Automatic blanking production line for reflow soldering

Abstract

The invention discloses an automatic blanking production line for reflow soldering, and relates to semiconductor processing equipment. Comprising a reflow soldering discharging device, a clamping mechanical arm and an automatic material basket stacking device. The reflow soldering discharging device comprises a first belt conveyor, a second belt conveyor, a material jacking linear driving mechanism, a lifting seat and a material turning plate. A batch number plate or a copper frame sequentially enters a first belt conveyor and a second belt conveyor and then is fed into a lifting seat, and at the moment, a material turning plate is in the original position and is consistent with a guide-in part; after the batch number plate or the copper frame is conveyed in place, a piston rod of the overturning air cylinder stretches out, the material overturning plate is overturned upwards, the batch number plate or the copper frame is vertically located between the material overturning plate and the vertical part, and the batch number plate or the copper frame is picked out through a mechanical arm on the side portion and put into a preset material basket. After the batch number plates or the copper frames are picked up, the material turning plate is restored to the original position to wait for entering of the next batch number plates or the copper frames, and the conveying and turning efficiency of the copper frames and the batch number plates is improved.

Description

Technical Field

[0001] The invention relates to semiconductor processing equipment, in particular to an automatic reflow soldering unloading production line. Background Art

[0002] After the power device chip is soldered on the copper frame, it needs to be reflowed in the reflow furnace to ensure the reliability of the soldering wire. According to the process requirements, during reflow, five copper frames are stacked and placed at the entrance of the reflow furnace. At the end of each batch, a batch number plate will be placed at the entrance to prevent mixing of materials. The stack of copper frames and batch number plates are transported to the exit in turn through the reflow furnace conveyor belt; after being transported to the exit of the reflow furnace, the stack of copper frames and batch number plates need to be manually transported vertically to the bottom of the robotic arm, and the stack of copper frames and batch number plates are clamped into the material basket by the robotic arm. This not only requires a lot of manual cooperation, but also the sweat during the transportation process affects the service life of the copper frame. In addition, the current setting method of the material basket is to lay several material baskets flat on the workbench in turn. After the material basket is full, the adjacent material basket is pushed to the material discharge station, which not only occupies a large area, but also is easy to be placed in a disorderly manner, resulting in problems such as missing the corresponding placement position. Summary of the invention

[0003] In view of the above problems, the present invention provides a reflow soldering automatic unloading production line with a sophisticated structure and improved efficiency of material (including copper frames and batch number plates) transmission, turning and stacking.

[0004] The technical solution of the present invention is: A reflow soldering automatic unloading production line, comprising a reflow soldering unloading device, a clamping manipulator and a material basket automatic stacking device; The reflow soldering unloading device comprises: A first belt conveyor, the first end of which is arranged at the discharge port of the reflow furnace; A second belt conveyor, arranged at the end of the first belt conveyor; The linear drive mechanism for lifting materials has a cylinder body which is vertically fixed on the frame; A lifting seat is detachably fixed on the top of the piston rod of the lifting linear drive mechanism through a support frame; the lifting seat is L-shaped, with an opening facing the feeding direction; There are several turning plates, which can be turned over and arranged in the lifting seat respectively, and the horizontal materials can be arranged in a vertical state through the turning of the turning plates; After the clamping manipulator grabs the material in a vertical state, it is transferred to the material basket automatic stacking device, which includes: A pair of linear synchronous pulley modules are provided and symmetrically fixed on the frame; A pair of linear driving mechanisms for basket translation are provided, which are respectively fixedly arranged on the corresponding linear synchronous pulley module sliders; A pair of material basket clamps are provided, which are respectively fixedly connected to the corresponding piston rods of the material basket translation linear drive mechanism; a plurality of clamps adapted to the material basket are provided at the front end of the material basket clamps; a loading area and a storage area are provided below the pair of material basket clamps; A pair of linear guide rail modules are provided, which are respectively vertically arranged in the corresponding loading area and storage area; a detachable and fixedly connected material basket seat is provided on the slider of the linear guide rail module, and the height of the top material basket is controlled by lifting and lowering the material basket seat.

[0005] Specifically, the support frame is detachably fixedly arranged on the top end of the piston rod of the lifting linear drive mechanism; The turning plate is turned over by a turning mechanism on the support frame.

[0006] Specifically, the flip mechanism includes a flip cylinder; The cylinder body of the turning cylinder is fixedly arranged on the supporting frame, and the turning arm is fixedly connected to the turning plate.

[0007] Specifically, the flipping mechanism includes a rotating shaft hinged on the support frame; A fixedly connected V-shaped connecting plate is provided on the rotating shaft; one end of the V-shaped connecting plate is fixedly connected to the turning plate; The support frame is provided with a turning cylinder hinged thereto, and the piston rod of the turning cylinder is hinged to one end of the V-shaped connecting plate.

[0008] Specifically, the introduction portion is provided with a plurality of limiting holes; The rotating shaft is provided with a plurality of fixed limiting arms, and the limiting arms are provided with limiting protrusions adapted to the limiting holes; after the turning plate is turned upwards and into position, the limiting protrusions are located in the limiting holes.

[0009] Specifically, the lifting seat includes a transversely arranged introduction portion and a vertically arranged vertical portion; The inlet portion is provided with a plurality of hollow installation positions for installing the turning plate; The vertical portion is provided with a plurality of grabbing holes with top openings.

[0010] Specifically, the front end of the turning plate is bent downward.

[0011] Specifically, the front end of the introduction portion is bent downward.

[0012] Specifically, a material blocking mechanism is provided in the first belt conveyor; the material blocking mechanism comprises: A material blocking cylinder, the cylinder body of which is vertically fixedly arranged in the first belt conveyor; The material blocking plate is fixedly arranged on the top of the material blocking cylinder, and a pair of upwardly extending blocking fingers are arranged on the top surface; the blocking fingers move up and down between the belts of the first belt conveyor.

[0013] Specifically, a pair of symmetrically arranged pushing mechanisms are provided in the first belt conveyor; the pushing mechanisms include: A push cylinder, fixedly arranged on the side support frame of the first belt conveyor; A push plate is fixedly arranged at the piston rod end of the push cylinder, and is synchronously pushed toward the middle of the first belt conveyor through a pair of push plates, so that the push plate is located in the middle of the first belt conveyor.

[0014] The reflow soldering unloading device of the present invention comprises a first belt conveyor, a second belt conveyor, a linear driving mechanism for lifting materials, a lifting seat and a flipping plate. After the batch number plate or copper frame enters the first belt conveyor and the second belt conveyor in turn, it is sent into the lifting seat. At this time, the flipping plate is in its original position and is consistent with the introduction part; after the batch number plate or copper frame is transferred to the right position, the piston rod of the flipping cylinder extends to flip the flipping plate upward, and the batch number plate or copper frame is vertically located between the flipping plate and the vertical part. The batch number plate or copper frame is picked up by the side manipulator and placed in a preset material basket. After the batch number plate or copper frame is picked up, the flipping plate returns to its original position and waits for the next batch number plate or copper frame to enter, thereby improving the efficiency of copper frame and batch number plate transmission and flipping.

[0015] The automatic stacking device for material baskets of the present invention comprises a linear synchronous pulley module, a material basket translation linear drive mechanism, a material basket clamp and a material basket seat respectively arranged in the loading area and the storage area, and the material basket seat moves up and down through a linear guide module. The empty material baskets are placed on the material basket seat in the loading area from bottom to top; the top material basket is lifted to the set position, a pair of material basket clamps clamp the material basket, and the material basket seat in the loading area descends to separate the top material basket from the second top material basket. The top material basket waits for the robot to release the material. After the top material basket is placed, a pair of material basket clamps translate the top material basket to the storage area for storage. It has the advantages of compact structure, improved stacking efficiency, and reduced stacking space. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural diagram of the assembly state of the reflow soldering unloading device and the robot; Figure 2 It is a schematic diagram of the three-dimensional structure of the reflow soldering unloading device; Figure 3 It is a schematic diagram of the three-dimensional structure when the copper frame and batch number plate are placed on the reflow soldering unloading device; Figure 4 This is a three-dimensional structure diagram of the assembly state of the lifting linear drive mechanism, lifting seat and flip plate Figure 1 ; Figure 5 This is a three-dimensional structure diagram of the assembly state of the lifting linear drive mechanism, lifting seat and flip plate Figure 2 ; Figure 6 It is a schematic diagram of the three-dimensional structure of the rotating shaft in the assembled state; Figure 7 It is a three-dimensional structural schematic diagram of the clamping claw mechanism; Figure 8 It is a three-dimensional structural schematic diagram of the state of being combined with the reflow soldering unloading device; Fig. 9 It is a schematic diagram of the three-dimensional structure of the automatic palletizing device for the material basket in the assembled state; Fig.10 This is a three-dimensional structural diagram of a pair of linear synchronous pulley modules in assembly state; Fig.11 It is a three-dimensional structural diagram of the assembly state of the linear guide module and the basket seat; Fig.12 This is a schematic diagram of the three-dimensional structure of the material basket seat in the assembled state; Fig.13 It is a schematic diagram of the three-dimensional structure of the basket; In the figure, 110 is the first belt conveyor. 120 is the second belt conveyor, 130 is a linear drive mechanism for ejecting materials. 140 is a lifting seat, 1401 is an introduction part, 1402 is a vertical part, 141 is a support frame, 150 is a turning plate, 151 is a rotating shaft, 1511 is a V-shaped connecting plate, 1512 is a limiting arm, 160 is the flip cylinder, 170 is the material blocking mechanism. 180 is a material pushing mechanism, 181 is a material pushing cylinder, and 182 is a material pushing plate; 210 is the base, 220 is a clamped linear drive mechanism. 230 is a clamping claw linear drive mechanism, 240 is a clamping mechanism, 241 is a lining plate, 242 is a front clamping jaw, 2421 is a notch, 243 is a rear clamping jaw, 251 is a primary rotating arm, 252 is a secondary rotating arm; 310 is a linear synchronous pulley module, 320 is a basket translation linear drive mechanism, 330 is a basket clamp, 331 is a clamp, 340 is a loading area, 350 is a storage area, 360 is a linear guide module, 370 is a basket seat, 380 is a material basket, 381 is an outer frame, 382 is an inner partition frame, 3821 is a top arm, 3822 is a connecting rod, and 3823 is a supporting block. DETAILED DESCRIPTION

[0017] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0018] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] like Figure 1-6 As shown, the reflow soldering unloading device comprises: A first belt conveyor 110, the first end of which is arranged at the discharge port of the reflow furnace; A second belt conveyor 120, disposed at the end of the first belt conveyor 110; The lifting material linear drive mechanism 130, the cylinder body is vertically fixed on the frame; The lifting seat 140 is detachably fixedly arranged on the top of the piston rod of the lifting linear drive mechanism 130 through the support frame 141; the lifting seat 140 is an L-shaped structure, and the opening faces the feeding direction; the lifting linear drive mechanism 130 of this case includes a lifting cylinder, a lifting oil cylinder or a lifting electric push rod; the support frame 141 is detachably fixedly arranged on the top of the piston rod of the lifting linear drive mechanism 130; There are a plurality of flipping plates 150 , which are flippably arranged in the lifting seat 140 , and the horizontal materials are arranged in a vertical state by flipping the flipping plates 150 . The flipping plates 150 are flipped by the flipping mechanism on the support frame 141 .

[0021] The flip mechanism case lists two implementation methods: Embodiment 1: The turning mechanism includes a turning cylinder; The cylinder body of the flip cylinder is fixedly arranged on the support frame 141 , and the flip arm is fixedly connected to the flipping plate 150 .

[0022] Embodiment 2: The flipping mechanism includes a rotating shaft 151 hinged on the support frame 141; The rotating shaft 151 is provided with a fixedly connected V-shaped connecting plate 1511; one end of the V-shaped connecting plate 1511 is fixedly connected to the turning plate 150; The support frame 141 is provided with a flip cylinder 160 hinged thereto, and a piston rod of the flip cylinder 160 is hinged to one end of the V-shaped connecting plate 1511 .

[0023] The lifting seat structure is further described: The lifting seat 140 includes a transversely arranged introduction portion 1401 and a vertically arranged vertical portion 1402; The introduction portion 1401 is provided with a plurality of hollow installation positions for installing the turning plate 150; The vertical portion 1402 is provided with a plurality of grab holes with top openings.

[0024] The introduction part 1401 is provided with a plurality of limiting holes; A plurality of fixed limiting arms 1512 are provided on the rotating shaft 151 , and limiting protrusions adapted to the limiting holes are provided on the limiting arms 1512 ; after the turning plate 150 is turned upwards to a position, the limiting protrusions are located in the limiting holes.

[0025] The front end (material pre-contact end) of the material turning plate 150 is bent downward to facilitate the material to smoothly enter the material turning plate 150 without obstruction.

[0026] The front end of the introduction portion 1401 is bent downward.

[0027] Further optimize the transmission stability of the first belt conveyor 110 and the second belt conveyor 120: The first belt conveyor 110 and the second belt conveyor 120 are respectively provided with a material blocking mechanism 170; The material blocking mechanism 170 includes: A material blocking cylinder, the cylinder body of which is vertically fixedly disposed in the first belt conveyor 110; The material blocking plate is fixedly arranged at the top end of the material blocking cylinder, and a pair of upwardly extending blocking fingers are arranged on the top surface; the blocking fingers move up and down between the belts of the first belt conveyor 110 .

[0028] The material blocking mechanism 170 is used to block the batch number plate or copper frame, so as to facilitate the orderly entry into the next workstation, and at the same time facilitate the material pushing mechanism to correct the posture of the batch number plate or copper frame, thereby improving the stability and reliability of the device operation.

[0029] A pair of symmetrically arranged pushing mechanisms 180 are respectively provided in the first belt conveyor 110 and the second belt conveyor 120; the pushing mechanisms 180 include: The push cylinder 181 is fixedly mounted on the side support frame of the first belt conveyor 110; The push plate 182 is fixedly arranged at the piston rod end of the push cylinder 181 , and is synchronously pushed toward the middle of the first belt conveyor 110 by a pair of the push plates 182 , so that the push plate 182 is located in the middle of the first belt conveyor 110 .

[0030] After the batch number plate or copper frame enters the first belt conveyor 110 and the second belt conveyor 120 in sequence, it is sent into the lifting seat 140. At this time, the flipping plate 150 is in its original position, which is consistent with the introduction part 1401. After the batch number plate or copper frame is delivered to the position, the piston rod of the flipping cylinder 160 extends to flip the flipping plate 150 upward. The batch number plate or copper frame is vertically located between the flipping plate 150 and the vertical part 1402. The batch number plate or copper frame is picked up by the side manipulator and placed in the preset material basket. After the batch number plate or copper frame is picked up, the flipping plate 150 returns to its original position and waits for the next batch number plate or copper frame to enter.

[0031] like Figure 7-8 As shown, the copper frame clamping manipulator includes: A base 210, the bottom of which is detachably fixed on the frame, and the top of which is provided with a first motor; A primary rotating arm 251, one end of which is fixedly connected to the rotating shaft of the first motor; The secondary rotating arm 252 is rotatably arranged on the top of the other end of the primary rotating arm 251 through a second motor; the second motor is fixedly arranged in the secondary rotating arm 252, and its rotating rod is fixedly connected to the primary rotating arm 251; A clamped linear drive mechanism 220 is vertically fixed on the secondary rotating arm 252; The clamping mechanism 240 is detachably fixedly arranged on the piston rod end of the clamping linear drive mechanism 220; the clamping mechanism 240 includes: The lining plate 241 is detachably fixed to the piston rod end of the clamping linear drive mechanism 220; A front clamping claw 242 is vertically detachably fixedly disposed at the front end below the lining plate 241; The clamping claw linear drive mechanism 230 is horizontally fixedly arranged at the end below the lining plate 241; the clamping linear drive mechanism 220 includes a clamping cylinder, a clamping oil cylinder or a clamping electric push rod.

[0032] The rear clamping jaw 243 is fixedly connected to the piston rod end of the clamping jaw linear drive mechanism 230, and the distance between the rear clamping jaw 243 and the front clamping jaw 242 is adjusted by the extension and contraction control of the clamping jaw linear drive mechanism 230. The clamping jaw linear drive mechanism 230 includes a clamping jaw cylinder, a clamping jaw oil cylinder or a clamping jaw electric push rod.

[0033] The cross section of the lining plate 241 is L-shaped.

[0034] The front clamping jaw 242 and the rear clamping jaw 243 are respectively in a plate-shaped structure.

[0035] The front clamping jaw 242 and the rear clamping jaw 243 are respectively provided with a plurality of bottom hollowed-out notches 2421. The grabbing holes of the vertical portion 1402 on the lifting seat 140 are matched with the notches 2421 of the front clamping jaw 242 and the rear clamping jaw 243, and are staggered for easy material clamping.

[0036] The base 210 is detachably fixed on the frame by bolts, and the first motor on the base 210 drives the primary rotating arm 251 and the secondary rotating arm 252 to rotate, so as to realize the rotation of the clamp mechanism 240 from the grabbing station to the material basket station. When the clamp mechanism 240 is transferred to the grabbing station, the front clamp 242 and the rear clamp 243 are opened to form an opening adapted to the copper frame or the batch number plate, the piston rod of the clamping linear drive mechanism 220 is lowered to the set position, the front clamp 242 and the rear clamp 243 clamp the copper frame or the batch number plate, the piston rod of the clamping linear drive mechanism 220 is retracted, and the primary rotating arm 251 and the secondary rotating arm 252 are rotated to the top of the material basket, and the copper frame or the batch number plate is placed in the corresponding position in the material basket by the lowering of the piston rod of the clamping linear drive mechanism 220.

[0037] like Figure 9-13 As shown, the automatic basket stacking device includes: A pair of linear synchronous pulley modules 310 are provided and symmetrically fixed on the frame; A pair of basket translation linear drive mechanisms 320 are provided, which are respectively fixedly arranged on the sliders of the corresponding linear synchronous pulley module 310; The basket translation linear drive mechanism 320 includes a basket translation cylinder, a basket translation oil cylinder or a basket translation electric push rod.

[0038] A pair of material basket translation linear drive mechanisms 320 are connected via a transmission shaft, and the transmission shaft is respectively connected to the driven ends of a pair of material basket translation linear drive mechanisms. The motor drive on one of the material basket translation linear drive mechanisms realizes synchronous movement of the sliders on the two material basket translation linear drive mechanisms.

[0039] A pair of material basket clamps 330 are provided, which are respectively fixedly connected to the corresponding piston rods of the material basket translation linear drive mechanism 320; a plurality of clamps 331 adapted to the material basket are provided at the front end of the material basket clamps 330; a loading area 340 and a storage area 350 are provided below the pair of material basket clamps 330; A pair of linear guide rail modules 360 are vertically arranged in the corresponding loading area 340 and storage area 350 respectively; a detachable and fixedly connected material basket seat 370 is provided on the slider of the linear guide rail module 360, and the height of the top material basket 380 is controlled by lifting and lowering the material basket seat 370.

[0040] The empty baskets 380 are placed on the basket seats 370 of the loading area 340 from bottom to top; the top basket 380 is lifted to the set position, a pair of basket clamps 330 clamp the basket 380, and the basket seat 370 of the loading area 340 descends to separate the top basket 380 from the sub-top basket 380 (the basket connected below the top basket).

[0041] The top material basket 380 waits for the robot to release the material. After the top material basket 380 is placed, a pair of material basket clamps 330 translate the top material basket 380 to the storage area 350. The material basket seat 370 in the storage area 350 rises to a height that matches the top material basket 380. The pair of material basket clamps 330 are retracted respectively to store the material basket 380 on the material basket seat 370 in the storage area 350.

[0042] After the material basket 380 is placed, the pair of material basket clamps 330 return to the loading area 340. After the material basket seat 370 of the loading area 340 raises the secondary material basket to a set height, the pair of material basket clamps 330 complete the clamping and repeat the above steps.

[0043] The basket 380 includes: Outer frame 381; The inner partition frame 382 is fixedly arranged in the outer frame 381; the inner partition frame 382 is provided with a plurality of placement positions with top openings for placing copper frames or batch number plates.

[0044] A pair of top arms 3821 for supporting the top basket 380 are respectively provided at both ends of the inner partition frame 382; A connecting rod 3822 is provided between the pair of top arms 3821 near the bottom.

[0045] A detachably fixed support block 3823 is provided on the top of the top arm 3821; An arc groove adapted to the connecting rod 3822 is provided on the top of the support block 3823. The pair of arc grooves are used to place the connecting rod 3822 to improve the stability of the placement of the upper material basket 380.

[0046] Regarding the contents disclosed in this case, there are a few points that need to be explained: (1) The drawings of the embodiments disclosed in this case only involve the structures involved in the embodiments disclosed in this case. Other structures can refer to the general design; (2) In the absence of conflict, the embodiments and features of the embodiments disclosed in this case may be combined with each other to obtain new embodiments; The above are only specific implementation methods disclosed in this case, but the protection scope of the present disclosure is not limited thereto. The protection scope disclosed in this case should be based on the protection scope of the claims.

Claims

1. A reflow soldering automatic unloading production line, characterized in that: It includes a reflow soldering unloading device, a clamping robot and an automatic basket stacking device; The reflow soldering unloading device comprises: A first belt conveyor (110), the head end of which is arranged at the discharge port of the reflow furnace; A second belt conveyor (120) is arranged at the end of the first belt conveyor (110); A material ejection linear drive mechanism (130), the cylinder of which is vertically fixed on a frame; A lifting seat (140) is detachably fixedly arranged on the top end of the piston rod of the lifting linear drive mechanism (130) via a support frame (141); the lifting seat (140) is an L-shaped structure, with an opening facing the feeding direction; A plurality of turning plates (150) are provided, each of which can be turned over and arranged in the lifting seat (140). By turning over the turning plates (150), horizontal materials can be arranged in a vertical state; After the clamping manipulator grabs the material in a vertical state, it is transferred to the material basket automatic stacking device, which includes: A pair of linear synchronous pulley modules (310) are provided and symmetrically fixedly arranged on the frame; A pair of basket translation linear drive mechanisms (320) are provided, each of which is fixedly mounted on a corresponding slider of the linear synchronous pulley module (310); A pair of material basket clamping jaws (330) are provided, each of which is fixedly connected to a corresponding piston rod of the material basket translation linear drive mechanism (320); a plurality of clamping jaws (331) adapted to the material basket are provided at the front end of the material basket clamping jaws (330); a loading area (340) and a storage area (350) are provided below the pair of material basket clamping jaws (330); A pair of linear guide rail modules (360) are provided, which are respectively vertically arranged in the corresponding loading area (340) and storage area (350); a detachable and fixedly connected material basket seat (370) is provided on the slider of the linear guide rail module (360), and the height of the top material basket (380) is controlled by lifting and lowering the material basket seat (370).

2. The reflow soldering device according to claim 1, characterized in that: The support frame (141) is detachably fixedly arranged on the top end of the piston rod of the ejection linear drive mechanism (130); The turning plate (150) performs a turning movement through a turning mechanism on the support frame (141).

3. The reflow soldering device according to claim 1, characterized in that: The flipping mechanism comprises a flipping cylinder; The cylinder body of the turning cylinder is fixedly arranged on the support frame (141), and the turning arm is fixedly connected to the turning plate (150).

4. The reflow soldering device according to claim 1, characterized in that: The turning mechanism comprises a rotating shaft (151) hinged on the supporting frame (141); A V-shaped connecting plate (1511) is fixedly connected to the rotating shaft (151); one end of the V-shaped connecting plate (1511) is fixedly connected to the turning plate (150); The support frame (141) is provided with a tilting cylinder (160) hinged thereto, and a piston rod of the tilting cylinder (160) is hinged to one end of a V-shaped connecting plate (1511).

5. The reflow soldering device according to claim 4, characterized in that: The lifting seat (140) comprises a transversely arranged introduction portion (1401) and a vertically arranged vertical portion (1402); The introduction portion (1401) is provided with a plurality of hollow installation positions for installing the turning plate (150); The vertical portion (1402) is provided with a plurality of grabbing holes with top openings.

6. The reflow soldering device according to claim 5, characterized in that: The introduction portion (1401) is provided with a plurality of limiting holes; The rotating shaft (151) is provided with a plurality of fixed limiting arms (1512), and the limiting arms (1512) are provided with limiting protrusions adapted to the limiting holes; after the turning plate (150) is turned upwards into position, the limiting protrusions are located in the limiting holes.

7. The reflow soldering device according to claim 1, characterized in that: The front end of the turning plate (150) is bent downward.

8. The reflow soldering device according to claim 6, characterized in that: The front end of the introduction portion (1401) is bent downward.

9. The reflow soldering device according to claim 1, characterized in that: A material blocking mechanism (170) is provided in the first belt conveyor (110); the material blocking mechanism (170) comprises: A material-blocking cylinder, the cylinder body of which is vertically fixedly arranged in the first belt conveyor (110); A material blocking plate is fixedly arranged at the top end of the material blocking cylinder, and a pair of blocking fingers extending upward are provided on the top surface; the blocking fingers move up and down between the belts of the first belt conveyor (110).

10. The reflow soldering device according to claim 1, characterized in that: A pair of symmetrically arranged material pushing mechanisms (180) are provided in the first belt conveyor (110); the material pushing mechanisms (180) include: A push cylinder (181) fixedly mounted on a side support frame of the first belt conveyor (110); A push plate (182) is fixedly arranged at the piston rod end of the push cylinder (181), and is synchronously pushed toward the middle of the first belt conveyor (110) by a pair of push plates (182), so that the push plate (182) is located in the middle of the first belt conveyor (110).

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