CN217889787U

CN217889787U - Novel welding furnace

Info

Publication number: CN217889787U
Application number: CN202220080615.XU
Authority: CN
Inventors: 崔会猛; 宋铁生; 李晓亮; 刘月明; 段圣
Original assignee: Chenglian Kaida Technology Co ltd
Current assignee: Chenglian Kaida Technology Co ltd
Priority date: 2022-01-13
Filing date: 2022-01-13
Publication date: 2022-11-25
Anticipated expiration: 2032-01-13

Abstract

The application provides a novel welding furnace, which comprises a furnace body; a heating cavity, a vacuum cavity and a cooling cavity are sequentially arranged in the furnace body along a first direction; a heating area and a reflux area are arranged in the heating cavity along a first direction; the heating zone and the reflux zone are respectively provided with a heating component for heating the workpiece; a conveying assembly is arranged in the vacuum cavity corresponding to the workpiece, and a sealing cover for sealing is arranged at the top of the vacuum cavity; and a cooling assembly is arranged in the cooling cavity and used for cooling the workpiece. According to the technical scheme provided by the embodiment of the application, the vacuum cavity is arranged between the heating cavity and the cooling cavity, so that the void ratio of a product can be effectively reduced, and the conveying assembly can be better butted with the heating cavity and the vacuum cavity; the top of the vacuum cavity is provided with a sealing cover for sealing, when a workpiece enters and exits, the sealing cover can be lifted, the workpiece can automatically advance through the conveying assembly after entering, the process is completely and automatically completed, manual operation is not needed, and the vacuum cavity is safer and more reliable.

Description

Novel welding furnace

Technical Field

The application relates to the technical field of welding, concretely relates to novel welding furnace.

Background

The reflow furnace is also called reflow soldering furnace, which is a device required by SMT process in the electronic technology industry; the reflow furnace process is to realize the soft soldering of mechanical and electrical connection between the soldering end or pin of the surface assembly component and the printed board pad by re-melting the paste soft solder pre-distributed on the printed board pad; the reflow oven is the last key process of the SMT, is a real-time process control, has more complex process change and relates to a plurality of process parameters; however, the traditional machine type has no vacuum area, and the void ratio of the product is higher; therefore, a vacuum area is added in part of reflow soldering furnaces in the market, but the connection between the vacuum area and the traditional soldering furnace still has many problems, so that the vacuum area and the traditional soldering furnace cannot be perfectly fused, and the problem needs to be solved urgently.

Disclosure of Invention

In view of the above-mentioned deficiencies or inadequacies in the prior art, it would be desirable to provide a new welding furnace.

The application provides a novel welding furnace, which comprises a furnace body; a heating cavity, a vacuum cavity and a cooling cavity are sequentially arranged in the furnace body along a first direction; a heating area and a reflux area are arranged in the heating cavity along a first direction; the heating zone and the reflux zone are respectively provided with a heating component for heating the workpiece; a conveying assembly is arranged in the vacuum cavity corresponding to the workpiece, and a sealing cover for sealing is arranged at the top of the vacuum cavity; and a cooling assembly is arranged in the cooling cavity and used for cooling the workpiece.

Further, the heating assembly comprises a heating turbine and a resistance wire; the resistance wire is arranged coaxially with the heating turbine in an annular shape and is positioned outside the heating turbine; the heating turbine is rotatably arranged on the furnace body.

Further, the heating zone comprises a preheating zone and a constant temperature zone; the constant temperature zone is positioned between the preheating zone and the reflux zone; the constant temperature area is provided with four sections; the four sections of constant temperature areas are mutually independent and are respectively provided with the heating assemblies; the preheating zone is provided with three sections; the three preheating zones are mutually independent and are also respectively provided with the heating assembly.

Furthermore, the reflux zone is provided with three sections; the three sections of the reflux areas are mutually independent and are respectively provided with the heating assembly and a first guide plate; the first guide plate is positioned on one side of the heating assembly, which is far away from the bottom of the furnace body; the first guide plate is provided with uniformly distributed heat dissipation holes and a guide pipe connected with the heat dissipation holes; the draft tube is located the first guide plate is kept away from one side of heating element.

Further, the conveying assembly comprises two transmission frames which are parallel to each other; the two transmission frames are fixedly arranged on the furnace body, and a driving frame for driving the workpiece is arranged between the two transmission frames; the driving frame is connected with the transmission frame through a gear shaft.

Further, the driving frame can be slidably mounted on the gear shaft, and the sliding direction is the same as the axial direction of the gear shaft; the gear shaft is also sleeved with a chain wheel; the chain wheel is rotatably arranged on the driving frame and used for driving the chain to convey the workpiece.

Further, the cooling assembly comprises a cooling turbine and a second deflector; the second guide plate is provided with guide holes which are uniformly distributed, and a hollow interlayer is formed between the second guide plate and the furnace body; the cooling turbine is located in the interlayer.

Furthermore, a heat dissipation plate is arranged in the interlayer; the heat dissipation plate is parallel to the second flow guide plate and is positioned between the second flow guide plate and the cooling turbine; a cooling water pipe is also arranged in the heat dissipation plate; the cooling water pipe is coiled in the heat dissipation plate, and a formed plane is parallel to the heat dissipation plate.

Further, the furnace also comprises a furnace cover; the bell articulates on the furnace body, correspond heating chamber and cooling chamber are equipped with respectively heating element and cooling module.

Further, the sealing cover is connected with the furnace cover through a mounting frame; the mounting rack comprises a plurality of sliding rods fixedly mounted on the sealing cover; the furnace cover is provided with matched sliding holes corresponding to the sliding rods; the sliding rods are connected through a supporting frame; the support frame is positioned outside the furnace covers and connected with the furnace covers through a lifting cylinder.

The application has the advantages and positive effects that:

according to the technical scheme, the vacuum cavity is arranged between the heating cavity and the cooling cavity, so that the voidage of a product can be effectively reduced, and the conveying assembly can be better butted with the heating cavity and the vacuum cavity; the top of vacuum cavity is equipped with and is used for sealed closing cap, and when the work piece passed in and out, the closing cap can go up and down, and the work piece accessible conveying assembly was automatic to be advanced after getting into, and this process is whole to be accomplished automatically, need not manual operation, and is safe and reliable more, compares in prior art, and the butt joint of vacuum cavity and heating chamber and cooling chamber is more perfect to the quality of processing is also better.

Drawings

Fig. 1 is a schematic structural diagram of a furnace body of a novel welding furnace provided in an embodiment of the present application;

fig. 2 is a schematic structural diagram of a furnace cover of a novel welding furnace provided in an embodiment of the application;

FIG. 3 is a schematic structural diagram of a heating assembly of the novel welding furnace provided by the embodiment of the application;

FIG. 4 is a schematic structural diagram of a transfer assembly of the novel welding furnace provided by the embodiment of the application;

FIG. 5 is a schematic structural diagram of a cover of the novel welding furnace provided by the embodiment of the application;

fig. 6 is a schematic structural diagram of a cooling assembly of the novel welding furnace provided in the embodiment of the present application.

The text labels in the figures are represented as: 100-furnace body; 110-a heating chamber; 120-a vacuum chamber; 130-a cooling chamber; 200-heating the turbine; 201-a first motor; 210-resistance wire; 220-a first baffle; 221-a flow guide pipe; 300-a transmission frame; 310-a drive frame; 320-gear shaft; 330-a sprocket; 340-a cover; 341-sliding bar; 350-a screw rod; 400-cooling the turbine; 401-a second electric machine; 410-a second baffle; 420-a heat sink plate; 421-a cooling water pipe; 500-furnace cover; 510-lifting cylinder.

Detailed Description

The following detailed description of the present application is given for the purpose of enabling those skilled in the art to better understand the technical solutions of the present application, and the description in this section is only exemplary and explanatory, and should not be taken as limiting the scope of the present application in any way.

Referring to fig. 1-6, the present embodiment provides a novel welding furnace, which includes a furnace body 100; a heating cavity 110, a vacuum cavity 120 and a cooling cavity 130 are sequentially arranged in the furnace body 100 along a first direction; a heating region and a reflux region are arranged in the heating cavity 110 along a first direction; heating components are respectively arranged in the heating zone and the reflux zone and used for heating the workpiece; a conveying assembly is arranged in the vacuum cavity 120 corresponding to the workpiece, and the workpiece enters the vacuum cavity 120 from the heating cavity 110 and is conveyed into the cooling cavity 130 through the conveying assembly; the cooling cavity 130 is provided with a cooling component corresponding to the workpiece for cooling the workpiece.

In a preferred embodiment, the heating assembly includes a heated turbine 200 and a resistance wire 210; the resistance wire 210 is annular, is coaxially mounted with the heating turbine 200, and is positioned outside the heating turbine 200; the heating turbine 200 is rotatably installed on the furnace body 100 for blowing heat generated from the resistance wire 210 into the heating cavity 110.

Preferably, the heating turbine 200 is driven by a first motor 201; the first motor 201 is fixedly installed on the furnace body 100 and located outside the furnace body 100.

Preferably, the heating zone comprises a preheating zone and a constant temperature zone; the constant temperature zone is positioned between the preheating zone and the reflux zone; the constant temperature area is provided with four sections which are mutually independent, and each section is provided with a heating component; the preheating zone is provided with three sections which are mutually independent, and each section is also provided with a heating component.

Preferably, the reflux zone is also provided with three sections, the three sections of reflux zones are mutually independent, and each section is respectively provided with a heating assembly; meanwhile, each section of the reflux area is also provided with a first guide plate 220; the first guide plate 220 is positioned on one side of the heating assembly far away from the bottom of the furnace body 100; the first guide plate 220 is provided with uniformly arranged heat dissipation holes and a flow guide pipe 221 connected with the heat dissipation holes; the flow guide pipe 221 is located on a side of the first flow guide plate 220 away from the heating assembly.

In a preferred embodiment, the transfer assembly includes two driving frames 300 parallel to each other; the two transmission frames 300 are fixedly arranged on the furnace body 100, and a driving frame 310 for driving a workpiece is arranged between the two transmission frames; the driving frame 310 is connected with the transmission frame 300 through a gear shaft 320.

Preferably, two gear shafts 320 are provided, and the two gear shafts 320 are parallel to each other; the driving rack 310 is slidably mounted on the gear shaft 320, and the sliding direction is the same as the axial direction of the gear shaft 320; the two gear shafts 320 are also respectively sleeved with chain wheels 330; the two chain wheels 330 are respectively rotatably connected with the driving frame 310 and are connected with each other through a chain; the chain is provided with a shifting tooth corresponding to the workpiece and used for pushing the workpiece to advance.

Preferably, a screw 350 is further arranged between the two transmission frames 300; two ends of the screw rod 350 are respectively rotatably connected with the transmission frame 300; the driving frame 310 is provided with a matched threaded hole corresponding to the screw rod 350; the driving frame 310 can be driven to slide on the gear shaft 320 by rotating the screw rod 350, so that workpieces with different sizes can be conveyed.

In a preferred embodiment, the cooling assembly includes a desuperheating turbine 400 and a second baffle 410; the second guide plate 410 is provided with guide holes which are uniformly distributed, and a hollow interlayer is formed between the second guide plate and the furnace body 100; the cooling turbine 400 is located in the interlayer and used for blowing cold air to the workpiece through the flow guide hole, so that the workpiece is cooled.

Preferably, the cooling turbine 400 is driven by a second motor 401; the second motor 401 is fixedly installed on the furnace body 100 and located outside the furnace body 100.

Preferably, a heat dissipation plate 420 is further arranged in the interlayer; the heat dissipation plate 420 is parallel to the second flow guide plate 410, is located between the second flow guide plate 410 and the cooling turbine 400, and is internally provided with a cooling water pipe 421; the cooling water pipe 421 is coiled in the heat dissipation plate 420 to form a plane parallel to the heat dissipation plate 420.

Preferably, a water inlet and a water outlet are respectively arranged on the furnace body 100 corresponding to two ends of the cooling water pipe 421; one end of the water inlet and the water outlet are respectively connected with the cooling water pipe 200, and the other end is respectively connected with the water supply assembly.

In a preferred embodiment, the furnace further comprises a furnace cover 500; the furnace cover 500 is hinged to the furnace body 100 and is provided with a heating assembly and a cooling assembly corresponding to the heating chamber 110 and the cooling chamber 130, respectively.

Preferably, a cover 340 capable of ascending and descending is arranged on the furnace cover 500 corresponding to the vacuum chamber 120; the sealing cover 340 is connected with the furnace cover 500 through a mounting frame; the mounting frame comprises a plurality of sliding rods 341 fixedly mounted on the cover 340; the furnace cover 500 is provided with matched slide holes corresponding to the slide rods 341; the sliding rods 341 are connected through a support frame; the support frame is positioned outside the furnace cover 500 and connected with the furnace cover 500 through a lifting cylinder 510.

The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention in other contexts without modification may be viewed as within the scope of the present application.

Claims

1. The novel welding furnace is characterized by comprising a furnace body (100); a heating cavity (110), a vacuum cavity (120) and a cooling cavity (130) are sequentially arranged in the furnace body (100) along a first direction; a heating area and a backflow area are arranged in the heating cavity (110) along a first direction; the heating zone and the reflux zone are respectively provided with a heating component for heating the workpiece; a conveying assembly is arranged in the vacuum cavity (120) corresponding to the workpiece, and a sealing cover (340) for sealing is arranged at the top of the vacuum cavity; and a cooling assembly is arranged in the cooling cavity (130) and used for cooling the workpiece.

2. The new welding furnace as claimed in claim 1, characterized in that said heating assembly comprises a heating turbine (200) and a resistance wire (210); the resistance wire (210) is installed coaxially with the heating turbine in an annular shape and is positioned outside the heating turbine (200); the heating turbine (200) is rotatably mounted on the furnace body (100).

3. The new welding furnace as defined in claim 1, wherein said heating zone comprises a preheating zone and a constant temperature zone; the constant temperature zone is positioned between the preheating zone and the reflux zone; the constant temperature area is provided with four sections; the four sections of constant temperature areas are mutually independent and are respectively provided with the heating assemblies; the preheating zone is provided with three sections; the three preheating zones are mutually independent and are also respectively provided with the heating assembly.

4. The new furnace as set forth in claim 1, wherein said reflow zone is provided in three total sections; the three sections of the reflux zones are mutually independent and are respectively provided with the heating assembly and a first guide plate (220); the first guide plate (220) is positioned on one side of the heating assembly away from the bottom of the furnace body (100); the first guide plate (220) is provided with uniformly distributed heat dissipation holes and a guide pipe (221) connected with the heat dissipation holes; the guide pipe (221) is positioned on one side of the first guide plate (220) far away from the heating assembly.

5. The new welding furnace according to claim 1, characterized in that said transfer assembly comprises two transmission frames (300) parallel to each other; the two transmission frames (300) are fixedly arranged on the furnace body (100), and a driving frame (310) for driving the workpiece is arranged between the two transmission frames; the driving frame (310) is connected with the transmission frame (300) through a gear shaft (320).

6. The new welding furnace as claimed in claim 5, characterized in that said driving rack (310) is slidably mounted on said gear shaft (320) in the same direction as the axis direction of said gear shaft (320); the gear shaft (320) is also sleeved with a chain wheel (330); the chain wheel (330) is rotatably arranged on the driving frame (310) and is used for driving a chain to convey the workpiece.

7. The new welding furnace as claimed in claim 1, characterized in that said cooling assembly comprises a cooling turbine (400) and a second deflector (410); the second guide plate (410) is provided with guide holes which are uniformly distributed, and a hollow interlayer is formed between the second guide plate and the furnace body (100); the cooling turbine (400) is located within the interlayer.

8. The new welding furnace as defined in claim 7, further characterized in that a heat dissipation plate (420) is provided in said interlayer; the heat dissipation plate (420) is parallel to the second guide plate (410) and is positioned between the second guide plate (410) and the cooling turbine (400); a cooling water pipe (421) is also arranged in the heat dissipation plate (420); the cooling water pipe (421) is coiled in the heat dissipation plate (420), and a formed plane is parallel to the heat dissipation plate (420).

9. The new welding furnace as claimed in claim 1, further comprising a furnace cover (500); the furnace cover (500) is hinged on the furnace body (100), and the heating assembly and the cooling assembly are respectively arranged corresponding to the heating cavity (110) and the cooling cavity (130).

10. The new welding furnace as claimed in claim 9, characterized in that said cover (340) is connected to said furnace lid (500) by means of a mounting frame; the mounting frame comprises a plurality of sliding rods (341) fixedly mounted on the cover (340); a matched sliding hole is formed in the furnace cover (500) corresponding to the sliding rod (341); the sliding rods (341) are connected through a support frame; the support frame is positioned outside the furnace cover (500) and connected with the furnace cover (500) through a lifting cylinder (510).