Diode braid disassembling device

Abstract

The utility model provides a diode braid disassembling device, which relates to the technical field of diode braid production and comprises a frame, a braid disassembling mechanism and an arc-shaped structure, the belt detaching mechanism comprises two first belt detaching wheels which are parallel and symmetrically arranged and two second belt detaching wheels which are symmetrically arranged, the two second belt detaching wheels are in a splayed shape, and the side, with the large distance formed by the two second belt detaching wheels, is close to the arc-shaped structure and serves as the belt detaching outlet side. The two first belt detaching wheels are located between the two second belt detaching wheels and rotationally connected with the frame through second driving shafts, and each second belt detaching wheel is rotationally connected with the frame through a driving mechanism and synchronously rotates with the first belt detaching wheels. The lowest end of the arc-shaped end of the arc-shaped plate is lower than the lowest end of the first belt detaching wheel, the height of the diode starting to freely fall is reduced, then impact force caused to the diode falling into the collecting box is reduced, and the belt detaching effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of diode tape production technology, specifically to a diode tape unwinding device. Background Technology

[0002] In the TMTT process of diode products, if errors such as printed patterns, model numbers, or cycle codes occur, the packaged material needs to be disassembled into individual diodes and reworked by electroplating to remove the markings.

[0003] In the current diode tape removal process, after the red and white braided tapes on the diode tape are removed, the diode falls freely into the collection box under the influence of gravity. However, the lowest point of the arc-shaped structure on the tape removal device that removes the diode from the red and white braided tapes is relatively high. This causes the diode to fall freely from a high height after tape removal, which generates a large impact force on the diode that has already fallen into the collection box. Therefore, this is not conducive to the tape removal operation of diode tape. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a diode tape-and-reel device that solves the problem of diodes falling freely from a high height after tape removal.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] In this utility model, the diode tape-and-reel device includes a frame and a tape-and-reel mechanism and an arc-shaped structure installed inside the frame.

[0009] The tape removal mechanism includes two parallel and symmetrically arranged tape removal wheels one and two symmetrically arranged tape removal wheels two. The two tape removal wheels two are in a figure-eight shape. The side with the larger distance between the two tape removal wheels two is the side closer to the arc-shaped structure and serves as the tape removal outlet side.

[0010] Both of the two tape-removing wheels are located between the two tape-removing wheels and are rotatably connected to the frame via a drive shaft. Each of the two tape-removing wheels is rotatably connected to the frame via a drive mechanism and rotates synchronously with the tape-removing wheel.

[0011] When the second pulley rotates synchronously with the first pulley, the second pulley rotates at an angle relative to the first pulley, and the angle of inclination remains constant during the rotation.

[0012] The arc-shaped structure includes two arc-shaped plates corresponding to the tape removal rollers, which are used to limit the diodes during tape removal. The two arc-shaped plates are fixed by a connecting rod and detachably connected to the frame. The side of each arc-shaped plate closest to the tape removal roller is an arc-shaped end and forms an arc-shaped gap with the tape removal roller. The lowest point of the arc-shaped end of the arc-shaped plate is lower than the lowest point of the tape removal roller.

[0013] A positioning groove 1 is formed between two adjacent teeth on each of the first and second belt-removing wheels, and a positioning groove 2 corresponding to the positioning groove 1 is formed between two adjacent teeth on each of the second and third belt-removing wheels.

[0014] Furthermore, a limiting post is detachably installed between the two disassembly wheels, and the limiting post is fixed relative to the two disassembly wheels by limiting structures two respectively provided on both sides;

[0015] The limiting post passes through the corresponding sleeve hole on the second belt pulley but does not contact the sleeve hole.

[0016] Furthermore, multiple limiting posts are provided, and the multiple limiting posts are arranged at equal intervals along the circumference of the belt unloading wheel;

[0017] As the first belt-removing wheel rotates and gradually approaches the arc-shaped structure, each limiting post gradually retracts into the corresponding sleeve hole without ever disengaging from the second belt-removing wheel.

[0018] Furthermore, a cylindrical gear two is fixedly sleeved on the second drive shaft, and a first drive shaft is rotatably connected to the frame. A first cylindrical gear one is fixedly sleeved on the first drive shaft. The diameter of the first cylindrical gear is smaller than the diameter of the second cylindrical gear. The first cylindrical gear and the second cylindrical gear mesh. The first drive shaft is driven by a drive motor.

[0019] Furthermore, the frame is placed on the base and fixed to the base by connecting blocks, and the frame forms a cavity between the base and the ground for placing the receiving box.

[0020] Furthermore, a guide mechanism is installed at the end of the connecting block away from the frame. A first limiting roller and a second limiting roller are installed on the guide mechanism. The second limiting roller is located directly above the first limiting roller and forms a positioning gap with the first limiting roller for limiting the diode tape during the traction process.

[0021] The first limiting roller is rotatably connected to the guide mechanism via the first rotating rod, and the second limiting roller is rotatably connected to the guide mechanism via the second rotating rod.

[0022] Furthermore, two symmetrically arranged lifting blocks are installed on the frame, each of the lifting blocks being L-shaped and corresponding one-to-one with the belt-removing wheel;

[0023] When removing the tape, the red and white tapes on the diode tape slide along the surface of the corresponding support block, respectively.

[0024] The sliding surface on each of the lifting blocks for the red and white braided tapes coincides with the highest point of the tape release wheel.

[0025] (III) Beneficial Effects

[0026] This invention provides a diode tape-and-reel device. Compared with the prior art, it has the following advantages:

[0027] Beneficial effects:

[0028] By setting up an arc-shaped structure, when setting up the arc plate, the lowest point of the arc end of the arc plate is lower than the lowest point of the unloading wheel. When the diodes on the diode tape are unloaded, the diodes removed from the diode tape slide down along the arc end and fall into the collection box for collection. This reduces the height from which the diodes begin to fall, thereby reducing the impact force on the diodes that have already fallen into the collection box, preventing diode damage and improving the unloading effect. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of a diode tape-and-reel device;

[0031] Figure 2 for Figure 1 A 3D view of the installation of the central frame, guide mechanism, connecting block, disassembly mechanism, and arc structure;

[0032] Figure 3 for Figure 2 Partial 3D view of the disassembly mechanism;

[0033] Figure 4 for Figure 2 Top view;

[0034] Figure 5 This is a partial structural diagram of the belt unwinding mechanism;

[0035] Figure 6 for Figure 2 The right view;

[0036] Figure 7 for Figure 2A schematic diagram of the central pulley and the arc-shaped structure;

[0037] Figure 8 This is a schematic diagram of the structure when a diode tape is placed on a diode tape unwinding device for unwinding.

[0038] Figure label:

[0039] 1. Base; 2. Frame; 21. Drive shaft one; 211. Cylindrical gear one; 22. Drive shaft two; 221. Cylindrical gear two; 222. Limiting structure one; 23. Lifting block; 3. Guide mechanism; 31. Limiting roller one; 32. Limiting roller two; 4. Connecting block; 5. Belt removal mechanism; 51. Belt removal wheel one; 511. Positioning groove one; 52. Belt removal wheel two; 521. Positioning groove two; 522. Sleeve hole; 53. Drive mechanism; 531. Limiting post; 532. Limiting structure two; 6. Arc plate; 61. Connecting rod; 62. Arc gap; 7. Diode; 8. Red braided tape; 9. White braided tape. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0041] This application provides a diode tape-and-reel device that solves the problem of diodes falling freely from a high height after tape removal, thus improving the tape removal effect.

[0042] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0043] like Figures 1-8 As shown, a diode tape-and-reel device includes a frame 2 and a tape-and-reel mechanism 5 and an arc-shaped structure installed inside the frame 2.

[0044] The tape removal mechanism 5 includes two parallel and symmetrically arranged tape removal wheels 51 and two symmetrically arranged tape removal wheels 52. The two tape removal wheels 52 are in a figure-eight shape. The side with the larger distance between the two tape removal wheels 52 is the side closer to the arc structure and serves as the tape removal outlet side.

[0045] Both of the two tape-removing rollers 51 are located between the two tape-removing rollers 52 and are rotatably connected to the frame 2 via the drive shaft 22. Each tape-removing roller 52 is rotatably connected to the frame 2 via the drive mechanism 53 and rotates synchronously with the tape-removing roller 51.

[0046] When the second pulley 52 rotates synchronously with the first pulley 51, the second pulley 52 rotates at an angle relative to the first pulley 51 and the angle of inclination remains unchanged during the rotation.

[0047] The arc-shaped structure includes two arc-shaped plates 6 corresponding to the tape removal wheel 51, which are used to limit the diode 7 during tape removal. The two arc-shaped plates 6 are fixed by a connecting rod 61 and detachably connected to the frame 2. The side of each arc-shaped plate 6 near the tape removal wheel 51 is an arc-shaped end and forms an arc-shaped gap 62 with the tape removal wheel 51. The lowest point of the arc-shaped end of the arc-shaped plate 6 is lower than the lowest point of the tape removal wheel 51.

[0048] A positioning groove 511 is formed between two adjacent teeth on each of the first and second stripping rollers 51, and a positioning groove 521 corresponding to the positioning groove 511 is formed between two adjacent teeth on each of the second and third stripping rollers 52.

[0049] By setting an arc-shaped structure, the arc-shaped structure is set as a combination of two arc-shaped plates 6. The arc-shaped gap 62 formed between the two arc-shaped plates 6 and the unloading wheel 51 is used to limit the diode 7 on the diode tape during the unloading process, so as to facilitate the unloading process.

[0050] When setting the arc plate 6, the lowest point of the arc end of the arc plate 6 is lower than the lowest point of the stripping roller 51. When the diode 7 on the diode tape is stripped, the diode 7 removed from the diode tape slides down the arc end and falls into the collection box for collection. This reduces the height at which the diode 7 begins to fall freely, thereby reducing the impact force on the diode 7 that has fallen into the collection box and preventing damage to the diode 7.

[0051] Furthermore, when setting the arc structure, two arc plates 6 are set up. The gap formed between the two arc plates 6 is used to limit the thicker tube body in the middle of the diode 7. The thicker tube body in the middle of the diode 7 slides along the gap. While realizing the sliding limit of the diode 7, the contact between the thicker tube body in the middle of the diode 7 and the arc structure is effectively reduced, further protecting the diode 7 after disassembly.

[0052] Specifically, when setting the drive mechanism 53, an electromagnetic bearing can be installed inside the drive mechanism 53, and both the drive mechanism 53 and the electromagnetic bearing can be sleeved on the drive shaft 22. The corresponding pulley 2 52 and pulley 1 51 can be driven to rotate synchronously by driving the electromagnetic bearing.

[0053] Furthermore, the electromagnetic bearing in the drive mechanism 53 is inclined relative to the drive shaft 22 used for the first pulley 51, thereby controlling the second pulley 52 to be inclined relative to the first pulley 51, so that the tilt angle of the first pulley 51 and the second pulley 52 remains unchanged during rotation.

[0054] The drive mechanism 53 is fixedly connected to the frame 2 and controls the electromagnetic bearing to drive the corresponding pulley 52 and drive shaft 22 to rotate synchronously. When rotating, the electromagnetic bearing is suspended and does not contact the drive shaft 22.

[0055] Specifically, a sleeve is welded between the two pulleys 51 and is fitted onto the drive shaft 22 through the sleeve. Both pulleys 51 fitted onto the drive shaft 22 are fixedly connected to the drive shaft 22 through a limiting structure 222, thereby facilitating the fixed installation of the pulleys 51.

[0056] A limiting post 531 is detachably installed between the two disassembly rollers 51. The limiting post 531 is fixed relative to the two disassembly rollers 51 by limiting structures 532 respectively provided on both sides.

[0057] The limiting post 531 passes through the corresponding sleeve hole 522 on the second belt pulley 52 and does not contact the sleeve hole 522.

[0058] By setting a limiting post 531, the two tape removal wheels 51 are further fixed by the limiting post 531 and the limiting structure 532, which enhances the stability of the two tape removal wheels 51 during rotation. This effectively reduces the offset of the two tape removal wheels 51 after long-term rotation and prevents the problem of tape removal inconvenience caused by the diode 7 not being accurately located in the corresponding positioning groove 511 and the corresponding positioning groove 521.

[0059] Meanwhile, the limiting post 531 passes through the sleeve hole 522 on the second strip pulley 52 and does not contact the inside of the sleeve hole 522. Therefore, once the limiting post 531 contacts the sleeve hole 522 and produces noise, it indicates that the second strip pulley 52 has shifted to a certain extent and needs to be inspected. The limiting post 531 serves as a warning for whether the first strip pulley 51 and the second strip pulley 52 have shifted, and can detect the problem of the second strip pulley 52 shifting in time.

[0060] It should be noted that both the first limiting structure 222 and the second limiting structure 532 are composed of a sleeve and a positioning pin, respectively. The positioning pin is used to fix the sleeve, thereby realizing the limiting operation.

[0061] Multiple limiting posts 531 are provided, and the multiple limiting posts 531 are arranged at equal intervals along the circumference of the belt-removing pulley 51;

[0062] As the first belt unloading wheel 51 rotates and gradually approaches the arc-shaped structure, each limiting post 531 gradually retracts into the corresponding sleeve hole 522 without ever disengaging from the second belt unloading wheel 52.

[0063] By setting multiple limit posts 531, the stability of the first tape removal wheel 51 is improved, and it can provide early warning of whether the first tape removal wheel 51 and the second tape removal wheel 52 are deviated. After the first tape removal wheel 51 and the second tape removal wheel 52 are repaired and reinstalled, by observing whether the limit posts 531 completely disengage from the tape removal wheel 52 during the entire rotation process, it can be determined whether the installation position of the first tape removal wheel 51 and the second tape removal wheel 52 is accurate, so as to avoid the problem of installation position deviation, which is not conducive to subsequent tape removal operations.

[0064] A cylindrical gear 221 is fixedly sleeved on the second drive shaft 22. A first drive shaft 21 is rotatably connected to the frame 2. A cylindrical gear 211 is fixedly sleeved on the first drive shaft 21. The diameter of the cylindrical gear 211 is smaller than the diameter of the second cylindrical gear 221. The cylindrical gear 211 and the second cylindrical gear 221 mesh. The first drive shaft 21 is driven by a drive motor.

[0065] By setting the meshing of cylindrical gear 211 and cylindrical gear 221, and with the diameter of cylindrical gear 211 being smaller than that of cylindrical gear 221, the drive shaft 22 can be decelerated, which facilitates the deceleration of the tape release wheel 51 and the tape release operation of the diode tape.

[0066] The frame 2 is placed on the base 1 and fixed to the base 1 by the connecting block 4. The frame 2 forms a cavity between the base 1 and the ground for placing the receiving box, which facilitates the receiving operation of the disassembled diode 7.

[0067] The connecting block 4 is equipped with a guide mechanism 3 at one end away from the frame 2. The guide mechanism 3 is equipped with a first limiting roller 31 and a second limiting roller 32. The second limiting roller 32 is located directly above the first limiting roller 31 and forms a positioning gap with the first limiting roller 31 for limiting during the diode tape pulling process.

[0068] The first limiting roller 31 is rotatably connected to the guide mechanism 3 via a first rotating rod, and the second limiting roller 32 is rotatably connected to the guide mechanism 3 via a second rotating rod.

[0069] Specifically, two symmetrically arranged lifting blocks 23 are installed on the frame 2, each of the lifting blocks 23 being L-shaped and corresponding one-to-one with the belt removal wheel 52;

[0070] When removing the tape, the red tape 8 and white tape 9 on the diode tape slide along the surface of the corresponding support block 23 respectively;

[0071] The sliding surface of each of the lifting blocks 23 for the red braided tape 8 and the white braided tape 9 coincides with the highest point of the tape-removing wheel 51.

[0072] By setting two L-shaped lifting blocks 23, the diode tape during the traction process is limited by the lifting blocks 23, so that the diode 7, red tape 8 and white tape 9 on the diode tape can be pulled along the lifting blocks 23 to the corresponding tape removal roller 1 51 and tape removal roller 2 52, so as to meet the needs of subsequent tape removal work.

[0073] During operation, one end of the diode braided tape in the material box is passed through the positioning gap formed on the guide mechanism 3, and the red braided tape 8 and white braided tape 9 on the diode braided tape passing through the positioning gap are pulled by the traction mechanism on the tape removal device. The traction mechanism on the tape removal device, together with the tape removal mechanism 5, is the existing technology for pulling and removing the tape, which will not be described in detail here. During the pulling process, the diode 7 on the diode braided tape is detached from the diode braided tape under the action of the tape removal mechanism 5 and the arc structure, and slides down along the arc end of the arc plate 6 on the arc structure into the receiving box for collection, thus completing the tape removal operation of the diode braided tape.

[0074] Specifically, when the tape removal mechanism 5 and the arc-shaped structure work together to remove the tape, the red tape 8 and white tape 9 on the diode tape are respectively located on the corresponding lifting blocks 23, and under the action of the traction mechanism, the diode 7 is driven to be located in the corresponding positioning groove 1 511 and positioning groove 2 521. The red tape 8 and white tape 9 are respectively located on the corresponding tape removal wheel 2 52. As the tape removal wheel 1 51 rotates, the diode 7 located in the corresponding positioning groove 1 511 and positioning groove 2 521 approaches the arc-shaped structure, and the arc-shaped structure blocks the diode 7 to separate it from the red tape 8 and white tape 9 and drop it into the receiving box. Since the red tape 8 and white tape 9 located on both sides of the diode 7 are not blocked by the arc-shaped structure, the red tape 8 and white tape 9 continue to be pulled outward by the traction mechanism to complete the tape removal operation.

[0075] It should be noted that the distance between the two tape removal rollers 51 is greater than the length of the thicker tube in the middle of diode 7. When removing the tape, the thicker tube of the diode is suspended between the two tape removal rollers 51.

[0076] Furthermore, when placing the diode tape, the side of the diode tape with the diode 7 should face downwards and be close to the tape unwinding mechanism 5.

[0077] In summary, compared with existing technologies, it has the following beneficial effects:

[0078] 1. By setting an arc-shaped structure, when setting the arc plate 6, the lowest point of the arc end of the arc plate 6 is lower than the lowest point of the unloading wheel 51. When the diode 7 on the diode tape is unloaded, the diode 7 removed from the diode tape slides down along the arc end and falls into the collection box for collection. This reduces the height from which the diode 7 begins to fall freely, thereby reducing the impact force on the diode 7 that has fallen into the collection box and preventing damage to the diode 7.

[0079] 2. Furthermore, when setting the arc structure, two arc plates 6 are set up. The gap formed between the two arc plates 6 is used to limit the thicker tube body in the middle of the diode 7. The thicker tube body in the middle of the diode 7 slides along the gap. While realizing the sliding limit of the diode 7, the contact between the thicker tube body in the middle of the diode 7 and the arc structure is effectively reduced, further protecting the diode 7 after disassembly.

[0080] 3. By setting a limiting post 531, the two tape removal wheels 51 are further fixed by the limiting post 531 and the limiting structure 532, which strengthens the stability of the two tape removal wheels 51 during rotation. This can effectively reduce the offset of the two tape removal wheels 51 after long-term rotation and prevent the problem of tape removal inconvenience caused by the diode 7 not being accurately located in the corresponding positioning groove 511 and the corresponding positioning groove 521.

[0081] Furthermore, the limiting post 531 serves as a warning to indicate whether the first belt pulley 51 and the second belt pulley 52 are misaligned, and can promptly detect any misalignment of the second belt pulley 52.

[0082] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0083] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A device for unstrapping a diode ribbon, characterized in that Includes a frame (2) and a strap removal mechanism (5) installed inside the frame (2) and an arc-shaped structure; The tape removal mechanism (5) includes two parallel and symmetrically arranged tape removal wheels (51) and two symmetrically arranged tape removal wheels (52). The two tape removal wheels (52) are in a figure-eight shape. The side with the larger gap between the two tape removal wheels (52) is the side closer to the arc structure and serves as the tape removal outlet side. Both of the two belt-removing wheels (51) are located between the two belt-removing wheels (52) and are rotatably connected to the frame (2) via the drive shaft (22). Each of the belt-removing wheels (52) is rotatably connected to the frame (2) via the drive mechanism (53) and rotates synchronously with the belt-removing wheels (51). When the second pulley (52) rotates synchronously with the first pulley (51), the second pulley (52) rotates at an angle relative to the first pulley (51) and the angle of inclination remains unchanged during the rotation. The arc-shaped structure includes two arc-shaped plates (6) that correspond one-to-one with the tape removal wheel (51), which are used to limit the diode (7) during tape removal; The two arc plates (6) are fixed by connecting rods (61) and detachably connected to the frame (2). Each arc plate (6) has an arc end on the side near the first strip wheel (51) and forms an arc gap (62) with the first strip wheel (51). The lowest end of the arc end of the arc plate (6) is lower than the lowest end of the first strip wheel (51). A positioning groove 1 (511) is formed between two adjacent teeth on each of the first (51) belt-removing rollers, and a positioning groove 2 (521) corresponding to the positioning groove 1 (511) is formed between two adjacent teeth on each of the second (52) belt-removing rollers.

2. A device for unstranding a diode ribbon as defined in claim 1, wherein A limiting post (531) is detachably installed between the two disassembly rollers (51), and the limiting post (531) is fixed relative to the two disassembly rollers (51) by limiting structures (532) respectively provided on both sides; The limiting post (531) passes through the corresponding sleeve hole (522) on the second pulley (52) and does not contact the sleeve hole (522).

3. A device for unstranding a diode ribbon as defined in claim 2, wherein Multiple limiting posts (531) are provided, and the multiple limiting posts (531) are arranged at equal intervals along the circumference of the belt pulley (51); As the first pulley (51) rotates and gradually approaches the arc-shaped structure, each limit post (531) gradually retracts into the corresponding sleeve hole (522) and never disengages from the second pulley (52).

4. A device for unstranding a diode ribbon as defined in claim 1, wherein A cylindrical gear 2 (221) is fixedly sleeved on the second drive shaft (22). A first drive shaft (21) is rotatably connected to the frame (2). A cylindrical gear 1 (211) is fixedly sleeved on the first drive shaft (21). The diameter of the first cylindrical gear (211) is smaller than the diameter of the second cylindrical gear (221). The first cylindrical gear (211) and the second cylindrical gear (221) mesh. The first drive shaft (21) is driven by a drive motor.

5. A device for unstranding a diode ribbon as defined in claim 1, wherein The frame (2) is placed on the base (1) and fixed to the base (1) by the connecting block (4). The frame (2) forms a cavity for placing the receiving box between the base (1) and the ground.

6. A device for unstranding a diode ribbon as defined in claim 5, wherein The connecting block (4) is equipped with a guide mechanism (3) at one end away from the frame (2). The guide mechanism (3) is equipped with a first limiting roller (31) and a second limiting roller (32). The second limiting roller (32) is located directly above the first limiting roller (31) and forms a positioning gap with the first limiting roller (31) for limiting the diode during the tape pulling process. The first limiting roller (31) is rotatably connected to the guide mechanism (3) via the first rotating rod, and the second limiting roller (32) is rotatably connected to the guide mechanism (3) via the second rotating rod.

7. A device for unstranding a diode ribbon as defined in claim 1, wherein Two symmetrically arranged lifting blocks (23) are installed on the frame (2), each of the lifting blocks (23) is L-shaped and corresponds one-to-one with the two belt-removing wheels (52); When the diode tape is removed, the red tape (8) and white tape (9) on the diode tape slide along the surface of the corresponding support block (23) respectively; The sliding surface of each of the lifting blocks (23) for the red braided tape (8) and the white braided tape (9) coincides with the highest point of the tape-removing wheel (51).

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