove; 9105, second guide groove; 9106, third guide rod; 9201, second connecting plate; 9202, third guide groove; 9203, third slide groove; 9204, third slider; 9205, fourth guide rod; 9206, telescopic rod; 9207, second push rod; 9208, fixing plate; 9209, second hole; 9210, air inlet; 9211, air outlet; 9212, baffle; 9213, air duct; 9214, filter.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on 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.

Please refer to Figures 1 to 8. The present invention provides a technical solution: a 3D printer, comprising a frame 1, a slide rail 2 arranged on the upper surface of the lower end of the frame 1, a printing bed 3 slidably connected to the upper side of the slide rail 2, a first support plate 4 fixedly connected to the middle front side of the frame 1, a nozzle 5 arranged below the first support plate 4, a heating groove 6 fixedly connected to the left side of the upper surface of the upper end of the frame 1, a heating plate 7 fixedly connected inside the heating groove 6, a feed port 10 connected to the left side above the heating groove 6, a reciprocating mechanism 8 is arranged on the right side of the upper surface of the upper end of the frame 1, and a sliding mechanism 9 is arranged inside the heating groove 6;

The sliding mechanism 9 includes a rotating assembly 91 and a pushing assembly 92, and the pushing assembly 92 is arranged at the rear side of the rotating assembly 91;

The reciprocating mechanism 8 includes a motor 801 fixedly connected to the right side of the upper surface of the frame 1, a first rotating shaft 802 is fixedly connected to the output end of the motor 801, a first rotating rod 803 is fixedly connected to the left end of the first rotating shaft 802, a third push rod 804 is fixedly connected to the left end of the first rotating rod 803, a first hole 805 is connected to the right side above the heating tank 6, a first push rod 806 is arranged inside the first hole 805, the inner side surface of the first hole 805 is in contact with the outer side surface of the first push rod 806, and the appearance structure of the first push rod 806 is a rectangular parallelepiped, so that the first push rod 806 is in the first hole When the inner side of 805 moves, it will not rotate or shake. The upper end of the first push rod 806 is fixedly connected to the first connecting plate 807. The first connecting plate 807 is provided with a first guide hole 808 and second guide holes 809 distributed on both sides of the first guide hole 808 and connected thereto. The third push rod 804 is slidably connected to the first guide hole 808 and the second guide hole 809. The width of the first guide hole 808 is the same as that of the second guide hole 809. The appearance structure of the first guide hole 808 is an arc shape, and the appearance structure of the second guide hole 809 is a horizontal straight The third push rod 804 does not drive the first connecting plate 807 to move up and down when it moves in the first guide hole 808. When it moves in the second guide hole 809, it can drive the first connecting plate 807 to move up and down. The lower end of the first push rod 806 is slidably connected with a rack 810 in a transverse direction. A pull plate 811 is provided below the rack 810. A first slide groove 812 is provided inside the pull plate 811. A first slider 813 is provided inside the first slide groove 812. The first slider 813 is connected to the rack 810 in a fixed manner. The width of the upper end is smaller than the width of the lower end of the first slider 813, and the outer side surface of the first slider 813 fits with the inner side surface of the first slide groove 812, so that the first slider 813 will not shake when moving on the inner side of the first slide groove 812, and the first slider 813 can drive the pull plate 811 to move upward when moving upward. A second slide groove 815 is connected to the inner wall of the heating groove 6, and a second slider 816 is arranged on the inner side of the second slide groove 815. The second slider 816 is connected to the pull plate 811 in a fixed connection, and the outer side surface of the second slider 816 fits with the inner side surface of the second slide groove 815.

The rotating assembly 91 includes a gear 9101 arranged on one side of the rack 810, the inner key of the gear 9101 is connected to the second rotating shaft 9102, the second rotating shaft 9102 is connected to the heating groove 6 in a rotating connection, the rear end of the second rotating shaft 9102 is fixedly connected to the fan 9103, a first guide groove 9104 is opened on the inner wall of the left side of the front end of the heating groove 6, the upper and lower sides of the first guide groove 9104 are connected to the second guide groove 9105, the inner side of the first guide groove 9104 is provided with a third guide rod 9106, the third guide rod 9106 is connected to the rack 810 in a fixed connection, the first guide groove 9104 and the third guide rod 9106 are matched in a clearance match, and the appearance structure of the first guide groove 9104 is The structure is vertically straight, so that the third guide rod 9106 can move on the inner side of the first guide groove 9104 without shaking, the outer vertex of the second guide groove 9105 near the end of the first connecting plate 807 is biased to the left than the inner vertex, and the outer vertex of the second guide groove 9105 near the end of the pulling plate 811 is biased to the right than the inner vertex, so that when the third guide rod 9106 moves to the top of the second guide groove 9105 at the upper end and moves downward, the third guide rod 9106 will move to the right side of the second guide groove 9105 at the upper end, and when the third guide rod 9106 moves to the top of the second guide groove 9105 at the lower end and moves upward, the third guide rod 9106 will move to the left side of the second guide groove 9105 at the lower end.

The pushing assembly 92 includes a second connecting plate 9201 fixedly connected to the rack 810, a third guide groove 9202 is arranged inside the second connecting plate 9201, a third slide groove 9203 is connected to the inner wall of the third guide groove 9202, a third slider 9204 is arranged on the inner side of the third slide groove 9203, a fourth guide rod 9205 is arranged on the inner side of the third guide groove 9202, the appearance structure of the third guide groove 9202 is inclined, and the third guide groove 9202 and the fourth guide rod 9205 are matched in a clearance fit, so that when the third guide groove 9202 moves to the left, the fourth guide rod 9205 can move forward, a telescopic rod 9206 is fixedly connected to the upper end of the fourth guide rod 9205, and a second push rod 9207 is fixedly connected to the upper inner wall of the heating groove 6. 208, a second hole 9209 is provided inside the fixing plate 9208, and the second push rod 9207 is nested inside the second hole 9209, an air inlet 9210 is connected on the rear inner wall of the heating groove 6, and an air outlet 9211 is connected on the upper front inner wall of the heating groove 6, and the front and rear ends of the second push rod 9207 are fixedly connected with baffles 9212, and the upper and lower and left and right sides of the baffle 9212 are evenly inclined surfaces, and an air duct 9213 is fixedly connected to the front side of the heating groove 6, and a filter screen 9214 is provided inside the air duct 9213, the upper and lower sides of the baffle 9212 are inclined surfaces, and the left and right side surfaces of the baffle 9212 are inclined surfaces, and the front end width of the baffle 9212 is greater than the width of the air inlet 9210 and the air outlet 9211, so that the front and rear baffles 9212 can block both the air inlet 9210 and the air outlet 9211.

When the resin needs to be heated, it needs to be in contact with flowing air without causing any impact on the environment. The specific operation is as follows:

Put the resin into the inner side of the heating groove 6, start the heating plate 7 to heat the resin, start the motor 801 to drive the first rotating shaft 802 to rotate, drive the first rotating rod 803 to rotate, and make the third push rod 804 rotate. When the third push rod 804 moves inside the first guide hole 808, it will not drive the first connecting plate 807 to move up and down. When the third push rod 804 moves inside the second guide hole 809, it will drive the first connecting plate 807 to move up and down, and drive the first push rod 806 to move up and down. Because the connection method between the first push rod 806 and the rack 810 is a horizontal sliding connection (refer to the connection method between the dovetail groove and the dovetail block, the first push rod 806 can drive the rack 810 to move in the vertical direction), the rack 810 and the first slider 813 move up and down, driving the pull plate 811 to move. The rack 810 moves up and down, and when the rack 810 moves upward, it drives the gear 9101 and the second rotating shaft 9102 to rotate, and drives the fan 9103 to rotate so that air can pass through. At this time, the third guide rod 9106 is on the inner side of the second guide groove 9105 on the left, driving the second connecting plate 9201 and the third guide groove 9202 to move to the left. Because the appearance structure of the third guide groove 9202 is inclined, the fourth guide rod 9205 and the telescopic rod 9206 move forward, driving the baffle 9212 and the second push rod 9207 to the front side, opening the air inlet 9210 and the air outlet 9211, so that the air flow can flow over the surface of the resin, so that the bubbles can be blown by the air flow to reduce the bubbles. The air flow reaches the filter 9214 from the air duct 9213, and the filter 9214 absorbs the toxicity of the air flow.

After the toxicity of the airflow is absorbed, the airflow has a certain temperature, which can increase the temperature of the print bed 3, making the temperature of the print bed more uniform, thereby improving the adhesion between the material and the print bed.

When the rack 810 moves up and down, it drives the pull plate 811 to move up and down. When the pull plate 811 moves up and down, the resin can be pushed and stirred to make it heated more evenly, and the bubbles below can be pushed upward to make it easier to contact with the airflow above and burst.

When the pull plate 811 moves up and down, the airflow flows through the surface of the broken resin, which is easy to generate new bubbles. It is necessary to reduce the generation of new bubbles. The specific operation is as follows:

When the rack 810 moves upward, the third guide rod 9106 is on the inner side of the second guide groove 9105 on the left side. At this time, the airflow flows over the surface of the resin to blow up the bubbles. When the third guide rod 9106 moves to the top of the upper second guide groove 9105 and moves downward, the third guide rod 9106 will move to the right side of the upper second guide groove 9105, so that the rack 810 moves to the right side without contacting the gear 9101, so that when the gear 9101 descends, it will not drive the gear 9101 and the second rotating shaft 9102 and the wind The fan 9103 does not move, and the air flow does not flow. At this time, the second connecting plate 9201 and the third guide groove 9202 move to the right, driving the fourth guide rod 9205 and the telescopic rod 9206 to move backward, driving the baffle 9212 and the second push rod 9207 backward, closing the air inlet 9210 and the air outlet 9211. The bubbles are pushed upward during the rise of the pull plate 811, and the air flow breaks the bubbles. However, it is inevitable that the air flow and the broken resin surface will produce new bubbles, so the plate will close the opening during the descending process to reduce the generation of new bubbles.

It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

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 (4)

1. The utility model provides a 3D printer, including frame (1), set up slide rail (2) at frame (1) lower extreme upper surface, sliding connection prints bed (3) in slide rail (2) top, first backup pad (4) of front side in the middle of frame (1) fixed connection, nozzle (5) of setting in first backup pad (4) below, fixed connection is at frame (1) upper end upper surface left heating tank (6), fixed connection is at inside hot plate (7) of heating tank (6), intercommunication is at left feed inlet (10) of heating tank (6) top, its characterized in that: a reciprocating mechanism (8) is arranged on the right side of the upper surface of the upper end of the frame (1), and a sliding mechanism (9) is arranged in the heating groove (6);

The sliding mechanism (9) comprises a rotating assembly (91) and a pushing assembly (92), and the pushing assembly (92) is arranged at the rear side of the rotating assembly (91);

The reciprocating mechanism (8) comprises a motor (801) fixedly connected to the right side of the upper surface of the frame (1), a first rotating shaft (802) is fixed at the output end of the motor (801), a first rotating rod (803) is fixedly connected to the left end of the first rotating shaft (802), a third push rod (804) is fixedly connected to the left end of the first rotating rod (803), a first hole (805) is communicated to the right side above the heating groove (6), a first push rod (806) is arranged in the first hole (805), a first connecting plate (807) is fixedly connected to the upper end of the first push rod (806), a first guide hole (808) and second guide holes (808) distributed on two sides of the first guide hole (808) and communicated with the first guide hole, and the third push rod (809) and the first guide hole (809) are in sliding connection with the second guide hole (809);

the lower end of the first push rod (806) is transversely connected with a rack (810) in a sliding manner, a pull plate (811) is arranged below the rack (810), a first sliding groove (812) is formed in the pull plate (811), a first sliding block (813) is arranged on the inner side of the first sliding groove (812), the first sliding block (813) is fixedly connected with the rack (810), a second sliding groove (815) is communicated with the inner wall below the front side of the heating groove (6), a second sliding block (816) is arranged on the inner side of the second sliding groove (815), the second sliding block (816) is fixedly connected with the pull plate (811), and the outer side face of the second sliding block (816) is attached to the inner side face of the second sliding groove (815);

The widths of the first guide hole (808) and the second guide hole (809) are consistent, the appearance structure of the first guide hole (808) is arc-shaped, and the appearance structure of the second guide hole (809) is horizontal and linear;

The rotating assembly (91) comprises a gear (9101) arranged on one side of the rack (810), a second rotating shaft (9102) is connected to the inner side key of the gear (9101), the second rotating shaft (9102) is in rotating connection with the heating groove (6), a fan (9103) is fixedly connected to the rear end of the second rotating shaft (9102), a first guide groove (9104) is formed in the inner wall of the heating groove (6), second guide grooves (9105) are communicated with the upper side and the lower side of the first guide groove (9104), a third guide rod (9106) is arranged on the inner side of the first guide groove (9104), and the third guide rod (9106) is fixedly connected with the rack (810);

The first guide groove (9104) is in clearance fit with the third guide rod (9106), and the appearance structure of the first guide groove (9104) is vertical and linear;

The outer side vertex of the second guide groove (9105) near one end of the first connecting plate (807) is far to the left than the inner side vertex, and the outer side vertex of the second guide groove (9105) near one end of the pulling plate (811) is far to the right than the inner side vertex;

The pushing component (92) comprises a second connecting plate (9201) fixed with a connecting rack (810), a third guide groove (9202) is formed in the second connecting plate (9201), a third sliding groove (9203) is communicated with the inner wall of the third guide groove (9202), a third sliding block (9204) is arranged on the inner side of the third sliding groove (9203), a fourth guide rod (9205) is arranged on the inner side of the third guide groove (9202), the upper end of the fourth guide rod (9205) is fixedly connected with a telescopic rod (9206), a second push rod (9207) is fixedly connected with the upper end of the telescopic rod (9206), a fixing plate (9208) is fixedly connected to the inner wall of the upper end of the heating groove (6), a second hole (9209) is formed in the inner side of the second hole (9209), a rear inner wall of the heating groove (6) is communicated with a fourth guide rod (9205), two ends of the air inlet (9207) are uniformly communicated with each other, two air inlet openings (12) are formed in the front side of the heating groove (926), two air inlet openings (9212) are uniformly communicated with each other, a filter screen (9214) is arranged in the air guide pipe (9213);

the appearance structure of the third guide groove (9202) is inclined, and the third guide groove (9202) and the fourth guide rod (9205) are in clearance fit.

2. A 3D printer according to claim 1, wherein: the inner side surface of the first hole (805) is attached to the outer side surface of the first push rod (806), and the appearance structure of the first push rod (806) is cuboid.

3. A 3D printer according to claim 1, wherein: the width of the upper end of the first sliding block (813) is smaller than that of the lower end of the first sliding block (813), and the outer side face of the first sliding block (813) is attached to the inner side face of the first sliding groove (812).

4. A 3D printer according to claim 2, wherein: the upper side and the lower side of the baffle plate (9212) are inclined surfaces, the left side and the right side of the baffle plate (9212) are inclined surfaces, and the front end width of the baffle plate (9212) is larger than the width of the air inlet (9210) and the air outlet (9211).