CN111408808A - Reflow oven segmentation transmission system and reflow oven - Google Patents
Reflow oven segmentation transmission system and reflow oven Download PDFInfo
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- CN111408808A CN111408808A CN202010335370.6A CN202010335370A CN111408808A CN 111408808 A CN111408808 A CN 111408808A CN 202010335370 A CN202010335370 A CN 202010335370A CN 111408808 A CN111408808 A CN 111408808A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 70
- 230000011218 segmentation Effects 0.000 title abstract description 5
- 230000007246 mechanism Effects 0.000 claims abstract description 56
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 12
- 238000009434 installation Methods 0.000 description 11
- 230000001050 lubricating effect Effects 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 5
- 238000005476 soldering Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/04—Heating appliances
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
- B23K2101/42—Printed circuits
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Abstract
The application provides a reflow oven segmentation transmission system and reflow oven relates to reflow oven technical field. Reflow oven segmentation transmission system includes entry mechanism, exit mechanism, first drive arrangement, second drive arrangement, entry track and export track, and entry mechanism is erect to orbital one end of entry, and orbital other one end of entry links up with the orbital one end of export, and exit mechanism is erect to orbital other one end of export, and entry track transmission product can be ordered about to first drive arrangement, and export track transmission product can be ordered about to second drive arrangement. Reflow oven sectional transmission system sets up entry track and export track and dispose independent drive arrangement respectively, when the product trades the line, makes the temperature curve of the reflow oven that has used this reflow oven sectional transmission system can obtain quick adjustment, has shortened the line time of trading greatly, even if the switching frequency of product is higher, also can ensure and promote the productivity of assembly line, is of value to actual production.
Description
Technical Field
The application relates to the technical field of reflow furnaces, in particular to a reflow furnace sectional transmission system and a reflow furnace.
Background
In the surface mounting of the printed circuit board, reflow furnace welding is a key process, and the function is to heat and melt cream soldering tin printed on the circuit board in advance according to a specific temperature rise slope and a temperature range so as to complete the welding between the circuit board and parts. Since the printed circuit board is heated by the temperature zones during the reflow process, the speed of the conveyor chain is an important parameter in the definition of the process parameters, and the adjustment of the parameter affects the heating speed, the time of the printed circuit board passing through the reflow oven, and the like.
The traditional furnace body is divided into an upper part and a lower part, a transmission chain is arranged in the middle, and a program controllable motor drives the chain to transmit the whole chain. The length of part furnace body mainly differs according to the number of the zone of heating and cooling zone, and the zone of heating of present reflow oven has 4 ~ 13 districts and varies, and the cooling zone has 1 ~ 4 districts and varies, and also some stoves do not take the cooling zone, lets the PCB board go out the stove after in the air natural cooling. The temperature of each temperature zone can be set in a programmable way, and generally the temperature range can be set from room temperature to about 350 ℃.
However, the speed of the conventional reflow oven is an integral value when the transmission circuit board is soldered, and once the parameter is modified, the passing speed of the product in each zone is affected, and the flexible control cannot be realized. Different process formula parameters (including temperature setting, wind speed setting and transmission of each temperature zone) are required to be set for different products to achieve a proper temperature curve due to the size, thickness, number of parts, area of copper foil of a plate body, heat absorption capacity of the parts and the like. If the production of the product needs to be switched, the process formula parameters of the reflow furnace need to be switched. If the process recipe parameters have large temperature differences, the production cannot be carried out with long waiting time, and if the frequency of switching products is high, the capacity of the whole production line is seriously influenced. Resulting in a large loss of capacity.
Disclosure of Invention
The application aims to provide a reflow oven subsection transmission system which can solve the problem that a large amount of time is consumed when an existing reflow oven is used for replacing products.
It is another object of the present application to provide a reflow oven that includes the above-described reflow oven staging system that has all of the features of the reflow oven staging system.
The embodiment of the application is realized as follows:
the embodiment of the application provides a reflow oven segmentation transmission system, includes: entrance mechanism, exit mechanism, first drive arrangement, second drive arrangement, entry track and export track, the orbital one end of entry is erect in entrance mechanism, the orbital other end of entry with the orbital one end of export links up, the orbital other end of export is erect in exit mechanism, first drive arrangement can order about entry track transmission product, the second drive arrangement can order about export track transmission product.
The reflow oven subsection transmission system can be used for flexibly adapting to products by changing the transmission speed of different rails when switching the products by respectively configuring independent driving devices for the inlet rail and the outlet rail. By adjusting the transmission speed, which is a production condition that can be adjusted in place more easily and quickly, the process parameters of the product are less modified, and the time consumption for switching the product is reduced integrally.
In addition, the segmented conveying system of the reflow oven provided by the embodiment of the application can also have the following additional technical characteristics:
in an optional embodiment of the present application, the entrance track includes a first guide rail, a third guide rail, a fifth guide rail and a seventh guide rail that are sequentially arranged side by side, the first guide rail and the third guide rail are configured as a first track, the fifth guide rail and the seventh guide rail are configured as a third track, the first driving device includes a first motor and a third motor, the first motor can drive the first orbital transmission chain, and the third motor can drive the third orbital transmission chain.
In an optional embodiment of the present application, the exit track includes a second rail, a fourth rail, a sixth rail, and an eighth rail, which are sequentially arranged side by side, the second rail and the fourth rail are configured as the second track, the sixth rail and the eighth rail are configured as the fourth track, the second driving device includes a second motor and a fourth motor, the second motor is capable of driving the transmission chain of the second track, and the fourth motor is capable of driving the transmission chain of the fourth track;
the second track is engaged with the first track to form a first product channel, and the third track is engaged with the fourth track to form a second product channel.
In an alternative embodiment of the present application, the reflow oven staging system further includes a first width adjustment assembly and a second width adjustment assembly;
the first width adjusting assembly is in transmission connection with the third guide rail and the fourth guide rail and can drive the third guide rail and the fourth guide rail to synchronously move in the horizontal direction so as to adjust the width of the first product channel;
the second width adjusting assembly is in transmission connection with the fifth guide rail and the sixth guide rail and can drive the fifth guide rail and the sixth guide rail to synchronously move in the horizontal direction so as to adjust the width of the second product channel.
Through setting up first width adjustment subassembly and second width adjustment subassembly, can adjust the width of different product passageways for the product passageway can adapt to different products, thereby makes whole transmission system can adapt to more products.
In an alternative embodiment of the present application, the width adjustment assembly includes an adjustment motor, an adjustment drive rod, a first adjustment rack, a second adjustment rack, and a slide assembly;
the adjusting motor and the first adjusting rack are arranged on the outlet mechanism, the sliding assembly and the second adjusting rack are arranged on the inlet mechanism, and the second adjusting rack is parallel to the first adjusting rack;
one end of the adjusting driving rod is connected with the shell of the adjusting motor, the output end of the adjusting motor is meshed with the first adjusting rack through a gear, the other end of the adjusting driving rod is connected with the sliding assembly, the sliding assembly is matched with the second adjusting rack, and the middle part of the adjusting driving rod is connected with a guide rail;
when the adjusting motor works, the adjusting driving rod moves along the adjusting rack and pulls the guide rail to move.
The gear rack mechanism can ensure the accuracy in adjustment, so that the width adjustment is stable and in place, and the adaptability to products is met.
In an alternative embodiment of the present application, the width adjustment assembly includes an adjustment motor, an adjustment drive rod, a first adjustment rack, a second adjustment rack, and a slide assembly;
the adjusting motor and the first adjusting rack are arranged on the inlet mechanism, the sliding assembly and the second adjusting rack are arranged on the outlet mechanism, and the second adjusting rack is parallel to the first adjusting rack;
one end of the adjusting driving rod is connected with the shell of the adjusting motor, the output end of the adjusting motor is meshed with the first adjusting rack through a gear, the other end of the adjusting driving rod is connected with the sliding assembly, the sliding assembly is matched with the second adjusting rack, and the middle part of the adjusting driving rod is connected with a guide rail;
when the adjusting motor works, the adjusting driving rod moves along the adjusting rack and pulls the guide rail to move.
The gear rack mechanism can ensure the accuracy in adjustment, so that the width adjustment is stable and in place, and the adaptability to products is met.
In an alternative embodiment of the present application, the reflow oven staging system further includes a first rail mount and a second rail mount, the inlet mechanism includes an inlet rail mount, and the outlet mechanism includes an outlet rail mount;
the first guide rail, the third guide rail, the fifth guide rail and the seventh guide rail are respectively erected on one inlet guide rail seat and the first guide rail seat;
the second guide rail, the fourth guide rail, the sixth guide rail and the eighth guide rail are respectively erected on the outlet guide rail seat and the second guide rail seat;
the first guide rail seat is connected with the second guide rail seat.
The guide rail seat provides a foundation for the installation of each rail, provides a foundation for the connection between the rails, and facilitates the flow of products on the rails, thereby providing help for the processing of the products.
In an optional embodiment of the present application, the reflow oven section transportation system further includes a first intermediate rail, a second intermediate rail, and a third driving device, the second intermediate rail is joined with the first intermediate rail to form a first product channel, the third intermediate rail is joined with the fourth intermediate rail through the second intermediate rail to form a second product channel, the transmission chain of the first intermediate rail is driven by at least one of the third driving devices, and the transmission chain of the second intermediate rail is driven by at least one of the third driving devices.
When the furnace body of the reflow soldering path is long or the transmission speed needs to be further finely regulated, an intermediate track can be additionally arranged between the outlet track and the inlet track, and the driving of the intermediate track is also independent driving, so that the production requirement can be met.
In an alternative embodiment of the present application, the entrance guide rail seat has an entrance guide block, the entrance guide block engaging the guide rail;
the outlet guide rail seat is provided with an outlet guide block, and the outlet guide block is connected with the guide rail.
The existence of guide block makes the product business turn over furnace body can both be more smooth, avoids the product to collide with.
Embodiments of the present application provide a reflow oven, including a furnace body and the reflow oven sectional transport system of any one of the above, the inlet track is configured at the preheating section of the furnace body, and the outlet track is configured at the reflow section of the furnace body.
The reflow oven is provided with the reflow oven sectional transmission system, so that the transmission speed can be quickly adjusted when a product is replaced, all temperature areas are not required to be adjusted, time consumed for adjusting the temperature areas is reduced, time consumed for switching the product is integrally reduced, and production efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is an isometric view of a reflow oven staging system provided in embodiment 1 of the present application;
fig. 2 is a partially enlarged view of a portion a of fig. 1;
fig. 3 is a partially enlarged view of a portion B of fig. 1;
fig. 4 is a partially enlarged view of a portion C of fig. 1;
FIG. 5 is a front view of the inlet mechanism;
FIG. 6 is a side view of FIG. 5;
FIG. 7 is a top view of FIG. 5;
FIG. 8 is a front view of the exit mechanism;
FIG. 9 is a side view of FIG. 8;
fig. 10 is a top view of fig. 8.
Icon: 100-a reflow oven sectional transport system; 10-an inlet mechanism; 11-an inlet guide rail seat; 111-an inlet guide block; 12-a slide bar; 20-an outlet mechanism; 21-an outlet guide rail seat; 22-an exit guide block; 30-a first drive; 31-a first motor; 311-a first track transport drive rod; 33-a third motor; 333-third track transmission drive rod; 40-a second drive; 42-a second motor; 422-a second track transport drive rod; 44-a fourth motor; 444-fourth track transfer drive rod; 50-an entrance track; 51-a first guide rail; 53-a third guide rail; 55-a fifth guide rail; 57-a seventh guide rail; 60-an exit track; 62-a second guide rail; 64-a fourth guide rail; 66-a sixth guide rail; 68-eighth guide rail; 70-a lubricating device; 80-a first rail seat; 90-a second rail seat; 101-adjustment of the motor; 102-adjusting the drive rod; 103-a sliding assembly; 110-a frame plate; 1101-rack seat; 104-intermediate rack mount.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the product conventionally places when used, and are only used for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Example 1
Referring to fig. 1 to 10, an embodiment of the present application provides a segmented conveying system 100 of a reflow oven, including: the automatic product conveying device comprises an inlet mechanism 10, an outlet mechanism 20, a first driving device 30, a second driving device 40, an inlet track 50 and an outlet track 60, wherein one end of the inlet track 50 is erected on the inlet mechanism 10, the other end of the inlet track 50 is connected with one end of the outlet track 60, the other end of the outlet track 60 is erected on the outlet mechanism 20, the first driving device 30 can drive the inlet track 50 to convey products, and the second driving device 40 can drive the outlet track 60 to convey products.
Referring to fig. 2 and fig. 5 to 7, in the present embodiment, the entrance track 50 includes a first rail 51, a third rail 53, a fifth rail 55 and a seventh rail 57, which are sequentially arranged side by side, the first rail 51 and the third rail 53 are configured as a first track, the fifth rail 55 and the seventh rail 57 are configured as a third track, the first driving device 30 includes a first motor 31 and a third motor 33, the first motor 31 can drive a transmission chain of the first track, and the third motor 33 can drive a transmission chain of the third track.
In detail, the first motor 31 transmits power to the transmission chain of the first rail through the first rail transmission driving lever 311. The first track transmission driving rod 311 is simultaneously inserted into the inlet track 50 seat specifically proposed below of the first guide rail 51 and the third guide rail 53, and the inlet track 50 seat is provided with a transmission gear for driving a transmission chain. Similarly, the third motor 33 is a transmission chain for transmitting power to the third rail through the third rail transmission driving rod 333. It is understood that the second motor 42 and the fourth motor 44 are driven by the second rail-transmitting driving rod 422 and the fourth rail-transmitting driving rod 444, respectively, and will not be described in detail herein.
It should be noted that fig. 5 is a top view of the inlet mechanism 10 when installed in place, and is shown here as a front view to highlight the structure for easy viewing. Fig. 6 and 7 are both further side or top views from this perspective to facilitate viewing of structural features.
Referring to fig. 3 and 8 to 10, in the present embodiment, the outlet track 60 includes a second guide rail 62, a fourth guide rail 64, a sixth guide rail 66 and an eighth guide rail 68 which are sequentially arranged side by side, the second guide rail 62 and the fourth guide rail 64 configure a second track, the sixth guide rail 66 and the eighth guide rail 68 configure a fourth track, the second driving device 40 includes a second motor 42 and a fourth motor 44, the second motor 42 can drive a transmission chain of the second track, and the fourth motor 44 can drive a transmission chain of the fourth track.
The second track is joined to the first track to form a first product channel, and the third track is joined to the fourth track to form a second product channel.
It should be noted that fig. 8 is a top view of the inlet mechanism 10 when installed in place, and the structure is highlighted here as a front view for easy viewing. Fig. 9 and 10 are both further side or top views from this perspective to facilitate viewing of structural features.
It will be appreciated that more tracks may be added in the width direction to form more tracks and ultimately more product channels to accommodate more product in the width direction for greater throughput.
Please refer to fig. 4, in the drawings of the present embodiment, the transmission chains on the guide rails are not directly shown. However, it is understood that in the figures relating to the guide rails, the respective drive chains may be installed and the chains circulate on the respective guide rails independently of one another, for example, in fig. 4, the drive chains may be wound and steered by means of the steering wheel.
Furthermore, the drive chain on the guide rail is provided with a lubricating device 70, which can be connected to the guide rail and the drive chain by means of oil lines. Such as the first guide rail 51 and the third guide rail 53, the fifth guide rail 55 and the seventh guide rail 57, the second guide rail 62 and the fourth guide rail 64, and the sixth guide rail 66 and the eighth guide rail 68, each pair of guide rails is provided with a lubricating device 70 for lubricating the drive chain on each guide rail. The structure and function of the lubricating device 70 can refer to the transmission lubricating device 70 in the general technology, and the details are not repeated here.
Referring to fig. 2 to 4, in detail, the reflow oven sectional transportation system 100 further includes a first rail seat 80 and a second rail seat 90, the inlet mechanism 10 includes an inlet rail seat 11, and the outlet mechanism 20 includes an outlet rail seat 21;
the first guide rail 51, the third guide rail 53, the fifth guide rail 55 and the seventh guide rail 57 are respectively erected on one inlet guide rail seat 11 and the first guide rail seat 80;
the second guide rail 62, the fourth guide rail 64, the sixth guide rail 66 and the eighth guide rail 68 are respectively erected on one exit guide rail seat 21 and a second guide rail seat 90;
the first rail seat 80 is engaged with the second rail seat 90.
The guide rail seat provides a foundation for the installation of each rail, provides a foundation for the connection between the rails, and facilitates the flow of products on the rails, thereby providing help for the processing of the products.
Optionally, in this embodiment, the reflow oven section transportation system 100 further includes a first intermediate rail, a second intermediate rail, and a third driving device, the second intermediate rail is connected to the first intermediate rail through the first intermediate rail to form a first product channel, the third intermediate rail is connected to the fourth intermediate rail through the second intermediate rail to form a second product channel, the transmission chain of the first intermediate rail is driven by at least one third driving device, and the transmission chain of the second intermediate rail is driven by at least one third driving device.
The guide rail of the middle rail is also erected on the guide rail seat, and the guide rail seat of the middle rail can refer to the structures of the first guide rail seat 80 and the second guide rail seat 90, so that the guide rail seat of the middle rail can be respectively connected with the first guide rail seat 80 and the second guide rail seat 90 at the two ends to finish the transmission of the product.
Correspondingly, the third driving device can also refer to the first and second driving devices 40, and can independently drive the transmission chain of the middle rail so as to adjust the speed. Similarly, a motor may be selected for use as the third drive means.
When the furnace body of the reflow soldering circuit is long or the transmission speed needs to be further finely regulated, an intermediate rail can be additionally arranged between the outlet rail 60 and the inlet rail 50, and the driving of the intermediate rail is also independently driven, so that the production requirement can be met.
It will be appreciated that when an intermediate rail is employed, the lubrication device 70 described above, as well as the width adjustment assembly and the like described below, will also be disposed on the intermediate rail to achieve the same operating conditions of the intermediate rail as the inlet and outlet rails 50, 60, while also providing structural basis for the intermediate rail to cooperate with the inlet and outlet rails 60.
In more detail, the entrance guide holder 11 has an entrance guide block 111, and the entrance guide block 111 is engaged with the guide rail. The outlet guide rail seat 21 has an outlet guide block 22, and the outlet guide block 22 is engaged with the guide rail. The existence of guide block makes the product business turn over furnace body can both be more smooth, avoids the product to collide with.
Specifically, in the present embodiment, the reflow oven sectional conveying system 100 further includes a first width adjusting assembly and a second width adjusting assembly;
the first width adjusting assembly is in transmission connection with the third guide rail 53 and the fourth guide rail 64 and can drive the third guide rail 53 and the fourth guide rail 64 to synchronously move in the horizontal direction so as to adjust the width of the first product channel;
the second width adjustment assembly is in transmission connection with the fifth guide rail 55 and the sixth guide rail 66 and can drive the fifth guide rail 55 and the sixth guide rail 66 to synchronously move in the horizontal direction so as to adjust the width of the second product channel.
Through setting up first width adjustment subassembly and second width adjustment subassembly, can adjust the width of different product passageways for the product passageway can adapt to different products, thereby makes whole transmission system can adapt to more products.
The entrance mechanism 10 includes a slide bar 12 for facilitating the entrance guide rail seat 11 at the intermediate position to slide along the slide bar 12 during the width adjustment, thereby improving the smoothness of the width adjustment. The exit mechanism 20 may also be provided with a guide bar, such as a slide bar 12, to facilitate movement of the exit guide rail seat 21 in the intermediate position.
In detail, the width adjustment assembly includes an adjustment motor 101, an adjustment driving rod 102, a first adjustment rack, a second adjustment rack, and a sliding assembly 103;
the adjusting motor 101 and the first adjusting rack are arranged on the outlet mechanism 20, the sliding component 103 and the second adjusting rack are arranged on the inlet mechanism 10, and the second adjusting rack is parallel to the first adjusting rack;
one end of the adjusting drive rod 102 is connected with the shell of the adjusting motor 101, the output end of the adjusting motor 101 is meshed with the first adjusting rack through a gear, the other end of the adjusting drive rod 102 is connected with the sliding assembly 103, the sliding assembly 103 is matched with the second adjusting rack, and the middle part of the adjusting drive rod 102 is connected with the guide rail;
when the adjustment motor 101 is operated, the adjustment drive rod 102 moves along the adjustment rack and draws the guide rail.
It should be noted that the middle of the adjustment driving rod 102 is not limited to be the right middle position, but refers to the portion of the rod between the inlet and outlet mechanisms 20.
Further, in this embodiment, both the upper and lower surfaces of the first adjusting rack are tooth surfaces, the upper tooth surface is matched with a gear at the output end of the adjusting motor 101, and a gear is sleeved at one end of the adjusting driving rod 102 to be matched with the lower tooth surface, or a gear shaft is directly adopted as the adjusting driving rod 102 to be matched with the lower tooth surface. The adjustment motor 101 is connected to the adjustment drive rod 102 via a connecting block. So, when adjusting motor 101 during operation, because the output passes through gear and last flank of tooth meshing for adjust motor 101 wholly can remove along the length direction of first regulation rack, adjust motor 101's casing and drive the removal of continuous regulation actuating lever 102, adjust actuating lever 102 and be unsettled removal when removing, through cooperating with the flank of tooth down, make the removal of adjusting actuating lever 102 become more reliable and stable.
The other end of the adjustment drive rod 102, i.e. the end located at the inlet mechanism 10, is engaged with the lower flank of the second adjustment rack, and the slide assembly 103 is essentially a housing on which a gear is rotatably arranged so as to engage with the upper flank, which is equivalent to the engagement of the gear at the output of the adjustment motor 101 with the upper flank of the first adjustment rack. The housing is then connected to the adjustment drive rod 102. In this way, when the adjustment motor 101 is operated, the end of the adjustment drive rod 102 at the entrance mechanism 10 can be synchronously moved along the length direction of the second adjustment rack.
Alternatively, a second adjusting rack and sliding assembly 103 may be added to the entrance track 50, and then the middle portion of the adjusting driving rod 102 is engaged with the lower tooth surface of the second adjusting rack and hung below the second adjusting rack by means of the sliding assembly 103. Similarly, the outlet track 60 may be further provided with a second adjusting rack and sliding assembly 103, and the middle portion of the adjusting driving rod 102 is matched with the lower tooth surface of the first adjusting rack. Therefore, the stability of the adjusting driving rod 102 during moving is integrally enhanced, and finally, the widths of the first product channel and the second product channel are stably and accurately adjusted.
Alternatively, the adjustment driving rod 102 may be a single rod as described above, or may be composed of multiple short rods.
In the present application, the adjusting rack is not shown, and the adjusting rack may be mounted across the rack plates 110 on both sides of the outlet/inlet mechanism 10, such as by providing rack seats 1101 on the rack plates 110, and across the inlet track 50 and the outlet track 60, such as by providing a middle rack seat 104, so as to serve as a running track for the adjusting driving rod 102 in the width direction of the whole reflow oven staging system 100. The gear rack mechanism can ensure the accuracy in adjustment, so that the width adjustment is stable and in place, and the adaptability to products is met.
The principle of the embodiment is as follows:
in the prior art, when a product needs to be replaced, many process recipe parameters are modified, so that a proper temperature curve is obtained, and the product is processed. Such prior art generally takes a long time, and generally takes 30 minutes to 1 hour from the current product, and once the frequency of product switching is high, the productivity is affected.
In view of the above, the present application provides a reflow oven sectional conveying system 100, which can more flexibly adapt to products by changing conveying speeds of different rails when switching the products by configuring independent driving devices for the entrance rail 50 and the exit rail 60. The temperature and the wind speed of each temperature zone do not need to be adjusted comprehensively, and only the parameters of the individual temperature zones need to be adjusted properly. Even the effect of completing the switching only by adjusting the transmission speed of the track can be achieved.
And because the temperature and the wind speed are regulated in a slow process, and the transmission speed is regulated in a fast process, the process parameters of the product are less modified by regulating the transmission speed which is a production condition that the product is easier to regulate in place quickly, and the time consumption for switching the product is reduced integrally. The practical time of 30 minutes to 1 hour can be shortened to be less than 10 minutes. When the frequency of product switching is higher, the capacity of the whole production line is greatly improved compared with the prior art.
Furthermore, the product before switching is used as a first product, and the product after switching is used as a second product. When the last first product leaves the entrance track 50, the width of the product channel in the portion of the entrance track 50 can be adjusted and the speed of the entrance track 50 can be adjusted. The first second product is then fed into the entry mechanism 10 onto the entry track 50, which causes the second product to enter the processing sequence.
Thus, it is not necessary to wait for the first product to come out of the outlet mechanism 20 for the adjustment of the process parameters, as in the prior art. Finally, the time for emptying the first product is shortened, and the line changing time is further shortened.
Through practice, the line changing time of product switching can be further shortened to be within 5 minutes.
Example 2
The present embodiment also provides a reflow oven sectional transmission system 100, and the difference between the reflow oven sectional transmission system 100 of the present embodiment and the reflow oven sectional transmission system 100 in embodiment 1 is:
the width adjusting assembly comprises an adjusting motor 101, an adjusting driving rod 102, a first adjusting rack, a second adjusting rack and a sliding assembly 103;
the adjusting motor 101 and the first adjusting rack are arranged on the inlet mechanism 10, the sliding component 103 and the second adjusting rack are arranged on the outlet mechanism 20, and the second adjusting rack is parallel to the first adjusting rack;
one end of the adjusting drive rod 102 is connected with the shell of the adjusting motor 101, the output end of the adjusting motor 101 is meshed with the first adjusting rack through a gear, the other end of the adjusting drive rod 102 is connected with the sliding assembly 103, the sliding assembly 103 is matched with the second adjusting rack, and the middle part of the adjusting drive rod 102 is connected with the guide rail;
when the adjustment motor 101 is operated, the adjustment drive rod 102 moves along the adjustment rack and draws the guide rail.
The gear rack mechanism can ensure the accuracy in adjustment, so that the width adjustment is stable and in place, and the adaptability to products is met.
Other structures of the reflow oven sectional transmission system 100 of this embodiment and corresponding drawings can refer to embodiment 1, and are not described herein again.
It can be understood that the installation positions of the adjustment motor 101, the first adjustment rack and slide assembly 103, and the second adjustment rack are exchanged in this embodiment. The adjustment motor 101, the installation of the first adjustment rack with the inlet mechanism 10 and the installation cooperation with the adjustment driving rod 102 can refer to the installation of the adjustment motor 101, the first adjustment rack with the outlet mechanism 20 and the installation cooperation with the adjustment driving rod 102 in the embodiment 1. Similarly, the installation of the sliding assembly 103 and the second adjusting rack on the exit mechanism 20 and the installation of the adjusting driving rod 102 can be referred to the installation of the sliding assembly 103 and the second adjusting rack on the entrance mechanism 10 and the installation of the adjusting driving rod 102 in embodiment 1.
The segmented transmission system 100 of the reflow oven of the present embodiment can also shorten the line changing time, and improve the productivity of the product in the assembly line with high product switching frequency.
Example 3
The embodiment of the application provides a reflow soldering furnace, which comprises a furnace body and the reflow soldering furnace sectional conveying system 100 in the embodiment 1 or the embodiment 2, wherein the inlet track 50 is configured at the preheating section of the furnace body, and the outlet track 60 is configured at the reflow section of the furnace body.
The reflow oven is provided with the reflow oven sectional transmission system 100, so that the transmission speed can be quickly adjusted when a product is replaced, all temperature areas are not required to be adjusted, time consumed for adjusting the temperature areas is reduced, time consumed for switching the product is integrally reduced, and production efficiency is improved.
The furnace body can refer to the furnace body of a common reflow furnace, and the furnace body is not improved, so that the detailed description is omitted.
To sum up, reflow oven sectional transmission system 100 of this application sets up entry track 50 and export track 60 and dispose independent drive arrangement respectively, when the product trades the line, can be through changing the factor that this response of transmission speed is fast, make the temperature curve of the reflow oven that has used this reflow oven sectional transmission system 100 can obtain quick adjustment, adapt to new product, compared with prior art, the line time of trading has been shortened greatly, even if the switching frequency of product is higher, also can ensure and promote the productivity of assembly line, be of value to actual production.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A segmented conveying system of a reflow oven is characterized by comprising: entrance mechanism, exit mechanism, first drive arrangement, second drive arrangement, entry track and export track, the orbital one end of entry is erect in entrance mechanism, the orbital other end of entry with the orbital one end of export links up, the orbital other end of export is erect in exit mechanism, first drive arrangement can order about entry track transmission product, the second drive arrangement can order about export track transmission product.
2. The reflow oven staging system of claim 1, wherein the entry track includes a first rail, a third rail, a fifth rail, and a seventh rail arranged side-by-side in sequence, the first rail and the third rail configured as a first track, the fifth rail and the seventh rail configured as a third track, the first drive device including a first motor and a third motor, the first motor capable of driving the drive chain of the first track, the third motor capable of driving the drive chain of the third track.
3. The reflow oven staging system of claim 2, wherein the exit track includes a second rail, a fourth rail, a sixth rail, and an eighth rail arranged side-by-side in sequence, the second rail and the fourth rail configured as a second track, the sixth rail and the eighth rail configured as a fourth track, the second drive device including a second motor and a fourth motor, the second motor capable of driving the drive chain of the second track, the fourth motor capable of driving the drive chain of the fourth track;
the second track is engaged with the first track to form a first product channel, and the third track is engaged with the fourth track to form a second product channel.
4. The reflow oven staging system of claim 3, further comprising a first width adjustment assembly and a second width adjustment assembly;
the first width adjusting assembly is in transmission connection with the third guide rail and the fourth guide rail and can drive the third guide rail and the fourth guide rail to synchronously move in the horizontal direction so as to adjust the width of the first product channel;
the second width adjusting assembly is in transmission connection with the fifth guide rail and the sixth guide rail and can drive the fifth guide rail and the sixth guide rail to synchronously move in the horizontal direction so as to adjust the width of the second product channel.
5. The reflow oven staging system of claim 4, wherein the width adjustment assembly includes an adjustment motor, an adjustment drive rod, a first adjustment rack, a second adjustment rack, and a slide assembly;
the adjusting motor and the first adjusting rack are arranged on the outlet mechanism, the sliding assembly and the second adjusting rack are arranged on the inlet mechanism, and the second adjusting rack is parallel to the first adjusting rack;
one end of the adjusting driving rod is connected with the shell of the adjusting motor, the output end of the adjusting motor is meshed with the first adjusting rack through a gear, the other end of the adjusting driving rod is connected with the sliding assembly, the sliding assembly is matched with the second adjusting rack, and the middle part of the adjusting driving rod is connected with a guide rail;
when the adjusting motor works, the adjusting driving rod moves along the adjusting rack and pulls the guide rail to move.
6. The reflow oven staging system of claim 4, wherein the width adjustment assembly includes an adjustment motor, an adjustment drive rod, a first adjustment rack, a second adjustment rack, and a slide assembly;
the adjusting motor and the first adjusting rack are arranged on the inlet mechanism, the sliding assembly and the second adjusting rack are arranged on the outlet mechanism, and the second adjusting rack is parallel to the first adjusting rack;
one end of the adjusting driving rod is connected with the shell of the adjusting motor, the output end of the adjusting motor is meshed with the first adjusting rack through a gear, the other end of the adjusting driving rod is connected with the sliding assembly, the sliding assembly is matched with the second adjusting rack, and the middle part of the adjusting driving rod is connected with a guide rail;
when the adjusting motor works, the adjusting driving rod moves along the adjusting rack and pulls the guide rail to move.
7. The reflow oven staging system of claim 3, further comprising a first track base and a second track base, the inlet mechanism comprising an inlet track base and the outlet mechanism comprising an outlet track base;
the first guide rail, the third guide rail, the fifth guide rail and the seventh guide rail are respectively erected on one inlet guide rail seat and the first guide rail seat;
the second guide rail, the fourth guide rail, the sixth guide rail and the eighth guide rail are respectively erected on the outlet guide rail seat and the second guide rail seat;
the first guide rail seat is connected with the second guide rail seat.
8. The reflow oven staging system of claim 7, further comprising a first intermediate track, a second intermediate track, and a third drive, the second track engaging the first track through the first intermediate track to form a first product lane, the third track engaging the fourth track through the second intermediate track to form a second product lane, the drive chain of the first intermediate track being driven by at least one of the third drive, the drive chain of the second intermediate track being driven by at least one of the third drive.
9. The reflow oven staging system of claim 7, wherein the entry guide rail mount has entry guide blocks that engage the guide rails;
the outlet guide rail seat is provided with an outlet guide block, and the outlet guide block is connected with the guide rail.
10. A reflow oven, comprising an oven body and the reflow oven sectional transfer system of any one of claims 1-9, wherein the inlet track is configured in the preheat section of the oven body and the outlet track is configured in the reflow section of the oven body.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010335370.6A CN111408808A (en) | 2020-04-24 | 2020-04-24 | Reflow oven segmentation transmission system and reflow oven |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010335370.6A CN111408808A (en) | 2020-04-24 | 2020-04-24 | Reflow oven segmentation transmission system and reflow oven |
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| CN114700575A (en) * | 2022-04-19 | 2022-07-05 | 江西兆驰半导体有限公司 | Method for optimizing reflux curve of back-brushed tin product |
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