Transfer head and transfer device

Abstract

The utility model discloses a transfer head and a transfer device.The transfer head comprises a transfer head body and colloid, the transfer head body comprises a first connecting section and a second connecting section, the second connecting section is of a strip-shaped structure, and the first end of the second connecting section is connected with the first end of the first connecting section; an included angle is formed between the second connecting section and the first connecting section; the colloid is arranged at the second end of the second connecting section and used for picking up the to-be-transferred element. The transfer head is simple in structure and can improve the transfer success rate.

Description

Technical Field

[0001] This application relates to the field of component transfer technology, and in particular to a transfer head and a transfer device. Background Technology

[0002] Using a transfer head to transfer components is a common process in the manufacturing of display panels. During the transfer, the transfer head is used to transfer components from one substrate to another. In order to ensure the yield of the display panel, the components need to be accurately transferred to the target position during the transfer. However, the structure of the transfer head can affect the transfer position of the components to a certain extent. Therefore, how to improve the transfer yield by improving the structure of the transfer head has always been a research hotspot in the industry. Utility Model Content

[0003] This application provides a transfer head and a transfer device. The transfer head has a simple structure and can improve the success rate of transfer.

[0004] The first aspect of this application provides a transfer head, including: a transfer head body, including a first connecting segment and a second connecting segment, the second connecting segment having a strip-shaped structure, a first end of the second connecting segment being connected to a first end of the first connecting segment, and the second connecting segment and the first connecting segment forming an angle; and a colloid disposed at a second end of the second connecting segment for picking up the element to be transferred.

[0005] The first connecting segment has a strip-shaped structure.

[0006] The angle formed between the second connecting segment and the first connecting segment is an obtuse angle.

[0007] The included angle between the second connecting segment and the first connecting segment is in the range of 100° to 120°.

[0008] Specifically, in the direction close to the colloid, the cross-sectional dimension of the second end of the second connecting segment perpendicular to the axial direction is reduced.

[0009] The second end of the second connecting segment has a pointed structure.

[0010] The second end of the second connecting segment has a conical structure.

[0011] The cross-sectional shape of the second connecting segment perpendicular to the axial direction is the same as that of the first connecting segment perpendicular to the axial direction.

[0012] The cross-sectional dimensions of the second connecting segment perpendicular to the axial direction are the same as those of the first connecting segment perpendicular to the axial direction.

[0013] The cross-section of the second connecting segment perpendicular to the axial direction and the cross-section of the first connecting segment perpendicular to the axial direction are both circular.

[0014] The diameter of the second connecting segment is in the range of 10 to 20 micrometers, and the diameter of the first connecting segment is in the range of 10 to 20 micrometers.

[0015] The diameter of the second connecting segment is equal to the diameter of the first connecting segment.

[0016] The material of the second connecting segment includes metal, and the material of the first connecting segment also includes metal.

[0017] The material of the second connecting segment includes at least one of steel and copper; the material of the first connecting segment includes at least one of steel and copper.

[0018] The material of the second connecting segment is the same as that of the first connecting segment.

[0019] The second connecting segment is integrally formed with the first connecting segment, or the second connecting segment is movably connected to the first connecting segment.

[0020] The length of the first connecting segment is greater than the length of the second connecting segment.

[0021] The length of the first connecting segment ranges from 200 to 300 millimeters.

[0022] The length of the second connecting segment ranges from 150 to 200 millimeters.

[0023] The material of the colloid includes organic adhesive.

[0024] The material of the colloid includes at least one of polydimethylsiloxane, polyvinyl alcohol, and UV adhesive.

[0025] It also includes a fixing base, wherein the second end of the first connecting segment is connected to the fixing base.

[0026] The material of the fixing base includes metal.

[0027] The material of the fixing base includes at least one of steel and copper.

[0028] The second end of the first connecting segment is detachably connected to the fixed base.

[0029] The transfer head also includes a locking member. The fixing base is provided with a slot, and the bottom of the slot is provided with a locking hole. The second end of the first connecting section is connected to a bent part. When the second end of the first connecting section is located in the slot, the bent part extends into the locking hole, and the locking member is inserted into the locking hole to lock the bent part in the locking hole.

[0030] A second aspect of this application provides a transfer device including a transfer head as described above.

[0031] The beneficial effects are as follows: The second connecting segment in this application has a strip-shaped structure. On the one hand, this avoids the second connecting segment affecting other components when picking up and bonding a single component to be transferred. On the other hand, the second connecting segment can also extend into deep holes to pick up and bond components to be transferred, making it suitable for various application scenarios. Therefore, the transfer head structure of this application is simple and can accurately pick up and bond components to be transferred, improving the success rate of transfer. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0033] Figure 1 This is a schematic diagram of the structure of one embodiment of the transfer header of this application;

[0034] Figure 2 This is a schematic diagram of another embodiment of the transfer head of this application;

[0035] Figure 3 This is a schematic diagram of another embodiment of the transfer head of this application;

[0036] Figure 4 This is a schematic diagram of another embodiment of the transfer head of this application;

[0037] Figure 5 yes Figure 3 A top view of the fixed base in one embodiment. Detailed Implementation

[0038] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0039] It should be noted that the terms "first" and "second" in this application are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0040] See Figure 1 , Figure 1 This is a schematic diagram of a transfer head embodiment of the present application. The transfer head 100 includes a transfer head body 110 and a colloid 120.

[0041] The transfer head body 110 includes a first connecting segment 111 and a second connecting segment 112. The second connecting segment 112 has a strip-shaped structure. The first end 1121 of the second connecting segment 112 is connected to the first end 1111 of the first connecting segment 111, and an angle is formed between the second connecting segment 112 and the first connecting segment 111.

[0042] The colloid 120 is connected to the second end 1122 of the second connecting section 112, that is, the colloid 120 is disposed at the second end 1122 of the second connecting section 112 for picking up the component to be transferred.

[0043] Specifically, the first connecting section 111 is used to connect the transfer head body 110 to the transfer device. The first connecting section 111 can be directly connected to the transfer device or indirectly connected to the transfer device through a fixed base. The specific structure of the fixed base can be described in the following text. The transfer device can be a three-axis motion mechanism that can drive the transfer head 100 to move in the X, Y, and Z directions.

[0044] The first end 1121 of the second connecting segment 112 is connected to the first end 1111 of the first connecting segment 111, and the second end 1122 of the second connecting segment 112 is connected to the colloid 120. The colloid 120 is adhesive and uses its adhesiveness to bond the component to be transferred, thereby achieving the picking up of the component to be transferred. When transferring the component to be transferred, the transfer device drives the transfer head 100 to the position of the component to be transferred, and causes the colloid 120 to bond the component to be transferred. Then the transfer device continues to move, so that the component to be transferred reaches the target position under the drive of the transfer head 100 and is fixed at the target position.

[0045] Meanwhile, the second connecting segment 112 has a strip-shaped structure. On the one hand, it can prevent the second connecting segment 112 from affecting other components when picking up and bonding a single component to be transferred. On the other hand, the second connecting segment 112 can also extend into deep holes to pick up and bond components to be transferred, making it suitable for various application scenarios. Even in inverted trapezoidal holes, the second connecting segment 112 of this application can reach the bottom of the hole. Therefore, the transfer head 100 of this application has a simple structure and can pick up and bond components to be transferred upright and stably, thereby improving the success rate of transfer.

[0046] Meanwhile, the extension direction of the first connecting segment 111 intersects the extension direction of the second connecting segment 112, that is, an included angle β is formed between the first connecting segment 111 and the second connecting segment 112. The setting of this included angle β can prevent the first connecting segment 111 from blocking the top of the component to be transferred when the colloid 120 picks up the component to be transferred. Therefore, this setting allows the operator to directly observe whether the colloid 120 has successfully picked up the component to be transferred.

[0047] In one embodiment, after the transfer head picks up the element to be transferred more than 100 times (e.g., hundreds of times), the colloid 120 may be consumed, and the colloid 120 can be reformed on the second end 1122 of the second connecting section 112.

[0048] In one embodiment, the transfer head 100 can extend into a hole with a depth of 200 micrometers to pick up the element to be transferred.

[0049] Continue reading Figure 1 In one embodiment, the first connecting segment 111 is also a strip-shaped structure, which further ensures that the transfer head body 110 can extend into deeper holes. Of course, in other embodiments, the first connecting segment 111 can also be a block-shaped structure.

[0050] Continue reading Figure 1 The included angle β formed between the second connecting segment 112 and the first connecting segment 111 is an obtuse angle. Compared with an acute angle or a right angle, the obtuse angle allows the second connecting segment 112 to extend into a deeper hole and also avoids interference between the first connecting segment 111 and the element to be transferred during the transfer process.

[0051] In one embodiment, the included angle β formed between the second connecting segment 112 and the first connecting segment 111 is in the range of 100° to 120°. For example, β is 100°, 110° or 120°. The specific angle β can be set according to actual needs and is not limited here.

[0052] See Figure 2In the direction near the colloid 120, the cross-sectional area of ​​the second end 1122 of the second connecting segment 112 perpendicular to the axial direction decreases. Specifically, in the direction near the colloid 120, the area of ​​the cross-sectional area of ​​the second end 1122 of the second connecting segment 112 perpendicular to the axial direction decreases, and in the direction near the colloid 120, the second end 1122 of the second connecting segment 112 becomes increasingly thinner. This allows the second connecting segment 112 to extend into pores with smaller diameters, and also reduces the amount of colloid 120 used.

[0053] See Figure 2 The second end 1122 of the second connecting segment 112 has a pointed structure. At this time, the structure of the second connecting segment 112 is similar to that of a needle. This setting can enable the transfer head 100 to pick up small-sized components to be transferred and improve the accuracy of picking up components to be transferred. It can also reduce the amount of colloid 120 used and avoid contaminating the components to be transferred with colloid 120.

[0054] See Figure 2 The second end 1122 of the second connecting segment 112 can specifically be a conical structure. In other embodiments, the second end 1122 of the second connecting segment 112 can also be other structures such as a triangular pyramid, and there is no limitation here.

[0055] In one embodiment, the cross-sectional shape of the second connecting segment 112 perpendicular to the axial direction and the cross-sectional shape of the first connecting segment 111 perpendicular to the axial direction are the same. For example, the cross-sections of the second connecting segment 112 and the first connecting segment 111 perpendicular to the axial direction are both circular, square, or triangular, etc., and can be set according to requirements.

[0056] In one embodiment, the cross-sectional dimensions of the second connecting segment 112 perpendicular to the axial direction and the cross-sectional dimensions of the first connecting segment 111 perpendicular to the axial direction are the same. Specifically, the cross-sectional areas of the second connecting segment 112 perpendicular to the axial direction and the cross-sectional areas of the first connecting segment 111 perpendicular to the axial direction are equal.

[0057] In one embodiment, the diameter of the second connecting segment 112 is in the range of 10 to 20 micrometers, for example, the diameter of the second connecting segment 112 is 10 micrometers, 15 micrometers or 20 micrometers, etc.; the diameter of the first connecting segment 111 is in the range of 10 to 20 micrometers, for example, the diameter of the first connecting segment 111 is 10 micrometers, 15 micrometers or 20 micrometers, etc.

[0058] In one embodiment, the diameter of the second connecting segment 112 is equal to the diameter of the first connecting segment 111; in another embodiment, the diameter of the second connecting segment 112 is smaller than the diameter of the first connecting segment 111, thereby ensuring the connection strength between the first connecting segment 111 and the transfer device, and also allowing the second connecting segment 112 to extend into a smaller aperture to pick up and bond the component to be transferred.

[0059] In one embodiment, the second connecting segment 112 is made of metal, and the first connecting segment 111 is also made of metal. Metals generally have high strength and corrosion resistance, which can ensure the lifespan of the transfer head 100. In other embodiments, the second connecting segment 112 may be made of metal, while the first connecting segment 111 may be made of plastic or the like.

[0060] In one embodiment, the material of the second connecting segment 112 includes at least one of steel and copper; for example, the material of the second connecting segment 112 includes steel, copper, or a steel-copper alloy. In one embodiment, the material of the first connecting segment 111 includes at least one of steel and copper; for example, the material of the first connecting segment 111 includes steel, copper, or a steel-copper alloy. It should be noted that this application does not impose specific limitations on the materials of the first connecting segment 111 and the second connecting segment 112.

[0061] In one embodiment, to reduce the types of materials used in the preparation process, lower costs, and improve preparation efficiency, the material of the second connecting segment 112 is the same as that of the first connecting segment 111. For example, both the material of the second connecting segment 112 and the material of the first connecting segment 111 include copper. Of course, in other embodiments, the materials of the second connecting segment 112 and the first connecting segment 111 may be different, and the specific setting can be made according to actual needs.

[0062] In one embodiment, the second connecting segment 112 is integrally formed with the first connecting segment 111 to ensure the connection strength between the second connecting segment 112 and the first connecting segment 111. In other embodiments, the second connecting segment 112 and the first connecting segment 111 can also be prepared separately and then fixedly connected together by welding or other methods.

[0063] In other embodiments, the second connecting segment 112 is movably connected to the first connecting segment 111, thereby adjusting the angle β between the second connecting segment 112 and the first connecting segment 111 according to different application scenarios to meet the usage requirements of various scenarios. For example, the first end 1121 of the second connecting segment 112 is movably connected to the first end 1111 of the first connecting segment 111 via a rotating shaft. At the same time, a damper is also connected between the first end 1121 of the second connecting segment 112 and the first end 1111 of the first connecting segment 111 to provide damping for the rotation between the first connecting segment 111 and the second connecting segment 112, so that the first connecting segment 111 can rotate relative to the second connecting segment 112 under the action of external force, and when the external force is removed, the first connecting segment 111 is fixed relative to the second connecting segment 112.

[0064] In one embodiment, the length of the first connecting segment 111 is greater than the length of the second connecting segment 112 to ensure that the transfer head 100 is fixedly connected to the transfer device. Of course, in other embodiments, the length of the first connecting segment 111 may also be greater than or equal to the length of the second connecting segment 112, and the specific setting can be made according to the requirements, which is not limited here.

[0065] In one embodiment, the length of the first connecting segment 111 is in the range of 200 to 300 millimeters, for example, the length of the first connecting segment 111 is 200 millimeters, 250 millimeters or 300 millimeters, etc.

[0066] In one embodiment, the length of the second connecting segment 112 is in the range of 150 to 200 mm, for example, the length of the second connecting segment 112 is 150 mm, 160 mm, 180 mm or 200 mm, etc.

[0067] In one embodiment, the material of colloid 120 includes an organic adhesive, such as at least one selected from polydimethylsiloxane, polyvinyl alcohol, and UV adhesive. It should be noted that this application does not limit the material of colloid 120, as long as colloid 120 is viscous.

[0068] Combination Figure 1 as well as Figure 3 In one embodiment, the transfer head 100 further includes a fixing seat 130, and the second end 1112 of the first connecting segment 111 is connected to the fixing seat 130. The fixing seat 130 is used to install on the transfer device, thereby realizing the connection between the transfer head 100 and the transfer device.

[0069] In one embodiment, the material of the fixing base 130 includes metal, which generally has high strength and corrosion resistance, thus ensuring the service life of the fixing base 130.

[0070] In one embodiment, the material of the fixing base 130 includes at least one of steel and copper. For example, the material of the fixing base 130 includes steel, copper, or an alloy of steel and copper.

[0071] In one embodiment, the second end 1112 of the first connecting segment 111 is detachably connected to the fixing base 130. This allows the first connecting segment 111 to be disassembled from the fixing base 130 and replaced with a new component when the transfer head body 110 or the fixing base 130 is damaged, thus extending its service life. Alternatively, in different application scenarios, the transfer head body 110 of different sizes can be replaced (e.g., the length and diameter of the second connecting segment 112 may differ) to meet different usage requirements.

[0072] It should be noted that in other embodiments, the first connecting segment 111 and the fixing base 130 may also be connected in a non-detachable manner.

[0073] In one embodiment, combined with Figure 1 , Figure 3 , Figure 4 as well as Figure 5 The transfer head 100 also includes a locking member 140. The fixing base 130 is provided with a slot 131. The bottom of the slot 131 is provided with a locking hole 132. The second end 1112 of the first connecting section 111 is connected to a bent part 113. When the second end 1112 of the first connecting section 111 is located in the slot 131, the bent part 113 extends into the locking hole 132. The locking member 140 is inserted into the locking hole 132 to lock the bent part 113 in the locking hole 132.

[0074] Specifically, during installation, the first connecting section 111 is placed in the slot 131, and the bent part 113 is inserted into the locking hole 132. Then, the locking member 140 is inserted into the locking hole 132 to lock it, thereby locking the fixed base 130 and the transfer head body 110.

[0075] In one embodiment, the locking hole 132 is a threaded hole, and the locking element 140 is a bolt. In other embodiments, the locking hole 132 may also be a hole with smooth walls, and the locking element 140 may be a pin.

[0076] In other embodiments, elastic members are protruding on the two oppositely arranged groove walls of the slot 131. During installation, the first connecting segment 111 is squeezed into the slot 131 by external force. During the squeezing process, the elastic members contract. When the first connecting segment 111 reaches the bottom of the groove, the elastic members restore their deformation, thereby limiting the first connecting segment 111 in the slot 131.

[0077] Alternatively, in other embodiments, the fixing base 130 and the first connecting segment 111 can be detachably connected by magnetic attraction. In summary, this application does not limit the specific connection method between the fixing base 130 and the first connecting segment 111.

[0078] In addition, this application also protects a transfer device, including the transfer head in any of the above embodiments. For details on the specific structure of the transfer head, please refer to the relevant content above, which will not be repeated here.

[0079] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A transfer head, characterized in that, include: The transfer head body includes a first connecting segment and a second connecting segment. The second connecting segment has a strip-shaped structure. The first end of the second connecting segment is connected to the first end of the first connecting segment, and an angle is formed between the second connecting segment and the first connecting segment. A colloid, disposed at the second end of the second connecting segment, is used to pick up the component to be transferred.

2. The transfer head according to claim 1, characterized in that, The first connecting segment has a strip-shaped structure.

3. The transfer head according to claim 1, characterized in that, The angle formed between the second connecting segment and the first connecting segment is an obtuse angle.

4. The transfer head according to claim 3, characterized in that, The angle between the second connecting segment and the first connecting segment is in the range of 100° to 120°.

5. The transfer head according to claim 1, characterized in that, In the direction close to the colloid, the dimension of the cross section perpendicular to the axial direction at the second end of the second connecting segment decreases.

6. The transfer head according to claim 5, characterized in that, The second end of the second connecting segment has a pointed structure.

7. The transfer head according to claim 6, characterized in that, The second end of the second connecting segment has a conical structure.

8. The transfer head according to claim 1, characterized in that, The cross-sectional shape of the second connecting segment perpendicular to the axial direction is the same as that of the first connecting segment perpendicular to the axial direction.

9. The transfer head according to claim 8, characterized in that, The cross-sectional dimensions of the second connecting segment perpendicular to the axial direction are the same as those of the first connecting segment perpendicular to the axial direction.

10. The transfer head according to claim 9, characterized in that, Both the cross-section of the second connecting segment perpendicular to the axial direction and the cross-section of the first connecting segment perpendicular to the axial direction are circular.

11. The transfer head according to claim 10, characterized in that, The diameter of the second connecting segment ranges from 10 to 20 micrometers, and the diameter of the first connecting segment ranges from 10 to 20 micrometers.

12. The transfer head according to claim 10, characterized in that, The diameter of the second connecting segment is equal to the diameter of the first connecting segment.

13. The transfer head according to claim 1, characterized in that, The material of the second connecting segment includes metal, and the material of the first connecting segment also includes metal.

14. The transfer head according to claim 13, characterized in that, The material of the second connecting segment includes at least one of steel and copper; the material of the first connecting segment includes at least one of steel and copper.

15. The transfer head according to claim 13, characterized in that, The material of the second connecting segment is the same as that of the first connecting segment.

16. The transfer head according to claim 1, characterized in that, The second connecting segment is integrally formed with the first connecting segment, or the second connecting segment is movably connected to the first connecting segment.

17. The transfer head according to claim 1, characterized in that, The length of the first connecting segment is greater than the length of the second connecting segment.

18. The transfer head according to claim 17, characterized in that, The length of the first connecting segment ranges from 200 to 300 millimeters.

19. The transfer head according to claim 17, characterized in that, The length of the second connecting segment ranges from 150 to 200 millimeters.

20. The transfer head according to claim 1, characterized in that, The material of the colloid includes organic adhesives.

21. The transfer head according to claim 20, characterized in that, The material of the colloid includes at least one of polydimethylsiloxane, polyvinyl alcohol, and UV adhesive.

22. The transfer head according to claim 1, characterized in that, Also includes: A fixed base, wherein the second end of the first connecting segment is connected to the fixed base.

23. The transfer head according to claim 22, characterized in that, The material of the mounting base includes metal.

24. The transfer head according to claim 23, characterized in that, The material of the mounting base includes at least one of steel and copper.

25. The transfer head according to claim 22, characterized in that, The second end of the first connecting segment is detachably connected to the fixed base.

26. The transfer head according to claim 25, characterized in that, The transfer head also includes a locking member. The fixing base is provided with a slot, and the bottom of the slot is provided with a locking hole. The second end of the first connecting section is connected to a bent part. When the second end of the first connecting section is located in the slot, the bent part extends into the locking hole, and the locking member is inserted into the locking hole to lock the bent part in the locking hole.

27. A transfer device, characterized in that, Includes the transfer head as described in any one of claims 1 to 26.

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