3D printing metal mold base body preheating device

Abstract

The utility model provides a 3D printing metal mold base body preheating device which comprises a preheating box and an air pump, a protective door is hinged to the middle of the outer surface of the preheating box, a rotating disc is rotationally connected to the middle of the interior of the preheating box, a hollow column is fixedly installed in the middle of the top end of the rotating disc, and the top end and the bottom end of the rotating disc are provided with separation taking and placing mechanisms. An air pump is fixedly installed in the middle of the top end of the preheating box, and in-box cooling mechanisms are arranged around the interior of the preheating box. According to the preheating device for the 3D printing metal mold base body, through the separated taking and placing mechanism, multiple molds can be conveniently taken and placed, mutual interference is avoided, and the operation convenience and efficiency are improved; and the temperature in the preheating box can be quickly and uniformly reduced through the cooling mechanism in the box, so that production interruption or delay caused by waiting for natural cooling of the mold is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of mold preheating, and more specifically to a 3D printing metal mold base preheating device. Background Art

[0002] The 3D printing process needs to be carried out under high temperature and high pressure. At this time, the metal mold can provide better stability and high temperature and pressure resistance, ensuring the accuracy and stability of the printing process. The temperature of the metal mold is kept within a certain range, which can improve the efficiency of the mold. Therefore, the mold needs to be preheated; the existing methods for preheating the mold include preheating with a handheld flame spray gun and preheating in a preheater. The upper and lower molds cannot be preheated at the same time, and only a single mold can be preheated. Therefore, the preheating efficiency is low.

[0003] In view of the above problems, with regard to the technical problem of low preheating efficiency of metal molds in the existing preheating method, after a lot of searches, a mold preheating device with patent number CN219028669U was found, which relates to the field of mold preheating and solves the problem that the existing mold preheater cannot preheat the upper and lower molds at the same time and can only preheat a single mold, resulting in low preheating efficiency. The device comprises a preheating box body with an opening, a preheating rack is slidably provided in the preheating box body, a preheating assembly is provided in the preheating box body, the preheating rack comprises a sliding assembly, a first placement plate is provided on the sliding assembly, a second placement plate is provided below the first placement plate, the first placement plate and the second placement plate are hollow plates, and a push plate is provided on the first placement plate; in the utility model, the first placement plate and the second placement plate can place two molds, so the entire mold preheating device can preheat the upper and lower molds at the same time, breaking the limitation of only preheating a single mold and improving the preheating efficiency; however, the technical solution provided by the patent has the following problems:

[0004] (1) The upper mold is placed on the first placement plate, and the lower mold is placed between the first placement plate and the second placement plate. Although the two molds can be separated and placed in the box to be heated at the same time, when the molds need to be taken or placed separately, they are easily interfered with each other, causing inconvenience;

[0005] (2) After the mold is preheated, if the preheating temperature is high, it is necessary to wait for it to cool down before it can be used subsequently. Waiting for the mold to cool down will cause the production process to be interrupted or delayed, thereby affecting the overall production efficiency.

[0006] The utility model can conveniently and quickly classify, take and place different molds; and can evenly cool multiple molds for subsequent use. Utility Model Content

[0007] The utility model aims to solve the technical problems raised by the above-mentioned background technology and provides a 3D printing metal mold base preheating device. Through the separation pick-up and placement mechanism, multiple molds can be conveniently taken and placed without interfering with each other, thereby improving the convenience and efficiency of operation; through the in-box cooling mechanism, the temperature in the preheating box can be quickly and evenly reduced, avoiding production interruptions or delays caused by waiting for the mold to cool down naturally.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a 3D printing metal mold base preheating device, comprising: a preheating box and an air pump, a protective door is hinged in the middle of the outer surface of the preheating box, a turntable is rotatably connected in the middle of the interior of the preheating box, a hollow column is fixed in the middle of the top of the turntable, a partitioning and placing mechanism is arranged at the top and bottom of the turntable, an air pump is fixed in the middle of the top of the preheating box, and an in-box cooling mechanism is arranged around the interior of the preheating box.

[0009] A further preferred solution: the partitioning and placing mechanism comprises: a hollow partition frame, a partition net, a driven gear, a driving gear and a rotating handle;

[0010] A number of hollow partition frames are provided and are fixedly mounted around the hollow column respectively. A partition net is fixedly mounted in the middle of the inner part of the number of hollow partition frames. A driven gear is fixedly mounted in the middle of the bottom end of the turntable through a connecting rod. A driving gear is provided on the right side of the inner bottom end of the preheating box. A turning handle is fixedly mounted on the bottom end of the driving gear through a connecting rod that penetrates the bottom of the preheating box.

[0011] A further preferred solution: the cooling mechanism in the box includes: an air guide pipe, a bearing seat, a through hole and an air outlet;

[0012] The air guide pipe is fixedly installed at the air outlet end of the air pump, and the bottom end of the air guide pipe passes through the inner upper end of the hollow column. A through hole is opened between the hollow column and several hollow partition frames, and air outlet nozzles are arranged around the outer sides and backs of the several hollow partition frames.

[0013] A further preferred solution is that a plurality of placement grooves are provided around the top of the turntable in a circular array, and the plurality of placement grooves are respectively located between a plurality of hollow partition frames.

[0014] A further preferred solution is that the bottom end of the air guide tube is rotatably connected to the hollow column via a bearing seat, and the hollow column is connected to the interior of a plurality of hollow partition frames via through holes.

[0015] A further preferred solution is that the protective door is arranged in an arc shape, the protective door is located outside the plurality of hollow partition frames, and the width of the protective door is greater than the spacing between the plurality of hollow partition frames.

[0016] A further preferred solution is that electric heating tubes are arranged around the inner wall of the preheating box, and the electric heating tubes are located around the turntable.

[0017] Beneficial effects:

[0018] 1. By setting up a separation and placement mechanism, when multiple molds need to be placed, the protective door can be opened first; then the handle can be turned to allow the active gear to drive the driven gear to rotate; then the turntable can be rotated to rotate several hollow partition frames; finally, the placement slots between several hollow partition frames pass through the corresponding area of ​​the protective door; so that the molds at this position can be placed; it is convenient to take and place molds without interfering with each other, which can improve the convenience and efficiency of operation and make the management of molds more flexible and convenient;

[0019] 2. By setting up a cooling mechanism inside the box, when the temperature inside the preheating box needs to be lowered, the protective door can be opened first; then the air pump is operated to supply air to the air duct, so that the outside air can enter the hollow column through the air duct; then the air enters several hollow partition frames from the through holes around the hollow column; then the air is sprayed out from the air outlets around the outside and back of several hollow partition frames, and the air is blown around multiple molds at the same time; so that the temperature can be lowered quickly and evenly, and the production interruption or delay caused by waiting for the mold to cool down naturally can be avoided, thereby improving the overall production efficiency;

[0020] 3. In summary, this 3D printing metal mold base preheating device can conveniently pick up and place multiple molds without interfering with each other through the separated pick-and-place mechanism, thereby improving the convenience and efficiency of operation; through the in-box cooling mechanism, the temperature in the preheating box can be quickly and evenly reduced, avoiding production interruptions or delays caused by waiting for the mold to cool down naturally. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0022] Figure 2 It is a schematic diagram of the cross-sectional structure of the preheating box of the utility model.

[0023] Figure 3 It is a structural schematic diagram of the turntable of the utility model.

[0024] Figure 4 For the utility model Figure 2 Enlarged view of point A in .

[0025] Figure 1-4 In: 1. preheating box; 101. protective door; 2. turntable; 201. placement slot; 3. hollow column; 4. hollow partition frame; 5. partition net; 6. driven gear; 7. driving gear; 8. turning handle; 9. air pump; 10. air guide tube; 11. bearing seat; 12. through hole; 13. air outlet nozzle; 14. electric heating tube. DETAILED DESCRIPTION

[0026] The following will be combined with the attached embodiment of the present utility model Figure 1-Figure 4 , clearly and completely describe the technical solutions in the embodiments of the utility model.

[0027] See also Figure 1-4 In an embodiment of the utility model, a 3D printing metal mold base preheating device includes: a preheating box 1 for accommodating a metal mold base and performing a preheating treatment; an air pump 9 is fixedly installed at the top of the preheating box 1; a protective door 101 is a door hinged in the middle of the outer surface of the preheating box 1, which is used to facilitate operators to put the mold base into or take out the preheating box 1; a turntable 2 is a component rotatably connected in the middle of the preheating box 1, which is used to place the mold base, and the mold base is evenly heated by rotation; a hollow column 3 is fixedly installed in the middle of the top of the turntable 2; a separation and placement mechanism is arranged at the top and bottom of the turntable 2, which is used to separate multiple mold bases; a cooling mechanism in the box is a mechanism arranged around the preheating box 1, which can cool the box.

[0028] In the embodiment of the utility model, the partitioning and placing mechanism includes: a hollow partition frame 4, a partition net 5, a driven gear 6, a driving gear 7 and a turning handle 8; the hollow partition frame 4 is fixedly mounted around the hollow column 3, and is used to isolate multiple molds to avoid mutual interference; the partition net 5 is arranged inside the hollow partition frame 4 to facilitate hot air circulation to ensure that the heating of the mold is not affected; the driven gear 6 is a gear connected to the bottom end of the turntable 2; the driving gear 7 is a gear arranged on the right side of the bottom end of the preheating box 1, and is meshed with the driven gear 6; the turning handle 8 is fixedly mounted on the handle at the bottom of the driving gear 7, and is used to operate the rotation of the driving gear 7; thereby allowing the driven gear 6 and the turntable 2 to rotate to achieve adjustment of the mold position.

[0029] In the embodiment of the utility model, the cooling mechanism in the box includes: an air duct 10, a bearing seat 11, a through hole 12 and an air outlet nozzle 13; the air duct 10 is fixedly installed at the air outlet end of the air pump 9, and the bottom end passes through the inner upper end of the hollow column 3. The function of the air duct 10 is to introduce outside air into the hollow column 3; the bearing seat 11 is used to support and fix the hollow column 3, so that when the hollow column 3 rotates with the turntable 2, the air duct 10 is still connected thereto; the through hole 12 is located between the hollow column and a plurality of hollow partition frames, and the function of the through hole 12 is to allow outside air to enter the plurality of hollow partition frames 4 from the hollow column 3; the air outlet nozzle 13 is arranged around the outer sides and the back of the plurality of hollow partition frames 4, and the air outlet nozzle 13 sprays air to cool down the area around the mold, thereby achieving a rapid and uniform cooling effect, which can effectively solve the problem of needing to cool down the mold after preheating.

[0030] In the embodiment of the utility model, the placement grooves 201 are located around the top of the turntable 2 and are opened in a ring array shape. The function of the placement grooves 201 is to place the mold.

[0031] In the embodiment of the utility model, the bottom end of the air guide tube 10 is rotatably connected to the hollow column 3 via a bearing seat 11, and the bearing seat 11 serves to connect and support the bottom end of the air guide tube 10; the hollow column 3 is connected to the interior of several hollow partition frames 4 via a through hole 12, which means that an air flow channel is formed between the hollow column 3 and the hollow partition frame 4 through the through hole 12.

[0032] In the embodiment of the utility model, the protective door 101 is arranged in an arc shape and is located on the outside of the hollow partition frame 4. This design can effectively cover and protect the hollow partition frame 4 and its internal mold; the width of the protective door 101 is greater than the spacing between the hollow partition frames 4, ensuring that the opening of the hollow partition frame 4 can be completely blocked in the closed state; the main function of the protective door 101 is to prevent the operator from contacting the running mechanical equipment or heat source for safety reasons, so as to avoid accidental injuries.

[0033] In the embodiment of the utility model, the electric heating tube 14 is arranged around the inner wall of the preheating box 1, forming a surrounding layout. This design can ensure uniform heating of the internal space of the preheating box 1 and avoid local excessive temperature or low temperature. The electric heating tube 14 is located around the turntable 2, which means that the mold on the turntable 2 will be heated by the surrounding electric heating tubes during rotation, thereby achieving uniform preheating treatment of the workpiece.

[0034] Working principle: First, when it is necessary to take and place multiple molds, the protective door 101 can be opened first; then the handle 8 can be turned to allow the active gear 7 to drive the driven gear 6 to rotate; then the turntable 2 is rotated to rotate the multiple hollow partition frames 4; finally, the placement slots 201 between the multiple hollow partition frames 4 are passed through the corresponding area of ​​the protective door 101; so that the molds at this position can be taken and placed; when it is necessary to cool down the preheating box 1, the protective door 101 can be opened first; then the air pump 9 is operated to supply air to the air duct 10, so that the outside air can enter the hollow column 3 through the air duct 10; then it enters the multiple hollow partition frames 4 from the through holes 12 around the hollow column 3; then it is sprayed from the air outlet nozzles 13 around the outside and back of the multiple hollow partition frames 4, and blows air around multiple molds at the same time; so that the temperature can be quickly and evenly reduced, which can avoid production interruptions or delays caused by waiting for the mold to cool down naturally, and improve the overall production efficiency.

Claims

1. A 3D printing metal mold substrate preheating device, comprising: A preheating box (1) and an air pump (9), characterized in that: a protective door (101) is hinged in the middle of the outer surface of the preheating box (1), a turntable (2) is rotatably connected in the middle of the interior of the preheating box (1), a hollow column (3) is fixedly installed in the middle of the top of the turntable (2), a partitioning and placing mechanism is arranged at the top and bottom of the turntable (2), an air pump (9) is fixedly installed in the middle of the top of the preheating box (1), and an in-box cooling mechanism is arranged around the interior of the preheating box (1).

2. A 3D printing metal mold substrate preheating device according to claim 1, characterized in that: The partitioning and placing mechanism comprises: a hollow partition frame (4), a partition net (5), a driven gear (6), a driving gear (7) and a rotating handle (8); A plurality of hollow partition frames (4) are provided and are respectively fixedly mounted on the four sides of the hollow column (3); a partition net (5) is fixedly mounted in the middle of the interior of the plurality of hollow partition frames (4); a driven gear (6) is fixedly mounted in the middle of the bottom end of the turntable (2) via a connecting rod; a driving gear (7) is provided on the right side of the bottom end of the preheating box (1); a rotating handle (8) is fixedly mounted at the bottom end of the driving gear (7) via a connecting rod that penetrates the bottom of the preheating box (1).

3. A 3D printing metal mold substrate preheating device according to claim 2, characterized in that: The in-box cooling mechanism comprises: an air guide pipe (10), a bearing seat (11), a through hole (12) and an air outlet nozzle (13); The air guide tube (10) is fixedly mounted on the air outlet end of the air pump (9), the bottom end of the air guide tube (10) penetrates to the inner upper end of the hollow column (3), a through hole (12) is provided between the hollow column (3) and the plurality of hollow partition frames (4), and air outlet nozzles (13) are provided around the outer sides and the back sides of the plurality of hollow partition frames (4).

4. A 3D printing metal mold substrate preheating device according to claim 2, characterized in that: A plurality of placement grooves (201) are provided around the top of the rotating disk (2) in a circular array, and the plurality of placement grooves (201) are respectively located between a plurality of hollow partition frames (4).

5. A 3D printing metal mold substrate preheating device according to claim 3, characterized in that: The bottom end of the air guide tube (10) is rotatably connected to the hollow column (3) via a bearing seat (11), and the hollow column (3) is connected to the interior of a plurality of hollow partition frames (4) via a through hole (12).

6. A 3D printing metal mold substrate preheating device according to claim 2, characterized in that: The protective door (101) is arranged in an arc shape, and is located outside the plurality of hollow partition frames (4). The width of the protective door (101) is greater than the spacing between the plurality of hollow partition frames (4).

7. A 3D printing metal mold substrate preheating device according to claim 1, characterized in that: The inner wall of the preheating box (1) is surrounded by electric heating tubes (14), and the electric heating tubes (14) are located around the rotating disk (2).

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