CN113200285A - Segmented transmission system of reflow oven - Google Patents
Segmented transmission system of reflow oven Download PDFInfo
- Publication number
- CN113200285A CN113200285A CN202110682980.8A CN202110682980A CN113200285A CN 113200285 A CN113200285 A CN 113200285A CN 202110682980 A CN202110682980 A CN 202110682980A CN 113200285 A CN113200285 A CN 113200285A
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- conveying
- distance adjusting
- reflow oven
- driving
- wheel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G13/00—Roller-ways
- B65G13/02—Roller-ways having driven rollers
- B65G13/06—Roller driving means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G13/00—Roller-ways
- B65G13/075—Braking means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Abstract
The invention discloses a reflow oven segmented transmission system, which relates to the technical field of reflow ovens and comprises a centering device arranged at the inlet of a circuit board on a reflow oven and a plurality of groups of conveying devices positioned at the downstream of the centering device, wherein the centering device comprises two symmetrically arranged positioning clamping plates, a movable rod is arranged on the back surface and the back surface of the two positioning clamping plates, a fixed frame movably sleeved on the surface of the movable rod is arranged in the reflow oven, an electric push rod is arranged on the fixed frame, the end part of the electric push rod is in transmission connection with one end of the movable rod, a buffer spring parallel to the movable rod is arranged between the fixed frame and the positioning clamping plates, and one end of the buffer spring is provided with a pressure sensor. The invention solves the problems of complex operation, inconvenient production and resource waste caused by the fact that the common reflow soldering furnace cannot realize the purpose of segmented transmission by arranging the centering device and the plurality of groups of conveying devices which are arranged in segments.
Description
Technical Field
The invention relates to the technical field of reflow furnaces, in particular to a segmented transmission system of a reflow furnace.
Background
The working principle of the reflow oven is that the solder is melted by high-temperature heating, so that the circuit board with the electronic device and the pins of the electronic device are welded, the reflow oven has the characteristics of high efficiency, high consistency, high yield and the like, and is widely applied to the field of circuit board production. When the reflow oven is used for soldering electronic devices, the production of different batches of electronic devices is different to different degrees due to the influence of various factors such as the thickness of solder, the number of pins, the size of a circuit board, the soldering temperature and the like.
The existing reflow soldering furnace is provided with heating areas and cooling areas with different numbers, the effects realized by different areas are different, and a transmission system of the reflow soldering furnace belongs to an integral transmission mode under general conditions. If the transmission speed of the reflow oven is fixed and unchanged, the set parameters of different areas need to be changed on the premise of meeting the working effects of different areas, so that when a product is changed, the parameters of each area need to be adjusted, the number of the areas is more, the change is more troublesome, and the production is more inconvenient.
In order to facilitate production, the common method is to use the same reflow oven as special as possible, so as to reduce the change of product types as possible, which needs to increase the number of reflow ovens and production lines, thus increasing production cost. Aiming at numerous defects, a reflow oven adopting a segmented transmission mode is adopted to solve the problem that numerous parameters of each area need to be changed. The effect of changing the welding time can be achieved by changing the transmission speed in each area through segmented transmission, so that the welding time is convenient to modify, and the influence on other functions is reduced.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a segmented transmission system of a reflow oven, which solves the problems that the purpose of segmented transmission cannot be realized by the common reflow oven, the work effect of different areas is adapted, a plurality of parameters are required to be changed to complete welding or the types of circuit boards produced by the same reflow oven are reduced, the operation is complex, the production is inconvenient and the resources are wasted.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a reflow soldering stove segmentation transmission system, is including setting up the centering device of circuit board entrance on the reflow soldering stove and being located a plurality of conveyor of group in centering device low reaches, the centering device includes the location cardboard that two symmetries set up, two location cardboard is provided with the movable rod from the face, the inside activity that is provided with of reflow soldering stove cup joints the mount on movable rod surface, install electric putter on the mount, and electric putter's tip is connected with the one end transmission of movable rod, be provided with the buffer spring parallel with the movable rod between mount and the location cardboard, and buffer spring's one end is provided with pressure sensor.
Conveyor sets up including the symmetry two adjustable shelves, two the opposite face of adjustable shelf is provided with vertical pivot along the direction of delivery equidistance, the top of pivot is provided with the delivery wheel, the delivery wheel includes action wheel and follower, action wheel and follower interval set up, the bottom of action wheel below pivot is provided with the conveying gear, the action wheel passes through the conveying drive mechanism transmission that conveying gear and adjustable shelf bottom set up and is connected.
The reflow soldering furnace is characterized in that two distance adjusting screw rods and four guide pillars which are perpendicular to two movable frames of each conveying device are arranged in the reflow soldering furnace, the four guide pillars are arranged in the vertical direction in an up-down symmetrical mode and are divided into two groups which are respectively arranged at the upstream and the downstream of the two distance adjusting screw rods, one end of each distance adjusting screw rod is provided with a distance adjusting gear, and the distance adjusting gears and the distance adjusting screw rods are in transmission connection with a distance adjusting driving mechanism.
Preferably, the positioning clamping plates comprise horizontal supporting platforms and vertical supporting side walls, and the supporting side walls of the two positioning clamping plates are smooth curved surfaces with gradually reduced openings from outside to inside.
Preferably, the support side wall is provided with a fluency strip antistatic wheel.
Preferably, the conveying wheel comprises a horizontally arranged circular disc and a clamping wheel at the top of the circular disc, and the radius difference between the circular disc and the clamping wheel is at least 2 mm.
Preferably, the side surface of the clamping wheel is provided with vertical anti-skid lines.
Preferably, the conveying driving mechanism comprises a conveying driving motor, a conveying driving shaft and a conveying driving gear, the conveying driving gear is arranged on an output shaft of the conveying driving motor and the conveying driving shaft, and the conveying driving gear on the conveying driving shaft is in meshing transmission with the conveying gear, the output shaft of the conveying driving motor and the conveying driving gear on the conveying driving shaft.
Preferably, the distance adjusting driving mechanism comprises a distance adjusting driving motor in transmission connection with one end of one of the distance adjusting screw rods on the conveying device, a distance adjusting driving shaft and a distance adjusting driving gear are arranged between the two distance adjusting screw rods, and the distance adjusting gears at the end parts of the two distance adjusting screw rods are respectively in transmission meshing with the distance adjusting driving gears at the two ends of the distance adjusting driving shaft.
Preferably, a movable gap is arranged between the movable rod and the electric push rod, and the movable gap is 1-2 mm.
Preferably, the surfaces of the distance adjusting screws are opposite to the thread directions of the corresponding positions of the two movable frames.
(III) advantageous effects
The invention provides a segmented transmission system of a reflow oven, which has the following beneficial effects:
according to the invention, by arranging the centering device and the plurality of groups of conveying devices which are arranged in sections, when the circuit board is input on the positioning clamping plate on the centering device, the working stroke of the electric push rods is driven by utilizing the signal of the pressure sensor, and the two electric push rods work simultaneously to ensure that the circuit boards with different sizes can be positioned on the axial line position conveyed by the reflow oven; the signal of the pressure sensor drives the distance adjusting driving motor at the same time, the distance adjusting screw rod is driven to rotate by the distance adjusting driving shaft and the distance adjusting driving gear, the two movable frames are driven to mutually approach or separate from circuit boards with different sizes, the conveying driving motor drives the conveying wheels to rotate by the conveying driving shaft, the conveying driving gear, the conveying gear and the rotating shaft, the conveying wheels arranged oppositely clamp and lift the circuit boards to continue conveying, the aim of conveying the circuit boards in a segmented variable speed mode can be achieved by controlling the rotating speed of the conveying driving motor in different stages, the effects of conveniently adjusting the parameters of the reflow oven, simplifying the production process, fully utilizing resources by one machine in multiple purposes are achieved, the problem that the common reflow oven can not realize segmented transmission is solved, the work effect of adapting to different regions needs to change a plurality of parameters to complete welding or reduce the types of circuit boards produced by the same reflow oven, further leading to the problems of complicated operation, inconvenient production and resource waste.
Drawings
FIG. 1 is a top view of the overall structure of the present invention;
FIG. 2 is a front view of the conveyor apparatus of the present invention showing the position of the spindle;
fig. 3 is a top view of the centering device of the present invention.
In the figure: 100. a centering device; 101. positioning a clamping plate; 101a, a support platform; 101b, a support sidewall; 101c, a fluent strip antistatic wheel; 102. a movable rod; 103. a fixed mount; 104. an electric push rod; 105. a buffer spring; 106. a pressure sensor; 200. a conveying device; 201. a movable frame; 202. a rotating shaft; 203. a delivery wheel; 203a and a driving wheel; 203b, driven wheels; 203A, a disc; 203B, a pinch roller; 204. a conveying gear; 205. a conveying drive mechanism; 205a, a conveying drive motor; 205b, a transport drive shaft; 205c, a conveying drive gear; 206. adjusting the pitch of the screw rod; 207. a guide post; 208. a pitch adjusting gear; 209. a distance adjusting driving mechanism; 209a, a distance adjusting driving motor; 209b, a pitch adjusting drive shaft; 209c, pitch drive gear.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 invention.
As shown in fig. 1-3, the present invention provides a technical solution: the utility model provides a reflow soldering stove segmentation transmission system, including setting up centering device 100 and a plurality of conveyor 200 of group that are located centering device 100 low reaches of circuit board entrance on the reflow soldering stove, centering device 100 includes the location cardboard 101 that two symmetries set up, two location cardboard 101 deviate from the face and are provided with movable rod 102, reflow soldering stove inside is provided with the activity and cup joints the mount 103 on movable rod 102 surface, install electric putter 104 on the mount 103, and electric putter 104's tip and movable rod 102's one end transmission are connected, be provided with the buffer spring 105 parallel with movable rod 102 between mount 103 and the location cardboard 101, and the one end of buffer spring 105 is provided with pressure sensor 106.
The conveying device 200 comprises two movable frames 201 which are symmetrically arranged, vertical rotating shafts 202 are arranged on opposite surfaces of the two movable frames 201 at equal intervals along the conveying direction, conveying wheels 203 are arranged at the tops of the rotating shafts 202, each conveying wheel 203 comprises a driving wheel 203a and a driven wheel 203b, the driving wheels 203a and the driven wheels 203b are arranged at intervals, conveying gears 204 are arranged at the bottoms of the rotating shafts 202 below the driving wheels 203a, and the driving wheels 203a are in transmission connection with conveying driving mechanisms 205 arranged at the bottoms of the movable frames 201 through the conveying gears 204.
Two distance adjusting screws 206 and four guide posts 207 which are vertical to the two movable frames 201 of each conveying device 200 are arranged in the reflow oven, the four guide posts 207 are arranged vertically and symmetrically and are divided into two groups which are respectively arranged at the upstream and the downstream of the two distance adjusting screws 206, one end of each distance adjusting screw 206 is provided with a distance adjusting gear 208, and the distance adjusting gear 208 and the distance adjusting screws 206 are in transmission connection with a distance adjusting driving mechanism 209.
As a technical optimization scheme of the invention, the positioning clamping plates 101 comprise horizontal supporting platforms 101a and vertical supporting side walls 101b, and the supporting side walls 101b of the two positioning clamping plates 101 are smooth curved surfaces with gradually reduced openings from outside to inside.
As a technical optimization scheme of the invention, a fluent strip antistatic wheel 101c is arranged on the supporting side wall 101 b.
As a technical optimization scheme of the invention, the driving wheel 203A and the driven wheel 203B comprise a disc 203A arranged horizontally and a pinch wheel 203B on the top of the disc 203A, and the radius difference between the disc 203A and the pinch wheel 203B is at least 2 mm.
As a technical optimization scheme of the invention, the side surface of the clamping wheel 203B is provided with vertical anti-slip lines.
As a technical optimization scheme of the present invention, the conveying driving mechanism 205 includes a conveying driving motor 205a, a conveying driving shaft 205b and a conveying driving gear 205c, the conveying driving gear 205c is disposed on the output shaft of the conveying driving motor 205a and the conveying driving shaft 205b, and the conveying driving gear 205c on the conveying driving shaft 205b is in meshing transmission with the conveying gear 204 and the conveying driving gear 205c on the output shaft of the conveying driving motor 205a and the conveying driving shaft 205 b.
As a technical optimization scheme of the present invention, the distance adjusting driving mechanism 209 includes a distance adjusting driving motor 209a in transmission connection with one end of one of the distance adjusting screws 206 on the conveying device 200, a distance adjusting driving shaft 209b and a distance adjusting driving gear 209c are arranged between the two distance adjusting screws 206, and the distance adjusting gears 208 at the end portions of the two distance adjusting screws 206 are respectively in transmission engagement with the distance adjusting driving gears 209c at the two ends of the distance adjusting driving shaft 209 b.
As a technical optimization scheme of the invention, a movable gap is arranged between the movable rod 102 and the electric push rod 104, and the movable gap is 1-2 mm.
As a technical optimization scheme of the present invention, the direction of the thread on the surface of the pitch adjusting screw 206 is opposite to the direction of the thread on the corresponding position of the two movable frames 201.
The working principle is as follows: when a circuit board is input on the positioning clamping plates 101 of the centering device 100, when the pressure sensor 106 receives a preset signal intensity which is larger than the preset signal intensity corresponding to the circuit board, the electric push rod 104 is driven to contract for a corresponding working stroke, the pressure sensor 106 receives a preset signal intensity which is smaller than the preset signal intensity corresponding to the circuit board, the electric push rod 104 is driven to extend for a corresponding working stroke, the two electric push rods 104 work simultaneously to drive the two positioning clamping plates 101 to be away from or close to each other simultaneously, and different circuit boards are ensured to be positioned on the axial line position conveyed by the reflow oven; signals of the pressure sensor 106 simultaneously drive a distance adjusting driving motor 209a, and the distance adjusting driving motor 209a drives the distance adjusting screw 206 to rotate through a distance adjusting driving shaft 209b and a distance adjusting driving gear 209c, so as to drive the two movable frames 201 to approach or separate from each other, thereby adapting to circuit boards with different sizes; the conveying driving motor 205a drives the conveying wheel 203 to rotate through the conveying driving shaft 205B, the conveying driving gear 205c, the conveying gear 204 and the rotating shaft 202, the oppositely arranged conveying wheel 203 is clamped through the clamping wheel 203B and continuously conveys the circuit board by lifting the circuit board with the disc 203A, and the purpose of conveying the circuit board in a segmented variable speed mode can be achieved by controlling the rotating speed of the conveying driving motor 205a in different stages.
In conclusion, the invention solves the problems of complex operation, inconvenient production and resource waste caused by the incapability of realizing the purpose of segmented transmission of the common reflow soldering furnace by arranging the centering device 100 and the plurality of groups of conveying devices which are arranged in segments 200.
It should be noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A reflow oven subsection transmission system comprises a centering device (100) arranged at an inlet of a circuit board on a reflow oven and a plurality of groups of conveying devices (200) positioned at the downstream of the centering device (100), and is characterized in that: the centering device (100) comprises two symmetrically-arranged positioning clamping plates (101), a movable rod (102) is arranged on the deviating surface of each of the two positioning clamping plates (101), a fixed frame (103) movably sleeved on the surface of the movable rod (102) is arranged in the reflow soldering furnace, an electric push rod (104) is installed on the fixed frame (103), the end part of the electric push rod (104) is in transmission connection with one end of the movable rod (102), a buffer spring (105) parallel to the movable rod (102) is arranged between the fixed frame (103) and the positioning clamping plates (101), and a pressure sensor (106) is arranged at one end of the buffer spring (105);
the conveying device (200) comprises two movable frames (201) which are symmetrically arranged, vertical rotating shafts (202) are arranged on opposite surfaces of the two movable frames (201) at equal intervals along the conveying direction, conveying wheels (203) are arranged at the tops of the rotating shafts (202), each conveying wheel (203) comprises a driving wheel (203 a) and a driven wheel (203 b), the driving wheels (203 a) and the driven wheels (203 b) are arranged at intervals, conveying gears (204) are arranged at the bottoms of the rotating shafts (202) below the driving wheels (203 a), and the driving wheels (203 a) are in transmission connection with conveying driving mechanisms (205) arranged at the bottoms of the movable frames (201) through the conveying gears (204);
the reflow soldering furnace is characterized in that two distance adjusting screw rods (206) and four guide posts (207) which are perpendicular to two movable frames (201) of each conveying device (200) are arranged in the reflow soldering furnace, the four guide posts (207) are vertically and symmetrically arranged and are divided into two groups which are respectively arranged at the upstream and the downstream of the two distance adjusting screw rods (206), one end of each distance adjusting screw rod (206) is provided with a distance adjusting gear (208), and the distance adjusting gears (208) and the distance adjusting screw rods (206) are in transmission connection with a distance adjusting driving mechanism (209).
2. The staged delivery system for a reflow oven of claim 1, wherein: the positioning clamping plates (101) comprise horizontal supporting platforms (101 a) and vertical supporting side walls (101 b), and the supporting side walls (101 b) of the two positioning clamping plates (101) are smooth curved surfaces with gradually reduced openings from outside to inside.
3. The staged delivery system for a reflow oven of claim 2, wherein: and a fluency strip antistatic wheel (101 c) is arranged on the supporting side wall (101 b).
4. The staged delivery system for a reflow oven of claim 1, wherein: the driving wheel (203A) and the driven wheel (203B) comprise a disc (203A) and a pinch wheel (203B), the disc (203A) is horizontally arranged, the top of the disc (203A) is provided with the pinch wheel (203B), and the radius difference between the disc (203A) and the pinch wheel (203B) is at least 2 mm.
5. The staged delivery system for a reflow oven of claim 4, wherein: the side surface of the clamping wheel (203B) is provided with vertical anti-skid lines.
6. The staged delivery system for a reflow oven of claim 1, wherein: the conveying driving mechanism (205) comprises a conveying driving motor (205 a), a conveying driving shaft (205 b) and a conveying driving gear (205 c), the conveying driving gear (205 c) is arranged on an output shaft of the conveying driving motor (205 a) and the conveying driving shaft (205 b), and the conveying driving gear (205 c) on the conveying driving shaft (205 b) is in meshing transmission with the conveying driving gear (204), the output shaft of the conveying driving motor (205 a) and the conveying driving gear (205 c) on the conveying driving shaft (205 b).
7. The staged delivery system for a reflow oven of claim 1, wherein: the distance adjusting driving mechanism (209) comprises a distance adjusting driving motor (209 a) in transmission connection with one end of one of the distance adjusting screws (206) on the conveying device (200), a distance adjusting driving shaft (209 b) and a distance adjusting driving gear (209 c) are arranged between the two distance adjusting screws (206), and the distance adjusting gears (208) at the end parts of the two distance adjusting screws (206) are respectively in transmission meshing with the distance adjusting driving gears (209 c) at the two ends of the distance adjusting driving shaft (209 b).
8. The staged delivery system for a reflow oven of claim 1, wherein: the connection between the movable rod (102) and the electric push rod (104) is provided with a movable gap, and the movable gap is 1-2 mm.
9. The staged delivery system for a reflow oven of claim 1, wherein: the surface of the distance adjusting screw rod (206) is opposite to the thread direction of the corresponding position of the two movable frames (201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110682980.8A CN113200285B (en) | 2021-06-21 | 2021-06-21 | Segmented transmission system of reflow oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110682980.8A CN113200285B (en) | 2021-06-21 | 2021-06-21 | Segmented transmission system of reflow oven |
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| Publication Number | Publication Date |
|---|---|
| CN113200285A true CN113200285A (en) | 2021-08-03 |
| CN113200285B CN113200285B (en) | 2022-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110682980.8A Active CN113200285B (en) | 2021-06-21 | 2021-06-21 | Segmented transmission system of reflow oven |
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| CN110775585A (en) * | 2019-11-08 | 2020-02-11 | 徐州市康恒机械有限公司 | Buffering transfer rack |
| CN210762914U (en) * | 2019-07-26 | 2020-06-16 | 无锡市华仔矽钢冲压有限公司 | Automatic deviation correcting device of motor stator and rotor production line |
| CN112607306A (en) * | 2021-02-20 | 2021-04-06 | 温州宇途机械科技有限公司 | Adjustable steel pipe conveying mechanism for scaffold machining and conveying method |
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2021
- 2021-06-21 CN CN202110682980.8A patent/CN113200285B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010040690A (en) * | 2008-08-04 | 2010-02-18 | Juki Corp | Substrate carrier device |
| JP2012235093A (en) * | 2011-04-22 | 2012-11-29 | Shibaura Mechatronics Corp | Transport device and transport method of substrate |
| CN110653266A (en) * | 2018-06-29 | 2020-01-07 | 宝山钢铁股份有限公司 | Position control system and method for induction heating process of magnesium alloy plate strip |
| CN109399302A (en) * | 2018-11-19 | 2019-03-01 | 顾爱爱 | A kind of deviation correcting device on film line |
| CN209744952U (en) * | 2019-03-20 | 2019-12-06 | 重庆市梁平区丰疆生物科技有限公司 | Intelligent control rolling drying device for organic fertilizer |
| CN210762914U (en) * | 2019-07-26 | 2020-06-16 | 无锡市华仔矽钢冲压有限公司 | Automatic deviation correcting device of motor stator and rotor production line |
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| CN112607306A (en) * | 2021-02-20 | 2021-04-06 | 温州宇途机械科技有限公司 | Adjustable steel pipe conveying mechanism for scaffold machining and conveying method |
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| CN113200285B (en) | 2022-09-27 |
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