CN213363326U

CN213363326U - A conveyor of tunnel furnace for circuit board solidification

Info

Publication number: CN213363326U
Application number: CN202022248263.8U
Authority: CN
Inventors: 兰胜有; 王彬; 夏瑜; 钟方毅; 刘春红
Original assignee: Quzhou Chuante Electronic Technology Co ltd
Current assignee: Quzhou Chuante Electronic Technology Co ltd
Priority date: 2020-10-12
Filing date: 2020-10-12
Publication date: 2021-06-04
Anticipated expiration: 2030-10-12

Abstract

The technical scheme of the utility model is realized like this: a conveying device of a tunnel furnace for curing a circuit board comprises a shell and a conveying device arranged in the shell, wherein a feeding hole is formed in the left side of the shell, and a discharging hole is formed in the right side of the shell; the conveying device comprises two first conveying rollers, a first motor for controlling the first conveying rollers to rotate is arranged on a first conveying support, a first conveying belt is sleeved on the first conveying rollers, a plurality of fixing units are arranged on the conveying belt, each fixing unit comprises two supporting units arranged in parallel, each supporting unit comprises a fiber rod and a silica gel block fixed on the fiber rod, the fiber rod is obliquely arranged towards the direction of a feeding hole, and a dust collection assembly is further arranged on the shell; the utility model has the advantages that: the conveying circuit board is stable during drying, and the circuit board is convenient to mount.

Description

A conveyor of tunnel furnace for circuit board solidification

Technical Field

The utility model belongs to the technical field of circuit board drying equipment technique and specifically relates to a conveyor of tunnel furnace for circuit board solidification.

Background

The application of the printed circuit board is more and more extensive, the demand is more and more large, in the course of its processing, need to bake it to achieve the goal of drying, and the baking of the printed circuit board is mostly carried on through the tunnel oven; in the drying process of the circuit board, firstly, the ink on the circuit board is semi-cured through an ultraviolet semi-curing device, and then, the aim of complete curing is achieved through drying and drying of a tunnel furnace.

The existing tunnel furnace generally places a circuit board to be dried on a conveying device in the tunnel furnace for conveying, and then dries through a heating unit in the tunnel furnace to achieve the purpose of curing character ink on the circuit board; the circuit board is usually fixed by adopting a clamping mode when the circuit board is conveyed in the existing tunnel furnace, and then the fixed circuit board is controlled to move and dry in the tunnel furnace, so that the mode is troublesome, the circuit board needs to be manually clamped on a clamp, time and labor are wasted, and the clamp can possibly abrade the circuit board; meanwhile, when the existing conveying device is used for conveying a circuit board to be dried, dust on the circuit board cannot be treated, the cleanness of the circuit board cannot be guaranteed during drying, and the drying quality of the circuit board is affected.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a conveyor for tunnel furnace of circuit board solidification carries conveniently, saves artificial installation.

The technical scheme of the utility model is realized like this: a conveyor of a tunnel furnace for circuit board solidification which characterized in that: the conveying device is arranged in the shell, a feed inlet is formed in the left side of the shell, and a discharge outlet is formed in the right side of the shell; the conveying device comprises two first conveying rollers which are respectively positioned at openings at two ends of a shell, each first conveying roller is fixed in the shell through a first conveying support, a first motor used for controlling the first conveying rollers to rotate is arranged on each first conveying support, the output end of each first motor is fixedly connected with the first conveying rollers, a first conveying belt is sleeved on each first conveying roller and is in transmission connection with the first conveying rollers, a plurality of fixing units used for fixing a circuit board are uniformly arranged on the conveying belts at intervals, each fixing unit comprises two supporting units arranged on the conveying belts in parallel, each supporting unit comprises two silica gel blocks and two fiber rods, one ends of the two fiber rods are fixed on the first conveying belt, the silica gel blocks are fixed at one ends of limiting rods far away from the first conveying belts, and the silica gel blocks are connected with the two fiber rods, the fiber rod is obliquely arranged towards the direction of the feed inlet; the utility model discloses a dust collection device, including casing, inlet scoop, aspiration channel, inlet scoop, dust collection component, fan, aspiration channel and aspiration cover communicate in proper order, the fan is fixed on the casing, the aspiration channel is fixed on the fan, the end of induced drafting of aspiration cover is towards inlet scoop department, one side of aspiration cover is fixed on the casing.

Preferably: conveying device's both ends all are provided with fortune material mechanism about, fortune material mechanism passes feed inlet and discharge gate to the fortune material mechanism of conveying device left end is the example: one end of the material conveying mechanism is positioned in the shell, and the other end of the material conveying mechanism penetrates through the feeding hole to the outside of the shell; the material transporting mechanism comprises a second conveying support, a second motor arranged on the second conveying support and two second conveying rollers arranged on the second conveying support and controlled by the second motor, four second conveying belts are arranged on the two second conveying rollers, the second conveying belts are parallel to each other and arranged at intervals, and gaps between the second conveying belts can be penetrated by the supporting units.

Preferably: the feeding port is further provided with a guide mechanism, the guide mechanism is located on the left side of the conveying mechanism and comprises a third conveying support and a plurality of rotating shafts, the rotating shafts are arranged on the third conveying support at equal intervals, the rotating shafts are arranged in parallel, the rotating shafts and the second conveying rollers are located at the same height, third motors, the number of which is matched with the rotating shafts, are arranged on the third conveying support, each rotating shaft corresponds to one third motor and is fixedly connected with the third motor and is controlled to rotate by the third motor, a plurality of conveying discs are arranged on each rotating shaft, and the conveying discs are evenly arranged on the conveying rollers.

Preferably: the conveying disc comprises a blank body, an elastic layer arranged outside the blank body and an activated carbon adsorption layer arranged outside the elastic layer, and dust absorption holes are formed in the surface of the activated carbon adsorption layer; be provided with damper between body and the axis of rotation, damper includes rubber ring, damper plate and the damping spring who sets gradually from axis of rotation to body direction, the damper plate passes through rubber ring bonding to be fixed in the axis of rotation, damping spring's both ends respectively with damper plate and body fixed connection.

Preferably: install on the aspiration channel and store up dirty pipe, store up dirty pipe and divide into about the aspiration channel two sections, it is located between the aspiration channel of both sides to store up dirty pipe, it adopts threaded connection with the aspiration channel to store up dirty pipe, it is provided with the external screw thread to store up dirty pipe one end, the other end is provided with the internal thread, it is provided with internal and external screw thread to correspond with the junction of storing up dirty pipe on the aspiration channel, it has the filter screen to store up dirty intraductal the fixed twisting ring that has on the dirty pipe outer wall of storage.

The utility model has the advantages that: (1) the circuit board is supported by the two supporting units arranged on the first conveying belt, the stability of conveying of the circuit board is guaranteed compared with the prior mode that a clamp is adopted to fix the circuit board, the circuit board depends on the silica gel block through arrangement of the silica gel block, the influence on quality caused by abrasion of the circuit board is avoided, meanwhile, the circuit board is prevented from sliding in the conveying process, and compared with the prior mode that the clamp is adopted, the circuit board is convenient to fix and is not easy to abrade.

(2) Through the setting of fortune material mechanism, need not artifically place the support element with the circuit board one by one on, through fortune material mechanism and conveyor's cooperation with the circuit board from the outside conveyor of casing, save artifically, it is convenient to carry, reduces the hand contact, avoids the multicontact of circuit board to lead to wearing and tearing, guarantees the quality of circuit board.

(3) Through the setting of dust absorption subassembly, before the circuit board is dried, drive at feed inlet department formation negative pressure through the fan, the dust is along with the output discharge of suction hood from the fan through the aspiration channel, adsorbs the dust on the circuit board, avoids the dust to enter into the solidification that influences printing ink in the printing ink, guarantees the quality of circuit board simultaneously.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a material conveying mechanism at a material inlet according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a material conveying mechanism at a material inlet according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of a transfer plate in an embodiment of the present invention;

FIG. 5 is a schematic view of a dust collection assembly according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of a sewage storage pipe according to an embodiment of the present invention;

FIG. 7 is a cross-sectional view taken along line A-A of FIG. 6;

the examples in the figure are: 1. the device comprises a shell, 101, a low-temperature zone, 102, a drying zone, 103, a high-temperature zone, 104, a feed inlet, 105, a discharge port, 2, a conveying device, 21, a first conveying roller, 22, a first conveying bracket, 23, a first motor, 24, a first conveying belt, 25, a silica gel block, 26, a fiber rod, 3, a material conveying mechanism, 31, a second conveying bracket, 32, a second motor, 33, a second conveying roller, 34, a second conveying belt, 4, a guide mechanism, 41, a third conveying bracket, 42, a rotating shaft, 43, a third motor, 44, a conveying disc, 441, a blank, 442, an elastic layer, 443, an activated carbon adsorption layer, 444, a rubber ring, 445, a damping plate, 446, a damping spring, 5, a dust suction assembly, 51, a fan, 52, an air suction pipe, 53, an air suction cover, 54, a dirt storage pipe, 541, an internal thread, 542, an external thread, 543, a filter screen, 544 and a screwing ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example 1

As shown in fig. 1 to 4, the utility model discloses a conveying device of a tunnel furnace for curing a circuit board, which comprises a shell 1 and a conveying device 2 arranged in the shell 1, wherein the left side of the shell 1 is provided with a feed inlet 104, and the right side is provided with a discharge outlet 105; the conveying device 2 comprises two first conveying rollers 21 respectively positioned at openings at two ends of a shell 1, each first conveying roller 21 is fixed inside the shell 1 through a first conveying support 22, the first conveying rollers 21 are rotatably installed on the first conveying supports 22, the first conveying supports 22 are welded and fixed with the bottom wall of the shell 1, a first motor 23 for controlling the first conveying rollers 21 to rotate is fixed on the first conveying supports 22 through screws, the output end of the first motor 23 is fixedly connected with the first conveying rollers 21, a first conveying belt 24 is sleeved on the first conveying rollers 21, the first conveying belt 24 is in transmission connection with the first conveying rollers 21, the first conveying rollers 21 rotate to drive the first conveying belt 24 to move, the first conveying rollers 21 rotate clockwise, and a plurality of fixing units for fixing a circuit board are uniformly arranged on the conveying belts at intervals, each fixing unit comprises two supporting units which are arranged on the conveying belt in parallel, each supporting unit comprises two silica gel blocks 25 and two fiber rods 26, each fiber rod 26 is divided into two parts, one end of each fiber rod 26 is fixed on the first conveying belt 24, each silica gel block 25 is fixed at one end, far away from the first conveying belt 24, of the limiting rod, each silica gel block 25 is connected with the two fiber rods 26, one ends of the two fiber rods 26 are wrapped and bonded and fixed by the silica gel blocks 25, and the fiber rods 26 are obliquely arranged towards the direction of the feeding hole 104; feed inlet 104 department of casing 1 still is provided with the dust absorption subassembly 5 that is used for clearing up the dust on the circuit board, dust absorption subassembly 5 includes fan 51, aspiration channel 52 and suction hood 53, fan 51, aspiration channel 52 and suction hood 53 communicate in proper order, fan 51 is fixed on casing 1, aspiration channel 52 is fixed on fan 51, suction hood 53 induced draft end towards feed inlet 104 department, suction hood 53 is close to one side bonding of casing 1 and fixes on casing 1, the one end of aspiration channel communicates with the input of fan, the other end and suction hood intercommunication.

According to the technical scheme, the first conveying roller is driven to rotate through the first motor, so that the first conveying belt is driven to transport, when the circuit board printed with printing ink is conveyed, the circuit board is prevented from being arranged on the limiting rod, the limiting rod is obliquely arranged to support the circuit board, the circuit board is prevented from collapsing in the conveying process, the circuit board is supported through the two supporting units to ensure the stability of the conveying of the circuit board, the circuit board depends on the silica gel block through the arrangement of the silica gel block, the influence on the quality caused by the abrasion of the circuit board is avoided, meanwhile, the circuit board is prevented from sliding in the conveying process, and compared with the prior mode of adopting a clamp, the circuit board is convenient to fix and is not easy; meanwhile, through the arrangement of the dust collection assembly, before the circuit board is dried, negative pressure is formed at the position of the feeding port through the driving of the fan, dust is discharged from the output end of the fan along with the air suction cover through the air suction pipe, the dust on the circuit board is adsorbed, the dust is prevented from entering the ink to influence the solidification of the ink, and meanwhile, the quality of the circuit board is guaranteed.

In this embodiment, the left and right ends of the conveying device 2 are provided with the material transporting mechanisms 3, and the material transporting mechanisms pass through the material inlet 104 and the material outlet 105, taking the material transporting mechanism 3 at the left end of the conveying device 2 as an example: one end of the material conveying mechanism 3 is positioned inside the shell 1, and the other end of the material conveying mechanism penetrates through the feeding hole 104 to the outside of the shell 1; the material transporting mechanism 3 comprises a second conveying support 31, a second motor 32 installed on the second conveying support 31, and two second conveying rollers 33 installed on the second conveying support 31 and controlled by the second motor 32, one end of the second conveying support 31 is located inside the shell 1, the other end of the second conveying support 31 is located outside the shell 1, four second conveying belts 34 are arranged on the two second conveying rollers 33, the second conveying belts 34 are parallel to each other and arranged at intervals, gaps between the second conveying belts can be passed by the supporting units, the second motor 32 drives the second conveying rollers 33 to rotate clockwise, and the second conveying rollers 33 drive the four second conveying belts 34 to move.

Through the technical scheme: the circuit board is placed on a second conveying belt through the arrangement of the material conveying mechanism, a second motor drives the second conveying belt to rotate so as to drive the second conveying belt to convey, the circuit board is conveyed by the second conveying belt to enter the shell from the outside of the shell through a feed port, the conveying device keeps working, a supporting unit on the first conveying belt upwards rotates at the feed port, the second conveying belt drives the circuit board to be conveyed above the supporting unit, the supporting unit upwards rotates to drive the circuit board to the first conveying belt, the circuit board enters the conveying mechanism from the material conveying mechanism to be conveyed and dried, after drying, the circuit board enters the right end of the conveying device, the supporting unit downwards rotates, the circuit board is prevented by the material conveying mechanism and is conveyed out of the shell through the second conveying belt, and the conveying device continues conveying; through the setting of fortune material mechanism, need not artifically place the support element with the circuit board one by one on, through fortune material mechanism and conveyor's cooperation with circuit board automatic transportation to conveyor, save artifically, it is convenient to carry, reduces the manual contact, avoids the multicontact of circuit board to lead to wearing and tearing, guarantees the quality of circuit board.

In this embodiment, the feed inlet 104 is further provided with a guide mechanism 4, the guide mechanism 4 is located on the left side of the material conveying mechanism 3, the guide mechanism 4 includes a third conveying support 41 and four rotating shafts 42 evenly spaced on the third conveying support 41, the rotating shafts 42 are arranged in parallel, the rotating shafts 42 and the second conveying rollers 33 are located at the same height, the third conveying support 41 is provided with third motors 43 whose number is matched with that of the rotating shafts 42, each rotating shaft 42 is correspondingly and fixedly connected with one third motor 43 and is controlled to rotate by the third motor 43, the rotating shafts 42 rotate clockwise, the output power of each third motor 43 is the same, each rotating shaft 42 is provided with five conveying discs 44, the conveying discs 44 are evenly arranged on the conveying rollers, and the conveying discs 44 are fixed on the rotating shafts 42.

According to the technical scheme, the circuit board is placed on the conveying disc of the guide mechanism through the arrangement of the guide mechanism, the third motor drives the rotating shaft to rotate, and the rotating disc rotates along with the rotating shaft to drive the circuit board to convey to the conveying mechanism; because of the setting of feed inlet, the hot-air of casing portion can partly run out from the feed inlet, consequently fortune material mechanism department probably temperature is higher, and unsuitable staff's work can solve this problem through guiding mechanism's setting, and the staff can place the circuit board on guiding mechanism in a distance, carries the circuit board to fortune material mechanism through guiding mechanism on, guarantees that the staff scalds, guarantees good operational environment.

In this embodiment, the conveying tray 44 includes a blank 441, an elastic layer 442 disposed outside the blank 441, and an activated carbon adsorption layer 443 disposed outside the elastic layer 442, wherein the blank 441 is annular, and dust suction holes are opened on the surface of the activated carbon adsorption layer 443; a damping mechanism is arranged between the blank body 441 and the rotating shaft 42, the damping mechanism comprises a rubber ring 444, a damping plate 445 and a damping spring 446 which are sequentially arranged from the rotating shaft 42 to the blank body 441, the damping plate 445 is fixedly bonded on the rotating shaft 42 through the rubber ring, and two ends of the damping spring 446 are respectively fixedly connected with the damping plate 445 and the blank body 441.

Through above-mentioned technical scheme, through setting the transfer dish to multiple structure, can adsorb the dust on circuit board surface through the setting of active carbon adsorption layer, guarantee the cleanness of circuit board, the dust flies upward when avoiding drying and gets into influence circuit board quality in the printing ink, through elastic layer, damper plate, rubber ring and damping spring's setting, provides the buffering when the circuit board is transferred to the power transmission, vibrations when reducing the circuit board are transferred to, avoid the circuit board shake, guarantee the stability of transfer circuit board.

Example 2

As shown in fig. 5 to 7, the present embodiment is different from the above embodiments in that: in this embodiment, install on the aspiration channel 52 and store up dirty pipe 54, store up dirty pipe 54 and divide into aspiration channel 52 about two sections, it is located between the aspiration channel 52 of both sides to store up dirty pipe 54, it adopts threaded connection with aspiration channel 52 to store up dirty pipe 54, it is provided with external screw thread 542, the other end and is provided with internal thread 541 to store up dirty pipe 54 one end, correspond with the junction of storing up dirty pipe 54 on the aspiration channel 52 and be provided with internal and external screw thread, it has filter screen 543 to store up dirty pipe 54 internal fixation, it twists ring 544 to be fixed with on the outer wall of storing up dirty pipe 54, conveniently twists the dirty pipe of storing up. Is convenient to be disassembled and assembled.

Through the technical scheme, the dust adsorbed by the dust collection assembly is blocked by the filter screen through the arrangement of the dirt storage pipe, so that the dust is accumulated in the dirt storage pipe, the dust is prevented from flying to the outside, and the good working environment is ensured; when needs are cleared up the dust that stores up in the dirty pipe, only need twist and move the twisting ring and drive the dirty pipe rotation of storing up, will store up dirty pipe take off clean then install again can, can break off the left end that the cover and the left end of aspiration channel were dismantled simultaneously to the connection of cover and casing of induced drafting when not dismantling well, make things convenient for the unscrewing of screw thread.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A conveyor of a tunnel furnace for circuit board solidification which characterized in that: the conveying device is arranged in the shell, a feed inlet is formed in the left side of the shell, and a discharge outlet is formed in the right side of the shell; the conveying device comprises two first conveying rollers which are respectively positioned at openings at two ends of a shell, each first conveying roller is fixed in the shell through a first conveying support, a first motor used for controlling the first conveying rollers to rotate is arranged on each first conveying support, the output end of each first motor is fixedly connected with the first conveying rollers, a first conveying belt is sleeved on each first conveying roller and is in transmission connection with the first conveying rollers, a plurality of fixing units used for fixing a circuit board are uniformly arranged on the conveying belts at intervals, each fixing unit comprises two supporting units arranged on the conveying belts in parallel, each supporting unit comprises two silica gel blocks and two fiber rods, one ends of the two fiber rods are fixed on the first conveying belt, the silica gel blocks are fixed at one ends of limiting rods far away from the first conveying belts, and the silica gel blocks are connected with the two fiber rods, the fiber rod is obliquely arranged towards the direction of the feed inlet; the utility model discloses a dust collection device, including casing, inlet scoop, aspiration channel, inlet scoop, dust collection component, fan, aspiration channel and aspiration cover communicate in proper order, the fan is fixed on the casing, the aspiration channel is fixed on the fan, the end of induced drafting of aspiration cover is towards inlet scoop department, one side of aspiration cover is fixed on the casing.

2. The conveyor device of claim 1, wherein the conveyor device comprises: conveying device's both ends all are provided with fortune material mechanism about, fortune material mechanism passes feed inlet and discharge gate to the fortune material mechanism of conveying device left end is the example: one end of the material conveying mechanism is positioned in the shell, and the other end of the material conveying mechanism penetrates through the feeding hole to the outside of the shell; the material transporting mechanism comprises a second conveying support, a second motor arranged on the second conveying support and two second conveying rollers arranged on the second conveying support and controlled by the second motor, four second conveying belts are arranged on the two second conveying rollers, the second conveying belts are parallel to each other and arranged at intervals, and gaps between the second conveying belts can be penetrated by the supporting units.

3. The conveying device of the tunnel furnace for circuit board curing according to claim 2, characterized in that: the feeding port is further provided with a guide mechanism, the guide mechanism is located on the left side of the conveying mechanism and comprises a third conveying support and a plurality of rotating shafts, the rotating shafts are arranged on the third conveying support at equal intervals, the rotating shafts are arranged in parallel, the rotating shafts and the second conveying rollers are located at the same height, third motors, the number of which is matched with the rotating shafts, are arranged on the third conveying support, each rotating shaft corresponds to one third motor and is fixedly connected with the third motor and is controlled to rotate by the third motor, a plurality of conveying discs are arranged on each rotating shaft, and the conveying discs are evenly arranged on the conveying rollers.

4. The conveying device of the tunnel furnace for circuit board curing according to claim 3, characterized in that: the conveying disc comprises a blank body, an elastic layer arranged outside the blank body and an activated carbon adsorption layer arranged outside the elastic layer, and dust absorption holes are formed in the surface of the activated carbon adsorption layer; be provided with damper between body and the axis of rotation, damper includes rubber ring, damper plate and the damping spring who sets gradually from axis of rotation to body direction, the damper plate passes through rubber ring bonding to be fixed in the axis of rotation, damping spring's both ends respectively with damper plate and body fixed connection.

5. The conveying device of the tunnel furnace for circuit board curing according to any one of claims 1 to 4, characterized in that: install on the aspiration channel and store up dirty pipe, store up dirty pipe and divide into about the aspiration channel two sections, it is located between the aspiration channel of both sides to store up dirty pipe, it adopts threaded connection with the aspiration channel to store up dirty pipe, it is provided with the external screw thread to store up dirty pipe one end, the other end is provided with the internal thread, it is provided with internal and external screw thread to correspond with the junction of storing up dirty pipe on the aspiration channel, it has the filter screen to store up dirty intraductal the fixed twisting ring that has on the dirty pipe outer wall of storage.