Tape winding type carrier tape operation system

Abstract

The invention relates to the field of intelligent card semiconductor packaging, and discloses a tape winding type carrier tape operation system which comprises a first conveying structure, a second conveying structure and a lifting adsorption structure, the first conveying structure and the second conveying structure are arranged in a spaced mode in the conveying direction, and the lifting adsorption structure is installed between the first conveying structure and the second conveying structure; the first conveying structure, the lifting adsorption structure and the second conveying structure are combined to form a conveying channel used for conveying the tape winding type carrier tape, and the lifting adsorption structure has a first working state for lifting the tape winding type carrier tape to a first working position; and the lifting adsorption structure has a second working state of descending the tape winding type carrier tape to a second working position. By means of the arrangement, when the tape winding type carrier tape is conveyed in a stepping mode, continuous friction of the surface of the fixed rail does not exist at the bottom of the tape winding type carrier tape, damage to the bottom face of the tape winding type carrier tape is avoided, and the yield is increased.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of smart card semiconductor packaging, and in particular to a reel tape carrier operation system. BACKGROUND

[0002] Solder paste printing is a core process of surface mount technology (SMT), which precisely coats solder paste on PCB pads through steel mesh or jet printing technology, directly affecting the welding quality and repair rate of electronic products. The process uses automated equipment to complete steps such as feeding, positioning, calibration, and printing, and the equipment includes a vision positioning system and a lifting mechanism to improve precision.

[0003] However, the related solder paste printing device for strip material usually includes a conveying mechanism for conveying the material along the conveying direction and a track for providing printing support for the material. During the transportation of the strip material, the bottom surface of the reel tape is prone to continuous friction with the track, which may cause damage to the bottom surface of the material with a high probability. This not only affects the appearance of the product, but also may cause circuit damage due to scratches, ultimately resulting in poor electrical performance of the chip and a decrease in the yield. SUMMARY

[0004] Therefore, the present application provides a reel tape carrier operation system to solve the problem that the related solder paste printing device for strip material usually includes a conveying mechanism for conveying the material along the conveying direction and a track for providing printing support for the material. During the transportation of the strip material, the bottom surface of the reel tape is prone to continuous friction with the track, which may cause damage to the bottom surface of the material with a high probability. This not only affects the appearance of the product, but also may cause circuit damage due to scratches, ultimately resulting in poor electrical performance of the chip and a decrease in the yield.

[0005] In a first aspect, the present application provides a reel tape carrier operation system, comprising:

[0006] A first conveying structure and a second conveying structure are arranged at intervals along the conveying direction.

[0007] A lifting and adsorbing structure is installed between the first conveying structure and the second conveying structure. The first conveying structure, the lifting and adsorbing structure, and the second conveying structure combine to form a conveying channel for conveying the reel tape carrier.

[0008] The lifting and adsorbing structure has a first working state for lifting the reel tape carrier to a first working position, and a second working state for lowering the reel tape carrier to a second working position.

[0009] Beneficial effects: in the initial state of the tape carrier tape operation system, the lifting adsorption structure is in the second working position at the low position, the first conveying structure, the second conveying structure and the lifting adsorption structure form a continuous conveying channel, the tape carrier tape is suspended on the lifting adsorption structure to avoid friction between the surface of the tape carrier tape and the lifting adsorption structure, and the second conveying structure is used for conveying the tape carrier tape to drive the tape carrier tape to move along the conveying direction. When the tape carrier tape located in the lifting adsorption structure needs to be printed with solder paste, the tape carrier tape is first laid in the conveying channel, the lifting adsorption structure drives the tape carrier tape to rise to the first working position, the tape carrier tape is taut, and the lifting adsorption structure tightly adsorbs the tape carrier tape on the surface of the lifting adsorption structure, an external printing mechanism prints the upper surface of the tape carrier tape with solder paste, the first conveying structure assists the lifting adsorption structure to pull and stretch the tape carrier tape to make it taut, and the lifting adsorption structure can also adsorb and fix the tape carrier tape on the upper surface, so that the offset phenomenon generated in the solder paste printing process is further avoided, the displacement of the tape carrier tape in the printing process is avoided, and stable support is provided for printing. After printing is completed, the lifting adsorption structure is closed and the vacuum is turned off, and the lifting adsorption structure is lowered to make the tape carrier tape on the lifting adsorption structure return to the suspended state. The second conveying structure drives the tape carrier tape to continue to move along the conveying direction. The above steps are repeated to realize continuous solder paste printing of the tape carrier tape. Through the above setting, when the tape carrier tape is stepped, the bottom of the tape carrier tape will not be continuously rubbed against the surface of the fixed track, so that damage to the bottom surface of the tape carrier tape is avoided, and the yield is improved.

[0010] In an alternative embodiment, the lifting adsorption structure comprises:

[0011] Two limiting members are provided, and the two limiting members are arranged in a direction perpendicular to the conveying direction; the two ends of the limiting member are connected with the first conveying structure and the second conveying structure, respectively;

[0012] An adsorption member is installed between the two limiting members;

[0013] A driving member is connected with the adsorption member at the output end.

[0014] In an alternative embodiment, the adsorption member comprises: an adsorption part and a lifting part; the adsorption part is installed at the top end of the lifting part, and the adsorption end of the adsorption part is adapted to face upwards; and the driving member is installed at the bottom of the lifting part;

[0015] The width of the lifting part is greater than the distance between the two limiting members.

[0016] In an alternative embodiment, the lower limit position of the movable upper surface of the lifting part is lower than the lowest position of the movable bottom surface of the limiting member.

[0017] In an alternative embodiment, the lifting adsorption structure further comprises:

[0018] A track bar is installed inside the upper surface of the limiting member;

[0019] A mounting portion is installed outside the track bar, and the vertical distance between the upper surface of the mounting portion and the bottom surface of the limiting member is greater than the vertical distance between the upper surface of the track bar and the bottom surface of the limiting member;

[0020] A limiting plate is horizontally installed on the upper surface of the mounting portion;

[0021] The limiting plate and the track bar have a gap therebetween, and the side edge of the reel tape carrier tape is arranged between the track bar and the limiting plate.

[0022] Beneficial effects: When the initial state of the reel tape carrier tape operation system, the suction member and the limiting member are located at the lowermost point of their respective activity ranges. The reel tape carrier tape is placed between the track bar and the limiting plate. When lifting is needed, the driving member pushes the lifting portion to move upward. In the previous period, the lifting portion does not reach the lower limit of the activity position of the limiting member, and the limiting member, the first conveying structure and the second conveying structure remain stationary. With continuous rising, the lifting portion contacts the bottom of the limiting member on both sides, ensuring vertical guidance. The lifting portion pushes the suction portion, the limiting member, the first conveying structure and the second conveying structure to continue moving upward until the suction portion and the limiting member reach the highest point of the activity position. The suction portion lifts the reel tape carrier tape, and the suction end of the suction portion applies negative pressure upward, and the carrier tape is tightly attached to the upper surface of the suction portion. The external printing mechanism performs solder paste printing on the specific position of the upper surface of the reel tape carrier tape between the two limiting members.

[0023] When the printing is completed and reset, the suction portion is closed, the reel tape carrier tape is separated from the suction surface, and the driving member pushes the lifting portion to move downward. The suction portion, the limiting member, the first conveying structure and the second conveying structure all move downward, but do not reach the lowermost point of the activity position of the limiting member. With continuous downward movement, the limiting member moves downward to the lowermost point of the activity position of the limiting member, ready to disengage from the lifting portion. The lifting portion continues to move downward, the limiting member disengages from the lifting portion, the limiting member, the first conveying structure and the second conveying structure stop descending, and the suction member continues to move downward until it moves to the lower limit of the activity position of the suction member. The suction member and the limiting member are located at the lowermost point of their respective activities, and the reel tape carrier tape returns to the suspended conveying state.

[0024] It should be noted that when the adsorption part and the limiting part reach the active process, no matter whether they are in the highest position or the lowest position, the side edge of the tape carrier ribbon is always in the gap between the track strip, the mounting part and the limiting plate, so as to eliminate the transverse displacement space. When the adsorption part and the limiting part are both in the highest position, the adsorption part lifts the tape carrier ribbon, makes it tight, and adsorbs and fixes it on the upper surface, so as to realize secondary stability and further avoid the deviation phenomenon generated in the solder paste printing process. When the adsorption part and the limiting part are both in the lowest position, the upper surface of the adsorption part is lower than the upper surface of the track strip, so that the adsorption part is separated from the tape carrier ribbon, the tape carrier ribbon can be started to be conveyed, so as to avoid the contact between the tape carrier ribbon and the top surface of the adsorption part in the conveying process, so as to cause the scratch and scuff of the metal surface below the tape carrier ribbon.

[0025] In an alternative embodiment, the limiting part is provided with an adjusting groove along the conveying direction;

[0026] The lifting adsorption structure further comprises:

[0027] The first avoiding wheel is installed on the inner side of the limiting part and is arranged on the side of the track strip close to the second conveying structure;

[0028] The second avoiding wheel is installed in the adjusting groove;

[0029] The side edge of the tape carrier ribbon is arranged between the first avoiding wheel and the second avoiding wheel.

[0030] In an alternative embodiment, the first conveying structure comprises:

[0031] The first conveying track is connected with the limiting part, and a first through hole is formed in the first conveying track;

[0032] The first motor is installed on the first conveying track through a first mounting seat;

[0033] The first mounting frame is connected with the first conveying track;

[0034] The damping driving wheel and the damping driven wheel are arranged in an up-down mode at the position of the first through hole, and the damping driving wheel and the damping driven wheel are both installed on the first mounting frame; the damping driving wheel is connected with the output end of the first motor.

[0035] Beneficial Effect: The output end of the first motor transmits a constant damping torque toward the damping driving wheel. The damping driving wheel rotates at a fixed torque, driving the tape carrier at that position to move away from the limiter, ensuring that the tape carrier is tensioned during use. The damping driven wheel below presses the tape carrier against the damping driving wheel, preventing relative displacement between the tape carrier and the surface of the damping driving wheel, preventing the driving wheel from slipping and ensuring the stability of the torque and tensioning effect. The surfaces of the damping driving wheel and the damping driven wheel are made of flexible materials to prevent them from scratching the tape carrier.

[0036] In an optional embodiment, the second conveying structure includes:

[0037] a second conveying track, the second conveying track being connected to the limiting member, and having a second through hole formed therein;

[0038] a second motor, the second motor being mounted on the second conveying track via a second mounting base;

[0039] A driving wheel is connected to the second motor, and a plurality of driving teeth are arranged on the driving wheel along the circumference; at least a portion of the driving wheel passes through the second through hole to the top of the second conveying track.

[0040] In an optional embodiment, the second conveying structure includes: a cover plate, the cover plate is hinged on the second mounting seat, and the cover plate can cover the top of the driving wheel.

[0041] Beneficial Effects: Through the above arrangement, the second conveyor structure functions as a transport for the reel-type carrier tape. A reduction gearbox is also mounted on the output end of the second motor. The second motor, through the reduction gearbox, drives the drive wheel to rotate, passing through the second through-hole to the upper portion of the second conveyor track, where the reel-type carrier tape is inserted into the positioning holes on both sides of the drive wheel. This in turn drives the reel-type carrier tape. As the drive wheel rotates continuously, the drive teeth on the drive wheel drive the reel-type carrier tape continuously. When the stopper and suction element are at their lowest position, the second conveyor structure activates, driving the reel-type carrier tape. When the stopper and suction element are at their upper limit, the second conveyor structure stops, allowing the external solder paste printing mechanism to print on the reel-type carrier tape. Each movement is a fixed step length, ensuring the precise positioning of the reel-type carrier tape at each step. Before the second conveyor structure transports the reel, a cover can be opened to place the reel-type carrier tape. During operation, the cover needs to be closed over the reel-type carrier tape to prevent it from disengaging from the drive teeth on the drive wheel.

[0042] In an optional embodiment, the ends of the first conveying track and the second conveying track away from the lifting adsorption structure are both arc-shaped tracks. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the specific embodiments of the present application or the prior art, the drawings required to be used in the specific embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0044] Figure 1 The overall structure schematic diagram of the tape carrier package operation system in the embodiment of the present application is shown in the figure.

[0045] Figure 2 The overall structure schematic diagram of the lifting adsorption structure in the embodiment of the present application is shown in the figure.

[0046] Figure 3 The structure schematic diagram of the lifting adsorption structure close to one end of the second conveying structure in the embodiment of the present application is shown in the figure.

[0047] Figure 4 The side sectional view of the lifting adsorption structure in the embodiment of the present application is shown in the figure.

[0048] Figure 5 The structure schematic diagram of the first conveying structure in the embodiment of the present application is shown in the figure.

[0049] Figure 6 The installation schematic diagram of the damping driving wheel and the damping driven wheel in the first conveying structure in the embodiment of the present application is shown in the figure.

[0050] Figure 7 The structure schematic diagram of the second conveying structure in the embodiment of the present application is shown in the figure.

[0051] Figure 8 The cooperation schematic diagram of the driving wheel, the driving tooth and the tape carrier package in the embodiment of the present application is shown in the figure.

[0052] Figure 9 The parameter labeling diagram of the first avoiding wheel in the embodiment of the present application is shown in the figure.

[0053] Figure 10 The simulation curve diagram of the second avoiding wheel radius and the corresponding angle of the arc length in the embodiment of the present application is shown in the figure.

[0054] Explanation of reference signs:

[0055] 1, the first conveying structure; 11, the first conveying track; 12, the first motor; 13, the first mounting seat; 14, the first mounting frame; 15, the damping driving wheel; 16, the damping driven wheel;

[0056] 2. Second conveying structure; 21. Second conveying track; 22. Second motor; 23. Second mounting base; 24. Driving wheel; 25. Driving gear; 26. Cover plate;

[0057] 3. Lifting adsorption structure; 31. Limiting member; 311. Adjusting slot; 32. Adsorption member; 321. Adsorption portion; 322. Lifting portion; 33. Driving member; 34. Track bar; 35. Mounting portion; 36. Limiting plate; 37. First avoidance wheel; 38. Second avoidance wheel;

[0058] 4. Tape and reel carrier tape. DETAILED DESCRIPTION

[0059] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0060] Solder paste printing is a core process in surface mount technology (SMT). Precisely applying solder paste to PCB pads using a stencil or inkjet printer directly impacts the soldering quality and rework rate of electronic products. This process utilizes automated equipment for feeding, positioning, calibration, and printing. The equipment incorporates a vision positioning system and a lifting mechanism to enhance precision.

[0061] However, the relevant device for printing solder paste on strip materials usually includes a conveying mechanism for conveying materials along the conveying direction and a track for providing printing support for the materials. During the transportation of the strip materials, the bottom surface of the tape is prone to continuous friction with the track, which is likely to cause damage to the bottom surface of the material, not only affecting the appearance of the product, but also causing damage to the circuit due to scratches, ultimately resulting in poor electrical performance of the chip and a decrease in yield rate.

[0062] In order to solve the above technical problems, the following Figures 1 to 10 , describing embodiments of the present invention.

[0063] According to an embodiment of the present invention, a roll-to-roll tape loading system is provided, comprising: a first conveying structure 1 , a second conveying structure 2 , and a lifting and adsorption structure 3 .

[0064] like Figures 1 to 8As shown, the first conveying structure 1 and the second conveying structure 2 are front and rear conveying tracks, respectively located at the front end and the rear end. The first conveying structure 1 and the second conveying structure 2 are arranged at intervals along the conveying direction. The lifting adsorption structure 3 is installed between the first conveying structure 1 and the second conveying structure 2. The two ends of the lifting adsorption structure 3 are connected with the first conveying structure 1 and the second conveying structure 2 respectively. The length direction of the lifting adsorption structure 3 as a whole is the conveying direction of the reel tape carrier tape 4. The first conveying structure 1, the lifting adsorption structure 3 and the second conveying structure 2 combine to form a conveying channel for conveying the reel tape carrier tape 4. The lifting adsorption structure 3 has a first working state of lifting the reel tape carrier tape 4 to a first working position; and the lifting adsorption structure 3 has a second working state of lowering the reel tape carrier tape 4 to a second working position.

[0065] In the initial state of the reel tape carrier tape operation system, the lifting adsorption structure 3 is in the low second working position, the first conveying structure 1, the second conveying structure 2 and the lifting adsorption structure 3 form a continuous conveying channel, the reel tape carrier tape 4 is suspended on the lifting adsorption structure 3 to avoid friction between the surface of the reel tape carrier tape 4 and the lifting adsorption structure 3, and the second conveying structure 2 is used to transmit the reel tape carrier tape 4 to drive it to move along the conveying direction. When it is necessary to print solder paste on the reel tape carrier tape 4 located in the lifting adsorption structure 3, the reel tape carrier tape 4 is first laid in the conveying channel, the lifting adsorption structure 3 drives the reel tape carrier tape 4 to rise to the first working position, the reel tape carrier tape 4 is taut, and the lifting adsorption structure 3 tightly adsorbs the reel tape carrier tape 4 on the surface of the lifting adsorption structure 3, an external printing mechanism prints solder paste on the upper surface of the reel tape carrier tape 4, and the first conveying structure 1 assists the lifting adsorption structure 3 to pull and stretch the reel tape carrier tape 4 to make it taut, avoiding displacement of the reel tape carrier tape 4 during printing and providing stable support for printing. After printing is completed, the lifting adsorption structure 3 is closed and the reel tape carrier tape 4 on the lifting adsorption structure 3 is in a suspended state again. The second conveying structure 2 drives the reel tape carrier tape 4 to continue moving along the conveying direction. The above steps are repeated to realize continuous printing of solder paste on the reel tape carrier tape 4. Through the above arrangement, when the reel tape carrier tape 4 is conveyed step by step, the bottom of the reel tape carrier tape 4 will not be continuously rubbed against the surface of the fixed track, so that damage to the bottom of the reel tape carrier tape 4 is avoided and the yield is improved.

[0066] In this embodiment, specifically, as shown in FIG. 1, the reel tape carrier tape operation system comprises a first conveying structure 1, a second conveying structure 2 and a lifting adsorption structure 3. Figures 1 to 4As shown, the lifting adsorption structure 3 comprises: a limiting piece 31, an adsorption piece 32, a driving piece 33, a track strip 34, a mounting part 35 and a limiting plate 36. The limiting piece 31 is a long strip plate, and a single limiting piece 31 is vertically placed, and the length direction thereof is the same as the conveying direction of the reel tape carrier tape 4. The two ends of the limiting piece 31 are respectively connected with the first conveying structure 1 and the second conveying structure 2, and the limiting piece 31 is clamped with the first conveying structure 1 and the second conveying structure 2. The limiting piece 31 is provided with two, and the two limiting pieces 31 are arranged in a spaced manner along the direction perpendicular to the conveying direction, and the spacing distance thereof is slightly narrower than the width of the reel tape carrier tape 4. The adsorption piece 32 is installed between the two limiting pieces 31, and the adsorption piece 32 comprises: an adsorption part 321 and a lifting part 322; the adsorption part 321 is installed at the top end of the lifting part 322, and the adsorption end of the adsorption part 321 is adapted to face upward; and the driving piece 33 is installed at the bottom of the lifting part 322. The width of the adsorption part 321 is equal to the distance between the two limiting pieces 31, the side surface of the adsorption part 321 is in contact with the inner side wall of the limiting piece 31, the lifting part 322 is always below the two limiting pieces 31 during movement, and the width of the lifting part 322 is greater than the distance between the two limiting pieces 31, so that the two sides of the lifting part 322 can be in contact with the bottom end of the two limiting pieces 31. Among them, the movable lower limit position of the upper surface of the lifting part 322 driven by the driving piece 33 is lower than the movable lower limit position of the bottom surface of the limiting piece 31. The track strip 34 is provided with two, and the two track strips 34 are respectively arranged on the upper surfaces of the two limiting pieces 31. The length direction of the track strip 34 is the conveying direction of the reel tape carrier tape 4. The mounting part 35 is installed on the outer side of the track strip 34, and the mounting part 35 is provided with a plurality of, the length direction of a single mounting part 35 on the upper surface of a single limiting piece 31 is the conveying direction of the reel tape carrier tape 4, and the arrangement direction of the plurality of mounting parts 35 on the upper surface of a single limiting piece 31 is also the conveying direction of the reel tape carrier tape 4. The vertical distance between the upper surface of the mounting part 35 and the bottom surface of the limiting piece 31 is greater than the vertical distance between the upper surface of the track strip 34 and the bottom surface of the limiting piece 31, that is, the upper surface of the mounting part 35 is higher than the upper surface of the track strip 34, and the limiting plate 36 is installed on the mounting part 35, and the limiting plate 36 is horizontally installed on the upper surface of the mounting part 35, and the lower surface of the limiting plate 36 and the upper surface of the track strip 34 have a conveying gap for conveying the reel tape carrier tape 4. The side edges of the reel tape carrier tape 4 are arranged between the track strip 34 and the limiting plate 36.

[0067] When the initial state of the tape carrier package operation system, the suction member 32 and the limiting member 31 are located at the lowest point of their respective active range. The tape carrier package 4 is placed between the track bar 34 and the limiting plate 36. When lifting is needed, the driving member 33 pushes the lifting part 322 to move upward. In the previous period, the lifting part 322 does not reach the lower limit of the active position of the limiting member 31, and the limiting member 31, the first conveying structure 1 and the second conveying structure 2 remain stationary. With the continuous rise, the lifting part 322 contacts the bottom of the limiting member 31 on both sides to ensure vertical guidance. The lifting part 322 pushes the suction part 321, the limiting member 31, the first conveying structure 1 and the second conveying structure 2 to continue to move upward until the suction part 321, the limiting member 31, the first conveying structure 1 and the second conveying structure 2 all reach the highest point of the active position. The suction part 321 lifts the tape carrier package 4, and the suction end of the suction part 321 applies negative pressure upward, and the carrier tape is tightly attached to the upper surface of the suction part 321. The external printing mechanism performs solder paste printing on the specific position of the upper surface of the tape carrier package 4 located between the two limiting members 31.

[0068] When the printing is completed and reset, the suction part 321 closes the vacuum, the tape carrier package 4 is separated from the suction surface, the driving member 33 pushes the lifting part 322 to move downward, and the suction part 321, the limiting member 31, the first conveying structure 1 and the second conveying structure 2 all move downward, but do not reach the lowest point of the active position of the limiting member 31. With the continuous downward movement, the limiting member 31 moves downward to the lowest point of the active position of the limiting member 31, ready to be out of contact with the lifting part 322. The lifting part 322 continues to move downward, the limiting member 31 is out of contact with the lifting part 322, the limiting member 31, the first conveying structure 1 and the second conveying structure 2 stop descending, and the suction member 32 continues to move downward until it moves to the lower limit of the active position of the suction member 32, and the descending stops. The suction member 32 and the limiting member 31 are located at the lowest point of their respective active range, and the tape carrier package 4 returns to the suspended conveying state.

[0069] It should be noted that when the suction part 321 and the limiting member 31 reach the active position, whether they are at the highest position or the lowest position, the side edges of the tape carrier package 4 are always in the gap between the track bar 34, the mounting part 35 and the limiting plate 36, which can eliminate the lateral displacement space. When the suction part 321 and the limiting member 31 are both at the highest position, the suction part 321 lifts the tape carrier package 4, making it tight, and adsorbing and fixing it on the upper surface, which is a secondary stabilization, further avoiding the deviation phenomenon caused during the solder paste printing process. When the suction part 321 and the limiting member 31 are both at the lowest position, the upper surface of the suction part 321 is lower than the upper surface of the track bar 34, so that the suction part 321 is separated from the tape carrier package 4, and the conveying of the tape carrier package 4 can be started, thereby avoiding the contact between the tape carrier package 4 and the top surface of the suction part 321 during the conveying process, thereby causing scratches and smudges on the metal surface below the tape carrier package 4.

[0070] In the present embodiment, as shown in Figure 3 and Figure 4 The limiting member 31 is provided with an adjusting groove 311 along the conveying direction. The lifting adsorption structure 3 further comprises a first avoiding wheel 37 and a second avoiding wheel 38, the outer diameter of the first avoiding wheel 37 is smaller than that of the second avoiding wheel 38, two first avoiding wheels 37 are provided, and the two first avoiding wheels 37 are respectively installed on the inner sides of the two limiting members 31, and the two first avoiding wheels 37 are both arranged on the side of the track strip 34 close to the second conveying structure 2, the first avoiding wheel 37 and the second avoiding wheel 38 both support the side edge of the reel tape carrier tape 4, and the first avoiding wheel 37 and the second avoiding wheel 38 do not contact the area of the printed tin paste. The second avoiding wheel 38 is installed in the adjusting groove 311, for example, a screw rod can be installed on the central axis of the second avoiding wheel 38, the screw rod is inserted into the adjusting groove 311, nuts are installed on the screw rods on both sides of the adjusting groove 311, and the nuts are tightened to fix the second avoiding wheel 38 on the adjusting groove 311; or the nuts are rotated away from the corresponding limiting member 31, so that the second avoiding wheel 38 is loosened, and the position of the second avoiding wheel 38 in the adjusting groove 311 can be adjusted. The side edge of the reel tape carrier tape 4 is wound between the first avoiding wheel 37 and the second avoiding wheel 38, specifically, the reel tape carrier tape 4 is wound from the upper end of the first avoiding wheel 37 and extends from the lower end of the second avoiding wheel 38, forming a bent propagation path. The reel tape carrier tape 4 can have a small radius and a large angle of avoidance towards the obliquely downward direction at the first avoiding wheel 37, so that the current printing area of the reel tape carrier tape 4 during printing can effectively avoid the tin paste printing area of the reel tape carrier tape 4 before printing, and the printed tin paste is protected from being touched and the tin paste form is not damaged.

[0071] As shown in Figure 9 The specific calculation steps for determining the position of the second avoiding wheel 38 on the adjusting groove 311 are as follows: defining the radius r of the second avoiding wheel 38, the length (arc length) of the reel tape carrier tape 4 on the guide wheel as l, the corresponding angle θ of the arc length, the projection d of the arc length in the X direction, and the projection h in the Y direction. According to the above conditions, the following equations can be listed.

[0072]

[0073]

[0074] Combined with the constraint conditions and the abstract graphic geometric constraints, the following variable constraints are listed:

[0075] l<7.716 ③

[0076] In order to avoid the height of the tin paste, h takes a relatively large redundancy of 316%:

[0077] h≥0.5 ④

[0078] The projection of the length of the coiled carrier tape 4 on the guide wheel in the horizontal direction must be smaller than its length itself:

[0079] d < l ⑤

[0080] Since the length of the coiled carrier tape 4 on the guide wheel corresponds to an angle in the range of 45° to 90°:

[0081] 45° ≤ θ ≤ 90° ⑥

[0082] According to the material properties of the coiled carrier tape 4, it is found by experiment that short-time bending has little effect on the product performance when the bending radius is above 1.75 mm, and a 15% redundancy value is taken to limit the actual bending radius as follows:

[0083] r ≥ 2 ⑦

[0084] The image as shown in Figure 10 is obtained, with the vertical coordinate being r (mm) and the horizontal coordinate being θ (°), and the starting point of the leftmost line segment of the table being taken as the reference, the first curve, the first horizontal line, the second curve and the third curve being from top to bottom, and the first vertical line and the second vertical line being from left to right. The first curve is the curve of equation ① at the extreme value of constraint condition ③; the second curve is the curve of equation ② at the extreme value of constraint condition ④ when d = 1.45; the first vertical line and the second vertical line represent the extreme value of θ, and the first horizontal line is the intersection of the maximum extreme value and the first curve of equation ①. The value range of r is the r intersection of the closed interval of the curves in the constraint condition, that is, 4.9 ≥ r ≥ 2. Therefore, the radius of the first avoiding wheel 37 can be determined, and a bearing with a radius below 4.9 mm and above 2 mm is used as the first avoiding wheel 37, which can ensure that the strip product is not damaged within the bending angle range of 45° to 90° without damaging the printed solder paste.

[0085] In the embodiment, as shown in Figure 5 and Figure 6 , the first conveying structure 1 comprises a first conveying track 11, a first motor 12, a first mounting seat 13, a first mounting frame 14, a damping driving wheel 15 and a damping driven wheel 16. The first conveying track 11 is connected with a limiting piece 31, and a vertical first through hole is formed in the first conveying track 11. The first mounting seat 13 and the first mounting frame 14 are installed on the first conveying track 11, the first motor 12 is installed on the first mounting seat 13, the damping driving wheel 15 and the damping driven wheel 16 are arranged in the first through hole position in a top-to-bottom manner, and the damping driving wheel 15 and the damping driven wheel 16 are both installed on the first mounting frame 14. The damping driving wheel 15 is connected with the output end of the first motor 12. The first motor 12 is a damping motor.

[0086] The output end of the first motor 12 transmits a constant damping torque toward the damping driving wheel 15. The damping driving wheel 15 rotates with a fixed torque, driving the tape carrier 4 at this position to move away from the limit member 31, ensuring that the tape carrier 4 has a tendency to be tensioned during use. The damping driven wheel 16 below presses the tape carrier 4 against the damping driving wheel 15, preventing the tape carrier 4 from relative displacement with the surface of the damping driving wheel 15, preventing the driving wheel from slipping and ensuring the stability of the torque and tensioning effect. The surfaces of the damping driving wheel 15 and the damping driven wheel 16 are made of flexible materials to prevent them from scratching the tape carrier 4.

[0087] The first conveying track 11 may be configured as a double-layered structure, and the roll-to-roll carrier tape 4 is located between the double-layered first conveying track 11 .

[0088] In this embodiment, if Figures 7 to 8 As shown, the second conveying structure 2 includes: a second conveying track 21, a second motor 22, a second mounting seat 23, a driving wheel 24 and a cover plate 26. The second conveying track 21 is connected to the limit member 31. A second through hole is vertically opened on the second conveying track 21. The second motor 22 is mounted on the second conveying track 21 through the second mounting seat 23. The axial direction of the output shaft of the second motor 22 is perpendicular to the conveying direction. There are two driving wheels 24, and two driving members 33 are mounted on the second motor 22. The annular side wall of each driving wheel 24 is circumferentially provided with a plurality of driving teeth 25. At least part of the driving wheels 24 pass through the second through hole to the top of the second conveying track 21. The cover plate 26 is hinged on the second mounting seat 23 and can cover the top of the driving wheel 24.

[0089] Through the above arrangement, the second conveying structure 2 plays the role of conveying the roll-type carrier 4. The output end of the second motor 22 is also equipped with a reduction gearbox. The second motor 22 drives the driving wheel 24 to rotate through the reduction gearbox, and passes through the second through hole to the upper part of the second conveying track 21. The positioning holes on both sides of the driving wheel 24 are inserted into the positioning holes of the roll-type carrier 4, thereby driving the roll-type carrier 4 to move. As the driving wheel 24 rotates continuously, the driving teeth 25 thereon drive the roll-type carrier 4 to move continuously. When the limiter 31 and the adsorption member 32 are in the lowest position, the second conveying structure 2 starts to drive the roll-type carrier 4 to move. When the limiter 31 and the adsorption member 32 are in the upper limit position, the second conveying structure 2 stops conveying to facilitate the external solder paste printing mechanism to print on the roll-type carrier 4. Each movement is a fixed step length to ensure the accuracy of the running position of the roll-type carrier 4 at each step. Before the second conveying structure 2 is transported, the cover 26 can be opened to place the roll-type carrier 4. During operation, the cover 26 needs to be closed on top of the roll-type carrier 4 to prevent the roll-type carrier 4 from separating from the driving teeth 25 on the driving wheel 24.

[0090] In the present embodiment, as shown in Figure 1 , Figures 5 to 8 The first conveying track 11 and the second conveying track 21 are both arc-shaped tracks away from one end of the lifting adsorption structure 3, which can make the tape-type carrier tape 4 smoothly transition between upstream and downstream devices.

[0091] Although the embodiments of the present application are described in conjunction with the accompanying drawings, various modifications and changes can be suggested by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and changes are intended to fall within the scope of the appended claims.

Claims

1. A roll-to-roll tape operation system, characterized in that: include: A first conveying structure (1) and a second conveying structure (2), wherein the first conveying structure (1) and the second conveying structure (2) are arranged at intervals along a conveying direction; a lifting adsorption structure (3), wherein the lifting adsorption structure (3) is installed between the first conveying structure (1) and the second conveying structure (2); the first conveying structure (1), the lifting adsorption structure (3) and the second conveying structure (2) are combined to form a conveying channel for conveying the roll-type carrier tape (4); The lifting and adsorption structure (3) has a first working state for lifting the roll-type carrier (4) to a first working position; and the lifting and adsorption structure (3) has a second working state for lowering the roll-type carrier (4) to a second working position.

2. The roll-to-roll tape operation system according to claim 1, wherein: The lifting adsorption structure (3) comprises: A limiting member (31), wherein two limiting members (31) are provided, and the two limiting members (31) are spaced apart along a direction perpendicular to the conveying direction; two ends of the limiting member (31) are respectively connected to the first conveying structure (1) and the second conveying structure (2); An adsorption member (32), the adsorption member (32) being installed between the two limiting members (31); A driving member (33), wherein an output end of the driving member (33) is connected to the adsorption member (32).

3. The roll-to-roll tape operation system according to claim 2, wherein: The adsorption member (32) comprises: an adsorption portion (321) and a lifting portion (322); the adsorption portion (321) is mounted on the top of the lifting portion (322), and the adsorption end of the adsorption portion (321) is adapted to face upward; the driving member (33) is mounted on the bottom of the lifting portion (322); Wherein, the width of the lifting portion (322) is greater than the distance between the two limiting members (31).

4. The roll-to-roll tape operation system according to claim 3, wherein: The movable lower limit position of the upper surface of the lifting portion (322) is lower than the lowest movable position of the bottom surface of the limiting member (31).

5. The roll-to-roll tape operation system according to claim 3, wherein: The lifting adsorption structure (3) further includes: A track bar (34), the track bar (34) being mounted on the inner side of the upper surface of the limiting member (31); A mounting portion (35), the mounting portion (35) being mounted on the outside of the track bar (34), wherein a positive distance between an upper surface of the mounting portion (35) and a bottom surface of the limiting member (31) is greater than a positive distance between an upper surface of the track bar (34) and a bottom surface of the limiting member (31); a limiting plate (36), the limiting plate (36) being horizontally mounted on the upper surface of the mounting portion (35); There is a gap between the limiting plate (36) and the track bar (34), and the side of the roll-type carrier tape (4) is arranged between the track bar (34) and the limiting plate (36).

6. The roll-to-roll tape operation system according to claim 5, wherein: The limiting member (31) is provided with an adjustment groove (311) along the conveying direction; The lifting adsorption structure (3) further includes: a first avoidance wheel (37), the first avoidance wheel (37) being installed on the inner side of the limiting member (31) and being arranged on a side of the track bar (34) close to the second conveying structure (2); a second avoidance wheel (38), the second avoidance wheel (38) being installed in the adjustment groove (311); Wherein, the side edge of the roll-type carrier tape (4) is wound between the first avoidance wheel (37) and the second avoidance wheel (38).

7. The roll-to-roll tape operation system according to claim 5, wherein: The first conveying structure (1) comprises: A first conveying track (11), wherein the first conveying track (11) is connected to the limiting member (31), and a first through hole is provided on the first conveying track (11); a first motor (12), the first motor (12) being mounted on the first conveying track (11) via a first mounting seat (13); a first mounting frame (14), the first mounting frame (14) being connected to the first conveying track (11); A damping driving wheel (15) and a damping driven wheel (16), wherein the damping driving wheel (15) and the damping driven wheel (16) are arranged in an upper and lower manner at the position of the first through hole, and the damping driving wheel (15) and the damping driven wheel (16) are both installed on the first mounting frame (14); the damping driving wheel (15) is connected to the output end of the first motor (12).

8. The roll-to-roll tape operation system according to claim 5, wherein: The second conveying structure (2) comprises: a second conveying track (21), the second conveying track (21) being connected to the limiting member (31), and a second through hole being provided on the second conveying track (21); a second motor (22), the second motor (22) being mounted on the second conveying track (21) via a second mounting seat (23); A driving wheel (24) is connected to the second motor (22), and a plurality of driving teeth (25) are arranged on the driving wheel (24) along the circumference; at least a portion of the driving wheel (24) passes through the second through hole to the top of the second conveying track (21).

9. The roll-to-roll tape operation system according to claim 8, wherein: The second conveying structure (2) comprises a cover plate (26), the cover plate (26) is hinged on the second mounting seat (23), and the cover plate (26) can cover the top of the driving wheel (24).

10. The roll-to-roll tape operation system according to claim 8, wherein: The ends of the first conveying track (11) and the second conveying track (21) away from the lifting adsorption structure (3) are both arc-shaped tracks.

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