TW202335142A - Cof carrier tape conveyor - Google Patents

Abstract

The invention discloses a COF carrier tape conveying device, comprising: a main transmission mechanism is connected with a driving mechanism, a first auxiliary transmission mechanism is connected with the driving mechanism, the first auxiliary transmission mechanism is located above the main transmission mechanism, and the second auxiliary transmission mechanism is connected with the main transmission mechanism. The transmission mechanism is connected, and the second auxiliary transmission mechanism is located in front of the main transmission mechanism, wherein, when the COF carrier tape is conveyed in a straight line, the first auxiliary transmission mechanism can press the edges of both sides of the COF carrier tape, so that the COF carrier tape is conveyed in a straight line. Keep it flat during the process; when the COF carrier tape is conveyed at a curved angle, the first auxiliary transmission mechanism and the second auxiliary transmission mechanism can press the edges of both sides of the COF carrier tape, so that the COF carrier tape is kept flat during the curved angle conveying process. The invention adopts the pressing force to compress the COF carrier tape, which can avoid tearing and damage of the COF carrier tape due to the ratchet teeth of the ratchet, and improve the yield rate of the COF carrier tape.

Description

COF carrier tape conveyor

The present invention relates to the technical field of COF carrier tape, and in particular, to a COF carrier tape conveying device.

Carrier Tape refers to a strip-shaped product used in the field of electronic packaging. It has a specific thickness and has holes for holding electronic components and for indexing and positioning equidistantly distributed along its length. positioning holes.

COF (chip-on-film) stands for chip on film. The display driver chip is directly mounted on the flexible circuit board without any packaging form, so as to achieve the purpose of reducing the size and being able to bend freely. COF flexible packaging carrier tape is a flexible circuit board that connects semiconductor display chips and terminal products. It is a key material in the COF packaging process; COF packaging display driver chips are currently mainly used in display screens for TVs, computers, mobile phones and other products, and are LCD/ One of the key core chips of OLED displays.

In the production process of COF carrier tape, the COF carrier tape needs to be tested and packaged. In the prior art, when the COF carrier tape is tested or packaged, the COF carrier tape is fixed by passing the through holes on both sides of the edge of the COF carrier tape through the ratchet teeth on the ratchet wheel. As shown in Figure 1, the bottom edge of the ratchet teeth on the ratchet wheel is relatively sharp. During the transportation process of the COF carrier tape, it is easy to cause the through holes of the COF carrier tape to be worn or even torn, resulting in substandard quality of the COF carrier tape.

The technical problem to be solved by the present invention is to solve the technical problem in the prior art that the conveying device of the COF carrier tape easily causes the quality of the COF carrier tape to be unqualified. The invention provides a COF carrier tape conveying device, which realizes stable transmission of the COF carrier tape through the extrusion force between the auxiliary transmission mechanism and the main transmission mechanism, can prevent the COF carrier tape from tearing, and helps to improve product yield.

The technical solution adopted by the present invention to solve the technical problem is: a COF carrier tape conveying device, including:

drive mechanism, and

Main transmission mechanism, the main transmission mechanism is connected with the driving mechanism,

A first auxiliary transmission mechanism, the first auxiliary transmission mechanism is connected to the driving mechanism, and the first auxiliary transmission mechanism is located above the main transmission mechanism,

a second auxiliary transmission mechanism, the second auxiliary transmission mechanism is connected to the main transmission mechanism, and the second auxiliary transmission mechanism is located in front of the main transmission mechanism,

Wherein, when the COF carrier tape is transported linearly, the COF carrier tape is located between the main transmission mechanism and the first auxiliary transmission mechanism; when the driving mechanism is started, the main transmission mechanism can transport the COF carrier tape, and at the same time, all The first auxiliary transmission mechanism can press both sides of the COF carrier tape to keep the COF carrier tape flat during linear transportation;

When the COF carrier tape is transported at an angle, the COF carrier tape is simultaneously located between the main transmission mechanism and the first auxiliary transmission mechanism and between the main transmission mechanism and the second auxiliary transmission mechanism; when the driving mechanism starts At this time, the main transmission mechanism can transport the COF carrier tape, and at the same time, the first auxiliary transmission mechanism and the second auxiliary transmission mechanism can press the edges on both sides of the COF carrier tape, so that the COF carrier tape bends Keep the corners flat during conveying.

Through the first auxiliary transmission mechanism and the second auxiliary transmission mechanism, the present invention can realize linear transportation and angular transportation of the COF carrier tape to meet more needs. At the same time, the first auxiliary transmission mechanism and the second auxiliary transmission mechanism can press both sides of the edges of the COF carrier tape against the main transmission mechanism. On the one hand, the COF carrier tape can be kept flat during the transportation process and prevent it from warping; on the other hand, the COF carrier tape can be kept flat during transportation. On the other hand, it can protect the COF carrier tape from damage during transportation, improve the yield of COF carrier tape packaging or testing, and save costs.

Further, the axis center of the main transmission mechanism is O, the axis center of the first auxiliary transmission mechanism is A, the axis center of the second auxiliary transmission mechanism is B, the axis center A, the axis center O and the axis center B are connected to form an isosceles right triangle, where ∠AOB is a right angle.

Further, the first auxiliary transmission mechanism includes: a first fixed shaft, the first fixed shaft is connected to the driving mechanism, A first pressing wheel body, the first pressing wheel body is sleeved on the first fixed shaft, The first left fixing part is installed on the left side of the first pressing wheel body, and the right end surface of the first left fixing part closely fits the left end surface of the first pressing wheel body. , The first right fixing part is installed on the right side of the first pressing wheel body, and the left end surface of the first right fixing part closely fits the right end surface of the first pressing wheel body. .

Further, the first auxiliary transmission mechanism also includes: a first left rubber ring and a first right rubber ring. The first left rubber ring is sleeved on the first left fixed part, and the first right rubber ring is sleeved on the first left fixed part. Provided on the first right fixing part, the distance between the first left rubber ring and the first right rubber ring matches the width of the COF carrier tape.

Further, the second auxiliary transmission mechanism includes: a second fixed shaft, the second fixed shaft is connected to the driving mechanism, a second pressing wheel body, the second pressing wheel body is sleeved on the second fixed shaft, The second left fixing part is installed on the left side of the second press wheel body, and the right end surface of the second left fixing part closely fits the left end surface of the second press wheel body. , The second right fixing part is installed on the right side of the second pressing wheel body, and the left end surface of the second right fixing part closely fits the right end surface of the second pressing wheel body. .

Further, the second auxiliary transmission mechanism also includes: a second left rubber ring and a second right rubber ring. The second left rubber ring is sleeved on the second left fixed part, and the second right rubber ring is sleeved on the second left fixing part. Provided on the second right fixing part, the distance between the second left rubber ring and the second right rubber ring matches the width of the COF carrier tape.

Further, the COF carrier tape conveying device further includes: a mounting plate connected to the driving mechanism, the mounting plate is provided with a first connection part and a second connection part, the first connection part is connected to the The first auxiliary transmission mechanism is connected, and the second connecting part is connected with the second auxiliary transmission mechanism.

Further, the main transmission mechanism includes: Main pressure wheel, the main pressure wheel is installed on the driving mechanism, the length of the main pressure wheel is greater than the width of the COF carrier tape, Main transmission gear, the main transmission gear is installed on the driving mechanism, and the left end surface of the main transmission gear closely fits the right end surface of the main pressure wheel.

Further, the first auxiliary transmission mechanism also includes a first transmission gear, and the first transmission gear is installed on the first fixed shaft; the second auxiliary transmission mechanism also includes a second transmission gear, and the third transmission gear is mounted on the first fixed shaft. Two transmission gears are installed on the second fixed shaft; when the COF carrier tape is transported, the first transmission gear and the second transmission gear mesh with the main transmission gear respectively.

Further, the ratio of the number of teeth of the first transmission gear to the number of teeth of the main transmission gear is 1:2, and the ratio of the number of teeth of the second transmission gear to the number of teeth of the main transmission gear is 1:2.

The beneficial effects of the present invention are: The present invention can realize linear or angular transportation of COF carrier tape through the driving mechanism, the main transmission mechanism, the first auxiliary transmission mechanism and the second auxiliary transmission mechanism to meet different needs. Moreover, the first auxiliary transmission mechanism and the second auxiliary transmission mechanism cooperate with the main transmission mechanism to compress the edges of the COF carrier tape on both sides to ensure the stability of the COF carrier tape during transportation. At the same time, the present invention uses extrusion force to compress the COF carrier tape, which can prevent the COF carrier tape from being torn and damaged due to the ratchet teeth of the ratchet wheel, and improves the yield rate of the COF carrier tape.

The present invention will now be described in further detail with reference to the drawings. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the structures related to the present invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise", "Axis", The orientation or positional relationship indicated by "radial direction", "circumferential direction", etc. are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply the device or element referred to. Must have a specific orientation, be constructed and operate in a specific orientation and are therefore not to be construed as limitations of the invention. In addition, features defined as “first” and “second” may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise stated, "plural" means two or more than two.

In the description of the present invention, it should be noted that, unless otherwise clearly stated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. Connection, or integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

As shown in Figures 2 to 11, the COF carrier tape conveying device according to the embodiment of the present invention includes: a driving mechanism 1, a main transmission mechanism 2, a first auxiliary transmission mechanism 3 and a second auxiliary transmission mechanism 5. The main transmission mechanism 2 and the driving mechanism Mechanism 1 is connected, the first auxiliary transmission mechanism 3 is connected to the driving mechanism 1, the first auxiliary transmission mechanism 3 is located above the main transmission mechanism 2, the second auxiliary transmission mechanism 5 is connected to the main transmission mechanism 2, the second auxiliary transmission mechanism 5 is located above In front of the main transmission mechanism 2. Among them, when the COF carrier tape 4 is transported linearly, the COF carrier tape 4 is located between the main transmission mechanism 2 and the first auxiliary transmission mechanism 3; when the driving mechanism 1 is started, the main transmission mechanism 2 can transport the COF carrier tape 4, and at the same time, The first auxiliary transmission mechanism 3 can press both sides of the COF carrier tape 4 so that the COF carrier tape 4 remains flat during linear transportation. When the COF carrier tape 4 is conveyed at an angle, the COF carrier tape 4 is simultaneously located between the main transmission mechanism 2 and the first auxiliary transmission mechanism 3 and between the main transmission mechanism 2 and the second auxiliary transmission mechanism 5; when the driving mechanism 1 starts , the main transmission mechanism 2 can transport the COF carrier tape 4, and at the same time, the first auxiliary transmission mechanism 3 and the second auxiliary transmission mechanism 5 can press the edges on both sides of the COF carrier tape 4, so that the COF carrier tape 4 can be conveyed in the corner. Keep it flat. The driving mechanism 1 may be a motor, for example, and the main transmission mechanism 2 is installed on the output shaft of the motor.

The beneficial effect of the present invention is that the first auxiliary transmission mechanism 3 and the second auxiliary transmission mechanism 5 can realize linear transportation and angular transportation of the COF carrier tape 4 to meet more needs. At the same time, the first auxiliary transmission mechanism 3 and the second auxiliary transmission mechanism 5 can press both sides of the edge of the COF carrier tape 4 against the main transmission mechanism 2. On the one hand, the COF carrier tape 4 can be kept flat during the transportation process to prevent on the other hand, it can protect the COF carrier tape 4 from being damaged during transportation, improve the yield of packaging or testing of the COF carrier tape 4, and save costs.

According to an embodiment of the present invention, assume that the axis center of the main transmission mechanism 2 is O, the axis center of the first auxiliary transmission mechanism 3 is A, and the axis center of the second auxiliary transmission mechanism 5 is B. The axis center A and the axis O Connected to axis B, an isosceles right triangle can be formed, in which ∠AOB is a right angle. In this way, when the COF carrier tape 4 is conveyed at an angle, the COF carrier tape 4 can be stabilized between the main transmission mechanism 2 and the first auxiliary transmission mechanism 3, and between the main transmission mechanism 2 and the second auxiliary transmission mechanism 5. Press down to prevent slipping and deflection during transportation, causing the COF carrier tape 4 to tear or wrinkle.

According to an embodiment of the present invention, the first auxiliary transmission mechanism 3 includes a first fixed shaft 31, a first pressing wheel body 32, a first left fixed part 33 and a first right fixed part 34. The first fixed shaft 31 and the driving mechanism 1 connection, the first pressing wheel body 32 is sleeved on the first fixed shaft 31, the first pressing wheel body 32 is fixedly connected to the first fixed shaft 31, and the first left fixed part 33 is installed on the left side of the first pressing wheel body 32 , and the right end surface of the first left fixing part 33 is in close contact with the left end surface of the first pressing wheel body 32, the first right fixing part 34 is installed on the right side of the first pressing wheel body 32, and the first right fixing part 34 is The left end surface is in close contact with the right end surface of the first pressure wheel body 32 . Specifically, the first left fixing part 33 can be fixed on the left end surface of the first pressing wheel body 32 through positioning pins and screws, and the first right fixing part 34 can be fixed on the right end surface of the first pressing wheel body 32 through positioning pins and screws. . The first left fixing part 33 is provided with a first skirt 331 on the outer peripheral surface near the left end, and the first right fixing part 34 is provided with a second skirt 341 on the outer peripheral surface near the right end. The outer diameters of the first roller body 32, the first left fixing part 33 and the first right fixing part 34 are all D1, the outer diameters of the first skirt 331 and the second skirt 341 are all D2, and D2 is larger than D1, for example , the difference between D2 and D1 is 0.5mm. In other words, there is a gap between the first pressing wheel body 32 and the main transmission mechanism 2 for the COF carrier tape 4 to pass through, and the distance between the first skirt 331 and the second skirt 341 is greater than the width of the COF carrier tape 4 , to prevent the COF carrier tape 4 from being crushed during transportation. The thickness of COF carrier tape 4 is generally 0.05mm, and the width of COF carrier tape 4 can be 35mm, 48mm or 70mm, which can be selected according to actual needs.

Further, the first auxiliary transmission mechanism 3 also includes a first left rubber ring 35 and a first right rubber ring 36. The first left rubber ring 35 is sleeved on the first left fixed part 33, and the first right rubber ring 36 is sleeved on the first left fixing part 33. On the first right fixing part 34 , the distance between the first left rubber ring 35 and the first right rubber ring 36 matches the width of the COF carrier tape 4 . Specifically, the first left fixing part 33 is provided with a first annular groove 332, the first right fixing part 34 is provided with a second annular groove 342, and a part of the first left rubber ring 35 is installed on the first ring. In the circular groove 332, a part of the first right rubber ring 36 is installed in the second annular groove 342. When the COF carrier tape 4 is transported, the first left rubber ring 35 and the first right rubber ring 36 are respectively connected with the COF carrier tape. 4 are in contact with both sides of the edge. At the same time, the first left rubber ring 35 and the first right rubber ring 36 will be squeezed and deformed due to external force, so that the first left rubber ring 35 and the first right rubber ring 36 are in contact with the COF carrier tape. The contact surface of the COF carrier tape 4 can form a plane P, which increases the contact area with the COF carrier tape 4 and makes the COF carrier tape 4 more stable during the transportation process. Specifically, the Shore hardness of the first left rubber ring 35 and the first right rubber ring 36 is preferably 25-30. The larger the Shore hardness value, the harder the rubber ring is, and the rubber ring selected in this embodiment is softer. The material is easy to be squeezed and deformed. If a harder material is chosen, the rubber ring will not easily form a flat surface when it is squeezed, and the COF carrier tape 4 cannot be pressed and stabilized well. Specifically, the size of the first left rubber ring 35 and the first right rubber ring 36 should not be too large, because the middle area of the COF carrier tape 4 is an electronic circuit, and the edges on both sides of the COF carrier tape 4 are connection areas (that is, there are no electronic circuits). circuit), therefore, the width of the plane P formed by the extrusion of the first left rubber ring 35 and the first right rubber ring 36 should be located in the connection area to prevent the electronic circuit in the middle area from being crushed (generally the electronic circuit is very fine, to the micron level).

According to an embodiment of the present invention, the second auxiliary transmission mechanism 5 includes: a second fixed shaft 51, a second pressing wheel body 52, a second left fixed part 53 and a second right fixed part 54. The second fixed shaft 51 and the driving Mechanism 1 is connected, the second pressing wheel body 52 is sleeved on the second fixed shaft 51 , the second pressing wheel body 52 is fixedly connected to the second fixed shaft 51 , and the second left fixed part 53 is installed on the second pressing wheel body 52 The left side, and the right end surface of the second left fixing part 53 is in close contact with the left end surface of the second roller body 52 , the second right fixing part 54 is installed on the right side of the second press wheel body 52 , and the second right fixing part 54 The left end surface of the second pressure roller body 52 is in close contact with the right end surface of the second pressure roller body 52 . The second left fixing part 53 is provided with a third skirt 531 on the outer peripheral surface near the left end, and the second right fixing part 54 is provided with a fourth skirt 541 on the outer peripheral surface near the right end. The outer diameters of the second pressing wheel body 52 , the second left fixing part 53 and the second right fixing part 54 are also all D1, and the outer diameters of the third skirt 531 and the fourth skirt 541 are also D2, and D2 is larger than D1 , for example, the difference between D2 and D1 is 0.5mm. In other words, there is a gap between the second pressing wheel body 52 and the main transmission mechanism 2 for the COF carrier tape 4 to pass through, and the distance between the third skirt 531 and the fourth skirt 541 is greater than the width of the COF carrier tape 4 , to prevent the COF carrier tape 4 from being crushed during transportation.

Further, the second auxiliary transmission mechanism 5 also includes a second left rubber ring 55 and a second right rubber ring 56. The second left rubber ring 55 is sleeved on the second left fixed part 53, and the second right rubber ring 56 is sleeved on the second left fixing part 53. On the second right fixing part 54 , the distance between the second left rubber ring 55 and the second right rubber ring 56 matches the width of the COF carrier tape 4 . Specifically, the second left fixing part 53 is provided with a third annular groove 532, the second right fixing part 54 is provided with a fourth annular groove 542, and a part of the second left rubber ring 55 is installed in the third annular groove. In the groove 532, a part of the second right rubber ring 56 is installed in the fourth annular groove 542. When the COF carrier tape 4 is transported, the second left rubber ring 55 and the second right rubber ring 56 are respectively connected with the COF carrier tape 4. Both sides of the edge are in contact. At the same time, the second left rubber ring 55 and the second right rubber ring 56 will be extruded and deformed due to external force, so that the second left rubber ring 55 , the second right rubber ring 56 and the COF carrier tape 4 are in contact with each other. The contact surfaces can all form a flat surface to increase the contact area with the COF carrier tape 4, making the COF carrier tape 4 more stable during the transportation process. Specifically, the Shore hardness of the second left rubber ring 55 and the second right rubber ring 56 is preferably 25-30. The larger the Shore hardness value, the harder the rubber ring is, and the rubber ring selected in this embodiment is softer. The material is easy to be squeezed and deformed. If a harder material is chosen, the rubber ring will not easily form a flat surface when it is squeezed, and the COF carrier tape 4 cannot be pressed and stabilized well. Similarly, the size of the second left rubber ring 55 and the second right rubber ring 56 should not be too large, and the width of the plane P formed by the extrusion of the second left rubber ring 55 and the second right rubber ring 56 should also be located within the connection area. , to prevent the electronic circuits in the middle area from being crushed.

According to an embodiment of the present invention, the COF carrier tape conveying device further includes a mounting plate 6. The mounting plate 6 is connected to the driving mechanism 1. The mounting plate 6 is provided with a first connection part 61 and a second connection part 62. The first connection part 61 is connected to the first auxiliary transmission mechanism 3 , and the second connection part 62 is connected to the second auxiliary transmission mechanism 5 . Specifically, the mounting plate 6 is sleeved on the output shaft of the driving mechanism 1 , and the mounting plate 6 is fixedly connected to the driving mechanism 1 . A first connecting portion 61 and a second connecting portion 62 are provided on the upper side of the mounting plate 6 . The first connecting portion 61 and the second connecting portion 62 are symmetrically arranged along the vertical centerline of the mounting plate 6 . The first connection element 7 is installed on the first connection part 61 , and the second connection element 8 is installed on the second connection part 62 . Specifically, the first connecting element 7 includes a first bolt 71, a first nut 72, a first torsion spring 73 and a first connecting plate 74. One end of the first connecting plate 74 is sleeved on the first bolt 71, and the first connecting plate 74 is sleeved on the first bolt 71. The other end of the plate 74 is connected to the first fixed shaft 31. The first torsion spring 73 is also sleeved on the first bolt 71. The first bolt 71 penetrates the first connecting portion 61. The first nut 72 is connected to the first bolt 71. They are connected to limit the first connecting plate 74 and the first torsion spring 73 . It should be noted that the first connecting plate 74 and the first torsion spring 73 are respectively located on both sides of the first connecting part 61 . One end of the first torsion spring 73 is located above the first connecting plate 74 and in contact with the first connecting plate 74 , so that the first auxiliary transmission mechanism 3 can be in close contact with the surface of the main transmission mechanism 2 . Specifically, the second connecting element 8 includes a second bolt 81, a second nut 82, a second torsion spring 83 and a second connecting plate 84. One end of the second connecting plate 84 is sleeved on the second bolt 81, and the second connecting plate 84 is sleeved on the second bolt 81. The other end of the plate 84 is connected to the second fixed shaft 51. The second torsion spring 83 is also sleeved on the second bolt 81. The second bolt 81 penetrates the second connecting portion 62. The second nut 82 is connected to the second bolt 81. They are connected to limit the second connecting plate 84 and the second torsion spring 83 . It should be noted that the second connecting plate 84 and the second torsion spring 83 are respectively located on both sides of the second connecting part 62 . One end of the second torsion spring 83 is located above the second connecting plate 84 and in contact with the second connecting plate 84 , so that the second auxiliary transmission mechanism 5 can be in close contact with the surface of the main transmission mechanism 2 . When the COF carrier tape 4 is placed on the main transmission mechanism 2, the first auxiliary transmission mechanism 3 can be lifted by the first torsion spring 73, and the second auxiliary transmission mechanism 5 can be lifted by the second torsion spring 83. At this time, The COF carrier tape 4 can be placed; after placement, the first auxiliary transmission mechanism 3 will be pressed against the surface of the main transmission mechanism 2 under the action of the first torsion spring 73, and the second auxiliary transmission mechanism 5 will be pressed against the surface of the main transmission mechanism 2 under the action of the second torsion spring 83. The bottom will be pressed tightly against the surface of the main transmission mechanism 2.

According to an embodiment of the present invention, the main transmission mechanism 2 includes a main pressure wheel 21 and a main transmission gear 22. The main pressure wheel 21 is installed on the driving mechanism 1. The length of the main pressure wheel 21 is greater than the width of the COF carrier tape 4. The gear 22 is installed on the driving mechanism 1 , and the left end surface of the main transmission gear 22 is in close contact with the right end surface of the main pressure wheel 21 . Specifically, the surface of the main pressure wheel 21 can be made of rubber material with a Shore hardness of 85-90. The rubber material has a certain friction force, which can prevent the COF carrier tape 4 from slipping and tearing during the transportation process. At the same time, the rubber material needs to have A certain hardness. If it is too soft, it will not be conducive to transportation. The main transmission gear 22 and the main pressure wheel 21 are both sleeved on the output shaft of the driving mechanism 1 , and the main transmission gear 22 and the main pressure wheel 21 can rotate synchronously under the action of the driving mechanism 1 .

Further, the first auxiliary transmission mechanism 3 also includes a first transmission gear 37 , which is installed on the first fixed shaft 31 , and is fixedly connected to the first fixed shaft 31 . The second auxiliary transmission mechanism 5 also includes a second transmission gear 57 , the second transmission gear 57 is installed on the second fixed shaft 51 , and the second transmission gear 57 is fixedly connected to the second fixed shaft 51 . When the COF carrier tape 4 is transported, the first transmission gear 37 and the second transmission gear 57 mesh with the main transmission gear 22 respectively. Specifically, the first transmission gear 37, the main transmission gear 22 and the second transmission gear 57 are located on the same plane. Assume that the outer diameter of the first transmission gear 37 is d1, the outer diameter of the main transmission gear 22 is d2, and the outer diameter of the second transmission gear 37 is d2. The outer diameter of the gear 57 is d3, d2=2d1=2d3. In other words, the outer diameter of the first transmission gear 37 and the outer diameter of the second transmission gear 57 are equal, and the outer diameter of the main transmission gear 22 is the first transmission gear. 37 and twice the outer diameter of the second transmission gear 57. Further, the ratio of the number of teeth of the first transmission gear 37 to the number of teeth of the main transmission gear 22 is 1:2, and the ratio of the number of teeth of the second transmission gear 57 to the number of teeth of the main transmission gear 22 is 1:2. The first transmission gear 37 The teeth of the main transmission gear 22 and the second transmission gear 57 are the same in size and shape. The present invention designs the outer diameter and number of teeth of the first transmission gear 37, the main transmission gear 22 and the second transmission gear 57. When the main transmission gear 22 rotates, the first transmission gear 37 and the second transmission gear 57 can It is driven by the main transmission gear 22 to rotate synchronously, and the first transmission gear 37 and the second transmission gear 57 rotate through the same path, so that the COF carrier tape 4 can remain stable during the transmission process. Furthermore, when the COF carrier tape 4 needs to be transported at an angle, the outer diameter of the main pressing wheel 21 is preferably set to 1.5-2 times the width of the COF carrier tape. If the outer diameter of the main pressing wheel 21 is too small, then when the COF carrier tape 4 When the belt 4 is conveyed at an angle, the electronic circuits on the surface of the COF carrier tape 4 may be damaged due to bending.

According to an embodiment of the present invention, the COF carrier tape conveying device also includes guide grooves 9. The guide grooves 9 can be disposed on the front and rear sides of the main transmission mechanism 2 for limiting element guidance of the COF carrier tape 4 so that the COF carrier tape The conveying of belt 4 is more stable.

The working process of the present invention is to first lift the first auxiliary transmission mechanism 3 and the second auxiliary transmission mechanism 5, and place the COF carrier tape 4 on the surface of the main transmission mechanism 2. At the same time, the COF carrier tape 4 is located in the guide groove 9 . After the COF carrier tape 4 is placed, put down the first auxiliary transmission mechanism 3 and the second auxiliary transmission mechanism 5, and press the edges of the COF carrier tape 4 on both sides. At this time, the first left rubber ring 35, the first right rubber ring 36, the second left rubber ring 55 and the second right rubber ring 56 are all extruded and deformed. Start the driving mechanism 1. At this time, the main pressure wheel 21 and the main transmission gear 22 rotate together with the output shaft of the driving mechanism 1. The main transmission gear 22 can drive the first transmission gear 37 and the second transmission gear 57 to rotate synchronously. It should be noted that Yes, the front end of the COF carrier tape 4 is wound by other equipment (such as the driving wheel of testing equipment or packaging equipment). The moving speed of the COF carrier tape 4 is preferably the same as the rotation speed of the main pressure wheel 21, which can further ensure that the COF The carrier tape 4 is transported stably and can prevent damage to the COF carrier tape 4.

Through the driving mechanism 1, the main transmission mechanism 2, the first auxiliary transmission mechanism 3 and the second auxiliary transmission mechanism 5, the present invention can realize the linear or angled transportation of the COF carrier tape 4 to meet different needs. Moreover, the first auxiliary transmission mechanism 3 and the second auxiliary transmission mechanism 5 cooperate with the main transmission mechanism 2 respectively to compress the edges of the COF carrier tape 4 on both sides to ensure the stability of the COF carrier tape 4 during the transportation process. sex. At the same time, the present invention uses extrusion force to compress the COF carrier tape 4, which can prevent the COF carrier tape 4 from being torn and damaged due to the ratchet teeth of the ratchet wheel, and improves the yield rate of the COF carrier tape 4.

Taking the above-mentioned ideal embodiments of the present invention as inspiration and through the above description, relevant workers can make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the invention is not limited to the content in the description, and the technical scope must be determined by applying for a patent.

1: Driving mechanism 2: Main transmission mechanism 3: First auxiliary transmission mechanism 4:COF carrier tape 5: Second auxiliary transmission mechanism 21:Main pressure wheel 22:Main transmission gear 31:First fixed axis 32:First pressure wheel body 33: First left fixed part 34: First right fixed part 331: First skirt 341:Second skirt 35: First left rubber ring 36: First right rubber ring 37:First transmission gear 332: First annular groove 342: Second annular groove 51:Second fixed axis 52:Second pressure wheel body 53: Second left fixed part 54:Second right fixed part 531:Third skirt 541:Fourth skirt 55:Second left rubber ring 56: Second right rubber ring 57:Second transmission gear 532:Third annular groove 542: Fourth annular groove 6:Mounting plate 61: First connection part 62: Second connection part 7: First connecting element 8: Second connecting element 71:First bolt 72:First nut 73:First torsion spring 74: First connection board 81:Second bolt 82:Second nut 83: Second torsion spring 84:Second connecting plate 9: Guide groove

Figure 1 is a schematic diagram of a ratchet in the prior art. Figure 2 is a schematic three-dimensional structural diagram of the COF carrier tape conveying device of the present invention. Figure 3 is a schematic plan view of the COF carrier tape conveying device of the present invention. Figure 4 is a cross-sectional view of the first auxiliary transmission mechanism of the present invention. Fig. 5 is a partial enlarged view of Fig. 3 of the present invention. Figure 6 is a schematic diagram of the first auxiliary transmission mechanism and the main transmission mechanism of the present invention being pressed together. Figure 7 is a cross-sectional view of the second auxiliary transmission mechanism of the present invention. Fig. 8 is a partial enlarged view of Fig. 6 of the present invention. Figure 9 is a schematic diagram of the second auxiliary transmission mechanism and the main transmission mechanism of the present invention being pressed together. Figure 10 is a schematic diagram of the meshing of the main transmission gear, the first transmission gear and the second transmission gear of the present invention. Figure 11 is a schematic structural diagram of the first connecting element and the second connecting element of the present invention.

1: Driving mechanism

2: Main transmission mechanism

3: First auxiliary transmission mechanism

4:COF carrier tape

5: Second auxiliary transmission mechanism

6:Mounting plate

7: First connecting element

8: Second connecting element

9: Guide groove

Claims (10)

A COF carrier tape conveying device, which includes: a drive mechanism (1), and A main transmission mechanism (2), the main transmission mechanism (2) is connected with the driving mechanism (1), A first auxiliary transmission mechanism (3), the first auxiliary transmission mechanism (3) is connected to the driving mechanism (1), and the first auxiliary transmission mechanism (3) is located above the main transmission mechanism (2), A second auxiliary transmission mechanism (5), the second auxiliary transmission mechanism (5) is connected to the main transmission mechanism (2), and the second auxiliary transmission mechanism (5) is located in front of the main transmission mechanism (2), Wherein, when a COF carrier tape (4) is conveyed in a straight line, the COF carrier tape (4) is located between the main transmission mechanism (2) and the first auxiliary transmission mechanism (3); when the driving mechanism (1) starts When, the main transmission mechanism (2) can transport the COF carrier tape (4), and at the same time, the first auxiliary transmission mechanism (3) can press both sides of the COF carrier tape (4), so that the COF carrier tape The belt (4) remains flat during straight conveyance; When the COF carrier tape (4) is transported at an angle, the COF carrier tape (4) is simultaneously located between the main transmission mechanism (2) and the first auxiliary transmission mechanism (3) and between the main transmission mechanism (2) and the first auxiliary transmission mechanism (3). between the second auxiliary transmission mechanism (5); when the driving mechanism (1) starts, the main transmission mechanism (2) can transport the COF carrier tape (4), and at the same time, the first auxiliary transmission mechanism (3) The second auxiliary transmission mechanism (5) can press both sides of the COF carrier tape (4) so that the COF carrier tape (4) remains flat during the curved conveying process. The COF carrier tape conveying device as claimed in claim 1, wherein the axis center of the main transmission mechanism (2) is O, the axis center of the first auxiliary transmission mechanism (3) is A, and the second auxiliary transmission mechanism (3) 5) The axis center is B. Axis A, axis O and axis B are connected to form an isosceles right triangle, in which ∠AOB is a right angle. The COF carrier tape conveying device as claimed in claim 1, wherein the first auxiliary transmission mechanism (3) includes: a first fixed shaft (31), the first fixed shaft (31) is connected to the driving mechanism (1), A first pressing wheel body (32), the first pressing wheel body (32) is sleeved on the first fixed shaft (31), A first left fixing part (33), the first left fixing part (33) is installed on the left side of the first roller body (32), and the right end surface of the first left fixing part (33) is in contact with the first The left end surface of the pressure wheel body (32) fits tightly, A first right fixing part (34), the first right fixing part (34) is installed on the right side of the first roller body (32), and the left end surface of the first right fixing part (34) is in contact with the first The right end surface of the pressure wheel body (32) is tightly fitted. The COF carrier tape conveying device as claimed in claim 3, wherein the first auxiliary transmission mechanism (3) also includes: a first left rubber ring (35) and a first right rubber ring (36), the first The left rubber ring (35) is sleeved on the first left fixed part (33), the first right rubber ring (36) is sleeved on the first right fixed part (34), and the first left rubber ring (36) is sleeved on the first right fixed part (34). The distance between 35) and the first right rubber ring (36) matches the width of the COF carrier tape (4). The COF carrier tape conveying device as claimed in claim 3, wherein the second auxiliary transmission mechanism (5) includes: a second fixed shaft (51), the second fixed shaft (51) is connected to the driving mechanism (1), a second pressing wheel body (52), the second pressing wheel body (52) is sleeved on the second fixed shaft (51), A second left fixing part (53), the second left fixing part (53) is installed on the left side of the second roller body (52), and the right end surface of the second left fixing part (53) is in contact with the second The left end surface of the pressure wheel body (52) fits tightly, A second right fixing part (54), the second right fixing part (54) is installed on the right side of the second roller body (52), and the left end surface of the second right fixing part (54) is in contact with the second The right end surface of the pressure wheel body (52) is tightly fitted. The COF carrier tape conveying device as claimed in claim 5, wherein the second auxiliary transmission mechanism (5) also includes: a second left rubber ring (55) and a second right rubber ring (56), the second The left rubber ring (55) is sleeved on the second left fixed part (53), the second right rubber ring (56) is sleeved on the second right fixed part (54), and the second left rubber ring (56) is sleeved on the second right fixed part (54). The distance between 55) and the second right rubber ring (56) matches the width of the COF carrier tape (4). The COF carrier tape conveying device as described in claim 1, wherein the COF carrier tape conveying device further includes: a mounting plate (6), the mounting plate (6) is connected to the driving mechanism (1), the mounting plate (6) ) is provided with a first connecting part (61) and a second connecting part (62). The first connecting part (61) is connected to the first auxiliary transmission mechanism (3), and the second connecting part (62) is connected to the first auxiliary transmission mechanism (3). The second auxiliary transmission mechanism (5) is connected. The COF carrier tape conveying device as described in claim 5, wherein the main transmission mechanism (2) includes: A main pressure wheel (21), the main pressure wheel (21) is installed on the driving mechanism (1), the length of the main pressure wheel (21) is greater than the width of the COF carrier tape (4), A main transmission gear (22), the main transmission gear (22) is installed on the driving mechanism (1), and the left end surface of the main transmission gear (22) closely fits the right end surface of the main pressure wheel (21) . The COF carrier tape conveying device according to claim 8, wherein the first auxiliary transmission mechanism (3) also includes a first transmission gear (37), and the first transmission gear (37) is installed on the first fixed shaft. (31); the second auxiliary transmission mechanism (5) also includes a second transmission gear (57), which is installed on the second fixed shaft (51); when transporting the COF load When the belt (4) is in use, the first transmission gear (37) and the second transmission gear (57) mesh with the main transmission gear (22) respectively. The COF carrier tape conveying device according to claim 9, wherein the ratio of the number of teeth of the first transmission gear (37) to the number of teeth of the main transmission gear (22) is 1:2, and the second transmission gear (57) The ratio of the number of teeth to the number of teeth of the main transmission gear (22) is 1:2.