A kind of vertical curing oven conveying mechanism and vertical curing oven
Technical field
The utility model relates to Electronic products manufacturing fields, and in particular to a kind of vertical curing oven conveying mechanism and vertical solid
Change furnace.
Background technique
Vertical curing oven, also referred to as rectilinear curing oven or tower stove are more commonly used one in current SMT industry
Kind of solidification, drying equipment, principle be front-end process has been completed mounting surface component PCB product be placed in one it is opposite
In more stable hot environment, carry out that surface component is bonding with pcb board, drying, solidification.It is (horizontal) solid relative to tunnel type
Change furnace, rectilinear curing oven greatly reduces the occupied area of equipment, is conducive to businessman's reasonable Arrangement production line.
As shown in Figure 1, the movement of traditional vertical curing oven are as follows: in position, 1. 2. place locates to rise PCB product into plate in position
3. to position, then 3. locate to carry out horizontal push plate in position, then from position 4. from drop to position 5., from position 5. from go out
Plate, thus make PCB product in curing oven completion timing, temperature control curing process.
Vertical curing oven transport up-down mode is generally to use the sprocket wheel chain kind of drive currently on the market, is provided by motor
Power, drive sprocket, chain (supporting bar or supporting plate for placing PCB product are equipped on chain) operating, passes through various machines
Tool structure completes entire movement.
As shown in Figure 2 and Figure 3, traditional vertical curing oven conveying mechanism specifically includes that chain 100, sprocket wheel 200, supporting bar
300, rushing board mechanism 400, motor 500 and PCB product 600.Supporting bar 300 is assemblied on chain 100, passes through 500 drive chain of motor
Wheel 200, chain 100 are driven.Rising transmission from decline running part is the power train respectively individually driven by different motors 500
System, the transmission speed of the two is identical, and rotation direction is opposite.PCB product 600 is pushed into inlet by rushing board mechanism 400, is placed in
In supporting bar 300, top designated position is risen to rising running part, decline running part is pushed by another rushing board mechanism 400 again
And decline therewith, drop to behind the designated position of bottom and released again by rushing board mechanism 400, thus completes the solidification work of PCB product
Skill.
This is a kind of working method that vertical curing oven generally uses in the industry, and there is several point defects once for this structure:
(1), since the ascending, descending of the kind of drive is required to individual motor and the driving of chain conveyer system, will increase in equipment in this way
The complexity of portion's structure is unfavorable for later period user and maintains, safeguards;Secondly, chain belongs to flexible components, it is chaindriven
Tensioning and fixed structure, and it is easy to appear the possibility of loosening during transportation, there are hidden danger.
(2) a large amount of chain conveyer systems that rushing board mechanism and transport portion use, for lubricating the lubricating oil of rushing board mechanism and chain
It will affect the cleanliness inside equipment, be easy to pollute PCB product;
(3) traditional mode generally pushed into plate, ejecting plate and top push plate using mechanical push plate, due to each push plate
It acts various and is difficult to ensure that stress point is consistent, be easy to appear offset, snap-gauge phenomenon, once this occurs, PCB product is just
It can be damaged under the active force of rushing board mechanism.
Utility model content
The technical problem to be solved by the present invention is in view of the above drawbacks of the prior art, provide a kind of vertical solid
Change furnace conveying mechanism, overcomes the existing conveying mechanism defect that structure is complicated, volume is big, stability is poor.
The technical scheme adopted by the utility model to solve the technical problem is as follows: providing a kind of vertical curing oven conveyer
Structure, including fixed frame, material frame, feeding mechanism and elevating mechanism, the feeding mechanism are mounted on fixed frame;The elevating mechanism
Including the first power part, elevating screw and feed screw nut;The feed screw nut is mounted on material frame;The first power part installation
It is connect on fixed frame, and through elevating screw with screw nut driving, driving material frame makees elevating movement.
The still more preferably scheme of the utility model is: the feeding mechanism includes the second power part and multiple roller groups
Part;Second power part is mounted on fixed frame and is sequentially connected with roll wheel assembly, and drives whole roll wheel assemblies are synchronous to turn
It is dynamic.
The still more preferably scheme of the utility model is: the feeding mechanism further includes chain;The multiple roller group
Part includes idler wheel, sprocket wheel and shaft;One end of the shaft connects idler wheel, and the other end connects sprocket wheel;The sprocket wheel and chain
Engagement;Second power part is connect with chain drive, driving idler wheel rotation.
The still more preferably scheme of the utility model is: the feeding mechanism further includes evacuation component;The evacuation group
Part includes third power part;The third power part is mounted on fixed frame and is sequentially connected with roll wheel assembly, drives all rollings
Wheel, which synchronizes, puts in or moves back discharge rack.
The still more preferably scheme of the utility model is: the evacuation component further includes power screw rod and roll wheel assembly peace
Loading board;The shaft is mounted on roll wheel assembly mounting plate;One end of the power screw rod screw rod and the transmission of third power part connect
It connects, the other end and roll wheel assembly mounting plate are sequentially connected.
The still more preferably scheme of the utility model is: the fixed frame includes fixed plate;It is opened up in the fixed plate
There are multiple through-holes passed through for the idler wheel.
The still more preferably scheme of the utility model is: second power part includes first motor and the second motor;
The first motor, the second motor are separately mounted to the both ends of fixed plate, and connect with chain drive.
The still more preferably scheme of the utility model is: offering in the material frame multiple for accommodating PCB product
Locating slot;The side of the material frame is equipped with multiple avoid holes for injecting for the idler wheel.
The still more preferably scheme of the utility model is: the material frame includes bottom plate, cover board and multiple positioning plates;It is described
One end of multiple positioning plates is connect with bottom plate, and the other end is connect with cover board, and is arranged at intervals on the two sides of bottom plate, and two is adjacent
Positioning plate and bottom plate, cover board surround the avoid holes;The feed screw nut is mounted on positioning plate;The locating slot is provided with institute
It states on positioning plate.
The still more preferably scheme of the utility model is: providing a kind of vertical curing oven, including solidification furnace shell, setting
Solidifying electrical control mechanism and heating mechanism in furnace shell, is further including above-mentioned vertical curing oven conveying mechanism, it is described vertical solid
Change furnace conveying mechanism to be arranged in the solidification furnace shell.
The beneficial effects of the utility model are, drive material frame lifting by using screw rod lifting structure, compare sprocket chain
Lifting structure, simplifies the structure of entire conveying mechanism, and then effectively reduce the outer dimension of curing oven, is conducive to close
Removing the work sets production line, and its simple and compact structural stability is higher, it is not easy to when occurring the case where loosening, while also reduce
The difficulty of maintenance.And the lubricating oil that screw rod lifting structure uses is less, then by material frame by screw rod elevating screw with
PCB product separation, further prevents lubricant pollution to product, greatly improves production efficiency and product yield.
Detailed description of the invention
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing:
Fig. 1 is the action schematic diagram of the vertical curing oven conveying mechanism of the prior art;
Fig. 2 is the structural schematic diagram of the vertical curing oven conveying mechanism of the prior art;
Fig. 3 is the working state schematic representation of the vertical curing oven conveying mechanism of the prior art;
Fig. 4 is the floor map of the vertical curing oven conveying mechanism of the utility model embodiment one;
Fig. 5 is the cross-sectional view of the position A-A in Fig. 4;
Fig. 6 is the structural schematic diagram of the elevating mechanism of the utility model embodiment one;
Fig. 7 is the structural schematic diagram of the feeding mechanism of the utility model embodiment one;
Fig. 8 is the cross-sectional view of the position B-B in Fig. 4 (feeding mechanism is in when putting in state);
Fig. 9 is the cross-sectional view of the position B-B in Fig. 4 (feeding mechanism is in when exiting state);
Figure 10 is the cross-sectional view of the vertical curing oven conveying mechanism of the utility model embodiment two;
Figure 11 is the structural schematic diagram of the elevating mechanism of the utility model embodiment two;
Figure 12 is the structural schematic diagram of the vertical curing oven conveying mechanism of the utility model embodiment three;
Figure 13 is the structural schematic diagram of the vertical curing oven conveying mechanism of the utility model embodiment four.
Specific embodiment
Now in conjunction with attached drawing, elaborate to the preferred embodiment of the utility model.
Embodiment one
As shown in figures 4-6, the vertical curing oven conveying mechanism of the present embodiment includes fixed frame (not shown), material frame 2, send
Expect mechanism 3 and elevating mechanism 4.The feeding mechanism 3 is mounted on fixed frame.Elevating mechanism 4 includes the first power part 41, lifting
Screw rod 42 and feed screw nut 43.Wherein, feed screw nut 43 is mounted on material frame 2, and the first power part 41 is mounted on fixed frame, and
It is sequentially connected by elevating screw 42 and feed screw nut 43, makees elevating movement using the positive and negative rotation driving material frame 2 of elevating screw 42.
The lifting of material frame 2 is driven by using screw rod lifting structure, is compared sprocket wheel chain structure, is simplified the knot of entire conveying mechanism
Structure, and then the outer dimension of curing oven is effectively reduced, be conducive to reasonable Arrangement production line, and its simple and compact structure
Stability is higher, it is not easy to loosening when occurring, while also reducing the difficulty of maintenance.And screw rod lifting structure uses
Lubricating oil is fewer with respect to sprocket wheel chain structure, then by expecting that frame 2 separates elevating screw 42 with PCB product 5, further prevents
Lubricant pollution greatly improves production efficiency and product yield to product.Similarly, the transmission of elevating mechanism 4 not only limits
It is driven in screw rod lifting structure, gear & rack structure can also be used or replaces above-mentioned screw rod lifting knot using lifting electric cylinders
Structure can equally play the role of reducing occupied space and reduce lubricating oil usage amount.
Specifically, Fig. 7~Fig. 9 is referred to together, and the feeding mechanism 3 includes the second power part 31, multiple roll wheel assemblies 32
With chain 33.Each roll wheel assembly 32 includes idler wheel 321, sprocket wheel 322 and shaft.One end of shaft connects idler wheel 321, another
End connection sprocket wheel 322.Sprocket wheel 322 is engaged with chain 33.Second power part 31 is sequentially connected with chain 33, drives whole idler wheels
321 rotate synchronously.More preferably, second power part 31 include can be with the first motor 311 of positive and negative rotation and the second motor 312.
First motor 311, the second motor 312 are separately mounted on fixed frame, and are sequentially connected with chain 33.It in production, can basis
Demand selection is rotated using one or two motor-driven drive sprockets 322, chain 33, is not repeated herein.
When due to 321 operation of idler wheel be located at material frame 2 in, each time into plate or ejecting plate movement after the completion of, material frame 2 require into
Row oscilaltion can collide if idler wheel 321 is not exited from material frame 2 with PCB product 5 and material frame 2.Therefore, described
Feeding mechanism 3 further includes evacuation component 34.Avoiding component 34 includes third power part 341, power screw rod 342 and roll wheel assembly peace
Loading board (not shown).Above-mentioned shaft is installed in rotation on roll wheel assembly mounting plate.Roll wheel assembly mounting plate is located at idler wheel 321
Between sprocket wheel 322.The output end of third power part 341 and one end of power screw rod 342 are coaxially connected, power screw rod 342
The other end and roll wheel assembly mounting plate are sequentially connected.Roll wheel assembly mounting plate can be driven by the positive and negative rotation of power screw rod 342
Discharge rack 2 is put in or moves back together together with multiple roll wheel assemblies 32 thereon.Similarly, in addition to above-mentioned screw rod group driving method it
It outside, can also be using the telescopic moving of the Component drivers roll wheel assemblies 33 such as cylinder, electric cylinders.Preferably, in this implementation, above-mentioned first
High-precision stepper motor or servo motor can be used in power part 41, the second power part 31 and third power part 341.It is described solid
Determine to set that there are two fixed plates 11 disposed in parallel on frame.Above-mentioned first motor 311, the second motor 312 are separately mounted to fixed plate
11 both ends.Eight roll wheel assemblies 32 are equipped in curing oven conveying mechanism altogether, the two sides of material frame 2 are respectively provided with four roller groups
Part 32.Therefore, the through-hole passed through there are four being opened up in two fixed plates 11 for the idler wheel 321.Certainly, roll wheel assembly 32,
The quantity of through-hole is set according to actual needs, however it is not limited to the quantity in the present embodiment.
In loading and unloading, third power part 341 drives roll wheel assembly 32 to stretch feeding rack 2, and the second power part 31 drives idler wheel
Component 32 rotates and then drives PCB product 5 mobile.It is PCB product 5 into and out of providing power by using this roller structure,
When offset, snap-gauge situation occurs in PCB product 5,321 meetings of idler wheel are slided with respect to PCB product 5 without applying to PCB product 5
Active force and lead to its damage.And in loading and unloading process or lifting process, to avoid roll wheel assembly 32 from damaging PCB product 5 by pressure, the
Three power parts 341 driving idler wheel 321 moves back discharge rack 2, greatly improves the yield of product.
Further, with continued reference to Fig. 4, Fig. 5, expect that frame 2 includes bottom plate 21, cover board 22 and multiple positioning plates 23.Positioning plate
The locating slot for positioning PCB product 5 is offered on 23,23 one end of positioning plate is connect with bottom plate 21, and the other end and cover board 22 connect
It connects, and is arranged at intervals on the two sides of bottom plate 21, two adjacent positioning plates 23 and bottom plate 21, cover board 22 are surrounded to be inserted for idler wheel 321
Into avoid holes;Above-mentioned feed screw nut 43 is mounted on positioning plate 23 by connecting plate 44.Preferably, it is equipped with altogether in the present embodiment
Ten positioning plates 23, the two sides on bottom plate 21 are respectively equipped with five positioning plates 23 for being parallel to each other and being spaced, five positioning plates 23
Between formed four avoid holes.By expecting this structure of frame 2, can further by PCB product 5 and external power train every
It opens, avoids the lubricant pollution on elevating screw 42 and feed screw nut 43 to PCB product 5, ensure that the yield of product again.
More preferably, the present embodiment also provides a kind of vertical curing oven (not shown), including solidification furnace shell, setting are solidifying
The intracorporal electrical control mechanism of furnace shell and heating mechanism further include the vertical curing oven conveying mechanism in the present embodiment, described vertical
The setting of curing oven conveying mechanism is in solidification furnace shell.
Specifically, the working principle of the vertical curing oven conveying mechanism of the present embodiment are as follows:
Third power part 341 enters material frame 2 after cooperating power screw rod 342 that idler wheel 321 is driven to pass through through-hole, avoid holes
In, first motor 311 and/or the rotation of the second motor 312 drive whole idler wheels 321 to rotate by chain 33.Then feeding mechanism
PCB product 5 is put on idler wheel 321 by (not shown).After PCB product 5 enters conveying mechanism from entrance, each idler wheel 321 is by PCB
Product 5 is delivered to the designated position in material frame 2, completes to act into plate.Subsequent third power part 341 drives outside idler wheel 321 to two
Side is exited, until idler wheel 321 avoids material frame 2, completes horizontal reciprocating movement.After idler wheel 321 exits, the driving of the first power part 41 is risen
It drops screw rod 42 to rotate, drives feed screw nut 43 and material frame 2 to rise, next layer of empty locating slot is raised, starts to carry out next layer
PCB product 5 into plate, idler wheel 321 enters material across through-hole, avoid holes again by the driving of third power part 341 at this time
Internal former designated position in frame 2, to provide power into plate next time.Above-mentioned movement is repeated, until each in entire material frame 2
After locating slot all fills PCB product 5, idler wheel 321 is exited to two sides avoids material frame 2, and the control material frame 2 of elevating mechanism 4 realizes lifting
After movement is heating and curing, initial position (i.e. for the first time into plate when expect the position of frame 2) is returned to, idler wheel 321 is again to 2 inside of material frame
It is moved to designated position, power is provided by PCB product 5 and removes (principle for following first in first out) from exit, it is dynamic to complete ejecting plate
Make.The ejecting plate principle of PCB product 5 in subsequent every a positioning groove is identical, and details are not described herein again.Particularly, when the layer
After the PCB product 5 of completion curing process is moved out of material frame 2, PCB product 5 to be solidified is transported to this layer of sky again by inlet
In locating slot, then, idler wheel 321 is mobile to two sides again, avoids material frame 2, and the control material frame 2 of elevating mechanism 4 rises, next layer
Carry out disengaging product operation.Above-mentioned movement is repeated, lasting automated job can be realized in equipment.
Embodiment two
As shown in Figure 10, Figure 11, the present embodiment two provides the elevating mechanism 40 of another kind of drive, the elevating mechanism
40 include the 4th power part 410, gear 420 and rack gear 430.Wherein, rack gear 430 is vertically installed on positioning plate 23, and the 4th is dynamic
Power portion 410 is mounted on fixed frame, and is sequentially connected by gear 420 and rack gear 430, is driven using the positive and negative rotation of gear 420
Rack gear 430 is gone up and down together together with material frame 2.
Embodiment three
As shown in figure 12, the present embodiment three provides a kind of vertical curing oven conveying mechanism, working principle and embodiment one
Working principle it is identical.Its difference is that the vertical curing oven conveying mechanism in embodiment one is using single material frame, this reality
The vertical curing oven conveying mechanism of example three is applied using double material rack, expects for two to be equipped with the stopper that can be stretched up and down between framves
6., once into two pieces of plate, efficiency is twice of pure frame for it.Specifically, stopper 6 is in indentation state when original state, when
After roll wheel assembly 32 send first PCB product to the material frame on right side, stopper 6 stretches out, and second PCB product limit is existed
In the material frame on the left side.Similarly, if not using this control mode of stopper, inductor (not shown) can also be set in inlet,
Inductor is detected to 31 signal of the second power part after PCB product 5, and controls the stroke of its rotation, and then is controlled two PCB and produced
The placement location of product 5.
Example IV
As shown in figure 13, the present embodiment four provides a kind of vertical curing oven conveying mechanism, the vertical curing oven conveyer
Structure is double double material rack structure, and working principle is identical as the conveying mechanism of embodiment three, so here is no more repetition.Compared to reality
The vertical curing oven conveying mechanism of example three is applied, efficiency improves 2 times again.Certainly, conveying mechanism disclosed in the present application it is unlimited its
Expect frame quantity, actually can according to demand depending on.
It should be understood that above embodiments are only to illustrate the technical solution of the utility model, it is rather than its limitations, right
For those skilled in the art, it can modify to technical solution illustrated in the above embodiments, or to part of skill
Art feature is equivalently replaced;And all such modifications and replacement, it all should belong to the protection of the appended claims for the utility model
Range.