CN115533129A

CN115533129A - Controllable temperature detection device for SLM printer forming bin

Info

Publication number: CN115533129A
Application number: CN202211352061.5A
Authority: CN
Inventors: 马桂殿; 李旺
Original assignee: Nanjing Chenglian Laser Technology Co Ltd
Current assignee: Nanjing Chenglian Laser Technology Co Ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2022-12-30

Abstract

The invention discloses a controllable temperature detection device for a SLM printer forming bin, which comprises a printer body, wherein a forming cavity is arranged in the printer body, a printing base station is arranged at the bottom of the forming cavity, a temperature detection assembly is arranged on the side wall of the forming cavity and used for detecting the temperature in the forming cavity, an alarm device is arranged on one side of the printer body and matched with the temperature detection assembly, a square through groove is formed in the side wall of the forming cavity, and the temperature detection assembly is positioned in the square through groove; through setting up alarm device, high temperature signal transmits alarm device, and alarm device sends the police dispatch newspaper, reminds the staff to carry out rapid cooling and handles, avoids lasting high temperature to cause the conflagration, simultaneously through alarm device, avoids that the staff negligence or because of the accident do not have the high temperature condition of in time observing that the printer body leads to of real-time observation, improves the security of device, and the reduction is unexpected.

Description

Controllable temperature detection device for SLM printer forming bin

Technical Field

The invention relates to the technical field of temperature detection of an SLM printer body, in particular to a controllable temperature detection device for a forming bin of an SLM printer.

Background

The SLM metal printer is a scientific instrument used in engineering and technology science basic subjects, mechanical engineering and product application related engineering and technical fields, mainly depends on a selective laser melting metal technology, which is to scan by using a high-energy density laser beam under the control of a computer program, selectively melt a pre-laid metal powder layer and combine the metal powder layer with matrix metallurgy, then lay powder layer by layer and scan continuously, and finally complete the manufacture of three-dimensional metal parts.

SLM metal printer can produce a large amount of heats when printing, when a large amount of heats can not be discharged, then need the workman to stop the printer and dispel the heat, nevertheless when the staff does not notice the printer high temperature, high temperature can lead to the inside electronic component of printer organism to damage, can produce the explosion phenomenon of catching fire even, so need one kind can detect the printer temperature in can remind staff's device when the printer high temperature.

Disclosure of Invention

The invention aims to provide a controllable temperature detection device for a SLM printer forming bin aiming at the defects of the prior art so as to solve the problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a controllable SLM printer temperature-detecting device for shaping storehouse, is including printing the organism, the internal shaping chamber that is equipped with of printer, the bottom that becomes the shaping chamber is equipped with prints the base station, the lateral wall that becomes the shaping chamber is equipped with temperature detect assembly, temperature detect assembly is used for detecting the temperature in the shaping chamber, one side of printing the organism is equipped with alarm device, alarm device cooperatees with temperature detect assembly, the lateral wall that becomes the shaping chamber is equipped with square through groove, temperature detect assembly is located square through groove.

As a preferential scheme of the invention, the temperature detection assembly comprises a supporting plate, the supporting plate is positioned in the square through groove and is fixed on the bottom surface of the square through groove, the side wall of the square through groove is rotatably connected with a rotating plate, one end of the rotating plate, which is positioned in the forming cavity, is fixedly connected with a round cylinder, the upper end of the round cylinder is fixedly connected with a breathable cover plate, the inner wall of the round cylinder is fixedly connected with an elastic bag, and the elastic bag is filled with environment-sensitive hydrogel.

As a preferred aspect of the present invention, a through hole is formed in one side of the printer body, a circular ring is fixedly connected in the through hole, a support plate is fixedly connected to an inner wall of the circular ring, a fan is rotatably connected to one side of the support plate, a main shaft of the fan penetrates through the support plate and is fixedly connected to a first belt pulley, a transverse plate is fixedly connected to one side of the printer body, a vertical plate is fixed to a lower surface of the transverse plate, a servo motor is fixed to one side of the vertical plate, a main shaft of the servo motor is fixedly connected to a second belt pulley, a belt is connected between the first belt pulley and the second belt pulley, and the belt penetrates through the circular ring.

According to a preferred scheme of the invention, the alarm device comprises a square plate, the square plate is positioned above the square through groove and fixedly connected with the printer body, the upper surface of one end, positioned outside the printer body, of the rotating plate is fixedly connected with a traction rope, the traction rope upwards penetrates through the square plate, a sliding groove is formed in one side of the printer body, a sliding block is slidably connected in the sliding groove, a first spring is fixedly connected between the sliding block and the sliding groove, one side of the sliding block is fixedly connected with a rack, one side of the rack is fixedly connected with a connecting plate, the traction rope is fixedly connected with the connecting plate, one side of the printer body is fixedly connected with a first gear and a second gear, the radius of the first gear is larger than that of the second gear, the first gear is meshed with the rack, the first gear is meshed with the second gear, one side of the second gear is fixedly connected with a reel, one side of the vertical plate is fixedly connected with an alarm, and a control line is connected between the alarm and the reel.

As a preferred scheme of the invention, the upper surface of the printer body is fixedly connected with a water tank, one side of the water tank is provided with a control device, condensate is stored in the water tank, one side of the water tank is communicated with a delivery pipe, one side of the circular ring is fixedly connected with a spiral condensing pipe, the delivery pipe is communicated with the condensing pipe, and the delivery pipe penetrates through the printer body and the circular ring.

As a preferential scheme of the invention, the control device comprises a control valve, the control valve is installed on one side of the water tank and is used for controlling condensate to enter the conveying pipe, the transverse plate is connected with a sliding rod in a sliding mode, a second spring is fixedly connected between the sliding rod and the transverse plate, one side of the sliding rod is fixedly connected with a poking rod, the poking rod is matched with the control valve, a poking block is fixed on one side of the lower end of the sliding rod, a round rod is fixedly connected with one side of the second belt pulley, and an excircle of the round rod rotates a one-way rotating rod.

As a preferential scheme of the invention, a torsional spring is arranged at the joint of the unidirectional rotating rod and the round rod, a first cambered surface is arranged on one side of the unidirectional rotating rod, and a second cambered surface is arranged on one side of the toggle block.

Compared with the prior art, the invention provides a controllable temperature detection device for an SLM printer forming bin, which has the following beneficial effects:

1. according to the controllable temperature detection device for the SLM printer forming bin, the alarm device is arranged, when the temperature detection assembly detects that the temperature inside the forming cavity is high, a high-temperature signal is transmitted to the alarm device, the alarm device gives an alarm to remind a worker of rapidly cooling, a fire disaster caused by lasting high temperature is avoided, meanwhile, through the alarm device, the situation that the worker neglects or does not observe high temperature in time due to the fact that the worker does not observe a printing machine body in real time is avoided, the safety of the device is improved, and accidents are reduced;

2. according to the controllable temperature detection device for the SLM printer forming bin, hydrogel and an elastic bag are arranged, when the temperature in a cavity is normal, a rotating plate and a supporting plate are kept in a horizontal parallel state, when the temperature in the cavity is too high, the hydrogel detects that the temperature is high and can shrink at high temperature, the elastic bag shrinks and loses the support of the elastic bag, a torsional spring is arranged at the joint of the rotating plate and a printer body, one end of the rotating plate, close to the elastic bag, is close to the supporting plate, the rotating plate inclines, the hydrogel is very sensitive to tiny changes of the surrounding environment, and the hydrogel can react very quickly to the temperature changes in the forming cavity;

3. according to the controllable temperature detection device for the SLM printer forming bin, the first gear and the second gear are arranged, when the rotating plate inclines, the other end of the rotating plate pulls the rack to move downwards through the traction rope and the connecting plate, the rack drives the first gear to rotate, the first gear drives the second gear to rotate, the radius of the first gear is larger than that of the second gear, the rotating amplitude of the second gear is larger, the first gear and the second gear can amplify tiny rotating actions of the rotating plate, even if the rotating plate only slightly inclines, the second gear can generate larger rotation through amplification of the first gear and the second gear, the phenomenon is obvious, and omission is avoided;

4. this controllable temperature-detecting device for SLM printer shaping storehouse, through setting up the condenser pipe, servo motor drives the one-way dwang and rotates, stir the slide bar, make the slide bar downstream, the slide bar passes through the stirring pole and dials control valve downwards simultaneously, make the control valve open, the condensate passes through the conveyer pipe and gets into the spiral condenser pipe, make condenser pipe ambient temperature reduce, the wind that produces by the fan is cooled off when passing the condenser pipe, cold wind gets into the shaping chamber, carry out rapid cooling to the shaping chamber and handle, avoid lasting high temperature to damage the printing organism, release the manpower simultaneously, even the staff is out, the device can carry out rapid cooling to the shaping chamber immediately.

Drawings

FIG. 1 is a schematic perspective view of the present apparatus;

FIG. 2 is a side view of the device;

FIG. 3 is a schematic cross-sectional view of the present apparatus;

FIG. 4 is an enlarged schematic view of the structure at A in FIG. 3;

FIG. 5 is a schematic view of the alarm device;

FIG. 6 is a schematic structural view of a condenser tube;

FIG. 7 is an enlarged view of the structure at B in FIG. 6;

fig. 8 is a schematic structural diagram of the control device.

In the figure: 1. a printer body; 11. a molding cavity; 12. printing a base station; 2. a temperature detection assembly; 21. a support plate; 22. a rotating plate; 23. a circular cylinder; 24. a cover plate; 25. an elastic bag; 26. a hydrogel; 3. a circular ring; 31. a support plate; 32. a fan; 33. a first pulley; 34. a transverse plate; 35. a vertical plate; 36. a servo motor; 37. a second pulley; 4. an alarm device; 41. a square plate; 42. a hauling rope; 43. a slider; 44. a first spring; 45. a rack; 46. a connecting plate; 47. a first gear; 48. a second gear; 401. a reel; 402. an alarm; 403. a control line; 5. a water tank; 51. a delivery pipe; 52. a condenser tube; 6. a control device; 61. a control valve; 62. a slide bar; 63. a second spring; 64. a poke rod; 65. a shifting block; 66. a round bar; 67. a unidirectional rotating rod; 68. a first arc surface; 69. a second cambered surface.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, in this embodiment:

the utility model provides a controllable temperature-detecting device for SLM printer shaping storehouse, including printing organism 1, be equipped with shaping chamber 11 in the printing organism 1, the bottom of shaping chamber 11 is equipped with prints base station 12, the lateral wall that becomes chamber 11 is equipped with temperature-detecting component 2, temperature-detecting component 2 is used for detecting the temperature in the shaping chamber 11, one side of printing organism 1 is equipped with alarm device 4, alarm device 4 cooperatees with temperature-detecting component 2, the lateral wall that becomes chamber 11 is equipped with square through groove, temperature-detecting component 2 is located square through groove, one side of printing organism 1 is equipped with the through hole, through hole fixed connection circular ring 3, the inner wall fixed connection extension board 31 of circular ring 3, one side of extension board 31 is rotated and is connected fan 32, fan 32's main shaft runs through extension board 31 and the first belt pulley 33 of fixed connection, one side fixed connection diaphragm 34 of printing organism 1, the lower fixed surface riser 35 of diaphragm 34, servo motor 36 is fixed to one side of riser 35, servo motor 36's main shaft fixed connection second belt pulley 37, be connected between first belt pulley 33 and the second belt pulley 37, the belt passes circular ring 3.

When the printer body 1 prints, a large amount of heat and smoke are generated, at this time, the servo motor 36 is started, the fan 32 is driven to rotate in the forward direction through the first belt pulley 33 and the second belt pulley 37, the smoke and the heat in the molding cavity 11 are extracted, a heat dissipation effect is achieved, meanwhile, the temperature detection assembly 2 detects the temperature inside the molding cavity 11, when a large-scale metal model is printed and manufactured inside the printer body 1, due to the fact that printing time is too long, a large amount of heat is continuously generated, the fan 32 fixes the heat dissipation effect in the molding cavity 11, when the heat generated inside the molding cavity 11 is larger than the heat extracted by the fan 32, the temperature inside the molding cavity 11 can be too high, at this time, when the temperature detection assembly 2 detects that the temperature inside the molding cavity 11 is high, a high-temperature signal can be transmitted to the alarm device 4, the alarm device 4 gives an alarm to remind a worker of performing rapid cooling processing, a fire caused by lasting high temperature is avoided, meanwhile, through the alarm device, the situation that the worker cannot observe the high-temperature in time and the high-temperature condition caused by the printer body in real time is avoided, the safety of the device is improved, and accidents are reduced.

The temperature detection assembly 2 comprises a supporting plate 21, the supporting plate 21 is located in a square through groove and is fixedly arranged on the bottom surface of the square through groove, the side wall of the square through groove is rotatably connected with a rotating plate 22, the rotating plate 22 is located at one end of a forming cavity 11 and is fixedly connected with a round barrel 23, the upper end of the round barrel 23 is fixedly connected with a ventilation cover plate 24, the inner wall of the round barrel 23 is fixedly connected with an elastic bag 25, the elastic bag 25 is internally provided with an environment-sensitive hydrogel 26, the alarm device 4 comprises a square plate 41, the square plate 41 is located above the square through groove and is fixedly connected with the printer body 1, the rotating plate 22 is located at the upper surface of one end outside the printer body 1 and is fixedly connected with a traction rope 42, the traction rope 42 upwards penetrates through the square plate 41, one side of the printer body 1 is provided with a sliding groove, a sliding block 43 is slidably connected in the sliding groove, a first spring 44 is fixedly connected between the sliding block 43 and the sliding groove, one side of the sliding block 43 is fixedly connected with a rack 45, one side of the rack 45 is fixedly connected with a connecting plate 46, the traction rope 42 is fixedly connected with a connecting plate 46, one side of the first gear 47 and a second gear 47, one side of a reel is fixedly connected with a control line 401 which is connected with a second gear which is fixedly meshed with a second gear 402.

When the temperature in the molding cavity 11 is normal, the rotating plate 22 is kept in a horizontal state, the lower end of the round tube 23 abuts against the support plate 21, the rotating plate 22 and the support plate 21 are kept in a horizontal parallel state, when the temperature in the molding cavity 11 is too high, the hydrogel 26 detects that the temperature is high and generates a high-temperature shrinkage phenomenon, the elastic bag 25 is in a bulging state and abuts against the support plate 21 at the beginning, the rotating plate 22 is kept horizontal, when the hydrogel 26 shrinks at the high temperature, the elastic bag 25 shrinks and loses the support of the elastic bag 25, a torsion spring is arranged at the joint of the rotating plate 22 and the printer body 1, one end of the rotating plate 22, which is close to the elastic bag 25, is close to the support plate 21, the rotating plate 22 inclines, the hydrogel 26 is very sensitive to the tiny change of the surrounding environment, and the reaction is very fast to the temperature change of the hydrogel 26 in the molding cavity 11;

when the rotating plate 22 inclines, the other end of the rotating plate 22 pulls the rack 45 to move downwards through the traction rope 42 and the connecting plate 46, the rack 45 drives the first gear 47 to rotate, the first gear 47 drives the second gear 48 to rotate, the radius of the first gear 47 is larger than that of the second gear 48, the rotation amplitude of the second gear 48 is larger, the first gear 47 and the second gear 48 can amplify the tiny rotation action of the rotating plate 22, even if the rotating plate 22 only slightly inclines, the second gear 48 can generate larger rotation through the amplification of the first gear 47 and the second gear 48, the phenomenon is obvious, the device can more accurately detect the temperature in the forming cavity 11, the second gear 48 rotates to drive the reel 401 to wind the control wire 403, and the control wire 403 pulls the alarm 402, so that the alarm 402 makes a sound to warn a worker.

The upper surface of the printer body 1 is fixedly connected with a water tank 5, one side of the water tank 5 is provided with a control device 6, condensate is stored in the water tank 5, one side of the water tank 5 is communicated with a conveying pipe 51, one side of a circular ring 3 is fixedly connected with a spiral condensing pipe 52, the conveying pipe 51 is communicated with the condensing pipe 52, the conveying pipe 51 penetrates through the printer body 1 and the circular ring 3, the control device 6 comprises a control valve 61, the control valve 61 is installed on one side of the water tank 5, the control valve 61 is used for controlling the condensate to enter the conveying pipe 51, a sliding rod 62 is slidably connected on a transverse plate 34, a second spring 63 is fixedly connected between the sliding rod 62 and the transverse plate 34, one side of the sliding rod 62 is fixedly connected with a poking rod 64, the poking rod 64 is matched with the control valve 61, one side of the lower end of the sliding rod 62 is fixedly provided with a poking block 65, one side of a second belt pulley 37 is fixedly connected with a circular rod 66, an outer circle of the circular rod 66 rotates a one-way rotating rod 67, a torsion spring is arranged at the joint of the one-way rotating rod 67, one-way rotating rod 67 is provided with a first cambered surface 68, and one side of the poking block 65 is provided with a second cambered surface 69.

When the temperature in the molding cavity 11 is normal, the servo motor 36 rotates forward, the fan 32 draws heat out, at this time, the first cambered surface 68 on the unidirectional rotating rod 67 in a rotating state contacts the second cambered surface 69 on one side of the toggle block 65, the unidirectional rotating rod 67 deflects to avoid the toggle block, when the alarm 402 gives a sound to warn a worker, the servo motor 36 rotates reversely, the fan 32 is changed from air drawing to air blowing, the heat is blown away, the reverse servo motor 36 drives the unidirectional rotating rod 67 to rotate, the sliding rod 62 is toggled to move downwards, the sliding rod 62 dials the control valve 61 downwards through the toggle rod 64, the control valve 61 is opened, condensate enters the spiral condenser pipe 52 through the conveying pipe 51, the temperature around the condenser pipe 52 is reduced, the air generated by the fan 32 passes through the condenser pipe 52 and is cooled, cold air enters the molding cavity 11, rapid cooling processing is performed on the molding cavity 11, continuous high temperature damage to the printer body 1 is avoided, and manpower is released at the same time, even if the worker is absent, the device can perform rapid cooling processing on the molding cavity 11 in time.

The working principle and the using process of the invention are as follows: when the temperature in the molding cavity 11 is normal, the servo motor 36 is started at the moment, the fan 32 is driven to rotate forward through the first belt pulley 33 and the second belt pulley 37, smoke and heat in the molding cavity 11 are extracted, the elastic bag 25 is in a bulging state at the moment and is pressed against the support plate 21, the rotating plate 22 is kept horizontal, when the temperature in the molding cavity 11 rises, the hydrogel 26 detects that the temperature rises and generates a high-temperature shrinkage phenomenon, the elastic bag 25 shrinks and loses the support of the elastic bag 25, one end of the rotating plate 22 close to the elastic bag 25 approaches the support plate 21, the rotating plate 22 inclines, the rack 45 drives the first gear 47 to rotate, the first gear 47 drives the second gear 48 to rotate, the second gear 48 rotates to drive the winding reel 401 to wind the control wire 403, the control wire 403 pulls the alarm 402 to make the alarm 402 give a sound to warn a worker, when the alarm 402 gives a sound to warn the worker, the servo motor 36 rotates reversely, the fan 32 blows air, the heat is blown away, the reversely rotated servo motor 36 drives the unidirectional rotation of the reverse rotation, the slide rod 62 to move downwards to make the slide rod 62 move, the slide rod 62 simultaneously, the condensate pipe 52 passes through the condensate pipe 52, and the condensate pipe 52 is cooled by the condensate pipe 52, and the condensate pipe 52 is cooled by the condensate pipe 52.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a controllable SLM printer temperature-detecting device for shaping storehouse which characterized in that: including printing organism (1), be equipped with into die cavity (11) in printing organism (1), the bottom that becomes die cavity (11) is equipped with prints base station (12), the lateral wall that becomes die cavity (11) is equipped with temperature-detecting component (2), temperature-detecting component (2) are used for detecting the temperature in the die cavity (11), one side of printing organism (1) is equipped with alarm device (4), alarm device (4) cooperate with temperature-detecting component (2), the lateral wall that becomes die cavity (11) is equipped with square through groove, temperature-detecting component (2) are located square through inslot.

2. The controllable temperature detection device for the SLM printer forming chamber as claimed in claim 1, wherein: temperature-detecting component (2) includes backup pad (21), backup pad (21) are located square through inslot and fixed square through groove's bottom surface, the lateral wall that square through groove rotates connects rotor plate (22), rotor plate (22) are located the one end fixed connection circular section of thick bamboo (23) of one-tenth die cavity (11), the upper end fixed connection ventilative apron (24) of circular section of thick bamboo (23), the inner wall fixed connection elastic bag (25) of circular section of thick bamboo (23), environment sensitive type aquogel (26) are equipped with in elastic bag (25).

3. The controllable temperature detection device for the SLM printer forming chamber as claimed in claim 1, wherein: one side of printing organism (1) is equipped with the through hole, fixed connection ring (3) in the through hole, inner wall fixed connection extension board (31) of ring (3), one side of extension board (31) is rotated and is connected fan (32), the main shaft of fan (32) runs through extension board (31) and the first belt pulley of fixed connection (33), one side fixed connection diaphragm (34) of printing organism (1), lower fixed surface riser (35) of diaphragm (34), servo motor (36) are fixed to one side of riser (35), main shaft fixed connection second belt pulley (37) of servo motor (36), connect the belt between first belt pulley (33) and second belt pulley (37), the belt passes ring (3).

4. The controllable temperature detection device for the SLM printer forming chamber as claimed in claim 3, wherein: the alarm device (4) comprises a square plate (41), the square plate (41) is positioned above the square through groove and is fixedly connected with the printer body (1), the upper surface of one end of the rotating plate (22) positioned outside the printer body (1) is fixedly connected with a traction rope (42), the pulling rope (42) upwards penetrates through the square plate (41), one side of the printer body (1) is provided with a sliding groove, a sliding block (43) is connected in the sliding groove in a sliding way, a first spring (44) is fixedly connected between the sliding block (43) and the sliding groove, one side of the sliding block (43) is fixedly connected with a rack (45), one side of the rack (45) is fixedly connected with a connecting plate (46), the traction rope (42) is fixedly connected with the connecting plate (46), one side of the printer body (1) is fixedly connected with a first gear (47) and a second gear (48), the radius of the first gear (47) is larger than that of the second gear (48), the first gear (47) is meshed with the rack (45), the first gear (47) is meshed with the second gear (48), one side of the second gear (48) is fixedly connected with a reel (401), an alarm (402) is fixedly connected to one side of the vertical plate (35), a control line (403) is connected between the alarm (402) and the reel (401).

5. The controllable temperature detection device for the SLM printer forming chamber as claimed in claim 4, wherein: the upper surface fixed connection water tank (5) of printer body (1), one side of water tank (5) is equipped with controlling means (6), store the condensate in water tank (5), one side intercommunication conveyer pipe (51) of water tank (5), one side fixed connection spiral condenser pipe (52) of circular ring (3), conveyer pipe (51) and condenser pipe (52) intercommunication, conveyer pipe (51) pass printer body (1) and circular ring (3).

6. The controllable temperature detection device for the SLM printer forming chamber as claimed in claim 3, wherein: controlling means (6) include control valve (61), one side in water tank (5) is installed in control valve (61), control valve (61) are used for controlling the condensate liquid and get into conveyer pipe (51), sliding connection slide bar (62) on diaphragm (34), fixed connection second spring (63) between slide bar (62) and diaphragm (34), one side fixed connection poker rod (64) of slide bar (62), poker rod (64) cooperate with control valve (61), one side fixed shifting block (65) of the lower extreme of slide bar (62), one side fixed connection round bar (66) of second belt pulley (37), the one-way dwang (67) of excircle rotation of round bar (66).

7. The controllable temperature detection device for the SLM printer forming chamber as claimed in claim 6, wherein: one-way dwang (67) is equipped with the torsional spring with round bar (66) junction, one side of one-way dwang (67) is equipped with first cambered surface (68), one side of stirring piece (65) is equipped with second cambered surface (69).