Material belt conveying device

Abstract

The invention relates to a material belt conveying device which comprises a driving assembly and a conveying assembly, the driving assembly comprises a first driving mechanism and a belt carrying wheel, the first driving mechanism is used for driving the belt carrying wheel to rotate, and a first annular groove allowing a COF material belt to be wound is formed in the circumferential surface of the belt carrying wheel; the guide rail assembly comprises a first guide rail and a second guide rail which are distributed in parallel at an interval, a material passing guide groove is defined between the first guide rail and the second guide rail, and the material passing guide groove is in butt joint with the first annular groove so as to bear the COF material belt and enable the COF material belt to be carried; wherein a plurality of first pin teeth are arranged on the surface of the first annular groove in the circumferential direction, a plurality of first tooth openings are formed in the surface of the COF material belt in the length direction of the COF material belt, and the first pin teeth are matched with the first tooth openings in a meshed mode. According to the material belt conveying device, the COF material belt can be stably and accurately conveyed according to the preset belt conveying track, and the COF material belt is effectively prevented from being scratched in the belt conveying process.

Description

Technical Field

[0001] The present application relates to the technical field of chip-on-film production equipment, and in particular to a material belt conveying device. Background Art

[0002] COF (Chip On Film), commonly known as flip chip film, is commonly used in display driver chips. During the COF production process, the COF material strip is generally driven and fed by a feeding device.

[0003] In the related art, the COF material strip is generally driven and fed by roller conveying. The pressure of the roller is not easy to adjust. If the pressure of the roller is too small, it is easy to slip, resulting in conveying failure. If the pressure of the roller is too large, the COF material strip will be indented, causing damage to the COF material strip structure. Summary of the invention

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application provides a tape conveying device that can stably and accurately run the COF tape along a predetermined tape running track, effectively preventing the COF tape from being scratched during the tape running and conveying process.

[0005] The present application provides a material belt conveying device, comprising:

[0006] A driving assembly, comprising a first driving mechanism and a carrier wheel, wherein the first driving mechanism is used to drive the carrier wheel to rotate, and a first annular groove for the COF tape to be wound is formed on the circumferential surface of the carrier wheel;

[0007] A guide rail assembly, comprising a first guide rail and a second guide rail that are parallel and spaced apart, wherein a material transfer guide groove is formed between the first guide rail and the second guide rail, and the material transfer guide groove is connected to the first annular groove to carry the COF material tape and provide the COF material tape for conveying;

[0008] The surface of the first annular groove is provided with a plurality of first needle teeth along the circumferential direction, the surface of the COF material strip is provided with a plurality of first tooth openings along its length direction, and the first needle teeth are meshed with the first tooth openings.

[0009] The material belt conveyor device according to the present application has at least the following beneficial effects:

[0010] The material belt conveying device of the present application is provided by the cooperation of the driving component and the guide rail component. A first annular groove for the COF material belt to be wound and attached is formed on the carrier wheel of the driving component, and the material transfer guide groove of the guide rail component is connected with the first annular groove, and then the COF material belt on the first annular groove is driven to extend to the material transfer guide groove and run on the material transfer guide groove by the way of driving the carrier wheel to rotate by the first driving mechanism. The first needle teeth on the first annular groove are meshed with the first tooth mouth on the COF material belt, so that the COF material belt is stably and accurately conveyed to the material transfer guide groove by the carrier wheel, and the COF material belt is prevented from being scratched by the edge side wall of the first annular groove due to the axial transverse movement of the carrier wheel during the rotation and conveying process of the carrier wheel. It can also constrain the COF material belt to run stably in the material transfer guide groove, and correspondingly prevent the COF material belt from being scratched by the edge side wall of the material transfer guide groove due to the lateral movement of the width direction of the material transfer guide groove during the running process in the material transfer guide groove. In this way, the COF tape can be stably and accurately transported along a predetermined tape track, effectively preventing the COF tape from being scratched during the tape transport process, and achieving stable and accurate transport and feeding of the COF tape.

[0011] In some embodiments, there are two carrier wheels, the first annular grooves on the two carrier wheels are respectively connected to the opposite ends of the material transfer guide groove, and the two carrier wheels rotate synchronously.

[0012] In some embodiments, a second annular groove for winding the COF tape is formed on the circumferential surface of the carrier wheel, the second annular groove is coaxially distributed with the first annular groove, the axial width of the second annular groove is greater than the axial width of the first annular groove, and a plurality of second needle teeth are circumferentially provided on the surface of the second annular groove, the second needle teeth are used to engage with the first tooth mouth.

[0013] In some embodiments, a third annular groove for winding the COF tape is also formed on the circumferential surface of the carrier wheel, the axial width of the third annular groove is greater than the axial width of the second annular groove, and the first annular groove, the second annular groove and the third annular groove are spaced apart in sequence along the radial direction of the carrier wheel, and a plurality of third needle teeth are circumferentially provided on the surface of the third annular groove, and the third needle teeth are used to engage with the first tooth mouth.

[0014] In some embodiments, the guide rail assembly further includes a second driving mechanism, and the second driving mechanism is used to drive the first guide rail and the second guide rail to move toward or away from each other.

[0015] In some embodiments, the end of the first guide rail close to the carrier wheel and the end of the second guide rail close to the carrier wheel are both provided with transition pieces, the transition pieces are used to guide the COF tape to the material transfer guide groove, and the transition pieces are constructed as anti-static structures.

[0016] In some embodiments, the drive assembly also includes a limit member, which is arranged in the docking area between the material transfer guide groove and the first annular groove, and the limit member is supported against the COF material strip in the docking area so that the highest point of the COF material strip in the docking area is located in the extension plane of the material transfer guide groove.

[0017] In some embodiments, the guide rail assembly further includes a pressing assembly, which is spaced apart from the material transfer guide groove, and the pressing assembly presses the COF material tape on the material transfer guide groove each time the COF material tape moves a preset distance along the material transfer guide groove.

[0018] In some embodiments, the drive assembly also includes a position adjustment mechanism, which is used to adjust the position of the carrier wheel relative to the first guide rail so that the axis of the first annular groove is perpendicular to the material transfer guide groove, and the vertical projection of the first annular groove relative to the plane where the material transfer guide groove is located is within the plane where the material transfer guide groove is located.

[0019] In some embodiments, the position adjustment mechanism comprises:

[0020] Pedestal;

[0021] A connecting seat, the connecting seat being slidably mounted on the base so as to be able to slide in a direction perpendicular to the first guide rail;

[0022] A first locking member, used to lock the connecting seat to the base;

[0023] A mounting seat, the mounting seat is arranged on the connecting seat and can swing relative to the connecting seat, the first driving mechanism is arranged on the mounting seat, and the output end of the first driving mechanism is drivingly connected to the tape carrier wheel;

[0024] The second locking member is used to lock the mounting seat to the connecting seat.

[0025] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0027] Figure 1 Schematic diagram of the coordination structure between the material tape conveying device and the COF material tape according to an embodiment of the present application.

[0028] Figure 2 for Figure 1 A partial enlarged view of point A in the middle.

[0029] Figure 3 It is a schematic structural diagram of the material belt conveying device according to an embodiment of the present application.

[0030] Figure 4 for Figure 3 A partial enlarged view of point B in the middle.

[0031] Figure 5 This is a top view of the structure of the material belt conveying device according to an embodiment of the present application.

[0032] Figure 6 This is a control flow chart of the material belt conveying device according to an embodiment of the present application.

[0033] Figure 7 This is a partial structural schematic diagram of a material belt conveying device according to an embodiment of the present application.

[0034] Figure 8 Schematic diagram of the structure of the driving component of the embodiment of the present application.

[0035] Fig. 9 for Figure 8 A partial enlarged view of point C in the middle.

[0036] Fig.10 This is a partial structural schematic diagram of the COF tape according to an embodiment of the present application.

[0037] Description of the accompanying drawings: driving assembly 100; first driving mechanism 110; first driving member 111; reducer 112; tape carrier wheel 120; first annular groove 121; first needle tooth 1211; second annular groove 122; second needle tooth 1221; third annular groove 123; third needle tooth 1231; tape carrier wheel 124; first annular step portion 1241; second annular step portion 1242; third annular step portion 1243; stopper 130; position adjustment mechanism 140; base 141; connecting seat 142; mounting seat 1 43; guide rail assembly 200; first guide rail 210; first step portion 211; second guide rail 220; second step portion 221; material transfer guide groove 230; second drive mechanism 240; second drive member 241; bidirectional screw rod 242; first nut seat 243; second nut seat 244; transition member 250; holding assembly 260; third drive member 261; holding block 262; COF material strip 300; first tooth mouth 310; COF unit 320; frame 400; limiting slide rail 410; controller 500; docking area R. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0039] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0040] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0041] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated 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 the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0042] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0043] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0044] COF (Chip On Film), commonly known as flip chip film, is commonly used in display driver chips. During the COF production process, the COF material strip is generally driven and fed by a feeding device.

[0045] In the related art, the COF material strip is generally driven and fed by roller conveying. The pressure of the roller is not easy to adjust. If the pressure of the roller is too small, it is easy to slip, resulting in conveying failure. If the pressure of the roller is too large, the COF material strip will be indented, causing damage to the COF material strip structure.

[0046] Based on this, see Figure 1 , Figure 2 and Figure 3 An embodiment of the present application provides a material belt conveying device, which includes a driving assembly 100 and a guide rail assembly 200.

[0047] The driving assembly 100 includes a first driving mechanism 110 and a carrier wheel 120 . The first driving mechanism 110 is used to drive the carrier wheel 120 to rotate. A first annular groove 121 for the COF tape 300 to wind around is formed on the circumferential surface of the carrier wheel 120 .

[0048] The guide rail assembly 200 includes a first guide rail 210 and a second guide rail 220 which are parallel and spaced apart. A material transfer guide groove 230 is formed between the first guide rail 210 and the second guide rail 220 . The material transfer guide groove 230 is connected to the first annular groove 121 to carry the COF tape 300 and provide the COF tape 300 for conveying.

[0049] The surface of the first annular groove 121 is provided with a plurality of first needle teeth 1211 along the circumferential direction, and the surface of the COF material strip 300 is provided with a plurality of first tooth openings 310 along its length direction, and the first needle teeth 1211 mesh with the first tooth openings 310 .

[0050] It should be noted that in the drive assembly 100 of the present application, the first drive mechanism 110 can be a rotating drive member such as an electric motor, or a driving structure in which a rotating drive member cooperates with a reducer, such as a driving structure in which a servo motor cooperates with a harmonic reducer. The output end of the first drive mechanism 110 is connected to the carrier wheel 120 to drive the carrier wheel 120 to rotate around its own axis.

[0051] The carrier wheel 120 refers to a rotating wheel for carrying the COF tape 300 . The annular extension direction of the first annular groove 121 on the carrier wheel 120 coincides with the annular extension direction of the carrier wheel 120 . It should be noted that the opening side of the first annular groove 121 faces the radial outside of the carrier wheel 120 .

[0052] After unwinding, the COF tape 300 is wound around a partial arc surface of the first annular groove 121 and then extends toward the material transfer groove 230 . The first driving mechanism 110 drives the carrier wheel 120 to rotate, so that the COF tape 300 moves along the first annular groove 121 and the material transfer groove 230 .

[0053] It is easy to understand that the first annular groove 121 forms stop steps on opposite sides along its own axial direction to stop and limit the two edge portions of the COF tape 300 along the width direction to prevent the COF tape 300 from moving along the axial direction of the carrier wheel 120 and leaving the first annular groove 121.

[0054] See also Figure 2 or Fig. 9 , Fig.10 The surface of the first annular groove 121 is provided with a plurality of first needle teeth 1211 along the circumferential direction. It can be understood that the plurality of first needle teeth 1211 are distributed at intervals along the circumferential surface of the first annular groove 121 in contact with the COF material strip 300, so that all the first needle teeth 1211 are distributed in an annular shape.

[0055] The first needle tooth 1211 can be, but is not limited to, a square ratchet, a regular polygonal ratchet, etc. Correspondingly, the first tooth opening 310 on the COF material strip 300 is a square hole, a regular polygonal deformable hole. When the COF material strip 300 is wrapped around and attached to the surface of the first annular groove 121, the first needle tooth 1211 on the surface of the first annular groove 121 passes through the first tooth opening 310 on the COF material strip 300 to form a meshing fit with the first tooth opening 310.

[0056] Exemplarily, a plurality of first needle teeth 1211 are distributed on two edge walls of the first annular groove 121 in the axial direction, that is, the first annular walls of the first annular groove 121 in the axial direction are evenly provided with annularly distributed first needle teeth 1211. Correspondingly, the first tooth openings 310 spaced apart along the length direction of the COF material strip 300 are evenly provided on two edge surfaces along its width direction.

[0057] In the guide rail assembly 200 of the present application, both the first guide rail 210 and the second guide rail 220 can be linear guide rails, and the material transfer guide groove 230 formed between the two is a linear guide groove. The edge of the first guide rail 210 close to the second guide rail 220 forms a first step portion 211, and the edge of the second guide rail 220 close to the first guide rail 210 forms a second step portion 221. The first step portion 211 and the second step portion 221 are symmetrically distributed relative to the radial cross section of the first annular groove 121, and the material transfer guide groove 230 is surrounded by the first step portion 211 and the second step portion 221.

[0058] It can be understood that the step depth of the first step portion 211 or the second step portion 221 is the depth of the material transfer guide groove 230, and the first step portion 211 and the second step portion 221 constitute two stop steps along the width direction of the material transfer guide groove 230 to stop and limit the two edge portions of the COF material strip 300 along the width direction to prevent the COF material strip 300 from escaping from the material transfer guide groove 230 when moving along the material transfer guide groove 230.

[0059] It is not difficult to understand that the material tape conveying device of the embodiment of the present application, through the coordinated arrangement of the driving component 100 and the guide rail component 200, forms a first annular groove 121 on the carrier wheel 120 of the driving component 100 for the COF material tape 300 to be attached thereto, and makes the material transfer guide groove 230 of the guide rail component 200 dock and connect with the first annular groove 121, and then drives the COF material tape 300 on the first annular groove 121 to extend to the material transfer guide groove 230 and run on the material transfer guide groove 230 by means of the first driving mechanism 110 to drive the carrier wheel 120 to rotate. By meshing the first needle teeth 1211 on the first annular groove 121 with the first tooth opening 310 on the COF material tape 300, the COF material tape 300 is stably and accurately conveyed to the feed guide groove 230 by the carrier wheel 120, thereby preventing the COF material tape 300 from shifting laterally along the axial direction of the carrier wheel 120 during the rotation and conveying process of the carrier wheel 120, thereby preventing the COF material tape 300 from being scratched by the edge side wall of the first annular groove 121. The COF material tape 300 can also be constrained to run stably in the feed guide groove 230, thereby preventing the COF material tape 300 from shifting laterally along the width direction of the feed guide groove 230 during the feeding process in the feed guide groove 230, thereby preventing the COF material tape 300 from being scratched by the edge side wall of the feed guide groove 230.

[0060] In this way, the COF tape 300 can be stably and accurately transported along a predetermined transport track, effectively preventing the COF tape 300 from being scratched during the transport process, and achieving stable and accurate transport and feeding of the COF tape 300.

[0061] In some implementations of this application, see Figure 1 , Figure 5 and Figure 6 The tape carrier wheels 120 have two first annular grooves 121 on the two tape carrier wheels 120 respectively dock with the opposite ends of the material transfer guide groove 230, and the two tape carrier wheels 120 rotate synchronously.

[0062] Specifically, the first driving mechanism 110 has two, the first driving mechanism 110 is a matching structure of a first driving member 111 and a reducer 112, the output end of the first driving member 111 is connected to the carrier wheel 120 through the reducer 112, the first driving member 111 is a servo motor, and the reducer 112 is a harmonic reducer.

[0063] In the embodiment of the present application, the material belt conveying device also includes a controller 500, which is electrically connected to the two first driving members 111. The controller 500 synchronously controls the two first driving members 111 so that the two carrier wheels 120 rotate at the same speed and frequency, so that the COF material belt 300 is driven by the two carrier wheels 120 to stably and accurately move along the first annular groove 121 and the material guide groove 230, so that the COF material belt 300 will not be pulled due to the asynchronous movement of the front and rear ends during the conveying process.

[0064] In some embodiments of the present application, see Figure 7 , Figure 8 and Fig. 9 , see in particular Fig. 9 A second annular groove 122 for the COF tape 300 to be wound is also formed on the circumferential surface of the carrier wheel 120. The second annular groove 122 is coaxially distributed with the first annular groove 121. The axial width of the second annular groove 122 is greater than the axial width of the first annular groove 121. A plurality of second needle teeth 1221 are circumferentially provided on the surface of the second annular groove 122. The second needle teeth 1221 are used to mesh with the first tooth opening 310.

[0065] Specifically, the carrier wheel 120 includes two coaxially connected and spaced carrier wheels 124, the two carrier wheels 124 are symmetrically distributed, and the circumferential surface of each carrier wheel 124 is sequentially formed with a first annular step portion 1241 and a second annular step portion 1242 in the axial outward direction (referring to the direction away from the other carrier wheel), and the diameter of the second annular step portion 1242 is greater than the diameter of the first annular step portion 1241, so that the first annular step portion 1241 and the second annular step portion 1242 are distributed in steps. A plurality of first needle teeth 1211 are regularly arranged on the surface of the first annular step portion 1241 along the circumferential direction, and a second needle tooth 1221 is regularly arranged on the surface of the second annular step portion 1242 along the circumferential direction.

[0066] The two first annular step portions 1241 on the two tape carrier wheels 124 form the above-mentioned first annular groove 121, and the two second annular step portions 1242 on the two tape carrier wheels 124 form the above-mentioned second annular groove 122, so that the diameter and axial width of the second annular groove 122 are respectively larger than the diameter and axial width of the first annular groove 121.

[0067] It can be understood that, through the above-mentioned arrangement, the middle part of the first annular groove 121 and the middle part of the second annular groove 122 can be hollowed out, so that the first annular groove 121 and the second annular groove 122 can both be used for the COF tape 300 to be wound and attached. At the same time, the first annular groove 121 and the second annular groove 122 are adapted to carry two COF tapes 300 of different widths, and when the COF tape 300 of corresponding width is wound and loaded in the second annular groove 122, the first annular groove 121 will not cause structural interference to the loading of the COF tape 300.

[0068] It is not difficult to understand that the embodiment of the present application forms a first annular groove 121 and a second annular groove 122 with different axial widths and diameters on the circumferential surface of the carrier wheel 120, so that the first annular groove 121 and the second annular groove 122 can adapt to loading COF tapes 300 of different widths, thereby improving the adaptability of the carrier wheel 120 to COF tapes 300 of different widths, thereby improving the universality and compatibility of the tape conveying device.

[0069] Further, see Figure 7 , Figure 8 and Fig. 9 , see in particular Fig. 9A third annular groove 123 for the COF tape 300 to be wound is also formed on the circumferential surface of the carrier wheel 120, the axial width of the third annular groove 123 is greater than the axial width of the second annular groove 122, and the first annular groove 121, the second annular groove 122 and the third annular groove 123 are distributed in sequence along the radial direction of the carrier wheel 120, and a plurality of third needle teeth 1231 are circumferentially provided on the surface of the third annular groove 123, and the third needle teeth 1231 are used to mesh with the first tooth opening 310.

[0070] Specifically, each carrier wheel 124 is also formed with a third annular step portion 1243 on the axial outer side of the second annular step portion 1242, and the diameter of the third annular step portion 1243 is greater than the diameter of the second annular step portion 1242, so that the first annular step portion 1241, the second annular step portion 1242 and the third annular step portion 1243 are distributed in a stepped manner along the axial direction of the carrier wheel 124, and the diameters of the three increase successively. A plurality of third needle teeth 1231 are regularly arranged on the surface of the third annular step portion 1243 along the circumferential direction.

[0071] The third annular groove 123 is formed between the two third annular steps 1243 on the two tape carrier wheels 124, so that the diameter and axial width of the third annular groove 123 are respectively larger than the diameter and axial width of the second annular groove 122. In this way, the annular surface where the first annular groove 121 is located, the annular surface where the second annular groove 122 is located, and the annular surface where the third annular groove 123 is located are sequentially spaced along the radial direction of the tape carrier wheel 120.

[0072] It is easy to understand that the first annular groove 121, the second annular groove 122 and the third annular groove 123 are adapted to carry three COF tapes 300 of different widths, and the first annular groove 121, the second annular groove 122 and the third annular groove 123 are spaced apart in sequence along the radial direction of the carrier wheel 120 and will not cause structural interference to the loading of the COF tape 300.

[0073] At the same time, the carrier wheel 120 can be adapted to load COF tapes 300 of three widths, further improving the adaptability of the carrier wheel 120 to COF tapes 300 of different widths, and further improving the universality and compatibility of the tape conveying device.

[0074] Of course, in other embodiments, the two tape-carrying sub-wheels 124 can be relatively far away or close to each other, so as to directly adjust the radial width of the first annular groove 121 , and can also be adapted to load COF tapes 300 of various widths.

[0075] In some embodiments of the present application, see Figure 3 , Figure 5 and Figure 6The guide rail assembly 200 further includes a second driving mechanism 240, which is used to drive the first guide rail 210 and the second guide rail 220 to move toward or away from each other.

[0076] Specifically, the material belt conveying device of the embodiment of the present application also includes a frame 400, and the first guide rail 210 and the second guide rail 220 are both slidably installed on the frame 400. The second driving mechanism 240 can be configured as two ball screw structures to drive the first guide rail 210 and the second guide rail 220 to move toward or away from each other.

[0077] Alternatively, the second drive mechanism 240 can also be configured as two linear cylinder structures, which can also drive the first guide rail 210 and the second guide rail 220 to move toward or away from each other. Of course, the second drive mechanism 240 can also be other linear structures, which will not be repeated.

[0078] It should be noted that in the present application, the central axis of the material transfer guide groove 230 formed between the first guide rail 210 and the second guide rail 220 is within the radial cross-section (extension plane) of the carrier wheel 120, and the radial cross-section of the first annular groove 121, the radial cross-section of the second annular groove 122, the radial cross-section of the third annular groove 123 and the radial cross-section of the carrier wheel 120 coincide.

[0079] The second driving mechanism 240 drives the first guide rail 210 and the second guide rail 220 to move synchronously in the direction of approaching or moving away from each other. With such a configuration, when replacing the COF tape 300 of different widths, after the COF tape 300 is loaded correspondingly onto one of the first annular groove 121, the second annular groove 122 and the third annular groove 123 on the carrier wheel 120, it is only necessary to start the second driving mechanism 240, so that the second driving mechanism 240 drives the first guide rail 210 and the second guide rail 220 to move synchronously in the direction of approaching or moving away from each other by a preset distance according to the width of the COF tape 300, so that the width of the material transfer guide groove 230 is adapted to the COF tape 300 of the corresponding width.

[0080] During this process, since the first guide rail 210 and the second guide rail 220 move synchronously, and the radial cross-sections of the first annular groove 121, the second annular groove 122, the third annular groove 123 and the radial cross-section of the carrier wheel 120 coincide with each other, the central axis of the feed guide groove 230 is always kept in the radial cross-section (extension plane) of the carrier wheel 120, and there is no need to adjust the overall position of the carrier wheel 120 relative to the first guide rail 210 or the second guide rail 220. The feed guide groove 230 can always be parallelly docked with one of the first annular groove 121, the second annular groove 122 and the third annular groove 123, thereby improving the efficiency of loading COF tapes 300 of different widths onto the carrier wheel 120, and correspondingly ensuring the accuracy of the COF tape 300 running along the feed guide groove 230.

[0081] In some embodiments of the present application, see Figure 7 The second driving mechanism 240 includes a second driving member 241, a bidirectional screw rod 242, a first nut seat 243 and a second nut seat 244. The bidirectional screw rod 242 is rotatably mounted on the frame 400 of the material belt conveyor device. The output end of the second driving member 241 is connected to the bidirectional screw rod 242 to drive the bidirectional screw rod 242 to rotate around its own axis. The bidirectional screw rod 242 is perpendicular to the first guide rail 210 or the second guide rail 220, and the bidirectional screw rod 242 has a first thread segment and a second thread segment with opposite rotation directions. The first nut seat 243 and the second nut seat 244 are threadedly matched with the first thread segment and the second thread segment respectively. The second driving member 241 can be configured as a servo motor.

[0082] The frame 400 is also provided with a limiting slide rail 410 arranged parallel to the bidirectional screw rod 242. The first guide rail 210 and the second guide rail 220 are both slidably connected to the limiting slide rail 410 through a slider, and the first guide rail 210 and the second guide rail 220 are also fixedly connected to the first nut seat 243 and the second nut seat 244 respectively.

[0083] When the width of the material guide groove 230 needs to be adjusted to adapt to the COF material strip 300 of corresponding width, the second driving member 241 drives the bidirectional screw rod 242 to rotate, and the first nut seat 243 and the second nut seat 244 drive the first guide rail 210 and the second guide rail 220 to slide synchronously in the direction of approaching or moving away from each other.

[0084] In this way, the width of the material transfer guide groove 230 can be adjusted without setting up two independent driving structures, thus saving corresponding structural costs. The coordinated arrangement of the bidirectional screw rod 242, the first nut seat 243 and the second nut seat 244 can enable the first guide rail 210 and the second guide rail 220 to move precisely and synchronously, so that the central axis of the material transfer guide groove 230 is always maintained in a position state within the radial cross-section of the carrier wheel 120, thereby improving the efficiency of loading COF tapes 300 of different widths onto the carrier wheel 120 and the material transfer guide groove 230, and further ensuring the accuracy of the COF tape 300 running along the material transfer guide groove 230.

[0085] In addition, in some embodiments, the guide rail assembly (200) as a whole can be raised and lowered relative to the carrier wheel (120) to adjust the relative height of the material transfer guide groove 230 and the first annular groove 121, the second annular groove 122 and the third annular groove 123, so that the docking height of the material transfer guide groove 230 and the first annular groove 121, the second annular groove 122 and the third annular groove 123 is controlled within a preset range to avoid excessive bending of the COF tape 300.

[0086] For example, a lift (not shown in the figure) may be provided on the frame 400, and the output end of the lift is connected to the guide rail assembly (200) to drive the guide rail assembly (200) to rise and fall as a whole.

[0087] In some embodiments of the present application, see Figure 7 and Figure 8 The end of the first guide rail 210 close to the carrier wheel 120 and the end of the second guide rail 220 close to the carrier wheel 120 are both provided with a transition piece 250, and the transition piece 250 is used to guide the COF tape 300 to the material guide groove 230, and the transition piece 250 is constructed as an anti-static structure.

[0088] Specifically, the transition piece 250 covers the end of the first guide rail 210 close to the carrier wheel 120 , and the portion where the transition piece 250 contacts the COF tape 300 is configured as an arc surface, and the arc surface of the transition piece 250 is transitionally connected to the surface of the first guide rail 210 in an arc shape.

[0089] By setting the transition piece 250, the transition piece 250 can block the rectangular chamfer at the end of the first guide rail 210, so that the COF tape 300 will not be scratched by the rectangular chamfer at the end of the first guide rail 210 when it is conveyed from the carrier wheel 120 to the material transfer guide groove 230.

[0090] The structure and function of the transition piece 250 on the second guide rail 220 are similar and will not be described in detail here.

[0091] In addition, it should be noted that a large number of electronic components are arranged on the COF tape 300. By constructing the transition piece 250 as an anti-static structure, the transition piece 250 can quickly conduct away the static charge generated by friction when the COF tape 300 is conveyed from the carrier wheel 120 to the material guide groove 230, thereby preventing the static charge from accumulating on the COF tape 300 and causing damage to the electronic components on the COF tape 300.

[0092] A conductive agent layer or an antistatic agent layer may be disposed on the surface of the transition piece 250, so that the transition piece 250 is an antistatic structure. In other embodiments, the transition piece 250 may also be an antistatic steel structure.

[0093] In some embodiments of the present application, see Figure 7 and Figure 8 The driving assembly 100 also includes a limit member 130, which is disposed in the docking area R between the material transfer guide groove 230 and the first annular groove 121. The limit member 130 abuts against the COF material strip 300 in the docking area R so that the highest point of the COF material strip 300 in the docking area R is located in the extension plane of the material transfer guide groove 230.

[0094] It should be noted that the docking area R refers to the gap space between the end of the material transfer groove 230 and the first annular groove 121 , and also corresponds to the transition space where the COF material strip 300 extends from the first annular groove 121 to the material transfer groove 230 .

[0095] The limiting member 130 may be a limiting roller rotatably mounted on the frame 400 , the limiting roller is located in the docking area R, and the axis of the limiting roller is parallel to the axis of the carrier wheel 120 . The lowest point of the limiting roller is flush with the surface of the material guide groove 230 .

[0096] When the COF material strip 300 extends from the first annular groove 121 to the material transfer guide groove 230, the upper surface of the COF material strip 300 is tangent to the limiting roller, so that the limiting roller presses against the COF material strip 300 in the docking area R, so that the highest point of the COF material strip 300 in the docking area R is flush with the surface of the material transfer guide groove 230.

[0097] It can be understood that the limiting roller defines the highest point of the COF material tape 300 in the docking area R, so that the COF material tape 300 can be effectively prevented from bending and protruding upward during the process of extending from the first annular groove 121 to the material transfer guide groove 230, so that the COF material tape 300 can maintain a relatively straight state during the transition to the material transfer guide groove 230, thereby allowing the COF material tape 300 to run stably along the material transfer guide groove 230, reducing the probability of the COF material tape 300 being pulled and damaged.

[0098] Similarly, the limiting roller can be set to an anti-static structure, such as an anti-static steel structure, so as to quickly discharge the static charge generated by friction when the COF tape 300 is conveyed from the carrier wheel 120 to the material guide groove 230, thereby avoiding the accumulation of static charge on the COF tape 300 and causing damage to the electronic components on the COF tape 300.

[0099] In some embodiments of the present application, see Figure 3 and Figure 4 The guide rail assembly 200 further includes a holding assembly 260 , which is spaced apart from the material transfer guide groove 230 . The holding assembly 260 holds the COF material strip 300 on the material transfer guide groove 230 each time the COF material strip 300 moves a preset distance along the material transfer guide groove 230 .

[0100] Specifically, see Figure 4 The pressing assembly 260 includes a third driving member 261 and a pressing block 262. The output end of the third driving member 261 is connected to the pressing block 262 to drive the pressing block 262 to rise and fall relative to the material transfer guide groove 230, so that the pressing block 262 presses and fixes the COF material strip 300 on the material transfer guide groove 230 or disengages from the pressing of the COF material strip 300. The third driving member 261 can be a cylinder. The pressing assembly 260 can have multiple pressing assemblies 260, and the multiple pressing assemblies 260 are arranged at intervals along the length direction or width direction of the material transfer guide groove 230.

[0101] It should be noted that see Fig.10 A plurality of continuous COF units (320) are arranged on the COF tape 300 along the extension direction. During the running of the COF tape 300, the carrier wheel 120 rotates intermittently, so that the COF tape 300 runs intermittently, so that a processing device (not shown in the figure) at a predetermined position on the frame 400 performs processing such as gluing and patching on the COF units (320) on the COF tape 300.

[0102] Specifically, the first driving mechanism 110 drives the carrier wheel 120 to rotate one cycle angle each time, and the COF tape 300 moves along the material guide groove 230 by a distance of one COF unit (320). Then, the carrier wheel 120 stops rotating for a preset time, so that the COF tape 300 stops moving for a preset time, and the preset time corresponds to the time for the processing device to process the COF unit (320) on the COF tape 300.

[0103] Based on this, by setting the pressing component 260, the pressing component 260 presses the COF material tape 300 on the material transfer guide groove 230 every time the COF material tape 300 moves a preset distance along the material transfer guide groove 230, so that the COF material tape 300 is pressed and limited by the pressing component 260 when the tape stops running, thereby preventing the COF material tape 300 from slipping, deflecting, bending, etc. when the processing device processes the COF unit (320) on the COF material tape 300, which affects the processing quality.

[0104] See also Figure 3 and Figure 8 In some embodiments of the present application, the drive assembly 100 also includes a position adjustment mechanism 140, which is used to adjust the position of the carrier wheel 120 relative to the first guide rail 210 so that the axis of the first annular groove 121 is perpendicular to the feed guide groove 230, and the vertical projection of the first annular groove 121 relative to the plane where the feed guide groove 230 is located is within the plane where the feed guide groove 230 is located.

[0105] During the early debugging process of the material conveying device of the present application, the position of the carrier wheel 120 can be fine-tuned by the position adjustment mechanism 140, so that the axis of the first annular groove 121 on the carrier wheel 120 is perpendicular to the material transfer guide groove 230, and the vertical projection of the first annular groove 121 relative to the plane where the material transfer guide groove 230 is located is within the plane where the material transfer guide groove 230 is located, so that the material transfer guide groove 230 and the first annular groove 121 are directly connected, thereby reducing the probability of the COF material belt 300 hard collision with the two sides of the first annular groove 121 during the running process, and further allowing the COF material belt 300 to run accurately and stably.

[0106] Further, see Figure 3 and Figure 8 The position adjustment mechanism 140 includes a base 141, a connecting seat 142, a connecting seat 142, a first locking member (not shown in the figure), a mounting seat 143 and a second locking member (not shown in the figure).

[0107] The connecting seat 142 is slidably mounted on the base 141 so as to be able to slide in a direction perpendicular to the first guide rail 210. The first locking member is used to lock the connecting seat 142 to the base 141. The mounting seat 143 is disposed on the connecting seat 142 and can swing relative to the connecting seat 142. The first driving mechanism 110 is disposed on the mounting seat 143, and the output end of the first driving mechanism 110 is drivingly connected to the tape carrier wheel 120. The second locking member is used to lock the mounting seat 143 to the connecting seat 142.

[0108] Specifically, the base 141 is provided with a dovetail groove perpendicular to the first guide rail 210, and the connecting seat 142 is provided with a dovetail block that slides with the dovetail groove. The mounting seat 143 is rotatably connected to the connecting seat 142 via a rotating pin in the middle of the connecting seat 142. The first locking member and the second locking member are both configured as tightening bolts, the first locking member is threadedly matched with the bolt hole on the connecting seat 142, and the second locking member is threadedly matched with the bolt hole on the connecting seat 142.

[0109] It is easy to understand that by sliding the connecting seat 142 along the base 141, the position of the carrier wheel 120 on the mounting seat 143 in the direction perpendicular to the first guide rail 210 is adjusted, and then, the connecting seat 142 is locked to the base 141 by the first locking member to fix the position of the carrier wheel 120 in the direction perpendicular to the first guide rail 210.

[0110] The mounting seat 143 drives the first driving mechanism 110 thereon to swing relative to the connecting seat 142 to adjust the axis position of the carrier wheel 120, and then the mounting seat 143 is locked to the connecting seat 142 by the second locking member to fix the axis position of the carrier wheel 120.

[0111] In this way, the position of the carrier wheel 120 relative to the material transfer guide groove 230 is fine-tuned so that the axis of the first annular groove 121 on the carrier wheel 120 is perpendicular to the material transfer guide groove 230, and the vertical projection of the first annular groove 121 relative to the plane where the material transfer guide groove 230 is located is within the plane where the material transfer guide groove 230 is located, so that the material transfer guide groove 230 and the first annular groove 121 are directly connected, thereby reducing the probability of the COF material tape 300 hard collision with the two sides of the first annular groove 121 during the running process, and further allowing the COF material tape 300 to run accurately and stably.

[0112] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0113] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A belt conveyor device, characterized in that: include: A driving assembly, comprising a first driving mechanism and a carrier wheel, wherein the first driving mechanism is used to drive the carrier wheel to rotate, and a first annular groove for the COF tape to be wound is formed on the circumferential surface of the carrier wheel; A guide rail assembly, comprising a first guide rail and a second guide rail that are parallel and spaced apart, wherein a material transfer guide groove is formed between the first guide rail and the second guide rail, and the material transfer guide groove is connected to the first annular groove to carry the COF material tape and provide the COF material tape for conveying; The surface of the first annular groove is provided with a plurality of first needle teeth along the circumferential direction, the surface of the COF material strip is provided with a plurality of first tooth openings along its length direction, and the first needle teeth are meshed with the first tooth openings.

2. The material belt conveying device according to claim 1, characterized in that: There are two tape-carrying wheels, and the first annular grooves on the two tape-carrying wheels are respectively connected with the opposite ends of the material transfer guide groove, and the two tape-carrying wheels rotate synchronously.

3. The material belt conveying device according to claim 1, characterized in that: A second annular groove for winding the COF tape is also formed on the circumferential surface of the carrier wheel, and the second annular groove is coaxially distributed with the first annular groove. The axial width of the second annular groove is greater than the axial width of the first annular groove, and a plurality of second needle teeth are circumferentially provided on the surface of the second annular groove, and the second needle teeth are used to engage with the first tooth opening.

4. The material belt conveying device according to claim 3, characterized in that: A third annular groove for winding the COF tape is also formed on the circumferential surface of the carrier wheel, the axial width of the third annular groove is greater than the axial width of the second annular groove, and the first annular groove, the second annular groove and the third annular groove are spaced in sequence along the radial direction of the carrier wheel, and a plurality of third needle teeth are circumferentially provided on the surface of the third annular groove, and the third needle teeth are used to engage with the first tooth opening.

5. The material belt conveying device according to claim 3 or 4, characterized in that: The guide rail assembly also includes a second driving mechanism, and the second driving mechanism is used to drive the first guide rail and the second guide rail to move toward or away from each other.

6. The material belt conveying device according to claim 1, characterized in that: The end of the first guide rail close to the carrier wheel and the end of the second guide rail close to the carrier wheel are both provided with transition pieces, the transition pieces are used to guide the COF tape to the material transfer guide groove, and the transition pieces are constructed as anti-static structures.

7. The material belt conveying device according to claim 1, characterized in that: The drive assembly also includes a limit member, which is arranged in the docking area between the material transfer guide groove and the first annular groove, and the limit member abuts against the COF material strip in the docking area so that the highest point of the COF material strip in the docking area is located in the extension plane of the material transfer guide groove.

8. The material belt conveying device according to claim 1, characterized in that: The guide rail assembly further includes a pressing assembly, which is spaced apart from the material transfer guide groove and presses the COF material strip on the material transfer guide groove each time the COF material strip moves a preset distance along the material transfer guide groove.

9. The material belt conveying device according to claim 1, characterized in that: The driving assembly also includes a position adjustment mechanism, which is used to adjust the position of the carrier wheel relative to the first guide rail so that the axis of the first annular groove is perpendicular to the material transfer guide groove and the vertical projection of the first annular groove relative to the plane where the material transfer guide groove is located is within the plane where the material transfer guide groove is located.

10. The material belt conveying device according to claim 9, characterized in that: The position adjustment mechanism comprises: Pedestal; A connecting seat, the connecting seat being slidably mounted on the base so as to be able to slide in a direction perpendicular to the first guide rail; A first locking member, used to lock the connecting seat to the base; A mounting seat, the mounting seat is arranged on the connecting seat and can swing relative to the connecting seat, the first driving mechanism is arranged on the mounting seat, and the output end of the first driving mechanism is drivingly connected to the tape carrier wheel; The second locking member is used to lock the mounting seat to the connecting seat.

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